GB671497A - Electrical control means for lancets - Google Patents

Electrical control means for lancets

Info

Publication number
GB671497A
GB671497A GB628650A GB628650A GB671497A GB 671497 A GB671497 A GB 671497A GB 628650 A GB628650 A GB 628650A GB 628650 A GB628650 A GB 628650A GB 671497 A GB671497 A GB 671497A
Authority
GB
United Kingdom
Prior art keywords
supply
gas
constriction
sp
march
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
GB628650A
Original Assignee
Raymond Hanriot
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 FR671497X priority Critical
Application filed by Raymond Hanriot filed Critical Raymond Hanriot
Publication of GB671497A publication Critical patent/GB671497A/en
Application status is Expired legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/1206Generators therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636Sensing and controlling the application of energy
    • A61B2018/0066Sensing and controlling the application of energy without feedback, i.e. open loop control

Abstract

671,497. High frequency section. HANRIOT, R. March 13, 1950 [March 11, 1949], No. 6286/50. Class 81 (ii). In an arrangement in which an inert gas is supplied to the electrode of a H.F. cutting instrument the supply of electric power is made dependent on an adequate supply of gas. Contacts S, S<SP>1</SP> are connected in series with the power supply to the H.F. generator 8 and are controlled respectively by differential pressure sensitive elements 5a, 5b connected to opposite ends of a constriction in the gas supply pipe and by a single pressure sensitive element 6. Unless both the pressure drop across the constriction and the output pressure are adequate the power supply to the cutting instrument is interrupted.
GB628650A 1949-03-11 1950-03-13 Electrical control means for lancets Expired GB671497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR671497X 1949-03-11

Publications (1)

Publication Number Publication Date
GB671497A true GB671497A (en) 1952-05-07

Family

ID=9016993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB628650A Expired GB671497A (en) 1949-03-11 1950-03-13 Electrical control means for lancets

Country Status (1)

Country Link
GB (1) GB671497A (en)

Cited By (4)

* 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
US8057470B2 (en) 2007-08-30 2011-11-15 Conmed Corporation Integrated smoke evacuation electrosurgical pencil and method
US9554843B2 (en) 2006-09-01 2017-01-31 Conmed Corporation Adapter and method for converting gas-enhanced electrosurgical coagulation instrument for cutting

Cited By (6)

* 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
US5256138A (en) * 1990-10-04 1993-10-26 The Birtcher Corporation Electrosurgical handpiece incorporating blade and conductive gas functionality
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

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