Ultrasonic cutting blade with cooling liquid conduction
First Claim
Patent Images
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 bore or channel, said through hole extending in a proximal direction to a sidewall of said recess at said shank so that a proximal end of said through hole is contiguous with said sidewall and continuous with said bore or channel at said outlet,said outlet extending in said sidewall laterally away from said through hole so that said outlet communicates with and overlaps both said recess and said through hole.
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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.
33 Citations
12 Claims
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1. An ultrasonic surgical tool comprising:
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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 bore or channel, said through hole extending in a proximal direction to a sidewall of said recess at said shank so that a proximal end of said through hole is contiguous with said sidewall and continuous with said bore or channel at said outlet, said outlet extending in said sidewall laterally away from said through hole so that said outlet communicates with and overlaps both said recess and said through hole. - View Dependent Claims (2, 3, 4, 5, 12)
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6. An ultrasonic surgical tool comprising:
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a substantially planar blade body having a pair of opposed major faces, said blade body having a peripheral flange extending along three sides of said blade body and defining a recess in at least one of said major faces, said recess being substantially coextensive with said blade body, at least a portion of said flange having a cutting edge or surface; 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 vibration; wherein said blade body is provided with at least one through hole in said recess, said through hole extending between opposed major faces and enabling liquid flow from said recess to an opposing one of said major faces; wherein said shank is provided with a bore or channel having an outlet communicating with said recess to enable liquid flow into said recess from a source connected to said bore or channel; and wherein said at least one through hole extends to a proximal end of said recess and is continuous with said bore or channel at said outlet. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification