Device and method for detecting harmonic waves of capsule endoscope
A technology of capsule endoscopy and harmonic detection, which is applied in the fields of in vivo radio detectors, diagnostic recording/measurement, medical science, etc., can solve the problem that users cannot judge whether it has been excreted from the body, and achieve fast detection speed and application Strong and easy to operate
Active Publication Date: 2013-06-12
SHENZHEN JIFU MEDICAL TECH CO LTD
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Problems solved by technology
After a period of time, the user sometimes cannot judge whether it has been excreted from the body, and needs to use an instrument to detect whether it stays in the body
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[0039] refer to Figure 1-Figure 4 As shown, the present invention provides a harmonic detection device for a capsule endoscope, which is used to detect whether the capsule endoscope exists in the body, because the capsule endoscope in the body will generate sharp fundamental waves in a magnetized environment. Voltage pulses generate harmonics, and by measuring the presence of harmonics or the ratio of each sub-harmonic, it is determined whether there is a capsule endoscope in the body to be examined, and the detection of the capsule endoscope in vivo is realized.
[0040] Wherein, the harmonic detection device is provided with a signal transmitting end and a signal receiving end, wherein the signal transmitting circuit includes a crystal 1, a logical frequency dividing circuit 2 and a fundamental wave transmitting circuit 3 electrically connected in sequence, and the logical frequency dividing The circuit 2 is connected with the crystal 1 for generating the fundamental wave, ...
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The invention provides a device and a method for detecting harmonic waves of a capsule endoscope. The device and the method are used for detecting whether the capsule endoscope exists in a body or not. The device comprises a logic frequency dividing circuit, a fundamental wave transmitting circuit, a receiving detecting circuit and a microprocessor, wherein the logic frequency dividing circuit is used for producing fundamental waves; the fundamental wave transmitting circuit is electrically connected with the logic frequency dividing circuit and used for transmitting a fundamental frequency; the receiving detecting circuit is used for receiving electric waves under a certain frequency; and the microprocessor receives the electric wave transmitted by the receiving detecting circuit, and judges whether the ratio of different secondary harmonic waves in the electric wave reaches the set threshold value, and if the ratio reaches the set threshold value, whether the capsule endoscope exists in to-be-detected body or not can be judged. By using the characteristic of the proportional stepwise attenuation of the harmonic waves, a certain proportional relation exists between the secondary harmonic waves and the fundamental waves, by comparing the secondary harmonic waves, the corresponding scale value is obtained to serve as the judged foundation, and as long as the abdomen of the to-be-detected body is scanned, whether the capsule endoscope is detained in the body immediately or not can be known. The device and the method have the advantages that the operation is convenient, the detection speed is high, the applicability is stronger, and the accuracy is high.
Description
technical field [0001] The invention relates to a detection device and a detection method of a capsule endoscope, in particular to a detection device and a detection method for detecting a capsule endoscope by using harmonic waves. Background technique [0002] Capsule endoscope is a new scientific and technological product of medical development. It is widely used in the clinical diagnosis of various medical diseases. It adopts painless and non-invasive monitoring and diagnosis. After oral administration, it enters the human stomach or intestinal tract, and passes through its lens components. Close-up photographs of the internal stomach or intestinal wall conditions for clinical diagnosis and relief of patients' clinical pain. [0003] However, after the capsule endoscope enters the body, it will image the stomach or intestinal tract of the human body and transmit it to an external image monitoring device. After the capsule endoscopy work is completed, it needs to be excre...
Claims
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IPC IPC(8): A61B5/06
CPCA61B5/06A61B5/061A61B5/073A61B5/7235
Inventor 李奕孙平邓文军
Owner SHENZHEN JIFU MEDICAL TECH CO LTD