Alfred E. Mann Foundation for Scientific Research

Adam Vogel, Legal Representative

Joseph H Schulman

Martin J Vogel

Lee Jay Mandell

Yitzhak Zilberman

Kate E Purnell

Donald J Hancock

Richard J Nelson

Robert A Firth

Anthony D Falco

Lung-Hsi Chu

Dale A Lewis

A method of removing an implantable electronic microdevice by an integral removal loop or circumferential ring to facilitate removal of the implanted microdevice without additional surgery. The device is removed by pulling it along the surgically created implantation path. Optionally a radio-opaque tether provides a method of locating the implantable microdevice without additional surgery and attachment of one end of the tether to a radio-opaque marker provides a method of locating the end of the tether to facilitate removal of the implantable microdevice from living tissue.

Method for removing surgically implanted devices

A method and apparatus for protecting an electronic implantable medical device prior to it being implanted in a patient's body. The apparatus affords protection against electronic component damage due to electrostatic discharge and/or physical damage due to improper handling. The apparatus is comprised of a circuit board having conductive surface means for receiving and releasably grasping the electrodes of the medical device to support the device's housing proximate to the surface of the circuit board. First and second conductive paths are formed on the circuit board extending between the first and second conductive surfaces for shunting electrostatic discharge currents to prevent such currents from passing through the device's electronic circuitry. The respective shunt paths include oppositely oriented diodes, preferably comprising diodes which emit light (i.e., LEDs) when current passes therethrough. Additionally, means are provided to enable functional testing of the medical device.

Protection apparatus for implantable medical device

An automatic tuning system for a magnetic field generating tuned circuit includes a processor configured to maintain the resonant frequency of a tuned circuit equal to a reference frequency. The tuned circuit is driven by a power amplifier whose output provides an amplified signal at the reference frequency. The tuned circuit includes a magnetic field generating inductor and a bank of individually switchable capacitors controlled by the processor capable of adding and removing the respective capacitances to and from the tuned circuit. The inductor includes a Faraday shield to shield the tuned circuit from the influence of electric fields. In an embodiment of the invention, the variable capacitor is in the form of a diode variable capacitor (varicap) in parallel circuit relationship with the tuned circuit capacitor and the inductor. In an alternate embodiment the inductor and a fixed capacitor are in series circuit relationship with the varicap in parallel circuit relationship with the fixed capacitor and the tuning sequence relies on a phase locked loop using the phase of a reference frequency signal and the phase of the inductor voltage as control parameters.

System and method for automatic tuning of a magnetic field generator

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Valencia, CA, United States of America

Adam Vogel, Legal Representative