Ultrasonic cutting blade with cooling liquid conduction

• US 9,387,005 B2
• Filed: 06/28/2013
• Issued: 07/12/2016
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: Misonix OPCO LLC
• Original Assignee: Misonix Incorporated (Smith & Nephew PLC)
• Inventors: Voic, Dan
• Primary Examiner(s): SEVILLA, CHRISTIAN ANTHONY
• Application Number:
  US13/931,003
• Publication Number:
  US 20150005771A1
• Time in Patent Office: 1,110 Days
• Field of Search: D24/144, D24/146
• US Class Current: 1/1
• CPC Class Codes: A61B 17/14 Surgical saws A61B17/1637 takes precedence; tooth saws A61C3/12 ; Accessories therefor
• CPC Class Codes: A61B 17/142 with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
• CPC Class Codes: A61B 17/320068 using mechanical vibrations, e.g. ultrasonic A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745
• CPC Class Codes: A61B 2017/320074 blade
• CPC Class Codes: A61B 2217/007 with irrigation system

Abstract

An ultrasonic surgical tool comprises a substantially planar blade body having a pair of opposed lateral surfaces and a cutting edge. A shank integral on a distal side with the blade body is provided at a proximal side with a connector for operatively linking the blade to a source of ultrasonic mechanical vibrations. The blade body is provided in at least one of the lateral surfaces with a shallow recess which is nearly coextensive with that lateral surface. The blade body has a raised rim surrounding and defining the recess, the rim being narrow on the three sides between the recess and the cutting edge.

Claims

1. An ultrasonic surgical tool comprising:

a substantially planar blade body having a pair of opposed lateral surfaces; and

a

shank integral on a distal side with said blade body and provided at a proximal side with a connector for operatively linking the blade to a source of ultrasonic mechanical vibrations,

said blade body being provided in at least one of said lateral surfaces with a shallow recess nearly coextensive with said one of said lateral surfaces,

said at least one of said lateral surfaces forming a raised rim surrounding and defining said recess,

said rim being narrow on a distal side of said blade body and along two lateral sides of said blade body,

said blade body being provided in said recess with a through hole enabling liquid flow from said recess to an opposing side of said blade body,

said shank being provided with a bore or channel having an outlet communicating with said recess and enabling liquid flow into said recess from a source connected to said channel,

said outlet being disposed at a proximal end of said recess and at a distance from said through hole.

2. The surgical tool of claim 1 wherein said recess is one of two recesses each provided in one of said lateral surfaces, each defined by a surrounding rim, said through hole enabling liquid communication between said recesses.

3. The surgical tool of claim 2 wherein each of said recesses occupies a major portion of a respective major side of said blade body, the rim of each of said recesses defining a shallow sidewall extending parallel to said distal side and said lateral sides of said blade body.

4. The surgical tool of claim 1 wherein said blade body and said recess are elongate and said through hole is a slot.