Angeion Corporation

Burron Cardiovascular, a Division of B. Braun Medical, Inc.

Duane Zytkovicz

Thomas J McEvoy

Gregory G Brucker

Randy S Nelson

A multi-conductor fluted channel construction catheter lead is comprised of an elongated flexible tubular inner body member having a peripheral surface on which a plurality of longitudinally-oriented fluted channels are defined. A plurality of elongated conductors are provided with at least one conductor being disposed within one of the fluted channels and operably connected at a distal portion to an electrode and at a proximal portion to a connector. An outer insulative sheath member surrounds the inner body member and the conductors. A method of constructing a fluted channel catheter lead is also disclosed.

Fluted channel construction for a multi-conductor catheter lead

A system for passively anchoring mid-lead electrodes on an endocardial catheter lead includes at least one fibrosis-anchoring opening positioned along the exterior surface of the catheter lead body proximal or distal to the mid-lead electrodes for passively securing the catheter lead against the interior wall of the heart. Within the fibrosis-anchoring openings a suitable material is provided for anchoring the catheter lead body to the heart wall by fibrosis. Preferably, the fibrosis-anchoring openings comprise at least a pair of openings positioned only partially around the exterior of the catheter lead body at locations both proximal and distal to the mid-lead electrodes, with the catheter lead body between the fibrosis-anchoring openings being pre-formed to bias the mid-lead electrodes against the heart wall.

System for anchoring mid-lead electrode on an endocardial catheter lead

An inflation system for pressurization and depressurization of a balloon catheter. The inflation system includes a syringe, including a syringe barrel, a plunger with expandable thread, a handle with cam, a syringe end cap, pressure gauge, flexible tubing, and connectors. The syringe is structured such that part of the syringe barrel has an internal thread which engages the expandable threads of the plunger. In the disengaged mode, the plunger slides freely within the syringe barrel allowing for rapid motion to purge, pressurize, or depressurize the inflation system. Once pressure reaches a predetermined level in the system, the cam on the handle causes the threads to automatically lock against the syringe barrel, and continued pressurization or depressurization is accomplished by the rotation of the plunger handle with respect to the syringe barrel. One advantage of the inflation system is that only one step is necessary for locking the syringe for controlled pressurization and depressurization.

Inflation system for a balloon catheter

A pressure gauge including a bourdon tube where a substantial portion of the pressure gauge is filled with a silicone gel, gelatinous material, or any other suitable materials.

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Onamia, MN, United States of America

Duane Zytkovicz