Optical Pulse Detection for AED Hesitation and Privacy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
General citizens hesitate to use AEDs due to difficulty in accurately judging unconscious and breathless patients, leading to delayed electric shocks and potential unnecessary exposure of patients, compromising both lifesaving efficiency and privacy.
Innovation Solution
A lifesaving assisting apparatus with a light-emitting section, light-receiving section, pulse-amplitude Index acquiring section, and notifying section to determine the presence or absence of a patient's pulse using objective parameters, providing accurate and rapid assessments to guide AED usage while protecting patient privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a general citizen attempts to judge whether to use AED on an unconscious patient, then the citizen can potentially save a life, but the citizen may hesitate and delay due to difficulty in accurately judging the patient's state
Solution Approach 1:
The patent replaces the manual mechanical pulse-checking method with an optical detection system using light-emitting and light-receiving sections. This optical system automatically detects pulse presence through light absorption changes in blood, eliminating the need for manual judgment and reducing hesitation time while improving accuracy.
Solution Approach 2:
The patent introduces a pulse detection device as an intermediary between the citizen and the AED decision-making process. This intermediary objectively measures pulse presence and provides clear guidance, bridging the gap between the citizen's uncertainty and the need for rapid AED application.
2Reliability
If a general citizen checks for pulse by exposing the patient's chest, then the citizen can attempt to determine AED necessity, but the patient's privacy is compromised unnecessarily
Solution Approach 1:
The patent replaces the mechanical method of chest exposure and manual pulse checking with a non-contact or minimal-contact optical detection system. The light-based detection can be performed through the skin without exposing the chest, thereby maintaining patient privacy while achieving accurate pulse detection.
Solution Approach 2:
The pulse detection device serves as an intermediary that obtains necessary medical information without requiring direct chest exposure. By using optical detection through the skin or at alternative sites, the intermediary preserves patient dignity and privacy while still providing accurate pulse presence determination.
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 and rapid determination of patient pulses, preventing unnecessary AED usage and protecting patient privacy by providing clear guidance on lifesaving actions, thus improving lifesaving efficiency and reducing hesitation in using AEDs.
Implementation Method 1
a light-emitting section configured to emit light to be irradiated on a body of a patient; a light-receiving section configured to output a signal corresponding to an intensity of light which has been transmitted through or reflected from the body of the patient
Implementation Method 2
a pulse-amplitude Index acquiring section configured to analyze amplitude of the signal to acquire a pulse-amplitude Index of the patient
Data Source
AI summary
A light-emitting section (21) emits light to be irradiated on a body of a patient (100). A light-receiving section (22) outputs a signal corresponding to an intensity of light which has been transmitted through or reflected from the body of the patient (100). A pulse-amplitude Index acquiring section (32) analyzes amplitude of the signal to acquire a pulse-amplitude Index of the patient (100). A pulse determining section (33) determines presence or absence of a pulse of the patient (100) in accordance with the pulse-amplitude Index. A notifying section (34) notifies a result of determination made by the pulse determining section (33).