| 摘要 |
A wound suturing device is provided, comprising a housing and an elongated shaft connected thereto and at least one needle within the shaft, the at least one needle configured to travel distally across a tissue engaging gap within a tissue engaging section positioned distally from the housing on said shaft, wherein the tissue receiving gap has two opposing surfaces into which one side of a wound can be received, wherein the gap is shaped to have a depth to facilitate the placement of the edge of a wound therein such that at least one surface comprises a stop surface, wherein the stop surface is squared at a middle portion thereof to provide good tactile feel to the surgeon when tissue is engaged. A trigger mechanism for actuating at least one needle is also provided, the trigger mechanism configured to prevent incomplete needle actuation, the trigger mechanism comprising a housing and a trigger configured to move relative to said housing, at least one track means positioned on one of the trigger and the housing, the at least one track means including a first end portion and a second end portion and a plurality of ratchet teeth between the first and second end portions, and a pin means slideable within the track means as the trigger is actuated in a first direction, the pin means engaging the ratchet teeth as the trigger is actuated, wherein each of the ratchet teeth prevent movement of said trigger in a second direction as the ratchet teeth engage the pin means. An automatic needle sector mechanism is also provided, configured relative to and including a needle trigger mechanism, the automatic needle selector mechanism comprising a trigger mechanism movable relative to a housing, the trigger mechanism engageable with a selector arm such that the engaged selector arm is in a first position prior to actuation of the trigger mechanism, and wherein the engaged selector arm is in a second position subsequent to actuation of the trigger mechanism.
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