Modular transdermal compress device

• US 10,327,922 B2
• Filed: 11/20/2017
• Issued: 06/25/2019
• Est. Priority Date: 04/25/2014
• Status: Active Grant

• Current Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Hershberger, Troy W., Porter, Joshua R.
• Primary Examiner(s): Snow, Bruce E
• Assistant Examiner(s): Hoban, Melissa A
• Application Number:
  US15/818,335
• Publication Number:
  US 20180071116A1
• Time in Patent Office: 582 Days
• CPC Class Codes: A61F 2/2814 Bone stump caps
• CPC Class Codes: A61F 2/78 Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
• CPC Class Codes: A61F 2002/30565 having spring elements
• CPC Class Codes: A61F 2002/30616 Sets comprising a plurality of prosthetic parts of different sizes or orientations
• CPC Class Codes: A61F 2002/7887 for connecting limb exoprostheses to the stump bone

Abstract

A modular transdermal assembly configured to couple an external prosthetic device to a bone stump. The assembly includes a modular transdermal portion and a bone fixator. The modular transdermal portion includes an interface portion configured to couple with the external prosthetic device. The bone fixator is configured to be secured to the bone stump and couple with the modular transdermal portion to retain the modular transdermal portion relative to the bone stump.

Claims

1. A modular transdermal assembly comprising:

a modular transdermal portion comprising;

a proximal end;

a distal end opposite the proximal end, the distal end couplable to an external prosthetic device; and

an outer tapered surface located between the proximal end and the distal end;

a bone fixator comprising;

a first end securable to a bone stump; and

a second end opposite the first end, the second end coupleable to the proximal end of the modular transdermal portion;

a coupling member including a roughened outer surface and an inner tapered surface located on an opposite side of the coupling member from the roughened outer surface, the inner tapered surface coupleable to the outer tapered surface of the modular transdermal portion; and

a modular skin integration component selectable from a plurality of modular skin integration components each having a different shape, the modular skin integration component coupleable to the roughened outer surface of the coupling member.

2. The modular transdermal assembly of claim 1, the modular skin integration component further comprising:

a center bore including a tapered surface to interface with the outer tapered surface of the modular transdermal portion.

3. The modular transdermal assembly of claim 2, wherein the center bore is tapered in the proximal to distal direction.

4. The modular transdermal assembly of claim 1, wherein the modular skin integration component is selectable to have a desired shape based on a patient'"'"'s anatomy.

5. The modular transdermal assembly of claim 1, the modular skin integration component further comprising:

a skin ingrowth surface disposed around at least a portion of a periphery of the modular skin integration component, the skin ingrowth surface configured to receive skin ingrowth therein.

6. A modular transdermal assembly comprising:

a modular transdermal portion comprising;

a proximal end;

a distal end couplable to an external prosthetic device; and

an outer tapered surface between the proximal end and the distal end;

a bone fixator comprising;

a first end securable to a bone stump; and

a second end coupleable to the proximal end of the modular transdermal portion; and

a coupling member including an outer surface and an inner tapered surface, the inner tapered surface complimentary to and coupleable to the outer tapered surface of the modular transdermal portion; and

a modular skin integration component coupleable to the outer surface of the coupling member to secure the modular skin integration component to the modular transdermal portion.

7. The modular transdermal assembly of claim 6, wherein the modular skin integration component is selectable from a plurality of modular skin integration components each having a different geometry.

8. The modular transdermal assembly of claim 6, the modular transdermal portion further comprising:

an interface portion located proximate the distal end and coupleable to the external prosthetic device, the outer tapered surface of the modular transdermal portion facing toy ward the distal end.

9. The modular transdermal assembly of claim 6, further comprising:

a skin ingrowth surface disposed around at least a portion of a periphery of the skin integration component, the skin ingrowth surface configured to receive skin ingrowth therein.

10. The modular transdermal assembly of claim 9, wherein the skin ingrowth surface is configured to permit skin growth therein in order to enhance fixation of the modular transdermal implant assembly to surrounding skin of the patient.

11. The modular transdermal assembly of claim 9, wherein the modular skin integration component is selectable from a plurality of modular skin integration components each having a different geometry, and wherein the skin ingrowth surface of each of the plurality of modular skin integration components comprises a suitable size or shape to accommodate the patient'"'"'s anatomy.

12. The modular transdermal assembly of claim 6, wherein the inner tapered surface of the coupling member is configured to face the proximal end of the modular transdermal portion, and wherein the modular skin integration component restrains distal movement of the modular transdermal portion.

13. The modular transdermal assembly of claim 6, the modular skin integration component further comprising:

a center bore including a tapered surface to interface with the outer tapered surface.

14. The modular transdermal assembly of claim 13, wherein the coupling member includes a roughened outer surface engageable with the skin ingrowth surface to facilitate retention of the coupling member within the center bore.