CN210872258U - Fixing table - Google Patents

Abstract

The present disclosure relates to the technical field of medical equipment, and provides a fixed station, which is used for fixing humeral head prosthesis and comprises: a support for supporting a humeral head prosthesis; a pressing part which is arranged above the supporting part and is used for contacting with the humerus head prosthesis so as to press the humerus head prosthesis between the supporting part and the pressing part; wherein, the pressing part and the supporting part are relatively movably arranged. The fixing table is relatively movably arranged through the supporting part and the pressing part, so that the humeral head prosthesis can be pressed between the supporting part and the pressing part, and the humeral head prosthesis is prevented from shaking in the subsequent assembly process to influence the assembly reliability.

Description

Fixing table

Technical Field

The present disclosure relates to the technical field of medical equipment, and particularly relates to a fixing table.

Background

At present, the mounting table of the humeral head prosthesis assembly has two structural forms, one of which is represented by DJO, the assembly method is that the humeral head is directly placed on the mounting table in a reverse direction, the humeral neck is placed in the inner hole of the humeral head, and the humeral neck is driven by a beater, and the defects are that the humeral head is easy to swing and unstable to place, which affects the stability of the connection structure. Another installation method, represented by Zimmer corporation, is to assemble the humeral head prosthesis assembly directly on the humeral stem prosthesis fixation table, also resulting in instability of the connection structure.

SUMMERY OF THE UTILITY MODEL

It is a primary object of the present disclosure to overcome the above-described problems of poor stability of prior art humeral head prostheses when placed on a mounting table, and to provide a fixation table.

The utility model provides a fixed station for fixed humerus head false body, the fixed station includes: a support for supporting a humeral head prosthesis; a pressing part which is arranged above the supporting part and is used for contacting with the humerus head prosthesis so as to press the humerus head prosthesis between the supporting part and the pressing part; wherein, the pressing part and the supporting part are relatively movably arranged.

In an embodiment of the present invention, the fixing table further includes: and the fixing column is used for connecting the supporting part and the pressing part so as to enable the supporting part and the pressing part to tightly press the humeral head prosthesis.

In an embodiment of the present invention, the fixing column is disposed on the supporting portion, the pressing portion is provided with a first mounting hole, and the fixing column is inserted into the first mounting hole; wherein, the fixed column is in interference fit with the first mounting hole.

In an embodiment of the present invention, an opening is disposed on the fixing column, the opening has a first side wall and a second side wall which are oppositely disposed, and a distance between the first side wall and the second side wall is adjustably set, so that when the distance between the first side wall and the second side wall is smaller than a preset distance, the pressing portion is movably disposed along the fixing column.

The utility model discloses an in the embodiment, press to be provided with the second mounting hole on the portion of establishing, the second mounting hole communicates with first mounting hole mutually, is provided with spacing portion on the fixed column, and the fixed station still includes: and the locking assembly is arranged in the second mounting hole and is in limit contact with the limiting part so as to limit the fixed column to move relative to the first mounting hole.

The utility model discloses an in the embodiment, spacing portion is a plurality of, and a plurality of spacing portions set up along the length direction interval of fixed column to after adjusting the distance between pressure setting portion and the supporting part, locking Assembly locks in the spacing portion corresponding with the second mounting hole.

In one embodiment of the present invention, the support portion is provided with a receiving space for receiving a humeral head prosthesis.

In an embodiment of the present invention, the support portion includes: the fixing column is arranged on the fixing part, and a first accommodating space section is arranged on the fixing part; the sliding part is provided with a second accommodating space section, and an accommodating space is formed between the first accommodating space section and the second accommodating space section; the sliding part and the fixing part are relatively movably arranged to adjust the size of the accommodating space.

In an embodiment of the present invention, the fixing portion is provided with a mounting groove, the sliding portion is adjustably disposed in the mounting groove, and the supporting portion further includes: the adjusting part penetrates through the fixing part and then is connected with the sliding part; wherein, the regulating part is movably worn to be arranged on the fixed part to drive the sliding part to move in the mounting groove.

In an embodiment of the present invention, the fixing table further includes: a beater for fitting the adapter fitted with the elastic ball cone to the humeral head prosthesis pressed between the support part and the pressing part.

The utility model discloses a relative movably setting of portion is established through supporting part and pressure to the fixed station to can compress tightly the humerus head false body between supporting part and pressure are established the portion, with this avoid the humerus head false body to appear rocking the reliability that influences the assembly in follow-up assembly process.

Drawings

Various objects, features and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings. The drawings are merely exemplary illustrations of the disclosure and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is a schematic diagram illustrating an application configuration of a stationary stage according to an exemplary embodiment;

FIG. 2 is an assembly schematic of a partial structure of a stationary table shown in accordance with an exemplary embodiment;

FIG. 3 is a schematic view of the assembly of the resilient ball cone and the adapter;

FIG. 4 is a schematic partially exploded view of the resilient ball cone, adapter and humeral head prosthesis;

FIG. 5 is a schematic view of the assembled structure of the resilient ball cone, adapter and humeral head prosthesis;

FIG. 6 is a schematic cross-sectional view of FIG. 1;

FIG. 7 is a schematic diagram illustrating the construction of a stationary stage according to an exemplary embodiment;

FIG. 8 is a partial schematic structural view of a stationary table according to an exemplary embodiment;

FIG. 9 is a schematic view of the first cross-sectional configuration of FIG. 8;

FIG. 10 is a schematic view of the second cross-sectional structure of FIG. 8;

FIG. 11 is a schematic view of an assembly structure of a fixing portion and a fixing post of a fixing station according to an exemplary embodiment;

FIG. 12 is a schematic diagram illustrating a first perspective of a stationary portion of a stationary stage according to an exemplary embodiment;

FIG. 13 is a schematic diagram illustrating a second perspective of a stationary portion of a stationary stage according to an exemplary embodiment;

FIG. 14 is a schematic diagram illustrating a third perspective of a stationary portion of a stationary stage according to an exemplary embodiment;

FIG. 15 is a cross-sectional view of a stationary portion of a stationary stage according to an exemplary embodiment;

FIG. 16 is a schematic diagram illustrating a first perspective of a press-fit portion of a fixture according to an exemplary embodiment;

FIG. 17 is a schematic diagram illustrating a second perspective of a press-fit portion of a fixture according to an exemplary embodiment;

FIG. 18 is a schematic illustration of an anchor post of the fixture station shown in accordance with an exemplary embodiment;

FIG. 19 is a schematic diagram illustrating a configuration of a clamping portion of a fixture according to an exemplary embodiment;

FIG. 20 is a schematic diagram illustrating a first perspective of a spring member of a mounting plate in accordance with an exemplary embodiment;

FIG. 21 is a schematic diagram illustrating a second perspective of a spring member of a mounting plate in accordance with an exemplary embodiment;

FIG. 22 is a schematic diagram illustrating the construction of a clamping portion of a fixture according to one exemplary embodiment;

FIG. 23 is a schematic diagram illustrating a guide sleeve of a fixture according to an exemplary embodiment;

FIG. 24 is a schematic diagram illustrating a first perspective of a sliding portion of a stationary stage according to an exemplary embodiment;

FIG. 25 is a block diagram illustrating a second perspective of a sliding portion of a stationary stage according to an exemplary embodiment;

FIG. 26 is a schematic diagram illustrating a third perspective of a sliding portion of a stationary stage according to an exemplary embodiment;

FIG. 27 is a schematic diagram illustrating a configuration of a slide adjustment portion of a stationary table according to an exemplary embodiment;

FIG. 28 is a schematic diagram of a stationary table beater shown in accordance with an exemplary embodiment.

The reference numerals are explained below:

10. humeral head prosthesis; 20. a support portion; 21. a fixed part; 211. a first volume section; 2111. a first spherical surface; 2112. a first cylindrical surface; 212. mounting grooves; 213. a threaded hole; 22. a sliding part; 221. a second volume section; 2211. a second spherical surface; 2212. a second cylindrical surface; 222. perforating holes; 223. a pin hole; 23. an adjustment section; 231. a chute; 30. a pressing part; 31. a first mounting hole; 32. a second mounting hole; 33. a guide sleeve; 40. fixing a column; 41. an opening; 42. a limiting part; 50. a locking assembly; 51. a clamping part; 52. an elastic member; 53. a pressing part; 60. a beater; 70. an elastic ball cone; 80. an adapter.

Detailed Description

Exemplary embodiments that embody features and advantages of the present disclosure are described in detail below in the specification. It is to be understood that the disclosure is capable of various modifications in various embodiments without departing from the scope of the disclosure, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

In the following description of various exemplary embodiments of the disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration various exemplary structures in which aspects of the disclosure may be practiced. Other specific arrangements of systems and steps, and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "over", "between", "within", and the like may be used in this specification to describe various example features and elements of the disclosure, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples in the drawings. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of this disclosure.

An embodiment of the present invention provides a fixing table, please refer to fig. 1 to 28, the fixing table is used for fixing a humeral head prosthesis 10, the fixing table includes: a support 20, the support 20 for supporting the humeral head prosthesis 10; a pressing portion 30, the pressing portion 30 being disposed above the support portion 20 and being configured to contact the humeral head prosthesis 10 to press the humeral head prosthesis 10 between the support portion 20 and the pressing portion 30; wherein the pressing portion 30 is movably disposed relative to the supporting portion 20.

The utility model discloses a fixed station of an embodiment establishes the portion 30 relatively movably setting through supporting part 20 and pressure to can compress tightly humerus head prosthesis 10 between supporting part 20 and pressure establishment portion 30, avoid this humerus head prosthesis 10 to appear rocking in follow-up assembly process and influence the reliability of assembly, solved prior art's the relatively poor problem of stability of humerus head prosthesis placing on the mount table.

In one embodiment, since the humeral head prosthesis 10 is directly pressed between the support portion 20 and the pressing portion 30 during the assembly process, it is ensured that the humeral head prosthesis 10 does not undergo positional displacement during the subsequent assembly process of the adapter 80 assembled with the elastic ball cone 70 onto the humeral head prosthesis 10, i.e., the reliability of the assembly can be ensured.

In one embodiment, the reliability of the press-fitting is ensured by arranging the press-fitting part 30 to be relatively movable with respect to the support part 20, so that the interval between the press-fitting part 30 and the support part 20 can be adjusted according to the size of the humeral head prosthesis 10.

As shown in fig. 2 and 6, the fixing table further includes: fixing posts 40, the fixing posts 40 are used for connecting the supporting portion 20 and the pressing portion 30, so that the supporting portion 20 and the pressing portion 30 press the humeral head prosthesis 10.

In one embodiment, in order to ensure relative fixation between the compression portion 30 and the support portion 20 when the humeral head prosthesis 10 is interposed between the compression portion 30 and the support portion 20, a fixation post 40 is provided to connect the support portion 20 and the compression portion 30, thereby preventing relative movement between the support portion 20 and the compression portion 30.

As shown in fig. 9 and 16, the fixing post 40 is disposed on the supporting portion 20, the pressing portion 30 is provided with a first mounting hole 31, and the fixing post 40 is inserted into the first mounting hole 31; wherein, the fixing column 40 is in interference fit with the first mounting hole 31.

In one embodiment, the fixing post 40 may be directly fixed on the supporting portion 20, and in order to ensure stable connection of the fixing post 40 to the supporting portion 20 and the pressing portion 30, the fixing post 40 is inserted into the first mounting hole 31 of the pressing portion 30 and is in interference fit with the first mounting hole 31, so that the pressing portion 30 may be prevented from moving relative to the fixing post 40.

As shown in fig. 8 and 9, the fixing post 40 is provided with an opening 41, the opening 41 has a first side wall and a second side wall which are oppositely arranged, and the distance between the first side wall and the second side wall is adjustably arranged, so that the pressing portion 30 is movably arranged along the fixing post 40 when the distance between the first side wall and the second side wall is smaller than a preset distance. Since it is necessary to ensure that the pressing portion 30 moves relative to the fixing post 40 during use, at this time, by providing the opening 41 on the fixing post 40, the fixing post 40 with the opening 41 can generate small deformation under the pressing of an external force, so that the fixing post 40 can pass through the first mounting hole 31, after the external force is removed, the fixing post 40 returns to the original state, and at this time, the fixing post 40 is in interference fit with the first mounting hole 31.

As shown in fig. 6 and 9, the pressing portion 30 is provided with a second mounting hole 32, the second mounting hole 32 is communicated with the first mounting hole 31, the fixing column 40 is provided with a limiting portion 42, and the fixing table further includes: and the locking assembly 50 is arranged in the second mounting hole 32 and is in limit contact with the limit part 42 to limit the movement of the fixing column 40 relative to the first mounting hole 31.

In one embodiment, by providing the locking assembly 50 and making the locking assembly 50 in contact with the limiting portion 42 in a limiting manner, that is, on the basis of the interference fit between the fixing post 40 and the first mounting hole 31, the locking assembly 50 fixes the fixing post 40 for the second time, and the relative fixing state can be ensured by the position relationship between the fixing post 40 and the pressing portion 30.

In one embodiment, the plurality of position-limiting portions 42 are provided, and the plurality of position-limiting portions 42 are spaced along the length direction of the fixing post 40, so that the locking assembly 50 is locked to the position-limiting portions 42 corresponding to the second mounting holes 32 after the distance between the pressing portion 30 and the supporting portion 20 is adjusted. Since different humeral head prostheses 10 have different sizes, the distance between the pressing portion 30 and the supporting portion 20 needs to be adjusted accordingly, and therefore, the fixing post 40 is provided with a plurality of position-limiting portions 42, so that when used in different humeral head prostheses 10, the locking assembly 50 can still be ensured to be in position-limiting contact with the position-limiting portions 42.

As shown in fig. 9, the position-limiting portion 42 is a groove, and the locking assembly 50 is detachably disposed in the second mounting hole 32, and the locking assembly 50 includes: a clamping part 51, part of the clamping part 51 passes through the second mounting hole 32 and then is clamped in the groove; an elastic member 52, the elastic member 52 being disposed in the second mounting hole 32, one end of the elastic member 52 being in contact with the grip part 51; the pressing part 53, the pressing part 53 is set in the second mounting hole 32, and contacts with the other end of the elastic piece 52 far away from the clamping part 51; wherein the pressing portion 53 is position-adjustably provided in the second mounting hole 32 to press or release the elastic member 52.

In one embodiment, the position-limiting portion 42 is a groove, and is an annular groove, i.e., a closed annular groove is formed along the circumferential direction of the fixing post 40. During the locking process, the pressing part 53 presses the elastic member 52, and the elastic member 52 drives the clamping part 51 to be clamped in the groove.

In one embodiment, as shown in fig. 18 to 22, the fixing post 40 is provided with a plurality of position-limiting portions 42 along the circumferential direction, the fastening portion 51 is a steel ball, the elastic member 52 is a spring, and the pressing portion 53 is a screw plug, i.e., the end of the second mounting hole 32 has at least a threaded section.

In one embodiment, the compression portion 30 is a moving platen that compresses the end face of the humeral head prosthesis 10.

The limiting part 42 is an annular groove O, and can be provided with 5 annular grooves O, when the steel ball slides to the annular groove, the steel ball can be bounced into the annular groove O to play a role in positioning, so as to meet the requirements of the humeral head prostheses with different heights.

In one embodiment, the press-fit portion 30 is provided with a guide sleeve 33, i.e. the first mounting hole 31 can be understood as an inner hole of the guide sleeve 33, and in this case, the guide sleeve 33 also has a partial hole section of the second mounting hole 32.

In one embodiment, the diameter of the first mounting hole 31 is D, and the outer diameter of the portion of the fixing post 40 penetrating through the first mounting hole 31 is D, where D is greater than or equal to 0.05mm and less than or equal to D and less than or equal to 0.15mm and less than or equal to D. Where D is 0.05mm + D, or 0.1mm + D, or 0.15mm + D, this interference is sufficient to allow the displacement of the compression portion 30 along the fixation post 40 and also to provide a reliable compression of the humeral head prosthesis 10 during assembly.

In one embodiment, the fixing post 40 is a plurality of fixing posts 40, and the plurality of fixing posts 40 are disposed on the supporting portion 20 at intervals. Wherein, the installation's fixity can be guaranteed in the setting of a plurality of fixed columns 40. Alternatively, there are two fixing posts 40, and the two fixing posts 40 are distributed at two positions of the supporting portion 20, namely, at positions close to the outer edge, as long as convenient installation and reliable fastening are ensured.

Optionally, a receiving space for receiving the humeral head prosthesis 10 is provided on the support portion 20. The accommodation space is provided to ensure reliable support of the humeral head prosthesis 10, and also to ensure reliable compression of the humeral head prosthesis 10 by the support portion 20 and the compression portion 30.

As for a specific structure of the support portion 20, as shown in fig. 12 and 24, the support portion 20 includes: the fixing part 21 is provided with a fixing column 40, and the fixing part 21 is provided with a first accommodating space section 211; a sliding part 22, wherein a second accommodating space section 221 is arranged on the sliding part 22, and an accommodating space is formed between the first accommodating space section 211 and the second accommodating space section 221; the sliding part 22 and the fixing part 21 are movably disposed relative to each other to adjust the size of the accommodating space.

In one embodiment, the support portion 20 consists of a fixation portion 21 and a sliding portion 22, wherein a receiving space is formed between the first 211 and second 221 receiving space sections, i.e. the humeral head prosthesis 10 is located between the fixation portion 21 and the sliding portion 22. And the relative movable arrangement of the sliding part 22 and the fixing part 21 allows the sliding part 22 and the fixing part 21 to be adapted to humeral head prostheses 10 of different sizes.

As shown in fig. 7 and 12, the fixing portion 21 is provided with a mounting groove 212, the sliding portion 22 is adjustably disposed in the mounting groove 212, and the supporting portion 20 further includes: the adjusting part 23, the adjusting part 23 is connected with the sliding part 22 after passing through the fixing part 21; the adjusting portion 23 is movably disposed on the fixing portion 21 to drive the sliding portion 22 to move in the mounting groove 212.

In one embodiment, the adjusting portion 23 is mainly configured to drive the sliding portion 22 to move in the mounting groove 212, i.e., to adjust the size of the accommodating space between the fixing portion 21 and the sliding portion 22.

As shown in fig. 24 and 27, the adjusting portion 23 is a bolt, the fixing portion 21 is provided with a threaded hole 213, the sliding portion 22 is provided with a through hole 222, and the bolt is inserted into the through hole 222 after passing through the threaded hole 213; the sliding portion 22 is provided with a pin hole 223 for installing a pin member, the pin hole 223 is communicated with the through hole 222, the pin member is inserted into the sliding slot 231 of the bolt after passing through the pin hole 223 to limit the bolt to move along the through hole 222, and the pin member is slidably disposed relative to the sliding slot 231.

In one embodiment, the adjusting portion 23 is rotatably disposed in the threaded hole 213, the adjusting portion 23 drives the sliding portion 22 to move in the mounting groove 212, and in order to ensure that the adjusting portion 23 drives the sliding portion 22 to move, the sliding portion 22 is provided with a pin hole 223 for mounting a pin member, and the pin member is slidably disposed relative to the sliding groove 231 for ensuring that the adjusting portion 23 is rotatable in the threaded hole 213.

As shown in fig. 12 and 24, the first accommodation space section 211 has a first spherical surface 2111 and a first cylindrical surface 2112, the first spherical surface 2111 being located on the side of the fixing portion 21 close to the press-fitted portion 30, the first cylindrical surface 2112 being located on the side of the fixing portion 21 away from the press-fitted portion 30; second receiving space segment 221 has second spherical surface 2211 and second cylindrical surface 2212, second spherical surface 2211 is disposed opposite to first spherical surface 2111, and second cylindrical surface 2212 is disposed opposite to first cylindrical surface 2112. By providing the wall surfaces of the first and second receiving space sections 211 and 221 as a combination of spherical and cylindrical surfaces, it is possible to avoid point contact between the receiving space and the humeral head prosthesis 10, to more stably place humeral head prostheses 10 of different sizes and specifications, and then to compress them by the compression fitting 30.

As shown in fig. 1 and 28, the fixing table further includes: a beater 60, the beater 60 being used to fit an adapter 80 fitted with an elastic ball cone 70 to the humeral head prosthesis 10 pressed between the support portion 20 and the press portion 30.

In one embodiment, the assembly process of the resilient ball cone 70 with the adapter 80 and humeral head prosthesis 10 is addressed. Assembling and locking the universal ball neck (the elastic ball cone 70) with the adapter 80, as shown in FIG. 3; the assembled elastic ball cone 70 and adapter 80 are placed into the bore of the universal humeral head prosthesis 10 and pressed with a finger, as shown in fig. 4 and 5, and the prosthesis assembly is placed into a fixture to accommodate humeral head prosthesis assemblies of different sizes by adjusting the fixture. Finally the prosthetic component is locked using the adapter beater 60, as shown in fig. 5.

The utility model discloses a relative movably setting of portion 30 is established through supporting part 20 and pressure to the fixed station to can compress tightly humerus head prosthesis 10 between supporting part 20 and pressure portion 30 of establishing, avoid humerus head prosthesis 10 to appear rocking the reliability that influences the assembly in follow-up assembling process with this, solved prior art's humerus head prosthesis and placed the relatively poor problem of stability on the mount table.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and exemplary embodiments be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (10)

1. A fixation table for fixing a humeral head prosthesis (10), the fixation table comprising:

a support (20), the support (20) for supporting the humeral head prosthesis (10);

a pressing portion (30), the pressing portion (30) being disposed above the support portion (20) and being configured to contact the humeral head prosthesis (10) to press the humeral head prosthesis (10) between the support portion (20) and the pressing portion (30);

wherein the pressing part (30) and the supporting part (20) are relatively movably arranged.

2. The stationary station of claim 1, further comprising:

a fixation post (40), the fixation post (40) being used to connect the support portion (20) and the pressing portion (30) such that the support portion (20) and the pressing portion (30) compress the humeral head prosthesis (10).

3. The fixed station of claim 2, wherein the fixed column (40) is arranged on the supporting portion (20), the pressing portion (30) is provided with a first mounting hole (31), and the fixed column (40) is arranged in the first mounting hole (31) in a penetrating manner;

wherein the fixing column (40) is in interference fit with the first mounting hole (31).

4. A stationary table according to claim 3, characterized in that the stationary post (40) is provided with an opening (41), the opening (41) having a first side wall and a second side wall arranged opposite each other, the distance between the first side wall and the second side wall being adjustably arranged, such that the press (30) is movably arranged along the stationary post (40) when the distance between the first side wall and the second side wall is smaller than a preset distance.

5. The fixing table according to claim 4, wherein the pressing portion (30) is provided with a second mounting hole (32), the second mounting hole (32) is communicated with the first mounting hole (31), the fixing column (40) is provided with a limiting portion (42), and the fixing table further comprises:

the locking assembly (50) is arranged in the second mounting hole (32) and is in limit contact with the limit part (42) so as to limit the fixing column (40) to move relative to the first mounting hole (31).

6. The fixing table according to claim 5, wherein the limiting portion (42) is provided in plurality, and the limiting portions (42) are spaced apart from each other along the length direction of the fixing post (40) so that the locking assembly (50) is locked to the limiting portion (42) corresponding to the second mounting hole (32) after the distance between the pressing portion (30) and the supporting portion (20) is adjusted.

7. Fixation table according to any one of claims 2 to 6, characterized in that a receiving space for receiving the humeral head prosthesis (10) is provided on the support (20).

8. A table according to claim 7, wherein the support (20) comprises:

a fixing portion (21), the fixing column (40) being disposed on the fixing portion (21), the fixing portion (21) being provided with a first accommodating space section (211);

a sliding part (22), on which a second accommodation space section (221) is provided on the sliding part (22), the accommodation space being formed between the first accommodation space section (211) and the second accommodation space section (221);

the sliding part (22) and the fixing part (21) are movably arranged relatively to adjust the size of the accommodating space.

9. A stationary table according to claim 8, characterized in that the stationary part (21) is provided with a mounting groove (212), the sliding part (22) being position-adjustably arranged in the mounting groove (212), the support part (20) further comprising:

the adjusting part (23), the adjusting part (23) is connected with the sliding part (22) after passing through the fixing part (21);

the adjusting part (23) is movably arranged on the fixing part (21) in a penetrating mode so as to drive the sliding part (22) to move in the mounting groove (212).

10. A stationary table according to any of claims 1-6, characterized in that the stationary table further comprises:

a beater (60), the beater (60) being for fitting an adapter (80) fitted with an elastic ball cone (70) to the humeral head prosthesis (10) pressed between the support (20) and the pressing portion (30).

Images