1
Michael Eng, Raju R Viswanathan, Peter R Werp, Ilker Tunay, Ashwini K Pandey, Gareth T Munger: Electrophysiology catheter. Stereotaxis, Harness Dickey & Pierce, December 27, 2005: US06980843 (119 worldwide citation)

An electrophysiology catheter includes a tube having a proximal end, a distal end, and a lumen therebetween. The tube is preferably comprised of multiple sections of different flexibility, arranged so that the flexibility of the catheter increases from the proximal end to the distal end. There is a ...


2
Raju R Viswanathan: Method and apparatus for refinably accurate localization of devices and instruments in scattering environments. Stereotaxis, Harness Dickey & Pierce, November 29, 2005: US06968846 (84 worldwide citation)

A method of localizing a device, medical or otherwise, within a three dimensional environment, the method comprising: (a) transmitting time varying magnetic fields from at least three transmitters, (b) receiving the transmitted electromagnetic radiation as induced voltage signals from at least one r ...


3
Raju R Viswanathan: Image-based medical device localization. Stereotaxis, Harness Dickey & Pierce, March 13, 2007: US07190819 (61 worldwide citation)

A method of identifying an elongate medical device in a two-dimensional image of an operating region includes filtering pixels meeting a predetermined intensity requirement for linear scaling, dividing the filtered pixels into groups of contiguous pixels, and selecting from the groups a group corres ...


4
Raghu Raghavan, Timothy Poston, Raju R Viswanathan: Method and apparatus for targeting material delivery to tissue. Image Guided Neurologics, Mark A Litman & Assoc P A, April 15, 2003: US06549803 (59 worldwide citation)

Movement of material in an organism, such as a drug injected into a brain, is modeled by a uniformly structured field of static constants governing transport by moving fluid and diffusion within the fluid. This supports planning of material introduction, (e.g., infusion, perfusion, retroperfusion, i ...


5
Raghu Raghavan, Raju R Viswanathan, Timothy Poston: Drug delivery and catheter systems, apparatus and processes. Image Guided Neurologics, Mark A Litman & Assoc P A, June 3, 2003: US06572579 (54 worldwide citation)

A class of customizable injection devices or delivery instruments whose basic form is a stiff tube with holes of user-selectable size at several user-selectable places is described. The use of this device includes a method of selection and construction of a particular device from such a class of dev ...


6
Raju R Viswanathan, Walter M Blume, Jeffrey M Garibaldi, John Rauch: User interface for remote control of medical devices. Stereotaxis, Harness Dickey & Pierce, June 2, 2009: US07543239 (53 worldwide citation)

An interface for remotely controlling a medical device in a patient's body provides a two dimensional display of a three dimensional rendering of the operating region, and allows the user to select the orientation or location of the distal end of the medical device on the display and then operate a ...


7
Raju R Viswanathan, Walter M Blume, Jeffrey M Garibaldi, John Rauch: User interface for remote control of medical devices. Stereotaxis, Harness Dickey & Pierce, April 7, 2009: US07516416 (45 worldwide citation)

An interface for remotely controlling a medical device in a patient's body provides a two dimensional display of a three dimensional rendering of the operating region, and allows the user to select the orientation or location of the distal end of the medical device on the display and then operate a ...


8
Raju R Viswanathan: System and method of surgical imagining with anatomical overlay for navigation of surgical devices. Stereotaxis, Harness Dickey & Pierce, November 9, 2010: US07831294 (41 worldwide citation)

A system and method are provided for control of a navigation system for deploying a medical device within a subject, and for enhancement of a display image of anatomical features for viewing the projected location and movement of medical devices, and projected locations of a variety of anatomical fe ...


9
Raju R Viswanathan, Raghu Raghavan: Device for high gain and uniformly localized magnetic resonance imaging. Image Guided Neurologies, Mark A Litman & Assoc P A, November 26, 2002: US06487437 (34 worldwide citation)

A microcoil configuration, preferably on a medical device to be inserted into a patient, has an opposed pair of microcoils. At least one or each microcoil of the opposed pair of microcoils has at least a region where a diameter circumscribed by a first winding is greater than the diameter circumscri ...


10
Raju R Viswanathan: Remote control of medical devices using a virtual device interface. Stereotaxis, Harness Dickey & Pierce, December 8, 2009: US07630752 (33 worldwide citation)

An interface system and method for controlling a magnetic surgery system by displaying a virtual image of the device, adjusting the configuration of the device or the actuation controls to be applied to the device until the configuration of the displayed device assumes the configuration desired by t ...