CN220089707U - Novel prosthesis for reverse shoulder joint replacement - Google Patents
Novel prosthesis for reverse shoulder joint replacement Download PDFInfo
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- CN220089707U CN220089707U CN202320669643.XU CN202320669643U CN220089707U CN 220089707 U CN220089707 U CN 220089707U CN 202320669643 U CN202320669643 U CN 202320669643U CN 220089707 U CN220089707 U CN 220089707U
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- prosthesis
- locking
- reverse shoulder
- protrusion
- barbs
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- 210000000323 shoulder joint Anatomy 0.000 title abstract description 18
- 241001653121 Glenoides Species 0.000 claims abstract description 57
- 210000002758 humerus Anatomy 0.000 claims abstract description 45
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000002980 postoperative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004095 humeral head Anatomy 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model relates to the technical field of medical equipment, and discloses a novel prosthesis for replacing a reverse shoulder joint, which comprises a glenoid prosthesis and a humerus upper end prosthesis, wherein a first locking structure, a second locking structure and a reinforced locking structure are arranged between the glenoid prosthesis and the humerus upper end prosthesis; the first locking structure comprises a positioning bulge and barbs, wherein the positioning bulge and barbs are arranged at the lower end of the glenoid prosthesis, a plurality of extending parts are uniformly arranged on the positioning bulge in the circumferential direction, concave parts are arranged on the extending parts, a plurality of barbs are uniformly arranged around the positioning bulge in the circumferential direction, and the barbs and the extending parts are arranged at intervals; the utility model provides a novel prosthesis for replacing a reverse shoulder joint, which solves the problem that the impact resistance of the existing glenoid prosthesis and the upper humerus prosthesis is still to be improved.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a novel prosthesis for reverse shoulder joint replacement.
Background
During the replacement procedure of the reverse shoulder joint prosthesis, it is necessary to treat the cephalad humerus to install the humeral stem prosthesis, and then the glenoid prosthesis and the superior humerus prosthesis are installed on the humeral stem prosthesis for reverse replacement of the shoulder joint.
When the reverse total shoulder joint replacement is performed, since the glenoid prosthesis and the upper humerus prosthesis are impact force receiving points of the humeral head prosthesis, the locking force of the glenoid prosthesis and the upper humerus prosthesis, that is, the impact force has a great influence on the surgical effect and the surgical quality after the replacement.
The present company has a glenoid prosthesis and a humeral superior prosthesis, but the prosthesis does not have a reinforced locking structure. Since the impact resistance of the glenoid prosthesis to the superior humerus prosthesis plays a critical role in the reverse shoulder replacement, improvement of the connection structure of the two prostheses and increase of the connection strength are very necessary.
Disclosure of Invention
The object of the present utility model is to provide a novel prosthesis for reverse shoulder replacement which solves at least one of the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a novel prosthesis for reverse shoulder joint replacement, comprising a glenoid prosthesis and a humeral upper end prosthesis, wherein a first locking structure, a second locking structure and a reinforced locking structure are arranged between the glenoid prosthesis and the humeral upper end prosthesis;
the first locking structure comprises a positioning bulge and barbs, wherein the positioning bulge and barbs are arranged at the lower end of the glenoid prosthesis, a plurality of extending parts are uniformly arranged on the positioning bulge in the circumferential direction, concave parts are arranged on the extending parts, a plurality of barbs are uniformly arranged around the positioning bulge in the circumferential direction, and the barbs and the extending parts are arranged at intervals;
the second locking structure comprises a concave cavity, a plurality of convex parts and buckling blocks, wherein the concave cavity is formed at the upper end of the prosthesis at the upper end of the humerus, the convex parts are uniformly arranged along the circumferential direction of the inner side wall of the concave cavity and are in clamping connection with the corresponding concave parts, and the concave cavity is provided with the buckling blocks which are buckled with the barbs;
the reinforced locking structure comprises a locking protrusion arranged on the lower end surface of the positioning protrusion and a locking buckling part arranged on the inner bottom wall of the concave cavity, and the locking protrusion is matched with the locking buckling part in a clamping way.
In this technical scheme, because sunken chamber shaping is in the upper end of humerus upper end false body, sunken intracavity is equipped with the second locking structure that cooperates the locking with first locking structure, specifically, the setting and the barb setting of extension and concave part on the location arch, can just cooperate with protruding portion and the lock joint piece that sunken intracavity set up, protruding portion and concave part cooperation can restrict the rotation of glenoid false body and humerus upper end false body, the cooperation of barb and lock joint piece can restrict glenoid false body and the disconnection of humerus upper end false body emergence axis direction, thereby make glenoid false body and the cooperation of humerus upper end false body more stable, firm.
In addition, because the reinforced locking structure is further arranged between the glenoid prosthesis and the upper humerus prosthesis, specifically, the joint strength between the glenoid prosthesis and the upper humerus prosthesis in the reverse shoulder joint replacement operation is further enhanced through the matching of the locking bulge arranged on the lower end face of the positioning bulge and the locking buckling part arranged on the inner bottom wall of the concave cavity, the reinforced locking structure can be increased to bear the stress of the shoulder joint of a human body, the glenoid prosthesis is effectively prevented from being separated from the upper humerus prosthesis under the impact force of the humerus prosthesis, the locking force is increased, the operation quality is improved, and the postoperative effect is improved. The setting of above-mentioned reinforcing locking structure, under the circumstances that does not influence operation and function, can increase the joint strength between the prosthesis, guarantee postoperative effect and can effectively avoid deviate from the risk, improve the quality of reverse shoulder joint prosthesis replacement operation.
Further, in order to promote the locking force between glenoid prosthesis and the upper humerus prosthesis, the lower end face of the positioning protrusion is provided with a plurality of locking protrusions, the locking protrusions are uniformly arranged along the axial circumference of the positioning protrusion, and the locking fastening parts are a plurality of matching holes arranged on the inner bottom wall of the concave cavity.
Further, in order to enhance the locking force between the glenoid prosthesis and the superior humerus prosthesis, the locking protrusions and the mating holes are each provided with four.
Further, in order to provide a specific locking structure easy to mold, the locking protrusion is of a cylindrical structure, and the matching hole is a round hole.
Further, in order to provide a specific locking structure easy to form, the locking protrusion is an arc protrusion, and the locking fastening part is an arc groove or an arc hole matched with the arc protrusion.
Further, in order to enhance the locking force between the glenoid prosthesis and the upper humerus prosthesis, two arc-shaped protrusions are uniformly arranged along the circumferential direction of the axis of the positioning protrusion, and the positions of the arc-shaped grooves or the arc-shaped holes correspond to the positions of the arc-shaped protrusions.
Further, in order to more conveniently assemble the glenoid prosthesis and the upper humerus prosthesis, the lower end of the barb is provided with a first inclined plane, and the upper end of the buckling block is provided with a second inclined plane.
Further, in order to more conveniently operate the butt joint of the glenoid prosthesis and the upper humerus prosthesis and limit the relative position rotation of the extension part and the recess part, the extension part and the recess part are integrally in a plum blossom-shaped structure.
Further, in order to enable the locating projection and the barb of the glenoid prosthesis to be located entirely within the recessed cavity of the upper humeral prosthesis, the lower end of the locating projection is flush with the lower end of the barb.
Further, in order to achieve a better locking effect, four extending portions are uniformly arranged on the positioning protrusions in the circumferential direction, and the barbs are four and uniformly arranged around the positioning protrusions in the circumferential direction.
The beneficial effects of the utility model are as follows: in this technical scheme, because sunken chamber shaping is in the upper end of humerus upper end false body, sunken intracavity is equipped with the second locking structure that cooperates the locking with first locking structure, specifically, the setting and the barb setting of extension and concave part on the location arch, can just cooperate with protruding portion and the lock joint piece that sunken intracavity set up, protruding portion and concave part cooperation can restrict the rotation of glenoid false body and humerus upper end false body, the cooperation of barb and lock joint piece can restrict glenoid false body and the disconnection of humerus upper end false body emergence axis direction, thereby make glenoid false body and the cooperation of humerus upper end false body more stable, firm.
In addition, because the reinforced locking structure is further arranged between the glenoid prosthesis and the upper humerus prosthesis, specifically, the joint strength between the glenoid prosthesis and the upper humerus prosthesis in the reverse shoulder joint replacement operation is further enhanced through the matching of the locking bulge arranged on the lower end face of the positioning bulge and the locking buckling part arranged on the inner bottom wall of the concave cavity, the reinforced locking structure can be increased to bear the stress of the shoulder joint of a human body, the glenoid prosthesis is effectively prevented from being separated from the upper humerus prosthesis under the impact force of the humerus prosthesis, the locking force is increased, the operation quality is improved, and the postoperative effect is improved. The setting of above-mentioned reinforcing locking structure, under the circumstances that does not influence operation and function, can increase the joint strength between the prosthesis, guarantee postoperative effect and can effectively avoid deviate from the risk, improve the quality of reverse shoulder joint prosthesis replacement operation.
Drawings
FIG. 1 is a schematic view of a first view of a glenoid prosthesis in a first embodiment of the present utility model;
FIG. 2 is a schematic view of the bottom view of the glenoid prosthesis of the first embodiment of the present utility model;
FIG. 3 is a schematic view of a first view of a humeral upper prosthesis according to a first embodiment of the present utility model;
FIG. 4 is a schematic view of a first embodiment of a humeral superior prosthesis according to the present utility model;
FIG. 5 is a schematic view of a second embodiment of a glenoid prosthesis from a first perspective in accordance with the present utility model;
FIG. 6 is a schematic view of a bottom view of a glenoid prosthesis in a second embodiment of the present utility model;
FIG. 7 is a schematic view of a humeral superior prosthesis from a first perspective according to a second embodiment of the present utility model;
FIG. 8 is a schematic view of a second view of a humeral superior prosthesis according to a second embodiment of the present utility model;
FIG. 9 is a schematic view of a third embodiment of a glenoid prosthesis from a first perspective in accordance with the present utility model;
FIG. 10 is a schematic view of a bottom view of a glenoid prosthesis in a third embodiment of the present utility model;
FIG. 11 is a schematic view of a third embodiment of a humeral upper prosthesis according to the present utility model;
FIG. 12 is a schematic view of a third embodiment of a humeral superior prosthesis according to the present utility model;
FIG. 13 is a schematic view of the assembled state of the present utility model with other components;
FIG. 14 is a cross-sectional view of two glenoid prostheses of different diameter and height dimensions in this embodiment;
fig. 15 is a schematic view showing the structure of two kinds of humeral upper prostheses having different height dimensions in the present embodiment.
In the figure: glenoid prosthesis 1; a humeral upper prosthesis 2; positioning projections 3; a barb 4; an extension 5; a recessed portion 6; a concave cavity 7; a boss 8; a fastening block 9; a locking protrusion 10; a locking buckle portion 11; a first inclined surface 12; and a second inclined surface 13.
Detailed Description
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model.
Example 1:
as shown in fig. 1 to 15, the present embodiment provides a novel prosthesis for reverse shoulder replacement, comprising a glenoid prosthesis 1 and a humeral superior prosthesis 2, wherein a first locking structure, a second locking structure and a reinforcing locking structure are arranged between the glenoid prosthesis 1 and the humeral superior prosthesis 2;
the first locking structure comprises a positioning bulge 3 and barbs 4, wherein the positioning bulge 3 and the barbs 4 are arranged at the lower end of the glenoid prosthesis 1, a plurality of extending parts 5 are uniformly arranged on the positioning bulge 3 in the circumferential direction, concave parts 6 are arranged on the extending parts 5, the barbs 4 are uniformly arranged around the positioning bulge 3 in the circumferential direction, and the barbs 4 and the extending parts 5 are arranged at intervals;
the second locking structure comprises a concave cavity 7, a convex part 8 and a buckling block 9, wherein the concave cavity 7 is formed at the upper end of the prosthesis 2 at the upper end of the humerus, the convex parts 8 are multiple and uniformly arranged along the circumferential direction of the inner side wall of the concave cavity 7, the convex parts 8 are clamped with the corresponding concave parts 6, and the concave cavity 7 is provided with the buckling block 9 which is buckled with the barb 4;
the reinforced locking structure comprises a locking protrusion 10 arranged on the lower end surface of the positioning protrusion 3 and a locking buckling part 11 arranged on the inner bottom wall of the concave cavity 7, wherein the locking protrusion 10 is matched with the locking buckling part 11 in a clamping way.
In this technical scheme, because sunken chamber 7 shaping is in the upper end of humerus upper end prosthesis 2, be equipped with in the sunken chamber 7 with the second locking structure of first locking structure cooperation locking, specifically, the setting of extension 5 and sunken part 6 and barb 4 setting on the location arch 3, can just with the bellying 8 and the lock joint piece 9 cooperation that set up in the sunken chamber 7, bellying 8 and the cooperation of sunken part 6 can restrict the rotation of glenoid prosthesis 1 and humerus upper end prosthesis 2, the cooperation of barb 4 and lock joint piece 9 can restrict glenoid prosthesis 1 and the disconnection of humerus upper end prosthesis 2 emergence axis direction, thereby make glenoid prosthesis 1 and the cooperation of humerus upper end prosthesis 2 more stable, firm.
In addition, because the reinforcing locking structure is further arranged between the glenoid prosthesis 1 and the upper humerus prosthesis 2, specifically, the joint strength of the glenoid prosthesis 1 and the upper humerus prosthesis 2 in the reverse shoulder joint replacement operation is further enhanced through the matching of the locking protrusion 10 arranged on the lower end face of the positioning protrusion 3 and the locking buckling part 11 arranged on the inner bottom wall of the concave cavity 7, the glenoid prosthesis 1 can be effectively prevented from being separated from the upper humerus prosthesis 2 under the stress of the shoulder joint of a human body under the impact force of the humerus prosthesis by increasing the reinforcing locking structure, the locking force is increased, the operation quality is improved, and the postoperative effect is improved. The setting of above-mentioned reinforcing locking structure, under the circumstances that does not influence operation and function, can increase the joint strength between the prosthesis, guarantee postoperative effect and can effectively avoid deviate from the risk, improve the quality of reverse shoulder joint prosthesis replacement operation.
Example 2:
this example was optimized based on example 1 above.
For the locking force between the glenoid prosthesis 1 and the humerus upper end prosthesis 2, the lower end surface of the positioning boss 3 is provided with a plurality of locking bosses 10, the locking bosses 10 are uniformly arranged along the axial circumference of the positioning boss 3, and the locking fastening parts 11 are a plurality of matching holes arranged on the inner bottom wall of the concave cavity 7.
Example 3:
this example was optimized based on example 2 above.
As shown in fig. 1, 2, 5 and 6, in order to enhance the locking force between the glenoid prosthesis 1 and the superior humeral prosthesis 2, the locking protrusion 10 and the mating hole are provided with four.
Example 4:
this example was optimized based on example 1 above.
As shown in fig. 1, 2, 5 and 6, in order to provide a specific locking structure which is easy to form, the locking protrusion 10 has a cylindrical structure, and the mating hole has a circular hole.
Example 5:
this example was optimized based on example 1 above.
As shown in fig. 9 to 12, in order to provide a specific locking structure which is easy to form, the locking protrusion 10 is an arc-shaped protrusion, and the locking fastening portion 11 is an arc-shaped groove or an arc-shaped hole which is matched with the arc-shaped protrusion.
Example 6:
this example was optimized based on example 5 above.
As shown in fig. 9 to 12, in order to enhance the locking force between the glenoid prosthesis 1 and the humeral upper end prosthesis 2, the arcuate projections are uniformly provided with two along the axial circumference of the positioning projection 3, and the positions of the arcuate grooves or arcuate holes correspond to the positions of the arcuate projections.
Example 7:
this example was optimized based on example 1 above.
In order to more conveniently assemble the glenoid prosthesis 1 and the upper humerus prosthesis 2, the lower end of the barb 4 is provided with a first inclined surface 12 and the upper end of the buckling block 9 is provided with a second inclined surface 13.
Example 8:
this example was optimized based on example 1 above.
In order to facilitate the operation of the abutment of the glenoid prosthesis 1 and the superior humerus prosthesis 2 and to limit the relative rotation of the two, the extension 5 and the recess 6 are integrally configured in a quincuncial shape.
Example 9:
this example was optimized based on example 1 above.
In order to enable the locating projection 3 and barb 4 of the glenoid prosthesis 1 to be located entirely within the recessed cavity 7 of the upper humeral prosthesis 2, the lower end of the locating projection 3 is flush with the lower end of the barb 4.
Example 10:
this example was optimized based on example 1 above.
In order to achieve a better locking effect, four extending parts 5 are uniformly arranged on the positioning protrusion 3 in the circumferential direction, and the barbs 4 are four and uniformly arranged around the positioning protrusion 3 in the circumferential direction.
In practice, the glenoid prosthesis 1 can be divided into four types 36, 38, 40, 42 in diameter a, and the height B can be divided into two types 5, 10, so that there are 8 types in total, as shown in fig. 14.
The humeral upper prosthesis 2 can be divided into two models 36-7, 36-12 at a height C, as shown in figure 15.
Finally, it should be noted that: the above is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A novel prosthesis for reverse shoulder replacement, characterized in that: the device comprises a glenoid prosthesis and a humerus upper end prosthesis, wherein a first locking structure, a second locking structure and a reinforcing locking structure are arranged between the glenoid prosthesis and the humerus upper end prosthesis;
the first locking structure comprises a positioning bulge and barbs, wherein the positioning bulge and barbs are arranged at the lower end of the glenoid prosthesis, a plurality of extending parts are uniformly arranged on the positioning bulge in the circumferential direction, concave parts are arranged on the extending parts, a plurality of barbs are uniformly arranged around the positioning bulge in the circumferential direction, and the barbs and the extending parts are arranged at intervals;
the second locking structure comprises a concave cavity, a plurality of convex parts and buckling blocks, wherein the concave cavity is formed at the upper end of the prosthesis at the upper end of the humerus, the convex parts are uniformly arranged along the circumferential direction of the inner side wall of the concave cavity and are in clamping connection with the corresponding concave parts, and the concave cavity is provided with the buckling blocks which are buckled with the barbs;
the reinforced locking structure comprises a locking protrusion arranged on the lower end surface of the positioning protrusion and a locking buckling part arranged on the inner bottom wall of the concave cavity, and the locking protrusion is matched with the locking buckling part in a clamping way.
2. A novel prosthesis for reverse shoulder replacement according to claim 1, characterized in that: the lower end face of the positioning protrusion is provided with a plurality of locking protrusions, the locking protrusions are uniformly arranged along the circumferential direction of the axis of the positioning protrusion, and the locking buckling parts are a plurality of matching holes arranged on the bottom wall in the concave cavity.
3. A novel prosthesis for reverse shoulder replacement according to claim 2, characterized in that: the locking protrusion and the matching hole are respectively provided with four locking protrusions.
4. A novel prosthesis for reverse shoulder replacement according to claim 3, characterized in that: the locking protrusion is of a cylindrical structure, and the matching hole is a round hole.
5. A novel prosthesis for reverse shoulder replacement according to claim 1, characterized in that: the locking protrusion is an arc protrusion, and the locking buckling part is an arc groove or an arc hole matched with the arc protrusion.
6. A novel prosthesis for reverse shoulder replacement according to claim 5, wherein: the arc-shaped protrusions are uniformly arranged in two along the circumferential direction of the axis of the positioning protrusion, and the positions of the arc-shaped grooves or the arc-shaped holes correspond to the positions of the arc-shaped protrusions.
7. A novel prosthesis for reverse shoulder replacement according to claim 1, characterized in that: the lower end of the barb is provided with a first inclined plane, and the upper end of the buckling block is provided with a second inclined plane.
8. A novel prosthesis for reverse shoulder replacement according to claim 1, characterized in that: the extending part and the concave part are integrally in a plum blossom-shaped structure.
9. A novel prosthesis for reverse shoulder replacement according to claim 1, characterized in that: the lower end of the positioning protrusion is flush with the lower end of the barb.
10. A novel prosthesis for reverse shoulder replacement according to claim 1, characterized in that: four extending parts are uniformly arranged on the positioning protrusions in the circumferential direction, and the barbs are four and uniformly arranged around the positioning protrusions in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320669643.XU CN220089707U (en) | 2023-03-29 | 2023-03-29 | Novel prosthesis for reverse shoulder joint replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320669643.XU CN220089707U (en) | 2023-03-29 | 2023-03-29 | Novel prosthesis for reverse shoulder joint replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220089707U true CN220089707U (en) | 2023-11-28 |
Family
ID=88882511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320669643.XU Active CN220089707U (en) | 2023-03-29 | 2023-03-29 | Novel prosthesis for reverse shoulder joint replacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220089707U (en) |
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2023
- 2023-03-29 CN CN202320669643.XU patent/CN220089707U/en active Active
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