CN216724892U - Shoulder joint prosthesis assembling component for surface replacement - Google Patents
Shoulder joint prosthesis assembling component for surface replacement Download PDFInfo
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- CN216724892U CN216724892U CN202122772589.5U CN202122772589U CN216724892U CN 216724892 U CN216724892 U CN 216724892U CN 202122772589 U CN202122772589 U CN 202122772589U CN 216724892 U CN216724892 U CN 216724892U
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- bone fracture
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Abstract
The utility model provides a shoulder joint prosthesis assembly for surface replacement, include: the humerus head prosthesis is covered on the surface of the proximal humerus, the broach prosthesis is used for being implanted into the medullary cavity of the proximal humerus, a hollow locking screw, a bone fracture plate and a plurality of locking screws, and the broach prosthesis is integrally connected with the concave surface of the humerus head prosthesis; the bone fracture plate is provided with a first screw hole for the hollow locking screw to pass through, and the hollow locking screw passes through the first screw hole and enters the broach prosthesis to connect the bone fracture plate and the broach prosthesis; and the upper end and the lower end of the osteotomy plate, which are positioned at the first screw hole, are respectively provided with a second screw hole. The advantages are that: the bone fracture plate has the advantages that the surface shoulder joint can be guaranteed to have good stability, the wound condition can be treated, the bone fracture plate has an anatomical form and a plurality of holes, the surface shoulder does not have strong holding force, and the bone fracture plate can play a role of reverse tensioning.
Description
Technical Field
The utility model belongs to the technical field of energy storage system technique and specifically relates to a shoulder joint false body assembly spare for surface replacement.
Background
In the existing surface shoulder joint prosthesis, a bone cement type broach is suitable for patients with osteoporosis, and a biological type broach is suitable for patients with good bone, but as an initial replacement operation, the bone cement type prosthesis is not suitable, and bone cement in a medullary cavity is not easy to clean in a revision operation; and after the biotype broach is implanted into the medullary cavity, the proximal humerus cortical bone layer can be firmly combined with titanium powder, but the growth effect of the cancellous bone titanium powder on the lower layer is not very good, and then the lower layer is basically in a hollow state, and the later stability is only contacted by the proximal cortical bone layer.
At present, in the operation, after the prosthesis is installed, knocking still has the loosening sign, and if the prosthesis is directly reset, the face and shoulder joints have a higher probability of falling off.
SUMMERY OF THE UTILITY MODEL
The utility model provides a shoulder joint false body assembly spare for surface replacement, the purpose is overcome above-mentioned a technical defect at least, reduces design and process cost, the accurate installation of being convenient for.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a shoulder prosthesis assembly for resurfacing comprising: the humerus head prosthesis is covered on the surface of the proximal humerus, the broach prosthesis is used for being implanted into the medullary cavity of the proximal humerus, a hollow locking screw, a bone fracture plate and a plurality of locking screws, and the broach prosthesis is integrally connected with the concave surface of the humerus head prosthesis;
the bone fracture plate is provided with a first screw hole for the hollow locking screw to pass through, and the hollow locking screw passes through the first screw hole and enters the broach prosthesis to connect the bone fracture plate and the broach prosthesis; and the upper end and the lower end of the first screw hole on the osteotomy plate are respectively provided with a second screw hole for the locking screw to pass through so as to fix the bone fracture plate.
Preferably, the number two screw holes of the bone plate located below the number one screw hole are one.
Preferably, the number two of the screw holes above the number one of the screw holes on the bone plate is two.
Preferably, the second screw hole is a universal locking hole.
The utility model discloses a shoulder joint false body assembly spare for surface replacement, its advantage is: in the utility model, the humerus head prosthesis, the medullary needle prosthesis, the bone fracture plate and other structures are assembled and used, and the respective special structures ensure that the humerus head is tightly attached to the surface of the proximal end of the humerus, thereby preventing the humerus head from falling off in the later period, being convenient for operation and having good effect;
additionally, the utility model discloses the assembly subassembly both can guarantee that the surface shoulder joint has fine stability, can handle the wound condition again, and the coaptation board has the anatomical form to there are a plurality of holes, surface shoulder self does not have very strong holding power, and the coaptation board can play reverse taut effect, and old patient can be used for a long time.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a shoulder joint prosthesis assembly for resurfacing use according to the present invention;
FIG. 2 is a schematic view of the bone plate;
FIG. 3 is a schematic structural view of a locking screw;
FIG. 4 is a schematic structural view of a cannulated locking screw;
wherein:
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second", "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In order to solve the disadvantage of insufficient firmness of the implantation of the broach prosthesis, according to fig. 1-4, the present invention provides a shoulder joint prosthesis assembly for resurfacing, comprising: the humerus head prosthesis comprises a humerus head prosthesis 1 covering the surface of the proximal humerus, a broach prosthesis 2 used for implanting a medullary cavity of the proximal humerus, a hollow locking screw 3, a bone fracture plate 4 and a plurality of locking screws 5, wherein the broach prosthesis 2 is integrally connected with the concave surface of the humerus head prosthesis 1; a first screw hole 41 for the hollow locking screw 3 to pass through is formed in the bone plate 4, and the hollow locking screw 3 passes through the first screw hole 41 and enters the broach prosthesis 2 to connect the bone plate 4 and the broach prosthesis 2; the upper end and the lower end of the first screw hole 41 on the osteotomy plate are respectively provided with a second screw hole 42 for the locking screw 5 to pass through to fix the bone plate 4. When in use, the hollow locking screw 3 is a reverse tensioning screw, and is in threaded connection with the humerus head prosthesis 1 by matching with the bone fracture plate 4, so that the humerus head prosthesis 1 is firmly pressed on the surface of the proximal humerus end, and the risk of falling off of the surgical humerus head prosthesis 1 is reduced.
In a specific embodiment, the number two screw holes 42 of the bone plate 4 below the number one screw hole 41 are one; two second screw holes 42 are formed in the bone plate 4 and are positioned above the first screw hole 41; furthermore, the second screw hole 42 is a universal locking hole, and different nail feeding directions can be selected according to different fracture conditions. The locking screw 5 is a universal locking screw 5 and the universal locking screw 5 may also be used to increase the holding force for locking the bone plate 4 during use, if no fracture occurs.
In this solution, the locking screw 5 may be a 3.5 locking screw and the cannulated locking screw may be a 5.0 cannulated locking screw.
The utility model discloses a realize like this:
firstly, the proximal humerus 7 is perforated and positioned by using the Kirschner wire 6, and the surface shoulder joint covers the surface of the proximal humerus 7 along the positioning direction of the Kirschner wire 6. Placing the bone fracture plate 4 according to the position of a guide pin, drilling a hole by using a hollow drill along the direction of the guide pin, screwing in by using the hollow locking screw 3, locking on the bone fracture plate 4, selecting the screw feeding direction of the universal locking bone fracture screw according to the fracture condition, finally screwing down by using a torque wrench, and taking out the Kirschner wire 6.
After the hollow locking screw 3 is connected with the humerus head prosthesis 1, a downward pulling force is applied, so that the humerus head prosthesis 1 is tightly attached to the surface of the proximal humerus 7, and the humerus head prosthesis 1 is prevented from falling off in the later period.
If the patient has a good bone, the prosthesis can be directly replaced without being matched with the bone plate 4.
If the bone of the patient is better, the prosthesis can be directly replaced without being matched with the bone fracture plate.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A shoulder prosthesis mounting assembly for resurfacing, characterized by: the humerus head prosthesis comprises a humerus head prosthesis (1) covering the surface of the proximal humerus, a broach prosthesis (2) used for implanting a medullary cavity of the proximal humerus, a hollow locking screw (3), a bone fracture plate (4) and a plurality of locking screws (5), wherein the broach prosthesis (2) is integrally connected with the concave surface of the humerus head prosthesis (1);
the bone plate (4) is provided with a first screw hole (41) for the hollow locking screw (3) to pass through, and the hollow locking screw (3) passes through the first screw hole (41) to enter the broach prosthesis (2) so as to connect the bone plate (4) and the broach prosthesis (2); and the upper end and the lower end of the first screw hole (41) on the osteotomy plate are respectively provided with a second screw hole (42) for the locking screw (5) to pass through to fix the bone fracture plate (4).
2. A shoulder prosthesis mounting assembly for resurfacing according to claim 1, wherein: the number two screw holes (42) below the number one screw hole (41) on the bone plate (4) are one.
3. A shoulder prosthesis mounting assembly for resurfacing according to claim 1, wherein: the number of the second screw holes (42) which are positioned above the first screw hole (41) on the bone plate (4) is two.
4. A shoulder prosthesis mounting assembly for resurfacing according to claim 2 or 3, wherein: the second screw hole (42) is a universal locking hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122772589.5U CN216724892U (en) | 2021-11-12 | 2021-11-12 | Shoulder joint prosthesis assembling component for surface replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122772589.5U CN216724892U (en) | 2021-11-12 | 2021-11-12 | Shoulder joint prosthesis assembling component for surface replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216724892U true CN216724892U (en) | 2022-06-14 |
Family
ID=81925968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122772589.5U Active CN216724892U (en) | 2021-11-12 | 2021-11-12 | Shoulder joint prosthesis assembling component for surface replacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216724892U (en) |
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2021
- 2021-11-12 CN CN202122772589.5U patent/CN216724892U/en active Active
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