Vanderbilt University

University of Tennessee Research Foundation

The Johns Hopkins University

The University of North Carolina at Chapel Hill

Robert J Webster, Iii

Ray Adams Lathrop

Philip Joseph Swaney

Richard Joseph Hendrick

Arthur William Mahoney

Trevor L Bruns

Stanley Duke Herrell

Jason E Mitchell

Daniel Caleb Rucker

James Netterville

Patrick S Wellborn

Ryan Ponten

Hunter Bryant Gilbert

Ron Alterovitz

S Duke Herrell

Kyle Weaver

Arundathi Prasad

Andria Annette Remirez

Katherine E Riojas

Kaitlin Oliver Butler

Robert F Labadie

J Michael Fitzpatrick

Allison Mariko Okamura

Bryan Irby Hartley

Kenneth Y Goldberg

Gregory Chirikjian

Thomas J Withrow

Richard Harry Feins

Erik Lamers

Noah Cowan

David B Comber

Paul T Russell

Jessica Burgner

Gregoire S Blachon

Jenna Toennies

Alan David Kuntz

Patrick L Anderson

A small diameter surgical tool implements an agonist-antagonist deflectable joint. The deflectable joint is an actuatable bendable structure that uses push-pull, agonist-antagonist action of a pair of nested tubes to actuate the joint. The tubes are designed to have non-central, offset neutral axes, and they are fixed together at locations distal to the deflectable joint, such as at their distal ends. Axial translations of the tubes relative to each other causes a push-pull, agonist-antagonist action between the tubes, which causes the deflectable joint to bend. In one implementation, a deflectable joint can be created in nested tubes by configuring radial portions of the tube sidewalls extending along the joint to have an axial region of reduced stiffness. As a result, axial agonist-antagonist motion between the tubes can cause bending of the deflectable joint.

Surgical device tip with deflectable joint

A system and method for determining the location of an implant such as a cochlear implant relative to a structure of interest such as a tissue wall. The implant has an electrode array including a first electrode and a second electrode. The electrode array is insertable into an electrically-conductive volume relative to the inner wall of the scala tympani of the cochlea. A pulse generator generates a biphasic, constant-current pulse on the first and second electrodes. A controller measures the differential voltage across the pair of electrodes during the current pulse. The controller determines the proximity between the inner wall and the segment of the electrode array between the first and second electrodes based on the differential voltage between the first and second electrodes.

System and method for real-time cochlear implant localization

An apparatus for supporting a medical device on a patient includes a mounting structure configured to be fitted onto the patient to encircle at least a portion of a body part of the patient. The mounting structure includes an inner layer and an outer layer that define a confinement. A jamming material is contained within the confinement. The jamming material is configured to flow within the confinement to conform to the shape of the body part of the patient onto which the mounting structure is fitted. The mass of jamming material is configured to harden and become rigid in its conformed shape in response to a vacuum being formed in the confinement.

Variable rigidity, conformable apparatus for non-invasively affixing surgical fiducials and surgical tools to patients

This disclosure relates to a magnetorheological (MR) brake. The MR brake includes a rotor constructed at least partially of a ferromagnetic material, and a housing that supports the rotor such that the rotor and the housing are rotatable relative to each other about an axis, wherein the housing and rotor are configured such that a fluid gap is defined between the housing and the rotor, and wherein portions of the housing adjacent the rotor are constructed at least partially of a ferromagnetic material. An MR fluid is disposed in the fluid gap. A current-carrying coil is excitable to generate a magnetic field within ferromagnetic portions of the rotor and the housing and acts on the MR fluid. At least one element constructed of a material having low magnetic permeability is configured route the lines of magnetic flux through surrounding higher permeability material on opposite sides of the fluid gap.

Magnetorheological brake with high torque and fast response

A steerable surgical needle () includes an elongated needle shaft (), a beveled tip portion (), and a flexural element () that connects the needle shaft () with the tip portion () and permits the tip portion to deflect relative to the needle shaft. A method for steering the surgical needle () through tissue includes the steps of advancing the needle in the body tissue to induce tip flexure which causes the needle to follow a curved trajectory, and rotating the needle about its longitudinal axis in place, without advancement, to remove the tip flexure.

Steerable surgical needle

A snare tool manipulator system includes an elongated flexible device having a length and including a distally mounted end effector configured to perform a task. The flexible device is operable to manipulate the end effector in order to perform the task. The system also includes an elongated snare tool including a distally mounted snare device configured for grasping the flexible elongated member at a position along its length. The snare tool is operable robotically to manipulate the flexible device which in response manipulates the end effector.

Snare tool manipulator system

Methods, systems, and computer readable media for transoral lung access. In some examples, the system includes a bronchoscope, a concentric tube probe deployable from within the bronchoscope, and a steerable needle nested deployable from within the concentric tube probe. The system can include a control system for deploying the concentric tube probe from the bronchoscope into a lung to a location where a target is within a range of the steerable needle and for deploying the steerable needle from the location to the target.

Methods, systems, and computer readable media for transoral lung access

Continuum robots and similar devices and methods and systems for controlling such devices are provided. The devices can include rods comprising strips, that are pre-curved, or both. Also provided is a system and method for modeling and controlling the configuration and operation of such devices.

Continuum devices and control methods thereof

A surgical manipulator includes an internal working end having an internal joint, and an external control interface linked to the internal working end for controlling the internal working end. The external control interface includes at least one lever defining a grip volume for a surgeon's hand when gripping and operating the at least one lever, and an external joint linked to the internal joint for controlling the internal joint. The external joint is positioned substantially within the grip volume.

Dexterous surgical manipulator and method of use

The present invention relates to a system and apparatus for implementing a method for identifying tube parameters of a curved tube of an active cannula for operating on a target in a patient. The method includes the step (a) of acquiring a model of the patient anatomy including the target. The method also includes the step (b) of selecting a set of parameters characterizing a curved tube. The method also includes the step (c) of computing a workspace for an active cannula having the selected curved tube parameters. The method also includes the step (d) of comparing the workspace to the anatomical model to determine the degree to which an active cannula having the selected curved tube parameters covers the target. The method also includes the step (e) of repeating steps (b) through (d) through a defined number of curved tube parameter sets. The method also includes the step (f) of identifying the curved tube parameters that provide an active cannula with an optimal degree of target coverage.

System, method, and apparatus for configuration, design, and operation of an active cannula robot

A robotic surgical apparatus includes at least two tubes having a nested, concentric configuration with an inner tube positioned in an outer tube. The tubes are configured to deliver surgical therapy. A first tube carrier connected to the outer tube and a second tube carrier connected to the inner tube. The first tube carrier and its associated outer tube and the second tube carrier and its associated inner tube form a robotic arm assembly. An actuator for actuating the robotic arm assembly is configured to receive the robotic arm assembly via a tube insertion interface into which the robotic arm assembly can be inserted.

Concentric tube robot

A surgical robot system includes a support structure for positioning relative to a patient. The support structure includes a plurality of mounting structures. One or more robotic tool cassettes that are configured to interchangeably connect with any of the mounting structures. Each tool cassette includes a concentric tube manipulator and a transmission for operating the concentric tube manipulator. The support structure also includes a tube collector including a tube assembly associated with each of the mounting structures. The tube assemblies are configured to receive the concentric tube manipulators and guide the manipulators to extend along predetermined trajectories relative to each other.

Modular sterilizable robotic system for endonasal surgery

An apparatus () for performing endoscopic surgery on a patient () includes at least two concentric tube manipulators () adapted to carry devices () for performing a surgical operation. A transmission () operates the concentric tube manipulators (). An endoscope tube () has a proximal end portion fixed to the transmission (). The concentric tube manipulators () extend from the transmission () through an inner lumen () of the endoscope tube () and are operable to extend from a distal end () of the endoscope tube.

System and method for endoscopic deployment of robotic concentric tube manipulators for performing surgery

Growing community of inventors

Nashville, TN, United States of America

Robert J Webster, Iii