Implantable medical device with stacked circuit components

• US 10,434,300 B2
• Filed: 11/30/2015
• Issued: 10/08/2019
• Est. Priority Date: 12/01/2014
• Status: Active Grant

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Maile, Keith R., Edgell, John M., Gilk, Mathew L., Schmidt, Brian L., Haasl, Benjamin J., Blood, James E.
• Primary Examiner(s): Getzow, Scott M.
• Application Number:
  US14/953,987
• Publication Number:
  US 20160151621A1
• Time in Patent Office: 1,408 Days
• CPC Class Codes: A61N 1/025 Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence
• CPC Class Codes: A61N 1/36514 controlled by a physiological quantity other than heart potential, e.g. blood pressure controlled by two or more physical parameters A61N1/36585
• CPC Class Codes: A61N 1/3756 Casings with electrodes thereon, e.g. leadless stimulators
• CPC Class Codes: A61N 1/3758 Packaging of the components within the casing

Abstract

Devices and circuits for reducing sizes of medical devices are disclosed. In one example, an implantable medical device (IMD) may include a housing, multiple electrodes outside of the housing, an energy storage device within the housing, and a circuit within the housing and connected to the energy storage device and the two or more electrodes. In some cases, the circuit may include two or more island sections, with each island section connected to at least one other island section by a ribbon section. Each island section may have two opposing major surfaces. A first island section and a second island section may be stacked within the housing such that one of the two major surfaces of the first island section faces one of the two opposing major surfaces of the second island section.

Claims

1. An implantable medical device (IMD) configured for implantation within a patient, the IMD comprising:

an elongated housing having a major and minor dimension;

two or more electrodes electrically exposed outside of the housing;

an energy storage device disposed within the housing, the energy storage device having a feedthrough extending away from the energy storage device along the major dimension of the elongated housing;

a flexible circuit disposed within the housing and electrically connected to the energy storage device and the two or more electrodes;

the flexible circuit comprises a flexible substrate that has two or more island sections and one or more ribbon sections, wherein each island section is electrically connected to at least one other island section by one or more ribbon section, wherein each island section has two opposing major surfaces, and wherein each ribbon section comprises a metal portion bonded between two polymer portions, and each of the island sections comprises a first metal portion bonded between two polymer portions, and second metal portions bonded to the two polymer portions;

a first one of the two or more island sections and a second one of the two or more island sections being stacked within the housing such that the two opposing major surfaces of the first one of the two or more island sections and the two opposing major surfaces of the second one of the two or more island sections extend transverse to the major dimension of the elongated housing; and

the first one of the two or more island sections and the second one of the two or more island sections positioned within the elongated housing adjacent to the energy storage device such that one of the first island section and the second island second receives the feedthrough of the energy storage device.