Patent ID: 8621234

Claim:
An information interchange system comprising: a reader, implemented through a computer processor, configured to extract, from a certificate obtained from a first health care facility at which the patient previously registered, a signature of a first service provider and a first identifier of the patient which is generated by the first service provider, and generate a second identifier of the patient corresponding to the first identifier, wherein the reader is at a second health care facility at which a patient is registering and the first identifier does not include the patient's real identity, but identifies the patient to the first health care facility; a first identifier manager of the second health care facility configured to associate the first identifier with the second identifier and send a request to any one of a second identifier manager of the first health care facility and the first service provider so as to request a medical record associated with the first identifier; and a receiver of the second health care facility configured to receive the requested medical record from any one of the second identifier manager and the first service provider and associate the received medical record with the second identifier, wherein the second identifier manager further comprises: an identifier mapping unit configured to map the first identifier to a third identifier; a database configured to retrieve a record associated with the third identifier; and a sender configured to send the retrieved record to the receiver as being the record associated with the first identifier.