RU2801181C1 - Pulse simulation module - Google Patents

Abstract

FIELD: simulators.

SUBSTANCE: invention relates to training devices designed to acquire strong sensory-motor skills for diagnosing a patient's condition and can be used in simulators of biological organisms. The pulse simulator module (1) consists of an electrical signal generator (2) located inside it, connected to a digital-to-analogue converter (3), connected to a low-pass filter (4), which is connected in series with a D-class audio amplifier (5) and electrodynamic emitter (6). A membrane (7) connected to a sealed housing (8) is connected to the electrodynamic emitter (6) and adapted for oscillation when an electrical signal is applied to it. A rigid channel (9) emerges from the sealed housing (8), connected to the elastic channel (10) and adapted for creating mechanical pulsations on the surface of the elastic channel, which are felt when touched by the fingers of the hand.

EFFECT: simulation of patient's heart signals during training medical procedures for use in medical simulators.

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Description

The invention relates to training devices designed to acquire strong sensory-motor skills for diagnosing a patient's condition and can be used in simulators of biological organisms.

prior art.

The analogue is the invention, RU (11) 2 124 762 (13) C1, IPC G09B 23/32 (1995.01) - A simulator for teaching emergency trauma and resuscitation techniques, where for the purpose of effective training in diagnostic techniques using a pulse, pulse simulators are installed on the femoral arteries and contain coils and permanent magnets, freely placed above the specified coils and operatively interacting with the electromagnetic fields of these coils connected to the control system of the simulator.

The specified simulator does not allow changing the variations of heart rhythms, limiting the range of imitations of cardiac pathologies.

An analogue can also be the invention RU (11) 98114969 (13) A (51) IPC G09B 23/32 (2000.01)24. The simulator according to claim 1, characterized in that pulse simulators are installed in the upper and lower limbs of the model, combined with an artery pressure sensor, each of which contains a body fixed under a through hole made in the shell of the limb, in the region of the radial and femoral arteries, in a through hole is made on the base of the body and an optoelectronic pair is fixed under it, and inside the body, with the possibility of movement, a spring-loaded body of the pulse simulator is installed, containing a rod, a permanent magnet rigidly connected to the base of the rod and an electromagnet, between which a damping gasket is located, moreover, the specified optoelectronic pair and the electromagnet is connected to the learning process control system. The presented simulator is complex in design, not autonomous, interconnected with the simulator of the artery.

Another analogue may be an auscultation training device and related methods, which is an auscultation system that includes a manikin having at least one built-in speaker, a non-contact device built into the manikin and capable of detecting the proximity of the auscultation device, a controller , capable of interacting with a contactless device and receiving a signal, a second controller designed to redefine the first controller and a database storing a plurality of sound files (US patent 9064428 (B2), CPC G09B 23/28 (2013.01)). In this simulator, which emits a response signal about the presence of a pulse only having discovered the proximity of the auscultatory device, a learning process is presented to develop practical skills only in auscultation (listening to sounds) of the pulse. However, the simulator, due to the device for sound imitation of the pulse, does not imply the possibility of palpation (touch) of the pulse. There is no technical implementation of the sensor method for determining the patient's pulse.

The simulator [1] ( https://mirmanekenov.ru/chest-trainer-for-catheterization-of-veins-system-centralineman ) with a venous simulator, designed to train puncture and catheterization of the subclavian, internal jugular and other main veins. Known simulator [1] includes: block for ultrasound, made of artificial tissue that mimics the structure of the human body; blood vessel simulators; a hand pump that simulates the beating of an arterial pulse.

The presented simulator, in order to solve the task of simulating a pulse beat, is based on a complex interdependent design, is not autonomous - it is interconnected with a vessel simulator, requires supplementation with a hand pump, while on a simulator that involves only ultrasonic researches, the possibility of realization of definition of pulse by a method of a palpation is excluded.

The objective of the claimed invention is to develop devices for simulating the pulse of a biological being as a module as part of a medical simulator for the comprehensive training of doctors in diagnosing a patient's condition in order to provide first aid in various clinical situations.

In the proposed pulse simulation module, a signal generator supplies an electrical signal of a certain shape, generated using a digital-to-analog converter. Further, the signal passes through an attached passive or active low-pass filter and a D-class audio amplifier, to which, in turn, an electrodynamic emitter is connected, then the signal enters the membrane adjacent to the emitter, connected to a sealed housing. In this case, rarefaction-compression waves arise in the closed volume of the hermetic housing. The resulting waves move along a rigid channel, reflecting from its walls, the waves enter the elastic channel, hitting the walls of which create mechanical pulsations on the surface of the elastic channel, which are felt when touched by the fingers of the hand, which is the technical solution to the required problem.

The D-class audio amplifier has an efficiency of about 90 percent and thus minimizes power consumption and amplifier heating at relatively high output power. The output power level of the amplifier is selected in accordance with the parameters of the electrodynamic emitter and the rarefaction-compression waves obtained with its help.

The technical result is the creation of a module that provides simulation of the patient's heart functioning signals during training medical procedures for use in medical simulators.

The essence of the invention is illustrated by a diagram (Fig. 1), which shows a general view of the pulse simulator module (structural diagram).

Pulse simulator module (1), signal generator (2), digital-to-analogue converter (3), passive or active low-pass filter (4), D-class audio amplifier (5), electrodynamic radiator (6), membrane (7 ), sealed body (closed volume) (8), rigid channel (9), elastic channel (10).

The pulse simulator module (1) contains a signal generator (2) connected in series with a digital-to-analogue converter (3), a passive or active low-pass filter (4) and a D-class audio frequency amplifier (5), to which an electrodynamic emitter ( 6) with a membrane (7) limited by a closed volume of a sealed housing (8), with a rigid channel (9) coming out of it with an elastic channel (10) attached to it.

The task of creating a pulse simulation module (1) is achieved by the fact that when an electrical signal of a certain shape is applied to the electrodynamic emitter (6), the membrane (7) adjacent to it oscillates, while in the closed volume of the sealed housing (8) attached to the membrane (7), rarefaction-compression waves arise, which, moving along the rigid channel (9) emanating from the sealed housing (8), are reflected from its walls, fall into the elastic channel (10), and then, hitting the walls of the elastic channel, create on the surface of the elastic channel, mechanical pulsations are felt when touched by the fingers of the hand, the resulting pulsations are most realistically similar to the pulsations of the pulse of a living person.

A signal of a certain shape is generated by a signal generator (2) using a digital-to-analog converter (3) and then, passing through a passive or active low-pass filter (4), it is fed to a D-class audio frequency amplifier (5), to which, in turn, turn, an electrodynamic emitter (6) is connected.

The D-class audio amplifier (5) has an efficiency of about 90 percent and thus minimizes the power consumption and heating of the amplifier (5) at a relatively high output power. The output power level of the amplifier (5) is selected in accordance with the parameters of the electrodynamic emitter (6) and the rarefaction-compression waves obtained with its help.

Advantages of the invention - low cost of its implementation, easy installation, low energy costs.

Options for implementing the invention - (several) N-channels can exit from one sealed housing (closed volume).

Sources of information taken into account:

1. https://mirmanekenov.ru/chest-simulator-for-vein-catheterization-system-centralineman.

Claims (1)

A pulse simulator module, characterized in that it consists of an electrical signal generator located inside it with the possibility of supplying an electrical signal to a digital-to-analog converter connected to a digital-to-analog converter connected to a low-pass filter connected in series to a D-class audio frequency amplifier and an electrodynamic emitter, while a membrane located in a sealed housing and connected to the sealed housing adjoins the electrodynamic emitter with the possibility of oscillations when an electric signal is applied, and a rigid channel emerges from the sealed housing, connected to the elastic channel with the possibility of creating mechanical mechanical channels on the surface of the elastic channel. pulsations felt when touched by the fingers of the hand.