Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1985-10-15
1989-02-21
Cashion, Jr., Merrell C.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156212, 156214, 156245, 156294, 1563031, 264127, 264322, B32B 3128
Patent
active
048061824
ABSTRACT:
A method of attaching a plastic hub member to the proximal end of a Teflon-lined thermoplastic tubular catheter so as to prevent delamination of the Teflon lining at the site of the attachment. The thermoplastic outer layer of the tubular catheter is removed in a grinding operation for a predetermined distance from the proximal end of the tube to expose a short length of the Teflon lining. Next, a spinning forming tool is forced against the proximal end of the tubular catheter causing the exposed Teflon lining to be rolled back over the outer surface of the thermoplastic tube. Next, the proximal end of the catheter is inserted into the bore of the hub and because the Teflon layer has been rolled over the end portion of the tubular catheter, it is trapped against an internal flange formed in the catheter hub when the hub is adhesively bonded to the exterior of the thermoplastic layer and prevented from delaminating and possibly occluding the lumen of the catheter.
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Rydell Mark A.
Shockey Rick L.
Cashion Jr. Merrell C.
Haugen Orrin M.
Nikolai Thomas J.
Schneider-Shiley (U.S.A.) Inc.
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