Abstract: There is described an artificial eye system comprising: a display unit for displaying an image of an eye thereon, the screen comprising a plurality of light cells each adapted to emit light, at least a given one of the light cells being adapted to selectively emit light and detect light; and a controller for controlling the display unit, the controller for: operating at least one first light cell each as a light detector in order to detect light incident thereon, the least one first light cell being selected among the at least a given one of the light cells; determining an image of the eye to be displayed on the display unit as a function of the detected light; and operating second light cells each as a light emitter in order to display the determined image of the eye on the display unit, the second light cells being selected among the plurality of light cells.

Abstract: There is described a system for controlling an artificial body, the system comprising: a see-through display for displaying an image of an eye thereon; a light detector for detecting light propagating through the see-through display and coming from an external environment; and a controller for: determining a reaction for the artificial body using information about the light detected by the light detector; and outputting the determined reaction.

Abstract: A seal runner for a gas turbine engine, the seal runner including an annular body having a sealed cavity defined therein, the cavity being elongated along an axial direction of the body and being annular, the cavity at least partially filled with a coolant, the coolant being liquid across a range of operating temperatures of the gas turbine engine, the coolant having a temperature dependent density across the range of operating temperatures of the gas turbine engine. A gas turbine engine and a method of cooling a seal runner exposed to a temperature gradient are also discussed.

Abstract: The present disclosure relates to a system for moving an anatomical model of a fetus inside a mannequin having a birth canal. The system comprises a descent mechanism and a rotation mechanism. The descent mechanism is integrated in the mannequin and can move an anatomical model of a fetus longitudinally towards the birth canal of the mannequin. The rotation mechanism is mounted to the descent mechanism and can rotate the anatomical model of the fetus. The model of the fetus is inserted in the rotation mechanism. Also provided is a childbirth simulator comprising a mannequin with a birth canal, and the aforementioned system integrated in the mannequin for moving an anatomical model of a fetus inside the mannequin.

Abstract: The present disclosure relates to a body cavity simulator. The body cavity simulator is adapted for simulating medical instrument insertion procedures. The body cavity simulator comprises a duct, a plurality of haptic mechanisms and a plurality of sensors. The duct defines an insertion path. The insertion path is adapted for receiving and guiding translation of a simulated medical instrument. The haptic mechanisms are adapted for applying a resistive haptic force to the simulated medical instrument. Each haptic mechanism is positioned at a haptic point along the insertion path. Each sensor is co-located with one of the haptic mechanisms. Each sensor is adapted for capturing the simulated medical instrument at the haptic point and generating corresponding positioning data.

Abstract: The present disclosure relates to a body cavity simulator. The body cavity simulator is adapted for simulating medical instrument insertion procedures. The body cavity simulator comprises a duct, a plurality of haptic mechanisms and a plurality of sensors. The duct defines an insertion path adapted for receiving and guiding translation of a simulated medical instrument. Each haptic mechanism is positioned at a haptic point along the insertion path. Each haptic mechanism is adapted for applying a resistive haptic force to the simulated medical instrument. Each sensor is co-located with one of the haptic mechanisms. Each sensor is adapted for detecting the simulated medical instrument at the haptic point and generating simulated medical instrument positioning data.

Abstract: The present disclosure relates to an apparatus for simulating insertion of an inner elongated instrument attached to a tether into a structure through an outer elongated instrument. The apparatus has a carriage for mounting the outer elongated instrument, for translation according to a translation of the outer elongated instrument. The apparatus has a pulley for anchoring a tether and rotating according to a longitudinal translation of the tether into the outer elongated instrument. The apparatus has a feedback force actuator for applying an adjustable resistive force to a translation of the carriage according to the sensed longitudinal position of the carriage and resistance characteristics of the structure, and for further applying an adjustable resistive force to a rotation of the pulley according to the sensed angular position of the pulley and the resistance characteristics. The present disclosure also relates to a medical insertion simulator comprising such an apparatus.

Abstract: The present disclosure relates to an apparatus for simulating insertion of an elongated instrument into a structure. The apparatus comprises a casing having an aperture for receiving a distal end of the elongated instrument therethrough and a longitudinal guide fixedly mounted in the casing. The apparatus has a carriage for mounting the distal end of the elongated instrument, the carriage being slidably mounted onto the longitudinal guide for translation therealong according to a translation of the elongated instrument through the aperture of the casing. The apparatus comprises a carriage position sensing element for sensing a longitudinal position of the carriage and a feedback force actuator for applying an adjustable resistive force to a translation of the carriage on the longitudinal guide according to the sensed position of the carriage and resistance characteristics of the structure. The present disclosure also relates to a medical insertion simulator comprising such an apparatus.

Abstract: The present disclosure relates to an apparatus for simulating insertion of an elongated instrument attached to a tether into a structure. The apparatus comprises a casing having an aperture for receiving a distal end of the tether therethrough. The apparatus has a pulley having an outer tether receiving groove on a peripheral portion and an anchoring element therein for anchoring the distal end of the tether, the pulley rotating according to a longitudinal translation of the tether relatively to the casing. The apparatus has a sensing arrangement for sensing an angular position of the pulley representative of a relative longitudinal position of the elongated instrument. The apparatus has a feedback force actuator for applying an adjustable resistive force to a rotation of the pulley according to the sensed angular position and resistance characteristics of the structure. The present disclosure also relates to a medical insertion simulator comprising such an apparatus.

Abstract: The present disclosure relates to an apparatus for simulating insertion of an inner elongated instrument attached to a tether into a structure through an outer elongated instrument. The apparatus has a carriage for mounting the outer elongated instrument, for translation according to a translation of the outer elongated instrument. The apparatus has a pulley for anchoring a tether and rotating according to a longitudinal translation of the tether into the outer elongated instrument. The apparatus has a feedback force actuator for applying an adjustable resistive force to a translation of the carriage according to the sensed longitudinal position of the carriage and resistance characteristics of the structure, and for further applying an adjustable resistive force to a rotation of the pulley according to the sensed angular position of the pulley and the resistance characteristics. The present disclosure also relates to a medical insertion simulator comprising such an apparatus.

Abstract: In real-time video applications, where unreliable networks are commonplace, corrupted video packets can affect adversely the visual quality. In this patent application, we present an improved method and system for video error correction based on maximum likelihood. Rather than discarding corrupted video packets, the method estimates the likeliest syntactically valid video slice content based on these packets. We present two embodiments, which permits solving the problem at the slice-level, and a simplified solution operating at the syntax element-level. The performance of the method is evaluated using the H.264 baseline profile. Unlike existing video error concealment methods, we correct errors in the bitstream instead of reconstructing missing pixels. Simulation results show that the proposed method yields improved visual quality, and is also computationally simpler than existing state-of-the-art error concealment methods. A corresponding system for video error correction is also provided.

Abstract: The present disclosure relates to a defibrillating simulator comprising an apparatus for adapting a defibrillator for training. The apparatus for adapting a defibrillator for training comprises a pair of electrode covers to be mounted on electrodes of the defibrillator for receiving an electrical discharge generated by the defibrillator. The apparatus further comprises an impedance connected to the pair of electrode covers, the impedance absorbing some of the received electrical discharge and generates an electrically reduced electrical discharge. The apparatus comprises an analyzer for analyzing the electrically reduced electrical discharge and providing analysis data representative of the electrical discharge. The defibrillating simulator further comprises a scenario unit providing a training scenario comprising physiological data. The defibrillating simulator further comprises a processing unit for correlating the analysis data with the training scenario to generate training results.

Abstract: The present simulated medical instrument is adapted for insertion in a channel of a body cavity simulator. The present simulated medical instrument comprises a tube and at least one tracking device. The tube comprises a proximal end and a distal end. The tube is sized and shaped for insertion in the channel of the body cavity simulator. The at least one tracking device is positioned at the distal end of the tube. The tracking device has a pattern detectable via camera. The tracking device is adapted for receiving friction caused by a dynamic haptic mechanism positioned along at least a section of the channel of the body cavity simulator.

Abstract: The present disclosure relates to an apparatus for adapting a defibrillator for training. The apparatus comprises a pair of electrode covers to be mounted on electrodes of the defibrillator, the electrode covers receiving an electrical discharge generated by the defibrillator. The apparatus further comprises an impedance connected to the pair of electrode covers to receive there through the electrical discharge and absorb some of the electrical discharge to generate an electrically reduced electrical discharge. The apparatus further comprises an analyzer for analyzing the electrically reduced electrical discharge and providing analysis data representative of the electrical discharge.

Abstract: The present disclosure relates to a defibrillating simulator comprising an apparatus for adapting a defibrillator for training. The apparatus for adapting a defibrillator for training comprises a pair of electrode covers to be mounted on electrodes of the defibrillator for receiving an electrical discharge generated by the defibrillator. The apparatus further comprises an impedance connected to the pair of electrode covers, the impedance absorbing some of the received electrical discharge and generates an electrically reduced electrical discharge. The apparatus comprises an analyzer for analyzing the electrically reduced electrical discharge and providing analysis data representative of the electrical discharge. The defibrillating simulator further comprises a scenario unit providing a training scenario comprising physiological data. The defibrillating simulator further comprises a processing unit for correlating the analysis data with the training scenario to generate training results.

Abstract: A seal runner for a gas turbine engine, the seal runner including an annular body having a sealed cavity defined therein, the cavity being elongated along an axial direction of the body and being annular, the cavity at least partially filled with a coolant, the coolant being liquid across a range of operating temperatures of the gas turbine engine, the coolant having a temperature dependent density across the range of operating temperatures of the gas turbine engine. A gas turbine engine and a method of cooling a seal runner exposed to a temperature gradient are also discussed.

Abstract: The present system and method related to simulating medical procedures. The system and method comprise a body cavity simulator and at least one camera. The body cavity simulator comprises a channel having a proximal end, a distal end, and an inner longitudinal passage extending between the proximal end and the distal end. The channel is partially made of a material comprised of one of the following: a transparent material, a translucent material, a semi-transparent material. The channel receives at least one simulated medical instrument through the proximal end. The at least one camera is adapted for capturing through the material of the channel a pattern of a tracking device of the at least one simulated medical instrument inserted in the channel. The camera transmits data corresponding to the captured pattern of the tracking device to a processing unit.

Abstract: The present simulated medical instrument is adapted for insertion in a channel of a body cavity simulator. The present simulated medical instrument comprises a tube and at least one tracking device. The tube comprises a proximal end and a distal end. The tube is sized and shaped for insertion in the channel of the body cavity simulator. The at least one tracking device is located in proximity of the distal end of the tube, the tracking device having a pattern detectable via camera.

Abstract: Methods and systems for encoding video data are provided. Evolving standards for video encoding such as High Efficiency Video Coding (HEVC) standard require a significant increase in computational complexity for both inter and intra encoding. The method includes calculating an approximate cost of each of a first set of prediction modes. Then selecting a second set of prediction modes from the first set of prediction modes based on probability distributions associated with each of the modes in the first set of prediction modes, the second set having substantially fewer prediction modes than the first. A number of candidate prediction modes prior to rate distortion optimization (RDO) is reduced. Experimental results show that the proposed method provides substantial time reduction up and negligible quality loss as compared to the HEVC reference.

Abstract: In real-time video applications, where unreliable networks are commonplace, corrupted video packets can affect adversely the visual quality. In this patent application, we present an improved method and system for video error correction based on maximum likelihood. Rather than discarding corrupted video packets, the method estimates the likeliest syntactically valid video slice content based on these packets. We present two embodiments, which permits solving the problem at the slice-level, and a simplified solution operating at the syntax element-level. The performance of the method is evaluated using the H.264 baseline profile. Unlike existing video error concealment methods, we correct errors in the bitstream instead of reconstructing missing pixels. Simulation results show that the proposed method yields improved visual quality, and is also computationally simpler than existing state-of-the-art error concealment methods. A corresponding system for video error correction is also provided.