Hollow needle for an ophthalmic surgical instrument

Details Hollow needle for an ophthalmic surgical instrument Hollow needle for an ophthalmic surgical instrument

1998-04-07

2000-06-13

Buiz, Michael

Surgery

Instruments

Means for removing, inserting or aiding in the removal or...

606169, 604 22, A61F 900

Patent

active

060743964

ABSTRACT:
A hollow needle for use as an ultrasonic probe for crushing lenses during ophthalmic surgery. The needle has a suction channel extending toward the distal end into a radially expanding segment. The segment having a plurality of coaxial bores having stepped diameters forming ring shoulders. The bores extend from the distal end into the hollow needle. A plurality of tetrahedrally-shaped cuts are arranged around the circumference of at least one of the ring shoulders or the distal end of the needle. The cuts substantially enlarge the reflecting surface area for the ultrasonic waves and thereby permit intensive admission of ultrasound to the operative tissue. The ring shoulders may be additionally or alternatively be undercut for obtaining additional reflecting surfaces.

REFERENCES:
patent: 4816018 (1989-03-01), Parisi
patent: 5451229 (1995-09-01), Geuder et al.
patent: 5464389 (1995-11-01), Stahl

Affiliated with

Also associated with

Rating

Hollow needle for an ophthalmic surgical 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 Hollow needle for an ophthalmic surgical instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hollow needle for an ophthalmic surgical instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2064896