Other

Vital Biomedical Technologies Inc.

Mohammad Ali Tavallaei

Maria Drangova

Aaron Fenster

Jeffrey Bax

David W Holdsworth

Michael Lavdas

Asha Parekh

John Matheson

An intraoperative imaging system combines a gamma probe and an ultrasound probe. The probes are linked to provide co-registration of gamma radiation detected by the gamma probe with an image acquired by the ultrasound probe. The gamma probe has a converging collimator made of a metal block having a plurality of channels therein, which converge from an output face toward an input face. Each channel extends between and opens out at the faces such that openings at the input face have smaller cross-sectional areas than openings at the output face so that each channel tapers inwardly from the output face to the input face. The collimator has an external focal point distant from the input face. The system improves identification and localization of cancerous cells, facilitating more accurate biopsy data and more complete surgical resection. The gamma probe increases sensitivity, while maintaining spatial resolution, and increasing depth of view.

Gamma probe and multimodal intraoperative imaging system

Embodiments relate to systems and methods for catheter manipulation. In particular, systems as described herein can be used to drive a catheter while maintaining control along three degrees of freedom. Systems as described herein can be used in a wide variety of settings, including MRI in which small, non-magnetic robot systems having motors that remain stationary during use are advantageous.

System for catheter manipulation

A method of controlling an ultrasonic motor coupled to a motor driver circuit, comprises receiving a temperature signal representing the temperature of the ultrasonic motor, receiving a position signal output by a first encoder representing the position of the ultrasonic motor, calculating an error between the position of the ultrasonic motor represented by the position signal and a target position, calculating a control signal based on the temperature of the ultrasonic motor represented by the temperature signal and the calculated error, and sending the control signal to the motor driver circuit to control the ultrasonic motor.

Ultrasonic motor control system and method

A method for controlling an ultrasonic motor coupled to a motor driver circuit, comprises obtaining a position of a first encoder coupled to the ultrasonic motor, calculating an error between the position of the first encoder and a target position, and sending a control signal to the motor driver circuit to control the ultrasonic motor to adjust the position of the first encoder based the calculated error.

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London, Canada

Mohammad Ali Tavallaei