Universal forceps for surgery with anti-breakage and self-locking function

Abstract

The present invention discloses a surgical universal forceps with anti-breaking self-locking function, which relates to the technical field of medical devices, including a handle body, a hook, a first nickel-titanium wire rope, a front handle and a forceps head, wherein a first positioning screw is fixedly installed on the inner wall side of the handle body, a front handle is movably installed on the outer wall side of the handle body, a forceps head is movably installed on the outer wall side of the handle body, a hook is fixedly installed on the inner wall side of the handle body, a first tension spring is fixedly installed on the outer wall side of the first positioning screw, and the first tension spring is connected to the hook through a head hook. The present invention realizes the opening and closing function of the surgical forceps by installing a front handle, a first nickel-titanium wire rope and a reset spring, and accurately clamps and cleans lymph nodes in different positions through a universal design, making up for the limitations of traditional surgical treatment of thoracic surgical diseases and broadening the scope of surgical indications.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a universal forceps for surgery with anti-breakage and self-locking functions. Background Art

[0002] The surgical universal forceps is an important tool widely used in surgical operations, designed to provide doctors with greater flexibility and precision in surgical operations. Its design goal is to help surgeons easily adjust and fix surgical instruments or tissue clamps in limited operating spaces, especially in complex or narrow anatomical areas. Traditional fixed forceps are easily limited by space and angle restrictions during operation, while universal forceps can achieve free adjustment in multiple angles and directions through its special structure.

[0003] With the increasing demand for minimally invasive and complex surgeries, the innovative design of surgical universal forceps is increasingly focused on providing more precise control and faster adjustment while ensuring operational stability. This tool not only increases the doctor's operational freedom, but also significantly improves the efficiency and safety of the surgery.

[0004] Patent document CN115644997B discloses a universally adjustable surgical instrument. The above patent realizes the accuracy of universal adjustment of surgical forceps during surgery, improves surgical efficiency, and ensures the success rate of surgery. However, the above patent cannot realize the opening and closing function of surgical forceps.

[0005] Patent document CN116492021B discloses a surgical instrument head. The above patent realizes the universal turning of the clamp assembly, which is not only simple to operate but also can realize the precise control of the surgical instrument head. However, the above patent cannot realize the force unloading and anti-breakage function of the surgical forceps.

[0006] Patent document CN109172058B discloses a acetabular cup fixing screw clamp. The above patent realizes that the blade of the universal screwdriver and the screw are more easily engaged through a guiding structure, thereby facilitating the surgical operation, but the above patent cannot realize the rotation and swinging functions of the surgical clamp.

[0007] Patent document CN102008341B discloses a universal medical forceps. The above patent achieves reasonable structural design, good effect, convenient and safe surgical use, but the above patent cannot achieve the self-locking function of the surgical forceps.

[0008] In summary, the above patents cannot realize the opening and closing function of the surgical forceps, the force unloading and anti-breaking function of the surgical forceps, the rotation and swinging function of the surgical forceps, and the self-locking function of the surgical forceps, resulting in complex surgical operations, multiple wounds for patients, slow recovery, easy postoperative infection, and poor convenience of use;

[0009] To this end, the present application proposes a surgical universal forceps with anti-breakage and self-locking functions that can realize the opening and closing functions of the surgical forceps, the force unloading and anti-breakage functions of the surgical forceps, the rotation and swing functions of the surgical forceps, and the self-locking functions of the surgical forceps. Summary of the invention

[0010] The object of the present invention is to provide a universal surgical forceps with anti-breakage and self-locking function to solve the technical problems proposed in the above-mentioned background technology that the opening and closing function of the surgical forceps, the force unloading and anti-breakage function of the surgical forceps, the rotation and swinging function of the surgical forceps and the self-locking function of the surgical forceps cannot be realized, resulting in complicated surgical operations, multiple wounds for patients, slow recovery speed, easy postoperative infection and poor convenience of use.

[0011] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a surgical universal pliers with anti-breakage and self-locking functions, comprising a handle body, a hook, a first nickel-titanium wire rope, a front handle and a pliers head, wherein a first positioning screw is fixedly installed on the inner wall side of the handle body, a front handle is movably installed on the outer wall side of the handle body, a pliers head is movably installed on the outer wall side of the handle body, a hook is fixedly installed on the inner wall side of the handle body, a first tension spring is fixedly installed on the outer wall side of the first positioning screw, the first tension spring is connected to the hook through a head hook, the hook is fixedly installed on the inner wall side of the handle body, a positioning column is fixedly installed on one end of the hook, an unlocking button is fixedly installed in the middle of the hook, a second positioning screw is fixedly installed on the inner wall side of the handle body, and the outer wall of the second positioning screw is set There is a second tension spring, which is connected to the hanging hole opened on the side of the front handle through a head hook, a first sleeve is fixedly installed on the side of the middle outer wall of the front handle, and a rotating shaft is movably installed in the middle of the first sleeve, a positioning sleeve is fixedly installed on the upper end of the front handle, and the positioning sleeve is riveted with the first nickel-titanium wire rope, a transmission wheel is fixedly installed on the side of the inner wall of the handle body, the first nickel-titanium wire rope is connected to the pliers head around the transmission wheel, the transmission wheel is movably installed on the force unloading device, a connecting sleeve is fixedly installed on the front end of the handle body, and the connecting sleeve is connected to the second rotating device through a thread, the force unloading device and the first rotating device are movably installed in the handle body, a lock buckle is fixedly installed on the side of the outer wall of the front handle, and the lock buckle is fixed by a screw fixedly installed on the bottom of the inner wall of the front handle.

[0012] Preferably, the force unloading device is installed in the handle body, a force unloading shell is fixedly installed on the side of the handle body, a positioning pin is inserted in the force unloading shell, a movable shaft is movably installed on the side of the outer wall of the force unloading shell, a force unloading spring is fixedly sleeved in the middle of the movable shaft, an adjusting nut is fixedly installed on the side of the outer wall of the tail of the movable shaft, which is used to adjust the maximum force of the universal pliers for surgery, a transmission wheel is fixedly installed on the front end of the movable shaft, and a rotating shaft is fixedly installed on the side of the outer wall of the transmission wheel.

[0013] Preferably, the handle body is installed together with the first connecting shaft in the second rotating device through a connecting sleeve at the front end, a rubber pad and a rotating component are fixedly installed on the inner wall surface of the first connecting shaft, a copper sleeve and a threaded sleeve are fixedly installed on the tail end of the first connecting shaft, a limiting pin is fixedly inserted just below the end surface of the rotating component, a spring and a positioning steel ball are fixedly installed just above the rotating component, a rod sleeve is fixedly installed on the threaded part of the rotating component, the rod sleeve is connected to the rotating component through threads, a rotating handle is sleeved on the surface of the rod sleeve, a flushing port is fixedly installed at the front end hole of the rotating handle, the flushing port connects the rod sleeve and the rotating handle together through threads, and a fixing screw is movably installed on the inner wall of the connecting sleeve.

[0014] Preferably, a rod body is fixedly installed on the outer wall side of the rod sleeve in the second rotating device through an outer tube, a second connecting shaft is fixedly installed inside the outer tube, a rope rod is fixedly sleeved inside the second connecting shaft, a connecting piece is fixedly installed at the front end of the outer tube, the connecting piece is connected to the swing structure, and a first rotating device is fixedly installed on the rear end surface of the second connecting shaft, and the first rotating device is fixed in the second connecting shaft through a second shaft sleeve.

[0015] Preferably, the first rotating device is installed in the handle body together with the rod body, the transmission shaft is fixedly installed on the surface of the second connecting shaft, a rotating sleeve is fixedly sleeved on the surface of the transmission shaft, and transmission pins are installed in the two small holes in the middle of the rotating sleeve, and the transmission pins cooperate with the spiral groove opened in the middle of the transmission shaft.

[0016] Preferably, the connecting member is fixedly connected to the swing arm body through a third connecting pin, the other end of the swing arm body is fixedly installed together with the connecting plate and movably connected with the first connecting pin, and the other end of the connecting plate is installed together with the second connecting shaft in the rod body and movably connected with the second connecting pin.

[0017] Preferably, the front end of the pliers head is fixedly provided with an upper head and a lower head, and transmission plates are respectively provided on the inner wall sides of the upper head and the lower head, and the transmission plates are connected with positioning pins, and the other end of the transmission plates is fixedly connected with a transmission pin shaft, and the transmission pin shaft is slidably installed in a sliding groove opened on the outer wall of the swing arm body.

[0018] Preferably, a second nickel-titanium wire rope is installed in the middle of the transmission pin shaft, a return spring is sleeved on the surface of the second nickel-titanium wire rope, and the return spring is installed in the main body slot of the swing arm.

[0019] Preferably, the upper head and the lower head are combined together and installed on the swing arm body, and the upper head and the lower head are fixedly connected using a fourth connecting pin.

[0020] Preferably, a rotating wheel is fixedly installed on the surface of the rotating sleeve, a sliding groove is fixedly installed on the tail end of the transmission shaft, a center column is installed on the side of the handle body and is fastened to the side of the handle body by interference fit, a reset spring is installed on the surface of the center column, a hook is installed on the upper end of the reset spring, an unlocking button is installed on the hook, a bayonet is installed in the round hole on the side of the unlocking button, and the bayonet is fixed to the unlocking button by welding.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention realizes the opening and closing function of the surgical forceps by installing a front handle, a first nickel-titanium wire rope and a reset spring. The universal design is used to accurately clamp and clean lymph nodes in different positions, making up for the limitations of traditional surgical treatment of thoracic surgical diseases and broadening the scope of surgical indications;

[0023] 2. The present invention realizes the force unloading and anti-breaking function of the surgical forceps by installing a force unloading shell, a force unloading spring and a transmission wheel, ensuring small surgical trauma, low infection rate and fast physical recovery, realizing medical technology innovation and development, and providing valuable experience for subsequent medical research and development;

[0024] 3. The present invention realizes the rotation and swinging functions of the surgical forceps by installing a rotating component, a rotating handle, a rotating wheel and a transmission pin, while maintaining the advantages of minimally invasive surgery, further reducing the number and size of surgical incisions, resulting in less trauma to the patient, reducing postoperative complications, and promoting the overall recovery process of the patient;

[0025] 4. The present invention realizes the self-locking function of the surgical forceps by installing a lock buckle, a reset spring and a hook, solves the problem that the surgical forceps cannot be self-locked, resulting in complicated operating procedures and inability to free both hands, and improves the convenience of using the surgical forceps. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the front structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the movable shaft part of the present invention;

[0029] Figure 4 It is a schematic structural diagram of the first connecting shaft portion of the present invention;

[0030] Figure 5 It is a schematic structural diagram of the second connecting shaft portion of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the transmission shaft part of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the main part of the swing arm of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the upper head and the lower head of the present invention;

[0034] Fig. 9 It is a partial structural schematic diagram of the opening and closing process of the clamp head of the present invention;

[0035] Fig.10 It is a partial structural schematic diagram of the force unloading process of the present invention;

[0036] Fig.11 It is a partial structural schematic diagram of the rotation process of the present invention;

[0037] Fig.12 It is a partial structural schematic diagram of the swing operation process of the present invention;

[0038] Fig.13 It is a schematic structural diagram of the locking part of the handle body of the present invention.

[0039] In the figure: 1. handle body; 2. first rotating device; 3. second rotating device; 4. rod body; 5. swing structure; 6. pliers head; 7. front handle; 8. lock; 9. first positioning screw; 10. first tension spring; 11. positioning column; 12. hook; 13. second positioning screw; 14. second tension spring; 15. hanging hole; 16. first shaft sleeve; 17. rotating shaft; 18. positioning sleeve; 19. first nickel-titanium wire rope; 20. transmission wheel; 21. unloading device; 22. connecting sleeve; 23. screw; 24. unlocking button; 25. adjusting nut; 26. unloading spring; 27. moving shaft; 28. rotating shaft; 29. ​​rod sleeve; 30. flushing port; 31. rotating handle; 32. first connecting shaft; 33. connecting piece; 34. outer tube; 35. second connecting shaft; 36. rope rod; 37. transmission wheel Moving shaft; 38, rotating wheel; 39, rotating sleeve; 40, sliding groove; 41, transmission pin; 42, swing arm body; 43, first connecting pin; 44, connecting plate; 45, second connecting pin; 46, third connecting pin; 47, upper head; 48, positioning pin; 49, transmission plate; 50, return spring; 51, transmission pin shaft; 52, fourth connecting pin; 53, lower head; 54, second nickel-titanium wire rope; 55, positioning pin; 56, force unloading shell; 57, rubber pad; 58, copper sleeve; 59, threaded sleeve; 60, rotating part; 61, limit pin; 62, spring; 63, positioning steel ball; 64, second sleeve; 65, fixing screw; 66, bayonet; 67, return spring 68, center column. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] See also Figure 1 , Figure 2 , Figure 3 and Fig. 9, an embodiment provided by the present invention: a surgical universal forceps with anti-breakage self-locking, comprising a handle body 1, a hook 12, a first nickel-titanium wire rope 19, a front handle 7 and a pliers head 6, a first positioning screw 9 is fixedly installed on the inner wall side of the handle body 1, a front handle 7 is movably installed on the outer wall side of the handle body 1, a pliers head 6 is movably installed on the outer wall side of the handle body 1, a hook 12 is fixedly installed on the inner wall side of the handle body 1, a first tension spring 10 is fixedly installed on the outer wall side of the first positioning screw 9, the first tension spring 10 is connected to the hook 12 through a head hook, the hook 12 is fixedly installed on the inner wall side of the handle body 1, a positioning column 11 is fixedly installed at one end of the hook 12, an unlocking button 24 is fixedly installed in the middle of the hook 12, a second positioning screw 13 is fixedly installed on the inner wall side of the handle body 1, and a second tension spring 14 is sleeved on the outer wall of the second positioning screw 13, The second tension spring 14 is connected to the hanging hole 15 opened on the side of the front handle 7 through the head hook, a first sleeve 16 is fixedly installed on the side of the middle outer wall of the front handle 7, a rotating shaft 17 is movably installed in the middle of the first sleeve 16, a positioning sleeve 18 is fixedly installed on the upper end of the front handle 7, the positioning sleeve 18 is riveted with the first nickel-titanium wire rope 19, a transmission wheel 20 is fixedly installed on the side of the inner wall of the handle body 1, the first nickel-titanium wire rope 19 is connected to the pliers head 6 around the transmission wheel 20, the transmission wheel 20 is movably installed on the unloading device 21, a connecting sleeve 22 is fixedly installed at the front end of the handle body 1, and the connecting sleeve 22 is connected to the second rotating device 3 through a thread, the unloading device 21 and the first rotating device 2 are movably installed in the handle body 1, a lock buckle 8 is fixedly installed on the side of the outer wall of the front handle 7, and the lock buckle 8 is fixed by a screw 23 fixedly installed at the bottom of the inner wall of the front handle 7;

[0044] The front end of the clamp head 6 is fixedly provided with an upper head 47 and a lower head 53, and the inner wall sides of the upper head 47 and the lower head 53 are respectively provided with a transmission sheet 49, the transmission sheet 49 is connected with a positioning pin 48, and the other end of the transmission sheet 49 is fixedly connected with a transmission pin 51, and the transmission pin 51 is slidably installed in a sliding groove provided on the outer wall of the swing arm body 42;

[0045] A second nickel-titanium wire rope 54 is installed in the middle of the transmission pin shaft 51, and a return spring 50 is sleeved on the surface of the second nickel-titanium wire rope 54, and the return spring 50 is installed in the groove of the swing arm body 42;

[0046] The upper head 47 and the lower head 53 are combined and installed on the swing arm body 42, and the upper head 47 and the lower head 53 are fixedly connected using a fourth connecting pin 52;

[0047] Further, the upper head 47 and the lower head 53 are combined together and connected by a fourth connecting pin 52. The upper head 47 and the lower head 53 are respectively equipped with a transmission sheet 49. The positioning pin 48 passes through the hole of the transmission sheet 49 and is welded to the upper head 47 and the lower head 53. The other end hole of the transmission sheet 49 is equipped with a transmission pin 51. The middle of the transmission pin 51 is connected to the second nickel-titanium wire rope 54. The surface of the second nickel-titanium wire rope 54 is provided with a return spring 50. The second nickel-titanium wire rope 54 is riveted to the rope rod 36. The other end of the rope rod 36 is riveted to the first nickel-titanium wire rope 19. The first nickel-titanium wire rope 19 is connected to the front handle 7 around the transmission wheel 20. The tail end of the first nickel-titanium wire rope 19 is riveted to the positioning sleeve 18. The positioning sleeve 18 is buckled in the groove of the front handle 7.

[0048] When the front handle 7 is closed, the front handle 7 moves around the rotating shaft 17, and the front handle 7 pulls the first nickel-titanium wire rope 19, driving the rope rod 36 and the second nickel-titanium wire rope 54 to move together, and the second nickel-titanium wire rope 54 pulls the transmission pin 51, and the transmission pin 51 pulls the transmission sheet 49 to move, and the transmission sheet 49 pulls the upper head 47 and the lower head 53 to close. When the handle is released, the return spring 50 pushes the transmission pin 51 back to the original position, and the upper head 47 and the lower head 53 are in the open state again, and the second tension spring 14 pulls the front handle 7 back to the original position, realizing the opening and closing function of the universal forceps for surgery.

[0049] See also Figure 4 , Figure 5 and Fig.10 , an embodiment provided by the present invention: a surgical universal forceps with anti-breakage self-locking, the unloading device 21 is installed in the handle body 1, a unloading shell 56 is fixedly installed on the side of the handle body 1, a positioning pin 55 is inserted into the unloading shell 56, a moving shaft 27 is movably installed on the side of the outer wall of the unloading shell 56, a unloading spring 26 is fixedly sleeved in the middle of the moving shaft 27, an adjusting nut 25 is fixedly installed on the side of the outer wall of the tail of the moving shaft 27, which is used to adjust the maximum force of the surgical universal forceps, a transmission wheel 20 is fixedly installed on the front end of the moving shaft 27, and a rotating shaft 28 is fixedly installed on the side of the outer wall of the transmission wheel 20;

[0050] A first positioning screw 9 is fixedly installed on the inner wall side of the handle body 1, a front handle 7 is movably installed on the outer wall side of the handle body 1, a pliers head 6 is movably installed on the outer wall side of the handle body 1, a hook 12 is fixedly installed on the inner wall side of the handle body 1, a first tension spring 10 is fixedly installed on the outer wall side of the first positioning screw 9, the first tension spring 10 is connected to the hook 12 through a head hook, the hook 12 is fixedly installed on the inner wall side of the handle body 1, a positioning column 11 is fixedly installed on one end of the hook 12, an unlocking button 24 is fixedly installed in the middle of the hook 12, a second positioning screw 13 is fixedly installed on the inner wall side of the handle body 1, the outer wall of the second positioning screw 13 is sleeved with a second tension spring 14, the second tension spring 14 is connected to the hanging hole 15 opened on the side of the front handle 7 through the head hook The front handle 7 is connected together, a first sleeve 16 is fixedly installed on the side of the middle outer wall of the front handle 7, a rotating shaft 17 is movably installed in the middle of the first sleeve 16, a positioning sleeve 18 is fixedly installed on the upper end of the front handle 7, and the positioning sleeve 18 is riveted together with the first nickel-titanium wire rope 19, a transmission wheel 20 is fixedly installed on the side of the inner wall of the handle body 1, the first nickel-titanium wire rope 19 is connected to the pliers head 6 around the transmission wheel 20, and the transmission wheel 20 is movably installed on the force unloading device 21, a connecting sleeve 22 is fixedly installed at the front end of the handle body 1, and the connecting sleeve 22 is connected to the second rotating device 3 through a thread, and the force unloading device 21 and the first rotating device 2 are movably installed in the handle body 1, a lock buckle 8 is fixedly installed on the side of the outer wall of the front handle 7, and the lock buckle 8 is fixed by a screw 23 fixedly installed at the bottom of the inner wall of the front handle 7;

[0051] Furthermore, a force unloading spring 26 is installed in the cavity of the force unloading housing 56, and the moving shaft 27 passes through the force unloading spring 26) and the force unloading housing 56, and the moving shaft 27 is locked in the force unloading housing 56 by the adjusting nut 25. The positioning pin 55 passes through the force unloading housing 56 and cooperates with the groove of the moving shaft 27 to prevent the moving shaft 27 from rotating. The transmission wheel 20 is installed in the groove of the moving shaft 27, and the rotating shaft 28 is welded to the moving shaft 27 after the rotating shaft 28 is installed.

[0052] The front handle 7 is closed to drive the first nickel-titanium wire rope 19 to move. The first nickel-titanium wire rope 19 transmits force to the upper head 47 and the lower head 53 around the transmission wheel 20. When the upper head 47 and the lower head 53 are closed, force continues to be applied to the handle until the applied force is greater than the elastic force of the unloading spring 26. The first nickel-titanium wire rope 19 pulls the transmission wheel 20 to compress the unloading spring 26, and the unloading spring 26 contracts to eliminate the force applied to the front handle 7, thereby ensuring that the first nickel-titanium wire rope 19 will not break or rivet off due to excessive force, thereby realizing the force unloading and anti-breakage function of the universal forceps for surgery.

[0053] See also Figure 4 , Figure 7 and Fig.11 , an embodiment of the present invention is: a surgical universal forceps with anti-breakage self-locking, the handle body 1 is installed together with the first connecting shaft 32 in the second rotating device 3 through the front end connecting sleeve 22, the inner wall surface of the first connecting shaft 32 is fixedly installed with a rubber pad 57 and a rotating component 60, the tail end of the first connecting shaft 32 is fixedly installed with a copper sleeve 58 and a threaded sleeve 59, a limited pin 61 is fixedly inserted just below the end surface of the rotating component 60, a spring 62 and a positioning steel ball 63 are fixedly installed just above the rotating component 60, a rod sleeve 29 is fixedly installed on the threaded part of the rotating component 60, the rod sleeve 29 is connected to the rotating component 60 through threads, a rotating handle 31 is sleeved on the surface of the rod sleeve 29, a flushing port 30 is fixedly installed at the front end hole position of the rotating handle 31, and the flushing port 30 connects the rod sleeve 29 and the rotating handle 31 together through threads;

[0054] Further, the connecting sleeve 22 is installed on the handle body 1 and fixed with a fixing screw 65. The first connecting shaft 32 is installed on the threaded part of the connecting sleeve 22. After the spring 62, positioning steel ball 63, limit pin 61 and rubber pad 57 are installed on the side of the rotating component 60, it is installed on the first connecting shaft 32. The copper sleeve 58 is inserted into the thread of the first connecting shaft 32 and the threaded sleeve 59 is installed. The rotating component 60 is fixed on the first connecting shaft 32 and can rotate freely around the first connecting shaft 32. The rod sleeve 29 is installed on the thread of the rotating component 60, and the rod body 4 is inserted into the hole of the rod sleeve 29. The rod body 4 and the rod sleeve 29 are fixed together by laser welding. The rotating handle 31 is installed on the surface of the rod sleeve 29 and the rotating component 60. The boss of the rotating handle 31 cooperates with the groove on the surface of the rotating component 60. The flushing port 30 is installed in the hole of the rotating handle 31 and is threaded into the rod sleeve 29 to fix the rotating handle 31 and the rod sleeve 29 together.

[0055] When the hand rotates the rotating handle 31, the rotating handle 31 drives the rotating component 60 and the rod sleeve 29 to rotate together. Since the rod body 4 and the rod sleeve 29 are welded together, the rod body 4 will rotate together, thereby rotating the head. The surgical universal forceps has a 360° rotation. Compared with traditional surgical universal forceps, the surgical universal forceps have a larger operating range in the same channel.

[0056] See also Figure 4 , Figure 6 , Figure 7 and Fig.12, an embodiment of the present invention is: a universal forceps for surgery with anti-breaking self-locking, the outer wall side of the rod sleeve 29 in the second rotating device 3 is fixedly installed with a rod body 4 through an outer tube 34, the inner part of the outer tube 34 is fixedly installed with a second connecting shaft 35, the inner part of the second connecting shaft 35 is fixedly sleeved with a rope rod 36, the front end of the outer tube 34 is fixedly installed with a connecting piece 33, the connecting piece 33 is connected to the swing structure 5, the tail end surface of the second connecting shaft 35 is fixedly installed with a first rotating device 2, and the first rotating device 2 is fixed in the second connecting shaft 35 through a second sleeve 64;

[0057] The first rotating device 2 is installed in the handle body 1 together with the rod body 4, and the transmission shaft 37 is fixedly installed on the surface of the second connecting shaft 35. A rotating sleeve 39 is fixedly sleeved on the surface of the transmission shaft 37. A transmission pin 41 is installed in two small holes in the middle of the rotating sleeve 39. The transmission pin 41 cooperates with the spiral groove in the middle of the transmission shaft 37.

[0058] The connecting member 33 is fixedly connected to the swing arm body 42 via a third connecting pin 46. The other end of the swing arm body 42 is fixedly mounted with a connecting piece 44 and is movably connected with the first connecting pin 43. The other end of the connecting piece 44 is mounted with the second connecting shaft 35 in the rod body 4 and is movably connected with the second connecting pin 45.

[0059] Further, the rotating sleeve 39 is installed on the surface of the transmission shaft 37, the transmission pin 41 passes through the pin hole of the rotating sleeve 39 and cooperates with the spiral groove of the transmission shaft 37. The rotating wheel 38 is installed on the surface of the rotating sleeve 39, and the rotating wheel 38 and the rotating sleeve 39 are fixed together by interference fit. The rear sliding groove 40 of the transmission shaft 37 cooperates with the boss of the handle body 1 to ensure that the transmission shaft 37 will not rotate left and right. The tail end of the second connecting shaft 35 is installed in the hole of the transmission shaft 37, and the second shaft sleeve 64 is inserted and welded with the second connecting shaft 35 to fix the transmission shaft 37 in the first On the second connecting shaft 35, the second connecting shaft 35 passes through the connecting piece 33 and is installed together with the connecting plate 44, and is connected with the second connecting pin 45. The second connecting pin 45 is welded on one side of the connecting plate 44, and the other end of the connecting plate 44 is installed together with the swing arm body 42. The first connecting pin 43 is welded on one side of the connecting piece 44, and the other end of the swing arm body 42 is assembled with the connecting piece 33, and is connected with the third connecting pin 46. The two ends of the third connecting pin 46 are welded on the hole position of the connecting piece 33, and the connecting piece 33 and the outer tube 34 are welded together.

[0060] By rotating the rotating wheel 38, the rotating sleeve 39 and the transmission pin 41 rotate together, and the transmission pin 41 and the rotating groove in the transmission shaft 37 cooperate with each other, driving the transmission shaft 37 and the second connecting shaft 35 fixed on the transmission shaft 37 to move forward and backward. The second connecting shaft 35 moves forward to push the swing arm body 42 to swing right, and the second connecting shaft 35 moves backward to pull the swing arm body 42 to swing left, thereby realizing the left and right swinging function of the universal forceps for surgery. The universal forceps for surgery can achieve a left and right swing of ≥50°. Compared with traditional surgical forceps, the universal forceps effectively solves the problem that traditional universal forceps for surgery have narrow working channels, large lesion areas, and require multiple holes to complete the operation.

[0061] See also Figure 5 , Figure 6 , Figure 8 and Fig.13 , an embodiment of the present invention provides: a universal pliers for surgery with anti-breakage and self-locking, wherein a first positioning screw 9 is fixedly installed on the inner wall side of the handle body 1, a front handle 7 is movably installed on the outer wall side of the handle body 1, a pliers head 6 is movably installed on the outer wall side of the handle body 1, a hook 12 is fixedly installed on the inner wall side of the handle body 1, a first tension spring 10 is fixedly installed on the outer wall side of the first positioning screw 9, the first tension spring 10 is connected to the hook 12 through a head hook, the hook 12 is fixedly installed on the inner wall side of the handle body 1, a positioning column 11 is fixedly installed at one end of the hook 12, an unlocking button 24 is fixedly installed in the middle of the hook 12, a second positioning screw 13 is fixedly installed on the inner wall side of the handle body 1, the outer wall of the second positioning screw 13 is sleeved with a second tension spring 14, the second tension spring 14 is connected to the front handle 7 through a head hook The hanging holes 15 opened on the side of the handle 7 are connected together, a first sleeve 16 is fixedly installed on the side of the middle outer wall of the front handle 7, a rotating shaft 17 is movably installed in the middle of the first sleeve 16, a positioning sleeve 18 is fixedly installed on the upper end of the front handle 7, and the positioning sleeve 18 is riveted together with the first nickel-titanium wire rope 19, a transmission wheel 20 is fixedly installed on the side of the inner wall of the handle body 1, the first nickel-titanium wire rope 19 is connected to the pliers head 6 around the transmission wheel 20, and the transmission wheel 20 is movably installed on the unloading device 21, a connecting sleeve 22 is fixedly installed at the front end of the handle body 1, and the connecting sleeve 22 is connected to the second rotating device 3 through a thread, and the unloading device 21 and the first rotating device 2 are movably installed in the handle body 1, a lock buckle 8 is fixedly installed on the side of the outer wall of the front handle 7, and the lock buckle 8 is fixed by a screw 23 fixedly installed at the bottom of the inner wall of the front handle 7;

[0062] The handle body 1 is installed with the first connecting shaft 32 in the second rotating device 3 through the connecting sleeve 22 at the front end, the inner wall surface of the first connecting shaft 32 is fixedly installed with a rubber pad 57 and a rotating component 60, the tail end of the first connecting shaft 32 is fixedly installed with a copper sleeve 58 and a threaded sleeve 59, a limit pin 61 is fixedly inserted just below the end surface of the rotating component 60, a spring 62 and a positioning steel ball 63 are fixedly installed just above the rotating component 60, a rod sleeve 29 is fixedly installed on the threaded part of the rotating component 60, the rod sleeve 29 is connected to the rotating component 60 through threads, a rotating handle 31 is sleeved on the surface of the rod sleeve 29, a flushing port 30 is fixedly installed at the front end hole position of the rotating handle 31, and the flushing port 30 connects the rod sleeve 29 and the rotating handle 31 together through threads;

[0063] A center column 68 is mounted on the side of the handle body 1 and is fastened to the side of the handle body 1 by interference fit. A return spring 67 is mounted on the surface of the center column 68. A hook 12 is mounted on the upper end of the return spring 67. An unlocking button 24 is mounted on the hook 12. A bayonet 66 is mounted in a circular hole on the side of the unlocking button 24. The bayonet 66 is fixed to the unlocking button 24 by welding.

[0064] Furthermore, a lock buckle 8 is installed at the groove position of the front handle 7 and is connected with a screw 23. A center column 68 is installed on the side of the handle body 1 and is fastened to the side of the handle body 1 by interference fit. A return spring 67 is installed on the surface of the center column 68. A hook 12 is installed on the upper end of the return spring 67. An unlocking button 24 is installed on the hook 12. A bayonet 66 is installed in the round hole on the side of the unlocking button 24. The bayonet 66 is fixed to the unlocking button 24 by welding. A first tension spring 10 is hung at the round hole position behind the hook 12. The other end of the first tension spring 10 is hung on the first positioning screw 9. The positioning column 11 on the side of the handle body 1 ensures that the hook 12 is consistently in the same position when it is not locked.

[0065] When the front handle 7 is closed, the lock 8 is driven to engage with the hook 12, thereby realizing the self-locking function. There are 3 teeth on the hook 12 for adjusting the size of the engagement force. When unlocking is required, the unlock button 24 is pressed. The unlock button 24 pushes the hook 12 to move downward. The tooth shape on the hook 12 is staggered with the tooth shape of the lock 8. The handle automatically pops open under the tension of the second tension spring 14, and the unlock button 24 pops up and returns to its original state, thereby realizing the unlocking function. When the locking function of the universal forceps for surgery is not required, the unlock button 24 can be pressed with a screwdriver and rotated 180°. The latch 66 on the unlock button 24 is stuck on the side of the handle body 1, so that the unlock button 24 cannot rebound. Because the unlock button 24 cannot rebound, the hook 12 is staggered with the lock 8. When the front handle 7 is closed, the lock 8 cannot be engaged with the hook 12, thereby realizing the failure of the locking function;

[0066] A cleaning port is provided on the surface of the second rotating device 3 of the surgical universal forceps. After the surgical universal forceps is used, the cleaning port 30 is cleaned, and water flows along the cleaning port 30 into the interior of the surgical universal forceps, thereby cleaning the surgical universal forceps.

[0067] Working principle: Press the front handle 7, the front handle 7 moves around the rotating shaft 17, the front handle 7 pulls the first nickel-titanium wire rope 19, drives the rope rod 36 and the second nickel-titanium wire rope 54 to move together, the second nickel-titanium wire rope 54 pulls the transmission pin 51, the transmission pin 51 pulls the transmission sheet 49 to move, and the transmission sheet 49 pulls the upper head 47 and the lower head 53 to close. When the handle is released, the return spring 50 pushes the transmission pin 51 back to the original position, the upper head 47 and the lower head 53 are in the open state again, and the second tension spring 14 pulls the front handle 7 back to the original position, realizing the opening and closing function of the universal forceps for surgery; the lock buckle 8 cooperates with the hook 12 to realize the self-locking function of the universal forceps for surgery;

[0068] The contraction of the unloading spring 26 eliminates the force applied to the front handle 7, thereby ensuring that the first nickel-titanium wire rope 19 will not break or fall off due to excessive force; when the hand rotates the rotating handle 31, the rotating handle 31 drives the rotating component 60 to rotate together with the rod sleeve 29. Since the rod body 4 and the rod sleeve 29 are welded together, the rod body 4 will rotate together, thereby rotating with the head; the surgical universal forceps has a 360° rotation. Compared with traditional surgical universal forceps, the surgical universal forceps have a larger operating range in the same channel;

[0069] By rotating the rotating wheel 38, the rotating sleeve 39 and the transmission pin 41 rotate together, and the transmission pin 41 and the rotating groove in the transmission shaft 37 cooperate with each other, driving the transmission shaft 37 and the second connecting shaft 35 fixed on the transmission shaft 37 to move forward and backward. The second connecting shaft 35 moves forward to push the swing arm body 42 to swing right, and the second connecting shaft 35 moves backward to pull the swing arm body 42 to swing left, thereby realizing the left and right swinging function of the universal forceps for surgery. The universal forceps for surgery can achieve a left and right swing of ≥50°. Compared with traditional surgical forceps, the universal forceps effectively solves the problem that the universal forceps for surgery have narrow working channels, large lesion areas, and require multiple holes to complete the operation.

[0070] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A surgical universal forceps with anti-breakage and self-locking function, comprising a handle body (1), a hook (12), a first nickel-titanium wire rope (19), a front handle (7) and a forceps head (6), characterized in that: A first positioning screw (9) is fixedly mounted on the inner wall side of the handle body (1); a front handle (7) is movably mounted on the outer wall side of the handle body (1); a pliers head (6) is movably mounted on the outer wall side of the handle body (1); a hook (12) is fixedly mounted on the inner wall side of the handle body (1); a first tension spring (10) is fixedly mounted on the outer wall side of the first positioning screw (9); the first tension spring (10) is connected to the hook (12) through a head hook; the hook (12) is fixedly mounted on the inner wall side of the handle body (1); a positioning column (11) is fixedly mounted on one end of the hook (12); an unlocking button (24) is fixedly mounted in the middle of the hook (12); a second positioning screw (13) is fixedly mounted on the inner wall side of the handle body (1); a second tension spring (14) is sleeved on the outer wall of the second positioning screw (13); the second tension spring (14) is connected to a hanging hole (15) provided on the middle side of the front handle (7) through a head hook. Together, a first shaft sleeve (16) is fixedly mounted on the side of the middle outer wall of the front handle (7), a rotating shaft (17) is movably mounted in the middle of the first shaft sleeve (16), a positioning sleeve (18) is fixedly mounted on the upper end of the front handle (7), the positioning sleeve (18) and the first nickel-titanium wire rope (19) are riveted together, a transmission wheel (20) is fixedly mounted on the side of the inner wall of the handle body (1), the first nickel-titanium wire rope (19) is connected to the pliers head (6) around the transmission wheel (20), the transmission wheel (20) is movably mounted on the force unloading device (21), a connecting sleeve (22) is fixedly mounted on the front end of the handle body (1), and the connecting sleeve (22) is connected to the second rotating device (3) through a thread, the force unloading device (21) and the first rotating device (2) are movably mounted in the handle body (1), a locking buckle (8) is fixedly mounted on the side of the outer wall of the front handle (7), and the locking buckle (8) is fixed by a screw (23) fixedly mounted on the bottom of the inner wall of the front handle (7).

2. The surgical universal forceps with anti-breakage and self-locking function according to claim 1, characterized in that: The force unloading device (21) is installed in the handle body (1); a force unloading shell (56) is fixedly installed on the side of the handle body (1); a positioning pin (55) is inserted into the force unloading shell (56); a movable shaft (27) is movably installed on the side of the outer wall of the force unloading shell (56); a force unloading spring (26) is fixedly sleeved in the middle of the movable shaft (27); an adjusting nut (25) is fixedly installed on the side of the outer wall of the rear end of the movable shaft (27) for adjusting the maximum force of the universal forceps for surgery; a transmission wheel (20) is fixedly installed on the front end of the movable shaft (27); and a rotating shaft (28) is fixedly installed on the side of the outer wall of the transmission wheel (20).

3. The surgical universal forceps with anti-breakage and self-locking function according to claim 1, characterized in that: The handle body (1) is mounted together with the first connecting shaft (32) in the second rotating device (3) through the front connecting sleeve (22); a rubber pad (57) and a rotating component (60) are fixedly mounted on the inner wall surface of the first connecting shaft (32); a copper sleeve (58) and a threaded sleeve (59) are fixedly mounted on the tail end of the first connecting shaft (32); a limit pin (61) is fixedly inserted and connected directly below the end surface of the rotating component (60); a spring (62) and a positioning steel ball (63) are fixedly mounted directly above the rotating component (60); a rod sleeve (29) is fixedly mounted on the threaded portion of the rotating component (60); the rod sleeve (29) is connected to the rotating component (60) through threads; a rotating handle (31) is sleeved on the surface of the rod sleeve (29); a flushing port (30) is fixedly mounted at the front end hole position of the rotating handle (31); the flushing port (30) connects the rod sleeve (29) and the rotating handle (31) together through threads; and a fixing screw (65) is movably mounted on the inner wall of the connecting sleeve (22).

4. The surgical universal forceps with anti-breakage and self-locking function according to claim 3, characterized in that: The rod body (4) is fixedly mounted on the outer wall side of the rod sleeve (29) in the second rotating device (3) via an outer tube (34); a second connecting shaft (35) is fixedly mounted inside the outer tube (34); a rope rod (36) is fixedly sleeved inside the second connecting shaft (35); a connecting piece (33) is fixedly mounted on the front end of the outer tube (34); the connecting piece (33) is connected to the swing structure (5); a first rotating device (2) is fixedly mounted on the rear end surface of the second connecting shaft (35); and the first rotating device (2) is fixed inside the second connecting shaft (35) via a second shaft sleeve (64).

5. The surgical universal forceps with anti-breakage and self-locking function according to claim 4, characterized in that: The first rotating device (2) is mounted together with the rod body (4) in the handle body (1); the transmission shaft (37) is fixedly mounted on the surface of the second connecting shaft (35); a rotating sleeve (39) is fixedly sleeved on the surface of the transmission shaft (37); a transmission pin (41) is mounted in two small holes in the middle of the rotating sleeve (39); the transmission pin (41) cooperates with a spiral groove in the middle of the transmission shaft (37).

6. The surgical universal forceps with anti-breakage and self-locking function according to claim 4, characterized in that: The connecting member (33) is fixedly connected to the swing arm body (42) via a third connecting pin (46); the other end of the swing arm body (42) is fixedly mounted on a connecting plate (44) and movably connected via a first connecting pin (43); the other end of the connecting plate (44) is mounted on a second connecting shaft (35) in the rod body (4) and movably connected via a second connecting pin (45).

7. The surgical universal forceps with anti-breakage and self-locking function according to claim 1, characterized in that: The front end of the clamp head (6) is fixedly provided with an upper head (47) and a lower head (53), and the inner wall sides of the upper head (47) and the lower head (53) are respectively provided with transmission plates (49), the transmission plates (49) are connected by positioning pins (48), and the other end of the transmission plates (49) is fixedly connected with a transmission pin shaft (51), and the transmission pin shaft (51) is slidably installed in a sliding groove provided on the outer wall of the swing arm body (42).

8. The surgical universal forceps with anti-breakage and self-locking function according to claim 7, characterized in that: A second nickel-titanium wire rope (54) is installed in the middle of the driving pin shaft (51), a return spring (50) is sleeved on the surface of the second nickel-titanium wire rope (54), and the return spring (50) is installed in a groove of the swing arm body (42).

9. The surgical universal forceps with anti-breakage and self-locking function according to claim 7, characterized in that: The upper head (47) and the lower head (53) are combined together and then mounted on the swing arm body (42); the upper head (47) and the lower head (53) are fixedly connected using a fourth connecting pin (52).

10. The surgical universal forceps with anti-breakage and self-locking function according to claim 5, characterized in that: A rotating wheel (38) is fixedly mounted on the surface of the rotating sleeve (39), a slide groove (40) is fixedly mounted on the tail end of the transmission shaft (37), a center column (68) is mounted on the side of the handle body (1), and is fastened to the side of the handle body (1) by interference fit, a return spring (67) is mounted on the surface of the center column (68), a hook (12) is mounted on the upper end of the return spring (67), an unlocking button (24) is mounted on the hook (12), a bayonet (66) is mounted in a round hole on the side of the unlocking button (24), and the bayonet (66) is fixed to the unlocking button (24) by welding.

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