Ultrasonic needles and transducer assemblies formed of non-metal materials or a combination of materials

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10932948
APP PUB NO 20160302966A1
SERIAL NO

14690791

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A phacoemulsification needle includes a hub for connection to an ultrasonic handpiece. An elongated shaft is formed with the hub and extends from the hub. A distal end of the shaft breaks-up tissue when the distal end is caused to be vibrated by the handpiece. At least a distal portion of the shaft is formed of a material that has properties providing advantages compared to a metal needle. Example properties include a substantially lower density, a substantially higher electrical resistivity, a substantially lower thermal conductivity, a substantially lower mechanical lateral stiffness, a substantially higher efficiency of converting electrical energy powering the handpiece into motion of the distal end, a substantially lower acoustical impedance, a substantially higher Poisson's ratio, and a substantially higher mechanical gain.

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Patent Owner(s)

  • BAUSCH & LOMB INCORPORATED

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fitzgerald, Matthew J St. Louis, US 9 54
Goh, Toh Seng Wildwood, US 13 159
McCary, Brian D Clayton, US 13 114
Moradian, Ala St. Louis, US 60 130

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