CN211271417U - Trans-shoulder joint prosthesis - Google Patents
Trans-shoulder joint prosthesis Download PDFInfo
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- CN211271417U CN211271417U CN201922089419.XU CN201922089419U CN211271417U CN 211271417 U CN211271417 U CN 211271417U CN 201922089419 U CN201922089419 U CN 201922089419U CN 211271417 U CN211271417 U CN 211271417U
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Abstract
The utility model provides a trans shoulder joint prosthesis, include: the glenoid component comprises a glenoid support and a glenoid head, wherein a round upright post with a toothed groove is arranged in the center of the proximal end of the glenoid support, the glenoid head is of an adjustable eccentric structure, the proximal end of the glenoid support is connected with a scapula through a first titanium nail combination and a second titanium nail combination, and the distal end of the glenoid support is connected with the glenoid head through a first screw; the humerus component comprises a humerus pad, a humerus support and a humerus handle, the head of the shoulder pelvis is matched with the humerus pad to form an articular surface, the far end of the humerus support is connected with the near end of the humerus handle through a second screw, and the far end of the humerus handle is implanted into a humerus medullary cavity. The utility model has the advantages as follows: the round upright post with the dentate groove is arranged at the center of the near end of the shoulder-pelvis support, so that the stability of combination of the implanted shoulder joint prosthesis and the bone is enhanced. The glenoid head is of an adjustable eccentric structure, so that the formation of notches on the lower side of the scapula can be avoided, and the individual differentiation characteristic of the glenohumeral joint can be covered.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a trans-shoulder joint prosthesis.
Background
The trans-shoulder prosthesis is of great significance in treating rotator cuff joint injury, bony defect and revision reconstruction after primary shoulder joint replacement failure. The trans-shoulder joint prosthesis is generally designed in a modular mode, and the prosthesis design mode not only can effectively relieve pain of a patient, but also has the function of repairing the rotator cuff. However, due to the individual characteristics of shoulder joint differences, the design can cause corresponding complications in practical clinical application, and the clinical effect is influenced, and the design is mainly reflected in the following aspects: forming a lower side incisal mark of the scapula; instability and dislocation of the shoulder joint; fracture of scapula.
Although trans-shoulder replacement techniques are becoming mature, in most cases, modular shoulder prostheses require extensive effort by the surgeon and sophisticated aiming equipment to restore the patient's original shoulder height and anatomical angle. Therefore, the shoulder joint prosthesis with the modular design has higher requirements on the surgical technique and experience of an operator, and factors such as inaccurate assembly and positioning among components, complex operation of surgical instruments and the like influence the smooth operation of the shoulder joint replacement. Therefore, the design of the traditional trans-shoulder joint prosthesis is not beneficial to shortening the operation time of an operator and reducing the postoperative bleeding of a patient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a trans shoulder joint false body has solved among the prior art shoulder joint false body poor, can lead to the problem that multiple complication takes place in clinical application.
The technical scheme of the utility model is realized like this:
a trans-shoulder prosthesis comprising: the glenoid component comprises a glenoid support and a glenoid head, wherein a round upright post with a toothed groove is arranged in the center of the proximal end of the glenoid support, the glenoid head is of an adjustable eccentric structure, the proximal end of the glenoid support is connected with a scapula through a first titanium nail combination and a second titanium nail combination, and the distal end of the glenoid support is connected with the glenoid head through a first screw; the humerus component comprises a humerus pad, a humerus support and a humerus handle, a shoulder head and the humerus pad are matched to form an articular surface, the shoulder head can rotate in the humerus pad, the humerus pad is connected with the near end of the humerus support in an embedded mode, the far end of the humerus support is connected with the near end of the humerus handle through a second screw, and the far end of the humerus handle is implanted into a humerus medullary cavity.
Preferably, the humeral stem has a biconical configuration.
Preferably, a positioning column is arranged at the proximal end of the humerus handle, and the upper section of the positioning column is of a conical structure while the lower section of the positioning column is of a cylindrical structure.
Preferably, the distal end of the humerus support is provided with an anti-rotation bulge, the proximal end of the humerus handle is provided with a pin hole, and the anti-rotation bulge is in inserted fit with the pin hole.
Preferably, the surfaces of the head and the support of the shoulder cup, which are contacted with each other, are both planes.
The utility model has the advantages that:
through the round stand column with the dentate groove arranged at the center of the near end of the shoulder and pelvis support, the round stand column is inserted into the scapula when in use, so that the bone combination strength is improved, and the stability of the implanted shoulder joint prosthesis and the bone combination is enhanced.
By setting the head of the glenoid to be an adjustable eccentric structure, the formation of incisions on the lower side of the scapula can be avoided, individual differentiation characteristics of glenohumeral joints can be covered, anatomical reduction is formed, and the repair of complex anatomical structures, such as rheumatoid arthritis and trauma, is promoted.
The utility model discloses the installation location between each subassembly is more accurate reasonable, is favorable to trans-form shoulder joint replacement art to shorten the operation time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an assembly structure of the trans-shoulder joint prosthesis of the present invention;
FIG. 2 is a schematic view of the humeral stem of FIG. 1;
FIG. 3 is a schematic view of the humeral support of FIG. 1;
fig. 4 is a schematic view of the head of the shoulder in fig. 1.
In the figure:
1. the shoulder pelvis support comprises a shoulder pelvis head 2, a shoulder pelvis head 3, a first screw 4, a first titanium nail combination 5, a second titanium nail combination 6, a humerus pad 7, a humerus support 8, a humerus handle 9, a second screw 10, a positioning column 11, a rotation-preventing bulge 12, a pin hole 13 and a circular upright post.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As can be seen from the embodiments shown in fig. 1 to 4, the present invention provides a trans-shoulder prosthesis, comprising: the glenoid component comprises a glenoid support 1 and a glenoid head 2, a round upright column 13 with a toothed groove is arranged in the center of the near end of the glenoid support 1, the glenoid head 2 is of an adjustable eccentric structure, the near end of the glenoid support 1 is connected with a scapula through a first titanium nail combination 4 and a second titanium nail combination 5, and the far end of the glenoid support 1 is connected with the glenoid head 2 through a first screw 3; the humerus component comprises a humerus pad 6, a humerus support 7 and a humerus handle 8, the scapula head 2 and the humerus pad 6 are matched to form an articular surface, the scapula head 2 can rotate in the humerus pad 6, the humerus pad 6 is connected with the proximal end of the humerus support 7 in an embedded mode, the distal end of the humerus support 7 is connected with the proximal end of the humerus handle 8 through a second screw 9, and the distal end of the humerus handle 8 is implanted into a humerus medullary cavity.
The proximal end of the humerus pad 6 is a concave surface, and the distal end of the head 2 is a convex surface, which are engaged with each other to form an articular surface, so that the head 2 can rotate in the humerus pad 6. The humeral pad 6 is inserted into the proximal end of the humeral rest 7 to form a secure connection, preventing rotation and expulsion of the humeral pad 6 in the humeral rest 7.
The humerus handle 8 has a biconical surface structure. The structural design can ensure that the humerus bone is more firm and stable after being implanted into a proximal medullary cavity of a humerus.
The proximal end of the humerus handle 8 is provided with a positioning column 10, and the upper section of the positioning column 10 is of a conical structure and the lower section of the positioning column is of a cylindrical structure. Interference fit is realized through the cylindrical structure of reference column 10 hypomere, makes the prosthesis implant back firm more stable, reduces the intensity requirement to threaded connection.
The distal end of the humerus support 7 is provided with an anti-rotation bulge 11, the proximal end of the humerus handle 8 is provided with a pin hole 12, and the anti-rotation bulge 11 is in inserted fit with the pin hole 12. The design improves the assembly precision and simultaneously effectively prevents the relative rotation between the humeral support and the humeral handle.
The surfaces of the head 2 and the support 1 of the shoulder spittoon, which are contacted with each other, are both planes.
To sum up, trans-form shoulder joint prosthesis set up the circular stand 13 of taking the cusp slot through the near-end center that holds in the palm 1 at the glenoid, circular stand 13 inserts during the use in the scapula, improves bone bonding strength, strengthens the stability of implanting back shoulder joint prosthesis and bone bonding.
By arranging the glenoid head 2 into an adjustable eccentric structure, the formation of incisions on the lower side of the scapula can be avoided, individual differentiation characteristics of glenohumeral joints can be covered, anatomical reduction is formed, and the repair of complex anatomical structures, such as rheumatoid arthritis and trauma, is promoted.
The utility model discloses the installation location between each subassembly is more accurate reasonable, is favorable to trans-form shoulder joint replacement art to shorten the operation time.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A trans-shoulder prosthesis, comprising: the glenoid component comprises a glenoid support (1) and a glenoid head (2), a round upright post (13) with a toothed groove is arranged in the center of the near end of the glenoid support (1), the glenoid head (2) is of an adjustable eccentric structure, the near end of the glenoid support (1) is connected with a scapula through a first titanium nail combination (4) and a second titanium nail combination (5), and the far end of the glenoid support (1) is connected with the glenoid head (2) through a first screw (3); the humerus part comprises a humerus pad (6), a humerus support (7) and a humerus handle (8), the humerus head (2) is matched with the humerus pad (6) to form an articular surface, the humerus head (2) can rotate in the humerus pad (6), the humerus pad (6) is connected with the near end of the humerus support (7) in an embedded mode, the far end of the humerus support (7) is connected with the near end of the humerus handle (8) through a second screw (9), and the far end of the humerus handle (8) is implanted into a humerus medullary cavity.
2. Trans-shoulder joint prosthesis according to claim 1 characterized in that the humeral stem (8) is of biconical configuration.
3. Trans-shoulder prosthesis according to claim 1 characterized in that the proximal end of the humeral stem (8) is provided with a positioning post (10), the positioning post (10) having a conical configuration at the upper section and a cylindrical configuration at the lower section.
4. Trans-shoulder prosthesis according to claim 1 characterized in that the distal end of the humeral support (7) is provided with an anti-rotation protrusion (11) and the proximal end of the humeral stem (8) is provided with a pin hole (12), the anti-rotation protrusion (11) mating with the pin hole (12).
5. A trans-shoulder prosthesis according to claim 1 wherein the surfaces of the head (2) and the base (1) that meet are planar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089419.XU CN211271417U (en) | 2019-11-28 | 2019-11-28 | Trans-shoulder joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089419.XU CN211271417U (en) | 2019-11-28 | 2019-11-28 | Trans-shoulder joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211271417U true CN211271417U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922089419.XU Active CN211271417U (en) | 2019-11-28 | 2019-11-28 | Trans-shoulder joint prosthesis |
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| Country | Link |
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| CN (1) | CN211271417U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451180A (en) * | 2020-11-20 | 2021-03-09 | 中山大学肿瘤防治中心（中山大学附属肿瘤医院、中山大学肿瘤研究所） | Shoulder joint fused prosthesis |
| CN113332006A (en) * | 2021-06-24 | 2021-09-03 | 北京爱康宜诚医疗器材有限公司 | Shoulder joint prosthesis |
| WO2022225472A1 (en) * | 2021-04-19 | 2022-10-27 | Tipmed Tibbi̇ Medi̇kal Ürünler Sanayi̇ Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Reverse shoulder prosthesis system |
-
2019
- 2019-11-28 CN CN201922089419.XU patent/CN211271417U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451180A (en) * | 2020-11-20 | 2021-03-09 | 中山大学肿瘤防治中心（中山大学附属肿瘤医院、中山大学肿瘤研究所） | Shoulder joint fused prosthesis |
| WO2022225472A1 (en) * | 2021-04-19 | 2022-10-27 | Tipmed Tibbi̇ Medi̇kal Ürünler Sanayi̇ Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Reverse shoulder prosthesis system |
| CN113332006A (en) * | 2021-06-24 | 2021-09-03 | 北京爱康宜诚医疗器材有限公司 | Shoulder joint prosthesis |
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