A bio-information estimating apparatus includes a sensor part configured to measure a pulse wave signal from an object, a contact force that is applied by the object to the sensor part, and a contact area of the object that is applied to the sensor part, and a processor configured to obtain a first feature value, based on a first change in the contact area with respect to a second change in the contact force, obtain a second feature value, based on the pulse wave signal, and estimate bio-information, based on the first feature value and the second feature value.

A device and method for detecting, documenting, measuring and mapping the size, shape and location of lesions underlying the surface of the skin or other soft tissue in a subject by measuring variations in the tactile pressure of the skin or other tissue surface being investigated through the use of a capacitive tactile sensor is described. A capacitive tactile sensor comprises at least one exposure window, a substrate comprising a plurality of electrodes disposed within the housing, an insulating layer, a non-conductive compressible membrane and covering positioned over the insulating layer wherein at least a portion of the membrane is accessible via the exposure window, and a controller configured to calculate at least one parameter of a tissue of a subject. A method of measuring a tissue parameter in a subject and a method of performing a self-guided examination on a tissue of a subject are also described.

An acoustic otoscope generates volume change excitations of either a trapezoidal or sinusoidal waveforms which are coupled into a sealed ear canal using a speculum tip. The change in volume results in a pressure change, for which a pressure measurement is taken during the volume change excitation interval. In one example, a trapezoidal time-domain volume change is presented, and a pressure measurement waveform is stored, the pressure measurement waveform thereafter examined to find a change of slope point in time, after which the pressure measurement waveform is scaled to be equal to the volume change waveform at that same point in time, a difference between scaled pressure measurement and volume excitation is formed, and examined for peak value prior to the earlier determined change in slope point in time.

A CPR feedback system for assessing CPR carried out by a person on a subject and providing CPR feedback to the person, including an ECG system, a biosignal system, a CPR assessment system, and a CPR feedback unit. The CPR assessment system is configured to perform the steps (i) establish a reference ECG signal metric and a target biosignal metric, (ii) produce a CPR feedback signal, (iii) receive ECG signals measured during a plurality of chest compressions and use the ECG signals to establish a current ECG signal metric, (iv) receive biosignals and use the biosignals to establish a current biosignal metric, (v) compare the current ECG signal metric with the reference ECG signal metric and compare the current biosignal metric with the target biosignal metric, (vi) when the current ECG signal metric is less than the reference ECG signal metric and the current biosignal metric is less than the target biosignal metric, produce a CPR feedback signal, (vii) when the current ECG signal metric is less than the reference ECG signal metric and the current biosignal metric is equal to or greater than the target biosignal metric, increase the target biosignal metric and produce a CPR feedback signal advising the person to improve CPR performance, (viii) when the current ECG signal metric is equal to or greater than the reference ECG signal metric, set the reference ECG signal metric equal to the current ECG signal metric and produce a CPR feedback signal advising the person to maintain current CPR performance.

Disclosed is an apparatus for determining viscoelastic characteristics of at least a portion of an object. The apparatus comprises a fluidly sealable housing, comprising at least one aperture and at least one fluid inlet port and at least one resilient membrane that is operatively coupled to the housing so as to sealingly engage with the at least one aperture. The apparatus further comprises at least one actuator that is operatively coupled to the at least one inlet port and adapted to actuate the at least one resilient membrane via a working fluid that is contained within the housing, so that the at least one resilient membrane is moved towards and into engagement with at least a portion of an object at a predetermined pressure. Furthermore, the apparatus comprises at least one first sensor that is operably coupled to the membrane and that is adapted to determine at least a deformation of the at least one resilient membrane during actuation.

A pressure monitoring system and method for warning a patient or caregiver that soft tissue pressure has exceeded some predetermined level that over time would necessitate moving the patient to prevent or at least reduce a risk of soft tissue damage. The pressure monitoring system and method utilize a dressing assembly adapted to be applied to or near a surface of the patient's body and generate electrical outputs corresponding to soft tissue pressure sensed at the surface. The dressing assembly includes a pocket formed therein for removable, secured and protected insertion of one or more sensors.

The objective of the present invention is to provide a hardness meter which estimates hardness in a stable manner regardless of a compression strength. A hardness meter includes: a movable portion which is continuously pressed against an object to be measured; a sensor which outputs an output signal reflecting a reaction force at a part of the object to be measured; a motive force mechanism that causes the movable portion to perform a piston motion; a hardness estimating portion which estimates the hardness of the object on the basis of an alternating current component of the output signal, generated by the piston motion; a position estimating portion which estimates a measurement position information by shooting with a camera; and a hardness map display portion which maps and displays the hardness on a schematic diagram of the surface of a living body based on the measurement position information.

The present invention relates to an intra-oral bite device for use with an x-ray recording apparatus for recording the image of at least one oral area of a patient, located by the intra-oral bite device.

A system for measuring a pressure in a vein includes a needle sized and shaped to be inserted through a working channel of an endoscope. The needle is extending longitudinally and including a channel extending longitudinally therethrough. The system also includes a pressure sensing device including a longitudinally extending body sized and shaped to be slidably inserted through the channel of the needle and a sensor mounted on a distal portion of the body and connected to a proximal portion of the pressure sensing device via a connection cable. The sensor is configured to detect information corresponding to a pressure of a flow of blood through a vein.

The present invention provides a biofluid sensing device capable of concentrating a biofluid sample with respect to a target analyte, so that the analyte can be accurately detected or measured by EAB sensors. Methods for using such a device provide qualitative information about the presence of the analyte, and/or quantitative information about relative concentrations of the analyte in the biofluid. The disclosed device includes a concentration channel for concentrating the biofluid sample, as well as a selectively permeable membrane, one or more EAB sensors, and one or more secondary sensors carried on a water-impermeable substrate. A method for using the disclosed device to collect a biofluid sample, concentrate the sample relative to a target analyte, and measure the target analyte is also disclosed.