| 摘要 |
PROBLEM TO BE SOLVED: To provide a detachable tip microcatheter.SOLUTION: A microcatheter 10 for delivering embolic agent to a vascular site is provided with a biocompatible or biocompatible and biodegradable tip 30 which can be detachably engaged to the microcatheter body by a thermoplastic sleeve 26. Once the embolic agent is delivered to a desired vascular site, the tip of the microcatheter is often entrapped within the mass of the liquid embolic fluid. Using the microcatheter, the clinician can retract the microcatheter at a predetermined retraction force, thereby disengaging the tip from the microcatheter body and allowing for easier removal of the microcatheter. |
