Gastrointestinal decompression drainage device and drainage method

Abstract

The invention relates to the technical field of drainage devices, and discloses a gastrointestinal decompression drainage device and a drainage method.The gastrointestinal decompression drainage device comprises a drainage tube and a liquid collecting box connected to the bottom end of the drainage tube, the bottom end of the drainage tube extends into the liquid collecting box, and the gastrointestinal decompression drainage device further comprises a negative pressure cylinder, a drainage tube and a drainage tube, the bottom of the piston is supported through an elastic supporting mechanism. The air inlet pipe is communicated with the bottom of the negative pressure cylinder and extends into the liquid collecting box, and a one-way air inlet valve is further mounted on the air inlet pipe; after the piston moves to the lower portion of the negative pressure cylinder and compresses the elastic supporting mechanism, the piston can slowly move upwards in the negative pressure cylinder so as to continuously generate negative pressure. According to the gastrointestinal decompression drainage device, negative pressure is continuously generated in the liquid collecting box in the mode that the piston slowly moves upwards, the problems that a traditional drainage bottle is weak in suction force and complex in operation are solved, electrical equipment such as a negative pressure pump which is high in cost and complex in structure does not need to be used, and continuous and stable negative pressure drainage can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of drainage devices, in particular to a gastrointestinal decompression drainage device and a drainage method. Background Art

[0002] Patients with gastric cancer usually need gastrointestinal decompression and drainage after surgery to prevent postoperative complications such as flatulence, vomiting, abdominal distension, etc. Traditional gastrointestinal decompression methods mainly rely on drainage devices such as gastric tubes, which discharge the contents of the stomach through gravity or low negative pressure suction, reduce the burden on the gastrointestinal tract and promote recovery.

[0003] However, for patients whose gastrointestinal function recovers slowly or is affected by surgery, traditional drainage methods may not be able to effectively remove gas and fluid in the stomach, resulting in persistent discomfort symptoms such as gastrointestinal bloating and postoperative vomiting, and may even cause gastrointestinal obstruction or other complications, which significantly prolongs the postoperative recovery time and delays the patient's rehabilitation process.

[0004] In addition, when the intragastric pressure is high, the liquid is viscous, or the gastrointestinal function is not fully recovered, the drainage effect of existing drainage devices is often not stable enough, and problems such as poor drainage, insufficient drainage, or excessive drainage may occur. Therefore, for decompression drainage of patients after gastric cancer surgery, a continuous, stable, and controllable negative pressure of the drainage device is very necessary, which can effectively help remove gas and liquid in the stomach, relieve postoperative symptoms, promote gastrointestinal function recovery, and reduce the occurrence of postoperative complications. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides a gastrointestinal decompression drainage device and a drainage method, which have the advantage of being able to provide continuous, stable and controllable negative pressure.

[0006] (II) Technical solution In order to achieve the above-mentioned purpose of providing continuous, stable and controllable negative pressure, the present invention provides the following technical solution: a pressurized suction device, comprising a drainage tube and a liquid collecting box connected to the bottom end of the drainage tube, wherein the bottom end of the drainage tube extends into the liquid collecting box, and further comprising: The negative pressure cylinder is fixedly mounted on the top of the liquid collecting tank, and a piston is provided inside the cylinder so as to move up and down, and the bottom of the piston is supported by an elastic supporting mechanism; An air inlet pipe is connected to the bottom of the negative pressure cylinder and extends to the liquid collecting tank. A one-way air inlet valve is also installed on the air inlet pipe; An exhaust pipe is connected to the outer wall of the bottom of the negative pressure cylinder, and a one-way exhaust valve is installed on the exhaust pipe; After the piston moves to the lower position of the negative pressure cylinder and compresses the elastic supporting mechanism, it can slowly move upward in the negative pressure cylinder to continuously generate negative pressure.

[0007] As a preferred technical solution of the present invention, a pressure rod is fixedly installed on the top of the piston, and the top end of the pressure rod extends to the outside of the negative pressure cylinder and is fixedly connected to a pressure plate.

[0008] As a preferred technical solution of the present invention, a filter is also installed at the end of the exhaust pipe.

[0009] As a preferred technical solution of the present invention, it also includes a support ring, which is movably arranged in the negative pressure cylinder up and down, and the elastic support mechanism is fixedly arranged between the top of the support ring and the bottom of the piston.

[0010] As a preferred technical solution of the present invention, it also includes a nut, which is fixedly installed at the bottom of the negative pressure cylinder, and the inner wall of the nut is threadedly connected with a screw, one end of the screw is rotatably connected to the support ring, and the other end is fixedly connected to a handle; A sliding plate is fixedly mounted on the outer wall of the supporting ring, and the sliding plate is slidably arranged in a sliding groove opened on the inner wall of the negative pressure cylinder.

[0011] As a preferred technical solution of the present invention, the top of the negative pressure cylinder is connected to the pulsation sleeve through a connecting pipe, and the pulsation sleeve is an annular air bag, which is sleeved on the drainage tube; The upper portion of the piston is filled with a filling fluid.

[0012] As a preferred technical solution of the present invention, the connecting tube is composed of a capillary tube and a liquid supply tube connected to each other, and the capillary tube is connected to the outer wall of the top of the negative pressure cylinder.

[0013] As a preferred technical solution of the present invention, the inner wall of the pulsation sleeve is also raised to form convex points.

[0014] As a preferred technical solution of the present invention, it also includes a liquid return pipe connected between the top of the negative pressure cylinder and the pulsation sleeve, and a solenoid valve for controlling the on-off of the pipeline is installed on the liquid return pipe.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides a gastrointestinal decompression drainage device, which has the following beneficial effects: 1. The gastrointestinal decompression drainage device continuously generates negative pressure in the liquid collection box by slowly moving the piston upward, avoiding the problems of weak suction and complicated operation of traditional drainage bottles, and does not require the use of high-cost and complex electrical equipment such as negative pressure pumps, and can achieve continuous and stable negative pressure drainage.

[0016] 2. The gastrointestinal decompression drainage device can control the supporting force of the elastic supporting mechanism and the upward movement speed of the piston through the support ring that can adjust the upper and lower positions, thereby controlling the size of the negative pressure, achieving the purpose of controllable negative pressure, and solving the problem of uncontrollable size of the traditional gravity drainage method.

[0017] 3. The pressure rod and the pressure plate of the gastrointestinal decompression drainage device are fixedly installed on the top of the piston, which is convenient for the staff to press down the piston. The operation is simple and convenient, and the use effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 It is a front cross-sectional view of the negative pressure cylinder part of the present invention; Figure 4 It is a cross-sectional view of a negative pressure cylinder part in another embodiment of the present invention; Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle; Figure 6 It is a cross-sectional view of the pulsation casing part of the present invention; Figure 7 It is a cross-sectional view of another form of the pulsation sleeve of the present invention.

[0019] In the figure: 1. drainage tube; 2. liquid collecting box; 3. negative pressure cylinder; 4. piston; 5. elastic support mechanism; 6. pressure rod; 7. pressure plate; 8. air inlet pipe; 9. exhaust pipe; 10. filter; 11. support ring; 12. nut; 13. screw; 14. pulsation sleeve; 15. rubber ring; 16. capillary tube; 17. liquid supply pipe; 18. bump; 19. liquid return pipe; 20. solenoid valve; 21. push switch. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1: See also Figure 1-Figure 3 A gastrointestinal decompression drainage device comprises a drainage tube 1 and a liquid collecting box 2 connected to the bottom end of the drainage tube 1. The bottom end of the drainage tube 1 is as shown in FIG. Figure 2 The state shown extends to the liquid collecting box 2, the drainage tube 1 is used for drainage, and the liquid collecting box 2 is used for collecting drainage fluid.

[0022] In this embodiment, a negative pressure cylinder 3 is fixedly installed on the top of the liquid collecting box 2. Figure 3As shown, a piston 4 is movably arranged inside the negative pressure cylinder 3, and the bottom of the piston 4 is supported by an elastic support mechanism 5. In addition, an air intake pipe 8 is connected to the bottom of the negative pressure cylinder 3, and the bottom end of the air intake pipe 8 extends into the liquid collecting tank 2, and a one-way air intake valve is also installed thereon. When the piston 4 moves upward, the air intake pipe 8 is used for air intake; An exhaust pipe 9 is connected to the outer wall of the bottom of the negative pressure cylinder 3, and a one-way exhaust valve is installed on the exhaust pipe 9. When the piston 4 moves downward, the exhaust pipe 9 is used to exhaust air. Figure 3 As shown, a filter 10 is also installed at the end of the exhaust pipe 9 for filtering the exhaust gas to ensure the cleanliness of the exhaust gas and prevent pollution of the environment or equipment. The filter 10 can specifically directly use the filtering equipment in the prior art.

[0023] In the present invention, after the piston 4 moves to the lower position of the negative pressure cylinder 3 and compresses the elastic supporting mechanism 5, it can slowly move upward in the negative pressure cylinder 3 to continuously generate negative pressure. By slowly moving the piston 4 upward, negative pressure is continuously generated in the liquid collecting box 2, which avoids the problems of weak suction and complicated operation of traditional drainage bottles, and at the same time, there is no need to use high-cost and complex electrical equipment such as negative pressure pumps, and continuous and smooth negative pressure drainage can be achieved. After the piston 4 moves up to the end position, the piston 4 can be pushed down again.

[0024] like Figure 2 As shown, a pressure rod 6 is fixedly installed on the top of the piston 4. The top end of the pressure rod 6 extends to the outside of the negative pressure cylinder 3 and is fixedly connected to a pressure plate 7. The staff can press down the piston 4 by pushing the pressure plate 7 by hand. The operation is simple and convenient, and the use effect is improved.

[0025] like Figure 3 As shown, a support ring 11 is also provided, which is movably arranged up and down in the negative pressure cylinder 3, and the elastic support mechanism 5 is fixedly arranged between the top of the support ring 11 and the bottom of the piston 4. By adjusting the up and down positions of the support ring 11, the initial compression degree of the elastic support mechanism 5 can be controlled, and then the supporting force of the elastic support mechanism 5 and the upward movement speed of the piston 4 can be controlled. Through the upward movement speed of the piston 4, the size of the negative pressure is also controlled, thereby achieving the purpose of controllable negative pressure and solving the problem of uncontrollable size of the traditional gravity drainage method.

[0026] In this embodiment, the elastic support mechanism 5 can be directly used as follows Figure 3 The ordinary spring shown cooperates with the support ring 11 to achieve the effect of controllable negative pressure.

[0027] In practical applications, constant force springs, gas springs, hydraulic springs, etc. may also be used to ensure that the supporting force of the elastic supporting mechanism 5 is constant when the elastic supporting mechanism 5 recovers its deformation.

[0028] The slow upward movement of the piston 4 in the negative pressure cylinder 3 can be achieved by adding damping to the upward movement of the piston 4, and the damping can be configured as needed; when using an ordinary spring, although the elastic force of the ordinary spring varies, the addition of damping can also effectively control the upward movement speed of the piston 4, thereby maintaining the stability and controllability of the negative pressure, ensuring that the negative pressure suction effect in the negative pressure cylinder 3 is smooth and continuous.

[0029] See also Figure 3 A slide is fixedly mounted on the outer wall of the support ring 11, and the slide is slidably arranged in a slide groove opened on the inner wall of the negative pressure cylinder 3. The slide is slidably arranged in the slide groove, so that the rotation of the support ring 11 can be limited so that it can only translate up and down in the negative pressure cylinder 3; In the present invention, a mechanism for controlling the up and down movement of the support ring 11 is also specifically provided, specifically, as Figure 3 As shown, a nut 12 is fixedly installed at the bottom of the negative pressure cylinder 3, and a screw 13 is threadedly connected to the inner wall of the nut 12. One end of the screw 13 is rotatably connected to the support ring 11, and the other end is fixedly connected to a handle; When the screw rod 13 is rotated by the handle, the screw rod 13 will move up and down under the action of the nut 12, thereby driving the supporting ring 11 to move up and down to adjust its position.

[0030] Embodiment 2: See also Figure 4-Figure 7 Based on the first embodiment, in this embodiment, a damping mechanism is specifically provided to provide damping for the upward movement of the piston 4, such as Figure 4 As shown: The upper part of the piston 4 is filled with a filling liquid, and the top of the negative pressure cylinder 3 is connected to the pulsation sleeve 14 through a connecting pipe. In this embodiment, the connecting pipe is composed of a capillary tube 16 and a liquid supply tube 17 connected to each other. The capillary tube 16 is connected to the outer wall of the top of the negative pressure cylinder 3, and the liquid supply tube 17 is connected to the pulsation sleeve 14; When the piston 4 moves upward, the filling liquid is squeezed so that the filling liquid enters the pulsating sleeve 14 through the capillary 16 and the liquid supply tube 17. Since the capillary 16 is thin enough, the extrusion speed of the filling liquid is slow, thereby controlling the slow upward movement of the piston 4.

[0031] When the elastic support mechanism 5 uses a common spring, even if the elastic force of the spring changes, the upward movement speed of the piston 4 can always be in a relatively slow state due to the provision of the capillary tube 16 .

[0032] Preferably, a one-way valve is installed on the liquid supply pipe 17 to allow the filling liquid to flow in one direction.

[0033] In the present invention, the pulsating sleeve 14 is an annular air bag, which is sleeved on the drainage tube 1, and the inner wall is raised to form a convex point 18. When the pulsating sleeve 14 is filled with liquid, it will expand outward, and at the same time, its inner diameter will also shrink slightly. Through the slight shrinkage of the inner diameter, with the help of the convex point 18, the drainage tube 1 can be effectively squeezed, which can not only make the drainage tube 1 shrink and expand, which is more conducive to drainage, but also effectively avoid the blockage of the drainage tube 1 (using the deformation of the drainage tube 1).

[0034] The annular balloon is prefabricated and expands outward when filled with fluid, with the inner diameter slightly reduced.

[0035] like Figure 4 As shown, rubber rings 15 are also provided at the upper and lower ends of the pulsation sleeve 14 to fix the pulsation sleeve 14 on the drainage tube 1 through friction.

[0036] like Figure 5 As shown, a liquid return pipe 19 is also provided, which is connected between the top of the negative pressure cylinder 3 and the pulsation sleeve 14, and a solenoid valve 20 for controlling the on-off of the pipeline is installed on the liquid return pipe 19; When the piston 4 slowly moves upward to fill the pulsating sleeve 14 with liquid, the solenoid valve 20 is closed; when the piston 4 moves downward, the solenoid valve 20 is opened, and the negative pressure generated by the downward movement of the piston 4 can be used to re-absorb the liquid in the pulsating sleeve 14 into the negative pressure cylinder 3 through the return pipe 19, thereby completing the cycle.

[0037] In this embodiment, a push switch 21 is also installed on the top of the pressure plate 7 to control the on and off of the solenoid valve 20. When the pressure plate 7 is manually pressed to move the piston 4 downward, the push switch 21 is also triggered at the same time, thereby opening the solenoid valve 20; otherwise, the solenoid valve 20 is in a closed state.

[0038] Embodiment three: On the basis of Example 1 and Example 2, this embodiment provides a gastrointestinal decompression drainage method, which specifically includes the following steps: Step 1: One end of the drainage tube 1 is connected to the drainage point, and the other end is connected to the liquid collecting tank 2; Step 2: Press the piston 4 downward through the pressing plate 7 and the pressing rod 6 to compress the elastic supporting mechanism 5; Step 3, loosen the pressing plate 7; Step 4: The piston 4 slowly moves upward in the negative pressure cylinder 3, and negative pressure is continuously generated in the liquid collecting box 2 through the air inlet pipe 8 to perform negative pressure drainage.

[0039] 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. A gastrointestinal decompression drainage device, comprising a drainage tube (1) and a liquid collecting box (2) connected to the bottom end of the drainage tube (1), wherein the bottom end of the drainage tube (1) extends into the liquid collecting box (2), and is characterized in that: Also includes: A negative pressure cylinder (3) is fixedly mounted on the top of the liquid collecting box (2), and a piston (4) is movably arranged inside the cylinder so as to move up and down, wherein the bottom of the piston (4) is supported by an elastic supporting mechanism (5); An air intake pipe (8) is connected to the bottom of the negative pressure cylinder (3) and extends into the liquid collecting tank (2); a one-way air intake valve is also installed on the air intake pipe (8); An exhaust pipe (9) is connected to the outer wall of the bottom of the negative pressure cylinder (3), and a one-way exhaust valve is also installed on the exhaust pipe (9); After the piston (4) moves to the lower position of the negative pressure cylinder (3) and compresses the elastic support mechanism (5), it can slowly move upward in the negative pressure cylinder (3) to continuously generate negative pressure.

2. The gastrointestinal decompression drainage device according to claim 1, characterized in that: A pressure rod (6) is fixedly mounted on the top of the piston (4); the top end of the pressure rod (6) extends to the outside of the negative pressure cylinder (3) and is fixedly connected to a pressure plate (7).

3. The gastrointestinal decompression drainage device according to claim 1, characterized in that: A filter (10) is also installed at the end of the exhaust pipe (9).

4. The gastrointestinal decompression drainage device according to claim 1, characterized in that: It also comprises a support ring (11) which is movably arranged up and down in the negative pressure cylinder (3), and the elastic support mechanism (5) is fixedly arranged between the top of the support ring (11) and the bottom of the piston (4).

5. The gastrointestinal decompression drainage device according to claim 4, characterized in that: It also includes a nut (12) fixedly mounted on the bottom of the negative pressure cylinder (3), the inner wall of the nut (12) being threadedly connected to a screw rod (13), one end of the screw rod (13) being rotatably connected to the support ring (11), and the other end being fixedly connected to a handle; A sliding plate is fixedly mounted on the outer wall of the support ring (11), and the sliding plate is slidably arranged in a sliding groove provided on the inner wall of the negative pressure cylinder (3).

6. The gastrointestinal decompression drainage device according to claim 1, characterized in that: The top of the negative pressure cylinder (3) is connected to the pulsation sleeve (14) via a connecting pipe. The pulsation sleeve (14) is an annular air bag and is sleeved on the drainage tube (1). The upper part of the piston (4) is filled with filling liquid.

7. The gastrointestinal decompression drainage device according to claim 6, characterized in that: The connecting pipe is composed of a capillary tube (16) and a liquid supply tube (17) connected to each other. The capillary tube (16) is connected to the outer wall of the top of the negative pressure cylinder (3), and the liquid supply tube (17) is connected to the pulsation sleeve (14).

8. The gastrointestinal decompression drainage device according to claim 6, characterized in that: The inner wall of the pulsation sleeve (14) is also raised to form a convex point (18).

9. The gastrointestinal decompression drainage device according to claim 6, characterized in that: It also includes a liquid return pipe (19) connected between the top of the negative pressure cylinder (3) and the pulsation sleeve (14), and a solenoid valve (20) for controlling the on-off of the pipeline is installed on the liquid return pipe (19).

10. A method for gastrointestinal decompression drainage, for use with the gastrointestinal decompression drainage device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, one end of the drainage tube (1) is connected to the drainage point, and the other end is connected to the liquid collection tank (2); S2, pressing the piston (4) downward through the pressing plate (7) and the pressing rod (6), so that the elastic supporting mechanism (5) is compressed; S3, release the pressure plate (7); S4. The piston (4) slowly moves upward in the negative pressure cylinder (3), continuously generating negative pressure in the liquid collecting box (2) through the air inlet pipe (8), thereby performing negative pressure drainage.

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