CN112886720A

CN112886720A - In-vivo electronic device suitable for wireless power supply

Info

Publication number: CN112886720A
Application number: CN202110472699.1A
Authority: CN
Inventors: 洪宇祥; 李旭; 胥红来; 刘涛; 寇宇畅
Original assignee: Neuracle Technology Changzhou Co ltd
Current assignee: Neuracle Technology Changzhou Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-06-01
Anticipated expiration: 2041-04-29
Also published as: CN112886720B

Abstract

The invention discloses an in-vivo electronic device suitable for wireless power supply, which comprises a control main body and an electrode group, wherein the electrode group is electrically connected with the control main body; the energy receiver comprises a magnet and a receiving coil arranged on the periphery of the magnet in a surrounding mode, the receiving coil is electrically connected with the host, the receiving coil is suitable for being wirelessly coupled with the external equipment to achieve wireless power supply to the host, the control main body further comprises a connector assembly located outside the conductive shell, the connector assembly is electrically connected with the host, and the electrode wire of the electrode assembly is electrically connected with the connector assembly. The invention can realize wireless power supply to the host, save batteries in the in-vivo electronic device, further reduce the volume of the in-vivo electronic device, improve the safety of the in-vivo electronic device, support higher internal circuit power consumption and realize more functions.

Description

In-vivo electronic device suitable for wireless power supply

Technical Field

The invention relates to the technical field of wireless power supply, in particular to an in-vivo electronic device capable of wirelessly supplying power.

Background

In vivo electronic devices are delivering electrical stimulation to nerves and tissues for the treatment of various biological disorders, such as for the treatment of chronic diseases of parkinson, dystonia, essential tremor, epilepsy, and the like.

The existing in-vivo electronic device mostly adopts a built-in battery to supply power, and is also provided with a charging coil to charge the battery, however, no matter the battery is a common battery or a rechargeable battery, the service life of the battery is limited, when the service life of the battery is about to reach, an operation is needed to be performed in time to replace the battery, the health of a patient can be injured, and the use cost of the patient can be increased. Meanwhile, the built-in battery also has potential safety hazards, for example, after the battery is damaged, internal liquid leaks or the battery is heated due to factors such as charging and the like, and spontaneous explosion may occur in extreme cases, so that life safety of a patient is threatened.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to solve the technical problem that potential safety hazards exist when an in-vivo electronic device in the prior art is powered by a battery, the invention provides the in-vivo electronic device suitable for wireless power supply.

The technical scheme adopted by the invention for solving the technical problems is as follows: an in-vivo electronic device suitable for wireless power supply comprises a control main body and an electrode group, wherein the electrode group is electrically connected with the control main body, the control main body comprises a conductive shell and an energy receiver, a host is installed inside the conductive shell, and the energy receiver is located outside the conductive shell; the energy receiver includes the magnet and encircles the setting and is in the receiving coil of magnet periphery, receiving coil with the host computer electricity is connected, receiving coil is suitable for with external equipment wireless coupling in order to realize right the host computer wireless power supply, the control main part still includes the connector subassembly, and it is located electrically conductive casing is outside, the connector subassembly with the host computer electricity is connected, the electrode line of electrode group with the connector subassembly electricity is connected. According to the in-vivo electronic device suitable for wireless power supply, the electric energy for supplying power to the host is obtained through the wireless coupling of the receiving coil and the in-vitro equipment, so that a battery in the in-vivo electronic device can be saved, the size of the in-vivo electronic device is further reduced, the safety of the in-vivo electronic device is improved, higher internal circuit power consumption can be supported, and more functions can be realized; the electrode wire is connected with the host through the connector, so that interchangeability of products can be improved. When only electrode group damages or internal electron device main part need be changed, only need to damage or need change the part pull down can, need not pull down whole internal electron device, can reduce the injury to the patient on the one hand, on the other hand can practice thrift the cost, improves the utilization ratio of product.

Further, specifically, the host computer includes a circuit board and a circuit module disposed on the circuit board, the receiving coil is electrically connected to the circuit board, and the circuit module is provided with a voltage reduction and stabilization circuit. The energy received by the receiving coil directly supplies power to the circuit module, the obtained voltage can change along with the shaking of the receiving coil, and the voltage of the coil is converted into stable and constant voltage suitable for supplying power to the circuit board by designing the voltage reduction and voltage stabilization circuit, so that the stable work of a rear-stage circuit is ensured.

Further, it is specific, the host computer still includes a feed-through dish and runs through a plurality of feed-through pins of feed-through dish, feed-through dish with electrically conductive casing fixed connection, it is a plurality of feed-through pin with the circuit board is connected, the circuit board pass through feed-through pin with receiving coil is connected. Every feed-through pin is stand-alone type feed-through pin, and it is sealed through ceramic tube welding between every feed-through pin and the feed-through dish, makes on the one hand feed-through pin and feed-through dish between insulating, and on the other hand makes the space at circuit module place have good leakproofness, improves waterproof protection performance.

Further, specifically, the connector assembly at least comprises two connectors, each connector comprises at least two conducting rings and a sealing ring arranged between the two conducting rings, each conducting ring is internally provided with an inclined ring spring, the inclined ring springs are in electric contact with the inner wall of the conducting ring, and the electrode wires penetrate through the conducting rings and are in close contact with the inner sides of the inclined ring springs. The quantity of conducting rings matches with the quantity of electrode group electrodes, and a conducting ring is connected with an electrode electricity, and the sealing ring setting can prevent between two adjacent conducting rings influence each other between two adjacent conducting rings, has a plurality of contacts on the oblique circle spring, and its outside can be with the conducting ring electrical contact, and its inboard can be with the electrode line electrical contact, realizes the electricity of electrode and conducting ring and is connected.

Further, it is specific, every the conducting ring pass through the wire with the host computer electricity is connected, the connector with the whole cladding of wire has a silica gel protective sheath, the quantity of wire with the quantity of conducting ring is the same. One conducting ring is connected with the host through one conducting wire, so that the conducting rings cannot be influenced mutually, and the accuracy of signal acquisition can be improved; the connector and the whole cladding of wire have a silica gel protective sheath, can improve the protectiveness and the pliability of product.

Further, specifically, a groove is formed in the inner wall of each conducting ring, and at least part of the inclined ring spring is embedded in the groove. A part of the inclined coil spring is embedded in the groove, so that the contact can be in close contact with the conducting ring, and the conductivity is improved.

Further, specifically, a convex edge for guiding and positioning the electrode wire is arranged in each sealing ring. When the electrode line penetrates into the connector, the protruding edge can play a guiding role for the electrode line, and after the electrode line is installed, the protruding edge can be used for positioning the electrode line, so that the stability of the electrode line is maintained, and the stability of signal transmission is improved.

Further, it is specific, electrically conductive casing with the whole outside parcel that energy receiver formed has the second silica gel protective sheath, second silica gel protective sheath both sides still are equipped with the silica gel engaging lug respectively, every be equipped with the solid fixed ring of a plastics in the silica gel engaging lug, the silica gel engaging lug with the solid fixed ring integrative injection moulding of plastics, the bottom surface of second silica gel protective sheath is the cambered surface. The silica gel connection lugs are arranged on the two sides of the second silica gel protective sleeve, and the bone screws can be fixed on the skull through the silica gel connection lugs, so that the fixation adjustability of the control main body can be improved, the control main body can be better attached to the skull, and the fixation stability is improved; simultaneously, be equipped with the solid fixed ring of plastics of integrative moulding plastics in the silica gel engaging lug, the solid fixed ring of plastics can improve the intensity of the silica gel engaging lug of bone screw fixed department for the silica gel engaging lug is difficult to the fracture. The fixing ring is preferably made of a peek material, the peek material has good compatibility with a human body, the material is light, the strength is reliable, and the material has good compatibility with silica gel; the bottom surface of the second silica gel protective sleeve is a cambered surface which can be better attached to the skull.

Further, it is specific, electrically conductive casing includes epitheca and lower cover, the epitheca with fixed connection holds the chamber in order to form between the lower cover, the host computer install in hold the intracavity. The upper shell is a titanium alloy shell, the lower cover is cylindrical, and when the in-vivo electronic device is installed, a cylindrical blind hole matched with the lower cover can be formed in the skull, so that the in-vivo electronic device can be positioned.

Further, it is specific, the surface of epitheca inlays and is equipped with first electrode and second electrode, first electrode lower surface with be equipped with the insulating layer between the epitheca surface, second electrode lower surface with be equipped with the insulating layer between the epitheca surface, first electrode with the second electrode expose in the second silica gel protective sheath. The insulating layer can be the silica gel material, realizes the insulation between first electrode, second electrode and the epitheca, prevents the interact between the signal of telecommunication. The conductive shell is stably fixed on the skull, and the first electrode and the second electrode are arranged on the upper shell, so that the stability of the first electrode and the second electrode can be improved, and the accuracy of signal acquisition is improved; the first electrode and the second electrode are exposed out of the second silica gel protective sleeve, so that the upper surfaces of the first electrode and the second electrode can be in direct contact with the skin or tissue of a human body, and monitoring and comparison of subsequent physiological signals are facilitated; moreover, the conductive shell type electrode can increase the contact area with the skin or tissue of a human body, so that the signal acquisition range is larger, and the loop area formed when the nerve is stimulated is larger; meanwhile, the second silica gel protective sleeve can also have a certain fixing effect on the edges of the first electrode and the second electrode.

Further, specifically, the wire has a spiral structure. The helical structure of many wires is the same, and all is by a silica gel protective sheath cladding, because a silica gel protective sheath has elasticity, when the wire received the tensile, helical structure can compensate wire length, prevents that the wire from splitting.

Further, specifically, the electrode group is a cortical electrode group or a deep electrode group.

The in-vivo electronic device suitable for wireless power supply has the advantages that the receiving coil is wirelessly coupled with the in-vitro equipment to obtain the electric energy for supplying power to the host, so that a battery in the in-vivo electronic device can be saved, the size of the in-vivo electronic device is further reduced, the safety of the in-vivo electronic device is improved, higher internal circuit power consumption can be supported, and more functions can be realized; the voltage reduction and stabilization circuit is designed to convert the coil voltage into stable and constant voltage suitable for supplying power to the circuit board, so that the stable work of a post-stage circuit is ensured; the electrode wire is connected with the host through the connector, so that the interchangeability of products can be improved; the silica gel connection lugs are arranged on the two sides of the second silica gel protective sleeve, and the bone screws can be fixed on the skull through the silica gel connection lugs, so that the fixation adjustability of the control main body can be improved, the control main body can be better attached to the skull, and the fixation stability is improved; meanwhile, the plastic fixing ring which is integrally molded is arranged in the silica gel connection lug, and the plastic fixing ring can improve the strength of the silica gel connection lug at the fixed part of the bone screw, so that the silica gel connection lug is not easy to crack; the first electrode and the second electrode are arranged on the upper shell, so that the stability of the first electrode and the second electrode can be improved, and the accuracy of signal acquisition is improved; the helical structure of many wires is the same, and all is by a silica gel protective sheath cladding, because a silica gel protective sheath has elasticity, when the wire received the tensile, helical structure can compensate wire length, prevents that the wire from splitting.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the configuration of an in-vivo electronic device suitable for wireless power supply of the present invention;

FIG. 2 is a schematic structural diagram of the control body of the present invention;

FIG. 3 is a schematic structural view of the connector assembly of the present invention;

FIG. 4 is a cross-sectional view of the connector of the present invention;

FIG. 5 is a schematic structural view of a second silicone protective cover of the present invention;

FIG. 6 is a cross-sectional view of the control body of the present invention;

FIG. 7 is a schematic diagram of a stepped configuration of the conductive ring and the sealing ring of the present invention;

fig. 8 is a schematic structural view of a first electrode and a second electrode in the related art.

In the figure: 1. conductive shell, 2, host computer, 3, energy receiver, 4, connector assembly, 5, second silica gel protective sheath, 11, epitheca, 12, lower cover, 13, hold the chamber, 14, first electrode, 15, second electrode, 21, circuit board, 22, circuit module, 23, feed through dish, 24, feed through pin, 25, antenna, 211, through-hole, 31, magnet, 32, receiving coil, 41, connector, 42, wire, 43, first silica gel protective sheath, 411, conducting ring, 412, sealing ring, 413, inclined ring spring, 4111, recess, 4121, ledge, 51, silica gel engaging lug, 52, plastic retaining ring.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-7, which are preferred embodiments of the present invention, an in-vivo electronic device adapted for wireless power supply includes a control body and an electrode assembly electrically connected to the control body; the control main body comprises a conductive shell 1 and an energy receiver 3, a host machine 2 is installed inside the conductive shell 1, and the energy receiver 3 is located outside the conductive shell 1; the energy receiver 3 comprises a magnet 31 and a receiving coil 32 arranged around the periphery of the magnet 31, the receiving coil 32 is electrically connected with the host machine 2, the receiving coil 32 is suitable for being wirelessly coupled with an extracorporeal device to realize wireless power supply of the host machine 2, the control main body further comprises a connector component 4 which is positioned outside the conductive shell 1, the connector component 4 is electrically connected with the host machine 2, and an electrode wire of the electrode group is electrically connected with the connector component 4. The in-vivo electronic device can be applied to a cerebral nerve regulator, for example, implanted into a patient to treat nervous diseases, the electrode group can be a cortical electrode group or a deep electrode group, the cortical electrode group is suitable for being arranged in a cerebral cortex, the deep electrode group is suitable for being arranged in deep brain tissues, the electrode group can comprise a stimulation electrode for outputting a stimulation signal and a collecting electrode for collecting a physiological electric signal, and the electrode group is electrically connected with the control main body through an electrode wire. The receiving coil 32 can be wirelessly coupled with an external device such as an external coil to obtain electric energy to directly supply power to the host 2, a battery is not required to be arranged in the internal electronic device, on one hand, the volume of the internal electronic device can be reduced, on the other hand, higher internal circuit power consumption can be supported, more functions can be realized, for example, the receiving coil can also be used as a medium for synchronous signal transmission, the sudden change of a power supply voltage signal is used as a synchronous signal by utilizing the real-time property of coil voltage signal transmission, an additional chip for synchronous signal transmission is omitted from being arranged in the host, the power consumption can be reduced, the synchronous precision of physiological signal acquisition can be met, the voltage of the receiving coil part is not subjected to the filtering processing of a system, only changes along with the voltage change of the external device, and does not interfere with the voltage of other components in the host, when the synchronous operation is not needed, the voltage of the transmitting coil is kept constant at a reference voltage, when the synchronous operation is needed, the power supply voltage is improved by 20% -50% on the basis of the reference voltage, the receiving coil senses the voltage mutation and transmits a signal to the host, and the host can recognize the voltage mutation as a synchronous operation signal and execute the synchronous operation. In this embodiment, the magnet 31 is disposed at the center of the receiving coil 32, the magnet 31 can be fixed to an external device, and meanwhile, the magnet 31 and the receiving coil 32 need to keep a certain distance, so that interference between the magnetic field of the magnet 31 and the induced magnetic field of the receiving coil 32 is avoided, and power supply efficiency is not affected, the number of turns of the receiving coil can be 6-8, which can meet the requirement of power supply for a host, and the volume of the energy receiver is not too large.

The host 2 includes a circuit board 21 and a circuit module 22 disposed on the circuit board 21, and the receiving coil 32 is electrically connected to the circuit board 21. The main body 2 further comprises a feed-through disc 23 and a plurality of feed-through pins 24 penetrating through the feed-through disc 23, the feed-through disc 23 is fixedly connected with the conductive shell 1, the feed-through pins 24 are connected with the circuit board 21, and the circuit board 21 is connected with the receiving coil 32 through the feed-through pins 24. The upper pin of each feedthrough pin 24 is soldered to the circuit board 21, the circuit board 21 is provided with a plurality of through holes 211, the feedthrough pins 24 can pass through the through holes 211, and the number of the through holes 211 corresponds to the number of the feedthrough pins 24. In the present embodiment, the feedthrough pins 24 are free-standing feedthrough pins, each feedthrough pin 24 is surrounded by a ceramic tube, the gap between the ceramic tube and the feedthrough pin 24 can be sealed by welding, the ceramic tube can insulate the feedthrough pin 24 and the feedthrough disc 23 from each other, the feedthrough disc 23 can be sealed with the conductive housing 1 by laser welding, and the circuit module 22 on the circuit board 21 can be electrically connected with other electrical components such as a receiving coil, an electrode group, and the like through the feedthrough pin 24, so that the electrical sealing protection of the circuit module 22 part can be realized. The independent feed-through structure can avoid the problem of overlarge brazing area caused by integral feed-through, improve the sealing effect and reduce the leakage risk. In this embodiment, the circuit module 22 includes a voltage-reducing and voltage-stabilizing circuit, the in-vivo electronic device in the prior art supplies power to the host through a battery, the voltage sensed by the receiving coil reaches the battery through the charging circuit, and the battery provides a voltage suitable for supplying power to the host; if remove the battery, original circuit structure can't directly provide the voltage that is fit for the host computer power supply, and receiving coil coupling received energy, through resonance, behind the rectifier circuit, the voltage that obtains can rock along with receiving coil and change, consequently, this embodiment has improved circuit structure, has designed step-down voltage stabilizing circuit, and receiving coil coupling received energy can obtain a stable voltage after step-down voltage stabilizing circuit, ensures the steady operation of back level circuit.

The connector assembly 4 comprises at least two connectors 41, each connector 41 comprises at least two conductive rings 411 and a sealing ring 412 disposed between the two conductive rings 411, a canted coil spring 413 is disposed in each conductive ring 411, the canted coil spring 413 is electrically contacted with an inner wall of the conductive ring 411, and an electrode wire penetrates through the conductive rings 411 and is closely contacted with an inner side of the canted coil spring 413. Each conductive ring 411 is electrically connected to the host 2 through a conductive wire 42, and the connector 41 and the conductive wire 42 are integrally covered with a first silicone protective sleeve 43. The inner wall of each conducting ring 411 is provided with a groove 4111, at least part of the inclined ring spring 413 is embedded in the groove 4111, and the inner diameter of the inclined ring spring 413 is slightly smaller than the outer diameter of the electrode wire, so that more contacts of the inclined ring spring 413 are in close contact with the conducting ring 411, and the conductivity is improved. Each canted coil spring 413 can independently compensate for variations in contact surface, allowing for wider tolerances between fittings, multiple contact points can increase conductivity, and its use operates at a lower temperature and therefore has a longer life. The sealing ring 412 inner wall is equipped with the protruding edge 4121 of round, protruding along 4121 can with the in close contact with of electrode line, play the guide effect when the electrode line penetrates in connector 41, can play the positioning action to the electrode line after the electrode line is installed, improve the stability of electrode line. In this embodiment, the sealing ring 412 is made of an insulating material, such as a TPU pipe, the outer diameter of the sealing ring 412 is the same as the outer diameter of the conductive ring 411, and during assembly, the conductive ring 411 and the sealing ring 412 are aligned by a mold, and then the outer surfaces of the conductive ring 411 and the sealing ring 412 are sealed and fixed by silica gel, so that the structure can be simplified and the cost can be reduced. Of course, in other embodiments, the sealing ring 412 may have a step structure, and accordingly, the conducting ring 411 has a step structure, the step structure of the sealing ring 412 and the step structure of the conducting ring 411 can be matched with a clamping connection to achieve the mutual connection between the conducting ring 411 and the sealing ring 412, and then the conducting ring 411 and the sealing ring 412 are sealed with silica gel. In this embodiment, the wire 42 is a spiral structure, the number of the wire 42 is the same as that of the conductive ring 411, the spiral directions of the wires 42 are the same, and the connector 41 and the wire 42 are integrally wrapped with the first silica gel protective sleeve 43. In this embodiment, the electrode wire is connected to the main body 2 through the connector 41, so as to improve the interchangeability of the product, if the electrode wire is directly connected to the control main body, when the electrode group or the electrode wire is damaged, the whole in-vivo electronic device needs to be detached for replacement, so that the damage to the patient is large, the electrode wire is connected to the control main body through the connector, when the electrode group or the control main body is damaged, only the electrode group or the control main body needs to be detached, and the whole in-vivo electronic device does not need to be detached for replacement; or when the control main body is upgraded and replaced and needs to be replaced, the control main body only needs to be replaced; meanwhile, the connector can be also adapted to electrode groups of different specifications and models, so that convenience is improved; the design of the connector assembly can on the one hand reduce the harm to the patient and on the other hand also save costs. The pluggable electrical contact element in the connector employs a canted coil spring whose size and number of independent coil turns make the spring suitable for use in a variety of electrical contact designs and for electrical or EMI shielding applications with maximum contact point for optimal current carrying capability.

Electrically conductive casing 1 has second silica gel protective sheath 5 with whole outside parcel that energy receiver 3 formed, and 5 both sides of second silica gel protective sheath still are equipped with silica gel engaging lug 51 respectively, are equipped with the solid fixed ring 52 of a plastics in every silica gel engaging lug 51, the solid fixed ring 52 integrative injection moulding of silica gel engaging lug 51 and plastics, and the bottom surface of second silica gel protective sheath 5 is the cambered surface, silica

gel engaging lug

51 and 5 integrated into one piece of second silica gel protective sheath. In the embodiment, the plastic fixing ring 52 is preferably made of a peek material, which has good compatibility with human body, light weight, reliable strength, and good compatibility with silicone. This implementation is fixed the bone screw to the skull through silica gel engaging lug 51, has avoided directly beating the bone screw on electrically conductive casing 1, has effectively improved the fixed controllability of bone screw. If the bone screw is directly fixed through electrically conductive casing 1, because electrically conductive casing 1 is the metal material, has certain rigidity, and the skull is circular, and the electrically conductive casing of metal can't laminate with the skull completely, and set screw has the unstable factor, and it is not hard up probably to appear, causes the injury to the patient. Silica gel has fine flexibility, can laminate well with the skull, but the bone screw is direct to be fixed on the skull through silica gel, and silica gel is probably ftractureed, consequently, in this implementation through with the solid fixed ring 52 an organic whole of plastics in silica gel engaging lug 51, can enough satisfy the laminating nature of silica gel engaging lug, can guarantee the intensity of silica gel engaging lug again, can not cause harm to the patient yet.

The conductive shell 1 comprises an upper shell 11 and a lower cover 12, the upper shell 11 and the lower cover 12 are fixedly connected to form a containing cavity 13, and the host 2 is installed in the containing cavity 13. The upper shell 11 is a titanium alloy conductive shell, the lower cover 12 is cylindrical, and when the in-vivo electronic device is installed, a cylindrical blind hole matched with the in-vivo electronic device can be formed in the skull, so that the in-vivo electronic device can be positioned. The host machine 2 further comprises an antenna 25, the antenna 25 is electrically connected with the feedthrough pin 24, and the antenna 25 can transmit signals and data with the extracorporeal device. A first electrode 14 and a second electrode 15 are embedded in the outer surface of the upper shell 11, an insulating layer is arranged between the lower surface of the first electrode 14 and the outer surface of the upper shell 11, an insulating layer is arranged between the lower surface of the second electrode 15 and the outer surface of the upper shell 11, and the first electrode 14 and the second electrode 15 are exposed out of the second silica gel protective sleeve 5. In this embodiment, the first electrode 14 and the second electrode 15 are flat and have a certain curvature, and the first electrode 14 and the second electrode 15 may be made of platinum-iridium alloy and have certain strength and elasticity, so that the first electrode 14 and the second electrode 15 can be well embedded in the groove of the upper case 11; when the first electrode 14 and the second electrode 15 are mounted on the upper shell 11, they do not protrude from the upper surface of the upper shell 11, the first electrode 14 and the second electrode 15 are connected to the feedthrough pin 24, and the first electrode 14 and the second electrode 15 are exposed out of the second silicone protective sleeve 5, so that the upper surface of the first electrode 14 and the upper surface of the second electrode 15 can contact with the skin or tissue of the human body to generate an electric potential, in this embodiment, the first electrode 14 may be a reference electrode, and the second electrode 15 may be a ground electrode; alternatively, the first electrode 14 and the second electrode 15 are both ground electrodes; alternatively, the first electrode 14 may be a ground electrode, and the second electrode 15 may be a reference electrode, and the types of the first electrode and the second electrode are not limited herein and may be provided as needed. The first electrode 14 and the second electrode 15 in the prior art are generally arranged on a lead (as shown in fig. 8) or at equal positions on electrode plates of an electrode group, when an in-vivo electronic device is fixed on a skull, the first electrode and the second electrode are in a loose state because the first electrode and the second electrode are not well fixed, and when the head of a patient rotates or other actions occur, the lead and the electrode plates are easy to move, so that the first electrode and the second electrode are very unstable and influence signal monitoring; the first electrode 14 and the second electrode 15 are arranged on the conductive shell 1 in the embodiment, because the conductive shell 1 is stably fixed on the skull, the first electrode 14 and the second electrode 15 are also stable, and the first electrode 14 and the second electrode 15 are flat with a certain radian, the volume of the conductive shell is not additionally increased, the contact area with the skin or tissue of a human body can be increased, the signal acquisition range is larger, the loop area formed when the nerve is stimulated is larger, the stimulation range is enlarged, and the treatment effect is favorably improved. Meanwhile, the second silica gel protective sleeve can also have a certain fixing effect on the edges of the first electrode and the second electrode, so that the stability of the first electrode and the second electrode is further improved.

In conclusion, the in-vivo electronic device suitable for wireless power supply directly supplies power to the host through the receiving coil, so that a battery structure is omitted, the size of the in-vivo electronic device can be further reduced, the harm to a patient is reduced, the safety of the in-vivo electronic device can be improved, and the spontaneous combustion and spontaneous explosion risks of the battery are avoided; the connector assembly is used as a connecting bridge between the electrode group and the host, so that the interchangeability of products is improved, the cost can be saved, and the utilization rate of resources is improved; by arranging the fixing structures of the bone screws on two sides of the second silica gel protective sleeve and combining the plastic fixing rings, the fitting degree of the control main body and the skull can be improved during fixing, and silica gel can be prevented from cracking; through setting up first electrode and second electrode on the epitheca surface, can improve the stability of first electrode and second electrode acquisition signal, improve the accuracy of data monitoring.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined by the scope of the claims.

Claims

1. An in-vivo electronic device adapted for wireless power supply, comprising a control body and an electrode set, the electrode set being electrically connected to the control body, characterized in that:

the control main body comprises a conductive shell (1) and an energy receiver (3), a host (2) is installed inside the conductive shell (1), and the energy receiver (3) is located outside the conductive shell (1); the energy receiver (3) comprises a magnet (31) and a receiving coil (32) arranged around the periphery of the magnet (31), the receiving coil (32) is electrically connected with the host (2), the receiving coil (32) is suitable for being wirelessly coupled with an extracorporeal device to realize wireless power supply of the host (2),

the control main body further comprises a connector assembly (4) which is located outside the conductive shell (1), the connector assembly (4) is electrically connected with the host (2), and the electrode wires of the electrode group are electrically connected with the connector assembly (4).

2. The in-vivo electronic device adapted for wireless power supply according to claim 1, wherein: the host (2) comprises a circuit board (21) and a circuit module (22) arranged on the circuit board (21), the receiving coil (32) is electrically connected with the circuit board (21), and the circuit module (22) is provided with a voltage reduction and stabilization circuit.

3. The in-vivo electronic device adapted for wireless power supply according to claim 2, wherein: the host (2) further comprises a feed-through disc (23) and a plurality of feed-through pins (24) penetrating through the feed-through disc (23), the feed-through disc (23) is fixedly connected with the conductive shell (1), the feed-through pins (24) are connected with the circuit board (21), and the circuit board (21) is connected with the receiving coil (32) through the feed-through pins (24).

4. The in-vivo electronic device adapted for wireless power supply according to claim 1, wherein: the connector assembly (4) at least comprises two connectors (41), each connector (41) comprises at least two conductive rings (411) and a sealing ring (412) arranged between the two conductive rings (411), each conductive ring (411) is internally provided with an inclined ring spring (413), the inclined ring springs (413) are in electric contact with the inner wall of the conductive ring (411), and the electrode wire penetrates through the conductive rings (411) and is in close contact with the inner sides of the inclined ring springs (413).

5. The in-vivo electronic device adapted for wireless power supply according to claim 4, wherein: each conducting ring (411) is electrically connected with the host (2) through a conducting wire (42), the connector (41) and the conducting wire (42) are integrally coated with a first silica gel protective sleeve (43), and the number of the conducting wires (42) is the same as that of the conducting rings (411).

6. The in-vivo electronic device adapted for wireless power supply according to claim 4, wherein: each conducting ring (411) is provided with a groove (4111) on the inner wall, and at least part of the inclined ring spring (413) is embedded in the groove (4111).

7. The in-vivo electronic device adapted for wireless power supply according to claim 4, wherein: each sealing ring (412) is internally provided with a convex edge (4121) used for guiding and positioning the electrode wire.

8. The in-vivo electronic device adapted for wireless power supply according to claim 1, wherein: electrically conductive casing (1) with the whole outside parcel that energy receiver (3) formed has second silica gel protective sheath (5), second silica gel protective sheath (5) both sides still are equipped with silica gel engaging lug (51), every be equipped with the solid fixed ring of plastics (52) in silica gel engaging lug (51), silica gel engaging lug (51) with the solid fixed ring of plastics (52) integrative injection moulding, the bottom surface of second silica gel protective sheath (5) is the cambered surface.

9. The in-vivo electronic device adapted for wireless power supply according to claim 8, wherein: the conductive shell (1) comprises an upper shell (11) and a lower cover (12), the upper shell (11) and the lower cover (12) are fixedly connected to form an accommodating cavity (13), and the host (2) is installed in the accommodating cavity (13).

10. The in-vivo electronic device adapted for wireless power supply according to claim 9, wherein: the surface of epitheca (11) inlays and is equipped with first electrode (14) and second electrode (15), first electrode (14) lower surface with be equipped with the insulating layer between epitheca (11) surface, second electrode (15) lower surface with be equipped with the insulating layer between epitheca (11) surface, first electrode (14) with second electrode (15) expose in second silica gel protective sheath (5).

11. The in-vivo electronic device adapted for wireless power supply according to claim 5, wherein: the lead (42) has a helical structure.

12. The in-vivo electronic device adapted for wireless power supply according to claim 1, wherein: the electrode group is a cortical electrode group or a deep electrode group.