Abstract: Disclosed is an assembly of parts for an endourological procedure, including a tubular sheath and an introducer, the tubular sheath being removably mounted on the introducer. The introducer comprises a security channel that is openable to shift a guidewire from a position inside the security channel to a position outside and next to the tubular sheath. Disclosed are also access sheaths and a method of performing an endourological procedure.

Abstract: Disclosed is an assembly of parts for an endourological procedure including a tubular sheath and an introducer, the tubular sheath being removably mounted on the introducer. The tubular sheath includes a first and a second lumen of which the second lumen is openable to shift a guidewire from a position inside the second lumen to a position outside and next to the tubular sheath. Disclosed are also access sheaths and a method of performing an endourological procedure.

Abstract: Assembly for positioning an access sheath and a security guide next to the access sheath where the access sheath is adapted to be threaded onto a catheter. The catheter includes a groove extending between an outer hole and an inner hole which groove has a greater width than a width of the security guide. The access sheath includes an opening extending longitudinally from a distal end of the access sheath and is rotatable around the catheter between an open position in which the opening of the access sheath at least partially coincides with the groove of the catheter and enables the release of the security guide, and a closed position in which the access sheath covers the groove of the catheter maintaining the security guide within the groove.

Abstract: Disclosed is an assembly of parts for an endourological procedure, including a tubular sheath and an introducer, the tubular sheath being removably mounted on the introducer. The introducer comprises a security channel that is openable to shift a guidewire from a position inside the security channel to a position outside and next to the tubular sheath. Disclosed are also access sheaths and a method of performing an endourological procedure.

Abstract: A catheter for positioning an access sheath and a security guide next to the sheath for an intervention in a difficult-to-access area within the body. The catheter comprises at least one security channel for positioning a guide, extending between an outer hole and an inner hole. A wall of the catheter extends between both holes of the security channel arranged to open under an action of peel strength directed from inside to outside the channel.