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GB1321364A - Method and apparatus for high frequency electric surgery - Google Patents

Method and apparatus for high frequency electric surgery

Info

Publication number
GB1321364A
GB1321364A GB2997071A GB1321364DA GB1321364A GB 1321364 A GB1321364 A GB 1321364A GB 2997071 A GB2997071 A GB 2997071A GB 1321364D A GB1321364D A GB 1321364DA GB 1321364 A GB1321364 A GB 1321364A
Authority
GB
United Kingdom
Prior art keywords
cut
switch
mode
generator
terminals
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
Application number
GB2997071A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electro Medical System Inc
Original Assignee
Electro Medical System Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electro Medical System Inc filed Critical Electro Medical System Inc
Publication of GB1321364A publication Critical patent/GB1321364A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/1206—Generators therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/0066—Sensing and controlling the application of energy without feedback, i.e. open loop control

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Otolaryngology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

1321364 High-frequency electrical surgery ELECTRO MEDICAL SYSTEMS INC 25 June 1971 29970/71 Heading A5R Electrosurgical apparatus comprises a generator 20, Figure 1, for generating oscillations of high-frequency electrical energy of substantially constant amplitude, means 10 for controlling the duration of the generation of the energy to produce a series of oscillations over a predetermined time interval and for controlling the spacing in time between each series produced, and electrodes 103, 115 coupled to the generator. The apparatus is used for cutting body tissue and coagulating the blood at the area of the cut by applying envelopes of R.F. electrical energy of an oscillatory wave-form A-F, Figure 7. In operation, the active electrode 115 is placed on a patient 220 perform a cut the power supply switch (211) lying on a passive, plate electrode 103. To is turned on and resistors (203), (204) are set to give the required power levels and switch 102 is closed for the "cut 1" mode. The treadle switch 127 is switched by the surgeon to the "cut" mode and thus connects to contact 128 and energises relay 101. Terminals 43b, 45 of the power supply 40 and switch 100 are closed to energise the generator and produce high-frequency electrical energy as represented by waveform C, Figure 7. The R.F. energy is amplified by power amplifier 30 and flows from the active electrode 115 to cut the body tissue of the patient 220, the energy returning to earth via plate electrode 103 and dissipating in R.F. chokes 121, 124, 125. The coagulation of the blood flowing from the cut tissue is achieved by operating switch 127 to move from contact 128 to 129 to energise relay 105. Contacts 100 open and terminal 21 is no longer grounded and contact 104 closes terminals 12, 13 of the control multivibrator 10 to connect capacitor (C30) in parallel with capacitor (C5). In the "coagulate" mode, the potential at terminals 11, 12 alternately changes between different levels, each level being of a selected duration which is established by the timing cycle of the flip-flop circuit of the multivibrator, Figure 2 (not shown). The voltage waveform at the output of the multivibrator 10 may thus be represented by a pulse-shaped waveform B. A third mode, "cut 2", allows both cutting and coagulation and is obtained by placing switch 102 in the "cut 2" position which opens the ground circuit to terminal 21. In this way, the control multivibrator 10 controls the on- and off-times of the R.F. generator 20 in the same manner as in the "coagulate" mode. However, capacitor (C30) is removed by opening terminals 12, 13 of the multi-vibrator and therefore the on-time is longer and the off-time shorter than before, as represented by waveform A.
GB2997071A 1970-02-04 1971-06-25 Method and apparatus for high frequency electric surgery Expired GB1321364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US854970A 1970-02-04 1970-02-04

Publications (1)

Publication Number Publication Date
GB1321364A true GB1321364A (en) 1973-06-27

Family

ID=21732226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2997071A Expired GB1321364A (en) 1970-02-04 1971-06-25 Method and apparatus for high frequency electric surgery

Country Status (6)

Country Link
US (1) US3675655A (en)
BE (1) BE786077A (en)
CH (1) CH546078A (en)
DE (1) DE2140832A1 (en)
GB (1) GB1321364A (en)
NL (1) NL7209571A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154881A (en) * 1984-01-25 1985-09-18 Matburn Electrosurgical unit
GB2225534A (en) * 1988-08-11 1990-06-06 Kontron Holding Ag Electrosurgical apparatus
US6228081B1 (en) 1999-05-21 2001-05-08 Gyrus Medical Limited Electrosurgery system and method

Families Citing this family (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038984A (en) * 1970-02-04 1977-08-02 Electro Medical Systems, Inc. Method and apparatus for high frequency electric surgery
US3812858A (en) * 1972-10-24 1974-05-28 Sybron Corp Dental electrosurgical unit
US3885569A (en) * 1972-11-21 1975-05-27 Birtcher Corp Electrosurgical unit
US3804096A (en) * 1972-11-30 1974-04-16 Dentsply Int Inc Electrosurgical device
JPS4984092A (en) * 1972-12-20 1974-08-13
US3875945A (en) * 1973-11-02 1975-04-08 Demetron Corp Electrosurgery instrument
US3961630A (en) * 1973-11-12 1976-06-08 Dentsply Research & Development Corporation Protective circuit for radio-frequency electrosurgical device
US3897788A (en) * 1974-01-14 1975-08-05 Valleylab Inc Transformer coupled power transmitting and isolated switching circuit
JPS5710740B2 (en) * 1974-06-17 1982-02-27
US4024467A (en) * 1974-07-15 1977-05-17 Sybron Corporation Method for controlling power during electrosurgery
US3923063A (en) * 1974-07-15 1975-12-02 Sybron Corp Pulse control circuit for electrosurgical units
US3946738A (en) * 1974-10-24 1976-03-30 Newton David W Leakage current cancelling circuit for use with electrosurgical instrument
US3964487A (en) * 1974-12-09 1976-06-22 The Birtcher Corporation Uncomplicated load-adapting electrosurgical cutting generator
US4331149A (en) * 1975-01-23 1982-05-25 Dentsply Research And Development Corp. Electrosurgical device
DE2504280C3 (en) * 1975-02-01 1980-08-28 Hans Heinrich Prof. Dr. 8035 Gauting Meinke Device for cutting and / or coagulating human tissue with high frequency current
US4030501A (en) * 1976-01-26 1977-06-21 Minnesota Mining And Manufacturing Company High frequency-high voltage level electrosurgical unit
US4051855A (en) * 1976-02-06 1977-10-04 Ipco Hospital Supply Corporation, Whaledent International Division Electrosurgical unit
US4094320A (en) * 1976-09-09 1978-06-13 Valleylab, Inc. Electrosurgical safety circuit and method of using same
FR2414812A1 (en) * 1978-01-11 1979-08-10 Dolley Roger Accidental burns protector for HF incision creating generator - has support table metallic plate ensuring max. skin contact to reduce HF current density
IT1123969B (en) * 1979-01-23 1986-05-07 Capurro Sergio TIMED DIATHERMOCAUTERY AND KNOWN AS TIMER IMMUNE TO STURBI OF ELECTROMAGNETIC ORIGIN
DE2946728A1 (en) * 1979-11-20 1981-05-27 Erbe Elektromedizin GmbH & Co KG, 7400 Tübingen HF surgical appts. for use with endoscope - provides cutting or coagulation current at preset intervals and of selected duration
US4454883A (en) * 1982-02-16 1984-06-19 Therafield Holdings Limited Electrotherapeutic apparatus
US4510937A (en) * 1983-10-28 1985-04-16 International Medical Electronics, Ltd. Method and apparatus for operating dual diathermy applicator heads in close proximity to one another
US4727874A (en) * 1984-09-10 1988-03-01 C. R. Bard, Inc. Electrosurgical generator with high-frequency pulse width modulated feedback power control
FR2595239A1 (en) * 1986-03-07 1987-09-11 Fellus Victor Hair removal apparatus
US5743905A (en) * 1995-07-07 1998-04-28 Target Therapeutics, Inc. Partially insulated occlusion device
US6019757A (en) * 1995-07-07 2000-02-01 Target Therapeutics, Inc. Endoluminal electro-occlusion detection apparatus and method
US6033399A (en) 1997-04-09 2000-03-07 Valleylab, Inc. Electrosurgical generator with adaptive power control
US7137980B2 (en) 1998-10-23 2006-11-21 Sherwood Services Ag Method and system for controlling output of RF medical generator
US7901400B2 (en) 1998-10-23 2011-03-08 Covidien Ag Method and system for controlling output of RF medical generator
US7364577B2 (en) 2002-02-11 2008-04-29 Sherwood Services Ag Vessel sealing system
US20040167508A1 (en) 2002-02-11 2004-08-26 Robert Wham Vessel sealing system
EP1501435B1 (en) 2002-05-06 2007-08-29 Covidien AG Blood detector for controlling an esu
EP1524946B1 (en) 2002-07-25 2012-10-17 Covidien AG Electrosurgical pencil with drag sensing capability
US7244257B2 (en) 2002-11-05 2007-07-17 Sherwood Services Ag Electrosurgical pencil having a single button variable control
US7255694B2 (en) 2002-12-10 2007-08-14 Sherwood Services Ag Variable output crest factor electrosurgical generator
US7044948B2 (en) 2002-12-10 2006-05-16 Sherwood Services Ag Circuit for controlling arc energy from an electrosurgical generator
AU2004212990B2 (en) 2003-02-20 2009-12-10 Covidien Ag Motion detector for controlling electrosurgical output
US8012150B2 (en) 2003-05-01 2011-09-06 Covidien Ag Method and system for programming and controlling an electrosurgical generator system
EP2258294B1 (en) 2003-10-23 2013-01-09 Covidien AG Redundant temperature monitoring in electrosurgical systems for safety mitigation
AU2003286644B2 (en) 2003-10-23 2009-09-10 Covidien Ag Thermocouple measurement circuit
US7396336B2 (en) 2003-10-30 2008-07-08 Sherwood Services Ag Switched resonant ultrasonic power amplifier system
US7241294B2 (en) 2003-11-19 2007-07-10 Sherwood Services Ag Pistol grip electrosurgical pencil with manual aspirator/irrigator and methods of using the same
US7879033B2 (en) * 2003-11-20 2011-02-01 Covidien Ag Electrosurgical pencil with advanced ES controls
US7156842B2 (en) 2003-11-20 2007-01-02 Sherwood Services Ag Electrosurgical pencil with improved controls
US7503917B2 (en) * 2003-11-20 2009-03-17 Covidien Ag Electrosurgical pencil with improved controls
US7131860B2 (en) 2003-11-20 2006-11-07 Sherwood Services Ag Connector systems for electrosurgical generator
US7156844B2 (en) * 2003-11-20 2007-01-02 Sherwood Services Ag Electrosurgical pencil with improved controls
US7300435B2 (en) 2003-11-21 2007-11-27 Sherwood Services Ag Automatic control system for an electrosurgical generator
US7766905B2 (en) 2004-02-12 2010-08-03 Covidien Ag Method and system for continuity testing of medical electrodes
US7780662B2 (en) 2004-03-02 2010-08-24 Covidien Ag Vessel sealing system using capacitive RF dielectric heating
US7628786B2 (en) 2004-10-13 2009-12-08 Covidien Ag Universal foot switch contact port
US9474564B2 (en) 2005-03-31 2016-10-25 Covidien Ag Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator
US7500974B2 (en) 2005-06-28 2009-03-10 Covidien Ag Electrode with rotatably deployable sheath
US7828794B2 (en) 2005-08-25 2010-11-09 Covidien Ag Handheld electrosurgical apparatus for controlling operating room equipment
US8734438B2 (en) 2005-10-21 2014-05-27 Covidien Ag Circuit and method for reducing stored energy in an electrosurgical generator
US7947039B2 (en) 2005-12-12 2011-05-24 Covidien Ag Laparoscopic apparatus for performing electrosurgical procedures
US8685016B2 (en) 2006-01-24 2014-04-01 Covidien Ag System and method for tissue sealing
US9186200B2 (en) 2006-01-24 2015-11-17 Covidien Ag System and method for tissue sealing
CA2574935A1 (en) 2006-01-24 2007-07-24 Sherwood Services Ag A method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm
US8216223B2 (en) 2006-01-24 2012-07-10 Covidien Ag System and method for tissue sealing
US8147485B2 (en) 2006-01-24 2012-04-03 Covidien Ag System and method for tissue sealing
US7972328B2 (en) 2006-01-24 2011-07-05 Covidien Ag System and method for tissue sealing
CA2574934C (en) 2006-01-24 2015-12-29 Sherwood Services Ag System and method for closed loop monitoring of monopolar electrosurgical apparatus
US7513896B2 (en) 2006-01-24 2009-04-07 Covidien Ag Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
US7651493B2 (en) 2006-03-03 2010-01-26 Covidien Ag System and method for controlling electrosurgical snares
US7648499B2 (en) 2006-03-21 2010-01-19 Covidien Ag System and method for generating radio frequency energy
US7651492B2 (en) 2006-04-24 2010-01-26 Covidien Ag Arc based adaptive control system for an electrosurgical unit
US20070260240A1 (en) 2006-05-05 2007-11-08 Sherwood Services Ag Soft tissue RF transection and resection device
US8753334B2 (en) 2006-05-10 2014-06-17 Covidien Ag System and method for reducing leakage current in an electrosurgical generator
US8034049B2 (en) 2006-08-08 2011-10-11 Covidien Ag System and method for measuring initial tissue impedance
US7731717B2 (en) 2006-08-08 2010-06-08 Covidien Ag System and method for controlling RF output during tissue sealing
US7637907B2 (en) 2006-09-19 2009-12-29 Covidien Ag System and method for return electrode monitoring
US7794457B2 (en) 2006-09-28 2010-09-14 Covidien Ag Transformer for RF voltage sensing
USD574323S1 (en) 2007-02-12 2008-08-05 Tyco Healthcare Group Lp Generator
US8777941B2 (en) 2007-05-10 2014-07-15 Covidien Lp Adjustable impedance electrosurgical electrodes
US7834484B2 (en) 2007-07-16 2010-11-16 Tyco Healthcare Group Lp Connection cable and method for activating a voltage-controlled generator
US8506565B2 (en) 2007-08-23 2013-08-13 Covidien Lp Electrosurgical device with LED adapter
US8216220B2 (en) 2007-09-07 2012-07-10 Tyco Healthcare Group Lp System and method for transmission of combined data stream
US8512332B2 (en) 2007-09-21 2013-08-20 Covidien Lp Real-time arc control in electrosurgical generators
US8235987B2 (en) 2007-12-05 2012-08-07 Tyco Healthcare Group Lp Thermal penetration and arc length controllable electrosurgical pencil
US8636733B2 (en) * 2008-03-31 2014-01-28 Covidien Lp Electrosurgical pencil including improved controls
US8597292B2 (en) 2008-03-31 2013-12-03 Covidien Lp Electrosurgical pencil including improved controls
US8632536B2 (en) 2008-03-31 2014-01-21 Covidien Lp Electrosurgical pencil including improved controls
US8226639B2 (en) 2008-06-10 2012-07-24 Tyco Healthcare Group Lp System and method for output control of electrosurgical generator
US8162937B2 (en) 2008-06-27 2012-04-24 Tyco Healthcare Group Lp High volume fluid seal for electrosurgical handpiece
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US11564732B2 (en) 2019-12-05 2023-01-31 Covidien Lp Tensioning mechanism for bipolar pencil
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BE556940A (en) * 1956-04-26
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DE1099658B (en) * 1959-04-29 1961-02-16 Siemens Reiniger Werke Ag Automatic switch-on device for high-frequency surgical devices
US3127895A (en) * 1962-07-02 1964-04-07 Dynapower System Corp Therapeutic pulse generation and control circuit
US3478744A (en) * 1964-12-30 1969-11-18 Harry Leiter Surgical apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154881A (en) * 1984-01-25 1985-09-18 Matburn Electrosurgical unit
GB2225534A (en) * 1988-08-11 1990-06-06 Kontron Holding Ag Electrosurgical apparatus
US6228081B1 (en) 1999-05-21 2001-05-08 Gyrus Medical Limited Electrosurgery system and method
USRE39358E1 (en) * 1999-05-21 2006-10-17 Gyrus Medical Limited Electrosurgery system and method
USRE41921E1 (en) 1999-05-21 2010-11-09 Gyrus Medical Limited Electrosurgery system and method

Also Published As

Publication number Publication date
US3675655A (en) 1972-07-11
DE2140832A1 (en) 1973-02-22
CH546078A (en) 1974-02-28
BE786077A (en) 1972-11-03
NL7209571A (en) 1974-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee