EP0048402B1
Expired / Lapsed
EP
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Endoscope apparatus
Assignee: Olympus Corp
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Filing: 1981-09-10
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Granted: 1985-08-14
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Expires: 2001-09-10
Abstract
Abstract An endoscope apparatus comprises an endoscope (11) having a microwave antenna (27) provided at the distal end portion. The microwave antenna (27) is provided to selectively receive microwaves radiated from vital tissues in a body cavity and to radiate microwaves for treatment on the vital tissues. The microwaves radiated from the body are converted into biological temperature data corresponding to their intensity, and this temperature data is displayed at a display (22), so that normal tissue may be differentiated from abnormal tissue (affected tissue).
Inventors
- 👤 Yoshihiko Miyamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 10:10
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/01; A61B1/00; A61B1/00064; A61B1/00071; A61B1/0008; A61B18/00; A61B18/18; A61B18/1815; A61B5/05; A61B5/0507
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
181 words
An endoscope apparatus including an endoscope having an insertion tube for insertion into a body cavity, a distal end portion provided at a front end of said insertion tube, and microwave means for receiving and transmitting microwaves, wherein said distal end portion includes an objective lens system, the lens system and microwave means being arranged on the front end of the insertion tube with their axes parallel to that of the tube; said microwave means includes a microwave antenna (27) comprised by an antenna rod (27a), a reflector (27b) for providing directivity in the general direction of the field of view of the objective lens system, and a protective membrane (27c) fitted over the front opening of said reflector (27b), said microwave antenna (27) being provided at said distal end portion for receiving microwaves radiated from vital tissues in the body cavity and for radiating treatment microwaves to the vital tissue; and that said endoscope apparatus further includes receiving means (33) provided for converting the biological radiant microwave to a reception signal corresponding to the intensity of the biological radiant microwave.
Claim 2
Dependent Claim
181 words
An endoscope apparatus including an endoscope having an insertion tube for insertion into a body cavity, a distal end portion provided at a front end of said insertion tube, and microwave means for receiving and transmitting microwaves, wherein said distal end portion includes an objective lens system, the lens system and microwave means being arranged on the front end of the insertion tube with their axes parallel to that of the tube; said microwave means includes a microwave antenna (27) comprised by an antenna rod (27a), a reflector (27b) for providing directivity in the general direction of the field of view of the objective lens system, and a protective membrane (27c) fitted over the front opening of said reflector (27b), said microwave antenna (27) being provided at said distal end portion for receiving microwaves radiated from vital tissues in the body cavity and for radiating treatment microwaves to the vital tissue; and that said endoscope apparatus further includes receiving means (33) provided for converting the biological radiant microwave to a reception signal corresponding to the intensity of the biological radiant microwave.
Claim 3
Dependent Claim
23 words
An endoscope apparatus according to claim 1, characterized in that said microwave antenna (27) is detachably mounted to said distal end portion (23).
Claim 4
Dependent Claim
25 words
An endoscope apparatus according to claim 1, characterized in that a coaxial cable (20) is connected to said microwave antenna (27) for transmitting the microwave.
Claim 5
Dependent Claim
27 words
An endoscope according to claim 1, 2 or 3, characterized in that the biological radiant microwave and treatment microwave are selectively changed over by switching means (32).
Claim 6
Dependent Claim
56 words
An endoscope apparatus according to claim 1, characterized in that said reception signal from said receiving means (33) is input into arithmetic means (34) for calculating and processing said reception signal to compute a temperature of the vital tissues corresponding to the microwave intensity and for inputting temperature data to said displaying means (22) for display.
Claim 7
Dependent Claim
24 words
An endoscope apparatus according to claim 1, characterized in that said protective membrane (27c) is made of a material having a low dielectric constant.
Claim 8
Dependent Claim
19 words
An endoscope apparatus according to claim 1, characterized in that said protective membrane (27c) is made of vinyl chloride.
Claim 9
Dependent Claim
41 words
An endoscope apparatus according to claim 1, characterized in that said microwave antenna (27) has a cover (27d) provided on the outer surface of said reflector (27b), said cover being made of a highly heat resistant insulating material of high strength.
Claim 10
Dependent Claim
19 words
An endoscope apparatus according to claim 8, characterized in that said cover (27d) is made of an epoxy resin.
Claim 11
Dependent Claim
17 words
An endoscope apparatus according to claim 8, characterized in that said cover (27d) is made of ceramic.
References Cited (Backward Citations)
EP0044538A1
Cited
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