Koninklijke Philips Corporation N.v.

David Sanchez Sanchez

Heribert Baldus

Karin Klabunde

Thomas Maria Falck

A user interface ('&#x2033; for providing authenticated access to medical equipment, data, or records includes a dynamic display (&#x2032;&#x2033;) that selectively shows user options. A touchscreen overlay (40) aligned with the dynamic display identifies a touch location on, in, or adjacent the dynamic display. A fingerprint reader (&#x2032;&#x2033; is triggered by the touchscreen overlay and acquires a fingerprint at the touch location. User authentication, access control and logging are performed based on identifying and authenticating the fingerprint.

Distinctive user identification and authentication for multiple user access to display devices

A medical ad hoc wireless network () is deployed in a healthcare medical facility surrounding individual patients and including wireless nodes (A, B, . . . , Z). Before deployment, each node (A, B, . . . , Z) is pre-initialized with a public key certificate () and offers a trust and symmetric key distribution service (). In joining the ad hoc network (), a node (B) authenticates and registers to one randomly self-chosen node (A) by using certified public keys (). Such node (A) becomes Trusted Portal (TP) of the node (B). The node (B) dynamically registers to a new self-chosen TP node when its old TP node leaves the ad hoc network (). The network () supports symmetric key authentication between nodes registered to the same TP node. Additionally, it supports symmetric key authentication between nodes registered to different TP nodes.

System and methods for efficient authentication of medical wireless ad hoc network nodes

A wireless sensor network for wirelessly monitoring a medical subject includes a plurality of sensor nodes (). Each sensor node includes a wireless transceiver () for sending and receiving wireless messages, a sensor () monitoring a characteristic of the medical subject, and a processor (). The processor is programmed to at least perform an authentication method including: (i) acquiring sensor data via the sensor for a predetermined time () responsive to receiving a wireless trigger message; (ii) storing an association code () computed from the acquired sensor data; and (iii) authenticating a subsequently received wireless message containing an association code tag by comparing the association code tag with the stored association code. The processor further attaches the stored association code as the association code tag in messages sent to other sensors.

Safe identification and association of wireless sensors

A system for securely synchronizing medical devices and providing message integrity with timeliness and uniqueness () includes a plurality of medical wireless devices (,, . . . ,). The medical devices (,, . . . ,) communicate wirelessly with one another. Each message (M) includes a data portion and a timestamp. Each medical device (,, . . . ,) includes a sensor () which is attached to a patient to monitor a common vital sign. The medical devices (,, . . . ,) are synchronized when the sensor () of each medical device detects a peak of the vital sign function. At this moment, internal clocks of each medical device (,, . . . ,) are zeroed and each internal timer starts counting time. Thus, the medical devices are loosely synchronized at approximately the same time. Each generated message (M) is timestamped with a send time (T) generated by a time count. The generated timestamp (T) of the message (M) is validated against a receive time (T) of the receiving medical device internal clock count. If the message (M) arrives out of the prespecified acceptance window, the message (M) is rejected by the receiving medical device.

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Aachen, Germany

David Sanchez Sanchez