Micro optical probe of endoscope

Abstract

The invention discloses a micro optical probe of endoscope, which comprises an MEMS microscope, a circuit board, a self focusing optical assembly, a locating bottom plate and a housing; the micro optical probe of endoscope is characterized in that: the endoscope probe is designed by using integrated symmetrical structure, the MEMS microscope; the circuit board and the self focusing optical assembly are assembled on the locating bottom plate according to design requirements of optomechatronics to form a probe body, and a probe housing is formed by injection molding or casting and is tightly connected with the probe body. The housing opposite to the microscope surface of the MEMS microscope can be formed with an optical window, or the housing material is transparent to the used light. The probe housing is formed at a time by injection molding / casting technology, and this structure can protect the MEMS microscope from being influenced with environment factor and can bear a certain vibration impact and random shock; the sealed probe can work in various liquid environments; and large-batch and low-cost processing production of probes can be realized, and the aim of disposable probes will be fulfilled.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, in particular to an endoscope micro optical probe. Background technique [0002] Combining microelectromechanical systems (MEMS) scanning micromirrors with Optical Coherence Tomography (OCT) technology to develop endoscopic imaging systems is the main development project of the patent applicant. The first MEMS-OCT endoscopic probe in the world was developed by one of the members of the R&D team of the applicant unit in 2001. The endoscope uses a one-dimensional MEMS scanning micromirror driven by electrothermal technology, and successfully demonstrated the function of living pig bladder. Two-dimensional cross-sectional OCT image. The probe has obtained the US patent (patent number: US7,450244 Full circumferential scanning OCT intravascular imaging probe based on canning MEMS mirror), figure 1 It is a three-dimensional design drawing of the probe, which includes a probe base 14, a Gree...

AI Technical Summary

Problems solved by technology

[0003] from figure 1 It can be seen that the asymmetric structure of the probe base brings great difficulties to the processing, which is not conducive to the mass production of the probe

In order to realize the popularization of disposable MEMS-OCT probes, the design scheme shown in Figure 1 will be limited to the research and development stage, and the use of wire electric discharge machining will make the processing cycle longer and the cost is high, which affects the market development of disposable probes

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