光イメージング装置 - University Hospital of Cleveland

Title:

光イメージング装置

Document Type and Number:

Japanese Patent JP4576017

Kind Code:

B2

Abstract:

An Optical Coherence Tomography (OCT) device irradiates a biological tissue with low coherence light, obtains a high resolution tomogram of the inside of the tissue by low-coherent interference with scattered light from the tissue, and is provided with an optical probe which includes an optical fiber having a flexible and thin insertion part for introducing the low coherent light. When the optical probe is inserted into a blood vessel or a patient's body cavity, the OCT enables the doctor to observe a high resolution tomogram. In a optical probe, generally, a fluctuation of a birefringence occurs depending on a bend of the optical fiber, and this an interference contrast varies depending on the condition of the insertion. The OCT of the present invention is provided with polarization compensation means such as a Faraday rotator on the side of the light emission of the optical probe, so that the OCT can obtain the stabilized interference output regardless of the state of the bend.

Inventors:

Joseph A. I That
Michael Vi. Shibak
Andrew Rollins
Akihiro Horii
Yuji Hirata
Shuhei Iizuka

Application Number:

JP2000028231A

Publication Date:

November 04, 2010

Filing Date:

February 04, 2000

Export Citation:

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