Bone implant with means for multi directional force and means of insertion

Patent metadata

Field	Value
Publication number	US-11284887-B2
Application number	US-202117359284-A
Country	US
Kind code	B2
Filing date	Jun 25, 2021
Priority date	Jul 10, 2014
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

An assembly used in osteosynthesis comprising a delivery instrument in combination with an implant wherein the delivery instrument releasably holds the implant in a first configuration prior to attachment of the implant to bone. The delivery instrument allows the implant to be affixed to bone before the implant is released from the instrument. And the instrument may comprise guide means for drills, depth gauges, screws, pins, pegs, blades and or drivers which are used or implanted when the implant is releasably attached to the instrument. After the implant is affixed to bone and released from the delivery instrument, the implant assumes at least a second configuration which provides compression and or distraction and or control of spatial orientation.

First claim

What is claimed is:

1. A fixation system configured to apply a force across first and second tissue segments, wherein the first tissue segment is a first bone segment or a first soft tissue segment, wherein the second tissue segment is a second bone segment or a second soft tissue segment, the tissue fixation system comprising:
an implant comprising a bridge member, a first tissue-engaging member, and a second tissue-engaging member, wherein the first tissue-engaging member extends straight along an axis from a first end of the bridge member, wherein the second tissue-engaging member extends straight along an axis from a second end of the bridge member opposite the first end of the bridge member, wherein the first tissue-engaging member comprises a first inserter-engaging feature, wherein the second tissue-engaging member comprises a second inserter-engaging feature, wherein the implant is transformable between a free-state configuration and an insertion configuration, wherein transforming the implant between the free-state configuration and the insertion configuration causes a change in a relative position of the first tissue-engaging member to the bridge member; and
an inserter connectable to the implant, comprising a first implant-engaging feature oriented to connect to the implant by engaging the first inserter-engaging feature, a second implant-engaging feature spaced and oriented relative to the first implant-engaging feature to connect to the implant by engaging the second inserter-engaging feature, and a third implant-engaging feature spaced and oriented relative to the first implant-engaging feature and the second implant-engaging feature to engage the implant by contacting only a top surface of the bridge member, the third implant-engaging feature being movable relative to the first implant-engaging feature and the second implant-engaging feature, wherein the first implant-engaging feature and the second implant-engaging feature are configured to aid in transformation of the implant between the free-state configuration and the insertion configuration, wherein the inserter is configured to maintain the implant in the insertion configuration after transformation between the free-state configuration and the insertion configuration, such that a user is not required to exert a force on the first and second implant-engaging features to maintain the implant in the insertion configuration, and the first and second implant-engaging features are configured to not contact an exterior surface of the bone below a bottom surface of the bridge member so as to not interfere with final seating of the implant in its final implanted position.

2. The fixation system of claim 1 , wherein the first inserter-engaging feature is an internal feature of the first tissue-engaging member.

3. The fixation system of claim 2 , wherein the first inserter-engaging feature is positioned on an interior of the first tissue-engaging member.

4. The fixation system of claim 1 , wherein the first tissue-engaging member comprises a first plurality of teeth extending along an exterior surface of the first tissue-engaging member and the second tissue-engaging member comprises a second plurality of teeth extending along an exterior surface of the second tissue-engaging member.

5. The fixation system of claim 1 , wherein the first implant-engaging feature and the second implant-engaging feature are configured to disengage from the first inserter-engaging feature and the second inserter-engaging feature while the first tissue-engaging member is positioned within the first tissue segment and the second tissue-engaging member is positioned within the second tissue segment so that the first tissue-engaging member and the second tissue-engaging member are configured to apply a converging force across the first and second tissue segments.

6. The fixation system of claim 1 , wherein the inserter comprises a body and a handle, the handle being movable relative to the body.

7. The fixation system of claim 6 , wherein the handle is configured to cause the third implant-engaging feature to move relative to the first implant-engaging feature and the second implant-engaging feature.

8. The fixation system of claim 6 , further comprising a locking means configured to secure the handle relative to the body.

9. A fixation system configured to apply a force across first and second tissue segments, wherein the first tissue segment is a first bone segment or a first soft tissue segment, wherein the second tissue segment is a second bone segment or a second soft tissue segment, the tissue fixation system comprising:
an implant comprising a bridge member, a first tissue-engaging member, and a second tissue-engaging member, wherein the first tissue-engaging member extends along from a first end of the bridge member, wherein the second tissue-engaging member extends from a second end of the bridge member opposite the first end of the bridge member, wherein the first tissue-engaging member comprises a first inserter-engaging feature, wherein the second tissue-engaging member comprises a second inserter-engaging feature, wherein the implant is transformable between a free-state configuration and an insertion configuration, wherein transforming the implant between the free-state configuration and the insertion configuration causes a change in a relative position of the first tissue-engaging member to the bridge member; and
an inserter connectable to the implant, comprising a first implant-engaging feature oriented to connect to the implant by engaging the first inserter-engaging feature, a second implant-engaging feature spaced and oriented relative to the first implant-engaging feature to connect to the implant by engaging the second inserter-engaging feature, and a third implant-engaging feature spaced and oriented relative to the first implant-engaging feature and the second implant-engaging feature to engage the implant by contacting the bridge member, the third implant-engaging feature being movable relative to the first implant-engaging feature and the second implant-engaging feature, wherein the first implant-engaging feature and the second implant-engaging feature are configured to aid in transformation of the implant between the free-state configuration and the insertion configuration, wherein the inserter is configured to maintain the implant in the insertion configuration after transformation between the free-state configuration and the insertion configuration, such that a user is not required to exert a force on the first and second implant-engaging features to maintain the implant in the insertion configuration, and the first and second implant-engaging features are configured to not contact an exterior surface of the bone below a bottom surface of the bridge member so as to not interfere with final seating of the implant in its final implanted position;
wherein the inserter comprises a body and a handle, the handle being movable relative to the body; and
wherein the inserter comprises a carrier configured to removably couple to the body of the inserter, wherein the carrier comprises the first implant-engaging feature and the second implant-engaging feature.

10. The fixation system of claim 9 , wherein the handle is configured to move relative to the body to disengage the first implant-engaging feature and the second implant-engaging feature from the first tissue-engaging member and the second tissue-engaging member.

11. A fixation system configured to apply a force across first and second bone segments, the bone fixation system comprising:
a staple comprising a bridge, a first leg, and a second leg, wherein the first leg extends straight along an axis from a fir

Assignees

• Crossroads Extremity Systems Llc

Inventors

• Hartdegen Vernon R
• Hollis Michael Chad
• Coleman Glen
• Sayger Daniel

Classifications

• A61B2017/0645

  being elastically deformed for insertion · CPC title

• A61B17/809

  with bone-penetrating elements, e.g. blades or prongs (bone staples A61B17/0642; intramedullary nails with a plate at an end A61B17/7233) · CPC title

• A61F2/0811

  Fixation devices for tendons or ligaments · CPC title

• A61B17/8863

  Apparatus for shaping or cutting osteosynthesis equipment by medical personnel · CPC title

• A61B17/808

  Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms · CPC title