A grinding fixture for unicompartment femoral components

Abstract

This utility model provides a grinding fixture for unicompartment femoral components of a femoral prosthesis, belonging to the field of medical device technology. The grinding fixture includes a main body, a first clamping assembly, and a second clamping assembly. The main body has a processing station suitable for installing the unicompartment femoral prosthesis. The processing station has a first positioning part with a mounting hole and a second positioning part. The first clamping assembly includes a locking sleeve and a locking nut. The locking sleeve passes through the mounting hole and is suitable for the insertion of a first fixation post. The second clamping assembly is located on the second positioning part and has a positioning hole suitable for the insertion of a second fixation post. This grinding fixture for unicompartment femoral components of a femoral prosthesis, provided by this utility model, clamps the first and second fixation posts respectively, increasing the stability of the fixation.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a grinding tool for a unicompartment femoral component of a femoral prosthesis. Background Technology

[0002] Unicompartmental knee arthroplasty is a special type of knee replacement surgery that preserves most of the structures within the knee joint and replaces only the cartilage on the joint surface. It has advantages such as minimal trauma, fewer complications, and faster recovery of joint function after surgery. Patients experience better postoperative function than with total knee replacement.

[0003] Unicompartmental femoral prostheses are classified into unicompartmental femoral prostheses and unicompartmental tibial prostheses based on their placement location. The surface of a unicompartmental femoral prosthesis is irregularly shaped, composed of several curved surfaces with varying curvatures. The finished unicompartmental femoral prosthesis undergoes a series of grinding and polishing processes to achieve a smooth, uniform, and high-quality surface. The surface quality and smoothness of the unicompartmental femoral prosthesis directly affect its function and lifespan. Substandard quality unicompartmental femoral prostheses may lead to complications, surgical failure, and the need for revision surgery.

[0004] The unicompartmental femoral prosthesis includes a prosthesis main plate, a first fixation post, and a second fixation post. The prosthesis main plate is an arc-shaped plate. The first fixation post and the second fixation post are sequentially arranged on the inner side of the prosthesis main plate and are respectively located near both ends of the prosthesis main plate.

[0005] The material used in unicompartmental femoral prostheses has high hardness and is difficult to machine. When grinding the outer surface of the unicompartmental femoral prosthesis, the existing clamping fixtures have a complicated clamping process and poor clamping stability. During the grinding process, under the action of cutting force, the unicompartmental femoral prosthesis will shift in position between itself and the clamping and fixing device, which will affect the grinding accuracy and fail to meet the grinding accuracy requirements, resulting in poor surface quality of the unicompartmental femoral prosthesis. Utility Model Content

[0006] The purpose of this invention is to provide a grinding fixture for unicompartment femoral components, which aims to solve the problem that the force is easily shifted during the grinding process of unicompartment femoral prosthesis, resulting in poor surface quality of the unicompartment femoral prosthesis.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a grinding machine tool for a unicompartment femoral component of a femoral prosthesis is provided, comprising: a tool body, which is cylindrical, a processing station provided on the tool body, the processing station being suitable for the installation of a unicompartment femoral prosthesis, a first positioning part provided on the front side of the upper end of the processing station, the first positioning part being provided with a mounting hole, and a second positioning part provided on the rear side of the upper end of the processing station;

[0008] A first clamping assembly for clamping the first fixation post of a unicompartmental femoral prosthesis includes a locking sleeve and a locking nut. The locking sleeve passes through the mounting hole and is adapted for insertion of the first fixation post. The locking sleeve includes a tightening portion and a threaded portion arranged from top to bottom. The tightening portion includes multiple sets of circumferentially arranged tightening claws, the diameter of the circle containing the upper end of each tightening claw is larger than the diameter of the circle containing its lower end. The inner diameter of the mounting hole varies to match the tightening claws. The locking sleeve has a degree of freedom of movement along its length within the mounting hole. The locking nut matches the threaded portion and is located below the first positioning portion. The locking nut is used to adjust the height of the locking sleeve within the mounting hole.

[0009] The second clamping assembly, used to clamp the second fixation post of the unicompartment femoral prosthesis, is disposed on the second positioning part. The second clamping assembly is provided with a positioning hole, which is suitable for the insertion of the second fixation post.

[0010] In one possible implementation, a limiting portion is provided between the tightening portion and the threaded portion, the sidewall of the limiting portion is provided with a first limiting surface, the lower end of the mounting hole is provided with a limiting hole, the sidewall of the limiting hole is provided with a second limiting surface, and the second limiting surface matches the first limiting surface.

[0011] In one possible implementation, the first clamping assembly further includes a first support member, the first support member comprising:

[0012] A first support block, disposed on the upper end face of the first positioning part, is used to support the edge of the prosthesis main plate of the unicompartment femoral prosthesis; and

[0013] The first support bolt passes through the first support block and fixes the first support block to the first positioning part;

[0014] Two sets of the first support members are symmetrically arranged on the left and right sides of the locking sleeve, and the prosthesis motherboard is mounted on the two sets of the first support blocks.

[0015] In one possible implementation, a first limiting member is further included, the first limiting member comprising:

[0016] A first limiting plate, disposed on the front sidewall of the first positioning part, is used to support the front end of the prosthesis motherboard; and

[0017] The first limiting bolt passes through the first limiting plate and fixes the first limiting plate to the first positioning part.

[0018] In one possible implementation, the upper end face of the second positioning part is provided with an upper positioning groove, and the second clamping assembly is disposed in the upper positioning groove. The second clamping assembly includes:

[0019] A second clamping plate is disposed on the bottom of the upper positioning groove, and the positioning hole is disposed on the second clamping plate; and

[0020] The second clamping bolt passes through the second clamping plate and fixes the second clamping plate onto the upper positioning groove.

[0021] In one possible implementation, a second limiting member is also included, the second limiting member comprising:

[0022] The second limiting block is disposed on the rear side wall of the second positioning part and is used to support the rear end of the prosthetic motherboard; and

[0023] The second limiting bolt passes through the second limiting block and fixes the second limiting block on the second positioning part. A buffer disc spring is sleeved on the outside of the second limiting bolt.

[0024] In one possible implementation, the lower end face of the second positioning part is provided with a lower positioning groove, the second limiting member is disposed in the lower positioning groove, the upper end of the second limiting member is located outside the lower positioning groove, and the upper end of the second limiting member is used to support the rear end of the prosthetic motherboard.

[0025] In one possible implementation, mounting columns are provided at both ends of the tooling body.

[0026] In one possible implementation, the first clamping assembly and the second clamping assembly are detachable and replaceable.

[0027] In one possible implementation, multiple sets of the processing stations are arranged along the length of the tooling body.

[0028] The beneficial effects of the grinding machine tooling for unicompartment femoral prosthesis provided by this utility model are as follows: Compared with the prior art,

[0029] The tooling body is equipped with a processing station. The unicompartmental femoral prosthesis to be processed is installed on the processing station, and the outer surface of the prosthesis main body of the unicompartmental femoral prosthesis is processed.

[0030] The first positioning part set on the processing station is used to support and clamp the first fixing column, and the second positioning part set on the processing station is used to support and clamp the second fixing column. The unicompartmental femoral prosthesis is covered on the outside of the first positioning part and the second positioning part.

[0031] The first clamping assembly is disposed on the first positioning part and is used to clamp the first fixation post of the unicompartment femoral prosthesis. The locking sleeve is inserted into the mounting hole on the first positioning part, the first fixation post is inserted into the locking sleeve, and the locking sleeve locks the first fixation post.

[0032] The tightening part of the locking sleeve is located at the upper end of its threaded part. The outer diameter of the tightening part gradually decreases from top to bottom. The tightening part includes multiple sets of circumferentially arranged tightening claws with gaps between them. The change in the inner diameter of the upper end of the mounting hole matches the tightening part.

[0033] After inserting the first fixing post into the locking sleeve, rotate the locking nut. Under the action of the thread, the locking sleeve moves downward. Under the action of the side wall of the mounting hole, the diameter of the tightening part gradually decreases, locking the first fixing post in the locking sleeve.

[0034] The second clamping assembly is provided with a positioning hole, and the second fixing post is inserted into the positioning hole to lock the second fixing post.

[0035] Simultaneously locking the first and second fixation posts of the unicompartmental femoral prosthesis, achieving two-point fixation, effectively improves the fixation stability of the unicompartmental femoral prosthesis, is simple and convenient to operate, and improves the grinding precision of the unicompartmental femoral prosthesis. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A three-dimensional structural diagram of the grinding fixture for the femoral component of the unicompartment femoral prosthesis provided in this embodiment of the utility model. Figure 1 ;

[0038] Figure 2 A three-dimensional structural diagram of the grinding fixture for the femoral component of the unicompartment femoral prosthesis provided in this embodiment of the utility model. Figure 2 ;

[0039] Figure 3 A partially exploded view of the grinding fixture for the femoral component of the unicompartment femoral prosthesis provided in this embodiment of the utility model. Figure 1 ;

[0040] Figure 4 A partially exploded view of the grinding fixture for the femoral component of the unicompartment femoral prosthesis provided in this embodiment of the utility model. Figure 2 ;

[0041] Figure 5 A partially exploded view of the grinding fixture for the femoral component of the unicompartment femoral prosthesis provided in this embodiment of the utility model. Figure 3 ;

[0042] Figure 6 This is a vertical cross-sectional view of the tooling body used in the embodiment of this utility model.

[0043] Figure 7 This is a three-dimensional structural diagram of the unicompartmental femoral prosthesis used in the embodiments of this utility model.

[0044] In the diagram: 1100, unicompartmental femoral prosthesis; 1101, prosthesis main body; 1102, first fixation post; 1103, second fixation post; 1104, first osteotomy surface; 1105, second osteotomy surface; 1106, third osteotomy surface; 2100, tooling body; 2101, machining station; 2102, first positioning part; 2103, second positioning part; 2104, left mounting post; 2105, mounting positioning surface; 2106, right mounting post; 2107, mounting hole; 2108, limiting hole; 2109, second limiting surface; 2110, upper positioning groove; 2111, lower positioning groove; 3100 3101 Locking sleeve; 3102 Tightening claw; 3103 Connecting piece; 3104 Limiting part; 3105 First limiting surface; 3106 Threaded part; 3200 Locking nut; 3301 First support block; 3302 First support pad; 3303 First support bolt; 3401 First limiting plate; 3402 First limiting bolt; 4101 Second clamping plate; 4102 Positioning hole; 4103 Second clamping bolt; 4104 Guide surface; 4201 Second fixing block; 4202 Second support block; 4203 Second limiting bolt; 4204 Buffer disc spring. Detailed Implementation

[0045] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0046] In the existing technology, please refer to Figure 7The unicompartmental femoral prosthesis 1100 includes a prosthesis main plate 1101, a first fixation post 1102, and a second fixation post 1103. The outer surface of the prosthesis main plate 1101 is arc-shaped, and the inner surface of the prosthesis main plate 1101 is formed by three planes connected end to end. These three planes are, from front to back, a first osteotomy surface 1104, a second osteotomy surface 1105, and a third osteotomy surface 1106. The first fixation post 1102 is disposed on the second osteotomy surface 1105, and the second fixation post 1103 is disposed near the rear end of the third osteotomy surface 1106.

[0047] Please refer to Figures 1 to 7 The tooling body 2100 is cylindrical. For ease of description, the length direction of the tooling body 2100 is defined as the left-right direction, the front end of the prosthetic motherboard 1101 is defined as the front side, and the rear end of the prosthetic motherboard 1101 is defined as the rear side.

[0048] The processing station 2101 is located on the outer side wall of the tooling body 2100. The processing station 2101 is suitable for the installation of the unicompartment prosthesis. The first positioning part 2102 is located on the front side of the upper end of the processing station 2101 and is used to lock the first fixing post 1102. The second positioning part 2103 is located on the rear side of the upper end of the processing station 2101 and is used to lock the second fixing post 1103. The unicompartment prosthesis is covered on the outside of the first positioning part 2102 and the second positioning part 2103.

[0049] The first positioning part 2102 is used to support and fix the front end of the unicompartmental prosthesis, and the second positioning part 2103 is used to support and fix the rear end of the unicompartmental prosthesis. The upper end face of the tooling body 2100 located between the first positioning part 2102 and the second positioning part 2103 fits the shape of the inner side wall of the prosthesis main body 1101, thereby increasing the stability of the unicompartmental prosthesis installation.

[0050] The first clamping assembly is used to clamp the first fixing post 1102 of the unicompartmental prosthesis. The first clamping assembly includes a locking sleeve 3100 and a locking nut 3200.

[0051] The locking sleeve 3100 includes a tightening part and a threaded part 3105. A connecting part may also be provided between the tightening part and the threaded part 3105. The tightening part includes multiple sets of tightening claws 3101, which are evenly distributed circumferentially and have gaps between adjacent tightening claws 3101. The connecting part includes multiple sets of connecting pieces 3102, which are circumferentially distributed on the upper end of the threaded part 3105. The connecting pieces 3102 connect the tightening claws 3101 and the threaded part 3105 and have gaps between adjacent connecting pieces 3102.

[0052] The tightening claw 3101 is arranged in a funnel shape, and the outer diameter of the circle in which the tightening claw 3101 is located gradually increases from bottom to top.

[0053] Mounting hole 2107 is provided on the first positioning part 2102, and extends through the upper and lower end faces of the first positioning part 2102. The mounting hole 2107 is aligned with the direction of the first fixing post 1102.

[0054] The inner wall of the upper end of the mounting hole 2107 has the same inclination angle as the outer wall of the tightening claw 3101. The locking sleeve 3100 passes through the mounting hole 2107 and has the freedom to move along its length. The mounting hole 2107 can change the outer diameter of the tightening part.

[0055] The lower threaded portion 3105 of the locking sleeve 3100 passes through the mounting hole 2107. A washer and a locking nut 3200 are fitted on the lower end of the threaded portion 3105. The washer abuts against the lower bottom surface of the first positioning portion 2102. The locking nut 3200 is located below the washer. Rotating the locking nut 3200 changes the vertical displacement of the locking sleeve 3100.

[0056] The second clamping assembly is disposed on the second positioning part 2103 and is used to clamp the second fixing post 1103 of the unicompartmental prosthesis. The second clamping assembly is provided with a positioning hole 4102, which is suitable for the insertion of the second fixing post 1103.

[0057] When installing a unicompartmental prosthesis, the first fixing post 1102 is inserted into the locking sleeve 3100, and the second fixing post 1103 is inserted into the positioning hole 4102. By rotating the locking nut 3200, the locking sleeve 3100 moves downward. Under the action of the mounting hole 2107, the outer diameter of the tightening part is reduced, locking the first fixing post 1102, improving the stability of the unicompartmental prosthesis fixation, and facilitating the processing of the unicompartmental prosthesis.

[0058] Please refer to Figures 1 to 7 The limiting part 3103 is disposed between the tightening part and the threaded part 3105. Furthermore, the limiting part 3103 is disposed at the lower end of the connecting part and at the upper end of the threaded part 3105. The limiting part 3103 is used to limit the rotation of the locking sleeve 3100.

[0059] A first limiting surface 3104 is provided on the circumferential side wall of the limiting part 3103. Two sets of the first limiting surface 3104 are provided and symmetrically arranged on the front and rear sides of the limiting part 3103.

[0060] The limiting hole 2108 is located at the lower end of the mounting hole 2107, and the inner side wall of the limiting hole 2108 is provided with a second limiting surface 2109, which matches the first limiting surface 3104.

[0061] After the locking sleeve 3100 is installed in the mounting hole 2107, the limiting part 3103 is located in the limiting hole 2108, the first limiting surface 3104 and the second limiting surface 2109 are in contact. The locking sleeve 3100 has the freedom of movement in its length direction, but not the freedom of rotation. By rotating the locking nut 3200, the displacement of the locking sleeve 3100 in its length direction can be adjusted.

[0062] Please refer to Figures 1 to 7 The first support member is located on the upper end face of the first positioning part 2102 and is used to support the edge of the prosthesis main body 1101 of the unicompartment prosthesis. There are two sets of the first support members, which are symmetrically arranged on the left and right sides of the locking sleeve 3100. The edges of the prosthesis main body 1101 on both sides of the first fixing post 1102 respectively abut against the two sets of first support members.

[0063] The first support member includes a first support block 3301 and a first support bolt 3303. The first support block 3301 is disposed on the upper end face of the first positioning part 2102. A first support pad 3302 is disposed on the upper end face of the first support block 3301. The first support pad 3302 is disposed on the side of the first support block 3301 near the locking sleeve 3100. The two sets of first support pads 3302 cooperate to support the edges on both sides of the prosthetic main board 1101 respectively.

[0064] The shape of the upper surface of the first support pad 3302 is in harmony with the shape of the edge of the second osteotomy surface 1105 of the support prosthesis main plate 1101.

[0065] The first support bolt 3303 passes through the first support block 3301 and enters the first positioning part 2102. The first support bolt 3303 fixes the first support block 3301 on the first positioning part 2102. The first support bolt 3303 is located on the side of the first support block 3301 away from the locking sleeve 3100.

[0066] Please refer to Figures 1 to 7 The first limiting component includes a first limiting plate 3401 and a first limiting bolt 3402. The first limiting plate 3401 is arranged in a horizontal direction and is located on the front side wall of the first positioning part 2102. Two sets of first limiting bolts 3402 are provided and are respectively located at both ends of the first limiting plate 3401. The first limiting bolts 3402 pass through the first limiting plate 3401 and into the first positioning part 2102 to fix the first limiting plate 3401 on the first positioning part 2102.

[0067] The front sidewall of the first positioning part 2102 has an inclined angle, which is consistent with the inclined angle of the first osteotomy surface 1104 of the prosthesis motherboard 1101. After the first limiting plate 3401 is installed, it has an inclined angle consistent with the first osteotomy surface 1104 of the prosthesis motherboard 1101. The front end of the prosthesis motherboard 1101 abuts against the middle of the first limiting plate 3401.

[0068] Please refer to Figures 1 to 7 The upper end face of the second positioning part 2103 is provided with an upper positioning groove 2110. The second clamping assembly is disposed in the upper positioning groove 2110. The second clamping assembly includes a second clamping plate 4101 and a second clamping bolt 4103. The second clamping plate 4101 is disposed in the upper positioning groove 2110. The upper end face of the second clamping plate 4101 is provided with a positioning hole 4102. The positioning hole 4102 is suitable for the insertion of the second fixing post 1103 of the unicompartmental prosthesis.

[0069] The rear end of the upper surface of the second clamping plate 4101 is provided with a guide surface 4104. The guide surface 4104 at the rear end of the second clamping plate 4101 matches the inclination angle of the third osteotomy surface 1106 of the prosthesis main body 1101. The second clamping plate 4101 supports the third osteotomy surface 1106 of the prosthesis main body 1101.

[0070] Please refer to Figures 1 to 7 The second limiting member includes a second limiting block and a second limiting bolt 4203. The second limiting block is disposed on the rear side wall of the second positioning part 2103. The second limiting bolt 4203 passes through the second limiting block and enters the second positioning part 2103 to fix the second limiting block on the second positioning part 2103.

[0071] The second limiting block includes a second fixing block 4201 and a second support block 4202. The second support block 4202 is disposed on the upper edge of the second fixing block 4201. The second fixing block 4201 is disposed on the rear side wall of the second positioning part 2103. The second limiting bolt 4203 passes through the second fixing block 4201. The upper end face of the second support block 4202 matches the inclination angle of the third osteotomy surface 1106 of the prosthesis main plate 1101. The second support block 4202 is used to support the rear end of the prosthesis main plate 1101.

[0072] The outer side of the second limiting bolt 4203 is fitted with a buffer disc spring 4204. The buffer disc spring 4204 achieves good contact between the second limiting component and the unicompartment femoral prosthesis, provides continuous and stable force, and improves the product processing stability.

[0073] Please refer to Figures 1 to 7The lower end face of the second positioning part 2103 is provided with a lower positioning groove 2111. The lower positioning groove 2111 is a wedge-shaped groove. The opening of the lower positioning groove 2111 faces the lower and rear sides of the second positioning part 2103. The second fixing block 4201 is a wedge-shaped block. The shape of the second fixing block 4201 matches that of the lower positioning groove 2111. The upper edge of the second fixing block 4201 is located outside the lower positioning groove 2111. The second support block 4202 is located outside the lower positioning groove 2111 and extends upward along the rear side wall of the second fixing part to support the rear end of the prosthetic motherboard 1101.

[0074] The second limiting bolt 4203 extends upward from the lower end of the second support block 4202 through the second fixing block 4201 and into the bottom of the lower positioning groove 2111, fixing the second support block 4202 in the lower positioning groove 2111.

[0075] Please refer to Figures 1 to 7 The tooling body 2100 is provided with mounting posts at both ends. The mounting posts include a left mounting post 2104 and a right mounting post 2106. The left mounting post 2104 and the right mounting post 2106 facilitate the mounting of the tooling body 2100 on the grinding machine, which is convenient for processing the unicompartmental prosthesis.

[0076] The left end of the left mounting column 2104 has a mounting positioning surface 2105 on its side wall. The mounting positioning surface 2105 is used to limit the installation direction of the tooling body 2100, so as to prevent the tooling body 2100 from shifting or rotating during use and improve the stability of the device.

[0077] Please refer to Figures 1 to 7 The first clamping component and the second clamping component are detachable and replaceable.

[0078] The locking sleeve 3100, the first support block 3301, the first limiting plate 3401, the second clamping plate 4101, and the second limiting block can have various models and specifications. The specifications and models can be selected according to the specifications and models of the unicompartmental prosthesis to be processed. A set of tooling main body 2100 can perform grinding and processing of unicompartmental prostheses of various models and specifications.

[0079] Please refer to Figures 1 to 7 The tooling body 2100 is equipped with multiple processing stations 2101, which are arranged along the length of the tooling body 2100. One tooling body 2100 can simultaneously perform grinding processing on multiple unicompartmental prostheses of the same or different models.

[0080] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single condyle femoral prosthesis femoral component grinder fixture, characterized by, include: The tooling body is columnar, and a processing station is provided on the tooling body. The processing station is suitable for the installation of a unicompartment femoral prosthesis. A first positioning part is provided on the front side of the upper end of the processing station, and an installation hole is provided on the first positioning part. A second positioning part is provided on the rear side of the upper end of the processing station. A first clamping assembly for clamping the first fixation post of a unicompartmental femoral prosthesis includes a locking sleeve and a locking nut. The locking sleeve passes through the mounting hole and is adapted for insertion of the first fixation post. The locking sleeve includes a tightening portion and a threaded portion arranged from top to bottom. The tightening portion includes multiple sets of circumferentially arranged tightening claws. The diameter of the circle containing the upper end of the tightening claw is larger than the diameter of the circle containing its lower end. The inner diameter of the mounting hole changes in accordance with the tightening claws. The locking sleeve has a degree of freedom to move along its length within the mounting hole. The locking nut matches the threaded portion and is located below the first positioning portion. The locking nut is used to adjust the height of the locking sleeve within the mounting hole. as well as The second clamping assembly, used to clamp the second fixation post of the unicompartment femoral prosthesis, is disposed on the second positioning part. The second clamping assembly is provided with a positioning hole, which is suitable for the insertion of the second fixation post.

2. A single femoral component milling tooling fixture for a unicompartmental femoral prosthesis femoral component as claimed in claim 1, characterised in that, A limiting part is provided between the tightening part and the threaded part. The side wall of the limiting part is provided with a first limiting surface. The lower end of the mounting hole is provided with a limiting hole. The side wall of the limiting hole is provided with a second limiting surface. The second limiting surface matches the first limiting surface.

3. The grinding fixture for a unicompartment femoral prosthesis as described in claim 1, characterized in that, The first clamping assembly further includes a first support member, the first support member comprising: A first support block, disposed on the upper end face of the first positioning part, is used to support the edge of the prosthesis main plate of the unicompartment femoral prosthesis; and The first support bolt passes through the first support block and fixes the first support block to the first positioning part; Two sets of the first support members are symmetrically arranged on the left and right sides of the locking sleeve, and the prosthesis motherboard is mounted on the two sets of the first support blocks.

4. A single femoral component milling tooling fixture for a unicompartmental femoral prosthesis femoral component as claimed in claim 1, wherein, It also includes a first limiting member, which includes: A first limiting plate, disposed on the front sidewall of the first positioning part, is used to support the front end of the prosthesis motherboard; and The first limiting bolt passes through the first limiting plate and fixes the first limiting plate to the first positioning part.

5. A single femoral component milling tooling fixture for a unicompartmental femoral prosthesis femoral component as claimed in claim 1, wherein, The upper end face of the second positioning part is provided with an upper positioning groove, and the second clamping assembly is disposed in the upper positioning groove. The second clamping assembly includes: A second clamping plate is disposed on the bottom of the upper positioning groove, and the positioning hole is disposed on the second clamping plate; and The second clamping bolt passes through the second clamping plate and fixes the second clamping plate onto the upper positioning groove.

6. A single femoral component milling tooling fixture for a unicompartmental femoral prosthesis femoral component as claimed in claim 1, wherein, It also includes a second limiting member, which includes: The second limiting block is disposed on the rear side wall of the second positioning part and is used to support the rear end of the prosthetic motherboard; and The second limiting bolt passes through the second limiting block and fixes the second limiting block on the second positioning part. A buffer disc spring is sleeved on the outside of the second limiting bolt.

7. A single femoral component milling jig for a unicompartmental femoral prosthesis as claimed in claim 6, wherein, The lower end face of the second positioning part is provided with a lower positioning groove, the second limiting member is disposed in the lower positioning groove, the upper end of the second limiting member is located outside the lower positioning groove, and the upper end of the second limiting member is used to support the rear end of the prosthetic motherboard.

8. The grinding fixture for a unicompartment femoral prosthesis as described in claim 1, characterized in that, Mounting columns are provided at both ends of the main body of the tooling.

9. A single femoral component milling tooling fixture for a unicompartmental femoral prosthesis femoral component as claimed in claim 1, wherein, The first clamping component and the second clamping component are detachable and replaceable.

10. A single femoral component milling tooling fixture for a unicompartmental femoral prosthesis femoral component as claimed in claim 1, wherein, Multiple processing stations are arranged along the length of the tooling body.

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