5.11 Resource DeviceComponent - Content

5.11.1 Scope and Usage

The DeviceComponent resource is used to describe the characteristics, operational status and capabilities of a medical-related component of a medical device. It can be a physical component that is integrated inside the device, a removable physical component, or a non-physical component that allows physiological measurement data and its derived data to be grouped in a hierarchical information organization.

Note:

For the initial scope, this DeviceComponent resource is only applicable to describe a single 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 and that does not represent a metric. Examples for such a node are MDS, VMD, or Channel.

5.11.2 Boundaries and Relationships

The DeviceComponent allows us to change the configuration of the device without having to change the device resource instance. The life-cycle of the configuration may be completely different than the one of the device itself.

There are several related resources

• Device - Used by the MedicalDeviceSystem profile
• Patient - Used by the MedicalDeviceSystem profile
• Location - Used by the MedicalDeviceSystem profile
• DeviceComponent

5.11.3 Background and Context

5.11.3.1 Structure of a DeviceComponent Resource

A Context Scanner object of a medical device that implements or derives from ISO/IEEE 11073 standard is responsible for observing device configuration changes. After instantiation, the Context Scanner object is responsible for announcing the object instances in the device's MDIB, a hierarchical containment (MDS->VMD->Channel->Metric). The DeviceComponent resource can be used to describe the characteristics, operational status and capabilities of a medical-related component of a medical device. It can be a physical component that is integrated inside the device, a removable physical component, or a non-physical component that allows physiological measurement data and its derived data to be grouped in a hierarchical information organization. Devices are conceptualised using the following main structure:

1. MedicalDeviceSystem - An actual device that external systems communicate with. In 11073, this is known as a MDS.
2. VirtualMedicalDevice - A medical-related subsystem of a medical device. It can either be a physical hardware piece or a pure software plugin component of a medical device. In 11073, this is known as a VMD.
3. Channel - A non-physical component that allows physiological measurement data and its derived data to be grouped in a hierarchical information organization.

Very simple devices may have only a single virtual device with a single channel and one metric, while complex devices may have multiple items at every level.

• Structure
• UML
• XML
• JSON
• All

Structure

Name	Flags	Card.	Type	Description & Constraints
DeviceComponent	Σ		DomainResource	An instance of a medical-related component of a medical device
type	Σ	1..1	CodeableConcept	What kind of component it is ComponentType (Preferred)
identifier	Σ	1..1	Identifier	Instance id assigned by the software stack
lastSystemChange	Σ	1..1	instant	Recent system change timestamp
source	Σ	0..1	Reference(Device)	A source device of this component
parent	Σ	0..1	Reference(DeviceComponent)	Parent resource link
operationalStatus	Σ	0..*	CodeableConcept	Component operational status
parameterGroup	Σ	0..1	CodeableConcept	Current supported parameter group
measurementPrinciple	Σ	0..1	code	other | chemical | electrical | impedance | nuclear | optical | thermal | biological | mechanical | acoustical | manual+ Measmnt-Principle (Required)
productionSpecification	Σ	0..*	BackboneElement	Production specification of the component
specType	Σ	0..1	CodeableConcept	Specification type
componentId	Σ	0..1	Identifier	Internal component unique identification
productionSpec	Σ	0..1	string	A printable string defining the component
languageCode	Σ	0..1	CodeableConcept	Language code for the human-readable text strings produced by the device
Documentation for this format

<DeviceComponent xmlns="http://hl7.org/fhir"> 
 <!-- from Resource: id, meta, implicitRules, and language -->
 <!-- from DomainResource: text, contained, extension, and modifierExtension -->
 <type><!-- 1..1 CodeableConcept What kind of component it is  --></type>
 <identifier><!-- 1..1 Identifier Instance id assigned by the software stack --></identifier>
 <lastSystemChange value="[instant]"/><!-- 1..1 Recent system change timestamp -->
 <source><!-- 0..1 Reference(Device) A source device of this component --></source>
 <parent><!-- 0..1 Reference(DeviceComponent) Parent resource link --></parent>
 <operationalStatus><!-- 0..* CodeableConcept Component operational status --></operationalStatus>
 <parameterGroup><!-- 0..1 CodeableConcept Current supported parameter group --></parameterGroup>
 <measurementPrinciple value="[code]"/><!-- 0..1 other | chemical | electrical | impedance | nuclear | optical | thermal | biological | mechanical | acoustical | manual+ -->
 <productionSpecification>  <!-- 0..* Production specification of the component -->
  <specType><!-- 0..1 CodeableConcept Specification type --></specType>
  <componentId><!-- 0..1 Identifier Internal component unique identification --></componentId>
  <productionSpec value="[string]"/><!-- 0..1 A printable string defining the component -->
 </productionSpecification>
 <languageCode><!-- 0..1 CodeableConcept Language code for the human-readable text strings produced by the device --></languageCode>
</DeviceComponent>

{
  "resourceType" : "DeviceComponent",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "type" : { CodeableConcept }, // R!  What kind of component it is 
  "identifier" : { Identifier }, // R!  Instance id assigned by the software stack
  "lastSystemChange" : "<instant>", // R!  Recent system change timestamp
  "source" : { Reference(Device) }, // A source device of this component
  "parent" : { Reference(DeviceComponent) }, // Parent resource link
  "operationalStatus" : [{ CodeableConcept }], // Component operational status
  "parameterGroup" : { CodeableConcept }, // Current supported parameter group
  "measurementPrinciple" : "<code>", // other | chemical | electrical | impedance | nuclear | optical | thermal | biological | mechanical | acoustical | manual+
  "productionSpecification" : [{ // Production specification of the component
    "specType" : { CodeableConcept }, // Specification type
    "componentId" : { Identifier }, // Internal component unique identification
    "productionSpec" : "<string>" // A printable string defining the component
  }],
  "languageCode" : { CodeableConcept } // Language code for the human-readable text strings produced by the device
}

Structure

Name	Flags	Card.	Type	Description & Constraints
DeviceComponent	Σ		DomainResource	An instance of a medical-related component of a medical device
type	Σ	1..1	CodeableConcept	What kind of component it is ComponentType (Preferred)
identifier	Σ	1..1	Identifier	Instance id assigned by the software stack
lastSystemChange	Σ	1..1	instant	Recent system change timestamp
source	Σ	0..1	Reference(Device)	A source device of this component
parent	Σ	0..1	Reference(DeviceComponent)	Parent resource link
operationalStatus	Σ	0..*	CodeableConcept	Component operational status
parameterGroup	Σ	0..1	CodeableConcept	Current supported parameter group
measurementPrinciple	Σ	0..1	code	other | chemical | electrical | impedance | nuclear | optical | thermal | biological | mechanical | acoustical | manual+ Measmnt-Principle (Required)
productionSpecification	Σ	0..*	BackboneElement	Production specification of the component
specType	Σ	0..1	CodeableConcept	Specification type
componentId	Σ	0..1	Identifier	Internal component unique identification
productionSpec	Σ	0..1	string	A printable string defining the component
languageCode	Σ	0..1	CodeableConcept	Language code for the human-readable text strings produced by the device
Documentation for this format

UML Diagram

XML Template

<DeviceComponent xmlns="http://hl7.org/fhir"> 
 <!-- from Resource: id, meta, implicitRules, and language -->
 <!-- from DomainResource: text, contained, extension, and modifierExtension -->
 <type><!-- 1..1 CodeableConcept What kind of component it is  --></type>
 <identifier><!-- 1..1 Identifier Instance id assigned by the software stack --></identifier>
 <lastSystemChange value="[instant]"/><!-- 1..1 Recent system change timestamp -->
 <source><!-- 0..1 Reference(Device) A source device of this component --></source>
 <parent><!-- 0..1 Reference(DeviceComponent) Parent resource link --></parent>
 <operationalStatus><!-- 0..* CodeableConcept Component operational status --></operationalStatus>
 <parameterGroup><!-- 0..1 CodeableConcept Current supported parameter group --></parameterGroup>
 <measurementPrinciple value="[code]"/><!-- 0..1 other | chemical | electrical | impedance | nuclear | optical | thermal | biological | mechanical | acoustical | manual+ -->
 <productionSpecification>  <!-- 0..* Production specification of the component -->
  <specType><!-- 0..1 CodeableConcept Specification type --></specType>
  <componentId><!-- 0..1 Identifier Internal component unique identification --></componentId>
  <productionSpec value="[string]"/><!-- 0..1 A printable string defining the component -->
 </productionSpecification>
 <languageCode><!-- 0..1 CodeableConcept Language code for the human-readable text strings produced by the device --></languageCode>
</DeviceComponent>

JSON Template

{
  "resourceType" : "DeviceComponent",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "type" : { CodeableConcept }, // R!  What kind of component it is 
  "identifier" : { Identifier }, // R!  Instance id assigned by the software stack
  "lastSystemChange" : "<instant>", // R!  Recent system change timestamp
  "source" : { Reference(Device) }, // A source device of this component
  "parent" : { Reference(DeviceComponent) }, // Parent resource link
  "operationalStatus" : [{ CodeableConcept }], // Component operational status
  "parameterGroup" : { CodeableConcept }, // Current supported parameter group
  "measurementPrinciple" : "<code>", // other | chemical | electrical | impedance | nuclear | optical | thermal | biological | mechanical | acoustical | manual+
  "productionSpecification" : [{ // Production specification of the component
    "specType" : { CodeableConcept }, // Specification type
    "componentId" : { Identifier }, // Internal component unique identification
    "productionSpec" : "<string>" // A printable string defining the component
  }],
  "languageCode" : { CodeableConcept } // Language code for the human-readable text strings produced by the device
}