A strap-based wearable device for measuring a physiological parameter of a user. A sensor arrangement is used to convey information about the physiological parameter of the user. The tightness of the strap arrangement is controlled automatically in response to the quality of the sensor signals.

The present invention relates to a wearable device for acquiring physiological information of a subject. To combine the advantages of a contact sensor and a contactless sensor, the wearable device comprises an optical emitter (10) for emitting light into the subject's skin, an optical sensor (20) for receiving light scattered back from the subject's skin in response to the emission of light into the subject's skin, the received light representing or allowing the derivation of physiological information of the subject, and a carrier (30) for being held at the subject's skin and for carrying said emitter (10) and said sensor (20) such that a light receiving area (12), at which the emitted light enters the subject's skin, substantially corresponds to a light reflecting area (22), at which at least part of the scattered light leaves the subject's skin and is received by said optical sensor, the optical sensor (20) is arranged between the optical emitter (10) and the light receiving area (12) and is at least partially transparent for the light emitted by the optical emitter or the optical emitter (10) is arranged between the optical sensor (20) and the light reflecting area (22) and is at least partially transparent for the light reflected from the light reflecting area.

Methods, systems, and kits are disclosed for facilitating physiological benefit in using activities with a reduced oxygen as an added catalyst during inactive periods. Substantial physiological benefits exist in the realm of muscular force output whereby reduced oxygen is inspired by a subject during the inactive periods of activities.

The present invention provides a range of motion measurement device using electroactive polymer (EAP) sensors to derive digital measurement angles. The EAP sensors may be attached to a stationary arm and rotating arm of the range of motion measurement device to detect a percentage stretched of the EAP sensors after measuring movement is performed. The percentage stretched of the EAP sensors based upon the law of cosines may be used with a transfer function in order to determine the range of motion angle of the joint.

A handheld device measures all vital signs and some hemodynamic parameters from the human body and transmits measured information wirelessly to a web-based system, where the information can be analyzed by a clinician to help diagnose a patient. The system utilizes our discovery that bio-impedance signals used to determine vital signs and hemodynamic parameters can be measured over a conduction pathway extending from the patient's wrist to a location on their thoracic cavity, e.g. their chest or navel. The device's form factor can include re-usable electrode materials to reduce costs. Measurements made by the handheld device, which use the belly button as a fiducial marker, facilitate consistent, daily measurements, thereby reducing positioning errors that reduce accuracy of standard impedance measurements. In this and other ways, the handheld device provides an effective tool for characterizing patients with chronic diseases, such as heart failure, renal disease, and hypertension.

The embodiments described herein relate generally to medical devices that measure vital signs, and more particularly to wearable wireless devices that collect multiple simultaneous vital signs, and systems and methods for compressing the sensor data into a matrix representation to facilitate collecting, transmitting, processing, and displaying vital sign data.

System, methods and computer-readable media are provided for facilitating decision support by assessing the severity of injuries and the acute risk of physiologic deterioration and short-term mortality in trauma patients, both on the scene where emergency medical personnel initially evaluate and treat trauma victims and while in-transit to receive care at a health care facility. Embodiments of the invention provide a quantitative numerical score and calculated probabilities of deterioration and/or mortality, based on multi-variable statistical regressions. In some embodiments, fuzzy-set mathematics are employed in the regressions to account for physiologic and epistemologic uncertainty that are inherent in one or more emergency personnel members' observations and recordings of a plurality of measurements periodically during the time on-scene and during transit. Embodiments also enable the prediction of the other outcomes of trauma patients, such as the intensity of care that will likely be required prior to hospital arrival.

Methods, devices, systems, and kits are provided that buffer the time spaced glucose signals in a memory, and when a request for real time glucose level information is detected, transmit the buffered glucose signals and real time monitored glucose level information to a remotely located device, process a subset of the received glucose signals to identify a predetermined number of consecutive glucose data points indicating an adverse condition such as an impending hypoglycemic condition, confirm the adverse condition based on comparison of the predetermined number of consecutive glucose data points to a stored glucose data profile associated with the adverse condition, where confirming the adverse condition includes generating a notification signal when the impending hypoglycemic condition is confirmed, and activate a radio frequency (RF) communication module to wirelessly transmit the generated notification signal to the remotely located device only when the notification signal is generated.

A method for identifying human joint characteristics, the method including the steps of: using a mobile imaging device, taking at least one image of the joint, and then identifying a joint pain location by identifying three different locations in the image near the joint, so that a center point between the locations can be triangulated.

A method for identifying human joint characteristics, the method including the steps of: placing an item with a known characteristic near the joint, using a mobile imaging device, taking at least one image of the joint, and using the image and the known characteristic of the item to determine a joint characteristic of the joint.