Surgery: kinesitherapy – Kinesitherapy – Ultrasonic
Reexamination Certificate
2005-12-20
2005-12-20
Casler, Brian L. (Department: 3737)
Surgery: kinesitherapy
Kinesitherapy
Ultrasonic
C600S461000, C606S169000, C604S022000
Reexamination Certificate
active
06976969
ABSTRACT:
Disclosed is an ultrasonic surgical instrument that combines end-effector geometry to best affect the multiple functions of a shears-type configuration. The shape of the blade is characterized by a radiused cut offset by some distance to form a curved geometry. The cut creates a curved surface with multiple asymmetries causing multiple imbalances within the blade. Imbalance due to the curve of the instrument is corrected by a non-functional asymmetry proximal to the functional asymmetry. Imbalance due to the asymmetric cross-section of the blade is corrected by the appropriate selection of the volume and location of material removed from a functional asymmetry. The shape of the blade in one embodiment of the present invention is characterized by two radiused cuts offset by some distance to form a curved and potentially tapered geometry. These two cuts create curved surfaces including a concave surface and a convex surface. The length of the radiused cuts affects, in part, the acoustic balancing of the transverse motion induced by the curved shape.
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International Standard IEC 61847 Ultrasonic—Surgical systems—“Measurement and declaration of the basic output characteristics” © IEC 1998 Droits de reproduction reserves.
Casler Brian L.
Ethicon Endo-Surgery Inc.
Jung William
LandOfFree
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