Abstract
This paper describes a system for training healthcare practitioners in the identification of different arterial pulses. The driving system uses a linear solenoid in an open loop force control. Due to the large hysteresis it exhibited, a form of compensation was implemented, based on the classic Preisach model of hysteresis. Implementation of said model resulted in a significant reduction of force tracking error, demonstrating the feasibility of the chosen approach for the intended application.
Highlights
Palpation of the pulse is a medical technique that allows a physician to rapidly assess the status of a given person’s cardiovascular system
Considering the relevance of this topic and the existing solutions, this paper proposes a solution for tactile simulation of the arterial pulse based on simple, low-cost technology, that could be used for medical training
In order to evaluate the performance of the implemented hysteresis compensation, the test signals presented in Section 1 were used
Summary
Palpation of the pulse is a medical technique that allows a physician to rapidly assess the status of a given person’s cardiovascular system It can be a good source of information, as it enables the physician to perform a rough measurement of heart rate, rhythm, strength of contraction and artery elasticity [1]. The main goal of the system is to be used as a training tool for current or future physicians, so that they can learn to distinguish between different pulse profiles This would enable them to make early diagnoses of certain conditions using only finger palpation, without having to resort to expensive or unavailable equipment. Throughout the following sections the developed system will be detailed, with a focus on the method used to overcome the actuator hysteresis
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