Implantable medical device including a first enclosure portion having a feedthrough in a second interior surface

• US 5,535,097 A
• Filed: 11/23/1993
• Issued: 07/09/1996
• Est. Priority Date: 11/23/1993
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Galvin, Jeffrey L., Kline, Lourdes O., Simmons, Bill R., Ruben, David A., Nicholson, John E., Seifried, Lynn M., Nutzman, Thomas M., Wiklund, Craig L.
• Primary Examiner(s): SPARKS, DONALD ALAN
• Application Number:
  US08/158,066
• Time in Patent Office: 959 Days
• Field of Search: 174/50, 174/50.5, 174/50.51, 174/50.52, 174/50.54, 174/259, 361/728, 361/736, 361/752, 361/757, 361/771, 361/807, 361/808, 361/809, 361/820, 607/36
• US Class Current: 361/736
• CPC Class Codes: A61N 1/3752 Details of casing-lead connections
• CPC Class Codes: A61N 1/3758 Packaging of the components within the casing

Abstract

An implantable medical device including a hermetic housing containing an electronic circuit, such as a cardiac pacemaker. The electronic circuit may be coupled to a medical lead by means of a connector module which is formed as part of a molded, resilient shroud, extending around the circumference of the hermetic container.

Claims

1. An implantable medical device, comprising:

a first enclosure portion having a generally planar first, lower interior surface, a second interior surface generally parallel to said first, lower interior surface and displaced upward from said first, lower interior surface and a circumferential edge surface;

adhesive, located on said first, lower interior surface;

a battery having a terminal, said battery located on said adhesive;

an electronic circuit having a bonding pad, said electronic circuit located on said adhesive;

a wire, coupling said terminal to said bonding pad and wire bonded to said terminal and said pad;

a feedthrough, mounted to said first enclosure portion, extending through said second interior surface and extending from an exterior surface of said first enclosure portion;

a second enclosure portion mounted to said first enclosure portion to enclose said battery and circuit.

3. An implantable device according to claim 1 or claim 2, further comprising a connector module, mounted to said circumferential edge surface, a conductor coupling said feedthrough to said connector module and an insulative coating covering said conductor and a portion of said exterior surface of said first enclosure portion proximate said feedthrough.

4. An implantable device according to claim 1 or claim 2, wherein said feedthrough comprises a feedthrough pin having an expanded portion defining a bonding pad parallel to said second interior surface.

2. An implantable medical device, comprising:

a first enclosure portion having a generally planar first, lower interior surface, a second interior surface generally parallel to said first, lower interior surface and displaced upward from said first, lower interior surface and a circumferential edge surface;

a battery, mounted to said first, lower interior surface;

an electronic circuit, coupled to said battery and having a bonding pad, said electronic circuit mounted to said first, lower interior surface;

a feedthrough, mounted to said first enclosure portion, extending through said second interior surface and extending from an exterior surface of said first enclosure portion;

a wire, coupling said terminal to said bonding pad and wire bonded to said feedthrough and said bonding pad;

a second enclosure portion mounted to said first enclosure portion to enclose said battery and circuit.