CN221578277U

CN221578277U - Clamping device for polishing allograft bone

Info

Publication number: CN221578277U
Application number: CN202323217230.7U
Authority: CN
Inventors: 杜小青; 张军; 柳有财
Original assignee: Hubei Lianjie Biomaterials Co ltd
Current assignee: Hubei Lianjie Biomaterials Co ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-08-23
Anticipated expiration: 2033-11-24

Abstract

The utility model relates to a clamping device for polishing allograft bones, which comprises a base plate, two supports and two clamps, wherein each support is arranged on the base plate, the two supports are oppositely arranged, and a rotatable center shaft is arranged on each support; the clamps are in one-to-one correspondence with the supports, the two clamps are symmetrically arranged, and the clamps are arranged at one end of the center shaft. According to the utility model, the two clamps can perform rotary motion, so that multidirectional polishing can be performed, and the allogenic bone does not need to be repeatedly disassembled and assembled to adjust the polishing surface, so that the polishing efficiency can be provided.

Description

Clamping device for polishing allograft bone

Technical Field

The utility model relates to the technical field of medical material processing, in particular to a clamping device for polishing allogeneic bones.

Background

Allogenic bone is widely applied in the orthopaedics field, and is generally divided into structural bone grafting and filling bone grafting, and the existing allogenic bone needs to be firstly coarsely polished before being used and then finely polished so as to ensure that the appearance and the size of the bone can be perfectly matched with a patient.

In the related art, in the process of polishing the allograft bone, the present clamping device generally uses two clamping plates that move relatively to clamp the allograft bone, so as to finish polishing the allograft bone.

In the prior art, the clamping device cannot rotate, so that the polishing surface of the allograft bone cannot be changed; the allograft bone needs to be repeatedly disassembled and assembled when the polishing surface is changed each time, so that the polishing process is extremely complicated, and the polishing efficiency is difficult to ensure.

Disclosure of utility model

Based on the above description, the utility model provides a clamping device for polishing allograft bones, which aims to solve the problem that the conventional clamping device needs to repeatedly disassemble and assemble the allograft bones when the polishing surface is changed.

The technical scheme for solving the technical problems is as follows:

a clamping device for allograft bone grinding comprising:

A substrate;

The two supports are arranged on the substrate, the two supports are arranged oppositely, and each support is provided with a rotatable center shaft;

The two clamps are in one-to-one correspondence with the supporting seats, are symmetrically arranged, and are arranged at one end of the center shaft.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, at least two first sliding protrusions are arranged on the base plate, and a first chute which is in sliding fit with each first sliding protrusion is arranged on the support.

Further, the fixture comprises a shell, sliding blocks and an adjusting plate, wherein the shell, the sliding blocks and the adjusting plate are sequentially arranged along the axial direction of the central shaft, the number of the sliding blocks is at least two, one side, close to the shell, of each sliding block is provided with a second sliding groove, second sliding protrusions which are in sliding fit with the second sliding grooves are arranged in the shell, each adjusting plate is provided with a limiting through hole corresponding to the position of each sliding block, the limiting through holes form clockwise or anticlockwise rotation directions, each limiting through hole is internally provided with a limiting part, and the limiting parts are fixed with the sliding blocks.

Further, an opening extending along the axial direction of the shell is formed in the shell, and a holding part is arranged at the position of the opening of the adjusting plate.

Further, the motor comprises a first motor, wherein the output end of the first motor is fixed with the other end of one of the center shafts.

Further, the device comprises a driving assembly, two symmetrically arranged long holes are formed in the base plate, the long holes correspond to the supports one by one, a limiting block is arranged on one side, close to the base plate, of each support, and the driving assembly is connected with the limiting block.

Further, the driving assembly comprises a second motor, a two-way screw rod and nut seats, one end of the two-way screw rod is fixed with the output end of the second motor, the nut seats are in threaded connection with the two-way screw rod, the number of the nut seats is the same as that of the limiting blocks, and the nut seats are in one-to-one correspondence with the limiting blocks.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

(1) According to the application, the two clamps can perform rotary motion, so that multidirectional polishing can be performed, and the allogenic bone does not need to be repeatedly disassembled and assembled to adjust the polishing surface, so that the polishing efficiency can be provided.

(2) According to the application, the limiting through hole applies an acting force to the limiting part by rotating the adjusting plate, and the limiting part drives the sliding block to slide along the length direction of the second sliding bulge through the second sliding groove, so that the clamping or loosening of the allograft bone is realized, and the allograft bone is more convenient to assemble and disassemble.

(3) According to the application, the second motor drives the bidirectional screw rod to rotate, and the nut seat is used for transmitting to the limiting block and the support, so that synchronous movement of the two supports is realized, adjustment can be performed according to the specification of the allogeneic bone, and the displacement precision of the two supports can be ensured.

Drawings

Fig. 1 is a general assembly view of an allograft bone grinding clamping device in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic view of a support structure according to an embodiment of the present utility model;

FIG. 3 is an assembly schematic of a clamp according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a clamp in an embodiment of the utility model;

fig. 5 is a schematic structural diagram of a driving assembly according to an embodiment of the utility model.

In the drawings, the list of components represented by the various numbers is as follows:

10. A substrate; 11. a first sliding protrusion; 12. a long hole; 20. a support; 21. a center shaft; 22. a first chute; 23. a limiting block; 30. a clamp; 31. a housing; 311. a second sliding protrusion; 312. an opening; 32. a slide block; 321. a second chute; 33. an adjusting plate; 331. limiting through holes; 332. a limit part; 333. a grip portion; 40. a first motor; 50. a drive assembly; 51. a second motor; 52. a two-way screw rod; 53. and a nut seat.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

Referring to the accompanying drawings 1-5, the utility model provides a technical scheme that: the clamping device for polishing the allograft bone comprises a base plate 10, two supports 20 and two clamps 30, wherein each support 20 is arranged on the base plate 10, the two supports 20 are oppositely arranged, and a rotatable center shaft 21 is arranged on each support 20; the clamps 30 are in one-to-one correspondence with the supports 20, the two clamps 30 are symmetrically arranged, and the clamps 30 are arranged at one end of the center shaft 21.

According to the embodiment, during the process of polishing the allograft bone, the center shaft 21 rotates in the support 20 to drive the clamp 30 to rotate so as to realize rotary polishing. Compared with the prior art, the application enables the two clamps 30 to rotate, so that multidirectional polishing can be performed without repeatedly disassembling and assembling the allograft bone to adjust the polishing surface, thereby providing polishing efficiency.

Referring to fig. 1-2, in some embodiments, at least two first sliding protrusions 11 are provided on the base plate 10, and a first sliding groove 22 slidably engaged with each first sliding protrusion 11 is provided on the support 20.

According to this embodiment, the holders 20 are slidable along the length direction of the first sliding protrusions 11 through the first sliding grooves 22, so that the two holders 20 are adjusted according to the specifications of the allograft bone, thereby improving the adaptability of the clamping device.

Referring to fig. 1 and 3 to 4, in some embodiments, the fixture 30 includes a housing 31, two sliding blocks 32 and an adjusting plate 33 sequentially disposed along an axial direction of the central shaft 21, at least two sliding blocks 32 are disposed on a side, close to the housing 31, of each sliding block 32, a second sliding groove 321 is disposed in the housing 31, a second sliding protrusion 311 is slidably engaged with each second sliding groove 321, a limiting through hole 331 corresponding to a position of each sliding block 32 is disposed on the adjusting plate 33, and the plurality of limiting through holes 331 form clockwise or anticlockwise rotation directions, and each limiting through hole 331 is provided with a limiting portion 332, where the limiting portion 332 is fixed with the sliding block 32.

Illustratively, when there are two sliders 32, the two sliders 32 are symmetrically arranged in the radial direction of the housing 31; when the number of the sliders 32 is three or more, the three or more sliders 32 are arranged at uniform intervals in the axial direction of the housing 31. The limiting portion 332 may be a latch, a limiting rod, a limiting bolt, or the like.

According to the embodiment, the adjusting plate 33 is rotated, so that the limiting through hole 331 applies an acting force to the limiting portion 332, and the limiting portion 332 drives the sliding block 32 to slide along the length direction of the second sliding protrusion 311 through the second sliding groove 321, so as to clamp or loosen the allograft bone, thereby facilitating the disassembly and assembly of the allograft bone.

Referring to fig. 1 and 3 to 4, in some embodiments, the housing 31 is provided with an opening 312 extending in an axial direction thereof, and the adjusting plate 33 is provided with a grip 333 at a position of the opening 312.

Illustratively, the grip 333 may be a plate-like structure, a rod-like structure, or the like.

According to this embodiment, this is arranged so that the operator applies a force to the adjustment plate 33.

Referring to fig. 1, in some embodiments, a first motor 40 is included, with the output end of the first motor 40 being fixed to the other end of one of the central shafts 21.

According to this embodiment, by doing so, the rotation of the jig 30 is not required to be manually operated, so that on the one hand, the safety of the worker can be ensured, and on the other hand, the labor intensity of the worker can be reduced, and the work efficiency can be improved.

Referring to fig. 1, in some embodiments, the driving assembly 50 is included, two slots 12 are symmetrically arranged on the base plate 10, the slots 12 are in one-to-one correspondence with the supports 20, a limiting block 23 is arranged on one side, close to the base plate 10, of each support 20, and the driving assembly 50 is connected with the limiting block 23.

By way of example, the drive assembly 50 may be a pneumatic cylinder, hydraulic cylinder, electric push rod, electric cylinder, or the like; wherein each drive assembly 50 corresponds to one of the stoppers 23.

According to this embodiment, the two supports 20 can move toward and away from each other under the action of the kinetic energy provided by the driving assembly 50, so that the labor intensity of the worker can be reduced and the working efficiency can be improved.

Referring to fig. 1 and 5, in some embodiments, the driving assembly 50 includes a second motor 51, a bidirectional screw rod 52, and a nut seat 53, one end of the bidirectional screw rod 52 is fixed to an output end of the second motor 51, the nut seat 53 is screw-coupled with the bidirectional screw rod 52, the number of the nut seats 53 is the same as that of the stoppers 23, and the nut seats 53 are in one-to-one correspondence with the stoppers 23.

Illustratively, two threaded segments of the bi-directional screw 52 of different handedness each correspond to one nut seat 53.

According to this embodiment, the second motor 51 drives the bi-directional screw rod 52 to rotate, and the nut seat 53 is used to drive the stopper 23 and the support 20, so that the two supports 20 move synchronously, so as to ensure the displacement accuracy of the two supports 20.

Specifically, the working principle of the clamping device for polishing the allograft bone is as follows: the second motor 51 drives the bidirectional screw rod 52 to rotate, and drives the limiting block 23 and the supports 20 through the nut seat 53, and the two supports 20 move along the first sliding protrusion 11 in opposite directions through the first sliding groove 22, so that two ends of the allograft bone are respectively located between the plurality of sliding blocks 32 of the corresponding clamp 30. Through the rotation of the holding portion 333, the adjusting plate 33 is rotated, so that the limiting through hole 331 applies an acting force to the limiting portion 332, the limiting portion 332 drives the sliding blocks 32 to slide along the length direction of the second sliding protrusion 311 through the second sliding groove 321, and the sliding blocks 32 are in a gathering state to clamp the allograft bone. During polishing, the first motor 40 drives the center shaft 21 to drive the clamp 30 connected with the center shaft to rotate, and the other clamp 30 rotates along with the allogeneic bone, so that the polishing surface of the allogeneic bone can be continuously adjusted.

The first motor 40 and the second motor 51 may be a gear motor, a servo motor, a stepping motor, or the like.

It should be noted that, the model specifications of the first motor 40 and the second motor 51 need to be determined according to the actual specifications of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the first motor 40 and the second motor 51 and the principle thereof will be clear to a person skilled in the art and will not be described in detail here.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims

1. A clamping device for grinding allograft bone, comprising:

A substrate (10);

the two supports (20) are arranged on the base plate (10), the two supports (20) are oppositely arranged, and a rotatable center shaft (21) is arranged on each support (20);

The two clamps (30), the clamps (30) are in one-to-one correspondence with the support (20), the two clamps (30) are symmetrically arranged, and the clamps (30) are arranged at one end of the center shaft (21).

2. Clamping device for grinding of allograft bone according to claim 1 characterized in that the base plate (10) is provided with at least two first sliding projections (11) and the support (20) is provided with a first runner (22) in sliding engagement with each of the first sliding projections (11).

3. Clamping device for grinding allograft bone according to claim 1, characterized in that the clamp (30) comprises a shell (31), a sliding block (32) and an adjusting plate (33) which are sequentially arranged along the axial direction of the central shaft (21), the number of the sliding blocks (32) is at least two, one side, close to the shell (31), of each sliding block (32) is provided with a second sliding groove (321), the interior of the shell (31) is provided with a second sliding protrusion (311) which is in sliding fit with each second sliding groove (321), the adjusting plate (33) is provided with a limiting through hole (331) corresponding to the position of each sliding block (32), the limiting through holes (331) form clockwise or anticlockwise rotation directions, each limiting through hole (331) is internally provided with a limiting part (332), and the limiting parts (332) are fixed with the sliding blocks (32).

4. A clamping device for grinding of allograft bone according to claim 3, characterized in that the housing (31) is provided with an opening (312) extending in its axial direction, and that the adjusting plate (33) is provided with a grip (333) at the location of the opening (312).

5. Clamping device for grinding of allograft bone according to claim 1 characterized in that it comprises a first motor (40), the output end of which first motor (40) is fixed to the other end of one of the central shafts (21).

6. Clamping device for grinding of allograft bone according to any of the claims 1-5 characterized in that it comprises a driving assembly (50), two symmetrically arranged long holes (12) are arranged on the base plate (10), the long holes (12) are in one-to-one correspondence with the supports (20), a limiting block (23) is arranged on one side of each support (20) close to the base plate (10), and the driving assembly (50) is connected with the limiting block (23).

7. The clamping device for grinding of allogeneic bone according to claim 6, characterized in that the driving assembly (50) comprises a second motor (51), a bidirectional screw rod (52) and a nut seat (53), one end of the bidirectional screw rod (52) is fixed with the output end of the second motor (51), the nut seat (53) is in threaded connection with the bidirectional screw rod (52), the number of the nut seats (53) is the same as the number of the limiting blocks (23), and the nut seats (53) are in one-to-one correspondence with the limiting blocks (23).