CN110624146A - Wireless power supply' S supplementary blood supply unit of S-shaped - Google Patents
Wireless power supply' S supplementary blood supply unit of S-shaped Download PDFInfo
- Publication number
- CN110624146A CN110624146A CN201810540189.1A CN201810540189A CN110624146A CN 110624146 A CN110624146 A CN 110624146A CN 201810540189 A CN201810540189 A CN 201810540189A CN 110624146 A CN110624146 A CN 110624146A
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- China
- Prior art keywords
- coil
- inverter
- polymer film
- electroactive polymer
- transmitting coil
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/871—Energy supply devices; Converters therefor
Abstract
The invention relates to a wireless power supply S-shaped auxiliary blood supply device, and belongs to the field of wireless power transmission. The external battery is connected with the inverter, and a bus capacitor is arranged on a circuit connecting the external battery with the inverter; the main controller is connected with the inverter; the inverter is connected with the transmitting coil, a resonance compensation capacitor is connected in series between the inverter and the transmitting coil, the relay coil is nested outside the transmitting coil, and the relay coil is also provided with the resonance compensation capacitor; the transmitting coil and the receiving coil achieve resonance in a magnetic coupling mode, the receiving coil is connected with a high-voltage rectifying and filtering circuit, the high-voltage rectifying and filtering circuit is connected with an electroactive polymer film, a maintaining capacitor is arranged on a circuit formed by connecting the high-voltage rectifying and filtering circuit with the electroactive polymer film, and the electroactive polymer film is S-shaped. The invention assists and replaces the heart blood pumping function and supplies blood to human organs.
Description
Technical Field
The invention relates to a wireless power supply S-shaped auxiliary blood supply device, and belongs to the field of wireless power transmission.
Background
In the treatment process of diseases aiming at heart failure, a human body auxiliary blood supply pump is adopted in the traditional method, namely, a motor device is arranged on a main blood vessel of a heart to assist and replace the blood pumping function of the heart and supply blood to organs of the human body.
However, the motor pump is large in size, so that the motor pump is not beneficial to installation of a surgeon, and heavy in weight, so that the motor pump is also a burden for a patient, and the most main problem is that a power supply required by the motor pump is externally arranged by a subcutaneous operation and an external power supply wire, so that bacteria or virus infection can be caused if a wound is exposed for a long time, and the life health of the patient is seriously threatened.
Disclosure of Invention
The invention aims to solve the problems that the traditional human body auxiliary blood supply device is large in size and external power supply easily causes bacterial infection, thereby threatening the health of a patient. The technical scheme adopted by the provided wireless power supply S-shaped auxiliary blood supply device is as follows:
a wireless power supply S-shaped auxiliary blood supply device is characterized by comprising an external battery, a bus capacitor, a master controller, an inverter, a relay coil, a transmitting coil, a receiving coil, a high-voltage rectifying and filtering circuit, an electroactive polymer film, two resonance compensation capacitors and a maintaining capacitor;
the external battery is connected with the inverter, and a bus capacitor is arranged on a circuit connecting the external battery with the inverter; the main controller is connected with the inverter;
the inverter is connected with the transmitting coil, a resonance compensation capacitor is connected in series between the inverter and the transmitting coil, the relay coil is nested outside the transmitting coil, and the relay coil is also provided with the resonance compensation capacitor; the transmitting coil and the receiving coil achieve resonance in a magnetic coupling mode, the receiving coil is connected with a high-voltage rectifying and filtering circuit, the high-voltage rectifying and filtering circuit is connected with an electroactive polymer film, a maintaining capacitor is arranged on a circuit formed by connecting the high-voltage rectifying and filtering circuit with the electroactive polymer film, and the electroactive polymer film is S-shaped.
Furthermore, the electroactive polymer film is divided into three layers, wherein the upper layer and the lower layer are ferroelectric polymers, and the middle layer is a PVC polymer.
Furthermore, the power supply voltage of the electroactive polymer film is 500V-5kV pulse direct current, and the power of the electroactive polymer film is 5W-10W.
Further, the size of the relay coil is 8cm-12 cm.
Further, the size of the transmitting coil is 10cm-14 cm.
Furthermore, the external battery is a lithium battery, a nickel-metal hydride battery and the like.
Compared with the prior art, the invention has the following effects: the invention relates to a wireless power supply S-shaped auxiliary blood supply device.A high-voltage power supply system is adopted by EAP active film load, high voltage is acted on the surface of an active film, the high voltage punctures the film to generate deformation so as to extrude a blood vessel and generate a blood supply requirement. The electroactive polymer film has the main advantages of completely not needing any liquid, belonging to a dry driving system, and having the characteristics of simple structure, convenient control, small volume, light weight, high system efficiency and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of the electroactive polymer membrane of a wirelessly powered S-shaped auxiliary blood supply device according to the present invention;
FIG. 2 is a schematic view of the wirelessly powered S-shaped auxiliary blood supply device of the present invention being placed inside a human body;
FIG. 3 is a comparison of the operating mode and non-operating mode of a wirelessly powered S-shaped auxiliary blood supply apparatus of the present invention;
FIG. 4 is a circuit diagram of a wirelessly powered S-shaped auxiliary blood supply device according to the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples, but the present invention is not limited to these examples.
The specific implementation mode is as follows: the present embodiment is described with reference to fig. 1 to 4: the wireless power supply S-shaped auxiliary blood supply device is characterized by comprising an external battery 1, a bus capacitor 2, a master controller 3, an inverter 4, a relay coil 5, a transmitting coil 6, a receiving coil 7, a high-voltage rectification filter circuit 8, an electroactive polymer film 9, two resonance compensation capacitors 10 and a maintaining capacitor 11; the external battery 1 is connected with the inverter 4, and a bus capacitor 2 is arranged on a circuit connecting the external battery 1 and the inverter 4; the main controller 3 is connected with the inverter 4; the inverter 4 is connected with the transmitting coil 6, a resonance compensation capacitor 10 is connected in series between the inverter 4 and the transmitting coil 6, the relay coil 5 is nested outside the transmitting coil 6, and the resonance compensation capacitor 10 is further arranged on the relay coil 5; the transmitting coil 6 and the receiving coil 7 achieve resonance in a magnetic coupling mode, the receiving coil 7 is connected with a high-voltage rectifying and filtering circuit 8, the high-voltage rectifying and filtering circuit 8 is connected with an electroactive polymer film 9, a maintaining capacitor 11 is arranged on a circuit formed by connecting the high-voltage rectifying and filtering circuit 8 and the electroactive polymer film (9), and the electroactive polymer film 9 is S-shaped. The electroactive polymer film 9 is divided into three layers, wherein the upper layer and the lower layer are ferroelectric polymers, and the middle layer is a PVC polymer. The power supply voltage of the electroactive polymer film 9 is 500V-5kV pulse direct current, and the power of the electroactive polymer film is 5W-10W. The size of the relay coil 5 is 8cm-12 cm. The size of the transmitting coil 6 is 10cm-14 cm. The external battery 1 is a lithium battery, a nickel-metal hydride battery and the like. The electroactive polymer film 9(EAP) is a new special material, which is divided into 3 layers, wherein the upper and lower layers are ferroelectric polymer, ferroelectric crystal polar polymer, the polymer has electronic dipole moment, and the dipole moment can be reversed when a proper electric field is applied; the middle PVC polymer is used for providing upper and lower layer direct current voltages, the film side connected to the positive power supply is contracted due to the change of the electronic dipole moment, the original deformation is maintained by the negative electrode, so that the whole form of the film is changed, the regular deformation of the electroactive polymer film 9 can be realized through step pulse direct current signals, and the blood is provided for the heart by cooperatively extruding the blood vessel wall. The heartbeat frequency of the adult is within 60-100 beats per minute, the heartbeat frequency is generally within the range of 70-90, if the frequency is about 1.3Hz calculated by 80 beats per minute, namely, the direct current needs to be maintained for 0.76s, and the blood vessel is squeezed by the deformation generated by the electroactive polymer film 9, so that the blood supply effect is achieved. The value of the holding capacitance 11 of the electroactive polymer film 9 changes when deformed, and the holding capacitance 11 can be equivalently calculated according to the following formula:
wherein S is the surface area of the electrode of the electroactive polymer film 9, epsilon0Is a vacuum dielectric constant of ∈rD is the thickness of the electroactive polymer film 9, which is the relative dielectric constant.
The S-shaped electroactive polymer film 9 is designed to assist the blood supply structure and is tightly arranged on the periphery of the blood vessel wall, so that the contact area between the S-shaped electroactive polymer film 9 and the blood vessel is smaller and is easier to control; due to the existence of the plurality of contacts, the stress of the blood vessel is more uniform when the blood vessel works at the same voltage level, the control of the blood flow is more flexible and convenient, and the blood vessel is easier to mount and dismount; the aluminum metal foil is adopted to replace the traditional lead, and an insulating film is additionally arranged, so that the safety protection effect is achieved. After voltage is applied, the S-shaped electroactive polymer film 9 deforms and contracts inwards, so that the periphery of the blood vessel wall is extruded by external force with the same size, the blood flow is controlled, the power supply voltage of the electronic electroactive polymer film 9 is generally 500V-5kV, and auxiliary devices with different voltage levels can be designed according to different blood supply requirements.
The S-shaped electroactive polymer film 9 power supply needs to be arranged inside a human body, the main power supply requirement is a high-voltage direct-current power supply, the power supply voltage is 500V-5kV pulse direct current, and the power is 5W-10W. Due to the special power supply requirement of the electroactive polymer film 9, the invention adopts a 3-coil type wireless power supply model, namely a multi-stage jump type wireless boosting model, which mainly comprises a transmitting coil 6, a relay coil 5 and a receiving coil 7, wherein an energy receiving side adopts an induction type energy transmission mode, namely a resonance compensation capacitor is not arranged, and the transmitting coil 6 and the relay coil 5 adopt a resonance type energy transmission mode and are provided with a resonance compensation capacitor 10. Wherein the size of the transmitting coil 6 is 8cm-12cm, the relay coil 5 and the transmitting coil 6 are in the same plane, the relay coil 5 is nested outside the energy transmitting coil 6 and plays a role in enhancing the resonant magnetic field, wherein the size of the relay coil 5 is 10-14 cm. The invention relates to a battery, which comprises a lithium battery, a nickel-hydrogen battery and the like, wherein the voltage is 24V-36V, and an external replaceable power supply is utilized, so that the problem of energy endurance can be well solved. The direct current power supply is converted into a high-frequency alternating current power supply, the working frequency of the system is controlled through an LC series voltage type resonance circuit, electric energy is converted into high-frequency electromagnetic energy, the relay coil 5 is excited, the relay coil 5 resonates, the main energy of the relay coil 5 is reactive energy, a transmission magnetic field is enhanced, the current value of the transmission magnetic field is 3-15 times of the resonance current, and therefore the magnetic field intensity of the system is improved, and the transmission distance and the transmission efficiency of the system are increased. The receiving coil 7 is a multi-turn inductance coil, the inductance value of the receiving coil is 1mH-100mH, magnetic energy is converted into electric energy through inductive coupling, under the condition of a fixed receiving sectional area, the magnetic flux of a system is constant, but the flux linkage of the system is related to the number of turns, and the output induced electromotive force is a multiple of the number of turns n. The magnetic field intensity is increased through the relay coil 5, and the magnetic energy is converted into electric energy by utilizing an inductive coupling structure of the receiving coil 7, wherein the receiving side belongs to a multi-turn large-inductance small-size coil, namely the same as that of a traditional transformer.Wherein U is1To relay the coil voltage, U2For receiving the coil 7 voltage, n1For the relay coil 5 turns, and n2Receiving the number of turns of coil 7. A first-stage maintaining capacitor 11 is added on the load side to ensure that the system is in a stable trapezoidal wave in the boosting process.
The wirelessly powered S-shaped auxiliary blood supply device is not limited to the specific structure described in the above embodiments, and may be a reasonable combination of the features described in the above embodiments.
Claims (6)
1. An S-shaped auxiliary blood supply device with wireless power supply is characterized by comprising an external battery (1), a bus capacitor (2), a main controller (3), an inverter (4), a relay coil (5), a transmitting coil (6), a receiving coil (7), a high-voltage rectifying and filtering circuit (8), an electroactive polymer film (9), two resonance compensation capacitors (10) and a maintaining capacitor (11);
the external battery (1) is connected with the inverter (4), and a bus capacitor (2) is arranged on a circuit connecting the external battery (1) and the inverter (4); the main controller (3) is connected with the inverter (4);
the inverter (4) is connected with the transmitting coil (6), a resonance compensation capacitor (10) is connected in series between the inverter (4) and the transmitting coil (6), the relay coil (5) is embedded outside the transmitting coil (6), and the resonance compensation capacitor (10) is further arranged on the relay coil (5); the transmitting coil (6) and the receiving coil (7) achieve resonance in a magnetic coupling mode, the receiving coil (7) is connected with a high-voltage rectifying and filtering circuit (8), the high-voltage rectifying and filtering circuit (8) is connected with an electroactive polymer film (9), a maintaining capacitor (11) is arranged on a circuit formed by connecting the high-voltage rectifying and filtering circuit (8) and the electroactive polymer film (9), and the electroactive polymer film (9) is S-shaped.
2. The wirelessly powered S-shaped auxiliary blood supply device according to claim 1, wherein the electroactive polymer film (9) is divided into three layers, the upper layer and the lower layer are made of ferroelectric polymer, and the middle layer is made of PVC polymer.
3. A wirelessly powered S-shaped auxiliary blood supply device according to claim 1, characterised in that the voltage of the electroactive polymer film (9) is 500V-5kV pulsed dc with a power of 5W-10W.
4. A wirelessly powered S-shaped auxiliary feeding device according to claim 1, characterized in that the dimensions of the relay coil (5) are 8-12 cm.
5. A wirelessly powered S-shaped auxiliary blood supply device according to claim 1, characterised in that the size of the transmitting coil (6) is 10-14 cm.
6. The wireless-powered S-shaped auxiliary blood supply device according to claim 1, wherein the external battery (1) is a lithium battery or a nickel-hydrogen battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810540189.1A CN110624146A (en) | 2018-05-30 | 2018-05-30 | Wireless power supply' S supplementary blood supply unit of S-shaped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810540189.1A CN110624146A (en) | 2018-05-30 | 2018-05-30 | Wireless power supply' S supplementary blood supply unit of S-shaped |
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| CN110624146A true CN110624146A (en) | 2019-12-31 |
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| CN201810540189.1A Pending CN110624146A (en) | 2018-05-30 | 2018-05-30 | Wireless power supply' S supplementary blood supply unit of S-shaped |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004037152A2 (en) * | 2002-10-07 | 2004-05-06 | Pavad Medical, Inc. | Vascular assist device and methods |
| CN1524000A (en) * | 2000-09-23 | 2004-08-25 | �ڶ��ƶ�������ҽ���豸����˾ | Blood circulation assistance device |
| CN1721013A (en) * | 2004-06-24 | 2006-01-18 | 伊西康内外科公司 | Medical implant having closed loop transcutaneous energy transfer (TET) power transfer regulation circuity |
| CN104412505A (en) * | 2012-08-03 | 2015-03-11 | 精工爱普生株式会社 | Actuator |
| CN106253498A (en) * | 2016-08-23 | 2016-12-21 | 桐城信邦电子有限公司 | A kind of implanted adaptive wireless electric energy transmission system |
-
2018
- 2018-05-30 CN CN201810540189.1A patent/CN110624146A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524000A (en) * | 2000-09-23 | 2004-08-25 | �ڶ��ƶ�������ҽ���豸����˾ | Blood circulation assistance device |
| WO2004037152A2 (en) * | 2002-10-07 | 2004-05-06 | Pavad Medical, Inc. | Vascular assist device and methods |
| CN1721013A (en) * | 2004-06-24 | 2006-01-18 | 伊西康内外科公司 | Medical implant having closed loop transcutaneous energy transfer (TET) power transfer regulation circuity |
| CN104412505A (en) * | 2012-08-03 | 2015-03-11 | 精工爱普生株式会社 | Actuator |
| CN106253498A (en) * | 2016-08-23 | 2016-12-21 | 桐城信邦电子有限公司 | A kind of implanted adaptive wireless electric energy transmission system |
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Application publication date: 20191231 |
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| RJ01 | Rejection of invention patent application after publication |