Defibrillator circuit for producing a trapezoidal defibrillation

Surgery – Truss – Pad

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61N 136

Patent

active

048237965

ABSTRACT:
A pulse delivery control signal is applied to and removed from a master or pulse delivery electronic switch to respectively start and terminate the delivery of a trapezoidal waveform defibrillation pulse from charge storage capacitors to a patient. In one specific embodiment, a transfer charge storage circuit is coupled to a capacitor charging circuit for charging as the charge storage capacitors are charged. A transfer switch interconnects the transfer charge storage circuit to a first field-effect transistor switch. In response to a transfer signal, a transfer voltage signal is delivered from the transfer charge storage circuit, through the transfer switch and to the first field-effect transistor. In response, the first field-signal transistor applied the pulse delivery control signal to the master switch. A second field-effect transistor may be included for operating the master switch together with the first field-effect transistor. Voltage detection and energy selection circuits may be employed for detecting when the charge storage capacitors in the circuit are charged to a desired level and for establishing the level to which the capacitors are charged to thereby control the energy delivered by the defibrillation pulses.

REFERENCES:
patent: Re30750 (1981-09-01), Diack et al.
patent: 969659 (1948-07-01), Valet
patent: 3093136 (1963-06-01), Lohr
patent: 3258013 (1966-06-01), Druz
patent: 3263093 (1966-07-01), Erdmann
patent: 3275851 (1966-09-01), Bedingfield
patent: 3312837 (1967-04-01), Flynn et al.
patent: 3359984 (1967-12-01), Daniher et al.
patent: 3389704 (1968-06-01), Buchowski et al.
patent: 3442269 (1969-05-01), Druz
patent: 3481341 (1969-12-01), Siedband
patent: 3513850 (1970-05-01), Weber
patent: 3548219 (1970-12-01), Lawrie, Jr. et al.
patent: 3706313 (1972-12-01), Milani et al.
patent: 3747605 (1973-07-01), Cook
patent: 3772533 (1973-11-01), Bruckner et al.
patent: 3782389 (1976-01-01), Bell
patent: 3805795 (1974-04-01), Denniston et al.
patent: 3814105 (1974-06-01), Howard et al.
patent: 3860009 (1975-01-01), Bell et al.
patent: 3862636 (1975-01-01), Bell et al.
patent: 3865101 (1975-02-01), Saper et al.
patent: 3886950 (1975-06-01), Ukkestad et al.
patent: 3913588 (1975-10-01), Klomp
patent: 3952750 (1976-04-01), Mirowski et al.
patent: 3983476 (1976-09-01), Konopasek
patent: 4077413 (1978-03-01), Partridge
patent: 4094310 (1978-06-01), McEachern et al.
patent: 4096856 (1978-06-01), Smith et al.
patent: 4165749 (1979-08-01), Cansell
patent: 4233659 (1980-11-01), Pirkle
patent: 4316472 (1982-02-01), Mirowski et al.
patent: 4323075 (1982-04-01), Langer
patent: 4328808 (1982-05-01), Charbonnier et al.
patent: 4360026 (1982-11-01), Venin et al.
patent: 4372324 (1983-02-01), Rockwell
patent: 4432375 (1984-02-01), Angel et al.
patent: 4440172 (1984-04-01), Langer
patent: 4494544 (1985-01-01), Lambert
patent: 4499907 (1985-02-01), Kallok et al.
patent: 4504773 (1985-03-01), Suzuki et al.
patent: 4506677 (1985-03-01), Lambert
patent: 4510935 (1985-04-01), Spencer
patent: 4548203 (1985-10-01), Tacker, Jr. et al.
patent: 4566457 (1986-01-01), Stemple
patent: 4576170 (1986-03-01), Bradley et al.
patent: 4578597 (1986-03-01), Soneda et al.
patent: 4614192 (1986-09-01), Imran et al.
Patent Office Official Gazette Summary of U.S. Pat. No. 3,614,954 of Mirowski, et al.--Electronic Standby Defibrillator.
Patent Office Official Gazette Summary of U.S. Pat. No. 3,614,055 of Mirowski, et al.--Standby Defibrillator and Method of Operation.
Article entitled "Doubling Breakdown Voltage with Cascoded Transistors" by Peter T. Uhler, from Circuits for Electronics Engineers (p. 352), Electronics Magazine Book Series (McGraw-Hill Publications Co. 1977).
Silicon Controlled Rectifier Manual (pp. 110-111), Third Edition, General Electric, Rectifier Components Department, Auburn, N.Y.
Semiconductor Power Circuits Handbook (pp. 4-10/4-13), First Edition, Applications Engineering Department of Motorola Semi-Conductor Products, Inc. (Nov. 1968).
Article entitled "Ventricular Defibrillation by Monophasic Trapezoidal-Shaped Double-Pulses of Low Electrical Enery" by Leon Resnekov, et al., from Cardiavasc. Res. (1968) (pp. 261-264).
Article entitled "Electrical Ventricular Defibrillation" by L. A. Geddes for E. I. Monthly (1976) (pp. 42-72).
Patent Office Official Gazette Summary of U.S. Pat. No. 3,527,229 of Kempen--"Method and Apparatus for Cardiac Defibrillation".

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Defibrillator circuit for producing a trapezoidal defibrillation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Defibrillator circuit for producing a trapezoidal defibrillation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Defibrillator circuit for producing a trapezoidal defibrillation will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1188715

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.