Implantable medical device with detachable battery or electronic

Details Implantable medical device with detachable battery or electronic Implantable medical device with detachable battery or electronic

1994-12-21

1996-11-12

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 2, A61N 1375

Patent

active

055735517

ABSTRACT:
An implantable medical device, such as a pacemaker, cardioverter or defibrillator, having a detachable power source, so that either the power source or the electronic circuitry can be replaced. The electronic circuitry is enclosed within a first container and the battery or power source is enclosed within a second container. The two containers are coupled by tracks slidingly connecting the containers along substantially planar sections thereof. In a first embodiment, the tracks comprise dovetail tongue and groove configurations. In a second embodiment, the tracks comprise a bayonet-type connection having male and female parts. The male part comprises two parallel arms. The female part comprises two parallel rails having a relatively inflexible section adjacent a distal end of the rail. Proximally on the rail, there is a relatively flexible section. A tab at the flexible section can be pressed inwardly against the arm to release the arms and allow them to be withdrawn from the female part, without the use of an additional tool. In a third embodiment, the containers are connected by sheaths and blades. The sheaths completely enclose the blades. The blades have two parallel arms connected at proximal ends of the arms by a cross piece. The arms are slightly flexible or bendable. On each arm there is a tab which engages a notch in the side wall of the sheath when the blade is inserted into the sheath.

REFERENCES:
patent: 4010760 (1977-03-01), Kraska et al.
patent: 4119103 (1978-10-01), Jirak
patent: 4787389 (1988-11-01), Tarjan
patent: 4933988 (1990-06-01), Thibault
patent: 5161527 (1992-11-01), Napphulz et al.
patent: 5314451 (1994-05-01), Mulier

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