Ultrasonic needle with sleeve that includes a baffle

Details Ultrasonic needle with sleeve that includes a baffle Ultrasonic needle with sleeve that includes a baffle

1991-07-29

1992-09-29

Pellgrino, Stephen C.

Surgery

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

With means for cutting, scarifying, or vibrating tissue

128 24AA, 606107, 606169, 604902, 604 19, A61B 1700, A61M 100

Patent

active

051510847

ABSTRACT:
A baffle with holes formed therein is mounted in a sleeve which surrounds the needle of an ultrasonic handpiece so as to reduce bubbles in the irrigation fluid supplied to the handpiece and thus improve the visibility at the operating site. As irrigation fluid is supplied to the handpiece, it contacts the ultrasonic motor which tends to cause bubbles and by providing the baffle with openings, the bubbles are restricted from passing the baffle and obstructing the vision of the surgeon using the ultrasonic handpiece.

REFERENCES:
patent: 3526219 (1970-09-01), Balamuth
patent: 3805787 (1974-04-01), Banko
patent: 4320761 (1982-03-01), Haddad
patent: 4681561 (1987-07-01), Hood et al.
patent: 4741731 (1988-05-01), Starck et al.
patent: 4816017 (1989-03-01), Hood et al.
patent: 4816018 (1989-03-01), Parisi
patent: 5038756 (1991-08-01), Kepley

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