Self-control type negative pressure drainage tube

Abstract

The utility model relates to the technical field of medical instruments, in particular to a self-control type negative pressure drainage tube which comprises a liquid storage bottle, a bottle cap and a catheter. A bottle cap is installed at the top end of the liquid storage bottle in a buckled mode, a guide pipe is installed on one side of the upper portion of the bottle cap, and a main negative pressure pipe is installed on the other side of the upper portion of the bottle cap. The main negative pressure pipe is connected with the two auxiliary negative pressure pipes through the flow dividing pipe, and the auxiliary negative pressure pipes are sleeved with the adjusting valves. The adjusting valve comprises a valve seat, pressing blocks are installed on the outer walls of the two sides of the valve seat, and the pressing blocks are in sliding connection with the valve seat through sliding seats at the bottoms. Pipe sleeves are arranged on the two sides of the valve seat, and the pipe sleeves are connected with the auxiliary negative pressure pipe in a sleeving mode; by improving the self-control type negative pressure drainage tube, the self-control type negative pressure drainage tube has the advantages of being reasonable in structural design, convenient to mount, dismount, operate, control and adjust and high in practicability, and effectively solves the problems and defects in the prior art and equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a self-controlled negative pressure drainage tube. Background Art

[0002] A drainage tube is a medical device used for clinical surgical drainage to guide pus, blood, and fluid accumulated between human tissues or in body cavities to the outside of the body to prevent postoperative infection and promote wound healing.

[0003] Because many drainage tubes in clinical practice are installed with drainage balls or drainage bags, the negative pressure is relatively small and the drainage effect is poor. The purpose of placing drainage tubes in surgery is to drain blood, secretions, etc. out of the surgical cavity, which requires a larger negative pressure for drainage. Existing drainage devices are difficult to control the negative pressure and are inconvenient to operate.

[0004] In view of this, research and improvement are conducted on the existing problems, and a self-controlled negative pressure drainage tube is provided, aiming to solve the problems and improve the practical value through this technology. Utility Model Content

[0005] The purpose of the utility model is to provide a self-controlled negative pressure drainage tube to solve the problems and shortcomings raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides a self-controlled negative pressure drainage tube, which is achieved by the following specific technical means:

[0007] The self-controlled negative pressure drainage tube comprises: a liquid storage bottle, a bottle cap, a catheter, a main negative pressure tube, a shunt tube, a secondary negative pressure tube, a regulating valve, a valve seat, a pressure block, a sliding seat, a sleeve, an exhaust valve, a needle tube, a piston handle, a limit tube, a tube seat, a tube body, a limit ring, and a limit plate; the top of the liquid storage bottle is buckled and installed with a bottle cap, one side of the bottle cap is installed with a catheter, and the other side of the bottle cap is installed with a main negative pressure tube; the main negative pressure tube is connected to two secondary negative pressure tubes through a shunt tube, and a regulating valve is sleeved and installed on the secondary negative pressure tube; the regulating valve comprises a valve seat, and valves are installed on the outer walls on both sides of the valve seat There is a pressure block, and the pressure block is slidably connected to the valve seat through a sliding seat at the bottom; pipe sleeves are provided on both sides of the valve seat, and the pipe sleeves are sleeve-connected with the auxiliary negative pressure pipe; an exhaust valve is installed on the auxiliary negative pressure pipe, and one end of the auxiliary negative pressure pipe is connected to the needle tube; a piston handle is movably installed on the needle tube; the limiting tube is sleeve-mounted on the needle tube, and the limiting tube includes a tube seat sleeve-mounted on the needle tube; the tube body is sleeve-mounted on the tail of the needle tube, and the tube body is screwed and fixed with the tube seat; the limiting ring is arranged at one end of the tube body, and the limiting plate is arranged on the inner wall of the tube body, and the piston handle of the needle tube abuts against the limiting plate.

[0008] As a further optimization of the technical solution, the valve seat of the self-controlled negative pressure drainage tube of the utility model is an isosceles trapezoidal frame structure, and a serrated groove is provided on the outer wall of the valve seat.

[0009] As a further optimization of the technical solution, the pressure block of the self-controlled negative pressure drainage tube of the utility model is a semicircular block structure, and a serrated groove corresponding to the outer wall of the valve seat is provided on the inner wall of the pressure block.

[0010] As a further optimization of the technical solution, the sleeve of the self-controlled negative pressure drainage tube of the utility model is a tubular structure, and a slot hole for accommodating a pressure block is opened on the inner side wall of the sleeve.

[0011] As a further optimization of the technical solution, the tail end of the needle tube of the self-controlled negative pressure drainage tube of the utility model is provided with a paddle protruding outward, and a limiting ring abuts against the paddle.

[0012] As a further optimization of the technical solution, the end of the piston handle of the self-controlled negative pressure drainage tube of the utility model is an oblong plate-like structure.

[0013] As a further optimization of the technical solution, the tube body of the utility model self-controlled negative pressure drainage tube is a circular cylindrical structure, and arc-shaped grooves are opened on both sides of the tube body, and there are multiple limit plates evenly distributed on the inner walls of the other two sides of the tube body.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] 1. The valve seat of the utility model is an isosceles trapezoidal frame structure, and a serrated groove is provided on the outer wall of the valve seat. The pressure block is a semicircular block structure, and a serrated groove corresponding to the outer wall of the valve seat is provided on the inner wall of the pressure block. The pressure block enters the sleeve through the slot hole provided on the sleeve, and the negative pressure is adjusted by squeezing the auxiliary negative pressure pipe to achieve self-control of the negative pressure. The serrated grooves provided on the pressure block and the valve seat increase the friction force, and at the same time limit the pressure block to maintain the negative pressure.

[0016] 2. The tail end of the needle tube of the utility model is provided with a paddle protruding outward, and the limiting ring is arranged to abut against the paddle. The paddle is clamped by the tube seat and the limiting ring to fix the limiting tube to the tail of the needle tube, which is convenient for installation and disassembly and easy to operate.

[0017] 3. The end of the piston handle of the utility model is an oblong plate-like structure, the tube body is a circular cylindrical structure, and arc-shaped grooves are provided on both sides of the tube body, and the limit plates are evenly arranged in multiple places on the inner walls of the other two sides of the tube body. The grooves provided on both sides of the tube body allow the oblong piston handle to leak out of the tube body, which is convenient for the air extraction operation, and the oblong piston handle can abut against the limit plate on the inner wall of the tube body, which plays a limiting role on the piston handle and is convenient for controlling the size of the negative pressure.

[0018] 4. The utility model improves the self-controlled negative pressure drainage tube, has the advantages of reasonable structural design, convenient installation and disassembly, easy operation, easy control of negative pressure, easy adjustment, and strong practicality, thereby effectively solving the problems and shortcomings in the existing technology and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the regulating valve of the utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the regulating valve of the utility model;

[0023] Figure 4 It is a schematic diagram of the explosion structure of the limit tube of the utility model.

[0024] In the figure: liquid storage bottle 1, bottle cap 2, catheter 3, main negative pressure pipe 4, shunt pipe 5, auxiliary negative pressure pipe 6, regulating valve 7, valve seat 7.1, pressure block 7.2, slide seat 7.3, sleeve 7.4, exhaust valve 8, needle tube 9, piston handle 10, limit tube 11, tube seat 11.1, tube body 11.2, limit ring 11.3, limit plate 11.4. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figures 1 to 4 The utility model provides a specific technical implementation scheme of a self-controlled negative pressure drainage tube:

[0027] The self-controlled negative pressure drainage tube comprises: a liquid storage bottle 1, a bottle cap 2, a catheter 3, a main negative pressure tube 4, a shunt tube 5, an auxiliary negative pressure tube 6, a regulating valve 7, a valve seat 7.1, a pressure block 7.2, a sliding seat 7.3, a sleeve 7.4, an exhaust valve 8, a needle tube 9, a piston handle 10, a limit tube 11, a tube seat 11.1, a tube body 11.2, a limit ring 11.3, and a limit plate 11.4; the top of the liquid storage bottle 1 is buckled and installed with the bottle cap 2, the upper side of the bottle cap 2 is installed with the catheter 3, and the other side of the upper side of the bottle cap 2 is installed with the main negative pressure tube 4; the main negative pressure tube 4 is connected with two auxiliary negative pressure tubes 6 through the shunt tube 5, and the auxiliary negative pressure tubes 6 are connected with the main negative pressure tubes 4 through the shunt tube 5. 6 is sleeved with a regulating valve 7; the regulating valve 7 comprises a valve seat 7.1, which is an isosceles trapezoidal frame structure, and a serrated groove is provided on the outer wall of the valve seat 7.1, and a pressing block 7.2 is installed on the outer walls on both sides of the valve seat 7.1, and the pressing block 7.2 is a semicircular block structure, and a serrated groove corresponding to the outer wall of the valve seat 7.1 is provided on the inner wall of the pressing block 7.2, and the pressing block 7.2 is slidably connected with the valve seat 7.1 through a sliding seat 7.3 at the bottom, and the serrated grooves provided on the pressing block 7.2 and the valve seat 7.1 increase the friction force, and at the same time limit the pressing block 7.2 to maintain the size of the negative pressure.

[0028] A pipe sleeve 7.4 is provided on both sides of the valve seat 7.1. The sleeve 7.4 is a tubular structure, and a slot for accommodating a pressure block 7.2 is provided on the inner wall of the sleeve 7.4. The sleeve 7.4 is sleeve-connected with the auxiliary negative pressure pipe 6. The pressure block 7.2 enters the sleeve 7.4 through the slot provided on the sleeve 7.4. The negative pressure is adjusted by squeezing the auxiliary negative pressure pipe 6 to achieve self-control of the negative pressure.

[0029] An exhaust valve 8 is installed on the secondary negative pressure pipe 6, and one end of the secondary negative pressure pipe 6 is connected to a needle tube 9; a piston handle 10 is movably installed on the needle tube 9, and the end of the piston handle 10 is an oblong plate-like structure.

[0030] The limiting tube 11 is sleeved and installed on the needle tube 9, and the limiting tube 11 includes a tube seat 11.1 sleeved and installed on the needle tube 9; the tube body 11.2 is sleeved and installed on the tail of the needle tube 9, and the tube body 11.2 is screwed and fixed to the tube seat 11.1. The tube body 11.2 is a circular cylindrical structure, and arc-shaped grooves are provided on both sides of the tube body 11.2. The grooves provided on both sides of the tube body 11.2 allow the oblong piston handle 10 to leak out of the tube body, which is convenient for the air extraction operation.

[0031] The limiting ring 11.3 is arranged at one end of the tube body 11.2, and the tail end of the needle tube 9 is provided with a paddle protruding outward, and the limiting ring 11.3 abuts against the paddle, and the paddle is clamped by the tube seat 11.1 and the limiting ring 11.3 to fix the limiting tube 11 to the tail of the needle tube 9, which is convenient for installation and disassembly and easy to operate.

[0032] The limiting plates 11.4 are evenly distributed on the inner walls of the other two sides of the tube body 11.2, and the piston handle 10 of the needle tube 9 abuts against the limiting plates 11.4. The piston handle 10 can abut against the limiting plates 11.4 on the inner wall of the tube body 11.2, which plays a limiting role on the piston handle 10 and facilitates the control of the negative pressure.

[0033] Specific implementation steps:

[0034] When in use, the catheter 3 is inserted into the patient's body for drainage. When the negative pressure is small, the piston handle 10 can be drawn outward, the needle tube 9 draws air and generates negative pressure, and then the piston handle 10 is rotated to make the piston handle 10 abut against the limit plate 11.4 to limit and fix the piston handle 10, and the negative pressure can be adjusted by the pressure blocks 7.2 on both sides of the regulating valve 7. The pressure block 7.2 is pressed downward, and the pressure block 7.2 squeezes the auxiliary negative pressure pipe 6 to adjust the negative pressure size, and the pressure block 7.2 can be limited by the serrated grooves on the valve seat 7.1 and the pressure block 7.2; after the negative pressure disappears, the auxiliary negative pressure pipe 6 can be closed by the pressure block 7.2, and then the exhaust valve 8 is opened, the piston handle 10 is pushed back into the needle tube 9, and then the exhaust valve 8 is closed, the auxiliary negative pressure pipe 6 is opened, and the piston handle 10 is continued to be drawn outward to form negative pressure again.

[0035] To sum up: the self-controlled negative pressure drainage tube has an isosceles trapezoidal frame structure through the valve seat, and a serrated groove is provided on the outer wall of the valve seat. The pressure block is a semicircular block structure, and a serrated groove corresponding to the outer wall of the valve seat is provided on the inner wall of the pressure block. The pressure block enters the sleeve through the slot hole provided on the sleeve, and the negative pressure is adjusted by squeezing the auxiliary negative pressure tube to achieve self-control of the negative pressure. The serrated grooves provided on the pressure block and the valve seat increase the friction force and at the same time limit the pressure block to maintain the negative pressure. A paddle protruding outward is provided at the tail end of the needle tube, and a limit ring is abutted against the paddle. The paddle is clamped by the tube seat and the limit ring to fix the limit tube to the tail of the needle tube, which is convenient for installation and The utility model is easy to disassemble and operate; the end of the piston handle is an oblong plate-shaped structure, the tube body is a circular cylindrical structure, and arc-shaped grooves are provided on both sides of the tube body, and the limit plates are evenly arranged on the inner walls of the other two sides of the tube body. The grooves provided on both sides of the tube body enable the oblong piston handle to leak out of the tube body, which is convenient for the vacuum operation, and the oblong piston handle can abut against the limit plate on the inner wall of the tube body, which plays a limiting role on the piston handle and is convenient for controlling the size of the negative pressure; through the improvement of the self-controlled negative pressure drainage tube, it has the advantages of reasonable structural design, convenient installation and disassembly, easy operation, easy control of the size of the negative pressure, easy adjustment, and strong practicality, thereby effectively solving the problems and shortcomings in the existing technology and equipment.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Self-controlled negative pressure drainage tube, including: A liquid storage bottle (1), a bottle cap (2), a catheter (3), a main negative pressure pipe (4), a shunt pipe (5), a secondary negative pressure pipe (6), a regulating valve (7), a valve seat (7.1), a pressure block (7.2), a sliding seat (7.3), a sleeve (7.4), an exhaust valve (8), a needle tube (9), a piston handle (10), a limit tube (11), a tube seat (11.1), a tube body (11.2), a limit ring (11.3), and a limit plate (11.4); characterized in that: the storage A bottle cap (2) is buckled and installed at the top of the liquid bottle (1); a guide tube (3) is installed on one side above the bottle cap (2); and a main negative pressure pipe (4) is installed on the other side above the bottle cap (2); the main negative pressure pipe (4) is connected to two auxiliary negative pressure pipes (6) through a shunt pipe (5), and a regulating valve (7) is sleeved and installed on the auxiliary negative pressure pipe (6); the regulating valve (7) comprises a valve seat (7.1), and pressure blocks (7.2) are installed on the outer walls of both sides of the valve seat (7.1). , and the pressure block (7.2) is slidably connected to the valve seat (7.1) through a sliding seat (7.3) at the bottom; sleeves (7.4) are provided on both sides of the valve seat (7.1), and the sleeves (7.4) are sleeve-connected with the auxiliary negative pressure pipe (6); an exhaust valve (8) is installed on the auxiliary negative pressure pipe (6), and one end of the auxiliary negative pressure pipe (6) is connected to the needle tube (9); a piston handle (10) is movably installed on the needle tube (9); the limit tube (11) is sleeve-connected with the needle tube (9) The limiting tube (11) comprises a tube seat (11.1) sleeved and mounted on the needle tube (9); the tube body (11.2) is sleeved and mounted on the tail of the needle tube (9), and the tube body (11.2) and the tube seat (11.1) are screwed and fixed; the limiting ring (11.3) is arranged at one end of the tube body (11.2), and the limiting plate (11.4) is arranged on the inner wall of the tube body (11.2), and the piston handle (10) of the needle tube (9) is in contact with the limiting plate (11.4).

2. The self-controlled negative pressure drainage tube according to claim 1, characterized in that: The valve seat (7.1) is an isosceles trapezoidal frame structure, and a sawtooth groove is provided on the outer wall of the valve seat (7.1).

3. The self-controlled negative pressure drainage tube according to claim 2, characterized in that: The pressing block (7.2) is a semicircular block structure, and a sawtooth groove corresponding to the outer wall of the valve seat (7.1) is provided on the inner wall of the pressing block (7.2).

4. The self-controlled negative pressure drainage tube according to claim 1, characterized in that: The sleeve (7.4) is a tubular structure, and a slot hole for accommodating a pressing block (7.2) is provided on the inner side wall of the sleeve (7.4).

5. The self-controlled negative pressure drainage tube according to claim 1, characterized in that: The tail end of the needle tube (9) is provided with a paddle protruding outward, and the limiting ring (11.3) abuts against the paddle.

6. The self-controlled negative pressure drainage tube according to claim 1, characterized in that: The end of the piston handle (10) is an oblong plate-shaped structure.

7. The self-controlled negative pressure drainage tube according to claim 1, characterized in that: The tube body (11.2) is a circular cylindrical structure, and arc-shaped grooves are provided on both sides of the tube body (11.2), and the limiting plates (11.4) are evenly distributed at multiple locations on the inner walls of the other two sides of the tube body (11.2).

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