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Control method for surgical instrument of endoscope surgical robot

A technology of surgical robot and control method, which is applied in the field of surgical instrument control of laparoscopic surgical robot, can solve the problems of less freedom, reduced surgical accuracy, and high friction of instruments, so as to reduce the difficulty and ensure the safe operation

Pending Publication Date: 2020-05-05
CHENGDU BORNS MEDICAL ROBOTICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for complex surgical operations, medical staff often need to operate surgical instruments for a long time
This is a challenge to the physical strength and energy of the doctor, which in turn affects the quality of the operation
[0003] The existing minimally invasive surgical instruments are often simple imitations of traditional open surgical instruments, with less freedom, poor flexibility, and often high friction inside the instrument, which leads to attenuation of transmission force and fatigue of the operator, especially It is the hand tremors caused by the operator's fatigue that will reduce the accuracy of the operation

Method used

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  • Control method for surgical instrument of endoscope surgical robot
  • Control method for surgical instrument of endoscope surgical robot
  • Control method for surgical instrument of endoscope surgical robot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] In a first embodiment of the invention, a surgical instrument 42 has a first degree of freedom (eg, an endoscope). Here, the first degree of freedom of the surgical instrument 42 means that the surgical instrument 42 can rotate around the axis of the instrument shaft 41 of the instrument connection mechanism 4 as the rotation axis (ie, along the X-axis direction). The first degree of freedom of the surgical instrument 42 can mimic the rotational motion of a human arm.

[0117] In this embodiment, the power source 51 of the driving mechanism 5 includes a first motor 511 , and the output shaft of the first motor 511 is disposed in the first hole 121 on the side wall of the fixing seat 12 of the driving seat 1 . In order to improve space utilization, the axial direction of the instrument shaft 41 , the axial direction of the first motor 511 and the length direction of the fixing seat 12 are the same.

[0118] Specifically, the power transmission mode of the first motor 51...

Embodiment 2

[0141] In the second embodiment of the present invention, the surgical instrument 42 has a second degree of freedom (such as a scalpel that cuts only at designated locations). Here, the second degree of freedom of the surgical instrument 42 means that the surgical instrument 42 can be deflected around the Z-axis. The second degree of freedom of the surgical instrument 42 can imitate the deflection action of the human wrist joint.

[0142] In this embodiment, the power source 51 includes a second motor 512 , and the output shaft of the second motor 512 is disposed in the second hole 122 on the side wall of the fixing base 12 . In order to improve space utilization, the axial direction of the instrument shaft 41 , the axial direction of the second motor 512 and the length direction of the fixing seat 12 are the same.

[0143] In this embodiment, the power output by the second motor 512 is transmitted to the instrument rod 41 through the first lead screw 354 and the first seat 3...

Embodiment 3

[0173] In the third embodiment of the present invention, the surgical instrument 42 has a third degree of freedom (for example, surgical scissors that only cut at specified positions). Here, the third degree of freedom of the surgical instrument 42 means that the surgical instrument 42 can be opened and closed. The third degree of freedom of the surgical instrument 42 can imitate the closing and opening movements of human fingers.

[0174] In this embodiment, the power source 51 includes a third motor 513 , and the output shaft of the third motor 513 is disposed in the third hole 123 on the side wall of the fixing base 12 . In order to improve space utilization, the axial direction of the instrument shaft 41 , the axial direction of the third motor 513 and the length direction of the fixing seat 12 are the same.

[0175] In this embodiment, the power output by the third motor 513 is transmitted to the instrument rod 41 through the second lead screw 364 and the second seat 36 ...

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Abstract

The invention relates to a control method for a surgical instrument of an endoscope surgical robot. The endoscope surgical robot comprises a control handle, monitoring equipment, a master control unit, a slave control unit and a second motor; the control method comprises the following steps that deflection angle information corresponding to the control handle when an operator deflects the wrist iscollected by the monitoring equipment, and the collected deflection angle information is transferred to the master control unit; the received deflection angle information is analyzed by the master control unit to determine a wrist deflection angle of the operator, and thus, a corresponding deflection control command is output to the slave control unit; and the second motor is controlled by the slave control unit according to the received the deflection control command to rotate, the surgical instrument is driven through the rotation of the second motor to deflect, and the surgical instrumentand the wrist of the operator deflect synchronously.

Description

technical field [0001] The invention relates to the technical field of robots, in particular to a method for controlling surgical instruments of a laparoscopic surgical robot. Background technique [0002] In minimally invasive surgery, medical personnel are often required to manually cut, strip, suture and other operations on tissues. Especially for complex surgical operations, medical staff often need to operate surgical instruments for a long time to perform operations. This is a challenge to the doctor's physical strength and energy, which in turn affects the quality of the operation. [0003] The existing minimally invasive surgical instruments are often simple imitations of traditional open surgical instruments, with less freedom, poor flexibility, and often high friction inside the instrument, which leads to attenuation of transmission force and fatigue of the operator, especially It is the hand tremors caused by the operator's fatigue that will reduce the accuracy ...

Claims

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Application Information

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IPC IPC(8): A61B34/37A61B17/00
CPCA61B34/37A61B17/00234A61B2034/301A61B2034/302A61B2034/305A61B2017/00477A61B2017/00398A61B2017/0046A61B2017/00199
Inventor 李耀李建辉凌正刚
Owner CHENGDU BORNS MEDICAL ROBOTICS INC
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