Patent ID: 8882788
Filing Date: 2014-11-11
Classification: A61B,A61F

Abstract:
1. A device for sheet insertion used to insert a sheet of a synthetic absorbable anti-adhesion sheet and the like into a targeted in vivo site through a lumen of a trocar in an endoscopic operation, comprising: a cylindrical mantle tube of which front and back ends are opened and inside is formed to be a sheet receiving part, and an extruding member for extruding a sheet, the extruding member being inserted into the mantle tube in a state of moving in a back and forth direction that is a tube-axis direction and of rotatable, wherein the extruding member has a shaft having a longer length than that of the mantle tube, a forked sheet winding part disposed at a tip portion of the shaft, and a gripping part for operation disposed at a back end of the shaft, the sheet winding part is received in the mantle tube by a movement of the extruding member backward, the sheet winding part being protruded from a front opening of the mantle tube by a movement of the extruding member forward; and the mantle tube has axial slits having a size enough to insert the sheet therethrough, which are formed on walls facing each other at the front end of the mantle tube over approximately the same length as a length of the sheet winding part, wherein a stopper mechanism, including a first locking member disposed on the inner circumferential surface of the mantle tube and a second locking member disposed on the outer circumferential surface of the shaft of the extruding member, locks the second locking member to the first locking member by a movement of the shaft backward to prevent the shaft from moving backward further.