System of connection with internal ear

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to implants for electromechanical stimulation of internal ear. System of connection with internal ear includes acoustic converter for reciprocal conversion of electric energy and mechanical energy and internal ear catheter, which contains distal tip, made with possibility of vibration interaction with internal ear medium, proximal tip, made with possibility of vibration interaction with acoustic converter, cavity, filled with catheter liquid for transmission of vibration signals between distal tip and proximal tip.

EFFECT: application of invention makes it possible to increase efficiency of implanted prosthetic system.

13 cl, 7 dwg

 

The technical field to which the invention relates.

The present invention relates to medical engineering, in particular implants for Electromechanical stimulation of the filing of the treatment solution to the inner ear.

The level of technology

Some patients have partially or fully impaired hearing due to long-term noise exposure, birth defects, damage due to illness, use of certain medicines such as aminoglycosides, or physical trauma. Hearing loss can be conductive in nature, sensory-neural type, or combinations thereof.

There are several types of implants for the middle and inner ear, which can partially or fully restore hearing. Implants often include various electromagnetic transducers, which can function as an actuator, a sensor and/or switch. An example of the implant with the electromagnetic device can serve as a middle ear implant, which mechanically actuates the auditory chain of three ossicles of the middle ear, which mechanically connects the eardrum to the oval window. Another example of an implant with an electromagnetic device is a middle ear implant, which mechanically actuates the eardrum.

Another minute the implant is based on direct electrical stimulation of the nerves of the inner ear. For example, vnutrividovye electrodes may partially restore hearing through direct electrical stimulation of nerve tissue near the contact electrode. These electrodes are usually placed at the end of the electrode holder, which is inserted into the cochlea. For example, the electrodes are connected with the implanted signal processor which communicates with an external signal processor, which generates an electrical signal stimulation to the implanted electrodes to stimulate the cochlear nerve.

For the treatment of certain disorders of the inner ear is often required is the delivery of therapeutic agents directly into the cochlea. An example of such a system for delivering therapeutic agents to the inner ear is a catheter that is inserted into the cochlea through the round window. In the tip of the catheter it is possible to inject a therapeutic agent that is released into the environment of the inner ear. The catheter may also include a liquid container with solution remedies, which communicated with the environment of the inner ear. On the other hand, the catheter may include a fluid-filled cavity (usually tubular body), which contains a solution of a therapeutic agent, connected with the environment of the inner ear. In more detail the delivery of therapeutic agents to the cochlea is described in patent application U.S. 11/374,505 dated March 13, 2006, the content of which is incorporated herein by reference.

The purpose of the invention to create a more efficiently functioning implanted prosthetic system of communication with the inner ear. In particular, by optimizing the spatial layout of the components of the system, using the perception mechanisms of the mechanical motion of the auditory structures of the middle and/or inner ear, forming a secure, airtight and resistant to bacteria of the interface between the implanted prosthetic system and the environment of the inner ear.

Disclosure of inventions

To achieve the technical result developed system of communication with the inner ear, comprising an acoustic transducer for mutual conversion of electrical energy and mechanical energy and the catheter inner ear, containing the distal tip is made with the possibility of vibration interaction with the environment of the inner ear, the proximal tip made with the possibility of vibration interaction with the acoustic transducer and the cavity filled catheter fluid to transmit the vibration signals between the peripheral tip and a proximal tip. The system may further include a casing filled with liquid and is made with the possibility of vibrational interaction with the proximal tip of the catheter within the indoor ear, the acoustic transducer is placed in the casing. The acoustic transducer may be in the form of the transducer of the floating mass. The distal tip may be possible vibrational interaction with the environment of the inner ear and the proximal tip is made with the possibility of vibrational interaction with the fluid casing, and the casing is provided with a hole for receiving a therapeutic solution and its delivery to the inner ear. The system additionally includes a casing, which is filled with liquid and is made with the possibility of vibrational interaction with the proximal tip of the catheter, while the casing is provided with an outer membrane made with the possibility of vibration interaction with the specified fluid, the acoustic transducer is placed outside the casing and configured to vibration interaction with the specified membrane. The distal tip and the proximal tip can be accommodated in this cavity and respectively hydraulically connected with the environment of the inner ear and the fluid chamber, the housing is equipped with a hole for receiving a therapeutic solution and its delivery to the inner ear. The system may additionally include a microphone connected to the diaphragm casing for the perception of the mechanical movement of the liquid is auditory structures. The distal tip may be placed in the cavity and hydraulically connected with the environment of the inner ear. The cavity may be provided with an opening for receiving therapeutic solution and its delivery to the inner ear. The distal tip of the cavity may contain a distal membrane made with the possibility of vibration interaction with the environment of the inner ear. The acoustic transducer may be applicable to the middle ear of the user. The acoustic transducer can be made with the possibility of application in the outer ear of the user. The acoustic transducer may be accomplished by attaching to the skull of the user. The distal tip of the catheter to the inner ear can be made with the possibility of use in a drum ladder user.

To achieve the technical result developed system of communication with the inner ear, comprising an acoustic transducer for converting electric energy in the signal to mechanical stimulation, electronic module for generating signal electric stimulation of the inner ear, the catheter inner ear, containing the distal tip is made with the possibility of vibration interaction with the environment of the inner ear, the proximal tip made with the possibility vibration the ion interaction with the acoustic transducer, and the cavity, a fluid-filled catheter to transfer the vibration signals between the distal tip and the proximal tip of the electrode matrix, located on a peripheral catheter tip of the inner ear and is electrically connected with the electronic module to stimulate the nervous tissue of the inner ear signal electrical stimulation.

The system may additionally include a casing, liquid filled for vibration interaction with the proximal tip of the catheter to the inner ear, the acoustic transducer is placed in the casing. The acoustic transducer may be in the form of the transducer of the floating mass. The distal tip cavity may be hydraulically connected with the environment of the inner ear, the proximal tip cavity hydraulically connected to the fluid housing, the housing is equipped with a hole for receiving a therapeutic solution and its delivery to the inner ear. The system may additionally include a casing filled with liquid, made with the possibility of vibration interaction with the proximal tip of the catheter, the outer membrane casing made with the possibility of vibration interaction with the fluid housing, the acoustic transducer is placed outside the casing and configured to vibration mutual the action with the specified outer membrane. The distal tip cavity may be hydraulically connected with the environment of the inner ear, the proximal tip cavity hydraulically connected to the casing filled with liquid, the casing is provided with a hole for receiving a therapeutic solution and its delivery to the inner ear. The system additionally includes a microphone connected to the diaphragm casing to the perception of fluid motion hearing structures. Peripheral tip can be placed in the cavity and hydraulically connected with the environment of the inner ear. The cavity may be provided with an opening for receiving therapeutic solution and its delivery to the inner ear. The distal tip of the cavity may contain a distal membrane made with the possibility of vibration interaction with the environment of the inner ear. The acoustic transducer can be made use of in the middle ear of the user. The acoustic transducer can be made use of in the outer ear of the user. The acoustic transducer may be attaching to the skull of the user. The distal tip of the catheter to the inner ear can be made use of in a drum ladder user.

Any of the above examples may also include e-mod is l to generate an electrical signal stimulation of the inner ear and the electrode matrix at the distal tip of the catheter to the inner ear and in electrical communication with an electronic module for stimulation of neural tissue the inner ear by means of an electrical signal stimulation.

Brief description of drawings

The above features of the invention can be easily understood with reference to the following detailed description with reference to the accompanying drawings.

Figure 1 depicts the structure of the normal human ear.

Figure 2 - graphical representation of the example of the present invention.

Figure 3 - illustration of the section of the catheter of the present invention.

4 is a graphical illustration of the transducer inside the shell (enclosing the camera).

5 is a graphical illustration of a casing having the outer membrane, and the Converter is in contact with the membrane.

6 is a graphic illustration of example of the present invention showing the catheter inserted into the cochlea.

Fig.7 depicts the structure of the normal human ear with the device of the present invention, implanted in the cochlea.

The implementation of the invention

In the past, sensors and amplifiers inner ear disposed at the closest possible distance to the structures of the inner ear. But this approach poses many challenges and difficult to implement in practice.

The embodiments of the present invention include a device user with a broader and more accessible location, not necessarily about inside the th ear through the use of a catheter to establish a fluid communication between the inner ear and the system devices. The catheter may be filled with fluid, which transmits vibrations, for example, using a device in the form of holes and partitions. The distal tip of the catheter penetrates the inner ear, and the proximal tip connects with the acoustic transducer. The conclusion of fluid in the catheter isolates it from the environment of the inner ear to avoid leaks and prevent bacterial contamination while ensuring easy mechanical access to the inner ear. The catheter may include a semipermeable membrane at the distal tip to ensure access to medicines, is able to penetrate through the said membrane in the environment of the inner ear. In some versions the proximal tip of the catheter can also be coupled with self-sealing palanimanickam membrane, which allows the introduction of drugs into the liquid of the catheter. For example, the membrane proximal tip can be positioned in the middle ear or mastoid cavity to activate or sensing fluid catheter. In some embodiments, the membrane can be practical to connect to a microphone, which probes the mechanics of the environment associated with auditory structures of the middle and/or inner ear.

Thus, constructive ways infusion is his invention provide a secure and tight, resistant bacteria the interface between implanted prosthetic system and the environment of the inner ear.

Figure 1 shows the anatomical image of the normal human ear. Normal ear transmits the sound through the outer ear 101 to the eardrum 102, which drives the three ossicles of the middle ear 103, which in turn stimulates the cochlea 104. The cochlea, or inner ear 104 includes an upper channel or duct, known as the stair vestibule 105, and the lower channel called drum ladder 106; these channels are connected to the cochlear duct 107. In response to the sounds of the stapes, a bone of the middle ear 103, transmits vibrations through the oval window 114 to the perilymph (the environment of the inner ear) of the cochlea 104. Fluctuations in the environment of the inner ear are spread from rotondaro (round) window 115. As a result, excited hair sensory cells of the spiral organ of Corti with the initiation of electrochemical impulses that are transmitted to the cochlear nerve 113 and finally to the brain.

Figure 2 is a graphical illustration of a variant of the invention, showing the location of the transducer and the catheter. Figure 3 shows the incision in the image section of the catheter to the inner ear. In this version, the acoustic transducer 200 is connected with the proximal tip of the catheter 202 of the inner ear. P is vodka 204 may connect the acoustic transducer 200 to the external circuit. The inlet opening 206 provides fluid access to the cavity 210 of the catheter within the catheter 202 of the inner ear. The catheter 202 of the inner ear may also include electrode 214, which passes along the length of the catheter. Acoustic Converter 200 converts electrical energy into mechanical vibrations and Vice versa. For example, the acoustic transducer 200 may create fluctuations in the hearing range of humans. The cavity of the catheter 210 fluid-filled catheter 212 (for example, through the hole in the septum 206), which can transmit waves generated by the acoustic transducer 200 and transmitted to the environment of the inner ear.

The acoustic transducer 200 is connected to the proximal tip of the catheter 202 of the inner ear so that the generated acoustic transducer 200 vibrations are transferred to the liquid 212 of the catheter. The acoustic transducer 200, the cavity of the catheter 210 and the liquid 212 of the catheter so connected that a sufficient amount of mechanical energy generated by the acoustic transducer 200 and is transmitted by the fluid 212 to the distal tip of the catheter and then in the environment of the inner ear, which is probing them as sound. On the other hand, the movement of the medium created by the stapes in the inner ear, can be transmitted through the liquid 212 of the catheter and senderbase Chu is responsive membrane (for example, the membrane of the microphone)associated with the acoustic transducer 200.

Wednesday 212 of the catheter can introduce artificial perilymph or saline solution, when the cavity of the catheter 210 is communicated with the environment of the inner ear. If the distal tip of the catheter 202 of the inner ear should be placed in the environment of the stairs, then the liquid 212 of the catheter can be used as a practical artificial endolymph. Fluid boats 212 may be any liquid which facilitates the transfer of mechanical energy. The catheter 202 of the inner ear may be at least partially in the form of a channel passing through implanted in the cochlea, the electrode or catheter 202 of the inner ear may submit a separate catheter in parallel with the electrode implanted in the cochlea. The catheter 202 of the inner ear can be made of an incompressible material to optimize the transmission of fluctuations in fluid 212 with a minimum loss of energy. Fluid volume 212 of the catheter can almost be reduced to maximize the transmission of mechanical vibrations in the fluid of the catheter between the distal and proximal ends of the catheter 202 of the inner ear. The cavity of the catheter 210 may communicate with the environment of the inner ear, or it may be at least partially closed sensitive membrane, for example a bacterial filter is. This membrane can also prevent the movement of the protein from the environment to the inner ear through the catheter 210 and slow down other diffusion processes. The membrane may be self-sealing and/or preparatoy to provide a semi-permeable access to medicines.

Figure 4 shows another arrangement of the transducer, where the transducer 200 is located within a fluid-filled casing (camera) 300, which is so located that generated by the Converter 200, the vibrations are transferred to the liquid in the casing. The hole 302 partition can be used to access fluid in the casing 300. The hole 302 allows you to fill the casing 300 and the catheter 202 of the inner ear fluid of a selected composition. The problem lies in the possibilities of filling the catheter 202 of the inner ear fluid for optimum connection of the acoustic transducer 200 and environment of the inner ear, and provide effective sealing between the middle ear and the inner ear. The catheter 202 of the inner ear is connected to the housing 300 so that the generated acoustic transducer 200 mechanical vibrations are transmitted through the fluid housing to the fluid 212 of the catheter. The liquid in the casing 300 may be in liquid communication with the liquid 212 of the catheter. Generated by the acoustic transducer 200 volume is Bane transmitted through the liquid 212 of the catheter to the environment of the inner ear. In this device, the acoustic transducer 200 may be, for example, the Converter floating mass in the form of the oscillator of the FM transmitter.

Figure 5 shows another device of the Converter, including the casing 300. As in example 4, the catheter 202 of the inner ear is connected to the housing 300 so that the mechanical vibrations are transmitted through the fluid housing to the fluid 212 of the catheter. The hole 302 may be used to fill the catheter 202 of the inner ear fluid 212 of the catheter and for providing access to the fluid casing 300 through the opening 302. The liquid in the casing 300 may be in liquid communication with the liquid 212 of the catheter. In this example, the cover 300 includes a membrane 400, through which vibrations can be transmitted to the fluid housing (Figure 5). The acoustic transducer 200 is located outside the casing 300 and is mounted with respect to the membrane 400 so that the generated acoustic transducer 200 mechanical vibrations are transmitted through the membrane 400 through the fluid housing to the fluid 212 of the catheter. These vibrations are then transmitted through the liquid 212 of the catheter through the distal tip of the catheter to the environment of the inner ear.

6 is a graphic illustration of a common variant of the present invention showing the catheter of the inner ear, entered into the cochlea 104 of the patient. In this embodiment, and actionsi Converter 200 may be located within the enclosure 300 in embodiment 4. The acoustic transducer 200 may be located outside the casing 300 and mounted relative to the membrane 400 as in embodiment 5. The membrane 400 may also be used, for example, to monitor the outlet of the acoustic transducer 200, when it is located within the enclosure 300. The membrane 400 may be also selected from a porous material so that drugs can be injected into the internal environment for delivery through the fluid catheter 212 to the inner ear. He is also mounting bracket 504, which can be used for mounting an acoustic transducer 200 to another site or in another configuration directly to the bones (e.g. skull) or other structures in the ear. In the above embodiment, the catheter 202 of the inner ear also includes the membrane of the catheter 500 and the electrode matrix 502. The membrane of the catheter 500 transmit vibrations of the acoustic transducer 200 from the liquid 212 of the catheter to the environment of the inner ear. In other embodiments, the membrane of the catheter 500 may provide openings or selected porous membranes that allow the delivery of drugs in liquid 212 of the catheter to the environment of the inner ear. The electrode matrix 502 is connected with the electrode 214 and is used for electrical stimulation of neural tissue internally is his ear. In such a device electrode wiring 214 can communicate with an implanted sound processor under the patient's skin around the external ear.

7 shows the structure of the ear along with an implanted into the cochlea of the device of the present invention. The catheter 202 is inserted into the inner ear drum ladder 106 of the cochlea 104 through a round window 115. Depicts the transducer 200 inside the middle ear.

Wiring 204 can be used to connect the acoustic transducer 200 and the electrode matrix 502 with another schema. For example, the electrode matrix 502 may be connected through wiring 204 with an implanted sound processor 600, located under the skin around the external ear. Sound processor 600 receives the audio signal and generates an electrical stimulation signal, which is transmitted to the electrode matrix 502 through the wiring 204 for electrical stimulation of neural tissue of the inner ear. Sound processor 600 includes electronic components for the perception of sound input from the sound source. In various embodiments, sound processor 600 receives analog signals, digital signals, or both. Without any restrictions audio input can be analog or digital output, microphone, phone, TV, stereo, mp3 player, radio or computer. Sound the new input may be by wire or wireless means.

Despite the description of the system of the invention, it is not exhaustive of the invention and does not limit the invention disclosed here are examples of its implementation. Specialists in this field it is clear that it is possible to modify the present invention without going beyond the scope and essence of the invention. For example, although the examples showed, basically, a system to transmit generated by the transducer vibrations to the inner ear, the transducer may also be used to detect vibrations in the environment of the inner ear through the liquid of the catheter. Although the examples given include a wired connection to connect the various parts, it is optional. This connection can be wireless and details can be arbitrary. It is assumed that the scope of the invention should be determined by the attached points of the invention and their equivalents.

1. Communication system with the inner ear, including the acoustic transducer 200 for mutual conversion of electrical energy and mechanical energy and the catheter 202 of the inner ear, containing the distal tip is made with the possibility of vibration interaction with the environment of the inner ear, the proximal tip made with the possibility of vibration interaction with the acoustic transducer 200 cavity 210, fluid-filled catheter 212 to transmit the vibration signals between the distal tip and a proximal tip, and the cover 300, which houses the acoustic transducer 200 in the midst of the fluid that fills the casing 300, and which is connected with the possibility of vibrational interaction with the proximal tip of the catheter 202 of the inner ear.

2. The system according to claim 1, in which the acoustic transducer 200 is made in the form of the transducer of the floating mass.

3. The system according to claim 1, in which the distal tip is configured to vibration interaction with the environment of the inner ear 104 and the proximal tip is made with the possibility of vibrational interaction with the fluid casing, and the casing is provided with a hole 302 for receiving medical solution and its delivery to the inner ear 104.

4. The system according to claim 1, in which the casing 300 is equipped with outer membrane 400 is made with the possibility of vibration interaction with the specified fluid.

5. The system according to claim 4, in which the distal tip and the proximal tip is placed in the specified cavity 210 and respectively hydraulically connected with the environment of the inner ear 104 and the fluid casing, and the casing is provided with a hole 302 for receiving therapeutic solution and its delivery to the inner ear 104.

6. The system according to claim 4, in which the complement is Ino contains the microphone, coupled with membrane 400 casing for the perception of the mechanical motion of the liquid auditory structures

7. The system according to claim 1, in which the distal tip is placed in the cavity 210 and hydraulically connected with the environment of the inner ear 104.

8. The system according to claim 7, in which the cavity 210 is equipped with a hole 302 for receiving therapeutic solution and its delivery to the inner ear 104.

9. The system according to claim 1, in which the distal tip 210 of the cavity contains the distal membrane 500 made with the possibility of vibration interaction with the environment of the inner ear.

10. The system according to claim 1, in which the acoustic transducer 200 is configured to use in the middle ear of the user.

11. The system according to claim 1, in which the acoustic transducer 200 is configured to use in the outer ear of the user.

12. The system according to claim 1, in which the acoustic transducer 200 is configured to mount to the skull of the user.

13. The system according to claim 1, in which the distal tip of the catheter 202 of the inner ear is made with the possibility of use in a drum ladder user.



 

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74 cl, 11 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to devices for electrical stimulation of a vagus nerve. A device is designed so that it is completely enclosed in a vertebrate animal's auricle and comprises a body with an electronic control unit. For power or friction fixation of the device in the auricle, the body has two bent, wire-like and spring-actuated segments. A body comprises an electric excitation generator, and both bent, wire-like segments have matched electrodes for excitation application to a skin surface. The body comprises a parameter measurement device, namely a physiological, pathophysiological or physical parameter, and both bent, wire-like segments represent coil spring holders.

EFFECT: use of the invention provides higher effectiveness of nerve stimulation and simplifying the measurement process.

12 cl, 9 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices for electric stimulation of heart muscle, and represents endocardial ventricular electrode. Electrode contains case, current-conducting wire in form of spiral with contact head on distal end, isolation sleeve with contact plug on proximal end of wire, guiding bush and conductor in form of stiletto-mandrin. Guiding bush is installed with possibility of introduction inside of spiral stiletto-mandrin, whose distant end is made sickle-shaped with bend radius 7-10 mm in circumference plane. Tip of stiletto-mandrin is directed non line, parallel to stiletto-mandrin.

EFFECT: application of invention makes it possible to reduce time of electrode installation, reduce number of intra-operation complications and simplify construction.

FIELD: medicine.

SUBSTANCE: invention refers to devices and methods for internal ear electrostimulation. A device comprises an implantable electrode carrier having an outer side whereon a contact block for surrounding nerve tissue electrostimulation is arranged, a divergent fluid tank of the diameter making at least a one-third portion of the diameter of the electrode carrier, provided in the electrode carrier for a fluid drug for a prolonged therapeutic period, and at least one fluid delivery port coupling said tank and the outer side of the electrode carrier for fluid drug delivery from said tank to said outer side. A method of fluid drug delivery to tissue surrounding the implantable device consists in using the implantable device.

EFFECT: use of the invention allows minimising the destruction of internal ear structures and providing higher quality of stimulation and efficacy of drug delivery.

18 cl, 56 dwg

FIELD: medicine.

SUBSTANCE: system comprises non-implanted and implanted parts connected by magnetic inductive coupling. The implanted part contains a transceiver, a programmed master microcontroller, a first signal transform unit accommodating a digital-to-analogue converter and a power amplifier, a switching unit connected with electrodes via operating outputs to form stimulation channels. Besides the system contains at least one electrode, a second signal transform unit and a neutral electrode. At least one stimulation channel contains additionally a frequency modulator connected to the operating output of the switching unit and connected with a pair of electrodes. One of these electrodes is implanted in the cerebrospinal afferent pathway above an injury and connected to an output of the frequency modulator, and the second one is implanted in the cerebrospinal afferent pathway below the injury and connected to an input of the frequency modulator and to an operating input of the switching unit. At least one stimulation channel contains additionally a frequency modulator connected to the operating output of the switching unit and connected with a pair of electrodes. One of these electrodes is implanted in the cerebrospinal efferent pathway below the injury and connected to the output of the frequency modulator, and the second one is implanted in the cerebrospinal efferent pathway above the injury and connected to the input of the frequency modulator and to the operating input of the switching unit. At least one stimulation channel contains an electrode connected with an operating output of the switching unit and implanted in an axon of the effector neuron. The programmed master microcontroller accommodates a power supply. The first signal transform unit contains in addition the second digital-to-analogue converter and the second power amplifier. The second signal transform unit contains the power amplifier and an analog-to-digital converter.

EFFECT: restored cerebrospinal conduction and enhanced body function activation system.

5 cl, 3 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, particularly to apparatuses for treating functional disturbances of the rectal obturator by simultaneous electric stimulation of the rectal, sphincter and perineal muscles. The apparatus comprises a ball body resting on a flan of a holder provided with an end-to-end gallery, and electrodes connected to a power supply. The ball body length is 0.3-0.4 of the lengths of the apparatus. The flange of the holder is cylindrical, and a metal disk is put thereon with its convex surface turned to the ball, and electrodes are mounted on the body and metal disk.

EFFECT: invention use allows improving clinical effectiveness due to simultaneous electric stimulation of all rectal-anal masses.

1 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices for evaluation of cardio-vascular system state. Device contains cable with distal head, carrying piezoelectric converter, on which by means of fastening element electrode unit, including bipolar electrode, is installed. Contact of (+) bipolar electrode polarity is fixed, contact of (-) polarity is made movable along cable contact of (-) polarity, element of electrode unit fastening consists of two locking rings, one of which has groove for movement of conductor of contact with (-) polarity.

EFFECT: application of invention allows to perform transesophageal examinations with simultaneous electric stimulation of artria from different positions.

2 dwg

FIELD: medicine; cardiosurgery.

SUBSTANCE: invention relates to medicine, namely to cardiosurgery and can be used in early post-operative period after cardiosurgical operations for prevention of auricle fibrillation. For this purpose after performing main stage of operation at the background of artificial blood circulation two electrodes are sewn to right auricle myocardium. After finishing operation during early post-operative period bipolar electric stimulation is carried out through said electrodes with frequency exceeding spontaneous rhythm frequency on 10 impulses a minute. Simultaneously continuous intravenous infusion of amyodarone (cordarone) solution is performed at rate 5.2 mkg/kg/min.

EFFECT: efficient prevention of auricle fibrillation and development of cardiac insufficiency, caused by sinus tachycardia.

1 tbl, 1 dwg

FIELD: medicine.

SUBSTANCE: invention relates to electric neurostimulators. Stimulation system, containing stimulator, which has multi-channel matrix of electrodes, using monopolar electrode configuration. Processor is functionally connected to stimulator. Processor is made with possibility to determine sequence of canal interaction (CI) with application of simultaneous, concerted by pulse sign and canal interaction compensation. CI sequence has rhythm and average CI pulse amplitude, and forms resulting potentials, which are equivalent to desired potentials in specified positions relative to multi-channel matrix. CI sequence can contain time intervals between pulses, processor being made with possibility to increase rhythm of CI pulses in such a way that time interval between pulses is reduced. In addition, processor is made with possibility to reduce amplitude of CI sequence amplitude with increase of pulse phase duration, so that the charge carried by each pulse remains unchanged and time interval between pulses is reduced.

EFFECT: application of invention makes it possible to reduce energy consumption during stimulation and reduce implant supply voltage.

20 cl, 11 dwg

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