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A compound frequency alternating magnetic field generating device

A magnetic field generating device and composite frequency technology, applied in the electromagnetic field, can solve problems such as slow positioning and tracking, low data output rate, and insufficient magnetic field frequency accuracy, and achieve the effect of accurate frequency, continuous adjustment, and fast positioning and tracking

Active Publication Date: 2019-08-30
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In view of the above problems, the present invention provides a composite frequency alternating magnetic field generating device, which solves the problems of insufficient frequency accuracy of the magnetic field, low data output rate, and slow positioning and tracking

Method used

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  • A compound frequency alternating magnetic field generating device
  • A compound frequency alternating magnetic field generating device
  • A compound frequency alternating magnetic field generating device

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] A compound frequency alternating magnetic field generating device, such as figure 1 As shown, it includes a three-axis orthogonal magnetic field transmitting antenna group, an excitation current generation circuit group and a magnetic field frequency power control unit

[0039] The three-axis orthogonal magnetic field transmitting antenna group is connected to the excitation current generation circuit group, and after being excited by the current of the excitation current generation circuit group, an alternating composite frequency magnetic field is generated;

[0040] The dipole magnetic f...

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Abstract

The invention provides a composite frequency alternating magnetic field generating device. The generating device comprises a three-axis orthogonal magnetic field transmitting antenna group, an excitation current generating circuit group and a magnetic field frequency power control unit; after each transmitting coil of the three-axis orthogonal magnetic field transmitting antenna group is subjected to current excitation of the excitation current generating circuit group to generate a dipole magnetic field; magnetic fields generated by 3*3 transmitting coils are subjected to vector superposition at a spatial point, and a composite frequency magnetic field is spatially generated; the frequency and intensity of the magnetic field can be continuously adjusted under the control of a control signal of the magnetic field frequency power control unit, and the frequency of the generated composite magnetic field is accurate; the requirement of positioning and tracking data output rate can be met, and the fast positioning and tracking can be achieved.

Description

technical field [0001] The invention relates to the field of electromagnetic technology, in particular to a compound frequency alternating magnetic field generating device. Background technique [0002] With the continuous improvement of people's requirements for medical surgery precision, safety, and visualization, medical surgical navigation has been more and more widely used in neurosurgery, spinal surgery, cardiology, laparoscopic therapy, and endoscopic therapy. [0003] Medical and surgical navigation refers to the accurate correspondence between the preoperative or intraoperative medical image data and the patient's physiological structure, real-time tracking of the position of the medical device in the patient's body, and three-dimensional visual display on the medical image. Traditional surgical navigation uses X-ray imaging, which can only provide two-dimensional position information of interventional devices, requires high experience of surgeons, and will cause gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B34/20
Inventor 钱宇徐玉峰云峰赵川李琳
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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