A micro power generation device based on blood vessel pulsation and implantable micro device

Abstract

The application discloses the field of interventional medicine, and particularly relates to a micro power generation device based on blood vessel pulsation and an implantable micro device, which comprises a semiconductor slide, a super-slippery conductive sheet and a power capturing connecting piece; the power capturing connecting piece is connected with the super-slippery conductive sheet and an energized blood vessel, and is used for making the super-slippery conductive sheet relatively slide on the semiconductor slide by using the pulsation of the energized blood vessel; the super-slippery conductive sheet and the semiconductor slide are in super-slippery contact and output an electric signal. The application is based on the principle of super-slippery Schottky power generation, that is, the relative sliding of the super-slippery conductive sheet and the flat semiconductor material can generate electric current. Through the power capturing connecting piece, the mechanical energy in the contraction and relaxation process of the blood vessel is efficiently converted into electric energy, so as to supply power for the implantable micro device or serve as a self-powered sensor. In the case that the human body is basically not damaged, the application can obtain a long service life and a sustainable power supply method for the implantable micro device in the human body.

Description

Technical Field

[0001] This invention relates to the field of interventional medicine, and in particular to a micro-power generation device based on vascular pulsation and an implantable micro-device. Background Technology

[0002] With the development of technology, implantable micro-devices will become extremely important in the next generation of interventional medicine. For example, for the measurement of blood glucose and blood pressure, the current traditional external measurement methods are inaccurate due to their complexity and discontinuity, and are also inconvenient to use. Although wearable devices can achieve continuous measurement, it is difficult to achieve very accurate measurement outside the body. Therefore, implantable micro-devices have become a new choice for future development.

[0003] While implantable micro-devices can directly, accurately, and continuously measure blood sugar and blood pressure, solving the power supply problem for these implantable devices has become a challenge. Traditional chemical batteries have a capacity that decreases with the cube of the scale and have a limited lifespan at small scales, thus requiring periodic surgical replacement. Wireless charging, on the other hand, is larger in size and generates more heat, which could damage the human body.

[0004] Therefore, finding a way to power implantable microdevices that has a long lifespan, can provide continuous power, and puts less strain on the human body has become an urgent problem to be solved in the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a micro-power generation device and implantable micro-device based on vascular pulsation, so as to solve the problems of short energy supply time and high burden on the human body of implantable devices in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention provides a micro power generation device based on vascular pulsation, including a semiconductor slide, a super-lubricating conductive sheet and an energy harvesting connector;

[0007] The energy-harvesting connector is connected to the super-slippery conductive sheet and the energized blood vessel, and is used to make the super-slippery conductive sheet slide relative to the semiconductor slide by utilizing the pulsation of the energized blood vessel;

[0008] The super-slippery conductive sheet makes super-slippery contact with the semiconductor slide and outputs an electrical signal.

[0009] Optionally, in the aforementioned micro-power generation device based on vascular pulsation, the super-slippery conductive sheet includes a conductive island cover and a super-slippery sheet;

[0010] The first surface of the super-slippery plate makes super-slip contact with the semiconductor slide, and the conductive island cover and the super-slippery plate form an ohmic contact.

[0011] Optionally, the aforementioned micro-power generation device based on vascular pulsation also includes a conductive assembly;

[0012] The micro-power generation device includes multiple of the aforementioned super-slippery conductive sheets;

[0013] Multiple super-slippery conductive sheets are connected in parallel through the conductive assembly and slide relative to each other on the semiconductor track under the drive of the energy-harvesting connector.

[0014] Optionally, in the aforementioned micro-power generation device based on vascular pulsation, the super-slippery conductive sheet is a semiconductor slip sheet with a single-crystal two-dimensional interface;

[0015] The single-crystal two-dimensional interface includes at least one of graphite interface, graphene interface, molybdenum disulfide interface, tungsten diselenide interface, tungsten disulfide interface, and black phosphorus interface.

[0016] Optionally, in the aforementioned micro-power generation device based on vascular pulsation, the energy-harvesting connector includes an elastic transmission element;

[0017] The direction in which the elastic transmission element receives the force of the pulsating blood vessel is perpendicular to the sliding direction of the super-slippery conductive sheet on the semiconductor track.

[0018] Optionally, in the aforementioned micro-power generation device based on vascular pulsation, the energy harvesting connector includes a motion assembly;

[0019] Each of the motion groups includes two elastic transmission elements; the elastic transmission elements are arc-shaped structures, the arc apexes of the two elastic transmission elements within the same motion group are opposite to each other, and the movement directions of the super-slippery conductive sheets corresponding to the two elastic transmission elements are opposite.

[0020] Optionally, in the aforementioned vascular pulsation-based micro-power generation device, the energy harvesting connector includes a contact base;

[0021] The contact base covers the outer wall of the energized blood vessel, and the other structures of the energy-harvesting connector transmit the pulsating force of the energized blood vessel to the super-slippery conductive sheet through the contact base.

[0022] Optionally, in the aforementioned vascular pulsation-based micro-power generation device, the energy-harvesting connector includes at least two contact bases.

[0023] Optionally, the aforementioned micro-power generation device based on vascular pulsation also includes a pre-compression frame;

[0024] The micro-power generation device is fixedly connected to the energy-generating blood vessel via the pre-pressure frame, and the pre-pressure frame applies pre-pressure to the energy-generating blood vessel via the energy-harvesting connector.

[0025] Optionally, in the aforementioned micro-power generation device based on vascular pulsation, a pre-pressure airbag is provided within the pre-pressure frame, and the pre-pressure airbag applies pre-pressure to the energized blood vessel.

[0026] Optionally, in the aforementioned micro-power generation device based on vascular pulsation, the micro-power generation device includes two semiconductor slides, and the two semiconductor slides respectively correspond to their respective super-slippery conductive sheets and energy-harvesting connectors;

[0027] The two semiconductor slides are arranged opposite each other.

[0028] Optionally, in the aforementioned micro-power generation device based on vascular pulsation, when the micro-power generation device includes the pre-compression frame, the pre-compression frame is an elastic connecting strip;

[0029] The elastic connecting strip is connected to the two semiconductor slides at both ends, and the elastic connecting strip is a pre-stretched connecting strip.

[0030] An implantable microdevice, the implantable microdevice comprising a micro-power generation device based on vascular pulsation as described in any of the above.

[0031] The present invention provides a micro power generation device based on vascular pulsation, comprising a semiconductor slide, a super-slippery conductive sheet, and an energy-harvesting connector; the energy-harvesting connector is connected to the super-slippery conductive sheet and the energized blood vessel, and is used to make the super-slippery conductive sheet slide relative to the semiconductor slide by utilizing the pulsation of the energized blood vessel; the super-slippery conductive sheet and the semiconductor slide have super-slippery contact and output an electrical signal.

[0032] This invention is based on the principle that electric current can be generated by the relative sliding of conductive super-lubricating materials and flat semiconductor materials (such as Schottky power generation). Through the energy-harvesting connector, the mechanical energy generated during the contraction and relaxation of blood vessels is efficiently converted into electrical energy to power implantable microdevices or to function as a self-powered sensor. This provides a long-lasting and sustainable power supply for implantable microdevices within the human body with minimal harm to the human body. This invention also provides an implantable microdevice with the aforementioned beneficial effects. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1A schematic diagram of a specific embodiment of the micro-power generation device based on vascular pulsation provided by the present invention;

[0035] Figure 2 A schematic diagram of another specific embodiment of the micro-power generation device based on vascular pulsation provided by the present invention;

[0036] Figure 3 A schematic diagram of another specific embodiment of the micro-power generation device based on vascular pulsation provided by the present invention;

[0037] Figure 4 A schematic diagram of the structure of a specific embodiment of the micro power generation device based on vascular pulsation provided by the present invention and its connection to an external circuit.

[0038] Figure 5 This is a schematic diagram of the structure of a super-slippery conductive sheet, which is a specific embodiment of the micro-power generation device based on vascular pulsation provided by the present invention. Detailed Implementation

[0039] To enable those skilled in the art to better understand the present invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] The core of this invention is to provide a micro-power generation device based on vascular pulsation, and a schematic diagram of one specific embodiment is shown below. Figure 1 As shown, it includes a semiconductor slide rail 03, an ultra-slippery conductive sheet 021, and an energy-harvesting connector;

[0041] The energy-harvesting connector is connected to the super-slippery conductive sheet 021 and the energy-enhancing blood vessel, and is used to make the super-slippery conductive sheet 021 slide relative to the semiconductor slide rail 03 by utilizing the pulsation of the energy-enhancing blood vessel;

[0042] The super-slippery conductive sheet 021 makes super-slippery contact with the semiconductor slide rail 03 and outputs an electrical signal.

[0043] Currently, there is no device capable of directly harvesting energy from blood vessel wall vibrations. This invention achieves this because the high output density of the super-lubricated Schottky diode allows for miniaturization, while its extremely low friction enables it to generate electricity from slight disturbances in the blood vessel. Furthermore, its wear-free nature eliminates the need for replacement. Since blood vessels are distributed throughout the human body, it can be installed anywhere to power implantable devices used throughout the body.

[0044] The super-slippery conductive sheet 021 includes a conductive island cover 212 and a super-slippery sheet 211;

[0045] The first surface of the super-slippery plate 211 makes super-slippery contact with the semiconductor slide rail 03, and the conductive island cover 212 and the super-slippery plate 211 form an ohmic contact, such as Figure 5 As shown.

[0046] Wherein, the first surface is the surface in contact with the semiconductor slide rail 03. When the super-slippery conductive sheet 021 includes the conductive island cover 212 and the super-slippery sheet 211, it is the case that the super-slippery conductive sheet 021 and the semiconductor slide rail 03 generate Schottky power. Of course, the super-slippery conductive sheet 021 and the semiconductor slide rail 03 can also achieve sliding power generation in other ways, which is not limited in this invention.

[0047] In a preferred embodiment, the micro-power generation device further includes a conductive assembly 022;

[0048] The micro-power generation device includes multiple super-slippery conductive sheets 021;

[0049] Multiple super-slippery conductive sheets 021 are connected in parallel through the conductive assembly 022 and slide relative to each other on the semiconductor slide rail 03 under the drive of the energy-harvesting connector. Of course, super-slippery conductive sheets 021 connected by the same conductive assembly 022 can slide relative to each other on the same semiconductor slide rail 03 or on different semiconductor slide rails 03.

[0050] In other words, by using the energy-harvesting connector to drive multiple parallel super-slippery conductive sheets 021 at once, the current can be multiplied to meet greater power demands.

[0051] Specifically, the superslippery conductive sheet 021 is a conductor or semiconductor slip sheet with a single-crystal two-dimensional interface;

[0052] The single-crystal two-dimensional interface includes at least one of graphite interface, graphene interface, molybdenum disulfide interface, tungsten diselenide interface, tungsten disulfide interface, and black phosphorus interface. Of course, the single-crystal two-dimensional interface is the contact surface between the super-slippery conductive sheet 021 and the semiconductor slide rail 03.

[0053] Furthermore, the energy-harvesting connector includes an elastic transmission element 011;

[0054] The direction in which the elastic transmission member 011 receives the force of the pulsating blood vessel is perpendicular to the sliding direction of the super-slippery conductive sheet 021 on the semiconductor slide rail 03.

[0055] Please refer to Figure 1 , Figure 1When the inferior arc in the image is subjected to a downward force due to vascular pulsation, the force is transmitted through the arc-shaped elastic material to the super-slippery conductive sheet 021, causing the super-slippery conductive sheet to slide in the horizontal direction shown in the figure. Preferably, the elastic transmission element 011 is an elastic polymer; however, other materials may be selected depending on the actual situation.

[0056] The arc-shaped elastic transmission component 011 has a simple structure, good force transmission performance, and is easy to manufacture and has low cost. Of course, other shapes can also be selected to transmit the force of blood vessel pulsation.

[0057] Furthermore, the energy-harvesting connector includes a contact base 012;

[0058] The contact base 012 covers the outer wall of the energized blood vessel, and the other structures of the energy-harvesting connector transmit the pulsating force of the energized blood vessel to the super-slippery conductive sheet 021 through the contact base 012.

[0059] Furthermore, the energy-harvesting connector includes at least two contact bases 012, which wrap around the energy-enhancing blood vessel from opposite directions to ensure that the energy of the blood vessel pulsation is fully absorbed and converted.

[0060] The contact base 012 is the structure in which the energy-harvesting connector directly contacts the energy-generating blood vessel. The contact base 012 can conform to the energy-generating blood vessel, increasing the force-bearing area and allowing the pulsation of the energy-generating blood vessel to be better conducted to the super-slippery conductive sheet 021. In addition, the contact base 012 also acts as a protective sleeve, preventing sharp structures from other parts of the micro-power generation device from puncturing the blood vessel (e.g., Figure 1 The end point of the elastic transmission element 011 in the middle), Figure 1 The document does not directly identify the energy-harvesting connector, but instead identifies the components of the energy-harvesting connector, namely the contact base 012 and the elastic transmission member 011.

[0061] In addition, the super-smooth conductive sheet 021 is a graphite sheet. Graphite is relatively stable in the human body environment, does not react chemically with other components in the body, is relatively safe for the human body, and has excellent conductivity, reducing losses in the micro-power generation device.

[0062] As one specific implementation, it also includes a pre-compression frame 04;

[0063] The micro-power generation device is fixedly connected to the energy-generating blood vessel via the pre-pressure frame 04, and the pre-pressure frame 04 applies pre-pressure to the energy-generating blood vessel via the energy-harvesting connector.

[0064] Applying slight pressure to the energized blood vessel makes the energy-harvesting connector fit more tightly to the energized blood vessel, and a larger portion of the pulsation of the energized blood vessel is received by the energy-harvesting connector and conducted to the super-slippery conductive sheet 021.

[0065] Furthermore, a pre-compression airbag is provided inside the pre-compression frame 04, which applies pre-pressure to the energized blood vessel. The pre-compression airbag allows for a tighter fit between the pre-compression frame 04 and the energized blood vessel, enabling better conversion of the pulsating energy of the energized blood vessel. Simultaneously, the pre-compression airbag can also function as a sensor for blood pressure measurement.

[0066] It should be noted that the shape of the pre-compression frame 04 varies, such as... Figure 1 As shown, Figure 1 The pre-compression frame 04 is a gasket in a pre-compressed state. Its side, which does not contact the energy-harvesting connector, directly adheres to other tissues of the human body. Through its own pre-compression state and with the support of other tissues, it provides pre-pressure to the energy-enhancing blood vessels. Of course, the specific shape and installation method of the pre-compression frame 04 can be modified according to actual conditions.

[0067] We estimate the energy that blood vessels in different parts of the body can provide. Taking the brachial artery as an example, its outer diameter is 0.42-0.49 cm, the pressure is about 100 mmHg = 13332 Pa, the heart rate is 70, and only 1 mm in length is needed. With a 10% change in blood vessel size, there is 1 mW of power. For other blood vessels, from capillaries to the aorta, it can be installed, with a power range of 50 nW-6 mW. The friction of the super-lubricating structure technology is almost zero, which can be considered as having almost 100% conversion efficiency. Therefore, this power can also be considered as the output electrical power. This power is sufficient to drive many micro-sensor devices, such as the next-generation brain-computer interface chip.

[0068] The present invention provides a micro-power generation device based on vascular pulsation, comprising a semiconductor slide rail 03, a super-slippery conductive sheet 021, and an energy-harvesting connector. The energy-harvesting connector is connected to the super-slippery conductive sheet 021 and the energized blood vessel, and is used to utilize the pulsation of the energized blood vessel to cause the super-slippery conductive sheet 021 to slide relative to the semiconductor slide rail 03. The super-slippery conductive sheet 021 and the semiconductor slide rail 03 make super-slippery contact and output an electrical signal. The present invention is based on the principle that current can be generated by the relative sliding of conductive super-slippery materials and flat semiconductor materials (such as Schottky power generation). Through the energy-harvesting connector, the mechanical energy during the contraction and relaxation of blood vessels is efficiently converted into electrical energy to power implantable micro-devices or to act as a self-powered sensor. This provides a long-lasting and sustainable power supply for implantable micro-devices in the human body with minimal harm to the human body.

[0069] Based on the first specific embodiment, the energy-harvesting connector is further improved to obtain the second specific embodiment, the structural schematic diagram of which is shown below. Figure 2 As shown, it includes a semiconductor slide rail 03, an ultra-slippery conductive sheet 021, and an energy-harvesting connector;

[0070] The energy-harvesting connector is connected to the super-slippery conductive sheet 021 and the energy-enhancing blood vessel, and is used to make the super-slippery conductive sheet 021 slide relative to the semiconductor slide rail 03 by utilizing the pulsation of the energy-enhancing blood vessel;

[0071] The super-slippery conductive sheet 021 makes super-slippery contact with the semiconductor slide rail 03 and outputs an electrical signal;

[0072] The energy-harvesting connector includes a motion assembly;

[0073] Each of the motion groups includes two elastic transmission elements 011; the elastic transmission elements 011 are arc-shaped, the arc apexes of the two elastic transmission elements 011 in the same motion group are opposite, and the movement directions of the super-slippery conductive sheets 021 corresponding to the two elastic transmission elements 011 are opposite.

[0074] The difference between this specific embodiment and the above specific embodiment is that this specific embodiment is provided with multiple sets of elastic transmission members 011 with opposite arc apexes. The rest of the structure is the same as the above specific embodiment, and will not be described in detail here.

[0075] In this specific embodiment, the energy-harvesting connector includes a motion group composed of two elastic transmission members 011 with opposite arc apexes, each elastic transmission member 011 corresponding to one or a group of the super-slippery conductive sheets 021 (e.g., Figure 2 In this configuration, each elastic transmission element 011 corresponds to a set of super-slippery conductive sheets 021 connected in parallel with the conductive assemblies 022. When the energized vascular pulsation occurs, the two elastic transmission elements 011 transmit forces in opposite directions, forming a mutually supporting "V"-shaped structure, which improves mechanical stability and increases the utilization efficiency of the energized vascular pulsation, thereby increasing power generation. Of course, the energy-harvesting connector may include a single motion group or multiple motion groups.

[0076] Based on the second specific embodiment, the micro power generation device is further improved to obtain the second specific embodiment, the structural schematic diagram of which is shown below. Figure 3 As shown, it includes a semiconductor slide rail 03, an ultra-slippery conductive sheet 021, and an energy-harvesting connector;

[0077] The energy-harvesting connector is connected to the super-slippery conductive sheet 021 and the energy-enhancing blood vessel, and is used to make the super-slippery conductive sheet 021 slide relative to the semiconductor slide rail 03 by utilizing the pulsation of the energy-enhancing blood vessel;

[0078] The super-slippery conductive sheet 021 makes super-slippery contact with the semiconductor slide rail 03 and outputs an electrical signal;

[0079] The energy-harvesting connector includes a motion assembly;

[0080] Each of the motion groups includes two elastic transmission elements 011; the elastic transmission elements 011 are arc-shaped, the arc apexes of the two elastic transmission elements 011 in the same motion group are opposite, and the movement directions of the super-slippery conductive sheets 021 corresponding to the two elastic transmission elements 011 are opposite.

[0081] The micro power generation device includes two semiconductor slides 03, and the two semiconductor slides 03 respectively correspond to their respective super-slippery conductive sheets 021 and energy-harvesting connectors;

[0082] The two semiconductor slides 03 are arranged opposite each other.

[0083] The difference between this specific embodiment and the above specific embodiment is that two semiconductor slides 03 are provided in this specific embodiment. The rest of the structure is the same as the above specific embodiment, and will not be described in detail here.

[0084] Please refer to Figure 3 , Figure 3 Specifically, it consists of two opposing semiconductor slides 03 and matching energy-harvesting connectors and super-slippery conductive sheets 021. The semiconductor slides 03 are provided on both sides of the energy-enhancing blood vessel, which avoids the situation where the energy-enhancing blood vessel is subjected to long-term unidirectional pressure (from the energy-harvesting connector on one side) when it is provided on one side. Blood vessels subjected to long-term unilateral pressure are more fragile and more prone to rupture. By using the structure of the double-sided semiconductor slides 03 in this specific embodiment, the lateral pressure of the energy-enhancing blood vessel is balanced, the burden on the blood vessel is reduced, and the kinetic energy of the pulsating energy of the energy-enhancing blood vessel can be better captured, thereby improving the power generation efficiency.

[0085] When the micro power generation device includes the pre-compression frame 04, the pre-compression frame 04 is an elastic connecting strip;

[0086] The two ends of the elastic connecting strip are respectively connected to the two semiconductor slides 03, and the elastic connecting strip is a pre-stretched connecting strip.

[0087] The elastic connecting strip occupies little space and, while providing sufficient preload, can also balance the relative positions of the two semiconductor slides 03, which is beneficial for device miniaturization. Of course, other forms of preload frame 04 can also be used, and this invention is not limited thereto.

[0088] The following is an example of actual power generation. Assume the diameter D of the blood vessel ranges from 60 nm (capillaries) to 4 cm (ascending aorta); the average blood pressure is 100 mmHg = 13332 Pa; the average normal heart rate is 70; and the effective length of the micro-generator is 1 mm. Let the diameter of the blood vessel during dilation be D1, the diameter during systole be D2, the average blood pressure be P, and the heart rate be f.

[0089] The work done by a blood vessel of length L during vasoconstriction and vasodilation is:

[0090] W 血管对外 =P*L*(D1-D2)*f

[0091] Assuming the change in vessel diameter is 10%, then:

[0092] W 血管对外 =P*L*10%*D1*f

[0093] Substituting the numerical values ​​from the theoretical background, we can obtain the external power W of the blood vessel. 血管对外 The range is approximately 50nW-6mW.

[0094] In practice, since the energy provided by vascular pulsation is pulsed, assuming a sinusoidal signal, the peak value is the square root of two times the average value. The peak power output is 70nW-8.4mW; for example, 1mW of power can be obtained when applied to the brachial artery (outer diameter approximately 0.5cm).

[0095] in addition, Figure 4 A schematic diagram of the connection circuit between the micro power generation device and the electrical appliance (i.e., the implantable micro device, R in the figure) is provided. The semiconductor slide 03 and the super-slippery conductive sheet 021 are the two poles of the power supply, and electrodes can be set on the super-slippery conductive sheet 021 and the semiconductor slide 03 to facilitate circuit connection.

[0096] This invention also provides an implantable microdevice, comprising a micro-power generation device based on vascular pulsation as described above. The micro-power generation device based on vascular pulsation provided by this invention includes a semiconductor slide rail 03, a super-slippery conductive sheet 021, and an energy-harvesting connector. The energy-harvesting connector is connected to the super-slippery conductive sheet 021 and the energized blood vessel, and is used to utilize the pulsation of the energized blood vessel to cause the super-slippery conductive sheet 021 to slide relative to the semiconductor slide rail 03. The super-slippery conductive sheet 021 and the semiconductor slide rail 03 make super-slippery contact and output an electrical signal. This invention is based on the principle that current can be generated by the relative sliding of conductive super-slippery materials and flat semiconductor materials (such as Schottky power generation). Through the energy-harvesting connector, the mechanical energy during the contraction and relaxation of blood vessels is efficiently converted into electrical energy to power the implantable microdevice or to act as a self-powered sensor. This provides a long-lasting and sustainable power supply for implantable microdevices in the human body with minimal harm to the human body.

[0097] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0098] It should be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0099] The foregoing has provided a detailed description of the vascular pulsation-based micro-power generation device and implantable micro-device provided by this invention. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A micro-power generation device based on vascular pulsation, characterized in that, Includes semiconductor slides, super-slippery conductive sheets, and energy-harvesting connectors; The energy-harvesting connector is connected to the super-slippery conductive sheet and the energized blood vessel, and is used to make the super-slippery conductive sheet slide relative to the semiconductor slide by utilizing the pulsation of the energized blood vessel; The super-slippery conductive sheet makes super-slippery contact with the semiconductor slide and outputs an electrical signal; The energy-harvesting connector includes an elastic transmission component and a motion assembly; The direction in which the elastic transmission element receives the force of the pulsating blood vessel is perpendicular to the sliding direction of the super-slippery conductive sheet on the semiconductor slide. Each of the aforementioned motion groups includes two elastic transmission elements; each elastic transmission element corresponds to one or a group of the aforementioned super-slippery conductive sheets; The elastic transmission element has an arc-shaped structure. The arc apexes of the two elastic transmission elements in the same motion group are opposite to each other, and the movement directions of the super-slippery conductive sheets corresponding to the two elastic transmission elements are opposite. When the vascular pulsation occurs, the two elastic transmission elements transmit force in opposite directions, forming a mutually supporting "human" shaped structure.

2. The micro-power generation device based on vascular pulsation as described in claim 1, characterized in that, The super-slippery conductive sheet includes a conductive island cover and a super-slippery sheet; The first surface of the super-slippery plate makes super-slip contact with the semiconductor slide, and the conductive island cover and the super-slippery plate form an ohmic contact.

3. The micro-power generation device based on vascular pulsation as described in claim 1, characterized in that, It also includes conductive assemblies; The micro-power generation device includes multiple of the aforementioned super-slippery conductive sheets; Multiple super-slippery conductive sheets are connected in parallel through the conductive assembly and slide relative to each other on the semiconductor track under the drive of the energy-harvesting connector.

4. The micro-power generation device based on vascular pulsation as described in claim 1, characterized in that, The super-slippery conductive sheet is a semiconductor slip sheet with a single-crystal two-dimensional interface; The single-crystal two-dimensional interface includes at least one of graphite interface, graphene interface, molybdenum disulfide interface, tungsten diselenide interface, tungsten disulfide interface, and black phosphorus interface.

5. The micro-power generation device based on vascular pulsation as described in claim 1, characterized in that, The energy-harvesting connector includes a contact base; The contact base covers the outer wall of the energized blood vessel, and the energy-harvesting connector transmits the pulsating force of the energized blood vessel to the super-slippery conductive sheet through the contact base.

6. The micro-power generation device based on vascular pulsation as described in claim 5, characterized in that, The energy-harvesting connector includes at least two contact bases.

7. The micro-power generation device based on vascular pulsation as described in claim 1, characterized in that, It also includes a pre-compressed frame; The micro-power generation device is fixedly connected to the energy-generating blood vessel via the pre-pressure frame, and the pre-pressure frame applies pre-pressure to the energy-generating blood vessel via the energy-harvesting connector.

8. The micro-power generation device based on vascular pulsation as described in claim 7, characterized in that, The pre-compression frame is equipped with a pre-compression airbag, which applies pre-pressure to the energized blood vessel.

9. The micro-power generation device based on vascular pulsation as described in any one of claims 1 to 8, characterized in that, The micro-power generation device includes two semiconductor slides, and the two semiconductor slides correspond to their respective super-slippery conductive sheets and energy-harvesting connectors; The two semiconductor slides are arranged opposite each other.

10. The micro-power generation device based on vascular pulsation as described in claim 9, characterized in that, When the micro-power generation device includes the pre-compression frame, the pre-compression frame is an elastic connecting strip; The elastic connecting strip is connected to the two semiconductor slides at both ends, and the elastic connecting strip is a pre-stretched connecting strip.

11. An implantable microdevice, characterized in that, The implantable microdevice includes a micro-power generation device based on vascular pulsation as described in any one of claims 1 to 10.

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