CN113117240A - Implanted bioenergy power supply system - Google Patents
Implanted bioenergy power supply system Download PDFInfo
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- CN113117240A CN113117240A CN202110451503.0A CN202110451503A CN113117240A CN 113117240 A CN113117240 A CN 113117240A CN 202110451503 A CN202110451503 A CN 202110451503A CN 113117240 A CN113117240 A CN 113117240A
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- heart
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- power supply
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- 210000003516 pericardium Anatomy 0.000 claims abstract description 17
- 238000004146 energy storage Methods 0.000 claims abstract description 12
- 230000008602 contraction Effects 0.000 claims abstract description 10
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000002513 implantation Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920000249 biocompatible polymer Polymers 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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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
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/378—Electrical supply
- A61N1/3785—Electrical supply generated by biological activity or substance, e.g. body movement
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention relates to the technical field of a biological energy power supply system, and provides an implanted biological energy power supply system which is implanted between the heart and the pericardium of a user, wherein a piezoelectric unit of an electric energy generating part is attached to the surface of the heart of the user, can convert mechanical energy generated by the contraction and the relaxation of the heart into electric energy and transmit the electric energy in the form of alternating current; the balloon unit is arranged between the piezoelectric unit and the pericardium, and the volume can be adjusted, so that the mechanical energy generated by the heart is transmitted to the piezoelectric unit as much as possible; the rectifying unit of the electric energy storage part is electrically connected with the piezoelectric unit, the alternating current transmitted by the piezoelectric unit is converted into direct current, and the storage unit is electrically connected with the rectifying unit and can store the electric energy of the direct current output by the rectifying unit. Therefore, the invention converts the mechanical energy generated by the heart into the electric energy and stores the electric energy for the implanted electronic equipment to use, thereby avoiding the operation caused by the exhaustion of the battery of the implanted electronic equipment and reducing the pain and the economic burden of the patient.
Description
Technical Field
The invention relates to the technical field of in-vivo bioenergy power supply, in particular to an implantable bioenergy power supply system.
Background
An implantable medical device is an electronic device that can be implanted into the human body for monitoring or therapy. With the development of electronic technology, implantable medical devices are beginning to be widely used in the field of clinical medicine. The implantable medical device can greatly relieve the symptoms of patients and improve the quality of life, and has significant application value. However, as the development direction of emerging medical devices, implantable medical devices still face many problems to be overcome, and the power supply problem is more important in these problems. Due to the volume limitation of the implanted medical device, only the micro lithium battery can be used for supplying power, the service life of the implanted medical device is limited, and a patient needs to replace equipment through multiple operations, so that great physical pain and heavy economic burden are caused to the patient.
Disclosure of Invention
The present invention is made to solve the above problems, and an object of the present invention is to provide an implantable bio-energy power supply system.
The invention provides an implantable bioenergy power supply system for implantation between the heart and the pericardium of a user having features comprising: electric energy generation portion and electric energy storage portion, wherein, electric energy generation portion includes: the piezoelectric unit is attached to the surface of the heart of a user and used for generating current under the action of the heart; the sacculus unit sets up between piezoelectric unit and pericardium for adjust the distance between piezoelectric unit and the heart, electric energy storage portion includes: the rectifying unit is electrically connected with the piezoelectric unit and is used for converting alternating current generated by the piezoelectric unit into direct current; and the storage unit is electrically connected with the rectifying unit and is used for storing the electric energy of the direct current output by the rectifying unit.
In the implanted bioenergy power supply system provided by the invention, the implanted bioenergy power supply system further has the following characteristics: the sacculus unit comprises a sacculus and a conveying pipe, the sacculus is provided with a cavity and is stuffed between the piezoelectric unit and the pericardium, and one end of the conveying pipe is communicated with the cavity.
In the implanted bioenergy power supply system provided by the invention, the implanted bioenergy power supply system further has the following characteristics: the other end of the delivery pipe is communicated with the injector.
In the implanted bioenergy power supply system provided by the invention, the implanted bioenergy power supply system further has the following characteristics: the piezoelectric unit includes: the piezoelectric layer is provided with a first electrode plate, a piezoelectric film and a second electrode plate which are sequentially attached together, and under the action of contraction and relaxation of the heart, the piezoelectric film deforms to generate a potential difference between the first electrode plate and the second electrode plate, so that mechanical energy generated by the heart is converted into electric energy; and the packaging layer is made of flexible insulating material, wraps the piezoelectric layer and is used for preventing the electric leakage of the piezoelectric layer.
In the implanted bioenergy power supply system provided by the invention, the implanted bioenergy power supply system further has the following characteristics: wherein, the rectifying unit is a rectifier.
In the implanted bioenergy power supply system provided by the invention, the implanted bioenergy power supply system further has the following characteristics: wherein, the storage unit is a capacitor.
In the implanted bioenergy power supply system provided by the invention, the implanted bioenergy power supply system further has the following characteristics: the electric energy storage part also comprises a control unit which is electrically connected with the storage unit and used for controlling the discharge frequency of the storage unit.
Action and Effect of the invention
According to the implanted bioenergy power supply system provided by the invention, because the implanted bioenergy power supply system is implanted between the heart and the pericardium of a user, the piezoelectric unit of the electric energy generating part is attached to the surface of the heart of the user, so that the mechanical energy generated by the contraction and the relaxation of the heart can be converted into electric energy, and the electric energy is transmitted in the form of alternating current; the balloon unit is arranged between the piezoelectric unit and the pericardium, the volume of the balloon unit can be adjusted through inflation and deflation, the distance between the piezoelectric unit and the heart can be changed, and the mechanical energy generated by the heart in the contraction and relaxation process is transmitted to the piezoelectric unit as much as possible, so that the conversion rate from the mechanical energy to the electric energy is improved; the rectifying unit of the electric energy storage part is electrically connected with the piezoelectric unit and can convert alternating current transmitted by the piezoelectric unit into direct current, and the storage unit is electrically connected with the rectifying unit and can store the electric energy of the direct current output by the rectifying unit.
Therefore, the implanted bioenergy power supply system can convert the mechanical energy generated by the heart into electric energy and store the electric energy for the implanted electric appliance, thereby avoiding the replacement of the power supply of the implanted electric appliance for a plurality of times of operations and avoiding unnecessary pain and even secondary damage to the patient.
Drawings
Fig. 1 is a schematic structural diagram of an implantable bio-energy power supply system in an embodiment of the invention;
fig. 2 is a schematic cross-sectional view of an implantable bio-energy power supply system in an embodiment of the invention;
fig. 3 is a schematic illustration of the installation of an implantable bio-energy power supply system in an embodiment of the invention;
fig. 4 is an enlarged view of a portion a of fig. 3.
Description of the figure numbering: the implantable biological energy power supply system 100, the electric energy generation part 10, the piezoelectric unit 11, the piezoelectric layer 111, the first electrode sheet 1111, the piezoelectric film 1112, the second electrode sheet 1113, the packaging layer 112, the balloon unit 12, the balloon 121, the cavity 1211, the delivery pipe 122, the electric energy storage part 20, the rectification unit 21, the storage unit 22, the control unit 23, the heart 201 and the pericardium 202.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described with reference to the attached drawings.
< example >
This example details the specific structure and manner of use of an implantable bioenergy power supply system.
Fig. 1 is a schematic structural diagram of the implantable bioenergy power supply system in the embodiment.
As shown in fig. 1, the implantable bio-energy power supply system 100 is configured to be implanted between a heart 201 and a pericardium 202 of a user, and includes an electrical energy generation portion 10 and an electrical energy storage portion 20.
Fig. 2 is a schematic cross-sectional view of the implantable bioenergy power supply system according to the embodiment.
As shown in fig. 2, the electric energy generating unit 10 includes a piezoelectric unit 11 and a balloon unit 12.
The piezoelectric unit 11 includes a piezoelectric layer 111 and an encapsulation layer 112. The piezoelectric layer 111 has a first electrode piece 1111, a piezoelectric film 1112, and a second electrode piece 1113 bonded together in this order.
When the piezoelectric film 1112 is deformed, a potential difference is generated between the first pole piece 1111 and the second pole piece 1113 attached to the upper and lower surfaces thereof, respectively, thereby generating an alternating current.
In this embodiment, the piezoelectric film 1112 is any one of a piezoelectric polymer film, a composite piezoelectric film, a piezoelectric crystal, or a piezoelectric ceramic sheet material.
The encapsulation layer 112 is a flexible insulating material, and wraps the outer surface of the piezoelectric layer 111 to prevent the piezoelectric layer 111 from leaking electricity. In this embodiment, the encapsulation layer 112 is made of polymer material such as polytetrafluoroethylene or parylene.
The piezoelectric unit 11 is attached to the surface of the heart 201 of the user, the packaging layer 112 is in contact with the surface of the heart, and the piezoelectric film 1112 deforms along with the contraction and the relaxation of the heart 201, so that the piezoelectric unit 11 generates alternating current, and the mechanical energy generated by the heart 201 is converted into electric energy.
The balloon unit 12 includes a balloon 121 and a delivery tube 122.
The balloon 121 has a cavity 1211, and the balloon 121 is packed between the piezoelectric unit 11 and the pericardium 202.
One end of the delivery tube 122 is communicated with the cavity 1211, and the other end is communicated with a syringe (not shown in the figure), during the implantation operation, an operator uses the syringe to inflate or deflate the cavity 1211 through the delivery tube 122, and adjusts the size of the balloon 121 to adjust the distance between the piezoelectric unit 11 and the heart 201, so that the mechanical energy generated by the heart 201 due to contraction and relaxation is transmitted to the piezoelectric film 1112 as much as possible, and the conversion rate of the mechanical energy of the piezoelectric unit 11 to the electric energy is higher. The gas filled into the balloon 121 by the syringe may be any one of nitrogen, helium or carbon dioxide.
The balloon 121 and the delivery tube 122 are both made of biocompatible polymer materials.
The electric energy storage section 20 includes a rectifying unit 21, a storage unit 22, and a control unit 23.
The rectifying unit 21 is a rectifier. The rectifying unit 21 is attached to the balloon 121, electrically connected to the first electrode plate 1111 and the second electrode plate 1113 of the piezoelectric unit 11, and configured to convert the ac power output from the piezoelectric unit 11 into dc power and output the dc power.
In this embodiment, the rectifying unit 21 outputs a direct current with a voltage of 1V to 10V and a current of 1mA to 10mA every time the heart 201 of the user completes systole and diastole.
The storage unit 22 is a capacitor. The storage unit 22 is attached to the balloon 121, electrically connected to the rectifying unit 21, and can store electric energy of the direct current output from the rectifying unit 21. Meanwhile, the storage unit 22 is also electrically connected to an implanted electrical appliance (such as a cardiac pacemaker, an implanted drug delivery device, an implanted hearing assistance device, etc.) in the body of the user, and is capable of supplying power to the implanted electrical appliance.
The control unit 23 is a control chip, is mounted on the balloon 121, is electrically connected to the storage unit 22, and can control the current output frequency of the storage unit 22.
Fig. 3 is a schematic diagram of the installation of the implanted bioenergy power supply system in the embodiment, and fig. 4 is an enlarged view of a part a of fig. 3.
As shown in fig. 3 and 4, the operation process of the implantable bio-energy power supply system 100 provided by the present embodiment is as follows:
after the implantable bioenergy power supply system 100 is implanted between the heart 201 and the pericardium 202 of the user, when the heart 201 relaxes, the piezoelectric unit 11 located between the balloon 121 and the heart 201 is pressed, and the piezoelectric film 1112 of the piezoelectric unit 11 is pressed to generate deformation. When the heart 201 contracts, the piezoelectric unit 11 located between the balloon 121 and the heart 201 is released, and the piezoelectric film 1112 of the piezoelectric unit 11 is restored from the deformation. The piezoelectric film 1112 deforms and recovers, so that a potential difference is generated between the first electrode plate 1111 and the second electrode plate 1113, and the piezoelectric unit 11 outputs alternating current to convert mechanical energy generated by the heart 201 due to contraction and relaxation into electric energy. The rectifying unit 21 converts the alternating current output from the piezoelectric unit 11 into direct current, and outputs the direct current to the storage unit 22. The control unit 23 controls the storage unit 22 to output corresponding current according to the rated power of the implanted electrical appliance connected to the storage unit 22, so as to continuously supply power to the implanted electrical appliance.
Effects and effects of the embodiments
According to the implanted bioenergy power supply system provided by the embodiment, because the implanted bioenergy power supply system is implanted between the heart and the pericardium of the user, the piezoelectric unit of the electric energy generating part is attached to the surface of the heart of the user, and can convert the mechanical energy generated by the contraction and the relaxation of the heart into electric energy and transmit the electric energy in the form of alternating current; the balloon unit is arranged between the piezoelectric unit and the pericardium, the volume of the balloon unit can be adjusted through inflation and deflation, the distance between the piezoelectric unit and the heart can be changed, and the mechanical energy generated by the heart in the contraction and relaxation process is transmitted to the piezoelectric unit as much as possible, so that the conversion rate from the mechanical energy to the electric energy is improved; the rectifying unit of the electric energy storage part is electrically connected with the piezoelectric unit and can convert alternating current transmitted by the piezoelectric unit into direct current, and the storage unit is electrically connected with the rectifying unit and can store the electric energy of the direct current output by the rectifying unit.
Therefore, the implanted bioenergy power supply system can convert the mechanical energy generated by the heart into electric energy and store the electric energy for the implanted electric appliance, thereby avoiding the replacement of the power supply of the implanted electric appliance for a plurality of times of operations and avoiding unnecessary pain and even secondary damage to the patient.
In addition, one end of the conveying pipe of the balloon unit is communicated with the cavity of the balloon, and the other end of the conveying pipe of the balloon unit is communicated with the injector, so that when an operator fills the implanted bioenergy power supply system between the heart and the pericardium, the operator can directly use the injector to inflate or deflate the cavity of the balloon to adjust the volume of the balloon, and further the distance between the piezoelectric unit and the heart is changed.
In addition, the packaging layer is made of flexible insulating materials, electric leakage of the piezoelectric layer can be prevented, and damage to a user is avoided.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
In the invention, the operator can adjust the volume of the balloon by inflating or deflating the cavity of the balloon through the injector in the implantation operation, and in practical application, the operator can also adjust the volume of the balloon by injecting 0.9% sodium chloride solution into the cavity of the balloon through the injector.
Claims (7)
1. An implantable bio-energy powered system for implantation between a heart and a pericardium of a user, comprising:
an electric energy generation unit and an electric energy storage unit,
wherein the electric energy generation section includes:
the piezoelectric unit is attached to the surface of the heart of the user and used for generating current under the action of the heart;
a balloon unit disposed between the piezoelectric unit and the pericardium for adjusting a distance between the piezoelectric unit and the heart,
the electric energy storage portion includes:
the rectifying unit is electrically connected with the piezoelectric unit and used for converting alternating current generated by the piezoelectric unit into direct current;
and the storage unit is electrically connected with the rectifying unit and is used for storing the electric energy of the direct current output by the rectifying unit.
2. The implantable bio-energy power supply system according to claim 1, wherein:
wherein the balloon unit comprises a balloon and a delivery pipe,
the balloon is provided with a cavity stuffed between the piezoelectric unit and the pericardium,
one end of the conveying pipe is communicated with the cavity.
3. The implantable bio-energy power supply system according to claim 2, wherein:
wherein, the other end of the conveying pipe is communicated with the injector.
4. The implantable bio-energy power supply system according to claim 1, wherein:
wherein the piezoelectric unit includes:
the piezoelectric layer is provided with a first electrode plate, a piezoelectric film and a second electrode plate which are sequentially attached together, and under the action of contraction and relaxation of the heart, the piezoelectric film deforms to generate a potential difference between the first electrode plate and the second electrode plate, so that mechanical energy generated by the heart is converted into electric energy;
and the packaging layer is made of flexible insulating material, wraps the piezoelectric layer and is used for preventing the piezoelectric layer from leaking electricity.
5. The implantable bio-energy power supply system according to claim 1, wherein:
wherein, the rectifying unit is a rectifier.
6. The implantable bio-energy power supply system according to claim 1, wherein:
wherein the storage unit is a capacitor.
7. The implantable bio-energy power supply system according to claim 1, wherein:
the electric energy storage part further comprises a control unit, and the control unit is electrically connected with the storage unit and used for controlling the discharge frequency of the storage unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110451503.0A CN113117240A (en) | 2021-04-26 | 2021-04-26 | Implanted bioenergy power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110451503.0A CN113117240A (en) | 2021-04-26 | 2021-04-26 | Implanted bioenergy power supply system |
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| Publication Number | Publication Date |
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| CN113117240A true CN113117240A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110451503.0A Pending CN113117240A (en) | 2021-04-26 | 2021-04-26 | Implanted bioenergy power supply system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070232849A1 (en) * | 2006-04-04 | 2007-10-04 | Michael Gertner | Pericardial inserts |
| CN201768049U (en) * | 2010-03-17 | 2011-03-23 | 孟坚 | Medical sealed sacculus and transporting device thereof |
| CN102665528A (en) * | 2009-09-22 | 2012-09-12 | 奥林巴斯株式会社 | Endoscope |
| CN104740774A (en) * | 2013-12-26 | 2015-07-01 | 中国人民解放军第二军医大学 | Implantable self-powered cardioverter defibrillator |
| CN107261302A (en) * | 2017-05-04 | 2017-10-20 | 杭州启明医疗器械有限公司 | Foley's tube and its aerating device for expanding aorta petal |
| CN110011565A (en) * | 2019-04-02 | 2019-07-12 | 上海交通大学 | A kind of energy collecting device and implanted self energizing medical electronics device |
| CN112472164A (en) * | 2020-10-30 | 2021-03-12 | 中国人民解放军陆军军医大学第一附属医院 | Drainage catheter |
-
2021
- 2021-04-26 CN CN202110451503.0A patent/CN113117240A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070232849A1 (en) * | 2006-04-04 | 2007-10-04 | Michael Gertner | Pericardial inserts |
| CN102665528A (en) * | 2009-09-22 | 2012-09-12 | 奥林巴斯株式会社 | Endoscope |
| CN201768049U (en) * | 2010-03-17 | 2011-03-23 | 孟坚 | Medical sealed sacculus and transporting device thereof |
| CN104740774A (en) * | 2013-12-26 | 2015-07-01 | 中国人民解放军第二军医大学 | Implantable self-powered cardioverter defibrillator |
| CN107261302A (en) * | 2017-05-04 | 2017-10-20 | 杭州启明医疗器械有限公司 | Foley's tube and its aerating device for expanding aorta petal |
| CN110011565A (en) * | 2019-04-02 | 2019-07-12 | 上海交通大学 | A kind of energy collecting device and implanted self energizing medical electronics device |
| CN112472164A (en) * | 2020-10-30 | 2021-03-12 | 中国人民解放军陆军军医大学第一附属医院 | Drainage catheter |
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