Sensor System Using Human Body Communication for Patient ID
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Solution Overview
Problem
In wireless sensor systems, accurate association of vital information with patients is challenging when multiple patients are close to the display device, leading to interference between sensor communications.
Innovation Solution
A sensor system that uses an ID tag with a storage unit for patient identification information, transmitting this information via human body communication to the sensor, which then associates it with measured vital information and sends it to an external device, ensuring accurate patient-data linkage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used between sensor and display device, then movement restriction is solved, but communication interference occurs when multiple patients are at short distance
Solution Approach 1:
The patent introduces an intermediary identification system consisting of an ID tag attached to the patient and a sensor with identification reading function. The ID tag serves as a mediator that carries patient identification information, allowing the sensor to uniquely identify the patient without relying solely on wireless communication signals that can be interfered with. This intermediary mechanism resolves the contradiction by maintaining communication freedom while ensuring accurate patient identification through the ID tag-sensor pairing system.
2Ease of operation
If wireless communication is used for sensor data transmission, then cable restriction is eliminated, but accurate association of vital information with patient becomes difficult when multiple sensors are nearby
Solution Approach 1:
The patent applies preliminary action by pre-attaching the ID tag to the patient before sensor placement. The ID tag is prepared in advance with the patient's identification information, and the sensor is designed to read this information upon contact. This preliminary preparation ensures that when multiple sensors are deployed nearby, each sensor can accurately associate vital information with the correct patient through the pre-established ID tag connection, eliminating ambiguity in patient-sensor data association.
3Device complexity
If manual association of sensor data with patient is performed, then system complexity is reduced, but human error and time consumption increase
Solution Approach 1:
The patent implements self-service by designing the sensor to automatically read patient identification information from the ID tag and associate it with the measured vital information without requiring manual intervention. The sensor autonomously performs the data association task that would otherwise require manual configuration, thereby reducing both the time loss and potential for human error while maintaining relatively simple system architecture through the use of passive ID tags and automated reading mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate association and display of vital information with patients, reducing the risk of interference and human error in patient identification, and simplifying the workflow by automatic patient-sensor data correlation.
Implementation Method 1
the ID tag can transmit the patient identification information to the sensor by human body communication through a surface of a body of the patient
Data Source
AI summary
A sensor system including: a wristband (2) which has a storage unit storing patient identification information so that a patient can be identified by the patient identification information; and a sensor (3) which can measure vital information of the patient; wherein: the wristband (2) can transmit the patient identification information to the sensor (3) by human body communication through a surface of a body of the patient in a state in which the wristband (2) and the sensor (3) are attached to the patient; and the sensor (3) associates the patient identification information with the vital information and then transmits the vital information including the patient identification information to a bedside monitor 4.


