A percutaneous tissue track closure assembly (2) includes a semipermeable barrier (26) mounted to the distal end of a tubular barrier carrier (20). The barrier is passed down a tissue track (12) and into a blood vessel (18) where the barrier is expanded to close off the blood vessel opening (14). A syringe...http://www.google.com.au/patents/US6699262?utm_source=gb-gplus-sharePatent US6699262 - Percutaneous tissue track closure assembly and method
