US4830460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guidance system and method for delivery system for high-energy pulsed ultraviolet laser light
Assignee: Spectranetics LLC
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Filing: 1987-05-19
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Granted: 1989-05-16
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Expires: 2007-05-19
Abstract
Abstract A fiber-optic instrument, used for ablating lesions in blood vessels, is mounted to and guided by a sleeve having two lumens extending therethrough and parallel to each other. The instrument fits within one lumen and a guidewire, previously inserted in a blood vessel, extends through the other lumen. The sleeve and instrument are advanced along the guidewire within the blood vessel. An inflatable balloon may be provided at the distal end of a fiber optic instrument for retaining saline in order to displace opaque blood that would otherwise surround the distal end of the instrument.
Inventors
- 👤 Tsvi Goldenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4296; A; A61; A61B; A61B1/00; A61B1/00163; A61B1/00165; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61B17/00; A61B2017/00017; A61B2017/00137; A61B2017/00154; A61B2018/2244
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
81 words
An angioplasty system, comprising: an elongated sleeve adapted to fit within a human blood vessel; a guidewire; a first means lumen extending axially through said sleeve for guiding said sleeve along said guidewire; a fiber optic waveguide; and a second lumen extending axially through said sleeve for mounting said fiber optic waveguide to said sleeve; said first and second lumens being parallel and spaced from each other; said waveguide and sleeve being adapted to move longitudinally with respect to said guidewire.
Claim 2
Dependent Claim
81 words
An angioplasty system, comprising: an elongated sleeve adapted to fit within a human blood vessel; a guidewire; a first means lumen extending axially through said sleeve for guiding said sleeve along said guidewire; a fiber optic waveguide; and a second lumen extending axially through said sleeve for mounting said fiber optic waveguide to said sleeve; said first and second lumens being parallel and spaced from each other; said waveguide and sleeve being adapted to move longitudinally with respect to said guidewire.
Claim 3
Dependent Claim
16 words
The system according to claim 1, wherein said second lumen is eccentrically located within said sleeve,
Claim 4
Dependent Claim
24 words
The system according to claim 1, wherein said fiber optic waveguide includes an energy-conducting core made of substantially pure synthetic silica and an endoscope.
Claim 5
Independent Claim
94 words
A method of ablating a lesion within a human cavity, comprising: inserting a first end of a guidewire into said cavity until the guidewire is adjacent the lesion; mounting a fiber-based instrument through a first longitudinal passage in a follower; mounting the follower onto the guidewire by passing a second end of the guidewire through a second longitudinal passage in the follower, said second passage being parallel to and spaced from said first passage; advancing the follower and fiber-based instrument along the guidewire to the lesion; and ablating the lesion with the fiber-based instrument.
Claim 6
Independent Claim
94 words
A method of ablating a lesion within a human cavity, comprising: inserting a first end of a guidewire into said cavity until the guidewire is adjacent the lesion; mounting a fiber-based instrument through a first longitudinal passage in a follower; mounting the follower onto the guidewire by passing a second end of the guidewire through a second longitudinal passage in the follower, said second passage being parallel to and spaced from said first passage; advancing the follower and fiber-based instrument along the guidewire to the lesion; and ablating the lesion with the fiber-based instrument.
Claim 7
Dependent Claim
22 words
The method of claim 4, wherein the step of ablating the lesion includes transmitting laser energy through the instrument to the lesion.
Claim 8
Dependent Claim
16 words
The method of claim 4, further comprising the step of rotating the instrument within the cavity.
Claim 9
Dependent Claim
26 words
The method of claim 4, further comprising the step of withdrawing the instrument and follower after ablating the lesion while retaining the guidewire within the cavity.
Claim 10
Dependent Claim
20 words
The method of claim 7, further comprising the step of inspecting the ablation while the guidewire is within the cavity.
Claim 11
Dependent Claim
89 words
An angioscope, comprising: a fiber optic waveguide having a lens output at a distal end thereof; means for conducting a fluid along the length of the waveguide; means for supplying the fluid to the conducting means at a proximal end of the waveguide; and inflatable means for encasing the distal tips of said waveguide and the conducting means in a fluid-tight manner such that fluid supplied to the encasing means by the conducting means under pressure inflates the encasing means and is retained in longitudinal alignment with said waveguide.
Claim 12
Dependent Claim
89 words
An angioscope, comprising: a fiber optic waveguide having a lens output at a distal end thereof; means for conducting a fluid along the length of the waveguide; means for supplying the fluid to the conducting means at a proximal end of the waveguide; and inflatable means for encasing the distal tips of said waveguide and the conducting means in a fluid-tight manner such that fluid supplied to the encasing means by the conducting means under pressure inflates the encasing means and is retained in longitudinal alignment with said waveguide.
Claim 13
Dependent Claim
13 words
The angioscope according to claim 9, wherein the inflatable means is substantially transparent.
Claim 14
Dependent Claim
16 words
The angioscope according to claim 9, further comprising means for transmitting laser energy through the waveguide.
Claim 15
Dependent Claim
26 words
The angioscope according to claim 11, wherein the inflatable means is arranged such that the laser energy transmitted through the waveguide passes through the inflatable means.
Claim 16
Independent Claim
99 words
A system for guiding a fiber-based instrument through a lumen, comprising: a tubular follower having a first longitudinal passage extending therethrough; guidewire means extending through said first longitudinal passage and insertable into the lumen for defining a path through the lumen for the fiber-based instrument; said tubular follower adapted to move longitudinally with respect to said guidewire means through the lumen; and a second longitudinal passage extending through said tubular follower, said second longitudinal passage being parallel to and spaced from said first longitudinal passage; said fiber-based instrument being mounted in the second longitudinal passage of the tubular follower.
Claim 17
Independent Claim
99 words
A system for guiding a fiber-based instrument through a lumen, comprising: a tubular follower having a first longitudinal passage extending therethrough; guidewire means extending through said first longitudinal passage and insertable into the lumen for defining a path through the lumen for the fiber-based instrument; said tubular follower adapted to move longitudinally with respect to said guidewire means through the lumen; and a second longitudinal passage extending through said tubular follower, said second longitudinal passage being parallel to and spaced from said first longitudinal passage; said fiber-based instrument being mounted in the second longitudinal passage of the tubular follower.
Claim 18
Dependent Claim
15 words
The system according to claim 13, wherein said fiber-based instrument is a fiber optic waveguide.
Claim 19
Dependent Claim
13 words
The system according to claim 14, wherein said fiber-based instrument includes an endoscope.
Claim 20
Dependent Claim
20 words
The system according to claim 13, wherein said fiber-based instrument includes an energy-conducting core made of substantially pure synthetic silica.
Claim 21
Dependent Claim
19 words
The system according to claim 13, wherein said tubular follower is adapted to fit within a human blood vessel.
Claim 22
Dependent Claim
18 words
The system according to claim 13, wherein the second longitudinal passage is eccentrically located on the tubular follower.
Claim 23
Dependent Claim
133 words
An angioplasty system, comprising: a source of laser energy; a fiber optic waveguide receiving said laser energy at a proximal end thereof and delivering said energy to a predetermined site adjacent a distal end thereof, said waveguide having a first diameter throughout a substantial portion of its length; means at said distal end of said waveguide for expanding the diameter of a beam of laser energy emerging from said distal end to a second diameter larger than said first diameter; an elongated member adapted to fit within a human blood vessel; a guidewire; a first lumen extending axially through said member for guiding said member along said guidewire; and a second lumen extending axially through said member for supporting said fiber optic waveguide within said member adjacent said distal end of said waveguide.
Claim 24
Dependent Claim
133 words
An angioplasty system, comprising: a source of laser energy; a fiber optic waveguide receiving said laser energy at a proximal end thereof and delivering said energy to a predetermined site adjacent a distal end thereof, said waveguide having a first diameter throughout a substantial portion of its length; means at said distal end of said waveguide for expanding the diameter of a beam of laser energy emerging from said distal end to a second diameter larger than said first diameter; an elongated member adapted to fit within a human blood vessel; a guidewire; a first lumen extending axially through said member for guiding said member along said guidewire; and a second lumen extending axially through said member for supporting said fiber optic waveguide within said member adjacent said distal end of said waveguide.
Claim 25
Dependent Claim
14 words
The angioplasty system of claim 19 wherein said source generates pulses of laser energy.
Claim 26
Dependent Claim
21 words
The angioplasty system of claim 20 wherein each of said laser pulses has a duration in the range of 100-300 nsec.
Claim 27
Dependent Claim
21 words
The angioplasty system of claim 19 wherein said waveguide is comprised of synthetic silica that is substantially free of metallic impurities.
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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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |