IP Library Granted Patent US 11,596,458
Granted Patent B2
US 11,596,458 · App. 17/091,701 · Granted Mar 7, 2023

Implant for bone fixation

Inventors: Matthias Esser (Freiburg, DE); Gheorghe Marton (Freiburg, DE); Eva Beutel (Freiburg, DE); Christian Knoepfle (Donaueschingen, DE); Manfred Schmuck (Muehlheim, DE); Karl Greiner (Muehlheim, DE)
Assignee: Stryker European Operations Holdings LLC
A61B17/823A61B17/8076A61B17/82A61B17/842A61B2017/00526A61B2090/037A61B2090/0807
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Quick Facts
Patent No.
US 11,596,458
App. No.
17/091,701
Granted
Mar 7, 2023
Kind
B2
Abstract

Disclosed herein is an implant for bone fixation comprising an elongated member configured to be wound around bone parts that are to be fixed, an engagement member coupled to the elongated member and configured to engage a portion of the elongated member so as to secure the implant in a loop around the bone parts, and a fastening member arranged between and coupled to the elongated member and the engagement member. The fastening member comprises at least two separate pieces each comprising one opening for receiving a bone fastener, wherein the separate pieces are coupled to each other by a material having a lower material strength than a material from which the separate pieces are made.

Claims (32)

1. An implant for bone fixation, comprising:

an elongated member configured to be wound around bone parts that are to be fixed;

an engagement member coupled to the elongated member and configured to engage a portion of the elongated member so as to secure the elongated member in a loop around the bone parts;

a fastening member coupled to the elongated member and the engagement member,

wherein the fastening member comprises at least two separate pieces coupled to one another each comprising at least one opening for receiving a bone fastener, and

wherein the separate pieces are coupled to each other by a material having a lower material strength than a material from which the separate pieces are made such that the material having the lower material strength is easier to cut in order to detach the implant after implantation.

2. The implant of claim 1 , wherein the separate pieces are substantially aligned with a longitudinal axis of the elongated member of the implant when the implant is in a straight, unwound state.

3. The implant of claim 1 , wherein the separate pieces are plates made from a metallic material.

4. The implant of claim 1 , wherein the material coupling the separated pieces to each other is a polymeric material.

5. The implant of claim 1 , further comprising:

at least one visual indicator in a region of lower material strength between the separate pieces.

6. The implant of claim 1 , wherein the fastening member is coupled to at least one of the elongated member and the engagement member by injection molding.

7. The implant of claim 6 , wherein the visual indicator is defined by a portion of the fastening member that remains exposed from injection molding.

8. The implant of claim 1 , wherein the elongated member has a bone-contacting surface and at least one first side extending substantially perpendicular to the bone-contacting surface and comprising a plurality of engagement features along a longitudinal extent of the at least one first side, and wherein the engagement member comprises at least one complementary deflectable engagement feature configured to engage at least one of the plurality of engagement features.

9. The implant of claim 8 , wherein the elongated member comprises a second side opposite to the first side, and wherein the engagement features of the elongated member are arranged on both sides of the elongated member.

10. The implant of claim 9 , wherein the elongated member comprises a lateral step that defines the first side, and wherein the engagement features of the elongated member are arranged within the lateral step.

11. The implant of claim 10 , wherein the engagement member comprises at least one shoulder engaging with the lateral step.

12. The implant of claim 11 , wherein the shoulder and the at least one complementary deflectable engagement feature are offset in a longitudinal extension of the engagement member.

13. The implant of claim 11 , wherein the shoulder is closer to the elongated member than the at least one complementary deflectable engagement feature.

14. The implant of claim 8 , wherein a groove on a surface opposite the bone-contacting surface extends in a direction substantially perpendicular to a longitudinal axis of the elongated member of the implant.

15. The implant of claim 8 , wherein a groove on a surface opposite the bone-contacting surface extends in a direction substantially perpendicular to a longitudinal axis of the elongated member of the implant between the engagement member and the fastening member and/or between the fastening member and the elongated member.

16. The implant of claim 1 , wherein the engagement member and the fastening member are arranged within a common plane in a straight, unwound state of the implant.

17. The implant of claim 16 , wherein the engagement member comprises at least one deflectable engagement feature that substantially lies within the common plane, and/or that is deflectable within a plane which is parallel or orthogonal to the bone-contacting surface of the implant in a straight, unwound state thereof.

18. An implant for bone fixation, comprising:

an elongated member configured to be wound around bone parts that are to be fixed;

an engagement member coupled to the elongated member and configured to engage a portion of the elongated member so as to secure the elongated member in a loop around the bone parts;

a fastening member coupled to the elongated member and the engagement member,

wherein the fastening member comprises at least two separate pieces coupled to one another each comprising at least one opening for receiving a bone fastener,

wherein the elongated member comprises a lateral step and engagement features of the elongated member are arranged along a sidewall defined by the lateral step, and

wherein the engagement member comprises at least one shoulder engaging the lateral step.

19. The implant of claim 18 , wherein the separate pieces are substantially aligned with a longitudinal axis of the elongated member of the implant when the implant is in a straight, unwound state.

20. The implant of claim 18 , wherein the elongated member has a bone-contacting surface and at least one first side extending substantially perpendicular to the bone-contacting surface and comprising a plurality of engagement features along a longitudinal extent of the at least one first side, and wherein the engagement member comprises at least one complementary deflectable engagement feature configured to engage at least one of the plurality of engagement features.

Assignments (5)
CHANGE OF ADDRESS Recorded Dec 18, 2024
From: STRYKER EUROPEAN OPERATIONS HOLDINGS LLC
To: STRYKER EUROPEAN OPERATIONS HOLDINGS LLC
Reel/Frame 069730/0754 →
NUNC PRO TUNC ASSIGNMENT Recorded Jul 23, 2021
From: STRYKER EUROPEAN HOLDINGS I, LLC
To: STRYKER EUROPEAN HOLDINGS III, LLC
Reel/Frame 056969/0771 →
CHANGE OF NAME Recorded Jul 23, 2021
From: STRYKER EUROPEAN HOLDINGS III, LLC
To: STRYKER EUROPEAN OPERATIONS HOLDINGS LLC
Reel/Frame 056969/0893 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 16, 2020
From: STRYKER LEIBINGER GMBH & CO. KG
To: STRYKER EUROPEAN HOLDINGS I, LLC
Reel/Frame 054428/0552 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2020
From: ESSER, MATTHIAS; MARTON, GHEORGHE; BEUTEL, EVA; KNOEPFLE, CHRISTIAN; SCHMUCK, MANFRED; GREINER, KARL
To: STRYKER LEIBINGER GMBH & CO. KG
Reel/Frame 054360/0859 →