Patent ID: 11925382
Assignee: FINEHART
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A coring device for forming an opening in a tissue wall, this device comprising:
a body having a longitudinal axis, said body having a proximal end and a distal end, said body having an internal housing,
a coring head having a transection blade, this head being movable between a rest position and an actuated position, said transection blade being an annular cutting member mounted on the proximal end of said coring head and being configured to cut a cylindrical mass of tissue when displaced from the actuated position back to the rest position,
an actuation mechanism for moving said head between said positions, said mechanism having an actuation rod, at one end of which said movable head is placed, and
the distal end of said body forms a support for a surgical tool, this tool support being configured
to receive a hollow surgical tool by positive engagement and to support this tool, this tool surrounding the distal end of said body when it is placed A on said tool support, by being coaxial with said coring axis, and
to permit linear guiding of said surgical tool during movement of the coring device, along the longitudinal axis and in that,

said tool support has an outer peripheral wall which is tubular and of a diameter equal to or substantially equal to the diameter of said transection blade so the outer surface of the transection blade is flush, or substantially flush, with the outer peripheral wall of the tool support, and in that,
said device comprises a lumen extending through at least the proximal end of said body, said actuation rod and said coring head in order to allow the passage of a flexible guide element, said coring device comprising such a flexible guide element.