SU731975A1 - Electrical stimulator - Google Patents

Description

I

The invention relates to the medication of the medication device and can be used for the electrical stimulation of osteogenesis in the treatment of fractures and false joints of bones.

An electrostimulator containing a master oscillator, electrodes, a multichannel impulse distributor, whose input is connected to the generator output, a power source and current regulators, is known.

However, this stimulator stimulates only by pulsed current.

The purpose of the invention is to shorten the treatment of fractures and false joints by improving osteogenesis processes.

For this, the electrostimulator has an additional power source and ballasts, with both power sources connected to the electrode implanted into the bone through current regulators, and each channel of the distributor and the additional source

the power supply is connected to one of the skin electrodes via ballasts.

FIG. 1 shows a structural diagram of an electrostimulator; in fig. 2 time diagrams of the electrostimulator operation.

Electrical tzz contains sources 1 and 2 of power, master oscillator 3, multichannel distributor 4 pulses, the first group of ballast resistances 5 and 6, cutaneous electrodes 7 and 8, regulator tor 9 and 10 of the current, the second ballast resistance 11 and 12, implanted into bone electrode 13.

Claims (1)

Electrostimulator osteogenesis works as follows. The pulses of the master oscillator 3 are fed to the unit of the multichannel distributor of 4 pulses. At the outputs of the distributor are formed by the number of channels mismatched in time sequence of pulses, which through the ballast resistance 5 and 6 are applied to the skin electrodes 7 and 8. The constant voltage from the additional power source 2 through the ballast resistance 11 and 12 also goes to the electrodes 7 and 8 The electrode 13 implanted into the bone through current regulators 9 and 10 connects to the patient the sources 1 and 2 of the power supply. When an electrostimulator is connected to the patient, the passage of stimulating currents is closed through biological tissues. At the same time, due to the presence on the cutaneous electrodes 7, 8 of non-coinciding pulse sequences, the duty cycle of which is greater than the duty cycle of the generator signal 3 times the number of channels, the average density of the pulse currents for each of the skin electrodes decreases by the same number as promotes soft tissue relaxation c. the area of the anode electrodes. However, the average continuous-current density also varies in a similar way. However, on electrode 13, the average current density of both constant continuous and constant pulsed is kept at a sufficiently high level due to a cumulative effect. Ballasts 5, 6, 11 and 12, the magnitudes of which are 1 to 15 times greater than the resistance of a biological object, provide stabilization of the effective currents, the magnitude of which varies with current regulators 9 and 10 from units to tens of microamps. An electric stimulator containing a master oscillator, electrodes, a multichannel pulse dispenser, whose input is connected to the generator output, a power source and current regulators, characterized in that, in order to shorten the treatment of horn and false joints by improving osteogenesis processes The electric stimulator has an additional power source and ballast resistances, with both power sources connected to the electrode implanted into the bone through current regulators, and each channel is distributed eaten pulse and the additional power supply is connected with one of skin electrodes through ballast resistances. Sources of information taken into account in the examination 1. USSR author's certificate No. 302127, class A 61l4 1/36, 1970 (prototype). ajnjTjnj jnj ijnj jn rL r ig.1 L.