Novel ascites drainage system

Abstract

The invention discloses a novel ascites drainage system which comprises a negative pressure structure, a dilution assembly, a cutting assembly and a pressing structure, and the negative pressure structure is placed in a mounting frame of the pressing structure; a pressure valve is arranged on the negative pressure structure, the upper part and the lower part of the negative pressure structure are respectively communicated with a liquid inlet pipe and a liquid outlet pipe, and a detachable pinch valve is arranged on the liquid outlet pipe; the dilution assembly communicates with the liquid inlet pipe, and a one-way valve is arranged at the communicating position; the cutting assembly is arranged in the negative pressure structure and comprises a net plate arranged in the middle of the negative pressure structure, pressing rotating structures arranged at the upper end and the lower end of the net plate and cutting tool bits arranged at the rotating ends of the pressing rotating structures, and when the negative pressure structure is pressed to contract, the pressing rotating structures are driven to rotate; therefore, the cutting tool bit is driven to cut the surface of the screen plate. According to the application, the problems that clots in high-viscosity ascites drainage are not thoroughly decomposed and a pipeline is easily blocked are solved in a mode of cooperation of dilution and cutting shear.

Description

Technical Field

[0001] The present application relates to the technical field of fluid drainage, and in particular to a novel ascites drainage system. Background Art

[0002] Ascites is a common complication in gastroenterology, especially in diseases such as cirrhosis and tumors. Traditional ascites drainage devices mostly use gravity drainage or rubber tube plus negative pressure ball drainage methods.

[0003] Ascites is often mixed with fibrin clots, necrotic tissue and pus secretions. Traditional drainage tubes rely only on gravity or fixed negative pressure suction, which can easily lead to tube blockage due to the deposition of viscous substances.

[0004] Although there are methods in the prior art to dilute ascites effusions with diluents (such as saline or enzymatic hydrolytic agents), which can reduce the apparent viscosity of the effusion, it cannot completely decompose the chemical cross-linking structure of the fibrin clot. When faced with viscous effusions with poor fluidity, fibrin, necrotic tissue or blood clots tend to still aggregate to form a three-dimensional network structure, which is difficult to be sucked into the drainage bag by conventional drainage devices. Summary of the Invention

[0005] The present application aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent.

[0006] To achieve the above-mentioned objectives, the first aspect of the present application proposes a novel ascites drainage system, comprising: a negative pressure structure, a dilution component, a cutting component and a pressing structure, wherein the negative pressure structure that can be pressed to rebound is placed in the mounting frame of the pressing structure, and the pressing end of the pressing structure is located above the negative pressure structure; a pressure valve for pressure relief is provided on the negative pressure structure, and the upper and lower parts of the negative pressure structure are respectively connected with an inlet pipe and an outlet pipe, and a detachable clamping valve is provided on the outlet pipe; the dilution component is connected with the inlet pipe, and a one-way valve is provided at the connection point; the cutting component is arranged in the negative pressure structure, and the cutting component includes a mesh plate arranged in the middle of the negative pressure structure and a pressing and rotating structure arranged at the upper and lower ends of the mesh plate, and a cutting head arranged on the rotating end of the pressing and rotating structure, so that when the negative pressure structure is pressed and contracted, the pressing and rotating structure is driven to rotate, thereby driving the cutting head to cut the surface of the mesh plate.

[0007] In addition, the novel ascites drainage system proposed in the present application may also have the following additional technical features:

[0008] As a further description of the above technical solution: the pressing and rotating structure includes a sleeve and a rotating shaft, wherein the sleeve is arranged on the negative pressure structure, the sleeve is a hollow cylindrical structure, and a spiral groove is opened on the inner wall along the length direction; the rotating shaft can be rotatably arranged on the mesh plate, and the rotating shaft sleeve is arranged in the sleeve, wherein a sliding head is provided on the rotating shaft, and the sliding head is slidably arranged in the spiral groove; wherein the cutting head is arranged at an inclined angle to the mesh plate and is fixed on the rotating shaft.

[0009] As a further description of the above technical solution: the rotation directions of the two pressing and rotating structures are opposite.

[0010] As a further description of the above technical solution: the negative pressure structure includes a cover plate, an intermediate tube and a bellows, wherein the intermediate tube is arranged between the two cover plates, and the cover plate and the intermediate tube are connected through the bellows; wherein the mesh plate is arranged on the intermediate tube.

[0011] As a further description of the above technical solution: the pressing structure includes an electric telescopic rod and a pressing plate, wherein the electric telescopic rod is arranged on the mounting frame, and the telescopic end of the electric telescopic rod extends vertically downward; the pressing plate is arranged at the telescopic end of the electric telescopic rod and is located above the negative pressure structure.

[0012] As a further description of the above technical solution: the dilution component includes an elastic balloon and a propulsion structure respectively arranged inside and outside the negative pressure structure, wherein the propulsion structure is connected to the elastic balloon through a first dilution tube, and the first dilution tube is provided with a check valve, the elastic balloon is connected to a second dilution tube, the second dilution tube extends outside the negative pressure structure and is connected to the liquid inlet pipe through a three-way valve; wherein the liquid inlet pipe is provided with the one-way valve on both sides of the three-way valve.

[0013] As a further description of the above technical solution: the propulsion structure includes a cylinder, a push rod, a piston head and a spring, wherein the piston head is arranged at the rod end of the push rod, tightly attached to the inner wall of the cylinder, and slidably arranged in the cylinder; the spring is sleeved on the push rod, and the two ends of the spring are respectively connected to the pushing end of the push rod and the cylinder.

[0014] As a further description of the above technical solution: an elastic valve is provided at the bottom of the negative pressure structure, a pressure trigger structure is embedded in the bottom of the mounting frame, and the pressure trigger structure is located below the elastic valve; wherein the pressure trigger structure and the pressing structure are electrically connected to the controller respectively.

[0015] According to the novel ascites drainage system of the present application, when the negative pressure structure is pressed, the diluent is injected into the liquid inlet tube and mixed with the ascites to achieve a dilution effect. After the three-dimensional network structure such as fibrin is blocked by the mesh plate, it is broken up by the cutting head to avoid clot aggregation, thereby solving the problem that viscous ascites easily causes blockage of the drainage pipeline; when the outlet tube is blocked, the elastic valve bulges outward to trigger the pressure triggering structure, and by pressing the pressing structure, the blocked outlet tube can be cleared in a pressurized manner.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a schematic structural diagram of a novel ascites drainage system according to one embodiment of the present application;

[0019] Figure 2 is a schematic structural diagram of a dilution component according to one embodiment of the present application;

[0020] Figure 3 is a schematic diagram of the internal structure of a novel ascites drainage system according to one embodiment of the present application;

[0021] Figure 4 is a schematic diagram of the internal structure of a novel ascites drainage system according to another embodiment of the present application;

[0022] Figure 5 is a schematic diagram of the internal structure of a novel ascites drainage system according to another embodiment of the present application;

[0023] Figure 6 is a schematic diagram of an enlarged structure of a local area A according to an embodiment of the present application;

[0024] Figure 7 is a schematic diagram of a cutting structure according to an embodiment of the present application;

[0025] As shown in the figure:

[0026] 100. Negative pressure structure; 101. Pressure valve; 102. Liquid inlet pipe; 103. Liquid outlet pipe; 104. Pinch valve; 105. One-way valve; 106. Elastic valve; 200. Dilution assembly; 210. Propulsion structure; 211. Cylinder; 212. Push rod; 213. Piston head; 214. Spring; 220. First dilution tube; 230. Elastic balloon; 240. Check valve; 250. Second dilution tube; 300. Cutting structure; 310. Screen; 320. Pressing and rotating structure; 321. Bushing; 3211. Spiral groove; 322. Rotating shaft; 330. Cutting head; 400. Pressing structure; 401. Mounting frame; 410. Electric telescopic rod; 420. Pressing plate; 500. Pressure trigger structure. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0028] The novel ascites drainage system according to the embodiment of the present application is described below with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 3 As shown, the novel ascites drainage system according to the embodiment of the present application may include a negative pressure structure 100 , a dilution component 200 , a cutting component 300 and a pressing structure 400 .

[0030] Among them, the negative pressure structure 100 that can be pressed and rebounded is placed in the mounting frame 401 of the pressing structure 400, and the pressing end of the pressing structure 400 is located above the negative pressure structure 100. By controlling the pressing end of the pressing structure 400, the pressing action of the negative pressure structure 100 can be achieved.

[0031] like Figure 3 and Figure 4 As shown, a pressure valve 101 for pressure relief is provided on the negative pressure structure 100 , and a liquid inlet pipe 102 and a liquid outlet pipe 103 are connected to the upper and lower parts of the negative pressure structure 100 respectively. A detachable pinch valve 104 is provided on the liquid outlet pipe 103 .

[0032] It should be noted that the liquid inlet tube 102 is connected to the indwelling needle or drainage channel on the patient's body, and the liquid outlet tube 103 is connected to the liquid storage bag. The patient's ascites flows into the negative pressure structure 100 through the liquid inlet tube 102 and flows into the liquid storage bag along the liquid outlet tube 103.

[0033] like Figure 2As shown, the dilution component 200 is connected to the liquid inlet pipe 102, and a one-way valve 105 is provided at the connection point to prevent the pressure in the negative pressure structure 100 from causing the diluent to flow back into the dilution component 200 when the negative pressure structure 100 is pressed.

[0034] like Figure 5 and Figure 7 As shown, the cutting assembly 300 is arranged in the negative pressure structure 100. The cutting assembly 300 includes a mesh plate 310 arranged in the middle of the negative pressure structure 100, a pressing and rotating structure 320 arranged at the upper and lower ends of the mesh plate 310, and a cutting head 330 arranged on the rotating end of the pressing and rotating structure 320, so that when the negative pressure structure 100 is pressed and contracted, the pressing and rotating structure 320 is driven to rotate, thereby driving the cutting head 330 to cut the surface of the mesh plate 310.

[0035] Specifically, when draining ascites from a patient, the relevant staff first connects the liquid inlet tube 102 to the drainage port of the patient's abdominal cavity, and connects the liquid outlet tube 103 to the liquid storage bag, and then places the negative pressure structure 100 and the liquid storage bag in descending order, and opens the clamping valve 104. The fluid accumulated in the patient's abdominal cavity can automatically flow into the liquid storage bag due to the abdominal cavity pressure and gravity.

[0036] Relevant staff adds diluent into the dilution component 200, and the diluent is mixed with the ascites through the liquid inlet tube 102 to reduce the viscosity of the ascites, and the mixed liquid is discharged to the mesh plate 310 in the negative pressure structure 100 along the liquid inlet tube 102, and the mesh plate 310 blocks the fiber clots and necrotic tissue.

[0037] Before pressing the negative pressure structure 100 downward, close the clamping valve 104. During the pressing process of the negative pressure structure 100, the internal gas is discharged through the pressure valve 101, and the negative pressure structure 100 drives the pressing and rotating structure 320 to rotate the cutting head 330 to shear and crush the fiber clots and necrotic tissue on the mesh plate 310.

[0038] After the pressing is completed, the pinch valve 104 is opened, and the sheared and crushed fiber clots and necrotic tissue are discharged into the liquid storage bag together with the mixed liquid.

[0039] It should be noted that when the viscosity of the patient's peritoneal effusion is not high, the relevant staff can separate the pressing structure 400 from the negative pressure structure 100 and discharge the effusion through gravity flow. When the patient's intra-abdominal pressure is insufficient, the negative pressure structure 100 can be manually pressed to allow the negative pressure structure 100 to suction the effusion in the patient's peritoneal cavity. Through this separable method, the pressing structure 400 can be selectively used according to different patient peritoneal effusion conditions, thereby reducing the occupancy of the pressing structure 400.

[0040] In addition, since the negative pressure structure 100 is connected to the patient's drainage port through the liquid inlet tube 102 and is connected to the liquid storage bag through the liquid outlet tube 103, after the drainage of the ascites is completed, the negative pressure structure 100 and the liquid storage bag can be discarded as medical waste, and the pressing structure 400 can be recycled.

[0041] It can be understood that if the pressing structure 400 is separated from the negative pressure structure 100 and the negative pressure structure 100 is pressed only by hand, the pinch valve 104 can be a manual valve; if the pressing structure 400 is not separated from the negative pressure structure 100 and the pinch valve 104 and the pressing structure 400 need to be synchronously controlled, the pinch valve 104 can be an electric valve.

[0042] To clearly illustrate the above embodiment, in one embodiment of the present application, Figure 5 and Figure 7 As shown, the pressing and rotating structure 320 includes a sleeve 321 and a rotating shaft 322 .

[0043] Among them, the sleeve 321 is arranged on the negative pressure structure 100, the sleeve 321 is a hollow cylindrical structure, and a spiral groove 3211 is opened on the inner wall along the length direction, the rotating shaft 322 can be rotatably set on the mesh plate 310, and the rotating shaft 322 is sleeved in the sleeve 321, wherein a sliding head is provided on the rotating shaft 322, and the sliding head is slidably set in the spiral groove 3211.

[0044] The cutting head 330 is arranged at an inclined angle to the screen plate 310 and is fixed on the rotating shaft 322 .

[0045] It should be noted that by tilting the cutting head 330, the fibrous tissue can be encouraged to form fragmented chips rather than long entanglements during rotational cutting, thereby avoiding clogging of the pores of the mesh 310. In addition, the tilting of the cutting head can reduce the contact area between the cutting surface and the debris, reduce the probability of fibrin re-adhering to the mesh 310, and maintain the permeability of the mesh 310.

[0046] Specifically, when the negative pressure structure 100 is pressed, the top and bottom inner walls of the negative pressure structure 100 squeeze the upper and lower sleeves 321 respectively, forcing the sliding head in the rotating shaft 322 to rotate in the spiral groove 3211, thereby driving the rotation of the cutting head 330. The fibrin clot is cross-linked through disulfide bonds to form a three-dimensional network structure, and the shear stress generated by the inclined head can directionally destroy the chemical bonds, thereby improving the crushing efficiency.

[0047] As a possible situation, the rotation directions of the two pressing and rotating structures 320 are opposite.

[0048] It should be noted that when the two cutting heads 330 rotate in opposite directions (such as one clockwise and the other counterclockwise), cross shearing will be formed on the fibrin clot or necrotic tissue, which can effectively destroy the three-dimensional network structure of fibrin. Compared with rotating in the same direction, the fragmentation efficiency is higher.

[0049] In one embodiment of the present application, Figure 5 As shown, the negative pressure structure 100 includes a cover plate 110 , a middle tube 120 and a bellows 130 .

[0050] The middle tube 120 is disposed between the two cover plates 110 . The cover plates 110 and the middle tube 120 are connected via a bellows 130 . The mesh plate 310 is disposed on the middle tube 120 .

[0051] To clearly illustrate the above embodiment, in one embodiment of the present application, Figure 5 As shown, the pressing structure 400 includes an electric telescopic rod 410 and a pressing plate 420 .

[0052] The electric telescopic rod 410 is arranged on the mounting frame 401 , and the telescopic end of the electric telescopic rod 410 extends vertically downward. The pressing plate 420 is arranged at the telescopic end of the electric telescopic rod 410 and is located above the negative pressure structure 100 .

[0053] It should be noted that during normal drainage of peritoneal effusion, the electric telescopic rod 410 can be started at a timed interval and the pinch valve 104 can be closed before starting. When the electric telescopic rod 410 extends downward, it can press the upper cover 110. Since the negative pressure structure 100 is arranged in the mounting frame 401, the bellows 130 can be contracted. Due to the setting of the one-way valve 105 on the liquid inlet pipe 102, the gas in the negative pressure structure 100 can be prevented from flowing into the liquid inlet pipe 102. The gas in the negative pressure structure 100 is compressed until the opening threshold of the pressure valve 101 is reached, and the compressed gas is discharged from the pressure valve 101.

[0054] When the electric telescopic rod 410 is reset, the pinch valve 104 is opened, and the bellows 130 can suck the liquid inlet tube 102 due to its own rebound, so that the peritoneal effusion is sucked into the negative pressure structure 100 .

[0055] It is understandable that in order to prevent the accumulated liquid in the liquid outlet pipe 103 from flowing back into the negative pressure structure 100 when the negative pressure structure 100 rebounds, a one-way valve 105 can also be provided on the liquid outlet pipe 103.

[0056] In one embodiment of the present application, Figure 2 As shown, the dilution assembly 200 includes an elastic balloon 230 and a propulsion structure 210 respectively disposed inside and outside the negative pressure structure 100 .

[0057] Among them, the propulsion structure 210 is connected to the elastic balloon 230 through the first dilution tube 220, and a check valve 240 is provided on the first dilution tube 220 to prevent the dilution liquid from flowing back into the propulsion structure 210 when the elastic balloon 230 contracts. The elastic balloon 230 is connected to the second dilution tube 250, which extends to the outside of the negative pressure structure 100 and is connected to the liquid inlet pipe 102 through the three-way valve 201.

[0058] The liquid inlet pipe 102 is provided with a one-way valve 105 on both sides of the three-way valve 201 .

[0059] It should be noted that the one-way valve 105 on the liquid inlet tube 102 close to the negative pressure structure 100 is used to prevent the gas caused by pressing the negative pressure knot 100 from flowing into the liquid inlet tube 102; and the one-way valve 105 on the side of the liquid inlet tube 102 away from the negative pressure structure 100 is used to prevent the diluent in the dilution component 200 from flowing into the patient's body due to the pressure difference.

[0060] To clearly illustrate the above embodiment, in one embodiment of the present application, Figure 5 As shown, the propulsion structure 210 includes a cylinder 211 , a push rod 212 , a piston head 213 and a spring 214 .

[0061] Among them, the piston head 213 is set at the rod end of the push rod 212, and is close to the inner wall of the cylinder 211, and is slidably set in the cylinder 211. The spring 214 is sleeved on the push rod 212, and the two ends of the spring 214 are respectively connected to the pushing end of the push rod 212 and the cylinder 211.

[0062] It should be noted that when the dilution component 200 dilutes the ascites in the liquid inlet tube 102, the relevant staff first pours the diluent into the cylinder 211. At this time, due to the pouring of the diluent, the piston head 213 is pushed outward, and the spring 214 is in a stretched state. Due to the reset effect of the spring 214, the diluent can be pushed into the liquid inlet tube 102.

[0063] To clearly illustrate the above embodiment, in one embodiment of the present application, Figure 5 and Figure 6 As shown, an elastic valve 106 is provided at the bottom of the negative pressure structure 100, and a pressure trigger structure 500 is embedded at the bottom of the mounting frame 401, and the pressure trigger structure 500 is located below the elastic valve 106; wherein, the pressure trigger structure 500 and the pressing structure 400 are electrically connected to the controller respectively.

[0064] As a possible scenario, the pressure trigger structure 500 may be an elastic sheet proximity switch or a pressure sensor.

[0065] Specifically, when the liquid outlet pipe 103 is blocked, the propulsion structure 210 continues to push the diluent into the elastic balloon 230, causing the elastic balloon 230 to expand, and the pressure in the negative pressure structure 100 increases, forcing the elastic half valve 106 to bulge outward and trigger the pressure trigger structure 500. After receiving the pressure signal, the controller keeps the clamping valve 104 open and controls the pressing structure 400 to press the negative pressure structure 100. When the pressure in the negative pressure structure 100 does not exceed the threshold of the pressure valve 101, the pressure in the negative pressure structure 100 clears the blocked liquid outlet pipe 103 to ensure the smooth flow of the liquid outlet pipe 103.

[0066] It should be noted that a timing module may be provided in the controller to realize timing control of the pressing structure 400 pressing the negative pressure structure 100 to ensure intermittent provision of negative pressure, thereby facilitating the drainage of fluid accumulation in the patient's abdominal cavity.

[0067] It can be understood that before the controller timedly controls the pressing structure 400 to press the negative pressure structure 100, the controller closes the pinch valve 104 to discharge the gas in the negative pressure structure 100 from the pressure valve 101; and when the liquid outlet pipe 103 is blocked, the controller keeps the pinch valve 104 open due to receiving the pressure signal, so that when the pressing structure 400 presses the negative pressure structure 100, the blockage in the liquid inlet pipe 102 can be cleared.

[0068] As a possible situation, when the pressing structure 400 presses down the negative pressure structure 100, due to the pressure inside the negative pressure structure 100 and the squeezing of the balloon by the propulsion structure 210, the outward pressure at the liquid outlet of the balloon is greater than the pressure at the second dilution tube 250. In the presence of a positive pressure difference, the diluent can be injected into the mesh plate 310 as the negative pressure structure 100 is compressed. When the cutting head 330 cuts the fibrin clot or necrotic tissue on the mesh plate 310, the fibrin network structure can be dispersed as the diluent is injected, thereby reducing the cutting resistance of the head, and the cut network structure can be mixed in the diluent and separated from the mesh plate 310 to avoid secondary deposition.

[0069] In summary, according to the novel ascites drainage system of the embodiment of the present application, when the negative pressure structure 100 is pressed, the diluent is injected into the liquid inlet tube 102 and mixed with the ascites to achieve a dilution effect, and after the three-dimensional network structure such as fibrin is blocked by the mesh plate 310, it is broken by the cutting head 330 to avoid clot aggregation, thereby solving the problem that viscous ascites easily causes blockage of the drainage line; when the outlet tube 103 is blocked, the elastic valve 106 bulges outward to trigger the pressure triggering structure 500, and by pressing the pressing structure 400, the blocked outlet tube 103 can be cleared in a pressurized manner.

[0070] In another embodiment of the present application, the novel ascites drainage system of the present application can also be used to treat malignant ascites in oncology.

[0071] In the management of ascites caused by peritoneal metastasis of advanced cancer, patients with malignant ascites caused by ovarian cancer, gastric cancer, pancreatic cancer, etc. often suffer from abdominal distension and difficulty breathing due to large amounts of ascites.

[0072] The new ascites drainage system of the present application can drain ascites in a timely and quantitative manner to relieve symptoms, break up tumor clots through cutting components, and avoid blockage of traditional drainage tubes due to fibrin clumps; for chylous ascites caused by lymphatic vessel obstruction, the new ascites drainage system of the present application can separate chylomicrons, reduce the viscosity of the drainage fluid, and avoid catheter adhesion.

[0073] In another embodiment of the present application, the novel ascites drainage system of the present application can also be used for the treatment of inflammatory ascites of tuberculous peritonitis in the tuberculosis department.

[0074] In view of the high fibrinogen characteristics of tuberculous ascites, which easily forms compartmentalized packages, the cutting component can break up the fibrous partition network to improve drainage efficiency. After drainage of the patient, urokinase is injected to dissolve adhesions and reduce the risk of peritoneal thickening.

[0075] In another embodiment of the present application, the novel ascites drainage system of the present application can also be used for the rapid treatment of traumatic ascites in the emergency department.

[0076] Acute peritoneal hemorrhage or hydroperitoneum following abdominal trauma or surgery often leads to drainage tube obstruction due to fibrin clots (incidence > 60%), and traditional drainage cannot remove highly viscous blood clots.

[0077] The novel ascites drainage system of the present application injects mixed ascites by diluting the physiological saline of the component 200 to reduce the hematocrit, reduce clot regeneration, and utilizes the cutting structure 300 to break up blood clots.

[0078] In another embodiment of the present application, the novel ascites drainage system of the present application can also be applied to the ascites-blood purification linkage of patients with multiple organ failure in the critical care department.

[0079] Patients with hepatorenal syndrome need to simultaneously clear ascites toxins and blood toxins, but the step-by-step procedure increases the risk of infection.

[0080] In the novel ascites drainage system of the present application, the outlet tube 103 can be connected to a CRRT (continuous renal replacement therapy) filter, and the ascites directly enters the blood purification circuit after being cut and crushed.

[0081] In another embodiment of the present application, the novel ascites drainage system of the present application can also be used for the removal of clots in malignant pleural effusion.

[0082] Based on the cutting effect of the cutting structure 300, the fibrin clots and tumor necrotic tissue in the pleural effusion can be broken up, reducing the risk of pleural effusion clots clogging the pipeline. The urokinase solution is injected through the dilution component 200 to dissolve the separating package and improve the drainage efficiency. Compared with traditional chest tube drainage, it can effectively reduce the clot blockage rate.

[0083] It should be understood that the application scenarios of the ascites drainage system described above are only illustrative illustrations, and not an exhaustive list of the application scope of this application. Those skilled in the art can apply it to other medical scenarios requiring drainage treatment based on the technical solution of this application. These application methods that are not described in detail should also be included in the scope of protection of this application.

[0084] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0085] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0086] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A new type of ascites drainage system, characterized in that: include: A negative pressure structure (100), a dilution component (200), a cutting component (300) and a pressing structure (400), wherein: The negative pressure structure (100) that can rebound when pressed is placed in the mounting frame (401) of the pressing structure (400), and the pressing end of the pressing structure (400) is located above the negative pressure structure (100); The negative pressure structure (100) is provided with a pressure valve (101) for pressure relief, the upper portion and the lower portion of the negative pressure structure (100) are respectively connected to a liquid inlet pipe (102) and a liquid outlet pipe (103), and the liquid outlet pipe (103) is provided with a detachable pinch valve (104); The dilution component (200) is in communication with the liquid inlet pipe (102), and a one-way valve (105) is provided at the communication point; The cutting assembly (300) is arranged in the negative pressure structure (100), and the cutting assembly (300) includes a mesh plate (310) arranged in the middle of the negative pressure structure (100), a pressing and rotating structure (320) arranged at the upper and lower ends of the mesh plate (310), and a cutting head (330) arranged on the rotating end of the pressing and rotating structure (320), so that when the negative pressure structure (100) is pressed and contracted, the pressing and rotating structure (320) is driven to rotate, thereby driving the cutting head (330) to cut the surface of the mesh plate (310).

2. The novel ascites drainage system according to claim 1, characterized in that: The pressing and rotating structure (320) comprises a shaft sleeve (321) and a rotating shaft (322), wherein: The shaft sleeve (321) is arranged on the negative pressure structure (100); the shaft sleeve (321) is a hollow cylindrical structure, and a spiral groove (3211) is provided on the inner wall along the length direction; The rotating shaft (322) is rotatably arranged on the screen plate (310), and the rotating shaft (322) is sleeved in the shaft sleeve (321), wherein a sliding head is provided on the rotating shaft (322), and the sliding head is slidably arranged in the spiral groove (3211); The cutting head (330) is arranged at an inclined angle to the screen plate (310) and is fixed on the rotating shaft (322).

3. The novel ascites drainage system according to claim 1, characterized in that: The rotation directions of the two pressing and rotating structures (320) are opposite.

4. The novel ascites drainage system according to claim 1, characterized in that: The negative pressure structure (100) comprises a cover plate (110), an intermediate tube (120) and a bellows (130), wherein: The intermediate tube (120) is arranged between the two cover plates (110), and the cover plates (110) and the intermediate tube (120) are connected via the bellows (130); Wherein, the mesh plate (310) is arranged on the intermediate tube (120).

5. The novel ascites drainage system according to claim 1, characterized in that: The pressing structure (400) comprises an electric telescopic rod (410) and a pressing plate (420), wherein: The electric telescopic rod (410) is arranged on the mounting frame (401), and the telescopic end of the electric telescopic rod (410) extends vertically downward; The pressing plate (420) is arranged at the telescopic end of the electric telescopic rod (410) and is located above the negative pressure structure (100).

6. The novel ascites drainage system according to claim 1, characterized in that: The dilution assembly (200) comprises an elastic balloon (230) and a propulsion structure (210) respectively arranged inside and outside the negative pressure structure, wherein the propulsion structure (210) is connected to the elastic balloon (230) via a first dilution tube (220), and a check valve (240) is provided on the first dilution tube (220). The elastic balloon (230) is connected to a second dilution tube (250), and the second dilution tube (250) extends outside the negative pressure structure (100) and is connected to the liquid inlet tube (102) via a three-way valve (201); Wherein, the liquid inlet pipe (102) is provided with the one-way valve (105) on both sides of the three-way valve (201).

7. The novel ascites drainage system according to claim 6, characterized in that: The propulsion structure (210) includes a cylinder (211), a push rod (212), a piston head (213) and a spring (214), wherein: The piston head (213) is arranged at the rod end of the push rod (212), is in close contact with the inner wall of the cylinder (211), and is slidably arranged in the cylinder (211); The spring (214) is sleeved on the push rod (212), and two ends of the spring (214) are respectively connected to the pushing end of the push rod (212) and the cylinder (211).

8. The novel ascites drainage system according to claim 1, characterized in that: An elastic valve (106) is provided at the bottom of the negative pressure structure (100), a pressure triggering structure (500) is embedded at the bottom of the mounting frame (401), and the pressure triggering structure (500) is located below the elastic valve (106); Wherein, the pressure triggering structure (500) and the pressing structure (400) are respectively electrically connected to the controller.

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