Tactile Pulse Simulator Controller for Medical Training
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Solution Overview
Problem
Current methods for simulating a pulse in medical or veterinary training fail to accurately replicate the timing, rate, amplitude, pattern, and feel of a patient's pulse, particularly for specific medical conditions, as they focus on auditory outputs and do not mask frequencies within the human hearing range, lacking realism in training scenarios.
Innovation Solution
A system comprising tactile pulse simulators, such as speakers, haptic motors, and piezoelectric elements, connected to a controller that generates a synthetic pulse signal to mimic the pulse characteristics of various medical conditions, providing a haptic feedback that simulates the pulse feel on a human or animal actor, while filtering out audible frequencies to focus on tactile sensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If auditory output devices are used to simulate pulse, then the device can provide sound feedback, but it fails to provide accurate tactile pulse sensation and realistic training experience
Solution Approach 1:
The patent extracts and removes the audible frequency components from the pulse simulation signal, keeping only the tactile frequency range. This is achieved through filtering out frequencies above approximately 200 Hz, which eliminates the harmful auditory interference while preserving the useful tactile pulse sensation below 200 Hz.
Solution Approach 2:
The patent applies different frequency characteristics to different aspects of the pulse simulation. The tactile component uses low frequencies (below 200 Hz) to provide realistic pulse sensation, while the audible component is filtered out. This local differentiation of frequency quality enables accurate pulse feel without auditory interference.
2Reliability
If mannequins are equipped with systems to mimic vital signs, then the pulse can be simulated, but the emotional aspects and realism of the training scenario are lost
Solution Approach 1:
The patent uses an intermediary approach by attaching a pulse simulation device to a human actor rather than using a lifeless mannequin. The device acts as a mediator that provides reliable pulse simulation while the human actor maintains the emotional and social realism of the training scenario, combining the benefits of both approaches.
Solution Approach 2:
The patent merges the reliable pulse simulation capability of mechanical devices with the emotional and social realism of human actors. The pulse simulation device is integrated into the actor's body, combining the technical reliability of controlled pulse generation with the naturalistic presence and emotional response of a human participant.
3Adaptability or versatility
If healthy human actors are used for training, then emotional aspects are preserved, but the unusual pulse rate and pattern of medical conditions cannot be reproduced
Solution Approach 1:
The patent applies preliminary action by pre-programming the pulse simulation device with specific pulse patterns and characteristics corresponding to various medical conditions. Before the training scenario begins, the device is configured to reproduce accurate pulse rates, rhythms, and patterns associated with different pathological states, enabling healthy actors to display condition-specific pulse characteristics.
Solution Approach 2:
The patent uses copying by replicating the pulse characteristics of patients with specific medical conditions through the simulation device. The device copies the temporal patterns, rates, and amplitude variations of pathological pulses, allowing healthy actors to accurately represent the pulse features of sick patients without actually having the conditions.
4Speed
If tactile feedback units are driven by high-frequency signals, then the response is faster, but the output becomes audible and loses tactile specificity
Solution Approach 1:
The patent uses periodic action by driving the tactile feedback units with pulsed signals at frequencies below 200 Hz. This periodic stimulation creates distinct tactile sensations corresponding to pulse beats while remaining below the audible range. The periodic nature of the low-frequency signals provides both speed and tactile specificity without generating harmful audible output.
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
The system effectively simulates the pulse of specific medical conditions, enhancing the realism of training by providing accurate tactile feedback that mimics the pulse experienced by a patient, thereby improving the diagnostic and treatment skills of medical and veterinary personnel.
Implementation Method 1
The pulse simulation device may include one or more tactile pulse simulators, such as speakers, haptic motors, or piezoelectric elements
Implementation Method 2
A system comprising tactile pulse simulators, such as speakers, haptic motors, and piezoelectric elements, connected to a controller that generates a synthetic pulse signal to mimic the pulse characteristics
Implementation Method 3
these methods are focused on providing 'sound' devices, 'auscultation' devices, or 'auditory' devices. No attempt is made to mask frequencies within the human hearing range
Data Source
AI summary
A pulse simulation device comprises a controller for generating at least one signal simulating a pulse, at least one tactile feedback unit wherein the tactile feedback unit is driven by the controller to generate tactile response simulating a pulse, and a wearable attachment for holding the tactile feedback on an actor.