69 results about "Physiological motion" patented technology

Systems and methods for determining presence and / or physiological motion of at least one subject using a Doppler radar system having a quadrature receiver are provided. In one example, the apparatus includes a transmitter for transmitting a source signal, a quadrature receiver for receiving the source signal and a modulated source signal (e.g., as reflected from one or more subjects), and logic for mixing the source signal and the received modulated source signal to generate in-phase (I) and quadrature (Q) data, whereby nulls in the signal are avoided. In one example, the quadrature receiver further includes logic for center tracking quadrature demodulation. The apparatus may further include logic for determining physiological motion (e.g., heart rate and / or respiration rate of a person) of a subject based on the source signal and the modulated source signal.

The invention relates to a spinal implant to be inserted between two vertebra to support and stabilize adjacent vertebra and allow for physiological motion. One embodiment of the implant includes an upper assembly and a lower assembly, where the assemblies are adapted to articulate relative to one another. This implant also includes elongate elements that are deployable between a closed position and an open position. Portions of the implant can interlock to form various shapes. The invention includes an implantable device to support the vertebrae, and a minimally invasive method for inserting and deploying the device within the intervertebral space.

The invention relates to a spinal implant to be inserted between two vertebra to support and stabilize adjacent vertebra and allow for physiological motion. One embodiment of the implant includes an upper assembly and a lower assembly, where the assemblies are adapted to articulate relative to one another. This implant also includes elongate elements that are deployable between a closed position and an open position. Portions of the implant can interlock to form various shapes. The invention includes an implantable device to support the vertebrae, and a minimally invasive method for inserting and deploying the device within the intervertebral space.

Aspects of the of the disclosure relate to a non-contact physiological motion sensor and a monitor device that can incorporate use of the Doppler effect. A continuous wave of electromagnetic radiation can be transmitted toward one or more subjects and the Doppler-shifted received signals can be digitized and / or processed subsequently to extract information related to the cardiopulmonary motion in the one or more subjects. The extracted information can be used, for example, to determine apneic events and / or to provide apnea therapy to subjects when used in conjunction with an apnea therapy device. In addition, methods of use are disclosed for sway cancellation, realization of cessation of breath, integration with multi-parameter patient monitoring systems, providing positive providing patient identification, or any combination thereof.

A radar-based physiological motion sensor is disclosed. Doppler-shifted signals can be extracted from the signals received by the sensor. The Doppler-shifted signals can be digitized and processed subsequently to extract information related to the cardiopulmonary motion in one or more subjects. The information can include respiratory rates, heart rates, waveforms due to respiratory and cardiac activity, direction of arrival, abnormal or paradoxical breathing, etc. In various embodiments, the extracted information can be displayed on a display.

Aspects of the of the disclosure relate to a non-contact physiological motion sensor and a monitor device that can incorporate use of the Doppler effect. A continuous wave of electromagnetic radiation can be transmitted toward one or more subjects and the Doppler-shifted received signals can be digitized and / or processed subsequently to extract information related to the cardiopulmonary motion in the one or more subjects. The extracted information can be used, for example, to determine apneic events and / or snoring events and / or to provide apnea or snoring therapy to subjects when used in conjunction with an apnea or snoring therapy device. In addition, methods of use are disclosed for sway cancellation, realization of cessation of breath, integration with multi-parameter patient monitoring systems, providing positive providing patient identification, or any combination thereof.

A surgical brace device for use in a surgical procedure including surgical stapling operations on bodily organ to protect the stapled tissue against damaging effects of physiological motion of the organ is disclosed herein. The surgical brace device comprises a pair of splint members of a predetermined rigidity profile, configured to be disposed on either side of the stapled tissue and dimensioned to span at least a portion of the width thereof; a strut member fixedly joined with the pair of splint members at one ends thereof; and a tie member configured to traverse the tissue of the organ disposed at a predetermined distance from the plurality of strut members to interconnect the pair of splint members and anchor the surgical brace device thereto.

A method for non-rigid registration and fusion of images with physiological modeled organ motions resulting from respiratory motion and cardiac motion that are mathematically modeled with physiological constraints. A method of combining images comprises the steps of obtaining a first image dataset (24) of a region of interest of a subject and obtaining a second image dataset (34) of the region of interest of the subject. Next, a general model of physiological motion for the region of interest is provided (142). The general model of physiological motion is adapted with data derived from the first image data set (140) to provide a subject specific physiological model (154). The subject specific physiological model is applied (172) to the second image dataset (150) to provide a combined image (122).

A radar-based physiological motion sensor is disclosed. Doppler-shifted signals can be extracted from the signals received by the sensor. The Doppler-shifted signals can be digitized and processed subsequently to extract information related to the cardiopulmonary motion in one or more subjects. The information can include respiratory rates, heart rates, waveforms due to respiratory and cardiac activity, direction of arrival, abnormal or paradoxical breathing, etc. In various embodiments, the extracted information can be displayed on a display.

Methods and apparatus provide physiological movement detection, such as gesture, breathing, cardiac and / or gross motion, such as with sound, radio frequency and / or infrared generation, by electronic devices such as vehicular processing devices. The electronic device in a vehicle may, for example, be any of an audio entertainment system, a vehicle navigation system, and a semi-autonomous or autonomous vehicle operations control system. One or more processors of the device, may detect physiological movement by controlling producing sensing signal(s) in a cabin of a vehicle housing the electronic device. The processor(s) control sensing, with a sensor, reflected signal(s) from the cabin. The processor(s) derive a physiological movement signal with the sensing signal and reflected signal and generate an output based on an evaluation of the derived physiological movement signal. The output may control operations or provide an input to any of the entertainment system, navigation system, and vehicle operations control system.

The invention discloses an in vivo detection method and a system based on the physiological motion of face, pertaining to the face recognition field. The method includes that: Step A. detecting a motion region and a motion direction of the object within the imaging view of the detection system, and locking a face detection result frame; Step B. judging whether a valid face motion exists in the face detection result frame, if not, a picture face is determined, and if it is, turn to the Step C; Step C. judging whether the face motion in the face detection result frame is a physiological motion, if not, a picture face is determined, and if it is, an actual face is determined. The system comprises a motion detection module, a valid-face-motion judgment module and a physiological motion judgment module. The technical proposal in the invention can discriminate actual face and picture face, and enhance the reliability of the face recognition system.

Aspects of the of the disclosure relate to a non-contact physiological motion sensor and a monitor device that can incorporate use of the Doppler effect. A continuous wave of electromagnetic radiation can be transmitted toward one or more subjects and the Doppler-shifted received signals can be digitized and / or processed subsequently to extract information related to the cardiopulmonary motion in the one or more subjects. The extracted information can be used, for example, to determine apneic events and / or snoring events and / or to provide apnea or snoring therapy to subjects when used in conjunction with an apnea or snoring therapy device. In addition, methods of use are disclosed for sway cancellation, realization of cessation of breath, integration with multi-parameter patient monitoring systems, providing positive providing patient identification, or any combination thereof.

A method of imaging an object using a medical imaging system is provided. The imaging method acquires a stream of sinogram data. Changes in the stream of sinogram data corresponding to movement of the object are detected. The method selects portions of the stream of sinogram data. An image of the object based on the selected portions of the sinogram data is generated.

A virtual or augmented reality display system that controls a display using control information included with the virtual or augmented reality imagery that is intended to be shown on the display. The control information can be used to specify one of multiple possible display depth planes. The control information can also specify pixel shifts within a given depth plane or between depth planes. The system can also enhance head pose measurements from a sensor by using gain factors which vary based upon the user's head pose position within a physiological range of movement.

A system and method of free-breathing MR imaging saturates an entire navigator profile at the end of an imaging segment of physiological motion cycle, e.g., heart cycle, thereby providing a uniform recovery of longitudinal magnetization for the next imaging cycle. Through use of at least one dephaser gradient following the image acquisition segment and a navigator RF saturation pulse, residual transverse magnetization is dephased and spins within a navigator tracker are saturated to ensure a uniform recovery of longitudinal magnetization for the next imaging period.

Disclosed herein is a new and improved non-invasive bed sensing system for detecting and monitoring physiological movements such as heartbeat and respiration. The system may employ a hydraulic fluid to transduce the physiological pressures to an integrated pressure sensor and a new and improved signal processing method to identify individual cardiac pulses from the electronic signals generated by the hydraulic transducer. The system provides increased sensitivity capable of capturing quantitative pulse and respiration rates with subtle changes, ability to distinguish between instances of low pulse rate and shallow breathing, and improved comfort over existing system.

A method of imaging an object using a medical imaging system is provided. The imaging method acquires a stream of sinogram data. Changes in the stream of sinogram data corresponding to movement of the object are detected. The method selects portions of the stream of sinogram data. An image of the object based on the selected portions of the sinogram data is generated.

A CT imaging system has a rotatable gantry, a table movable fore and aft through an opening defined within the rotatable gantry, and a controller that incrementally moves a subject disposed on the table through a number of discrete data acquisition positions for the acquisition of physiologically gated CT data. The controller also coordinates acquisition of imaging data from the subject at a first data acquisition position within a physiological cycle of the subject and only advances the subject to a next data acquisition position if the imaging data acquired at the first data acquisition position is deemed acceptable. The controller also detects irregularities and physiological motion of the subject and responsive thereto, suspends data acquisition until the irregularity passes, such as, suspending data acquisition until a next cardiac cycle if a heart arrhythmia is detected.

The invention discloses a separable multi-arm soft mechanical arm device, and the device comprises a functional arm part, a fixed general arm part, and a supporting part. The functional arm part and the fixed general arm part are made of human body silica gel materials. The fixed general arm part is connected to the rear end of the functional arm part, and provides strong support for the functional arm part. Moreover, the fixed general arm part and the functional arm part jointly form a mechanical arm body. The supporting part longitudinally passes through the mechanical arm body, is located at the axis of the mechanical arm body, and is used for supporting the mechanical arm body. The device depends on stay wire drive, and the operation mode of line drive is simple and reliable in control. The device is safe and soft, and causes no damage to a human body. Moreover, the flexible structure is elastic, can absorb the vibration caused by the movement of body tissues, and reduces the impact on the maneuverability of an operation device from the physiological motion of a patient during an operation. The device replaces the conventional direct operation, so as to achieve the operation effects of small wound and quick recovery.

A virtual or augmented reality display system that controls a display using control information included with the virtual or augmented reality imagery that is intended to be shown on the display. The control information can be used to specify one of multiple possible display depth planes. The control information can also specify pixel shifts within a given depth plane or between depth planes. The system can also enhance head pose measurements from a sensor by using gain factors which vary based upon the user's head pose position within a physiological range of movement.

Methods and devices provide physiological movement detection with active sound generation. In some versions, a processor may detect breathing and / or gross body motion. The processor may control producing, via a speaker coupled to the processor, a sound signal in a user's vicinity. The processor may control sensing, via a microphone coupled to the processor, a reflected sound signal. This reflected sound signal is a reflection of the sound signal from the user. The processor may process the reflected sound, such as by a demodulation technique. The processor may detect breathing from the processed reflected sound signal. The sound signal may be produced as a series of tone pairs in a frame of slots or as a phase-continuous repeated waveform having changing frequencies (e.g., triangular or ramp sawtooth). Evaluation of detected movement information may determine sleep states or scoring, fatigue indications, subject recognition, chronic disease monitoring / prediction, and other output parameters.

A method for reconstructing images of structures undergoing physiological motion comprises acquiring a first volume of data over a first motion cycle. The first volume comprises a first overlap volume. A second volume of data is acquired over a second motion cycle and comprises a second overlap volume. The first and second overlap volumes comprise like anatomical regions with respect to each other. A reconstructed volume of data is formed based on temporal data within the first and second overlap volumes.

An anatomical shoulder pulley system for use in the rehabilitation of various shoulder conditions. The device provides a means of converting the linear pull of a rope and pulley system into rotary motion that approximates the arc described by anatomical or physiological motion of the shoulder. The device can be adjusted to provide passive or assisted motion in varied planes of shoulder motion such as forward flexion, external or internal rotation or scapular plane shoulder elevation. A door unit section of the device secures the device to a standard door and provides a base for the device. Another section of the device consists of an arced track and associated components. The arced track may be secured to the door unit in varied degrees of rotation. A rope with a handle on one end is routed over a pulley located at the top of the arced track. The other end of the rope is attached to a track rider that can easily move upward and downward within the arced track. A rope and handle are also attached to the track rider. The user grasps both handles. By pulling down on the free end handle, the handle attached to the arced track moves upward along the track assisting a person to move their shoulder in an arc that approximates anatomical or physiological movement.

Aspects of the of the disclosure relate to a non-contact physiological motion sensor and a monitor device that can incorporate use of the Doppler effect. A continuous wave of electromagnetic radiation can be transmitted toward one or more subjects and the Doppler-shifted received signals can be digitized and / or processed subsequently to extract information related to the cardiopulmonary motion in the one or more subjects. The extracted information can be used, for example, to determine apneic events and / or snoring events and / or to provide apnea or snoring therapy to subjects when used in conjunction with an apnea or snoring therapy device. In addition, methods of use are disclosed for sway cancellation, realization of cessation of breath, integration with multi-parameter patient monitoring systems, providing positive providing patient identification, or any combination thereof.

The embodiment of the invention discloses a medical image imaging device,,system and method, equipment and a computer readable storage medium. The method comprises the following steps: acquiring medical image scanning data of a scanned person; acquiring a radar detection signal of the scanned person; acquiring a first image of the scanned person at a first time point and a second image of the scanned person at a second time point in medical image scanning through a camera; and according to the medical image scanning data, performing motion artifact correction by utilizing the radar detection signal, the first image and the second image to obtain a medical image of the scanned person. The posture change is captured by using the camera, the physiological motion information is acquired by using the radar detector, and the motion artifact in the imaging process is corrected while and / or after the medical image scanning data of the scanned person is acquired by using the medical image scanner, so that the medical image without or with less motion artifacts can be obtained.

Various method embodiments of the present invention concern sensing patient-internal pressure measurements indicative of physiological exertion, identifying one or more steady state periods of physiological exertion based on the patient-internal pressure measurements, sensing extra-cardiac response data and cardiac response data corresponding to the one or more physiological exertion steady state periods, respectively comparing the extra-cardiac response data and the cardiac response data to extra-cardiac response information and cardiac response information associated with equivalent levels of physiological exertion intensity of the one or more steady state periods, and determining the likelihood that myocardial ischemia occurred during the one or more steady state periods based on the comparison of the extra-cardiac response data to the extra-cardiac response information and the cardiac response data to the cardiac response information.

The present invention teaches a method and apparatus for providing and preserving kinematically correct spinal movement as well as enhanced bone fusion. The design of implanted and other devices fabricated from at least one of metal, ceramic, plastic, shape memory alloy, and other material is taught for facilitating approximately physiologic kinematics for intervertebral body movement as well as for enhanced fusion of vertebral bodies and components therein. Surgical tools and techniques for implantation of these devices made from a variety of materials are also taught.

The invention provides a pronunciation method of a three-dimensional visual Chinese mandarin pronunciation dictionary with pronunciation being rich in emotion expression ability and relates to the technical field of voice visualization, language teaching, vocal organ animation and facial animation. The method produces the vocal organ animation and produces the facial animation with vivid expressions at the same time. The method has the advantages that based on truly-captured motion data, a physiology motion mechanism of vocal organs and a harden markov model, the built vocal organ animation has coordination and consistency related to the facial animation, and coarticulation phenomena in continuous voice animation can be completely described; data driving models are embedded into physiology models by the utilization of advantages of the physiology models and advantages of the data driving models on describing face partial detail features and reality sense aspects, and the facial animation with high reality sense is generated. An objective performance test and a subjective performance test to a system verify the effectiveness of the pronunciation method in the aspect of intelligent auxiliary language teaching.

A method for reconstructing images of structures undergoing physiological motion comprises acquiring a first volume of data over a first motion cycle. The first volume comprises a first overlap volume. A second volume of data is acquired over a second motion cycle and comprises a second overlap volume. The first and second overlap volumes comprise like anatomical regions with respect to each other. A reconstructed volume of data is formed based on temporal data within the first and second overlap volumes.