Drug eluting insert for implantable body

Patent metadata

Field	Value
Publication number	US-11511019-B2
Application number	US-201916665134-A
Country	US
Kind code	B2
Filing date	Oct 28, 2019
Priority date	Feb 16, 2012
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

The present application discloses embodiments related to an implant and a method of forming an implant configured to treat a fractured bone. The implant can include a body having a proximal end, a distal end, and an outer surface extending from the proximal end to the distal end, wherein the body defines a central axis extending from the proximal end to the distal end; and a high tensile strand positioned adjacent the body such that at least a portion of the strand extends at least partially along the outer surface of the body in a direction substantially parallel with the central axis, and wherein the strand is loaded with an active agent.

First claim

What is claimed:

1. A system for providing an anti-infective orthopedic implant comprising:
a plurality of high tensile strands, the plurality of strands containing one or more dissolved antibiotics, wherein the plurality of strands are configured to be affixed to a distal end of a main body of an orthopedic implant and extend longitudinally along an outermost surface of the main body of the orthopedic implant from the distal end; and,
a strand retention mechanism attachable to the orthopedic implant, wherein the strand retention mechanism is configured to space each high tensile strand of the plurality of high tensile strands from another high tensile strand of the plurality of high tensile strands along the outermost surface such that the strands are positioned between the outermost surface of the main body and a site of implantation.

2. The system of claim 1 , wherein each of the plurality of high tensile strands comprise a monofilament core.

3. The system of claim 2 , further comprising a coating layer around the core.

4. The system of claim 3 , wherein the one or more dissolved antibiotics are dissolved in the coating layer.

5. The system of claim 1 , wherein each of the plurality of high tensile strands comprise a multifilament core.

6. The system of claim 5 , further comprising a coating layer around the core.

7. The system of claim 6 , wherein the one or more dissolved antibiotics are dissolved in the coating layer.

8. The system of claim 1 , wherein the plurality of high tensile strands have a tensile strength sufficient to withstand shearing forces during implantation of the orthopedic implant into a medullary canal of a bone.

9. The system of claim 1 , wherein the plurality of high tensile strands are configured to be in contact with and slidable against a wall of a medullary canal.

10. The system of claim 1 , wherein the strand retention mechanism comprises a cap configured to be affixed to the distal end of the orthopedic implant, and wherein the cap is configured to secure the plurality of high tensile strands to the orthopedic implant.

11. The system of claim 1 , wherein the strand retention mechanism comprises a ring member, the ring member comprising a plurality of strand securing elements configured to slidably receive the plurality of high tensile strands.

12. The system of claim 11 , wherein the plurality of strand securing elements comprise notches extending through the ring member.

13. The system of claim 11 , wherein the plurality of strand securing elements comprise bores extending through the ring member.

14. The system of claim 11 , wherein the plurality of strand securing elements comprise flanges defining a hole.

15. The system of claim 11 , wherein the ring member comprises an inner surface defining a ring member bore, the ring member bore having a shape complimentary to the outermost surface of the orthopedic implant such that upon engagement, the ring member is slidable along the outermost surface of the orthopedic implant.

Assignees

• Depuy Synthes Products Inc

Inventors

• Armbruster David
• Adlon Lumme Katlin
• Chomyn Jeffrey
• Yu aaron

Classifications

• Y10T29/49826

  Assembling or joining · CPC title

• A61L2430/02

  for reconstruction of bones; weight-bearing implants · CPC title

• A61B17/80

  Cortical plates {, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates} · CPC title

• A61B17/72 Primary

  Intramedullary devices, e.g. pins or nails · CPC title

• A61L2300/406

  Antibiotics · CPC title