SUTURE-BASED CLOSURE WITH HEMOSTATIC TRACT PLUG

摘要

Devices for closing a passage through tissue communicating with a body lumen. The device may include an elongate body, a sheath disposed at the distal end of the device for disposition within a body lumen, a hollow needle disposed within a needle lumen of the body, the needle being selectively advancable through the needle lumen, a suture-anchor ejection mandrel disposed within the hollow needle that is also selectively advancable through the hollow needle, a suture-anchor and suture disposed within the hollow needle, a distal end of the suture attached to the suture anchor for ejection out the hollow needle by the mandrel. A needle guide disposed between the sheath and proximal end of the body may include a needle port through which the needle can exit. A hemostatic plug is disposed over the needle port so as to be penetrated by the needle upon exiting the port.

主权项

1. A device for closing a passage through tissue communicating with a body lumen, the device comprising:
an elongate device body extending from a proximal end to a distal end; a sheath disposed at the distal end of the device for disposition within a body lumen during use; at least one hollow needle disposed within a corresponding needle lumen of the elongate body, the at least one hollow needle being selectively advancable through the needle lumen; at least one suture-anchor ejection mandrel disposed within the at least one hollow needle, the at least one suture-anchor ejection mandrel being selectively advancable through the hollow needle; a suture-anchor and suture disposed within the hollow needle for ejection out a distal end of the hollow needle by the suture-anchor ejection mandrel, a distal end of the suture being attached to the suture-anchor; a needle guide disposed between the sheath and the proximal end of the elongate body, the needle guide comprising at least one needle port through which the corresponding hollow needle can exit during use; at least one hemostatic plug disposed over the needle port, within a receiving recess disposed about the needle port on an exterior surface of the needle guide so as to be penetrated by a corresponding hollow needle during use; a needle advancement assembly disposed on or within the elongate body configured to selectively deploy the at least one hollow needle through the needle port and into tissue adjacent the passage during use; and a suture-anchor ejection assembly disposed on or within the elongate body configured to selectively advance the at least one suture-anchor ejection mandrel so as to eject the suture-anchor from the hollow needle to a location adjacent a wall of the body lumen during use.