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Safety circuit for robotic tool driver bailout

IP.com Disclosure Number: IPCOM000248906D
Publication Date: 2017-Jan-20
Document File: 2 page(s) / 382K

Publishing Venue

The IP.com Prior Art Database

Abstract

Regulation requires electromechanical to enable the tool's removal from tissue without external power. Additionally, an alternative means for removal (bailout) from tissue mitigates risk of primary software fault. Putting the bailout in each tool increases cost and complexity of the disposable. It is desired for the robotic tool driver to have a means of manually removing all robotic tools from tissue. This idea proposes backup circuits for the robotic tool driver that override the main control software to remove the tool from tissue.

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Safety circuit for robotic tool driver bailout

Summary

Regulation requires electromechanical to enable the tool’s removal from tissue without external

power. Additionally, an alternative means for removal (bailout) from tissue mitigates risk of

primary software fault. Putting the bailout in each tool increases cost and complexity of the

disposable. It is desired for the robotic tool driver to have a means of manually removing all

robotic tools from tissue.

This idea proposes backup circuits for the robotic tool driver that override the main control

software to remove the tool from tissue.

Description

Embodiment 1: When a user activates a switch on the tool driver, the main control circuit is

disconnected from the motors and the bailout circuit is connected. The connected bailout circuit

drives each motor in a pre-set direction until a stop condition is reached (e.g. current limit, number

of rotations, etc.)

Embodiment 2: When the tool is connected to the tool driver, parameters on the tool are

transferred to the bailout circuit’s non-volatile memory to set the motors’ directions during bailout

and the motors’ stop conditions. The main control circuit/algorithm is not permitted to start until

the bailout circuit confirms the successful storage of parameters. When a user activates a switch on

the tool driver, the main control circuit is disconnected from the motors and the bailout circuit is

connected. The bailout circuit drives each motor in their stored direction until their...