Needlescopic instrument with reusable handle and detachable needle assembly

An apparatus to deploy a disposable needle assembly of a surgical device, the apparatus comprising:

• a disposable needle assembly, a reusable handle assembly, and a retraction slide,
• wherein the disposable needle assembly is configured to be inserted into the reusable handle assembly, the disposable needle assembly including a needle member having a sharpened distal tip, a needle shaft with an inner surface that defines a needle shaft lumen, and a needle hub detachably coupled to the handle assembly and defining a needle hub lumen,
• wherein the needle shaft is extendable through the needle hub lumen and into an interior of the handle assembly via a sliding shaft in the interior of the handle assembly, the disposable needle assembly also having a grasping assembly that longitudinally translates through the needle shaft lumen, the grasping assembly having arms coupled to or integrally formed with an arm shaft, the reusable handle assembly including a crank assembly for coupling a trigger to the sliding shaft for actuating the needle shaft, a primary return spring for biasing the sliding shaft proximally and the trigger distally so as to extend the arms of the grasping assembly in a manner that spreads the arms apart from each other at a location beyond the sharpened distal tip of the needle member,
• wherein the disposable needle assembly and the grasping assembly are configured and arranged to be selectively manipulated with the reusable handle assembly relative to each other and relative to the needle hub and relative to the reusable handle assembly, and
• wherein the retraction slide is configured and arranged to be manipulated to selectively longitudinally translate a proximal member within the needle shaft lumen and within the sliding shaft, the retraction slide interfacing with a proximal end of the proximal member to translate the arm shaft and the arms of the grasping assembly relative to the needle member, the proximal member being configured and arranged to define an interference fit with an interior surface of the needle shaft lumen and an interior surface of the needle hub lumen to rotatably fix the needle member to the grasping assembly.