Granted Patent B2

US 12,193,668 · App. 18/338,766 · Granted Jan 14, 2025

Inventors: Kevin Hudson (Rancho Santa Margarita, CA); Andy Pham (Rancho Santa Margarita, CA); Jonathan R. Nash (Rancho Santa Margarita, CA); Zachary W. Gyugyi (Irvine, CA); Travis Bautista (Rancho Santa Margarita, CA); Jonathan Von Stein (Rancho Santa Margarita, CA); Ata Kiraz (Mission Viejo, CA); Eric J. Weiss (San Clemente, CA)

Assignee: Applied Medical Resources Corporation

A61B17/07207A61B2017/00398A61B2017/0046

Abstract

Claims (13)

1. A handle assembly for a surgical stapler, the handle assembly comprising:

a handle body, the handle body comprising a stationary handle and a trigger pivotably coupled to the handle body;

an electric motor disposed within the handle body, the motor comprising an output shaft;

an actuation shaft slidable within the handle body along a longitudinal axis, the actuation shaft comprising a rack formed thereon;

a motor gear coupled to the output shaft of the motor; and

an auxiliary gear in driven engagement with the motor gear and operatively engaged with the rack,

a control system operable to control the electric motor, the control system comprising a startup module operable upon application of power to the control system, wherein the startup module comprises a new handle submodule configured to assess whether an unused handle is in condition for operation, a used handle submodule configured to assess whether a used handle is in condition for operation, and a reset detected submodule configured to detect a prior power reset condition and wherein upon initiation of the startup module, the startup module determines a status of the control system and executes one of the new handle submodule, the used handle submodule, and the reset detected submodule.

2. The handle assembly of claim 1 , wherein the reset detected submodule is configured to return the actuation shaft to a proximal position.

3. The handle assembly of claim 1 , wherein the control system further comprises a reset detected submodule switch to selectively disable the reset detected submodule.

4. The handle assembly of claim 1 , wherein the used handle submodule is configured to monitor a longitudinal position of the actuation shaft and a pivotal position of the trigger and to disable operation of the handle assembly if either of the longitudinal position of the actuation shaft and the pivotal position of the trigger is outside of a corresponding operational range.

5. The handle assembly of claim 1 , wherein the new handle submodule comprises a first portion configured to identify the presence of an external memory module, authenticate the unused handle, and verify operation of the motor and position of the actuation shaft.

6. The handle assembly of claim 1 , wherein upon completion of the first portion of the new handle submodule, the new handle submodule is configured to set a powered on operational state in the control system.

7. The handle assembly of claim 6 , wherein the new handle submodule further comprises a second portion, the second portion configured to monitor a longitudinal position of the actuation shaft and a pivotal position of the trigger and to verify that both of the longitudinal position of the actuation shaft and the pivotal position of the trigger is within a corresponding operational range, and wherein upon completion of the first portion of the new handle submodule, the new handle submodule initiates the second portion configured to verify that the unused handle is in condition for operation.

Assignments (1)

Continuity (3)

References Cited (400)