Development of small-diameter endoscope capable of high-resolution visualization and laser therapy through a shared optical aperture

Minimally invasive surgical (MIS) techniques have increased the efficacy and safety of many previously open surgical procedures, while reducing cost. An enabling tool for MIS procedures is the endoscope, which frequently hosts technologies to illuminate, visualize, and apply a phototherapy laser to a surgical scene. Unfortunately, some candidate MIS procedures are not presently possible due to the insufficiently small diameter of currently available endoscopes, which is the result of illumination, visualization, and phototherapy functions each requiring a unique, adjacent, optical aperture. Furthermore, some MIS procedures in common practice could realize better outcomes with smaller diameter endoscopes. Small-diameter visual sensors have been realized with Spectrally Encoded Endoscopy (SEE), which uses an optical chain with a diffraction grating at the distal end to spectrally encode the (broadband) optical illumination signal in a line across the surgical scene.

Name thesis:degree_name

Master

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2019

Author dc:creator

• Johnson, Matthew Roy,S.M.Massachusetts Institute of Technology.

Advisor dc:contributor.advisor

• Martha L. Gray and Gary J. Tearney.

• Electrical Engineering and Computer Science.

Statement dc:rights

• MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/122553

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/122553