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1. WO2006092565 - SURGICAL INSTRUMENT AND METHOD

Publication Number WO/2006/092565
Publication Date 08.09.2006
International Application No. PCT/GB2006/000661
International Filing Date 24.02.2006
IPC
A61B 18/14 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
CPC
A61B 17/32
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
32Surgical cutting instruments
A61B 17/32002
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
32Surgical cutting instruments
320016Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
32002with continuously rotating, oscillating or reciprocating cutting instruments
A61B 18/148
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
148having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
A61B 2018/00083
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
00053Mechanical features of the instrument of device
00059Material properties
00071Electrical conductivity
00083low, i.e. electrically insulating
A61B 2018/00208
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
00053Mechanical features of the instrument of device
00184Moving parts
00202rotating
00208actively driven, e.g. by a motor
A61B 2018/1497
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
1497Electrodes covering only part of the probe circumference
Applicants
  • GYRUS ENT, L.L.C. [US]/[US] (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW)
  • GYRUS MEDICAL LIMITED [GB]/[GB] (LS)
  • RYAN, Phillip, A. [US]/[US] (UsOnly)
Inventors
  • RYAN, Phillip, A.
Agents
  • PRATT, David, Martin
Priority Data
60/658,14604.03.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SURGICAL INSTRUMENT AND METHOD
(FR) INSTRUMENT CHIRURGICAL ET PROCEDE
Abstract
(EN)
A surgical instrument comprises a hollow tube (18) having a cutting window (16) at the distal end portion. An inner tube (15) is disposed within the tube (18) and is mounted for rotation about its longitudinal axis. A cutting tool (17) is located at the distal end of the tube (15), and is positioned adjacent to the cutting window (16). An outer tube (14) is provided over the tube (18). A motor (5) is provided for rotating the inner tube (15), and saline is fed to the cutting window (16) via a passageway (25) between the tubes (15) and (18). The inner tube (15) has a central lumen (24) through which tissue cut by the cutting tool (17) is removed under the action of a source of suction (12). The outer surface of the tube 18 is covered with an electrically insulating layer (22) and coagulating RF signals are supplied between the tube (18) and the outer tube (14) so as to coagulate tissue at the cutting window (16). Additional apertures (40, 42; 43, 45) in the outer tube (14) and the insulating layer (22) are aligned such that a portion of the hollow tube (18) is exposed other than in the area of the cutting window (16).
(FR)
L'invention concerne un instrument chirurgical qui comporte un tube creux (18) muni d'une fenêtre de coupe (16) au niveau de la portion d'extrémité distale. Un tube intérieur (15) est disposé à l'intérieur du tube (18) et est monté tournant sur son axe longitudinal. Un outil de coupe (17) est situé au niveau de l'extrémité distale du tube (15), et est positionné à côté de la fenêtre de coupe (16). Un tube extérieur (14) recouvre le tube (18). Selon l'invention, un moteur (5) fait tourner le tube intérieur (15), et une solution saline est alimentée vers la fenêtre de coupe (16) par l'intermédiaire d'un passage (25) entre les tubes (15) et (18). Le tube intérieur (15) a une lumière centrale (24) à travers laquelle le tissu découpé par l'outil de coupe (17) est enlevé sous l'action d'une source d'aspiration (12). La surface extérieure du tube (18) est recouverte d'une couche électro-isolante (22) et des signaux de radiofréquence coagulants sont émis entre le tube (18) et le tube extérieur (14) de façon à ce que le tissu coagule au niveau de la fenêtre de coupe (16). Des ouvertures supplémentaires (40, 42 ; 43, 45) dans le tube extérieur (14) et la couche isolante (22) sont alignées de sorte qu'une portion du tube creux (18) est exposée à un autre endroit que dans la zone de la fenêtre de coupe (16).
Also published as
Latest bibliographic data on file with the International Bureau