Low-cost endoscope miniature optical probe
A technology for optical probes and endoscopes, applied in the field of endoscopes, can solve problems such as increased production costs of probes, difficulties in processing probe bases, and increased assembly processes, to improve optical alignment accuracy, facilitate optical path correction, and reduce damage The effect of the probability of
Active Publication Date: 2012-02-08
无锡微文半导体科技有限公司
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Problems solved by technology
[0004] from figure 1 It can be seen that the asymmetric structure of the probe base brings great difficulties to the processing and increases the production cost of the probe; figure 1 It can be seen from the figure that using a plastic sleeve for final sealing will affect the optical quality of the light emitted from the plastic sleeve after being reflected by the MEMS micromirror. Difficult to perform optical alignment
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[0026] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0027] See Figure 2-3 , using stainless steel with an outer diameter of less than 3 mm to process the probe base 1, the optical fiber and the focusing lens to form an optical assembly 4, and then install a flexible PCB circuit board 5 at the bottom, and this assembly is installed into the probe base 1 through the mounting hole 9 In the above, the MEMS micromirror 2 and the flexible PCB 5 expected to be connected are installed on the loading surface 6 and aligned with the installation datum 7, the light beam reflected from the mirror surface is perpendicular to the probe axis, shoots from the probe window, and enters through the MEMS micromirror. Scan horizontally, then enter the optical path calibration, and seal the window 8 with a w...
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The invention provides a low-cost endoscope miniature optical probe, and relates to the field of medical appliance. In order to overcome the problems that in the prior art, the low-cost endoscope miniature optical probe is in an asymmetric structure, difficult to process, high in cost, troublesome to install, and not easy to optically calibrate, the low-cost endoscope miniature optical probe is technically characterized in that the probe base is in a vertically axial symmetrical structure and is manufactured from a stainless steel pipe, an internal liner core column for sealing a pipe hole isarranged at one end of the base, an MEMS (Microelectromechanical System) micro-mirror installing groove is formed on the base, an OCT (optical coherence tomography) optical component is arranged at the other end of the base, the MEMS micro-mirror and the OCT optical component are electrically connected with a flexible circuit board and a lead thereof, and the outside diameter of the probe base isless than 3 mm. The low-cost endoscope miniature optical probe has the beneficial effects of low production cost, high optical alignment precision, assembly easiness, low breakage rate and the like.
Description
technical field [0001] The invention relates to the field of medical instruments, especially endoscopes. [0002] Background technique [0003] 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 world's first MEMS-OCT endoscopic probe was developed by one of the applicant's R&D team members in 2001. The endoscope uses a one-dimensional MEMS scanning mirror driven by electrothermal, and successfully demonstrated the two-dimensional imaging of the living pig bladder. Two-dimensional cross-sectional OCT images. The probe has obtained the US patent (patent number: US7,450244 Full circumferential scanning OCT intravascular imaging probe based on scanning MEMS mirror), figure 1 It is a three-dimensional design drawing of the probe, which includes a probe base, a Green lens, a transmission fiber, a flexible circu...
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Login to View More IPC IPC(8): A61B1/00G02B26/08
Inventor 傅霖来谢会开
Owner 无锡微文半导体科技有限公司