Ethicon Endo-surgery, Inc.

Ethicon, Gmbh

Other

Cilag International Gmbh

Indigo Medical, Inc.

Scott A Nield

Shan Wan

Foster B Stulen

Robert Mason Trusty

David C Yates

Kevin L Houser

Jacob Spencer Gee

Ashvani K Madan

John B Schulte

Jeffrey David Messerly

William Bruce Weisenburgh, Ii

Daniel W Price

Jeffrey L Aldridge

Cory G Kimball

Aaron C Voegele

Sora Rhee

Ronald John Kolata

John A Weed, Iii

Jane A Sheetz

Paul G Ritchie

Julianne M Siegel

William A Pollack

Geoffrey S Strobl

Timothy G Dietz

James Walden Voegele

Daniel J Mumaw

Craig N Faller

Gavin Martin Monson

William D Dannaher

Patrick A Weizman

Kevin D Felder

Stephen J Balek

William David Kelly

Michael R Lamping

Amy L Marcotte

Craig T Davis

Robert J Laird

Patrick Jarvis Scoggins

John W Willis

Martin A Reynolds

William Conrad Stenton

Shawn D Bialczak

Samantha L Sheets

Emily H Monroe

A James Gabura

Edward Malcolm Benneyworth

Martin J Reynolds

John A Weed

John A Weed Iii

A surgical instrument comprising a waveguide, an end effector, and an electrical switch is disclosed. The waveguide comprises a proximal end and a distal end, wherein the proximal end is configured to couple to an ultrasonic transducer and one output of a radio frequency (RF) generator. The end effector may comprise an ultrasonic blade and a clamp arm. The ultrasonic blade is mechanically coupled to the distal end of the waveguide and electrically coupled to the waveguide. The clamp arm comprises a movable jaw member electrically coupled to another output of the RF generator. The electrical switch is operable to cause the surgical instrument to deliver electrical current from the RF generator to the movable jaw member for a first period, and to cause the surgical instrument to deliver ultrasonic energy to the ultrasonic blade for a second period.

Ultrasonic and electrosurgical devices

An ultrasonic surgical instrument is disclosed including a handle including a pivoting handle portion, an end effector configured to treat tissue, a waveguide extending to the end effector, a battery and a vibration generating system selectively operable in a plurality of energizing operating states. The plurality of energizing operating states consists of a first operating state in which a first power is supplied to the end effector and a second operating state in which a second power is supplied to the end effector. The first power is different than the second power. The vibration generating system includes a transducer selectively attachable to the handle and a switch configured to operably switch the vibration generating system between the first operating state and the second operating state. The switch is further configured to operably switch the vibration generating system between the plurality of energizing operating states and a non-energizing operating state.

Ultrasonic surgical instruments

In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.

An ultrasonic surgical instrument is disclosed including an ultrasonic transducer, an ultrasonic end effector comprising a proximal end formed of a first material having a first coefficient of thermal expansion, and a waveguide configured to transmit ultrasonic energy generated by the ultrasonic transducer to the ultrasonic end effector. The waveguide includes an attachment portion formed of a second material having a second coefficient of thermal expansion that is greater than the first coefficient of thermal expansion. The attachment portion is configured to be selectively expandable into an acoustically coupled retaining engagement with the ultrasonic end effector by expanding faster than the proximal end of the ultrasonic end effector when heat is applied to establish an interference fit therebetween.

Coupling arrangements and methods for attaching tools to ultrasonic surgical instruments

An apparatus for operating on tissue includes a body, a shaft, an ultrasonic blade, and an acoustic assembly. The shaft extends distally from the body. The blade is disposed at the distal end of the shaft. The acoustic assembly comprises an acoustic waveguide coupled with the blade, a piezoelectric transducer element, a fastener, and a coupling member. The transducer element defines an inner diameter surface and an outer diameter surface. The fastener is configured to secure the transducer element relative to the waveguide. The coupling member is configured to provide electrical continuity between the fastener and the inner diameter surface of the transducer element. The outer diameter surface of the transducer element includes an annular recess. Another coupling member is configured to provide electrical continuity between the annular recess of the piezoelectric transducer element and a power source while permitting the piezoelectric transducer element to rotate relative to the body.

Transducer features for ultrasonic surgical instrument

An ultrasonic surgical instrument that has a waveguide that protrudes distally from the handpiece and a surgical tool that is configured to be coupled to the waveguide. The waveguide may have a distal end that is sized to be inserted into a cavity in a proximal end of the surgical tool and then selectively expanded to retain the distal end within the cavity to couple the surgical tool to the waveguide.

Ultrasonic surgical instruments comprising transducer arrangements

An ultrasonic surgical instrument includes a body such as a handle assembly and an acoustic transmission assembly. The acoustic transmission assembly includes an ultrasonic transducer and an end effector. A mounting ring is positioned on a horn of the transducer. A rotatable drum is positioned distal to the mounting ring. Piezoelectric components of the transducer are positioned proximal to the mounting ring. Electrical conduits extend from the drum to the piezoelectric components and are routed over or through the mounting ring. The drum is coupled with a power source through a slip ring assembly to selectively activate the transducer.

Coupling for slip ring assembly and ultrasonic transducer in surgical instrument

In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce a standing wave of vibrations along a longitudinal axis having a node and an anti-node at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer. In one general aspect, various embodiments are directed to a method of assembling the transducer for the ultrasonic surgical instrument. In various embodiments, the method comprises selecting piezoelectric elements and arranging the piezoelectric elements relative to the node to minimize the difference in magnitude between the currents drawn by the piezoelectric elements.

Method of assembling a transducer for a surgical instrument

Housing arrangements for ultrasonic surgical instruments

Transducer arrangements for ultrasonic surgical instruments

Growing community of inventors

Hamilton, OH, United States of America

Scott A Nield