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Virtual operation method and its apparatus

A technology of virtual surgery and surgical instruments, applied in the medical field, can solve the problems that medical surgical instruments do not have the force feedback function and cannot provide tactile feedback to the operator

Inactive Publication Date: 2009-04-08
SOUTH CHINA NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the medical surgical instrument in this patent does not have the force feedback function and cannot bring tactile feedback to the operator.

Method used

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  • Virtual operation method and its apparatus
  • Virtual operation method and its apparatus

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Experimental program
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Embodiment Construction

[0030] The present invention will be described in detail below according to the drawings and specific embodiments.

[0031] The virtual surgery method of the present invention is a method of simulating the operation of real surgical instruments with a virtual surgical instrument, and the virtual surgical instrument can simulate the operations of scalpels, suture needles, surgical scissors and surgical forceps. In one embodiment , the virtual surgical instrument can use the PHANToM Desktop force feedback device from SensAble Technologies to simulate the operation of scalpels, suture needles, surgical forceps and surgical scissors through the PHANToM Desktop force feedback device.

[0032] figure 1 It is a flow chart of the virtual operation of the present invention, which includes:

[0033] S101. Read the geometric model of the virtual surgical instrument, and generate an operation object model according to the imported three-dimensional object model file.

[0034]This step i...

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Abstract

The invention discloses a method of a virtual surgery and a device thereof. The method comprises the following steps: a geometric model of a virtual surgical instrument is read, and an operation object model is generated based on imported operation object model files; the coordinate mapping of the virtual surgical instrument is established based on the corresponding relation between the geometric model and the virtual surgical instrument; the virtual surgical instrument and the operation object model are detected whether to have collision; if the virtual surgical instrument and the operation object model are detected to have collision, force feedback of the virtual surgical instrument is calculated based on a force feedback model of a mass point or the force feedback model of a virtual ball; meanwhile, the position information of the operation object model after collision is calculated; and the coordinate position of the operation object model is updated. The method of the virtual surgery and the device thereof can simulate the operation of various practical surgical instruments; moreover, an operator can obtain the timely force feedback of the virtual surgical instrument and visual feedback of the operation object model.

Description

technical field [0001] The present invention relates to the field of medicine, in particular to a virtual surgery method and device thereof, Background technique [0002] The development of modern science and technology increasingly reflects the intersection and penetration of multiple disciplines. For example, virtual reality is a product of the combination of computer and electronic technology. It is a very realistic simulation environment. Through a variety of sensing devices, users can use their natural skills to inspect and operate objects in the virtual world according to their own feelings. , while providing intuitive and natural real-time perception of sight, hearing, touch, etc., and enabling participants to produce immersive interactive simulations. The application of virtual reality in the medical field has made virtual surgery a developing research direction. For example, virtual surgery uses various medical imaging data and virtual reality technology to establi...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06T17/00
Inventor 鲍苏苏方驰华潘家辉范应方徐清振
Owner SOUTH CHINA NORMAL UNIVERSITY
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