阅读说明：本技术 用于桥接骨缺损的植入物 (Implant for bridging a bone defect ) 是由 W·S·范德克 F·A·利波拉切 D·齐亚多茨 J·格罗斯曼 J·A·*** P·T·斯莱 于 2018-02-21 设计创作，主要内容包括：本文公开了各种模块化植入物和模块化植入物系统及其植入方法。该模块化植入物系统可以包括彼此堆叠以限定模块化植入物系统的模块化植入物,在一个实例中,所述模块化植入物系统可用于替换或增强骨骼中的空隙。该模块化植入物可以与髓内植入物相互作用以例如辅助融合过程。(Various modular implants and modular implant systems and methods of implanting the same are disclosed herein. The modular implant system can include modular implants stacked on one another to define a modular implant system that can be used, in one example, to replace or augment a void in a bone. The modular implant may interact with the intramedullary implant to assist in the fusion process, for example.)

1. A modular implant system, comprising:

a first modular implant component having opposing first and second surfaces and an inner core; and

a second modular implant component having opposing first and second surfaces and an inner core, wherein the first and second modular implant components are engageable and when engaged, the inner cores of the first and second modular implant components collectively define an inner core of the modular implant system having a shape corresponding to a shape of a portion of an intramedullary implant.

2. The modular implant system of claim 1, further comprising:

a third modular implant component having opposing first and second surfaces and an inner core; and

a fourth modular implant component having opposing first and second surfaces and an inner core, wherein the third modular implant component and the fourth modular implant component are engageable, and when engaged, the inner core portions of the third and fourth modular implant components together define an inner core of the modular implant system, the shape of the inner core corresponding to the shape of the portion of the intramedullary implant, and wherein the second surfaces of the third and fourth modular implant components are engageable with the second surfaces of the first and second modular implant components, such that the third implant component and the fourth implant component can be arranged in a stacked configuration on the first modular implant component and the second modular implant component.

3. The modular implant system of claim 2, wherein the first and second implant components have a first height, and the third and fourth implant components have a second height different from the first height.

4. The modular implant system of any of claims 2-3, wherein the second surface of the first modular implant component comprises a post and the first surface of the third modular implant component comprises a recess sized and shaped to receive the post.

5. The modular implant system of any of claims 1-4, wherein the inner core of the modular implant system is circular in shape.

6. The modular implant system of any of claims 1-4, wherein the first surface of either of the first and second modular implant components is at least partially comprised of a porous biocompatible material having a structure that mimics natural cancellous bone.

7. The modular implant system of claim 6, wherein the first surface of either of the first and second modular implant components is at least partially comprised of a substantially non-porous biocompatible material.

8. The modular implant system of any of claims 1-7, wherein the inner core of the modular implant system is comprised of a substantially non-porous biocompatible material.

9. The modular implant system of any of claims 1-7, wherein the first modular implant component comprises a first locking hole and the second modular implant component comprises a first hole, and wherein the first locking hole and the first hole align when the first modular implant component and the second modular implant component are engaged.

10. The modular implant system of claim 9, further comprising a fastener insertable through the first aperture and into the first locking aperture, the fastener configured to engage the first locking aperture and lockingly connect the first modular implant component to the second modular implant component.

11. A modular implant system according to any of claims 2-4 or claims 5-10 when dependent on claim 2, wherein the first modular implant component comprises a second hole and the third modular implant component comprises a first locking hole, and wherein the second hole and the first locking hole of the third modular implant component are aligned when the first modular implant component is stacked on the third modular implant component.

12. The modular implant system of claim 11, further comprising a fastener insertable through the second hole and into the first locking hole of the third modular implant component, the fastener configured to engage the first locking hole of the third modular implant component and lockingly connect the first modular implant component to the third modular implant component.

13. The modular implant system of any of claims 9-12, wherein the first locking hole of the first modular implant component and the first locking hole of the third modular implant component are threaded.

14. A method of implanting a modular implant system, comprising:

implanting an intramedullary implant having a shaft into a medullary canal of a bone of a patient;

positioning a first inner core of a first modular implant component around a first portion of the rod such that the first inner core substantially conforms to the first portion of the rod;

positioning a second inner core of a second modular implant component around a second portion of the rod such that the second inner core substantially conforms to the second portion of the rod; and

connecting the first modular implant component with the second modular implant component such that the first inner core portion and the second inner core portion together define an inner core that substantially conforms to at least a portion of the shaft of the intramedullary implant.

15. The method according to claim 14, wherein the positioning step occurs after the intramedullary implant is implanted into a medullary canal of the bone.

16. The method according to any one of claims 14-15, further comprising:

positioning a third inner core of a third modular implant component around a third portion of the rod such that the third inner core substantially conforms to the third portion of the rod;

positioning a fourth inner core of a fourth modular implant component around a fourth portion of the rod such that the fourth inner core substantially conforms to the fourth portion of the rod; and

connecting the third and fourth modular implant components with the first and second modular implant components, wherein the first and second modular implant components have a first height and the third and fourth modular implant components have a second height greater than the first height.

17. The method of claim 16, further comprising connecting the third modular implant component with the fourth modular implant component such that the third inner core and the fourth inner core collectively define an inner core that substantially conforms to at least a portion of the stem of the intramedullary implant.

18. The method of any of claims 14-17, further comprising locking the first modular implant component to the second modular implant component.

19. The method of any of claims 16-17, further comprising locking the third and fourth modular implant components to the first and second modular implant components.

20. The method of any of claims 16-17 and 19, further comprising stacking the first and second modular implant components on the third and fourth modular implant components.

Technical Field

The present disclosure relates to surgical implant systems, including implants, instruments, and methods for installing implants. In particular, the present disclosure relates to intramedullary devices, instruments, and bone augments for use therewith.

Background

Intramedullary implants are used in a variety of contexts, including for repairing bone fractures or to achieve joint fusion (i.e., arthrodesis). In the case of arthrodesis, it is often necessary to apply pressure to one (1) or more joints to bring adjacent bones of the joint into close proximity and then to fix the adjacent bones so that fusion can occur at the joint site. Intramedullary implants can be used to achieve fixation of the adjacent bones of the joint after compression and to fix the bones in place to allow fusion to occur.

In some cases, bone augmentation may also be used with intramedullary implants to replace and/or augment specific bones. This may be the case, for example, if the bone is diseased and/or the bone is somewhat traumatised and the bone needs to be replaced or enhanced. For example, U.S. patent No. 9,308,031 ("the' 031 patent") discloses various intramedullary devices for ankle fusion. The' 031 patent is hereby incorporated by reference herein, and in some cases referred to hereinafter. When bone reinforcements are used with intramedullary implants, it is desirable to ensure that the bone reinforcements mate with the intramedullary device and that proper bone growth and/or fusion occurs when the reinforcements are used.

The present disclosure provides intramedullary implants, instruments and methods that work in conjunction with bone enhancements to allow surgeons to perform surgical repair in a more efficient manner, as described in detail below.

Disclosure of Invention

To better illustrate the system disclosed herein, a series of non-limiting examples are provided herein:

Drawings

The above-mentioned and other features and advantages of this disclosure, and the manner of attaining them, will become more apparent and the disclosure itself will be better understood by reference to the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

fig. 1 is an exploded view of a modular implant system.

Fig. 2 is an assembly view of a portion of the modular implant system of fig. 1.

Fig. 3A is a side view of a first embodiment of a modular implant component.

Fig. 3B is a bottom perspective view and fig. 3C is a top perspective view of the modular implant component of fig. 3A.

Fig. 4A is a side view of a second embodiment of a modular implant component.

Fig. 4B is a bottom perspective view, fig. 4C is a top perspective view, and fig. 4D is an interior side view of the modular implant component of fig. 4A.

Fig. 5 is a rear view of an intramedullary implant and modular implant system implanted in a patient's ankle.

FIGS. 6A-B show respectively

And natural human cancellous bone.

Corresponding reference characters indicate corresponding parts throughout the several views. The embodiments set forth herein are illustrative of examples of the present disclosure and should not be construed as limiting the scope of the present disclosure in any way.

embodiment 1 comprises a modular implant system comprising: a first modular implant component having opposing first and second surfaces and an inner core; and a second modular implant component having opposing first and second surfaces and an inner core, wherein the first and second modular implant components are engageable and when engaged, the inner cores of the first and second modular implant components collectively define an inner core of the modular implant system having a shape corresponding to a shape of a portion of an intramedullary implant.

In embodiment 2, the system according to embodiment 1 optionally further comprises: a third modular implant component having opposing first and second surfaces and an inner core; and a fourth modular implant component having opposing first and second surfaces and an inner core, wherein the third modular implant component and the fourth modular implant component are engageable, and when engaged, the inner core portions of the third and fourth modular implant components together define an inner core of the modular implant system, the shape of the inner core corresponding to the shape of the portion of the intramedullary implant, and wherein the second surfaces of the third and fourth modular implant components are engageable with the second surfaces of the first and second modular implant components, such that the third implant component and the fourth implant component can be arranged in a stacked configuration on the first modular implant component and the second modular implant component.

In example 3, the first and second implant components of the system of example 2 optionally have a first height, and the third and fourth implant components may have a second height different from the first height.

In embodiment 4, the system of any one or any combination of embodiments 2-3 optionally comprising: the second surface of the first modular implant component has a post, and the first surface of the third modular implant component includes a recess sized and shaped to receive the post.

In embodiment 5, the system of any one or any combination of embodiments 1-4 optionally comprising: the inner core of the modular implant system is circular in shape.

In embodiment 6, the system of any one or any combination of embodiments 1-4 optionally comprising: the first surface of either of the first and second modular implant components is at least partially comprised of a porous biocompatible material having a structure that mimics natural cancellous bone.

In embodiment 7, the system according to embodiment 6 optionally comprises: the first surface of either of the first and second modular implant components is at least partially comprised of a substantially non-porous biocompatible material.

In embodiment 8, the system of any one or any combination of embodiments 1-7 optionally comprising: the inner core of the modular implant system is comprised of a biocompatible material that is substantially non-porous.

In embodiment 9, the system of any one or any combination of embodiments 1-7 optionally comprising: the first modular implant component comprises a first locking hole and the second modular implant component comprises a first hole, and wherein the first locking hole and the first hole align when the first modular implant component and the second modular implant component are engaged.

In example 10, the system of example 9 optionally further comprising a fastener insertable through the first aperture and into the first locking aperture, the fastener configured to engage the first locking aperture and lockingly connect the first modular implant component to the second modular implant component.

In embodiment 11, the system of any one or any combination of embodiments 2-4 or 5-10, when referring to embodiment 2, optionally comprising: the first modular implant component has a second hole, the third modular implant component has a first locking hole, and wherein the second hole and the first locking hole of the third modular implant component are aligned when the first modular implant component is stacked on the third modular implant component.

In example 12, the system of example 11 optionally further comprising a fastener insertable through the second hole and into the first locking hole of the third modular implant component, the fastener configured to engage the first locking hole of the third modular implant component and lockingly connect the first modular implant component to the third modular implant component.

In embodiment 13, the system of any one or any combination of embodiments 9-12 optionally comprising: the first locking hole of the first modular implant component and the first locking hole of the third modular implant component are threaded.