Patent EP0299448A2 successfully refreshed from Google Patents.
EP0299448A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fibre optic device for the transmission and lateral irradiation of laser energy, particularly for angioplasty
Assignee: Consiglio Nazionale delle Richerche
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Filing: 1988-07-13
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Granted: —
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Expires: 2008-07-13
Abstract
Abstract A fibre optic device for the transmission and lateral irradiation of laser energy, particularly for angioplasty, comprising at least one optical fibre (1), to the inlet end of which there is coupled a laser source and to the outlet end of which, after removing its coating (3), there is applied a microcapsule (5) which is transparent to laser radiation and has a substantially toroidal thickened portion (6) surrounding said end and arranged to give raise to a "corolla-shaped" output laser beam.
Inventors
- 👤 Stefano Sottini
- 👤 Vera Russo
- 👤 Filippo Crea
- 👤 Giancarlo Margheri
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 21:48
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/3616; G02B6/3624; A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; H; H01; H01S; H01S3/00; H01S3/005; A61B2018/2255; A61B2018/2266; A61B2018/2272; G02B6/241
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
84 words
A fibre optic device for the transmission and lateral irradiation of laser energy, particularly for angioplasty, characterised by comprising at least one optical fibre (1), to the inlet end of which there is coupled a laser source (4) and to the outlet end of which, after removing its coating (3), there is applied a microcapsule (5) which is transparent to laser radiation and has a substantially toroidal thickened portion (6) surrounding said end and arranged to give rise to a "corolla-shaped" output laser beam.
Claim 2
Dependent Claim
84 words
A fibre optic device for the transmission and lateral irradiation of laser energy, particularly for angioplasty, characterised by comprising at least one optical fibre (1), to the inlet end of which there is coupled a laser source (4) and to the outlet end of which, after removing its coating (3), there is applied a microcapsule (5) which is transparent to laser radiation and has a substantially toroidal thickened portion (6) surrounding said end and arranged to give rise to a "corolla-shaped" output laser beam.
Claim 3
Dependent Claim
18 words
A device as claimed in claim 1, characterised in that the optical fibre (1) is of single type.
Claim 4
Independent Claim
17 words
A device as claimed in claim1, characterised in that the optical fibre (1) is of multiple type.
Claim 5
Dependent Claim
25 words
A device as claimed in claim 1, characterised in that the outlet end of the optical fibre (1), is cut orthogonal to the fibre axis.
Claim 6
Dependent Claim
22 words
A device as claimed in claim 1, characterised in that the outlet end of the optical fibre (1) is of conical shape.
Claim 7
Dependent Claim
31 words
A device as claimed in claim 3, characterised in that the efficiency of the coupling between the laser source (4) and each element of the multiple optical fibre (1) is adjustable.
Claim 8
Dependent Claim
23 words
A device as claimed in claim 1, characterised in that the microcapsule (5) consists of a portion of capillary sealed at one end.
Claim 9
Dependent Claim
37 words
A device as claimed in claim 1, characterised in that a collar of sealing material (7) is interposed between the outer lateral surface of the optical fibre (1) and the inner lateral surface of the microcapsule (5).
Claim 10
Independent Claim
17 words
A device as claimed 1, characterised in that the interior of the microcapsule (5) is under vacuum.
Claim 11
Dependent Claim
25 words
A device as claimed in claim 1, characterised by comprising an aperture for communication between the interior cavity of the microcapsule (5) and the outside.
Claim 12
Dependent Claim
25 words
A device as claimed in claim 10, characterised by comprising a capillary (8) which connects the interior cavity of the microcapsule (5) to the outside.
Claim 13
Dependent Claim
25 words
A device as claimed in claim 11, characterised in that the optical fibre (1) and the capillary (8) are contained in a single sheath (9).
Claim 14
Dependent Claim
25 words
A device as claimed in claim 11, characterised in that that end of the fibre (1) within the microcapsule (5) is adjustable axially and/or transversely.
References Cited (Backward Citations)
No citation records indexed.
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