A precisely positioned oct catheter withdrawal device

Abstract

Disclosed is an OCT catheter withdrawal apparatus capable of achieving precise positioning. The apparatus comprises a bronchofiberscope body (1), a clamping device, a lead screw step motor (6) and a controller, wherein the lead screw step motor (6) is electrically connected to the controller; the lead screw step motor (6) is disposed on the bronchofiberscope body (1), and a lead screw nut of the lead screw step motor (6) is in transmission connection with the clamping device; and an OCT catheter (5) successively runs through the clamping device and the bronchofiberscope body (1). The OCT catheter withdrawal apparatus is based on the OCT principle and combines precise positioning technology and OCT catheter withdrawal technology so as to realize a precise medical diagnosis for a lumen of a human body.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a precisely positioned OCT catheter withdrawal device. Background technique [0002] Optical coherence tomography (Optical coherence Tomography, OCT) is a high-resolution imaging technology based on the principle of low-coherence light interference, which can detect the backscattered wave echo time of incident near-infrared light at different depths of biological tissue The delay and echo intensity signals can be scanned to obtain the two-dimensional or three-dimensional high-resolution microstructure of the sample, so as to obtain the non-destructive tomographic image of the tested sample in vivo. [0003] At present, the research on optical interference tomography at home and abroad mainly focuses on OCT technology and equipment in ophthalmology, human dermatology and cardiovascular fields. On the one hand, the domestic units currently conducting OCT resear...

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Problems solved by technology

On the one hand, the domestic units currently conducting OCT research include Tsinghua University, Zhejiang University, Tianjin University, etc., but most research groups mainly focus on the demonstration and research of the principle of OCT, and have not developed corresponding developments that can actually be used in the human body. OCT equipment; on the other hand, the general OCT system can only be used for imaging in a single location tissue, but the information displayed by a single section is often relatively limited, which is not conducive to medical personnel to accurately determine the type and size of the lesion. It is a module that drives the scanning probe to move along the axial direction, so as to realize imaging of human tissues within a certain range with a certain depth range. Through imaging, information such as the shape of the tissue structure, the location and size of the lesion can be clearly judged, and at the same time, the tissue structure can be obtained. Three-dimensional anatomy of cavity tissue

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