Wind up deployment mechanisms for surgical instruments

A method for actuating a surgical instrument, the method comprising:

• biasing an energy storage device of a surgical instrument in a first direction, the surgical instrument including:
• a handle assembly having an actuating rod extending therefrom, the actuating rod defining a longitudinal axis;
• a rotating member disposed within the handle assembly;
• a release member including a first catch;
• and
• at least one stop disposed on a peripheral edge of the rotating member;
• locking the rotating member against the force of the energy storage device by engaging the at least one stop with the first catch of the release member;
• translating the actuating rod along the longitudinal axis by releasing at least a portion of the energy from the energy storage device;
• and
• determining the amount of energy stored within the energy storage device by viewing a power indicator through a window defined by the handle assembly.

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 release member further includes a second catch that is selectively engagable with the at least one stop and configured to toggle with the first catch to limit the rotational movement of the rotating member.

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
• a pair of stops disposed on a peripheral edge of the rotating member, at least one of the plurality of stops 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, the pair of stops equally spaced relative to one another about the peripheral edge of the rotating member, and wherein a first stop of the pair of stops is positioned on the peripheral edge of the rotating member such that when the first stop engages the first catch the actuating rod is disposed in an extended position and wherein a second stop of the pair of stops is positioned on the peripheral edge of the rotating member such that when the second stop engages the first catch the actuating rod is disposed in a retracted position.

A method for actuating a surgical instrument, the method comprising:

• biasing an energy storage device of a surgical instrument in a first direction, the surgical instrument including:
• a handle assembly having an actuating rod extending therefrom, the actuating rod defining a longitudinal axis;
• a rotating member disposed within the handle assembly;
• a release member including a first catch;
• and
• at least one stop disposed on a peripheral edge of the rotating member;
• locking the rotating member against the force of the energy storage device by engaging the at least one stop with the first catch of the release member;
• and
• translating the actuating rod along the longitudinal axis by releasing at least a portion of the energy from the energy storage device wherein translating the actuating rod includes releasing the rotating member by disengaging the first catch of the release member from the at least one stop to permit the rotating member to rotate in a second direction opposite the first direction with the force of the energy storage device;
• and
• limiting the rotational movement of the rotating member as the rotating member moves in the second direction with a second catch of the release member.

A method for actuating a surgical instrument, the method comprising:

• biasing an energy storage device of a surgical instrument in a first direction, the surgical instrument including:
• a handle assembly having an actuating rod extending therefrom, the actuating rod defining a longitudinal axis;
• a rotating member disposed within the handle assembly;
• a release member including a first catch;
• and
• at least one stop disposed on a peripheral edge of the rotating member;
• locking the rotating member against the force of the energy storage device by engaging the at least one stop with the first catch of the release member;
• and
• translating the actuating rod along the longitudinal axis by releasing at least a portion of the energy from the energy storage device wherein biasing the energy storage device in a first direction includes the at least one stop urging the first catch of the release member away from the rotating member as the rotating member is rotated in the first direction.