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1. (CA2155217) TRANSURETHRAL NEEDLE ABLATION DEVICE AND METHOD

Office : Canada
Application Number: 2155217 Application Date: 02.02.1994
Publication Number: 2155217 Publication Date: 18.08.1994
Publication Kind : A1
Prior PCT appl.: Application Number:US1994001257 ; Publication Number: Click to see the data
IPC:
A61B 18/18
A61B 10/00
A61B 18/00
A61B 18/14
A61M 25/01
A61N 1/06
A61N 1/40
A61N 5/04
A61B 17/00
A61B 17/22
A61B 17/24
A61B 19/00
A61M 1/00
A61M 25/00
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
18
by applying electromagnetic radiation, e.g. microwaves
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
10
Other methods or instruments for diagnosis, e.g. for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04
by heating
12
by passing a current through the tissue to be heated, e.g. high-frequency current
14
Probes or electrodes therefor
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
25
Catheters; Hollow probes
01
Introducing, guiding, advancing, emplacing or holding catheters
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1
Electrotherapy; Circuits therefor
02
Details
04
Electrodes
06
for high-frequency therapy
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1
Electrotherapy; Circuits therefor
40
Applying electric fields by inductive or capacitive coupling
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
5
Radiation therapy
02
using microwaves
04
Radiators for near-field treatment
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
22
Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
24
for use in the oral cavity, larynx, bronchial passages or nose; Tongue scrapers
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
19
Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B1/-A61B18/149
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
25
Catheters; Hollow probes
CPC:
A61B 18/00
A61B 10/02
A61B 10/0233
A61B 10/0241
A61B 10/0275
A61B 10/06
A61B 18/14
A61B 18/1442
A61B 18/1477
A61B 18/148
A61B 18/1482
A61B 18/1485
A61B 18/18
A61B 18/1815
A61B 18/24
A61B2017/00084
A61B2017/00092
A61B2017/00101
A61B2017/00106
A61B2017/00274
A61B2017/00292
A61B2017/003
A61B2017/00867
A61B2017/22072
A61B2017/22077
A61B2017/22082
A61B2017/248
A61B2017/2939
A61B2017/3488
A61B2018/00005
A61B2018/00011
A61B2018/00041
A61B2018/00083
A61B2018/00095
A61B2018/00196
A61B2018/0022
A61B2018/00547
A61B2018/00577
A61B2018/00678
A61B2018/00702
A61B2018/00726
A61B2018/00744
A61B2018/00761
A61B2018/00791
A61B2018/00797
A61B2018/00821
A61B2018/00886
A61B2018/0091
A61B2018/00916
A61B2018/00946
A61B2018/00982
A61B2018/1253
A61B2018/126
A61B2018/1273
A61B2018/128
A61B2018/1425
A61B2018/1861
A61B2018/2238
A61B2090/0814
A61B2090/3614
A61B2090/3782
A61B2090/3925
A61B2217/005
A61F2007/0054
A61M 3/0279
A61M 25/0136
A61M2025/0089
A61M2025/0091
A61M2025/0096
A61M2025/018
A61N 1/06
A61N 1/40
A61N 1/403
A61N 5/02
A61N 5/04
A61N 5/045
Applicants:
Inventors: LUNDQUIST, INGEMAR H.
EDWARDS, STUART D.
SHARKEY, HUGH R.
LAX, RONALD G.
BAKER, JAMES A., JR.
SOMMER, PHILLIP R.
Priority Data: 08/012,370 02.02.1993 US
08/061,647 13.05.1993 US
08/062,364 13.05.1993 US
08/109,190 19.08.1993 US
Title: (EN) TRANSURETHRAL NEEDLE ABLATION DEVICE AND METHOD
(FR) DISPOSITIF D'ABLATION TRANSURETRAL A AIGUILLE; METHODE D'EMPLOI
Abstract: front page image
(EN) A transurethral needle ablation device (31) for the treatment of the prostate of a human male using radio frequency energy comprising a sheath (32) having a lumen (36) extending therethrough. A guide tube assembly (51, 52) is slidably mounted in the lumen in the sheath and having a lumen extending therethrough. A needle electrode (116) is slidably mounted in the lumen (84) in the guide tube assembly. An insulating sheath (83) is disposed about the needle electrode so that the distal extremity of the needle electrode is exposed, whereby when the sheath is positioned in the urethra with its distal extremity in the vicinity of the prostate, the needle electrode can be advanced through the urethral wall and into the tissue of the prostate to permit the application of radio frequency energy to the tissue of the prostate surrounding the needle electrode to form a lesion in the prostate.


Also published as:
EP0631514JPH08506259 CN1119418KR1019960700778AU1994061331WO/1994/017856