GB1198111A - Improvements in Defibrillators - Google Patents
Improvements in DefibrillatorsInfo
- Publication number
- GB1198111A GB1198111A GB34560/67A GB3456067A GB1198111A GB 1198111 A GB1198111 A GB 1198111A GB 34560/67 A GB34560/67 A GB 34560/67A GB 3456067 A GB3456067 A GB 3456067A GB 1198111 A GB1198111 A GB 1198111A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitors
- switch
- circuit
- relay
- pulse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 abstract 10
- 238000002955 isolation Methods 0.000 abstract 2
- 230000001862 defibrillatory effect Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
- A61N1/3925—Monitoring; Protecting
- A61N1/3931—Protecting, e.g. back-up systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
- A61N1/3925—Monitoring; Protecting
- A61N1/3937—Monitoring output parameters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S323/00—Electricity: power supply or regulation systems
- Y10S323/911—Medical electronics
Abstract
1,198,111. Defibrillators. FRITZ HELLIGE & CO. G.m.b.H. 27 July, 1967 [28 July, 1968], .No. 34560/167. Heading A5R. [Also in Division H3] A defibrillator for applying a direct current pulse to the heart through internal or external electrodes 29a, 29b comprises a charge storage circuit including at least one storage capacitor Cl, C2 and a controller monitoring the charging of the capacitor and arranged to actuate a shock-releasing switch in the output circuit of the capacitor. As shown, the storage capacitors C1, C2 are charged from an A.C. supply 32 through the master switch contacts 2a, 2b, an adjustable transformer 30 (or potentiometer), and rectifiers D1 D2, and the capacitors are arranged to discharge to the electrodes. 29a, 29b through a controller circuit R1, R2, 23, 25 limiting the voltage across the capacitors, and a relay operated isolation, switch 27a, 27b able to separate the capacitors from the electrodes. The defibrillator circuit is arranged such that pressing the master switch 2 allows the capacitors C1 C2 to charge (with the switch 27a, 27b open) until a glow discharge tube 25 triggers to cause a photo-electric device 11 and amplifier 8 to move switch contacts 4a, 4b with a relay 7a, the A.C. supply then being switched by the contacts 4a, 4b, to leads 5, an da relay 12 to close the isolation switch contacts 27a, 27b and allow the capacitors change to be delivered to the patient. The transformer control 31 and the control 34 on the adjustable resistor in the controller circuit can be moved, preferably (by a common control 'knob 35a, so as to adjust the voltage of the deflibrillating pulse. The defibrillator circuit also includes resistors 39, 40 arranged to shortcircuit the charge on the capacitors C1 C2 if the defibrillating pulse is, for some reason, not delivered, and an optional circuit (introduced by a switch 13) able, through a switch 15c and a relay 15b, to synchronize the defilbrillation pulse to the R-wave signal derived from the patients heart via an electrocardiograph 15a, 15.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1966H0060085 DE1564084B2 (en) | 1966-07-28 | 1966-07-28 | DC DEFIBRILLATOR |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1198111A true GB1198111A (en) | 1970-07-08 |
Family
ID=7160803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34560/67A Expired GB1198111A (en) | 1966-07-28 | 1967-07-27 | Improvements in Defibrillators |
Country Status (3)
Country | Link |
---|---|
US (1) | US3513850A (en) |
DE (1) | DE1564084B2 (en) |
GB (1) | GB1198111A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2193054A (en) * | 1986-06-06 | 1988-01-27 | Bio Rad Laboratories | Transfection high-voltage controller |
US6103084A (en) * | 1995-06-06 | 2000-08-15 | Eppendorf Netheler-Hinz Gmbh | Apparatus for electroporation |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL174701C (en) * | 1970-02-09 | 1989-12-18 | Mirowski Mieczyslaw | DEFIBRILLATOR. |
US4316472C1 (en) * | 1974-04-25 | 2001-08-14 | Mieczyslaw Mirowski | Cardioverting device with stored energy selecting means and discharge initiating means and related method |
US4572191B1 (en) * | 1974-04-25 | 2000-10-24 | Mirowski Miecyslaw | Command atrial cardioverter |
US4077413A (en) * | 1976-05-04 | 1978-03-07 | The Burdick Corporation | Defibrillator |
DE2651031C2 (en) * | 1976-11-09 | 1982-04-01 | Bruker Medizintechnik Gmbh, 7512 Rheinstetten | Defibrillator |
US4164215A (en) * | 1977-06-10 | 1979-08-14 | Hewlett-Packard Company | Electrode switching means for use in a defibrillator |
SU1000030A1 (en) * | 1980-02-28 | 1983-02-28 | Научно-Производственное Объединение По Радиоэлектронной Медицинской Аппаратуре "Рэма" | Defibriller |
US4440172A (en) * | 1980-10-02 | 1984-04-03 | Mieczyslaw Mirowski | Apparatus for combining pacing and cardioverting functions in a single implanted device |
US4800883A (en) * | 1986-04-02 | 1989-01-31 | Intermedics, Inc. | Apparatus for generating multiphasic defibrillation pulse waveform |
US4823796A (en) * | 1987-04-03 | 1989-04-25 | Laerdal Manufacturing Corp. | Defibrillator circuit for producing a trapezoidal defibrillation pulse |
FR2633837A1 (en) * | 1988-07-06 | 1990-01-12 | Atesys Sa | CHARGING-DISCHARGE CIRCUIT FOR CAPACITOR OF CARDIAC DEFIBRILLATOR |
US5222480A (en) * | 1988-12-30 | 1993-06-29 | Physio-Control Corporation | Defibrillator discharge calibration system |
US20060064131A1 (en) * | 2000-02-04 | 2006-03-23 | Freeman Gary A | User interface for defibrillator for use by persons with limited training and experience |
EP1251908B1 (en) | 2000-02-04 | 2017-04-05 | Zoll Medical Corporation | Integrated resuscitation |
US20050131465A1 (en) | 2000-02-04 | 2005-06-16 | Freeman Gary A. | Integrated resuscitation |
US7650181B2 (en) * | 2005-09-14 | 2010-01-19 | Zoll Medical Corporation | Synchronization of repetitive therapeutic interventions |
US20150088016A1 (en) | 2013-09-25 | 2015-03-26 | Zoll Medical Corporation | Mobile Device Control |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3236239A (en) * | 1962-07-17 | 1966-02-22 | American Optical Corp | Defibrillator |
US3258013A (en) * | 1963-07-01 | 1966-06-28 | Zenith Radio Corp | Defibrillators |
-
1966
- 1966-07-28 DE DE1966H0060085 patent/DE1564084B2/en not_active Withdrawn
-
1967
- 1967-07-25 US US655908A patent/US3513850A/en not_active Expired - Lifetime
- 1967-07-27 GB GB34560/67A patent/GB1198111A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2193054A (en) * | 1986-06-06 | 1988-01-27 | Bio Rad Laboratories | Transfection high-voltage controller |
US4750100A (en) * | 1986-06-06 | 1988-06-07 | Bio-Rad Laboratories | Transfection high voltage controller |
GB2193054B (en) * | 1986-06-06 | 1991-03-20 | Bio Rad Laboratories | Apparatus for directing a high voltage current to a chemical solution |
US6103084A (en) * | 1995-06-06 | 2000-08-15 | Eppendorf Netheler-Hinz Gmbh | Apparatus for electroporation |
Also Published As
Publication number | Publication date |
---|---|
US3513850A (en) | 1970-05-26 |
DE1564084B2 (en) | 1977-05-12 |
DE1564084A1 (en) | 1970-01-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |