Stable clamping tool for joint replacement surgery

Abstract

The stable clamping tool comprises a base, a through opening, an annular groove, a handle, a clamping rod, an adjusting device and a control panel, a fixing plate is arranged on the surface of the handle in a sleeved mode, the inner side of the fixing plate is movably connected with the two sides of the base, a positioning assembly is arranged on the inner side of the fixing plate, and the adjusting device is arranged on the fixing plate. A protection assembly is arranged on the inner side of the clamping rod. The fixing plate is arranged, when the handle drives the control disc to rotate, then the control disc drives the adjusting device to move, the adjusting device drives the clamping rod to clamp a joint prosthesis, meanwhile, the fixing plate rotates along with the handle, the handle is in contact friction with the two sides of the base, and the joint prosthesis is clamped. The problems that due to the fact that the joint prosthesis lacks effective positioning after being clamped, when a patient moves the body, a clamping rod is prone to being disengaged from the joint prosthesis, and the joint prosthesis can be possibly damaged are solved.

Description

Technical Field

[0001] This utility model relates to the field of surgical instrument technology, specifically a stabilizing clamping tool for joint replacement surgery. Background Technology

[0002] Joint replacement surgical clamps are precision instruments designed specifically for orthopedic surgery. They are primarily used to stabilize and manipulate bone or prostheses during joint replacement procedures. These tools typically feature sophisticated adjustment mechanisms that ensure precise positioning and fixation of the prosthesis or bone fragments, thereby assisting surgeons in performing accurate cutting, reshaping, and implantation procedures.

[0003] For example, application number CN202223318191.5 relates to the field of surgical instrument technology, specifically a joint replacement surgery clamping tool, including a base. Both ends of the base have openings, and a main board is located within each opening. A sliding groove is embedded in the main board, and a limiting device is located within the sliding groove. The limiting device includes a limiting block connected to the sliding groove, and an annular sliding groove is embedded in the limiting block. An abutment block slides within the annular sliding groove. A lifting device is located outside the limiting device within the sliding groove. This utility model, with its limiting device, lifting device, and adjustment device, allows medical personnel to adjust the clamping rod to open and close, adapting it to different sizes of joint prostheses. The operation is simple and convenient. Furthermore, the use of a polycarbonate clamping rod and a sponge pad protects the joint prosthesis, preventing damage from friction and ensuring the quality of the joint prosthesis.

[0004] Based on the search of the aforementioned patents and the findings of existing devices, while the aforementioned devices can solve the problem that the technology requires adjustment of each rotating column to complete the clamping of the object, which is cumbersome and unsuitable for clamping joint prostheses, and is prone to causing friction and damage to the joint prosthesis, during use, the lack of effective positioning of the joint prosthesis after clamping causes the clamping rod to easily detach from the joint prosthesis when the patient moves, and may also cause damage to the joint prosthesis. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a stable clamping tool for joint replacement surgery, which has the advantages of joint prosthesis positioning and protection. It solves the problem that the joint prosthesis lacks effective positioning after clamping, which causes the clamping rod to easily detach from the joint prosthesis when the patient moves, and may also cause damage to the joint prosthesis.

[0006] To achieve the above object, the utility model provides the following technical scheme: A kind of stable clamping tool for joint replacement surgery, including base, pass, annular groove, handle, clamping rod, adjusting device and control disc, the pass is all set in the both sides of base top, the adjusting device is all movably connected in the both sides of pass interior, the clamping rod is movably connected in the one end of adjusting device by damping pivot, the annular groove is all set in the both sides of base, the control disc is fixedly connected in the one end of adjusting device away from clamping rod, the handle is fixedly connected in the outside of control disc, the annular groove is slidably connected with handle, the surface of handle is equipped with fixed plate, the both sides of fixed plate are movably connected with base, the inside of fixed plate is provided with positioning assembly, the inside of clamping rod is provided with protection assembly.

[0007] As the utility model is preferred, the positioning assembly includes positioning piece and positioning hole, the positioning hole is set in the both sides of base, the positioning hole is provided with several and is annular equidistance distribution, the positioning piece is fixedly connected in the one side of fixed plate inside away from handle, the positioning piece is movably connected with positioning hole.

[0008] As the utility model is preferred, the protection assembly includes protection plate and spring, the protection plate is set in the inside of clamping rod, the spring is all fixedly connected in the both sides of protection plate outside, the other end of spring is with the inside of clamping rod.

[0009] As the utility model is preferred, the both sides of protection plate outside are all fixedly connected with pin shaft, the other end of pin shaft is penetrated to the outside of clamping rod, the spring is equipped on the surface of pin shaft.

[0010] As the utility model is preferred, the handle surface is fixedly connected with fixed ring, the outside of fixed ring is fixedly connected with tension spring, the other end of tension spring is fixedly connected with the one side of fixed plate inside close to handle, the tension spring is equipped on the surface of handle.

[0011] As the utility model is preferred, the one end of handle away from control disc is fixedly connected with limiting piece, the inside of limiting piece is movably connected with the outside of fixed plate.

[0012] As the utility model is preferred, the bottom of base movably inlays ball, the ball is provided with several and is annular equidistance distribution.

[0013] Compared with prior art, the utility model has the beneficial effects as follows:

[0014] 1. The utility model discloses a fixing plate is set up, when handle drives control disc to rotate, then makes control disc drive adjusting device to remove, to make adjusting device drive clamping rod to hold joint prosthesis, and the both sides of handle and base are contacted and rubbed simultaneously with the rotation of fixing plate, the problem that the joint prosthesis lacks effective positioning after clamping is completed, leading to when the patient moves the body, the clamping rod is easy to separate from joint prosthesis, and also can cause damage to joint prosthesis is solved, has the advantage that joint prosthesis positioning protection.

[0015] 2. The utility model discloses a positioning assembly is set up, after clamping rod holds joint prosthesis, through the sliding fixing plate at handle surface, then makes fixing plate drive locating piece to rotate, finally makes locating piece insert corresponding positioning hole inside, and the both sides of handle and base are contacted simultaneously with the inside of fixing plate, to complete the positioning of clamping, and when clamping rod holds joint prosthesis firmly, the protection plate replaces clamping rod and contacts joint prosthesis simultaneously, and the spring is extruded when protection plate contacts, makes spring buffer protection plate and joint prosthesis contact, to protect joint prosthesis, prevent the harm caused by clamping contact.

[0016] 3. The utility model discloses a pin shaft is set up, increases the stability and safety of spring, prevents the spring from appearing distortion and damage in the process of extrusion, to prolong the service life of spring, and through setting up fixed ring and tension spring, when needing to position joint prosthesis, can move fixing plate at handle surface, makes fixing plate drive locating piece to remove, and fixing plate drive tension spring to stretch simultaneously, to make locating piece separate from positioning hole inside, after joint prosthesis clamping is completed, locating piece is connected with positioning hole, makes tension spring release tension and drive fixing plate to remove, and fixing plate drive locating piece inserts positioning hole inside simultaneously, to complete the function that locating piece automatic rebound positioning. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the utility model Figure 1 It is the enlarged structure schematic diagram of A place in the utility model;

[0019] Figure 3 It is the three-dimensional explosion structure schematic diagram of the utility model protection assembly.

[0020] In the drawing: 1, base; 2, mouth; 3, annular groove; 4, handle; 5, clamping rod; 6, adjusting device; 7, control disc; 8, fixing plate; 9, positioning assembly; 91, locating piece; 92, positioning hole; 10, protection assembly; 101, protection plate; 102, spring; 11, pin shaft; 12, fixed ring; 13, tension spring; 14, limiting piece; 15, ball bearing. DETAILED DESCRIPTION

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

[0022] As shown in Figures 1 to 3 The utility model provides a kind of stable clamping tool for joint replacement surgery, including base 1, pass 2, annular groove 3, handle 4, clamping rod 5, adjusting device 6 and control disc 7, pass 2 all are set in the both sides of base 1 top, adjusting device 6 are movably connected in the both sides of pass 2 interior, clamping rod 5 is movably connected in the one end of adjusting device 6 by damping pivot, annular groove 3 all are set in the both sides of base 1, control disc 7 is fixedly connected in the one end of adjusting device 6 away from clamping rod 5, handle 4 is fixedly connected in the outside of control disc 7, annular groove 3 is slidably connected with handle 4, the surface of handle 4 is equipped with fixed plate 8, the both sides of fixed plate 8 inside and base 1 are movably connected, fixed plate 8 inside is provided with positioning assembly 9, the inside of clamping rod 5 is provided with protection assembly 10.

[0023] Referring to Figure 2 Positioning assembly 9 includes positioning piece 91 and positioning hole 92, positioning hole 92 is set in the both sides of base 1, positioning hole 92 is provided with several and is annular equidistant distribution, positioning piece 91 is fixedly connected in the one side of fixed plate 8 inside away from handle 4, positioning piece 91 is movably connected with positioning hole 92.

[0024] As a kind of technical optimization scheme of the utility model, by setting positioning assembly 9, after clamping rod 5 is clamped to joint prosthesis, by sliding fixed plate 8 on the face of handle 4, then make fixed plate 8 drive positioning piece 91 to rotate, finally make positioning piece 91 insert into the inside of corresponding positioning hole 92, while the inside of fixed plate 8 and the both sides of base 1 contact, to complete the positioning of clamping.

[0025] Referring to Figure 3 Protection assembly 10 includes protection plate 101 and spring 102, protection plate 101 is arranged on the inside of clamping rod 5, spring 102 is fixedly connected on the both sides of the outside of protection plate 101, the other end of spring 102 and the inside of clamping rod 5.

[0026] As a technical optimization scheme of the utility model, when the clamping rod 5 stably clamps the joint prosthesis, the protection plate 101 replaces the clamping rod 5 to contact the joint prosthesis, and the spring 102 is extruded when the protection plate 101 contacts, so that the spring 102 buffers the contact between the protection plate 101 and the joint prosthesis, thereby protecting the joint prosthesis and preventing damage caused by clamping contact.

[0027] Reference Figure 3 The two sides of the outer side of the protection plate 101 are fixedly connected with pin shafts 11, the other ends of the pin shafts 11 penetrate to the outer side of the clamping rod 5, and the spring 102 is sleeved on the surface of the pin shaft 11.

[0028] As a technical optimization scheme of the utility model, the stability and safety of the spring 102 are improved by the pin shaft 11, so that the spring 102 is prevented from being twisted and damaged during extrusion, thereby prolonging the service life of the spring 102.

[0029] Reference Figure 2 The surface of the handle 4 is fixedly connected with a fixed ring 12, the outer side of the fixed ring 12 is fixedly connected with a tension spring 13, the other end of the tension spring 13 is fixedly connected with the inner side of the fixed plate 8 close to one side of the handle 4, and the tension spring 13 is sleeved on the surface of the handle 4.

[0030] As a technical optimization scheme of the utility model, when the joint prosthesis needs to be positioned, the fixed plate 8 is moved on the surface of the handle 4, so that the fixed plate 8 drives the positioning piece 91 to move, and the fixed plate 8 drives the tension spring 13 to stretch, so that the positioning piece 91 is separated from the inside of the positioning hole 92, after the clamping of the joint prosthesis is completed, the positioning piece 91 is communicated with the positioning hole 92, so that the tension spring 13 releases the tension to drive the fixed plate 8 to move, and the fixed plate 8 drives the positioning piece 91 to insert into the inside of the positioning hole 92, thereby achieving the automatic rebound positioning of the positioning piece 91.

[0031] Reference Figure 2 The end of the handle 4 away from the control disc 7 is fixedly connected with a limiting piece 14, and the inner side of the limiting piece 14 is movably connected with the outer side of the fixed plate 8.

[0032] As a technical optimization scheme of the utility model, when the fixed plate 8 drives the tension spring 13 to stretch, the movement of the fixed plate 8 is limited by the limiting piece 14, so that the fixed plate 8 is prevented from sliding out of the surface of the handle 4.

[0033] Reference Figure 1 The bottom of the base 1 movably inlays a plurality of rolling balls 15 which are annularly and equidistantly distributed.

[0034] As a technical optimization scheme of the utility model, through setting ball 15, when joint prosthesis needs to be moved, the surface of ball 15 replaces the bottom of base 1 and contacts with contact surface, ball 15 can slide on plane, thereby moving replacement is moved by sliding to reduce the physical strength consumed by user.

[0035] The working principle and use flow of the utility model: when positioning joint prosthesis is needed during use, the fixed plate 8 is moved on the surface of the handle 4 to drive the positioning piece 91 to move, and the fixed plate 8 drives the tension spring 13 to stretch, so that the positioning piece 91 is separated from the inside of the positioning hole 92, then the handle 4 drives the control disc 7 to rotate, and then the control disc 7 drives the adjusting device 6 to move, so that the adjusting device 6 drives the clamping rod 5 to clamp the joint prosthesis, when the clamping rod 5 stably clamps the joint prosthesis, the protection plate 101 contacts with the joint prosthesis to replace the clamping rod 5, and the spring 102 is extruded when the protection plate 101 contacts, so that the spring 102 buffers the contact between the protection plate 101 and the joint prosthesis, thereby protecting the joint prosthesis from damage caused by clamping contact, after the joint prosthesis is clamped, the positioning piece 91 is communicated with the corresponding positioning hole 92, so that the tension of the tension spring 13 is released to drive the fixed plate 8 to move, and the fixed plate 8 drives the positioning piece 91 to insert into the inside of the positioning hole 92, thereby completing the positioning of clamping, thus the joint prosthesis positioning protection is achieved.

[0036] In summary: the stable clamping tool for joint replacement surgery, the handle 4 drives the control disc 7 to rotate, and then the control disc 7 drives the adjusting device 6 to move, so that the adjusting device 6 drives the clamping rod 5 to clamp the joint prosthesis, and the fixed plate 8 rotates with the handle 4 to make the handle 4 contact and rub with the two sides of the base 1, which solves the problem that the joint prosthesis lacks effective positioning after clamping, causing the clamping rod to easily separate from the joint prosthesis when the patient moves the body, and also causing damage to the joint prosthesis.

[0037] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stabilizing clamping tool for joint replacement surgery, comprising a base (1), a through-hole (2), an annular groove (3), a handle (4), a clamping rod (5), an adjusting device (6), and a control panel (7), characterized in that: The openings (2) are all opened on both sides of the top of the base (1). The adjusting devices (6) are all movably connected to both sides inside the openings (2). The clamping rod (5) is movably connected to one end of the adjusting device (6) through a damping shaft. The annular grooves (3) are all opened on both sides of the base (1). The control panel (7) is fixedly connected to the end of the adjusting device (6) away from the clamping rod (5). The handle (4) is fixedly connected to the outside of the control panel (7). The annular groove (3) is slidably connected to the handle (4). The surface of the handle (4) is fitted with a fixing plate (8). The inner side of the fixing plate (8) is movably connected to both sides of the base (1). The inner side of the fixing plate (8) is provided with a positioning component (9). The inner side of the clamping rod (5) is provided with a protective component (10).

2. The stabilizing clamping tool for joint replacement surgery according to claim 1, characterized in that: The positioning component (9) includes a positioning element (91) and a positioning hole (92). The positioning hole (92) is opened on both sides of the base (1). There are several positioning holes (92) and they are distributed in a ring at equal distances. The positioning element (91) is fixedly connected to the side of the fixing plate (8) away from the handle (4). The positioning element (91) is movably connected to the positioning hole (92).

3. The stabilizing clamping tool for joint replacement surgery according to claim 1, characterized in that: The protective assembly (10) includes a protective plate (101) and a spring (102). The protective plate (101) is disposed on the inner side of the clamping rod (5), and the springs (102) are fixedly connected to both sides of the outer side of the protective plate (101). The other end of the spring (102) is connected to the inner side of the clamping rod (5).

4. A stabilizing clamping tool for joint replacement surgery according to claim 3, characterized in that: Pins (11) are fixedly connected to both sides of the outer side of the protective plate (101). The other end of the pin (11) extends through to the outside of the clamping rod (5). The spring (102) is sleeved on the surface of the pin (11).

5. A stabilizing clamping tool for joint replacement surgery according to claim 1, characterized in that: A fixing ring (12) is fixedly connected to the surface of the handle (4), and a tension spring (13) is fixedly connected to the outside of the fixing ring (12). The other end of the tension spring (13) is fixedly connected to the inner side of the fixing plate (8) near the handle (4). The tension spring (13) is sleeved on the surface of the handle (4).

6. A stabilizing clamping tool for joint replacement surgery according to claim 1, characterized in that: The end of the handle (4) away from the control panel (7) is fixedly connected to a limiting member (14), and the inner side of the limiting member (14) is movably connected to the outer side of the fixing plate (8).

7. A stabilizing clamping tool for joint replacement surgery according to claim 1, characterized in that: The bottom of the base (1) is movably inlaid with ball bearings (15), and the ball bearings (15) are arranged in a plurality of them and are distributed in a ring at equal intervals.

Images