Title:
超音波外科器具と共に使用するための機能的な平衡用非対称部分を有するブレード
Document Type and Number:
Japanese Patent JP4549597
Kind Code:
B2
Abstract:
Disclosed is an ultrasonic surgical instrument that combines end-effector geometry to best effect 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.
Inventors:
Mesaree Jeffrey Dee
Application Number:
JP2001527714A
Publication Date:
September 22, 2010
Filing Date:
September 08, 2000
Export Citation:
Assignee:
Ethicon Endo-Surgery,Inc.
International Classes:
A61B17/3201; A61B18/00; A61B17/32; A61B17/28
Domestic Patent References:
| JP11104142A | ||||
| JP8505801A | ||||
| JP1232948A | ||||
| JP62268549A | ||||
| JP11113922A | ||||
| JP4007808U | ||||
| JP9131350A | ||||
| JP62211054A | ||||
| JP2000070279A |
Foreign References:
| US5938633 | ||||
| EP0830845A1 |
Attorney, Agent or Firm:
Konobu Kato