IMPLANTABLE MEDICAL DEVICES WITH POWER SUPPLY NOISE ISOLATION
First Claim
1. An implantable medical device, comprising:
- a hermetically sealed housing including a battery case and a circuit case;
an energy source disposed within the battery case;
an operational circuit disposed within the circuit case and electrically coupled to the energy source;
a first electrode disposed on an outer surface of the housing and electrically coupled to an input mechanism of the operational circuit; and
a second electrode coupled to an outer surface of the battery case and electrically coupled to the input mechanism of the operational circuit, wherein the second electrode is coupled to the input mechanism through a signal pathway that is decoupled from a current pathway defined between the battery and the operational circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides an implantable medical device having at least two electrodes coupled to the device housing. The electrodes may be configured for sensing physiological signals such as cardiac signals and alternatively for providing an electrical stimulation therapy such as a pacing or defibrillation therapy. In accordance with aspects of the disclosure, the device housing provides a hermetic enclosure that includes a battery case hermetically coupled to a circuit assembly case. At least one of the at least two electrodes is coupled to an exterior surface of the battery case. The battery case is electrically insulated from the cathode and anode of the battery.
-
Citations
20 Claims
-
1. An implantable medical device, comprising:
-
a hermetically sealed housing including a battery case and a circuit case; an energy source disposed within the battery case; an operational circuit disposed within the circuit case and electrically coupled to the energy source; a first electrode disposed on an outer surface of the housing and electrically coupled to an input mechanism of the operational circuit; and a second electrode coupled to an outer surface of the battery case and electrically coupled to the input mechanism of the operational circuit, wherein the second electrode is coupled to the input mechanism through a signal pathway that is decoupled from a current pathway defined between the battery and the operational circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method of manufacturing an implantable medical device, comprising:
-
providing a hermetically sealed housing having a battery case and a circuit case; forming a first electrode on an exterior surface of the battery case; coupling a second electrode on the housing; coupling at least first and second feedthroughs to the battery case, wherein the first and second feedthroughs include a positive terminal and a negative terminal of the battery; connecting an operational circuit to the positive and negative terminals; forming a third terminal on the battery case that is directly coupled to the operational circuit and decoupled from a current pathway defined between the positive and negative terminals of the battery and the operational circuit; connecting the first electrode to the operational circuit through the signal pathway; connecting the second electrode to the operational circuit; enclosing the operational circuit within the circuit case; and coupling the battery case to the circuit case. - View Dependent Claims (17, 18, 19, 20)
-
Specification