CN118021489B - A cartilage prosthesis - Google Patents

Abstract

The present invention provides a cartilage prosthesis, comprising: a main body, provided with a center hole, a center body inserted, and the center body is movably arranged in the center hole; the side wall of the main body is provided with a first adjustment groove and a second adjustment groove, and a first adjustment body and a second adjustment body are slidably arranged; the side wall of the main body is also provided with a first locking hole and a second locking hole, and a first locking nut and a second locking nut are respectively inserted; the side wall of the main body is also provided with an ejection hole and an eccentric hole, the ejection body is slidably arranged in the ejection hole, and the eccentric nut is inserted in the eccentric hole; a cap body is provided with a rod body perpendicular to the maximum cross-sectional plane of the cap body, and is inserted in the center body. Applying the technical solution of the present invention, the first adjustment body and the second adjustment body respectively adjust the horizontal position and the vertical position of the center body, and use the locking nut to lock it, so as to achieve the purpose of precise positioning of the cartilage prosthesis.

Description

A cartilage prosthesis

Technical Field

The invention patent relates to the field of medical device technology, specifically, to a cartilage prosthesis.

Background technique

The lubrication system of natural joints mainly includes articular cartilage as the core, and its components include articular surface, joint cavity and joint capsule. Articular cartilage is attached to the joint end, and its extremely elastic characteristics provide a good basis for joint lubrication. Articular cartilage injury is a common orthopedic disease, mostly caused by trauma, osteoarthritis, joint surgery, etc., and the main clinical manifestations are joint pain and functional impairment.

During the treatment process, cartilage prostheses provide a staged treatment method aimed at removing diseased cartilage. However, during the removal process, inaccurate positioning often leads to reciprocal removal and repeated implantation, causing further damage to the diseased site.

In view of the above problems, the present invention proposes a cartilage prosthesis with an adjustable positioning range, which can be accurately implanted after positioning, thereby solving the problem of inaccurate positioning during the implantation of the cartilage prosthesis.

Summary of the invention

The present invention provides a cartilage prosthesis to solve the problem of inaccurate positioning of the cartilage prosthesis in the related art.

The present invention provides a cartilage prosthesis, comprising: a main body, provided with a central hole, in which a central body is inserted, and the central body is movably arranged in the central hole; a side wall of the main body is provided with a first adjustment groove and a second adjustment groove, in which a first adjustment body and a second adjustment body are slidably arranged; the side wall of the main body is also provided with a first locking hole and a second locking hole, in which a first locking nut and a second locking nut are respectively inserted; the side wall of the main body is also provided with an ejection hole and an eccentric hole, in which the ejection body is slidably arranged, and the eccentric nut is inserted in the eccentric hole; a cap body, provided with a rod body perpendicular to the maximum cross-sectional plane of the cap body, and inserted in the central body.

Furthermore, the central body is also provided with a positioning hole, a first slide rail and a second slide rail, the first slide rail is perpendicular to the second slide rail but does not intersect, and the rod body is inserted into the positioning hole of the central body.

Furthermore, a first vertebral portion is provided at the lower end of the rod body, a locking groove is provided on the side wall of the rod body, a locking element is inserted into the locking groove, the locking element is arc-shaped, and a barb is provided at the bottom end.

Furthermore, the first adjusting body is provided with a first sliding hole, the second adjusting body is provided with a second sliding hole, the central body is slidably arranged in the first sliding hole and the second sliding hole, the first adjusting body slides in cooperation with the first slide rail, and the second adjusting body slides in cooperation with the second slide rail.

Furthermore, the first adjusting body is provided with a first threaded hole, which is threadedly matched with the first locking nut; the second adjusting body is provided with a second threaded hole, which is threadedly matched with the second locking nut.

Furthermore, the ejection body is provided with a second vertebral portion, which has an initial position where the vertebral top is parallel to the side wall of the main body and an extended position where the cone top protrudes from the side wall of the main body.

Furthermore, the ejector body is provided with an eccentric groove, which is rectangular and has an eccentric nut slidably arranged thereon.

Furthermore, the eccentric nut is provided with an eccentric portion, which is rotatably arranged in the eccentric groove. The eccentric portion is also provided with a locking portion, which abuts against the side wall of the eccentric groove.

Applying the technical solution of the present invention, a cartilage prosthesis includes: a main body, a center hole, an inserted center body, a first adjustment body and a second adjustment body respectively adjusting the lateral position and vertical position of the center body, and locking with a locking nut to achieve the purpose of precise positioning of the cartilage prosthesis.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

FIG1 shows an exploded schematic diagram of a cartilage prosthesis provided according to an embodiment of the present invention;

FIG2 shows a transverse cross-sectional view of a cartilage prosthesis provided according to an embodiment of the present invention;

FIG3 shows a vertical cross-sectional view of a cartilage prosthesis provided according to an embodiment of the present invention;

FIG4 shows an oblique cross-sectional view of a cartilage prosthesis provided according to an embodiment of the present invention;

FIG5 shows a schematic structural diagram of the main body in FIG1 ;

FIG6 shows a schematic structural diagram of the centrosome in FIG1 ;

FIG7 shows a schematic structural diagram of the cap body in FIG1 ;

FIG8 shows a schematic structural diagram of the first regulating body in FIG1 ;

FIG9 shows a schematic structural diagram of the second regulating body in FIG1 ;

FIG10 shows a schematic structural diagram of the ejector body in FIG1 ;

FIG. 11 shows a schematic structural diagram of the eccentric nut in FIG. 1 .

The above drawings include the following reference numerals:

10. Main body; 11. Center hole; 111. Center body; 1111. Positioning hole; 1112. First slide rail; 1113. Second slide rail; 12. First adjustment slot; 121. First adjustment body; 1211. First sliding hole; 1212. First threaded hole; 13. First locking hole; 131. First locking nut; 14. Second adjustment slot; 141. First adjustment body; 1411. Second sliding hole; 1412. Second threaded hole; 15. Second locking hole; 151. Second locking nut; 16. Ejection hole; 161. Ejection body; 1611. Second vertebral part; 1612. Eccentric slot; 17. Eccentric hole; 171. Eccentric nut; 1711. Eccentric part; 1712. Locking part;

20. Cap body; 21. Rod body; 211. First vertebral portion; 212. Locking groove; 213. Locking element; 2131. Barb.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

As shown in Figures 1 to 11, the present invention provides a cartilage prosthesis, including: a main body 10, provided with a center hole 11, inserted with a center body 111, and the center body 111 is movably arranged in the center hole 11; the side wall of the main body 10 is provided with a first adjustment groove 12 and a second adjustment groove 14, and a first adjustment body 121 and a second adjustment body 141 are slidably arranged; the side wall of the main body 10 is also provided with a first locking hole 13 and a second locking hole 15, in which a first locking nut 131 and a second locking nut 151 are respectively inserted; the side wall of the main body 10 is also provided with an ejection hole 16 and an eccentric hole 17, the ejection body 161 is slidably arranged in the ejection hole 16, and the eccentric nut 171 is inserted in the eccentric hole 17; the cap body 20 is provided with a rod body 21 perpendicular to the maximum cross-sectional plane of the cap body 20, and inserted in the center body 111.

Applying the technical solution of the present invention, a cartilage prosthesis includes: a main body 10, a central hole 11, an inserted central body 111, a first adjusting body 121 and a second adjusting body 141 for respectively adjusting the lateral position and vertical position of the central body 111, and a locking nut is used for locking to achieve the purpose of precise positioning of the cartilage prosthesis.

As shown in FIG. 6 , the central body 111 is further provided with a positioning hole 1111 , a first slide rail 1112 and a second slide rail 1113 . The first slide rail 1112 is perpendicular to but does not intersect with the second slide rail 1113 . The rod body 21 is inserted into the positioning hole 1111 of the central body 111 .

As shown in FIGS. 2 to 7 , a first vertebral portion 211 is provided at the lower end of the rod body 21 , a locking groove 212 is provided on the side wall of the rod body 21 , a locking element 213 is inserted into the locking groove 212 , and the locking element 213 is arc-shaped and has a barb 2131 at the bottom end.

Before assembly, the barb 2131 is retracted into the locking groove 212. During assembly, the locking element 213 is squeezed by the side wall of the positioning hole 1111, and the barb 2131 pops out to lock the device.

As shown in Figures 8 to 9, the first adjusting body 121 is provided with a first sliding hole 1211, the second adjusting body 141 is provided with a second sliding hole 1411, the central body 111 is slidably disposed in the first sliding hole 1211 and the second sliding hole 1411, the first adjusting body 121 slides in cooperation with the first sliding rail 1112, and the second adjusting body 141 slides in cooperation with the second sliding rail 1113.

As shown in FIGS. 8 and 9 , the first adjusting body 121 is provided with a first threaded hole 1212 for threaded cooperation with the first locking nut 131 ; the second adjusting body 141 is provided with a second threaded hole 1412 for threaded cooperation with the second locking nut 151 .

As shown in FIG. 10 , the ejector body 161 is provided with a second vertebral portion 1611 , which has an initial position where the vertebral top is parallel to the side wall of the main body 10 and an extended position where the vertebral top protrudes from the side wall of the main body 10 .

Particularly, the ejector body 161 is provided with an eccentric groove 1612 in a rectangular shape, and an eccentric nut 171 is slidably provided thereon.

As shown in FIG. 11 , the eccentric nut 171 is provided with an eccentric portion 1711 which is arc-shaped and rotatably disposed in the eccentric groove 1612 . The eccentric portion 1711 is also provided with a locking portion 1712 which is flat and abuts against the side wall of the eccentric groove 1612 .

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and/or combinations thereof.

In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (6)

1. A cartilage prosthesis, comprising: The main body (10) is provided with a central hole (11), into which a central body (111) is inserted. The central body (111) is movably arranged in the central hole (11). The central body (111) is also provided with a positioning hole (1111), a first slide rail (1112) and a second slide rail (1113). The first slide rail (1112) and the second slide rail (1113) are perpendicular but do not intersect. The rod body (21) is inserted in the positioning hole (1111) of the central body (111); The side wall of the main body (10) is provided with a first adjustment groove (12) and a second adjustment groove (14), and a first adjustment body (121) and a second adjustment body (141) are slidably provided thereon; the first adjustment body (121) is provided with a first sliding hole (1211), and the second adjustment body (141) is provided with a second sliding hole (1411); the central body (111) is slidably provided in the first sliding hole (1211) and the second sliding hole (1411); the first adjustment body (121) slides in cooperation with the first slide rail (1112), and the second adjustment body (141) slides in cooperation with the second slide rail (1113); The side wall of the main body (10) is further provided with a first locking hole (13) and a second locking hole (15), into which a first locking nut (131) and a second locking nut (151) are inserted respectively; The side wall of the main body (10) is further provided with an ejection hole (16) and an eccentric hole (17); the ejection body (161) is slidably disposed in the ejection hole (16), and the eccentric nut (171) is inserted in the eccentric hole (17); The cap body (20) is provided with a rod body (21) perpendicular to the maximum cross-sectional plane of the cap body (20) and inserted into the central body (111). 2. A cartilage prosthesis according to claim 1, characterized in that a first vertebral portion (211) is provided at the lower end of the rod body (21), a locking groove (212) is provided on the side wall of the rod body (21), a locking element (213) is inserted into the locking groove (212), the locking element (213) is arc-shaped, and a barb (2131) is provided at the bottom end. 3. A cartilage prosthesis according to claim 1, characterized in that the first adjusting body (121) is provided with a first threaded hole (1212) which is threadedly matched with the first locking nut (131); and the second adjusting body (141) is provided with a second threaded hole (1412) which is threadedly matched with the second locking nut (151). 4. A cartilage prosthesis according to claim 1, characterized in that the ejection body (161) is provided with a second vertebral portion (1611), having an initial position in which the vertebral top is parallel to the side wall of the main body (10) and an extended position in which the cone top protrudes from the side wall of the main body (10). 5. A cartilage prosthesis according to claim 1, characterized in that the ejection body (161) is provided with an eccentric groove (1612), is rectangular, and is slidably provided with an eccentric nut (171). 6. A cartilage prosthesis according to claim 1, characterized in that the eccentric nut (171) is provided with an eccentric portion (1711) rotatably disposed in the eccentric groove (1612), and the eccentric portion (1711) is further provided with a locking portion (1712) abutting against a side wall of the eccentric groove (1612).