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Virtual scalpel unit

A scalpel and transmission device technology, applied in the direction of educational appliances, instruments, teaching models, etc., can solve the problems of differences in shape and operation mode, expensive equipment, and difficulty in meeting the actual needs of virtual surgery systems

Inactive Publication Date: 2004-11-17
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although PHANTOM's force feedback devices can be used as virtual surgical instruments, the disadvantages are that these devices are expensive and complex in structure
Moreover, it is also very different from the actual surgical instrument in terms of shape and operation mode, so it is difficult to meet the actual needs of the virtual surgical system.

Method used

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  • Virtual scalpel unit
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Examples

Experimental program
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Embodiment Construction

[0010] like figure 2 As shown, a three-dimensional tracking device 10 based on a small-volume, high-precision magnetic sensor is installed on the tip of the system, and the precise position of the tracked scalpel and the posture information of the scalpel are measured by the magnetic sensor.

[0011] Using the invention to perform virtual surgery, when the virtual scalpel is in contact with a virtual human body or a virtual organ, the force feedback device will provide tactile and force feedback to the operator through the virtual scalpel. The force feedback device mainly includes a proportional electromagnet 1, a bracket 2, a return tension spring 3, a sheath 4, a steel wire rope 5, a return compression spring 6, a fixing screw 7, a pressure sensor 8, and a microcontroller 12. The proportional electromagnet 1 of the driving device on the right provides a controllable driving force for the whole system, and the direction of the driving force is to the right. The driving forc...

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PUM

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Abstract

The virtual scalpel unit includes micro controller, scalpel, force transferring device connecting the scalpel and proportional electromagnet for transmitting the drive force from the proportional electromagnet, repositioning spring connected across the force transferring device, force sensor on the scalpel handle for detecting the upward force of the scalpel, and 3D tracking device for detecting the position and posture of the scalpel. The 3D tracking device and the force feeding back mechanism are small and light and has no influence on the action of the operator. The present invention may be used in virtual operation.

Description

technical field [0001] The invention relates to a human-computer interaction device used in virtual surgery, in particular, it can transmit the precise position and attitude information of the virtual scalpel in space to the computer system in real time, and can provide force for the operator according to the needs of the environment. Human-computer interaction equipment with visual feedback function. Background technique [0002] Virtual surgery is an important application of virtual reality technology in the medical field. It can immerse medical personnel in a computer-generated virtual surgical environment, experience and learn how to perform various operations through virtual surgical instruments, and train them to cope with various emergencies. capacity of the situation. In the virtual surgery system, in order to realize the human-computer interaction with the virtual human body or virtual organs, it is necessary to be able to transmit the position and attitude informa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/28
Inventor 原魁臧爱云朱海兵杜清秀
Owner INST OF AUTOMATION CHINESE ACAD OF SCI