Medtronic, Inc.

James R Svensk

Mark T Marshall

Kenneth E Cobian

Keith A Ufford

Richard Dean Ries

Richard D Sandstrom

Keith Alan Miesel

Anthony J Varrichio

Louis E Halperin

Timothy Patrick

Beth A Hassler

A medical electrical lead implant tool includes a gripping assembly, terminating a distal end of an elongate shaft, adapted to alternately grasp the lead and release the lead and to rotate the lead, and a user control terminating a proximal end of the shaft. An internal drive cable extends within the shaft coupling the gripping assembly to the user control. The user control facilitates single-handed manipulation of a slidable dial, which may be grasped by fingers of a hand for longitudinal and rotational manipulation when a stationary handle is held in a palm of the hand; the longitudinal manipulation causing the gripping assembly, via the drive cable, to alternately grasp the lead and release the lead and the rotational manipulation causing the gripping assembly, via the drive cable, to rotate the lead.

Medical electrical lead implant tool

An implantable component including a feedthrough assembly and a method for forming the feedthrough assembly wherein a coating forming a fluid barrier over an insulator, an insulator-to-terminal pin interface and an insulator-to-ferrule interface is incorporated.

Implantable device feedthrough assembly

Method of manufacturing an implantable device feedthrough assembly

An endocardial lead for implantation in a right heart chamber for responding to blood pressure and temperature and providing modulated pressure and temperature related signals to an implanted or external hemodynamic monitor and/or cardiac pacemaker or pacemaker/cardioverter/defibrillator. The lead has a sensor module formed in its distal end and is coupled to a monitor that powers a sensor circuit in the sensor module. The sensor module is formed with a pickoff capacitor that changes capacitance with pressure changes and a reference capacitor that is relatively insensitive to pressure changes. The sensor circuit provides charge current that changes with temperature variation at the implant site, alternately charges and discharges the two capacitors, and provides timing pulses having distinguishable parameters at the end of each charge cycle that are transmitted to the demodulator. The demodulator detects and synchronizes the timing pulses and derives pressure and temperature analog voltage values representative of the intervals between the timing pulses which are digitized and stored in the monitor. The monitor may also be coupled with other sensors for measuring and storing related patient body parameters, e.g. blood gas, EGM, and patient activity.

Implantable capacitive absolute pressure and temperature sensor

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Coon Rapids, MN, United States of America

James R Svensk