JP-7855329-B2 - Devices and methods for reinforcing small articular surfaces

Inventors

• クリストファー・ニュートン
• ジェーソン・ブレイン
• グレゴリー・マーティン

Assignees

• スパイナル・エレメンツ・インコーポレーテッド

Dates

Publication Date

20260508

Application Date

20211028

Priority Date

20140509

Claims (20)

1. A small articular surface reinforcement device comprising a proximal surface, a distal surface, an anti-luminal surface extending between the proximal surface and the distal surface, and a lumen extending between the proximal surface and the distal surface, The small articular surface reinforcement device is positioned only on the outer surface facing the posterior side of the articular process and is configured not to come into contact with other articular processes that form the facet joint, the anti-luminal side of the small articular surface reinforcement device is cylindrical , and the purpose of the small articular surface reinforcement device is to provide reinforcement to the bone when a flexible clamping band is used to fix the facet joint. The flexible clamping band is fixed by fixing one end of the flexible clamping band to the opposite end of the flexible clamping band to form a continuous closed loop of the flexible clamping band, and the small joint surface reinforcement device is held within the continuous closed loop of the flexible clamping band.
2. The lumen is cylindrical, as described in claim 1, for the small joint surface reinforcement device.
3. The lumen is located in the center of the small articular surface reinforcement device according to claim 1.
4. The small articular surface reinforcement device according to claim 1, wherein the lumen includes a substantially smooth inner surface.
5. The small articular surface reinforcement device according to claim 1, wherein the lumen is configured to match the shape of the articular lumen formed in the articular process.
6. The lumen is smaller than the articular lumen lumen, as described in claim 5.
7. The small articular surface reinforcement device according to claim 5, wherein the lumen is larger than the articular lumen lumen.
8. The small articular surface reinforcement device according to claim 1, wherein at least one surface is malleable.
9. The small articular surface reinforcement device according to claim 1, wherein the small articular surface reinforcement device is used in conjunction with an implant configured to restore the space between the small articular surface of an articular process and an adjacent articular process.
10. The small articular surface reinforcement device according to claim 1, wherein at least a portion of one surface of the small articular surface reinforcement device includes a rough surface.
11. The small joint surface reinforcement device according to claim 10, wherein the roughened surface includes at least one projection.
12. The small joint surface reinforcement device according to claim 1, wherein at least a portion of one surface of the small joint surface reinforcement device is porous.
13. The small joint surface reinforcement device according to claim 1, wherein the small joint surface reinforcement device is used together with an adhesive or sealant.
14. The flexible clamping band is fixed by advancing the end of the flexible clamping band through a clamping mechanism located at the opposite end of the flexible clamping band, as described in claim 1.
15. The flexible clamping band comprises a gear configured to displace the ratchet of the flexible clamping band in only one direction, as described in claim 1, for the small joint surface reinforcement device.
16. A small articular surface reinforcement device including a proximal surface, a distal surface, an anti-luminal surface extending between the proximal and distal surfaces, and a lumen extending between the proximal and distal surfaces, A flexible clamping band, wherein the lumen is configured to receive the flexible clamping band, A kit that includes, The small articular surface reinforcement device is positioned only on the outer surface facing the posterior side of the articular process and is configured not to come into contact with other articular processes that form the facet joint. The side of the small articular surface reinforcement device that is not luminal is cylindrical . The purpose of the small articular surface reinforcement device is to reinforce the fixation of the flexible tightening band where it emerges from the articular process. The flexible clamping band is secured by fixing one end of the flexible clamping band to the opposite end of the flexible clamping band to form a continuous closed loop of the flexible clamping band, and the small articular surface reinforcement device is held within the continuous closed loop of the flexible clamping band, in a kit.
17. The kit according to claim 16, further comprising an implant.
18. The flexible clamping band comprises a ratchet and rack gear, according to claim 16.
19. The kit according to claim 16, wherein the flexible clamping band is secured by advancing its end through the clamping mechanism.
20. The kit according to claim 16, wherein at least a portion of one surface of the small joint surface reinforcement device is roughened or porous.

Description

This application is a continuation of U.S. Patent Application No. 14/274,575 filed on 9 May 2014, claiming priority under U.S. Provisional Patent Application No. 61/883,960 filed on 27 September 2013, the contents of which are incorporated herein by reference in whole. Some embodiments described herein generally relate to methods and implants for bone fusion, such as methods and implants for vertebral fusion by fixing the articular processes of vertebrae. Traumatic, inflammatory, and degenerative diseases of the spine can lead to severe pain and loss of mobility. One cause of back and spinal pain is related to degeneration or arthritis of the small articular surfaces of the spine. Bone contact or erosion at degenerated facet joint surfaces can contribute to several pain syndromes. While much technological progress has focused on artificial replacement or repair of intervertebral discs and their regeneration, little progress has been made in repairing small articular surfaces. Degeneration of facet joints and intervertebral discs often occurs simultaneously. Therefore, addressing the clinical problems arising from facet joint degeneration is necessary. The current standard treatment for degenerative problems associated with the facet joints is to fuse two adjacent vertebrae. This surgical procedure halts the relative movement between the two adjacent vertebrae, and therefore stops the movement of the articular surfaces and the resulting pain. The procedure of fusing two adjacent vertebrae often involves fixing and/or stabilizing the two adjacent vertebrae until they fuse. Furthermore, in cases of other bone injuries and/or surgical procedures, as well as injuries and/or surgical procedures affecting other bones, such as stabilizing the sternum after cardiac surgery or stabilizing ribs after fractures, it may be desirable to fix and/or stabilize the bone until the bone or bone segment can fuse. Current procedures for fixing and/or stabilizing adjacent vertebrae and/or other bones can be time-consuming and/or complex. U.S. Patent Application No. 12/859,009 King et al., “Mechanism of Spinal Injury Due to Caudocephalad Acceleration,” Orthop. Clin. North Am., 6:19, 1975. This is a lateral elevation view of a portion of the spine.This is a schematic diagram of the separated thoracic vertebrae.This is a schematic lateral view of a separated thoracic vertebra.This is a schematic posterior elevation view of a portion of the spine.This is a posterior oblique elevation view of a portion of the spine.This is a schematic lateral view of the facet joints within the cervical spine.This is a schematic diagram of the facet joints within the cervical spine.This is a schematic lateral view of the facet joints within the thoracic spine.This is a schematic diagram of the facet joints within the thoracic spine.This is a schematic lateral view of the facet joints within the lumbar spine.This is a schematic diagram of the facet joints within the lumbar spine.This is a block diagram of an implant according to one embodiment.This is a schematic diagram of one embodiment of an intervertebral joint implant including a disc.This is a schematic diagram of one embodiment of an intervertebral joint implant including a disc.This is a schematic diagram of the implant from Figure 7A that was transplanted into the facet joint.This is a schematic diagram of one embodiment of an intervertebral joint implant containing an octagonal disc.This is a schematic diagram of one embodiment of an intervertebral joint implant containing an octagonal disc.This is a schematic diagram of one embodiment of an intervertebral joint implant including a double-concave disc.This is a schematic diagram of one embodiment of an intervertebral joint implant including a double-concave disc.This is a schematic diagram of one embodiment of an intervertebral joint implant that includes a disc with a variable thickness on one side.This is a schematic diagram of one embodiment of an intervertebral joint implant that includes a disc with a variable thickness on one side.This is a schematic diagram of one embodiment of an intervertebral joint implant including a curved disc.This is a schematic diagram of one embodiment of an intervertebral joint implant including a curved disc.This is a schematic diagram of the implant from Figure 12A that was transplanted into the facet joint.This is a schematic diagram of one embodiment of an intervertebral joint implant including a disc having a rough surface on one side.This is a schematic diagram of one embodiment of an intervertebral joint implant including a disc having a rough surface on one side.This is a schematic diagram of one embodiment of an intervertebral joint implant, which includes a disc having a porous surface on one side.This is a schematic diagram of one embodiment of an intervertebral joint implant, which includes a disc having a porous surface on one side.This is a schematic diagram of one embodiment of an intervertebra