Expansion balloon pump for mouse viscera

Abstract

The utility model relates to the technical field of medical instruments, in particular to an expansion balloon pump for mouse viscera, which comprises a pump body, a first partition plate and a second partition plate are respectively and fixedly mounted in an inner cavity of the pump body, the first partition plate divides the inner cavity of the pump body into a pressure maintaining cavity and an air injection cavity, and the second partition plate divides the pressure maintaining cavity into a first chamber and a second chamber. Two connector pipes are fixedly installed on the surface of the pump body and communicate with the first cavity and the second cavity correspondingly, and three pressure gauges are installed on the surface of the pump body. The first chamber and the second chamber are arranged in the pump body and communicated with the two connector pipes, the in-vitro reference balloon and the in-vivo expansion balloon can be installed on the two connector pipes respectively, air is injected into the first chamber and the second chamber, pressure maintaining is conducted on the first chamber and the second chamber, the in-vitro reference balloon and the in-vivo expansion balloon are both expanded, and then the pressure change of the in-vitro reference balloon and the in-vivo expansion balloon can be observed through the pressure gauge. Therefore, the effect of injecting air into the double-dilatation balloon is achieved, an in-vitro reference object is provided for detection, and use is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a balloon pump for expanding mouse viscera. Background Art

[0002] In studying irritable bowel syndrome, a dilatation balloon is placed in the colorectum of mice, and the animal's reaction is observed by increasing the balloon pressure to evaluate the visceral sensitivity. In the prior art, the announcement number is CN215078359U, which discloses a dilatation balloon for evaluating the hypersensitivity of visceral organs in young mice, including a dilatation catheter and a balloon, the balloon diameter is between 2.5 mm and 3.5 mm, the balloon is sleeved on the end of the dilatation catheter and fixed to the dilatation catheter by a fastener, and the end of the dilatation catheter is connected to an air intake and pressure display device by a connector; the announcement number is CN115089850A, which discloses a new type of balloon dilatation pressure pump, including a cylinder, a mounting tube and a gas supply connector; A piston plate is slidably provided inside the cylinder, one end of the piston plate is connected to a piston rod, and the other end of the piston rod movably passes through the side wall of the cylinder and is connected to a push plate; an external through pipe and an air inlet pipe are respectively connected at both ends of the cylinder, and a one-way valve C is installed on the air inlet pipe; an air supply pipe A is connected between the end of the cylinder away from the external through pipe and the mounting pipe, a one-way valve B is installed on the air supply pipe A, and the other end of the mounting pipe is connected to the air supply connector with the air supply pipe B; a cylindrical piston is slidably provided inside the mounting pipe, a vent hole is opened on the cylindrical piston, a spring is provided on the inner side of the mounting pipe, a vent pipe is connected between the end of the mounting pipe away from the spring and the air supply pipe A, and a one-way valve A is installed on the vent pipe.

[0003] Since existing expansion balloon pumps all have a single injection channel, it is not convenient to inflate two expansion balloons at the same time, that is, to inflate the detection expansion balloon placed in the body and the reference expansion balloon placed outside the body, which is not conducive to user operation and needs further improvement. Utility Model Content

[0004] The utility model aims to provide a balloon pump for expanding mouse viscera to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a balloon pump for expanding mouse viscera, comprising a pump body, wherein the inner cavity of the pump body is fixedly installed with a first partition and a second partition, the first partition divides the inner cavity of the pump body into a pressure-maintaining chamber and an air injection chamber, the second partition divides the pressure-maintaining chamber into a first chamber and a second chamber, two connecting pipes are fixedly installed on the surface of the pump body, the two connecting pipes are connected to the first chamber and the second chamber respectively, and three pressure gauges are installed on the surface of the pump body, and the three pressure gauges respectively detect the air pressure of the first chamber, the second chamber and the air injection chamber.

[0006] Two connecting ports are provided on the first partition plate, and the air injection cavity is connected with the first chamber and the second chamber respectively through the two connecting ports. One-way blocking balls are arranged in the two connecting ports, and two independent elastic adjustment components are arranged in the pump body, and the one-way blocking balls are pressed tightly in the connecting ports through the elastic adjustment components.

[0007] An air injection cylinder is fixedly installed on the side of the pump body, a piston disk is slidably installed inside the air injection cylinder, a handle is fixedly installed on the top of the air injection cylinder, a push rod is slidably inserted in the handle, the bottom end of the push rod is fixedly connected to the piston disk, the bottom end of the air injection cavity is connected to the air injection cavity, the first chamber and the second chamber have the functions of injecting air and maintaining pressure, and the two connecting tubes can be used to install an in vitro reference balloon and an in vivo expansion balloon respectively, thereby achieving the effect of injecting air into the double expansion balloons.

[0008] Preferably, the two joint tubes are respectively threadedly connected with a detection catheter and an in vitro reference balloon, an in vivo expansion balloon is fixedly mounted on one end of the detection catheter away from the pump body, and the in vitro reference balloon and the in vivo expansion balloon are in parallel relationship.

[0009] Preferably, two threaded mounting holes are provided on the upper side of the pump body, the two threaded mounting holes are respectively connected to the first chamber and the second chamber, and sealing plugs are threadedly mounted on the two threaded mounting openings.

[0010] Preferably, the elastic adjustment component includes a threaded plug threadedly installed in the threaded mounting hole, a guide column is fixedly installed on the bottom end of the threaded plug, a sliding sleeve is fixedly installed on the surface of the one-way blocking ball, the sliding sleeve is arranged on the moving surface of the guide column, and a clamping spring is arranged on the surface of the guide column, and the two ends of the clamping spring respectively press against the threaded plug and the sliding sleeve, so as to facilitate the correction of the clamping force on the one-way blocking ball by screwing in or out the threaded plug.

[0011] Preferably, a threaded rod is rotatably installed on the upper end of the handle, the top end of the threaded rod extends to the outside of the handle and is fixedly installed with a knob, the bottom end of the threaded rod is threadedly inserted into the inside of the push rod, the surface of the push rod has a hexagonal structure, and a hexagonal hole is opened inside the handle. The push rod is slidably installed in the hexagonal hole, which is convenient for one-handed operation of the gas injection cylinder.

[0012] Preferably, a mounting plate is slidably installed inside the air injection chamber, a pressure relief push rod is fixedly installed on the upper surface of the mounting plate, the top ends of the two pressure relief push rods extend into the two connecting ports respectively, a return spring for pressing the mounting plate downward is fixedly installed on the lower surface of the first partition plate, an adjusting bolt is threadedly inserted on the lower surface of the pump body, a rubber diaphragm is fixedly installed inside the air injection chamber, the end of the adjusting bolt presses against the rubber diaphragm so that the rubber diaphragm protrudes upward and is in close contact with the lower surface of the mounting plate, making it convenient to push open the one-way blocking ball to perform the air deflation operation of the pressure maintaining chamber.

[0013] The beneficial effects of the utility model are as follows: by setting the first chamber and the second chamber in the pump body and connecting them with two joint tubes, the two joint tubes can be respectively installed with an in vitro reference balloon and an in vivo expansion balloon, injecting air into the first chamber and the second chamber and maintaining pressure, the in vitro reference balloon and the in vivo expansion balloon are both expanded, and then the pressure changes can be observed through a pressure gauge, thereby achieving the effect of gas injection into the double expansion balloons, providing an in vitro reference for detection, and being more convenient to use. By setting a threaded rod in the handle, the rotation of the threaded rod drives the push rod to press the piston disk, so that the device can be operated by one hand for gas injection, and by setting two pressure relief push rods in the pump body, the one-way blocking ball can be opened by rotating the adjusting bolt through the pressure relief push rod, and the first chamber and the second chamber are quickly exhausted, so that the in vivo expansion balloon can be easily removed from the animal body, and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0016] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 This is a front view structural schematic diagram of the utility model.

[0018] In the figure: 1. pump body; 2. first partition; 3. second partition; 4. gas injection cavity; 5. first chamber; 6. second chamber; 7. connecting pipe; 8. pressure gauge; 9. connecting port; 10. one-way blocking ball; 11. gas injection cylinder; 12. piston disk; 13. handle; 14. push rod; 15. in vitro reference balloon; 16. in vivo expansion balloon; 17. sealing plug; 18. threaded plug; 19. guide column; 20. sliding sleeve; 21. compression spring; 22. threaded rod; 23. pressure relief push rod; 24. reset spring; 25. adjusting bolt; 26. rubber diaphragm. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] according to Figure 1 , Figure 2 , Figure 3 As shown, a balloon pump for expanding mouse viscera comprises a pump body 1, the inner cavity of the pump body 1 is respectively fixedly mounted with a first partition plate 2 and a second partition plate 3, the first partition plate 2 divides the inner cavity of the pump body 1 into a pressure-maintaining cavity and an air injection cavity 4, the second partition plate 3 divides the pressure-maintaining cavity into a first chamber 5 and a second chamber 6, two joint pipes 7 are respectively fixedly mounted on the surface of the pump body 1, the two joint pipes 7 are respectively connected with the first chamber 5 and the second chamber 6, three pressure gauges 8 are mounted on the surface of the pump body 1, and the three pressure gauges 8 respectively detect the air pressures of the first chamber 5, the second chamber 6 and the air injection cavity 4;

[0021] The two joint tubes 7 are respectively threadedly connected with a detection catheter and an in vitro reference balloon 15 , and an in vivo expansion balloon 16 is fixedly mounted on one end of the detection catheter away from the pump body 1 .

[0022] Two connecting ports 9 are provided on the first partition plate 2, and the air injection cavity 4 is connected with the first chamber 5 and the second chamber 6 respectively through the two connecting ports 9. One-way blocking balls 10 are arranged in the two connecting ports 9, and two independent elastic adjustment components are arranged in the pump body 1, and the one-way blocking balls 10 are pressed tightly in the connecting ports 9 through the elastic adjustment components.

[0023] Two threaded mounting holes are provided on the upper side of the pump body 1 , and the two threaded mounting holes are communicated with the first chamber 5 and the second chamber 6 respectively. Sealing plugs 17 are threadedly mounted on the two threaded mounting ports.

[0024] The elastic adjustment component includes a threaded plug 18 threadedly installed in a threaded mounting hole, a guide column 19 is fixedly installed on the bottom end of the threaded plug 18, a sliding sleeve 20 is fixedly installed on the surface of the one-way blocking ball 10, the sliding sleeve 20 is sleeved on the moving surface of the guide column 19, a clamping spring 21 is sleeved on the surface of the guide column 19, and the two ends of the clamping spring 21 are respectively pressed against the threaded plug 18 and the sliding sleeve 20. The threaded plug 18 is rotated to correct and change the compression amount of the clamping spring 21, so as to adjust the clamping force of the one-way blocking balls 10 on both sides.

[0025] A gas injection cylinder 11 is fixedly installed on the side of the pump body 1, and a piston disk 12 is slidably installed inside the gas injection cylinder 11. A handle 13 is fixedly installed on the top of the gas injection cylinder 11, and a push rod 14 is slidably inserted in the handle 13. The surface of the push rod 14 is a hexagonal structure, and a hexagonal hole is opened inside the handle 13. The push rod 14 is slidably installed in the hexagonal hole. The bottom end of the push rod 14 is fixedly connected to the piston disk 12, and the bottom end of the gas injection chamber 4 is connected to the gas injection chamber 4, wherein a threaded rod 22 is rotatably installed on the upper end of the handle 13, and the top end of the threaded rod 22 extends to the outside of the handle 13 and is fixedly installed with a knob, and the bottom end of the threaded rod 22 is threadedly inserted in the inside of the push rod 14, and by arranging the threaded rod 22 in the handle 13, the rotation of the threaded rod 22 drives the push rod 14 to press against the piston disk 12, so that the device can perform gas injection operation with one hand.

[0026] During use, the in vivo expansion balloon 16 is inserted into the animal body, and the threaded rod 22 is rotated to make the piston disk 12 compress the air in the air injection cylinder 11, and the air is pressed into the air injection cavity 4. The air pressure pushes open the one-way blocking ball 10, allowing the air to enter the first chamber 5 and the second chamber 6. Under the pressing force of the compression spring 21, the one-way blocking ball 10 blocks the connecting port 9 to prevent the air from flowing back. After the air pressure in the first chamber 5 and the second chamber 6 increases, the in vitro reference balloon 15 and the in vivo expansion balloon 16 are both expanded, and the three pressure gauges 8 are used to detect the air pressure changes in each chamber respectively, so as to observe the changing law of the reverse force of the internal organs on the in vivo expansion balloon 16 in the animal body and detect the sensitivity of the internal organs.

[0027] A mounting plate is slidably installed inside the air injection chamber 4, and a pressure relief push rod 23 is fixedly installed on the upper surface of the mounting plate. The top ends of the two pressure relief push rods 23 extend into the two connecting ports 9 respectively. A return spring 24 for pressing the mounting plate downward is fixedly installed on the lower surface of the first partition plate 2. An adjusting bolt 25 is threadedly inserted on the lower surface of the pump body 1. A rubber diaphragm 26 is fixedly installed inside the air injection chamber 4. The end of the adjusting bolt 25 presses against the rubber diaphragm 26 so that the rubber diaphragm 26 protrudes upward and fits tightly against the lower surface of the mounting plate. By arranging two pressure relief push rods 23 in the pump body 1, after use, the adjusting bolt 25 can be rotated to lift the pressure relief push rod 23, thereby opening the one-way blocking ball 10, and quickly exhausting the first chamber 5 and the second chamber 6, so as to facilitate the removal of the in vivo expansion balloon 16 from the animal body.

[0028] The expansion balloon pump for mouse viscera is provided with a first chamber 5 and a second chamber 6 in a pump body 1, and the pump body 1 is connected with two joint tubes 7. The two joint tubes 7 can be respectively installed with an in vitro reference balloon 15 and an in vivo expansion balloon 16. Air is injected into the first chamber 5 and the second chamber 6 and pressure is maintained. The in vitro reference balloon 15 and the in vivo expansion balloon 16 are both expanded. Then, the pressure change thereof can be observed through a pressure gauge 8, thereby achieving the effect of air injection into the double expansion balloons, providing an in vitro reference balloon for detection, and being more convenient to use.

[0029] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A balloon pump for expanding mouse viscera, comprising a pump body (1), characterized in that: The inner cavity of the pump body (1) is respectively fixedly mounted with a first partition plate (2) and a second partition plate (3); the first partition plate (2) divides the inner cavity of the pump body (1) into a pressure-maintaining cavity and an air injection cavity (4); the second partition plate (3) divides the pressure-maintaining cavity into a first chamber (5) and a second chamber (6); two joint pipes (7) are respectively fixedly mounted on the surface of the pump body (1); the two joint pipes (7) are respectively connected to the first chamber (5) and the second chamber (6); three pressure gauges (8) are mounted on the surface of the pump body (1); the three pressure gauges (8) respectively detect the air pressures of the first chamber (5), the second chamber (6) and the air injection cavity (4); Two communication ports (9) are provided on the first partition plate (2), and the gas injection cavity (4) is respectively connected with the first chamber (5) and the second chamber (6) through the two communication ports (9), and one-way blocking balls (10) are arranged in the two communication ports (9). Two independent elastic adjustment components are arranged in the pump body (1), and the one-way blocking balls (10) are pressed tightly in the communication ports (9) through the elastic adjustment components; An air injection cylinder (11) is fixedly mounted on the side of the pump body (1), a piston disc (12) is slidably mounted inside the air injection cylinder (11), a handle (13) is fixedly mounted on the top of the air injection cylinder (11), a push rod (14) is slidably inserted in the handle (13), the bottom end of the push rod (14) is fixedly connected to the piston disc (12), and the bottom end of the air injection cavity (4) is connected to the air injection cavity (4).

2. The balloon pump for expanding mouse viscera according to claim 1, characterized in that: The two joint tubes (7) are respectively threadedly connected with a detection catheter and an in vitro reference balloon (15); an in vivo expansion balloon (16) is fixedly mounted on one end of the detection catheter away from the pump body (1).

3. The balloon pump for expanding mouse viscera according to claim 2, characterized in that: The upper side of the pump body (1) is provided with two threaded mounting holes, which are respectively connected to the first chamber (5) and the second chamber (6), and the two threaded mounting openings are threadedly mounted with sealing plugs (17).

4. The balloon pump for expanding mouse viscera according to claim 3, characterized in that: The elastic adjustment component comprises a threaded plug (18) threadedly installed in a threaded installation hole, a guide column (19) is fixedly installed on the bottom end of the threaded plug (18), a sliding sleeve (20) is fixedly installed on the surface of the one-way blocking ball (10), the sliding sleeve (20) is sleeved on the movable surface of the guide column (19), a clamping spring (21) is sleeved on the surface of the guide column (19), and the two ends of the clamping spring (21) respectively press against the threaded plug (18) and the sliding sleeve (20).

5. The balloon pump for expanding mouse viscera according to claim 4, characterized in that: A threaded rod (22) is rotatably mounted on the upper end of the handle (13), the top end of the threaded rod (22) extends to the outside of the handle (13) and is fixedly mounted with a knob, and the bottom end of the threaded rod (22) is threadedly inserted into the interior of the push rod (14).

6. A balloon pump for expanding mouse viscera according to any one of claims 1 to 5, characterized in that: The surface of the push rod (14) is a hexagonal structure, and a hexagonal hole is provided inside the handle (13), and the push rod (14) is slidably installed in the hexagonal hole.

7. The balloon pump for expanding mouse viscera according to claim 6, characterized in that: A mounting plate is slidably mounted inside the gas injection cavity (4), a pressure relief push rod (23) is fixedly mounted on the upper surface of the mounting plate, the top ends of the two pressure relief push rods (23) respectively extend into the two connecting ports (9), and a return spring (24) is fixedly mounted on the lower surface of the first partition plate (2) for pressing the mounting plate downward.

8. The balloon pump for expanding mouse viscera according to claim 7, characterized in that: An adjusting bolt (25) is threadedly inserted into the lower surface of the pump body (1), a rubber diaphragm (26) is fixedly installed inside the air injection cavity (4), and the end of the adjusting bolt (25) is pressed against the rubber diaphragm (26), so that the rubber diaphragm (26) protrudes upward and is in close contact with the lower surface of the mounting plate.

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