DEFORMABLE MEDICAL IMPLANT

• US 20100249712A1
• Filed: 03/27/2009
• Published: 09/30/2010
• Est. Priority Date: 03/27/2009
• Status: Active Grant

• Current Assignee: Marvao Medical Devices, Ltd.
• Original Assignee: Marvao Medical Devices, Ltd.
• Inventors: Davey, Christopher
• Granted Patent: US 8,617,116 B2
• Time in Patent Office: Days
• US Class Current: 604/175
• 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 an implantable subcutaneous port for anchoring a transcutaneous treatment component. The implantable subcutaneous port comprises a body portion and one or more frangible lines formed within the body portion. The body portion is adapted for receiving the transcutaneous treatment component beneath the point of entry into the physiology of a patient and routing the transcutaneous treatment component. The body portion is produced from a deformable material and has an area footprint and defines a support wall through which the transcutaneous treatment component enters the body portion. Fracturing the one or more frangible lines formed within the body portion enables removal of the body portion from the physiology of a patient through a transcutaneous opening defining an area of less than thirty percent of the area footprint of the body portion.

Claims

1. ) An implantable subcutaneous port for anchoring a transcutaneous treatment component, comprising:

a) a body portion for receiving the transcutaneous treatment component beneath the point of entry into the physiology of a patient and routing the transcutaneous treatment component, the body portion being produced from a deformable material and having an area footprint and defining an support wall through which the transcutaneous treatment component enters the body portion; and

b) one or more frangible lines formed within the body portion, the fracture of which enables the removal of the body portion from the physiology of the patient through a transcutaneous opening defining an area of less than thirty percent of the area footprint of the body portion.

3. ) The implantable subcutaneous port of claim 1 further comprising a tissue ingrowth skirt disposed on the body portion about the support wall for promoting ingrowth at least about the point of entry of the transcutaneous treatment component.

4. ) The implantable subcutaneous port of claim 1 wherein the transcutaneous opening is the point of entry of the transcutaneous treatment component.

5. ) The implantable subcutaneous port of claim 1 wherein the transcutaneous opening is an incision adjacent to the body portion.

6. ) The implantable subcutaneous port of claim 1 wherein the longest dimension of the transcutaneous opening is no more than 50 percent of the longest dimension of the major plane of the body portion.

7. ) The implantable subcutaneous port of claim 1 wherein the one or more frangible lines form a continuous path extending between the support wall and an outer perimeter of the body portion.

8. ) The implantable subcutaneous port of claim 7 wherein the continuous path forms a spiral.

9. ) The implantable subcutaneous port of claim 1 wherein the one or more frangible lines form one or more paths extending between the support wall and the outer perimeter of the body portion so that the body portion is sectioned by the one or more frangible lines into one or more removable pieces.

10. ) The implantable subcutaneous port of claim 1 wherein the body portion is dome shaped.

11. ) The implantable subcutaneous port of claim 10 wherein the one or more frangible lines form one or more closed circuitous paths in the major plane of the body portion thereby sectioning the body portion into two or more stacked sections.

12. ) The implantable subcutaneous port of claim 11 further comprising a gripping element disposed on one or more of the two or more stacked sections and extending within the area footprint of the body portion, wherein gripping the gripping element from a point external to the physiology of a patient and applying force outward from the major plane of the body portion results in fracturing the one or more frangible lines.

13. ) The implantable subcutaneous port of claim 1 wherein the body portion is substantially flat.

14. ) The implantable subcutaneous port of claim 13 wherein the one or more frangible lines form one or more closed circuitous paths in the major plane of the body portion thereby sectioning the body portion into two or more nested sections.

15. ) The implantable subcutaneous port of claim 11 further comprising a gripping element disposed on one or more of the two or more nested sections and extending within the area footprint of the body portion, wherein gripping the gripping element from a point external to the physiology of a patient and applying force outward from the major plane of the body portion results in fracturing the one or more frangible lines.

16. ) The implantable subcutaneous port of claim 1 wherein the one or more frangible lines form one or more paths across the major plane of the body portion 110, extending between two points on the outer perimeter and thereby sectioning the body portion 110 into two or more adjacent sections.

17. ) The implantable subcutaneous port of claim 16 wherein the one or more paths are non-intersecting.

18. ) The implantable subcutaneous port of claim 16 wherein the one or more paths intersect.

19. ) The implantable subcutaneous port of claim 1 wherein each of the one or more frangible lines has a pulling end and a terminal end.

20. ) The implantable subcutaneous port of claim 19 further comprising a gripping element disposed on the body portion adjacent the pulling end and extending within the area footprint of the body portion, wherein gripping the gripping element from a point external to the physiology of a patient and applying force outward from the major plane of the body portion results in fracturing the one or more frangible lines.

21. ) The implantable subcutaneous port of claim 19 further comprising a puncture point adjacent the pulling end for puncturing the body portion to initiate a tear along the one or more frangible lines.

22. ) The implantable subcutaneous port of claim 21 wherein the puncture point is a relatively thin section of the body portion.

23. ) The implantable subcutaneous port of claim 19 further comprising a notch adjacent the pulling end of each of the one or more frangible lines for assisting in propagating a fracture along each of the one or more frangible lines.

2. ) The implantable subcutaneous port of claim wherein the support wall is annular.

24. ) A method for removing a subcutaneous port for anchoring a transcutaneous treatment component, comprising:

a) removing the treatment component from the port and from a transcutaneous opening adjacent the port, wherein the port comprises

i) a body portion for receiving the transcutaneous treatment component beneath the point of entry into the physiology of a patient and routing the transcutaneous treatment component, the body portion being produced from a deformable material and having an area footprint and defining a support wall through which the transcutaneous treatment component enters the body portion; and

ii) one or more frangible lines formed within the body portion, the fracture of which enables the removal of the body portion from the physiology of the patient through a transcutaneous opening defining an area of less than thirty percent of the area footprint of the body portion;

b) inserting a retrieval implement through the transcutaneous opening;

c) grasping the body portion with the retrieval implement near the one or more frangible lines;

d) applying a force outward from the body portion so that the one or more frangible lines fracture, thereby sectioning the body portion into one or more pieces; and

e) pulling the one or more pieces of the body portion through the transcutaneous opening.

25. ) The method of claim 24 wherein the support wall is annular.

26. ) The method of claim 24, further comprising a step before step a) of creating a transcutaneous opening.

27. ) The method of claim 24 wherein the port further comprise a tissue ingrowth skirt disposed on the body portion about the support wall for promoting ingrowth at least about the point of entry of the transcutaneous treatment component.

28. ) The method of claim 27 further comprising a step between d) and e) of pulling the one or more pieces apart from the tissue ingrowth skirt, thereby leaving the tissue ingrowth skirt within the physiology of the patient.

29. ) The method of claim 24 wherein the transcutaneous opening is the point of entry of the transcutaneous treatment component.

30. ) The method of claim 24 wherein the transcutaneous opening is an incision adjacent to the body portion.

31. ) The implantable subcutaneous port of claim 24 wherein the longest dimension of the transcutaneous opening is no more than 50 percent of the longest dimension of the major plane of the body portion.

32. ) The method of claim 24 wherein the one or more frangible lines extend in a continuous path between the support wall and an outer perimeter of the body portion.

33. ) The method of claim 32 wherein the continuous path winds about the body portion in a spiral.

34. ) The method of claim 24 wherein the one or more frangible lines form one or more paths extending between the support wall and the outer perimeter of the body portion so that the body portion is sectioned by the one or more frangible lines into one or more removable pieces.

35. ) The implantable subcutaneous port of claim 34 wherein the one or more paths are non-intersecting.

36. ) The implantable subcutaneous port of claim 34 wherein the one or more paths intersect.

37. ) The method of claim 24 wherein the body portion is dome shaped.

38. ) The method of claim 37 wherein the one or more frangible lines form one or more closed circuitous paths in the major plane of the body portion thereby sectioning the body portion into two or more stacked sections.

40. ) The method of claim 24 wherein the body portion is substantially flat.

41. ) The method of claim 40 wherein the one or more frangible lines form one or more closed circuitous paths in the major plane of the body portion thereby sectioning the body portion into two or more nested sections.

42. ) The method of claim 41 further comprising a gripping element disposed on one or more of the two or more nested sections and extending within the area footprint of the body portion, wherein gripping the gripping element from a point external to the physiology of a patient and applying force outward from the major plane of the body portion results in fracturing the one or more frangible lines.

43. ) The method of claim 24 wherein each of the one or more frangible lines has a pulling end and a terminal end.

44. ) The method of claim 43 further comprising a gripping element disposed on the body portion adjacent to the pulling end and extending within the area footprint of the body portion, wherein gripping the gripping element from a point external to the physiology of a patient and applying force outward from the major plane of the body portion results in fracturing the one or more frangible lines.

45. ) The method of claim 43 further comprising a puncture point adjacent the pulling end for puncturing the body portion to initiate a tear along the one or more frangible lines.

46. ) The method of claim 45 wherein the puncture point is a relatively thin section of the body portion.

47. ) The method of claim 43 further comprising a notch adjacent the pulling end of each of the one or more frangible lines for assisting in propagating a fracture along each of the one or more frangible lines.

39. ) The method of claim 39 further comprising a gripping element disposed on one or more of the two or more stacked sections and extending within the area footprint of the body portion, wherein gripping the gripping element from a point external to the physiology of a patient and applying force outward from the major plane of the body portion results in fracturing the one or more frangible lines.

48. ) An implantable subcutaneous port for anchoring a transcutaneous treatment component, comprising:

a) a body portion for receiving the transcutaneous treatment component beneath the point of entry into the physiology of a patient and routing the transcutaneous treatment component, the body portion being produced from a deformable material and having an area footprint and defining an annular support wall;

b) at least one frangible line extending along a continuous path between an outer perimeter of the body portion and the annular support wall; and

c) at least one gripping element disposed on the body portion at a point adjacent to the least one frangible line,

i) wherein gripping the at least one gripping element from a point external to the body of a patient and applying force outward from the major plane of the body portion results in fracturing the at least one frangible line along the continuous path between outer perimeter of the body portion and the annular support wall, thereby enabling removal of the implanted catheter routing port from the body of the patient through a transcutaneous opening defining an area of less than thirty percent of the area footprint of the body portion.