Ultrasonic surgical instrument incorporating fluid management
First Claim
1. An ultrasonic surgical instrument defining a proximal end and a distal end and comprising:
- an asymmetric blade positioned at the distal end of the instrument; and
a lumen having a distal end positioned in an overlapping relationship with the blade.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is an ultrasonic surgical device having a distally/proximally movable fluid management system consisting of single lumen or multiple lumens. The invention provides for the delivery of irrigation fluid or the removal of fluid, debris or vapor from the tissue-effecting portion of the blade while minimizing the loading on the blade. The blades of the surgical device, when excited at a natural blade system frequency, will have modal shapes characterized by longitudinal, transverse and/or torsional motion and will have nodal locations for these motions at positions along the tissue effecting length of the blade. The instrument is designed to allow for the fluid management system to be positioned at one or more motion nodes to facilitate efficient removal of tissue or fluid, which tends to accumulate at such nodes of the ultrasonic surgical blades.
-
Citations
20 Claims
-
1. An ultrasonic surgical instrument defining a proximal end and a distal end and comprising:
-
an asymmetric blade positioned at the distal end of the instrument; and
a lumen having a distal end positioned in an overlapping relationship with the blade. - View Dependent Claims (2, 3, 4, 5, 9, 10, 11, 12, 13, 14, 15)
-
- 7. The ultrasonic surgical instrument of claim 7, wherein the lumen is movable to a position adjacent to the transverse or torsional node.
-
16. An ultrasonic surgical instrument defining a proximal end and a distal end and comprising:
-
A blade symmetric in at least one plane positioned at the distal end of the instrument; and
at least one lumen positioned in an overlapping relationship with the blade. - View Dependent Claims (17, 18, 19, 20)
-
Specification