Implantable connector

• US 7,534,127 B2
• Filed: 01/05/2005
• Issued: 05/19/2009
• Est. Priority Date: 01/05/2004
• Status: Expired due to Fees

• Current Assignee: Cochlear Limited
• Original Assignee: Cochlear Limited
• Inventors: Darley, Ian, Parker, John, Milojevic, Dusan
• Primary Examiner(s): Gushi; Ross N
• Application Number:
  US11/028,624
• Publication Number:
  US 20050165464A1
• Time in Patent Office: 1,595 Days
• Field of Search: 439/425, 439/426, 439/427, 439/444
• US Class Current: 439/425
• CPC Class Codes: A61N 1/3752 Details of casing-lead connections
• CPC Class Codes: H01R 2201/12 for medicine and surgery
• CPC Class Codes: Y10S 439/909 Medical use or attached to human body

Abstract

An implantable electrical connector is disclosed for use with implanted medical devices. Each part of the connector has an array of contacts which can mate, one part being a cutting contact and the other half a receiving contact. When mated, this forms a reliable electrical connection.

Claims

1. An implantable electrical connector comprising:

a first body portion having a plurality of first contacts;

a second body portion having a plurality of second contacts, wherein said first and second body portions are configured such that each said second contact is operatively aligned with a corresponding first contact when the first and second body portions are engaged with each other;

wherein each individual pair of corresponding first and second contacts comprises a penetrating contact and a receiving contact, said penetrating and receiving contacts configured to releasably inter-engage therebetween upon engagement between said first and second body portions,

and further wherein at least one of said first or second contacts is exposed to the environment prior to their engagement; and

a non-penetrating conducting portion disposed on said penetrating contact, wherein said penetrating contact is non-conducting.

2. The implantable connector of claim 1, wherein said first contacts are said penetrating contacts configured to at least partially penetrate said receiving contacts, and wherein and said second contacts are said receiving contacts configured to receive said penetrating contacts.

3. The implantable connector of claim 1, wherein said penetrating contacts are formed from a harder material than said receiving contacts.

4. The implantable connector of claim 1, wherein said receiving contacts are substantially surrounded by a resilient material.

5. The implantable connector of claim 1, wherein each of said penetrating contacts are sharpened to facilitate penetration into the corresponding receiving contact.

6. The implantable connector of claim 1, further comprising a silicone layer disposed over a portion of either said first or said second contacts.

7. The implantable connector of claim 1, further comprising a polyxylylene polymers layer disposed on either said first or said second contacts and configured to provide additional mechanical strength and electrical insulation.

8. The implantable connector of claim 1, further comprising an engagement element on at least one of said first and second body configured to retain the forced engagement between said first and second body portions.

9. The implantable connector of claim 1, further comprising an alignment element on at least one of said first and second body configured to align said first and second body portions prior to said forced engagement.

10. The implantable connector of claim 1, wherein said non-conducting penetrating contact comprises ceramic.

11. The implantable connector of claim 1, wherein each of the first and second contacts are made from a metal.

12. The implantable connector of claim 11, wherein said penetrating contacts are made from iridium.

13. The implantable connector of claim 12, wherein said receiving contacts are made from platinum.

14. An implantable hearing prosthesis, comprising:

a first component electrically connected to a first connector portion having a plurality of first contacts; and

a second component electrically connected to a second connector portion having a plurality of second contacts, wherein said first and second body portions are configured such that each said second contact is operatively aligned with a corresponding first contact when the first and second body portions are engaged with each other;

wherein each individual pair of corresponding first and second contacts comprise a penetrating contact and a receiving contact, said penetrating and receiving contacts configured to realeasably inter-engage therebetween upon engagement between said first and second components,

and further wherein at least one of said first or second contacts are exposed to the environment prior to their forced engagement.

15. The hearing prosthesis of claim 14, wherein said first contacts are said penetrating contacts and said second contacts are said receiving contacts.

16. The implantable hearing prosthesis of claim 14, wherein said penetrating contacts are formed from a harder material than said receiving contacts.

17. The implantable hearing prosthesis of claim 14, wherein said receiving contacts are substantially surrounded by a resilient material.

18. The implantable hearing prosthesis of claim 14, wherein some or all of said penetrating contacts are sharpened to facilitate penetration into the corresponding receiving contact.

19. The implantable hearing prosthesis of claim 14, wherein each of the first and second contacts are made from a metal.

20. The implantable hearing prosthesis of claim 19, wherein said penetrating contacts are made from iridium.

21. The implantable hearing prosthesis of claim 20, wherein said receiving contacts are made from platinum.

22. The implantable hearing prosthesis of claim 14, wherein the implantable hearing prosthesis is a cochlear implant.

23. The implantable hearing prosthesis of claim 22, wherein the first component is a stimulator unit, and the second component is an electrode array.

24. The implantable hearing prosthesis of claim 23, wherein the second contacts are the receiving contacts.

25. The implantable hearing prosthesis of claim 24, wherein the second connector portion is attached to or part of the second component.

26. A cochlear implant, comprising:

a first component electrically connected to a first connector portion having a plurality of first contacts; and

a second component electrically connected to a second connector portion having a plurality of second contacts, the second contacts being operatively alignable with corresponding ones of said first contacts;

wherein each individual pair of corresponding first and second contacts comprises a cutting contact and a receiving contact, to enable releasable inter-engagement and electrical connection therebetween, upon alignment of and forced engagement between said first and second connector components.

27. The cochlear implant of claim 26, wherein said first contacts are said penetrating contacts and said second contacts are said receiving contacts.

28. The cochlear implant of claim 26, wherein said penetrating contacts are formed from a harder material than said receiving contacts.

29. The cochlear implant of claim 26, wherein said receiving contacts are substantially surrounded by a resilient material.

30. The cochlear implant of claim 26, wherein some or all of said penetrating contacts are sharpened to facilitate penetration into the corresponding receiving contact.

31. The cochlear implant of claim 26, wherein each of the first and second contacts are made from a metal.

32. The cochlear implant of claim 31, wherein said penetrating contacts are made from iridium.

33. The cochlear implant of claim 32, wherein said receiving contacts are made from platinum.

34. The cochlear implant of claim 26, wherein the first component is a stimulator unit, and the second component is an electrode array.

35. The cochlear implant of claim 34, wherein the second contacts are the receiving contacts.

36. The cochlear implant of claim 35, wherein the second connector portion is attached to or part of the second component.