CN109718426B - Infusion control system and infusion system - Google Patents
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- CN109718426B CN109718426B CN201910142004.6A CN201910142004A CN109718426B CN 109718426 B CN109718426 B CN 109718426B CN 201910142004 A CN201910142004 A CN 201910142004A CN 109718426 B CN109718426 B CN 109718426B
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Abstract
本发明涉及医疗设备技术领域，提出一种输液控制系统、输液系统，该输液控制系统用于控制输液装置的输液速度，输液装置包括用于输液的输液软管，该输液控制装置包括：套接件、调节件、动力装置。套接件套接于输液软管，套接件的侧壁上设置有螺纹孔；调节件包括螺纹柱，螺纹柱螺纹连接于螺纹孔；动力装置固定连接于套接件，用于受控于一控制信号向螺纹柱输出扭转力，以调节螺纹柱伸入套接件的深度。本公开提供的输液控制系统可以通过控制信号自动调节输液速度。
The invention relates to the technical field of medical equipment, and provides an infusion control system and an infusion system. The infusion control system is used to control the infusion speed of an infusion device. The infusion device includes an infusion hose for infusion. The infusion control device includes: a socket parts, adjustment parts, power units. The sleeve is sleeved on the infusion hose, and the side wall of the sleeve is provided with a threaded hole; the adjustment part includes a threaded column, and the threaded column is threadedly connected to the threaded hole; the power device is fixedly connected to the sleeve for controlled A control signal outputs torsional force to the threaded column to adjust the depth of the threaded column extending into the socket. The infusion control system provided by the present disclosure can automatically adjust the infusion rate through a control signal.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an infusion control system and an infusion system.
Background
At present, intravenous infusion is widely used in the medical field as an effective and rapid means for treating diseases. In the process of intravenous infusion, the intravenous infusion speed needs to be controlled according to the characteristics of the medicine and the condition of the receptor to be infused.
In the related art, an infusion device generally includes: the device comprises a vein needle, a needle head protective cap, a transfusion hose, a liquid medicine filter, a flow rate regulator, a Murphy's dropper, a bottle stopper puncture outfit, an air filter and the like. The flow rate regulator is usually a roller type regulator, which is provided on the infusion hose, and the speed of the infusion can be regulated by manually rolling the roller.
In the related art, the control of the infusion speed of the infusion set is manually performed, however, the flow rate regulator is generally located on the infusion hose, and the manual control of the flow rate regulator is troublesome.
It is to be noted that the information invented in the above background section is only for enhancing the understanding of the background of the present invention, and therefore, may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide an infusion control device, an infusion control system and an infusion system. The infusion control device can be controlled by a control signal to automatically adjust the infusion speed, thereby avoiding the inconvenience caused by manually controlling the infusion speed.
Additional features and advantages of the invention will be set forth in the detailed description which follows, or may be learned by practice of the invention.
According to one aspect of the present invention, there is provided an infusion control device for controlling an infusion speed of an infusion device including an infusion hose for infusion of fluid, the infusion control device comprising: socket joint spare, regulating part and power device. The sleeve joint piece is sleeved on the infusion hose, and a threaded hole is formed in the side wall of the sleeve joint piece; the adjusting piece comprises a threaded column which is in threaded connection with the threaded hole; the power device is fixedly connected with the socket piece and used for outputting a torsional force to the threaded column under the control of a control signal so as to adjust the depth of the threaded column extending into the socket piece.
In an exemplary embodiment of the invention, two threaded holes are provided, and the two threaded holes are arranged on two sides of the socket piece in a penetrating manner; the number of the adjusting pieces is two, the threaded columns of the two adjusting pieces are respectively in threaded connection with the two threaded holes, and the rotating directions of the two threaded columns extending into the sleeving piece are opposite; the two power devices are used for respectively adjusting the depth of the two threaded columns extending into the socket piece.
According to one aspect of the present invention, there is provided an infusion control system comprising: monitoring devices, processing apparatus and above-mentioned infusion control device. The monitoring device is used for monitoring the physical sign information of the human body in real time; the processing device is used for generating a control signal according to the physical sign information; the infusion control device is used for controlling the infusion speed of the infusion device to the human body according to the control signal.
In an exemplary embodiment of the present invention, the physical sign information includes a body temperature parameter, a heart rate parameter, and facial image information, and the monitoring apparatus includes: body temperature monitoring devices, rhythm of the heart monitoring devices and expression monitoring devices. The body temperature monitoring device is used for monitoring the body temperature of the human body and generating the body temperature parameter; the heart rate monitoring device is used for monitoring the heart rate of the human body and generating the heart rate parameter; the expression monitoring device is used for monitoring the facial expression of the human body and generating the facial image information.
In one exemplary embodiment of the present invention, the processing apparatus includes: the device comprises a first processing unit and a second processing unit. The first processing unit is used for generating a first index according to the body temperature parameter, generating a second index according to the heart rate parameter and generating a third index according to the facial image information; the second processing unit is used for calculating the infusion speed index according to the first index, the second index and the third index in a weighting mode and generating the control signal according to the infusion speed index.
In an exemplary embodiment of the present invention, the infusion device further includes a murphy dropper connected to the infusion hose, the infusion control system further includes a flow monitoring device connected to the second processing unit for feeding back the infusion speed to the second processing unit, the flow monitoring device includes: infrared emitter, infrared receiver, counter and third processing unit. The infrared emitter is arranged on the first side of the Murphy's dropper and is used for emitting infrared rays; the infrared receiver is arranged on a second side of the Murphy's dropper, and the first side is opposite to the second side and used for receiving the infrared rays; the counter is connected with the infrared receiving device and is used for monitoring the times of blocking the infrared rays by the liquid drops; the third processing unit is used for calculating the transfusion speed according to the times of the infrared rays blocked by the liquid drops in unit time.
In an exemplary embodiment of the invention, the processing device further comprises a timer. The timer is used for monitoring the infusion time; the second processing unit is also used for calculating infusion amount according to the infusion time and the infusion speed, and calculating the residual infusion time by combining the total infusion amount and the current infusion speed.
In an exemplary embodiment of the present invention, a playing device is further included. The playing device is connected with the second processing unit and used for playing the residual infusion time and playing audio when the infusion speed corresponding to the control signal is smaller than a first preset value.
In an exemplary embodiment of the invention, the system further comprises an alarm device. And the alarm device is connected with the processing device and is used for sending alarm information when the infusion speed corresponding to the control signal is less than a second preset value.
According to one aspect of the invention, a fluid infusion system is provided, which comprises the fluid infusion control system and the fluid infusion device.
The invention provides an infusion control device, an infusion control system and an infusion system, wherein the infusion control device is used for controlling the infusion speed of an infusion device, the infusion device comprises an infusion hose for infusion, and the infusion control device comprises: a socket joint piece, an adjusting piece and a power device. The sleeve joint piece is sleeved on the infusion hose, and a threaded hole is formed in the side wall of the sleeve joint piece; the adjusting piece comprises a threaded column, and the threaded column is in threaded connection with the threaded hole; the power device is fixedly connected to the socket joint piece and used for outputting torsional force to the threaded column under the control of a control signal so as to adjust the depth of the threaded column extending into the socket joint piece. On one hand, the infusion control device provided by the disclosure can adjust the depth of the extrusion part extending into the socket piece through a control signal, so as to adjust the degree of the threaded column extruding the infusion hose, and further adjust the infusion speed; on the other hand, the infusion control device has simple structure and lower cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic illustration of an infusion control device in an exemplary embodiment of the disclosure;
FIG. 2 is a schematic diagram of an infusion control device in another exemplary embodiment of the disclosure;
FIG. 3 is a functional block diagram of an exemplary embodiment of an infusion control system of the present disclosure;
FIG. 4 is a functional block diagram of another exemplary embodiment of an infusion control system according to the present disclosure;
FIG. 5 is a schematic diagram of an exemplary embodiment of an infusion control system of the present disclosure;
FIG. 6 is a functional block diagram of another exemplary embodiment of an infusion control system according to the present disclosure;
FIG. 7 is a schematic block diagram of another exemplary embodiment of an infusion control system in accordance with the present disclosure;
FIG. 8 is a functional block diagram of another exemplary embodiment of an infusion control system in accordance with the present disclosure;
fig. 9 is a functional block diagram of another exemplary embodiment of an infusion control system in accordance with the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". Other relative terms, such as "high," "low," "top," "bottom," "left," "right," and the like are also intended to have similar meanings. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," and the like are used to denote the presence of one or more elements/components/parts; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
The present exemplary embodiment first provides an infusion control device, as shown in fig. 1, which is a schematic structural diagram of an infusion control device in an exemplary embodiment of the present disclosure, the infusion control device is used for controlling an infusion speed of an infusion device, the infusion device comprises an infusion hose 1 for infusion, and the infusion control device comprises: a socket 21, an adjusting piece and a power device 23. The sleeve 21 is sleeved on the infusion hose 1, and a threaded hole is formed in the side wall of the sleeve; the adjusting piece comprises a threaded column 22, and the threaded column 22 is used for being connected with the threaded hole in a threaded mode; the power device 23 is fixedly connected to the socket 21 and is used for outputting a torsional force to the threaded column 22 under the control of a control signal so as to adjust the depth of the threaded column 22 extending into the socket 21.
The present exemplary embodiment proposes an infusion control device for controlling an infusion speed of an infusion device including an infusion hose for infusion of fluid, the infusion control device comprising: a socket joint piece, an adjusting piece and a power device. The sleeve joint piece is sleeved on the infusion hose, and a threaded hole is formed in the side wall of the sleeve joint piece; the adjusting piece comprises a threaded column, and the threaded column is in threaded connection with the threaded hole; the power device is fixedly connected to the socket joint piece and used for outputting torsional force to the threaded column under the control of a control signal so as to adjust the depth of the threaded column extending into the socket joint piece. On one hand, the infusion control device provided by the disclosure can adjust the depth of the extrusion part extending into the socket piece through a control signal, so as to adjust the degree of the threaded column extruding the infusion hose, and further adjust the infusion speed; on the other hand, the infusion control device has simple structure and lower cost.
In the present exemplary embodiment, the power device may be a micro motor including a rotor and a stator. The rotor of the micro motor can be connected with the threaded column 22, the stator of the micro motor is fixedly connected to the sleeve-joint part 21, and the rotor of the micro motor can drive the threaded column 22 to rotate when rotating, so that the depth of the threaded column extending into the sleeve-joint part 21 is adjusted. The end of the threaded post 22 extending into the socket may further be connected with an extrusion portion matching the shape of the inner wall of the socket, and the extrusion portion may be completely attached to the inner wall of the socket when extruding the flexible hose, so as to realize the maximum extrusion of the flexible hose. The socket 21 may be composed of two detachable parts, so that the socket 21 can be detachably sleeved on the infusion hose.
In the above exemplary embodiment, when the power device 23 rotates the threaded stud 22, the power device outputs a reaction force to the socket 21, and the socket 21 may rotate under the reaction force, thereby causing an undesirable phenomenon that the infusion hose is wound along the socket 21. In the present exemplary embodiment, as shown in fig. 2, a schematic structural diagram of an infusion control device in another exemplary embodiment of the present disclosure is shown. The number of the threaded holes can be two, and the two threaded holes are arranged on two sides of the socket piece 21 in a penetrating manner; the number of the adjusting pieces 3 can be two, the threaded columns of the two adjusting pieces are respectively in threaded connection with the two threaded holes, and the rotating directions of the two threaded columns extending into the sleeve-joint piece are opposite; the number of the power devices 23 may be two, and the two power devices are used for adjusting the depth of the two threaded columns extending into the socket respectively. In the infusion control device provided by the exemplary embodiment, the two power devices can provide power for the threaded columns to extend into the sleeve 21 or power for the threaded columns to extend out of the sleeve 21, and because the two threaded columns extend into the sleeve 21 in opposite rotating directions, the reaction forces of the two power devices acting on the sleeve 21 are also opposite, so that the sleeve is prevented from rotating.
The present exemplary embodiment also provides an infusion control system, as shown in fig. 3, which is a functional block diagram of an exemplary embodiment of the infusion control system of the present disclosure, the infusion control system comprising: a monitoring device 3, a processing device 4 and the infusion control device 2. The monitoring device 3 is used for monitoring the physical sign information of the human body in real time; the processing device 4 is used for generating a control signal according to the physical sign information; the infusion control device 2 is used for controlling the infusion speed of the infusion device to the human body according to the control signal.
The infusion control system provided by the exemplary embodiment can monitor the physical sign information of the human body in real time, and automatically control the infusion speed to the human body according to the physical sign information of the human body.
In the present exemplary embodiment, as shown in fig. 4 and 5, fig. 4 is a functional block diagram of another exemplary embodiment of the infusion control system of the present disclosure, and fig. 5 is a schematic structural diagram of an exemplary embodiment of the infusion control system of the present disclosure. The physical sign information may include body temperature parameters, heart rate parameters, and facial image information, and the monitoring device 3 may include: a body temperature monitoring device 31, a heart rate monitoring device 32 and an expression monitoring device 33. The body temperature monitoring device 31 is used for monitoring the body temperature of the human body and generating the body temperature parameter; the heart rate monitoring device 32 is used for monitoring the heart rate of the human body and generating the heart rate parameter; the expression monitoring device 33 is used for monitoring the facial expression of the human body and generating the facial image information. The expression monitoring device 33 may be an image capturing device. It should be understood that in other exemplary embodiments, the vital sign signal may also include other vital sign information that may affect the infusion rate, and the corresponding monitoring device may also include other monitoring devices, for example, the vital sign information may also include blood pressure information, and the corresponding monitoring device may also include a blood pressure monitoring device.
In the present exemplary embodiment, as shown in fig. 4, the processing device 4 may include: a first processing unit 41 and a second processing unit 42. The first processing unit 41 is configured to generate a first index according to the body temperature parameter, generate a second index according to the heart rate parameter, and generate a third index according to the facial image information; the second processing unit is used for calculating the infusion speed index according to the first index, the second index and the third index in a weighting mode and generating the control signal according to the infusion speed index. The body temperature parameter and the first index have a preset mapping relation, the heart rate index and the second index have a preset mapping relation, and the facial expression information and the second index have a preset mapping relation. The mapping relationship can be preset according to the factors such as race, personal characteristics, environment and the like. When the infusion rate index is calculated by weighting according to the first index, the second index and the third index, the weighting coefficient of each index may be preset according to factors such as the race of a person and personal characteristics. The infusion speed index and the control signal have a preset mapping relation, and the corresponding control signal can be obtained according to the infusion speed index.
The present exemplary embodiment specifically discloses an operation method of the processing apparatus 4. As shown in tables 1, 2, 3 and 4, table 1 is a mapping relation table of body temperature parameters and a first index; table 2 is a mapping relationship table of the heart rate index and the second index; table 3 is a mapping relationship table of facial expression information and the second index; table 4 is a table of the mapping relationship between the infusion rate index and the control signal.
TABLE 1
TABLE 2
TABLE 3
TABLE 4
| Gear position | 1 st gear | 2- |
3 grade |
| Control signal | Fast speed | Medium and high grade | Slow down |
| Index of infusion speed | 0~2 | 2~3 | 3~5 |
The first processing unit may generate a first index from the body temperature parameter, a second index from the heart rate parameter, and a third index from the facial image information based on the mapping relationships in tables 1, 2, and 3.
The second processing unit may calculate the infusion rate index by weighting according to the first index, the second index, and the third index, and generate the control signal according to the infusion rate index based on the mapping relationship in table 4. In table 4, the control signal can be divided into three steps, i.e. fast, medium and slow.
It should be understood that in other exemplary embodiments, the various mappings described above may be in other forms, for example, the mappings described above may be continuous functional relationships. The control signals described above may also include further gear positions.
In the present exemplary embodiment, as shown in fig. 6 and 7, fig. 6 is a functional block diagram of another exemplary embodiment of an infusion control system according to the present disclosure; fig. 7 is a schematic block diagram of another exemplary embodiment of an infusion control system in accordance with the present disclosure. The infusion device may further include a Murphy's dropper 5 connected to the infusion hose, the infusion control system may further include a flow monitoring device 6, the flow monitoring device 6 is connected to the second processing unit 42 for feeding back the infusion speed to the second processing unit 42, the flow monitoring device 6 includes: an infrared emitter 61, an infrared receiver 62, a counter 63 and a third processing unit 64. The infrared emitter 61 is arranged on the first side of the Murphy's dropper and is used for emitting infrared rays; the infrared receiver 62 is disposed on a second side of the murphy's dropper, and the first side is opposite to the second side and is configured to receive the infrared rays; the counter 63 is connected with the infrared receiving device and is used for monitoring the times that the infrared rays are blocked by the liquid drops; the third processing unit 64 is used for calculating the transfusion speed according to the number of times of blocking the infrared rays by the liquid drops in unit time. The second processing unit 42 can precisely control the infusion speed according to the infusion speed fed back by the flow monitoring device 6.
In the present exemplary embodiment, as shown in fig. 8, a functional block diagram of another exemplary embodiment of an infusion control system of the present disclosure is shown. The processing means 4 may also comprise a timer 43. The timer 43 is used for monitoring the infusion time; the second processing unit 42 also calculates the infusion amount according to the infusion time and the infusion speed, and calculates the remaining infusion time by combining the total infusion amount and the current infusion speed.
In the present exemplary embodiment, as shown in fig. 9, a functional block diagram of another exemplary embodiment of an infusion control system of the present disclosure is shown. The infusion control system may also include a playback device 7. The playing device 7 is connected to the second processing unit 42, and is configured to play the remaining infusion time, and to play an audio when the infusion speed corresponding to the control signal is less than a first preset value. When the infusion speed corresponding to the control signal is smaller than the first preset value, the infusion state of the patient is poor, the audio frequency can be used for relieving the mood of the person to be infused, and the first preset value can be preset according to factors such as the human type and the personal characteristics. In the present exemplary embodiment, when the control signal is at two levels, the audio can be played by the playing means 7.
In the exemplary embodiment, the infusion control system may also include an alarm device 8, as shown in fig. 9. And the alarm device 8 is connected with the processing device and is used for sending alarm information when the infusion speed corresponding to the control signal is less than a second preset value. When the infusion speed corresponding to the control signal is less than the second preset value, the infusion state of the patient is serious and bad, and the alarm signal can be used for informing doctors and nurses to process the patient in time. In the exemplary embodiment, when the control signal is in the third gear, an alarm can be given through the alarm device.
The present exemplary embodiment also provides a fluid infusion system comprising the fluid infusion control system and the fluid infusion device described above.
The infusion system provided by the exemplary embodiment has the same technical features and working principles as the infusion control system, and the above contents have been described in detail and are not described again here.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.
Claims (3)
1. An infusion control system, comprising:
the monitoring device is used for monitoring the physical sign information of the human body in real time;
the processing device is used for generating a control signal according to the physical sign information;
the infusion control device is used for controlling the infusion speed of the infusion device to the human body according to the control signal;
wherein, sign information includes body temperature parameter, heart rate parameter and facial image information, monitoring devices includes:
the body temperature monitoring device is used for monitoring the body temperature of the human body and generating the body temperature parameter;
the heart rate monitoring device is used for monitoring the heart rate of the human body and generating the heart rate parameter;
the expression monitoring device is used for monitoring the facial expression of the human body and generating the facial image information, and the expression monitoring device is an image acquisition device;
the blood pressure monitoring device is used for monitoring the blood pressure of the human body and generating blood pressure information;
the processing device comprises:
the first processing unit is used for generating a first index according to the body temperature parameter, generating a second index according to the heart rate parameter and generating a third index according to the facial image information;
the second processing unit is used for calculating an infusion speed index in a weighted mode according to the first index, the second index and the third index, and generating the control signal according to the infusion speed index, wherein the infusion speed index and the control signal have a preset mapping relation;
wherein, infusion set is still including connecting in infusion hose's Murphy's dropper, infusion control system still includes flow monitoring device, flow monitoring device with the second processing unit is connected, be used for to second processing unit feedback infusion speed, flow monitoring device includes:
the infrared emitter is arranged on the first side of the Murphy's dropper and is used for emitting infrared rays;
the infrared receiver is arranged on a second side of the Murphy's dropper, and the first side is opposite to the second side and used for receiving the infrared rays;
a counter connected with the infrared receiver and used for monitoring the times of the infrared rays blocked by the liquid drops;
the third processing unit is used for calculating the transfusion speed according to the times that the infrared rays are blocked by the liquid drops in unit time;
the processing apparatus further comprises:
the timer is used for monitoring the infusion time; the second processing unit is also used for calculating infusion amount according to the infusion time and the infusion speed, and calculating the residual infusion time by combining the total infusion amount and the current infusion speed;
the playing device is connected with the second processing unit and used for playing the residual transfusion time and playing audio when the transfusion speed corresponding to the control signal is less than a first preset value;
and the alarm device is connected with the processing device and used for sending alarm information when the infusion speed corresponding to the control signal is less than a second preset value.
2. The infusion control system according to claim 1, for controlling an infusion rate of an infusion device, the infusion device comprising an infusion hose for infusion of fluid, the infusion control device comprising:
the sleeving piece is sleeved on the infusion hose, and a threaded hole is formed in the side wall of the sleeving piece;
the adjusting piece comprises a threaded column, and the threaded column is in threaded connection with the threaded hole;
the power device is fixedly connected with the socket piece and used for outputting a torsional force to the threaded column under the control of a control signal so as to adjust the depth of the threaded column extending into the socket piece;
the two threaded holes are arranged on two sides of the socket piece in a penetrating manner;
the number of the adjusting pieces is two, the threaded columns of the two adjusting pieces are respectively in threaded connection with the two threaded holes, and the rotating directions of the two threaded columns extending into the sleeving piece are opposite;
the two power devices are used for respectively adjusting the depth of the two threaded columns extending into the socket piece.
3. An infusion system comprising the infusion control system of claim 1 or 2 and an infusion device.
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| CN112999467A (en) * | 2021-04-14 | 2021-06-22 | 于琨 | Liquid flow rate adjusting device for nursing |
| CN113456040B (en) * | 2021-08-02 | 2022-02-11 | 曜立科技(北京)有限公司 | Postoperative patient supervision system for nerve intervention treatment |
| CN113559359B (en) * | 2021-09-06 | 2024-06-21 | 静宽医疗科技(上海)有限公司 | Infusion alarm with controllable flow rate |
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| DE19955368A1 (en) * | 1999-11-17 | 2001-05-23 | Lre Technology Partner Gmbh | Infusion delivery apparatus, comprises a container and holder, a drop chamber, a throttling valve, and a weight measurement unit |
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| WO2006057797A2 (en) * | 2004-11-23 | 2006-06-01 | Intel Corporation | Switch structures or the like based on a thermoresponsive polymer |
| CN2922921Y (en) * | 2006-07-14 | 2007-07-18 | 孔悦 | Transfusion monitoring and controlling device |
| CN201379854Y (en) * | 2009-05-05 | 2010-01-13 | 中国人民解放军南京军区南京总医院 | Infusion Droplet Velocity Meter |
| US9480791B2 (en) * | 2009-12-21 | 2016-11-01 | Bayer Healthcare Llc | Pumping devices, systems and methods for use with medical fluids including compensation for variations in pressure or flow rate |
| CN102218174A (en) * | 2011-06-02 | 2011-10-19 | 闫云涛 | Infusion set flow rate controller |
| CN203169731U (en) * | 2013-04-12 | 2013-09-04 | 王美霞 | Transfusion device |
| CN104784776A (en) * | 2015-05-19 | 2015-07-22 | 京东方科技集团股份有限公司 | Infusion system |
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| CN109718426A (en) | 2019-05-07 |
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