TWI869229B - Feeding device with back-feeding function - Google Patents

Abstract

The present invention provides a feeding device with a back-drawing function, comprising: a tube assembly made of elastic material and having a first opening and a second opening arranged opposite to each other; a cover body covering the first opening and provided with a finger pressure portion, a control hole and a blocking member; a liquid outlet member of a hollow structure and assembled at the second opening, the liquid outlet member having an upper liquid inlet portion and a lower liquid outlet portion formed integrally, and the upper liquid inlet portion having an arc-shaped inner wall surface concave from the outside to the inside, so that the width decreases toward the lower liquid outlet portion, the lower liquid outlet portion is a cross tube, and one end of the vertical tube section is connected to the narrowest end of the upper liquid inlet portion, and the other end has a liquid outlet for connecting to a nasogastric tube, and the inner diameters of the horizontal tube section and the vertical tube section are D1 and D0; the lower liquid outlet portion is arranged in the horizontal tube section. The switch assembly includes a first and second column and a plate, the plate is connected between the first and second columns and has a through hole, the minimum width of the first and second columns is D2 and D3 respectively, the thickness of the plate is D4, D0<D1, D2 and D3 are slightly smaller than D1, and D2=D3>D4; a stopper bead having a hollow part, a solid part and a protruding structure is arranged in the liquid outlet; accordingly, by adjusting the stopper, the switch assembly and the pressure adjustment of the finger pressure part, and the compression operation of the tube assembly, the two actions of back-drawing and feeding can be performed, and at the same time, after the feeding is completed, the stopper bead can be used to prevent air from entering the stomach, which has the advantages of eliminating the difficulty of back-drawing and feeding operations.

Description

Feeding device with reverse suction function

The present invention relates to the technical field of feeding care devices, in particular to a feeding device with a special structural design that has both feeding and back-feeding functions and is very easy to use with a back-feeding function.

Feeding is a medical procedure that provides nutrition to patients who cannot eat through normal means. The most common method is feeding through a nasogastric tube (NG tube). Feeding is usually suitable for the elderly, patients with difficulty swallowing, unconsciousness, digestive system surgery, or patients who need long-term supply of specific nutrition. A nasogastric tube is a soft, thin tube that passes through the patient's nose, throat, and directly into the stomach. After the patient is equipped with a nasogastric tube, feeding liquid can be given through the nasogastric tube.

Before each feeding, in order to understand the patient's digestive status, aspiration must be performed, which refers to the act of extracting stomach contents from the nasogastric tube. This act can effectively confirm the emptying of the stomach, and this step is very important to ensure the safety of feeding. Most of the current aspiration steps are performed through a syringe. The syringe is connected to the opening of the nasogastric tube, and then the plunger of the syringe is pulled to extract the stomach contents. The amount, color, and state of the stomach contents are observed to evaluate the patient's stomach emptying status.

The feeding procedure is to use an empty feeding needle and control the feeding process to about 15 to 20 minutes. The specific method is to connect the empty feeding needle to the opening of the nasogastric tube, add feeding liquid, and then hold it at a certain height with one hand so that the feeding liquid automatically flows into the patient's stomach through the nasogastric tube. There are also some details that need to be paid attention to during the feeding process. For example, in order to prevent the patient from experiencing discomfort such as flatulence, care must be taken to avoid letting air enter the stomach during the feeding process.

To summarize the above, it can be roughly concluded that during each feeding care process, the user must first use a syringe to back-draw to confirm the patient's stomach condition, and then use the empty feeding needle to feed the feeding liquid. During the entire operation, care must be taken not to allow air to enter the patient's stomach to avoid causing many discomfort symptoms. In this operation practice, the user can only perform the above steps with one hand, so it is very inconvenient to perform, and it is very easy for too much air to enter during the process, causing discomfort to the patient.

In view of this, the invention team has gathered rich clinical experience and actual feedback from patients or caregivers, and conceived and proposed a feeding device with a back-feeding function, hoping to effectively solve the problem of inconvenience and difficulty in feeding, so as to provide patients with more comfortable and safe feeding quality.

One of the purposes of the present invention is to provide a feeding device with a back-drawing function, so that the back-drawing and feeding operations can be performed through the same object, and through the special structural design, it has excellent convenience and safety in use, so as to improve the difficulty and inconvenience in the execution of the feeding and back-drawing steps.

To achieve the above-mentioned purpose, the present invention provides a feeding device with a back-drawing function, which can be used for feeding and back-drawing operations, comprising: a tube assembly made of elastic material, and the tube assembly has a first opening, a second opening and a hanging piece, the first opening and the second opening are arranged opposite to each other, and the hanging piece is arranged near the end of the first opening; a cover body, which is provided to cover the first opening of the tube assembly, and the cover body is provided with a finger pressing part, wherein the finger pressing part has a control hole, and the control hole is interconnected with the internal space of the tube assembly after the cover body is covered on the tube assembly; a liquid outlet, which is a hollow structure and is arranged at the second opening of the tube assembly, and the liquid outlet has an upper liquid inlet part and a lower liquid outlet formed in one piece. The upper liquid inlet is connected to the second opening and has a liquid inlet, wherein the upper liquid inlet has an arc-shaped inner wall surface that is concave from the outside to the inside, and forms a structural state in which the width decreases toward the lower liquid outlet; the lower liquid outlet is a cross-tube structure and has a vertical tube section and a horizontal tube section, one end of the vertical tube section is connected to the narrowest end of the upper liquid inlet, and the other end has a liquid outlet and is connected to a nasogastric tube, and the inner diameter of the horizontal tube section is D1; a switch assembly is arranged on the horizontal tube section, and the switch assembly includes a first column, a second column and a plate, and the plate is connected between the first column and the second column, and the plate has a through hole, wherein the minimum width of the first column is D 2, the minimum width of the second column is D3, the thickness of the plate is D4, and D2 and D3 are slightly smaller than D1, and D2=D3>D4, wherein the first column is moved so that the plate is located at a position corresponding to the vertical pipe section, the vertical pipe section and the upper liquid inlet are interconnected, and the first column is moved so that the first column is located at a position corresponding to the vertical pipe section, the vertical pipe section and the upper liquid inlet are not interconnected; and a stopper bead is arranged in the liquid outlet and is made of silicone material, the stopper bead has a hollow part, a solid part and a protruding structure, the hollow part and the solid part are arranged opposite to each other, and the solid part faces the lower liquid outlet, and the protruding structure is formed by extending from the outer surface of the hollow part; wherein, a back-drawing operation is performed During operation, the switch assembly is adjusted to make the vertical tube section and the upper liquid inlet part form a non-connected state, and the tube assembly is connected to the outside through the control hole. Then, after squeezing the tube assembly, it is pressed against the finger pressure part to cover the control hole to close the inside of the tube assembly, and then the switch assembly is adjusted to make the vertical tube section and the upper liquid inlet part form a connected state, and then the tube assembly is released to automatically extract the gastric substance; during feeding operation, after the tube assembly is placed in the feeding liquid, the switch assembly is adjusted to make the vertical tube section and the upper liquid inlet part form a connected state, and the feeding liquid is injected into the nasogastric tube from the liquid outlet, and when the liquid outlet does not have the feeding liquid, the solid part of the stop bead is blocked against the top of the vertical tube section.

Preferably, the tube assembly includes a tube portion and an arc-shaped grip portion, the tube portion is a uniform thickness structure, and the arc-shaped grip portion is wrapped around the tube portion, so that the total thickness of the tube assembly decreases from the center of the tube assembly toward the first opening and the second opening.

Preferably, the angle between the central axis of the vertical pipe section and the tangent line of the inner wall surface of the upper liquid inlet portion is 28-32 degrees.

Preferably, the feeding device further comprises an anti-slip assembly, which is arranged on the liquid outlet and has a connecting piece and a clamping body. One end of the connecting piece is connected to the liquid outlet, and the other end is connected to the clamping body. The clamping body is provided to be clamped at the connection between the vertical tube section and the nasogastric tube, and the clamping body has a C-shaped section and two extension sections, and the extension sections are respectively formed by extending from the ends of the C-shaped section.

Preferably, the tube assembly has at least one row of volume numerical markings, the volume numerical markings are located on the outer surface of the tube, and the arc-shaped grip is transparent.

Preferably, the width of the hollow portion of the stopper bead decreases from the end connected to the solid portion toward the other end, and the width of the solid portion decreases from the end connected to the hollow portion toward the other end, so that the outer contour formed by connecting the hollow portion and the solid portion is gyro-shaped, and the protruding structure is a sheet-like structure, and its thickness gradually decreases from the end connected to the hollow portion toward the other end.

Preferably, the cover has a snap-fitting part, the profile of which corresponds to the first opening, the snap-fitting part is made of a high friction coefficient material and is located in the central area of the cover, and is sandwiched with the edge of the cover to form an annular recess; wherein when the cover is covered with the first opening, the outer side of the snap-fitting part is tightly attached to the inner side of the tube assembly.

Preferably, the cover further includes an annular rubber strip, which is assembled in the annular recess, and when the cover is assembled on the first opening, the annular rubber strip is pressed against the edge of the first opening.

Preferably, the annular rubber strip has a pull ear, which is formed by extending from the outer edge of the annular rubber strip and abutting against the edge of the cover.

Preferably, the inner side surface of the upper liquid inlet portion of the liquid outlet has an annular convex rib, and the outer side surface of the tube assembly adjacent to the second opening has an annular clamping groove; wherein when the liquid outlet assembly is arranged at the second opening, the annular convex rib is clamped in the annular clamping groove.

In summary, the feeding device with back-drawing function of the present invention can effectively improve the efficiency and safety of feeding through special structural design. The feeding device can be directly used as a back-drawing device, which effectively simplifies the care steps of each feeding and reduces the inconvenience and danger caused by changing the device. Specifically, through the control of the control hole, the finger pressure part, and the switch assembly, the user can use the tube assembly to perform back-drawing of stomach contents and feeding liquid relative to the patient, shortening the time spent on feeding care. At the same time, combined with the stop bead structure, it can prevent the situation where air enters the stomach when the feeding is not stopped immediately after the feeding is completed, thereby reducing the probability of air entering the patient's intestines and stomach. Furthermore, in order to enhance the various functions of the feeding device, such as airtightness, ease of use, etc., the present invention also proposes many additional technical features, as described in the above paragraphs.

1:Feeding device

10: Tube assembly

101: First opening

102: Second opening

103: Hanging parts

104: Management Department

105: Arc-shaped grip

106: Volume digital annotation

107: Ring card slot

11: Cover

111: Finger pressure point

1111: Control hole

112: snap-fit parts

113: Annular concave part

114: Ring-shaped rubber strip

1141: Pull the ear

12: Liquid outlet

121: Upper liquid entry part

1211: Liquid inlet

1212: Annular ribs

122: Lower liquid outlet

1221: Vertical pipe section

12211:Liquid outlet

1222: Horizontal pipe section

13: Switch assembly

131: First column

132: Second column

133: Board

1331:Through hole

14: Stop beads

141: Hollow part

142: Solid part

143: Protruding structure

15: Anti-slip assembly

151: Connectors

152: Clamp

1521: C-type section

1522: Extension section

2: Nasogastric tube

C: Center axis of vertical pipe section

T: Tangent line of the inner wall surface of the upper liquid inlet

D0: Inner diameter of horizontal pipe section

D1: Inner diameter of vertical pipe section

D2: Minimum width of the first column

D3: Minimum width of the second column

D4: Thickness of the board

θ: angle of inclination

Figure 1 is a schematic diagram of the feeding device structure of a preferred embodiment of the present invention.

Figure 2 is a schematic cross-sectional view of a feeding device according to a preferred embodiment of the present invention.

Figure 3 is a schematic diagram of the cover structure of a preferred embodiment of the present invention.

Figure 4A is a schematic diagram of the application of the feeding device of the preferred embodiment of the present invention (I).

Figure 4B is a schematic diagram of the application of the feeding device of the preferred embodiment of the present invention (II).

Figure 5 is a schematic diagram of the application of the feeding device of the preferred embodiment of the present invention (III).

Figure 6 is a cross-sectional schematic diagram of another embodiment of the feeding device of the preferred embodiment of the present invention.

In order to enable people with general knowledge in this field to clearly understand the content of this invention, please refer to the following explanation with diagrams. The structural scale, proportion, size, shape or application status shown in each figure are only for illustration, used to illustrate the technical features of this invention, and do not represent the actual structural design. Its scale and proportion can be adaptively adjusted according to the use requirements, so it is necessary to explain it in advance.

Please refer to Figures 1 to 5, which are schematic diagrams of the feeding device structure, the feeding device cross-section diagram, the cover structure diagram, and the feeding device application diagrams (I), (II) and (III) of the preferred embodiment of the present invention. The present invention discloses a feeding device 1 with a back-drawing function for feeding and back-drawing operations, which includes a tube assembly 10, a cover 11, a liquid outlet 12, a switch assembly 13 and a stop bead 14.

The tube assembly 10 is made of elastic material and has a structure that can be squeezed. The tube assembly 10 has a first opening 101, a second opening 102 and a hanging piece 103. The first opening 101 and the second opening 102 are arranged opposite to each other. The hanging piece 103 is arranged near the end of the first opening 101 so that the feeding device 1 can be hung for use, thereby eliminating the inconvenience of the user holding the feeding device in hand. The cover 11 is provided to cover the first opening 101 of the tube assembly 10, and the cover 11 is provided with a finger pressing portion 111, wherein the finger pressing portion 111 has a control hole 1111, and the control hole 1111 is interconnected with the inner space of the tube assembly 10 after the cover 11 is covered on the tube assembly 10. The finger pressing portion 111 can be a structure protruding from the surface of the cover 11, and its top surface can be concave so that fingers can be pressed and fit on it more easily. The liquid outlet 12 is a hollow structure and is disposed at the second opening 102 of the tube assembly 10. The liquid outlet 12 has an upper liquid inlet 121 and a lower liquid outlet 122 formed in one piece. The upper liquid inlet 121 is connected to the second opening 102 and has a liquid inlet 1211. The upper liquid inlet 121 has an arc-shaped inner wall surface that is concave from the outside to the inside, and forms a structural state in which the width decreases toward the lower liquid outlet 122. The lower liquid outlet 122 is a cross-tube structure and has a vertical tube section 1221 and a horizontal tube section 1222. One end of the vertical tube section 1221 is connected to the narrowest end of the upper liquid inlet 121, and the other end has a liquid outlet 12211 for connection with the nasogastric tube 2. The inner diameter of the horizontal tube section 1222 is D1. The liquid outlet 12 can be an integral structure with the tube assembly 10, or can be designed as a detachable structure. In this embodiment, the liquid outlet 12 and the tube assembly 10 are an integral structure. Preferably, in one embodiment, the inner diameter of the vertical tube section 1221 is D0, and D1>D0 can be set, so that the diameter of the vertical tube section 1221 is smaller than that of the horizontal tube section 1222.

The switch assembly 13 is disposed on the horizontal pipe section 1222. The switch assembly 13 includes a first column 131, a second column 132 and a plate 133. The plate 133 is connected between the first column 131 and the second column 132, and the plate 133 has a through hole 1331. The minimum width of the first column 131 is D2, the minimum width of the second column 132 is D3, and the thickness of the plate 133 is D4. , and meets the relationship that D2 and D3 are slightly smaller than D1, and D2=D3>D4, wherein the first column 131 is moved so that the plate 133 is located at a position corresponding to the vertical pipe section 1221, and the vertical pipe section 1221 and the upper liquid inlet 121 are interconnected, and the first column 131 is moved so that the first column 131 is located at a position corresponding to the vertical pipe section 1221, and the vertical pipe section 1221 and the upper liquid inlet 121 are not interconnected. Wherein, the sides of the first column 131 and the second column 132 connected to the plate 133 can be provided with a blocking portion with a width greater than D2 and D3 to serve as a limiting structure. The stopper bead 14 is disposed in the liquid outlet 12 and is made of silicone material. The stopper bead 14 has a hollow portion 141, a solid portion 142 and a protruding structure 143. The hollow portion 141 and the solid portion 142 are disposed opposite to each other, and the solid portion 142 faces the lower liquid outlet 122. The protruding structure 143 is formed by extending from the outer surface of the hollow portion 141.

When performing the back-drawing operation, the switch assembly 13 is adjusted to make the vertical pipe section 1221 and the upper liquid inlet 121 form a disconnected state, that is, the first column 131 blocks the vertical pipe section 1221, and the tube assembly 10 is connected to the outside through the control hole 1111. Then, after squeezing the tube assembly 10, it is pressed against the finger pressure part 111 to cover the control hole 1111 to make the tube assembly 10 and the outside form a disconnected state. That is, the inside of the tube assembly 10 is closed, and then the switch assembly 13 is adjusted to make the vertical pipe section 1221 and the upper liquid inlet 121 mutually connected, that is, the plate The through hole 1331 of the plate 133 corresponds to the vertical tube section 1221, and then the tube assembly 10 is released to automatically extract the gastric substance; when performing the feeding operation, after the tube assembly 10 is placed in the feeding liquid, the switch assembly 13 is adjusted to make the vertical tube section 1221 and the upper liquid inlet portion 121 form a connection state, that is, the through hole 1331 of the plate 133 corresponds to the vertical tube section 1221, and the feeding liquid is injected into the nasogastric tube from the liquid outlet 12211, and when the liquid outlet 12 does not have the feeding liquid, the solid part 142 of the stop bead 14 is blocked against the top of the vertical tube section 1221.

Accordingly, due to the special structural features of the feeding device 1, the user only needs to use the feeding device 1 to perform the pumping and feeding operations during the entire feeding care process, thereby having excellent convenience of use and more effectively preventing air from entering the patient's stomach during the feeding care process to cause discomfort.

In order to facilitate squeezing the tube assembly 10, it is preferred that the tube assembly 10 includes a tube portion 104 and an arc-shaped grip portion 105. The tube portion 104 is a uniform thickness structure, and the arc-shaped grip portion 105 is provided outside the tube portion 104 so that the total thickness of the tube assembly 10 decreases from the center of the tube assembly 10 toward the first opening 101 and the second opening 102. Accordingly, the arc-shaped grip portion 105 can provide the user with a better grip and force feeling, so that it is easier to squeeze the tube assembly 10 and discharge the internal air during the back-drawing operation. Among them, the aforementioned total thickness of the tube assembly 10 refers to the sum of the thickness of the tube portion 104 and the thickness of the arc-shaped grip portion 105.

In addition, the angle θ between the central axis C of the vertical tube section 1221 and the tangent line T of the inner wall of the upper liquid inlet 121 is 28-32 degrees, so that the feeding liquid can slide to the lower liquid outlet 122 more easily through the angle design, and prevent food residues from getting stuck in the tapered position of the upper liquid inlet 121, so as to provide an accurate total amount of feeding. Preferably, the angle θ between the central axis C of the vertical tube section 1221 and the tangent line L of the inner wall of the upper liquid inlet 121 can be 30 degrees.

In addition, in the present embodiment, the feeding device 1 further comprises an anti-slip assembly 15, which is disposed on the liquid outlet 12 and has a connector 151 and a clamp 152. One end of the connector 151 is connected to the liquid outlet 12, and the other end is connected to the clamp 152. The clamp 152 is clamped at the connection between the vertical tube section 1221 and the nasogastric tube 2, and the clamp 152 has a C-shaped section 1521 and two extension sections 1522, and the extension sections 1522 are respectively formed by extending from the ends of the C-shaped section 1521. When the nasogastric tube 2 is assembled to the vertical tube section 1221, the C-shaped section 1521 of the clip 152 can be clamped at the connection between the nasogastric tube 2 and the vertical tube section 1221. When the nasogastric tube 2 is to be disassembled, the distance of the open end of the C-shaped section 1521 can be expanded through the extension sections 1522, so that the clip 152 can be separated from the connection between the vertical tube section 1221 and the nasogastric tube 2. In addition, the connecting piece 151 is preferably an elastic or inelastic rope, and one end of which can be fixed to the vertical tube section 1221, the upper liquid inlet 121 or the horizontal tube section 1222 by tying or bonding.

In order to facilitate viewing the exact amount of back suction and feeding directly on the tube assembly 10, the tube assembly 10 has at least one row of volume digital markings 106, the volume digital markings 106 are located on the outer surface of the tube portion 104, and the arc-shaped grip portion 105 is transparent. Furthermore, the volume digital markings 106 can also be designed as two rows, and in a reverse symmetrical state.

In addition, in order to allow the stop bead 14 to more reliably block the vertical tube section 1221 when the feeding liquid is completed, in one embodiment, the width of the hollow portion 141 of the stop bead 14 decreases from the end connected to the solid portion 142 toward the other end, and the width of the solid portion 142 decreases from the end connected to the hollow portion 141 toward the other end, so that the outer contour formed by the connection of the hollow portion 141 and the solid portion 142 is slightly gyro-shaped, and the protruding structure 143 is a sheet-like structure, and its thickness gradually decreases from the end connected to the hollow portion 141 toward the other end. Thus, through this contour shape, the blocking bead 14 can be more closely fitted to the vertical tube section 1221 to achieve an excellent blocking effect on the connection between the vertical tube section 1221 and the nasogastric tube 2. The protruding structure 143 is a sheet-like structure, which is easier to take out, for example, by pinching it out of the liquid outlet 12, so as to facilitate cleaning or replacement.

In order to ensure better sealing performance after the cover 11 and the tube assembly 10 are assembled, the cover 11 can have a snap-fitting part 112, the contour of which corresponds to the first opening 101. The snap-fitting part 112 is made of a high friction coefficient material and is located in the central area of the cover 11. It is clamped with the edge of the cover 11 to form an annular recess 113, and the control hole 1111 passes through the snap-fitting part 112. When the cover 11 is covered on the first opening 101, the outer side surface of the snap-fitting part 112 is tightly attached to the inner side surface of the tube assembly 10. In this way, after the cover 11 is covered on the first opening 101, the cover 11 can form an excellent sealing effect relative to the tube assembly 10 through the snap-fitting member 112, so as to facilitate the execution of back-drawing, feeding and other operations.

Furthermore, in order to enhance the waterproof effect and the sealing effect, the cover 11 may further include an annular adhesive strip 114, which is assembled in the annular recess 113, and when the cover 11 is assembled on the first opening 101, the annular adhesive strip 114 is pressed against the edge of the first opening 101. Through the annular adhesive strip 114, the sealing property of the cover 11 after being assembled on the tube assembly 10 can be effectively improved. Furthermore, the annular rubber strip 114 has a pull ear 1141, which is formed by extending from the outer edge of the annular rubber strip 114 and abutting against the edge of the cover 11. Therefore, it is convenient to remove the annular rubber strip 114 for cleaning. The user only needs to use the pull ear 1141 to quickly and conveniently remove the annular rubber strip 114 from the cover 11.

In application, as shown in FIGS. 4A, 4B and 5, the feeding device 1 can be hung at a certain height through the hanging member 103 for use. When the back-drawing operation is to be performed, the first column 131 is moved to block the vertical pipe section 1221 so that the vertical pipe section 1221 and the upper liquid inlet portion 121 are disconnected, and then the tube assembly 10 is squeezed to discharge the internal air, as shown in FIG. 4A. In order to facilitate the illustration of the structure of the tube assembly 10, the hand is not shown in this figure. Then, the first column 131 is moved in the reverse direction to move the plate 133 and the through hole 1331 thereon to the position of the vertical tube section 1221, so that the vertical tube section 1221 and the upper liquid inlet portion 12 are in a connected state, and then the finger is pressed against the finger pressing portion 111 to block the control hole 1111, and the tube assembly 10 is released, and the patient's stomach substances can be extracted into the tube assembly 10, as shown in Figure 4B. At this time, it is possible to observe whether the stomach substances are abnormal and how much they are. When the stomach substances are to be returned to the stomach, only the finger needs to be removed to connect the control hole 1111 with the external environment, and the back-drawn stomach substances can automatically flow back to the patient's stomach. When performing feeding, the first step is to confirm that the first column 131 is located at the vertical tube section 1221, so that the vertical tube section 1221 and the upper liquid inlet portion 121 are not connected, and then the feeding liquid is placed in the tube assembly 10, and then the first column 131 is moved so that the plate 133 and the through hole 1331 are located at the vertical tube section 1221, and the feeding liquid can automatically flow into the patient's stomach through the nasogastric tube 2. When the feeding is completed, the stop bead 14 will be located at the top of the vertical tube section 1221 to form a blockage to prevent the switch assembly 13 from being adjusted in time and causing air to enter the patient's stomach.

Please refer to FIG. 6, which is a cross-sectional schematic diagram of another embodiment of the feeding device of the preferred embodiment of the present invention. In addition to being an integrally formed structure with the tube assembly 10, the liquid outlet 12 can also be designed to be detachable relative to the tube assembly 10. In this embodiment, the inner side surface of the upper liquid inlet portion 121 of the liquid outlet 12 has an annular convex rib 1212, and the outer side surface of the tube assembly 10 adjacent to the second opening 102 has an annular groove 107; wherein when the liquid outlet 12 is assembled in the second opening 102, the annular convex rib 1212 is locked in the annular groove 107. The design of the annular rib 1212 and the annular groove 107 provides great convenience in use. The liquid outlet 12 and the tube assembly 10 can be locked and fixed to each other or separated by applying a slight force to the liquid outlet 12 and the tube assembly 10 . Among them, in another embodiment, the assembly structure of the cover 11 and the tube assembly 10 can also be designed in the same way as the assembly scheme of the liquid outlet 12 and the tube assembly 10, that is, the inner side of the cover 11 is provided with a rib, and the outer side of the tube assembly 10 is provided with a corresponding slot structure near the first opening 101, so that the assembly and disassembly of the cover 11 and the tube assembly 10 are achieved by applying a slight force to press the latch to fix them, and applying a slight force to pull them apart from each other.

In summary, the feeding device with back-drawing function of the present invention provides a dual-purpose feeding device that can be used for both back-drawing and feeding, and is very convenient and easy to use, and can be used as an excellent liquid food care auxiliary tool. Specifically, based on the above-mentioned technical features, the feeding device can achieve the functions of back-drawing the patient's stomach contents and providing feeding liquid to the patient's stomach through the tube body assembly by adjusting and controlling the control hole of the finger pressure part and the switch assembly. Through the feeding device, the user does not need to use complicated operating steps and gestures to back-draw and feed, and in terms of structural design, the feeding device also has many features, such as the output The upper liquid inlet of the liquid part has an arc-shaped inner wall surface that is concave from the outside to the inside, forming a structural state that shrinks toward the lower liquid outlet, so as to prevent food from getting stuck and facilitate the falling of food; the blocking bead can effectively block air, and its setting direction can be ensured by the hollow and solid design; the switch assembly allows the user to quickly adjust the connection state between the vertical pipe section and the upper liquid inlet, so as to facilitate the back-drawing or feeding operation, etc. In order to improve the performance of the feeding device in various aspects, the present invention also proposes a number of additional detailed technical features. For example, to improve the convenience of applying force for gripping and squeezing, this can be achieved by making the tube body assembly include the structural features of the tube part and the arc-shaped gripping part; to prevent the back-drawn material or feeding liquid from being easily retained in the liquid outlet, this can be achieved by adjusting the angle between the central axis of the vertical tube section and the tangent line of the inner wall of the upper liquid inlet part to 28-32 degrees; or to prevent the nasogastric tube from slipping when connected, the feeding device can be provided with the anti-slip assembly to enhance the assembly stability of the nasogastric tube and the vertical tube section; and to facilitate viewing of the feeding liquid or back-drawn material, the volume digital marking can be set on the tube body assembly and the The arc-shaped grip is transparent to facilitate quick identification; and regarding the assembly between components, the cover can be tightly assembled with the tube assembly through the snap-fitting part and the annular recess, and when the liquid outlet and the tube assembly are detachable structures, the annular ribs can be used to match the annular groove of the tube assembly so that the two can also be tightly assembled; further, When the annular recess structure is provided, an annular rubber strip can be provided to enhance the airtightness of the cover and the tube assembly after assembly, and to facilitate replacement or cleaning of the annular rubber strip, a pull ear structure can be provided on the annular rubber strip; as for the stop bead part, its contour shape and protruding structural features can be further designed to achieve better air blocking effect and convenience of taking. In view of the fact that the existing feeding care process and operation are difficult to implement and inconvenient, in order to improve the quality of life of those who need feeding, and the situation where the feeding demand increases due to the aging social structure, the invention team hopes to provide an auxiliary product that is easy to use and saves time and effort, so that users who perform feeding care operations no longer need to spend a lot of time and energy on feeding and back-feeding. At the same time, it can also greatly reduce the discomfort and pressure caused by the improper feeding and back-feeding operations that cause the patient to derive many discomforts and symptoms. For the patient himself, he can also obtain better feeding quality according to the feeding device, reduce the patient's rejection of feeding, and hope that feeding care will no longer be a source of life pressure for patients and caregivers.

However, the above is only a preferred embodiment of the present invention and cannot be used to limit the scope of implementation of the present invention; therefore, all equivalent changes and modifications made without departing from the scope of the present invention should be included in the patent scope of the present invention.

1:Feeding device

10: Tube assembly

103: Hanging parts

104: Management Department

105: Arc-shaped grip

106: Volume digital annotation

11: Cover

111: Finger pressure point

1111: Control hole

12: Liquid outlet

121: Upper liquid entry part

1211: Liquid inlet

122: Lower liquid outlet

1221: Vertical pipe section

1222: Horizontal pipe section

13: Switch assembly

131: First column

132: Second column

133: Board

1331:Through hole

14: Stop beads

141: Hollow part

142: Solid part

143: Protruding structure

15: Anti-slip assembly

151: Connectors

152: Clamp

1521: C-type section

1522: Extension section

2: Nasogastric tube

Claims (10)

A feeding device with a back-drawing function, which can be used for feeding and back-drawing operations, comprises: A tube assembly made of elastic material, and the tube assembly has a first opening, a second opening and a hanging piece, the first opening and the second opening are arranged opposite to each other, and the hanging piece is arranged near the end of the first opening; A cover body, which is provided to cover the first opening of the tube assembly, and the cover body is provided with a finger pressure part, wherein the finger pressure part has a control hole, and the control hole is interconnected with the internal space of the tube assembly after the cover body is covered on the tube assembly; A liquid outlet is a hollow structure and is disposed at the second opening of the tube assembly. The liquid outlet has an upper liquid inlet and a lower liquid outlet formed in one piece. The upper liquid inlet is connected to the second opening and has a liquid inlet. The upper liquid inlet has an arc-shaped inner wall surface that is concave from the outside to the inside, and forms a structural state in which the width decreases toward the lower liquid outlet. The lower liquid outlet is a cross-tube structure and has a vertical tube section and a horizontal tube section. One end of the vertical tube section is connected to the narrowest end of the upper liquid inlet, and the other end has a liquid outlet and is provided for connection with a nasogastric tube. The inner diameter of the horizontal tube section is D1; A switch assembly is arranged in the horizontal pipe section, the switch assembly includes a first column, a second column and a plate, the plate is connected and arranged between the first column and the second column, and the plate has a through hole, wherein the minimum width of the first column is D2, the minimum width of the second column is D3, the thickness of the plate is D4, and it meets the relationship that D2 and D3 are slightly smaller than D1, and D2=D3＞D4, wherein the first column is moved so that the plate is located at a position corresponding to the vertical pipe section, and the vertical pipe section and the upper liquid inlet are interconnected, and the first column is moved so that the first column is located at a position corresponding to the vertical pipe section, and the vertical pipe section and the upper liquid inlet are not interconnected; and A stopper bead is disposed in the liquid outlet and is made of silicone material. The stopper bead has a hollow portion, a solid portion and a protruding structure. The hollow portion and the solid portion are disposed opposite to each other, and the solid portion faces the lower liquid outlet. The protruding structure is formed by extending from the outer surface of the hollow portion; Among them, when performing the back-drawing operation, the switch assembly is adjusted to make the vertical tube section and the upper liquid inlet part form a disconnected state, and the tube body assembly is connected to the outside through the control hole. Then, after squeezing the tube body assembly, it is pressed against the finger pressure part to cover the control hole to make the tube body assembly form a disconnected state with the outside, and then the switch assembly is adjusted to make the vertical tube section and the upper liquid inlet part mutually connected, and then the tube body assembly is released to automatically extract the gastric substance; when performing the feeding operation, after the tube body assembly is placed in the feeding liquid, the switch assembly is adjusted to make the vertical tube section and the upper liquid inlet part form a connected state, and the feeding liquid is injected into the nasogastric tube from the liquid outlet, and when the liquid outlet does not have the feeding liquid, the solid part of the stop bead is blocked against the top of the vertical tube section. A feeding device with a back-drawing function as described in claim 1, wherein the tube body assembly includes a tube portion and an arc-shaped grip portion, the tube portion is a uniform thickness structure, and the arc-shaped grip portion is wrapped around the outside of the tube portion, so that the total thickness of the tube body assembly decreases from the center of the tube body assembly toward the first opening and the second opening. As described in claim 2, the feeding device with back-drawing function, wherein the angle between the central axis of the vertical tube section and the tangent line of the inner wall surface of the upper liquid inlet portion is 28 to 32 degrees. The feeding device with back-drawing function as described in claim 3 further includes an anti-slip assembly, which is arranged on the liquid outlet and has a connecting piece and a clamp. One end of the connecting piece is connected to the liquid outlet, and the other end is connected to the clamp. The clamp is used to be clamped at the connection between the vertical tube section and the nasogastric tube, and the clamp has a C-shaped section and two extension sections, and the extension sections are respectively extended from the ends of the C-shaped section. As described in claim 4, the feeding device with back-drawing function, wherein the tube body assembly has at least one row of volume numerical markings, the volume numerical markings are located on the outer surface of the tube, and the arc-shaped gripping portion is transparent. A feeding device with a back-drawing function as described in any one of claims 1 to 5, wherein the width of the hollow portion of the stop bead decreases from the end connected to the solid portion toward the other end, and the width of the solid portion decreases from the end connected to the hollow portion toward the other end, so that the outer contour formed by the connection between the hollow portion and the solid portion is slightly gyro-shaped, and the protruding structure is a sheet-like structure, and its thickness gradually decreases from the end connected to the hollow portion toward the other end. A feeding device with a back-drawing function as described in claim 6, wherein the cover body has a snap-fitting piece, the contour of the snap-fitting piece corresponds to the first opening, the snap-fitting piece is made of a high friction coefficient material and is located in the central area of the cover body, and is clamped with the edge of the cover body to form an annular recess, and the control hole passes through the snap-fitting piece; wherein when the cover body covers the first opening, the outer side surface of the snap-fitting piece is tightly attached to the inner side surface of the tube assembly. As described in claim 7, the feeding device with back-drawing function, wherein the cover body further includes an annular rubber strip, which is assembled in the annular recess, and when the cover body is assembled on the first opening, the annular rubber strip is pressed against the edge of the first opening. As described in claim 8, the feeding device with back-drawing function, wherein the annular rubber strip has a pull ear, which is extended from the outer edge of the annular rubber strip and abuts against the edge of the cover body. As described in claim 9, the feeding device with back-drawing function, wherein the inner side surface of the upper liquid inlet portion of the liquid outlet has an annular convex rib, and the outer side surface of the tube body assembly adjacent to the second opening has an annular groove; when the liquid outlet assembly is arranged at the second opening, the annular convex rib is locked in the annular groove.