Blunt tipped ultrasonic trocar

Details Blunt tipped ultrasonic trocar Blunt tipped ultrasonic trocar

1993-05-12

1995-09-12

Pellegrino, Stephen C.

Surgery

Instruments

Cutting, puncturing or piercing

604 22, A61B 1732, A61B 1770

Patent

active

054493706

ABSTRACT:
A blunt tipped trocar which uses ultrasonic energy in the form of vibrations to assist a user in penetrating tissue. In one embodiment of the invention, a feedback mechanism is provided which senses a variation in load on the trocar tip and adjusts the ultrasonic energy level of the vibrating tip in accordance with the load condition. Another embodiment of the invention provides a trocar with a self-contained ultrasonic generator.

REFERENCES:
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patent: 4931047 (1990-06-01), Broadwin et al.
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patent: 5026387 (1991-06-01), Thomas
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patent: 5123903 (1992-06-01), Quaid et al.
patent: 5160317 (1992-11-01), Costin
patent: 5180363 (1993-01-01), Idemoto et al.
patent: 5190517 (1993-03-01), Zieve et al.

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