Medical devices including connector enclosures with an integrated conductor feed-through

• US 9,138,588 B2
• Filed: 12/19/2011
• Issued: 09/22/2015
• Est. Priority Date: 12/28/2010
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Deininger, Steven T., Clayton, Jeffrey, Peters, Charles E.
• Primary Examiner(s): LEON MUNOZ, EDWIN A
• Application Number:
  US13/976,388
• Publication Number:
  US 20140146447A1
• Time in Patent Office: 1,373 Days
• Field of Search: 439/620.09, 439/668, 439/909, 439/527, 439/271, 439/660, 600/378, 607/116, 607/37, 607/38, 607/57, 607/137, 298/25, 298/57, 298/77, 298/79
• US Class Current: 1/1
• CPC Class Codes: A61N 1/3754 Feedthroughs
• CPC Class Codes: H01R 13/5219 Sealing means between coupling parts, e.g. interfacial seal
• CPC Class Codes: H01R 13/621 Bolt, set screw or screw clamp
• CPC Class Codes: H01R 2107/00 Four or more poles
• CPC Class Codes: H01R 2201/12 for medicine and surgery
• CPC Class Codes: H01R 24/58 Contacts spaced along longitudinal axis of engagement
• CPC Class Codes: H05K 5/0247 Electrical details of casings, e.g. terminals, passages for cables or wiring
• CPC Class Codes: Y10T 29/4921 with bonding
• CPC Class Codes: Y10T 29/49213 Metal

Abstract

Medical devices provide a connector enclosure that includes a feedthrough integrated into the base of the connector enclosure. The feedthrough may include feedthrough passageways that align longitudinally with lead connectors of the connector enclosure where feedthrough pins extend from the lead connectors through the feedthrough passageways. The feedthrough may also include filter plates mounted to the base of the connector enclosure to provide an integrated filtered feedthrough. Additionally, the connector enclosure may include metallic features such as the base and one or more walls that define an enclosure of the lead connectors. The base may be bonded to the can of the medical device to provide a hermetic seal such that the feedthrough integrated into the base eliminates the need for a feedthrough for the can.

Claims

1. A method of constructing a medical device, comprising:

providing a can that houses medical circuitry;

providing electrical connectors within the can and electrically connected to the medical circuitry;

providing a connector enclosure that includes an opening to a cavity and further including a metallic base having a plurality of feedthrough pin passageways spaced longitudinally;

providing lead connectors within the cavity and aligned with the opening, the lead connectors being spaced longitudinally in alignment with the feedthrough pin passageways;

providing a plurality of feedthrough pins that are electrically connected to the lead connectors and that pass through the feedthrough pin passageways in a fixed relationship relative to the metallic base to extend externally of the connector enclosure;

placing a portion of the can in contact with the metallic base of the connector enclosure such that the electrical connectors within the can and the feedthrough pins externally of the metallic base are in contact and are contained by a housing created by the contact of the can and the metallic connector enclosure; and

creating a bond between the contact of the portion of the can and the metallic base of the connector enclosure.

2. The method of claim 1, wherein the can has an opening defined by an edge and where creating the bond is done so that the metallic base covers the opening.

3. The method of claim 1, wherein the can is fully metallic.

4. The method of claim 1, wherein the connector enclosure comprises a body that defines the cavity and is fully metallic.

5. The method of claim 1, further comprising providing at least one feedthrough filter plate bonded to the metallic base, the feedthrough filter plate including a plurality of feedthrough pin passageways that receive the feedthrough pins, the feedthrough filter plate including conductors that are capacitively coupled to the feedthrough pins.

6. The method of claim 1, wherein the metallic base comprises titanium.

7. The method of claim 6, wherein the titanium is grade 5.

8. The method of claim 1, wherein the connector enclosure further comprises a titanium panel that covers the cavity.

9. The method of claim 8, wherein the titanium panel is grade 1 titanium.

10. The method of claim 1, wherein the bond is a metallic weld.

11. The method of claim 10, wherein the metallic weld is a laser seam weld.

12. A method of constructing a medical device, comprising:

providing a can that houses medical circuitry;

providing electrical connectors within the can and electrically connected to the medical circuitry;

providing a connector enclosure that includes an opening to a cavity and further including a metallic base having a plurality of feedthrough pin passageways;

providing lead connectors within the cavity and aligned with the opening;

providing a plurality of feedthrough pins that are electrically connected to the lead connectors and that pass through the feedthrough pin passageways in a fixed relationship relative to the metallic base to extend externally of the connector enclosure;

providing at least one feedthrough filter plate bonded to the metallic base, the feedthrough filter plate including a plurality of feedthrough pin passageways that receive the feedthrough pins, the feedthrough filter plate including conductors that are capacitively coupled to the feedthrough pins;

placing a portion of the can in contact with the metallic base of the connector enclosure such that the electrical connectors within the can and the feedthrough pins externally of the metallic base are in contact and are contained by a housing created by the contact of the can and the metallic connector enclosure and such that the conductors of the feedthrough filter plate are electrically coupled to the can; and

creating a bond between the contact of the portion of the can and the metallic base of the connector enclosure.

13. The method of claim 12, wherein the can has an opening defined by an edge and where creating the bond is done so that the metallic base covers the opening.

14. The method of claim 12, wherein the can is fully metallic.

15. The method of claim 12, wherein the connector enclosure comprises a body that defines the cavity and is fully metallic.

16. The method of claim 12, wherein the metallic base comprises titanium.

17. The method of claim 16, wherein the titanium is grade 5.

18. The method of claim 12, wherein the connector enclosure further comprises a titanium panel that covers the cavity.

19. The method of claim 18, wherein the titanium panel is grade 1 titanium.

20. The method of claim 12, wherein the bond is a metallic weld.

21. The method of claim 20, wherein the metallic weld is a laser seam weld.

22. A method of constructing a medical device, comprising:

providing a can that houses medical circuitry;

providing electrical connectors within the can and electrically connected to the medical circuitry;

providing a connector enclosure that includes an opening to a cavity wherein at least a portion of the cavity is defined by metallic walls, the connector enclosure further including a metallic base having a plurality of feedthrough pin passageways;

providing lead connectors within the cavity and aligned with the opening, a count of lead connectors that are present within the cavity being equal to a count of feedthrough pin passageways that are present within the metallic base;

providing a plurality of feedthrough pins that are electrically connected to the lead connectors and that pass through the feedthrough pin passageways in a fixed relationship relative to the metallic base to extend externally of the connector enclosure;

placing a portion of the can in contact with the metallic base of the connector enclosure such that the electrical connectors within the can and the feedthrough pins externally of the metallic base are in contact and are contained by a housing created by the contact of the can and the metallic connector enclosure; and

creating a bond between the contact of the portion of the can and the metallic base of the connector enclosure.

23. The method of claim 22, wherein the can has an opening defined by an edge and where creating the bond is done so that the metallic base covers the opening.

24. The method of claim 22, wherein the can is fully metallic.

25. The method of claim 22, wherein the connector enclosure comprises a body that defines the cavity and is fully metallic.

26. The method of claim 22, further comprising providing at least one feedthrough filter plate bonded to the metallic base, the feedthrough filter plate including a plurality of feedthrough pin passageways that receive the feedthrough pins, the feedthrough filter plate including conductors that are capacitively coupled to the feedthrough pins.

27. The method of claim 22, wherein the metallic base comprises titanium.

28. The method of claim 27, wherein the titanium is grade 5.

29. The method of claim 22, wherein the connector enclosure further comprises a titanium panel that covers the cavity.

30. The method of claim 29, wherein the titanium panel is grade 1 titanium.

31. The method of claim 22, wherein the bond is a metallic weld.

32. The method of claim 31, wherein the metallic weld is a laser seam weld.

33. A medical device, comprising:

a can that houses medical circuitry;

electrical connectors within the can and electrically connected to the medical circuitry;

a connector enclosure that includes an opening to a cavity and further including a metallic base having a plurality of feedthrough pin passageways spaced longitudinally;

lead connectors within the cavity and aligned with the opening, the lead connectors being spaced longitudinally in alignment with the feedthrough pin passageways; and

a plurality of feedthrough pins that are electrically connected to the lead connectors and that pass through the feedthrough pin passageways in a fixed relationship relative to the metallic base to extend externally of the connector enclosure;

wherein a portion of the can is in contact with the metallic base of the connector enclosure such that the electrical connectors within the can and the feedthrough pins externally of the metallic base are in contact and are contained by a housing created by the contact of the can and the metallic connector enclosure, and wherein a bond is present at the contact of the portion of the can and the metallic base of the connector enclosure.

34. A medical device, comprising:

a can that houses medical circuitry;

electrical connectors within the can and electrically connected to the medical circuitry;

a connector enclosure that includes an opening to a cavity and further including a metallic base having a plurality of feedthrough pin passageways;

lead connectors within the cavity and aligned with the opening;

a plurality of feedthrough pins that are electrically connected to the lead connectors and that pass through the feedthrough pin passageways in a fixed relationship relative to the metallic base to extend externally of the connector enclosure; and

at least one feedthrough filter plate bonded to the metallic base, the feedthrough filter plate including a plurality of feedthrough pin passageways that receive the feedthrough pins, the feedthrough filter plate including conductors that are capacitively coupled to the feedthrough pins;

wherein a portion of the can is in contact with the metallic base of the connector enclosure such that the electrical connectors within the can and the feedthrough pins externally of the metallic base are in contact and are contained by a housing created by the contact of the can and the metallic connector enclosure and such that the conductors of the feedthrough filter plate are electrically coupled to the can, and wherein a bond is present at the contact of the portion of the can and the metallic base of the connector enclosure.

35. A medical device, comprising:

a can that houses medical circuitry;

electrical connectors within the can and electrically connected to the medical circuitry;

a connector enclosure that includes an opening to a cavity wherein at least a portion of the cavity is defined by metallic walls, the connector enclosure further including a metallic base having a plurality of feedthrough pin passageways;

lead connectors within the cavity and aligned with the opening, wherein a count of lead connectors that are present within the cavity are equal to a count of feedthrough pin passageways that are present within the metallic base; and

a plurality of feedthrough pins that are electrically connected to the lead connectors and that pass through the feedthrough pin passageways in a fixed relationship relative to the metallic base to extend externally of the connector enclosure;

wherein a portion of the can is in contact with the metallic base of the connector enclosure such that the electrical connectors within the can and the feedthrough pins externally of the metallic base are in contact and are contained by a housing created by the contact of the can and the metallic connector enclosure, and wherein a bond is present at the contact of the portion of the can and the metallic base of the connector enclosure.