ST. JUDE MEDICAL; ATRIAL FIBRILLATION DIVISION; INC.
发明人:
GUO, XIAOPING,STEHR, RICHARD E.,EPSHTEYN, VITALIY G.,HOLMAN, BRUCE P.,SAUTER, DONALD A.,POTTER, DANIEL J.,THORSTENSON, CHAD A.,PERERA, NALIN S.
申请号：
CA2604709
公开号：
CA2604709C
申请日:
2006.04.28
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
A splittable/peelable tubular body (2) of a catheter or sheath wherein thetubular body (2) has a splittable/peelable atraumatic tip (14) is disclosed.The atraumatic tip (4) is generally softer than the tubular body (2). Thetubular body (2) and atraumatic tip (4) each comprise a peel mechanismlongitudinally extending along their respective lengths. The peel mechanismsare formed by longitudinally extending regions of interfacial bonding (11)between first and second longitudinally extending strips (8, 10) of polymermaterial. Each strip (8, 10) forms at least a portion of an outercircumferential surface of the tubular body (2) and atraumatic tip (4). Aregion of stress concentration extends along the region of interfacialbonding. The stress concentration facilitates the splitting of the tubularbody (2) and atraumatic tip (4) along their respective peel mechanisms.
