EP0355996A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Guidance and delivery system for high-energy pulsed laser light and endoscope
Assignee: Spectranetics LLC
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Filing: 1989-07-20
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Granted: —
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Expires: 2009-07-20
Abstract
Abstract A guidewire (1) for a catheter comprises a wire coil (2) having a distal end and a optical fiber (5) having a distal end and extending axially through the center of the wire coil. The distal end of the optical fiber is bonded to the distal end of the wire coil.
Inventors
- 👤 Tsvi Goldenberg
- 👤 Samuel M. Shaolian
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4296; A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61B17/00; A61B2017/00017; A61B2017/00137; A61B2017/00154; A61B17/22; A61B2017/22038; A61B90/00; A61B90/39; A61B2090/3933
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
48 words
A guidewire for a catheter, comprising; a wire coil having a distal end; and an optical fiber having a distal end and extending axially through the centre of the wire coil, the distal end of said optical fiber being bonded to the distal end of the wire coil.
Claim 2
Dependent Claim
48 words
A guidewire for a catheter, comprising; a wire coil having a distal end; and an optical fiber having a distal end and extending axially through the centre of the wire coil, the distal end of said optical fiber being bonded to the distal end of the wire coil.
Claim 3
Dependent Claim
24 words
A guidewire according to claim 1, wherein the outer diameter of the wire coil is less than or equal to 381 µm (0.015 inches).
Claim 4
Dependent Claim
24 words
A guidewire according to claim 1 or 2, wherein the outer diameter of the optical fiber is less than or equal to 200 microns.
Claim 5
Dependent Claim
16 words
A guidewire according to any preceding claim, further comprising a plastic coating over the wire coil.
Claim 6
Dependent Claim
22 words
A guidewire according to any preceding claim, wherein the outer diameter of the wire coil tapers inwardly at the distal end thereof.
Claim 7
Dependent Claim
61 words
A catheter system, comprising: a wire coil and an optical fiber extending axially through the centre of the wire coil; a sleeve having two parallel lumens extending therethrough; and an angioplasty instrument for lasing occlusions in a blood vessel extending through and bonded within one of the two lumens; the other of the two lumens adapted to receive the wire coil.
Claim 8
Dependent Claim
61 words
A catheter system, comprising: a wire coil and an optical fiber extending axially through the centre of the wire coil; a sleeve having two parallel lumens extending therethrough; and an angioplasty instrument for lasing occlusions in a blood vessel extending through and bonded within one of the two lumens; the other of the two lumens adapted to receive the wire coil.
Claim 9
Dependent Claim
16 words
A catheter system according to claim 6, further comprising a plastic coating over the wire coil.
Claim 10
Dependent Claim
24 words
A catheter system according to claim 6 or 7, wherein the outer diameter of the wire coil tapers inwardly at the distal end thereof.
Claim 11
Dependent Claim
28 words
A catheter system according to claim 6, 7 or 8, wherein the distal end of the optical fiber is bonded to the distal end of the wire coil.
Claim 12
Dependent Claim
32 words
A catheter system according to any of claims 6 to 9, wherein the angioplasty instrument includes means for conveying laser energy to an occlusion before the distal end of the angioplasty instrument.
Claim 13
Dependent Claim
30 words
A catheter system according to any of claims 6 to 10, wherein the angioplasty instrument further includes means for observing a region before the distal end of the angioplasty instrument.
Claim 14
Independent Claim
110 words
A system for the delivery of laser energy during angioplasty, comprising: an elongated catheter adapted to fit within a human blood vessel, said catheter being internally divided into a plurality of lumens; a guidewire slidably disposed in one of said lumens, said guidewire comprising a flexible sheath and an optical fiber disposed within said flexible sheath; said lumen in which said guidewire is disposed is located in the center of said catheter along its longitudinal axis; and two lumens located radially outwardly of said center lumen and symmetrically with respect thereto, each of said two lumens containing at least one fiber-optic waveguide in a symmetrical relationship relative to said guidewire.
Claim 15
Independent Claim
110 words
A system for the delivery of laser energy during angioplasty, comprising: an elongated catheter adapted to fit within a human blood vessel, said catheter being internally divided into a plurality of lumens; a guidewire slidably disposed in one of said lumens, said guidewire comprising a flexible sheath and an optical fiber disposed within said flexible sheath; said lumen in which said guidewire is disposed is located in the center of said catheter along its longitudinal axis; and two lumens located radially outwardly of said center lumen and symmetrically with respect thereto, each of said two lumens containing at least one fiber-optic waveguide in a symmetrical relationship relative to said guidewire.
Claim 16
Dependent Claim
18 words
A system according to claim 12, wherein the fiber optic waveguides are made of substantially pure synthetic silica.
Claim 17
Dependent Claim
20 words
A system according to claim 12 or 13, further comprising a third lumen located radially outwardly of the centre lumen.
Claim 18
Dependent Claim
40 words
A system according to claim 12, 13 or 14, wherein said lumens located radially outwardly of said center lumen include means for conveying a saline solution from the proximal end of the catheter to the distal end of the catheter.
References Cited (Backward Citations)
No citation records indexed.
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