SU1039507A1 - Implanted electrostimulating device - Google Patents

Abstract

IMPLANTABLE ELECTRIC STIMULATOR, containing a power source and series-connected pulse generator connected to it. a bit switch, a capacitor and an output unit, characterized in that, in order to increase its service life, it is provided with a charging circuit consisting of a first switch and a second switch connected in series with a second switch and an inductor whose outputs are connected to a capacitor, and also connected in series by a pulse shear selector, a single vibrator and a control circuit connected to the keys of the charging circuit, the generator is connected to the pulse cutter selector and the single vibrator, the control circuit and the charging circuit are connected to the source Itani .i

Description

The invention relates to medicine, in particular, to implantable electrostatic precipitators. .

Implantable electro-stimulators are known, which include a power supply, a pulse generator, a discharge switch and a capacitor 1.

A disadvantage of the known devices is the low service life.

An implantable electro-stimulator is known, comprising a power source, a pulse generator, a discharge switch, a capacitor, and an output unit 2...

A disadvantage of the known device is the low service life.

The purpose of the invention is to increase the service life.

To achieve this goal, an implantable electrostimulator containing a power source and connected, in series with it, a pulse generator, a discharge switch, a capacitor and an output unit, is provided with a charging circuit consisting of a first switch and a series connected second switch and inductance coil, the outputs of which are connected to a capacitor, as well as sequentially connected to a pulse shear selector, a one-shot and a control circuit connected to the keys of the charging circuit. The generator is connected to the pulse shear selector, and the one-shot, control circuit and charging circuit are connected to a power source.

The drawing schematically shows the proposed device. The electrostimulus tppr contains, a pulse generator 1, a discharge switch 2, a capacitor 3, a bus 4, an output unit 5, an electrode 6, a selector 7 for cutting the pulse one-shot 8, a control circuit 9, keys 10 and 11, a charging circuit 12, a bus 13 power supply and inductance coil 14.

The electrostimulator works as follows.

The pulse generator 1 generates a sequence of pulses,

entering the input of the discharge key 2. During the duration of the pulses, the discharge key 2 is open and the capacitor 3 is discharged through the discharge key 2, the output unit 5 and the stimulated object (Pnb located between the thickness 4 and the electrode B. In the pause between the discharge pulses The dongle 2 is closed. A pulse is generated at the output of the pulse selector 7 that triggers the one-shot 8 and coincides with the pulse-cut at the output of the pulse generator 1. The pulse duration at the output of the one-shot .8 is determined by stopping the charging current through the coil 14 in During this duration, the control circuit 9 provides at the inputs (gates) of the keys 10 and 11 with respect to the sources (bus 4 and bus 13) or twice the voltage of the power source, which creates the necessary conditions for opening the keys 10 and 11 The capacitor 3 is charged on the circuit: the second key 10, the coil 14 of inductance, the first key 11

In this case, the ratio of dissipated energy to accumulated energy is not equal to 1, as in the case of charge through active resistance, but the ratio RVc is determined.

where R is equivalent

by the perception

zrc

the resistance of the keys 10 and 11 and the ohmic resistance of the inductor 14; C - the value of the capacitor capacitor 3; C is the value of inductance of coil 14. With appropriate selection of the necessary parameters, it is easy to obtain the voltage across the capacitor 3, which is higher than the voltage of the power source due to the oscillatory transient process. By reducing the voltage on the bus 13 due to the discharge of the power source, the output voltage of the device is greater than that of the known electrical stimulators, which makes it possible to increase its service life.

Claims (1)

IMPLANTED ELECTRICAL STIMULATOR containing a power source 'and connected in series with a pulse generator, a discharge key, a capacitor and an output unit, characterized * in that, in order to increase its service life, it is equipped with a charging circuit consisting of the first key and connected in series the second key of the inductance coil, the outputs of which are connected to the capacitor, as well as connected in series to the pulse cutoff selector, one-shot and the control circuit associated with the keys of the charging circuit, When in use, the generator is connected to the selector 'slice pulse and the monostable control circuit and charging circuit connected to the power source. !