CN205379548U - Sacrum neural stimulator - Google Patents
Sacrum neural stimulator Download PDFInfo
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- CN205379548U CN205379548U CN201620055692.4U CN201620055692U CN205379548U CN 205379548 U CN205379548 U CN 205379548U CN 201620055692 U CN201620055692 U CN 201620055692U CN 205379548 U CN205379548 U CN 205379548U
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Abstract
The utility model provides a sacrum neural stimulator, sacrum neural stimulator includes external controller and implants internal implantation body stimulator, implanting physically, the stimulator includes transceiver circuits, singlechip, upset pulse generation module and electrode to restraint, the electrode is restrainted including two piece at least electrodes, and the end of every electrode all has and is used for amazing with the sacral nerve contact, and just wherein two electrodes are working electrode. External controller with implant body stimulator and carry out both -way communication through wireless mode. The utility model discloses not only can remove amazing sacral nerve according to user's settlement parameter to treatment polyuria urgent urination realizes controlled urinating, and can gather and measure the sacral nerve signal of telecommunication and organize the resistance value to know the inside actual physiology situation of patient's health.
Description
Technical field
This utility model relates to nerve stimulator, particularly relates to a kind of sacral nerve stimulator.
Background technology
The bladder such as urinary incontinence, frequent micturition system disease generally causes because of nervous system spinal cord injury, medical research with practice it has been confirmed that neural to apply electricity irritation be a kind of effective Therapeutic Method to relevant.Many studies have shown that, stimulate sacral nerves S2 S3 before S4 root can affect the action of detrusor of bladder and EUS, thus utilizing suitable stimulus signal can suppress detrusor of bladder hyperreflexia, reach to alleviate the purpose of urinary incontinence；Specific stimulating pulsatile series can also be adopted, excite detrusor of bladder and EUS coordination to realize controlled urinating.
Current existing sacral nerve stimulation product or technology, be all the control of forward, namely sends stimulus signal to sacral nerves.The effect stimulated directly is not measured, and only by health external presentation, such as the change of micturition frequency, indirectly makes measurement and evaluates.If able to be acquired sacral nerves signal and tissue signature measuring, and result being delivered to external, this is by the directive function selecting adjustment stimulus parameter or stimulation strategy to have reality.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is in that to provide a kind of sacral nerve stimulator, for solving the problem that in prior art, sacral nerve stimulator cannot obtain the actual physiology situation information of patient.
For achieving the above object and other relevant purposes, this utility model provides a kind of sacral nerve stimulator, described sacral nerve stimulator includes external controller and the implant stimulator implanted, described implant stimulator includes transmission circuit, single-chip microcomputer, boost pulse generation module and electrode bundle, described electrode bundle includes at least two electrodes, the end of every electrode all has the stimulation point for contacting with sacral nerves, and wherein two electrodes are working electrode, described external controller and described implant stimulator wirelessly carry out two-way communication.
Preferably, described external controller and described implant stimulator are by signal near-field communication that carrier frequency is 125kHz.
Preferably, described external controller includes display screen, input block and control unit.
Preferably, the boost pulse of described working electrode output is positive negative shape in succession.
Preferably, described boost pulse generation module has been additionally provided with measures the first circuit module of neural voltage between described electrode, first circuit module is by the Single-chip Controlling in described implant stimulator, and described external controller drives described implant stimulator complete the measurement of neural voltage between described electrode and receive measured neural voltage value.
Preferably, described first circuit module includes the first selector being connected with described electrode bundle, and gathers collection amplifier and the analog-digital converter of described inter-electrode voltage, described first selector, gathers amplifier, analog-digital converter by described Single-chip Controlling.
Preferably, described boost pulse generation module has been additionally provided with the second circuit module measuring tissue impedance between described electrode, second circuit module is by the Single-chip Controlling in described implant stimulator, and described external controller drives described implant stimulator complete the measurement of tissue impedance between described electrode and receive measured tissue impedance's numerical value.
Preferably, described second circuit module includes the second selector being connected with described electrode bundle and the adjustable current source being connected with second selector and described first circuit module, and described second selector, adjustable current source are by described Single-chip Controlling.
As mentioned above, sacral nerve stimulator of the present utility model, have the advantages that it adopts external controller and the implant stimulator implanted carries out two-way communication, it is achieved parameter arranges the input with external control order, and checks the state of implant stimulator；It not only can swash sacral nerves according to the setup parameter deburring of user, to treat urine urgency-frequency, it is achieved controlled urinate；And the measurement sacral nerves signal of telecommunication and tissue impedance values can be gathered, in order to understand the actual physiological situation within patient body.
Accompanying drawing explanation
Fig. 1 is shown as sacral nerve stimulator schematic diagram of the present utility model.
Fig. 2 is shown as the boost pulse schematic diagram of electrode of the present utility model output.
Fig. 3 is shown as the principle schematic of the first circuit module of the present utility model and second circuit module.
Element numbers explanation
1 external controller
11 display screens
12 single-chip microcomputers
13 keyboards
14 transmission circuits
15 batteries
2 implant stimulators
21 transmission circuits
22 single-chip microcomputers
23 batteries
24 boost pulse generation modules
25 electrode bundles
31 adjustable current sources
32 gather amplifier
33 analog-digital converters
34 second selectors
35 first selectors
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model being described below, those skilled in the art the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1 to Fig. 3.Notice, the structure of this specification institute accompanying drawings depicted, ratio, size etc., all only in order to coordinate the disclosed content of description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still drop in the scope that the disclosed technology contents of this utility model can be contained.Simultaneously, in this specification cited as " on ", D score, "left", "right", " centre " and " one " etc. term, it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of this utility model, the change of its relativeness or adjustment, changing under technology contents without essence, when being also considered as the enforceable category of this utility model.
As shown in Figure 1, this utility model provides a kind of sacral nerve stimulator, described sacral nerve stimulator includes external controller 1 and the implant stimulator 2 implanted, described implant stimulator 2 includes transmission circuit 21, boost pulse generation module 24 and electrode bundle 25, electrode bundle 25 includes at least two electrodes, the end of every electrode all has the stimulation point for contacting with sacral nerves, and wherein two electrodes are working electrode.External controller 1 and described implant stimulator 2 wirelessly carry out two-way communication.This utility model adopts external controller 1 and implant stimulator 2 two-way communication implanted, on the one hand, user can realize the control to implant stimulator parameter and state by external controller, disinthibite the overreaction of detrusor of bladder thus producing stimulation pulse signal and alleviate urine urgency-frequency, or make detrusor of bladder and EUS coordination and controlled urinate；On the other hand, implant stimulator can gather the electroneurographic signal and tissue impedance measured on sacral nerves, and namely user's controller in vitro can obtain these measurement results.Nerve stimulation signal exports between two working electrodes, is delivered to sacral nerves via the stimulation point of electrode end.This electrode end is placed into root before sacral nerves S2/S3/S4 by surgical operation, and need to manage fixing good to keep in touch.
Above-mentioned implant stimulator 2 also includes battery 23 and controller (i.e. single-chip microcomputer 22 in Fig. 1).Implant stimulator 2 is implanted to patient's buttocks by surgical, the fixing contact sacral nerves of electrode bundle 25 of extraction.Electrode bundle 25 in the present embodiment includes four electrodes, and every electrode is drawn stimulation point from end respectively and contacted with sacral nerves.According to the situation that reality is implanted, two electrodes that chosen position is suitable from which export boost pulse as working electrode.Choosing of working electrode can be configured by external controller 1.
Above-mentioned external controller 1 can be hand-held, for patient oneself or doctor.External controller is provided with input block (in Fig. 1 keyboard 13), control unit (i.e. single-chip microcomputer 12 in Fig. 1), battery 15 and display screen 11, and transmission circuit 14, this transmission circuit 14 and transmission circuit 21 intercommunication on above-mentioned implant stimulator.User passes through keyboard 13, selects the information such as input parameter, shows selectable value and current selective value simultaneously on display screen 11.By the operation on controller 1 in vitro, user can send order to implant stimulator 2 so that it is performs corresponding function.
Radio communication between external controller and implant stimulator is carrier frequency is the near-field communication of 125kHz.Adopt 125kHz carrier communication, it is possible to use existing RFID product and technology, thus reducing cost.
Usual electrode bundle, containing four electrodes, is being implanted to after in the patient, chooses two best electrodes of effect as working electrode for sending boost pulse by testing.This selection is determined according to the practical situation of oneself by user.
As shown in Figure 2, it is continuous print positive negative current impulse in succession to the boost pulse waveform of above-mentioned working electrode output, and positive is equal with the amplitude of negative, width is equal.Compared with single-phase stimulus signal, adopt positive negative stimulus signal in succession, it is possible to avoid electric charge persistent accumulation on certain neural point, reach the purpose of charge balance.
The frequency of the amplitude of stimulus signal, width and stimulation can by user according to oneself need change.Amplitude range is 18uA～1800uA, and width range is 66us～400us, and stimulus frequency ranges for 5Hz～200Hz.
Above-mentioned continuous print boost pulse, the waveform of each pulse is the same, claims such continuous impulse signal for conditioning stimulus signal.Conditioning stimulus signal is used for suppressing the too drastic overfrequency of detrusor of bladder to react, repairing and treating urine urgency-frequency.For triggering the stimulation pulse signal urinated, then it it is the sequence of a series of pulses of different amplitude, different in width.Claim such a pulse train for stimulus signal of urinating.Shrink through the stimulation of stimulus signal of thus urinating, detrusor of bladder and EUS with regular hour difference and relax, reaching the purpose making the urine storage in bladder discharge.
As shown in Figure 3, above-mentioned boost pulse generation module 24 has been additionally provided with measures the first circuit module of neural voltage between electrode, first circuit module is controlled by the single-chip microcomputer 22 in implant stimulator, and described external controller 1 drives implant stimulator 2 complete the measurement of neural voltage between electrode and receive measured neural voltage value.
Above-mentioned first circuit module includes the first selector 35 being connected with electrode bundle 25, and the collection amplifier 32 of voltage and analog-digital converter 33 between acquisition electrode, as shown in Figure 3.Described first selector 35, collection amplifier 32, analog-digital converter 33 control by described single-chip microcomputer 22.
Above-mentioned boost pulse generation module 34 has been additionally provided with measures the second circuit module of tissue impedance between electrode, as shown in Figure 3, second circuit module is controlled by described single-chip microcomputer 22, and described external controller 1 drives described implant stimulator 2 complete the measurement of tissue impedance between electrode and receive measured tissue impedance's numerical value.Second circuit module includes the second selector 34 being connected with described electrode bundle 25 and the adjustable current source 31 being connected with second selector 34 and described above-mentioned first circuit module.Described second selector 34, adjustable current source 31 control by described single-chip microcomputer 22.
When measuring interelectrode neural voltage, as shown in Figure 3, single-chip microcomputer 22 sends control signals to first selector 35, connect two electrodes specified as measuring electrode, then these the two collected amplifiers 32 of voltage measured between electrode gather and amplify, signal after amplification is converted to digital signal by analog-digital converter 33, sends single-chip microcomputer 22 to.In some cases, it is possible to send specific stimulus signal before measuring to stimulate nerve, in order to measure nerves reaction signal subsequently.
When measuring interelectrode tissue impedance, as shown in Figure 3, single-chip microcomputer 22 sends control signals to second selector 34 and adjustable current source 31, two electrodes specified to send the electric current determining amplitude to flow to.Then single-chip microcomputer 22 sends control signal again to first selector 35, collection amplifier 32, analog-digital converter 33, the voltage signal on acquisition electrode.By this magnitude of voltage divided by aforementioned currents value, just obtain tissue impedance values.
As it is shown in figure 1, the communication between external controller 1 and implant stimulator 2, including following message:
1. external controller 1 is sent to the conditioning stimulus signal parameter setting command of implant stimulator 2.In this order, it is intended that two working electrodes of the conditioning pulse amplitude of stimulus signal, width, stimulus frequency and selection.After implant stimulator 2 receives these parameters, namely using this group parameter as current stimulus parameter.
2. external controller 1 be sent to implant stimulator 2 conditioning stimulate start or stop order.Implant stimulator 2 receives this order, namely starts to stimulate according to current stimulus parameter, or stops ongoing stimulation.
3. external controller 1 is sent to the stimulation order of urinating of implant stimulator 2.Implant stimulator 2 receives this order, namely sends stimulus signal sequence of urinating.
4. external controller 1 is sent to tissue impedance's measuring command between the electrode of implant stimulator 2.Implant stimulator 2 receives this order, namely measures the tissue impedance between two electrodes specified, and result returns to external controller 1.
5. external controller 1 is sent between the electrode of implant stimulator 2 neural voltage measuring command.Implant stimulator 2 receives this order, namely measures the neural voltage between two electrodes specified, and result returns to external controller 1.
The neural voltage measurement in tissue impedance's measurement and 5 in above-mentioned 4 need to realize measuring function by the first circuit module within implant stimulator and second circuit module.
In sum, sacral nerve stimulator of the present utility model, not only can swash sacral nerves according to the setup parameter deburring of user, to treat urine urgency-frequency, it is achieved controlled urinate；And electroneurographic signal and tissue impedance values can be measured, in order to understand the actual physiological situation within patient body.So, this utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and effect thereof, not for restriction this utility model.Above-described embodiment all under spirit of the present utility model and category, can be modified or change by any those skilled in the art.Therefore, art has all equivalence modification or changes that usually intellectual completes under the spirit disclosed without departing from this utility model with technological thought such as, must be contained by claim of the present utility model.
Claims (8)
1. a sacral nerve stimulator, it is characterized in that, described sacral nerve stimulator includes external controller (1) and the implant stimulator (2) implanted, described implant stimulator (2) includes transmission circuit (21), single-chip microcomputer (22), boost pulse generation module (24) and electrode bundle (25), described electrode bundle (25) includes at least two electrodes, the end of every electrode all has the stimulation point for contacting with sacral nerves, and wherein two electrodes are working electrode, described external controller (1) and described implant stimulator (2) wirelessly carry out two-way communication.
2. sacral nerve stimulator according to claim 1, it is characterised in that: described external controller (1) and described implant stimulator (2) are by signal near field communication that carrier frequency is 125kHz.
3. sacral nerve stimulator according to claim 1, it is characterised in that: described external controller (1) includes display screen (11), input block and control unit.
4. sacral nerve stimulator according to claim 1, it is characterised in that: the boost pulse of described working electrode output is positive negative shape in succession.
5. sacral nerve stimulator according to claim 1, it is characterized in that: described boost pulse generation module (24) has been additionally provided with measures the first circuit module of neural voltage between described electrode, first circuit module is controlled by the single-chip microcomputer (22) in described implant stimulator (2), and described external controller (1) drives described implant stimulator (2) complete the measurement of neural voltage between described electrode and receive measured neural voltage value.
6. sacral nerve stimulator according to claim 5, it is characterized in that: described first circuit module includes the first selector (35) being connected with described electrode bundle (25), and gather collection amplifier (32) and the analog-digital converter (33) of described inter-electrode voltage, described first selector (35), gather amplifier (32), analog-digital converter (33) controls by described single-chip microcomputer (22).
7. sacral nerve stimulator according to claim 5, it is characterized in that: described boost pulse generation module (24) has been additionally provided with the second circuit module measuring tissue impedance between described electrode, second circuit module is controlled by the single-chip microcomputer (22) in described implant stimulator (2), and described external controller (1) drives described implant stimulator (2) complete the measurement of tissue impedance between described working electrode and receive measured tissue impedance's numerical value.
8. sacral nerve stimulator according to claim 7, it is characterized in that: described second circuit module includes the second selector (34) being connected with described electrode bundle (25), and the adjustable current source (31) being connected with second selector (34), and described first circuit module, described second selector (34), adjustable current source (31) control by described single-chip microcomputer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620055692.4U CN205379548U (en) | 2016-01-20 | 2016-01-20 | Sacrum neural stimulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620055692.4U CN205379548U (en) | 2016-01-20 | 2016-01-20 | Sacrum neural stimulator |
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| CN205379548U true CN205379548U (en) | 2016-07-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267558A (en) * | 2016-08-30 | 2017-01-04 | 上海力声特医学科技有限公司 | A kind of impedance detecting method, system and there is the electronic equipment of this system |
| CN107050644A (en) * | 2017-01-13 | 2017-08-18 | 北京品驰医疗设备有限公司 | A kind of sacral nerve stimulation device of frequency of stimulation change |
| CN107261323A (en) * | 2017-07-07 | 2017-10-20 | 北京品驰医疗设备有限公司 | A kind of implanted is without wire sacral nerve stimulator |
| WO2024156099A1 (en) * | 2023-01-28 | 2024-08-02 | 中国科学院深圳先进技术研究院 | Nanowire electrode impedance measurement circuit for dedicated chip for retinal prosthesis, and chip |
-
2016
- 2016-01-20 CN CN201620055692.4U patent/CN205379548U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267558A (en) * | 2016-08-30 | 2017-01-04 | 上海力声特医学科技有限公司 | A kind of impedance detecting method, system and there is the electronic equipment of this system |
| CN107050644A (en) * | 2017-01-13 | 2017-08-18 | 北京品驰医疗设备有限公司 | A kind of sacral nerve stimulation device of frequency of stimulation change |
| CN107261323A (en) * | 2017-07-07 | 2017-10-20 | 北京品驰医疗设备有限公司 | A kind of implanted is without wire sacral nerve stimulator |
| WO2024156099A1 (en) * | 2023-01-28 | 2024-08-02 | 中国科学院深圳先进技术研究院 | Nanowire electrode impedance measurement circuit for dedicated chip for retinal prosthesis, and chip |
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Address after: 201318 Shanghai city Pudong New Area indigo Road No. 668 Patentee after: Lishengte Medical Science & Tech. Co., Ltd. Address before: 200333 Shanghai, Nu River, North Road, Lane 561, building No. 6, building 1, building Patentee before: Lishengte Medical Science & Tech. Co., Ltd. |