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1. (WO1997017098) METHOD OF BALLOON FORMATION BY COLD DRAWING/NECKING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017098 International Application No.: PCT/US1996/015958
Publication Date: 15.05.1997 International Filing Date: 04.10.1996
Chapter 2 Demand Filed: 04.06.1997
IPC:
A61M 25/00 (2006.01) ,B29C 49/04 (2006.01) ,B29C 49/42 (2006.01) ,B29C 55/26 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
25
Catheters; Hollow probes
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
02
Combined blow-moulding and manufacture of the preform or the parison
04
Extrusion blow-moulding
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
42
Component parts, details or accessories; Auxiliary operations
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55
Shaping by stretching, e.g. drawing through a die; Apparatus therefor
22
of tubes
26
biaxial
Applicants:
SCIMED LIFE SYSTEMS, INC. [US/US]; One SciMed Place Maple Grove, MN 55311-1566, US
Inventors:
WANG, Lixiao; US
CHEN, Jianhua; US
LEE, Nao; US
HORN, Daniel, J.; US
Agent:
ANDERSON, William, E., II ; Vidas, Arrett & Steinkraus, P.A. Suite 2000 6109 Blue Circle Drive Minnetonka, MN 55343-9131, US
Priority Data:
08/555,21908.11.1995US
Title (EN) METHOD OF BALLOON FORMATION BY COLD DRAWING/NECKING
(FR) PROCEDE DE FORMATION DE BALLONNETS PAR ETIREMENT/ETRANGLEMENT A FROID
Abstract:
(EN) A method for forming a balloon for a dilatation catheter involving the steps of extruding a segment of thermoplastic material, maintaining the center portion at a temperature below the glass transition of the thermoplastic material, drawing the segment to a predetermined length, wherein after the drawing the wall thickness of the center portion does not appreciably change, and expanding the segment in a mold to produce the balloon.
(FR) L'invention concerne un procédé de formation d'un ballonnet destiné à un cathéter de dilatation, ce procédé comprenant les étapes suivantes: extrusion d'un segment de matière thermoplastique, maintien de la partie centrale à une température inférieure à la température de transition vitreuse de la matière thermoplastique, étirement du segment à une longueur déterminée préalablement, cette longueur étant telle que l'épaisseur de la paroi de la partie centrale ne subit pas de modification sensible après étirement, et dilatation du segment dans un moule en vue de la formation du ballonnet.
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0861104CA2236879