Medical guiding bone holding forceps

Abstract

The utility model discloses a pair of medical guide bone holding forceps, which belongs to the technical field of medical instruments and comprises a first forceps handle and a second forceps handle. Guiders are detachably installed at the head ends of the first forceps handle and the second forceps handle through threads, and guide holes used for fixing and guiding a kirschner wire are formed in the guiders. An adjusting assembly for positioning the clamping angle of the guide bone holding forceps is arranged on the inner surface of the second forceps handle; a first holding handle and a second holding handle are arranged on the surfaces of the ends of the first plier handle and the second plier handle respectively, the end of the second holding handle is movably connected with an adjusting connecting plate, and a plier handle reset assembly is arranged at the bottom of the first holding handle. The angle of the bone holding forceps can be conveniently adjusted and fixed, the bone holding forceps are convenient to use, the kirschner wire can be guided to be fixed when the bone holding forceps are used, a clamped fracture area cannot be shielded or blocked, the fixing stability of the kirschner wire is improved, and the optimal and firtest position of fracture fixation is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a medical guiding bone holding forceps. Background Technique

[0002] Bone holding forceps play a role in reducing fractures and temporarily fixing and maintaining the alignment of fractures in orthopedics, providing great convenience for orthopedic surgeons. However, due to the following reasons, it is often necessary to replace them with Kirschner wire fixation; for comminuted fractures, multiple reductions and fixations are required. Due to the small operating space, multiple bone holding forceps cannot be inserted simultaneously to maintain the position, so it is replaced with Kirschner wire temporary fixation, and the limited number of bone holding forceps can be reused repeatedly; second, after the bone holding forceps are fixed, it blocks the insertion of the steel plate, so it is replaced with Kirschner wire fixation to facilitate the insertion of the steel plate. Therefore, in trauma orthopedics, the combined use of bone holding forceps and Kirschner wires is particularly important. However, in the process of replacing the bone holding forceps with Kirschner wire fixation, there are still the following problems: due to the small fracture fragments, the reduced fragments are often blocked by the bone holding forceps after reduction, affecting the insertion of the Kirschner wire, and the blocked part by the bone holding forceps is often the best and firmest position for Kirschner wire fixation, so that doctors have to insert the Kirschner wire outside the bone holding forceps for fixation, resulting in flaws in reduction and fixation.

[0003] As in the prior art, a fracture clamp with the publication number of CN110495929B. The fracture clamp of this technical solution can be freely adjusted in multiple directions. The Y-direction adjustment structure is convenient for repairing misaligned bones. The inclined settings of the first clamp head and the second clamp head are convenient for further reducing and restoring misaligned bones. At the same time, the structure is simple, the operation is convenient, and it is conducive to adjustment.

[0004] From the above fracture clamp, it can be seen that the prior art has the following problems: during use, the bone holding forceps are inconvenient to play a guiding and positioning role for the Kirschner wire, will block the fracture area, affect the insertion and fixation of the Kirschner wire, and have to insert the Kirschner wire outside the bone holding forceps for fixation, resulting in flaws in reduction and fixation. Therefore, we need to propose a medical guiding bone holding forceps. Content of the Utility Model

[0005] The purpose of the utility model is to provide a medical guiding bone holding forceps, which can conveniently adjust and fix the angle of the bone holding forceps. At the same time, when in use, the bone holding forceps can be quickly opened for operation, which is convenient to use. It can play a guiding role in the fixation of the Kirschner wire during use, will not block or hinder the clamped fracture area, improve the fixation stability of the Kirschner wire, and further ensure the best and firmest position for fracture fixation, so as to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides a medical guiding bone holding forceps, which includes a first forceps handle and a second forceps handle. The first forceps handle is movably connected to the second forceps handle through a pin shaft. A guide is detachably installed at the head ends of the first forceps handle and the second forceps handle through threads. A guiding hole for fixing and guiding a Kirschner wire is provided inside the guide. An adjusting assembly for positioning the clamping angle of the guiding bone holding forceps is arranged on the inner surface of the second forceps handle. First and second holding handles are respectively arranged on the end surfaces of the first forceps handle and the second forceps handle. An adjusting connecting plate is movably connected to the end of the second holding handle. A forceps handle reset assembly is arranged at the bottom of the first holding handle. An adjusting block of the forceps handle reset assembly is movably connected to the end of the adjusting connecting plate.

[0007] Preferably, second threaded guiding holes and first threaded guiding holes are respectively provided at the head ends of the first forceps handle and the second forceps handle. A threaded cylinder is arranged at the end of the guide. The threaded cylinder is arranged in cooperation with the inner walls of the first threaded guiding hole and the second threaded guiding hole.

[0008] Preferably, the adjusting assembly includes a connecting plate connected to the inner surface of the second forceps handle and a connecting shaft movably connected inside the connecting plate. An adjustable angle screw is connected to the surface of the connecting shaft. An oval fixing hole is provided on the surface of the first forceps handle.

[0009] Preferably, the surface of the adjustable angle screw is movably arranged on the inner wall of the oval fixing hole. An adjusting nut is threadedly connected to the surface of one end of the adjustable angle screw outside the first forceps handle.

[0010] Preferably, a fixing plate is connected to the end surface of the second holding handle. The bottom end of the adjusting connecting plate is movably connected to the inner surface of the fixing plate.

[0011] Preferably, the forceps handle reset assembly includes a fixing frame connected to the bottom of the first holding handle and a limiting guide rod connected inside the fixing frame. The adjusting block is movably installed on the surface of the limiting guide rod. Limiting rods are connected to both ends of the adjusting block. A reset spring is sleeved on the surface of the limiting guide rod.

[0012] Preferably, one end of the reset spring is movably connected to one side of the adjusting block. Limiting guide grooves are provided on both sides of the inner wall of the fixing frame. The limiting rods are slidably connected to the inner walls of the limiting guide grooves.

[0013] Preferably, an assembly plate is connected to the bottom end of the adjusting block. The top end of the adjusting connecting plate is movably connected to the surface of the assembly plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] Through the cooperative setting of structures such as a guide, a first holding handle, a second holding handle, an adjusting connecting plate, an adjusting assembly, and a pliers handle reset assembly, the reset spring sleeved on the surface of the limit guide rod can act on the adjusting block, causing the adjusting block to move towards the end of the first holding handle on the surface of the limit guide rod. Cooperating with the adjusting connecting plate, the first holding handle and the second holding handle can be unfolded, and the head end of the pliers handle can be opened, facilitating the clamping and fixing of the fracture site. At the same time, by controlling the adjusting nut to move towards the first pliers handle on the surface of the adjustable angle screw rod, the angle between the first pliers handle and the second pliers handle can be fixed, improving the stability of the fracture site reduction. After the fracture site is reduced, the guide can be freely installed inside the first threaded guide hole or the second threaded guide hole through the threaded cylinder, facilitating the insertion of a Kirschner wire. After the temporary fixation is firm, the guide is removed, and the bone holding pliers are removed to continue the next operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the main structure of the medical guide bone holding pliers of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the guide of the present utility model;

[0018] Figure 3 is a schematic diagram of the structure of the adjustable angle screw rod of the present utility model;

[0019] Figure 4 is a schematic diagram of the structure of the fixed frame of the present utility model.

[0020] In the figure: 1. First pliers handle; 2. Second pliers handle; 3. Pin shaft; 4. First threaded guide hole; 5. Second threaded guide hole; 6. Guide; 7. Oval fixing hole; 8. Adjustable angle screw rod; 9. Adjusting nut; 10. Connecting shaft; 11. Connecting plate; 12. Threaded cylinder; 13. Guide hole; 14. First holding handle; 15. Second holding handle; 16. Fixed plate; 17. Adjusting connecting plate; 18. Fixed frame; 19. Limit guide rod; 20. Reset spring; 21. Adjusting block; 22. Limit rod; 23. Assembly plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4, the present utility model provides: a medical guiding bone holding forceps, which includes a first forceps handle 1 and a second forceps handle 2. The first forceps handle 1 is movably connected to the second forceps handle 2 through a pin shaft 3; a guide 6 is detachably installed at the head ends of the first forceps handle 1 and the second forceps handle 2 through threads. A guiding hole 13 for fixing and guiding a Kirschner wire is provided inside the guide 6; an adjusting assembly for positioning the clamping angle of the guiding bone holding forceps is arranged on the inner surface of the second forceps handle 2; first holding handles 14 and second holding handles 15 are respectively arranged on the end surfaces of the first forceps handle 1 and the second forceps handle 2. An adjusting connecting plate 17 is movably connected to the end of the second holding handle 15. A forceps handle reset assembly is arranged at the bottom of the first holding handle 1, and an adjusting block 21 of the forceps handle reset assembly is movably connected to the end of the adjusting connecting plate 17.

[0023] It should be noted that through the combined setting of the structures of the guide 6, the first holding handle 14, the second holding handle 15, the adjusting connecting plate 17, the adjusting assembly and the forceps handle reset assembly, the angle of the bone holding forceps can be conveniently adjusted and fixed. At the same time, during use, the bone holding forceps can be quickly opened for operation, which is convenient to use. It can play a guiding role in the fixation of the Kirschner wire during use, will not block or hinder the clamped fracture area, improve the stability of the Kirschner wire fixation, and further ensure the best and firmest position for fracture fixation.

[0024] The two forceps handles of the first forceps handle 1 and the second forceps handle 2 are hinged through a pin shaft 3. An oval fixing hole 7 is provided on the first forceps handle 1, and an adjustable angle screw rod 8 is provided on the second forceps handle. An adjusting nut 9 is provided at the outer end of the adjustable angle screw rod 8. The adjustable angle screw rod 8 passes through the oval fixing hole 7. When the nut is loosened, the two forceps handles can be freely opened to 70 degrees with the pin shaft 3 as the center, and the head ends of the two forceps handles are in a tiger's mouth shape, which plays a role in clamping and reducing the bone. Tightening the nut can maintain the bone holding forceps in a certain state, playing a role in temporarily fixing the fracture end. Guiding holes are provided at the tiger's mouth of the head ends of the two forceps handles. The guide 6 can be freely installed and disassembled in the guiding holes through a threaded cylinder 12. The disassembled state of the guide 6 is convenient for the operation of the bone holding forceps during surgery. After the fracture site is successfully reduced, the guide 6 is installed, the Kirschner wire is inserted. After the temporary fixation is firm, the guide 6 is removed, the bone holding forceps is removed, and the next step of operation is continued. Therefore, as long as the Kirschner wire is inserted along the guiding holes at the tiger's mouth of the head end of the bone holding forceps, the fracture fragments in the blind area of the opposite side visual field can often be fixed.

[0025] Specifically, second threaded guiding holes 5 and first threaded guiding holes 4 are respectively opened at the head ends of the first forceps handle 1 and the second forceps handle 2. A threaded cylinder 12 is arranged at the end of the guide 6, and the threaded cylinder 12 is arranged in cooperation with the inner walls of the first threaded guiding hole 4 and the second threaded guiding hole 5. A fixing plate 16 is connected to the end surface of the second holding handle 15, and the bottom end of the adjusting connecting plate 17 is movably connected to the inner surface of the fixing plate 16.

[0026] Furthermore, the first threaded guide hole 4 and the second threaded guide hole 5 are structures for installing the guide 6. Through the guide 6, the Kirschner wire can be conveniently inserted into the clamping area, further improving the fixing stability and ensuring the effect of fracture treatment. When adjusting the connecting plate 17, the first holding handle 14 cooperates with the second holding handle 15 in a linkage structure, and serves as an anti-slip holding area.

[0027] The adjusting assembly includes: a connecting plate 11 connected to the inner surface of the second pliers handle 2, and a connecting shaft 10 movably connected inside the connecting plate 11; wherein, an adjustable-angle screw rod 8 is connected to the surface of the connecting shaft 10, and an oval fixing hole 7 is formed on the surface of the first pliers handle 1. The surface of the adjustable-angle screw rod 8 is movably arranged on the inner wall of the oval fixing hole 7, and a adjusting nut 9 is threadedly connected to the surface of one end of the adjustable-angle screw rod 8 located outside the first pliers handle 1.

[0028] Among them, the connecting plate 11 is a connecting structure for positioning the connecting shaft 10. The adjustable-angle screw rod 8 is for installing the adjusting nut 9 and, in cooperation with the adjusting nut 9, serves to adjust and fix the clamping angle between the first pliers handle 1 and the second pliers handle 2. The oval fixing hole 7 is a structure for the first pliers handle 1 to move on the surface of the adjustable-angle screw rod 8.

[0029] The pliers handle reset assembly includes: a fixing frame 18 connected to the bottom of the first holding handle 14, and a limiting guide rod 19 connected inside the fixing frame 18; wherein, an adjusting block 21 is movably installed on the surface of the limiting guide rod 19, limiting rods 22 are connected to both ends of the adjusting block 21, and a reset spring 20 is sleeved on the surface of the limiting guide rod 19.

[0030] Furthermore, the fixing frame 18 is a structure for installing the limiting guide rod 19 and the adjusting block 21. The limiting guide rod 19 serves to guide and limit the adjusting block 21 in cooperation with the limiting rods 22. The reset spring 20 acts on the adjusting block 21 to reset the first pliers handle 1 and the second pliers handle 2.

[0031] In addition, one end of the reset spring 20 is movably connected to one side of the adjusting block 21. Limiting guide grooves are formed on both sides of the inner wall of the fixing frame 18, and the limiting rods 22 are slidably connected to the inner wall of the limiting guide grooves. The bottom end of the adjusting block 21 is connected with an assembly plate 23, and the top end of the adjusting connecting plate 17 is movably connected to the surface of the assembly plate 23. The assembly plate 23 is a structure for connecting the adjusting connecting plate 17 and the adjusting block 21, and is a connecting structure for the first holding handle 14 and the second holding handle 15 to cooperate.

[0032] The reset spring 20 sleeved on the surface of the limit guide rod 19 can act on the adjusting block 21, so that the adjusting block 21 moves towards the end of the first holding handle 14 on the surface of the limit guide rod 19. Cooperating with the adjusting connecting plate 17, the first holding handle 14 and the second holding handle 15 can be unfolded, and the head end of the pliers handle can be opened, facilitating the clamping and fixing of the fracture site. At the same time, by controlling the adjusting nut 9 to move towards the first pliers handle 1 on the surface of the adjustable angle screw rod 8, the angles of the first pliers handle 1 and the second pliers handle 2 can be fixed, which can improve the stability of the fracture site reduction. After the fracture site is reduced, the guide 6 can be freely installed inside the first thread guide hole 4 or the second thread guide hole 5 through the thread cylinder 12, facilitating the insertion of the Kirschner wire. After the temporary fixation is firm, the guide is removed, the bone holding forceps is removed, and the next operation is continued.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical guided bone forceps, characterized in that: include: A first clamp handle (1) and a second clamp handle (2), wherein the first clamp handle (1) is movably connected to the second clamp handle (2) via a pin shaft (3); The head ends of the first clamp handle (1) and the second clamp handle (2) are detachably mounted with a guide (6) via a thread, and a guide hole (13) for fixing and guiding a Kirschner wire is provided inside the guide (6); The inner surface of the second clamp handle (2) is provided with an adjustment component for positioning the clamping angle of the guide bone clamp; The end surfaces of the first pliers handle (1) and the second pliers handle (2) are respectively provided with a first holding handle (14) and a second holding handle (15); the end of the second holding handle (15) is movably connected to an adjustment connecting plate (17); the bottom of the first holding handle (14) is provided with a pliers handle reset assembly; the adjustment block (21) of the pliers handle reset assembly is movably connected to the end of the adjustment connecting plate (17).

2. A medical guided bone forceps according to claim 1, characterized in that: The head ends of the first clamp handle (1) and the second clamp handle (2) are respectively provided with a second threaded guide hole (5) and a first threaded guide hole (4); the end of the guide (6) is provided with a threaded barrel (12), and the threaded barrel (12) is arranged in cooperation with the inner walls of the first threaded guide hole (4) and the second threaded guide hole (5).

3. The medical guided bone forceps according to claim 1, characterized in that: The adjustment component includes: a connecting plate (11) connected to the inner surface of the second clamp handle (2), and A connecting shaft (10) movably connected inside the connecting plate (11); Wherein, the surface of the connecting shaft (10) is connected to an angle-adjustable screw rod (8), and the surface of the first clamp handle (1) is provided with an elliptical fixing hole (7).

4. The medical guided bone forceps according to claim 3, characterized in that: The surface of the adjustable angle screw (8) is movably arranged on the inner wall of the elliptical fixing hole (7), and one end surface of the adjustable angle screw (8) is located on the outer thread of the first clamp handle (1) and is connected to an adjusting nut (9).

5. The medical guided bone forceps according to claim 1, characterized in that: The end surface of the second holding handle (15) is connected to a fixing plate (16), and the bottom end of the adjusting connecting plate (17) is movably connected to the inner surface of the fixing plate (16).

6. The medical guided bone forceps according to claim 1, characterized in that: The clamp handle resetting assembly comprises: a fixing frame (18) connected to the bottom of the first holding handle (14), and A limiting guide rod (19) connected to the interior of the fixing frame (18); The adjusting block (21) is movably mounted on the surface of the limiting guide rod (19), the two ends of the adjusting block (21) are connected to the limiting rod (22), and the surface of the limiting guide rod (19) is sleeved with a return spring (20).

7. The medical guided bone forceps according to claim 6, characterized in that: One end of the return spring (20) is movably connected to one side of the adjustment block (21), and limiting guide grooves are provided on both sides of the inner wall of the fixed frame (18), and the limiting rod (22) is slidably connected to the inner wall of the limiting guide groove.

8. The medical guided bone forceps according to claim 7, characterized in that: The bottom end of the adjusting block (21) is connected to a mounting plate (23), and the top end of the adjusting connecting plate (17) is movably connected to the surface of the mounting plate (23).

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