EP0292621A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Contact or insertion laser probe having wide angle radiation
Assignee: Surgical Laser Technologies Inc
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Filing: 1987-05-26
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Granted: —
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Expires: 2007-05-26
Abstract
Abstract A laser medical probe (10) adapted for direct contact with, or insertion into, tissue undergoing laser treatment. The probe includes a diffusing portion (12) defined by a roughened or frosted surface which serves to irregularly reflect and refract laser energy incident thereon. The probe exhibits a broad radiation pattern including radial and scattered radiation along the length of the probe. The probe is preferably of conical shape to facilitate insertion into tissue. A flange (16) may advantageously be placed on the probe to limit the tissue insertion depth thereof. The diffusing surface is generally along the outside conical surface of the probes although probes having a hollow center and roughened inside surface are contemplated.
Inventors
- 👤 Norio Daikuzono
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 05:15
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61N; A61N5/00; A61N5/06; A61N5/0601; A61N5/067; A61B2018/2255; A61B2018/2261
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
77 words
A medical laser probe for conveying laser energy from the output end of an optical laser waveguide to a tissue undergoing laser treatment, the probe comprising laser transmissive material having a laser energy input region for receiving laser energy from an optical waveguide and a laser energy radiation surface, the radiation surface defining an irregular and uneven contour for diffusing laser energy incident thereon whereby the laser radiation from the probe defines a broad highly diffused pattern.
Claim 2
Dependent Claim
77 words
A medical laser probe for conveying laser energy from the output end of an optical laser waveguide to a tissue undergoing laser treatment, the probe comprising laser transmissive material having a laser energy input region for receiving laser energy from an optical waveguide and a laser energy radiation surface, the radiation surface defining an irregular and uneven contour for diffusing laser energy incident thereon whereby the laser radiation from the probe defines a broad highly diffused pattern.
Claim 3
Dependent Claim
34 words
A medical laser probe as claimed in claim 1, wherein the radiation surface forms an irregular and uneven contour defined by recesses of between 1 and 100 microns for diffusing laser energy incident thereon.
Claim 4
Dependent Claim
40 words
A medical probe as claimed in claim 1 or 2 including a flange thereon, the radiation surface extending from the flange whereby said flange serves as a stop limiting the degree of insertion of the probe into tissue undergoing treatment.
Claim 5
Dependent Claim
42 words
A medical probe as claimed in claim 1, 2 or 3, wherein the radiation surface defines a conical shape whereby the probe may be inserted into tissue undergoing treatment by first advancing the narrowed region of the conical surface into the tissue.
Claim 6
Dependent Claim
73 words
A medical laser probe for conveying laser energy from the output end of an optical laser waveguide to a tissue undergoing laser treatment, the probe comprises laser transmissive material surrounding the tip end of said optical waveguide thereby forming a laser energy receiving probe surface and a laser energy radiation probe surface, the receiving probe surface defining an irregular and uneven contour whereby laser energy radiated from the probe is diffused and scattered.
Claim 7
Dependent Claim
73 words
A medical laser probe for conveying laser energy from the output end of an optical laser waveguide to a tissue undergoing laser treatment, the probe comprises laser transmissive material surrounding the tip end of said optical waveguide thereby forming a laser energy receiving probe surface and a laser energy radiation probe surface, the receiving probe surface defining an irregular and uneven contour whereby laser energy radiated from the probe is diffused and scattered.
Claim 8
Dependent Claim
90 words
A medical laser probe for conveying laser energy from the output end of an optical laser waveguide to a tissue undergoing laser treatment, the probe comprising laser transmissive material surrounding the tip end of said optical waveguide thereby forming a hollow inside region between the end of the optical laser waveguide and an inside surface of the probe, the inside surface having an irregular and uneven contour whereby laser energy impinging on said surface is irregularly refracted and reflected whereby the laser emitted from the probe is diffused and scattered.
Claim 9
Dependent Claim
90 words
A medical laser probe for conveying laser energy from the output end of an optical laser waveguide to a tissue undergoing laser treatment, the probe comprising laser transmissive material surrounding the tip end of said optical waveguide thereby forming a hollow inside region between the end of the optical laser waveguide and an inside surface of the probe, the inside surface having an irregular and uneven contour whereby laser energy impinging on said surface is irregularly refracted and reflected whereby the laser emitted from the probe is diffused and scattered.
Claim 10
Dependent Claim
17 words
A medical probe as claimed in claim 6, wherein the outer surface of said probe is smooth.
References Cited (Backward Citations)
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