Percutaneous ports with wire coils

• US 10,226,612 B2
• Filed: 10/07/2015
• Issued: 03/12/2019
• Est. Priority Date: 10/08/2014
• Status: Active Grant

• Current Assignee: Alfred E. Mann Foundation For Scientific Research
• Original Assignee: Alfred E. Mann Foundation For Scientific Research
• Inventors: Jiang, Guangqiang, He, Tom
• Primary Examiner(s): Price, Nathan R
• Assistant Examiner(s): Ulsh, Dung T
• Application Number:
  US14/877,865
• Publication Number:
  US 20160101275A1
• Time in Patent Office: 1,252 Days
• CPC Class Codes: A61M 2039/0258 for vascular access, e.g. blood stream access
• CPC Class Codes: A61M 2039/0261 Means for anchoring port to the body, or ports having a special shape or being made of a specific material to allow easy implantation/integration in the body
• 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

Abstract

The various implementations described herein include a percutaneous port for promoting tissue in-growth around the percutaneous port. In one aspect, the percutaneous port includes a tubular structure having an outer surface, and a coil having an outer surface and comprised of a plurality of loops. Furthermore, at least a portion of the outer surface of the coil is joined to the outer surface of the tubular structure.

Claims

1. An apparatus for promoting tissue in-growth around an opening that allows continuous access through skin, comprising:

a percutaneous port comprising;

a tubular structure having an outer surface that comprises a plated material; and

a continuous coil comprising;

a coil material that is chemically reactive with the plated material;

an outer surface; and

a plurality of loops,

wherein the outer surface of the continuous coil that is in contact with the tubular structure is joined to the outer surface of the tubular structure via the plated material.

2. The apparatus of claim 1, wherein a cross section of the tubular structure is circular, square, rectangular, or polygonal.

3. The apparatus of claim 1, wherein the continuous coil forms a spiral around the tubular structure.

4. The apparatus of claim 3, further comprising an additional coil having an outer surface and comprised of a plurality of loops, wherein the additional coil also forms a spiral around the tubular structure, wherein the plurality of loops of the continuous coil have a substantially larger diameter than the plurality of loops of the additional coil.

5. The apparatus of claim 4, wherein the spiral formed by the additional coil is interleaved with the spiral formed by the continuous coil.

6. The apparatus of claim 1, wherein after joining, at least some of the plurality of loops are oriented so as to form an angle with the outer surface of the tubular structure.

7. The apparatus of claim 1, wherein the at least a portion of the outer surface of the continuous coil is brazed to the outer surface of the tubular structure.

8. The apparatus of claim 1, wherein the continuous coil comprises a material selected from the group consisting of titanium and its alloys, nitinol, tungsten and its alloys, molybdenum and its alloys, niobium and its alloys, cobalt-chromium based alloys, noble metals and their alloys, and medical grade stainless steel.

9. The apparatus of claim 1, wherein the tubular structure is made from titanium.

10. The apparatus of claim 1, wherein the outer surface of the tubular structure is made from nickel.

11. The apparatus of claim 1, wherein successive loops of the plurality of loops are respectively oriented to form two or more distinct angles from a longitudinal axis of the outer surface of the tubular structure.

12. The apparatus of claim 4, wherein the additional coil is interleaved between at least some of the loops of the continuous coil.