CN105978110B - A kind of wireless charging device and its sacral nerve stimulation system - Google Patents
A kind of wireless charging device and its sacral nerve stimulation system Download PDFInfo
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- CN105978110B CN105978110B CN201610560230.2A CN201610560230A CN105978110B CN 105978110 B CN105978110 B CN 105978110B CN 201610560230 A CN201610560230 A CN 201610560230A CN 105978110 B CN105978110 B CN 105978110B
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- 230000007383 nerve stimulation Effects 0.000 title claims abstract description 48
- 230000000638 stimulation Effects 0.000 claims abstract description 94
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000004936 stimulating effect Effects 0.000 claims abstract description 7
- 238000001727 in vivo Methods 0.000 claims description 69
- 238000000338 in vitro Methods 0.000 claims description 24
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 210000005036 nerve Anatomy 0.000 abstract description 16
- 239000007943 implant Substances 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000027939 micturition Effects 0.000 description 4
- 206010046543 Urinary incontinence Diseases 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000013872 defecation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001537 neural effect Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 210000005070 sphincter Anatomy 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 208000000187 Abnormal Reflex Diseases 0.000 description 1
- 208000034347 Faecal incontinence Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000035859 hyperreflexia Effects 0.000 description 1
- 206010020745 hyperreflexia Diseases 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 208000020431 spinal cord injury Diseases 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 208000026533 urinary bladder disease Diseases 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- H02J7/025—
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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
- A61N1/36007—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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- H02J5/005—
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- Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Electrotherapy Devices (AREA)
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Abstract
The present invention provides a kind of wireless charging device and its sacral nerve stimulation systems, in the setting charging receiving coil that implants.In the not enough power supply of internal battery, external charging transmitting coil is set at the position to match with charging receiving coil, wireless charging is carried out by the internal battery that is coupled as between coil.And, internal charging control unit is additionally provided with implanting, the information about power that the electricity of internal battery is detected, and will test by the first antenna of sacral nerve stimulation system and the second antenna transmission to external, to prompt user that need to charge to internal battery.In addition, charging receiving coil is also powered stimulating electrode when charging to internal battery, stimulating electrode still can implement electric current stimulation to sacral nerve when guaranteeing charging.Present invention reduces the risks that patient replaces internal battery, increase the safety of sacral nerve stimulation system.
Description
Technical Field
The invention relates to a nerve stimulator, in particular to a wireless charging device capable of wirelessly charging an implant and an implanted sacral nerve stimulation system capable of wirelessly charging.
Background
Urinary incontinence, frequent micturition and other bladder diseases are usually caused by spinal cord injury of nervous system, and medical research and practice have confirmed that applying electrical stimulation to relevant nerves is an effective treatment method. Many researches show that the stimulation of the sacral nerve anterior root can influence the actions of bladder detrusor muscle and external urethral sphincter, so that the bladder detrusor muscle hyperreflexia can be inhibited by using a proper stimulation signal, and the aim of relieving the urinary incontinence is fulfilled; specific stimulation pulse sequences may also be employed to stimulate the bladder detrusor muscle to coordinate with the external urethral sphincter to achieve controlled urination. Therefore, the sacral nerve stimulator should also be used.
The sacral nerve stimulator is a small programmable device implantable in the buttocks of a patient with urinary or fecal incontinence. The sacral nerve stimulator is typically implanted in the hip and connected to the sacral nerve via a lead, sending electrical pulse signals to the sacral nerve via a pulse generator, modulating the neural reflexes of the bladder and bowel associated with urination and defecation, allowing abnormal neural reflexes to regain balance, and the patient can control the switch and programmed settings of the stimulator via an external device like a remote control, thereby allowing the symptoms of urination and defecation dysfunction to be controlled. At present, most of the existing sacral nerve stimulation products adopt a built-in lithium battery for power supply, and have the defect that the sacral nerve stimulation products can only be used once. When the service life of the battery is up to the end, the battery needs to be replaced by an operation in time, which causes damage to the health of the patient and greatly increases the use cost of the patient. In addition, due to the development of technology, the environment is filled with various strong and weak wireless signals, and the sacral nerve stimulation system is easily interfered. The invention mainly reduces the risk of replacing the lithium battery for the patient, reduces the use cost and increases the system safety
Disclosure of Invention
In view of the above-described shortcomings of the prior art, it is an object of the present invention to provide a wireless charging device and a sacral nerve stimulation system thereof for solving the charging problem of a battery implanted in a sacral nerve stimulation system in the prior art and the problem that the sacral nerve stimulation system has been disturbed.
To achieve the above and other related objects, the present invention provides a wireless charging device suitable for a sacral nerve stimulation system, the wireless charging device comprising: an in-vivo charging section and an in-vitro charging section; wherein the in vivo charging part is implanted in a body and comprises a built-in battery, a charging receiving coil and an in vivo charging control unit; the built-in battery is respectively connected with the charging receiving coil, the in-vivo charging control unit and a first antenna of the sacral nerve stimulation system, which is positioned in the body; the external charging part comprises a charging transmitting coil and an external charging control unit; the external charging control unit is respectively connected with the charging transmitting coil and a second antenna of the sacral nerve stimulation system, which is positioned outside the body; the charging transmitting coil is positioned and fixed at a position matched with the charging receiving coil; the in-vivo charging control unit detects the electric quantity information of the built-in battery and sends the electric quantity information to the in-vitro charging part through the first antenna, and the in-vitro charging control unit receives the electric quantity information through the second antenna and sends a charging instruction to the charging transmitting coil and the in-vivo charging part according to the electric quantity information; according to the charging instruction, the charging transmitting coil and the charging receiving coil realize electric energy transmission between the in-vivo charging part and the in-vitro charging part through coupling, so that the charging of the built-in battery is realized; and while charging the built-in battery, also for the internal charge control unit and the first antenna supplies power.
In an embodiment of the present invention, a magnet is disposed at each of the charging transmitting coil and the charging receiving coil; the charging transmitting coil is positioned and fixed at a position where the charging receiving coil is aligned with the magnet.
In an embodiment of the invention, the magnetic force of the magnet at the charging transmitting coil is adjustable.
In an embodiment of the invention, the external charging control unit is detachably connected to the charging transmitting coil.
In an embodiment of the present invention, the in-vivo charging part further includes a first charging circuit for voltage stabilization, connected between the charging receiving coil and the internal battery, and the first charging circuit is further connected to the first antenna and the in-vivo charging control unit, respectively; through the internal charging control unit, the first charging circuit is controlled to charge the built-in battery and supply power to the internal charging control unit and the first antenna.
In an embodiment of the invention, the external charging part further includes: the second charging circuit is respectively connected with the charging transmitting coil and the in-vitro charging control unit and is detachably connected with an external power supply; wherein the external power source comprises alternating current.
In an embodiment of the invention, the external charging part further includes an external battery connected to the second charging circuit, and when no external power supply supplies power to the second charging circuit, the external charging control unit controls the second charging circuit to be supplied with power by the external battery.
In an embodiment of the invention, the external charging part further includes: and the prompting unit is connected with the external charging control unit and used for giving an alarm prompt when the received electric quantity information shows that the electric quantity of the built-in battery is too low and giving a prompt when the received electric quantity information shows that the built-in battery is fully charged.
The invention also discloses a sacral nerve stimulation system, comprising: the wireless charging device, the external stimulation control unit and the second antenna which are positioned outside the body, and the internal stimulation control unit, the stimulation electrode and the first antenna which are implanted in the body; the external stimulation control unit is connected with the second antenna and used for sending a stimulation instruction to the internal stimulation control unit through the second antenna and the first antenna; the in-vivo stimulation control unit is connected with the first antenna, the charging receiving coil and the built-in battery and is used for receiving the stimulation instruction sent by the in-vitro stimulation control unit through the first antenna; the stimulating electrode is respectively connected with the in-vivo stimulation control unit, the charging receiving coil and the built-in battery and used for implementing current stimulation in vivo.
In an embodiment of the present invention, the charging receiving coil supplies power to the in-vivo stimulation control unit and the stimulation electrode while wirelessly charging the internal battery, so as to ensure that current stimulation can be performed while wirelessly charging.
In one embodiment of the present invention, the sacral nerve stimulation system preferably comprises: a first ID identification unit connected to the in-vivo charging control unit, the first antenna, and the in-vivo stimulation control unit, respectively, for performing ID identification on a signal received from the first antenna; the first radio frequency transceiving unit is respectively connected with the in-vivo charging control unit, the first antenna and the in-vivo stimulation control unit and is used for realizing the interconversion between radio frequency signals and the stimulation instruction, the charging instruction and/or the electric quantity information; the second ID identification unit is respectively connected with the second antenna, the in-vitro charging control unit and the in-vitro stimulation control unit and is used for carrying out ID identification on signals received by the second antenna; and the second radio frequency transceiving unit is respectively connected with the external charging control unit, the second antenna and the external stimulation control unit and is used for realizing the interconversion between the radio frequency signal and the stimulation instruction, the charging instruction and/or the electric quantity information.
As described above, according to the wireless charging device and the sacral nerve stimulation system thereof, the electric energy transmission channel from the outside to the inside of the body is established through the coupling between the coils, so that the wireless charging of the battery implanted in the body in the medical equipment is realized, the risk of replacing the battery by a patient is reduced, and the cost is reduced; furthermore, the invention also detects the electric quantity information of the built-in battery in the body in real time, and transmits the electric quantity information through the signal transmission channel (antenna) of the existing sacral nerve stimulation system to prompt the electric quantity condition in the body of the user so as to carry out charging operation in time; in addition, the external charging transmitting coil is detachable, and is connected with the external charging control unit or the first charging circuit only when the built-in battery is powered, so that the structure of the whole sacral nerve stimulation system is simpler; in addition, the charging transmitting coil outside the body and the charging receiving coil inside the body are positioned and fixed through the magnet, so that the positioning and the fixing between the two coils are simpler; the invention can charge the built-in battery and simultaneously utilize the stimulating electrode to stimulate the sacral nerve by current. The sacral nerve stimulation system reduces the risk of replacing an internal battery of a patient, reduces unnecessary medical expenses of the patient, and increases the safety of the whole sacral nerve stimulation system.
Drawings
Fig. 1 shows a schematic structural diagram of a sacral nerve stimulation system including a wireless charging device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a wireless charging device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram illustrating a normal operation mode of a sacral nerve stimulation system according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram illustrating a normal charging mode of operation of a sacral nerve stimulation system according to an embodiment of the invention.
Fig. 5 is a schematic structural diagram illustrating an emergency charging mode of operation of a sacral nerve stimulation system, according to an embodiment of the invention.
Description of the element reference numerals
100 implant
110 in vivo stimulation control unit
120 stimulating electrode
130 first antenna
140 first ID identification unit
150 first radio frequency transceiver unit
200 in vitro
210 external stimulation control unit
220 second antenna
230 second ID identification unit
240 second radio frequency transceiver unit
300 wireless charging device
310 built-in battery
320 charging receiving coil
330 in-vivo charging control unit
340 first charging circuit
350 charging transmitting coil
360 external charging control unit
370 second charging circuit
380 external battery
390 presentation unit
400 external power supply
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
According to the wireless charging device and the sacral nerve stimulation system thereof, the charging coils are respectively arranged at the positions matched with each other in vivo and in vitro, so that an electric energy wireless transmission channel between the internal part and the external part of the body is established, and the wireless charging of an internal battery in the body is realized.
The present embodiments disclose a sacral nerve stimulation system that includes a wireless charging device. Wherein, the sacral nerve stimulation system is shown in fig. 1, and comprises: an in vivo stimulation control unit 110, a stimulation electrode 120, and a first antenna 130 located within the implant 100; an extracorporeal stimulation control unit 210 and a second antenna 220 located outside the body 200.
Wherein, the in-vivo stimulation control unit 110 is respectively connected with the stimulation electrode 120 and the first antenna 130; the external stimulation control unit 210 is connected to a second antenna 220.
The first antenna 130 and the second antenna 220 both use radio frequency antennas, and radio signals are transmitted by radio frequency.
The in vitro stimulation control unit 210 is configured to issue a stimulation instruction in vitro; the stimulation instructions are transmitted via the first antenna 130 and the second antenna 220; the in vivo stimulation control unit 110 receives the stimulation instruction and directly controls the stimulation electrode 120 to perform current stimulation on the sacral nerve.
Also, in order to ensure the accuracy of signal transmission between the first antenna 130 and the second antenna 220 of the entire sacral nerve stimulation system, a first ID recognition unit 140 located inside the implant 100 and a second ID recognition unit 230 located outside the body 200 are added to the sacral nerve stimulation system. The signals transmitted and received between the first antenna 130 and the second antenna 220 are ID-identified by the first ID identification unit 140 and the second ID identification unit 230 to ensure that the received or transmitted signals are of the sacral nerve stimulation system. In the present embodiment, the first ID identification unit 140 and the second ID identification unit 230 are repeatedly compared at a certain frequency to realize ID identification, so as to ensure correct identification.
Further, a first rf transceiver unit 150 is added between the first antenna 130 and the in-vivo stimulation control unit 110, a second rf transceiver unit 240 is added between the second antenna 220 and the in-vitro stimulation control unit 210, and the first rf transceiver unit 150 and the second rf transceiver unit 240 realize the conversion between rf signals.
As shown in fig. 1 and 2, a wireless charging device 300 located within a sacral nerve stimulation system includes: an in-vivo charging section and an in-vitro charging section;
the in-vivo charging section includes: an internal battery 310, a charge receiving coil 320, and an in-body charge control unit 330. The charging receiving coil 320 is respectively connected with the built-in battery 310, the in-vivo charging control unit 330, the first antenna 130, the in-vivo stimulation control unit 110, the stimulation electrode 120, the first ID identification unit 140 and the first radio frequency transceiver unit 150; the in-body charging control unit 330 is also connected to the built-in battery 310, the first antenna 130, the first ID identification unit 140, and the first rf transceiver unit 150, respectively.
The in-vivo charging control unit 330 is configured to detect battery information of the internal battery 310, convert the battery information into a radio frequency signal via the first radio frequency transceiver unit 150, and transmit the radio frequency signal to the second antenna 220 through the first antenna 130; and controls the charging receiving coil 320 to charge the internal battery 310 according to the charging instruction which is received from the external charging part and verified by the first ID identification unit, and supplies power to the internal charging control unit 330, the first antenna 130, the internal stimulation control unit 110, the stimulation electrode 120, the first ID identification unit 140 and the first rf transceiver unit 150.
When the wireless charging is not performed, the built-in battery 310 is used for supplying power to the in-vivo charging control unit 330, the first antenna 130, the in-vivo stimulation control unit 110, the first ID identification unit 140 of the stimulation electrode 120 and the first rf transceiver unit 150;
the charging receiving coil 320 is used for charging the built-in battery 310, and while charging the built-in battery 310, the in-vivo charging control unit 330, the first antenna 130, the in-vivo stimulation control unit 110, the stimulation electrode 120, the first ID identification unit 140 and the first rf transceiver unit 150 can be simultaneously powered, so as to ensure that the stimulation electrode 120 can still perform current stimulation on the sacral nerve while charging, and the whole implanted part of the sacral nerve stimulation system can still operate normally.
Further, in order to stabilize the charging voltage of the internal battery 310 and stabilize the power supply voltage to the in-vivo charging control unit 330, the first antenna 130, the in-vivo stimulation control unit 110, the stimulation electrode 120, the first ID identification unit 140 and the first rf transceiver unit 150, a first charging circuit 340 for voltage stabilization is directly connected to the charging receiving coil 320 and the internal battery 310; the first charging circuit 340 is also connected to the in-vivo charging control unit 330, the first antenna 130, the in-vivo stimulation control unit 110, the stimulation electrode 120, the first ID identification unit 140, and the first rf transceiver unit 150, respectively. When the built-in battery 310 is wirelessly charged, the first charging circuit 340 is used for simultaneously providing electric energy for the in-vivo charging control unit 330, the first antenna 130, the in-vivo stimulation control unit 110, the stimulation electrode 120, the first ID identification unit 140 and the first rf transceiver unit 150 in addition to charging the built-in battery 310, so as to ensure that the stimulation electrode 120 can still perform current stimulation on the sacral nerve while wirelessly charging.
The external charging section includes a charging transmitting coil 350 and an external charging control unit 360. The external charging control unit 360 is respectively connected to the second antenna 220, the second ID identification unit 230 and the second rf transceiver unit 240, and is configured to issue a charging command to the internal charging unit according to the received information of the electric quantity of the internal battery.
The charging transmitting coil 350 is detachably connected with the external charging control unit 360. When the built-in battery 310 needs to be charged wirelessly, the charging transmitting coil 350 is connected with the external charging control unit 360 through a socket plug; when the internal battery 310 is not required to be wirelessly charged, the charging transmitting coil 350 is not connected to the external charging control unit 360.
Further, when wireless charging is performed, the charging transmitting coil 350 is to be positioned and fixed at a position matching the charging receiving coil 320, and therefore, a magnet is disposed on each of the charging receiving coil 320 and the charging transmitting coil 350, and the charging transmitting coil 350 can be positioned and fixed by the magnet. And, the magnetic force of the magnet located at the charging transmitting coil 350 is adjustable, and the magnet can adapt to different skin flap thicknesses by adjusting the magnetic force of the magnet, so that the positioning effect of the charging transmitting coil 350 in use is improved.
The power source for charging the transmitting coil 350 can be an external power source or an external battery, so as not to be limited by the use environment. The power supplied by the external power source 400 and the external battery is different: one is an alternating current with an excessive voltage; one is a steady direct current. Therefore, in order to meet different requirements, the external charging part further comprises a second charging circuit 370 and an external battery 380. The second charging circuit 370 is connected to the external charging control unit 360, the charging transmitting coil 350 and the external battery 380, respectively; is detachably connected to the external power supply 400 through a socket. The charging transmitting coil 350 controls the second charging circuit 370 to supply power by using the external power source 400 or the external battery 380 through the external charging control unit 360:
under the condition that the external power supply 400 exists in the surrounding environment, the second charging circuit 370 is connected with the external power supply 400 through a socket, the external charging control unit 360 controls the second charging circuit 370 to be disconnected from the external battery 380, and the external power supply 400 supplies power to the charging transmitting coil through the second charging circuit 370;
in the case of no external power source 400 in the surrounding environment, the external charging control unit 360 controls the second charging circuit 370 to directly use the external battery 380, and the external battery 380 supplies power to the charging transmitting coil through the second charging circuit 370.
In order to prompt the user to charge the internal battery, a prompt unit 390 is added to the external charging part, connected to the external charging control unit 360, for alarming when the received power information shows that the power of the internal battery is too low, and prompting the user when the internal battery is fully charged. In the present embodiment, the prompt unit 390 is an audible and visual alarm unit.
The sacral nerve stimulation system including the wireless charging device of the present embodiment has three modes of operation:
1) and (3) a normal working mode: the implant parts of the sacral nerve stimulation system are all powered by means of the built-in battery 310 of the wireless charging device, as shown in fig. 3 (the external power source 400 and the external battery 380 are not identified in fig. 3, since in this case the second charging circuit 370 of the extracorporeal part is not connected to the charging transmitting coil 350, nor does it draw power from the external power source 400 or the external battery 380):
the in-vivo charging control unit 330 controls the built-in battery 310 to respectively supply power to the first antenna 130, the first rf transceiver unit 150, the in-vivo stimulation control unit 110, the stimulation electrode 120 and the in-vivo charging control unit 330, and at this time, controls the first charging circuit 340 not to supply power to the first antenna 130, the first rf transceiver unit 150, the in-vivo stimulation control unit 110, the stimulation electrode 120 and the built-in battery 310;
the first rf transceiver unit 150 receives the electrical signal sent by the first antenna 130, and the electrical signal is transmitted to the first ID identification unit 140 via the first rf transceiver unit 150, and the signal source is compared according to the built-in program file, and whether the signal source identity is the pairing ID is determined, if so, the in vivo stimulation control unit 110 converts the electrical signal into the current stimulation program according to the encoding rule, and the stimulation electrode 120 performs current stimulation on the sacral nerve. At this time, in the external portion, the charging transmission coil 350 is not connected to the external charging control unit 360 or the second charging circuit 370.
2) And (3) a normal charging working mode: as shown in fig. 4 (in fig. 4, since the power of the second charging circuit 370 is obtained by connecting the external power source 400, it does not depend on the external battery 380 for obtaining power, therefore, for clarity, the external battery 380 is not identified in fig. 4), the external power source 400 provides power to charge the internal battery 310:
the electric quantity information of the built-in battery 310 is sent out by the first antenna 130 through the first radio frequency transceiver unit 150 and the in-vivo charging control unit 330, the in-vitro charging control unit 360 receives the electric quantity information through the second radio frequency transceiver unit 240, judges the electric quantity information, and informs a user through the alarm unit 390 when the electric quantity is insufficient, so as to remind the user of charging in time;
at this time, in vitro, the user connects the second charging circuit 370 to the charging transmitting coil 350 and the external power source 400 through the sockets, and fixes the charging transmitting coil 350 and the charging receiving coil 320 by attracting each other through the magnets. If the external power source 400 is an ac power source, the second charging circuit 370 needs to convert between ac power and dc power. Further, the external charging control unit 360 performs ID identification comparison through the second rf transceiver unit 240, the second antenna 220, the second ID identification unit 230, the first antenna 130, the first rf transceiver unit 150, and the second ID identification unit 140, so as to avoid the mixed use of the external charging control unit 360 and the interference of other wireless signals.
When the in-vivo stimulation device is implanted in a body, the in-vivo charging control unit 330 controls the first charging circuit 340 to charge the internal battery 310, and at the same time, the first charging circuit 340 also supplies power to the first antenna 130, the first rf transceiver unit 150, the in-vivo stimulation control unit 110, the stimulation electrode 120 and the in-vivo charging control unit 330. While charging, the stimulation electrodes 120 can still perform current stimulation of the sacral nerve according to the stimulation instructions.
When the internal battery 310 is fully charged, the in-body charging control unit 330 detects that the capacity of the internal battery 310 is full, and then resumes the power supply from the internal battery 310 to the implanted part.
The in-body charging control unit 330 transmits the battery full signal through the first rf transceiver unit 150 via the first antenna 130. The second antenna 220 receives the signal and then transmits the signal to the second rf transceiver 240 and the external charging control unit 360. The external charging control unit 360 reminds the user of the full charge of the battery through the alarm unit 390, and controls the charging transmitting coil 350 to stop the wireless charging through the second charging circuit 370. The user takes off the charging transmitting coil 350 according to the sound-light prompt, and disconnects the external power supply 400 to complete the wireless charging of the built-in battery 310.
3) The emergency charging mode, as shown in fig. 4, is to charge the internal battery 310 with power supplied from the external battery 380:
under the emergency charging mode, the internal charging part of the wireless charging device is completely the same as that under the normal charging mode, and only the external charging part has certain change.
The emergency charging operation mode is a mode in which the external power source 400 is not provided in the surrounding environment when charging is required, and thus power is supplied from the external battery 380 of the external charging section. The user does not need to connect the second charging circuit 370 to the external power source 400, but only needs to connect it to the charging transmitting coil 350, and further needs to fix the charging transmitting coil 350 and the charging receiving coil 320 by attracting each other with magnets.
In addition, in order to highlight the innovative part of the present invention, a unit which is not so closely related to solve the technical problem proposed by the present invention is not introduced in the present embodiment, but this does not indicate that there is no other unit in the present embodiment.
In summary, according to the wireless charging device and the sacral nerve stimulation system thereof, the electric energy transmission channel from the outside to the inside of the body is established through the coupling between the coils, so that the wireless charging of the battery implanted in the body in the medical equipment is realized, the risk of replacing the battery by a patient is reduced, and the cost is reduced; furthermore, the invention also detects the electric quantity information of the built-in battery in the body in real time, and transmits the electric quantity information through the signal transmission channel (antenna) of the existing sacral nerve stimulation system to prompt the electric quantity condition in the body of the user so as to carry out charging operation in time; in addition, the external charging transmitting coil is detachable, and is connected with the external charging control unit or the first charging circuit only when the built-in battery is powered, so that the structure of the whole sacral nerve stimulation system is simpler; in addition, the charging transmitting coil outside the body and the charging receiving coil inside the body are positioned and fixed through the magnet, so that the positioning and the fixing between the two coils are simpler; the invention can charge the built-in battery and simultaneously utilize the stimulating electrode to stimulate the sacral nerve by current. The sacral nerve stimulation system reduces the risk of replacing an internal battery of a patient, reduces unnecessary medical expenses of the patient, and increases the safety of the whole sacral nerve stimulation system. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A wireless charging device adapted for use with a sacral nerve stimulation system, the wireless charging device comprising: an in-vivo charging section and an in-vitro charging section; wherein,
the in-vivo charging part is implanted in a body and comprises a built-in battery, a charging receiving coil and an in-vivo charging control unit; the built-in battery is respectively connected with the charging receiving coil, the in-vivo charging control unit and a first antenna of the sacral nerve stimulation system, which is positioned in the body;
the external charging part comprises a charging transmitting coil and an external charging control unit; the external charging control unit is respectively connected with the charging transmitting coil and a second antenna of the sacral nerve stimulation system, which is positioned outside the body; the external charging control unit is detachably connected with the charging transmitting coil; the external charging section further comprises: the second charging circuit is respectively connected with the charging transmitting coil and the in-vitro charging control unit and detachably connected with an external power supply; wherein the external power source comprises alternating current; the external charging part also comprises an external battery connected with the second charging circuit, and when no external power supply supplies power to the second charging circuit, the external charging control unit controls the second charging circuit to be supplied with power by the external battery;
the charging transmitting coil is positioned and fixed at a position matched with the charging receiving coil; wherein, a magnet is respectively arranged at the charging transmitting coil and the charging receiving coil; the charging transmitting coil is positioned and fixed at a position matched with the charging receiving coil through the magnet;
the in-vivo charging control unit detects the electric quantity information of the built-in battery and sends the electric quantity information to the in-vitro charging part through the first antenna, and the in-vitro charging control unit receives the electric quantity information through the second antenna and sends a charging instruction to the charging transmitting coil and the in-vivo charging part according to the electric quantity information; according to the charging instruction, the charging transmitting coil and the charging receiving coil realize electric energy transmission between the in-vivo charging part and the in-vitro charging part through coupling, so that the charging of the built-in battery is realized; and while charging the built-in battery, also supply power to the in-vivo charging control unit and the first antenna;
the in-vivo charging section further includes a first ID identification unit; the first antenna is connected with the in-vivo charging control unit and the first antenna respectively and used for carrying out ID identification on signals received by the first antenna;
the external charging part also comprises a second ID identification unit which is respectively connected with the second antenna and the external charging control unit and is used for carrying out ID identification on the signals received by the second antenna; the signals transmitted and received between the first antenna and the second antenna are ID-identified by the first ID identifying unit and the second ID identifying unit.
2. The wireless charging device of claim 1, wherein: the in-vivo charging part also comprises a first charging circuit which is connected between the charging receiving coil and the built-in battery and is used for stabilizing voltage, and the first charging circuit is also respectively connected with the first antenna and the in-vivo charging control unit; through the internal charging control unit, the first charging circuit is controlled to charge the built-in battery and supply power to the internal charging control unit and the first antenna.
3. The wireless charging device of claim 1, wherein: the external charging section further comprises:
and the prompting unit is connected with the external charging control unit and used for giving an alarm prompt when the received electric quantity information shows that the electric quantity of the built-in battery is too low and giving a prompt when the received electric quantity information shows that the built-in battery is fully charged.
4. A sacral nerve stimulation system, comprising: the method comprises the following steps: the wireless charging device according to any one of claims 1 to 3, an external stimulation control unit and the second antenna located outside the body, and an internal stimulation control unit, a stimulation electrode and the first antenna implanted inside the body;
the external stimulation control unit is connected with the second antenna and used for sending a stimulation instruction to the internal stimulation control unit through the second antenna and the first antenna;
the in-vivo stimulation control unit is connected with the first antenna, the charging receiving coil and the built-in battery and is used for receiving the stimulation instruction sent by the in-vitro stimulation control unit through the first antenna;
the stimulating electrode is respectively connected with the in-vivo stimulation control unit, the charging receiving coil and the built-in battery and used for implementing current stimulation in vivo.
5. The sacral nerve stimulation system as recited in claim 4, wherein: when the built-in battery is charged wirelessly, the charging receiving coil also supplies power to the in-vivo stimulation control unit and the stimulation electrode, so that current stimulation can be still implemented while wireless charging is ensured.
6. The sacral nerve stimulation system as recited in claim 4, wherein: the sacral nerve stimulation system further comprises:
a first ID identification unit connected to the in-vivo charging control unit, the first antenna, and the in-vivo stimulation control unit, respectively, for performing ID identification on a signal received from the first antenna;
the first radio frequency transceiving unit is respectively connected with the in-vivo charging control unit, the first antenna and the in-vivo stimulation control unit and is used for realizing the interconversion between radio frequency signals and the stimulation instruction, the charging instruction and/or the electric quantity information;
the second ID identification unit is respectively connected with the second antenna, the in-vitro charging control unit and the in-vitro stimulation control unit and is used for carrying out ID identification on signals received by the second antenna;
and the second radio frequency transceiving unit is respectively connected with the external charging control unit, the second antenna and the external stimulation control unit and is used for realizing the interconversion between the radio frequency signal and the stimulation instruction, the charging instruction and/or the electric quantity information.
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| CN106512214A (en) * | 2016-12-20 | 2017-03-22 | 北京品驰医疗设备有限公司 | Implantable sacral nerve stimulator adopting wireless percutaneous charging mode |
| CN106512216A (en) * | 2016-12-20 | 2017-03-22 | 北京品驰医疗设备有限公司 | Sacral nerve stimulation device having wireless charging device |
| CN106786875A (en) * | 2016-12-20 | 2017-05-31 | 北京品驰医疗设备有限公司 | A kind of charging device of sacral nerve stimulation device |
| CN107049320B (en) * | 2017-01-18 | 2019-09-06 | 浙江诺尔康神经电子科技股份有限公司 | A kind of flap Thickness sensitivity circuit and system |
| 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 |
| CN107998505A (en) * | 2017-12-27 | 2018-05-08 | 苏鹏霄 | A kind of wireless charging sacral nerve neuromodulation device |
| CN108174034A (en) * | 2017-12-27 | 2018-06-15 | 苏鹏霄 | Using the system and method for APP real time monitoring sacral nerve neuromodulation devices |
| CN111371131B (en) * | 2018-12-25 | 2024-09-13 | 景昱医疗科技（苏州）股份有限公司 | Wireless charging system for nerve stimulator and undervoltage starting method |
| CN112438716A (en) * | 2020-02-20 | 2021-03-05 | 北京万生人和科技有限公司 | Implanted intracranial pressure monitoring device |
| CN116780787B (en) * | 2023-08-18 | 2023-10-27 | 航天泰心科技有限公司 | Wireless energy supply receiving device implanted in body and wireless power transmission system |
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| KR100792308B1 (en) * | 2006-01-31 | 2008-01-07 | 엘에스전선 주식회사 | A contact-less power supply, contact-less charger systems and method for charging rechargeable battery cell |
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| CN206364522U (en) * | 2016-07-15 | 2017-07-28 | 上海力声特医学科技有限公司 | A kind of wireless charging device and its sacral nerve stimulation system |
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