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EP0343094B1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Angioscope catheter apparatus with a deflector

Assignee: Individual
•
Filing: 1989-01-16
•
Granted: 1994-09-21
•
Expires: 2009-01-16
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Abstract

Abstract An angioscope centering catheter (10) includes an angioscope (18) mounted within an inner catheter (12) for visualization of a vessel at the distal end of the catheter. The inner catheter (12) is mounted within an outer sheath (14) for sliding longitudinal movement with respect to the outer sheath (14). The outer sheath (14) includes a set of longitudinal slit sections (16) formed circumferentially near its distal end. The outer sheath (14) and the inner catheter (12) are connected at their distal ends such that when the catheter moves proximally with respect to the outer sheath, the slitted sections splay out from the axis of the catheter to center the viewing end of the angioscope.

Inventors

  • 👤 Albert K. Chin

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 13:17
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6846; A61B5/6886; A61B1/00; A61B1/00064; A61B1/00071; A61B1/0008; A61B1/00085; A61B1/00131; A61B1/00135; A61B1/12; A61B1/313; A61B1/3135; A61M; A61M25/00; A61M25/01; A61M25/02; A61M25/04

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 188 words
An angioscope catheter apparatus (10) of the type including an angioscope (18) for visualizing the interior of a vessel such as an artery, an outer sheath (14) and an irrigating catheter (12) having a distal end that includes means for introducing flush solution to the interior of the vessel at the distal end of the angioscope (18) characterized in comprising a deflector shield (30) mounted at the distal end of the angioscope (18) such that flush solution introduced by the irrigating catheter imparts on the deflector shield (30), the deflector shield (30) being mounted such that there is a continuous gap between the distal end of the outer sheath (14) and the deflector shield (30), the deflector shield (30) causing the flushing solution to momentarily flow against blood flow toward the proximal end of the outer sheath, whereafter the blood flow will carry the solution back past the distal tip of the angioscope (18) to provide a clear viewing field, the angioscope (18) being mounted within the irrigating catheter (12) such that the viewing end of the angioscope extends beyond the distal end of the irrigating catheter (12).
Claim 2
Dependent Claim 32 words
The angioscope catheter apparatus (10) according to claim 1 characterized in including means (20) for introducing flush solution to the interior of the vessel at the viewing end of the angioscope (18).
Claim 3
Dependent Claim 119 words
The angioscope catheter apparatus (10) according to claims 1 and 2 characterized in that outer sheath (14) has distal and proximal ends, the irrigating catheter (12) being disposed within the outer sheath (14) for sliding movement with respect to the outer sheath (14), the outer sheath including a plurality of longitudinal slitted sections(16) formed circumferentially near its distal end, the outer sheath (14) and the irrigating catheter (12) being connected at their distal ends such that when the irrigating catheter (12) moves proximally with respect to the outer sheath (14), the slitted sections (16) spray out radially and symmetrically about the longitudinal axis of the angioscope catheter to center the viewing end of the angioscope (18) within the vessel.

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