Horn used in an ultrasonic surgical operating instrument
AssigneeSumitomo Bakelite Co., Ltd.
InventorsNaohiko Inoue, Yasuo Noguchi
Life of this patent
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Abstract
A horn used in an ultrasonic surgical operating instrument for crushing and removing organic tissue comprises a horn body vibrated by and ultrasonic vibration source for crushing the organic tissue, a removing passage extending through the horn body, through which the crushed tissue is removed outside, a bulkhead disposed in the removing passage, and at least one through hole formed in the bulkhead. The bulkhead and the hole cooperate with each other to reduce a cross-sectional area of the removing passage.
Claims5
A horn used in an ultrasonic surgical operating instrument for crushing and removing organic tissue, said horn comprising:
- a horn body for crushing said organic tissue which is ultrasonically vibrated;
- passage means extending through said horn body, through which the crushed tissue is removed outside;
- means provided within said passage means for reducing a cross-sectional dimension of said passage means;
- said reducing means comprising a bulkhead disposed in said passage means and aperture means for axially extending through said bulkhead;
- wherein said bulkhead is disposed in a midway portion in said passage means.
Dependencies are inferred from the claim text.