An apparatus and method for obtaining a physiological measurement associated with a user using a portable device is disclosed herein. Information displayed on a touch-sensitive display of the portable device specifies the contact area(s) on the portable device for a user to touch. One or more areas on the portable device and/or a detachable device connected to the portable device comprise conductive areas for measuring the resistance or impedance of the user's body between those conductive areas.

Obtaining physiological measurements using a portable device

A guidance system for assisting with the insertion of a needle into a patient body is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the sensed characteristic to determine a 3-D position of the needle. The system includes a display for depicting the position of the needle. In other embodiments, a guidance system for guiding rigid or other medical instruments is disclosed, together with various example implementations thereof.

Systems and methods for guiding a medical instrument

A guidance system for assisting with the insertion of a needle into a patient body is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the sensed characteristic to determine a 3-D position of the needle. The system includes a display for depicting the position of the needle. The needle can include a donut-shaped magnet disposed about the needle cannula, or a removable stylet with a magnetic element and a strain gauge for detection of the needle distal tip.

Apparatus for Use with Needle Insertion Guidance System

Devices and methods for obtaining and using endovascular electrograms in a number of clinical applications and settings are disclosed. In one embodiment, methods are disclosed for triggering analysis of an endovascular ECG waveform based on the detection of a peak in a skin-based ECG waveform in order to determine a location of an indwelling medical device, such as a catheter. In another embodiment, the position of a catheter or other medical device within the vasculature can be determined by analysis of the energy profile of a detected P-wave. In yet other embodiments, magnetic connecting devices for establishing an operable connection through a sterile field are disclosed.

Apparatus and method for catheter navigation and tip location

A guidance system for assisting with the insertion of a needle or other medical component into the body of a patient is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the detectable characteristic sensed by the sensors to determine a position and/or orientation of the needle in three spatial dimensions. The system includes a display for depicting the position and/or orientation of the needle together with the image of the target.

Insertion guidance system for needles and medical components

A wireless fetal and maternal monitoring system includes a fetal sensor unit adapted to receive signals indicative of a fetal heartbeat, the sensor optionally utilizing a Doppler ultrasound sensor. A short-range transmission unit sends the signals indicative of fetal heartbeat to a gateway unit, either directly or via an auxiliary communications unit, in which case the electrical coupling between the short-range transmission unit and the auxiliary communications unit is via a wired connection. The system includes a contraction actuator actuatable upon a maternal uterine contraction, which optionally is a EMG sensor. A gateway device provides for data visualization and data securitization. The gateway device provides for remote transmission of information through a data communication network. A server adapted to receive the information from the gateway device serves to store and process the data, and an interface system to permits remote patient monitoring.

Wireless fetal monitoring system

A system provides for mobile medical instrumentation for use with a body. The system includes a primary wireless communication device, such as a cell phone or tablet computer, and one or more cradles. The cradles provide an interface to the body which provides for input of signals from the body, and optionally, therapeutic outputs to the body. The cradle and the primary wireless communication device may be releasably joined together so as to form a unitary structure when contacting the body. Alternately, the cradle may interface with the body, and communicate wirelessly to the primary wireless communication device. A cradle adapted to provide for a portable electrocardiogram includes a plurality of electrodes adapted for contact or non-contact sensing of the body. In the preferred embodiment, three electrodes are arranged in a triangular arrangement, most preferably a Einthoven triangular arrangement, with the distance between electrodes being 4 centimeters or less.

Multipurpose, modular platform for mobile medical instrumentation

A wireless and mobile system for concurrent non-invasive monitoring of fetal heart rate and uterine contractions is described. The end-to-end system consists of a wearable Doppler ultrasound and pressure sensing front-end equipped with short range radio, mobile cellular gateway for wide area communication, web server, and browser based user interface for remote monitoring and diagnostics. The system has been fully implemented, tested and characterized in benchtop tests. It has also been used to monitor pregnant women during feasibility trials in a clinical setup. In vivo experiments measuring heart rate and contraction using the system in parallel with a standard fetal monitoring device yielded concordance correlation coefficients of 88% and 94%, respectively.

Mehran Mehregany

Papers

Wireless fetal monitoring system

Multipurpose, modular platform for mobile medical instrumentation

A mobile wearable wireless fetal heart monitoring system

Opportunities and Obstacles in the Adoption of mHealth