FHIR Release 3 (STU) 4

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Health Care Devices Work Group Maturity Level : 1   Trial Use Security Category : Anonymous Compartments : Device Not linked to any defined compartments

Detailed Descriptions for the elements in the DeviceMetric resource.

DeviceMetric
Element Id DeviceMetric
Definition

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

Control Cardinality 1..1 0..*
Type DomainResource
Summary true
Comments

For the initial scope, this 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 from the ISO/IEEE 11073 standard.

DeviceMetric.identifier
Element Id DeviceMetric.identifier
Definition

Describes the unique identification of this metric that has been Unique instance identifiers assigned to a device by the device or gateway software. software, manufacturers, other organizations or owners. For example: handle ID. It should be noted that in order to make the identifier unique, the system element of the identifier should be set to the unique identifier of the device.

Note This is a business identifer, identifier, not a resource identifier (see discussion )
Control Cardinality 1..1 0..*
Type Identifier
Summary true
Comments

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

DeviceMetric.type
Element Id DeviceMetric.type
Definition

Describes the type of the metric. For example: Heart Rate, PEEP Setting, etc.

Control Cardinality 1..1
Terminology Binding Device Metric and Component Types ( Preferred )
Type CodeableConcept
Summary true
Comments

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

DeviceMetric.unit
Element Id DeviceMetric.unit
Definition

Describes the unit that an observed value determined for this metric will have. For example: Percent, Seconds, etc.

Control Cardinality 0..1
Terminology Binding Device Metric and Component Types ( Preferred )
Type CodeableConcept
Summary true
Comments

DeviceMetric.unit can refer to either UCUM or preferable a RTMMS coding system.

DeviceMetric.source
Element Id DeviceMetric.source
Definition

Describes the link to the Device that this DeviceMetric belongs to and that contains administrative device information such as manufacturer, serial number, etc.

Control Cardinality 0..1
Type Reference ( Device )
Summary true
DeviceMetric.parent
Element Id DeviceMetric.parent
Definition

Describes the link to the DeviceComponent Device that this DeviceMetric belongs to and that provide information about the location of this DeviceMetric in the containment structure of the parent Device. An example would be a DeviceComponent Device that represents a Channel. This reference can be used by a client application to distinguish DeviceMetrics that have the same type, but should be interpreted based on their containment location.

Control Cardinality 0..1
Type Reference ( DeviceComponent Device )
Summary true
DeviceMetric.operationalStatus
Element Id DeviceMetric.operationalStatus
Definition

Indicates current operational state of the device. For example: On, Off, Standby, etc.

Control Cardinality 0..1
Terminology Binding DeviceMetricOperationalStatus ( Required )
Type code
Summary true
DeviceMetric.color
Element Id DeviceMetric.color
Definition

Describes the color representation for the metric. 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; the parameters are displayed in different characteristic colors, such as HR-blue, BP-green, and PR and SpO2- magenta.

Control Cardinality 0..1
Terminology Binding DeviceMetricColor ( Required )
Type code
Summary true
DeviceMetric.category
Element Id DeviceMetric.category
Definition

Indicates the category of the observation generation process. A DeviceMetric can be for example a setting, measurement, or calculation.

Control Cardinality 1..1
Terminology Binding DeviceMetricCategory ( Required )
Type code
Summary true
DeviceMetric.measurementPeriod
Element Id DeviceMetric.measurementPeriod
Definition

Describes the measurement repetition time. This is not necessarily the same as the update period. The measurement repetition time can range from milliseconds up to hours. An example for a measurement repetition time in the range of milliseconds is the sampling rate of an ECG. An example for a measurement repetition time in the range of hours is a NIBP that is triggered automatically every hour. The update period may be different than the measurement repetition time, if the device does not update the published observed value with the same frequency as it was measured.

Control Cardinality 0..1
Type Timing
Summary true
DeviceMetric.calibration
Element Id DeviceMetric.calibration
Definition

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

Control Cardinality 0..*
Summary true
DeviceMetric.calibration.type
Element Id DeviceMetric.calibration.type
Definition

Describes the type of the calibration method.

Control Cardinality 0..1
Terminology Binding DeviceMetricCalibrationType ( Required )
Type code
Summary true
DeviceMetric.calibration.state
Element Id DeviceMetric.calibration.state
Definition

Describes the state of the calibration.

Control Cardinality 0..1
Terminology Binding DeviceMetricCalibrationState ( Required )
Type code
Summary true
DeviceMetric.calibration.time
Element Id DeviceMetric.calibration.time
Definition

Describes the time last calibration has been performed.

Control Cardinality 0..1
Type instant
Summary true