Describes a measurement, calculation or setting capability of a medical device.

For the initial scope, this The DeviceMetric resource is only applicable to describe a single metric node in the containment tree that is produced by the context scanner in any medical device that implements or derives derived from the ISO/IEEE 11073 standard. 11073-10201 Domain Information Model standard, but is more widely applicable.

Unique instance Instance identifiers assigned to a device device, by the device or gateway software, manufacturers, other organizations or owners. For example: example, handle ID.

For identifiers assigned to a device by the device or gateway software, the system element of the identifier should be set to the unique any identifier of the device.

Describes the type Indicates current state of the metric. For example: Heart Rate, PEEP Setting, etc. record.

DeviceMetric.type can be referred to either IEEE 11073-10101 or LOINC. Unknown does not represent "other" - one of the defined statuses must apply. Unknown is used when the authoring system is not sure what the current status is.

Describes Indicates current operational state of the unit that an observed value determined for this metric will have. device. For example: Percent, Seconds, On, Off, Standby, etc.

DeviceMetric.unit Indicates the category of the observation generation process. A DeviceMetric can refer to either UCUM or preferable be, for example, a RTMMS coding system. setting, measurement, or calculation.

Describes the link to type of the Device that this DeviceMetric belongs to and that contains administrative device information such as manufacturer, serial number, metric. For example: Heart Rate, PEEP Setting, etc.

DeviceMetric.type can be referred to either IEEE 11073-10101 or LOINC.

Describes the link to the Device that this DeviceMetric belongs The device to and that provide information about the location of which this DeviceMetric in the containment structure of the parent Device. An example would applies. The referenced device could be a Device that represents top-level device or a Channel. This reference can be used by component of a client application to distinguish DeviceMetrics that have the same type, but should be interpreted based on their containment location. device.

If the reference is not to a top-level device, the top-level device is reached through the device's parent element (possibly recursively).

Indicates current operational state of Describes the device. unit that an observed value determined for this metric will have. For example: On, Off, Standby, Percent, Seconds, etc.

DeviceMetric.unit can refer to either UCUM or preferably an RTMMS coding system.

Describes the The preferred color representation for associated with the metric. metric (e.g., display color). This is often used to aid clinicians to track and identify parameter types by color. In practice, consider a Patient Monitor that has ECG/HR and Pleth for example; Pleth; the parameters metrics are displayed in different characteristic colors, such as HR-blue, BP-green, HR in blue, BP in green, and PR and SpO2- SpO2 in magenta.

Indicates The frequency at which the category metric is taken or recorded. Devices measure metrics at a wide range of frequencies; for example, an ECG might sample measurements in the observation generation process. A DeviceMetric can be millisecond range, while an NIBP might trigger only once an hour. Less often, the measurementFrequency is based on a unit other than time, such as distance (e.g., for example a setting, measurement, or calculation. measuring wheel). The update period could be different than the measurement frequency, if the device does not update the published observed value with the same frequency as it was measured.

Describes Indicates whether the measurement repetition time. This metric is not necessarily the same as the update period. The measurement repetition time can range from milliseconds up to hours. An example for derived (measured) by a measurement repetition time in the range of milliseconds is the sampling rate of continuous means or by an ECG. An example for a measurement repetition time in the range of hours is a NIBP that is triggered automatically every hour. intermittent means.

For example, a gauge on a pressurized vessel showing current pressure is a continuous measurement, while a thermometer that produces readings on demand is an intermittent measurement. Note that metric availability is typically a static characteristic and is distinct from the operational status.

Describes the calibrations that have been performed or that are required to be performed.

Describes the type of the calibration method.

Describes the state of the calibration.

Describes the time last calibration has been performed.