EP0633041B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Medical appliances for the treatment of blood vessels by means of ionizing radiation
Assignee: Schneider Europe GmbH
•
Filing: 1993-07-01
•
Granted: 1999-09-15
•
Expires: 2013-07-01
Abstract
Abstract An appliance comprising a catheter 11 in which is centered a guide wire 21 and a radioactive radiation emitter in the form of seeds 41 integrated into the guide wire. Flexible bristles 14 mounted coaxially on the catheter are centering the catheter 11 into a blood vessel 7.
Inventors
- 👤 Youri Popowski
- 👤 Vitali Verine
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/10; A61N5/1001; A61N5/1002; A61M; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1047; A61N2005/1003
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
146 words
A medical appliance for the treatment of a portion
of blood vessel (7) by means of ionizing radiation,
comprising a catheter (1, 10) for percutaneous transluminal
treatment of the blood vessel, an inflatable dilatation
balloon (5) surrounding a portion of the catheter,
a radioactive radiation emitter (4, 40, 45) fitting
in said portion of the catheter and being radially
centered inside the balloon, and means (1, 2, 10) for
advancing, resp. removing, the radioactive radiation
emitter into, resp. from the portion of the blood vessel,
characterized in that the catheter (1) is a two lumen
catheter, the portion of the catheter surrounded by
the balloon (5) is a single lumen catheter, and the
dilatation balloon (5) is mounted coaxially on said
portion of the catheter (1) for radially centering
the radioactive radiation emitter inside the balloon
at the location of dilatation thereof in the blood
vessel.
Claim 2
Dependent Claim
22 words
A medical appliance according to claim 1,
wherein the radioactive radiation emitter (4,
40, 45,) is movable within the catheter
(1, 10).
Claim 3
Dependent Claim
24 words
A medical appliance according to any preceding claim,
wherein the balloon (5) is substantially cylindrical
and annularly affixed by its ends to the catheter.
Claim 4
Dependent Claim
31 words
A medical appliance according to any preceding claim,
wherein the catheter (10) comprises a perfusion
channel connected to openings (8, 9) in the catheter
wall before and after the balloon (5).
Claim 5
Dependent Claim
18 words
A medical appliance according to any preceding
claim, wherein the catheter is a catheter for percutaneous
transluminal angioplasty.
Claim 6
Dependent Claim
21 words
A medical appliance according to any preceding
claim, wherein the radioactive radiation emitter (4,
40, 45) is a beta radiation emitter.
Claim 7
Dependent Claim
19 words
A medical appliance according to any preceding
claim, wherein the radioactive radiation emitter (4,
40, 45) is a filament.
Claim 8
Dependent Claim
21 words
A medical appliance according to claim 6 or 7,
wherein the radioactive radiation emitter (4, 40
45) is of 90 Yttrium.
Claim 9
Dependent Claim
31 words
A medical appliance according to claim 6, wherein
the radioactive radiation emitter (4, 40, 45)
is a filament of 90 Yttrium with a diameter equal to
or less than 0.9 mm.
Claim 10
Dependent Claim
27 words
A medical appliance according to claim 6, wherein
the radioactive radiation emitter (4, 40, 45)
is a filament of 90 Yttrium which is heat elaborated
under vacuum.
Claim 11
Dependent Claim
22 words
A medical appliance according to claim 9 or 10,
wherein the filament has a diameter equal to or less
than 0.2 mm.
Claim 12
Dependent Claim
37 words
A medical appliance according to any preceding
claim, wherein the catheter comprises a guide wire
(2) in sliding fit therein, and wherein the radioactive
radiation emitter is a filament (4, 40, 45)
affixed to said guide wire.
Claim 13
Dependent Claim
39 words
A medical appliance according to any of claims
1 to 11, wherein the catheter comprises a guide wire
(2) in sliding fit therein, and wherein the radioactive
radiation emitter is a filament (45,) coiled
around the said guide wire.
Claim 14
Dependent Claim
45 words
A medical appliance according to any of claims
1 to 11, wherein the catheter comprises a guide wire
in sliding fit therein, and wherein the radioactive
radiation emitter (4, 40, 45) is a filament
affixed to a wire intended to replace the said guide
wire.
Claim 15
Dependent Claim
42 words
A medical appliance according to any of claims
1 to 11, wherein the catheter comprises a guide wire
in sliding fit therein, and wherein the radioactive
radiation emitter (45) is a filament coiled
around a wire intended to replace the guide wire.
Claim 16
Dependent Claim
25 words
A medical appliance according to any of claims
12 to 15, wherein the radioactive radiation emitter
is a filament affixed to a wire of titanium.
Claim 17
Dependent Claim
25 words
A medical appliance according to any of claims
12 to 15, wherein the radioactive radiation emitter
is a filament coiled around a wire of titanium.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.