Intravascular systems can include a catheter having a proximal end, a distal end, a sensor located at the distal end configured to provide sensor information representative of one or more intravascular properties of a patient, and a plurality of magnetic domains. A magnetic pickup can be configured to output a pickup signal based on the magnetic field at the magnetic pickup produced by the plurality of magnetic domains. An intravascular processing engine can be in communication with the catheter sensor and the magnetic pickup. The intravascular processing engine can receive sensor information from the sensor and a position signal representative of the pickup signal. The intravascular processing engine can be used to determine position information related to the position of the catheter sensor and combine the received sensor information and corresponding determined position information.

The present disclosure describes systems, apparatus, and methods for collecting biometric data from a patient. In some cases, this biometric data can be collected during the course of an emergency encounter using a medical device. The medical device can also perform other functions, such as monitor patient vital signs, receive and record notes and textual information, communicate with other devices, and/or deliver a therapeutic treatment. The medical device can also be configured to record and/or maintain a patient record, and to embed the patient biometric data into the patient record for use in later confirming and/or determining an identity of the patient. Some embodiments can also collect biometric data relating to one or more caregivers of the patient, and to embed the caregiver biometric data into the patient record. This caregiver biometric data can be used to confirm and/or identify one or more caregivers in a patient record.

A portable ultrasound probe is described having a mechanical transducer, rotating mirror, and mirror motor. The transducer can be used for diagnostic imaging and procedural guidance imaging. The probe has a light weight design for easy one-handed use, and can use external processors to provide proper image display with accompanying software

An elasticity imaging method, device, and storage medium are provided. The method includes: transmitting an ultrasound wave to a target tissue; receiving an ultrasound echo of the ultrasound wave returned from the target tissue; obtaining an interference characteristic information representing the degree of interference to the target tissue; and when the interference characteristic information does not meet a preset condition, stopping determining an elasticity image of the target tissue according to the ultrasound echo.

Described herein are methods and apparatuses for packaging an ultrasound-on-a-chip. An ultrasound-on-a-chip may be coupled to a redistribution layer and to an interposer layer. Encapsulation may encapsulate the ultrasound-on-a-chip device and first metal pillars may extend through the encapsulation and electrically couple to the redistribution layer. Second metal pillars may extend through the interposer layer. The interposer layer may include aluminum nitride. The first metal pillars may be electrically coupled to the second metal pillars. A printed circuit board may be coupled to the interposer layer.

When a polymer gel has excellent mechanical strength and an ability to maintain surface wetness for a longer time, the polymer gel may be very widely applied to a variety of fields. The present disclosure provides example embodiments of a polymer gel having excellent mechanical strength and an ability to maintain surface wetness for a longer time. Further, the present disclosure provides example embodiments of a method of preparing the polymer gel.

A method for adjusting orthosis (200), comprising following steps: S1. by means of a detection window (101) on the orthosis, obtaining, by an ultrasound probe, a series of two-dimensional images and corresponding spatial position and angle information of human body-related parts needing to be corrected; S2. performing image reconstruction on the basis of the obtained series of two-dimensional images having spatial positioning information to obtain three-dimensional images and images on sections; S3. determining, according to information about skeletons on the two-dimensional or three-dimensional images, whether the adjustment provided by the orthosis (200) is correct; S4. adjusting the orthosis (200) according to the result in step S3. According to the method, the three-dimensional imaging of a skeletal system can be implemented without radiation, so that the evaluation of the correction result can be facilitated, and the orthosis (200) is adjusted to achieve the optimal adjustment or fixing effect.

Ultrasound devices and systems are disclosed in which cooling of an active acoustic element of an ultrasound transducer is achieved via an electrically conductive member that extends beyond a proximal side of the active acoustic element to contact a heat exchanger. The electrically conductive member delivers electrical driving signals to the active acoustic element while conducting heat to the heat exchanger. A region of the proximal surface of the active acoustic element that is free from contact with the electrically conductive member may also absent from contact with a liquid or a solid, thereby facilitating reflection of ultrasound energy. The heat exchanger may include an electrically insulating fluid that contacts the electrically conductive member to remove the heat conducted through the electrically conductive member. The active acoustic element may be a multilayer lateral mode element, and the electrically conductive member may form an electrode of the lateral mode element.

A sensor (10) comprises a waveguide (20) having a longitudinal axis and an end face (21), the waveguide (20) comprising a Bragg grating (23). The sensor comprises at least one reflector (24) on the end face (21) of the waveguide (20). An optical resonator (25) is formed by the Bragg grating (23), the at least one reflector (24), and an inner portion of the optical resonator (25) between the Bragg grating (23) and the at least one reflector (24). The inner portion of the optical resonator (25) extends within a portion of the waveguide (20). The sensor (10) comprises a detector (32) configured to detect at least one spectral characteristic of the optical resonator (25) or a change of at least one spectral characteristic of the optical resonator (25).

Parametric model based computer implemented methods for determining the stiffness of a bone, systems for estimating h the stiffness of a bone in vivo, and methods for determining the stiffness of a bone. The computer implemented methods include determining a complex compliance frequency response function Y(f) and an associated complex stiffness frequency response function H(f) and independently fitting a parametric mathematical model to Y(f) and to H(f), and using a first measure of conformity and a second measure of conformity of the collected data to determine accuracy and repeatability of measurements. The systems include a device for measuring the stiffness of the bone in vivo and a data analyzer to determine a complex compliance frequency response function Y(f) and an associated complex stiffness frequency response function H(f).