US4690141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fresnel lens light applicator
Assignee: PHYSIO TECHNOLOGY Inc A CORP OF
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Filing: 1985-09-16
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Granted: 1987-09-01
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Expires: 2005-09-16
Abstract
Abstract A therapeutic laser radiation applicator including a laser energy radiator, a fresnel lens, and structure for mounting the fresnel lens in preselected association with the laser radiator for refracting a portion of the laser radiation to a preselected beam configuration adapted to provide a therapeutic tissue irradiation pattern. The support is preferably flexible to accommodate the applicator to the surface configuration of the tissue to be treated. The fresnel lens elements are preferably formed of a flexible material and, in the illustrated embodiment are formed integrally in a sheet of light-transmissive synthetic resin. The fresnel lens structure may comprise one or more fresnel lens elements in series light-diffracting relationship.
Inventors
- 👤 John C. Castel
- 👤 Richard G. Kerwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:52
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/06; A61N5/0613; A61N5/0616; A61N2005/0635; A61N2005/0643; A61N2005/0645; A61N5/067
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
76 words
A therapeutic laser radiation applicator comprising: means for providing laser radiation in an elliptical transverse distribution; and means for converting the elliptical transverse distribution of the laser radiation into a circular distribution thereof comprising at least two axially spaced fresnel lenses, and means for mounting the fresnel lenses in preselected association with said laser radiation means for refracting a portion of a laser radiation to said circular distribution adapted to provide a therapeutic tissue irradiation pattern.
Claim 2
Dependent Claim
76 words
A therapeutic laser radiation applicator comprising: means for providing laser radiation in an elliptical transverse distribution; and means for converting the elliptical transverse distribution of the laser radiation into a circular distribution thereof comprising at least two axially spaced fresnel lenses, and means for mounting the fresnel lenses in preselected association with said laser radiation means for refracting a portion of a laser radiation to said circular distribution adapted to provide a therapeutic tissue irradiation pattern.
Claim 3
Dependent Claim
32 words
The therapeutic laser radiation applicator of claim 1 wherein at least three axially spaced fresnel lenses are mounted in series for refracting the refracted laser radiation in forming the desired beam configuration.
Claim 4
Dependent Claim
17 words
The therapeutic laser radiation applicator of claim 1 wherein the fresnel lenses are disposed in back-to-back relationship.
Claim 5
Dependent Claim
21 words
The therapeutic laser radiation applicator of claim 1 wherein said fresnel lenses and said means for mounting the lens are flexible.
Claim 6
Dependent Claim
97 words
A therapeutic laser radiation applicator comprising: a support provided with a through opening; means for providing laser radiation; means for mounting said laser radiating means at one end of said through opening to direct laser radiation therethrough; and means for converting the elliptical transverse distribution of the laser radiation into a circular distribution thereof comprising at least two axially spaced fresnel lenses, and means for mounting the fresnel lenses in preselected association with said laser radiation means for refracting a portion of the laser radiation to said circular distribution adapted to provide a therapeutic tissue irradiation pattern.
Claim 7
Dependent Claim
97 words
A therapeutic laser radiation applicator comprising: a support provided with a through opening; means for providing laser radiation; means for mounting said laser radiating means at one end of said through opening to direct laser radiation therethrough; and means for converting the elliptical transverse distribution of the laser radiation into a circular distribution thereof comprising at least two axially spaced fresnel lenses, and means for mounting the fresnel lenses in preselected association with said laser radiation means for refracting a portion of the laser radiation to said circular distribution adapted to provide a therapeutic tissue irradiation pattern.
Claim 8
Dependent Claim
13 words
The therapeutic radiation laser applicator of claim 5 wherein said support is flexible.
Claim 9
Dependent Claim
19 words
The therapeutic radiation laser applicator of claim 5 wherein said fresnel lens comprises an embossed body of synthetic resin.
Claim 10
Dependent Claim
20 words
The therapeutic radiation laser applicator of claim 5 wherein said fresnel lens comprise an embossed flexible sheet of synthetic resin.
Claim 11
Dependent Claim
23 words
The therapeutic radiation laser applicator of claim 5 wherein said means for mounting the laser radiation means comprises a body of synthetic resin.
Claim 12
Dependent Claim
24 words
The therapeutic radiation laser applicator of claim 5 wherein said means for mounting the laser radiation means comprises a flexible body of synthetic resin.
Claim 13
Dependent Claim
84 words
A therapeutic laser radiation applicator comprising: a support provided with a through opening; means for providing laser radiation; means for mounting said laser radiation means at one end of said through opening to direct laser radiation therethrough; a fresnel lens; and means for mounting the fresnel lens at the other end of said through opening for refracting a portion of the laser radiation to a modified preselected beam characteristic adapted to provide a therapeutic tissue irradiation pattern, said support being formed of foam material.
Claim 14
Dependent Claim
84 words
A therapeutic laser radiation applicator comprising: a support provided with a through opening; means for providing laser radiation; means for mounting said laser radiation means at one end of said through opening to direct laser radiation therethrough; a fresnel lens; and means for mounting the fresnel lens at the other end of said through opening for refracting a portion of the laser radiation to a modified preselected beam characteristic adapted to provide a therapeutic tissue irradiation pattern, said support being formed of foam material.
Claim 15
Dependent Claim
92 words
A therapeutic laser radiation applicator comprising: a support provided with a through opening; means for providing laser radiation; means for mounting said laser radiation means at one end of said through opening to direct laser radiation therethrough; a fresnel lens; and means for mounting the fresnel lens at the other end of said through opening for refracting a portion of the laser radiation to a modified preselected beam characteristic adapted to provide a therapeutic tissue irradiation pattern, said fresnel lens comprising an embossed body of synthetic resin adhesively secured to said support.
Claim 16
Dependent Claim
92 words
A therapeutic laser radiation applicator comprising: a support provided with a through opening; means for providing laser radiation; means for mounting said laser radiation means at one end of said through opening to direct laser radiation therethrough; a fresnel lens; and means for mounting the fresnel lens at the other end of said through opening for refracting a portion of the laser radiation to a modified preselected beam characteristic adapted to provide a therapeutic tissue irradiation pattern, said fresnel lens comprising an embossed body of synthetic resin adhesively secured to said support.
Claim 17
Dependent Claim
87 words
A therapeutic laser radiation applicator comprising: a support provided with a plurality of distributed through openings; a corresponding plurality of means for producing laser radiation; means for mounting said laser radiation means one each at one end of the respective through openings; a corresponding plurality of fresnel lenses; and means for mounting the fresnel lenses one each at the other end of the respective through openings for refracting a portion of the laser radiation to a plurality of preselected beams adapted to provide concurrent therapeutic tissue irradiation.
Claim 18
Dependent Claim
87 words
A therapeutic laser radiation applicator comprising: a support provided with a plurality of distributed through openings; a corresponding plurality of means for producing laser radiation; means for mounting said laser radiation means one each at one end of the respective through openings; a corresponding plurality of fresnel lenses; and means for mounting the fresnel lenses one each at the other end of the respective through openings for refracting a portion of the laser radiation to a plurality of preselected beams adapted to provide concurrent therapeutic tissue irradiation.
Claim 19
Dependent Claim
39 words
The therapeutic laser radiation applicator of claim 13 wherein at least one additional fresnel lens is mounted in series with each of said first named fresnel lenses for further refracting the refracted laser radiation in forming the desired beams.
Claim 20
Dependent Claim
15 words
The therapeutic laser radiation applicator of claim 13 where said fresnel lenses are juxtaposed laterally.
Claim 21
Dependent Claim
21 words
The therapeutic laser radiation applicator of claim 13 wherein said fresnel lenses are generally flat and are arranged in flatwise juxtaposition.
Claim 22
Dependent Claim
17 words
The therapeutic laser radiation applicator of claim 13 wherein the axes of said lenses are generally parallel.
Claim 23
Dependent Claim
16 words
The therapeutic laser radiation applicator of claim 13 wherein said laser radiation means comprises diode means.
Claim 24
Dependent Claim
17 words
The therapeutic laser radiation applicator of claim 13 wherein said laser radiation means comprises radiation conducting means.
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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) | 1990-08-31 | 1991-03-02 | 1991-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-31 | 1995-03-02 | 1995-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-31 | 1999-03-02 | 1999-09-01 | $7700.00 | Window Closed / Lapsed |