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

Claim 0:
1. A computer-implemented method for providing a requested medical data record to a receiving entity, comprising:
receiving a set of medical data records stored in a database of a providing entity;
receiving or initializing a joint data index;
for each respective medical data record of the set of medical data records
applying 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
updating the joint data index based on the respective hash vector;

providing the joint data index to the receiving entity, wherein the providing the joint data index includes storing, by the providing entity, the joint data index in a distributed ledger that is accessible by the receiving entity;
receiving a request for the requested medical data record of the set of medical data records from the receiving entity, the request being based on the provided joint data index and the requested medical data record corresponding to a requested patient identifier; and
providing the requested medical data record to the receiving entity via a secure communication channel.