Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Wide-field and long-working-distance continuous zooming operating microscope optical system

An operating microscope and optical system technology, which is applied to the field of continuously variable magnification operating microscope optical systems with a large field of view working distance, can solve the problems of short working distance and small field of view of the microscope, achieve long working distance, meet observation needs, and facilitate observation. and the effect of the operation

Active Publication Date: 2017-03-08
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to explore a new type of large field of view and long working distance continuous variable magnification surgical microscope optical system, so as to solve the problem that the existing surgical microscope has a small field of view and a short working distance, which cannot meet the needs of finding trauma in neurosurgery or free skin flap transplantation. In order to solve the technical problems of the site, a new type of microscopic optical system with large field of view and long working distance is proposed

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
  • Wide-field and long-working-distance continuous zooming operating microscope optical system
  • Wide-field and long-working-distance continuous zooming operating microscope optical system
  • Wide-field and long-working-distance continuous zooming operating microscope optical system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0020] Such as figure 1 As shown, the optical system of the large field of view and long working distance continuous variable magnification surgical microscope includes: a zoom objective lens system (1) composed of a doublet lens 1 with a positive refractive power and a doublet lens 2 with a negative refractive power, and an aperture stop (2), the focal power is an afocal composed of a doublet lens 3 with a positive power, a doublet lens 4 with a negative power, a single lens 5 with a negative power and a doublet lens 6 with a negative power Zoom system (3), image transfer system (4) composed of Abbe prism 7, doublet lens 8 with negative power, single lens 9 with positive power and doublet lens 10 with negative power The second objective lens system (5); the refractive power is a negative doublet lens 11, the refractive power is a positive single lens 12, the r...

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of optical instruments, and especially relates to a wide-field and long-working-distance continuous zooming operating microscope optical system. The system comprises a variable-focus objective system (1), an aperture diaphragm (2), an unfocused zooming system (3), an image rotation system (4), a second objective system (5), and an eyepiece system (6). Optical aberration needing correction of all parts of the system is distributed reasonably, two aspheric surfaces are introduced to correct advanced optical aberration caused by wide-field imaging, and thus, good wide-field microscopic imaging is achieved. As the components between and inside the variable-focus objective system and the unfocused zooming system do complex motion according to different rules, the magnifying power changes continuously, and the position of the image plane is fixed. Long working distance is realized through 'positive and negative' focal power distribution. The system of the invention meets the demand of clinical application, has the advantages of wide field, variable focus, and long working distance, and is particularly applicable to the field of neurosurgery operation or free flap transplant operation demanding a wide field.

Description

technical field [0001] The invention belongs to the technical field of optical instruments, and in particular relates to an optical system of a large field of view working distance continuous variable magnification surgical microscope, which is especially suitable for the fields of neurosurgery or free skin flap transplantation requiring a large field of view and long working distance. . Background technique [0002] When performing neurosurgery or free flap transplantation, it is often first necessary to find the injured part and observe the injured part, such as the degree of muscle decay and the degree of damage to the blood vessel port. Generally, the area of ​​the injured part in surgery is smaller Large (more than 100mm); during the operation, tiny blood vessels and nerves need to be dissected, connected, and sutured. Because these tissues and blood vessels are very small, their shape cannot be accurately observed with the naked eye, and they need to be enlarged by mic...

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): G02B21/24G02B15/16G02B27/00
CPCG02B15/142G02B21/241G02B27/0025
Inventor 常军朱懿陈蔚霖刘鑫张泽霞余鸿昊牛亚军吕凤先
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com