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Respiration detecting method and its device for diagnosing early lung cancer

A breathing detection and lung cancer technology, applied in the evaluation of respiratory organs, etc., can solve the problems of inability to perform early diagnosis, large patient trauma, and large equipment, and achieve the effects of small detection devices, wide detection range, and convenient use.

Inactive Publication Date: 2005-08-03
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

At present, clinically, common diagnostic methods for lung cancer include: X-ray examination, computerized tomography (CT), magnetic resonance tomography (MRI), sputum exfoliated cell examination, fiberoptic bronchoscopy, percutaneous lung biopsy, etc. These methods require bulky and expensive equipment, are invasive to the patient, require skilled operators, and most importantly, cannot perform early diagnosis

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  • Respiration detecting method and its device for diagnosing early lung cancer
  • Respiration detecting method and its device for diagnosing early lung cancer
  • Respiration detecting method and its device for diagnosing early lung cancer

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Embodiment Construction

[0021] 1. Concrete structure of the present invention:

[0022] Such as figure 1 As shown, a device for the breath detection method for diagnosing early lung cancer, including a solid phase microextraction head 1, a gas thermal desorber 2, a signal processor 6 (frequency 1k ~ 1MHz), a computer 7 (PC) . The solid-phase microextraction head 1 is inserted into the gas thermal desorber 2, the outlet of the gas thermal desorber 2 is connected to the inlet of the capillary separation column 3 installed in the temperature control box, and the outlet of the capillary separation column 3 installed in the temperature control box passes through The detection head interface 4 reaches the organic gas sensitive film of the detection head 5, and the generated difference frequency signal is sent to the signal processor 6 and then connected to the computer 7.

[0023] Such as figure 2 As shown, the detection head 5 includes: LiNbO propagating at 128° Y cut X 3 Two groups of interdigitated...

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Abstract

The present invention discloses a kind of respiration detecting method and apparatus for diagnosing lung cancer in early stage. The method includes solid phase micro extraction to pre-enrich the exhaled gas of the patient, inserting the solid phase micro extraction with adsorbed organic gas component into hot gas desorbing unit to desorb, separating the desorbed organic gas component with vapor capillary chromatographic column, adsorbing the organic gas component with the organic gas sensing film in the detecting head of one pair of HF delay line ASW sensors to detect the organic gas content, and performing image processing and nerve network mode distinction on 11 kinds of detected lung cancer labeling organic components to diagnose lung cancer patient. The technology of the present invention may be also used for detecting volatile organic matters in other various fields.

Description

technical field [0001] The invention relates to a breath detection method and equipment for diagnosing early lung cancer. Background technique [0002] It is estimated that there are about 600,000 new lung cancer patients every year in the world. Lung cancer is currently one of the most common malignant tumors in the world, and the incidence rate has a tendency to increase significantly in most countries. The five-year survival rate of lung cancer is 14%. If it can be diagnosed and treated at an early stage, the five-year survival rate is 48%. Therefore, it is of great practical significance to design a breath detection instrument that can non-invasively detect early lung cancer patients. . At present, clinically, common diagnostic methods for lung cancer include: X-ray examination, computerized tomography (CT), magnetic resonance tomography (MRI), sputum exfoliated cell examination, fiberoptic bronchoscopy, percutaneous lung biopsy, etc. The equipment of these methods is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08
Inventor 王平陈星曹明富余皓
Owner ZHEJIANG UNIV
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