Personalized bone prosthesis clamping device
By designing the sliding track and the spacing adjustment screw and spring structure of the clamping components, the problem of instability in existing clamping devices was solved, achieving stable clamping of personalized bone prostheses, reducing the risk of injury, and improving the accuracy and applicability of experiments.
Patent Information
- Application Number
- CN202422943409.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing bone prosthesis clamping devices cannot stably clamp personalized bone prostheses, resulting in insufficient clamping force. The bone prostheses are prone to shaking and tilting, affecting the accuracy of experimental operations and results.
The design incorporates a base, sliding rails, and clamping components. Through the spacing adjustment screw and spring structure, it achieves stable clamping of the bone prosthesis. The spring's thrust and the cooperation of the limiting groove ensure stable clamping and reduce damage to the prosthesis.
It achieves stable clamping of personalized bone prostheses, reduces the chance of damage to the prosthesis, and can adjust the clamping force according to the material and adapt to different lengths, thus improving the accuracy and applicability of experiments.
Smart Images
Figure CN223715861U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to experimental equipment technical field especially relates to a personalized bone prosthesis clamping device. BACKGROUND
[0002] In the field of orthopedics, bone defects caused by severe trauma, bone tumors, osteomyelitis and other reasons are very common. Common bone repair materials include autologous bone and metal prosthesis. Autologous bone increases the trauma and pain of patients; conventional metal prosthesis has problems such as loosening and not fitting with the bone. Therefore, personalized bone prosthesis transplantation for repairing bone defects has become a medical focus.
[0003] The manufactured personalized bone prosthesis needs to be manually detected in terms of material performance and size, and the bone prosthesis needs to be supported during detection, so a bone prosthesis clamping device is used to clamp the bone prosthesis and perform bone prosthesis detection, but the existing clamping device has the following problems:
[0004] 1. Since the personalized bone prosthesis has a special shape, the existing clamping device usually clamps the outer wall of the bone prosthesis by two side clamps to fix the bone prosthesis, but this fixing method not only easily damages the bone prosthesis, but also cannot completely fit the bone prosthesis due to the clamps, resulting in insufficient clamping force and easy shaking and tilting of the bone prosthesis, which affects the experimental operation and the accuracy of the results. Utility model content
[0005] In order to solve the above problems, the purpose of the utility model is to provide a personalized bone prosthesis clamping device, which solves the problem of unstable clamping of the existing clamping assembly.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A personalized bone prosthesis clamping device, comprising a base, a first sliding rail fixed on the base and arranged in the left-right direction, and a pair of clamping assemblies movably arranged in the sliding rail;
[0008] Each group of clamping assemblies comprises a base embedded in the sliding track and sliding left and right, a second sliding track fixed on the base and arranged in the front and back direction, a first support movably arranged in the front part of the second sliding track, a first clamping plate fixed on the first support, a plurality of first sliding grooves arranged on the rear side of the first clamping plate, a plurality of first limiting grooves arranged between each sliding groove, a second support movably arranged in the rear part of the second sliding track, a second clamping plate fixed on the second support, a plurality of second sliding grooves arranged on the front side of the second clamping plate corresponding to each first limiting groove, a plurality of second limiting grooves arranged on the front side of the second clamping plate corresponding to each first sliding groove, a plurality of first fixing sub-assemblies movably arranged in each first sliding groove and used for fixing the clamping object, a plurality of second fixing sub-assemblies movably arranged in each second sliding groove and used for fixing the clamping object, and a first spacing adjusting screw rotatably arranged on the second sliding track and used for adjusting the spacing between the first support and the second support.
[0009] The first fixing sub-assembly comprises a first sliding column movably arranged in the first sliding groove in the front and back direction, and a first spring fixed between the front end of the first sliding column and the front side of the first sliding groove and used for movably extending the rear end of the first sliding column out of the rear side of the first clamping plate.
[0010] The second fixing sub-assembly comprises a second sliding column movably arranged in the second sliding groove in the front and back direction, and a second spring fixed between the rear end of the second sliding column and the rear side of the first sliding groove and used for movably extending the front end of the second sliding column out of the front side of the second clamping plate.
[0011] The first spacing adjusting screw is arranged through the first support and the second support in the front and back direction, the first spacing adjusting screw is threadedly connected with the first support and the second support respectively, and the threaded directions of the first support and the second support are opposite.
[0012] More preferably, the rear end of each first sliding column and the front end of each second sliding column are fixedly provided with elastic anti-skid members.
[0013] More preferably, a second spacing adjusting screw for adjusting the spacing between the two clamping assemblies is rotatably arranged in the first sliding track, the second spacing adjusting screw is arranged through the two bases in the left and right directions, and the two bases are threadedly connected with the second spacing adjusting screw, and the threaded directions of the two bases and the second spacing adjusting screw are opposite.
[0014] More preferably, the rear end of the first spacing adjusting screw is arranged out of the rear side of the second sliding track, the rear end of the first spacing adjusting screw is fixedly provided with a first rotating handle, the left end of the second spacing adjusting screw is arranged out of the left side of the first sliding track, and the left end of the second spacing adjusting screw is fixedly provided with a second rotating handle.
[0015] The utility model has the advantages of:
[0016] 1. The utility model discloses a material needs to be placed in the clamping assembly in the clamping part, between the first clamping plate and the second clamping plate, through rotating first interval adjusting screw, drive first support and second support are close to each other, promote material two sides and first sliding column and second sliding column respectively and abut, cause with the abutment of first sliding column and second sliding column of material outer wall respectively slide into first sliding groove and second sliding groove and compress first spring and second spring respectively, promote first spring and second spring to first sliding column and second sliding column exert the thrust towards the material outer wall, thereby make material outer wall two sides receive the abutment pressure of first sliding column and second sliding column, and be fixed by limiting, and the smaller the interval between first support and second support, the greater the clamping force, simultaneously, the first sliding column and the second sliding column on the upper side of the clamped material do not abut with the front and rear sides of the material, so that the first sliding column and the second sliding column respectively extend into the first limiting groove and the second limiting groove, and the side wall of the first sliding column and the side wall of the second sliding column abut with the upper and lower sides of the material, thereby playing a role of limiting the material, reducing the probability of damage to the material under the premise of stable clamping.
[0017] 2. The utility model discloses a first interval adjusting screw is rotated and is adjusted the interval between first clamping plate and second clamping plate, thereby control the clamping force of clamping material, it is convenient for operator to adjust the clamping force to different materials, and through rotating second interval adjusting screw, the interval between two clamping assemblies is adjusted, thereby the material of different length is adjusted, make this device wide range of application. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the structure schematic diagram of the whole shaft side view of the utility model;
[0019] Figure 2 It is the structure schematic diagram of the upper transverse section of a single clamping assembly of the utility model;
[0020] Figure 3 It is the vertical structure schematic diagram of a single clamping assembly of the utility model.
[0021] EXPLANATION OF REFERENCE NUMERALS: 1, base; 2, first sliding rail; 3, clamping assembly; 31, base; 32, second sliding rail; 33, first support; 34, first clamping plate; 35, first sliding groove; 36, first limiting groove; 37, second support; 38, second clamping plate; 39, second limiting groove; 310, second sliding groove; 311, first fixed subassembly; 3111, first sliding column; 3112, first spring; 312, second fixed subassembly; 3121, second sliding column; 3122, second spring; 313, first interval adjusting screw; 4, antiskid piece; 5, second interval adjusting screw; 6, first rotating handle; 7, second rotating handle. DETAILED DESCRIPTION
[0022] The utility model will be made further detailed explanation below combining with the drawings and specific embodiment
[0023] As Figure 1 , Figure 2 and Figure 3 The personalized bone prosthesis clamping device of the embodiment includes base 1, first sliding rail 2 set up along left and right directions and fixed on base 1 and a pair of clamping assemblies 3 respectively movably set up in sliding rail,
[0024] Each group of clamping assemblies 3 includes base 31 embedded in left and right sliding of sliding rail, second sliding rail 32 set up along front and back directions and fixed on base 31, first support 33 movably set up in front of second sliding rail 32, first clamping plate 34 fixed on first support 33, first sliding groove 35 arranged on the rear side of first clamping plate 34 at intervals, first limiting groove 36 arranged between each sliding groove, second support 37 movably set up in rear of second sliding rail 32, second clamping plate 38 fixed on second support 37, second sliding groove 310 arranged on the front side of second clamping plate 38 corresponding to each first limiting groove 36, second limiting groove 39 arranged on the front side of second clamping plate 38 corresponding to each first sliding groove 35, first fixed subassembly 311 movably set up in each first sliding groove 35 and used for fixing clamping object, second fixed subassembly 312 movably set up in each second sliding groove 310 and used for fixing clamping object and first spacing adjustment screw 313 rotatably set up on second sliding rail 32 and used for adjusting the spacing between first support 33 and second support 37;
[0025] First fixed subassembly 311 includes first sliding column 3111 movably set up in first sliding groove 35 along front and back directions and first spring 3112 fixed between the front end of first sliding column 3111 and the front side of first sliding groove 35 and used for making the rear end of first sliding column 3111 movably extend out of the rear side of first clamping plate 34;
[0026] Second fixed subassembly 312 includes second sliding column 3121 movably set up in second sliding groove 310 along front and back directions and second spring 3122 fixed between the rear end of second sliding column 3121 and the rear side of first sliding groove 35 and used for making the front end of second sliding column 3121 movably extend out of the front side of second clamping plate 38;
[0027] First spacing adjustment screw 313 is set up along front and back directions through first support 33 and second support 37, first spacing adjustment screw 313 is respectively screw connected with first support 33 and second support 37 and the screw thread direction of screwing first support 33 and second support 37 is opposite.
[0028] In use, the material needs to be clamped part is placed in the clamping assembly 3, between the first clamping plate 33 and the second clamping plate 37, by rotating the first spacing adjusting screw 313, driving the first support 33 and the second support 37 to approach each other, prompting the material front and rear sides to be respectively abutted with the first sliding column 3111 and the second sliding column 3121, causing the first sliding column 3111 and the second sliding column 3121 to slide into the first sliding groove 35 and the second sliding groove 310 respectively and compress the first spring 3112 and the second spring 3122 respectively, prompting the first spring 3112 and the second spring 3122 to exert a pushing force towards the material outer wall on the first sliding column 3111 and the second sliding column 3121, so that the material outer wall front and rear sides are fixed by the abutment pressure of the first sliding column 3111 and the second sliding column 3122, and the smaller the distance between the first support 33 and the second support 37, the greater the clamping force, while the first sliding column 3111 and the second sliding column 3121 on the upper and lower sides of the material being clamped do not abut the front and rear sides of the material, causing the first sliding column 3111 and the second sliding column 3121 to extend into the first limiting groove 36 and the second limiting groove 39 respectively, and the side wall of the first sliding column 3111 and the side wall of the second sliding column 3121 abut the upper and lower sides of the material, thereby limiting the material, reducing the probability of damage to the material under the premise of stable clamping.
[0029] As shown in Figure 2 and Figure 3 , each first sliding column 3111 rear end and second sliding column 3121 front end is fixedly provided with an elastic anti-skid piece 4.
[0030] In use, the anti-skid piece 4 abuts and fits with the material side wall, and can adapt to the surfaces of materials of different shapes due to its flexible characteristics, and forms friction with the material, further improving the clamping stability.
[0031] As shown in Figure 1 , the first sliding rail 2 is rotatably provided with a second spacing adjusting screw 5 for adjusting the distance between the two clamping assemblies 3, the second adjusting screw penetrates the two bases 31 in the left-right direction, the second spacing adjusting screw 5 is threadedly connected with the two bases 31, and the thread directions of the two bases 31 and the second spacing adjusting screw 5 are opposite.
[0032] In use, by rotating the second spacing adjusting screw 5, the left base 31 and the right base 31 are respectively moved along their respective thread directions, and since the thread directions are opposite, the moving directions of the left and right bases 31 are mutually approaching or mutually moving away, so that by rotating the second spacing adjusting screw 5, the distance between the two clamping assemblies 5 can be changed.
[0033] As shown in Figure 1 andFigure 2 As shown, the rear end of the first spacing adjusting screw 313 extends out of the rear side of the second sliding rail 32, and the rear end of the first spacing adjusting screw 313 is fixedly provided with a first rotating handle 6. The left end of the second spacing adjusting screw 5 extends out of the left side of the first sliding rail 2, and the left end of the second spacing adjusting screw 5 is fixedly provided with a second rotating handle 7.
[0034] When the product is used, the operator holds the first rotating handle 6 and rotates the first rotating handle 6 to drive the first spacing adjusting screw 313 to rotate, thereby adjusting the spacing between the first support 33 and the second support 37. The operator holds the second rotating handle 7 to drive the second spacing adjusting screw 5 to rotate, thereby adjusting the spacing between the left base 31 and the right base 31, so as to adapt to the clamping of materials of different lengths.
[0035] The working principle of the device is as follows:
[0036] First step: place one end of the material to be clamped horizontally in the clamping assembly 3 on one side, and rotate the first rotating handle 6 to drive the first spacing adjusting screw 313 to rotate, thereby causing the first support 33 and the second support 37 to slide towards the center line of the second sliding rail 32, so that the spacing between the first clamping plate 34 and the second clamping plate 38 is reduced, thereby causing the material placed between the first clamping plate 34 and the second clamping plate 38 to be clamped by the compression force of the first fixed subassembly 311 and the second fixed subassembly 312 on the front and rear sides.
[0037] Second step: during the approach of the first clamping plate 34 and the second clamping plate 38, the rear end of the first sliding column 3111 abuts against the front side of the outer wall of the material and continuously slides forward relative to the first sliding groove 35, thereby compressing the first spring 3112. The front end of the second sliding column 3121 abuts against the rear side of the outer wall of the material and continuously slides backward relative to the second sliding groove 310, thereby compressing the second spring 3122. The first spring 3112 exerts a pushing force on the first sliding column 3111, and the second spring 3122 exerts a pushing force on the second sliding column 3121, thereby causing the end of the first sliding column 3111 and the end of the second sliding column 3121 to exert an abutting compression force on the material. At the same time, the anti-slip member 4 of the end head is attached to the surface of the material and forms a friction force with the material, thereby limiting the forward and backward movement of the material and achieving the fixing effect.
[0038] Third step: since each of the first sliding column 3111 end and the second sliding column 3121 end on the upper and lower sides of the material does not abut against the side wall of the material, the rear end of the first sliding column 3111 extends into the corresponding second limiting groove 39 and the side wall abuts against the upper and lower sides of the material, and the front end of the second sliding column 3121 extends into the corresponding first limiting groove 36 and the side wall abuts against the upper and lower sides of the material, thereby limiting the upward and downward movement of the material and further fixing the position of the material.
[0039] Fourth step: then rotate the second rotating handle 7, drive the second distance adjusting screw 5 to rotate, thereby drive the two side bases 31 to slide to the first sliding rail center line direction, adjust the distance between the two side clamping assemblies 3 to the end of the material not clamped in the other clamping assembly 3, then stop rotating the second rotating handle 7.
[0040] Fifth step: repeat the first to third steps to the other side clamping assembly 3, thereby fix the two ends of the material, make the material horizontally placed on the base, and the operator carries out the experiment operation.
[0041] Sixth step: after the experiment is completed, rotate the left and right first rotating handles 6 in sequence, drive the first support 33 and the second support 37 in the two side clamping assemblies 3 to move away from each other, thereby make the two ends of the material escape from the clamping of the clamping assembly 3, then take down the material, complete the use.
[0042] The above merely describes the specific implementation of the present application, and does not limit the patent range of the present application, any equivalent structural transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. An individualized bone prosthesis clamping device, characterized by: The utility model relates to a kind of clamping device, including base (1), first sliding rail (2) being fixed on base (1) and being arranged along left and right direction and a pair of respectively movably arranged in sliding rail clamping component (3); Each clamping component (3) includes base (31) embedded in sliding rail and sliding left and right, second sliding rail (32) being fixed on base (31) and being arranged along front and back direction, first support (33) movably arranged in front of second sliding rail (32), first clamping plate (34) being fixed on first support (33), first sliding groove (35) being arranged on the rear side of first clamping plate (34) at intervals, first limiting groove (36) being arranged between each sliding groove, second support (37) movably arranged in rear of second sliding rail (32), second clamping plate (38) being fixed on second support (37), second sliding groove (310) being arranged on the front side of second clamping plate (38) corresponding to each first limiting groove (36), second limiting groove (39) being arranged on the front side of second clamping plate (38) corresponding to each first sliding groove (35), first fixed subassembly (311) movably arranged in each first sliding groove (35) and used for fixing clamping object, second fixed subassembly (312) movably arranged in each second sliding groove (310) and used for fixing clamping object, and first spacing adjustment screw (313) being rotatably arranged on second sliding rail (32) and used for adjusting the distance between first support (33) and second support (37); The first fixed subassembly (311) includes first sliding column (3111) movably arranged in first sliding groove (35) along front and back direction, and first spring (3112) being fixed between the front end of first sliding column (3111) and the front side of first sliding groove (35) and used for making the rear end of first sliding column (3111) movably protrude from the rear side of first clamping plate (34); The second fixed subassembly (312) includes second sliding column (3121) movably arranged in second sliding groove (310) along front and back direction, and second spring (3122) being fixed between the rear end of second sliding column (3121) and the rear side of first sliding groove (35) and used for making the front end of second sliding column (3121) movably protrude from the front side of second clamping plate (38); The first spacing adjustment screw (313) is arranged along front and back direction through first support (33) and second support (37), and the first spacing adjustment screw (313) is threadedly connected with first support (33) and second support (37) respectively, and the screw thread direction of threadedly connecting first support (33) and second support (37) is opposite.
2. The personalized bone prosthesis clamping device according to claim 1, characterized in that: The rear end of each first sliding column (3111) and the front end of second sliding column (3121) are fixed with elastic antiskid member (4).
3. The personalized bone prosthesis clamping device according to claim 1, wherein: The first sliding rail (2) is provided with a second spacing adjusting screw (5) for adjusting the spacing between the two clamping assemblies (3) and rotating in the first sliding rail (2), the second spacing adjusting screw (5) penetrates the two bases (31) in the left-right direction, the second spacing adjusting screw (5) is threadedly connected with the two bases (31), and the thread directions of the two bases (31) and the second spacing adjusting screw (5) are opposite.
4. The personalized bone prosthesis clamping device according to claim 3, characterized in that: The rear end of the first spacing adjusting screw (313) extends out of the rear side of the second sliding rail (32) and is fixedly provided with a first rotating handle (6); the left end of the second spacing adjusting screw (5) extends out of the left side of the first sliding rail (2) and is fixedly provided with a second rotating handle (7).