Liquefaction handpiece

Details Liquefaction handpiece Liquefaction handpiece

1999-08-16

2000-08-29

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 22, 606107, A61M 3100

Patent

active

061101621

ABSTRACT:
A surgical handpiece having at least two lumens mounted to a body. At least one lumen is used for aspiration and at least one other lumen is used to inject heated surgical fluid for liquefying a cataractous lens. A portion of the second lumen is enlarged to form a pumping chamber. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the second lumen. The pumping chamber may use any type of heater, such as a resistive heater or an induction heater. The handpiece may also contain other lumens for injecting relatively cool surgical fluid.

REFERENCES:
patent: 1493450 (1924-05-01), Richardson
patent: 3589363 (1971-06-01), Banko et al.
patent: 3818913 (1974-06-01), Wallach
patent: 3930505 (1976-01-01), Wallach
patent: 4024866 (1977-05-01), Wallach
patent: 4223676 (1980-09-01), Wuchinich
patent: 4246902 (1981-01-01), Martinez
patent: 4249899 (1981-02-01), Davis
patent: 4265618 (1981-05-01), Herskovitz et al.
patent: 4301802 (1981-11-01), Poler
patent: 4517977 (1985-05-01), Frost
patent: 4570632 (1986-02-01), Woods
patent: 4577629 (1986-03-01), Martinez
patent: 4589415 (1986-05-01), Haaga
patent: 4609368 (1986-09-01), Dotson, Jr.
patent: 4662869 (1987-05-01), Wright
patent: 4674502 (1987-06-01), Imonti
patent: 4696298 (1987-09-01), Higgins et al.
patent: 4911161 (1990-03-01), Schechter
patent: 4922902 (1990-05-01), Wuchinich et al.
patent: 5226910 (1993-07-01), Kajiyama et al.
patent: 5250065 (1993-10-01), Clement et al.
patent: 5261883 (1993-11-01), Hood et al.
patent: 5275607 (1994-01-01), Lo et al.
patent: 5285795 (1994-02-01), Ryan et al.
patent: 5322504 (1994-06-01), Doherty et al.
patent: 5423330 (1995-06-01), Lee
patent: 5554155 (1996-09-01), Awh et al.
patent: 5562692 (1996-10-01), Bair
patent: 5591184 (1997-01-01), McDonnell
patent: 5616120 (1997-04-01), Andrew
patent: 5624392 (1997-04-01), Saab
patent: 5624393 (1997-04-01), Diamond
patent: 5653692 (1997-08-01), Masterson et al.
patent: 5674226 (1997-10-01), Doherty et al.
patent: 5766194 (1998-06-01), Smith
patent: 5865790 (1999-02-01), Bair
patent: 5879347 (1999-03-01), Saadat
patent: 5891095 (1999-04-01), Eggers et al.
patent: 5947988 (1999-09-01), Smith

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1244339