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Patent

Apparatus and method for restricting the discharge of fasteners from a tool

TLDR
In this paper, a method for discharging fastening elements and a method of preventing a device from discharging a fastening device into human flesh was described. But the method was not discussed.
Abstract
A device for discharging fastening elements, and a method of preventing a device from discharging fastening devices into human flesh, are disclosed. The device includes a coil proximate a location of discharge, a capacitive element coupled in parallel with the conductive coil to form a resonant tank circuit, an oscillator that drives the tank circuit, a frequency detector, an amplitude control circuit and a processor. The detector detects a frequency of oscillation of the tank circuit as affected by a material proximate the coil. In response to an electrical signal from the oscillator, the control circuit generates a control signal that is provided back to the oscillator. Based upon the frequency and an additional signal functionally related to the control signal, the processor provides an output signal that prevents the device from discharging when the material proximate the coil is human flesh.

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Citations
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Patent

Sterilization verification circuit

TL;DR: In this paper, the authors presented a surgical instrument control circuit with a primary processor, a safety processor, and a segmented circuit comprising a plurality of circuit segments in signal communication with the primary processor.
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TL;DR: In this paper, a surgical instrument control circuit with a primary processor, a safety processor, and a segmented circuit is presented, where the safety processor is configured to transition the primary processor and at least one of the plurality of circuit segments from an active mode to a sleep mode and from the sleep mode to the active mode.
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Power management through segmented circuit and variable voltage protection

TL;DR: In this article, a surgical instrument control circuit with a primary processor, a safety processor, and a segmented circuit is presented, which includes a plurality of circuit segments in signal communication with the primary processor.
References
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Patent

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Paul W. Mayer
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