Respiration signal extracting and respiration movement guiding device

Abstract

The invention discloses a respiratory signal extraction and respiratory movement guide device which comprises a treatment couch, a frame above the treatment couch, a laser generator, three sets of image pick-up units, a display and an image processing center. The frame comprises a crossbeam at the front upper place of the frame and the both sides of the crossbeam are provided respectively with a side beam which can be fixed in a rotatable manner. The laser generator is fixed on the crossbeam and the three sets of image pick-up units are respectively fixed in the center of the crossbeam and in front of the two side beams; a data processing center is connected with a camera and the display respectively. The respiratory signal extraction and respiratory movement guide device has the advantages that: (1) the body surface movement of the breast or abdomen of a patient is traced by the three sets of image pick-up units and then shooting data are processed for extracting respiratory signals of the patient; and (2) simultaneously, video guide and audio guide are carried out to the patient and the extracted respiratory signals of the patient are compared with module signals of respiratory movement so as to ensure that the patient can effectively control the respiratory status of the patient, thereby realizing the respiratory guide.

Description

technical field [0001] The invention relates to a medical device, in particular to a breathing signal extraction and breathing motion guiding device. Background technique [0002] For thoracic and abdominal tumors that are greatly affected by respiratory movement, the key to implementing precise radiotherapy is real-time detection and dynamic tracking of the target area during simulated positioning and radiotherapy implementation. Target area real-time tracking technology can be roughly divided into two categories based on in vivo markers and based on body surface markers. The real-time tracking technology based on in vivo markers often places markers inside or around the tumor, and the fixed relationship between the markers and the tumor can be used to estimate the position of the tumor in real time, such as the X-ray fluoroscopy imaging tumor real-time tracking system developed by Hokkaido University in Japan ( RTRT system). The RTRT system displays the gold particles im...

AI Technical Summary

Problems solved by technology

However, the RTRT system has the following problems: ①The implantation of gold particles is traumatic, which increases the risks of pneumothorax, bleeding, infection, and allergy to anesthetic drugs; ②X-ray fluoroscopy causes additional X-ray exposure; ③During radiotherapy, some gold particles occur dislocation

Studies have shown that, compared with the former two, the combination of video and audio guidance can significantly reduce the residual motion of the tumor, and most patients cannot cooperate with complex audio-visual respiratory movement guidance at the same time. Therefore, it is necessary to improve the extraction method of respiratory signals and Display mode, simplify breathing guidance equipment, and develop a breathing signal extraction and breathing motion guidance device that is easier for patients to cooperate

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