Medical Research Laboratories, Inc.

Physio Technology, Inc.

Davis Controls Corporation

Richard G Kerwin

Dean L Milani

John C Castel

A lighting device using a fluorescent lamp adapted to be powered from a low voltage direct current source. Operation of the lamp is facilitated by the inclusion of a stabilized blocking oscillator circuit which provides high voltage alternating current for ignition and operation of the lamp as well as power for operating the filamentary heaters when included in the lamp. Operation at a very high frequency improves the efficiency of the fluorescent lamp, thus providing greater light output.

Low voltage direct current (DC) powered fluorescent lamp

An electrical inhibitor system is disclosed for suppressing the application of transcutaneous nerve stimulator (TNS) signals during the T-wave portion of a heartbeat. The system includes a sensing circuit which is coupled to detect the R-S waveform produced by the heart during its normal beating pattern. Upon detection of the R-S portion of the waveform, an electrical signal is produced and coupled to timing circuitry to produce a timing signal having a duration in excess of the normal period of the T-wave portion of the heartbeat. The timing signal is to inhibit the output of a transcutaneous nerve stimulator during the T-wave portion of the heartbeat. When the inhibiting circuit and transcutaneous nerve stimulator are coupled to a patient, the system provides an inhibiting signal beginning during the R-S portion of the waveform and extending through the T-wave portion of the hearbeat to prevent application of the output from the transcutaneous nerve stimulator during the vulnerable period of the heart. The transcutaneous nerve stimulator can thus be used without endangering the patient from electrical stimulation.

T-Wave inhibiting system

A disposable electrode pad is provided for a defibrillator electrode. The pad is saturated with electrically conductive greasy material, sometimes known as electrogel. The pad is designed for adhesive or other securing to the electrode, and the pad is covered with a tear-off aluminum sheet cover to protect the integrity and sanitation of the pad, while still allowing sufficient electrical conductivity for monitoring a patient's heartbeat through the electrode.

Method of using a disposable electrode pad

Electronic defibrillating mechanism in which the electrodes comprise handles to be grasped by an operator with electrodes in the form of discs to be placed against the chest of the patient. The handles are provided with push buttons, and a neon ready-light is provided in each push button to indicate when the apparatus is charged to the desired extent for the operator to effect a defibrillating discharge.

Growing community of inventors

Prospect Heights, IL, United States of America

Richard G Kerwin