Deformable medical implant

• US 10,272,236 B2
• Filed: 04/01/2016
• Issued: 04/30/2019
• Est. Priority Date: 03/27/2009
• Status: Active Grant

• Current Assignee: Marvao Medical Devices, Ltd.
• Original Assignee: Marvao Medical Devices, Ltd.
• Inventors: Davey, Christopher
• Primary Examiner(s): Hayman, Imani N
• Application Number:
  US15/088,409
• Publication Number:
  US 20160213909A1
• Time in Patent Office: 1,124 Days
• CPC Class Codes: A61B 17/50 Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body locating otherwise A61B5/06; locating by radiation A61B6/00; removing calculi A61B17/22; from the eyes A61F9/00709
• CPC Class Codes: A61M 2039/0223 having means for anchoring the subcutaneous access site
• CPC Class Codes: A61M 2039/0232 having means for facilitating the insertion into the body
• 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 2039/0273 for introducing catheters into the body
• CPC Class Codes: A61M 2039/0279 for introducing medical instruments into the body, e.g. endoscope, surgical tools
• CPC Class Codes: A61M 2039/0291 method or device for implanting it in the body
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276
• 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 present invention comprises a deformable, implantable subcutaneous port for anchoring a transcutaneous treatment component. A port body portion having a normal area port footprint is adapted by means of a port orifice for receiving and anchoring the transcutaneous treatment component beneath the point of entry into the physiology of a patient and for routing the transcutaneous treatment component. The port body portion is produced from a deformable material and has structure and/or composition that provides deformability characteristics of the port such that collapsing, folding, stretching, elongating and/or twisting the port body portion into a modified port shape having a reduced-size port profile enables removal of the port body portion from the physiology of a patient through a relatively small transcutaneous opening.

Claims

1. A deformable, implantable subcutaneous port for anchoring a transcutaneous treatment component comprising:

a port body portion for receiving the transcutaneous treatment component beneath a point of entry into the physiology of a patient and for routing the transcutaneous treatment component, the port body portion comprising a deformable material and/or having a deformable structure with a port perimeter that defines a normal area port footprint and also with a port orifice through which the transcutaneous treatment component enters the port body portion;

wherein the port body portion has a composition and/or structure that enables an implanted port to be collapsed, compressed, folded, stretched, elongated and/or twisted into a modified port shape having a reduced-size port profile whereby the port can be removed intact or piecemeal from the physiology of the patient through an opening that is substantially smaller than the normal area port footprint;

and further wherein the port comprises a frame or cage-like structure comprising interconnected structural members that define the port perimeter, the port orifice, and a port contour that extends between the port perimeter and the port orifice.

2. The deformable, implantable port according to claim 1 wherein the port body portion can be collapsed, compressed, folded, stretched, elongated and/or twisted into a reduced-size port profile whereby the port can be removed intact from an implantation site through a skin opening that is no larger than the size of an opening needed to accommodate the transcutaneous treatment component.

3. The deformable, implantable port according to claim 1 wherein the frame has an appropriate balance of port rigidity and springiness to gently support and cushion the tissue adjacent the implanted port.

4. The deformable, implantable port according to claim 1 wherein the port can be collapsed, compressed, folded, stretched, elongated and/or twisted into a reduced-size port profile whereby the port can be removed intact from an implantation site through an opening that is about 50% or less than the longest dimension of the port in use, or that has an area that is about 30% or less than the normal area port footprint, or both.

5. The deformable, implantable port according to claim 1 wherein the port comprises open spaces between the structural members.

6. The deformable, implantable port according to claim 1 wherein the spaces between the structural members that define the port contour comprise mesh, webbing or sheets of a deformable material that, because of its composition, its thickness, or both, is more pliable and deformable than the structural members.

7. The deformable, implantable port according to claim 6 wherein the mesh, webbing or sheets that span the spaces between the structural members comprise a different deformable material than the deformable material of the structural members.

8. The deformable, implantable port according to claim 6 wherein the mesh, webbing or sheets that span the spaces between the structural members comprise the same deformable material as the structural members but of a different thickness than the structural members.

9. The deformable, implantable port according to claim 6 further wherein mesh, webbing or a sheet of a deformable material with an orifice therethrough spans the space defined by the port perimeter member to comprise a port base surface.

10. The deformable, implantable port according to claim 1 wherein an upper surface of the port contour comprises or is covered by a tissue ingrowth material.

11. The deformable, implantable port according to claim 1 wherein the port is generally dome-shaped.

12. The deformable, implantable port according to claim 1 wherein the port is substantially flat.

13. The deformable, implantable port according to claim 1 wherein the port further comprises a gripping element disposed on the frame structure.