A system and method for monitoring a health status of a subject. The system comprises: a medical device implantable in the subject and having a passage or compartment through which blood flows through; a sensor device embedded at or near a surface of said passage within said medical device for generating signals suitable for measuring a Doppler shift effect occurring within said passage; and a control device coupled to said sensor device for measuring a liquid blood flow rate within said passage based on sensor generated signals outputs. The embedded sensor device comprises a first piezo-electric element configured to generate an acoustic excitation signal and a second piezo-electric element configured to receive said acoustic excitation signal. The second piezo-electric element emits a signal responsive to said acoustic excitation signal. Control device in real time compares a generated output signal with the input excitation signal to determine a Doppler frequency shift measurement.

An integrated device of a patch and sensor assembly detects extravasation or infiltration. A transmitter is positioned to direct power into a body portion. A sensor is positioned to receive the power transmitted through the body portion. A substrate is attachable to an outer surface of the body portion and supports the transmitter and the sensor. A signal processor is coupled to the transmitter and the sensor for detecting a change in a fluid level in the body portion from extravasation or infiltration based on the power received by the sensor. A power supply is coupled to the transmitter and the sensor. An indicator is responsive to the signal processor to indicate a detected change in a fluid level in the body portion from extravasation or infiltration.

A sonar-based contactless monitoring system comprises a sonar system (308), a contactless sensing assembly (310), and a controller (302) configured to read out measurements transmitted by the sonar system and the contactless sensing assembly and calculate posture and activity of a subject. The sonar system may include a microphone (314) and a speaker (316), wherein the microphone is configured to sense a first acoustic signal in a frequency range associated with the sound and/or motion made by the subject, and a second acoustic signal in a frequency range associated with the reflection of an acoustic signal transmitted by the speaker. The contactless sensing assembly senses at least one of vital and environmental conditions, such as a heart rate, respiratory rate, activity, snoring, subject's position, and subject's movement, or noise level, weather condition, light exposure, time and radiation level.

The present application describes a musculoskeletal diagnosis system that receives, in real-time or substantially real-time, various objects from a musculoskeletal ultrasound probe. Once the objects are received, the musculoskeletal diagnosis system analyzes the various objects to detect various pathologies and direct additional movement of the ultrasound probe as subsequent objects are taken.

A delivery device for tissue anchor delivery is provided. The delivery device includes a first flexible tube having a rigid distal portion attachable to a tissue anchor, a second flexible tube coaxially disposed around the first tube and a tubular sheath covering the second flexible tube. Also provided is a system which includes an imaging device coupler reversibly attached to the delivery device through guides.

An ultrasonic imaging device includes an ultrasonic generating unit and an ultrasonic imaging processing unit. The ultrasonic generating unit repeatedly turns on N of M ultrasonic array elements of the ultrasonic probe multiple times as a group of array elements for linear scanning, and each scan is to emit an ultrasonic signal by each group of array elements and receive an echo signal of the ultrasonic signal. The ultrasonic imaging processing unit extracts a central echo signal from the echo signal in each scan to form a channel signal, and according to the arrival time of the echo signals, each central echo signal in the channel signal is delayed and summed to generate a modified channel signal. The modified channel signal is subjected to image synthesis process to obtain an ultrasonic image.

A combination of an ultrasonic scanner and an omnidirectional receive transducer for producing a two-dimensional image from received echoes is described. Two-dimensional images with different noise components can be constructed from the echoes received by additional transducers. These can be combined to produce images with better signal to noise ratios and lateral resolution. Also disclosed is a method based on information content to compensate for the different delays for different paths through intervening tissue is described. The disclosed techniques have broad application in medical imaging but are ideally suited to multi-aperture cardiac imaging using two or more intercostal spaces. Since lateral resolution is determined primarily by the aperture defined by the end elements, it is not necessary to fill the entire aperture with equally spaced elements. Multiple slices using these methods can be combined to form three-dimensional images.

A method for determining a geometry of an ear canal or a portion of an ear of a person may include filling the ear canal and/or the portion of the ear with a liquid or a gel, inserting a capacitive micromachined ultrasonic transducer probe or a piezoelectric micromachined ultrasonic transducer probe, acquiring data using the probe, and processing the acquired data to obtain a 2D or 3D image of the ear canal and/or the portion of the ear.

An embodiment of the invention may include a method, computer program product and system for analyzing cardiac function of a patient. An embodiment may include receiving a plurality of digital image representations of cardiac function at rest. An embodiment may include receiving a plurality of digital image representations of cardiac function at stress. An embodiment may include selecting a digital image representation of cardiac function at rest and a corresponding digital image representation of cardiac function at stress. An embodiment may include aligning the selected representation of cardiac function at rest with the selected corresponding representation of cardiac function at stress. An embodiment may include identifying a difference between the selected representation of cardiac function at rest and the selected corresponding representation of cardiac function at stress based on a displayed overlay of the aligned representations.

The invention relates to a molded gel body (1), the production thereof and the use thereof in ultrasonography in the medical or dental field. In particular, the molded gel body (1) is used to detect and localize dental cavities in the jawbone by means of through-transmission alveolar ultrasonography (TAU). The molded gel body (1) has a receptacle (2) for receiving an ultrasound transmitter and/or receiver (7). The molded gel body (1) and the receptacle (2) are preferably adapted to the shape of the ultrasound transmitter and/or receiver. For easier handling, the molded gel body (1) is inserted into a flexible, biocompatible protective cover (6) which, like the receptacle (2), can be filled with a non-dimensionally stable ultrasound gel. To produce the molded gel body (1), cuboids of a dimensionally stable gel of the appropriate size are preferably cut open over the narrow lateral surfaces of the cuboid, but preferably not completely cut through and only over three of the four sides to produce the receptacle (2) or, if not completely cut open, closed or glued on the edges only over two of the four sides.