Title:
干渉法による非侵襲性の血中ブドウ糖監視
Document Type and Number:
Japanese Patent JP2005532831
Kind Code:
A
Abstract:
The glucose concentration in the bloodstream is directly correlated to the concentration of glucose in the aqueous humor. Furthermore, variation in the glucose concentration in the aqueous humor will cause like variations in its index of refraction. Thus, by measuring the refractive index of the aqueous humor, the glucose concentration in the blood can be determined. The refractive index of the aqueous humor can be measured by interferometry. In various embodiments of the invention that employ interferometry, two beams may be directed onto the eye and caused to interfere, thereby producing a fringe pattern. The fringe pattern may be analyzed to determine the index of refraction of the aqueous humor in the eye and the glucose concentration therein. The glucose level in the blood can be ascertained from this information.
Inventors:
Corn Sweet, Tom N
Application Number:
JP2003529141A
Publication Date:
November 04, 2005
Filing Date:
September 20, 2002
Export Citation:
Assignee:
Visual Pathways Incorporated
International Classes:
G01N21/45; A61B3/10; A61B3/15; A61B5/00; A61B5/145; A61B5/1455; (IPC1-7): A61B5/145; A61B3/10; G01N21/45
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Yamazaki Kosaku
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Yamazaki Kosaku