A wireless charging device for brain pacemaker

Abstract

The present invention relates to the technical field of medical devices, and discloses a brain pacemaker wireless charging device, including a pulse generator, a connector is arranged on the top of the pulse generator, and an extension line is fixedly connected to the connector, a deep electrode is arranged at one end of the extension line away from the connector, a control circuit board and a storage battery are arranged inside the pulse generator, and an installation cavity is opened in the middle of the pulse generator, and a temperature difference power generation mechanism capable of generating electricity through temperature difference is arranged in the installation cavity. The brain pacemaker wireless charging device, because the temperature in the human body gradually decreases from the body core to the body surface, there is a temperature difference, and the temperature difference power generation mechanism is integrated in the middle of the pulse generator, and the P-type thermoelectric legs and the N-type thermoelectric legs in the temperature difference power generation mechanism are connected in series through electrode sheets to form a temperature difference power generation unit, thereby utilizing the temperature difference between the inside and outside of the human body to generate electricity for the pulse generator, and no frequent charging operation is required.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a wireless charging device for a brain pacemaker. Background Art

[0002] The implantable brain pacemaker consists of electrodes in the brain, extension wires and a pulse generator. The pulse generator is surgically implanted under the skin near the clavicle of the chest. The electrical pulses emitted by the pulse generator are transmitted to the stimulation electrodes through a wire implanted under the skin, through the head, neck and shoulder, and act on specific nuclei in the brain. Continuous pulse electrical stimulation suppresses abnormal discharges of brain nuclei, achieving the effect of treating Parkinson's disease.

[0003] At present, most pulse generators used in clinical practice are equipped with wireless charging devices, and patients can extend the life of the pulse generator to 10-25 years by repeated charging. However, patients basically need to charge the pulse generator every day, and most Parkinson's patients have symptoms such as tremors and rigidity, and cannot use their hands to assist in charging throughout the process, which is difficult to operate; in addition, existing pulse generators also have a form of self-generating structure, such as the patent with publication number CN104740762B discloses a self-powered brain pacemaker, which has a piezoelectric power generation structure outside the heart and generates electricity through piezoelectric materials when the heart beats. Although it can supply electricity to the pulse generator through self-generation, its power generation structure is set separately from the pulse generator. In addition to the pulse generator, the power generation structure needs to be implanted independently, which increases the difficulty and danger of implantation. At the same time, the piezoelectric power generation structure is wrapped outside the heart, which will also affect the normal function of the heart. Summary of the invention

[0004] The purpose of the present invention is to provide a wireless charging device for a brain pacemaker to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a brain pacemaker wireless charging device, comprising a pulse generator, a connector is arranged on the top of the pulse generator, and an extension line is fixedly connected to the connector, a deep electrode is arranged at one end of the extension line away from the connector, a control circuit board and a storage battery are arranged inside the pulse generator, an installation cavity is opened in the middle of the pulse generator, and a temperature difference power generation mechanism capable of generating electricity through temperature difference is arranged in the installation cavity;

[0006] The temperature difference power generation mechanism includes an upper metal substrate and a lower metal substrate fixedly mounted on the pulse generator, an upper resin layer fixedly mounted on the inner side of the upper metal substrate, a plurality of heat-conducting fins arranged on the outer side of the upper metal substrate, a plurality of upper electrode sheets embedded in the upper resin layer, a lower resin layer fixedly mounted on the inner side of the lower metal substrate, a plurality of lower electrode sheets embedded in the lower resin layer, a plurality of P-type thermoelectric legs and N-type thermoelectric legs are arranged between the upper electrode sheets and the lower electrode sheets, and two sets of connecting wires are welded on the lower electrode sheet of the lower metal substrate, and the connecting wires are electrically connected to the control circuit board.

[0007] Preferably, one end of the connector extends into the interior of the pulse generator and is electrically connected to the control circuit board. The interior of the pulse generator is provided with an installation cavity that cooperates with the storage battery. The overall shape of the storage battery is a "C" shape, and the storage battery is electrically connected to the control circuit board. The pulse generator and the temperature difference power generation mechanism are integrated to facilitate the integrated implantation of the two.

[0008] Preferably, the size of the temperature difference power generation mechanism is adapted to the installation cavity, and installation ears are provided on the upper metal substrate and the lower metal substrate, and screws are passed through the installation ears. The upper metal substrate and the lower metal substrate are fixedly installed on the pulse generator by screws, and the upper metal substrate and the lower metal substrate are fixedly installed in the installation cavity by screws, thereby ensuring the firmness of the connection between the overall temperature difference power generation mechanism and the pulse generator.

[0009] Preferably, the P-type thermoelectric legs, N-type thermoelectric legs are welded and fixed to the upper electrode sheet and the lower electrode sheet, and several P-type thermoelectric legs and N-type thermoelectric legs are connected in series through the upper electrode sheet and the lower electrode sheet. After several P-type thermoelectric legs and N-type thermoelectric legs are connected in series, a temperature difference power generation component can be assembled to ensure that several P-type thermoelectric legs and N-type thermoelectric legs can generate electricity according to the temperature difference between the inside and outside of the human body.

[0010] Preferably, an insulating shell is provided between the upper metal substrate and the lower metal substrate, and the insulating shell is sleeved on the outside of the P-type thermoelectric leg and the N-type thermoelectric leg, and the interior of the insulating shell is filled with insulating filler. The insulating filler and the insulating shell are provided in the temperature difference power generation mechanism, which can block the heat transfer at both ends of the temperature difference power generation mechanism and ensure the temperature difference and power generation efficiency at both ends of the temperature difference power generation mechanism.

[0011] Preferably, the upper metal substrate and the lower metal substrate are both provided with thermal insulation rings on their circumferential sides, and the outer portion of the thermal insulation rings abuts against the inner wall of the mounting cavity, thereby avoiding heat transfer between the pulse generator and the upper metal substrate and the lower metal substrate, and avoiding affecting the temperature difference at both ends of the temperature difference power generation mechanism.

[0012] Preferably, a plurality of heat-conducting fins are welded on the upper metal substrate in a cross-distribution, and the portion of the heat-conducting fins located on the outer side of the upper metal substrate is fixedly connected with an insulating pad. A plurality of heat-conducting fins are arranged on the upper metal substrate close to the side of the human body, which can quickly transfer heat to the upper metal substrate and increase the temperature difference between the inner and outer ends of the temperature difference power generation mechanism.

[0013] Preferably, the insulating pad abuts against the pulse generator, the cross-sectional shape of the heat-conducting fin along the long side is semicircular or rectangular, and an insulating pad is arranged on the contact surface between the heat-conducting fin and the pulse generator to isolate the heat-conducting fin from the pulse generator.

[0014] Preferably, the upper metal substrate, the lower metal substrate, the heat-conducting fin plate and the outer side of the pulse generator are made of the same material, which is titanium alloy, to ensure the strength and thermal conductivity of the upper metal substrate and the lower metal substrate, while making them have better biocompatibility.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The brain pacemaker wireless charging device has a temperature difference gradually decreasing from the core to the surface of the human body, so a temperature difference power generation mechanism is integrated in the middle of the pulse generator. The P-type thermoelectric legs and the N-type thermoelectric legs in the temperature difference power generation mechanism are connected in series through electrodes to form a temperature difference power generation unit, thereby utilizing the temperature difference inside and outside the human body to generate electricity for the pulse generator. Frequent charging operations are not required, and the temperature difference power generation mechanism is integrated with the pulse generator. The temperature difference power generation mechanism can be installed in place after the pulse generator is implanted, which reduces the difficulty of installation and implantation, while improving the safety during implantation.

[0017] 2. The brain pacemaker wireless charging device integrates the temperature difference power generation mechanism on the pulse generator. The pulse generator itself can serve as a barrier structure to avoid heat transfer at both ends of the temperature difference power generation mechanism, thereby increasing the temperature difference at both ends of the temperature difference power generation mechanism and improving the power generation efficiency of the temperature difference power generation mechanism. At the same time, insulating fillers and insulating shells are arranged in the temperature difference power generation mechanism, which can also block the heat transfer at both ends of the temperature difference power generation mechanism and ensure the temperature difference at both ends of the temperature difference power generation mechanism and the power generation efficiency.

[0018] 3. The brain pacemaker wireless charging device can quickly transfer heat to the upper metal substrate by arranging a plurality of heat-conducting fins on the upper metal substrate close to the human body, thereby further increasing the temperature difference between the inner and outer ends of the temperature difference power generation mechanism and increasing the power generation efficiency. At the same time, an insulating pad is arranged on the contact surface between the heat-conducting fin and the pulse generator to isolate the heat-conducting fin from the pulse generator and prevent the heat in the heat-conducting fin from being transferred to the pulse generator.

[0019] 4. The brain pacemaker wireless charging device ensures the stability and sealing of the overall installation of the temperature difference power generation mechanism on the pulse generator by arranging heat insulating rings around the upper metal substrate and the lower metal substrate, and installing the upper metal substrate and the lower metal substrate on the pulse generator by screws, while avoiding heat transfer between the pulse generator and the upper metal substrate and the lower metal substrate, avoiding the influence on the temperature difference at both ends of the temperature difference power generation mechanism, and ensuring the power generation efficiency of the temperature difference power generation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure after the overall combination of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the middle part of the pulse generator in the present invention;

[0022] Figure 3 It is a schematic diagram of the structure inside the pulse generator of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the temperature difference power generation mechanism in the present invention;

[0024] Figure 5 It is a structural schematic diagram of the cross section of the temperature difference power generation mechanism in the present invention;

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlarged at A;

[0026] Figure 7 It is a schematic diagram of the structure of the combined connection of the P-type thermoelectric leg and the N-type thermoelectric leg in the present invention;

[0027] Figure 8 It is a schematic structural diagram of the top of the lower metal substrate in the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the explosion of the temperature difference power generation mechanism in the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the cooperation between the heat-conducting fin plate and the pulse generator in the present invention.

[0030] In the figure: 1. pulse generator; 2. connector; 3. extension line; 4. deep electrode; 5. control circuit board; 6. storage battery; 7. mounting cavity; 8. temperature difference power generation mechanism; 81. upper metal substrate; 82. upper resin layer; 83. upper electrode sheet; 84. lower metal substrate; 85. lower resin layer; 86. lower electrode sheet; 87. P-type thermoelectric leg; 88. N-type thermoelectric leg; 89. thermal insulation filler; 810. thermal insulation shell; 811. thermal insulation ring; 812. connecting wire; 813. thermal conductive fin plate; 814. insulation pad. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 10 In an embodiment of the present invention, a wireless charging device for a brain pacemaker includes a pulse generator 1, a connector 2 is provided on the top of the pulse generator 1, and an extension line 3 is fixedly connected to the connector 2, a deep electrode 4 is provided at one end of the extension line 3 away from the connector 2, a control circuit board 5 and a storage battery 6 are provided inside the pulse generator 1, a mounting cavity 7 is provided in the middle of the pulse generator 1, and a temperature difference power generation mechanism 8 capable of generating electricity by temperature difference is provided in the mounting cavity 7, because there is a temperature difference gradually decreasing from the core to the surface of the human body, the temperature difference power generation mechanism 8 is integrated in the middle of the pulse generator 1, and the P-type thermoelectric leg 87 and the N-type thermoelectric leg 88 in the temperature difference power generation mechanism 8 are connected in series through electrode sheets to form a temperature difference power generation unit, thereby utilizing the temperature difference between the inside and outside of the human body to generate electricity for use by the pulse generator 1, and there is no need for frequent charging operations;

[0033] The temperature difference power generation mechanism 8 includes an upper metal substrate 81 and a lower metal substrate 84 fixedly mounted on the pulse generator 1. The temperature difference power generation mechanism 8 is integrated on the pulse generator 1. The pulse generator 1 itself can serve as a barrier structure to avoid heat transfer at both ends of the temperature difference power generation mechanism 8, thereby increasing the temperature difference at both ends of the temperature difference power generation mechanism 8 and improving the power generation efficiency of the temperature difference power generation mechanism 8. The upper resin layer 82 is fixedly mounted on the inner side of the upper metal substrate 81, and a plurality of heat-conducting fins 813 are arranged on the outer side of the upper metal substrate 81. A plurality of heat-conducting fins 813 are arranged on the upper metal substrate 81 on the side close to the human body, which can quickly transfer heat to the upper metal substrate 81, thereby increasing the temperature difference of the temperature difference power generation mechanism. 8 has a temperature difference between the inner and outer ends, which increases the power generation efficiency. A plurality of upper electrode sheets 83 are embedded in the upper resin layer 82, a lower resin layer 85 is fixedly installed on the inner side of the lower metal substrate 84, and a plurality of lower electrode sheets 86 are embedded in the lower resin layer 85. A plurality of P-type thermoelectric legs 87 and N-type thermoelectric legs 88 are arranged between the upper electrode sheets 83 and the lower electrode sheets 86. Two groups of connecting wires 812 are welded on the lower electrode sheets 86 of the lower metal substrate 84, and the connecting wires 812 are electrically connected to the control circuit board 5. After the plurality of P-type thermoelectric legs 87 and N-type thermoelectric legs 88 are connected in series, a temperature difference power generation component can be assembled to ensure that the plurality of P-type thermoelectric legs 87 and N-type thermoelectric legs 88 can generate electricity according to the temperature difference between the inside and outside of the human body.

[0034] As a further implementation scheme of the above invention: one end of the connector 2 extends to the interior of the pulse generator 1 and is electrically connected to the control circuit board 5. The interior of the pulse generator 1 is provided with an installation cavity that cooperates with the storage battery 6. The overall shape of the storage battery 6 is a "C" shape. The control circuit board 5 and the storage battery 6 are prior art and are commercially available. The control circuit board 5 can adjust the working state of the temperature difference power generation mechanism 8 according to the storage power of the storage battery 6, and the storage battery 6 is electrically connected to the control circuit board 5. The installation position of the control circuit board 5 and the storage battery 6 inside the pulse generator 1 and the shape of the storage battery 6 are designed, and an installation space for the temperature difference power generation mechanism 8 is reserved in the middle of the pulse generator 1. The pulse generator 1 and the temperature difference power generation mechanism 8 are integrated to facilitate the integrated implantation of the two.

[0035] As a further implementation scheme of the above invention: the size of the temperature difference power generation mechanism 8 is adapted to the installation cavity 7, and the temperature difference power generation mechanism 8 is integrated in the middle of the pulse generator 1, which will not affect the shape and volume of the pulse generator 1. The impact of the device on the human body during implantation is not much different from that of the original pacemaker. The upper metal substrate 81 and the lower metal substrate 84 are both provided with installation ears, and screws are passed through the installation ears. The upper metal substrate 81 and the lower metal substrate 84 are fixedly installed on the pulse generator 1 by screws, and the upper metal substrate 81 and the lower metal substrate 84 are fixedly installed in the installation cavity 7 by screws, thereby ensuring the firmness of the overall connection between the temperature difference power generation mechanism 8 and the pulse generator 1.

[0036] As a further implementation scheme of the above invention: the P-type thermoelectric legs 87 and N-type thermoelectric legs 88 are welded and fixed to the upper electrode sheet 83 and the lower electrode sheet 86, and a plurality of P-type thermoelectric legs 87 and N-type thermoelectric legs 88 are connected in series through the upper electrode sheet 83 and the lower electrode sheet 86. After a plurality of P-type thermoelectric legs 87 and N-type thermoelectric legs 88 are connected in series, a temperature difference power generation component can be assembled to ensure that a plurality of P-type thermoelectric legs 87 and N-type thermoelectric legs 88 can generate electricity according to the temperature difference between the inside and outside of the human body, and transmit the generated electricity to the control circuit board 5 and the storage battery 6 along the connecting wire 812.

[0037] As a further implementation scheme of the above invention: an insulating shell 810 is arranged between the upper metal substrate 81 and the lower metal substrate 84, and the insulating shell 810 is mounted on the outside of the P-type thermoelectric leg 87 and the N-type thermoelectric leg 88. The insulating shell 810 is made of an insulating material with good biocompatibility, preferably polyurethane, and the insulating filler 89 is made of a lightweight material with low thermal conductivity, preferably aerogel. The interior of the insulating shell 810 is filled with the insulating filler 89. The insulating filler 89 and the insulating shell 810 are arranged in the temperature difference power generation mechanism 8, which can block the heat transfer at both ends of the temperature difference power generation mechanism 8 and ensure the temperature difference at both ends of the temperature difference power generation mechanism 8 and the power generation efficiency.

[0038] As a further implementation scheme of the above invention: the upper metal substrate 81 and the lower metal substrate 84 are both provided with insulation rings 811 on their circumferential sides, and the outer portion of the insulation rings 811 abuts against the inner wall of the mounting cavity 7. The insulation rings 811 are provided on the circumferential sides of the upper metal substrate 81 and the lower metal substrate 84 to ensure the sealing between the temperature difference power generation mechanism 8 and the pulse generator 1, and at the same time avoid heat transfer between the pulse generator 1 and the upper metal substrate 81 and the lower metal substrate 84, thereby avoiding affecting the temperature difference at both ends of the temperature difference power generation mechanism 8.

[0039] As a further implementation scheme of the above invention: a plurality of heat-conducting fins 813 are welded on the upper metal substrate 81 in a cross-distribution manner, and the portion of the heat-conducting fins 813 located on the outer side of the upper metal substrate 81 is fixedly connected with an insulating pad 814. A plurality of heat-conducting fins 813 are arranged on the upper metal substrate 81 on the side close to the human body, which can quickly transfer heat to the upper metal substrate 81, thereby increasing the temperature difference between the inner and outer ends of the temperature difference power generation mechanism 8 and increasing the power generation efficiency.

[0040] As a further implementation scheme of the above invention: the insulating pad 814 is against the pulse generator 1, the cross-sectional shape of the heat-conducting fin 813 along the long side is semicircular or rectangular, and the insulating pad 814 is arranged on the contact surface between the heat-conducting fin 813 and the pulse generator 1 to isolate the heat-conducting fin 813 from the pulse generator 1 and prevent the heat in the heat-conducting fin 813 from being transferred to the pulse generator 1.

[0041] As a further implementation scheme of the above invention: the upper metal substrate 81, the lower metal substrate 84, and the heat-conducting fin 813 are made of the same material as the outer side of the pulse generator 1, which is titanium alloy, to ensure the strength and thermal conductivity of the upper metal substrate 81 and the lower metal substrate 84, while making them have better biocompatibility.

[0042] In specific implementation: modern medicine has confirmed that there is a temperature difference in the human body, and the temperature gradually decreases from the body core to the body surface. The closer to the body surface, the greater the temperature difference. Existing thermoelectric power generation materials can be used to provide energy for the pacemaker; after assembling the various structures of the thermoelectric power generation mechanism 8, assemble the various structures of the thermoelectric power generation mechanism 8 in the installation cavity 7, and fix the upper metal substrate 81 and the lower metal substrate 84 on the pulse generator 1 by screws. When assembling the thermoelectric power generation mechanism 8, the connecting wire 812 is electrically connected to the control circuit board 5 in the pulse generator 1. At the same time, when assembling the thermoelectric power generation mechanism 8, the upper metal substrate 81 is installed on the pulse generator 1. The generator 1 is arranged on a side close to the inner core of the human body, and the lower metal substrate 84 is installed on a side of the pulse generator 1 close to the surface of the human body; the temperature difference power generation mechanism 8 is integrated in the middle of the pulse generator 1, which will not affect the shape and volume of the pulse generator 1, so the impact of the device on the human body during implantation is relatively small compared with the impact of the original pacemaker implantation on the human body; since the temperature difference power generation mechanism 8 is integrated with the pulse generator 1, the temperature difference power generation mechanism 8 can be installed in place synchronously when the pulse generator 1 is implanted; there is a temperature difference at both ends of the temperature difference power generation mechanism 8, and several P-type thermoelectric legs 87 and N-type thermoelectric legs 88 in the temperature difference power generation mechanism 8 are powered on The pole piece 83 and the lower electrode piece 86 are connected in series, and the temperature difference at both ends is used to generate electricity, and the generated electricity is transmitted to the control circuit board 5 along the connecting wire 812, and the generated electricity is stored by the storage battery 6. The control circuit board 5 can control whether the temperature difference power generation mechanism 8 generates electricity according to the storage amount of the storage battery 6; the temperature difference power generation mechanism 8 is integrated on the pulse generator 1, and the pulse generator 1 itself can be used as a barrier structure. At the same time, the insulation filler 89 and the insulation shell 810 inside the temperature difference power generation mechanism 8 are used for insulation to avoid heat transfer at both ends of the temperature difference power generation mechanism 8, thereby increasing the temperature at both ends of the temperature difference power generation mechanism 8. difference; a plurality of heat-conducting fins 813 are arranged on the upper metal substrate 81 close to the side of the human body, and an insulating pad 814 is used to block the heat-conducting fins 813 and the pulse generator 1, so as to quickly transfer the heat to the upper metal substrate 81, increase the temperature difference between the inner and outer ends of the temperature difference power generation mechanism 8, and increase the power generation efficiency; a heat-insulating ring 811 is arranged on the surrounding side of the upper metal substrate 81 and the lower metal substrate 84 to ensure the sealing between the temperature difference power generation mechanism 8 and the pulse generator 1, and at the same time avoid heat transfer between the pulse generator 1 and the upper metal substrate 81, the lower metal substrate 84, and avoid affecting the temperature difference at both ends of the temperature difference power generation mechanism 8.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A wireless charging device for a brain pacemaker, comprising a pulse generator (1), a connector (2) being arranged on the top of the pulse generator (1), an extension line (3) being fixedly connected to the connector (2), a deep electrode (4) being arranged at one end of the extension line (3) away from the connector (2), a control circuit board (5) and a storage battery (6) being arranged inside the pulse generator (1), characterized in that: The pulse generator (1) is provided with an installation cavity (7) in the middle thereof, and a temperature difference power generation mechanism (8) capable of generating electricity through temperature difference is arranged in the installation cavity (7); The temperature difference power generation mechanism (8) comprises an upper metal substrate (81) and a lower metal substrate (84) fixedly mounted on the pulse generator (1), an upper resin layer (82) fixedly mounted on the inner side of the upper metal substrate (81), a plurality of heat-conducting fins (813) arranged on the outer side of the upper metal substrate (81), a plurality of upper electrode sheets (83) embedded in the upper resin layer (82), a lower resin layer (85) fixedly mounted on the inner side of the lower metal substrate (84), and a plurality of lower electrode sheets (86) embedded in the lower resin layer (85), a plurality of P-type thermoelectric legs (87) and N-type thermoelectric legs (88) are arranged between the upper electrode sheets (83) and the lower electrode sheets (86), and two groups of connecting wires (812) are welded on the lower electrode sheets (86) of the lower metal substrate (84), and the connecting wires (812) are electrically connected to the control circuit board (5); The size of the temperature difference power generation mechanism (8) is compatible with the mounting cavity (7); the upper metal base plate (81) and the lower metal base plate (84) are both provided with mounting ears, and screws are inserted into the mounting ears; the upper metal base plate (81) and the lower metal base plate (84) are fixedly mounted on the pulse generator (1) by means of screws; A heat-insulating shell (810) is provided between the upper metal substrate (81) and the lower metal substrate (84), and the heat-insulating shell (810) is sleeved on the outside of the P-type thermoelectric leg (87) and the N-type thermoelectric leg (88), and the inside of the heat-insulating shell (810) is filled with a heat-insulating filler (89); The upper metal substrate (81) and the lower metal substrate (84) are both provided with heat-insulating collars (811) on their circumferential sides, and the exterior of the heat-insulating collars (811) abuts against the inner wall of the installation cavity (7); A plurality of the heat-conducting fin plates (813) are welded to the upper metal base plate (81) in a cross-distributed manner, and a portion of the heat-conducting fin plates (813) located outside the upper metal base plate (81) is fixedly connected to an isolation pad (814); The insulating pad (814) abuts against the pulse generator (1), and the cross-sectional shape of the heat-conducting fin plate (813) along the long side is semicircular or rectangular.

2. A brain pacemaker wireless charging device according to claim 1, characterized in that: One end of the connector (2) extends into the interior of the pulse generator (1) and is electrically connected to the control circuit board (5); a mounting cavity for cooperating with a storage battery (6) is provided inside the pulse generator (1); the storage battery (6) has an overall shape of a "C" letter, and the storage battery (6) is electrically connected to the control circuit board (5).

3. The wireless charging device for a brain pacemaker according to claim 1, characterized in that: The P-type thermoelectric legs (87), the N-type thermoelectric legs (88), the upper electrode sheet (83), and the lower electrode sheet (86) are fixed by welding, and a plurality of the P-type thermoelectric legs (87) and the N-type thermoelectric legs (88) are connected in series via the upper electrode sheet (83) and the lower electrode sheet (86).

4. The wireless charging device for a brain pacemaker according to claim 1, characterized in that: The upper metal substrate (81), the lower metal substrate (84), the heat-conducting fin plate (813) and the outer side of the pulse generator (1) are made of the same material, namely, titanium alloy.

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