CN118750382A - Nutrition infusion tube assembly method for nutrition infusion device and nutrition infusion system - Google Patents

Abstract

The embodiment of the application provides a nutrition infusion tube assembly method for a nutrition infusion device and a nutrition infusion system. The nutrient infusion device comprises a roller and a fixing component, the nutrient infusion tube comprises a peristaltic tube, an input tube connector, an output tube connector, a conveying tube and a supporting plate, the input tube connector and the output tube connector are both fixed on the supporting plate, the peristaltic tube is connected between the input tube connector and the output tube connector, and the maximum distance between the peristaltic tube in the first direction is greater than or equal to the maximum distance between any two points on the roller; the assembly method comprises the following steps: sleeving the peristaltic tube on the periphery of the roller; applying an external force to enable the support plate to move in a direction perpendicular to the first direction to reach a preset position; the support plate is fixed with the fixing component so that the peristaltic tube is kept in abutting contact with at least part of the roller in a straight manner. According to the embodiment of the application, an operator can hold the peristaltic tube by one hand and easily sleeve the peristaltic tube on the periphery of the roller, so that the operation difficulty is low.

Description

Nutrition infusion tube assembly method for nutrition infusion device and nutrition infusion system

Technical Field

The present application relates to the technical field of medical infusion equipment, and in particular to a method for assembling a nutrition infusion tube for a nutrition infusion device and a nutrition infusion system.

Background Art

The nutrition infusion system composed of a nutrition infusion tube and a nutrition infusion device is a medical device used to infuse water, nutrient solution, and homemade rice milk of a certain concentration into patients. Generally, the nutrition infusion tube is installed in the nutrition infusion device. The nutrition infusion device can provide driving force for the liquid in the nutrition infusion tube, promote the movement of the liquid therein, and deliver fluids such as nutrient solution to the patient.

In the prior art, when an operator assembles a nutrition infusion tube into a nutrition infusion device, the operator needs to use both hands to successfully install the tube, which is inconvenient and the assembly method is complicated.

Summary of the invention

The embodiment of the present application provides an assembly method for a nutrition infusion tube for a nutrition infusion device and a nutrition infusion system. The assembly method provided in the embodiment of the present application allows an operator to operate with one hand, which is convenient for the operator to use, and reduces the assembly steps for installing the nutrition infusion tube on the nutrition infusion device, which is conducive to realizing a faster and simpler assembly process of the nutrition infusion system.

In a first aspect, an embodiment of the present application provides an assembly method for a nutrition infusion tube for a nutrition infusion device, wherein the nutrition infusion device comprises a driving assembly and a fixing assembly, wherein the driving assembly comprises a roller; the nutrition infusion tube comprises a peristaltic tube, an input tube connector, an output tube connector, a delivery tube and a support plate, wherein the input tube connector and the output tube connector are both fixed to the support plate, wherein one end of the input tube connector is connected to an input end of the peristaltic tube, and the other end is connected to at least one delivery tube, and one end of the output tube connector is connected to an output end of the peristaltic tube, and the other end is connected to another delivery tube, wherein a maximum spacing of the peristaltic tube in a first direction is greater than or equal to a maximum spacing between any two points on the roller; the assembly method comprises:

The peristaltic tube is sleeved on the outer circumference of the roller;

Applying an external force causes the support plate to move in a direction perpendicular to the first direction to reach a preset position;

The support plate is fixed to the fixing assembly so that the peristaltic tube is kept in a straight position and in contact with at least a portion of the roller.

In a possible implementation, the peristaltic tube is sleeved on the outer circumference of the roller, including:

The peristaltic tube in a non-deformed state is sleeved on the outer circumference of the roller; or

The peristaltic tube in a non-deformed state is brought into contact with part of the outer circumference of the roller, and the contact point between the roller and the peristaltic tube is used as the fulcrum. The support plate is then moved to make the peristaltic tube slightly deformed, and then another part of the peristaltic tube is brought into contact with another part of the outer circumference of the roller.

In one possible implementation, one of the nutrition infusion device and the support plate includes a guide rail, and the other includes a guide groove; applying an external force causes the support plate to move in a direction away from the roller to reach a preset position, including: applying an external force causes the support plate to move in a direction perpendicular to the first direction, and move along the matching trajectory of the guide rail and the guide groove to reach the preset position.

In a possible implementation, the support plate is fixed to the fixing assembly so that the peristaltic tube is straightened and kept in contact with at least a portion of the roller, including:

The support plate is fixed to the fixing assembly so that the peristaltic tube is kept in a straight position and in contact with at least a portion of the roller, and the two ends of the peristaltic tube are symmetrically distributed relative to the roller.

In a possible implementation, the nutrition infusion device includes a shell, a fixing assembly is fixed to the shell, a roller is rotatably connected relative to the shell, the shell has a mounting surface, a support plate is mounted on the mounting surface, the support plate has a top surface and a bottom surface, the top surface and the bottom surface are located on opposite sides of the support plate, and the bottom surface is closer to the mounting surface than the top surface; the top surface is provided with a slope, and the angle between the slope and the bottom surface is an acute angle;

Applying external force to make the support plate move in a direction away from the roller to reach a preset position includes: using the slope as a force point, applying external force to make the support plate move in a direction away from the roller to reach the preset position.

In a possible implementation, the nutrition infusion device includes a pump door, a tube pressing block is provided on the pump door, and two tube grooves are respectively provided between the roller and the fixing component; the assembly method further includes:

Close the pump door and use the tube pressing block to push the peristaltic tube into the corresponding tube groove.

In a possible implementation, a protrusion is provided on the support plate to fix the support plate to the fixing assembly so that the peristaltic tube is straightened and kept in contact with at least part of the roller, including:

Applying external force causes the protrusion on the support plate to be squeezed into the fixing assembly, and the protrusion is clamped on the fixing assembly to fix the protrusion of the support plate and the fixing assembly, so that the peristaltic tube is straightened and kept in contact with at least part of the roller.

In a second aspect, an embodiment of the present application provides a nutrition infusion system, which is assembled by the above-mentioned assembly method, and the nutrition infusion system includes a nutrition infusion device and a nutrition infusion tube, and the nutrition infusion tube is detachably mounted on the nutrition infusion device;

The nutrition infusion device includes a drive assembly, and the drive assembly includes a roller;

The nutrition infusion tube includes a peristaltic tube, an input tube connector, an output tube connector, a delivery tube and a support plate. The input tube connector and the output tube connector are both fixed to the support plate. One end of the input tube connector is connected to the input end of the peristaltic tube, and the other end is connected to at least one delivery tube. One end of the output tube connector is connected to the output end of the peristaltic tube, and the other end is connected to another delivery tube.

The maximum spacing of the peristaltic tubes in the first direction is greater than or equal to the maximum spacing between any two points on the roller, and the first direction is perpendicular to the moving direction of the support plate.

In a possible implementation, the nutrition infusion device includes a guide rail, and the support plate includes a guide groove, and the guide rail cooperates with the guide groove to limit the moving direction of the support plate.

In one possible implementation, the guide rail includes a first guide rail and a second guide rail, the first guide rail is arranged closer to the roller than the second guide rail; the first guide rail and the second guide rail both extend in parallel and are staggered along a second direction, and the second direction is perpendicular to the first direction; the first guide rail and the second guide rail are stepped.

In a possible implementation, the nutrition infusion device includes a housing, a support plate is provided with a locking hole, the nutrition infusion device is provided with a locking member, the locking member is embedded in the locking hole, and the locking member can be rotatably connected or slidably connected to the housing to limit the relative position of the support plate and the nutrition infusion device;

And/or, the nutritional infusion device also includes a fixing component, which is fixed to the shell, the support plate includes a plate body and a protrusion, the input tube connector and the output tube connector are both fixed to the plate body, the protrusion is fixed to one side of the plate body, and after the nutritional infusion tube is installed in the nutritional infusion device, the protrusion is embedded in the fixing component.

In a third aspect, an embodiment of the present application also provides a method for assembling a nutrition infusion tube for a nutrition infusion device. The nutrition infusion device comprises a shell, a driving assembly and a fixing assembly, wherein the driving assembly comprises a roller, the roller is rotatably connected to the shell, the shell has a mounting surface, the nutrition infusion tube comprises a peristaltic tube, an input tube connector, an output tube connector, a delivery tube and a support plate, the input tube connector and the output tube connector are both fixed to the support plate, one end of the input tube connector is connected to the input end of the peristaltic tube, and the other end is connected to at least one delivery tube, one end of the output tube connector is connected to the output end of the peristaltic tube, and the other end is connected to another delivery tube, wherein the maximum spacing of the peristaltic tube in the first direction is greater than or equal to the maximum spacing of any two points on the roller; the nutrition infusion device comprises a guide rail, and the nutrition infusion tube comprises a guide groove; the support plate is mounted on the mounting surface, the support plate has a top surface and a bottom surface, the top surface and the bottom surface are located on opposite sides of the support plate, and the bottom surface is closer to the mounting surface than the top surface; the top surface is provided with a slope, and the angle between the slope and the bottom surface is an acute angle; the nutrition infusion device comprises a pump door, a tube pressing block is provided on the pump door, and two tube grooves are respectively provided between the roller and the fixing assembly; the assembly method comprises:

The peristaltic tube is sleeved on the outer circumference of the roller;

With the slope as a fulcrum, an external force is applied to make the support plate move in a direction perpendicular to the first direction toward a direction away from the roller, and move along the matching track of the guide rail and the guide groove to reach a preset position, wherein the first direction is parallel to the mounting surface;

The protrusion on the support plate is pressed into the fixing assembly to fix the support plate and the fixing assembly, so that the peristaltic tube is straightened and kept in contact with at least part of the roller;

Close the pump door and use the tube pressing block to push the peristaltic tube into the corresponding tube groove.

The embodiment of the present application sets the maximum spacing of the peristaltic tube in the first direction to be greater than or equal to the maximum spacing between any two points on the roller, so that the operator can hold the peristaltic tube with one hand and easily put it on the outer circumference of the roller, which solves the problem in the prior art that the operator needs to use both hands to pull or stretch the peristaltic tube first and then put it on the roller, thereby reducing the difficulty for the operator to install the nutrition infusion tube on the nutrition infusion device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of a nutrition infusion system provided in some embodiments of the present application;

FIG2 is a schematic structural diagram of the nutrition infusion system shown in FIG1 in another state;

FIG3 is a schematic structural diagram of the nutrition infusion tube shown in FIG2 in some embodiments;

FIG4 is a schematic structural diagram of the nutrition infusion tube shown in FIG3 from another perspective;

FIG5 is a schematic diagram of a partial structure of the nutrition infusion device shown in FIG2 in some embodiments;

FIG6 is a schematic structural diagram of the pump door shown in FIG2 from another perspective;

7 is a schematic diagram of an assembly method of a nutrition infusion tube for a nutrition infusion device provided in an embodiment of the present application;

FIG8 is a schematic diagram of the assembly process of the nutrition infusion system assembled by the assembly method shown in FIG7;

FIG. 9 is a schematic diagram of the structure of another nutrition infusion tube provided in an embodiment of the present application.

1-nutrition infusion system, 10-nutrition infusion tube, 11-peristaltic tube, 111-input end, 112-output end, 12-input tube connector, 121-reversing groove, 122-first part, 123-second part, 13-output tube connector, 131-third part, 132-fourth part, 14-delivery tube, 141-output tube, 142-input tube, 15-support plate, 151-plate body, 151a-top surface of support plate 15, 151b-bottom surface of support plate 15, 151c-slope, 152-bump, 153-locking hole, 154-support member, 20-nutrition infusion device, 201-bottom surface of nutrition infusion device 20, 21-shell, 211-installation surface, 211a-first installation surface, 211b-second installation surface, 211c-third installation surface, 22-pump door, 221-tube pressing block, 23-installation space, 23a-first installation space, 23b-second installation space, 23c-third installation space, 24-drive assembly, 241-roller, 241a-rotor, 25-tube groove, 251-ultrasonic bubble sensor, 252-pressure sensor, 26-fixing assembly, 27-locking member, 28-switching member, 29-display control area, 291-display screen, 292-button, 30-guide rail, 301-first guide rail, 302-second guide rail, 303-third guide rail, 31-guide groove.

DETAILED DESCRIPTION

The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Multiple" means at least two.

The directional terms mentioned in the embodiments of the present application, such as "upper", "inside", "outside", "top", "bottom", "side", etc., are only references to the directions of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

In the embodiments of the present application, the limitations of the relative position relationship mentioned, such as parallel, vertical, etc. These limitations are all for the current state of the art, rather than absolutely strict limitations, and a small amount of deviation is allowed, and it is possible to be approximately parallel, approximately vertical, etc. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Among them, an integrally formed structural part means that in the process of forming one part of the structural part, the part is connected to another part, and the two parts do not need to be connected together by further processing (such as bonding, welding, snap connection, screw connection).

Please refer to Figure 1 and Figure 2 in combination. Figure 1 is a structural diagram of the nutrition infusion system 1 provided in some embodiments of the present application, and Figure 2 is a structural diagram of the nutrition infusion system 1 shown in Figure 1 in another state.

In some embodiments, the nutrition infusion system 1 may include a nutrition infusion tube 10 and a nutrition infusion device 20, and the nutrition infusion tube 10 may be detachably mounted on the nutrition infusion device 20. In clinical practice, the nutrition infusion system 1 is generally used to deliver water, nutrient solution, and homemade rice milk of a certain concentration to patients to provide nutrition to the patients. The nutrition infusion device 20 may provide a driving force for the fluid in the pipeline of the nutrition infusion tube 10 mounted thereon, so as to push the fluid in the pipeline of the nutrition infusion tube 10 forward, thereby delivering the nutrient solution, cleaning solution, and other fluids in the pipeline of the nutrition infusion tube 10 to the patient.

Please refer to FIG. 3 and FIG. 4 , FIG. 3 is a schematic diagram of the structure of the nutrition infusion tube 10 shown in FIG. 2 in some embodiments, and FIG. 4 is a schematic diagram of the structure of the nutrition infusion tube 10 shown in FIG. 3 from another perspective.

In some embodiments, the nutrition infusion tube 10 may include a peristaltic tube 11, an input tube connector 12, an output tube connector 13, a delivery tube 14, and a support plate 15. The input tube connector 12 and the output tube connector 13 are both fixed to the support plate 15. One end of the input tube connector 12 is connected to the input end 111 of the peristaltic tube 11, and the other end is connected to at least one delivery tube 14. One end of the output tube connector 13 is connected to the output end 112 of the peristaltic tube 11, and the other end is connected to another delivery tube 14. By arranging the peristaltic tube 11, the input tube connector 12, the output tube connector 13, and the delivery tube 14 to be connected, the pipeline part in the nutrition infusion tube 10 can be assembled to form an integrated structure, which improves the modularity of the structure in the nutrition infusion tube 10 and helps to reduce the difficulty of moving and installing the nutrition infusion tube 10. In addition, by setting a support plate 15 to connect the input tube connector 12 and the output tube connector 13, the support plate 15 can be used to fix the relative position of the input tube connector 12 and the output tube connector 13, which is beneficial to maintain the shape of the nutrition infusion tube 10, and can also further improve the structural integration of the nutrition infusion tube 10, thereby reducing the difficulty of operating the mobile nutrition infusion tube 10.

Exemplarily, the peristaltic tube 11 can be made of materials such as silicone, and has the characteristics of high electrical heat resistance, insulation, reliability, bendability and flexibility. In the embodiment of the present application, the peristaltic tube 11 can be directly sleeved on the input tube connector 12 and/or the output tube connector 13 by using its elasticity, or it can also be connected to the input tube connector 12 and/or the output tube connector 13 by means of glue bonding, ultrasonic welding, etc. In other embodiments, the peristaltic tube 11 and the input tube connector 12 and/or the output tube connector 13 can also be an integrated structure, which is not limited in the present application. In some embodiments, the nutrient infusion tube 10 may not include the input tube connector 12 and/or the output tube connector 13, one end of the peristaltic tube 11 can be directly connected to a delivery tube 14, and the other end of the peristaltic tube 11 can be directly connected to another delivery tube 14, which is not limited in the present application.

Exemplarily, the number of delivery tubes 14 may be 2, 3 or more. The delivery tubes 14 serve as fluid delivery paths. The multiple delivery tubes 14 may include an output tube 141 and at least one input tube 142. The multiple input tubes 142 may be used to inject different fluids such as nutrient solution and cleaning solution into the peristaltic tube 11, and then deliver the fluid to the patient via the output tube 141. The delivery tube 14 may be made of a synthetic material (PVC) or thermoplastic polyurethane rubber (TPU) made of polyvinyl chloride and other components, and the present application does not limit this.

In some examples, the input tube connector 12 may be a valve mechanism such as a two-way valve with one inlet and one outlet or a three-way valve with two inlets and one outlet. By controlling the position of the valve core in the valve, the communication between the delivery tube 14 and the peristaltic tube 11 can be controlled. For example, one of the inlets and outlets between the delivery tube 14 and the peristaltic tube 11 can be connected, and for another example, the other inlet and outlet between the delivery tube 14 and the peristaltic tube 11 can be connected, or the channel between the delivery tube 14 and the peristaltic tube 11 is blocked, so as to realize the opening and closing and switching of the fluid passage in the nutrition infusion tube 10. The valve mechanism has high flexibility and high reliability, which helps to improve the reliability of the nutrition infusion tube 10 and the nutrition infusion system 1. Before the nutrition infusion tube 10 is installed in the nutrition infusion device 20, the pipeline in the nutrition infusion tube 10 can be in a blocked state. After the nutrition infusion tube 10 is installed in the nutrition infusion device 20, the valve core angle is rotated to control the three-way/two-way valve to connect the corresponding pipeline according to the setting to realize nutrient solution feeding. After feeding is stopped, the three-way/two-way valve core is rotated to reset to the blocking state to prevent the nutrition infusion tube 10 from uncontrolled free flow after being removed from the nutrition infusion device 20, thereby improving the reliability and safety of the nutrition infusion system 1. In other embodiments, the input tube connector 12 may also be other structures, which are not limited in this application.

Please refer to Figures 1, 2, 5 and 6 again. Figure 5 is a partial structural diagram of the nutrition infusion device 20 shown in Figure 2 in some embodiments, and Figure 6 is a structural diagram of the pump door 22 shown in Figure 2 from another perspective.

In some embodiments, the nutrition infusion device 20 may include a housing 21 and a pump door 22, and the pump door 22 may be rotatably connected to one side of the housing 21. Exemplarily, the housing 21 may be made of materials such as plastic and silicone to provide strength support for the nutrition infusion device 20. The pump door 22 may be hinged to the housing 21 via a door shaft. In some other embodiments, the pump door 22 may also be detachably connected to the pump body and covered on the housing 21 when needed, or the pump door 22 may also be slidably connected to the housing 21. The present application does not limit the connection method between the pump door 22 and the housing 21. In some embodiments, the nutrition infusion device 20 may also not include the pump door 22, and the present application does not limit this.

Exemplarily, the nutrition infusion device 20 may have an installation space 23, which may be considered to be formed by a portion of the outer surface of the shell 21 being recessed toward the inside of the shell 21. The installation space 23 may be used to accommodate other structural components in the nutrition infusion system 1 (such as the nutrition infusion tube 10, etc.). When the pump door 22 is opened relative to the shell 21, the structural components installed in the installation space 23 are exposed to facilitate the operator to install or replace the structural components in the installation space 23. When the pump door 22 is closed relative to the shell 21, the pump door 22 may cover the installation space 23 to protect the structural components installed in the installation space 23 and prevent external impurities such as water or dust from affecting the service life of the structural components in the installation space 23. As shown in FIG1 , the pump door 22 and the shell 21 may jointly form the outer contour of the nutrition infusion system 1. When the pump door 22 is closed relative to the shell 21, the overall shape of the nutrition infusion system 1 can be restored. The outer surface of the nutrition infusion system 1 may be considered to be approximately a plane, thereby ensuring the aesthetics of the product.

Exemplarily, please refer to FIG. 1 again. The nutrition infusion device 20 can be erected on a support base such as a desktop or a support frame. The nutrition infusion device 20 can have a bottom surface 201. The bottom surface 201 of the nutrition infusion device 20 can be used to contact a support base such as a desktop or a support frame. In some examples, the bottom surface 201 of the nutrition infusion device 20 can also be provided with a flexible support pad to avoid hard contact between the nutrition infusion device 20 and the support base, increase the friction between the nutrition infusion device 20 and the support base, ensure the stability of the nutrition infusion device 20, and also reduce the wear or scratching of the bottom surface 201 of the nutrition infusion device 20. The side where the bottom surface 201 of the nutrition infusion device 20 is located is defined as the bottom side of the nutrition infusion device 20, and the top side of the nutrition infusion device 20 is opposite to the bottom side.

It is understandable that, for the sake of convenience of description, in the embodiment of the present application, the nutrition infusion device 20 shown in FIG. 1 is defined to be in an upright state, and the nutrition infusion device 20 shown in FIG. 1 is defined to have an X-axis direction, a Y-axis direction, and a Z-axis direction. The X-axis direction can be parallel to the length direction of the nutrition infusion device 20, the Z-axis direction can be parallel to the height direction of the nutrition infusion device 20, and the Y-axis direction can be parallel to the width direction of the nutrition infusion device 20. Any two of the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other. In other embodiments, the nutrition infusion device 20 can also lie flat, hang, or be connected to a support base such as a desktop or a support frame in other postures. The coordinate system setting of the nutrition infusion device 20 can be flexibly set according to specific actual needs, and the present application does not limit this.

In some embodiments, the nutrition infusion device 20 may further include a driving assembly 24, and the driving assembly 24 may include a roller 241, and the roller 241 may be installed in the installation space 23 and rotatably connected to the housing 21. Exemplarily, the housing 21 may have a mounting surface 211, and the operator may operate the structural member located in the installation space 23 facing the mounting surface 211 of the nutrition infusion device 20, and the roller 241 may be exposed relative to the mounting surface 211 of the housing 21. In the embodiment of the present application, the roller 241 may be arranged close to the bottom side of the nutrition infusion device 20, and in other embodiments, the roller 241 may be arranged close to the top side of the nutrition infusion device 20, or the roller 241 may be located in the middle of the nutrition infusion device 20, and the present application does not limit this.

As shown in FIG. 2 , in the embodiment of the present application, the pipeline of the nutrition infusion tube 10 can be arranged around the outer periphery of the roller 241, and the roller 241 can generate a certain pressure on the pipeline of the nutrition infusion tube 10. For example, the peristaltic tube 11 can abut against at least part of the roller 241. When the roller 241 rotates, the peristaltic tube 11 is in a stretched state. Exemplarily, as shown in FIG. 5 , a plurality of rotors 241a can be provided on the circumference of the roller 241. For example, the number of rotors 241a can be four, and the four rotors 241a can be arranged at intervals along the circumference of the roller 241. The peristaltic tube 11 can abut against at least part of the rotors 241a on the roller 241. The peristaltic tube 11 between the two rotors 241a can be in a pillow shape and stretched. When the roller 241 rotates, the peristaltic tube 11 is alternately squeezed and released to transmit the fluid.

In some embodiments, the driving assembly 24 may further include a first motor (not shown in the figure), which may be connected to the roller 241 in a transmission manner, and the first motor may be installed in the inner cavity (not shown in the figure) of the housing 21. When the first motor works to drive the roller 241 to rotate, the roller 241 can generate a driving force for the fluid in the pipeline of the peristaltic tube 11, and drive the fluid in the pipeline of the peristaltic tube 11 to flow along the pipeline, so as to deliver the nutrients flowing into the peristaltic tube 11 to the patient; when the roller 241 stops rotating, the pipeline of the peristaltic tube 11 is subjected to a greater pressure from the roller 241, and the fluid passage in the pipeline of the peristaltic tube 11 is equivalent to being blocked, and the fluid in the pipeline of the peristaltic tube 11 stops flowing forward, and the nutrients are stopped from being delivered to the patient. In the embodiment of the present application, the first motor is used as a driving source to drive the roller 241 to rotate. In other embodiments, other driving sources may also be used to drive the roller 241 to move, and the present application does not limit this.

Please refer to FIG. 2 and FIG. 5 . In some embodiments, the nutrition infusion device 20 may further include a tube groove 25. The number of the tube grooves 25 may be two. The part of the pipeline connecting the peristaltic tube 11 with the input connector and the part of the pipeline connecting the peristaltic tube 11 with the output connector may be fixed in the two tube grooves 25, respectively. By providing the tube groove 25 in the nutrition infusion device 20, the tube groove 25 may limit the extension direction of the pipeline of the peristaltic tube 11, which helps to make the pipeline of the nutrition infusion tube 10 more smoothly wound around the outer periphery of the roller 241. In addition, by providing the tube groove 25 to fix the relative position of the nutrition infusion tube 10 and the nutrition infusion device 20, it is also possible to avoid problems such as the nutrition infusion tube 10 falling off when external factors such as the operator accidentally collides with the nutrition infusion system 1.

Exemplarily, an ultrasonic bubble sensor 251 may be embedded in the groove wall of the tube groove 25. When the peristaltic tube 11 is embedded in the tube groove 25, the ultrasonic bubble sensor 251 can emit and receive ultrasonic waves, and then determine whether there are bubbles based on the difference in reflection and propagation, so as to detect bubbles in the pipeline of the peristaltic tube 11, which is beneficial to improving the safety and reliability of the nutrition infusion system 1.

Exemplarily, other detection devices such as a pressure sensor 252 may be provided in the nutrition infusion device 20 to detect other parameters such as the blocking pressure of the peristaltic tube 11, so as to monitor the normal and smooth operation of the nutrition infusion system 1, so that the operator can timely understand and control the working state of the nutrition infusion system 1, and the present application does not limit this. In the embodiment of the present application, an ultrasonic bubble sensor 251 and a pressure sensor 252 may be provided in the two tube grooves 25, respectively. FIG. 5 only schematically expresses the positions of the ultrasonic bubble sensor 251 and the pressure sensor 252, which can be designed according to actual needs. Exemplarily, the tube groove 25 may be located on the top side of the roller 241 facing the nutrition infusion device 20, and the spacing between the ends of the two tube grooves 25 close to the roller 241 may be greater than the spacing between the ends of the two tube grooves 25 away from the roller 241, and the ends of the two tube grooves 25 close to the roller 241 may be approximately in an "eight" shape. By setting the shape of the tube groove 25, the good shaping effect of the tube groove 25 on the nutrition infusion tube 10 is utilized, which can help the nutrition infusion tube 10 maintain a "water drop"-like bending state, so that the peristaltic tube 11 can be more smoothly wound on the roller 241. In other embodiments, the relative position of the tube groove 25 and the roller 241 can also be flexibly set according to actual needs, and the tube groove 25 can also be in a straight line, a curve or other shapes, which is not limited in the present application, or, in some other embodiments, the tube groove 25 can be not set in the nutrition infusion device 20.

Please refer to FIG. 2 and FIG. 5 , in some embodiments, the nutrition infusion device 20 may further include a fixing component 26, which may be fixed to the mounting surface 211 of the housing 21 and located on the side of the tube groove 25 away from the roller 241. In other embodiments, the fixing component 26 may also be fixed to other positions of the housing 21, and the embodiment of the present application does not limit the position of the fixing component 26.

Exemplarily, the fixing assembly 26 may be provided with a through hole or the like, the support plate 15 of the nutrition infusion tube 10 may include a plate body 151 (as shown in FIG. 3 ) and a protrusion 152 (as shown in FIG. 3 ), the protrusion 152 may be fixed to the side of the plate body 151 facing the fixing assembly 26, and the protrusion 152 may be embedded in the fixing assembly 26 to fix the relative position of the support plate 15 and the fixing assembly 26, thereby limiting the relative position of the nutrition infusion tube 10 and the nutrition infusion device 20. Among them, the protrusion 152 and the plate body 151 may be an integrated structure, or an integrated structure formed by welding, gluing, etc. The protrusion 152 and/or the plate body 151 may be made of materials such as acrylonitrile-butadiene-styrene copolymer (ABS) resin, which has high strength and toughness. The present application does not specifically limit the materials of the protrusion 152 and the plate body 151. In other embodiments, the protrusion 152 may also be located at other positions of the plate body 151, or the protrusion 152 may not be included in the nutrition infusion tube 10. The support plate 15 of the nutrition infusion tube 10 may cooperate with the fixing component 26 through other structures to achieve positioning, which is not limited in the embodiments of the present application.

It is understandable that, in the process of the projection 152 being embedded in the fixing assembly 26, the projection 152 can be squeezed and deformed due to its certain elasticity. When the support plate 15 is installed in place, the projection 152 can be restored to its original state and snapped into the fixing assembly 26. Alternatively, the projection 152 can still be in a compressed state, and the deformation recovery force of the projection 152 can also be used to push against the fixing assembly 26 to improve the tightness of the connection between the fixing assembly 26 and the projection 152. In the following text, the position of the support plate 15 after the projection 152 is embedded in the fixing assembly 26 is also recorded as the preset position of the support plate 15. At this time, the peristaltic tube 11 is arranged around the outer periphery of the roller 241, and the input end 111 and the output end 112 of the peristaltic tube 11 are both connected to the support plate 15. When the protrusion 152 of the support plate 15 is embedded in the fixing component 26, it is beneficial for the peristaltic tube 11 to be straightened and the peristaltic tube 11 to maintain abutment with at least part of the roller 241, so as to ensure that the pipeline of the peristaltic tube 11 is affected by the force of the roller 241.

In some embodiments, the nutrition infusion device 20 may further include a locking member 27, and the support plate 15 may be provided with a locking hole 153, and the locking member 27 may be embedded in the locking hole 153 to achieve a limiting effect on the nutrition infusion tube 10. The locking member 27 may be slidably connected or rotatably connected to the mounting surface 211 of the housing 21, and by rotating or moving the locking member 27, the support plate 15 may be limited in other directions. It can be understood that, for example, in the embodiment of the present application, as shown in FIG. 2 , the locking hole 153 is provided with a first baffle and a second baffle arranged at intervals along the Z-axis direction. In the initial position, the locking member 27 can extend along the X-axis direction. At this time, the locking member 27 can be embedded in the space between the first baffle and the second baffle to prevent the support plate 15 from moving relative to the housing 21 in the Z-axis direction. By rotating the locking member 27 and changing the position of the locking member 27, the locking member 27 can also be extended along the Z-axis and abutted between the first baffle and the second baffle to prevent the support plate 15 from moving relative to the housing 21 in the Y-axis direction. The embodiment of the present application does not limit the connection method between the locking member 27 and the housing 21, the relative position of the locking member 27 and the locking hole 153, etc. In some other embodiments, the nutrition infusion system 1 may not include the locking member 27 and the locking hole 153, and the present application does not limit this.

In some embodiments, the driving assembly 24 may further include a second motor (not shown in the figure), which may be transmission-connected to the locking member 27, and the second motor may be installed in the inner cavity of the housing 21. By controlling the second motor to work to drive the locking member 27 to move, the automation level of the nutrition infusion system 1 can be improved, which is helpful to reduce the difficulty of the operator to use the nutrition infusion system 1. In the embodiment of the present application, the second motor is used as a driving source to drive the locking member 27 to move. In other embodiments, other driving sources may also be used to drive the locking member 27 to move, and the present application does not limit this.

In some embodiments, the nutrition infusion device 20 may also be provided with a switching member 28, and the valve structure of the nutrition infusion tube 10 may be provided with a reversing groove 121. The switching member 28 may be embedded in the reversing groove 121 of the valve structure to drive the valve core of the valve structure to rotate, thereby controlling the switching of the valve core between different positions to achieve the opening and closing and switching of the fluid passage in the nutrition infusion tube 10.

In some embodiments, the driving assembly 24 may further include a third motor (not shown in the figures), which may be transmission-connected to the switching member 28, and the third motor may be installed in the inner cavity of the housing 21. By controlling the operation of the third motor to drive the switching member 28 to move, the degree of automation of the nutrition infusion system 1 can be improved, which is conducive to reducing the difficulty of operation of the operator using the nutrition infusion system 1. In some embodiments, a transmission mechanism such as a gear may be provided between the switching member and the locking member 27 to achieve driving the second motor or the third motor while driving the switching member 28 and the locking member 27 to move together, which is conducive to reducing the number of structural parts in the nutrition infusion device 20, so that the nutrition infusion device 20 may include the second motor but not the third motor, or the nutrition infusion device 20 may include the third motor but not the second motor, which is conducive to reducing the manufacturing cost of the nutrition infusion system 1.

Please refer to Figures 2 and 5 . On the installation surface 211 , structures such as bosses or grooves may be provided to divide the installation space 23 into several areas that are interconnected but have different depths, so that structural members of different sizes can be better arranged and installed in the installation space 23 . In some examples, the installation space 23 may include a first installation space 23a, a second installation space 23b and a third installation space 23c that are connected in sequence in the Z-axis direction. In the Y-axis direction, the depth of the first installation space 23a is greater than the depth of the second installation space 23b, and the depth of the third installation space 23c is greater than the depth of the second installation space 23b. By way of example, in an embodiment of the present application, the installation surface 211 can also be considered to be divided into a first installation surface 211a, a second installation surface 211b and a third installation surface 211c. The first installation surface 211a is located in the first installation space 23a, the second installation surface 211b is located in the second installation surface 211b, and the third installation surface 211c is located in the third installation surface 211c. The first installation surface 211a, the second installation surface 211b and the third installation surface 211c have the same orientation. That is, in the embodiment of the present application, the roller 241 can be arranged on the first installation surface 211a of the first installation space 23a, the tube groove 25 can be arranged on the second installation surface 211b of the second installation space 23b, and the fixing assembly 26, the locking member 27 and the switching member 28 can all be arranged on the third installation surface 211c of the third installation space 23c. As shown in FIG2 , when the nutrition infusion tube 10 is installed in place, the support plate 15 can be located in the third installation space 23c, and part of the peristaltic tube 11 is embedded in the tube groove 25 in the second installation space 23b, and the peristaltic tube 11 can be stretched straight and kept in contact with at least part of the roller 241. Among them, the first installation space 23a, the second installation space 23b and the third installation space 23c can also be divided into a plurality of sub-installation spaces with different depths, which is not limited in the present application. In other embodiments, the size relationship among the first installation space 23a, the second installation space 23b and the third installation space 23c may be different from that in the embodiment of the present application, and the installation space 23 may be divided into more or fewer areas, which is not limited in the present application.

In some embodiments, the nutrition infusion device 20 may further include a display control area 29 , which is mainly used to display relevant information of the nutrition infusion device 20 . The operator may operate in the display control area 29 to control the operating status of the nutrition infusion device 20 .

Exemplarily, a display screen 291 and a button 292 may be provided in the display control area 29. The display screen 291 may occupy most of the display control area 29. The button 292 may be provided on the periphery of the display screen 291. The display screen 291 is used to display information such as operating parameters and function options of the nutrition infusion device 20. The button 292 may include an on/off button, a return button, etc. The display control area 29 may be exposed outside the pump door 22 so that the operator can observe the display screen 291 and operate the nutrition infusion device 20. The button 292 may be used to control the working state of the structural parts in the nutrition infusion device 20 (for example, the switch of the structural parts such as the first motor connected to the roller 241 and the second motor connected to the locking member 27) to improve the automation of the nutrition infusion system 1 and reduce the difficulty of using the nutrition infusion system 1. In some embodiments, the display screen 291 may also be a touch screen, and the button 292 may not be provided in the display control area 29, which is not limited in the present application.

It can be understood that the shapes, sizes, etc. of the nutrition infusion system 1, nutrition infusion device 20 and nutrition infusion tube 10 shown in Figures 1 to 5 are only schematic representations. In other embodiments, they can be adjusted as needed, and the present application does not limit this.

In the prior art, in the process of assembling the nutrition infusion tube 10 on the nutrition infusion device 20, the operator usually needs to use both hands to overcome the elastic force of the peristaltic tube 11 and pull the peristaltic tube 11 open before it can be tightly put on the roller 241; it is also necessary to manually press the pipeline of the peristaltic tube 11 into the tube groove 25 to a certain depth to detect the bubbles in the pipeline of the peristaltic tube 11 and the pipeline blockage pressure; finally, the pump door 22 is closed, the relevant parameters are set, and the nutrition infusion system 1 is started to feed the patient. The assembly process is cumbersome and requires the operator to work with both hands, which is inconvenient to operate.

Therefore, the embodiment of the present application provides an assembly method for a nutrition infusion tube 10 for a nutrition infusion device 20, and the assembly method can simplify the steps of installing the nutrition infusion tube 10 on the nutrition infusion device 20. In addition, as shown in FIG2 , the embodiment of the present application also provides a new nutrition infusion system 1, which has made some structural improvements compared to the existing nutrition infusion system 1, and can also help simplify the steps of installing the nutrition infusion tube 10 on the nutrition infusion device 20, and the nutrition infusion system 1 can be assembled using the assembly method provided in the embodiment of the present application. Of course, the assembly method provided in the embodiment of the present application can also be used to assemble nutrition infusion systems 1 with other implementation structures, and the nutrition infusion system 1 provided in the embodiment of the present application can also be assembled by other assembly methods, and the present application does not limit this.

Please refer to Figures 7 and 8, Figure 7 is a schematic diagram of an assembly method of a nutrition infusion tube 10 for a nutrition infusion device 20 provided in an embodiment of the present application, and Figure 8 is a schematic diagram of the assembly process of a nutrition infusion system 1 assembled by the assembly method shown in Figure 7. 8A in Figure 8 is a state where the peristaltic tube 11 is just sleeved on the outer periphery of the roller 241, and 8B in Figure 8 is a state where the support plate 15 has been fixed to the fixing assembly 26, and the peristaltic tube 11 is stretched straight and keeps in contact with at least part of the roller 241.

The assembly method of the present application may generally include the following steps:

S1, sleeve the peristaltic tube 11 on the outer circumference of the roller 241;

The maximum spacing L1 of the peristaltic tube 11 in the first direction is greater than or equal to the maximum spacing L2 between any two points on the roller 241. It can be understood that the maximum spacing L1 of the peristaltic tube 11 in the first direction refers to the maximum spacing L1 of the peristaltic tube 11 in the first direction (as shown in FIG. 4 ) before the nutrition infusion tube 10 is sleeved on the roller 241 (at this time, the peristaltic tube 11 is considered to be in a normal state and the peristaltic tube 11 is not deformed by other external forces). By setting the maximum spacing L1 between the peristaltic tube 11 in normal state to be greater than or equal to the maximum spacing L2 between any two points on the roller 241 (as shown in FIG. 2 ), the peristaltic tube 11 can be easily sleeved on the roller 241, which simplifies the process in the prior art where the user needs to overcome the elastic force of the peristaltic tube 11 to stretch it open before sleeved on the roller 241. The user can sleeve the nutrient infusion tube 10 on the outer periphery of the roller 241 with one hand, thereby simplifying the process of assembling the nutrient infusion tube 10 on the nutrient infusion device 20 and facilitating use by the operator.

Among them, the first direction can be parallel to the mounting surface 211 of the housing 21, for example, the first direction can be parallel to the X-axis direction. In other embodiments, the first direction can also be parallel to the Y-axis direction or the Z-axis direction, or intersect with the X-axis direction and/or the Y-axis direction and/or the Z-axis direction, and the present application does not limit this. In the embodiment of the present application, the arrangement direction of the input pipe connector 12 and the output pipe connector 13 can be parallel to the X-axis direction, that is, the first direction can be parallel to the arrangement direction of the input pipe connector 12 and the output pipe connector 13. In other embodiments, the arrangement direction of the input pipe connector 12 and the output pipe connector 13 can also intersect with the X-axis direction, and the present application does not limit this.

In the embodiment of the present application, the roller 241 can be approximately cylindrical, and the maximum spacing L2 between any two points on the roller 241 can also be understood as the length of the diameter of the end face of the roller 241, that is, the maximum spacing L1 of the peristaltic tube 11 in the first direction can be greater than or equal to the diameter of the roller 241 in the first direction (maximum spacing L2), so that the peristaltic tube 11 in the non-deformable state can be sleeved on the outer periphery of the roller 241 with one hand. At this time, the plane where the peristaltic tube 11 is located can be considered to be parallel to the end face of the roller 241, and the peristaltic tube 11 corresponds to the roller 241. The line connecting the two points with the maximum spacing on the roller 241 can be parallel to the first direction (that is, the line connecting the two points with the maximum spacing on the roller 241 can be parallel to the X-axis direction). Among them, the non-deformable state refers to the operator not applying additional external force to the peristaltic tube 11. At this time, the peristaltic tube 11 can be in a completely non-deformable state, or there may be slight deformation due to the support of other structures inside the nutrition infusion tube 10.

In an embodiment of the present application, the diameter of the roller can be 33 mm. For example, the maximum spacing L1 of the peristaltic tube 11 in the first direction under normal conditions can be greater than or equal to 33 mm. In other embodiments, the maximum spacing L2 between any two points of the roller can also be other values such as 30 mm, 32 mm, 35 mm, 38 mm, etc. The maximum spacing L1 of the peristaltic tube 11 in the first direction under normal conditions can be set as needed.

It is understandable that there may be an angle between the direction of the line connecting any two points on the roller 241 and the first direction. In the embodiment of the present application, that is, there may be an angle between the line connecting the two points with the maximum spacing on the roller 241 and the X-axis direction. For example, the surface cross-section of the roller 241 may also be an ellipse, a square, a triangle or other shapes. The maximum spacing between any two points on the roller 241 may be the length of the long axis of the roller 241 or the length of the diagonal of the roller 241. In the process of sleeve-mounting the peristaltic tube 11 on the periphery of the roller 241, the peristaltic tube 11 in a non-deformed state may also be brought into contact with part of the periphery of the roller 241. The contact point between the roller 241 and the peristaltic tube 11 is used as the fulcrum. After the peristaltic tube 11 is slightly deformed by moving the support plate 15, another part of the peristaltic tube 11 is brought into contact with another part of the periphery of the roller 241. Among them, the force of moving the support plate 15 to cause slight deformation of the peristaltic tube 11 is much smaller than the maximum force that the operator can provide with one hand. At this time, moving the support plate 15 can be understood as rotating or translating the support plate 15 at any angle to adjust the support plate 15 to a state facing the mounting surface 211, so that one side of the support plate 15 in the Z-axis direction can be parallel to the X-axis direction, or the arrangement direction of the two sides of the support plate 15 in the X-axis direction can be parallel to the X-axis direction.

Please refer to FIG. 4 and FIG. 8 . In some embodiments, the support plate 15 may further include a support member 154. The support member 154 may be disposed on the side of the plate body 151 facing the roller 241. The support member 154 may abut against the peristaltic tube 11 to prevent the peristaltic tube 11 from approaching each other, so that the maximum spacing L1 of the peristaltic tube 11 in the first direction (i.e., the X-axis direction) under normal conditions can be greater than or equal to the maximum spacing L2 between any two points of the roller 241. For example, the number of the support members 154 may be two, and the two support members 154 may abut against a portion of the input end 111 of the peristaltic tube 11 and abut against a portion of the output end 112 of the peristaltic tube 11, respectively, to prevent the output end 112 of the peristaltic tube 11 and the input end 111 of the peristaltic tube 11 from approaching each other in the first direction, so that the maximum spacing L1 of the peristaltic tube 11 in the first direction under normal conditions can be greater than or equal to the maximum spacing L2 between any two points of the roller 241. The input end 111 of the peristaltic tube 11 is a region or section with a certain length, which may include the portion where the peristaltic tube 11 is connected to the input tube connector 12, and may also include the pipeline of the peristaltic tube 11 near the input tube connector 12. Similarly, the output end 112 of the peristaltic tube 11 is also a region or section with a certain length, which may include the portion where the peristaltic tube 11 is connected to the output tube connector 13, and may also include the pipeline of the peristaltic tube 11 near the output tube connector 13.

Please refer to FIG. 9 , which is a schematic structural diagram of another nutrition infusion tube 10 provided in an embodiment of the present application.

In some embodiments, the nutrition infusion tube 10 may not include the support member 154, and the input tube connector 12 may include a first portion 122 and a second portion 123, wherein the first portion 122 is connected to a delivery tube 14, the second portion 123 is connected to the input end 111 of the peristaltic tube 11, and the second portion 123 extends relative to the first portion 122 toward a side away from the output tube connector 13; and/or, the output tube connector 13 may include a third portion 131 and a fourth portion 132, wherein the fourth portion 132 is connected to the output end 112 of the peristaltic tube 11, and the fourth portion 132 extends relative to the third portion 131 toward a side away from the input tube connector 12. By changing the shape of the input tube connector 12 and/or the input tube connector 12, it is also possible to prevent the output end 112 of the peristaltic tube 11 and the input end 111 of the peristaltic tube 11 from approaching each other in the first direction, so that the maximum spacing L1 of the peristaltic tube 11 in the first direction under normal conditions can be greater than or equal to the maximum spacing L2 between any two points of the roller 241 (as shown in FIG. 2).

In other embodiments, the maximum spacing L1 of the peristaltic tube 11 under normal conditions can be made larger than the maximum spacing L2 between any two points of the roller 241 by changing the shape of the groove or space on the support plate 15 for installing the input tube connector 12 and/or the output tube connector 13, and the present application does not impose any limitation on this.

S2, applying an external force to make the support plate 15 move in a direction perpendicular to the first direction to reach a preset position;

In some embodiments, one of the nutrition infusion device 20 and the support plate 15 includes a guide rail, and the other includes a guide groove; in the step of applying an external force to make the support plate 15 move in a direction away from the roller 241 to reach the preset position, the support plate 15 can be moved in a direction perpendicular to the first direction and along the matching track of the guide rail and the guide groove to reach the preset position by applying an external force. Through the matching of the guide rail and the guide groove, the moving track of the support plate 15 can be limited, thereby improving the accuracy of the installation position of the support plate 15.

For example, please refer to FIG. 4 and FIG. 5 in combination. In the embodiment of the present application, the nutrition infusion device 20 may include a guide rail 30, and the support plate 15 may include a guide groove 31. When an external force is applied to move the support plate 15 in a direction away from the roller 241, the guide rail 30 can be embedded in the guide groove 31, and the support plate 15 can move along the extension path of the guide rail 30. In other embodiments, the nutrition infusion device 20 may include a guide groove 31, and the support plate 15 may include a guide rail 30. When an external force is applied to move the support plate 15 in a direction away from the roller 241, the guide rail 30 can be embedded in the guide groove 31, and the support plate 15 can move along the extension path of the guide groove 31.

Exemplarily, the moving direction of the support plate 15 may include a second direction and a third direction, and any two of the first direction, the second direction and the third direction are perpendicular to each other; the guide rail 30 may include a first guide rail 301, a second guide rail 302 and a third guide rail 303, the first guide rail 301 is closer to the roller 241 than the second guide rail 302 and the third guide rail 303, the third guide rail 303 is connected between the first guide rail 301 and the second guide rail 302, the first guide rail 301 and the roller 241 are both installed on the mounting surface 211, the extension directions of the first guide rail 301 and the second guide rail 302 are parallel to the second direction and are staggered, and the first direction and the second direction are parallel to the mounting surface 211, the extension direction of the third guide rail 303 is parallel to the third direction, and the third direction is perpendicular to the mounting surface 211. In an embodiment of the present application, the first direction is parallel to the X-axis, the second direction may be parallel to the Z-axis, and the third direction may be parallel to the Y-axis. In other embodiments, the coordinates of the first direction, the second direction and/or the third direction may also be designed according to actual needs, and the present application does not limit this.

In some examples, the first guide rail 301 can be installed on the second mounting surface 211b in the second mounting space 23b, the extension direction of the first guide rail 301 can be parallel to the Z-axis direction, the second guide rail 302 can be installed on the third mounting surface 211c in the third mounting space 23c, the extension direction of the second guide rail 302 can be parallel to the Z-axis direction, the extension direction of the third guide rail 303 can be parallel to the Y-axis direction, and the third guide rail 303 can be perpendicular to the second mounting surface 211b and the third mounting surface 211c; in the third direction, that is, in the Y-axis direction, the first guide rail 301 protrudes relative to the second guide rail 302, and the first guide rail 301 and the second guide rail 302 are stepped. After the nutrition infusion tube 10 is installed in the nutrition infusion device 20, an external force is applied to make the support plate 15 move in a direction perpendicular to the first direction. When the support plate 15 is located in the third mounting space 23c, it is considered that the support plate 15 has reached the preset position. In the embodiment of the present application, by setting the first guide rail 301, the third guide rail 303 and the second guide rail 302 which are arranged continuously, the guide rail 30 can support and limit the movement of the support plate 15 during the movement of the support plate 15, so as to avoid the support plate 15 from being suspended during the movement. In some other embodiments, the first guide rail 301 and the second guide rail 302 are connected in a straight line. In other words, in some other embodiments, the guide rail 30 may not include the third guide rail 303, and the present application does not limit this. In addition, when the nutrition infusion device 20 includes a guide groove and the support plate 15 is provided with a guide rail, the guide rail may also be formed by connecting multiple sections of rails of different sizes or a section of a straight line, and can be set according to actual needs, and the present application does not limit this.

Specifically, in the process of applying an external force along the guide rail 30 to make the support plate 15 move in a direction perpendicular to the first direction to reach the preset position, the following steps may also be included:

S21, applying external force to make the support plate 15 move along the first guide rail 301 in a direction away from the roller 241. When the support plate 15 is separated from the first guide rail 301, it is considered that the process is completed. At this time, the support plate 15 moves along the second direction (that is, the Z-axis direction) relative to the roller 241, and the support plate 15 drives the peristaltic tube 11 to move, so that the peristaltic tube 11 around the roller 241 is gradually stretched and elongated;

S22, applying external force to make the support plate 15 move along the third guide rail 303, and the second guide rail 302 can extend into the guide groove 31 of the support plate 15, then the process is considered to be completed. In the embodiment of the present application, after applying external force to make the support plate 15 move along the third guide rail 303, the support plate 15 can be considered to have reached the preset position. During this process, the support plate 15 can drive the peristaltic tube 11 to move toward the mounting surface 211, which is conducive to reducing the risk of the peristaltic tube 11 "flying out" from the periphery of the roller 241 and separating from the roller 241.

In other embodiments, after applying external force to cause the support plate 15 to move along the third guide rail 303, a process of applying external force to cause the support plate 15 to move along the second guide rail 302 may also be included. After applying external force to cause the support plate 15 to move a certain distance along the second guide rail 302, the support plate 15 reaches a preset position. This application does not limit this.

In some embodiments, as shown in FIG8 , the support plate 15 may have a top surface 151a and a bottom surface 151b (as shown in FIG4 ), the top surface 151a of the support plate 15 and the bottom surface 151b of the support plate 15 are located on opposite sides of the support plate 15 in the Y-axis direction, and the bottom surface 151b of the support plate 15 is closer to the mounting surface 211 than the top surface 151a of the support plate 15; the top surface 151a of the support plate 15 is provided with a slope 151c, and the angle between the slope 151c and the bottom surface 151b of the support plate 15 is an acute angle. In the embodiment of the present application, the slope 151c can also be considered to extend upward from the side of the support plate 15 close to the roller 241 to the side of the support plate 15 away from the roller 241.

Among them, applying external force to make the support plate 15 move in a direction away from the roller 241 to reach the preset position may include: using the slope 151c as a point of force, applying external force to make the support plate 15 move in a direction away from the roller 241 to reach the preset position. By setting the slope 151c and using it as a point of force, the force applied by the operator on the slope 151c can be decomposed into a force component parallel to the mounting surface 211 of the nutrition infusion device 20 to push/pull the support plate 15 to lengthen the peristaltic tube 11, and a force component perpendicular to the nutrition infusion device 20 to make the support plate 15 close to the nutrition infusion device 20, so that the support plate 15 always sticks to the mounting surface 211 of the nutrition infusion device 20, thereby avoiding the problem in the prior art that the force component in the direction of the force easily causes the support plate 15 to separate from the nutrition infusion device 20 when the operator needs to hold the two ends of the support plate 15 by hand to move the support plate 15, thereby improving the reliability of the installation process.

S3, fix the support plate 15 and the fixing assembly 26, so that the peristaltic tube 11 is stretched and kept in contact with at least a portion of the roller 241. The peristaltic tube 11 is in a stretched state, which can be understood as a state between when the peristaltic tube 11 is just stretched, when the tension is about to be generated but not yet generated, and when the peristaltic tube 11 is stretched and about to break.

Among them, when the support plate 15 is fixed to the fixing assembly 26 so that the peristaltic tube 11 is stretched straight and maintained in contact with at least part of the roller 241, the two ends of the peristaltic tube 11 are symmetrically distributed relative to the roller 241, that is, in the embodiment of the present application, the direction of the symmetry axis of the two ends of the peristaltic tube 11 can be parallel to the Z-axis direction.

In the embodiment of the present application, the protrusion 152 has a certain elastic deformation ability. During the installation process, an external force is applied so that the protrusion 152 on the support plate 15 is squeezed into the fixing assembly 26, and the protrusion 152 is clamped on the fixing assembly 26 to fix the protrusion 152 of the support plate 15 to the fixing assembly 26, so that the peristaltic tube 11 is straightened and kept in contact with at least part of the roller 241. In addition, during the disassembly process, the protrusion 152 can be pushed in the opposite direction to easily separate the protrusion 152 from the fixing assembly 26.

In the embodiment of the present application, the protrusion 152 is arranged on the side of the support plate 15 away from the roller 241. In the aforementioned step S22, when the external force is applied to make the support plate 15 move along the third guide rail 303, the protrusion 152 can be squeezed into the fixing assembly 26. When the support plate 15 is located at the preset position, the protrusion 152 can also be embedded in the fixing assembly 26, the locking member 27 is embedded in the locking hole 153, the switching member 28 is embedded in the reversing groove 121, and the locking member 27 is embedded in the locking hole 153. In other words, in the process of moving the support plate 15 to the preset position, the process of fixing the support plate 15 and the fixing assembly 26 is also realized at the same time, which simplifies the operation steps, facilitates the use of the operator, and is conducive to realizing a faster and simpler assembly process of the nutrition infusion system 1.

In other embodiments, after applying external force to cause the support plate 15 to move along the third guide rail 303, the protrusion 152 may not be completely embedded in the fixing assembly 26. In this case, external force may continue to be applied to cause the support plate 15 to move a certain distance along the second guide rail 302 so that the protrusion 152 is completely embedded in the fixing assembly 26 and the support plate 15 reaches a preset position. This application does not limit this.

In some embodiments, the pump door 22 is provided with a pipe pressing block 221, and the assembly method may further include:

S4, close the pump door 22, and the tube pressing block 221 pushes the peristaltic tube 11 into the corresponding tube groove 25. By arranging the tube pressing block 221 on the pump door 22, the peristaltic tube 11 can be pressed into the tube groove 25 while the pump door 22 is closed, which is convenient for the operator to use, and eliminates the additional step of the operator manually pressing the peristaltic tube 11 into the tube groove 25 in the prior art, which is conducive to a faster and simpler assembly process of the nutrition infusion system 1. Exemplarily, there are two tube pressing blocks 221, and the two tube pressing blocks 221 are arranged at intervals on the pump door 22. When the pump door 22 is closed, the two tube pressing blocks 221 can respectively press part of the peristaltic tube 11 into the tube groove 25.

In some embodiments, after step S3, fixing the support plate 15 and the fixing assembly 26 so that the peristaltic tube 11 is stretched straight and maintained in contact with at least a portion of the roller 241, or after step S4, closing the pump door 22 and the tube pressing block 221 pushes the peristaltic tube 11 into the corresponding tube groove 25, the assembly method may further include: the start of the second motor connected to the locking member 27 in the nutrition infusion device 20 can be controlled by the button 292 to further fix the relative position of the support plate 15 and the nutrition infusion device 20, thereby improving the assembly reliability of the nutrition infusion system 1.

The above are only some embodiments and implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (12)

1. A method of assembling a nutrition infusion tube for a nutrition infusion set, the nutrition infusion set comprising a drive assembly and a securing assembly, the drive assembly comprising a roller; the nutrition infusion tube comprises a peristaltic tube, an input tube connector, an output tube connector, a conveying tube and a supporting plate, wherein the input tube connector and the output tube connector are both fixed on the supporting plate, one end of the input tube connector is connected with the input end of the peristaltic tube, the other end of the input tube connector is connected with at least one conveying tube, one end of the output tube connector is connected with the output end of the peristaltic tube, and the other end of the output tube connector is connected with the other conveying tube, and the maximum distance between the peristaltic tube in the first direction is larger than or equal to the maximum distance between any two points on the roller; the assembly method comprises the following steps:

sleeving the peristaltic tube on the periphery of the roller;

applying an external force to enable the supporting plate to move in a direction perpendicular to the first direction to reach a preset position;

and fixing the supporting plate and the fixing assembly so that the peristaltic tube is kept in abutting connection with at least part of the roller in a straight manner.

2. The method of assembling of claim 1, wherein said sleeving said peristaltic tube over the periphery of said roller comprises:

sleeving the peristaltic tube in a deformation-free state on the periphery of the roller; or alternatively

And (3) contacting the peristaltic tube in a deformation-free state with part of the periphery of the roller, taking the contact point of the roller and the peristaltic tube as an acting point, slightly deforming the peristaltic tube by moving the supporting plate, and then contacting the other part of the peristaltic tube with the other part of the periphery of the roller.

3. The method of assembly of claim 1, wherein one of the nutrient infusion device and the support plate includes a rail and the other includes a channel; the applied external force enables the supporting plate to move towards a direction far away from the roller to reach a preset position, and the method comprises the following steps:

and applying external force to enable the supporting plate to move in a direction perpendicular to the first direction and move along the matching track of the guide rail and the guide groove to reach a preset position.

4. The method of assembling of claim 1, wherein said securing said support plate to said securing assembly to hold said peristaltic tube in straight abutment with at least a portion of said roller comprises:

The support plate is fixed with the fixing component, so that the peristaltic tube is kept in abutting contact with at least part of the roller in a straight mode, and two ends of the peristaltic tube are symmetrically distributed relative to the roller.

5. The method of assembly of claim 1, wherein the nutrient infusion device includes a housing to which the securing assembly is secured, the roller being rotatably coupled relative to the housing, the housing having a mounting face to which the support plate is mounted, the support plate having a top surface and a bottom surface, the top surface being on opposite sides of the support plate from the bottom surface, the bottom surface being closer to the mounting face than the top surface; the top surface is provided with a slope, and the included angle between the slope and the bottom surface is an acute angle;

the applied external force enables the supporting plate to move towards a direction far away from the roller to reach a preset position, and the method comprises the following steps: and taking the slope as an acting point, and applying external force to enable the supporting plate to move towards a direction away from the roller to reach a preset position.

6. The assembly method according to claim 1, wherein the nutrient infusion device comprises a pump door provided with a tube pressing block, and two tube slots are respectively arranged between the roller and the fixed component; the assembly method further comprises the steps of:

and closing the pump door, and pushing the peristaltic tube into the corresponding tube groove by the tube pressing block.

7. The method of assembling of claim 1, wherein the support plate has a tab thereon, the securing the support plate to the securing assembly to hold the peristaltic tube in tension against at least a portion of the roller, comprising:

And applying external force to enable the protruding blocks on the supporting plate to be extruded into the fixing assembly, and enabling the protruding blocks to be clamped with the fixing assembly so as to fix the protruding blocks of the supporting plate with the fixing assembly, so that the peristaltic tube is kept in abutting connection with at least part of the roller in a straight manner.

8. A nutrition infusion system assembled by the assembly method of claim 1, wherein the nutrition infusion system comprises a nutrition infusion device and a nutrition infusion tube, the nutrition infusion tube being detachably mounted on the nutrition infusion device;

the nutrient infusion device includes a drive assembly including a roller;

The nutrition infusion tube comprises a peristaltic tube, an input tube connector, an output tube connector, a conveying tube and a supporting plate, wherein the input tube connector and the output tube connector are both fixed on the supporting plate, one end of the input tube connector is connected with the input end of the peristaltic tube, the other end of the input tube connector is connected with at least one conveying tube, one end of the output tube connector is connected with the output end of the peristaltic tube, and the other end of the output tube connector is connected with the other conveying tube;

the maximum distance of the peristaltic tubes in the first direction is larger than or equal to the maximum distance of any two points on the roller, and the first direction is perpendicular to the moving direction of the supporting plate.

9. The nutritional infusion system of claim 8, wherein the nutritional infusion device includes a rail, the support plate including a channel, the rail cooperating with the channel to define a direction of movement of the support plate.

10. The nutritional infusion system of claim 9, wherein the rail comprises a first rail and a second rail, the first rail being disposed closer to the roller than the second rail;

the first guide rail and the second guide rail extend in parallel along a second direction and are staggered, and the second direction is perpendicular to the first direction;

the first guide rail and the second guide rail are in a ladder shape.

11. The system of claim 8, wherein the device comprises a housing, the support plate having a locking aperture, the device having a locking member, the locking member being embedded in the locking aperture, the locking member being rotatably or slidably coupled to the housing to define the relative position of the support plate and the device;

And/or, the nutrition infusion device further comprises a fixing component, the fixing component is fixed on the shell, the supporting plate comprises a plate body and a protruding block, the input pipe connector and the output pipe connector are both fixed on the plate body, the protruding block is fixed on one side of the plate body, and after the nutrition infusion tube is installed on the nutrition infusion device, the protruding block is embedded into the fixing component.

12. The nutrition infusion tube assembly method for the nutrition infusion device is characterized in that the nutrition infusion device comprises a shell, a driving assembly and a fixing assembly, the driving assembly comprises a roller, the shell is provided with a mounting surface, the roller is rotationally connected with the shell, the nutrition infusion tube comprises a peristaltic tube, an input tube connector, an output tube connector, a conveying tube and a supporting plate, the input tube connector and the output tube connector are both fixed on the supporting plate, one end of the input tube connector is connected with the input end of the peristaltic tube, the other end of the input tube connector is connected with at least one conveying tube, one end of the output tube connector is connected with the output end of the peristaltic tube, and the other end of the output tube connector is connected with the other conveying tube, wherein the maximum distance between the peristaltic tubes in a first direction is larger than or equal to the maximum distance between any two points on the roller;

the nutrition infusion device comprises a guide rail, and the nutrition infusion tube comprises a guide groove;

The support plate is mounted on the mounting surface, the support plate is provided with a top surface and a bottom surface, the top surface and the bottom surface are positioned on two opposite sides of the support plate, and the bottom surface is closer to the mounting surface relative to the top surface; the top surface is provided with a slope, and the included angle between the slope and the bottom surface is an acute angle;

The nutrition infusion device comprises a pump door, a tube pressing block is arranged on the pump door, and two tube grooves are respectively arranged between the idler wheels and the fixing component;

the assembly method comprises the following steps:

sleeving the peristaltic tube on the periphery of the roller;

taking the slope as an acting point, applying external force to enable the supporting plate to move in a direction perpendicular to the first direction towards a direction away from the roller, and moving along a matching track of the guide rail and the guide groove to reach a preset position, wherein the first direction is parallel to the mounting surface;

The lugs on the support plate are extruded into the fixing assembly to fix the support plate and the fixing assembly, so that the peristaltic tube is kept in abutting contact with at least part of the roller in a straight manner;

and closing the pump door, and pushing the peristaltic tube into the corresponding tube groove by the tube pressing block.