Needle interface boot for ultrasonic surgical instrument

Details Needle interface boot for ultrasonic surgical instrument Needle interface boot for ultrasonic surgical instrument

1989-10-30

1991-08-13

Cohen, Lee S.

Surgery

Truss

Perineal

604 22, A61B 1700

Patent

active

050387561

ABSTRACT:
A needle interface boot for use in an ultrasonic ophthalmic surgical instrument of the type incorporating coaxial irrigation and aspiration functions which comprises a conically-shaped hollow instrument. The boot is made from a compliant silicone or plastic-type material and is positioned within the irrigation channel surrounding the interface or connection between the vibratory transmissive member or resonator and the needle probe to prevent irrigation fluid from contacting the flat projecting surfaces of this interface and, thus, reduces objectionable cavitation and bubble formation within the irrigation fluid to be delivered to the operative site during use of such a surgical instrument.

REFERENCES:
patent: 3805787 (1974-04-01), Banko
patent: 4681561 (1987-07-01), Hood et al.
patent: 4816017 (1989-03-01), Hood et al.
patent: 4816018 (1989-03-01), Parisi
patent: 4867141 (1989-09-01), Nakada et al.
patent: 4886060 (1989-12-01), Wiksell

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