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Endoscopic optical tomographic imaging scanning probe device based on micro motor

A technology of optical tomography and micro-motor, which is applied in radiation beam guiding devices, surgery, etc., can solve problems such as unsatisfactory, and achieve the effect of easy use and wide application prospects

Inactive Publication Date: 2005-03-02
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The endoscopic probes of the above methods have greatly expanded the application range of OCT imaging, but each has its own advantages and disadvantages, and still cannot meet the higher requirements of practical applications.

Method used

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  • Endoscopic optical tomographic imaging scanning probe device based on micro motor
  • Endoscopic optical tomographic imaging scanning probe device based on micro motor
  • Endoscopic optical tomographic imaging scanning probe device based on micro motor

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Embodiment Construction

[0017] The structure of the embodiment of the OCT imaging scanning probe device based on the micro motor designed by the present invention is as follows: Figure 4 As shown, the device mainly consists of three parts: 1. Light guiding device, including single-mode optical fiber 41 and gradient index lens 42. The light guiding device guides light from the optical fiber and focuses it onto the scanning device. 2. scanning device, comprises micromotor (the present embodiment adopts microultrasonic motor) 43, and the rectangular prism (also can adopt plane or curved mirror) 46 that is fixed on the motor rotor 43, prism rotation, promptly reaches the purpose of scanning ( 47 in the figure is the light emitting direction). 3. Fixing device 45 and transparent jacket 44, the fixing device of the present embodiment adopts rigidity (such as metal) jacket and can guarantee the coaxiality of gradient index lens and motor, makes the focused light spot during scanning form a regular circle, ...

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Abstract

The present invention belongs to the field of medical instrument structure design technology. The endoscopic optical tomographic imaging scanning probe device based on micro motor includes transparent jacket, light guide unit and transverse scanning unit, and features that it has also fixing unit for fixing separately the light guide unit and the transverse scanning unit in the same shaft. The transverse scanning unit consists of micro motor and connected reflector, and the reflector is driven by the motor to reflect light to the sample for scanning. The present invention utilizes micro motor to provide OCT transverse scanning so as to obtain the high resolution cross section image of human internal organ. The probe unit has the features of small size, simple operation, etc. and utilizes the high resolution and fast imaging of OCT imaging, so that it has excellent application foreground in medicine field.

Description

technical field [0001] The invention belongs to the technical field of structural design of medical instruments, in particular to the structural design of scanning probes of optical tomography microscopic imaging technology. Background technique [0002] Optical coherence tomography (OCT) is a new medical imaging technology developed since the 1990s, which can perform high-resolution, non-destructive tomographic imaging of human tissues. The development of OCT endoscopic probes makes this imaging technology applicable to imaging inside the human body, such as esophagus, blood vessels, etc., which expands the application range of OCT. [0003] The main function of the OCT endoscopic probe is to introduce the laser light into the human body, focus the incident on the part that needs to be imaged, and then collect the back reflected or back scattered light for imaging. At the same time, the endoscopic probe also needs to provide the horizontal scanning function of OCT in order...

Claims

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Application Information

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IPC IPC(8): A61B1/00A61B6/08
Inventor 薛平吴继刚
Owner TSINGHUA UNIV
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