Patent EP0416793A1 successfully refreshed from Google Patents.
EP0416793A1
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EP
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Catheter
Assignee: MGC Diagnostics Corp
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Filing: 1990-08-28
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Granted: —
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Expires: 2010-08-28
Abstract
Abstract Apparatus for use in the treatment of diseases of the human heart comprises: a. a medical laser; b. an optical fiber (52) operatively connected to the medical laser; c. advancing means (30, 42) for percutaneously advancing the optical fiber to a position adjacent a human heart; and d. means for locating and/or maintaining the optical fiber in said position adjacent a human heart.
Inventors
- 👤 Jeffrey M. Isner
- 👤 Richard Clarke
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B17/34; A61B2017/348; A61B2017/3482; A61B2017/3484; A61B2017/3488; A61B2018/00005; A61B2018/00011; A61B90/00; A61B90/39; A61M; A61M25/00; A61M2025/0098
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
64 words
An apparatus for treating diseases of the human heart, characterised in that it comprises: a. a medical laser; b. an optical fiber (52) operatively connected to the medical laser; c. advancing means (30, 42) for percutaneously advancing the optical fiber to a position adjacent a human heart; and d. means for locating and/or maintaining the optical fiber in said position adjacent a human heart.
Claim 2
Independent Claim
64 words
An apparatus for treating diseases of the human heart, characterised in that it comprises: a. a medical laser; b. an optical fiber (52) operatively connected to the medical laser; c. advancing means (30, 42) for percutaneously advancing the optical fiber to a position adjacent a human heart; and d. means for locating and/or maintaining the optical fiber in said position adjacent a human heart.
Claim 3
Dependent Claim
20 words
An apparatus according to Claim 1, wherein the advancing means and the maintaining means are disposed in a flexible sheath.
Claim 4
Dependent Claim
17 words
An apparatus according to Claim 1 or 2, wherein said advancing means comprises a catheter assembly 10.
Claim 5
Dependent Claim
21 words
An apparatus according to Claim 3, wherein said locating and/or maintaining means comprises a sigmoidal bend (14) in said catheter assembly.
Claim 6
Dependent Claim
29 words
An apparatus according to Claim 4, wherein said catheter assembly includes an outer sheath (18) defining a first lumen and shaped so as to provide said sigmoidal bend (14).
Claim 7
Dependent Claim
31 words
An apparatus according to Claim 5, wherein said catheter assembly includes an inner sheath or catheter (22) defining a second lumen, the inner catheter being removably located within said first lumen.
Claim 8
Dependent Claim
18 words
An apparatus according to Claim 6, wherein said optical fiber (52) is removably located within said second lumen.
Claim 9
Dependent Claim
20 words
An apparatus according to Claim 6 or 7, which includes a fixation wire (42) movably located within said second lumen.
Claim 10
Dependent Claim
41 words
An apparatus according to Claim 6, 7 or 8, wherein said inner sheath (22) has a proximal end responsively coupled to the distal end of a rigid Y-shaped housing (26) which comprises a main branch (28) and a secondary branch (32).
Claim 11
Dependent Claim
24 words
An apparatus according to Claim 9, wherein the proximal end of said main branch is responsively coupled to a piston and cylinder assembly (30).
Claim 12
Dependent Claim
21 words
An apparatus according to Claim 10, wherein the piston is responsively coupled to a proximal end of said fixation wire (42).
Claim 13
Dependent Claim
24 words
An apparatus according to Claim 8, wherein said secondary branch (32) defines a third lumen which removably contains a portion of the optical fiber.
Claim 14
Independent Claim
95 words
An apparatus comprising: a. a medical laser; b. an optical fiber (52) responsively coupled to the medical laser; c. a catheter assembly (10) having an outer sheath (18) defining a first lumen and an inner sheath (22) removably located within the first lumen and defining a second lumen, the optical fiber (52) being within the second lumen and engaged to the inner sheath for advancing the optical fiber to a position adjacent a human heart; and d. means coupled to the catheter assembly for maintaining the optical fiber in said position adjacent a human heart.
Claim 15
Independent Claim
95 words
An apparatus comprising: a. a medical laser; b. an optical fiber (52) responsively coupled to the medical laser; c. a catheter assembly (10) having an outer sheath (18) defining a first lumen and an inner sheath (22) removably located within the first lumen and defining a second lumen, the optical fiber (52) being within the second lumen and engaged to the inner sheath for advancing the optical fiber to a position adjacent a human heart; and d. means coupled to the catheter assembly for maintaining the optical fiber in said position adjacent a human heart.
Claim 16
Dependent Claim
162 words
A catheter assembly (10) for use in the apparatus of Claim 1 or 13, which comprises: a first, outer flexible sheath (18); a second, inner flexible sheath (22) removably disposed within the outer sheath and suitable to receive an optical fiber (52) and also an elongate locating and/or maintaining means (42) to locate and/or maintain a distal end of the optical fiber in or adjacent the heart; a branched tubular housing (26) having a first tubular member (28) the distal end of which can engage the proximal end of the outer sheath (18), and a second tubular member (32) extending from the first tubular member at a position intermediate the proximal and distal ends of the first tubular member whereby the interior of the first and second tubular members are in communication with each other, the first tubular member being suitable to receive therethrough the optical fiber (52) and the second tubular member being suitable to receive therethrough the elongate means (42).
Claim 17
Dependent Claim
31 words
A catheter assembly according to Claim 14, wherein the outer sheath has a pre-formed sigmoidal bend (14) to effect or facilitate location of the catheter assembly with respect to the heart.
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