Patent ID: 8226682

Claim:
A tissue closing device comprising: a closure configured to close a hole penetrating a tissue membrane of a living organism; and an arrangement device which retains the closure for delivery to the hole of the tissue membrane and positions the closure at the hole of the tissue membrane to close the hole with the closure; the closure comprising: a seal part for covering, from one side surface of the tissue membrane, the hole penetrating the tissue membrane and a peripheral part of the hole; and a deformable deformation part; the arrangement device comprising: an elongated part comprising, at a distal portion of the elongated part, an opening part configured to retain the deformation part of the closure and to penetrate the hole in the tissue membrane; a retaining member located at the distal portion of the elongated part in an initial condition of the retaining member, the retaining member retaining the closure in an initial condition, at least a part of the retaining member being movable relative to the elongated part in a proximal direction; and the at least a part of the retaining member being movable relative to the elongated part in the proximal direction to push the deformation part of the closure into the opening part of the elongated part to thereby make a transition from the initial condition in which the closure is retained in the retaining member to a condition in which the deformation part of the closure is retained at the distal portion of the elongated part; wherein: the retaining member comprises a proximal-side member and a distal-side member, the distal-side member of the retaining member being positioned on a distal side of the proximal-side member and movable relative to the proximal-side member; and the distal-side member comprises a compressing part by which the deformation part of the closure is compressed in a radial direction of the elongated part, as the distal-side member is moved relative to the proximal-side member, as compared to a configuration of the closure in the initial condition.