Feeder for medical care

Abstract

A feeder for medical care comprises a base, a first baffle and a seat plate, the first baffle and the seat plate are arranged on the base in a spaced mode, the first baffle is used for abutting against the front end of a cylinder of an injector and allowing an injection nozzle at the front end of the cylinder to leak out, a nut is arranged on the seat plate, a lead screw is installed in the nut in a matched mode, and the end, facing the first baffle, of the lead screw is used for pressing a push-pull handle of the injector. A handle for people to rotate the lead screw is arranged at the end, away from the first baffle, of the lead screw. The device is used for extruding large-particle or caked liquid food to be injected into a snub through an injector, and discomfort caused by the fact that the liquid food violently rushes into the stomach of a patient is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of feeding care, in particular to a feeder for medical care. Background Art

[0002] Clinically, some patients who are unconscious or have difficulty chewing or swallowing need to have a gastric tube implanted for fluid feeding. Generally, the front end of the gastric tube is inserted into the patient's stomach, and liquid food is injected into the rear end of the tube with a syringe to supplement the patient with necessary nutrition, water and medicine.

[0003] Because there are often insufficiently ground large particles or lumps in liquid food, which can easily block the injection port of the syringe, medical staff usually need to apply greater pressure to the push-pull handle of the syringe to break or deform the large particles or lumps under greater pressure so that they can pass smoothly. After the large particles or lumps pass through, the staff's hands are particularly likely to further press the push-pull handle under the action of inertia, causing the liquid food to rush into the patient's stomach, causing severe discomfort. Summary of the invention

[0004] The present invention aims to provide a feeder for medical care, which can reduce the discomfort caused by liquid food rushing into the patient's stomach.

[0005] In order to solve the above technical problems, the specific solution adopted by the present invention is: a feeder for medical care, comprising a base and a first baffle and a seat plate arranged at intervals on the base, the first baffle being used for the front end of the barrel of the syringe to touch and for the injection nozzle at the front end of the barrel to leak out, a nut being provided on the seat plate, a lead screw being installed in the nut, one end of the lead screw facing the first baffle being used for pressing the push-pull handle of the syringe, and the end of the lead screw away from the first baffle being provided with a handle for a person to turn the lead screw.

[0006] Preferably, a second baffle and a slide plate are sequentially provided on the base between the first baffle and the seat plate, a placement cavity for placing the barrel of the syringe is formed between the second baffle and the first baffle, a hole is provided on the second baffle for the push-pull handle to extend to the slide plate, a slot is provided on the slide plate for clamping the end of the push-pull handle, and the slide plate is rotatably connected to the screw.

[0007] Preferably, a blind hole is provided on a side of the seat plate opposite to the first baffle, and the blind hole is used for the nut to be clamped and installed, and the nut can be removed from the blind hole under the action of external force.

[0008] Preferably, the shape of the blind hole is a polygon, and the shape of the outer edge of the nut is a corresponding polygon.

[0009] Preferably, a shift plate is provided on the lead screw at a position between the seat plate and the handle.

[0010] Preferably, it also includes a gastric tube, the front end of which is used to be inserted into the patient's stomach, and the rear end is connected to the liquid food container, the injection nozzle is connected to the gastric tube near the rear end of the gastric tube, and one-way valves are respectively provided on both sides of the injection nozzle on the gastric tube.

[0011] Preferably, it includes two syringes and two corresponding lead screws, two slides and two nuts, the two lead screws are respectively provided with synchronous gears and the two synchronous gears are meshed and connected, so that the two lead screws rotate synchronously and cooperate with the corresponding nuts to move synchronously in opposite directions, so that the two push-pull handles are pushed and pulled alternately to achieve feeding with one syringe and extracting liquid food with the other syringe.

[0012] Preferably, a gear box for accommodating two synchronous gears is fixed on the base, and a first bevel gear is rotatably provided in the gear box. The first bevel gear is meshed and connected with a second bevel gear arranged on one of the lead screws, and the axle of the first bevel gear passes through the gear box and is connected to the handle.

[0013] Preferably, a sliding key is fixedly provided in the center hole of the synchronous gear, and a keyway cooperating with the sliding key is correspondingly provided on the lead screw; and a supporting mechanism for preventing the synchronous gear from moving axially is provided in the gear box.

[0014] Preferably, the two injection nozzles are respectively connected to branch tubes, one-way valves are respectively provided on both sides of the two branch tubes at the injection nozzles, and one end of the two branch tubes is connected to the liquid food container, and the other end is connected to the gastric tube.

[0015] In the present invention, the screw is rotated so that the screw moves in a straight line with the cooperation of the screw nut to push the push-pull handle of the syringe, so that the liquid food in the syringe enters the patient's stomach through the gastric tube. After the large particles or lumps in the liquid food are blocked at the injection nozzle position, compared with the conventional method of linearly pushing the syringe for feeding, although sufficient pressure is required to force them to break or deform to pass through, the power applied by the personnel in the present invention is not a linear thrust, but a thrust is applied in a direction roughly tangential to the circular rotation trajectory of the handle. Therefore, at the moment when the particles or lumps pass through the injection nozzle, the inertia generated by the power applied by the personnel is much smaller than the inertia of the linear power, so that after the large particles or lumps pass through the injection nozzle, the amount of liquid food filled into the patient's stomach, the flow rate and the impact force are significantly reduced, thereby reducing the pain suffered by the patient.

[0016] In a preferred embodiment of the present invention, a nut that can be detached from the seat plate is provided to speed up the replenishment of the liquid food in the syringe, or a double syringe is provided so that the liquid food feeding process and the liquid food replenishment process are carried out simultaneously, so that after one feeding, there is no need to spend a long time to replenish the liquid food in the syringe, thereby avoiding the discomfort to the patient caused by the liquid food becoming cold due to excessive feeding time, and also reducing the feeding time consumption of medical staff and improving feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of a medical care feeder according to embodiment 1 of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of a medical care feeder according to Embodiment 2 of the present invention;

[0019] Figure 3 For rotation Figure 2 The handle in the middle makes the lead screw move to the left;

[0020] Figure 4 For the general Figure 3 Schematic diagram of the state after the lead screw in is pulled to the right;

[0021] Figure 5 This is a schematic diagram of a top view of a medical care feeder according to Embodiment 3 of the present invention;

[0022] Figure 6 Schematic diagram of the structure of the lead screw part in Embodiment 3 of the present invention;

[0023] Markings in the figure: 1. nut, 2. seat plate, 3. ball head structure, 4. syringe, 401. push-pull handle, 402. cylinder, 403. injection nozzle, 5. one-way valve, 6. gastric tube, 7. first baffle, 8. base, 9. slide plate, 10. screw, 11. handle, 12. blind hole, 13. second baffle, 14. slot, 15. dial plate, 16. branch pipe, 17. synchronous gear, 18. support cylinder, 19. gear box, 20. second bevel gear, 21. first bevel gear, 22. spiral groove, 23. keyway. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is described below through three embodiments:

[0025] Example 1

[0026] like Figure 1 As shown, a medical care feeder of this embodiment comprises a horizontally distributed base 8, a first baffle plate 7 arranged at the left end of the base 8, a seat plate 2 arranged at the right end of the base 8, and a slide plate 9 slidably arranged on the base 8. The first baffle plate 7, the seat plate 2 and the slide plate 9 are all vertically distributed, wherein the first baffle plate 7 and the seat plate 2 are fixedly connected to the base 8, and a T-shaped slide block (not shown in the figure) is arranged at the bottom of the slide plate 9 to slide with a T-shaped slide groove (not shown in the figure) provided on the base 8, and the sliding direction is Figure 1 Horizontal left and right direction.

[0027] A syringe 4 is provided on the base 8 between the first baffle 7 and the slide 9. The front end face of the barrel 402 of the syringe 4 touches the right side of the first baffle 7, and a groove is provided on the first baffle 7 for the injection nozzle 403 at the front end of the barrel 402 to extend. After the injection nozzle 403 extends, it is connected to the tail end of a stomach tube 6, and the front end of the stomach tube 6 is used to insert the patient's stomach. The push-pull handle 401 of the syringe 4 touches the left side of the slide 9, and the right side of the slide 9 is rotatably connected to a screw 10 through a ball head structure 3. The screw 10 is distributed in the horizontal direction, and the middle part thereof is installed in cooperation with the nut 1 fixedly connected to the seat plate 2, and a handle 11 is fixedly connected to the right end.

[0028] Based on the above structure, the specific implementation process of this embodiment is as follows:

[0029] First, the injection nozzle 403 of the syringe 4 is connected to the liquid food container, and the push-pull handle 401 is pulled to generate negative pressure in the cylinder 402 to suck the liquid food into the cylinder 402. Then, the syringe 4 is placed on the base 8. Figure 1 The state shown is shown, and the injection nozzle 403 is connected to the tail end of the stomach tube 6. Finally, the operator rotates the handle 11 to drive the screw 10 to rotate, and the screw 10 and the nut 1 cooperate to make the screw 10 move to the left in the horizontal direction, and the left end of the screw 10 pushes the slide 9 to move to the left, and the slide 9 pushes the push-pull handle 401 to move to the left, so that the piston (not shown in the figure) at the left end of the push-pull handle 401 squeezes the liquid food in the cylinder 402 to the left, so that the liquid food is discharged to the stomach tube 6 through the injection nozzle 403, and finally enters the patient's stomach through the stomach tube 6.

[0030] Example 2

[0031] like Figure 2 As shown, the main difference between this embodiment and embodiment 1 is that: in this embodiment, a second baffle plate 13 is fixedly provided on the base 8 between the slide plate 9 and the first baffle plate 7, and a slot 14 is provided on the slide plate 9 in this embodiment for the tail end of the push-pull handle 401 to be plugged and fixed, and the nut 1 in this embodiment is not fixedly connected to the seat plate 2, but a blind hole 12 is opened on the right side of the seat plate 2, and the nut 1 is installed in the blind hole 12.

[0032] Based on the above differences, firstly, in this embodiment, the first baffle plate 7 and the second baffle plate 13 enclose a accommodating cavity with closed ends, so that the two ends of the barrel 402 of the syringe 4 can touch each other respectively. Secondly, the push-pull handle 401 is positioned in the horizontal direction by the card slot 14, so that the screw 10 can not only press the push-pull handle 401 to the left, but also pull the push-pull handle 401 to the right. Finally, the nut 1 can be removed from the blind hole 12 to the right. In addition, the front end of the gastric tube 6 in this embodiment is still inserted into the patient's stomach, while the rear end is directly connected to the bottom of the liquid food container. After the injection nozzle 403 is connected to the tail of the gastric tube 6, the gastric tube 6 is provided with the following positions on both sides of the connection between it and the injection nozzle 403. Figure 2 One-way valve 5 in the direction shown.

[0033] Based on the above structure, the specific implementation process of this embodiment is as follows:

[0034] The same as in Example 1 is that Figure 2 In the state shown, the cylinder 402 of this embodiment is filled with liquid food, and the screw 10 can be driven to move leftward by rotating the handle 11. Figure 3 The liquid food in the cylinder 402 is squeezed into the patient's tail through the stomach tube 6. Different from the first embodiment, after the liquid food is fed, the nut 1 can be pulled rightward along with the screw 10 to escape from the blind hole 12 to the end of the patient's tail. Figure 4 In the state shown, the push-pull handle 401 is pulled out by the lead screw 10 to re-absorb the liquid food from the liquid food container into the cylinder 402. Finally, the nut 1 is moved to the left by a person until it is re-engaged in the blind hole 12 and reset to Figure 2 The initial state shown can be repeated until the feeding is completed.

[0035] above Figures 2 to 3 During the implementation process, the nut 1 is subjected to the leftward pressure of the screw 10, so that the left side wall of the nut 1 touches the bottom position of the blind hole 12, so it is not easy to get out of the blind hole 12. Figure 3 to Figure 4 The implementation process allows personnel to quickly pull out the push-pull handle 401 to absorb the liquid food, avoiding the need to reverse the handle 11 and the screw 10 again, so that the push-pull handle 401 is slowly pulled out, resulting in a slow liquid food filling process, causing the actual food to cool and low feeding efficiency. Figure 4 to Figure 2During the resetting process, the dial plate 15 which is sleeved on the lead screw 10 and located between the nut 1 and the handle 11 can assist. The outer diameter of the dial plate 15 is larger than that of the nut 1, and a hole with a diameter larger than that of the lead screw 10 is opened in the center. The right side is for personnel to press, and the left side is a smooth surface for the right side of the nut 1 to slide and cooperate. During the resetting process of the nut 1, the personnel extends the index and middle fingers to press the dial plate 15 to the left, and the dial plate 15 pushes the nut 1 to the left. The nut 1 rotates and moves to the left under the left pressure until it re-enters the blind hole 12 to complete the resetting. In addition, to prevent the nut 1 from rotating in the blind hole 12, the outer edge of the nut 1 and the inner edge of the blind hole 12 in this embodiment are hexagons with corresponding shapes.

[0036] Example 3

[0037] Since the syringe 4 used for feeding with the stomach tube 6 is usually 20 ml in size, 5-10 injections are required for one feeding. Therefore, in order to further improve the feeding efficiency, Figure 5 The embodiment shown includes two syringes 4 and two sets of corresponding slide plates 9, lead screws 10 and screw nuts 1, and can simultaneously fill liquid food through one syringe 4 while feeding, so that uninterrupted feeding can be performed alternately and reciprocally. Specifically:

[0038] The two syringes 4 are arranged in parallel, and the two ends of the barrel 402 are limited by the same set of first baffles 7 and second baffles 13 fixed on the base 8. The injection nozzles 403 of the two syringes 4 are extended from the first baffles 7 and connected to the middle of the branch pipe 16 respectively, and the positions on both sides of the injection nozzles 403 on the branch pipe 16 are respectively provided as follows: Figure 5 The one-way valve 5 in the direction shown. The tail ends of the two branch tubes 16 are connected to the bottom of the same liquid food container, and the front ends are connected to the tail end of the same stomach tube 6, and the front end of the stomach tube 6 is still used to insert into the patient's stomach. The push-pull handles 401 in the two syringes 4 are in a phase-staggered state, that is, the upper push-pull handle 401 is completely inserted into the barrel 402, and the lower push-pull handle 401 is at a position where the barrel 402 is about to be pulled out.

[0039] The left ends of the two lead screws 10 are still connected to the corresponding slide plate 9 through the ball head structure 3, and the slide plate 9 is provided with a slot 14 at the tail end of the bidirectional positioning push-pull handle 401. The screw nut 1 matched with the lead screw 10 is fixed on the base plate 2, and a gear box 19 is fixed on the right side of the base plate 2. The gear box 19 is provided with a first bevel gear 21, a second bevel gear 20 and two synchronous gears 17. The two synchronous gears 17 are meshed with each other, and a sliding key is provided in the inner hole thereof, corresponding to the following Figure 6As shown, the lead screw 10 is provided with a keyway 23 for slidingly engaging with the sliding key, and the keyway 23 is cross-distributed with the spiral groove 22 fixed on the lead screw 10, so that the sliding pair between the keyway 23 and the sliding key and the rotating pair between the spiral groove 22 and the screw nut 1 do not affect each other. The first bevel gear 21 is fixed on the right end face of the lower synchronous gear 17, and the center thereof has a hole with a hole diameter larger than the outer diameter of the lead screw 10 so that the first bevel gear 21 is not directly released from the lead screw 10. The second bevel gear 20 meshes with the first bevel gear 21 and rotates with the box wall of the gear box 19 through the gear shaft. The gear shaft extends from the gear box 19 and is fixedly connected to a handwheel-type handle 11. In addition, in order to prevent the synchronous gear 17 from moving in the axial direction, the left side of the synchronous gear 17 slides with the corresponding side box wall of the gear box 19. At the same time, two support cylinders 18 are provided on the right side of the gear box 19. The upper support cylinder 18 is used to support the right end face of the corresponding synchronous gear 17 and provide sliding cooperation therewith, and the lower support cylinder 18 is used to support the right end face of the first bevel gear 21 and provide sliding cooperation therewith. In other embodiments, the inner wall of the gear box 19 can also be set as a special-shaped structure to directly contact and cooperate with the side of the synchronous gear 17 or the first bevel gear 21. Based on the above structure, Figure 5 In the state shown, the handle 11 is turned to drive the lower screw 10 to move leftward and the upper screw 10 to move rightward, so that the liquid food in the lower syringe 4 is squeezed into the patient's stomach through the stomach tube 6; at the same time, the upper syringe 4 sucks and fills the liquid food. Then the handle 11 is turned in the opposite direction, so that the liquid food in the upper syringe 4 is squeezed into the stomach and the lower syringe 4 is filled with liquid food at the same time, and this reciprocating process is repeated to achieve rapid, continuous and uniform feeding.

Claims

1. A medical care feeder, characterized in that: The invention comprises a base (8), a first baffle (7) and a seat plate (2) which are arranged on the base (8) at intervals, wherein the first baffle (7) is used for the front end of the barrel (402) of the syringe (4) to contact and for the injection nozzle (403) at the front end of the barrel (402) to leak out, and a nut (1) is provided on the seat plate (2), and a screw (10) is installed in the nut (1), and one end of the screw rod facing the first baffle (7) is used for pressing the push-pull handle (401) of the syringe (4), and one end of the screw rod (10) away from the first baffle (7) is provided with a handle (11) for a person to rotate the screw rod (10).

2. A medical care feeder as claimed in claim 1, characterized in that: A second baffle (13) and a slide plate (9) are sequentially arranged on the base (8) between the first baffle (7) and the seat plate (2); a placement cavity for placing the barrel (402) of the syringe (4) is formed between the second baffle (13) and the first baffle (7); a hole for the push-pull handle (401) to extend to the slide plate (9) is arranged on the second baffle (13); a slot (14) for clamping the end of the push-pull handle (401) is arranged on the slide plate (9); and the slide plate (9) is rotatably connected to the lead screw (10).

3. A medical care feeder as claimed in claim 1, characterized in that: A blind hole (12) is provided on the side of the seat plate (2) opposite to the first baffle plate (7), and the blind hole (12) is used for the nut (1) to be clamped and installed, and the nut (1) can be removed from the blind hole (12) under the action of external force.

4. A medical care feeder as claimed in claim 3, characterized in that: The shape of the blind hole (12) is a polygon, and the shape of the outer edge of the nut (1) is a corresponding polygon.

5. A medical care feeder as claimed in claim 3, characterized in that: A shifting plate (15) is provided on the lead screw (10) and is slidably sleeved between the seat plate (2) and the handle (11).

6. A medical care feeder according to any one of claims 1 to 5, characterized in that: It also includes a stomach tube (6), the front end of which is used to be inserted into the patient's stomach, and the rear end of which is connected to a liquid food container. The injection nozzle (403) is connected to the stomach tube (6) at a position close to the rear end of the stomach tube (6), and one-way valves (5) are respectively provided on both sides of the injection nozzle (403) on the stomach tube (6).

7. A medical care feeder as claimed in claim 2, characterized in that: The invention comprises two syringes (4) and two corresponding lead screws (10), two slide plates (9) and two screw nuts (1). The two lead screws (10) are respectively provided with synchronous gears (17) and the two synchronous gears (17) are meshedly connected so that the two lead screws (10) rotate synchronously and respectively cooperate with the corresponding screw nuts (1) to move synchronously in opposite directions, thereby alternately pushing and pulling the two push-pull handles (401) to achieve feeding with one syringe (4) and extracting liquid food with the other syringe (4).

8. A medical care feeder as claimed in claim 7, characterized in that: A gear box (19) for accommodating two synchronous gears (17) is fixedly provided on the base (8), and a first bevel gear (21) is rotatably provided in the gear box (19). The first bevel gear (21) is meshedly connected with a second bevel gear (20) provided on one of the lead screws (10), and the axle of the first bevel gear (21) passes through the gear box (19) and is connected to the handle (11).

9. A medical care feeder as claimed in claim 8, characterized in that: A sliding key is fixedly arranged in the center hole of the synchronous gear (17), and a keyway (23) cooperating with the sliding key is correspondingly arranged on the lead screw (10); a supporting mechanism for preventing the synchronous gear (17) from moving axially is arranged in the gear box (19).

10. A medical care feeder as claimed in claim 7, characterized in that: The two injection nozzles (403) are respectively connected to branch pipes (16), and one-way valves (5) are respectively provided on both sides of the two branch pipes (16) of the injection nozzles (403), and one end of the two branch pipes (16) is connected to the liquid food container, and the other end is connected to the stomach tube (6).

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