An all-round long-distance wireless charging device for cardiac pacemakers

Abstract

The present invention relates to an all-round long-distance wireless charging device for a cardiac pacemaker, which transmits energy through radio frequency electromagnetic waves to achieve energy transmission within a range of 0-4.5 meters, can perform long-distance and all-round charging for a pacemaker, and improves the distance of energy transmission; wherein a radio frequency wireless power transmitting device designed with a hemispherical base can achieve coverage of radio frequency electromagnetic waves for each angle of a set area, thereby achieving radio frequency electromagnetic wave charging of a high-frequency wireless induction charging device at any position in the set area, removing the constraint that the original energy receiving unit and the transmitting unit need to maintain a fixed position relationship, making the charging method of the pacemaker more convenient, so that the pacemaker user is not affected by the charging operation and his own activities, thereby extending the charging time, reducing the energy transmission power, and being more conducive to the miniaturization of the energy transmitting unit and the receiving unit, and being conducive to the integrated design of the pacemaker and the charging unit, thereby reducing the equipment cost.

Description

Technical Field

[0001] The invention relates to an omnidirectional long-distance wireless charging device for a cardiac pacemaker, belonging to the technical field of wireless charging. Background Art

[0002] A pacemaker is an electronic therapeutic device implanted in the body. It generates electrical pulses through a pulse generator, which are conducted through the wire electrodes to stimulate the myocardium in contact with the electrodes, causing the heart to become excited and contracted, thereby achieving the purpose of treating cardiac dysfunction caused by certain arrhythmias. The energy of electrical pulses comes from batteries placed in the body, so after a certain number of years of use, the batteries must be replaced to continue to provide electrical pulse energy.

[0003] In order to solve the problem of replacing pacemaker batteries, many researchers have proposed a solution for wireless charging of pacemaker batteries. However, due to the limitations of the development of wireless charging technology, the proposed solution mainly adopts the traditional electromagnetic energy conversion method, that is, the energy transmitting unit and the receiving unit are each equipped with a coil, and the antenna of the receiving unit senses the changing magnetic field and generates an induced electromotive force. After filtering, voltage stabilization and other processing, the battery can be charged. However, these charging schemes are all near-field charging. During charging, the energy receiving unit must be close to the energy transmitting unit, and changes in the plane of the receiving unit coil will also affect the effect of energy reception. This limits the user to maintain a fixed position relationship with the energy transmitting unit during charging, limiting the user's freedom. Moreover, due to the existence of the receiving coil of the energy receiving unit, the miniaturization of the device cannot be achieved. Miniaturized far-field wireless charging pacemakers that allow users to move freely during charging are more in line with market demand. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an omnidirectional long-distance wireless charging device for a cardiac pacemaker, which transmits energy through radio frequency electromagnetic waves and can realize long-distance and omnidirectional charging of the pacemaker.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: the present invention designs an omnidirectional long-distance wireless charging device for cardiac pacemakers, including a radio frequency wireless power transmitting device and a high-frequency wireless induction charging device placed in the cardiac pacemaker;

[0006] The radio frequency wireless power transmitting device includes an industrial frequency power supply, a high frequency current modulation, a hemispherical base, and at least two radio frequency electromagnetic wave transmitting antennas, each of which is distributed on the spherical surface of the hemispherical base, the output end of the industrial frequency power supply is connected to the input end of the high frequency current modulation, the industrial frequency power supply and the high frequency current modulation are fixedly arranged in the hemispherical base, each of the radio frequency electromagnetic wave transmitting antennas is respectively connected to the output end of the high frequency current modulation, the bottom surface position of the hemispherical base is fixedly arranged, each of the radio frequency electromagnetic wave transmitting antennas works, and the radio frequency electromagnetic waves emitted by them jointly cover the set area;

[0007] The high-frequency wireless induction charging device includes a radio frequency electromagnetic wave receiving antenna and a high-frequency current conditioner. The radio frequency electromagnetic wave receiving antenna is a magnetic induction coil structure. The radio frequency electromagnetic wave receiving antenna is connected to the input end of the high-frequency current conditioner. The output end of the high-frequency current conditioner is connected to the battery of the pacemaker. When the high-frequency wireless induction charging device and the pacemaker are located in the area where the radio frequency wireless power transmitting device is set, the radio frequency electromagnetic wave receiving antenna generates electrical energy under the action of the radio frequency electromagnetic waves emitted by the radio frequency wireless power transmitting device, and supplies power to the battery of the pacemaker through high-frequency current conditioning.

[0008] As a preferred technical solution of the present invention: the radio frequency wireless power transmitting device also includes at least two control switches, the hemispherical base spherical surface array is divided into various array areas, the number of control switches is equal to the number of array areas on the spherical surface of the hemispherical base, and each control switch corresponds one-to-one to each array area on the spherical surface of the hemispherical base, and the radio frequency electromagnetic wave transmitting antenna in each array area on the spherical surface of the hemispherical base is connected to the high-frequency current modulation through the corresponding control switch, and the radio frequency electromagnetic wave transmitting antenna in each array area on the spherical surface of the hemispherical base emits radio frequency electromagnetic waves under the control of the connected control switch.

[0009] As a preferred technical solution of the present invention: the RF wireless power transmitting device also includes at least two power transmission detection units, the number of the power transmission detection units is equal to the number of array areas on the spherical surface of the hemispherical base, and each power transmission detection unit corresponds one-to-one to each array area on the spherical surface of the hemispherical base, each power transmission detection unit is respectively connected to the RF electromagnetic wave transmitting antenna in the corresponding array area on the spherical surface of the hemispherical base, each power transmission detection unit is used to detect whether the connected RF electromagnetic wave transmitting antenna has a resonant output, and the feedback end of each power transmission detection unit is respectively connected to the high-frequency current modulation, and the high-frequency current modulation is used to improve the transmission power of the connected RF electromagnetic wave transmitting antenna with a resonant output.

[0010] As a preferred technical solution of the present invention: the radio frequency electromagnetic wave receiving antenna in the high-frequency wireless induction charging device is manufactured in a PCB plane to obtain a magnetic induction coil structure.

[0011] As a preferred technical solution of the present invention: the hemispherical base in the radio frequency wireless power transmitting device is suspended above the set area with its bottom surface facing upward; or is arranged on the wall of the set area with its bottom surface facing the wall, and the spherical surface of the hemispherical base faces the activity space of the pacemaker.

[0012] As a preferred technical solution of the present invention: each radio frequency electromagnetic wave transmitting antenna works and emits radio frequency electromagnetic waves in a frequency band between 850 MHz and 950 MHz.

[0013] As a preferred technical solution of the present invention: each of the radio frequency electromagnetic wave transmitting antennas is a radio frequency electromagnetic wave transmitting antenna array.

[0014] The omnidirectional long-distance wireless charging device for cardiac pacemakers described in the present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0015] The omnidirectional long-distance wireless charging device designed for cardiac pacemakers by the present invention transfers energy through radio frequency electromagnetic waves to achieve energy transmission within the range of 0-4.5 meters, and can perform long-distance and omnidirectional charging for pacemakers, thereby increasing the distance of energy transmission; wherein the radio frequency wireless power transmitting device designed with a hemispherical base can achieve coverage of radio frequency electromagnetic waves for each angle of the set area, thereby achieving radio frequency electromagnetic wave charging of the high-frequency wireless induction charging device at any position in the set area, removing the constraint that the original energy receiving unit and the transmitting unit need to maintain a fixed position relationship, making the charging method of the pacemaker more convenient, so that the pacemaker user is not affected by the charging operation and his own activities, thereby extending the charging time and reducing the energy transmission power, which is more conducive to the miniaturization of the energy transmitting unit and the receiving unit, and is conducive to the integrated design of the pacemaker and the charging unit, thereby reducing the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a module of an all-round long-distance wireless charging device for a cardiac pacemaker designed by the present invention;

[0017] Figure 2a It is a top view of a hemispherical base in an all-round long-distance wireless charging device for cardiac pacemakers designed by the present invention;

[0018] Figure 2b It is a side view of a hemispherical base in an all-round long-distance wireless charging device for cardiac pacemakers designed by the present invention;

[0019] Figure 3It is an application schematic diagram of the omnidirectional long-distance wireless charging device designed for cardiac pacemakers according to the present invention. DETAILED DESCRIPTION

[0020] The specific implementation modes of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] The present invention designs an omnidirectional long-distance wireless charging device for a cardiac pacemaker, comprising a radio frequency wireless power transmitting device and a high-frequency wireless induction charging device placed in the cardiac pacemaker.

[0022] Among them, Figure 1 As shown, the RF wireless power transmitting device includes an industrial frequency power supply, a high frequency current modulation, a hemispherical base, and at least two RF electromagnetic wave transmitting antennas, each of which is distributed on the spherical surface of the hemispherical base, the output end of the industrial frequency power supply is connected to the input end of the high frequency current modulation, the industrial frequency power supply and the high frequency current modulation are fixedly arranged in the hemispherical base, each of the RF electromagnetic wave transmitting antennas is respectively connected to the output end of the high frequency current modulation, the bottom surface position of the hemispherical base is fixedly arranged, each of the RF electromagnetic wave transmitting antennas works, and the RF electromagnetic waves emitted by them jointly cover the set area. In actual applications, the hemispherical base is as shown in FIG. Figure 2a and Figure 2b shown.

[0023] In actual applications, the RF wireless power transmitting device also includes at least two control switches and at least two power transmission detection units. The spherical surface array of the hemispherical base is divided into various array areas. The number of control switches is equal to the number of array areas on the spherical surface of the hemispherical base, and each control switch corresponds one-to-one to each array area on the spherical surface of the hemispherical base. The RF electromagnetic wave transmitting antenna in each array area on the spherical surface of the hemispherical base is connected to the high-frequency current modulation through the corresponding control switch, and the RF electromagnetic wave transmitting antenna in each array area on the spherical surface of the hemispherical base emits RF electromagnetic waves under the control of the connected control switch.

[0024] The number of power transmission detection units is equal to the number of array areas on the spherical surface of the hemispherical base, and each power transmission detection unit corresponds to each array area on the spherical surface of the hemispherical base one by one. Each power transmission detection unit is connected to the radio frequency electromagnetic wave transmitting antenna in the corresponding array area on the spherical surface of the hemispherical base. Each power transmission detection unit is used to detect whether the connected radio frequency electromagnetic wave transmitting antenna has a resonant output. The feedback end of each power transmission detection unit is respectively connected to the high-frequency current modulation. The high-frequency current modulation is used to improve the transmission power of the connected radio frequency electromagnetic wave transmitting antenna with a resonant output.

[0025] The high-frequency wireless induction charging device includes a radio frequency electromagnetic wave receiving antenna and a high-frequency current conditioner. The radio frequency electromagnetic wave receiving antenna is a magnetic induction coil structure. The radio frequency electromagnetic wave receiving antenna is connected to the input end of the high-frequency current conditioner. The output end of the high-frequency current conditioner is connected to the battery of the pacemaker. When the high-frequency wireless induction charging device and the pacemaker are located in the area where the radio frequency wireless power transmitting device is set, the radio frequency electromagnetic wave receiving antenna generates electrical energy under the action of the radio frequency electromagnetic waves emitted by the radio frequency wireless power transmitting device, and supplies power to the battery of the pacemaker through high-frequency current conditioning.

[0026] The above technical solution is designed for an all-round long-distance wireless charging device for cardiac pacemakers. In actual application, the radio frequency electromagnetic wave receiving antenna in the high-frequency wireless induction charging device is made in a PCB plane to obtain a magnetic induction coil structure; each radio frequency electromagnetic wave transmitting antenna is a radio frequency electromagnetic wave transmitting antenna array.

[0027] And in real-time application, such as Figure 3 As shown, the hemispherical base in the radio frequency wireless power transmitting device is suspended above the set area with its bottom surface facing upward, such as the position shown by mark 2; or it is set on the wall of the set area with its bottom surface facing the wall, and the spherical surface of the hemispherical base faces the activity space of the pacemaker, such as the positions shown by marks 1 and marks 3-5; the user of the pacemaker can move anywhere in the room, such as the positions shown by marks 6-8. Each radio frequency electromagnetic wave transmitting antenna works and emits radio frequency electromagnetic waves with a frequency band between 850 MHz and 950 MHz. In actual implementation, each radio frequency electromagnetic wave transmitting antenna works and emits radio frequency electromagnetic waves that jointly cover the set area. People with pacemakers only need to move in the area covered by the radio frequency electromagnetic waves to achieve wireless charging. In addition, the design of each power transmission detection unit is introduced, and each power transmission detection unit is respectively connected to the radio frequency electromagnetic wave transmitting antenna in the corresponding array area on the spherical surface of the hemispherical base. When the radio frequency electromagnetic wave transmitting antenna in a certain array area on the spherical surface of the hemispherical base works and wireless charging is performed for the pacemaker, the power transmission detection unit connected to the radio frequency electromagnetic wave transmitting antenna in the array area can detect that the radio frequency electromagnetic wave transmitting antenna has a resonant output, and the power transmission detection unit sends the feedback to the high-frequency current modulation, and the high-frequency current modulation increases the transmission power of the radio frequency electromagnetic wave transmitting antenna with the resonant output, thereby further improving the wireless charging efficiency of the pacemaker at this time.

[0028] The all-round long-distance wireless charging device for cardiac pacemakers designed by the above technical solution transmits energy through radio frequency electromagnetic waves to achieve energy transmission within the range of 0-4.5 meters. It can perform long-distance and all-round charging for pacemakers, thereby increasing the distance of energy transmission; wherein the radio frequency wireless power transmitting device designed with a hemispherical base can achieve radio frequency electromagnetic wave coverage at all angles of the set area, thereby achieving radio frequency electromagnetic wave charging of the high-frequency wireless induction charging device at any position in the set area, removing the constraint that the original energy receiving unit and the transmitting unit need to maintain a fixed position relationship, making the charging method of the pacemaker more convenient, so that the pacemaker user is not affected by the charging operation and his own activities, thereby extending the charging time and reducing the energy transmission power, which is more conducive to the miniaturization of the energy transmitting unit and the receiving unit, and is conducive to the integrated design of the pacemaker and the charging unit, thereby reducing the equipment cost.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An omnidirectional long-distance wireless charging device for a cardiac pacemaker, characterized in that: It includes a radio frequency wireless power transmitting device and a high frequency wireless inductive charging device placed in a pacemaker; The radio frequency wireless power transmitting device includes an industrial frequency power supply, a high frequency current modulation, a hemispherical base, and at least two radio frequency electromagnetic wave transmitting antennas, each of which is distributed on the spherical surface of the hemispherical base, the output end of the industrial frequency power supply is connected to the input end of the high frequency current modulation, the industrial frequency power supply and the high frequency current modulation are fixedly arranged in the hemispherical base, each of the radio frequency electromagnetic wave transmitting antennas is respectively connected to the output end of the high frequency current modulation, the bottom surface position of the hemispherical base is fixedly arranged, and the radio frequency electromagnetic waves emitted by each of the radio frequency electromagnetic wave transmitting antennas jointly cover the set area; The high-frequency wireless induction charging device includes a radio frequency electromagnetic wave receiving antenna and a high-frequency current conditioning device. The radio frequency electromagnetic wave receiving antenna is a magnetic induction coil structure. The radio frequency electromagnetic wave receiving antenna is connected to the input end of the high-frequency current conditioning device. The output end of the high-frequency current conditioning device is connected to the battery of the pacemaker. When the high-frequency wireless induction charging device and the pacemaker are located in the area where the radio frequency wireless power transmitting device is set, the radio frequency electromagnetic wave receiving antenna generates electric energy under the action of the radio frequency electromagnetic wave emitted by the radio frequency wireless power transmitting device, and supplies power to the battery of the pacemaker through the high-frequency current conditioning. The radio frequency wireless power transmitting device also includes at least two control switches, the hemispherical base spherical surface array is divided into various array areas, the number of control switches is equal to the number of array areas on the hemispherical base spherical surface, and each control switch corresponds to each array area on the hemispherical base spherical surface one by one, the radio frequency electromagnetic wave transmitting antenna in each array area on the hemispherical base spherical surface is connected to the high-frequency current modulation via the corresponding control switch, and the radio frequency electromagnetic wave transmitting antenna in each array area on the hemispherical base spherical surface emits radio frequency electromagnetic waves under the control of the connected control switch; The radio frequency wireless power transmitting device also includes at least two power transmission detection units, the number of the power transmission detection units is equal to the number of array areas on the spherical surface of the hemispherical base, and each power transmission detection unit corresponds to each array area on the spherical surface of the hemispherical base one by one, each power transmission detection unit is respectively connected to the radio frequency electromagnetic wave transmitting antenna in the corresponding array area on the spherical surface of the hemispherical base, each power transmission detection unit is used to detect whether the connected radio frequency electromagnetic wave transmitting antenna has a resonant output, and the feedback end of each power transmission detection unit is respectively connected to the high-frequency current modulation, and the high-frequency current modulation is used to improve the transmission power of the connected radio frequency electromagnetic wave transmitting antenna with a resonant output; Each radio frequency electromagnetic wave transmitting antenna is a radio frequency electromagnetic wave transmitting antenna array.

2. According to claim 1, an omnidirectional long-distance wireless charging device for a cardiac pacemaker, characterized in that: The radio frequency electromagnetic wave receiving antenna in the high-frequency wireless induction charging device is manufactured in a PCB plane to obtain a magnetic induction coil structure.

3. The omnidirectional long-distance wireless charging device for a cardiac pacemaker according to claim 1, characterized in that: The hemispherical base in the radio frequency wireless power transmitting device is suspended above the set area with its bottom surface facing upward; or is set on the wall of the set area with its bottom surface facing the wall, and the spherical surface of the hemispherical base faces the activity space of the pacemaker.

4. The omnidirectional long-distance wireless charging device for a cardiac pacemaker according to claim 1, characterized in that: The frequency band of the radio frequency electromagnetic waves emitted by each radio frequency electromagnetic wave transmitting antenna is between 850 MHz and 950 MHz.

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