US5334206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser light irradiation apparatus
Assignee: Mitsubishi Electric Corp
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Filing: 1992-06-05
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Granted: 1994-08-02
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Expires: 2012-06-05
Abstract
Abstract A laser light irradiation apparatus used for medical treatment of living tissue. According to a preferred embodiment, the apparatus comprises a probe and a plural number of optical fibers. The optical fibers surround the axis of the probe. Laser light goes through each optical fiber and is applied to the probe. Then, the laser light is emitted from the probe to be uniformly irradiate the tissues, and if desired, against the tissues over a broad area. Further, a guide wire and/or a lead wire for detecting a temperature can be placed so as to be coaxial with the probe. Therefore, a perforation of a normal part of the blood vessel can be prevented.
Inventors
- 👤 Norio Daikuzono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:46
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61N; A61N5/00; A61N5/06; A61N5/0601; A61B17/00; A61B2017/00017; A61B2017/00022; A61B2017/00084; A61B2017/00092; A61B17/22; A61B2017/22038; A61B2018/2255; A61B2018/2261; A61N5/067
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
112 words
A laser light irradiation apparatus comprising: a laser light emitting member; an optical fiber for transmitting laser light, having an exposed core section inserted into the light emitting member to apply transmitted light from the fiber into the light emitting member; a surface layer formed on the exposed core section of the optical fiber, said surface layer containing light scattering particles; a second optical fiber, having an exposed core section inserted into the light emitting member to apply transmitted light from the second optical fiber into the light emitting member; and a surface layer formed on the exposed core section of the second optical fiber, said surface layer containing light scattering particles.
Claim 2
Dependent Claim
112 words
A laser light irradiation apparatus comprising: a laser light emitting member; an optical fiber for transmitting laser light, having an exposed core section inserted into the light emitting member to apply transmitted light from the fiber into the light emitting member; a surface layer formed on the exposed core section of the optical fiber, said surface layer containing light scattering particles; a second optical fiber, having an exposed core section inserted into the light emitting member to apply transmitted light from the second optical fiber into the light emitting member; and a surface layer formed on the exposed core section of the second optical fiber, said surface layer containing light scattering particles.
Claim 3
Dependent Claim
41 words
An apparatus according to claim 1, wherein a portion of the scattering particles contained in each of the surface layers are at least partially melted and another portion of the scattering particles contained in each of the surface layers are unmelted.
Claim 4
Dependent Claim
26 words
An apparatus according to claim 1, wherein the light emitting member comprises: a light transmissive synthetic resin, and light absorbing particles dispersed throughout said synthetic resin.
Claim 5
Dependent Claim
32 words
An apparatus according to claim 3, wherein the synthetic resin is selected from the group consisting of: silicone resin, acrylic resin, carbonate resin, polyamide resin, polyethylene resin, urethane resin and polyester resin.
Claim 6
Dependent Claim
24 words
An apparatus according to claim 3, wherein the light absorbing particles are selected from the group consisting of: carbon, iron oxide and manganese dioxide.
Claim 7
Dependent Claim
21 words
An apparatus according to claim 3, wherein the light emitting member further comprises light scattering particles dispersed throughout said synthetic resin.
Claim 8
Dependent Claim
13 words
An apparatus according to claim 1, wherein each exposed core section is tapered.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-01 | 1998-01-31 | 1998-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-01 | 2002-01-31 | 2002-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-01 | 2006-01-31 | 2006-08-02 | $7700.00 | Window Closed / Lapsed |