Inserting member lead-out device

1 . An inserting member lead-out device for inserting a linear inserting member through wall-like tissues of the living body, the inserting member lead-out device comprising:

a main body being arrangeable on one side of the wall-like tissues in a wall-thickness direction of the wall-like tissues;

a perforating member for forming a perforation hole being perforated in the wall-like tissues in a first direction from the one side toward an other side, wherein the perforating member is movable relative to the main body; and

a connector configured to connect the perforating member and the inserting member, wherein the connector comprises a first connecting portion being connectable to the perforating member at one end side of the connector and a second connecting portion being connectable to the inserting member at an other end side of the connector,

wherein the perforating member has a tip portion, and a perforating shaft portion to be a part inserted into the wall-like tissues, wherein the perforating shaft portion is adjacent to the tip portion in a length direction of the perforating member,

wherein a maximum dimension of the perforating shaft portion in a radial direction of the inserting member is smaller than an outer diameter of the inserting member,

wherein the main body has a lead-out hole having an inner space extending along the first direction,

wherein the perforating member is configured to be guided in the first direction and in a second direction opposite to the first direction in an interior of the lead-out hole coaxially to an axial center of the lead-out hole, and

wherein the lead-out hole has a size allowing the connector and the inserting member to be inserted through the lead-out hole when the perforating member is moved in the second direction in a state in which the perforating member is connected to the connector with the connector being connected to the inserting member at the other side of the wall-like tissues.

2 . The inserting member lead-out device according to claim 1 , wherein the inserting member lead-out device further comprises a guide member being insertable at least partially into the lead-out hole,

wherein the guide member has a guide hole to guide the perforating member coaxially to the axial center of the lead-out hole, and

wherein the guide member is configured to be pulled out from the lead-out hole, together with the perforating member.

3 . The inserting member lead-out device according to claim 2 , wherein the guide member comprises a tubular guide portion to be inserted into the lead-out hole, and an extended portion provided to a side in the second direction relative to the guide portion, wherein the extended portion extends radially outward relative to an outer periphery of the guide portion, and

wherein the guide member has an engaging portion to engage with the main body to suppress the guide portion of the guide member from detaching from the lead-out hole.

4 . The inserting member lead-out device according to claim 1 , wherein the perforating member has a stopper portion to restrict an amount of protrusion from the main body of the perforating member to be within a predetermined range.

5 . The inserting member lead-out device according to claim 1 , wherein the connector has a widened portion in which a width in the radial direction is widened to widen the perforation hole perforated with the perforating member when the perforating member is moved in the second direction in the state in which the perforating member is connected to the connector with the connector being connected to the inserting member at the other side of the wall-like tissues.

6 . The inserting member lead-out device according to claim 5 , wherein the widened portion has a tapered portion formed in a shape of a truncated cone widening toward the other end side from the one end side of the connector, and a maximum outer diameter of the tapered portion is equal to or larger than the outer diameter of the inserting member.