diff --git a/src/main/kotlin/application/presenter/api/model/SurgeryReportApiDto.kt b/src/main/kotlin/application/presenter/api/model/SurgeryReportApiDto.kt
index 5aaf360..e555435 100644
--- a/src/main/kotlin/application/presenter/api/model/SurgeryReportApiDto.kt
+++ b/src/main/kotlin/application/presenter/api/model/SurgeryReportApiDto.kt
@@ -12,7 +12,7 @@ import application.presenter.api.model.healthcareuser.HealthcareUserApiDto
 import application.presenter.api.model.healthcareuser.PatientVitalSignsApiDto
 import application.presenter.api.model.measurements.AggregateDataApiDto
 import application.presenter.api.model.medicaldevice.ImplantableMedicalDeviceApiDto
-import application.presenter.api.model.medicaldevice.MedicalTechnologyApiDto
+import application.presenter.api.model.medicaldevice.MedicalTechnologyUsageApiDto
 import application.presenter.api.model.process.SurgicalProcessStepApiDto
 import application.presenter.api.model.room.RoomApiDto
 import application.presenter.api.model.room.RoomApiDtoType
@@ -53,7 +53,7 @@ data class SurgeryReportApiDto(
     val healthcareUser: HealthcareUserApiDto?,
     val stepData: Map<SurgicalProcessStepApiDto, SurgicalProcessStepAggregateDataApiDto>,
     val consumedImplantableMedicalDevice: Set<ImplantableMedicalDeviceApiDto>,
-    val medicalTechnologyUsageData: Set<Pair<String, MedicalTechnologyApiDto>>,
+    val medicalTechnologyUsageData: Set<MedicalTechnologyUsageApiDto>,
     val healthProfessionalTrackingInformation: List<TrackingInformationApiDto>,
     val additionalData: String,
 )
diff --git a/src/main/kotlin/application/presenter/api/model/medicaldevice/MedicalTechnologyApiDto.kt b/src/main/kotlin/application/presenter/api/model/medicaldevice/MedicalTechnologyApiDto.kt
index 0eb9cf1..e52d14a 100644
--- a/src/main/kotlin/application/presenter/api/model/medicaldevice/MedicalTechnologyApiDto.kt
+++ b/src/main/kotlin/application/presenter/api/model/medicaldevice/MedicalTechnologyApiDto.kt
@@ -32,3 +32,12 @@ enum class MedicalTechnologyApiDtoType {
     ENDOSCOPE,
     XRAY,
 }
+
+/**
+ * Presenter class that represent the usage of a [medicalTechnology] in a specific [dateTime].
+ */
+@Serializable
+data class MedicalTechnologyUsageApiDto(
+    val dateTime: String,
+    val medicalTechnology: MedicalTechnologyApiDto,
+)
diff --git a/src/main/kotlin/application/presenter/api/serialization/SurgeryReportSerializer.kt b/src/main/kotlin/application/presenter/api/serialization/SurgeryReportSerializer.kt
index 8afb48c..939060c 100644
--- a/src/main/kotlin/application/presenter/api/serialization/SurgeryReportSerializer.kt
+++ b/src/main/kotlin/application/presenter/api/serialization/SurgeryReportSerializer.kt
@@ -12,6 +12,7 @@ import application.presenter.api.model.SurgeryReportApiDto
 import application.presenter.api.model.SurgeryReportEntry
 import application.presenter.api.model.SurgicalProcessStepAggregateDataApiDto
 import application.presenter.api.model.measurements.AggregateDataApiDto
+import application.presenter.api.model.medicaldevice.MedicalTechnologyUsageApiDto
 import application.presenter.api.serialization.HealthcareUserSerializer.toApiDto
 import application.presenter.api.serialization.MedicalDeviceSerializer.toApiDto
 import application.presenter.api.serialization.RoomSerializer.toApiDto
@@ -55,7 +56,7 @@ object SurgeryReportSerializer {
             .mapValues { (_, data) -> data.toApiDto() },
         consumedImplantableMedicalDevice = this.consumedImplantableMedicalDevices.map { it.toApiDto() }.toSet(),
         medicalTechnologyUsageData = this.medicalTechnologyUsageData
-            .map { it.first.toString() to it.second.toApiDto() }
+            .map { MedicalTechnologyUsageApiDto(it.first.toString(), it.second.toApiDto()) }
             .toSet(),
         healthProfessionalTrackingInformation = this.healthProfessionalTrackingInformation.map { it.toApiDto() },
         additionalData = this.additionalData,