Elongate battery for implantable medical device

摘要

A battery assembly for a medical device includes an elongate cathode, an elongate anode, an electrolyte, and an elongate housing assembly encapsulating the cathode, the anode, and the electrolyte. The battery assembly also includes a first electrode exposed from and electrically insulated from the housing assembly. One of the anode and the cathode is electrically coupled to the first electrode, and the other of the anode and the cathode is electrically coupled to the housing assembly. Respective axes of the cathode and the anode are substantially parallel to an axis of the housing assembly, and the cathode and anode each include a flat portion that face each other.

主权项

1. A battery assembly for a medical device, the battery assembly comprising:
a single substantially solid elongate cathode having a substantially solid cross-section made of a cathode material; a single substantially solid, elongate anode having a substantially solid cross-section made of an anode material; an electrolyte; an elongate housing assembly encapsulating the cathode, the anode, and the electrolyte; and a first electrode exposed from and electrically insulated from the housing assembly, one of the anode and the cathode being electrically coupled to the first electrode and the other of the anode and the cathode being electrically coupled to the housing assembly, respective axes of the cathode and the anode being substantially parallel to an axis of the housing assembly, the respective cross-sections of the cathode and the anode taken substantially perpendicular to the respective axes of the cathode and the anode, the anode and the cathode each being substantially D-shaped so as to include a rounded portion and a flat portion opposite the rounded portion and wherein the flat portions of the cathode and anode that are opposite the rounded portions of the D-shaped cathode and anode face each other and a separator having opposing major surfaces is disposed between the flat portions of the D-shaped anode and cathode and each of the opposing major surfaces of the separator in contact with respective flat portions of the anode and the cathode, wherein the anode is not disposed within the cathode.