Tool bit state determining device and method of surgical instrument

Abstract

The invention provides a tool bit state determining device and method of a surgical instrument. The tool bit state determining device comprises a drive shaft connected with a tool bit, a flexible shaft connected with the drive shaft through at least one spring, a light transmitter, a light sensitive element, a signal generating unit and a processing unit. The connecting position for the drive shaft and the flexible shaft comprises at least one light-transmittable element. The light transmitter is used for transmitting transmitted light to the light sensitive element through the light-transmittable element when the surgical instrument is operated. The light-transmittable element is used for receiving the light transmitted by the light transmitter. The signal generating unit is used for generating a corresponding pulse signal according to the light receiving situation of the light sensitive element and outputting the pulse signal. The processing unit is used for obtaining pulse width according to the pulse signal output by the signal generating unit and determining a current working state of the tool bit according to the pulse width. Therefore, the tool bit state determining device can determine the tool bit state of the surgical instrument.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a device and method for determining the state of a cutter head of a surgical instrument. Background technique [0002] With the development and progress of science and technology, minimally invasive laparoscopic surgery is widely used in various surgical treatment fields. Through small incisions, laparoscopic surgical instruments can be inserted inside the body and manipulated outside the body to perform surgery. For example, in one application, a scalpel tip in a surgical instrument may be manipulated to remove a tumor. [0003] At present, the processor can output power, and surgical instruments can be used to perform surgical operations under this power condition. [0004] Since the conditions of the surgical operation site may be inconsistent, such as the toughness and hardness at different positions of the tumor, there may be differences, so the actual power used during ...

AI Technical Summary

Problems solved by technology

[0004] Since the conditions of the surgical operation site may be inconsistent, such as the toughness and hardness at different positions of the tumor, there may be differences, so the actual power used during the operation may be different from the output power of the processor, and the friction force of the cutter head may even be excessive. The case where the blade is too large to burn red

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