Surgical instruments and methods for performing tonsillectomy, adenoidectomy, and other surgical procedures

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United States of America Patent

PATENT NO 9918779
SERIAL NO

14719422

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A surgical instrument includes a housing, a shaft extending therefrom, an end effector assembly supported by the shaft, a movable handle, and a drive assembly. The drive assembly includes a translatable drive member for actuating the end effector assembly, and a torsion spring including first and second legs. The first leg is configured to translate through the housing in response to movement of the movable handle relative to the housing. The second leg is configured to translate through the housing in cooperation with the first leg to move the drive member longitudinally when a force acting on the drive member is less than a threshold force, and to remain in fixed position, thereby tensioning the torsion spring and retaining the drive member in fixed position when the force acting on the drive member is equal to or exceeds the threshold force.

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Patent Owner(s)

  • COVIDIEN LP

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Allen,, IV James D Broomfield, US 182 11357
Krastins, Craig V Arvada, US 41 86
Olson, Jessica E C Frederick, US 43 2334
Weihe, Jason G Longmont, US 39 202

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