US5486170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical catheter using optical fibers that transmit both laser energy and ultrasonic imaging signals
Assignee: Spectranetics LLC
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Filing: 1994-09-22
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Granted: 1996-01-23
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Expires: 2014-09-22
Abstract
Abstract A medical catheter which includes one or more optical fibers, each of which transmits both ultrasonic signals for imaging of the treatment area and laser energy for treatment of a medical condition. Different embodiments of the invention make use of different ways to utilize the same fiber for both ultrasonic and laser transmission.
Inventors
- 👤 Thomas R. Winston
- 👤 John M. Neet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:20
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61B17/00; A61B17/22; A61B17/22004; A61B17/22012; A61B2017/22014; A61B2017/22015; A61B2017/22017; A61B90/00; A61B90/36; A61B90/37; A61B2090/378
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
141 words
A catheter for insertion into the body to effect medical treatment, comprising: an elongated catheter having opposite ends; an optical fiber extending through said catheter and terminating in a tip adapted to be disposed in the body with the catheter, said optical fiber having an input end opposite said tip; an ultrasonic transducer means for generating and receiving ultrasonic signals; a means for generating laser energy; and a directing means for directing both ultrasonic signals and laser energy to the optical fiber at the input end for transmission through the fiber to said tip and for directing reflected ultrasonic signals from said tip through said optical fiber to said ultrasonic transducer means, the reflected ultrasonic signals providing information regarding the treatment area adjacent the tip of the optical fiber, the laser energy being applied to effect treatment to the same area.
Claim 2
Dependent Claim
141 words
A catheter for insertion into the body to effect medical treatment, comprising: an elongated catheter having opposite ends; an optical fiber extending through said catheter and terminating in a tip adapted to be disposed in the body with the catheter, said optical fiber having an input end opposite said tip; an ultrasonic transducer means for generating and receiving ultrasonic signals; a means for generating laser energy; and a directing means for directing both ultrasonic signals and laser energy to the optical fiber at the input end for transmission through the fiber to said tip and for directing reflected ultrasonic signals from said tip through said optical fiber to said ultrasonic transducer means, the reflected ultrasonic signals providing information regarding the treatment area adjacent the tip of the optical fiber, the laser energy being applied to effect treatment to the same area.
Claim 3
Dependent Claim
59 words
The catheter of claim 1, wherein the directing means includes first and second fiber branches merging at said input end of the optical fiber, said transducer means applying said ultrasonic signals to said first fiber branch and receiving the reflected signals from said first branch, said means for applying laser energy applying laser energy so said second fiber branch.
Claim 4
Dependent Claim
39 words
The catheter of claim 1, wherein: said directing means includes a filament which extends through said transducer means and connects with said optical fiber, said means for generating laser energy being operable to apply laser energy to said filament.
Claim 5
Dependent Claim
63 words
The catheter of claim 1, the directing means including: one filament to which said ultrasonic transducer means is connected to apply said ultrasonic signals thereto and receive the reflected signals therefrom; a plurality of additional filaments which receive laser energy from said means for generating laser energy; and a coupling means for coupling said one filament and said additional filaments to said fiber.
Claim 6
Dependent Claim
25 words
The catheter of claim 4, wherein said coupling means is arranged to situate said additional filaments in a generally circular pattern around said one filament.
Claim 7
Dependent Claim
154 words
A catheter for insertion into the body to effect medical treatment, comprising: an elongated catheter having opposite ends; an optical fiber extending through said catheter and terminating in a tip adapted to be disposed in the body with the catheter, said optical fiber including an optically coated surface and having an input end opposite said tip; an ultrasonic transducer means connected to the fiber for applying ultrasonic signals to said input end of the fiber for transmission to said tip and for receiving reflected ultrasonic signals received by said tip and transmitted along said fiber to said input end, thereby providing information regarding the treatment area adjacent the fiber tip; and a means for applying laser energy to the fiber to effect treatment of the area adjacent the fiber tip, said optically coated surface presenting an uncoated area through which laser energy is applied to said fiber by said means for applying laser energy.
Claim 8
Dependent Claim
154 words
A catheter for insertion into the body to effect medical treatment, comprising: an elongated catheter having opposite ends; an optical fiber extending through said catheter and terminating in a tip adapted to be disposed in the body with the catheter, said optical fiber including an optically coated surface and having an input end opposite said tip; an ultrasonic transducer means connected to the fiber for applying ultrasonic signals to said input end of the fiber for transmission to said tip and for receiving reflected ultrasonic signals received by said tip and transmitted along said fiber to said input end, thereby providing information regarding the treatment area adjacent the fiber tip; and a means for applying laser energy to the fiber to effect treatment of the area adjacent the fiber tip, said optically coated surface presenting an uncoated area through which laser energy is applied to said fiber by said means for applying laser energy.
Claim 9
Dependent Claim
165 words
A catheter for insertion into the body to effect medical treatment, comprising: an elongated catheter having opposite ends; a plurality of optical fibers extending through said catheter, each fiber having an input end and an opposite end providing a tip adapted to be disposed in the body with the catheter, each fiber having an optically coated surface; an ultrasonic transducer means coupled with each fiber for applying ultrasonic signals to the input end of the corresponding fiber for transmission to said tip and receiving reflected ultrasonic signals received by the tip of the corresponding fiber and transmitted to said input end, thereby providing information regarding the treatment area adjacent said tips of the fibers; and a means for applying laser energy to all the fibers to effect each treatment of the area adjacent said tips, said optically coated surface of each fiber presenting an uncoated area on each fiber through which laser energy is applied to said fibers by said means for applying laser energy.
Claim 10
Dependent Claim
165 words
A catheter for insertion into the body to effect medical treatment, comprising: an elongated catheter having opposite ends; a plurality of optical fibers extending through said catheter, each fiber having an input end and an opposite end providing a tip adapted to be disposed in the body with the catheter, each fiber having an optically coated surface; an ultrasonic transducer means coupled with each fiber for applying ultrasonic signals to the input end of the corresponding fiber for transmission to said tip and receiving reflected ultrasonic signals received by the tip of the corresponding fiber and transmitted to said input end, thereby providing information regarding the treatment area adjacent said tips of the fibers; and a means for applying laser energy to all the fibers to effect each treatment of the area adjacent said tips, said optically coated surface of each fiber presenting an uncoated area on each fiber through which laser energy is applied to said fibers by said means for applying laser energy.
References Cited (Backward Citations)
US3264863A
Cited
US3470868A
Cited
SU376712A1
Cited
US3779234A
Cited
US3938502A
Cited
US3915018A
Cited
US4008455A
Cited
US4232385A
Cited
US4208917A
Cited
US4284473A
Cited
US4349032A
Cited
US4337661A
Cited
US4466443A
Cited
US4462408A
Cited
US4576177A
Cited
US4605009A
Cited
US4764334A
Cited
US4686979A
Cited
US4587972A
Cited
WO1987001269A1
Cited
JPS62127665A
Cited
JPS62270140A
Cited
US4794931A
Cited
US4757818A
Cited
US4869258A
Cited
US4957112A
Cited
US4950267A
Cited
EP0325836A2
Cited
US4887605A
Cited
EP0329492A2
Cited
US4951677A
Cited
US4930515A
Cited
US5195519A
Cited
US4972839A
Cited
US5022399A
Cited
US5284148A
Cited
US5217018A
Cited
US5029588A
Cited
US5010886A
Cited
US5170793A
Cited
US5163432A
Cited
US5024092A
Cited
US5152291A
Cited
US5254112A
Cited
US5054492A
Cited
US5257628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-01-22 | 1999-07-24 | 2000-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-22 | 2003-07-24 | 2004-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-22 | 2007-07-24 | 2008-01-23 | $7700.00 | Window Closed / Lapsed |