Dosimetry probe

Details Dosimetry probe Dosimetry probe

1999-04-20

2000-10-24

Paik, Sam

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

607 88, 606 16, 385123, 356300, A61B 600, A61B 1736, A61N 2100, G02B 602, G01J 300

Patent

active

061380466

ABSTRACT:
A dosimetry probe for monitoring light irradiation dosages and for providing irradiance measurements to monitor the application of light during a phototherapy procedure. The dosimetry probe includes a light delivery optical fiber operable to transmit optical radiation to target tissue and a plurality of dosimetry optical fibers substantially coextensive with the light delivery optical fiber, the distal ends of each of the dosimetry optical fibers arranged at a different axial distance from the light delivery optical fiber to provide irradiance measurements at a number of different axial distances. The dosimetry probe may include a safety feedback optical fiber to monitor the intensity of the treatment light independent of the influence of the optical properties of the target tissue. The dosimetry probe may also include a source dosimetry optical fiber for carrying a modulated dosimetry light signal, which can be selectively detected by means of frequency lock-in technology.

REFERENCES:
patent: 4816670 (1989-03-01), Kitamura et al.
patent: 5199431 (1993-04-01), Kittrell et al.
patent: 5275160 (1994-01-01), Lilge et al.
patent: 5349954 (1994-09-01), Tiemann et al.
patent: 5481113 (1996-01-01), Dou et al.
patent: 5483958 (1996-01-01), Merberg et al.
patent: 5492118 (1996-02-01), Gratton et al.
patent: 5529065 (1996-06-01), Tsuchiya
patent: 5533508 (1996-07-01), Doiron
patent: 5582169 (1996-12-01), Oda et al.
patent: 5652810 (1997-07-01), Tipton et al.
patent: 5693043 (1997-12-01), Kittrell et al.
patent: 5728092 (1998-03-01), Doiron et al.
patent: 5769791 (1998-06-01), Benaron et al.
patent: 5807261 (1998-09-01), Benaron et al.
patent: 5825488 (1998-10-01), Kohl et al.
patent: 5836883 (1998-11-01), Tsuchiya et al.
patent: 5911017 (1999-06-01), Wach et al.
patent: 5925034 (1999-07-01), Buckley et al.
Pantelides, M.L. et al., "Photodynamic Therapy for Localised Prostatic Cancer: Light Penetration in the Human Prostate Gland," The Journal of Urology, vol. 143, Feb. 1990, pp. 398-401.
Whitehurt, C. et al., "Optimization of Multifiber Light Delivery for the Photodynamic Therapy of Localised Prostate Cancer," Photochemistry and Photobiology, vol 58, 1993, pp. 589-593.
Bays, Roland et al., "Light Dosimetry for Photodynamic Therapy in the Esophagus," Lasers in Surgery and Medicine, 1997, pp. 290-303.
Qun Chen, "Changes in In Vivo Optical Properties and Light Distributions in Normal Canine Prostate During Photodynamic Therapy," Radiation Research, vol. 147, 1997, pp. 86-91.
Lee, L.K. et al., "In situ Comparison of 665 nm and 633 nm Wavelength Light Penetration in the Human Prostate Gland," Photochemistry and Photobiology, 1995, vol. 62, No. 5, pp. 882-886.

Affiliated with

Also associated with

Rating

Dosimetry probe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dosimetry probe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dosimetry probe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1974522