Wind up deployment mechanisms for surgical instruments

摘要

A surgical instrument includes a handle assembly having an actuating rod extending therefrom, a rotating member, a release member, and a stop, the actuating rod translatable along a longitudinal axis defined therethrough. The rotating member is disposed within the handle assembly and is configured to operably engage the actuating rod via a cam and link arrangement. The release member includes a first catch configured to lock the rotating member against the force of an energy storage device in a first condition and release the rotating member to rotate in an opposite direction with the force of the energy storage device in a second condition. The stop is disposed on a peripheral edge of the rotating member and is configured to operably engage the first catch when the release member is disposed in the first condition to limit the rotational movement of the rotating member.

主权项

1. A surgical instrument, comprising:
a handle assembly having an actuating rod extending therefrom, the actuating rod defining a longitudinal axis therethrough and configured to translate therealong; a rotating member disposed within the handle assembly and operably engaged to the actuating rod via a cam and link arrangement that converts rotational movement of the rotating member into longitudinal translation of the actuating rod, the rotating member moveable in a first direction to bias an energy storage device; a release member including a first catch configured to lock the rotating member against the force of the energy storage device in a first condition and configured to release the rotating member to rotate in an opposite direction with the force of the energy storage device in a second condition; and at least one stop disposed on a peripheral edge of the rotating member, the at least one stop configured to operably engage the first catch when the release member is disposed in the first condition and configured to limit the rotational movement of the rotating member as the rotating member moves in the opposite direction, wherein the handle assembly includes a window and the energy storage device includes a power indicator, the power indicator viewable through the window.