JAMES HANDA, M.D.
Medical Practice at Wolfe St, Baltimore, MD

2012013, May 24, 2012

Aug 5, 2010

13/387950

Russell H. Taylor - Severna Park MD, US
Seth D. Billings - Pellston MD, US
Peter L. Gehlbach - Hunt Valley MD, US
Gregory D. Hager - Baltimore MD, US
James T. Handa - Baltimore MD, US
Jin Ung Kang - Ellicott City MD, US
Balazs Vagvolgyi - Baltimore MD, US
Raphael Sznitman - Baltimore MD, US
Zachary Pezzementi - Baltimore MD, US

The Johns Hopkins University - Baltimore MD

A61B 6/00

600476

An observation system for viewing light-sensitive tissue includes an illumination system configured to illuminate the light-sensitive tissue, an imaging system configured to image at least a portion of the light-sensitive tissue upon being illuminated by the illumination system, and an image display system in communication with the imaging system to display an image of the portion of the light-sensitive tissue. The illumination system is configured to illuminate the light-sensitive tissue with a reduced amount of light within a preselected wavelength range compared to multispectral illumination light, and the image of the portion of the light-sensitive tissue is compensated for the reduced amount of light within the preselected frequency range to approximate an image of the light-sensitive tissue under the multispectral illumination

2014006, Mar 6, 2014

Aug 2, 2011

13/813717

Russell H. Taylor - Severna Park MD, US
Marcin Arkadiusz Balicki - Baltimore MD, US
James Tahara Handa - Baltimore MD, US

THE JOHNS HOPKINS UNIVERSITY - Baltimore MD

A61B 19/00

606103

A system and method for tool exchange during surgery for cooperatively controlled robots comprises a tool holder for receiving a surgical tool adapted to be held by a robot and a surgeon, a tool holding element for constraining downward motion of the tool while allowing low force removal of the surgical tool from the holder, a first sensor for detecting if the surgical tool is docked within the tool holder, and a selector for automatically selecting different movements or actions of the tool holder to be performed based upon information detected by the first sensor. The system and method of the present invention provides an advantage to an often slow moving cooperative robot, by increasing the speed by which the tool holder may move in the direction away from the patient.

2014005, Feb 20, 2014

Aug 2, 2011

13/813727

Russell H. Taylor - Severna Park MD, US
Marcin Arkadiusz Balicki - Baltimore MD, US
James Tahara Handa - Baltimore MD, US
Peter Louis Gehlbach - Hunt Valley MD, US
Iulian Iordachita - Towson MD, US
Ali Uneri - Baltimore MD, US

THE JOHNS HOPKINS UNIVERSITY - Baltimore MD

A61B 19/00, A61B 3/10, A61B 5/00, A61F 9/007

606130

A system and method for cooperative control of surgical tool includes a tool holder for receiving a surgical tool adapted to be held by a robot and a surgeon, a sensor for detecting a force based on operator input and/or tool tip forces, a controller for limiting robot velocity based upon the force detected so as to provide a haptic feedback, a selector for automatically selecting one level of a multi-level audio feedback based upon the detected force applied, the audio feedback representing the relative intensity of the force applied, and an audio device for providing the audio feedback together with the haptic feedback. The audio feedback provides additional information to the surgeon that allows lower forces to be applied during the operation.

2013030, Nov 14, 2013

Aug 2, 2011

13/813738

Russell H. Taylor - Severna Park MD, US
Marcin Arkadiusz Balicki - Baltimore MD, US
James Tahara Handa - Baltimore MD, US
Peter Louis Gehlbach - Hunt Valley MD, US
Iulian Iordachita - Towson MD, US
Ali Uneri - Baltimore MD, US

THE JOHNS HOPKINS UNIVERSITY - Baltimore MD

A61B 19/00

700260

A method and system for micro-force guided cooperative control that assists the operator in manipulating tissue in the direction of least resistance. A tool holder receives a surgical tool adapted to be held by a robot and a surgeon. A first sensor measures interaction forces between a tip of the surgical tool and tissue of a region of interest. A second sensor measures interaction forces between the surgeon and a handle to the surgical tool. A data processor is configured to perform an algorithm to actively guide the surgical tool by creating a bias towards a path of least resistance and limit directional tool forces of the surgical tool as a function of handle input forces and tip forces. This function offers assistance to challenging retinal membrane peeling procedures that require a surgeon to delicately delaminate fragile tissue that is susceptible to hemorrhage and tearing due to undesirable forces.

2011012, May 26, 2011

May 18, 2009

12/992519

Nabil Simaan - New York NY, US
Russell H. Taylor - Severna Park MD, US
James T. Handa - Baltimore MD, US

The Johns Hopkins University - Baltimore MD

A61B 19/00, B23P 11/00

606130, 29428

A system for operating within an interior region of the eye, or other organ, includes a delivery channel having a proximal portion located exterior to the eye and a distal portion positionable within the interior region of the eye, wherein the distal portion of the delivery channel defines an outer diameter that is smaller than or equal to about 18 gauge, and a micro-robot extendable from the distal portion of the delivery channel, wherein the micro-robot is remotely operable to change shape within the interior region of the eye.

2011010, May 5, 2011

Nov 1, 2010

12/917168

Marcin A. Balicki - Baltimore MD, US
Russell H. Taylor - Severna Park MD, US
Jin U. Kang - Ellicott City MD, US
Peter L. Gehlbach - Hunt Valley MD, US
James T. Handa - Baltimore MD, US
Jaeho Han - Columbia MD, US

The Johns Hopkins University - Baltimore MD

A61F 9/007, A61B 19/00, A61B 17/00

606130, 606 1

A surgical instrument has a surgical tool that has a proximal end and a distal end, and an optical sensor that has at least a portion attached to the surgical tool. The surgical tool has a portion that is suitable to provide a reference portion of the surgical tool, and the optical sensor has an end fixed relative to the reference portion of the surgical tool such that the reference portion of the surgical tool can be detected along with tissue that is proximate or in contact with the distal end of the surgical tool while in use.

2013003, Feb 7, 2013

Apr 20, 2011

13/642436

Jin U. Kang - Ellicott City MD, US
Seth D. Billings - Pellston MD, US
Peter L. Gehlbach - Monkton MD, US
James T. Handa - Baltimore MD, US
Yong Huang - Baltimore MD, US
Russell H. Taylor - Severna Park MD, US
Yi Yang - Greensboro NC, US

The Johns Hopkins University - Baltimore MD

F21V 8/00, G02B 6/04, G02B 6/30

362554, 385 49, 362558, 362555

An illumination system includes a light source, an optical waveguide that has a proximal end and a distal end such that the proximal end is arranged to receive light from the light source and the distal end is suitable to illuminate an object of interest; and an optical coupler constructed and arranged to couple light from the light source into the optical waveguide. The optical coupler includes a reflective surface that reflects at least some light diverging from the light source to be coupled into the optical waveguide.