GB618528A - Improvements in or relating to electrosurgical resecting instrument - Google Patents

Improvements in or relating to electrosurgical resecting instrument

Info

Publication number
GB618528A
GB618528A GB20460/46A GB2046046A GB618528A GB 618528 A GB618528 A GB 618528A GB 20460/46 A GB20460/46 A GB 20460/46A GB 2046046 A GB2046046 A GB 2046046A GB 618528 A GB618528 A GB 618528A
Authority
GB
United Kingdom
Prior art keywords
rod
collar
electrode
shaft
rearward
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
GB20460/46A
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.)
American Cystoscope Makers Inc
Original Assignee
American Cystoscope Makers 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 American Cystoscope Makers Inc filed Critical American Cystoscope Makers Inc
Publication of GB618528A publication Critical patent/GB618528A/en
Expired legal-status Critical Current

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
    • A61B18/14Probes or electrodes therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238Type of minimally invasive operation
    • A61B2017/00274Prostate operation, e.g. prostatectomy, turp, bhp treatment
    • 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
    • A61B2018/00315Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00547Prostate
    • 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
    • A61B18/14Probes or electrodes therefor
    • A61B2018/1405Electrodes having a specific shape
    • A61B2018/1407Loop

Abstract

618,528. Diathermic cutting endoscopes. AMERICAN CYSTOSCOPE MAKERS, Inc. July 9, 1946, No.. 20460. Convention date, July 10, 1945. [Class 81 (ii)] A surgical instrument for removing protrusions, tissue growths &c. with the aid of a highfrequency electric current, comprises at least one high-frequency cutting electrode rotatably supported within a tubular member and positioned at least in part within a fenestra formed in the tubular member, a portion of the electrode intermediate the ends thereof being substantially helical in form, and a motor, such as an electric or fluid actuated motor, for imparting continuous rotation to the electrode. An endoscopic tubular member 15 is provided at its forward end with a beak 16 and a lateral fenestra 18, and is screwed at its rearward end into a collar 19 provided with a recess 20 and passage 21 in fluid communication with a conduit 22 and the interior of the tube 15. A removable device in tube 15 comprises a unitary bundle of four tubes, of which one (24) accommodates a telescope. Two others are used for introducing and withdrawing an irrigating fluid, and tube 27 having a longitudinal slot supports an electrode shaft. A depending support 29 is spaced apart from the forward ends of the tubes which are secured at their rearward ends to a collar 32 which is in fluid tight connection with collar 19, the former having a flange 33 with circumferentially spaced tapped openings communicating with the irrigation tubes. The collar 32 and associated parts are mounted on a support which includes a pistol grip handle 45 having a top wall 46 containing a compartment 49 housing a motor P and speed-reducing gear R. Above the compartment 49 is a block of insulating material 51 to which is attached a bridge 52 having a depending arm 58 through an opening in which passes a telescope 65 fitted with an electric lamp 67, eye-piece 70 and electric plug 72. Within tube 27 is disposed a hollow rotatable shaft 75 containing an electrically conductive rod 77 insulated by a sheath 76. A preferred form of cutting electrode consists of two wires 78 each of a helical configuration, the ends of which are embedded in the end of rod 77 and a shaft-like element of insulating material 79 rotatably supported in the beak 16 ; other forms of electrodes include a helical wire as such or secured at its ends to a co-axial rod; and a transparent core member, e.g. of glass, having a rounded end portion to fit rotatably in support 29 and a recessed rearward end to engage end of rod 77, the core being shaped with two helical grooves one of which carries the electrode wire. The rearward end of rod 77 communicates through a bearing 82 and terminal 84 with a source of high frequency current. A collar 80 mounted on rod 77 bears against a bush 82 to restrain rod 77 and shaft 75 against rearward movement and to prevent forward movement a spring biased detent 86 extends beneath the rod and against the collar 80. The Specification as open to inspection under Sect. 91 describes also an electrode consisting of a wire having a central longitudinal portion parallel with the axis of the shaft, and a forward and rearward crank portion. This subject-matter does not appear in the Specification as accepted.
GB20460/46A 1945-07-10 1946-07-09 Improvements in or relating to electrosurgical resecting instrument Expired GB618528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US618528XA 1945-07-10 1945-07-10

Publications (1)

Publication Number Publication Date
GB618528A true GB618528A (en) 1949-02-23

Family

ID=22038562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20460/46A Expired GB618528A (en) 1945-07-10 1946-07-09 Improvements in or relating to electrosurgical resecting instrument

Country Status (1)

Country Link
GB (1) GB618528A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019930A1 (en) * 1979-06-04 1980-12-10 Olympus Optical Co., Ltd. High frequency electrosurgical instrument for use in an endoscope
DE3601453A1 (en) * 1985-02-25 1986-09-04 Hans E. Prof. Dr.Med. Sachse Endoscope for the removal of tissue
DE3626684A1 (en) * 1986-01-20 1988-02-11 Sachse Hans E Endoscope
FR2705241A1 (en) * 1993-05-13 1994-11-25 Vidamed Inc Medical probe with sytlets.
GB2311468A (en) * 1996-03-27 1997-10-01 Valleylab Inc Electrosurgical interstitial resector
FR2877207A1 (en) * 2004-10-29 2006-05-05 Jacques Hamou DEVICE FOR RESECTING ORGANIC TISSUE USED IN PARTICULAR IN UROLOGY OR HYSTEROSCOPY

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019930A1 (en) * 1979-06-04 1980-12-10 Olympus Optical Co., Ltd. High frequency electrosurgical instrument for use in an endoscope
DE3601453A1 (en) * 1985-02-25 1986-09-04 Hans E. Prof. Dr.Med. Sachse Endoscope for the removal of tissue
DE3626684A1 (en) * 1986-01-20 1988-02-11 Sachse Hans E Endoscope
FR2705241A1 (en) * 1993-05-13 1994-11-25 Vidamed Inc Medical probe with sytlets.
EP0628288A2 (en) * 1993-05-13 1994-12-14 Vidamed, Inc. Medical probe
EP0628288A3 (en) * 1993-05-13 1995-01-18 Vidamed Inc
GB2311468A (en) * 1996-03-27 1997-10-01 Valleylab Inc Electrosurgical interstitial resector
FR2877207A1 (en) * 2004-10-29 2006-05-05 Jacques Hamou DEVICE FOR RESECTING ORGANIC TISSUE USED IN PARTICULAR IN UROLOGY OR HYSTEROSCOPY
WO2006048199A1 (en) * 2004-10-29 2006-05-11 Jacques Hamou Device for the resection and/or ablation of organic tissue by means of a high frequency current
US7789880B2 (en) 2004-10-29 2010-09-07 Jacques Hamou Device for resection and/or ablation of organic tissue by means of high-frequency current

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