CN113230541A - Sacral nerve stimulation device - Google Patents
Sacral nerve stimulation device Download PDFInfo
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- CN113230541A CN113230541A CN202110733118.5A CN202110733118A CN113230541A CN 113230541 A CN113230541 A CN 113230541A CN 202110733118 A CN202110733118 A CN 202110733118A CN 113230541 A CN113230541 A CN 113230541A
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- A—HUMAN NECESSITIES
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- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36007—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of urogenital or gastrointestinal organs, e.g. for incontinence control
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0551—Spinal or peripheral nerve electrodes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/3606—Implantable neurostimulators for stimulating central or peripheral nerve system adapted for a particular treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/3606—Implantable neurostimulators for stimulating central or peripheral nerve system adapted for a particular treatment
- A61N1/36062—Spinal stimulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/36125—Details of circuitry or electric components
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/36128—Control systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/36128—Control systems
- A61N1/36135—Control systems using physiological parameters
- A61N1/36139—Control systems using physiological parameters with automatic adjustment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- Health & Medical Sciences (AREA)
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- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
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- Physiology (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Electrotherapy Devices (AREA)
Abstract
The invention discloses a sacral nerve stimulation device, which comprises a stimulation electrode, a pulse generator and an intelligent terminal, wherein the stimulation electrode is used for stimulating a load object, the pulse generator is in communication connection with the intelligent terminal, the intelligent terminal comprises a processor module, a communication module and a display module, the stimulation electrode is electrically connected with the pulse generator, the pulse transmitter is internally provided with a sacral nerve stimulation module, a spinal nerve stimulation module and a sphincter stimulation module, and the spinal nerve stimulation module comprises an electric stimulation module, a temperature and humidity detection module, a human body state detection module and a wireless transmission module; the stimulating electrodes comprise sacral nerve stimulating electrodes, spinal nerve stimulating electrodes and sphincter stimulating electrodes. The invention can realize three stimulation modes simultaneously or separately, and the external telemetering equipment can transmit corresponding working modes, working states and electrode stimulation parameters to the internal pulse generator through the wireless module, thereby meeting the change requirement of stimulation frequency and changing the frequency to improve the treatment effect.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and relates to a sacral nerve stimulation device.
Background
The sacral nerve electrical stimulator is also called a bladder pacemaker, and is a novel minimally invasive and reversible therapy for treating bladder micturition dysfunction. Sacral nerve stimulation, also known as sacral neuromodulation, is a medical electrical stimulation therapy. In the aspect of micturition dysfunction, the main treatment of conservative treatment (oral medicine and behavioral therapy) fails or cannot tolerate the symptoms of frequent micturition, urgent micturition, urge incontinence and non-obstructive urinary retention of patients with conservative treatment. A programmable stimulator, the sacral nerve stimulator, is typically implanted subcutaneously and connected to the sacral nerve by a lead wire and delivers electrical stimulation. As in these symptoms the nerves and brain can no longer communicate effectively, this leads to dysfunction of the bowel/bladder. Treatment at this time often mimics signaling through the central nervous system. One major neural pathway is from the brain through the back along the spinal cord, commonly referred to as the sacral region. This area controls the daily functions of the pelvic floor, urethral sphincter, bladder and bowel. By stimulating the sacral nerve (located in the posterior lumbar region), the stimulator will generate electrical signals that control pelvic floor contractions. Over time, these contractions will reestablish the strength of the organs and muscles. This effectively relieves all symptoms of urinary/fecal dysfunction and in many cases eliminates them altogether.
The stimulation frequency of the sacral nerve stimulation needs to be varied during the treatment, on the one hand, different frequencies are required for treating different conditions, and on the other hand, a single frequency of long-term stimulation also easily causes tolerance to the patient and the frequency is strained to improve the treatment effect when treating the same condition.
While the sacral nerve stimulator is used to treat diseases including, but not limited to, urinary excretion dysfunction, constipation, stress incontinence, urge incontinence, urinary retention disorders, pelvic pain, prostatitis, prostatodynia, and the like.
The existing devices are therefore unable to meet the above requirements.
Disclosure of Invention
In order to solve the problems, the invention provides a sacral nerve stimulation device which can realize three stimulation modes simultaneously or separately, and an external telemetering device can transmit corresponding working modes, working states and electrode stimulation parameters to an internal pulse generator through a wireless module, so that the change requirement of stimulation frequency can be met, and the frequency can be changed to improve the treatment effect.
The technical scheme of the invention is as follows:
a sacral nerve stimulation device comprises a stimulation electrode, a pulse generator and an intelligent terminal, wherein the stimulation electrode is used for stimulating a load object, the pulse generator is in communication connection with the intelligent terminal, the intelligent terminal comprises a processor module, a communication module and a display module, the stimulation electrode is electrically connected with the pulse generator, a sacral nerve stimulation module, a spinal nerve stimulation module and a sphincter stimulation module are arranged in the pulse transmitter, and the spinal nerve stimulation module comprises an electric stimulation module, a temperature and humidity detection module, a human body state detection module and a wireless transmission module; the stimulation electrodes include a sacral nerve stimulation electrode connected to the sacral nerve stimulation module, a spinal nerve stimulation electrode connected to the spinal nerve stimulation module, and a sphincter stimulation electrode connected to the sphincter stimulation module.
The temperature and humidity detection module has the function of detecting the tightness of the equipment and ensuring the reliability of the equipment; the human body state detection module is used for detecting the action states of the patient, such as running, sleeping, walking and the like, and outputting different stimulation frequencies to the patient according to different states.
Preferably, the sacral nerve stimulation electrode is provided with one, the spinal nerve stimulation electrode is provided with two, the sphincter stimulation electrode is provided with one, and the processor module comprises a first processor for controlling the sacral nerve stimulation electrode, a second processor for controlling the spinal nerve stimulation electrode, and a third processor for controlling the sphincter stimulation electrode.
Preferably, the electrical stimulation module comprises a complete machine power supply module, an electrical stimulation voltage control module and an electrical stimulation output module, the complete machine power supply module comprises a charging coil, the charging coil is electrically connected to the storage battery sequentially through the AD/DC module, the overvoltage protection circuit, the overcurrent protection circuit and the battery charging management module, and the storage battery is electrically connected to the main control MCU through the DC/DC module and the buck-boost circuit; the boost-buck circuit is also connected to a main control MCU through a circuit and a voltage reference module, the main control MCU is electrically connected to the boost circuit through a DP digital potentiometer, and the boost circuit is also electrically connected to a battery through a DC/DC module; the voltage reference module is connected to the data selector through the D/A digital-to-analog conversion module, the current source module and the reversing circuit in sequence; the current source module, the reversing circuit and the data selector are electrically connected to the booster circuit.
Preferably, the electrical stimulation voltage control module and the electrical stimulation output module comprise charging coils, the charging coils are electrically connected to the storage battery sequentially through the AD/DC module, the overvoltage protection circuit, the overcurrent protection circuit and the battery charging management module, and the storage battery is electrically connected to the main control MCU through the DC/DC module and the buck-boost circuit; the boost-buck circuit is also connected to a main control MCU through a circuit and a voltage reference module, the main control MCU is electrically connected to the boost circuit through a DP digital potentiometer, and the boost circuit is also electrically connected to a battery through a DC/DC module; the voltage reference module is electrically connected to a load object through the D/A digital-to-analog conversion module, the current source module, the reversing circuit, the data selector and the capacitor array in sequence; the D/A digital-to-analog conversion module, the reversing circuit and the data selector are all electrically connected to the master control MCU, and the current source module, the reversing circuit and the data selector are electrically connected to the booster circuit.
Preferably, the stimulation electrode tip is provided with a stimulation point in contact with the nerve, the stimulation point being held in contact with the nerve by a fixation or clamping device.
Preferably, the stimulation electrode is made of one or more of silver, platinum alloy, nickel and nickel alloy, the outer sleeve of the stimulation electrode is a medical polymer insulating tube, and the medical polymer material adopted in the medical polymer insulating tube can be one or more of nylon, polyurethane and polytetrafluoroethylene.
Preferably, the intelligent terminal is a palm computer, a PDA or an intelligent mobile phone, and the intelligent terminal further comprises keys, wherein the keys comprise a switch key, a navigation key, a display screen, an excitation voltage increasing key, an excitation voltage reducing key, an excitation opening key, an excitation closing key and a synchronization key.
Preferably, the wireless charger is used for charging the pulse generator.
Preferably, the wireless communication module is connected with the intelligent terminal in a Zigbee, Bluetooth or infrared communication mode.
The invention has the beneficial effects that: the external telemetering equipment can transmit corresponding working modes, working states and electrode stimulation parameters to the internal pulse generator through the wireless module, can meet the change requirement of stimulation frequency, and can change the frequency to improve the treatment effect; the invention also provides an electrical stimulation device, wherein the current output by the electrical stimulation current source for treating pain is sent to the reversing circuit, and the reversing circuit is controlled by the master controller to perform current reversing on the current input to the reversing circuit so as to ensure that the output current has positive and negative directions and can accurately control the output current.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view of the arrangement of an embodiment of the present invention in an intracorporeal structure.
Fig. 3 is an overall architecture diagram of an electrostimulation module.
Fig. 4 is an overall architecture diagram of the complete machine power supply module.
Fig. 5 is an overall architecture diagram of the electrical stimulation voltage control module and the electrical stimulation output module.
Fig. 6 is a schematic structural diagram of the intelligent terminal.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
A sacral nerve stimulation device is shown in figure 1 and comprises a pulse generator 1 implanted in a body, an intelligent terminal 2 arranged outside the body and used for remote measurement, and a stimulation electrode implanted in the body, wherein the pulse generator 1 is in communication connection with the intelligent terminal 2, and the stimulation electrode is electrically connected with the pulse generator 1. The intelligent terminal 2 comprises a processor module, a communication module and a display module, a sacral nerve stimulation module, a spinal nerve stimulation module and a sphincter muscle stimulation module are arranged in the pulse transmitter 1, and the spinal nerve stimulation module comprises an electric stimulation module, a temperature and humidity detection module, a human body state detection module and a wireless transmission module; the stimulation electrodes include a sacral nerve stimulation electrode connected to the sacral nerve stimulation module, a spinal nerve stimulation electrode connected to the spinal nerve stimulation module, and a sphincter stimulation electrode connected to the sphincter stimulation module.
As an embodiment of the present invention, the implanted stimulation electrodes have three or four electrode leads, one for the sacral nerve stimulation electrode 4, one or two for the medical pain stimulation electrode 5, one for the sphincter stimulation electrode 6, and an external telemetry device. The user can send related control instructions to the pulse generator 1 through the intelligent terminal 2, for example, the user can respectively send sacral nerve stimulation signals to treat diseases such as urinary incontinence and the like, and simultaneously send treatment pain stimulation signals to treat related pain signals such as pelvic pain and the like and signals for stimulating sphincters.
As an embodiment of the invention, the processor module includes a first processor for controlling the sacral nerve stimulation electrodes, a second processor for controlling the spinal nerve stimulation electrodes, and a third processor for controlling the sphincter stimulation electrodes.
The stimulation device can be divided into three stimulation systems, namely a sacral nerve stimulation system, a spinal nerve stimulation system and a sphincter stimulation system, wherein the sacral nerve stimulation module comprises an intelligent terminal 2, a sacral nerve stimulation module and a sacral nerve stimulation electrode which are arranged in a pulse transmitter 1, the spinal nerve stimulation system comprises an intelligent terminal 2, a spinal nerve stimulation module and a spinal nerve stimulation electrode which are arranged in the pulse transmitter 1, and the sphincter stimulation system comprises an intelligent terminal 2, a sphincter stimulation module and a sphincter stimulation electrode which are arranged in the pulse transmitter 1. The intelligent terminals in the three systems are the same device.
As an embodiment of the present invention, as shown in fig. 2, the sacral nerve stimulation system includes a sacral nerve stimulation electrode 4 electrically connected to the implanted pulse generator module through a feed-through, the end of the sacral nerve stimulation electrode 4 is provided with a stimulation point contacting the sacral nerve 3-2, the electrode end can be well contacted with the sacral nerve 3-2 through a fixing or holding device, and the stimulation electrode design must satisfy the condition of long-term implantation, i.e. no toxicity, minimal foreign body reaction, good biocompatibility, etc.
As an embodiment of the present invention, as shown in fig. 2, the spinal nerve stimulation system includes a spinal nerve stimulation electrode 5 as a stimulation electrode for treating pain, the spinal nerve stimulation electrode 5 is electrically connected to an implanted pulse generator module in a body through a feed-through, a stimulation point contacting with the spinal nerve 3-3 is provided at the end of the spinal nerve stimulation electrode 5, the electrode end can be well contacted with the spinal nerve 3-3 through a fixing or clamping device, and the stimulation electrode must be designed to satisfy the condition of long-term implantation, i.e., no toxicity, minimal foreign body reaction, good biocompatibility, and the like.
As an embodiment of the present invention, as shown in fig. 2, the sphincter stimulation module includes a sphincter stimulation electrode 6, i.e., a sphincter stimulation electrode 6, the sphincter stimulation electrode 6 is electrically connected to the body-implanted pulse generator module through a feed-through, the end of the sphincter stimulation electrode 6 is provided with a stimulation point such as S3, S4 with the nerve root near the sphincter, the electrode end can be well contacted with the sphincter nerve 3-3 by a fixing or holding device, and the sphincter stimulation electrode design must satisfy the condition of long-term implantation, i.e., no toxicity, minimal foreign body reaction, good biocompatibility, etc.
In one embodiment of the present invention, the three stimulation electrodes are made of one or more of silver, platinum alloy, nickel and nickel alloy, the outer sleeve of the stimulation electrode is a medical polymer insulating tube, and the medical polymer material used in the medical polymer insulating tube is one or more of nylon, polyurethane and polytetrafluoroethylene.
As an embodiment of the present invention, as shown in fig. 3, the electrical stimulation module includes a complete machine power supply module, an electrical stimulation voltage control module, and an electrical stimulation output module, the electrical stimulation module includes a charging coil, the charging coil is electrically connected to the storage battery through the AD/DC module, the overvoltage protection circuit, the overcurrent protection circuit, and the battery charging management module in sequence, and the storage battery is electrically connected to the main control MCU through the DC/DC module and the buck-boost circuit; the boost circuit is also connected to a main control MCU through a circuit and a voltage reference module, the main control MCU is electrically connected to the boost circuit through a DP digital potentiometer, and the boost circuit is also electrically connected to the battery through a DC/DC module; the voltage reference module is electrically connected to the load object through the D/A digital-to-analog conversion module, the current source module, the reversing circuit, the data selector and the capacitor array in sequence; the D/A digital-to-analog conversion module, the reversing circuit and the data selector are electrically connected to the master control MCU, and the current source module, the reversing circuit and the data selector are electrically connected to the booster circuit; the master control MCU is also electrically connected to the charging coil through the reverse modulation module.
The reverse modulation module passes through voltage control resonance capacitance's change, and then adjusts charging coil resonant frequency's change and transmit data, and when charging coil's resonant frequency changed, the reverse impedance on the transmitting coil of wireless charger changed, and then the radio frequency power amplifier output voltage waveform of external machine changed, and this change has embodied implant resonant frequency's change, and through the envelope of this voltage waveform of demodulation, the voltage waveform that can obtain implant control resonance capacitance change, the detailed information of the data that need transmit promptly.
As an embodiment of the present invention, as shown in fig. 4, the complete machine power supply module includes a charging coil, the charging coil is electrically connected to the storage battery through the AD/DC module, the overvoltage protection circuit, the overcurrent protection circuit, and the battery charging management module in sequence, and the storage battery is electrically connected to the main control MCU through the DC/DC module and the buck-boost circuit; the boost circuit is also connected to a main control MCU through a circuit and a voltage reference module, the main control MCU is electrically connected to the boost circuit through a DP digital potentiometer, and the boost circuit is also electrically connected to the battery through a DC/DC module; the voltage reference module is connected to the data selector through the D/A digital-to-analog conversion module, the current source module and the reversing circuit in sequence; the current source module, the reversing circuit and the data selector are electrically connected to the booster circuit.
As an embodiment of the present invention, as shown in fig. 5, the electrical stimulation voltage control module and the electrical stimulation output module include charging coils, the charging coils are electrically connected to the storage battery through the AD/DC module, the overvoltage protection circuit, the overcurrent protection circuit, and the battery charging management module in sequence, and the storage battery is electrically connected to the main control MCU through the DC/DC module and the buck-boost circuit; the boost circuit is also connected to a main control MCU through a circuit and a voltage reference module, the main control MCU is electrically connected to the boost circuit through a DP digital potentiometer, and the boost circuit is also electrically connected to the battery through a DC/DC module; the voltage reference module is electrically connected to the load object through the D/A digital-to-analog conversion module, the current source module, the reversing circuit, the data selector and the capacitor array in sequence; the D/A digital-to-analog conversion module, the reversing circuit and the data selector are all electrically connected to the master control MCU, and the current source module, the reversing circuit and the data selector are electrically connected to the booster circuit.
The wireless charger for charging the pulse generator is further provided as an embodiment of the invention. The volume information may be transmitted to a display module of the smart device outside the body via wireless communication techniques. When the electric quantity of the pulse generator in the body is too low, the pulse generator is charged through the wireless charger in the body.
The working process of the electrical stimulation module is as follows:
the wireless charging method comprises the steps that firstly, an internal coil is wirelessly charged through a wireless charger, current received by the internal charging coil passes through an AD/DC module to form direct current, the formed direct current passes through overvoltage and overcurrent protection to realize monitoring and detection of voltage and current in a circuit, then the current is conducted to an electromagnetic battery charging management module, and the current is provided for a lithium ion battery through the battery charging management module.
When the whole device starts to work, the output power of the lithium ion battery passes through the DC/DC switching power supply, so that the functions of short-circuit protection, overvoltage protection, undervoltage protection, overcurrent protection, other protection and the like of the output power of the lithium ion battery are realized, and finally, the power passing through the DC/DC is supplied to the main control MCU and the voltage reference module by outputting corresponding voltage through the Buck-Boost voltage-boosting module, so that the power supply of the main control MCU and high-precision reference voltage are realized.
And the current source module outputs a corresponding electrical stimulation current waveform according to the voltage waveform output by the D/A digital-to-analog converter. The current is directly output to a subsequent commutation circuit and is output to a load through the MUX.
Meanwhile, the voltage reference module feeds back a required accurate voltage value to the main control MCU, the main control MCU sends out a control signal, the control signal passes through the DP digital point location meter potentiometer module, and the DP digital potentiometer module is used for controlling and adjusting the voltage value output by the Boost circuit module. And then, the corresponding voltage boosted by the Boost is used for supplying power to the current source module, the reversing circuit and the MUX respectively.
As described above, the corresponding voltage output by the DC/DC is transmitted to the voltage reference module through the Buck-Boost voltage step-up/step-down module, and the voltage reference module feeds back the required accurate voltage value to the main control MCU, and the main control MCU sends out a control signal, and the control signal passes through the DP digital point potentiometer module, and then the DP digital potentiometer module DP is only a variable resistor, and at first the main control MCU controls the DP digital potentiometer module to output different resistance values to the feedback end of the Boost circuit, and then the Boost circuit outputs different DC voltage values.
And controlling and regulating the voltage value output by the Boost circuit module. And then, the corresponding voltage boosted by the Boost is used for supplying power to the current source module, the reversing circuit and the MUX respectively.
And then the main control MCU respectively controls the digital-to-analog D/A digital-to-analog conversion modules, continuous signal output is obtained through D/A digital-to-analog conversion, the maximum voltage output by the D/A digital-to-analog conversion is determined by reference voltage, meanwhile, the main control MCU is utilized to control the D/A digital-to-analog conversion modules, and finally, signals sent by the D/A are output to a current source, so that the function of controlling and outputting currents with different sizes and shapes is realized.
The main control MCU controls the reversing circuit to perform current reversing on the current input to the reversing circuit, so that the current source module which forms a positive current direction and a reverse current direction can only output unidirectional current at present, bidirectional current output can be realized by utilizing the reversing circuit, the advantages that the output positive pulse electric quantity and the output negative pulse electric quantity are easy to realize equal, and the polarization phenomenon after the electrode is implanted is prevented.
And output to MUX, and output to nerve fiber through the capacitor array to reach the purpose of electrically stimulating nerve. The main control MCU controls the MUX multiplexer to control the transmission output position of current, the current is output to the capacitor array through the MUX multiplexer and then is output to a load (namely nerve fibers, muscle tissues and the like), and the purpose of using the capacitor array is to avoid the phenomenon that polarization easily occurs when direct current is directly transmitted to the load and direct current is directly transmitted to electrodes.
As an embodiment of the present invention, as shown in fig. 6, the intelligent terminal is a palm computer, a PDA or a smart phone, and the intelligent terminal further includes keys, where the keys include a switch key 21, a navigation key 22, a display screen 23, a stimulation voltage increase key 24, a stimulation voltage decrease key 25, a stimulation on key 26, a stimulation off key 27, and a synchronization key 28.
The intelligent terminal 2 can respectively perform remote measurement (programming) on the sacral nerve stimulation system and the spinal nerve stimulation system through the communication module, so as to transmit corresponding control instructions to the sacral nerve stimulation system and the spinal nerve stimulation system, manually start or stop the sacral nerve stimulation system and the spinal nerve stimulation system through external remote measurement equipment, and can also display relevant parameters such as the working mode, the working state, the electrode stimulation parameters and the like of the sacral nerve stimulation system and the spinal nerve stimulation system on the display module.
In one embodiment of the invention, the stimulation electrode is connected to a pulse generator via a feed-through.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the present invention in its spirit and scope. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A sacral nerve stimulation device is characterized by comprising a stimulation electrode, a pulse generator and an intelligent terminal, wherein the stimulation electrode is used for stimulating a load object, the pulse generator is in communication connection with the intelligent terminal, the intelligent terminal comprises a processor module, a communication module and a display module, the stimulation electrode is electrically connected with the pulse generator, a sacral nerve stimulation module, a spinal nerve stimulation module and a sphincter stimulation module are arranged in the pulse transmitter, and the spinal nerve stimulation module comprises an electric stimulation module, a temperature and humidity detection module, a human body state detection module and a wireless transmission module; the stimulation electrodes include a sacral nerve stimulation electrode connected to the sacral nerve stimulation module, a spinal nerve stimulation electrode connected to the spinal nerve stimulation module, and a sphincter stimulation electrode connected to the sphincter stimulation module.
2. The sacral nerve stimulation device as recited in claim 1, wherein there is one sacral nerve stimulation electrode, there are two spinal nerve stimulation electrodes, there is one sphincter stimulation electrode, and the processor module comprises a first processor for controlling the sacral nerve stimulation electrode, a second processor for controlling the spinal nerve stimulation electrode, and a third processor for controlling the sphincter stimulation electrode.
3. The sacral nerve stimulation device according to claim 1, wherein the electrical stimulation module comprises a complete machine power supply module, an electrical stimulation voltage control module and an electrical stimulation output module, the complete machine power supply module comprises a charging coil, the charging coil is electrically connected to a storage battery through an AD/DC module, an overvoltage protection circuit, an overcurrent protection circuit and a battery charging management module in sequence, and the storage battery is electrically connected to the main control MCU through the DC/DC module and a buck-boost circuit; the boost-buck circuit is also connected to a main control MCU through a circuit and a voltage reference module, the main control MCU is electrically connected to the boost circuit through a DP digital potentiometer, and the boost circuit is also electrically connected to a battery through a DC/DC module; the voltage reference module is connected to the data selector through the D/A digital-to-analog conversion module, the current source module and the reversing circuit in sequence; the current source module, the reversing circuit and the data selector are electrically connected to the booster circuit.
4. The sacral nerve stimulation device according to claim 3, wherein the electrical stimulation voltage control module and the electrical stimulation output module comprise charging coils, the charging coils are electrically connected to a storage battery through the AD/DC module, the overvoltage protection circuit, the overcurrent protection circuit and the battery charging management module in sequence, and the storage battery is electrically connected to the main control MCU through the DC/DC module and the buck-boost circuit; the boost-buck circuit is also connected to a main control MCU through a circuit and a voltage reference module, the main control MCU is electrically connected to the boost circuit through a DP digital potentiometer, and the boost circuit is also electrically connected to a battery through a DC/DC module; the voltage reference module is electrically connected to a load object through the D/A digital-to-analog conversion module, the current source module, the reversing circuit, the data selector and the capacitor array in sequence; the D/A digital-to-analog conversion module, the reversing circuit and the data selector are all electrically connected to the master control MCU, and the current source module, the reversing circuit and the data selector are electrically connected to the booster circuit.
5. The sacral nerve stimulation device as recited in claim 1, wherein the stimulation electrode is connected to a pulse generator through a feedthrough.
6. The sacral nerve stimulation device as recited in claim 1, wherein the stimulation electrode tips are provided with stimulation points that contact nerves, the stimulation points being held in contact with the nerves by a fixation or clamping device.
7. The sacral nerve stimulation device as claimed in claim 1, wherein said stimulation electrode is made of one or more of silver, platinum alloy, nickel alloy, and the outer sheath of said stimulation electrode is made of medical polymer insulating tube, and the medical polymer material used in said medical polymer insulating tube is selected from one or more of nylon, polyurethane, and polytetrafluoroethylene.
8. The sacral nerve stimulation device according to claim 1, wherein said intelligent terminal is a palm top computer, a PDA or a smart phone, said intelligent terminal further comprising keys, said keys comprising a switch key, a navigation key, a display screen, a stimulation voltage increase key, a stimulation voltage decrease key, a stimulation on key, a stimulation off key, a synchronization key.
9. The sacral nerve stimulation device as recited in claim 1, further comprising a wireless charger that charges the pulse generator.
10. The sacral nerve stimulation device as recited in claim 1, wherein the wireless communication module is connected to a smart terminal via Zigbee, bluetooth, or infrared communication.
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| CN202011271555.1A CN112402793A (en) | 2020-11-13 | 2020-11-13 | Sacral nerve stimulation device |
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| CN115245414A (en) * | 2021-04-28 | 2022-10-28 | 合肥工业大学 | A kind of intelligent ankle-foot orthosis and production method |
| CN113907761B (en) * | 2021-10-09 | 2024-05-07 | 中国人民解放军军事科学院军事医学研究院 | Bipolar implantable myoelectric electrode assembly for stimulation and recording and application method thereof |
| CN114042252A (en) * | 2021-11-09 | 2022-02-15 | 北京惠仁阳光医疗器械有限公司 | Portable nerve dry magnetic stimulation rehabilitation treatment equipment |
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| CN112402793A (en) | 2021-02-26 |
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