Electrostimulator of gastroenteric tract

FIELD: medicine, in particular, electrostimulating devices for treatment of organs and tissues.

SUBSTANCE: the electrostimulator of the gastroenteric tract has a casing formed by two insulated from each other electrodes and a dielectric housing. A generator of stimulating pulses connected to the electrodes, power source and an LC oscillator of high-frequency oscillations, controlled by the generator of stimulating pulses, are installed in the casing. The inductance coil of the LC oscillator is positioned outside the zone of screening by the electrodes. The inductance coil is made either on a cylindrical frame located inside the casing, or on the outer surface of the dielectric housing between the electrodes and is coated by a bioinert, radio-transparent, sealing material.

EFFECT: probability to monitor the service ability of the electrostimulator when it is in the gastroenteric tract.

3 cl, 4 dwg

 

The present invention relates to the field of biomedical engineering, more specifically to electro-stimulation devices for the diagnosis and treatment of organs and tissues, and more specifically, to the improvement of the Autonomous electrostimulator of gastrointestinal tract (GIT).

Known electrostimulator of gastrointestinal tract, comprising a housing formed by two insulated from each other by the electrodes and the dielectric sleeve into which you installed the generator stimulating pulses coupled to the electrodes and the power source for it [A.S. No. 936931 the USSR, MCI And 61 N 1/36/Electrostimulator of gastrointestinal tract/Baker VV, Agafonnikov V.F., Dambai HZ., Kobozev V.I., Popov O.S - Publ. 23.06.82, bull. No. 23].

This should be taken as a prototype.

Lack of pacemaker prototype is the following. It is known that test the functionality of the pacemaker before use, you can use the indicator supplied with the electrostimulator, when its in the gastrointestinal tract to monitor the performance of the pacemaker problematic. In clinical conditions, the control of the Pacer health after finding him in the stomach can be done with the help of electrocardiographs, mingograph or electrogastrographic [Baker VV, Agaf nikov SCI, Dambai GC, O.S. Popov Martusevich A.G. Autonomous electrical stimulator of humans and animals. - Tomsk: sgmi, 1995. - 132 c.]. However, such tests may only be performed in well-equipped clinics and hospitals in the presence of expensive equipment. When applying the pacemaker at home this control until the present time to produce the impossible. Thus, the creation of a pacemaker, giving the opportunity to objectively assess its performance in any conditions without expensive equipment, is an important task.

The present invention is the creation of a pacemaker with the ability to monitor his / her health when last in the gastrointestinal tract.

This task is achieved by the fact that in the electrostimulator of gastrointestinal tract, comprising a housing formed by two insulated from each other by the electrodes and the dielectric sleeve into which you installed the generator stimulating pulses coupled to the electrodes and the power source for it, additionally introduced LC-generator of high frequency oscillations, driven generator stimulation pulses, the coil of which is located outside the shielding electrodes, and the coil inductance is made either in the front of the logical framework, located inside or on the outer surface of the dielectric sleeve between the electrodes and covered with a bioinert, radiation transparent sealing material.

The invention is illustrated by drawings.

Figure 1 - the electrostimulator of gastrointestinal tract in longitudinal section with the inductor inside the enclosure;

figure 2 - the electrostimulator of gastrointestinal tract in longitudinal section with the inductor on the outer surface of the dielectric sleeve;

figure 3 - functional diagram of the pacemaker;

4 is a circuit diagram of the LC generator.

The electrostimulator of gastrointestinal tract includes a housing formed by two insulated from each other by electrode 1, 2 and dielectric sleeve - 3. Installed inside the case power supply - 4, generator stimulation pulses - 5, LC-generator of high frequency oscillations - 6, the coil of which is 7, is located outside the shielding its electrodes 1, 2. The coil may be located inside the cylindrical frame 8, or on the outer surface of the dielectric sleeve 3 between the electrodes 1, 2, while it is covered with bioinert, radiation transparent sealing material 9 (figure 2). The generator output stimulating pulses - 5 is connected with e is STRADOM electrostimulator - 1 and the control input LC generator of high frequency oscillations - 6. Power supply 4 is connected to the generator stimulation pulses - 5 (common bus supply - 4 is connected to the electrode 2), and LC-generator of high frequency oscillations - 6 (figure 3).

Works electrostimulator of gastrointestinal tract as follows.

When hit electrostimulator in the gastrointestinal tract generator stimulation pulses - 5 starts operating and outputs to the electrodes 1, 2 of a series of electric impulses, these impulses reach the control input LC generator of high frequency oscillations - 6. During the duration of the pulse at the control input LC generator of high frequency oscillations - 6, the latter generates an AC sine wave with a period of own sustained oscillations in the circuit defined by the formula Thomson [Kuchling X. Handbook of physics. - M.: Mir, 1982. - 520 S.]. Around the coil inductance is formed by an electromagnetic field which you can register a receiver at a distance of 1 m (for example, household radio with radio and/or wavelength ranges of wavelengths, as the analysis in [Babsky E.B., Sorin A. M., Davydov, S. Appliances endoradiosonde. M.: Nauka, 1975. - 176 S.], shows that the power loss ELEH the electromagnetic field due to its absorption by the body tissues at frequencies of 200 kHz - 10 MHz does not exceed 3-5%). The formation and emission of high-frequency oscillations in the specified frequency range is in sync with the series of stimulation pulses.

Figure 4 shows an example of execution of the LC generator of high frequency oscillations - 6. The latter is a multivibrator (DD1-DD2), in the feedback circuit which includes a parallel resonant circuit (L, C). Around the coil inductance L of the circuit is formed of an electromagnetic field, which is registered with an external receiver. In this case, the control LC oscillator the frequency of oscillation is powered using an electric pulse generator stimulation pulses - 5 as a supply voltage. The scheme is implemented on the base of the chip 765 series.

The armature coils can be made of high impact polystyrene oops 1002. The coil can be wound, for example, wire sew-0,1.

In the manufacture of coils on the outer surface of the dielectric sleeve between the electrodes of the pacemaker must be protected from the corrosive environment of the gastrointestinal tract bioinert, radiation transparent sealing material (for example, epoxy glue ED-20).

Introduction LC-generator of high frequency oscillations, driven generator stimulating the x pulses, saves power source little impact on the total time of operation of the pacemaker. Keeping LC-generator of high frequency oscillations, the coil of which is located outside the shielding electrodes of the pacemaker helps to ensure coverage of the signals emitted by LC-oscillator household radios within a radius of up to 1 m

Thus, the introduction of the electrostimulator of gastrointestinal tract new distinctive features have enabled us to achieve a new positive result is the ability to control his health when placed in the body of man or animal.

1. The electrostimulator of gastrointestinal tract, comprising a housing formed by two insulated from each other by the electrodes and the dielectric sleeve into which you installed the generator stimulating pulses coupled to the electrodes, and a power source for it, characterized in that it additionally introduced LC-generator of high frequency oscillations, driven generator stimulation pulses, the coil of which is located outside the shielding electrodes.

2. The electrostimulator of gastrointestinal tract according to claim 1, characterized in that the inductor is made on the cylindrical frame, u is contained inside the shell.

3. The electrostimulator of gastrointestinal tract according to claim 1, characterized in that the inductor is located on the outer surface of the dielectric sleeve between the electrodes and covered with a bioinert, radiation transparent sealing material.



 

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