US5451221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscopic light delivery system
Assignee: Cynosure LLC
•
Filing: 1993-12-27
•
Granted: 1995-09-19
•
Expires: 2013-12-27
Abstract
Abstract An endoscopic light delivery system for delivering light to tissue includes a laser source for generating light. Fiber optics are optically coupled to the laser source for conveying the light generated by the laser source. A focusing surface is formed at an end of the fiber optics. The focusing surface of the fiber optics is shaped for redirecting light conveyed by the fiber optics in a direction lateral to the fiber optics for cutting tissue. A single optical fiber or a bundle of optical fiber can be used to transmit plural wavelengths of light for aiming cutting and coagulating.
Inventors
- 👤 George Cho
- 👤 Horace W. Furumoto
- 👤 James Boll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:33
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B2018/2255; A61B2018/2272
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
93 words
An endoscopic light delivery system comprising: a laser source for generating light; fiber optics having a longitudinal axis optically coupled to the laser source for conveying light generated by the laser; and a tip member optically coupled to the fiber optics extending generally axially from the fiber optics, the tip member fanning out from the axis of the fiber optics and being shaped in an arch along a plane perpendicular to the axis of the fiber optics to direct the conveyed light into an arch-shaped profile extending generally axially from the fiber optics.
Claim 2
Dependent Claim
93 words
An endoscopic light delivery system comprising: a laser source for generating light; fiber optics having a longitudinal axis optically coupled to the laser source for conveying light generated by the laser; and a tip member optically coupled to the fiber optics extending generally axially from the fiber optics, the tip member fanning out from the axis of the fiber optics and being shaped in an arch along a plane perpendicular to the axis of the fiber optics to direct the conveyed light into an arch-shaped profile extending generally axially from the fiber optics.
Claim 3
Dependent Claim
26 words
The endoscopic light delivery system of claim 1 in which the tip member is semicircular in shape to direct the conveyed light into a semicircular profile.
Claim 4
Dependent Claim
17 words
The endoscopic delivery system of claim 1 further comprising more than one optical fiber for conveying light.
Claim 5
Dependent Claim
17 words
The endoscopic delivery system of claim 3 further comprising more than one laser source for generating light.
Claim 6
Dependent Claim
38 words
The endoscopic delivery system of claim 1 further comprising: a first laser source for generating light of a first wavelength for cutting tissue; and a second laser source for generating light of a second wavelength for coagulating tissue.
Claim 7
Dependent Claim
30 words
The laser light delivery system of claim 5 further comprising a third laser source optically coupled to the fiber optics for generating light of a third wavelength for targeting tissue.
Claim 8
Dependent Claim
43 words
The laser light delivery system of claim 5 in which the first laser source generates light having a wavelength ranging from about 1.4 to 2.1 microns and the second laser source generates light having a wavelength ranging from about 0.8 to 1.1 microns.
Claim 9
Independent Claim
112 words
A method of delivering light with an endoscope comprising the steps of: generating light with a laser source; conveying light generated by the laser with fiber optics optically coupled to the laser source, the fiber optics having a longitudinal axis; and directing the light conveyed by the fiber optics with a tip member optically coupled to the fiber optics which extends generally axially from the fiber optics, the tip member fanning out from the axis of the fiber optics and being shaped in an arch along a plane perpendicular to the axis of the fiber optics to direct the conveyed light into an arch-shaped profile extending generally axially from the fiber optics.
Claim 10
Independent Claim
112 words
A method of delivering light with an endoscope comprising the steps of: generating light with a laser source; conveying light generated by the laser with fiber optics optically coupled to the laser source, the fiber optics having a longitudinal axis; and directing the light conveyed by the fiber optics with a tip member optically coupled to the fiber optics which extends generally axially from the fiber optics, the tip member fanning out from the axis of the fiber optics and being shaped in an arch along a plane perpendicular to the axis of the fiber optics to direct the conveyed light into an arch-shaped profile extending generally axially from the fiber optics.
Claim 11
Dependent Claim
15 words
The method of claim 8 in which the light is directed into a semicircular profile.
Claim 12
Dependent Claim
19 words
The method of claim 8 further comprising the step of conveying the light with more than one optical fiber.
Claim 13
Dependent Claim
17 words
The method of claim 10 in which laser light is generated by more than one laser source.
Claim 14
Dependent Claim
39 words
The method of claim 8 further comprising the steps of: generating light of a first wavelength with a first laser source for cutting tissue; and generating light of a second wavelength with a second laser source for coagulating tissue.
Claim 15
Dependent Claim
34 words
The method of claim 12 further comprising the step of generating light of a third wavelength with a third laser source for targeting tissue, the third laser being optically coupled to the fiber optics.
Claim 16
Dependent Claim
45 words
The method of claim 8 further comprising the steps of: generating light having a wavelength ranging from about 1.4 to 2.1 microns with a first laser source; and generating light having a wavelength ranging from about 0.8 to 1.1 microns with a second laser source.
Claim 17
Dependent Claim
19 words
The method of claim 8 in which the light is conveyed by fiber optics made of pure silica material.
References Cited (Backward Citations)
DE2826383A1
Cited
US4773413A
Cited
US4592353A
Cited
US4592353B1
Cited
US4913142A
Cited
US4740047A
Cited
US4887600A
Cited
US4860743A
Cited
US5061266A
Cited
US4955882A
Cited
US5201731A
Cited
US5242437A
Cited
US5304167A
Cited
WO1990006727A1
Cited
US5066292A
Cited
US5207672A
Cited
US5011483A
Cited
US5151097A
Cited
US5147353A
Cited
US5163935A
Cited
US5242438A
Cited
US5292320A
Cited
US5267995A
Cited
US5366456A
Cited
US5354294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-09-18 | 1999-03-20 | 1999-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-18 | 2003-03-20 | 2003-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-18 | 2007-03-20 | 2007-09-19 | $7700.00 | Window Closed / Lapsed |