Home | Links | Contact Us | More About Intellectual Property | Bookmark

Search patents:

Home

Liquid Purification

Clamp-coagulator-cutting-system-for-ultrasonic-surgical-instruments

Plural layered coated abrasive

It has been discovered that an especially advantageous coated abrasive for certain processes can be ...

Fluidized bed gasification ash reduction and removal process

This invention provides a particulate waste reducing and removal system. In the improved ...

Apparatus for humidifying a gas

The invention seeks to provide an apparatus for humidifying, in particular, dry oxygen gas, which ...

Atomizing and mixing apparatus

In the use of fuels of virtually all types, and in certain other restricted uses and applications, ...

Apparatus for impregnating water with CO.sub.2 using a stepped channel with multiple gas inlets

We claim: 1. An apparatus for impregnating a liquid with a gas, comprising: means forming a ...

Atmospheric deaerator unit

OF THE PREFERRED EMBODIMENTS The deaerator unit 10 is shown in FIG. 1 in combination with a ...

Method of continuously degassifying water

Helium degassing of water is well-known and routinely practiced in batch-type operations in many ...

Photoreceptor heating apparatus

These and other objects of the present invention are obtained by employing a slip ring assembly ...

Copying apparatus with a heated photosensitive drum

The present invention eliminates all the disadvantages mentioned above, and includes improvements ...

Tracking device

OF THE INVENTION With the help of figures different versions are described and their functions ...

Clamp coagulator/cutting system for ultrasonic surgical instruments

Details

Inventors: Davison, Thomas W.; DiMatteo, Stephen; Smith, Paul; Whipple, Gary;
Assignee: Ultracision, Inc. (Smithfield, RI)
Primary Examiner: Cohen; Lee S.
Assistant Examiner: Pfaffle; K. M.
Attorney, Agent or Firm: Nixon & Vanderhye

An ultrasonic surgical apparatus includes a surgical instrument having a handpiece with a transducer for converting an electrical signal into longitudinal vibratory motion of a blade connected to the handpiece and an accessory releasably connected to the handpiece to enable clamping of tissue against the vibrating blade to afford improved coagulating and cutting of tissue. Scissors-like grips actuate a pivoted clamp jaw along one side of the ultrasonically vibrating blade to compress and bias tissue against the blade in a direction normal to the direction of longitudinal vibratory movement. The clamp jaw and blade are rotatable relative to one another to align a selected blade edge of a multi-edged blade with the clamp jaw for cutting and coagulating while clamping or circumferentially spacing a selected blade edge from the clamp jaw for cutting and coagulating without clamping.

DETAILED DESCRIPTION What is claimed is: 1.
Ultrasonic surgical apparatus comprising: a housing; an ultrasonic element carried by said housing for generating ultrasonic vibration; a surgical blade having an elongated edge carried by said housing and coupled to said ultrasonic element for receiving ultrasonic vibration therefrom for vibration in a longitudinal direction parallel to said blade edge; a clamp carried by said apparatus in opposition to said blade and along one side thereof for biasing tissue between the clamp and the blade for movement in a direction toward the blade and substantially normal to the longitudinal direction of vibration of said blade; and means for selectively displacing said clamp toward and away from said blade.
2.
Apparatus according to claim 1 wherein said means for selectively displacing said clamp further includes means for pivoting said clamp toward and away from said blade.
3.
Apparatus according to claim 1 wherein said blade and said clamp are mounted for movement relative to one another about an axis extending parallel to the longitudinal direction of vibration of said blade to locate said blade edge in an operative position relative to said clamp, and means carried by said apparatus for effecting relative movement of said blade and said clamp to locate said blade edge in said operative position.
4.
Apparatus according to claim 1 wherein said blade has at least two elongated discrete edges spaced circumferentially from one another about an axis of the blade extending generally parallel to the longitudinal direction of vibration, said blade and said clamp being mounted for movement relative to one another to selectively locate one of said blade edges in an operative position relative to said clamp, and means carried by said apparatus for effecting relative movement of said blade and said clamp to located said one of said blade edges in said operative cutting position.
5.
Apparatus according to claim 4 including means cooperable between said housing and said clamp for rotating said blade about an axis generally parallel to the direction of vibration for selectively locating said one of said blade edges in said operative position

Related patents

	Methods and devices for attaching and detaching transmission components In view of the above, the present invention relates to methods and devices for facilitating attachment and detachment of transmission components. In general, a first ...
	Reactor coolant pump safety shroud The present invention is directed to a method and apparatus for repairing reactor coolant pumps, and to the resulting modified pump. The invention is relates especially ...
	Process for producing polishing pads comprising a fully impregnated non-woven batt OF THE INVENTION "Bulk density" as used herein means and refers to the density of the material including air space. "Actual density" as used herein means and refers to ...
	Method for preventing polymer scale deposition on the reactor walls in the polymerization of ethylenically unsaturated monomers OF THE PREFERRED EMBODIMENTS As is understood from the above given summary, the object of the present invention can be achieved by coating the reactor walls with a ...
	System for intravenous therapy We claim: 1. An administration set for use with a parenteral therapeutic system, the administration set comprising: (a) a primary tube for the flow of a medical fluid ...
	Intravenous medication I claim: 1. A formulation chamber for use in a parenteral delivery system, comprising: (a) a wall surrounding a lumen; (b) an inlet for admitting a fluid into the ...
	Coiled transition balloon catheter, assembly and procedure In accordance with the present invention, a balloon dilatation catheter is provided which incorporates a coil transition assembly between an elongated, high-strength ...
	Process for the production of abrasives What we claim is: 1. A process for preparing a waterproof abrasive which comprises forming a waterproof abrasive by coating a fibrous substrate with a plurality of ...
	Resin systems for high energy electron curable resin coated webs OF THE INVENTION The resin systems of the instant invention provide advantages over prior systems. The electron radiation curing resin systems for the make and size ...
	Resin systems for high energy electron curable resin coated webs OF THE INVENTION The resin systems of the invention may be utilized to form fibrous backed, usually cloth, or paper backed, resin treated sheet materials. The resin ...

0.064
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved