Percutaneous biomedical devices with regenerative materials interface

• US 20090198184A1
• Filed: 02/05/2009
• Published: 08/06/2009
• Est. Priority Date: 02/05/2008
• Status: Abandoned Application

• Current Assignee: Board of Regents of the University of Michigan (University of Michigan)
• Original Assignee: Board of Regents of the University of Michigan (University of Michigan)
• Inventors: Martin, David C., Peramo, Antonio, Goldstein, Steven A.
• Application Number:
  US12/322,716
• Publication Number:
  US 20090198184A1
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61B 17/60 for external osteosynthesis, e.g. distractors, contractors
• CPC Class Codes: A61B 17/86 Pins or screws or threaded wires; nuts therefor A61B17/72 take precedence
• CPC Class Codes: A61F 2/2814 Bone stump caps
• CPC Class Codes: A61F 2/30749 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61M 2039/0264 with multiple inlets or multiple outlets
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053
• CPC Class Codes: A61M 39/16 having provision for disinfection or sterilisation A61M39/143 takes precedence; methods or apparatus for disinfection or sterilisation A61L2/00

Abstract

A percutaneous biomedical device comprising a body having a lumen extending longitudinally at least partially through the body, an implantable interface region disposed on the body, the implantable interface region having a plurality of radially extending conduits through the body, each of the conduits are in fluid communication with the lumen and in fluid communication with an exit port. The exit ports extrude a skin-interface composition between the subject'"'"'s skin and the percutaneous biomedical device. Methods for implanting a percutaneous biomedical device includes implanting a percutaneous biomedical device percutaneously in a subject and aligning the exit ports of the implantable interface region between the epidermis and the hypodermis skin layers of the subject.

Claims

1. A percutaneous biomedical device comprising a body having a lumen extending longitudinally at least partially through said body, an implantable interface region disposed along said body, said implantable interface region having a plurality of radially extending conduits through said body, each of said conduits in fluid communication with said lumen and in fluid communication with an exit port.

2. The percutaneous biomedical device of claim 1, wherein said lumen is a fluid reservoir for storing a skin-interface composition.

3. The percutaneous biomedical device of claim 1, wherein said exit port has a diameter ranging from about 0.1 mm to about 5.0 mm.

4. The percutaneous biomedical device of claim 1, wherein said exit ports are spaced circumferentially around said implantable interface region spaced equidistantly apart.

5. The percutaneous biomedical device of claim 1, wherein said exit ports are positioned on the percutaneous biomedical device such that when the percutaneous biomedical device is inserted through skin layers of a subject, said exit ports are positionable between a stratum corneum skin layer and a hypodermis skin layer of said subject.

6. The percutaneous biomedical device of claim 1 further comprising a reservoir fluidly connected to at least one of said lumen and said conduits, said reservoir operable to store a skin-interface composition.

7. The percutaneous biomedical device of claim 6, wherein said reservoir is fluidly connected to a pump operable to deliver said skin-interface composition from said reservoir to said at least one of said lumen and said conduits.

8. The percutaneous biomedical device of claim 7, wherein said pump delivers said skin-interface composition from said reservoir at a rate ranging from about 0.00015 μ

L/min to about 10.0 μ

L per min.

9. The percutaneous biomedical device of claim 1, wherein said biomedical device comprises a fixator pin, an orthopedic pin, a craniofacial pin, a rod, an orthopedic screw, an ear implant, a prosthetic limb frame, a prosthetic osseointegrated device, a catheter, a stent, a lead;

a wire or a tubular device.

10. The percutaneous biomedical device of claim 9, wherein the percutaneous biomedical device comprises a fixator pin, a rod, an orthopedic screw, a prosthetic limb frame or a prosthetic osseointegrated device.

11. The percutaneous biomedical device of claim 1, wherein said implantable interface region having a first diameter and a second diameter, said second diameter being smaller than said first diameter and said second diameter defining a circumferential depression with a plurality of exit ports.

12. A percutaneous biomedical device a body having a lumen extending longitudinally at least partially through said body, an implantable interface region disposed on said body, said implantable interface region comprising a plurality of radially extending conduits extending through said body, said conduits in fluid communication with said lumen, and wherein said implantable interface region having a first diameter and a second diameter, said second diameter being smaller than said first diameter and said second diameter defining a circumferential depression with a plurality of exit ports.

13. The percutaneous biomedical device of claim 12, wherein said plurality of exit ports in said circumferential depression is covered with a mesh.

14. The percutaneous biomedical device of claim 12, said implantable interface region having a plurality of circumferential depressions each with a plurality of exit ports.

15. The percutaneous biomedical device of claim 12, further comprising a reservoir in fluid communication with at least one of said lumen and said conduits, said reservoir operable to store a skin-interface composition, a pump in fluid communication with said reservoir and said lumen configured to deliver said skin interface composition to at least one of said plurality of exit ports, wherein said plurality of exit ports are positioned on the percutaneous biomedical device such that when the percutaneous biomedical device is inserted through skin layers of a subject, said exit ports are positionable between a stratum corneum skin layer and a hypodermis skin layer of said subject.

16. A method for implanting a percutaneous biomedical device comprising:

a. providing a percutaneous biomedical device comprising an implantable interface region and a lumen configured for receiving a fluid comprising a skin-interface composition, said implantable interface region comprising a plurality of radially extending conduits, said conduits in fluid communication with said lumen and with a plurality of exit ports;

b. implanting said percutaneous biomedical device in a tissue;

c. aligning said plurality of exit ports adjacent to a skin layer; and

d. extruding said skin-interface composition through said exit ports to contact said skin layer with said skin-interface composition.

17. The method for implanting a percutaneous biomedical device of claim 16, wherein aligning said plurality of exit ports adjacent to a skin layer comprises aligning said percutaneous biomedical device such that said plurality of exit ports are disposed adjacent skin layers selected from the group consisting of stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale, dermis, hypodermis and combinations thereof.

18. The method for implanting a percutaneous biomedical device of claim 16, wherein providing a percutaneous biomedical device further comprises providing a percutaneous biomedical device comprising an implantable interface region, and a lumen for receiving a fluid, said implantable interface region comprising a plurality of radially extending conduits in fluid communication with said lumen, and wherein said implantable interface region having a first diameter and a second diameter, said second diameter being smaller than said first diameter and said second diameter defining a circumferential depression with a plurality of exit ports.

19. The method for implanting a percutaneous biomedical device of claim 16, wherein implanting said percutaneous biomedical device in a tissue comprises implanting said percutaneous biomedical device in contact with a bone tissue.

20. The method for implanting a percutaneous biomedical device of claim 16, wherein implanting said percutaneous biomedical device in a tissue comprises implanting said percutaneous biomedical device in contact with a soft tissue selected from the group consisting of a vascular lumen, brain tissue, spinal cord, muscle, an organ and connective tissues in connection thereof.