Drainage device for thoracic surgery department

Abstract

The invention discloses a thoracic surgery drainage device, and relates to the technical field of drainage. The problems of leakage and pollution are solved. The device specifically comprises a box body, a liquid storage tank and a negative pressure applying mechanism used for applying negative pressure to the liquid storage tank are arranged in the box body, the top of the liquid storage tank is connected with a connecting pipe, and the other end of the connecting pipe is connected with a fixing assembly fixed to the thoracic cavity or the abdominal cavity of a patient through a self-closing quick connector; the fixing assembly comprises a glue sticker, a fixing head fixed to the glue sticker and a guide pipe fixed to the fixing head. The self-closing type quick connector comprises a conical pipe fixed to and communicated with the guide pipe and a plug fixed to and communicated with the connecting pipe. By arranging the self-closing quick connector, on one hand, quick connection and disassembly of the connecting pipe and the guide pipe can be achieved, on the other hand, through conical matching of the blocking ball and the conical pipe, the conical pipe can be automatically blocked in the disassembly process, and therefore bacterial backflow pollution is avoided while accumulated liquid leakage is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage, and in particular to a thoracic surgery drainage device. Background Art

[0002] Under normal conditions, there is a small amount of fluid in the human chest and abdominal cavities, which lubricates the organs in the cavities. If the amount of fluid in the cavity increases beyond the normal physiological range under pathological conditions, it will become a disease, such as pleural effusion and ascites. There are many causes of peritoneal effusion and pleural effusion, which are very common clinical diseases. Although peritoneal effusion and pleural effusion are only a symptom, a large amount of peritoneal effusion and a large amount of peritoneal effusion will cause a series of complications and are not conducive to the treatment of the cause. In severe cases, it may even be life-threatening. Therefore, for cases with symptoms of large amounts of peritoneal effusion and large amounts of pleural effusion, fluid drainage must be performed first during clinical treatment. After searching, the Chinese patent publication number CN108379677B discloses a negative pressure drainage device, including a drainage tube, wherein the drainage tube includes a drainage section and a connecting section connected in sequence, and is characterized in that a port on the drainage section away from the connecting section is a sealing structure, a groove portion is provided on the outer circumferential surface of the drainage section, and a drainage hole is provided on the inner wall surface of the groove portion; wherein a catheter is extended from the drainage hole to the inner cavity of the drainage section, and the catheter is a reducing structure along its extension direction; a catheter sleeve is movably provided on the outer circumferential surface of the catheter, and the catheter sleeve can move along the axial direction of the catheter, and a plurality of through holes are provided on the outer circumferential surface of the catheter sleeve, and the through holes are located at the end of the catheter sleeve away from the drainage hole.

[0003] The above patent has the following shortcomings: it uses plug-in sockets to connect the pipelines, but in actual use, if the pipelines are disassembled, the pipelines connected to the body cannot be closed, so the accumulated fluid will flow out and pollute the environment, and there is also a risk of bacterial contamination.

[0004] To this end, the present invention provides a thoracic surgery drainage device. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a thoracic surgery drainage device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A thoracic surgical drainage device comprises a box body, The box body is provided with a liquid storage tank and a negative pressure applying mechanism for applying negative pressure to the liquid storage tank. The top of the liquid storage tank is connected with a connecting pipe, and the other end of the connecting pipe is connected with a fixing component fixed to the chest or abdominal cavity of the patient through a self-closing quick connector. The fixing assembly includes an adhesive patch, a fixing head fixed to the adhesive patch, and a catheter fixed to the fixing head; The self-closing quick connector includes a tapered tube fixed to and connected to a conduit and a plug fixed to and connected to a connecting tube. A blocking ball is arranged on the inner wall of the tapered tube, the blocking ball is connected to the inner wall of the tapered tube through a spring, and uniform leakage holes are opened at the end of the plug.

[0007] Preferably, the plug and the tapered tube are in transition fit.

[0008] Furthermore: the diameter of the blocking ball is larger than the minimum diameter of the tapered tube and smaller than the maximum diameter of the tapered tube.

[0009] On the basis of the above scheme: a plug handle is fixed on the outer wall of the plug, the plug handle is sleeved on the outer wall of the tapered tube, and the outer wall of the tapered tube is provided with an annular protrusion, and the inner wall of the plug handle is provided with a groove matching the annular protrusion.

[0010] A better solution among the above solutions is that the liquid storage tank includes a tank cover fixed to the box body and a tank body connected to the tank cover by threads, and the inner wall of the tank cover is provided with a liquid inlet hole and a suction hole connected to the negative pressure applying mechanism.

[0011] As a further solution of the present invention: an inserting tube is fixed on the inner wall of the liquid inlet hole, the connecting tube is sleeved on the outer wall of the inserting tube, and a ridge protrusion is fixed on the outer wall of the inserting tube.

[0012] At the same time, the negative pressure application mechanism includes a suction tube, an automatic opening and closing component and a suction pump. The suction pump is fixed to the inner wall of the box, and one end of the suction tube is connected to the suction pump, and the other end of the suction tube is connected to the suction hole. The automatic opening and closing component is arranged on the top of the suction tube.

[0013] As a preferred embodiment of the present invention: the automatic opening and closing component includes a cylinder body and a piston slidably connected to the inner wall of the cylinder body, the cylinder body is radially slidably connected to a slider, one side of the slider is buckled with spring 2, the other end of spring 2 is buckled to the inner wall of the cylinder body, and the other side of the slider is fixed with an arc head limit rod which cooperates with the piston to limit the position.

[0014] At the same time, a limit ring 2 and a limit ring 1 are fixed on the upper and lower parts of the cylinder body respectively, a spring 3 is buckled on the top of the piston, and the other end of the spring 3 is buckled on the top lower surface of the cylinder body, an electrode sheet 2 is fixed on the bottom outer wall of the limit ring 2, and an electrode sheet 1 that cooperates with the electrode sheet 2 is fixed on the top outer wall of the piston.

[0015] As a more optimal solution of the present invention: the electrode sheet 1 and the electrode sheet 2 are connected in series to the power supply circuit of the suction pump.

[0016] The beneficial effects of the present invention are: 1. The present invention, by providing a self-closing quick connector, can realize the quick connection and disassembly of the connecting tube and the catheter on the one hand, and on the other hand, by utilizing the tapered fit between the plugging ball and the tapered tube, the tapered tube can be automatically blocked during disassembly, thereby preventing leakage of accumulated fluid and bacterial reflux contamination.

[0017] 2. The present invention, by providing an inserting handle, can strengthen the fixing stability of the plug and the tapered tube by utilizing the cooperation between the annular protrusion and the card slot.

[0018] 3. The present invention arranges the liquid storage tank as a threaded connection between the tank body and the suction hole, so that when the accumulated liquid is collected and the spring is filled, the tank body can be conveniently disassembled and replaced, and the connecting pipe is sleeved on the insert pipe, so that the connecting pipe and the tank cover can also be quickly disassembled, and the raised ribs can increase the stability of the connection between the connecting pipe and the insert pipe.

[0019] 4. The present invention sets up an automatic opening and closing component, which can control whether the electrode sheet 1 is in contact with the electrode sheet 2 by controlling the piston, so that the entire negative pressure suction can be carried out within a certain safety pressure range, and the control is carried out simultaneously by using the negative pressure and the limiting of the spring 3 and the arc head limiting rod, and the opening and closing control of the suction pump can be automatically carried out according to the change of the negative pressure, thereby simplifying the control logic. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a thoracic surgical drainage device proposed by the present invention; Figure 2 This is a schematic diagram of the structure of a fixing assembly of a thoracic surgical drainage device proposed by the present invention; Figure 3 A schematic diagram of the structure of a self-closing quick connector for a thoracic surgical drainage device proposed by the present invention; Figure 4 This is a schematic diagram of the enlarged structure of part A of a thoracic surgical drainage device proposed by the present invention; Figure 5 A schematic diagram of the structure of a liquid storage tank for a thoracic surgical drainage device proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a negative pressure applying mechanism of a thoracic surgical drainage device proposed by the present invention; Figure 7 This is a schematic diagram of the enlarged structure of part B of a thoracic surgical drainage device proposed by the present invention.

[0021] In the figure: 1. box body; 2. negative pressure mechanism; 3. connecting pipe; 4. self-closing quick connector; 5. fixing assembly; 6. liquid storage tank; 7. box door; 8. adhesive label; 9. catheter; 10. fixing head; 11. conical tube; 12. leakage hole; 13. plug; 14. plug handle; 15. plug ball; 16. spring one; 17. annular protrusion; 18. tank body; 19. suction hole; 20. tank cover; 21. rib protrusion; 22. insert tube; 23. liquid inlet hole; 24. suction tube; 25. automatic opening and closing assembly; 26. suction pump; 27. cylinder body; 28. spring two; 29. ​​slider; 30. arc head limit rod; 31. limit ring one; 32. piston; 33. electrode sheet one; 34. electrode sheet two; 35. limit ring two; 36. spring three. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0023] Embodiments of the present invention are described in detail below, 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Embodiment 1: A thoracic surgical drainage device, such as Figure 1-Figure 7 As shown, it includes a box body 1, in which a liquid storage tank 6 and a negative pressure applying mechanism 2 for applying negative pressure to the liquid storage tank 6 are arranged, the top of the liquid storage tank 6 is connected to a connecting pipe 3, and the other end of the connecting pipe 3 is connected to a fixing component 5 fixed to the patient's chest or abdominal cavity through a self-closing quick connector 4.

[0025] One side of the box body 1 is connected with a box door 7 via a hinge.

[0026] The fixing assembly 5 includes an adhesive patch 8 , a fixing head 10 fixed to the adhesive patch 8 , and a catheter 9 fixed to the fixing head 10 .

[0027] The self-closing quick connector 4 includes a tapered tube 11 fixed to and connected to the conduit 9 and a plug 13 fixed to and connected to the connecting tube 3. The plug 13 and the tapered tube 11 are in transitional fit. The inner wall of the tapered tube 11 is provided with a blocking ball 15, which is connected to the inner wall of the tapered tube 11 through a spring 16, and a uniform leakage hole 12 is opened at the end of the plug 13.

[0028] The diameter of the blocking ball 15 is larger than the minimum diameter of the tapered tube 11 and smaller than the maximum diameter of the tapered tube 11 .

[0029] When the device is in use, the adhesive tape 8 can be attached to the skin, and then the plug 13 can be inserted into the inner wall of the conical tube 11. At this time, the end of the plug 13 pushes the blocking ball 15 open. At this time, the negative pressure applying mechanism 2 starts to apply negative pressure to the liquid storage tank 6. The negative pressure is transmitted to the fixing component 5 through the connecting tube 3 and the self-closing quick connector 4. The accumulated fluid in the catheter 9 can flow through the gap between the blocking ball 15 and the conical tube 11, and then flow into the connecting tube 3 through the leakage hole 12, and then enter the liquid storage tank 6 for storage. When disassembling, the plug 13 can be pulled out, and the blocking ball 15 is subjected to the elastic force of the spring 16 to block the conical tube 11.

[0030] The device, by providing a self-closing quick connector 4, can realize the quick connection and disassembly of the connecting tube 3 and the catheter 9 on the one hand, and on the other hand, by utilizing the tapered fit between the blocking ball 15 and the tapered tube 11, the tapered tube 11 can be automatically blocked during disassembly, thereby preventing leakage of accumulated fluid and bacterial reflux contamination.

[0031] To solve the stability problem; Figure 3 , 4 As shown, a handle 14 is fixed to the outer wall of the plug 13 , and the handle 14 is sleeved on the outer wall of the tapered tube 11 . The outer wall of the tapered tube 11 is provided with an annular protrusion 17 , and the inner wall of the handle 14 is provided with a slot that cooperates with the annular protrusion 17 .

[0032] By providing the plug handle 14 , the fixing stability between the plug 13 and the tapered tube 11 can be strengthened by the cooperation between the annular protrusion 17 and the clamping groove.

[0033] To solve the storage problem; Figure 5 As shown, the liquid storage tank 6 includes a tank cover 20 fixed to the box body 1 and a tank body 18 connected to the tank cover 20 by threads, the inner wall of the tank cover 20 is provided with a liquid inlet hole 23 and a suction hole 19 connected to the negative pressure applying mechanism 2, the inner wall of the liquid inlet hole 23 is fixed with a plug 22, the connecting pipe 3 is sleeved on the outer wall of the plug 22, and the outer wall of the plug 22 is fixed with a rib protrusion 21.

[0034] The device, by setting the liquid storage tank 6 as a threaded connection between the tank body 18 and the suction hole 19, can conveniently disassemble the tank body 18 for replacement when the accumulated liquid is collected and filled with the spring 16, and the connecting pipe 3 is sleeved on the insert pipe 22, so that the connecting pipe 3 and the tank cover 20 can also be quickly disassembled, and the rib protrusion 21 can increase the stability of the connection between the connecting pipe 3 and the insert pipe 22.

[0035] In order to solve the negative pressure problem; Figure 6As shown, the negative pressure applying mechanism 2 includes a suction tube 24, an automatic opening and closing component 25 and a suction pump 26. The suction pump 26 is fixed to the inner wall of the box body 1, and one end of the suction tube 24 is connected to the suction pump 26, and the other end of the suction tube 24 is connected to the suction hole 19. The automatic opening and closing component 25 is arranged on the top of the suction tube 24.

[0036] When the suction pump 26 is started, it can suck the air in the suction tube 24 , so that negative pressure is generated in the tank body 18 .

[0037] When the present embodiment is in use, the adhesive tape 8 can be attached to the skin, and then the plug 13 can be inserted into the inner wall of the conical tube 11. At this time, the end of the plug 13 will push open the blocking ball 15. When the suction pump 26 is started, it can suck the air in the suction tube 24, so that negative pressure is generated in the tank body 18. The negative pressure is transmitted to the fixing component 5 through the connecting tube 3 and the self-closing quick connector 4. The accumulated fluid in the catheter 9 can flow through the gap between the blocking ball 15 and the conical tube 11, and then flow into the connecting tube 3 through the leakage hole 12, and then enter the liquid storage tank 6 for storage. When disassembling, the plug 13 can be pulled out, and the blocking ball 15 is subjected to the elastic force of the spring 16 to block the conical tube 11.

[0038] Embodiment 2: A thoracic surgical drainage device, such as Figure 7 As shown, in order to solve the problem of automatic control; this embodiment makes the following improvements on the basis of embodiment 1: the automatic opening and closing component 25 includes a cylinder body 27 and a piston 32 slidably connected to the inner wall of the cylinder body 27, the cylinder body 27 is radially slidably connected with a slider 29, one side of the slider 29 is buckled with a spring 28, the other end of the spring 28 is buckled with the inner wall of the cylinder body 27, and the other side of the slider 29 is fixed with an arc head limit rod 30 that limits the piston 32.

[0039] A limit ring 2 35 and a limit ring 1 31 are fixed to the upper and lower parts of the cylinder body 27 respectively; a spring 36 is buckled on the top of the piston 32; the other end of the spring 36 is buckled on the lower surface of the top of the cylinder body 27; an electrode sheet 2 34 is fixed to the bottom outer wall of the limit ring 2 35; an electrode sheet 1 33 cooperating with the electrode sheet 2 34 is fixed to the top outer wall of the piston 32; and the electrode sheets 1 33 and 34 are connected in series to the power supply circuit of the suction pump 26.

[0040] When the present embodiment is in use, in the initial state, there is no negative pressure, and the piston 32 is subjected to the pulling force of the spring three 36 to overcome the elastic limiting force of the arc head limiting rod 30 and move upward, so that the electrode piece 1 33 contacts the electrode piece 2 34, and the circuit of the suction pump 26 is connected and starts working, gradually generating negative pressure. When the negative pressure value reaches the preset maximum value, the piston 32 is also subjected to the negative pressure, thereby overcoming the elastic limiting force of the arc head limiting rod 30 and the pulling force of the spring three 36 and moving downward again, so that the electrode piece 1 33 does not contact the electrode piece 2 34, and the suction pump 26 is automatically closed until the negative pressure gradually decreases to the point where the sum of the suction force of the negative pressure on the piston 32 and the resistance of the arc head limiting rod 30 on the piston 32 is less than the pulling force of the spring three 36, and then the piston 32 moves upward, and the electrode piece 1 33 contacts the electrode piece 2 34 and works again.

[0041] The device is provided with an automatic opening and closing component 25, which can control whether the electrode piece 1 33 is in contact with the electrode piece 2 34 by controlling the piston 32, so that the entire negative pressure suction can be carried out within a certain safe pressure range, and the control is carried out simultaneously by using the negative pressure and the limiting of the spring three 36 and the arc head limiting rod 30, and the opening and closing control of the suction pump 26 can be automatically performed according to the change of the negative pressure, thereby simplifying the control logic.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thoracic surgical drainage device, comprising a housing (1), characterized in that: The box body (1) is provided with a liquid storage tank (6) and a negative pressure applying mechanism (2) for applying negative pressure to the liquid storage tank (6); the top of the liquid storage tank (6) is connected to a connecting pipe (3); the other end of the connecting pipe (3) is connected to a fixing component (5) fixed to the chest or abdominal cavity of a patient via a self-closing quick connector (4); The fixing assembly (5) comprises an adhesive patch (8), a fixing head (10) fixed to the adhesive patch (8), and a catheter (9) fixed to the fixing head (10); The self-closing quick connector (4) comprises a conical tube (11) fixed to and connected to a conduit (9) and a plug (13) fixed to and connected to a connecting tube (3); a plug ball (15) is provided on the inner wall of the conical tube (11); the plug ball (15) is connected to the inner wall of the conical tube (11) via a spring (16); and uniform leakage holes (12) are provided at the end of the plug (13).

2. A thoracic surgery drainage device according to claim 1, characterized in that: The plug (13) and the tapered tube (11) are in transition fit.

3. A thoracic surgery drainage device according to claim 1, characterized in that: The diameter of the blocking ball (15) is greater than the minimum diameter of the tapered tube (11) and smaller than the maximum diameter of the tapered tube (11).

4. A thoracic surgery drainage device according to claim 1, characterized in that: The outer wall of the plug (13) is fixed with an insert handle (14), which is sleeved on the outer wall of the conical tube (11), and the outer wall of the conical tube (11) is provided with an annular protrusion (17), and the inner wall of the insert handle (14) is provided with a slot that matches the annular protrusion (17).

5. A thoracic surgery drainage device according to claim 1, characterized in that: The liquid storage tank (6) comprises a tank cover (20) fixed to the box body (1) and a tank body (18) connected to the tank cover (20) by means of threads, and the inner wall of the tank cover (20) is provided with a liquid inlet hole (23) and a suction hole (19) connected to the negative pressure applying mechanism (2).

6. A thoracic surgery drainage device according to claim 5, characterized in that: An insert tube (22) is fixed to the inner wall of the liquid inlet hole (23), the connecting tube (3) is sleeved on the outer wall of the insert tube (22), and a ridge protrusion (21) is fixed to the outer wall of the insert tube (22).

7. A thoracic surgery drainage device according to claim 5, characterized in that: The negative pressure applying mechanism (2) comprises a suction tube (24), an automatic opening and closing component (25) and a suction pump (26); the suction pump (26) is fixed to the inner wall of the box body (1); one end of the suction tube (24) is connected to the suction pump (26); the other end of the suction tube (24) is connected to the suction hole (19); and the automatic opening and closing component (25) is arranged on the top of the suction tube (24).

8. A thoracic surgery drainage device according to claim 7, characterized in that: The automatic opening and closing assembly (25) comprises a cylinder body (27) and a piston (32) slidably connected to the inner wall of the cylinder body (27); a slider (29) is radially slidably connected to the cylinder body (27); a spring 2 (28) is buckled on one side of the slider (29); the other end of the spring 2 (28) is buckled on the inner wall of the cylinder body (27); and an arc-shaped limit rod (30) is fixed on the other side of the slider (29) for limiting the piston (32).

9. A thoracic surgery drainage device according to claim 8, characterized in that: A second limiting ring (35) and a first limiting ring (31) are fixed to the upper and lower parts of the cylinder body (27), respectively; a third spring (36) is buckled on the top of the piston (32); the other end of the third spring (36) is buckled on the lower surface of the top of the cylinder body (27); a second electrode sheet (34) is fixed to the bottom outer wall of the second limiting ring (35); and a first electrode sheet (33) that cooperates with the second electrode sheet (34) is fixed to the top outer wall of the piston (32).

10. A thoracic surgery drainage device according to claim 9, characterized in that: The electrode sheet 1 (33) and the electrode sheet 2 (34) are connected in series to the power supply circuit of the suction pump (26).

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