In an example, a method of detecting cyanide exposure of an individual includes: measuring a thiocyanate level of the individual which includes placing saliva of the individual in contact with a chemical indicator to measure the thiocyanate level and measuring thiocyanate (SCN.sup.−) catalyzed by enzyme rhodanese of the individual; comparing the measured thiocyanate level to a preset thiocyanate threshold to determine whether the measured thiocyanate level is above the preset thiocyanate threshold indicating a level of cyanide poisoning for which a medical procedure is recommended to manage health effects of the exposure; and performing the medical procedure if the measured thiocyanate level is above the preset thiocyanate threshold and not performing the medical procedure if the measured thiocyanate level is not above the preset thiocyanate threshold.

An insert for a holding device for reliably and accurately assessing a small volume of blood in a fluid, such as in a volume of surgical fluid collected during a surgical procedure, is provided. The insert may include a circular shelf having an outside perimeter configured to fit up against an inside perimeter of a holding device. The insert may include a center opening. The insert may include a conically-shaped collection cone disposed in the center opening. The collection cone may include a length, an interior surface comprising a red blood cell flocculant coating, a gradually decreasing perimeter terminating in a bottom apex, and a series of graduated volumetric markings along the length of the collection cone.

The invention discloses a glycosuria measurement device, comprising a prism body and a housing. The prism body comprises a first accommodating space, a junction surface, a first light penetrating surface, a second light penetrating surface, a third light penetrating surface and a light-emitting surface. The first accommodating space accommodates urine. The junction surface is formed at a bottom surface of the first accommodating space. The first light penetrating surface is formed at the first lateral surface of the first accommodating space. The second light penetrating surface is formed at the second lateral surface of the first accommodating space. The third light penetrating surface is disposed opposite to the junction surface. The light-emitting surface is disposed opposite to the junction surface. The housing comprises a second accommodating space, a first light-emitting port and a second light-emitting port. The second accommodating space accommodates the prism body.

A method for using saliva to measure at least one substance or physiological parameter of a human or animal subject may involve inserting a first end of a sensor into a handheld saliva testing device. The method may also involve receiving saliva from the subject on a second end of the sensor, moving the saliva from the second end of the sensor to the first end, and processing the saliva with the handheld saliva testing device to provide initial saliva data related to the at least one substance or physiological parameter of the subject. In some embodiments, the sensor remains inserted in the handheld device while the subject deposits saliva on the opposite, free end of the sensor.

A urinary catheter can be retained inside the body for extended periods. A catheter mating device can connect to the catheter to move the catheter inside of the body or remove it from the body. The catheter includes: (1) a tube having a lumen and an outer surface, (2) a retainer that may have an attachment portion attached to the tube and a flap or handle-shaped structure attached to the attachment portion, wherein the retainer has a first, contracted position and a second, extended position, and (3) an bladder retention structure at the catheter's distal end, wherein the bladder retention portion may comprise a flap or a handle-shaped portion and that has a first, compressed position and a second, extended position. The retainer and/or bladder retention structure each are configured to retain the catheter in the proper position inside of a user's body.

Provided is a stress measurement system and a stress measurement method that are capable of measuring the stress level of a subject without taking time and effort. A stress measurement system 1 includes a sensor unit 31 that detects a plurality of detection target gases based on substances contained in a specimen of a subject and outputs a plurality of detection values corresponding to respective detection results of the plurality of detection target gases, and a control unit that determines a stress level of the subject, based on a combination of the plurality of detection values. In addition, the substances contained in the specimen may include a substance serving as a raw material for a brain neurotransmitter.

The present invention relates to a body fluid observation device which enables observation of a user's body fluid. A body fluid observation device according to an example of the present invention comprises: a chamber which has a length in a first horizontal direction and in which a body fluid of a user is stably placed; and a body into which the chamber is inserted for observation of the body fluid. The body comprises: a case including a chamber insertion hole which is formed through the front surface of the body and into which the chamber is inserted, a guide partition wall extending from the chamber insertion hole in the first horizontal direction to guide the chamber, and an observation hole provided through the bottom surface of the body to allow observation of the body fluid; a light source part which is positioned above the chamber in the case and emits light; and an operation part electrically connected to the light source part to operate the light source part, wherein, as the chamber is inserted into the chamber insertion hole, the operation part can form an electrically closed loop for operating the light source part.

Systems, apparatuses, and methods for detecting and quantifying a fluid are described herein. In some examples, a sensor apparatus is used to absorb discharged fluid (or other fluid present). The sensor apparatus includes one or more sensors designed to provide a capacitance measurement using electrodes in the sensors and one or more fluid properties sensors that determine at least one fluid property of an absorbed fluid. The electrodes are designed using mirror image axes of deformation to minimize the effect of deformation caused by the wearer of the sensor while still allowing some degree of flexibility for comfort. The person wearing one or more of the sensors may be monitored and cared for remotely using a communication system between the local device and a remote device used by a caregiver or medical practitioner.

The invention relates to a method of detecting symptoms of peritonitis, wherein the method comprises the following steps: taking a photo of a drainage solution and/or of a catheter exit site using a smartphone and/or inputting at least one query parameter which is input by a patient through the input zone of a smartphone; and, evaluating the photo and/or the query parameter.

A contact lens according to an embodiment of the present disclosure includes a lens unit to be placed on an eyeball and a mesh-like or meandering linear communication electrode provided in all or a portion of the lens unit.