Abdominal puncture auxiliary device for hepatology department

Abstract

The present invention discloses an abdominal puncture assisting device for hepatology, which belongs to the technical field of abdominal puncture assisting. It comprises a covering plate, a puncture inclination positioning unit and a puncture needle locking clamp. The covering plate comprises an outer ring seat and an inner ring seat. The outer ring seat and the inner ring seat are spaced apart and made into a plurality of force-bearing plates. One of the force-bearing plates is provided with a pressure groove, and the pressure groove is provided with an alignment groove on the side close to the inner ring seat; a clamping seat is provided on the side of the adjacent force-bearing plate away from the inner ring seat; a plurality of pressing sheets are fixed to the outside of the outer ring seat, and a pressure-sensitive adhesive is provided on the bottom surface of the pressing sheet; the puncture inclination positioning unit comprises a tube seat, and the tube seat is provided with a movable groove, and one end of the movable groove is hinged with a positioning frame. The abdominal puncture assisting device for hepatology of the present invention can assist the puncture needle in puncturing the puncture site of the abdominal cavity without interfering with the surgical field and causing a blind puncture state, and can stably limit the puncture needle to the puncture position after puncture.

Description

Technical Field

[0001] The present invention specifically relates to a peritoneal puncture assisting device for hepatology department, belonging to the technical field of peritoneal puncture assisting. Background Art

[0002] Abdominal puncture in the liver disease department is used to extract ascites or perform laboratory tests. When the abdominal puncture is performed to extract ascites, in order to avoid damage to the abdominal organs, the puncture needle needs to be inserted into the abdominal cavity at a certain angle and must reach a certain insertion depth; in order to facilitate puncture and fix the position after puncture, a puncture auxiliary device is required. Existing auxiliary devices such as Chinese Patent Publication No.: CN118750120A discloses an abdominal puncture auxiliary device for liver disease department, comprising a U-shaped seat, the top of the U-shaped seat is fixedly connected to an electric telescopic rod 2, the telescopic end of the electric telescopic rod 2 is fixedly connected to a movable seat, and the left side of the movable seat is movably connected to a transmission rod through a bearing; the auxiliary device installation position of this structure is set on the bed, because abdominal puncture is mostly performed under local anesthesia, when the abdominal puncture is performed, if the patient moves his body, the auxiliary device cannot be used. The following movement will inevitably cause the auxiliary device and the puncture site to deviate, and in severe cases may even cause harm to the patient. For example, China Patent Authorization Announcement No.: CN209004147U discloses an abdominal puncture auxiliary device for liver disease department, including a support plate; a strap is fixedly connected to the support plate; a circular opening is opened in the middle of the support plate; an annular groove is coaxially opened on the inner wall of the opening; a horizontal angle adjustment mechanism is provided in the opening, which can accurately control the puncture angle and depth of the puncture needle and is safe to use; but when operating, the structure is only pre-adjusted according to the adjustment structure, and is completely in a blind puncture state after adjustment. Due to the patient's own conditions and the interference of the inclination angle, the needle insertion depth cannot be known in advance. Therefore, the above structure obviously cannot assist the needle insertion well, and after the needle is inserted, the puncture needle is prone to separation from the puncture site. Summary of the Invention

[0003] To solve the above problems, the present invention proposes an abdominal puncture assist device for hepatology department, which can assist the puncture needle in puncturing the abdominal puncture site without interfering with the surgical field and causing a blind puncture state, and can stably limit the puncture needle to the puncture position after puncture.

[0004] The abdominal puncture auxiliary device for hepatology of the present invention comprises:

[0005] The covering disc includes an outer ring seat and an inner ring seat, wherein the outer ring seat and the inner ring seat are spaced apart and formed into a plurality of force-bearing plates, one of the force-bearing plates is provided with a pressing groove, and the pressure groove is provided with an alignment groove on the side close to the inner ring seat; a clamping seat is provided on the side of the adjacent force-bearing plate away from the inner ring seat, and the adjacent force-bearing plates are spaced 90 degrees apart; a plurality of pressing sheets are fixed to the outside of the outer ring seat, and a pressure-sensitive adhesive is provided on the bottom surface of the pressing sheet;

[0006] The puncture inclination angle positioning unit includes a tube seat, the tube seat is provided with a movable groove, one end of the movable groove is hinged to a positioning frame, the positioning frame is hinged to an end close to the movable groove with a connecting arm, and the other end of the connecting arm is hinged to a rack; the tube seat is provided with an inclination locking member locked with the rack at one end away from the positioning frame; the tube seat is engaged with the alignment groove and pressed into the inner side of the pressing groove;

[0007] The puncture needle locking clamp includes a clamp body, and the two clamping ends of the clamp body are respectively fixed with a first semicircular cavity and a second semicircular cavity; when the clamp body is clamped, the first semicircular cavity and the second semicircular cavity form a circular cavity column; the circular cavity column is pressed tightly against the outer wall of the puncture needle; the circular cavity column is embedded in the positioning frame; the pressing end of the clamp body is movably engaged with the clamping seat.

[0008] When in use, the puncture site is disinfected, then the inner ring seat is aligned with the puncture point, and the release paper at the bottom of the pressing sheet is torn off, then the covering disc is pressed to the puncture site and adhered to the abdominal skin with pressure-sensitive adhesive; then, the puncture inclination positioning unit is assembled with the covering disc, and during assembly, the inner side of one end of the tube seat is engaged with the alignment groove, and after the alignment is completed, the tube seat is pressed to the inner side of the pressing groove; at this time, the tube seat and the covering disc are limited; then, the hole towel is laid to make the puncture inclination positioning unit pass through the hole of the hole towel; then, the puncture needle is inserted into the positioning frame, and the inclination locking piece is unlocked from the rack, then, the inclination angle of the positioning frame is adjusted, and after the adjustment is completed, the rack is locked by the inclination locking piece; at this time, the puncture angle adjustment is completed, and the puncture site is corrected by the oblique needle insertion and labyrinthine needle insertion methods. The puncture is performed in the correct position, and the needle is stopped when the puncture process reaches a sense of emptiness; at this time, the puncture needle is clamped by the puncture needle locking clamp, so that the puncture needle and the puncture needle locking clamp are clamped as a whole, and the two ends of the puncture needle locking clamp are limited by the positioning frame. At this time, the axial position of the puncture needle is limited by the puncture needle locking clamp and the positioning frame, and the radial position of the puncture needle is limited by the perforation of the positioning frame; when the puncture needle locking clamp is used, the pressing end of the clamp body is pressed to separate the first semicircular cavity and the second semicircular cavity, and the first semicircular cavity and the second semicircular cavity are moved toward the outer wall of the puncture needle; then, the pressing end of the clamp body is pressed against the holder, and the pressing end of the clamp body is released. At this time, the pressing end of the clamp body is limited by the holder, and at the same time, the first semicircular cavity and the second semicircular cavity automatically hold the puncture needle tightly, and then, the subsequent ascites extraction action can be performed.

[0009] Furthermore, the inclination locking member includes a pressing handle, which is hinged to the end of the tube seat away from the positioning frame, and the bottom surface of the pressing handle is provided with a tooth groove that engages with the rack; a spring sleeve is fixed to the top of the tube seat, and a spring body that is pressed against the pressing handle is fixed to the inner side of the spring sleeve; when the puncture inclination positioning unit is adjusted, force is applied to the pressing handle, and the pressing handle compresses the spring body upward, at this time, the pressing handle and the rack are separated, and the rack is made to slide along the inner wall of the tube seat by adjusting the connecting arm; after the positioning frame completes the angle adjustment, the pressing handle is released, and the pressing handle can automatically lock the rack; at this time, the inclination of the positioning frame is automatically locked.

[0010] Furthermore, the positioning frame includes a swing arm, the top and bottom surfaces of the swing arm are integrally formed with an upper ring seat and a lower ring seat, and the outer side of the bottom of the swing arm is integrally formed with a hinged seat; the circular cavity column is embedded between the upper ring seat and the lower ring seat; the puncture needle moves through the upper ring seat, the lower ring seat and the circular cavity column; the positioning frame is composed of a swing arm, an upper ring seat and a lower ring seat, and an operating gap is set between the upper ring seat and the lower ring seat. At this time, when the puncture needle passes through the upper ring seat and the lower ring seat, the fingers can be held between the upper ring seat and the lower ring seat, and then, puncture can be performed, and through the guidance of the upper ring seat and the lower ring seat, auxiliary oblique needle insertion can be directly performed, and it can be intuitively felt whether the puncture process has reached a sense of failure; in addition, the gap between the upper ring seat and the lower ring seat can be used as a limiting gap for the puncture needle locking clamp.

[0011] Furthermore, a centering disk is movably engaged with the inner side of the upper ring seat or the lower ring seat, and the puncture needle movably passes through the centering disk; the bottom surface of the centering disk is pressed onto the end of the clamp body; when the puncture needle performs puncture, the puncture needle is passed through the upper ring seat, the centering disk and the lower ring seat. At this time, the puncture inclination positioning unit is not adjusted first. After the puncture is completed, the centering disk is slid, and the inclination angle of the puncture inclination positioning unit is adjusted to make the positioning frame and the centering disk aligned and engaged. After the puncture inclination positioning unit is self-locked, the centering disk is limited by the puncture needle locking clip.

[0012] Furthermore, the pressing end of the clamp body is provided with a retaining ring, and the retaining ring is movably engaged with both sides of the clamping seat; the clamping seat is provided with a tooth groove on one side close to each other, and the inner side of the retaining ring is integrally made with a retaining rib that engages with the tooth groove; during operation, after the puncture inclination angle positioning unit completes the inclination adjustment and puncture of the puncture needle, the clamping angle of the puncture needle locking clamp to the puncture needle is adjusted circumferentially, and the clamp body is moved toward the puncture needle, and then the clamp body is sent between the clamping seats, and the pressing end of the clamp body is released; at this time, the retaining ring is movably engaged with both sides of the clamping seat, and at the same time, the retaining rib and the tooth groove of the clamping seat are engaged with each other to limit the position, thereby realizing inclination locking.

[0013] Furthermore, the inner walls of the first semicircular cavity and the second semicircular cavity are spaced apart with a plurality of compression rings, which engage with the outer wall of the puncture needle. The outer wall of the puncture needle can be compressed in multiple passes by the plurality of compression rings, so that the compression rings and the puncture needle can be restricted.

[0014] Furthermore, the tube seat is integrally formed with a pressure strip near one end of the spring sleeve. After the tube seat is pressed into the pressing groove, the pressure strip is fitted with the top surface of the force-bearing plate, and the pressure strip and the pressure plate are fitted together by medical tape; one end of the tube seat is limited by the alignment groove, and the other end of the tube seat is limited by the pressure strip and the medical tape, which can firmly fix the tube seat on the inside of the pressing groove.

[0015] Furthermore, the covering plate is arranged on the bottom surface of the drape, and the puncture angle positioning unit passes through the puncture hole of the drape.

[0016] Furthermore, the inner diameter of the inner ring seat is larger than the inner diameter of the lower ring seat, which can prevent the inner ring seat from blocking the puncture site.

[0017] Furthermore, an operating rod is provided near the hinged end of the connecting arm, and the operating rod can assist the connecting arm in swinging, thereby enabling the rack to slide linearly along the inside of the tube seat.

[0018] Compared with the prior art, the abdominal puncture auxiliary device for hepatology department of the present invention has a puncture inclination positioning unit that can adjust the puncture inclination and automatically lock the inclination angle, thereby assisting the puncture needle to puncture the puncture site of the abdominal cavity. When the puncture needle is puncturing, it can be close to the abdominal position, the needle insertion is more stable, and it will not interfere with the surgical field, resulting in a blind puncture state. It can be convenient to judge whether the puncture is in place. After the puncture is in place, the puncture needle can be stably restricted to the puncture position; finally, the liquid extraction operation can be performed, and all the work can be completed directly by one person. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the covering plate of the present invention.

[0020] Figure 2 Schematic diagram of the overall structure of the puncture assisting device of the present invention.

[0021] Figure 3 This is a schematic diagram of the installation structure of the puncture angle positioning unit and the puncture needle locking clamp of the present invention.

[0022] Figure 4 It is a schematic diagram of the overall structure of the puncture needle locking clamp of the present invention.

[0023] Figure 5 It is a schematic diagram of the overall structure of the puncture inclination positioning unit of the present invention.

[0024] Figure 6 It is a schematic diagram of the overall structure of the tilt locking member of the present invention.

[0025] Figure 7 It is a schematic diagram of the matching structure of the puncture angle positioning unit and the core plate of the present invention.

[0026] Figure 8 This is a schematic diagram of the installation structure of the first semicircular cavity and the press-fit ring of the present invention.

[0027] Figure markings: 1. Outer ring seat, 2. Inner ring seat, 3. Force plate, 4. Pressing groove, 5. Alignment groove, 6. Clamping seat, 7. Pressing sheet, 8. Pressure-sensitive adhesive, 9. Tube seat, 10. Movable groove, 11. Positioning frame, 12. Connecting arm, 13. Rack, 14. Clamp body, 15. First semicircular cavity, 16. Second semicircular cavity, 17. Pressing handle, 18. Tooth groove, 19. Spring sleeve, 20. Spring body, 21. Swing arm, 22. Upper ring seat, 23. Lower ring seat, 24. Articulated seat, 25. Centering disk, 26. Retaining ring, 27. Reinforcement bar, 28. Pressing ring, 29. Pressing strip, 30. Operating lever. DETAILED DESCRIPTION

[0028] Example:

[0029] like Figures 1 to 8 The abdominal puncture assist device shown for hepatology department includes:

[0030] The covering disc includes an outer ring seat 1 and an inner ring seat 2. A plurality of force-bearing plates 3 are formed integrally between the outer ring seat 1 and the inner ring seat 2. A pressing groove 4 is provided on one of the force-bearing plates 3. A positioning groove 5 is provided on the side of the pressure groove 4 close to the inner ring seat 2; a clamping seat 6 is provided on the side of the adjacent force-bearing plate 3 away from the inner ring seat 2, and adjacent force-bearing plates 3 are spaced 90 degrees apart; a plurality of pressing sheets 7 are fixed to the outside of the outer ring seat 1, and a pressure-sensitive adhesive 8 is provided on the bottom surface of the pressing sheet 7;

[0031] The puncture inclination positioning unit includes a tube seat 9, which is provided with a movable groove 10. One end of the movable groove 10 is hinged to a positioning frame 11, and the positioning frame 11 is hinged to a connecting arm 12 at one end close to the movable groove 10, and the other end of the connecting arm 12 is hinged to a rack 13; the tube seat 9 is provided with an inclination locking member locked with the rack 13 at one end away from the positioning frame 11; the tube seat 9 is engaged with the alignment groove 5 and pressed into the inner side of the pressing groove 4;

[0032] The puncture needle locking clamp includes a clamp body 14, and the two clamping ends of the clamp body 14 are respectively fixed with a first semicircular cavity 15 and a second semicircular cavity 16; when the clamp body 14 is clamped, the first semicircular cavity 15 and the second semicircular cavity 16 form a circular cavity column; the circular cavity column is pressed tightly against the outer wall of the puncture needle; the circular cavity column is engaged with the positioning frame 11; the pressing end of the clamp body 14 is movably engaged with the clamping seat 6.

[0033] When in use, the puncture site is disinfected, then the inner ring seat 2 is aligned with the puncture point, and the release paper at the bottom of the pressing sheet 7 is torn off, then the covering disc is pressed to the puncture site and adhered to the abdominal skin through the pressure-sensitive adhesive 8; then, the puncture inclination positioning unit is assembled with the covering disc, and during assembly, the inner side of one end of the tube seat 9 is engaged with the alignment groove 5. After the alignment is completed, the tube seat 9 is pressed to the inner side of the pressing groove 4; at this time, the limit of the tube seat 9 and the covering disc is completed; then, the hole towel is laid to make the puncture inclination positioning unit pass through the hole of the hole towel; then, the puncture needle is inserted into the positioning frame 11, and the inclination locking piece unlocks the rack 13, then, adjusts the inclination angle of the positioning frame 11, and after the adjustment is completed, the rack 13 is locked by the inclination locking piece; at this time, the puncture angle adjustment is completed, and the puncture site is punctured by the oblique needle insertion and the labyrinth needle insertion method. When the puncture process reaches the feeling of falling, the needle is stopped; at this time, the puncture needle is clamped by the puncture needle locking clip, so that the puncture needle and the puncture needle locking clip are clamped as one, and the two ends of the puncture needle locking clip are limited by the positioning frame 11. At this time, the axial position of the puncture needle is limited by the puncture needle locking clip and the positioning frame 11, and the radial position of the puncture needle is limited by the perforation of the positioning frame 11; when the puncture needle locking clip is used, the pressing end of the clamp body 14 is pressed to separate the first semicircular cavity 15 and the second semicircular cavity 16, and the first semicircular cavity 15 and the second semicircular cavity 16 are close to the outer wall of the puncture needle; then, the pressing end of the clamp body 14 is pressed against the holder 6, and the pressing end of the clamp body 14 is released. At this time, the pressing end of the clamp body 14 is limited by the holder 6, and at the same time, the first semicircular cavity 15 and the second semicircular cavity 16 automatically hold the puncture needle tightly, and then, the subsequent ascites extraction action can be performed.

[0034] The inclination locking member includes a pressing handle 17, which is hinged to the end of the tube seat 9 away from the positioning frame 11, and the bottom surface of the pressing handle 17 is provided with a tooth groove 18 that engages with the rack 13; a spring sleeve 19 is fixed to the top of the tube seat 9, and a spring body 20 is fixed to the inner side of the spring sleeve 19, which is pressed against the pressing handle 17; when the puncture inclination positioning unit is adjusted, force is applied to the pressing handle 17, and the pressing handle 17 compresses the spring body 20 to push it up. At this time, the pressing handle 17 and the rack 13 are separated, and the rack 13 is slid along the inner wall of the tube seat 9 by adjusting the connecting arm 12; after the positioning frame 11 completes the angle adjustment, the pressing handle 17 is released, and the pressing handle 17 can automatically lock the rack 13; at this time, the inclination of the positioning frame 11 is automatically locked.

[0035] The positioning frame 11 includes a swing arm 21, the top and bottom surfaces of the swing arm 21 are integrally formed with an upper ring seat 22 and a lower ring seat 23, and the outer side of the bottom of the swing arm 21 is integrally formed with a hinge seat 24; the circular cavity column is embedded between the upper ring seat 22 and the lower ring seat 23; the puncture needle moves through the upper ring seat 22, the lower ring seat 23 and the circular cavity column; the positioning frame 11 is composed of a swing arm 21, an upper ring seat 22 and the lower ring seat 23, and an operating gap is provided between the upper ring seat 22 and the lower ring seat 23. At this time, when the puncture needle passes through the upper ring seat 22 and the lower ring seat 23, the fingers can be held between the upper ring seat 22 and the lower ring seat 23, and then, puncture can be performed, and through the guidance of the upper ring seat 22 and the lower ring seat 23, auxiliary oblique needle insertion can be directly performed, and the puncture process can be intuitively felt whether the sense of failure is achieved; in addition, the gap between the upper ring seat 22 and the lower ring seat 23 can serve as a limiting gap for the puncture needle locking clip.

[0036] A centering disk 25 is movably engaged with the inner side of the upper ring seat 22 or the lower ring seat 23, and the puncture needle movably passes through the centering disk 25; the bottom surface of the centering disk 25 is pressed onto the end of the clamp body 14; when the puncture needle performs puncture, the puncture needle is passed through the upper ring seat 22, the centering disk 25 and the lower ring seat 23. At this time, the puncture inclination positioning unit is not adjusted first. After the puncture is completed, the centering disk 25 is slid, and the inclination angle of the puncture inclination positioning unit is adjusted to make the positioning frame 11 aligned with the centering disk 25. After the puncture inclination positioning unit is self-locked, the centering disk 25 is limited by the puncture needle locking clip.

[0037] The pressing end of the clamp body 14 is provided with a retaining ring 26, and the retaining ring 26 is movably engaged with both sides of the clamping seat 6; the clamping seat 6 is provided with a tooth groove 18 on one side close to each other, and the inner side of the retaining ring 26 is integrally made with a retaining rib 27 that engages with the tooth groove 18; during operation, after the puncture inclination angle positioning unit completes the inclination adjustment and puncture of the puncture needle, the clamping angle of the puncture needle locking clamp to the puncture needle is adjusted circumferentially, and the clamp body 14 is moved toward the puncture needle, then, the clamp body 14 is sent between the clamping seats 6, and the pressing end of the clamp body 14 is released; at this time, the retaining ring 26 is movably engaged with both sides of the clamping seat 6, and at the same time, the retaining rib 27 and the tooth groove 18 of the clamping seat 6 are engaged with each other to limit the position, thereby realizing inclination locking.

[0038] The inner walls of the first semicircular cavity 15 and the second semicircular cavity 16 are spaced apart with a plurality of compression rings 28 , which engage with the outer wall of the puncture needle. The plurality of compression rings 28 can perform multiple compressions on the outer wall of the puncture needle, thereby limiting the compression rings 28 and the puncture needle.

[0039] The tube seat 9 is integrally formed with a pressure strip 29 at one end close to the spring sleeve 19. After the tube seat 9 is pressed into the pressing groove 4, the pressure strip 29 is in contact with the top surface of the force-bearing plate 3, and the pressure strip 29 and the pressure plate are in contact with each other through medical tape; one end of the tube seat 9 is limited by the alignment groove 5, and the other end of the tube seat 9 is limited by the pressure strip 29 and the medical tape, so that the tube seat 9 can be firmly fixed on the inner side of the pressing groove 4.

[0040] The covering plate is arranged on the bottom surface of the drape, and the puncture angle positioning unit passes through the puncture hole of the drape.

[0041] The inner diameter of the inner ring seat 2 is larger than the inner diameter of the lower ring seat 23 , which can prevent the inner ring seat 2 from blocking the puncture site.

[0042] The connecting arm 12 is provided with an operating rod 30 near the hinged end, and the operating rod 30 can assist the connecting arm 12 to swing, so that the rack 13 can slide linearly along the inside of the tube seat 9.

[0043] The above embodiments are only preferred implementations of the present invention. Therefore, any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A paracentesis assisting device for hepatology, characterized by: include: The covering disc includes an outer ring seat and an inner ring seat, wherein a plurality of force-bearing plates are formed integrally between the outer ring seat and the inner ring seat, one of the force-bearing plates is provided with a pressing groove, and a positioning groove is provided on the side of the pressure groove close to the inner ring seat; a clamping seat is provided on the side of the adjacent force-bearing plate away from the inner ring seat; a plurality of pressing sheets are fixed to the outside of the outer ring seat, and a pressure-sensitive adhesive is provided on the bottom surface of the pressing sheet; The puncture inclination angle positioning unit includes a tube seat, the tube seat is provided with a movable groove, one end of the movable groove is hinged to a positioning frame, the positioning frame is hinged to an end close to the movable groove with a connecting arm, and the other end of the connecting arm is hinged to a rack; the tube seat is provided with an inclination locking member locked with the rack at one end away from the positioning frame; the tube seat is engaged with the alignment groove and pressed into the inner side of the pressing groove; The puncture needle locking clamp comprises a clamp body, and the two clamping ends of the clamp body are respectively fixed with a first semicircular cavity and a second semicircular cavity; when the clamp body is clamped, the first semicircular cavity and the second semicircular cavity form a circular cavity column; the circular cavity column is pressed tightly against the outer wall of the puncture needle; the circular cavity column is engaged with the positioning frame; the pressing end of the clamp body is movably engaged with the clamping seat; the inclination locking part comprises a pressing handle, the pressing handle is hinged to the end of the tube seat away from the positioning frame, and the bottom surface of the pressing handle is provided with a tooth groove that engages with the rack; a spring sleeve is fixed to the top of the tube seat, and a spring body that is pressed tightly against the pressing handle is fixed on the inner side of the spring sleeve.

2. The abdominal puncture assisting device for hepatology according to claim 1, characterized in that: The positioning frame includes a swing arm, the top and bottom surfaces of the swing arm are integrally formed with an upper ring seat and a lower ring seat, and the outer side of the bottom of the swing arm is integrally formed with a hinge seat; the circular cavity column is embedded between the upper ring seat and the lower ring seat; the puncture needle moves through the upper ring seat, the lower ring seat and the circular cavity column.

3. The abdominal puncture assisting device for hepatology according to claim 2, characterized in that: A centering disc is movably embedded in the inner side of the upper ring seat or the lower ring seat, and the puncture needle movably passes through the centering disc; the bottom surface of the centering disc is pressed onto the end of the clamp body.

4. The abdominal puncture assisting device for hepatology according to claim 1, characterized in that: The pressing end of the clamp body is provided with a retaining ring, which is movably fitted with both sides of the clamping seat; the clamping seats are provided with tooth grooves on one side close to each other, and the inner side of the retaining ring is integrally made with a retaining rib that engages with the tooth grooves.

5. The abdominal puncture assisting device for hepatology according to claim 1, characterized in that: A plurality of compression rings are arranged at intervals on the inner walls of the first semicircular cavity and the second semicircular cavity, and the compression rings are engaged with the outer wall of the puncture needle.

6. The abdominal puncture assisting device for hepatology according to claim 1, characterized in that: The tube seat is integrally formed with a pressure strip at one end close to the spring sleeve. After the tube seat is pressed into the pressing groove, the pressure strip is fitted to the top surface of the force-bearing plate. The pressure strip and the pressure plate are fitted together by medical tape.

7. The abdominal puncture assisting device for hepatology according to claim 1, characterized in that: The covering plate is arranged on the bottom surface of the drape, and the puncture angle positioning unit passes through the puncture hole of the drape.

8. The abdominal puncture assisting device for hepatology according to claim 1, characterized in that: The inner diameter of the inner ring seat is greater than the inner diameter of the lower ring seat.

9. The abdominal puncture assisting device for hepatology according to claim 1, characterized in that: The connecting arm is provided with an operating rod near the hinged end.

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