Covidien LP

Finisar Corporation

The University of North Carolina at Charlotte

Infineon Technologies Ag

Datex-ohmeda, Inc.

Paksense, Inc.

Eric Russell Larson

Robert B Stoddard

Anthony B Ross

William H Nau, Jr

Russell D Hempstead

Duane E Kerr

William J Dickhans

James S Cunningham

John J Kappus

Arlen K Ward

Scott E M Frushour

David Nichols Heard

David J Van Tol

Alexander M Waskiewicz

Nathaniel Michael Fried

Luke A Hardy

Michael B Lyons

Joseph D Brannan

Darion R Peterson

Casey M Ladtkow

Keir Hart

Richard A Willyard

Jason A Case

Thomas J Gerhardt

Thomas W Meiser

Wayne A Siebrecht

Ashish Sharma

Thomas Clifton Hutchens

John A Hammerland, Iii

Thomas P Jensen

Casimir E Lawler, Jr

David R Dodds

Larry Johnson

Scott E Frushour

Scott David Uhlrich

Chip G W Bollendonk

Kathryn G Thompson

Nick C Ortiz

Scott C Oubre

Thomas C Hutchens

James J Spencer

Allen M Bates

Paul A Winker

Claire E Benjamin

James H Taylor

William H Nau

Scott EM Frushour

Jr William H Nau

Chip GW Bollendonk

John A Iii Hammerland

Russell R Hempstead

An end effector assembly for an optical surgical instrument includes a jaw member and a plurality of optical elements positioned within a cavity of the jaw member. The jaw member has a tissue contacting surface. The jaw member has a proximal portion that is configured to secure a fiber optic cable thereto such that a distal end of the fiber optical cable extends into the cavity. The plurality of optical elements are arranged in a staircase-like manner that rises towards the tissue contacting surface as the plurality of optical elements extends distally within the cavity. The plurality of optical elements is configured to direct a beam of light exiting the fiber optic cable towards the tissue contacting surface.

Reflectors for optical-based vessel sealing

An endoscopic instrument is provided and includes a housing including an elongated shaft assembly extending distally therefrom. The elongated shaft assembly includes inner and outer shaft members. The inner and outer shaft members are removably coupled to the housing and the outer shaft member is movable with respect to the inner shaft member. An end effector is operably supported at the distal end of the outer shaft member and includes a pair of jaw members configured for treating tissue. A bushing operably couples to the inner and outer shaft members of the shaft assembly and selectively and releasably couples to the housing. The bushing includes one or more mechanical interfaces configured to engage one or more slots defined through the inner shaft member and one or more slots defined through the outer shaft member to release the inner and outer shaft members from the housing.

Endoscopic instrument

An ultrasonic surgical instrument including a blade that treats tissue and a fluid control system to cool the blade by pumping cooling fluid through the blade. The blade defines a blade lumen in fluid contact with an inflow and return conduit of the fluid control system. The fluid control system may further include a fluid reservoir holding the cooling fluid and a pump. The pump is configured to deliver the fluid from the fluid reservoir, through the inflow conduit and the blade lumen, and into return conduit.

Ultrasonic surgical instrument with cooling system

A surgical instrument includes a shaft defining an axis, an end effector coupled to a distal portion thereof, a fixed handle coupled to a proximal portion thereof, a drive bar, a movable handle, and a linkage. The drive bar is disposed within the shaft and operably coupled to the end effector. The movable handle is movable relative to the fixed handle between open and closed positions and is coupled to the drive bar via a first pin on the axis. The linkage includes a first end portion coupled to the movable handle via a second pin and a second end portion coupled to the shaft via a third pin on the axis. In the closed position of the movable handle, the second pin is disposed in a near-over-center position relative to the axis to reduce a force necessary to maintain the movable handle in the closed position.

Electrosurgical forceps for video assisted thoracoscopic surgery and other surgical procedures

An ultrasonic surgical instrument including a blade that treats tissue and a fluid control system to cool the blade by pumping cooling fluid through the blade. The blade defines a blade lumen in fluid contact with an inflow and return conduit of the fluid control system. The inflow conduit defines an open distal end positioned within the blade lumen adjacent the distal end of the blade lumen and the return conduit defines an open distal end positioned within the blade lumen adjacent the proximal end of the blade lumen. The fluid control system may further include a fluid reservoir holding the cooling fluid and an inflow pump. The inflow pump is configured to deliver the fluid from the fluid reservoir, through the inflow conduit and the blade lumen, and into return conduit.

A surgical device includes a handle assembly, an elongated portion, an end effector, a visualization device, and a constant horizon mechanism. The elongated portion extends distally from the handle assembly and defines a longitudinal axis. The end effector is rotatable about the longitudinal axis relative to the handle assembly. The visualization device defines a visualization axis. A first portion of the visualization device extends through the elongated portion, and a second portion of the visualization device is disposed at least partially within the handle assembly. The visualization device is rotatable about the longitudinal axis relative to the handle assembly. The constant horizon mechanism is disposed in operative engagement with the visualization device and is configured to prevent the visualization device from rotating about the visualization axis when the visualization device rotates about the longitudinal axis.

Visualization devices and methods for use in surgical procedures

A surgical instrument includes a housing, an end effector assembly, and a shaft. The end effector assembly includes first and second jaw members each defining a curved configuration. At least one of the jaw members is movable relative to the other between a spaced-apart position and an approximated position. The shaft includes a proximal portion coupled with and extending distally from the housing and a distal portion extending distally from the proximal portion and having the end effector assembly coupled thereto at the distal end thereof. The proximal portion defines a circular cross-sectional configuration to facilitate formation of a fluid-tight seal thereabout. The distal portion defines a rectangular cross-sectional configuration configured to facilitate insertion through a cannula.

Surgical instrument for grasping, treating, and/or dividing tissue

An ultrasonic surgical instrument includes a waveguide defining a blade at a distal end thereof and a lumen extending through a portion of the blade. The blade is configured to receive ultrasonic energy for treating tissue. The instrument further includes first and second conduits each defining a proximal end and a distal end. The second conduit is coaxially disposed about the first conduit. The distal ends of the first and second conduits extend into the lumen. The distal end of the first conduit extends further distally into the lumen than the distal end of the second conduit.

Devices, systems, and methods for cooling a surgical instrument

The present disclosure is directed to a fluid cooled ultrasonic surgical instrument and related systems and methods of use therefor. In some embodiments, the disclosed ultrasonic surgical instrument is adapted for used within an insufflated cavity or pneumoperitoneum of a patient. The instrument includes a housing having an elongate shaft, a waveguide disposed at a distal end of the shaft, a coolant inlet port defined in an outer surface of the housing, and a coolant pump disposed within the housing and configured to move coolant from the coolant inlet port to the waveguide. During use, insufflation gas from within the pneumoperitoneum is drawn into the instrument shaft by the coolant pump, and blown over the waveguide to provide cooling. The delivery of ultrasonic energy and activation of the pump may be controlled by a processor in response to user input and waveguide temperature.

Ultrasonic surgical system having a fluid cooled blade and related cooling methods therefor

A surgical instrument includes a shaft extending distally from the housing, an end effector assembly disposed at a distal end of the shaft and configured to supply energy to tissue to treat tissue, a knife slidably disposed within the shaft and movable relative to the end effector assembly between a retracted position and an extended position, and a trigger operably coupled to the housing. The trigger is selectively activatable from a neutral position to a laterally pivoted position to supply energy to the end effector assembly and is selectively actuatable from a distal position to a proximally pivoted position to deploy the knife from the retracted position to the extended position. In the laterally pivoted position of the trigger, actuation of the trigger is inhibited. In the proximally pivoted position of the trigger, activation of the trigger is inhibited.

An ultrasonic surgical instrument is provided. The ultrasonic surgical instrument includes a housing having an elongated shaft extending therefrom. The shaft has a jaw member disposed at a distal end thereof. The jaw member is movable between an open configuration and a clamping configuration and includes a tissue contacting surface thereon. A cutting blade extends from a distal end of the shaft and operably couples to the housing and adjacent the jaw member to treat tissue. At least one sensor is configured to sense at least one operational parameter of the ultrasonic surgical instrument. At least one controller in operable communication with the at least one sensor is configured to terminate delivery of ultrasonic energy to the cutting blade when the at least one sensor senses the at least one operational parameter.

Ultrasonic surgical instruments

Growing community of inventors

Boulder, CO, United States of America

Eric Russell Larson