Patent US5188634A successfully refreshed from Google Patents.
US5188634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable laser probe with beveled tip
Assignee: Trimedyne Inc
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Filing: 1990-07-13
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Granted: 1993-02-23
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Expires: 2010-07-13
Abstract
Abstract A catheter for ablating obstructing material within a corporal lumen includes a fiber optic member through which radiant energy can be transmitted to a distal end adjacent the site of the obstructing material. Beveled surfaces carried on the distal end of the fiber optic member provide output beams of radiant energy oriented in a direction on the order of 45° with respect to an axis of the member. The laterally deflected radiant energy beams impinge upon regions of plaque or obstructing material in the lumen and have an effective radius greater than the radius of the fiber optic member. By rotating the fiber optic member, a circular locus within the lumen can be ablated or vaporized to create a channel in the lumen with a diameter greater than the diameter of the fiber optic member.
Inventors
- 👤 Hany M. G. Hussein
- 👤 Marvin Loeb
- 👤 Kenneth M. Galt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:44
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61B17/00; A61B17/22; A61B2017/22051; A61B18/1815; A61B2018/1861; A61B2018/2255; A61B2018/2272; A61B2018/2277
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
187 words
An apparatus for delivering radiant energy at a predetermined power density to a displaced region comprising: at least one elongated, optical conductor of radiant energy of a selected radius having a proximal end and a distal end with a cross section of a predetermined area wherein radiant energy injected into said proximal end exits at said distal end; an elongated housing having a central axis and with said conductor carried thereby for rotation relative to said housing about said axis; and a first beveled deflecting surface integrally formed on said distal end, adapted to deflect and cause said radiant energy to exit said surface laterally with respect to said axis; and a second beveled deflecting surface integrally formed on said distal end but displaced from said surface, adapted to deflect and cause said radiant energy to exit said second surface laterally with respect to said axis; whereby rotation of said optical conductor about said axis forms a first locus of incidence on the region with a radius greater than said selected radius and a second locus of incidence on the region displaced laterally from said first locus.
Claim 2
Independent Claim
187 words
An apparatus for delivering radiant energy at a predetermined power density to a displaced region comprising: at least one elongated, optical conductor of radiant energy of a selected radius having a proximal end and a distal end with a cross section of a predetermined area wherein radiant energy injected into said proximal end exits at said distal end; an elongated housing having a central axis and with said conductor carried thereby for rotation relative to said housing about said axis; and a first beveled deflecting surface integrally formed on said distal end, adapted to deflect and cause said radiant energy to exit said surface laterally with respect to said axis; and a second beveled deflecting surface integrally formed on said distal end but displaced from said surface, adapted to deflect and cause said radiant energy to exit said second surface laterally with respect to said axis; whereby rotation of said optical conductor about said axis forms a first locus of incidence on the region with a radius greater than said selected radius and a second locus of incidence on the region displaced laterally from said first locus.
Claim 3
Dependent Claim
19 words
An apparatus as in claim 1 with said first surface being planar and integrally formed in said distal end.
Claim 4
Dependent Claim
24 words
An apparatus as in claim 1 with said first surface and said second surface oriented at a selected angle with respect to said axis.
Claim 5
Dependent Claim
27 words
An apparatus as in claim 1 with said first and second surfaces oriented so as to direct energy onto first and second regions, displaced from said axis.
Claim 6
Dependent Claim
14 words
An apparatus as in claim 1 including a guide wire carried within said housing.
Claim 7
Dependent Claim
15 words
An apparatus as in claim 5 with said guide wire centrally located in said housing.
Claim 8
Dependent Claim
82 words
A guidable endoscope for ablating obstructing material in a corporal lumen comprising: a flexible, elongated housing; a guide wire longitudinally slidably received by said housing and coextensive therewith; a radiant energy transmitting member carried within said guide wire by said housing, said transmitting member having a proximal end and a distal end with said distal end carrying a beveled transmissive end region; and a member carried by said housing adjacent said proximal end for rotating said transmitting member about a selected axis.
Claim 9
Dependent Claim
82 words
A guidable endoscope for ablating obstructing material in a corporal lumen comprising: a flexible, elongated housing; a guide wire longitudinally slidably received by said housing and coextensive therewith; a radiant energy transmitting member carried within said guide wire by said housing, said transmitting member having a proximal end and a distal end with said distal end carrying a beveled transmissive end region; and a member carried by said housing adjacent said proximal end for rotating said transmitting member about a selected axis.
Claim 10
Dependent Claim
19 words
A guidable endoscope as in claim 7 including an inflatable balloon carried on said housing adjacent said distal end.
Claim 11
Dependent Claim
22 words
A guidable endoscope as in claim 4 with said transmitting member displaced laterally with respect to said guide wire and rotatable thereabout.
Claim 12
Dependent Claim
20 words
A guidable endoscope as in claim 7 including means for coupling said proximal end to a source of radiant energy.
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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) | 1996-02-23 | 1996-08-24 | 1997-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-23 | 2000-08-24 | 2001-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-23 | 2004-08-24 | 2005-02-23 | $7700.00 | Window Closed / Lapsed |