| 主权项 |
1. A suturing device for tubular tissue, comprising:
a handle assembly, the handle assembly including a trigger assembly; an elongated shaft extending from the handle assembly; and an end effector assembly disposed on a distal end of the elongated shaft, the end effector assembly including:
at least one first guide tube extending distally from the elongated shaft, the at least one first guide tube housing at least one elongated member;a mating plate extending distally from the elongated shaft;a hinge assembly including a hinge, the hinge assembly pivotably supported on the mating plate;a clamshell having at least one aperture configured for locating the at least one first guide tube, the clamshell including:
a first clamshell portion operatively coupled to the hinge; anda second clamshell portion operatively coupled to the hinge, wherein the first and second clamshell portions are actuatable between a first configuration and a second configuration; anda probe configured for disposal in a graft tubular tissue circumferentially offset from the clamshell, the probe having:
at least one aperture housing a second guide tube, the second guide tube attached to a suture having a first end and a second end; anda slot configured to locate the mating plate, wherein a first actuation of the trigger assembly approximates the first and second clamshell portions around graft tubular tissue with the probe disposed therein such that the mating plate extending from the elongated shaft is inserted into the slot defined in the probe and a second actuation of the trigger assembly deploys the at least one elongated member to puncture graft tubular tissue and mate with the at least one aperture of the probe such that extraction of the at least one elongated member simultaneously draws out the first end of the suture through the punctured graft tubular tissue. |
