Access valve

An access port on a laparoscopic device the access port having a cylindrical diaphragm with a longitudinal aperture therethrough, a flexible member passed circumferentially around the cylindrical diaphragm and extending radially and/or tangentially therefrom and an extension arrangement to pull the flexible member radially and/or tangentially to constrict the diaphragm to at least partially close off the longitudinal aperture through the access port.

An access valve on a intraluminal deployment device having a catheter, the catheter having an access point at a proximal end thereof, the access point being adapted for the insertion of deployment devices or prostheses and the access valve to close off the access point the valve arrangement having a cylindrical diaphragm with a longitudinal aperture therethrough, a flexible member passed circumferentially around the cylindrical diaphragm and extending substantially radially and/or tangentially therefrom and an extension arrangement to pull the flexible member radially and/or tangentially to constrict the diaphragm to at least partially close off the longitudinal aperture in the valve arrangement.