Patent ID: 11887704
Assignee: SIEMENS HEALTHCARE LIMITED
Field: Medical technology (Instruments)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A providing system for providing a requested medical data record to a receiving entity, comprising:
an interface, configured to receive a set of medical data records stored in a database of a providing entity; and
a computation unit, wherein the interface or the computation unit is configured to receive or initialize a joint data index and wherein the computation unit is, for each respective medical data record of the set of medical data records,
configured to apply a plurality of hash functions to a patient identifier corresponding to the respective medical data record to determine a respective hash vector, the patient identifier corresponding to the respective medical data record identifying a patient being subject of the respective medical data record, and
configured to update the joint data index based on the respective hash vector;
wherein the interface is furthermore configured to provide the joint data index to the receiving entity by storing, by the providing entity, the joint data index in a distributed ledger that is accessible by the receiving entity,
wherein the interface is furthermore configured to receive a request for the requested medical data record of the set of medical data records from the receiving entity,
wherein the requested medical data record corresponds to a requested patient identifier, and
wherein the interface is furthermore configured to provide the requested medical data record to the receiving entity via a secure communication channel.