ELECTROMECHANICAL SURGICAL SYSTEMS

摘要

An electromechanical surgical system includes an electromechanical surgical device, an adapter assembly, and a surgical loading unit. The adapter assembly includes a rotatable drive sleeve configured to receive a rotatable drive connector of the surgical device, a single rotatable drive shaft rotatably connected to the drive sleeve, and a gear disposed around a distal end of the drive shaft. The loading unit includes a cartridge jaw including a mounting portion defining a receiving channel, a power screw disposed within the receiving channel, a gear member mounted on a proximal portion of the power screw and operably engagable with the gear of the adapter assembly, and a locking mechanism disposed within the mounting portion for locking the loading unit to the adapter assembly that is movable between an unlocked position when the cartridge jaw is free of a cartridge and a locked position when a cartridge is loaded therein.

主权项

1. An electromechanical surgical system, comprising:
a handheld electromechanical surgical device including at least one rotatable drive connector supported in a handle housing; an adapter assembly selectively connectable to the surgical device, the adapter assembly including at least one rotatable drive sleeve configured to receive the at least one rotatable drive connector, a single rotatable drive shaft rotatably connected to the at least one rotatable drive sleeve and longitudinally extending to a distal end of the adapter assembly, and a gear disposed around a distal end of the rotatable drive shaft and configured to rotate with the rotatable drive shaft; and a surgical loading unit comprising an anvil jaw and a cartridge jaw that are operatively joined to one another such that the anvil jaw and the cartridge jaw are movable between open and closed positions relative to one another, the cartridge jaw including:
a mounting portion defining a receiving channel;a power screw disposed within the receiving channel of the mounting portion;a gear member mounted on a proximal portion of the power screw and operably engagable with the gear of the adapter assembly; anda locking mechanism disposed within the mounting portion for locking the surgical loading unit to the adapter assembly, the locking mechanism being movable between an unlocked position when the cartridge jaw is free of a cartridge and a locked position when a cartridge is loaded into the cartridge jaw.