New! Search for patents from more than 100 countries including Australia, Brazil, Sweden and more

GB1014995A - Improvements in or relating to high-frequency surgical apparatus - Google Patents

Improvements in or relating to high-frequency surgical apparatus

Info

Publication number
GB1014995A
GB1014995A GB4404962A GB4404962A GB1014995A GB 1014995 A GB1014995 A GB 1014995A GB 4404962 A GB4404962 A GB 4404962A GB 4404962 A GB4404962 A GB 4404962A GB 1014995 A GB1014995 A GB 1014995A
Authority
GB
United Kingdom
Prior art keywords
relay
resistor
circuit
gas
generator
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
GB4404962A
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.)
Siemens Reiniger Werke AG
Original Assignee
Siemens Reiniger Werke AG
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
Priority to DES76894A priority Critical patent/DE1159574B/en
Application filed by Siemens Reiniger Werke AG filed Critical Siemens Reiniger Werke AG
Publication of GB1014995A publication Critical patent/GB1014995A/en
Application status is Expired legal-status Critical

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
    • A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
    • 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
    • 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
    • A61B18/14—Probes or electrodes 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002—Irrigation
    • A61B2218/005—Irrigation using gas or vapor, e.g. for protection or purging

Abstract

1,014,995. Electromedical apparatus. SIEMENS-REINIGER-WERKE A.G. Nov. 28, 1962 [Nov. 29,1961], No. 45049/62. Heading A5R. In high-frequency surgical apparatus in which flow of protective gas is maintained around the active electrode, a sensitive electrical element positioned in the gas stream ensures that there is no output from the H.F. generator unless the gas is flowing. In one form, the operation of the apparatus is initiated by depressing a foot switch 1 which energizes a relay A and thereby opens an electromagnetic valve 5 to allow gas to flow from a cylinder 7 to the operating handpiece 10. It also passes current through a resistor 20 having a negative temperature coefficient so as to impose a delay on the energization of a relay B which, at contact b 1 prepares a circuit for energizing the oscillation generator 17. The handpiece 10 incorporates a negative temperature coefficient resistor 12, through which current is flowing from a source such as 24, and the cooling caused by the flow of gas causes its resistance to increase and raise the potential of the lower junction of resistor 25 sufficiently to trigger a monostable circuit 13 and energize a relay C which completes the control circuit of the generator 17. If the gas supply fails, the resistance of resistor 12 decreases, the circuit 13 returns to normal and the oscillation generator 17 is cut off. It a fault, such as breakage or damage, occurs in the circuit including the resistor 12 the full voltage of the source 24 is then impressed on the input of a low-sensitivity amplifier 14 which thereupon energizes a relay D to interrupt the circuit of relay B and cut off the oscillation generator.
GB4404962A 1961-11-29 1962-11-28 Improvements in or relating to high-frequency surgical apparatus Expired GB1014995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES76894A DE1159574B (en) 1961-11-29 1961-11-29 Safety device for high-frequency surgical equipment

Publications (1)

Publication Number Publication Date
GB1014995A true GB1014995A (en) 1965-12-31

Family

ID=7506443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4404962A Expired GB1014995A (en) 1961-11-29 1962-11-28 Improvements in or relating to high-frequency surgical apparatus

Country Status (3)

Country Link
CH (1) CH404851A (en)
DE (1) DE1159574B (en)
GB (1) GB1014995A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188845A (en) * 1986-04-08 1987-10-14 Bard Inc C R Electrosurgical conductive gas stream technique of achieving improved eschar for coagulation
US5256138A (en) * 1990-10-04 1993-10-26 The Birtcher Corporation Electrosurgical handpiece incorporating blade and conductive gas functionality
USRE34780E (en) * 1986-04-08 1994-11-08 Birtcher Medical Systems, Inc. Electrosurgical conductive gas stream equipment
GB2311226A (en) * 1996-03-21 1997-09-24 Valleylab Inc Concurrent supply of inert gas and power to an electrosurgical pencil
US7601150B2 (en) 2001-06-22 2009-10-13 Erbe Elektromedizin Gmbh Method and apparatus for plasma surgery
US7927330B2 (en) 1999-10-05 2011-04-19 Covidien Ag Multi-port side-fire coagulator
US8057470B2 (en) 2007-08-30 2011-11-15 Conmed Corporation Integrated smoke evacuation electrosurgical pencil and method
US8182480B2 (en) 2008-08-19 2012-05-22 Tyco Healthcare Group Lp Insulated tube for suction coagulator
US8226642B2 (en) 2008-08-14 2012-07-24 Tyco Healthcare Group Lp Surgical gas plasma ignition apparatus and method
US8226643B2 (en) 2004-02-03 2012-07-24 Covidien Ag Gas-enhanced surgical instrument with pressure safety feature
US8286339B2 (en) 2009-02-18 2012-10-16 Tyco Healthcare Group Lp Two piece tube for suction coagulator
US8328804B2 (en) 2008-07-24 2012-12-11 Covidien Lp Suction coagulator
US8444641B2 (en) 2009-02-18 2013-05-21 Covidien Lp Two piece tube for suction coagulator
US8454600B2 (en) 2009-02-18 2013-06-04 Covidien Lp Two piece tube for suction coagulator
US8460291B2 (en) 2009-02-18 2013-06-11 Covidien Lp Two piece tube for suction coagulator
US8753341B2 (en) 2009-06-19 2014-06-17 Covidien Lp Thermal barrier for suction coagulator
US9554843B2 (en) 2006-09-01 2017-01-31 Conmed Corporation Adapter and method for converting gas-enhanced electrosurgical coagulation instrument for cutting

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715372A (en) * 1985-06-12 1987-12-29 Philippbar Jay E Gas insufflation apparatus for use with an arthroscopic laser system
DE10228791A1 (en) * 2002-06-27 2004-01-29 Erbe Elektromedizin Gmbh Connecting device for an electrosurgical instrument

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618267A (en) * 1949-03-11 1952-11-18 Hanriot Raymond Control means for electrosurgical cutting instruments
US2708933A (en) * 1951-05-17 1955-05-24 August William Gas blanketed electro-surgical device

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188845A (en) * 1986-04-08 1987-10-14 Bard Inc C R Electrosurgical conductive gas stream technique of achieving improved eschar for coagulation
US4781175A (en) * 1986-04-08 1988-11-01 C. R. Bard, Inc. Electrosurgical conductive gas stream technique of achieving improved eschar for coagulation
GB2188845B (en) * 1986-04-08 1989-11-29 Bard Inc C R Electrosurgical conductive gas stream technique of achieving improved eschar for coagulation
USRE34780E (en) * 1986-04-08 1994-11-08 Birtcher Medical Systems, Inc. Electrosurgical conductive gas stream equipment
US5256138A (en) * 1990-10-04 1993-10-26 The Birtcher Corporation Electrosurgical handpiece incorporating blade and conductive gas functionality
GB2311226A (en) * 1996-03-21 1997-09-24 Valleylab Inc Concurrent supply of inert gas and power to an electrosurgical pencil
US7927330B2 (en) 1999-10-05 2011-04-19 Covidien Ag Multi-port side-fire coagulator
US7601150B2 (en) 2001-06-22 2009-10-13 Erbe Elektromedizin Gmbh Method and apparatus for plasma surgery
US8226643B2 (en) 2004-02-03 2012-07-24 Covidien Ag Gas-enhanced surgical instrument with pressure safety feature
US9554843B2 (en) 2006-09-01 2017-01-31 Conmed Corporation Adapter and method for converting gas-enhanced electrosurgical coagulation instrument for cutting
US8057470B2 (en) 2007-08-30 2011-11-15 Conmed Corporation Integrated smoke evacuation electrosurgical pencil and method
US8808287B2 (en) 2008-07-24 2014-08-19 Covidien Lp Suction coagulator
US8328804B2 (en) 2008-07-24 2012-12-11 Covidien Lp Suction coagulator
US9028490B2 (en) 2008-07-24 2015-05-12 Covidien Lp Suction coagulator
US8226642B2 (en) 2008-08-14 2012-07-24 Tyco Healthcare Group Lp Surgical gas plasma ignition apparatus and method
US8182480B2 (en) 2008-08-19 2012-05-22 Tyco Healthcare Group Lp Insulated tube for suction coagulator
US8454600B2 (en) 2009-02-18 2013-06-04 Covidien Lp Two piece tube for suction coagulator
US8460291B2 (en) 2009-02-18 2013-06-11 Covidien Lp Two piece tube for suction coagulator
US8286339B2 (en) 2009-02-18 2012-10-16 Tyco Healthcare Group Lp Two piece tube for suction coagulator
US8444641B2 (en) 2009-02-18 2013-05-21 Covidien Lp Two piece tube for suction coagulator
US8753341B2 (en) 2009-06-19 2014-06-17 Covidien Lp Thermal barrier for suction coagulator

Also Published As

Publication number Publication date
DE1159574B (en) 1963-12-19
CH404851A (en) 1965-12-31

Similar Documents

Publication Publication Date Title
US4685459A (en) Device for bipolar high-frequency coagulation of biological tissue
US4710699A (en) Electronic switching device
US3368212A (en) Gas flow monitor
GB855459A (en) Improvements in or relating to electro-surgical apparatus
US4122854A (en) Electrosurgical apparatus
US3005915A (en) Bistable transistor amplifier
US3195816A (en) Low-voltage sprinkler control system
US2923863A (en) Transistorized timing circuit
US2848653A (en) Transistor gating circuit
US2982887A (en) Combined amplitude comparator and indicator
GB897961A (en) Improvements in or relating to automatic circuit-closing devices for high-frequency surgical appliances
JPS5582252A (en) Water heater
GB735755A (en) Improvements in and relating to the protection of electrical circuits
US3046470A (en) Transistor control circuits
US3681662A (en) Method of monitoring the electrical behavior of a high-intensity glow discharge for metallurgical processes
US2677039A (en) Soldering device and its operating system
GB1238198A (en)
DE2424716A1 (en) Locomotive transformer current surge suppressor - initiates switch-on relative to total transformer flux value
US2394708A (en) Thermostat circuit
US3287977A (en) Threadline temperature monitor
DE2816420A1 (en) Power adjustment circuit for hot air dryer - has heating resistor in AC circuit switched at zero voltage by trial ignited by special switch
US2673559A (en) Electrocardiograph
JPS54158850A (en) Driver circuit of field effect transistor
GB1104719A (en) The maintenance of a desired mean temperature in a length of material
JPS5735422A (en) Semiconductor circuit