Puncture drainage device for malignant ascites

Abstract

The invention discloses a puncture drainage device for malignant ascites, relates to the technical field of medical instruments, and provides the following scheme that the puncture drainage device comprises an insertion tube, a discharge tube is mounted on the side wall of the insertion tube, a storage box is inserted into the bottom end of the discharge tube, the storage box is provided with an air pump, and the input end of the air pump is connected with a floating ball; the inserting end of the inserting pipe is movably sleeved with a fixing block, a rotating block is rotationally connected to the fixing block, a pressing wheel is connected to the rotating block and abuts against the surface of the inserting pipe, the two sides of the fixing block are slidably connected with a sliding frame, a pair of winding rollers is arranged on the sliding frame, and a wiping cotton belt is wound around the winding rollers. The state of the insertion pipe is adjusted through the pressing wheel, negative pressure is formed in the storage box through the air pump, ascites can be conveniently extracted, the floating ball enables the air suction pipe opening to stretch into the liquid level, accordingly, ascites cannot be extracted, a patient can slightly move and rotate a third rotary knob, a wiping cotton belt can wipe the skin opening position, percolate is sucked, infection is avoided, and the patient is prevented from being infected. And the wound is kept clean.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a puncture and drainage device for malignant ascites. Background Art

[0002] An ascites puncture and drainage device is an instrument that is inserted into the abdomen through a puncture tube and drains ascites into a drainage bag.

[0003] After searching, the Chinese invention patent, announcement number: CN110215547B, named: A malignant ascites puncture and drainage device, the invention is to set a ring-arranged flower piece on the tube body of the puncture tube, when the puncture tube is inserted into the abdomen, the flower piece can also smoothly enter the human body, and can push the sliding sleeve outward, so that the sliding sleeve drives the core plate to be completely withdrawn from the core groove. Since the flower piece is a shape memory rubber, and the temperature of ascites is the same as that of the human body, the flower piece rises in memory and deforms into an outward-turned shape after absorbing the temperature. In addition, the elastic deformation of the spring piece assists in the rolling, so that the flower piece can be stuck in the abdomen to prevent it from falling off due to abdominal contraction and extension when the patient breathes.

[0004] However, in actual use, the above and similar technical solutions still have some problems:

[0005] 1. When relying on gravity for body fluid drainage, the storage box needs to be placed below the body, which greatly restricts the patient's freedom of movement and is not conducive to walking and other exercises. In addition, during some surgeries, ascites may contain blood clots. Once the blood clots enter the drainage tube, gravity alone is difficult to push them to move in the tube, thus affecting the smoothness and effectiveness of drainage.

[0006] 2. To facilitate the patient's turning over, the drainage tube is usually bent outside the skin. However, this bending can easily cause the drainage tube to deform, leading to lumen obstruction. Once the drainage tube is blocked, body fluids will not be able to flow out normally, seriously affecting the drainage effect and even having an adverse effect on the patient's treatment process and physical recovery.

[0007] 3. Body fluids are easy to seep out of the punctured skin opening. If not cleaned in time, it is very easy to cause infection. However, in actual operation, adhesive cloth is usually used to fix the drainage tube, and the adhesive cloth will cover the skin opening, which makes it difficult for medical staff to directly observe the condition of the opening and is not convenient for timely cleaning of the seeped body fluids, increasing the risk of infection. Summary of the Invention

[0008] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a puncture and drainage device for malignant ascites that is easy to clean the puncture port, easy to bend the drainage tube, and has low requirements on the location of the storage box.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A puncture drainage device for malignant ascites, comprising an insertion tube, the insertion tube being connected to a discharge mechanism, the discharge mechanism comprising a discharge tube, a discharge tube of a communicating tube being mounted on a side wall of the insertion tube, a plug being plugged into a discharge end of the insertion tube, a communicating storage box being plugged into a bottom end of the discharge tube, the storage box being equipped with an air pump, a communicating connecting tube being mounted on an input end of the air pump, one end of the connecting tube being plugged into the storage box, the connecting tube being connected to a floating mechanism, the floating mechanism comprising an air suction tube, a communicating air suction tube being mounted on one end of the connecting tube located inside the storage box, and a sleeved floating ball being mounted on the end of the air suction tube;

[0011] The insertion end of the insertion tube is connected to a fixing mechanism, which includes a fixing block. The insertion end of the insertion tube is movably sleeved with the fixing block. A patch ring is attached to one side of the fixing block, and one side of the patch ring is adhered to the skin. A rotating block is rotatably connected to the fixing block, and a pressure wheel is connected to the rotating block, and the pressure wheel contacts the surface of the insertion tube.

[0012] The fixed block is connected to a cleaning mechanism, which includes a sliding frame. Both sides of the fixed block are slidably connected to the sliding frame. The sliding frame is provided with a pair of rollers, and a wiping cotton belt is wound around the pair of rollers. The bottom side of the wiping cotton belt contacts the skin surface.

[0013] Preferably, the storage box is equipped with a storage basket, the storage box is placed inside the storage basket, the air pump is installed on the outer wall of the storage basket, a controller is installed on the outer wall of the storage basket, the air pump is electrically connected to the controller, the storage basket has a built-in battery, and a hook is installed on one side of the storage basket.

[0014] Preferably, the floating ball is provided with a filter at the air inlet end of the suction pipe, a weight is provided at the end of the floating ball facing away from the filter, a liquid leakage sensor is provided at the end of the floating ball close to the filter, and the liquid leakage sensor is electrically connected to the controller.

[0015] Preferably, the rotating block is connected to an adjusting assembly, the adjusting assembly includes a support rod, a pair of support rods are rotatably connected to the rotating block, the pressure wheel is fixed between the pair of support rods, a worm gear is installed on the rotating shaft of one of the support rods, and a worm is rotatably connected to the rotating block, and the worm is engaged with the worm gear.

[0016] Preferably, a rotating ring is installed at the bottom end of the rotating block, the rotating ring is rotatably connected to the fixed block, the rotating ring is movably sleeved with the insertion tube, and the bottom end of the rotating ring contacts the surface of the wiping cotton belt.

[0017] Preferably, a pressure block is slidably connected to the rotating block, the top end of the pressure block is in contact with the outer wall of the insertion tube, the bottom end of the pressure block is in contact with the surface of the fixed block, the bottom end of the pressure block is provided with a second friction wall, the surface of the fixed block is provided with a first friction wall, and the second friction wall is in contact with the first friction wall.

[0018] Preferably, the sliding frame is connected to a driving assembly, the driving assembly includes a rack, the side wall of the sliding frame is installed with a rack, the fixed block is rotatably connected to a gear, and a pair of the racks are respectively engaged with both sides of the gear.

[0019] Preferably, a telescopic rod is provided between the two sliding frames, and the two ends of the telescopic rod are respectively rotated on the two sliding frames, and a third knob is installed at one end of the telescopic rod, and the third knob extends into the outer wall of the sliding frame. A pair of rings are rotatably connected to the sliding frame, and a pair of rollers are respectively plugged into the pair of rings, and pulleys are installed on both ends of the telescopic rod and the two rings at the same end, and a belt is connected between the extended ring and the telescopic rod through the pulley.

[0020] Preferably, the sliding frame is connected to a limiting assembly, and the limiting assembly includes a moving block, a moving block is slidably connected to the sliding frame, a spring is installed between the moving block and the sliding frame, and a bracket is rotatably connected to the moving block, and the bracket is in a "Y" shape. Both ends of the "Y" shape of the bracket are rotatably connected to pressure rollers, and the pressure rollers are in contact with the surface of the wiping cotton belt, and the wiping cotton belt is in contact with the skin surface through the pressure rollers, and a second knob is rotatably connected to the sliding frame, and a slider is slidably connected to the sliding frame, and the slider is threadedly connected to the second knob, and the bottom side of the slider is in contact with the bracket.

[0021] Preferably, a first knob is threadedly connected to the fixing block, and a threaded end of the first knob abuts against one of the sliding frames.

[0022] Compared with the prior art, the present invention provides a puncture and drainage device for malignant ascites, which has the following beneficial effects:

[0023] 1. The puncture and drainage device for malignant ascites rotates the worm to make the pressure wheel vertical, thereby facilitating the bending and sliding of the insertion tube and facilitating the insertion of the insertion tube into the body. When the insertion tube reaches the guide wire insertion position, the guide wire is pulled out and the plug is inserted to make the fixing block close to the skin and stick it to the skin through the adhesive ring to limit the movement of the fixing block and adjust the bending direction of the insertion tube. The rotating block rotates and the worm is rotated in the opposite direction. The pressure wheel pushes the insertion tube to bend and squeezes the insertion tube, thereby bending and limiting the insertion tube, preventing the insertion tube from being pulled when the patient moves, thereby avoiding damage to the body.

[0024] 2. The puncture and drainage device for malignant ascites can use gravity to allow ascites to drain into the insertion tube by itself. When manual intervention is required, the air pump is started to form negative pressure in the storage box, thereby extracting ascites from the abdominal cavity through the discharge tube and the insertion tube. By adjusting the power of the air pump, the ascites extraction rate can be adjusted to avoid abdominal cavity decompression. When ascites enters the storage box, the floating ball floats up. Under the action of the weight, the filter disc is horizontally upward, thereby ensuring that ascites will not be extracted when air is extracted. This makes it easy to place the storage box at any position without having to be upright, so that the patient can also do slight exercises, increasing practicality.

[0025] 3. The puncture and drainage device for malignant ascites is used. Liquid exudates easily appear at the skin opening where ascites is extracted. The liquid can be absorbed by the wiping cotton belt. Turning the third knob causes the wiping cotton belt to reel in, and the roller at the other end releases the wiping cotton belt to wipe the skin opening and absorb the exudate, thereby avoiding infection and keeping the wound clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A stereoscopic view of a puncture and drainage device for malignant ascites proposed by the present invention;

[0027] Figure 2 A view of the ring connection structure of the present invention;

[0028] Figure 3 A view of the pressure wheel connection structure of the present invention;

[0029] Figure 4 A view of a pressing block connection structure of the present invention;

[0030] Figure 5 A view of a first friction wall connection structure of the present invention;

[0031] Figure 6 A view of a sliding frame connection structure of the present invention;

[0032] Figure 7 A view of the support connection structure of the present invention;

[0033] Figure 8 A view of a connecting structure of a wiping cotton belt according to the present invention;

[0034] Figure 9 A view of the air pump connection structure of the present invention;

[0035] Figure 10 A view of the floating ball connection structure of the present invention;

[0036] Figure 11 This is a view of the connection structure of the liquid leakage sensor of the present invention.

[0037] In the figure: 1. Insertion tube; 2. Discharge mechanism; 21. Storage basket; 22. Plug; 23. Storage box; 24. Air pump; 25. Connecting tube; 26. Hook; 27. Discharge tube; 3. Controller; 4. Fixing mechanism; 41. Adhesive ring; 42. Fixing block; 43. First friction wall; 44. Rotating block; 45. Pressing wheel; 46. Pressing block; 47. Adjusting assembly; 471. Worm; 472. Support rod; 473. Worm gear; 48. Rotating ring; 49. Second friction wall; 5. Floating mechanism; 51. Suction pipe; 52. Floating ball; 53. Weight; 54. Leakage sensor; 55. Filter; 6. Cleaning mechanism; 61. Sliding rack; 62. First knob; 63. Limiting assembly; 631. Second knob; 632. Pressure roller; 633. Bracket; 634. Slider; 635. Spring; 636. Moving block; 64. Driving assembly; 641. Rack; 642. Gear; 643. Telescopic rod; 645. Belt; 646. Third knob; 65. Wiping cotton belt; 66. Roller; 67. Ring. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments.

[0039] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0040] Example 1: Reference Figures 1-11 The bottom end of the discharge tube 27 is connected to a receiving box 23 for convenient extraction of the guide wire. The receiving box 23 is provided with an air pump 24. The input end of the air pump 24 is provided with a connecting pipe 25. One end of the connecting pipe 25 is connected to the receiving box 23. The connecting pipe 25 is connected to a floating mechanism 5. The floating mechanism 5 includes an air suction pipe 51. One end of the connecting pipe 25 located inside the receiving box 23 is provided with a connecting air suction pipe 51. The end of the air suction pipe 51 is provided with a floating ball 52. The floating ball 52 can float on the surface of the collected ascites to prevent ascites from entering the interior of the air suction pipe 51 when the air pump 24 is pumping air.

[0041] In the present invention, the storage box 23 is equipped with a storage basket 21, the storage box 23 is placed inside the storage basket 21, the air pump 24 is installed on the outer wall of the storage basket 21, the controller 3 is installed on the outer wall of the storage basket 21, the air pump 24 is electrically connected to the controller 3, the storage basket 21 has a built-in battery, and a hook 26 is installed on one side of the storage basket 21, so as to facilitate the placement of the storage box 23, and the storage basket 21 is conveniently hung through the hook 26.

[0042] In the present invention, a floating ball 52 is located at the air inlet end of the suction pipe 51 and is installed with a filter 55. A weight 53 is installed at the end of the floating ball 52 facing away from the filter 55. A leakage sensor 54 is installed at the end of the floating ball 52 close to the filter 55. The specific model is: TFP-F-5M, corrosion-resistant type, suitable for acid / alkali environment. The leakage sensor 54 is electrically connected to the controller 3, so as to facilitate timely determination of whether the storage box 23 is full. At the same time, the amount of ascites extracted can be judged according to the volume of gas extracted by the air pump 24. The air pump 24 has a built-in flow meter.

[0043] Example 2: Based on Example 1, a puncture and drainage device for malignant ascites is provided, wherein the insertion end of the insertion tube 1 is connected to a fixing mechanism 4, which includes a fixing block 42. The insertion end of the insertion tube 1 is movably sleeved with the fixing block 42, and a sticking ring 41 is adhered to one side of the fixing block 42, and one side of the sticking ring 41 is adhered to the skin. A rotating block 44 is rotatably connected to the fixing block 42, and a pressing wheel 45 is connected to the rotating block 44. The pressing wheel 45 contacts the surface of the insertion tube 1, thereby facilitating bending and fixing the insertion tube 1.

[0044] In the present invention, an adjusting component 47 is connected to the rotating block 44, and the adjusting component 47 includes a support rod 472. A pair of support rods 472 are rotatably connected to the rotating block 44, and the pressure wheel 45 is fixed between the pair of support rods 472. A worm gear 473 is installed on the rotating shaft of one of the support rods 472, and a worm 471 is rotatably connected to the rotating block 44. The worm 471 is engaged with the worm gear 473, so as to facilitate driving the pressure wheel 45 to swing, and the self-locking principle of the worm gear 473 and the worm 471 is utilized to facilitate limiting the pressure wheel 45.

[0045] In the present invention, a rotating ring 48 is installed at the bottom end of the rotating block 44, and the rotating ring 48 is rotatably connected to the fixed block 42. The rotating ring 48 is movably connected to the insertion tube 1. The bottom end of the rotating ring 48 contacts the surface of the wiping cotton belt 65, thereby preventing the wiping cotton belt 65 from turning outward too much. A semicircle of a fixed distance is cut on the wiping cotton belt 65 to facilitate the fit with the insertion tube 1, ensuring the contact between the wiping cotton belt 65 and the skin, and facilitating wiping.

[0046] In the present invention, a pressing block 46 is slidably connected to the rotating block 44. The top end of the pressing block 46 contacts the outer wall of the insertion tube 1, and the bottom end of the pressing block 46 contacts the surface of the fixed block 42. The bottom end of the pressing block 46 is provided with a second friction wall 49, and the surface of the fixed block 42 is provided with a first friction wall 43. The second friction wall 49 contacts the first friction wall 43, thereby firmly limiting the rotating block 44 and preventing rotation.

[0047] Example 3: Based on Example 2, a puncture and drainage device for malignant ascites is provided, wherein a cleaning mechanism 6 is connected to the fixed block 42, and the cleaning mechanism 6 includes a sliding frame 61. Both sides of the fixed block 42 are slidably connected to the sliding frame 61, and a pair of rollers 66 are provided on the sliding frame 61. A wiping cotton belt 65 is wound around the pair of rollers 66, and the bottom side of the wiping cotton belt 65 contacts the skin surface, thereby facilitating wiping of liquid exuding from the opening.

[0048] In the present invention, a driving assembly 64 is connected to the sliding frame 61, and the driving assembly 64 includes a rack 641. The side wall of the sliding frame 61 is installed with a rack 641, and a gear 642 is rotatably connected to the fixed block 42. A pair of racks 641 are respectively engaged with the two sides of the gear 642, thereby facilitating the simultaneous pulling out of the two sliding frames 61.

[0049] In the present invention, a telescopic rod 643 is provided between the two sliding frames 61, and the two ends of the telescopic rod 643 are respectively rotated on the two sliding frames 61. One end of the telescopic rod 643 is installed with a third knob 646, and the third knob 646 extends into the outer wall of the sliding frame 61. A pair of rings 67 are rotatably connected to the sliding frame 61, and a pair of rollers 66 are respectively plugged into the pair of rings 67. Pulleys are installed on both ends of the telescopic rod 643 and the two rings 67 at the same end. A belt 645 is connected between the extended ring 67 and the telescopic rod 643 through a pulley, so as to facilitate driving the roller 66 to rotate, thereby facilitating the release and reeling of the wiping cotton belt 65.

[0050] In the present invention, the sliding frame 61 is connected to a limiting component 63, and the limiting component 63 includes a moving block 636. The sliding frame 61 is slidably connected to the moving block 636, and a spring 635 is installed between the moving block 636 and the sliding frame 61. The moving block 636 is rotatably connected to a bracket 633, and the bracket 633 is "Y"-shaped. Both ends of the "Y" shape of the bracket 633 are rotatably connected to pressure rollers 632, and the pressure rollers 632 are in contact with the surface of the wiping cotton belt 65. The wiping cotton belt 65 is in contact with the skin surface through the pressure rollers 632. The sliding frame 61 is rotatably connected to a second knob 631, and the sliding frame 61 is slidably connected to a slider 634. The slider 634 is threadedly connected to the second knob 631, and the bottom side of the slider 634 is in contact with the bracket 633.

[0051] In the present invention, a first knob 62 is threadedly connected to the fixing block 42, and the threaded end of the first knob 62 contacts one of the sliding frames 61, thereby pressurizing the wiping cotton belt 65 to make it contact with the skin surface and absorb the exudate.

[0052] Working principle: During puncture and drainage, puncture is performed through the puncture needle, and then the guide wire is inserted, the puncture needle is pulled out, the skin expander is inserted to expand the skin, the skin expander is pulled out, the insertion tube 1 is inserted, and the discharge end of the guide wire insertion tube 1 is extended. In the initial state, the worm 471 is rotated. A knob is installed at one end of the worm 471 to facilitate the rotation of the worm 471. When the worm 471 rotates, it drives the worm wheel 473 and the support rod 472 to rotate, so that the pressure wheel 45 is vertical, which facilitates the bending and sliding of the insertion tube 1 and facilitates the insertion of the insertion tube 1 into the body. When the insertion tube 1 reaches the guide wire insertion position, the guide wire is pulled out, the plug 22 is inserted, and the fixing block 42 is close to the skin, and the ring 41 is passed through. It is attached to the skin to limit the movement of the fixing block 42 and adjust the bending direction of the insertion tube 1. The rotating block 44 can be rotated to reversely rotate the worm 471 to drive the worm wheel 473 and the support rod 472 to rotate, so that the pressing wheel 45 bends. The pressing wheel 45 pushes the insertion tube 1 to bend and squeezes the insertion tube 1. The outer wall of the insertion tube 1 contacts the pressing block 46. The pressing wheel 45 is provided with a groove to avoid blocking the insertion tube 1 and ensure the flow of ascites. The bottom end of the pressing block 46 contacts the first friction wall 43 through the second friction wall 49, thereby limiting the rotation of the rotating block 44, thereby bending and limiting the insertion tube 1, preventing the insertion tube 1 from being pulled when the patient moves, and avoiding damage to the body;

[0053] The storage box 23 is hung on the bed through the storage basket 21 and the hook 26. When it is lower than the patient's body, the ascites can be discharged into the insertion tube 1 by gravity. When manual intervention is required, the connecting tube 25 is inserted into the top of the storage box 23, and the air pump 24 is started by the controller 3. The air pump 24 exhausts air outward, thereby forming a negative pressure in the connecting tube 25. The air is extracted through the suction tube 51 and filtered by the filter 55, forming a negative pressure in the storage box 23. The ascites in the abdominal cavity is extracted through the discharge tube 27 and the insertion tube 1. The extraction speed can be adjusted by adjusting the power of the air pump 24. The floating ball 52 inside the storage box 23 floats up and is prevented from losing pressure in the abdominal cavity. Under the action of the weight 53, the filter 55 is moved horizontally upward, thereby ensuring that ascites is not extracted when air is extracted. The filter 55 plays a filtering role, preventing the ascites from entering the air pump 24, thereby facilitating the placement of the storage box 23 at any position without being vertical, so that the patient can also do slight movements. When the extracted ascites is almost full, the ascites submerges the leakage sensor 54, thereby transmitting an electrical signal to the controller 3, shutting down the air pump 24, thereby facilitating timely replacement of the storage box 23 and increasing practicality.

[0054] The skin opening where ascites is extracted is prone to liquid exudation, which can be absorbed by the wiping cotton belt 65 to avoid accumulation and infection. Turn the third knob 646 to drive the telescopic rod 643 to rotate, and the ring 67 on the same side is driven to rotate by the belt 645 and the pulley, thereby driving the roller 66 to rotate, driving the wiping cotton belt 65 to retract, and the roller 66 at the other end releases the wiping cotton belt 65, thereby wiping the skin opening and absorbing the exudate. The fixed block 42 is made of transparent material, which is convenient for observing the use of the wiping cotton belt 65. When the wiping cotton belt 65 needs to be replaced, turn the first knob 646 to rotate. The button 62 is turned to release the limit on the sliding frame 61, and the second knob 631 is turned to drive the slider 634 to slide, thereby releasing the limit on the bracket 633. Under the action of the spring 635, the compressed spring 635 is extended, thereby pushing the moving block 636 to move upward, and the pressure roller 632 is moved upward to pull out the sliding frame 61. Under the action of the rack 641 and the gear 642, the pair of sliding frames 61 are extended at the same time, the telescopic rod 643 is extended, and the bracket 633 is flipped upward, so that the winding roller 66 can be pulled out from the ring 67, which is convenient for replacement. A new wiping cotton belt 65 is replaced to facilitate work again.

[0055] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A puncture drainage device for malignant ascites, comprising an insertion tube (1), to which a discharge mechanism (2) is connected, characterized in that: The discharge mechanism (2) includes a discharge pipe (27), a discharge pipe (27) of a connecting pipe is installed on the side wall of the insertion tube (1), a plug (22) is plugged into the discharge end of the insertion tube (1), a connected storage box (23) is plugged into the bottom end of the discharge pipe (27), the storage box (23) is equipped with an air pump (24), a connected connecting pipe (25) is installed at the input end of the air pump (24), one end of the connecting pipe (25) is plugged into the storage box (23), a floating mechanism (5) is connected to the connecting pipe (25), the floating mechanism (5) includes an air intake pipe (51), one end of the connecting pipe (25) located inside the storage box (23) is installed with a connected air intake pipe (51), and a sleeved floating ball (52) is installed at the end of the air intake pipe (51); The insertion end of the insertion tube (1) is connected to a fixing mechanism (4), the fixing mechanism (4) includes a fixing block (42), the insertion end of the insertion tube (1) is movably sleeved with the fixing block (42), one side of the fixing block (42) is adhered with a sticking ring (41), one side of the sticking ring (41) is adhered to the skin, the fixing block (42) is rotatably connected to a rotating block (44), the rotating block (44) is connected to a pressing wheel (45), and the pressing wheel (45) contacts the surface of the insertion tube (1); The fixed block (42) is connected to a cleaning mechanism (6), and the cleaning mechanism (6) includes a sliding frame (61). Both sides of the fixed block (42) are slidably connected to the sliding frame (61). The sliding frame (61) is provided with a pair of rollers (66). A wiping cotton belt (65) is wound around the pair of rollers (66). The bottom side of the wiping cotton belt (65) contacts the skin surface.

2. The puncture and drainage device for malignant ascites according to claim 1, characterized in that: The storage box (23) is equipped with a storage basket (21), the storage box (23) is placed inside the storage basket (21), the air pump (24) is installed on the outer wall of the storage basket (21), a controller (3) is installed on the outer wall of the storage basket (21), the air pump (24) is electrically connected to the controller (3), the storage basket (21) has a built-in battery, and a hook (26) is installed on one side of the storage basket (21).

3. The puncture and drainage device for malignant ascites according to claim 2, characterized in that: The floating ball (52) is located at the air inlet end of the air intake pipe (51) and is installed with a filter (55). The end of the floating ball (52) facing away from the filter (55) is installed with a weight (53). The end of the floating ball (52) close to the filter (55) is installed with a liquid leakage sensor (54). The liquid leakage sensor (54) is electrically connected to the controller (3).

4. The puncture and drainage device for malignant ascites according to claim 1, characterized in that: The rotating block (44) is connected to an adjusting assembly (47), and the adjusting assembly (47) includes a support rod (472). The rotating block (44) is rotatably connected to a pair of support rods (472). The pressure wheel (45) is fixed between the pair of support rods (472). A worm gear (473) is installed on the rotating shaft of one of the support rods (472). The rotating block (44) is rotatably connected to a worm (471), and the worm gear (471) is engaged with the worm gear (473).

5. The puncture and drainage device for malignant ascites according to claim 1, characterized in that: A rotating ring (48) is installed at the bottom end of the rotating block (44), the rotating ring (48) is rotatably connected to the fixed block (42), the rotating ring (48) is movably sleeved with the insertion tube (1), and the bottom end of the rotating ring (48) is in contact with the surface of the wiping cotton belt (65).

6. The puncture and drainage device for malignant ascites according to claim 1, characterized in that: A pressing block (46) is slidably connected to the rotating block (44), the top end of the pressing block (46) contacts the outer wall of the insertion tube (1), the bottom end of the pressing block (46) contacts the surface of the fixed block (42), the bottom end of the pressing block (46) is provided with a second friction wall (49), the surface of the fixed block (42) is provided with a first friction wall (43), and the second friction wall (49) contacts the first friction wall (43).

7. The puncture and drainage device for malignant ascites according to claim 1, characterized in that: The sliding frame (61) is connected to a driving assembly (64), the driving assembly (64) includes a rack (641), a side wall of the sliding frame (61) is mounted with a rack (641), a gear (642) is rotatably connected to the fixed block (42), and a pair of the racks (641) are respectively engaged with both sides of the gear (642).

8. The puncture and drainage device for malignant ascites according to claim 1, characterized in that: A telescopic rod (643) is provided between the two sliding frames (61), and both ends of the telescopic rod (643) are respectively rotated on the two sliding frames (61). One end of the telescopic rod (643) is installed with a third knob (646), and the third knob (646) extends into the outer wall of the sliding frame (61). A pair of rings (67) are rotatably connected to the sliding frame (61), and a pair of rollers (66) are respectively plugged into the pair of rings (67). Pulleys are installed on both ends of the telescopic rod (643) and the two rings (67) at the same end. A belt (645) is wound around the extended ring (67) and the telescopic rod (643) through the pulley.

9. The puncture and drainage device for malignant ascites according to claim 1, characterized in that: The sliding frame (61) is connected to a limit assembly (63), and the limit assembly (63) includes a moving block (636). The sliding frame (61) is slidably connected to the moving block (636), and a spring (635) is installed between the moving block (636) and the sliding frame (61). The moving block (636) is rotatably connected to a bracket (633), and the bracket (633) is in a "Y" shape. Both ends of the "Y" shape of the bracket (633) are rotatable. A pressure roller (632) is connected, the pressure roller (632) contacts the surface of the wiping cotton belt (65), and the wiping cotton belt (65) contacts the skin surface through the pressure roller (632). A second knob (631) is rotatably connected to the sliding frame (61), and a slider (634) is slidably connected to the sliding frame (61). The slider (634) is threadedly connected to the second knob (631), and the bottom side of the slider (634) contacts the bracket (633).

10. The puncture and drainage device for malignant ascites according to claim 1, characterized in that: A first knob (62) is threadedly connected to the fixed block (42), and a threaded end of the first knob (62) abuts against one of the sliding frames (61).

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