CZ292197A3 - Electric stimulation means for digestive tract - Google Patents

Abstract

The invention relates to the medical equipment and can be used, for example, in post-surgical therapy in outpatient clinics and in hospitals, as well as prophylactic measure at alimentary tract diseases. Essence: an electrical stimulant contains capsule (1), in which consecutively connected unit (5) for testing parameters of external medium and pulses driver (6), connected to power supply (3), are located. Electrodes (4) are provided on the external surface of capsule (1), total in number (2 + n), where n = 0, 1, 2, ..., and is defined by a degree of healing effect for some or other disease and technological possibility of the electrodes manufacture. Electrodes (4) are connected with the output of pulses driver (6) and also with inputs of unit (5). In case of multi-electrodes form of the electrical stimulant two electrodes only are connected both with the unit (6) and the unit (5).

Description

Electric stimulant for the digestive tract

Technical field

The present invention relates to medicine and medical equipment and can be used in the postoperative period for the rehabilitation of sick people suffering from poor internal organ function located close to the digestive tract as well as all parts of the digestive tract by soft mouth therapy. The invention may also be recommended as a preventive measure in various types of gastrointestinal diseases for use in hospitals and outpatient treatment as well as for use by patients themselves as recommended by the physician.

BACKGROUND OF THE INVENTION

Nowadays, the treatment and restoration of various weakened parts of the gastrointestinal tract as well as of the internal organs functionally associated with the digestive tract is a problem worldwide.

Applying soft therapy using an electrical stimulus at a qualitatively new level is one way to solve this problem.

An electrical stimulant for the gastrointestinal tract is known which comprises lead tubes with electrodes disposed thereon (inventor certificate SU 1389776, IPC A 61 M 25/00, A 61 B 5/04 of 23 April 1988).

This electrical stimulant may only be used in hospitals and specially trained personnel; exists • · · · ···· 4

And a certain likelihood of injury to the patient during insertion and removal through the nasopharynx of the device with all additions including electrodes. Its efficiency may be insufficient because of its narrow range of action.

The digestive tract electrical stimulant described in the inventor's certificate SU 936931, IPC A 61 N 1/36 of June 23, 1982, may be considered closest to the claimed invention according to the summary of its essential characteristics. The electrical stimulation means comprises a capsule with an internal power supply and a pulse generator. The capsule shell is in the form of two electrically insulated electrode parts which, upon swallowing the capsule, contact the intestinal walls.

The electrical stimulant works as follows.

A series of rectangular pulses of predetermined parameters from the generator to the electrodes in contact with the intestinal walls, acting on them and causing a peristaltic wave response that transports the electrical stimulant and intestinal contents to the distal portions where the process repeats until the capsule exits digestive tract natural way of anus.

However, the known electrical stimulant has a relatively low electrical stimulation efficiency because the electric field of the two electrodes corresponds only partially to the morphology of the digestive tract muscle fiber and because there is no adaptation of the stimulation to different parts of the digestive tract. In addition, it is characterized by inefficient power consumption that can affect operational reliability. In addition, the lack of adaptation of stimulation to the conditions of the various parts of the gastrointestinal tract can lead to side effects on

···· patient's body • · * ·· ·

The lack of electrical stimulation efficiency, due to the lack of adaptation of stimulation to conditions existing in different parts of the gastrointestinal tract, is explained by the fact that each part of the digestive tract that the electrical stimulant passes through has its own peculiarities:

- morphological characteristics (geometric dimension, direction, etc.);

- its own certain pH values which determine the functional and physiological purposes of the part.

The known electrical stimulant produces electrical pulses with intermediate parameters that are not optimized for each part of the tract.

The relatively low electrical efficiency by partially adjusting the electrical to the morphology of the digestive tract muscle is explained as follows. Muscle tissue contains outer longitudinal and inner circular layers. The electrical effect on these layers requires electric fields having varying parameters of the orthogonal direction of intensity, the use of the known electric known electrical stimulating electric field of two electrodes essentially only the longitudinal muscle layer, i.e. the peristaltic wave is not or rarely unstable character, which reduces the effectiveness of electrical stimulation.

suitable and / or available means. of the composition i

When moving, stimulation stimulates an array of two caused by electrodes that are not pacing

The low reliability of the known electrical means due to inefficient consumption is explained by the inability to minimize the consumption of the passive storage state, since the known stimulating energy is the energy in the electrical energy.

Also, the stimulant is permanently in a dynamic state of operation from the moment it is produced and further during storage and after introduction into the patient's digestive tract.

SUMMARY OF THE INVENTION

The invention is directed to solving the following problems:

- design of an electrical stimulus that provides electric fields having variable parameters as well as electric fields whose intensity direction is orthogonal to one another,

- minimizing energy consumption in the state of storage and consequently improving reliability.

SUMMARY OF THE INVENTION The electrical digestive stimulant means comprises a capsule with two electrodes on the outer surface of the capsule and a power supply located therein, wherein the environmental parameter testing unit and the pulse exciter that are sequentially connected are additionally placed in an electrode capsule, where the number n = 0, 1, 2, ... and is defined by the degree of healing effects for those and those diseases and the technological possibility of the electrode manufacturer, is on the outer surface of the capsule, electrodes are connected to pulse exciter outputs and two electrodes are also connected to the inputs of the unit for testing environmental parameters.

In addition, the capsule can be made in the form of a tubular element with covers each of which is at the opposite end of the tubular element, which is provided with electrodes located on the cylindrical surface.

In addition, the capsule can be made in the form of two interconnected caps, each having electrodes positioned on the capsule.

• 9 • 999 •

9 9 9 surface.

It is so clear from the technical nature of the invention that the electrical stimulant can be produced in a two-electrode as well as a multi-electrode form.

Regarding the newly introduced units, this is an additional use of the environmental testing unit associated with the pulse exciter and the electrodes providing feedback in the power supply circuit of the electrical stimulus device.

Unit records infinity storage, unit, for testing the parameters of resistance between electrodes, electrical and output which corresponds to the external environment which is in the state of the state of the frequency of the blinking blocks the state of the pulses of the pacing signal time for operating

The electrical stimulant thus consumes minimal energy in the non-working position. When the electrical stimulator enters the gastrointestinal tract, anus, or vagina, the resistance is reduced to a few kiloohms (kQ) and the output signal of the environmental test unit coming to the pulse driver control input allows the pulse driver to be triggered and let it go to work. state of electrical stimulation.

The pulse exciter provides a series of pulses with desired parameters depending on the pH value of the external environment.

A microprocessor can be used as a pulse driver to store the necessary number of pacing parameter groups.

Two electrodes are used not only for electrical stimulation, but also - during a break between a series of pulses - to measure resistance

between them in both a two-electrode and a multi-electrode form of the electrical stimulant.

In the two-electrode form of the electrical stimulator, the pulse driver signals on the electrodes create a two-phase orthogonal change in the electric field vector. The parameters of the stimulating pulses may vary during passage of the stimulant through the digestive tract, depending on the pH of the external environment.

In the multi-electrode form of the electrical stimulator, the pulse exciter signals on the electrodes produce a multi-phase electric field with discontinuities n1, where n is the number of electrodes. In this case, the parameters of the pacing pulses may also change during the passage of the electrical stimulant by the digestive tract.

BRIEF DESCRIPTION OF THE DRAWINGS

The essence of the invention is explained in the figures in which:

Fig. 1 shows a functional electrical diagram of the electrical stimulator in a two-electrode form; Fig. 2 shows a constructional design of the electric stimulator with a capsule designed in the form of a tubular element with covers each at the opposite end of the tubular element with one electrode positioned on the cylinder line; Fig. 3 is a constructional design of an electrical stimulant with a capsule designed in the form of two interconnected caps, each having electrodes disposed on a generating cap line (multi-electrode form); '* »<<<

Fig. 4 is an electrical diagram of a unit for testing environmental parameters, an example for a two-electrode form of an electrical stimulator; Fig. 5 is an electrical diagram of a pulse exciter, an example for a multi-electrode form of an electrical stimulator.

The electrical diagrams of the embodiment of these blocks and related thereto, the applicant's claims.

in the description, limit freedom and 5 are examples of possible as well as explanatory text in no way can the Applicant have to use other embodiments of the units represented in Fig. 4 and Fig. 5

DETAILED DESCRIPTION OF THE INVENTION

The proposed digestive stimulant comprises a capsule 1 in which the electronic block 2 and a power supply 3 are placed. The electrodes 4 are on the outer surface of the capsule 1, the total number of electrodes being equal to (2 + n) where n = 0, 1 , 2, .... The electronic block 2 comprises a sequentially connected unit 5 for testing environmental parameters and a pulse driver 6.

The electrodes 4 in the two-electrode form are connected to the outputs of the pulse exciter 6 and to the inputs of the external environment parameter testing unit 5, and in the multi-electrode form only the two electrodes 4 are connected to the inputs of the unit 5.

The capsule 1 may be made in the form of a tubular element 7 with covers 8, each of which is at the opposite end of the tubular element with a plurality of electrodes 4 (not shown) disposed on the line forming the cylinder. The housings 8 may be hemispherical, domed or other forms.

The capsule 1 may be made in the form of two interconnected lids 9, each of which is provided with a plurality of electrodes 4. The lids 9 may be of conical or other shape.

The environmental testing unit 5 can be made in the form of a resistance at the electrodes 4 of the measuring block and comprises a voltage divider 10 connected to the power supply 3 and has outputs connected to a pair of differently polarized electrodes 4 and a comparator 11. connected via a resistor 12 to the power supply 2 and not the inverting input to the output of the voltage divider 10.

The output of the comparator 11 is the control input of the pulse exciter 6.

The pulse driver 6 may include three-position linear switches, allowing each electrode 4 to be powered from the power supply 3. level + or, as well as disconnecting them from the power supply, pulses in a serial splitter comprising a counter 15 and an encoder 16 with counter output and unused switch blocking, a controlled frequency divider 17 allowing the formation of a pulse train from a necessary number of pulses to a series with a repetition rate close to the natural peristaltic wave frequency, and a monitoring synchronizer 18 generating a frequency necessary to ).

The electrical stimulant works as follows (this is an example for a multi-electrode form as a form more complex to understand its function).

* · ··· *

The electrical stimulant enters, for example, into the patient's gastrointestinal tract by mouth, i.e., swallowing.

In the initial state (before entering the gastrointestinal tract), the electrical stimulation means is in a non-operative position in which the voltage from the voltage divider 10 blocks the pulse driver 5 through the environmental parameter testing unit 5.

After the capsule 1 enters the gastrointestinal tract, the voltage from the voltage divider 10 drops due to the external environment (saliva, gastric juice, etc.) and the external environmental parameter testing unit 5 comes to a state allowing the pulse exciter 6 to be triggered.

A series of pulses, the parameters of which are determined by the pH value of the external environment, comes from the pulse driver 6 to the electrodes 4. Thus, the pulse driver 6 performs such switching of electrodes 4 for each pulse row. switching allows the activation of e.g. polarized electrodes from the same opposing electrode groups. Such mutually orthogonal directions of electric field strength allow simultaneous or sequential excitation of the longitudinal as well as circular layers of muscle tissue irrespective of the orientation of the capsule in any part of the digestive tract, which substantially increases the electrical stimulatory efficiency. The electrical action on muscle tissue causes a response in the form of a stable peristaltic wave that transmits the electrical stimulant and contents of, e.g., the gastrointestinal tract to the distal portion, which is affected by the following series of pulses, and repeats until the capsule naturally.

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Claims (3)

PATENT CLAIMS A gastrointestinal electrical stimulant comprising a capsule with two electrodes on the outer surface of the capsule and a power supply located therein, characterized in that the environmental test unit and the pulse exciter which are sequentially connected are additionally placed in the capsule , an electrodes, where the number n = 1, 2, ..., and is defined by the degree of healing effect for some or other diseases and technological possibility of the electrode manufacturer, is on the outer surface of the capsule, electrodes are connected to the pulse exciter output and two electrodes of the total number of electrodes are connected to the inputs of the unit for testing environmental parameters. 2. The digestive tract electrical stimulator of claim 1, wherein the capsule is made in the form of a tubular element with covers each at the opposite end of the tubular element provided with a plurality of electrodes disposed on the forming line of the cylinder. The digestive tract electrical stimulator of claim 1, wherein the capsule is made in the form of two interconnected lids, each of which is provided with a plurality of electrodes disposed on the forming line of the lid.