Tissue structure identification in advance of instrument

Details Tissue structure identification in advance of instrument Tissue structure identification in advance of instrument

2002-04-11

2011-10-25

Cattungal, Sanjay (Department: 3768)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S160000, C600S129000

Reexamination Certificate

active

08046057

ABSTRACT:
A method and apparatus for identifying tissue structures in advance of a mechanical medical instrument during a medical procedure. A mechanical tissue penetrating medical instrument (22) has a distal end for penetrating tissue in a penetrating direction. An optical wavefront analysis system (32-50) provides light to illuminate tissue ahead of the medical instrument and receives light returned by tissue ahead of the medical instrument. An optical fiber (30) is coupled at a proximal end to the wavefront analysis system and attached at a distal end to the medical instrument proximate the distal end of the medical instrument. The distal end of the fiber has an illumination pattern directed substantially in the penetrating direction for illuminating the tissue ahead of the medical instrument and receiving light returned therefrom. The wavefront analysis system provides information about the distance from the distal end of the medical instrument to tissue features ahead of the medical instrument.

REFERENCES:
patent: 4566438 (1986-01-01), Liese et al.
patent: 5280788 (1994-01-01), Janes et al.
patent: 5321501 (1994-06-01), Swanson et al.
patent: 5459570 (1995-10-01), Swanson et al.
patent: 5460182 (1995-10-01), Goodman et al.
patent: 5752518 (1998-05-01), McGee et al.
patent: 6004314 (1999-12-01), Wei et al.
patent: 6007481 (1999-12-01), Riek et al.
patent: 6134003 (2000-10-01), Tearney et al.
patent: 6157856 (2000-12-01), Sanghera et al.
patent: 6175669 (2001-01-01), Colston et al.
patent: 6178346 (2001-01-01), Amundsen et al.
patent: 6193676 (2001-02-01), Winston et al.
patent: 6196226 (2001-03-01), Hochman et al.
patent: 6228076 (2001-05-01), Winston et al.
patent: 6441577 (2002-08-01), Blumenkranz et al.
patent: 6445939 (2002-09-01), Swanson et al.
patent: 6485413 (2002-11-01), Boppart et al.
patent: 6564087 (2003-05-01), Pitris et al.
patent: 2 191 855 (1987-12-01), None
Guiju Song et al., “Simultaneous measurements of the thickness and refractive index of microstructures in obscure specimen by optical coherence tomography,” 111 Optik No. 12 (2000), pp. 541-543.
Harold T. Yura, “Closed-form solution for the Wigner phase-space distribution function for diffuse reflection and small-angle scattering in a random medium,” 17 J. Opt. Soc. Am. a, vol. 17, No. 12, Dec. 2000, pp. 2464-2474.
U.S. Appl. No. 60/283,068, filed Apr. 11, 2001, Clarke, Dana S.

Affiliated with

Also associated with

Rating

Tissue structure identification in advance of instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tissue structure identification in advance of instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tissue structure identification in advance of instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4281570