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1. WO2000042928 - A METHOD AND AN APPARATUS FOR CONTROLLED DESTRUCTION OF TISSUE

Publication Number WO/2000/042928
Publication Date 27.07.2000
International Application No. PCT/SE2000/000123
International Filing Date 21.01.2000
Chapter 2 Demand Filed 12.07.2000
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 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 2018/00434
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
00315for treatment of particular body parts
00434Neural system
A61B 2018/00577
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
00571for achieving a particular surgical effect
00577Ablation
A61B 2018/00642
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
00636Sensing and controlling the application of energy
00642with feedback, i.e. closed loop control
A61B 2018/00761
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
00636Sensing and controlling the application of energy
00696Controlled or regulated parameters
00761Duration
A61B 2018/00791
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
00636Sensing and controlling the application of energy
00773Sensed parameters
00791Temperature
Applicants
  • ELEKTA AB [SE/SE]; P.O. Box 7593 S-103 93 Stockholm, SE (AllExceptUS)
  • WÅRDELL, Karin [SE/SE]; SE (UsOnly)
  • ERIKSSON, Ola [SE/SE]; SE (UsOnly)
  • NILSSON, Gert [SE/SE]; SE (UsOnly)
Inventors
  • WÅRDELL, Karin; SE
  • ERIKSSON, Ola; SE
  • NILSSON, Gert; SE
Agents
  • AWAPATENT AB; Box 11394 S-404 28 Göteborg, SE
Priority Data
9900202-425.01.1999SE
Publication Language English (EN)
Filing Language Swedish (SV)
Designated States
Title
(EN) A METHOD AND AN APPARATUS FOR CONTROLLED DESTRUCTION OF TISSUE
(FR) PROCEDE ET APPAREIL POUR CONTROLER LA DESTRUCTION D'UN TISSU
Abstract
(EN)
The present invention relates to an apparatus for destroying a predetermined defined volume (10) in a tissue, such as generating controlled coagulation, so-called lesion, in the brain. More particularly, the apparatus comprises a main unit (1) for transmitting a tissue-destroying medium comprising a control unit (3) for controlling the medium transmission, and a transferring means (4), such as an electrode, which is connected to said main unit and adapted to be inserted into the predetermined volume for transferring the transmitted medium to the volume. The apparatus according to the invention is characterised in that it further comprises a measuring means (5-8) for measuring at least one optical characteristic of the predetermined volume, the optical characteristic varying with the size of the destroyed volume, the measuring means being connected to said control unit for controlling the supply of the tissue-destroying medium on the basis of the measured optical characteristic.
(FR)
La présente invention concerne un appareil servant à détruire un volume prédéterminé (10) d'un tissu, par un contrôle de coagulation, soi-disant lésion, dans le cerveau. Plus particulièrement, l'appareil comprend une unité principale (1) destinée à acheminer un moyen de destruction de tissu équipé d'une unité de commande (3) pour contrôler l'acheminement du moyen, et un moyen de transfert (4), tel qu'une électrode, raccordé à ladite unité principale et adapté pour s'insérer dans le volume prédéterminé en vue d'acheminer le moyen transféré audit volume. L'appareil de l'invention se caractérise en ce qu'il comprend en outre un dispositif de mesure (5-8) servant à mesurer au moins une caractéristique optique du volume prédéterminé, ladite caractéristique optique variant en fonction de la taille du volume prédéterminé. Le dispositif de mesure est relié à ladite unité de commande pour contrôler l'acheminement du moyen de destruction de tissu sur la base de la caractéristique optique mesurée.
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