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Force collecting device of surgical knife

A collection device, scalpel technology, applied in the direction of surgery, measuring devices, medical science, etc., to achieve the effect of reducing cost and time, facilitating surgery or cutting tests, and reducing calculation work

Inactive Publication Date: 2005-10-05
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

There is no standard method to simulate the cutting process, and there are few literatures to study, analyze and model the real force of the blade during the actual scalpel cutting soft tissue and the deformation of soft tissue

Method used

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  • Force collecting device of surgical knife
  • Force collecting device of surgical knife

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Such as figure 1 As shown, a high-precision three-dimensional tracking device is installed on the side of the system, and the precise position of the tracked scalpel and the posture information of the scalpel are measured through a magnetic sensor.

[0020] When using the present invention for surgery or cutting test, such as figure 2 As shown, the scalpel handle 5 is installed in the sleeve 4 through the rotating shaft 6; the scalpel cutting object 8 receives the force f that makes it rotate counterclockwise around the rotating shaft 6, and the rear end of the scalpel handle rotates at a small angle and the contact force The force-bearing ball of the sensor 3 is in contact with it and receives a balance force F that rotates clockwise around the rotating shaft 6. When the scalpel is inclined at different angles, the contact points between the blade and the cutting plane are different, and the force arm l changes accordingly. According to the moment balance principle FL=fl,...

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PUM

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Abstract

The invention relates to a force gather device for the surgery operation including computer and knife, signal line, acceleration meter, contact force sensor, sleeve, knife handle, shaft, knife blade and three dimension tracking device. The acceleration meter and knife handle is inserted in the sleeve with the acceleration sensor at the end. The knife handle links with the sleeve by the shaft, the blade is installed on the handle and the contacting force sensor is at the middle lower part of the sleeve. The lower part of the handle contacts with the contacting force ball on the sensor, the three dimension tracking device is installed by the side of the force gather device. The structure is tight, and the application is convenience with a real-time acknowledgement of the force on the knife, the position of the knife and the direction, speed data. It supplies the nessecory factor for simulated operation and with practical application value.

Description

Technical field [0001] The invention relates to the technical field of a force collection device for surgical instruments used in surgical operations, in particular to a force collection device for a scalpel. Background technique [0002] Virtual surgery is an important application of virtual reality technology in the medical field. It can immerse medical staff in a computer-generated virtual surgery environment, experience and learn how to perform various operations through virtual surgical instruments, and train to cope with various emergencies The capacity of the situation. In the virtual surgical system, in order to realize the human-computer interaction with the virtual human body or virtual organ, it must be able to transmit the position and posture information of the virtual surgical instrument in space to the computer system that generates the virtual scene in real time; at the same time, in order to make The operator can complete various operations immersively in the vir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/32G01D21/02
Inventor 原魁臧爱云严志刚付玉锦
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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