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US4986628A
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Light guide device for phototherapy
Assignee: RADIOTEKHNICHESY INSTITUT IMENI AKADEMIKA ALMINTSA AKADEMII NAUK SSSR
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Filing: 1988-08-23
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Granted: 1991-01-22
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Expires: 2008-08-23
Abstract
Abstract A light guide device for phototherapy has an optical fiber light guide (1) and a light scattering member at its distal end. A protective envelope (4) of the light guide (1) protrudes beyond an end face (6) of its distal end and defines with this end face (6) a closed space which is filled up entirely with an optically turbid medium (7) which defines the light scattering member (5).
Inventors
- 👤 Alexandr S. Lozhenko
- 👤 Vladimir I. Rechitsky
- 👤 Viktor N. Shendalev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:35
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/02; G02B5/0273; G02B5/0284; A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61N; A61N5/00; A61N5/06; A61N5/0601; G02B23/00; G02B23/24; G02B23/2407; G02B23/2461; G02B23/2469; A61B2018/2255; A61B2018/2261; Y; Y10; Y10S; Y10S385/00; Y10S385/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A light guide device for phototherapy, comprising an optical fiber light guide having a light guiding strand, a light reflecting envelope and a protective envelope, and a light scattering member provided at a distal end of the optical fiber light guide, characterized in that the protective envelope (4) of the optical fiber light guide (1) protrudes beyond an end face (6) of the distal end of the optical fiber light guide (1) and defines a closed space with the end face (6), and in that the light scattering member (5) is made of an optically turbed medium (7) which is contact with the end face (6) of the optical fiber light guide (1) and which fills up the entire closed space.
Claim 2
Dependent Claim
121 words
A light guide device for phototherapy, comprising an optical fiber light guide having a light guiding strand, a light reflecting envelope and a protective envelope, and a light scattering member provided at a distal end of the optical fiber light guide, characterized in that the protective envelope (4) of the optical fiber light guide (1) protrudes beyond an end face (6) of the distal end of the optical fiber light guide (1) and defines a closed space with the end face (6), and in that the light scattering member (5) is made of an optically turbed medium (7) which is contact with the end face (6) of the optical fiber light guide (1) and which fills up the entire closed space.
References Cited (Backward Citations)
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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) | 1994-01-21 | 1994-07-23 | 1995-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-21 | 1998-07-23 | 1999-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-21 | 2002-07-23 | 2003-01-22 | $7700.00 | Window Closed / Lapsed |