US5151097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser light emitter
Assignee: SLT Japan Co Ltd
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Filing: 1990-08-28
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Granted: 1992-09-29
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Expires: 2010-08-28
Abstract
Abstract A laser light emitter is provided for use in a medical treatment, particularly excision of a prominence of an animal organism. The laser light emitter has an excision portion, wherein a part of said excision portion includes a laser light emitting portion which is capable of emitting laser light in the direction for excision of the prominence. The emitter also includes a light emission-intercepting member on the side opposite to the direction for excision of the prominence in order to prevent laser light emission. The laser light emitting portion is optically connected with a laser light generator. By using such a laser light emitter, safe excision of the prominence can be made without giving a shock to the human body or a burn, if laser light is emitted under the presence of a physiological salt solution. In addition, it is possible to remove the prominence while controlling bleeding by regulating the quantity of laser light emission and the ability of hemostasis by laser light.
Inventors
- 👤 Norio Daikuzono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:42
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
116 words
A laser light emitter for excision of protruding tissue of an animal organism, the emitter comprising: an optical transmission element having a holding portion through which light is transmitted into a bent portion that has an end surface and a side surface; and a light impervious material covering a first portion of said side surface of the bent portion of the optical transmission element, such that a second portion of said side surface of the bent portion of the optical transmission element is uncovered, whereby laser light applied to the optical transmission element will be emitted from the uncovered second portion of said side surface of the bent portion to impinge on and excise protruding tissue.
Claim 2
Dependent Claim
116 words
A laser light emitter for excision of protruding tissue of an animal organism, the emitter comprising: an optical transmission element having a holding portion through which light is transmitted into a bent portion that has an end surface and a side surface; and a light impervious material covering a first portion of said side surface of the bent portion of the optical transmission element, such that a second portion of said side surface of the bent portion of the optical transmission element is uncovered, whereby laser light applied to the optical transmission element will be emitted from the uncovered second portion of said side surface of the bent portion to impinge on and excise protruding tissue.
Claim 3
Dependent Claim
24 words
A laser light emitter according to claim 1, wherein the optical transmission element includes at least one straight portion connected to the bent portion.
Claim 4
Dependent Claim
57 words
A laser light emitter according to claim 2, wherein the bent portion is bent at an angle with respect to the at least one straight portion, and the uncovered second portion of said side surface of the bent portion emits laser light to perform the excision in a direction parallel to the at least one straight portion.
Claim 5
Dependent Claim
30 words
A laser light emitter according to claim 3, wherein an angle formed by the bent portion with respect to the at least one straight portion is between 45° and 120°.
Claim 6
Dependent Claim
36 words
A laser light emitter according to claim 1, wherein the bent portion is U-shaped, and the uncovered second portion of said side surface of the bent portion is located on one lateral side of the U-shape.
Claim 7
Dependent Claim
53 words
A laser light emitter according to claim 1, wherein the bent portion forms a curve and the uncovered second portion of said side surface of the bent portion is located along an inside part of the curve on the same side as the at least one straight portion of the optical transmission element.
Claim 8
Dependent Claim
39 words
A laser light emitter according to claim 1, wherein the bent portion tapers toward a distal end to the end surface thereat to form a narrow section such that the narrow section concentrates light emitted through the end surface.
Claim 9
Dependent Claim
17 words
A laser light emitter according to claim 1, wherein the optical transmission element comprises an optical fiber.
Claim 10
Dependent Claim
17 words
A laser light emitter according to claim 1, wherein the optical transmission element comprises a light-transmission ceramic.
Claim 11
Dependent Claim
36 words
A laser light emitter according to claim 1, wherein the optical transmission element comprises an optical fiber, and the light impervious material covering the optical transmission element comprises a cladding formed on the optical transmission element.
Claim 12
Dependent Claim
48 words
A laser light emitter according to claim 1, further comprising a reflective member located at the end surface at an end of the bent portion of the optical transmission element, for reflecting any light reaching the reflecting member through the bent portion back through the optical transmission element.
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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) | 1995-09-29 | 1996-03-30 | 1996-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-29 | 2000-03-30 | 2000-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-29 | 2004-03-30 | 2004-09-29 | $7700.00 | Window Closed / Lapsed |