Novel peritoneal puncture drainage device for ascites due to cirrhosis

Abstract

The invention discloses a novel peritoneal puncture and drainage device for ascites due to cirrhosis, relates to the field of medical equipment, and solves the problem that an existing puncture and drainage device is prone to causing unstable puncture, the novel peritoneal puncture and drainage device comprises a puncture needle and a syringe mounted at the upper end of the puncture needle, and a connecting pipe is mounted at one end of the puncture needle; one end of the syringe is fixedly connected with a butt joint pipe, a piston block is arranged on the inner side of the syringe in a limited sliding mode, a pull rod is fixedly installed on the top of the piston block, a sealing cover is fixedly installed on the top of the syringe, four positioning strips distributed at equal intervals are fixedly connected to the outer side of the pull rod, and a wire guide pipe is installed on the outer side of the butt joint pipe. The outer side of the injection cylinder is provided with a skin abutting mechanism assisting in aligning with the puncture needle, the injection cylinder is locked through the skin abutting mechanism, displacement of the puncture needle can be prevented, and therefore the effect of conveniently and stably extracting hydrops is achieved.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, in particular to a novel peritoneal puncture and drainage device for ascites caused by liver cirrhosis. Background Art

[0002] Cirrhosis is a common chronic liver disease in clinical practice with complex causes, such as viral infection and alcohol poisoning. Ascites is one of the common complications in the late stage of cirrhosis. It can be diagnosed through abdominal color ultrasound and requires timely treatment after diagnosis.

[0003] Ascites in cirrhosis is usually a manifestation of late-stage cirrhosis. A large amount of fluid accumulates in the patient's abdominal cavity, causing abdominal distension, which is often very painful. At this time, abdominal puncture is required to release the ascites, reduce abdominal cavity pressure, and relieve the patient's symptoms, which is of great help in the diagnosis and treatment of the disease.

[0004] The puncture device consists of a puncture needle and a syringe. The puncture needle is inserted into the patient's anesthesia point, and then part of the accumulated fluid is extracted with a syringe. Then a guide wire is inserted and the puncture needle is removed. Finally, a catheter is inserted to drain the fluid. However, the amount of fluid accumulated in each person is different, and the tightness of the skin is slightly different. It is easy to be unstable during the puncture process. For this reason, we have proposed a new type of peritoneal puncture and drainage device for ascites in cirrhosis. Summary of the Invention

[0005] The purpose of the present invention is to provide a novel peritoneal puncture and drainage device for ascites caused by cirrhosis of the liver, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A novel peritoneal puncture and drainage device for ascites due to liver cirrhosis, comprising a puncture needle and a syringe mounted on the upper end of the puncture needle, a connecting tube being mounted on the end of the puncture needle close to the syringe, a butt joint being fixedly connected to the end of the syringe close to the puncture needle, the butt joint being plugged into the inner side of the connecting tube, a piston block being provided on the inner side of the syringe for limiting sliding, the bottom of the piston block being a conical structure, a pull rod extending to the outer side of the syringe being fixedly mounted on the top of the piston block, the end of the pull rod away from the piston block being a circular flat plate structure, a sealing cover being fixedly mounted on the top of the syringe, and the outer side of the pull rod being fixedly connected to There are four equidistantly distributed positioning strips, which are in a cross structure. An opening is provided on the top of the sealing cover for the pull rod and the positioning strip to slide in a limited manner. A guide wire tube is installed on the outside of the docking tube for inserting a drainage guide wire. The guide wire tube is tilted on the outside of the docking tube. The guide wire enters the docking tube through the guide wire tube and is then inserted into the inner side of the puncture needle through the docking tube. A skin-resistant mechanism is installed on the outside of the syringe to assist in aligning the puncture needle; a wire insertion mechanism is used to seal and dock the guide wire tube. The wire insertion mechanism is installed on the outside of the guide wire tube. A tube grip mechanism is installed on the outside of the sealing cover to facilitate pressing the pull rod.

[0007] Preferably, the skin-resisting mechanism includes two positioning frames symmetrically fixedly mounted on the outside of the injection barrel, the two sides of the positioning frame are open structures, the inner side of the positioning frame is limited and slidably provided with a support plate, a retaining ring is fixedly connected between the two support plates, the center point of the retaining ring is located directly below the puncture needle, the support plate is fixedly connected to a side close to the injection barrel with a plurality of vertically equidistantly distributed clamping strips, the top of the clamping strip is a sloped structure, and the bottom of the clamping strip is a flat structure, the inner sides of both ends of the positioning frame are fixedly connected with a mounting plate, the mounting plate is fixedly connected to a side close to the support plate with a plurality of equidistantly distributed elastic strips, the elastic strips are an inclined structure, and the inclination of the elastic strips The angle is upward, and the support plate is fixedly connected to a limiting strip at one end away from the annular ring. The area of ​​the limiting strip is larger than the opening area of ​​the two ends of the positioning frame. The limiting strip is in contact with the top of the positioning frame. An annular disinfectant cotton is installed at the bottom of the annular ring. A cavity for installing the annular disinfectant cotton is opened at the bottom of the annular ring. Before puncture, the medical staff contacts the annular disinfectant cotton with the patient's puncture point to make the annular disinfectant cotton contact the skin, and presses the syringe downward to insert the puncture needle into the patient's abdomen. The elastic strip moves downward through the clamping strip, and when the puncture needle stops moving, the elastic strip presses against the plane of the clamping strip to lock the syringe, thereby locking the puncture needle and facilitating the smooth extraction of the accumulated fluid.

[0008] Preferably, the wire inserting mechanism comprises a mounting pipe mounted outside the guide wire pipe, one end of the mounting pipe is sleeved outside the guide wire pipe, a plurality of equidistant positioning ribs are fixedly connected to the inner side of the end of the mounting pipe close to the guide wire pipe, a clamping groove for limiting the insertion of the positioning ribs is formed in the end of the mounting pipe away from the docking pipe, one end of the clamping groove is an open structure, the mounting pipe is in an arc shape, an anti-skid sleeve is fixedly sleeved outside the mounting pipe, a sealing cylinder is fixedly connected to the end of the mounting pipe away from the guide wire pipe, and a plug-in cylinder is fixedly connected to the end of the sealing cylinder away from the mounting pipe, the plug-in cylinder is in a wide-mouth structure, which facilitates the insertion of the guide wire into the guide wire pipe through the sealing cylinder, when the effusion is extracted, the sealing cylinder provides sealing for the guide wire pipe, and after part of the effusion is extracted, medical staff can insert the guide wire into the guide wire pipe through the plug-in cylinder, so that the guide wire can be inserted into the patient's abdomen through the puncture needle, and the subsequent ascites drainage can be performed, thereby achieving the effect of facilitating the guide wire drainage.

[0009] Preferably, the handle mechanism comprises two positioning grooves symmetrically formed on the two sides of the sealing cover, a positioning rod is limitingly inserted into the inner side of the positioning groove, two symmetrically distributed sleeve seats are fixedly connected to the outer side of the positioning rod, the sleeve seat is in a hollow structure, an arc-shaped groove for limiting the sliding of the sleeve seat is formed in the inner side of the positioning groove, arc-shaped rods are fixedly connected to the two sides of the arc-shaped groove, the sleeve seat is movably sleeved outside the arc-shaped rod, a finger insertion ring is fixedly connected to the end of the positioning rod away from the sleeve seat, which is used for inserting the fingers of medical staff, the two finger insertion rings are respectively located on the two sides of the two supporting plates, a clamping cylinder is fixedly connected to the bottom of the sealing cover, a ring-shaped groove for limitingly inserting the clamping cylinder is formed in the end of the injection cylinder away from the docking pipe, the sealing cover is mounted at the end of the injection cylinder away from the docking pipe through the clamping cylinder, the two finger insertion rings are respectively inserted by the index finger and the middle finger of medical staff, so that the injection cylinder can be held, and when puncturing, medical staff can drive the positioning rod on the finger insertion ring to rotate in the positioning groove, the sleeve seat moves on the arc-shaped rod, and the finger insertion ring swings synchronously with the fingers of medical staff, thereby achieving the effect of facilitating the puncture operation of medical staff.

[0010] Preferably, the bottom of the abutting ring is fixedly connected with a plurality of equidistant insertion rods, the insertion rods are limitingly inserted into the top of the ring-shaped disinfection cotton, and the insertion rods fix the ring-shaped disinfection cotton, thereby achieving the effect of preventing falling off.

[0011] Preferably, the top of the abutting ring is fixedly connected with two symmetrically distributed abutting blocks, the top of the abutting block is in an arc surface structure, which is used for medical staff to press the abutting ring, and the two abutting blocks facilitate the pressing of the fingers of medical staff.

[0012] Preferably, the inner side of the butt ring is fixedly connected to a mounting bar, and a through-hole for inserting the puncture needle is provided on the surface of the mounting bar. Both sides of the through-hole are fixedly connected to a butt piece, and the butt piece is a downwardly inclined arc structure. The puncture needle can pass through the through-hole on the mounting bar and contact the two butt pieces, so that when the puncture needle is inserted into the patient's abdomen, the butt piece can press against the outside of the puncture needle, thereby facilitating the support and positioning of the puncture needle.

[0013] Preferably, a sealing plug is installed at the bottom of the retaining ring, and an opening for inserting the sealing plug is opened at the top of the retaining ring. Medical personnel can open the sealing plug and inject disinfectant into the retaining ring, and then enter the annular disinfection cotton to facilitate wiping the puncture point.

[0014] Preferably, a long sliding groove is provided on the inner side of the positioning frame for limiting the sliding of the support plate, thereby improving the stability of the support plate when moving.

[0015] Preferably, the support plate is an arc-shaped structure, and the opposing surfaces of the two support plates are arc-shaped concave surfaces, thereby improving the supporting force of the support plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a skin-resistant mechanism, a ring in contact with the patient's puncture point, so that the annular sterile cotton contacts the skin, and when the syringe is pressed downward to insert the puncture needle into the patient's abdomen, the elastic strip moves downward through the clamping strip, and the elastic strip can resist the plane of the clamping strip to lock the syringe, thereby preventing the puncture needle from moving, thereby achieving the effect of facilitating and smoothly extracting the accumulated fluid.

[0017] 2. The present invention provides a seal for the guide wire tube through the wire insertion mechanism and the sealing cylinder. After extracting part of the accumulated fluid, the medical staff can insert the guide wire into the guide wire tube through the insertion cylinder, so that the guide wire can be inserted into the patient's abdomen through the puncture needle to drain the patient's ascites, thereby achieving the effect of facilitating guide wire drainage.

[0018] 3. The present invention uses a tube-holding mechanism, and two finger insert rings are respectively inserted by the medical staff's index finger and middle finger to pick up the syringe. The medical staff can drive the positioning rod on the finger insert ring to rotate in the positioning groove, and the sleeve moves on the arc rod, so that the finger insert ring can swing synchronously with the medical staff's fingers, thereby achieving the effect of facilitating the medical staff's puncture operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the annular sterilizing cotton and the puncture needle in the present invention; Figure 3 Schematic diagram of the positioning frame and support plate structure of the present invention; Figure 4for Figure 3 Schematic diagram of the enlarged structure of area A in the middle; Figure 5 Schematic diagram of the structure of the retaining ring and the mounting bar in the present invention; Figure 6 Schematic diagram of the structure of the mounting rod and the guide wire rod in the present invention; Figure 7 This is a schematic diagram of the structure of the middle finger insert ring and the positioning rod of the present invention; Figure 8 Schematic diagram of the arc rod and sleeve structure in the present invention; Figure 9 It is a schematic diagram of the matching structure of the clamping strip and the elastic strip in the present invention.

[0020] Figure: 1, puncture needle; 2, syringe; 3, skin-proof mechanism; 301, positioning frame; 302, support plate; 303, ring; 304, clamping strip; 305, mounting plate; 306, elastic strip; 307, limit strip; 308, ring-shaped disinfection cotton; 4, wire insertion mechanism; 401, mounting tube; 402, positioning rib; 403, clamping groove; 404, anti-slip sleeve; 405, sealing cylinder; 406, insert Cylinder; 5. Tube holding mechanism; 501. Positioning groove; 502. Positioning rod; 503. Sleeve; 504. Arc groove; 505. Arc rod; 506. Finger insert ring; 507. Cardan; 6. Connecting tube; 7. Docking tube; 8. Piston block; 9. Pull rod; 10. Sealing cover; 11. Wire guide tube; 12. Insert rod; 13. Abutment block; 14. Mounting strip; 15. Abutment piece; 16. Sealing plug; 17. Positioning strip. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative inspiration shall fall within the scope of protection of the present invention.

[0022] Example 1 See also Figure 1 、 Figure 2 and Figure 3The figure shows a new type of peritoneal puncture and drainage device for ascites caused by cirrhosis of the liver, comprising a puncture needle 1 and a syringe 2 installed on the upper end of the puncture needle 1. A connecting tube 6 is installed on the end of the puncture needle 1 close to the syringe 2. The end of the syringe 2 close to the puncture needle 1 is fixedly connected to a docking tube 7, which is inserted into the inner side of the connecting tube 6. A piston block 8 is slidingly limited on the inner side of the syringe 2. The bottom of the piston block 8 is a conical structure. A pull rod 9 extending to the outside of the syringe 2 is fixedly installed on the top of the piston block 8. The end of the pull rod 9 away from the piston block 8 is a circular flat plate structure. A sealing cover 10 is fixedly installed on the top of the syringe 2. Four equal parts are fixedly connected to the outside of the pull rod 9. The four positioning bars 17 are distributed at a certain distance, and the four positioning bars 17 are in a cross structure. The top of the sealing cover 10 is provided with an opening for the pull rod 9 and the positioning bar 17 to limit the sliding. A guide wire tube 11 is installed on the outside of the docking tube 7 for inserting the drainage guide wire. The guide wire tube 11 is tilted on the outside of the docking tube 7. The guide wire enters the docking tube 7 through the guide wire tube 11 and is then inserted into the inner side of the puncture needle 1 through the docking tube 7. A skin-resistant mechanism 3 for assisting in aligning the puncture needle 1 is installed on the outside of the injection barrel 2; a wire insertion mechanism 4 is used for sealing and docking the guide wire tube 11. The wire insertion mechanism 4 is installed on the outside of the guide wire tube 11, and a tube holding mechanism 5 for facilitating pressing the pull rod 9 is installed on the outside of the sealing cover 10.

[0023] See also Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the skin-resisting mechanism 3 shown in the figure includes two positioning frames 301 symmetrically fixedly mounted on the outside of the syringe 2, the two sides of the positioning frame 301 are open structures, the inner side of the positioning frame 301 is limited and slidably provided with a support plate 302, a ring 303 is fixedly connected between the two support plates 302, the center point of the ring 303 is located just below the puncture needle 1, the surface of the support plate 302 close to the syringe 2 is fixedly connected with a number of vertically equidistantly distributed clips 304, the top of the clip 304 is a sloped structure, the bottom of the clip 304 is a flat structure, and the inner sides of both ends of the positioning frame 301 are fixedly connected There is a mounting plate 305, and a surface of the mounting plate 305 close to the support plate 302 is fixedly connected to a plurality of equally spaced elastic strips 306. The elastic strips 306 are inclined structures, and the inclination angle of the elastic strips 306 is upward. The end of the support plate 302 away from the annular ring 303 is fixedly connected to a limiting strip 307. The area of ​​the limiting strip 307 is larger than the opening area at both ends of the positioning frame 301. The limiting strip 307 contacts the top of the positioning frame 301. The bottom of the annular ring 303 is installed with an annular disinfection cotton 308, and the bottom of the annular ring 303 is provided with a cavity for installing the annular disinfection cotton 308. Before puncture, the medical staff will contact the annular ring 303 with the patient's puncture point, so that the annular sterile cotton 308 contacts the skin, and then press the syringe 2 vertically downward to insert the puncture needle 1 into the patient's abdomen. The two positioning frames 301 on the syringe 2 move along the outer side of the support plate 302, and the elastic strip 306 on the support plate 302 moves downward through the clamping strip 304 on the mounting plate 305. When the puncture needle 1 is inserted into the ascites, one end of the elastic strip 306 rests on the plane of the clamping strip 304 to lock the syringe 2. Finally, the medical staff pulls the pull rod 9 to extract the fluid. The elastic strip 306 can prevent the syringe 2 from moving, thereby locking the puncture needle 1, thereby achieving the effect of facilitating and smoothly extracting the effusion. Explanation of the positioning frame 301 moving downward along the outer side of the support plate 302: The ring 303 is pressed against the skin at the puncture point, and the ring 303 and the support plate 302 are pressed by the reaction force to keep them in an immobile state; Then, the syringe 2 is pressed to insert the puncture needle 1 downward, thereby moving the positioning frame 301 downward, while the support plate 302 remains stationary, that is, the positioning frame 301 slides along the support plate 302 .

[0024] See also Figure 2 、 Figure 3 and Figure 6 , In the figure, the wire insertion mechanism 4 includes a mounting tube 401 installed on the outside of the wire guide tube 11, one end of the mounting tube 401 is sleeved on the outside of the wire guide tube 11, and the inner side of the end of the mounting tube 401 close to the wire guide tube 11 is fixedly connected with a plurality of equidistantly distributed positioning ribs 402, and the end of the mounting tube 401 away from the docking tube 7 is provided with a card slot 403 for limiting the insertion of the positioning rib 402, one end of the card slot 403 is an open structure, and the mounting tube 401 is an arc-shaped structure. The outer side of the mounting tube 401 is fixedly sleeved with an anti-slip sleeve 404, and the end of the mounting tube 401 away from the wire guide tube 11 is fixedly connected with a sealing cylinder 405, and the end of the sealing cylinder 405 away from the mounting tube 401 is fixedly connected with an inserting cylinder 406, and the inserting cylinder 406 is a wide-mouth structure, which is convenient for the guide wire to pass through the sealing cylinder 405 and insert into the wire guide tube 11; When medical staff are extracting the accumulated fluid, the sealing tube 405 provides a seal for the guide wire tube 11. After extracting part of the accumulated fluid, the medical staff can insert the guide wire into the guide wire tube 11 through the insertion tube 406, so that the guide wire can be inserted into the patient's abdomen through the puncture needle 1. The medical staff can pull out the puncture needle 1 and keep the puncture needle 1 away from the guide wire. In this way, the drainage device can be inserted into the patient's abdomen through the guide wire to drain the accumulated fluid, thereby achieving the effect of facilitating guide wire drainage.

[0025] See also Figure 3 、 Figure 7 and Figure 8In the figure, the tube holding mechanism 5 includes two positioning grooves 501 symmetrically opened on both sides of the sealing cover 10, and the inner side of the positioning groove 501 is limitedly plugged with a positioning rod 502. The outer side of the positioning rod 502 is fixedly connected to two symmetrically distributed sleeves 503. The sleeve 503 is a hollow structure. The inner side of the positioning groove 501 is provided with an arc groove 504 for the sleeve 503 to limit the sliding. Both sides of the arc groove 504 are fixedly connected with an arc rod 505. The sleeve 503 is movably sleeved on the outer side of the arc rod 505. The end of the positioning rod 502 away from the sleeve 503 is fixedly connected with a finger insert ring 506 for medical personnel to insert their fingers. The finger insert ring 506 passes through the positioning rod 502 It is movably plugged into the interior of the positioning groove 501, and the two sleeves 503 on the positioning rod 502 are sleeved on the corresponding arc rod 505, so that the finger ring 506 is installed on both sides of the sealing cover 10, while the positioning rod 502 can rotate in the positioning groove 501. The arc groove 504 provides a rotation space for the rotation of the positioning rod 502 to prevent the swing amplitude from being too large. The two finger rings 506 are respectively located on both sides of the two support plates 302. The bottom of the sealing cover 10 is fixedly connected with a cartridge 507. An annular groove for limiting the insertion of the cartridge 507 is opened at the end of the syringe 2 away from the docking tube 7. The sealing cover 10 is installed at the end of the syringe 2 away from the docking tube 7 through the cartridge 507; It is worth noting that: the user can insert the index finger and middle finger into the two finger insert rings 506 respectively and hold them, and can push the syringe 2 to move by pressing the two finger insert rings 506. When the medical staff is puncturing, the finger insert rings 506 can swing with the medical staff's fingers. The finger insert rings 506 rotate synchronously in the positioning groove 501 through the positioning rod 502, and the sleeve 503 moves on the arc rod 505, so that the medical staff can move their wrists at will when holding the finger insert rings 506, which is convenient for inserting the puncture needle 1 at puncture points in different positions, thereby achieving the effect of facilitating the puncture operation of the medical staff.

[0026] Working principle for smooth puncture: first, the medical staff disinfects and marks the puncture point of the patient, brings the annular ring 303 into contact with the puncture point of the patient, and makes the annular sterile cotton 308 contact the skin. Then, the fingers are inserted into the two finger inserting rings 506 to push the syringe 2 toward the puncture point, and the puncture needle 1 is inserted into the patient's abdomen. The two positioning frames 301 on the syringe 2 move along the outside of the support plate 302, and the elastic strip 306 on the support plate 302 moves downward through the clamping strip 304 on the mounting plate 305. When the puncture needle 1 is inserted into the ascites, one end of the elastic strip 306 rests on the plane of the clamping strip 304 to lock the syringe 2. Finally, the medical staff pulls the pull rod 9 to extract the liquid. The elastic strip 306 can prevent the syringe 2 from moving, thereby locking the puncture needle 1 and preventing the puncture needle 1 from moving, thereby achieving the effect of facilitating and smoothly extracting the effusion. After extracting part of the accumulated fluid, the medical staff can insert the guide wire into the guide wire tube 11 through the insertion tube 406, so that the guide wire can be inserted into the patient's abdomen through the puncture needle 1. The medical staff can pull out the puncture needle 1 and keep the puncture needle 1 away from the guide wire. In this way, the drainage device can be inserted into the patient's abdomen through the guide wire to drain the accumulated fluid, thereby achieving the effect of facilitating guide wire drainage.

[0027] Example 2 See also Figure 3 、 Figure 4 and Figure 5 as well as Figure 9 , this embodiment further explains Example 1, the bottom of the ring 303 is fixedly connected with a plurality of equally distributed insertion rods 12, the insertion rods 12 are limitedly inserted into the top of the annular disinfection cotton 308, and the annular disinfection cotton 308 is fixed by the insertion rods 12, which has the effect of preventing it from falling off, and the top of the ring 303 is fixedly connected with two symmetrically distributed blocking blocks 13, the top of the blocking blocks 13 is an arc structure, which is used for medical staff to press the ring 303, and the two blocking blocks 13 are convenient for medical staff to press with their fingers, and the inner side of the ring 303 is fixedly connected with a mounting strip 14, and the surface of the mounting strip 14 is provided with a puncture needle 1 is inserted into the perforation, and both sides of the perforation are fixedly connected with a butt piece 15, which is a downwardly inclined arc structure. The puncture needle 1 can pass through the perforation on the mounting strip 14 and contact the two butt pieces 15, so that when the puncture needle 1 is inserted into the patient's abdomen, the butt piece 15 can press against the outside of the puncture needle 1, which is convenient for supporting and positioning the puncture needle 1. A sealing plug 16 is installed at the bottom of the butt ring 303, and an opening for the sealing plug 16 to be inserted is opened at the top of the butt ring 303. Medical personnel can open the sealing plug 16 and inject disinfectant into the butt ring 303, which can then enter the annular disinfection cotton 308, which is convenient for wiping the puncture point.

[0028] In this application, the cooperation of the annular sterilizing cotton 308 and the sealing plug 16, and the plug connection of the annular sterilizing cotton 308 and the annular ring 303, play a role in disinfection and positioning and anti-slip; The annular sterilizing cotton 308 can also be supplemented by the sealing plug 16; It is worth noting that: after the puncture is completed, the annular sterilization cotton 308 is separated from 303 and remains attached to the puncture site to avoid bleeding.

[0029] In this embodiment: medical personnel can open the sealing plug 16 and inject disinfectant into the cavity of the ring 303, so that the disinfectant enters the annular disinfectant cotton 308, and provide multiple fulcrums for the annular disinfectant cotton 308 through multiple insertion rods 12 to prevent the annular disinfectant cotton 308 from rolling up during disinfection by medical personnel, thereby achieving the effect of facilitating rapid disinfection. During puncture, the puncture needle 1 is inserted between the two plates 15, so that the plates 15 clamp the puncture needle 1, which is convenient for providing auxiliary support for the puncture needle 1 when draining the liquid.

[0030] Example 3 See also Figure 4 and Figure 6 This embodiment further illustrates other embodiments. A long sliding groove is provided on the inner side of the positioning frame 301 for limiting the sliding of the support plate 302, thereby improving the stability of the support plate 302 during movement. The support plate 302 is an arc-shaped structure, and the opposing surfaces of the two support plates 302 are arc-shaped concave surfaces, thereby improving the supporting force of the support plate 302.

[0031] In this embodiment: when medical personnel insert the puncture needle 1 into the patient's abdomen, the support plate 302 moves along the long slide groove on the positioning frame 301 to prevent the support plate 302 from sliding out of the positioning frame 301, and the arc-shaped mechanism supports the plate 302, thereby increasing the supporting force of the two support plates 302 and maintaining the stability of the puncture needle 1 during puncture.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A novel peritoneal puncture and drainage device for ascites caused by liver cirrhosis, comprising a puncture needle (1) and a syringe (2) mounted on the upper end of the puncture needle (1), wherein a connecting tube (6) is mounted on the end of the puncture needle (1) close to the syringe (2), and a butt joint tube (7) is fixedly connected to the end of the syringe (2) close to the puncture needle (1), wherein the butt joint tube (7) is plugged into the inner side of the connecting tube (6), and characterized in that: A piston block (8) is provided on the inner side of the syringe (2) for limiting sliding, a pull rod (9) extending to the outside of the syringe (2) is fixedly installed on the top of the piston block (8), a sealing cover (10) is fixedly installed on the top of the syringe (2), and the outer side of the pull rod (9) is fixedly connected to equidistantly distributed positioning strips (17), and an opening is provided on the top of the sealing cover (10) for limiting sliding of the pull rod (9) and the positioning strip (17), a guide wire tube (11) is installed on the outer side of the docking tube (7) for inserting a drainage guide wire, and a skin-resisting mechanism (3) for assisting in aligning the puncture needle (1) is installed on the outer side of the syringe (2); The wire inserting mechanism (4) is used for sealing and docking the wire guide tube (11). The wire inserting mechanism (4) is installed on the outside of the wire guide tube (11). The outside of the sealing cover (10) is installed with a pipe holding mechanism (5) that is convenient for pressing the pull rod (9).

2. A novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 1, characterized in that: The skin-resisting mechanism (3) comprises two positioning frames (301) symmetrically fixedly mounted on the outside of the syringe (2), a support plate (302) is provided on the inner side of the positioning frame (301) for limiting sliding, a ring (303) is fixedly connected between the two support plates (302), the center point of the ring (303) is located directly below the puncture needle (1), a plurality of vertically equidistantly distributed clamping strips (304) are fixedly connected to the surface of the support plate (302) close to the syringe (2), the top of the clamping strip (304) is a sloped structure, and the inner sides of both ends of the positioning frame (301) are fixedly connected to the mounting plate (303). 5), a plurality of equidistantly distributed elastic strips (306) are fixedly connected to one side of the mounting plate (305) close to the support plate (302), the elastic strips (306) are inclined structures, and the inclination angle of the elastic strips (306) is upward. One end of the support plate (302) away from the annular ring (303) is fixedly connected to a limiting strip (307), the limiting strip (307) is in contact with the top of the positioning frame (301), and an annular disinfection cotton (308) is installed at the bottom of the annular ring (303), and a cavity for installing the annular disinfection cotton (308) is opened at the bottom of the annular ring (303).

3. The novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 1, characterized in that: The wire inserting mechanism (4) comprises a mounting tube (401) mounted on the outside of the wire guide tube (11); a plurality of equally spaced positioning ribs (402) are fixedly connected to the inner side of one end of the mounting tube (401) close to the wire guide tube (11); a slot (403) for limiting the insertion of the positioning ribs (402) is provided at one end of the mounting tube (401) away from the docking tube (7); the mounting tube (401) is an arc-shaped structure; an anti-slip sleeve (404) is fixedly sleeved on the outside of the mounting tube (401); a sealing cylinder (405) is fixedly connected to the end of the mounting tube (401) away from the wire guide tube (11); an inserting tube (406) is fixedly connected to the end of the sealing cylinder (405) away from the mounting tube (401); and the inserting tube (406) is a wide-mouth structure.

4. A novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 2, characterized in that: The tube holding mechanism (5) comprises two positioning grooves (501) symmetrically provided on both sides of the sealing cover (10), a positioning rod (502) is inserted into the inner side of the positioning groove (501), and two symmetrically distributed sleeves (503) are fixedly connected to the outer side of the positioning rod (502), and an arc groove (504) is provided on the inner side of the positioning groove (501) for the sleeve (503) to limit the sliding movement, and both sides of the arc groove (504) are fixedly connected to the arc rod (503). 05), the sleeve (503) is movably sleeved on the outer side of the arc rod (505), and the end of the positioning rod (502) away from the sleeve (503) is fixedly connected with a finger insert ring (506), and the two finger insert rings (506) are respectively located on both sides of the two support plates (302), and the bottom of the sealing cover (10) is fixedly connected with a cartridge (507), and the end of the injection cylinder (2) away from the docking tube (7) is provided with an annular groove for the cartridge (507) to be limitedly inserted.

5. The novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 2, characterized in that: The bottom of the collar (303) is fixedly connected to a plurality of equally spaced insertion rods (12), and the insertion rods (12) are limitedly inserted into the top of the annular sterilizing cotton (308).

6. A novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 5, characterized in that: Two symmetrically distributed resisting blocks (13) are fixedly connected to the top of the resisting ring (303), and the tops of the resisting blocks (13) are cambered structures for medical personnel to press the resisting ring (303).

7. A novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 6, characterized in that: The inner side of the collar (303) is fixedly connected to a mounting bar (14), and a through hole for inserting the puncture needle (1) is provided on the surface of the mounting bar (14). Both sides of the through hole are fixedly connected to a retaining piece (15), and the retaining piece (15) is a downwardly inclined arc structure.

8. The novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 7, characterized in that: A sealing plug (16) is installed at the bottom of the retaining ring (303), and an opening for inserting the sealing plug (16) is provided at the top of the retaining ring (303).

9. The novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 2, characterized in that: The inner side of the positioning frame (301) is provided with a long sliding groove for the support plate (302) to slide in a limited position.

10. The novel peritoneal paracentesis device for treating ascites due to liver cirrhosis according to claim 2, characterized in that: The support plates (302) are of an arc-shaped structure, and the opposing surfaces of the two support plates (302) are arc-shaped concave surfaces.

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