Unlock instant, AI-driven research and patent intelligence for your innovation.

Micro endoscope with high fluorescence collection rate

A collection rate, endoscope technology, applied in the field of miniature endoscopes, can solve the problems of limited fluorescence collection efficiency and increased volume of the miniature imaging probe, and achieve the effect of improving the fluorescence collection rate

Pending Publication Date: 2020-09-29
苏州溢博伦光电仪器有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention intends to provide a miniature endoscope with a high fluorescence collection rate, which can improve the fluorescence collection rate of the endoscope without changing the size of the existing endoscope, and solve the problem of miniature imaging caused by adding an optical path in the prior art. The problem of increased probe volume and limited fluorescence collection efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Micro endoscope with high fluorescence collection rate
  • Micro endoscope with high fluorescence collection rate
  • Micro endoscope with high fluorescence collection rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 is basically as follows:

[0024] A miniature endoscope with high fluorescence collection efficiency, such as figure 1 As shown, it includes a miniature imaging probe 5. The miniature imaging probe 5 includes a housing and an objective lens 1. The upper end of the housing is connected to a laser fiber for incident excitation light. The casing is provided with a through hole corresponding to the position of the objective lens 1, and a photodetector 2 is fixedly connected in the through hole, and a hole matching the objective lens 1 is provided at the center of the photodetector 2, and the lower end of the objective lens 1 passes through the hole on the photodetector 2 and It is flush with the lower surface of the photodetector 2, and at the same time, the objective lens 1 is fixed with the photodetector 2 through the hole, and the fixing method can adopt an interference fit. Such as figure 2 , The photodetector 2 includes a protection element 2.1, a filte...

Embodiment 2

[0034] The difference from Embodiment 1 is that, as Figure 4 As shown, the photosensitive unit 2.3 of the photodetector 2 is composed of a plurality of ordinary size avalanche diodes (Avalanche Photo Diode, LAAPD) forming an annular array, and the central hole 11 or transparent material is used for the excitation light passing through the microscope objective lens 1, Multiple avalanche diodes of common size are used to receive fluorescent photons that cannot be received by the microscope objective lens 1 . Compared with the first embodiment, the avalanche diodes in this embodiment are easier to obtain and less difficult to process.

Embodiment 3

[0036] The difference from Embodiment 1 is that, as Figure 5As shown, the photosensitive unit 2.3 of the photodetector 2 is composed of a two-dimensional pixel photosensor to form an annular array, such as a CCD (photocoupler device) device, a CMOS (metal semiconductor oxide) device, an FPA (focal plane array) device, a PMT ( Photomultiplier tube) devices, single photon counting devices or hybrid devices based on any of the above multiple photoelectric conversion principles, such as Hamamatsu's hybrid photodetector (HPD), the central hole 11 or transparent material is used to pass through the microscope objective lens 1 The excitation light of the two-dimensional pixel photosensor ring array is used to receive the fluorescent photons that cannot be received by the microscope objective lens 1 .

[0037] The surface of the protective element 2.1 opposite to the photosensitive unit 2.3 can use a microlens array, and the microlens can focus the fluorescence onto each pixel of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
dielectric strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of medical diagnosis imaging equipment, and in particular relates to a micro endoscope with high fluorescence collection rate. The device comprises a miniature imaging probe; the miniature imaging probe comprises an objective lens; the miniature imaging probe is fixedly connected with a photoelectric detector; a hole matching the objective lens is formed in the photoelectric detector; the photoelectric detector comprises a protection element, an optical filter, a photoelectric sensitive unit and a drive circuit; the output end of the drive circuit is connected with an external amplification circuit and a computer; and the surface of the protection element is plated with an anti-reflection optical coating. According to the scheme, scattered fluorescence photons which cannot be collected by the objective lens are collected through the photoelectric detector; the fluorescence collection rate of the endoscope is improved on the premise that thesize of an existing endoscope is not changed; and the problems that in the prior art, a light path is additionally arranged, so that the size of the miniature imaging probe is increased, and fluorescence collection efficiency is limited are solved.

Description

technical field [0001] The invention relates to the technical field of medical diagnostic imaging equipment, in particular to a miniature endoscope with high fluorescence collection rate. Background technique [0002] With the development of science and technology, medical endoscopes have been widely used in the medical field. It is one of the important tools for humans to peep and treat internal organs. In the course of more than 200 years of development, the structure of the endoscope has undergone four major improvements, from the original rigid tube endoscope, half-curved endoscope to fiber endoscope, and to today's electronic endoscope, Image quality has also taken a qualitative leap. Today, using LED lighting, endoscopes can obtain color photos or color TV images. At the same time, the images are no longer ordinary images of tissues and organs, but microscopic images observed under a microscope, and small lesions are clearly distinguishable. According to the existing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B21/02G02B21/00
CPCG02B21/02G02B21/00
Inventor 不公告发明人
Owner 苏州溢博伦光电仪器有限公司