Medical devices with proximity detection
First Claim
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1. A wireless medical device, the wireless medical device comprising:
- a processor;
a memory that stores a patient context, the patient context providing an identifier for the patient;
a radio comprising an ultra-wideband (UWB) transceiver that determines a distance between the wireless medical device and a second wireless medical device, the radio using the distance as part of an authentication process;
wherein the wireless medical device is configured to join a personal area network with the second wireless medical device when the distance between the wireless medical device and the second wireless medical device is within a predetermined threshold, the distance being greater than zero, wherein the wireless medical device is configured to obtain the patient context from the second wireless medical device, the patient context being obtained from the second wireless medical device when the distance between the wireless medical device and the second wireless medical device is within the predetermined threshold for at least a predetermined interval of time, wherein the wireless medical device is configured to transfer physiological data to the second wireless medical device, the physiological data being transferred along with the patient context, andwherein the wireless medical device is configured to support a spot check mode and a continuous workflow mode, wherein when a second distance determined by the radio between the wireless medical device and the second wireless monitor device is greater than a second predetermined threshold for at least a second predetermined interval of time, the patient context data is removed from the wireless medical device if the wireless medical device is operating in a spot check mode and the patient context data remains stored on the wireless medical device if the wireless medical device is operating in a continuous workflow mode.
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Abstract
A wireless medical device is disclosed. The wireless medical device comprises a processor, a memory, a sensor for detecting a physiological signal, a radio and a proximity detector to measure a distance of the wireless medical device relative to a second wireless medical device. The proximity detector includes a ranging functionality. A wireless communication channel is created when a distance between the wireless medical device and the second wireless medical device is within a first predetermined threshold. The distance is greater than zero.
135 Citations
14 Claims
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1. A wireless medical device, the wireless medical device comprising:
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a processor; a memory that stores a patient context, the patient context providing an identifier for the patient; a radio comprising an ultra-wideband (UWB) transceiver that determines a distance between the wireless medical device and a second wireless medical device, the radio using the distance as part of an authentication process; wherein the wireless medical device is configured to join a personal area network with the second wireless medical device when the distance between the wireless medical device and the second wireless medical device is within a predetermined threshold, the distance being greater than zero, wherein the wireless medical device is configured to obtain the patient context from the second wireless medical device, the patient context being obtained from the second wireless medical device when the distance between the wireless medical device and the second wireless medical device is within the predetermined threshold for at least a predetermined interval of time, wherein the wireless medical device is configured to transfer physiological data to the second wireless medical device, the physiological data being transferred along with the patient context, and wherein the wireless medical device is configured to support a spot check mode and a continuous workflow mode, wherein when a second distance determined by the radio between the wireless medical device and the second wireless monitor device is greater than a second predetermined threshold for at least a second predetermined interval of time, the patient context data is removed from the wireless medical device if the wireless medical device is operating in a spot check mode and the patient context data remains stored on the wireless medical device if the wireless medical device is operating in a continuous workflow mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for authenticating a connection between two wireless medical devices, the method comprising:
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moving a first wireless medical device to a proximity of a second wireless medical device; using a first proximity detector on the first wireless medical device to determine a first distance between the first wireless medical device and the second wireless medical device; joining the first and second wireless medical devices to a personal area network when the first distance between the first wireless medical device and the second wireless medical device is within a first predetermined threshold, the first distance being greater than zero; obtaining a patient context at the first wireless medical device from the second wireless medical device when the first distance between the first wireless medical device and the second wireless medical device is within the first predetermined threshold for at least a first predetermined interval of time; transferring physiological data to the second wireless medical device along with the patient context; using the first proximity detector to determine a second distance; determining that the second distance is greater than a second predetermined threshold for at least a second predetermined period of time; removing the patient context data from the first wireless medical device if the first wireless medical device is operating in a spot check mode; and maintaining the patient context data stored in the first wireless medical device if the first wireless medical device is operating in a continuous workflow mode. - View Dependent Claims (12)
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13. A system for transmitting physiological data from a first wireless medical device, the system comprising the first wireless medical device and a patient monitor device, the first wireless medical device comprising:
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a first processor; a first memory that stores a patient context, the patient context providing an identifier for the patient; and a first radio, the first radio comprising a first ultra-wideband (UWB) transceiver that determines a first distance between the first wireless medical device and the patient monitor device, the first radio using the first distance as part of an authentication process, the patient monitor device comprising; a second processor; a second memory that stores the patient context; and a second radio, the second radio comprising a second UWB transceiver, wherein the first wireless medical device joins a personal area network with the patient monitor device when the first distance between the first wireless medical device and the patient monitor device is within a first predetermined threshold, the first distance being greater than zero, wherein the first wireless medical device obtains the patient context from the patient monitor device, the patient context being obtained from the patient monitor device when the first distance between the first wireless medical device and the patient monitor device is within the first predetermined threshold for at least a first predetermined interval of time, wherein the first wireless medical device transfers physiological data to the patient monitor device, the physiological data being transferred along with the patient context, and wherein the first wireless medical device supports a spot check mode and a continuous workflow mode, wherein when a second distance determined by the first radio between the first wireless medical device and the patient monitor device is greater than a second predetermined threshold for at least a second predetermined interval of time, the patient context data is removed from the first wireless medical device if the first wireless medical device is operating in a spot check mode and the patient context data remains stored on the first wireless medical device if the first wireless medical device is operating in a continuous workflow mode. - View Dependent Claims (14)
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Specification