CN206167634U - Implanted vagal stimulation system - Google Patents
Implanted vagal stimulation system Download PDFInfo
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- CN206167634U CN206167634U CN201620435699.9U CN201620435699U CN206167634U CN 206167634 U CN206167634 U CN 206167634U CN 201620435699 U CN201620435699 U CN 201620435699U CN 206167634 U CN206167634 U CN 206167634U
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- heart rate
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Abstract
The utility model provides an implanted vagal stimulation system, including implanting the external part of subtotal, wherein implant the part including stimulating electrode, microcontroller, pulsed electricity signal generation unit and wireless communication unit to and implanted rhythm of the heart sensor, microcontroller passes through the rhythm of the heart sensor and gathers heart rate signal, control the pulsed electricity signal of pulsed electricity signal generation unit in order to produce pulse width, amplitude, tunable frequency acts on vagus nerve through stimulating electrode, the change situation of the rhythm of the heart of microcontroller in according to certain time quantum sets up pulsed electricity signal generation unit's mode, this implanted vagal stimulation system does not rely on the action of external part, opens interim mode by oneself according to patient's the state of an illness.
Description
Technical field
A kind of implanted vagal stimulation system of the utility model, belongs to Implanted medical system technical field.
Background technology
Nerve stimulation is by as the therapy to many illnesss.The example of neural stimulation therapy includes being asked for breathing
Topic, such as sleep disordered breathing (sleep disordered breathing), controlling of blood pressure, such as treating hypertension
(hypertension), cardiac rhythm management (cardiac rhythm management), myocardial infarction and ischemic (myocardial
Infarction and ischemia), heart failure (heart failure, HF), epilepsy (epilepsy), depression
(depression), pain, antimigraine (migraines), feeding desorder (eating disorder) and obesity
(obesity), and dyskinesia (movement disorder) neural stimulation therapy.
Existing various embedded system embodiments include impulse generator in the prior art, and it is suitable for by implanted
Electrode delivery electric signals are to vagus nerve, so as to provide Vagus Nerve Stimulation treatment with the intensity for programming.Electric signal has programming
Parameter, so as to program intensity provide Vagus Nerve Stimulation treatment.Meanwhile, impulse generator also provides one in response to coming from
The action of outside functional unit and open the mode of operation of delivering electric signal.For example, common opening ways include using control
Magnet processed, so as to the action for approaching and leaving near the impulse generator in response to the control magnet, is opened as functional unit
Open the odd-job pattern of delivering electric signal.However, there is many defects, including user's illness hair in scheme of the prior art
Had difficulties using functional unit when making, and the accident of mode of operation is opened caused by presence interference magnetic field or magnet misoperation
It is dynamic.
Meanwhile, the serious complication of embedded nerve stimulator is electrode fracture, especially in the initial stage for the treatment of；And
And, it is softer in the harder metalwork of middle and later periods Neural stimulation electrodes and compared with soft conduit connection because firmness change gradient is big
Electrode cable it is easily tired, with tissue and nerve compliance it is poor.
The content of the invention
The purpose of this utility model is that offer is a kind of not to be relied on the action of extraneous part and starts odd-job pattern
Implanted vagal stimulation system, odd-job pattern can voluntarily be opened according to the state of an illness of patient, and be adapted to long-term
Implantation human body and neural compliance are good, and bulk strength graded is uniform.
The technical solution of the utility model is：
A kind of implanted vagal stimulation system, including implant part and external part, wherein：
Implant part includes stimulating electrode, microcontroller, pulse electrical signal generation unit and radio communication unit, Yi Jizhi
Enter formula heart rate sensor；Wherein described stimulating electrode is applied to vagus nerve output electro photoluminescence；The microcontroller passes through the heart
Rate sensor gathers heart rate signal, controls the pulse electrical signal generation unit to produce the pulse of pulsewidth, amplitude, frequency-adjustable
Electric signal, vagus nerve is acted on by stimulating electrode；Change shape of the microcontroller according to the heart rate in certain period of time
Condition sets the mode of operation of the pulse electrical signal generation unit；The pulse electrical signal generation unit uses constant pressure or constant current side
Formula exports pulse electrical signal, according to the impedance of stimulating electrode, sets power output size；The stimulating electrode is using spiral god
Through stimulating electrode, including one has the spirality main body being wound on vagus nerve that is suitable to of inner surface, and is arranged at described
The conductor part of inner surface；
External part is by man-machine interaction unit, radio communication unit and electric power generating composition；The nothing of implant part and external part
Line communication uses electromagnetic communication mode；
The extension lead includes internal connecting line, outside sleeve pipe, and away from stimulation inside described sleeve pipe
The encapsulating portion of device one end；
The encapsulating portion is 2-12mm in the length that inside pipe casing extends, so as to ensure the company between connecting line, sleeve pipe
While connecing intensity, it is ensured that the overall flexibility of extension lead.
Preferably, the changes in heart rate situation includes that by the first changes in heart rate be the second heart rate, and microcontroller is according to heart rate
The mode of operation of pulse electrical signal generation unit described in the ratio setting of change, when second heart rate and first heart rate
When ratio exceedes threshold value, the pulse electrical signal generation unit enters odd-job pattern by normal mode of operation.
Preferably, the changes in heart rate situation includes that by the first changes in heart rate be the second heart rate, and microcontroller is according to heart rate
The numerical value of change sets the mode of operation of the pulse electrical signal generation unit, when second heart rate and first heart rate
When difference exceedes threshold value, the pulse electrical signal generation unit enters odd-job pattern by normal mode of operation.
Preferably, the changes in heart rate situation includes that by the first changes in heart rate be the second heart rate, and microcontroller is according to heart rate
The speed of change sets the mode of operation of the pulse electrical signal generation unit, when first heart rate to second heart rate
When rate of change exceedes threshold value, the pulse electrical signal generation unit enters odd-job pattern by normal mode of operation.
Preferably, the encapsulating portion is 4-8mm in the length that inside pipe casing extends.
By using above technical scheme, the utility model can voluntarily open odd-job according to the state of an illness of patient
Pattern.
Brief description of the drawings
Fig. 1 is implanted vagal stimulation system structure diagram of the invention.
Fig. 2 is the electrode structure schematic diagram of implanted vagal stimulation system of the invention.
Specific embodiment
As shown in Figure 1, a kind of implanted vagal stimulation system 10, including implant part and external part, wherein：
Implant part is implanted in the body of patient 12, including stimulator 14, extension lead 16, stimulating electrode 18, and implantation
Formula heart rate sensor 20, wherein stimulator 14 include microcontroller, pulse electrical signal generation unit and radio communication unit again, from
And receive and perform the instruction from programmable device 22；Wherein described stimulating electrode 18 is applied to the output electro photoluminescence of vagus nerve 24
And fixed by fixed component 26；The microcontroller gathers heart rate by the heart rate sensor 20 being in contact with cardiac muscular tissue 28
Signal, controls the pulse electrical signal generation unit to produce the pulse electrical signal of pulsewidth, amplitude, frequency-adjustable, by stimulating
Electrode 18 acts on vagus nerve 24；The microcontroller sets the arteries and veins according to the changing condition of the heart rate in certain period of time
Rush the mode of operation of electric signal generation unit；The pulse electrical signal generation unit is using constant pressure or current constant mode output pulse electricity
Signal, according to the impedance at stimulating electrode 18, sets power output size.
External part includes programmable device 22, is mainly made up of man-machine interaction unit 30, radio communication unit 32；Implant part
Wireless telecommunications with external part use electromagnetic communication mode.
Preferably, the changes in heart rate situation includes that by the first changes in heart rate be the second heart rate, and microcontroller is according to heart rate
The mode of operation of pulse electrical signal generation unit described in the ratio setting of change, when second heart rate and first heart rate
When ratio exceedes threshold value, the pulse electrical signal generation unit enters odd-job pattern by normal mode of operation.
Preferably, the changes in heart rate situation includes that by the first changes in heart rate be the second heart rate, and microcontroller is according to heart rate
The numerical value of change sets the mode of operation of the pulse electrical signal generation unit, when second heart rate and first heart rate
When difference exceedes threshold value, the pulse electrical signal generation unit enters odd-job pattern by normal mode of operation.
Preferably, the changes in heart rate situation includes that by the first changes in heart rate be the second heart rate, and microcontroller is according to heart rate
The speed of change sets the mode of operation of the pulse electrical signal generation unit, when first heart rate to second heart rate
When rate of change exceedes threshold value, the pulse electrical signal generation unit enters odd-job pattern by normal mode of operation.
As shown in Figure 2, extension lead 16 includes internal connecting line 161, outer sleeve 162, and encapsulating portion 163.
Two connecting lines 161 are typically provided with sleeve pipe 162, the connecting line 161 stretches out in the one end of sleeve pipe 162, and by being located at
The encapsulating portion 163 of the end is mutually fixed with outer sleeve 162.Encapsulating portion 163 extends certain length inside sleeve pipe 162, to protect
The bonding strength of both cards.But, if encapsulating minister spends the overall flexibility that can reduce extension lead greatly, influence patient's
Use.In order to while the bonding strength between connecting line 161, sleeve pipe 162 is ensured, it is ensured that the entirety of extension lead 16 is soft
Property, the length that encapsulating portion 163 extends inside sleeve pipe 162 is generally 2-12mm, and preferably 4-8mm.
Stimulating electrode 18 in implant part is fixed on vagus nerve 24 using spiral fixed component 26.The fixed part
Part 26 includes that one is suitable to be wound in the spirality main body 261 on vagus nerve, and one and extension lead 16 with inner surface
The connecting portion 262 that the connecting line 161 in portion is fixedly connected with.Connecting line 161 inside extension lead 16 is electrically connected with stimulating electrode 18, from
And impulse stimulation electric signal is delivered to stimulating electrode 18 from the stimulator 14.
The above is only it is of the present utility model preferred embodiment, those skilled in the art can also the utility model essence
Other changes are done in god, these changes done according to the utility model spirit should all be included in required by the utility model and protect
In the range of shield.
Claims (2)
1. a kind of implanted vagal stimulation system, including implant part and external part, wherein：
Implant part is implanted in patient（12）In vivo, including stimulator（14）, extension lead（16）, stimulating electrode（18）, and
Implanted heart rate sensor（20）, wherein stimulator（14）Include microcontroller, pulse electrical signal generation unit and channel radio again
News unit, so as to receive and perform from programmable device（22）Instruction；Wherein described stimulating electrode（18）Suitable for absent-minded to being confused
Through（24）Output electro photoluminescence, it passes through fixed component（26）It is fixed；
External part includes programmable device（22）, mainly by man-machine interaction unit（30）, radio communication unit（32）Constitute；Implanting portion
Divide and use electromagnetic communication mode with the wireless telecommunications of external part；
Characterized in that, the extension lead（16）Including internal connecting line（161）, outside sleeve pipe（162）, and be located at
Described sleeve pipe（162）The internal encapsulating portion away from stimulator one end（163）；
The encapsulating portion（163）In sleeve pipe（162）The length that inside extends is 2-12mm, so as to ensure connecting line（161）, set
Pipe（162）Between bonding strength while, it is ensured that extension lead（16）Overall flexibility.
2. implanted vagal stimulation system according to claim 1, it is characterised in that the encapsulating portion（163）
Sleeve pipe（162）The length that inside extends is 4-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435699.9U CN206167634U (en) | 2016-05-13 | 2016-05-13 | Implanted vagal stimulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435699.9U CN206167634U (en) | 2016-05-13 | 2016-05-13 | Implanted vagal stimulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206167634U true CN206167634U (en) | 2017-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620435699.9U Active CN206167634U (en) | 2016-05-13 | 2016-05-13 | Implanted vagal stimulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206167634U (en) |
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2016
- 2016-05-13 CN CN201620435699.9U patent/CN206167634U/en active Active
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