EP0405831B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Coaxial PTCA catheter with anchor joint
Assignee: Medtronic Vascular Inc
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Filing: 1990-06-20
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Granted: 1995-06-07
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Expires: 2010-06-20
Abstract
No abstract record available.
Inventors
- 👤 Michael D. Barbere
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-22 23:18
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1006; A61M2025/0001; A61M2025/0003; A61M2025/0004; A61M25/0067; A61M25/0074; A61M2025/0079; A61M25/1027
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
209 words
A coaxial balloon dilatation catheter comprising an elongate catheter shaft (10) with a proximal end and a distal end, the shaft being formed from an inner tube (18) and a surrounding outer tube (20), the inner tube extending distally of the distal end of the outer tube; the inner and outer tubes (18, 20) defining an annular inflation lumen (24) therebetween, the inner tube defining a guidewire lumen (22) therethrough; a dilatation ballon (16) having a proximal end and a distal end, the proximal end of the balloon being attached to the distal region of the outer tube (20), the balloon being attached at its distal end to the distal region of the inner tube (18); means (40) for communicating the annular inflation lumen (24) with the interior of the balloon to facilitate inflation and deflation of the balloon (16); and means at the proximal end of the catheter for communicating with the guidewire and inflation lumens, the catheter being characterized by means (36, 38) for resisting axial telescoping of the inner tube (18) with respect to the outer tube (20), said shaft (10) comprising only said inner and outer tubes (18, 20); and the inflation lumen (24) and guidewire lumen (22) comprising the only lumens in said shaft.
Claim 2
Dependent Claim
54 words
A coaxial balloon dilatation catheter as claimed in claim 1 characterised in that the means (36, 38) for resisting said telescoping between the inner and outer tubes comprises the inner tube (18) which is attached to the outer tube (20) at a location (38) distally of the proximal end of the catheter shaft (10).
Claim 3
Dependent Claim
31 words
A coaxial balloon dilatation catheter as claimed in claim 2 characterised in that the outer tube (20) is attached to the inner tube (18) at the region of the balloon (16).
Claim 4
Dependent Claim
36 words
A coaxial balloon dilatation catheter as claimed in claim 3 characterised in that the distal end (36) of the outer tube (20) is attached to the inner tube (18) at a location within the balloon (16).
Claim 5
Dependent Claim
47 words
A catheter as claimed in any preceding claim characterised in that the means communicating the inflation lumen (24) with the interior of the balloon (16) comprises aperture means associated with the outer tube (20) for communicating the inflation lumen (24) with the interior of the balloon (16).
Claim 6
Dependent Claim
31 words
A catheter as claimed in claim 5 characterised in that the aperture means comprises apertures (40) formed in the portion of the outer tube (20) that is disposed within the balloon.
Claim 7
Dependent Claim
56 words
A catheter as claimed in claim 5 or claim 6 characterised by an annular spacer (38) interposed between the inner and outer tubes (18, 20) at the end of the inflation lumen (24), the annular spacer (38) being attached to each of the inner and outer tubes (18, 20) to define the point of connection therebetween.
References Cited (Backward Citations)
No citation records indexed.
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