Cordis Corporation

W Kinzy Jones

Alvin H Weinberg

Abel DeHaan

Harshad Tataria

Richard D Krug

The tip electrode member has a rounded or bullet shaped distal end and has grooves etched into the distal end to increase the surface area of the electrode member within a small displaced surface area to minimize polarization of the tip electrode member while ensuring sufficient electric current flow to cause heart muscle depolarization. Preferably, the tip electrode member is made of titanium or a titanium alloy and is coated with carbon.

Etched grooved electrode for pacing lead and method for making same

The implantable pulse generator herein may take the form of a cardiac pacer. The generator includes a pulse generator circuit including passive and active chips. These are mounted on a chip carrier with the active chips located in a hermetically sealed cavity in one major surface of the carrier and the passive chips are mounted on the other major surface. Conductive means internally of the carrier provide electrical paths interconnecting the active and passive chips.

Implantable pulse generator having a single printed circuit board and a

The human implantable pulse generator herein may serve as a cardiac pacer. The housing for the generator is minimized in size by mounting integrated circuit chips, forming the pulse generator circuit, in a hermetically sealed cavity in a chip carrier.

Implantable pulse generator having a single printed circuit board for

The electrochemical cell comprises an outer conductive housing, an anode material within the housing, a cathode material within the housing, and porous insulating means separating the anode material from the cathode material, and an electrolyte inside the housing and within the porous insulating means. The cathode material is a mixture of a metallic halogen compound and a metallic sulfide compound less electrochemically reactive with the anode material than the metallic halogen compound. The metallic halogen compound and the less electrochemically reactive metallic sulfide compound are mixed in a proportion whereby a first voltage potential can be developed between the metallic halogen compound and the anode material until the metallic halogen compound is depleted so that a second voltage potential different than the first voltage potential can be developed between the less reactive metallic sulfide compound and the anode material after the metallic halogen compound is depleted in order to indicate depletion of the metallic halogen compound and the approaching end of life of the cell.

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Pembroke Pines, FL, United States of America

W Kinzy Jones