CN218899821U - Glenoid for enhancing stability of reverse shoulder joint operation - Google Patents
Glenoid for enhancing stability of reverse shoulder joint operation Download PDFInfo
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- CN218899821U CN218899821U CN202222130467.0U CN202222130467U CN218899821U CN 218899821 U CN218899821 U CN 218899821U CN 202222130467 U CN202222130467 U CN 202222130467U CN 218899821 U CN218899821 U CN 218899821U
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- glenoid
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- spacer
- concave
- reverse shoulder
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Abstract
The utility model relates to the technical field of medical appliances and discloses a glenoid for enhancing stability of a reverse shoulder joint operation, which comprises a glenoid and a spacer, wherein the glenoid is of a cylindrical structure, one end of the glenoid is an inclined plane, an arc-shaped concave surface matched with the spherical surface of a humerus head is arranged on the inclined plane, a coating cavity for coating the upper part of the spacer is arranged at the other end of the glenoid, a first locking structure is arranged in the coating cavity, a concave cavity is arranged on the spacer, and a second locking structure matched and locked with the first locking structure is arranged in the concave cavity; the glenoid for enhancing the stability of the reverse shoulder joint operation solves the problems that the traditional glenoid is not firm after being connected with a spacer and is easy to shift.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a glenoid for enhancing stability of a reverse shoulder joint operation.
Background
In the reverse shoulder joint operation process, most of the existing joint spittoon and the existing spacer are in press fit and taper fit structures, so that certain problems exist in connection stability and the joint spittoon is easy to separate. The existing glenoid and the spacer are not firm after being connected, the displacement is easy to occur, the glenoid is easy to deviate from the spacer when a patient moves after the operation, secondary injury and secondary operation are caused, and the efficiency of the shoulder joint operation is greatly affected.
Disclosure of Invention
It is an object of the present utility model to provide a glenoid for enhanced stability of reverse shoulder surgery that solves at least one of the above-identified problems of the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides an enhanced anti-glenoid of putting shoulder joint operation stability, includes glenoid and spacer, the glenoid is cylindric structure, the one end of glenoid is the inclined plane, be equipped with on the inclined plane with humeral head spherical complex arc concave surface, the other end of glenoid is equipped with the cladding chamber that is used for cladding spacer upper portion, cladding intracavity is equipped with first locking structure, be equipped with the sunken chamber on the spacer, be equipped with the second locking structure with first locking structure cooperation locking in the sunken chamber;
the first locking structure comprises a positioning protrusion and barbs, wherein a plurality of extending parts are uniformly arranged on the positioning protrusion in the circumferential direction, concave parts are arranged on the extending parts, the barbs are uniformly arranged around the positioning protrusion in the circumferential direction, and the barbs and the extending parts are arranged at intervals;
the second locking structure comprises a plurality of protruding portions and buckling blocks, the protruding portions are uniformly arranged along the circumference of the inner side wall of the concave cavity, the protruding portions are connected with the corresponding concave portions in a clamping mode, and the concave cavities are provided with the buckling blocks which are buckled with the barbs.
In the technical scheme, one end of the glenoid is an inclined plane, and an arc-shaped concave surface matched with the spherical surface of the humerus head is arranged on the inclined plane, so that the humerus head and the arc-shaped concave surface of the glenoid are matched to perform spherical motion to simulate normal shoulder joint motion; because the other end of the glenoid is provided with the coating cavity for coating the upper part of the spacer, after the glenoid is installed, the spacer is not easy to displace after being coated by the glenoid; because the cladding intracavity is equipped with first locking structure, be equipped with the concave cavity on the spacer, be equipped with the second locking structure with first locking structure cooperation locking in the concave cavity, specifically, the setting of extension and concave part on the location arch, and the barb setting in the cladding intracavity, can just with the bellying and the lock joint piece cooperation that concave intracavity set up, bellying and concave part cooperation can restrict the rotation of glenoid and spacer, the cooperation of barb and lock joint piece can restrict the separation of glenoid and spacer emergence axis direction, thereby make glenoid and spacer cooperation more stable, firm, above-mentioned structure only need the butt joint lock to realize the installation, and locking effect stability is high, the degree of cooperation is high, be difficult to produce relative displacement, thereby it is not firm after being connected to have solved current glenoid and spacer, the problem of shifting takes place easily.
Further, in order to more conveniently assemble the glenoid and the spacer, 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 achieve a more stable matching effect, the cladding cavity is a circular cladding cavity, a positioning space is formed between adjacent extension parts, the barbs are arranged in the positioning space, the barbs are arc-shaped barbs, the circle centers of the arc-shaped sides of the arc-shaped barbs are concentric with the circle centers of the cladding cavity, and the outer endpoints of the extension parts and the outer side faces of the arc-shaped barbs are all located on the same circular side line.
Further, in order to more conveniently operate the butt joint of the glenoid and the spacer and limit the relative position rotation of the glenoid and the spacer, the whole extension part and the concave part are of plum blossom-shaped structures.
Further, in order to enable the upper end of the spacer to extend completely into the cladding cavity of the glenoid under the installation state, a better cladding effect is achieved, and the lower ends of the positioning protrusions are flush with the lower ends of the barbs.
Further, in order to allow the upper end of the spacer to extend completely into the cladding cavity of the glenoid in the installed state, a better cladding effect is achieved, the depth of the recessed cavity is consistent with the height of the first locking structure.
Further, in order to improve the coating effect, the depth of the coating cavity is greater than that of the concave cavity.
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.
Furthermore, the inclination angle between the inclined plane and the horizontal plane is less than A, less than A=165-170 degrees, and the neck stem angle after the glenoid and the spacer are matched with the humerus handle is 145 degrees, so that the neck stem angle can be increased, and the upper dislocation can be prevented.
Further, a connecting handle connected with the humerus handle is arranged on the spacer, the connecting handle is conical, and the radius of the upper end of the connecting handle is larger than that of the lower end of the connecting handle. The spacer is pressed into the proximal end of the humerus handle through the connection handle cone, so that the spacer and the humerus handle are fixedly installed.
The beneficial effects of the utility model are as follows: in the technical scheme, one end of the glenoid is an inclined plane, and an arc-shaped concave surface matched with the spherical surface of the humerus head is arranged on the inclined plane, so that the humerus head and the arc-shaped concave surface of the glenoid are matched to perform spherical motion to simulate normal shoulder joint motion; because the other end of the glenoid is provided with the coating cavity for coating the upper part of the spacer, after the glenoid is installed, the spacer is not easy to displace after being coated by the glenoid; because the cladding intracavity is equipped with first locking structure, be equipped with the concave cavity on the spacer, be equipped with the second locking structure with first locking structure cooperation locking in the concave cavity, specifically, the setting of extension and concave part on the location arch, and the barb setting in the cladding intracavity, can just with the bellying and the lock joint piece cooperation that concave intracavity set up, bellying and concave part cooperation can restrict the rotation of glenoid and spacer, the cooperation of barb and lock joint piece can restrict the separation of glenoid and spacer emergence axis direction, thereby make glenoid and spacer cooperation more stable, firm, above-mentioned structure only need the butt joint lock to realize the installation, and locking effect stability is high, the degree of cooperation is high, be difficult to produce relative displacement, thereby it is not firm after being connected to have solved current glenoid and spacer, the problem of shifting takes place easily.
Drawings
FIG. 1 is a schematic view of a first view of the glenoid of the present utility model;
FIG. 2 is a schematic side view of the glenoid of the present utility model;
FIG. 3 is a schematic view of the bottom view of the glenoid of the present utility model;
FIG. 4 isbase:Sub>A schematic view of the cross-sectional structure A-A of FIG. 3;
FIG. 5 is a second perspective view of the glenoid of the present utility model;
FIG. 6 is a schematic view of a first view structure of a spacer according to the present utility model;
FIG. 7 is a schematic side view of a spacer according to the present utility model;
FIG. 8 is a schematic top view of a spacer according to the present utility model;
FIG. 9 is a schematic view of the cross-sectional structure B-B of FIG. 8;
FIG. 10 is a schematic view of the assembled state of the present utility model;
FIG. 11 is a schematic cross-sectional view of the assembled state of the present utility model;
fig. 12 is a schematic view of the assembled state of the present utility model with other components.
In the figure: glenoid 1; a spacer 2; an inclined surface 3; an arc-shaped concave surface 4; a cladding chamber 5; a concave cavity 6; positioning projections 7; a barb 8; an extension 9; a recessed portion 10; a boss 11; a snap-on block 12; a first inclined surface 13; a second inclined surface 14; a positioning space 15; a connection handle 16; humeral stem 17; humeral head 18; scapular spittoon holder 19.
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. 1-12, the present embodiment provides a glenoid for enhancing stability of a reverse shoulder joint surgery, including a glenoid 1 and a spacer 2, wherein the glenoid 1 has a cylindrical structure, one end of the glenoid 1 has an inclined plane 3, the inclined plane 3 is provided with an arc concave surface 4 in spherical fit with a humeral head 18, the other end of the glenoid 1 is provided with a cladding cavity 5 for cladding the upper part of the spacer 2, a first locking structure is arranged in the cladding cavity 5, a concave cavity 6 is arranged on the spacer 2, and a second locking structure which is locked in cooperation with the first locking structure is arranged in the concave cavity 6;
the first locking structure comprises a positioning protrusion 7 and barbs 8, wherein a plurality of extending parts 9 are uniformly arranged on the positioning protrusion 7 in the circumferential direction, concave parts 10 are arranged on the extending parts 9, the barbs 8 are uniformly arranged around the positioning protrusion 7 in the circumferential direction, and the barbs 8 and the extending parts 9 are arranged at intervals;
the second locking structure comprises a plurality of protruding portions 11 and buckling blocks 12, the protruding portions 11 are uniformly arranged along the circumference of the inner side wall of the concave cavity 6, the protruding portions 11 are clamped with the corresponding concave portions 10, the concave cavity 6 is provided with the buckling blocks 12 buckled with the barbs 8, and the buckling blocks 12 are specifically arranged at the edge positions of the concave cavity 6.
In the technical scheme, as one end of the glenoid 1 is the inclined plane 3, the inclined plane 3 is provided with the arc-shaped concave surface 4 which is matched with the spherical surface of the humerus head 18, and the humerus head 18 is matched with the arc-shaped concave surface 4 of the glenoid 1 to perform spherical motion so as to simulate normal shoulder joint motion; because the other end of the glenoid 1 is provided with the coating cavity 5 for coating the upper part of the spacer 2, after the glenoid 1 is installed, the spacer 2 is not easy to displace after being coated by the glenoid 1; because be equipped with first locking structure in the cladding chamber 5, be equipped with sunken chamber 6 on the spacer 2, be equipped with the second locking structure with first locking structure cooperation locking in sunken chamber 6, specifically, the setting of extension 9 and sunken part 10 on the location arch 7, and barb 8 setting in cladding chamber 5, can just with the bellying 11 and the lock joint piece 12 cooperation that set up in sunken chamber 6, bellying 11 and sunken part 10 cooperation can restrict the rotation of glenoid 1 and spacer 2, barb 8 and lock joint piece 12's cooperation can restrict glenoid 1 and spacer 2 and take place the axial separation, thereby make glenoid 1 and spacer 2 cooperation more stable, firm, in total, above-mentioned structure only need the butt joint lock can realize the installation, and locking effect stability is high, the degree of fit is high, be difficult to produce relative displacement, thereby the problem that the existing glenoid is not firm after being connected with the spacer, take place the aversion easily is solved.
Example 2:
this example was optimized based on example 1 above.
In order to more conveniently assemble the glenoid 1 and the spacer 2, the lower end of the barb 8 is provided with a first inclined surface 13 and the upper end of the buckling block 12 is provided with a second inclined surface 14.
Example 3:
this example was optimized based on example 1 above.
In order to achieve a more stable matching effect, the cladding cavity 5 is a circular cladding cavity 5, a positioning space 15 is formed between adjacent extension parts 9, the barbs 8 are arranged in the positioning space 15, namely, certain gaps are formed between the barbs 8 and the positioning protrusions 7, an avoidance space can be provided for the process of buckling the barbs 8 and the buckling blocks 12, the barbs 8 are arc barbs 8, the circle centers of the arc sides of the arc barbs 8 are concentric with the circle centers of the cladding cavity 5, and the outer end points of the extension parts 9 and the outer side surfaces of the arc barbs 8 are all located on the same circular side line.
Example 4:
this example was optimized based on example 1 above.
In order to facilitate the operation of the abutting joint of the glenoid 1 and the spacer 2 and to limit the relative rotation of the two, the extension 9 and the recess 10 are integrally configured in a quincuncial shape.
Example 5:
this example was optimized based on example 1 above.
As shown in fig. 4, in order to allow the upper end of the spacer 2 to extend completely into the coating cavity 5 of the glenoid 1 in the installed state, a better coating effect is achieved, the lower end of the positioning protrusion 7 being flush with the lower end of the barb 8.
Example 6:
this example was optimized based on example 1 above.
As shown in fig. 11, in order to allow the upper end of the spacer 2 to extend completely into the cladding cavity 5 of the glenoid 1 in the installed state, a better cladding effect is achieved, the depth of the concave cavity 6 being identical to the height of the first locking structure.
Example 7:
this example was optimized based on example 1 above.
In order to enhance the cladding effect, the depth of the cladding cavity 5 is greater than the depth of the recessed cavity 6.
Example 8:
this example was optimized based on example 1 above.
In order to achieve a better locking effect, four extending parts 9 are uniformly arranged on the positioning protrusion 7 in the circumferential direction, and the barbs 8 are four and uniformly arranged around the positioning protrusion 7 in the circumferential direction.
Example 9:
this example was optimized based on example 1 above.
The inclination angle between the inclined plane 3 and the horizontal plane is < A >, < A=165-170 degrees, preferably < A= 169.88 degrees, and the neck stem angle after the glenoid 1, the spacer 2 and the humerus stem are matched is 145 degrees, so that the neck stem angle can be increased, and the upper dislocation can be prevented.
Example 10:
this example was optimized based on example 1 above.
The spacer 2 is provided with a connecting handle 16 connected with a humerus handle 17, the connecting handle 16 is conical, and the radius of the upper end of the connecting handle 16 is larger than that of the lower end. The spacer 2 is pressed into the proximal end of the humerus stem 17 by means of a taper fit of the stem 16, achieving a secure mounting of the two.
The specific operation steps of the technical scheme are as follows: implants required for the reverse shoulder surgery include a humeral stem 17, a spacer 2, a glenoid 1, a humeral head 18, and a glenoid holder 19. The humeral stem 17 is inserted into the patient's intramedullary canal and the spacer 2 is pressed into the proximal end of the humeral stem 17 by a taper, the glenoid 1 is combined with the spacer 2 by the quincuncial configuration and the barb 8, and the humeral head 18 spherically moves within the arcuate concave surface 4 of the glenoid 1, simulating normal shoulder movement. The cylindrical end of the glenoid fixator 19 is in tapered engagement with the humerus head 18, and the lower end of the glenoid fixator 19 is secured to the patient's scapula by screws.
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 glenoid for enhancing stability of a reverse shoulder procedure, comprising: the novel bone fracture joint comprises a glenoid and a spacer, wherein the glenoid is of a cylindrical structure, one end of the glenoid is an inclined plane, an arc-shaped concave surface matched with the spherical surface of a humerus is arranged on the inclined plane, a coating cavity for coating the upper part of the spacer is arranged at the other end of the glenoid, a first locking structure is arranged in the coating cavity, a concave cavity is arranged on the spacer, and a second locking structure matched and locked with the first locking structure is arranged in the concave cavity;
the first locking structure comprises a positioning protrusion and barbs, wherein a plurality of extending parts are uniformly arranged on the positioning protrusion in the circumferential direction, concave parts are arranged on the extending parts, the barbs are uniformly arranged around the positioning protrusion in the circumferential direction, and the barbs and the extending parts are arranged at intervals;
the second locking structure comprises a plurality of protruding portions and buckling blocks, the protruding portions are uniformly arranged along the circumference of the inner side wall of the concave cavity, the protruding portions are connected with the corresponding concave portions in a clamping mode, and the concave cavities are provided with the buckling blocks which are buckled with the barbs.
2. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: 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.
3. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: the cladding cavity is circular cladding cavity, is the location space between the adjacent extension, the barb sets up in the location space, the barb is the arc barb, the centre of a circle of the arc limit of arc barb is concentric with the centre of a circle in cladding cavity, the outer extreme point of extension all is located same circular limit line with the lateral surface of arc barb.
4. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: the extending part and the concave part are integrally in a plum blossom-shaped structure.
5. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: the lower end of the positioning protrusion is flush with the lower end of the barb.
6. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: the depth of the concave cavity is consistent with the height of the first locking structure.
7. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: the depth of the cladding cavity is greater than the depth of the recessed cavity.
8. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: 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.
9. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: the inclination angle between the inclined plane and the horizontal plane is < A >, and < A=165-170 degrees.
10. A glenoid for enhanced stability of reverse shoulder surgery as claimed in claim 1, wherein: the spacer is provided with a connecting handle connected with the humerus handle, the connecting handle is conical, and the radius of the upper end of the connecting handle is larger than that of the lower end of the connecting handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222130467.0U CN218899821U (en) | 2022-08-12 | 2022-08-12 | Glenoid for enhancing stability of reverse shoulder joint operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222130467.0U CN218899821U (en) | 2022-08-12 | 2022-08-12 | Glenoid for enhancing stability of reverse shoulder joint operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218899821U true CN218899821U (en) | 2023-04-25 |
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ID=86017744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222130467.0U Active CN218899821U (en) | 2022-08-12 | 2022-08-12 | Glenoid for enhancing stability of reverse shoulder joint operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218899821U (en) |
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2022
- 2022-08-12 CN CN202222130467.0U patent/CN218899821U/en active Active
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