CN109950941B - Charging method of implanted equipment and wireless energy transmission device - Google Patents
Charging method of implanted equipment and wireless energy transmission device Download PDFInfo
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Abstract
A method of charging an implanted device for wirelessly charging the implanted device in a body, comprising: step S100: acquiring the actual temperature and the body surface temperature in the implantation equipment in the body; step S200: obtaining a reference temperature range in the equipment according to the body surface temperature through the known body surface-temperature relation in the equipment; step S300: judging whether the actual temperature is within the reference temperature range, if so, determining temperature feedback data and turning to the step S400; if not, go to step S100; step S400: and obtaining a current charging adjusting parameter according to the relation between the temperature feedback data and the temperature expected value in the equipment, and adjusting the charging parameter according to the current charging adjusting parameter to carry out wireless charging. The method provided by the invention can effectively control overheating of the implanted device in the body during charging.
Description
Technical Field
The present invention relates to wireless charging/power supply systems, and more particularly, to a charging method and a wireless energy transmission device for an implant device.
Background
The implanted medical instrument is implanted in the body of a patient and is isolated from tissues such as skin and the like between the implanted medical instrument and the external charging device. Therefore, there is a need for charging implantable medical devices in the body using a wireless energy transfer system.
The external charging transmitting coil can generate heat in the wireless energy transmission process and transfer the heat to the skin at the charging position in a conduction mode. Meanwhile, a part of the emitted wireless energy is absorbed by human tissues and is converted into heat energy.
Implantable medical devices are typically sealed with biocompatible metallic titanium, while the implanted battery is typically housed within the implantable medical device encapsulated with metallic titanium. Because the titanium metal has the influence of eddy current effect and the like in the wireless energy transmission process, the heating of the in-vivo implanted medical instrument in the wireless energy transmission process is easily caused.
The temperature rise of the tissue surrounding the implanted medical device is the result of the combined action of the two heat sources inside and outside the body. Since the patient's perceived skin temperature is below the subcutaneous maximum temperature, it is easy to underestimate the risk of thermal injury, and it is therefore particularly necessary to detect and control the temperature of the most dangerous tissue to ensure the thermal safety of the patient, which is also critical to the safety of transcutaneous energy transfer.
However, the wireless energy transmission device in the prior art can only measure the temperature of the implanted medical instrument itself, and cannot measure the temperature of the tissue around the implanted medical instrument, so that the tissue temperature cannot be accurately fed back, the heating in the wireless energy transmission process cannot be controlled, and the safety of the human tissue cannot be fully guaranteed.
Disclosure of Invention
In view of the above, it is desirable to provide a charging method for an implant device and a wireless energy transmission apparatus, which can control heat generation of the implant device.
The technical scheme of the invention is as follows.
A method of charging an implanted device for wirelessly charging the implanted device in a body, comprising:
step S100: acquiring the actual temperature and the body surface temperature in the implantation equipment in the body;
step S200: obtaining a reference temperature range in the equipment according to the body surface temperature through the known body surface-temperature relation in the equipment;
step S300: judging whether the actual temperature is within the reference temperature range, if so, determining temperature feedback data and turning to the step S400; if not, go to step S100;
step S400: and obtaining a current charging adjusting parameter according to the relation between the temperature feedback data and the temperature expected value in the equipment, and adjusting the charging parameter according to the current charging adjusting parameter to carry out wireless charging.
The invention also provides a wireless energy transmission device for supplying electrical energy to an implanted apparatus in a body, comprising an internal body part and an external body part, wherein,
the in-vivo portion comprises:
a first temperature sensor for measuring a temperature within the apparatus;
an energy receiving device; and
an in-vivo communication device;
the in-vitro portion includes:
a second temperature sensor for measuring a body surface temperature of skin corresponding to and/or adjacent to the device;
an energy transmitting device for transmitting energy to the energy receiving device;
an extracorporeal communication device; and
a processor coupled to and capable of performing the steps of:
receiving data of temperature within the device and the body surface temperature;
determining a reference temperature range in the equipment according to the body surface temperature;
judging whether the temperature in the equipment is in the reference temperature range or not, if so, determining temperature feedback data according to the received data and executing a feedback regulation step; if not, the received data is ignored.
According to the technical scheme, the implant equipment charging method and the wireless energy transmission device provided by the invention have the advantages that the specific charging parameters are controlled by taking the temperature in the instrument and the body surface temperature as the substitute indexes of the tissue temperature, so that the specific charging amount is controlled, and the overheating of the implant equipment in the body during charging can be effectively controlled.
Drawings
FIG. 1 is a flow diagram of a charge control method of an embodiment;
fig. 2 is a flowchart of steps of the control device controlling the charging parameter for starting charging if the temperature feedback is lower than the desired temperature value in the apparatus in the charging control method according to the embodiment;
FIG. 3 is a diagram of the temperature range in the apparatus obtained by knowing the temperature relationship in the in-vitro apparatus according to the body surface temperature in the charging control method according to the embodiment;
fig. 4 is a schematic structural diagram of a wireless energy transmission device according to an embodiment;
fig. 5 is a schematic structural diagram of a wireless energy transmission device according to another embodiment.
Description of the main elements
Wireless energy transfer device 10
Energy receiving device 120
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a method for charging an implant device, which is used to wirelessly charge the implant device in a body. The method comprises the following steps:
step S100: actual temperature and body surface temperature within the implanted device in vivo are obtained.
In particular, the implant device is an implantable medical apparatus. The actual temperature within the implanted device is the actual temperature within the implanted medical instrument in vivo. The body surface temperature is a certain distance away from the skin surface or a temperature close to the body surface.
Step S200: and obtaining a reference temperature range in the equipment according to the body surface temperature by knowing the body surface-temperature relation in the equipment.
Specifically, each specific body surface temperature corresponds to a corresponding intra-device reference temperature range, based on a known body surface-intra-device temperature relationship. Thus, based on the body surface temperature, a reference temperature range within the device can be obtained.
Step S300: judging whether the actual temperature is within the reference temperature range, if so, determining temperature feedback data and turning to the step S400; if not, go to step S100.
Specifically, it is determined whether the actual temperature in the device obtained in step S100 is within the reference temperature range in the device, and if the actual temperature is within the reference temperature range, temperature feedback data is output and step S400 is continued. And if the actual temperature is not in the reference temperature range, returning to the step S100, and continuously acquiring the actual temperature and the body surface temperature in the implanted device in the body. In one embodiment, the temperature feedback data is an actual temperature within the implanted device.
Step S400: and obtaining a current charging adjusting parameter according to the relation between the temperature feedback data and the temperature expected value in the equipment, and adjusting to carry out wireless charging according to the current charging adjusting parameter.
Specifically, the current charging adjustment parameter is obtained according to the relationship between the temperature feedback data and the desired temperature value in the device. And adjusting the charging parameters according to the current charging adjustment parameters. And if the temperature feedback data is equal to the expected temperature value in the equipment, not starting parameter adjustment. In one embodiment, the desired temperature is any value between 37 ℃ and 41 ℃. In one embodiment, the wireless charging is transcutaneous electromagnetic coupling charging, and the charging parameters include a transmission frequency and an inductance.
In the charging method provided by this embodiment, the reference temperature range is obtained according to the known body surface-device internal temperature relationship by the body surface temperature, and if the actual temperature in the device is within the reference temperature range. And further judging, and if the temperature feedback is lower or higher than the expected temperature value in the instrument, adjusting the charging parameters for charging. Therefore, the charging method can more effectively control the overheating of the implanted device in the body during charging.
Referring to FIG. 2, in one embodiment, the body surface-to-device temperature relationship is:
y＝a*x+b，
wherein a and b are constants, a is more than or equal to 0.7 and less than or equal to 0.9, b is more than or equal to 7 and less than or equal to 9, x is the body surface temperature, and y is the characteristic value of the temperature in the equipment. The reference temperature range in the equipment is subjected to plus-minus deviation preset values by taking the temperature characteristic value in the equipment as a reference. In one embodiment, the deviation is a predetermined value of 1%.
Referring to fig. 3, in one embodiment, step S400 includes:
step S410: obtaining a difference value between the temperature feedback data and the temperature expected value;
step S420: obtaining a charging adjustment parameter through Proportional Integral (PI) adjustment according to the difference value;
step S430: determining the current charging parameters according to the charging adjustment parameters;
step S440: and carrying out wireless charging according to the current charging parameters.
Specifically, if the temperature feedback data is lower or higher than the desired temperature value in the equipment, the temperature feedback data is adjusted to be when
And the former charging parameters are wirelessly charged. In one embodiment the charging parameters include a transmit frequency and an inductance. And obtaining a charging parameter with the optimal charging efficiency by adjusting the transmitting frequency and the inductance. Thereby enabling optimal control of the charging of the implanted device. Thereby minimizing the problem of overheating of the implanted device in the body due to inefficient charging. And obtaining a charging adjustment parameter through Proportional Integral (PI) adjustment according to the difference value. And determining the current charging parameters according to the charging adjustment parameters. And charging according to the current charging parameters.
In one embodiment, the Proportional Integral (PI) adjustment obtains a charge adjustment parameter according to the following equation:
wherein C (t) is a charge regulation parameter, KpAnd T1And e (t) is the difference value, and t is the sampling end time. Related parameter KpAnd T1Different parameters may be selected depending on the charging parameters.
Referring to fig. 4, the embodiment of the present invention further provides a wireless energy transmission device 10 for supplying electric energy to the implantation apparatus 100, which includes an internal body part and an external body part. The implant device 100 may include a cardiac pacemaker, a brain pacemaker, a muscle stimulator, a neurostimulator, a cochlear implant, or the like.
The in-vivo portion comprises: a first temperature sensor 110, an energy receiving device 120 and an in-vivo communication device 130. The first temperature sensor 110 is used to measure the actual temperature within the implanted device 100 in the body. The first temperature sensor 110 is disposed within the implant device 100 in vivo. The energy receiving means 120 and the intracorporeal communication means 130 may be provided within the implant device 100 or may be provided outside the implant device 100 or partially embedded outside.
The in-vitro portion includes: a second temperature sensor 210, an energy emitting device 220, an extracorporeal communication device 230, and a processor 240. The second temperature sensor 210 is used to measure the body surface temperature of the skin corresponding to and/or adjacent to the implanted device 100 in the body. The energy emitting device 220 is used for transmitting energy to the energy receiving device 120. The energy emitting device 220 is in energy connection with the energy receiving device 120. A processor 240 establishing a data connection with said first temperature sensor 110 via said in-vivo communication device 130 and said second temperature sensor 210, and being capable of performing the steps of:
receiving data of temperature within the device and the body surface temperature;
determining a reference temperature range in the equipment according to the body surface temperature;
judging whether the temperature in the equipment is in the reference temperature range or not, if so, determining temperature feedback data according to the received data and executing a feedback regulation step; if not, the received data is ignored.
Specifically, the implant device 100 releases heat when charged. The first temperature sensor 110 detects the temperature within the implant device 100. The second temperature sensor 210 measures a body surface temperature of skin corresponding to and/or adjacent to the implanted device 100 within the body. The first temperature sensor 110 establishes a data connection with the in-vivo communication device 130. The first temperature sensor 110 transmits the detected temperature within the implanted device 100 to the in-vivo communication device 130. The in-vivo communication device 130 and the external communication device 230 establish a data connection, and the in-vivo communication device 130 and the external communication device 230 can transmit data unidirectionally or mutually. The external communication device 230 establishes a data connection with the processor 240, and the external communication device 230 may transmit data obtained from the internal communication device 130 to the processor 240. The second temperature sensor 210 may have a data connection established directly with the processor 240. The second temperature sensor 210 may transmit the detected body surface temperature to the processor 240. Thereby enabling the processor 240 to establish a data connection with the first temperature sensor 110 and the second temperature sensor 210. The processor 240 determines whether the temperature in the implant device 100 is within the reference temperature range according to the received data of the temperature in the implant device 100 and the body surface temperature, and if so, determines temperature feedback data according to the received data and performs a feedback adjustment step; if not, the received data is ignored. The temperature of the implant device 100 can be effectively controlled to prevent damage from overheating the implant device 100.
In one embodiment, the processor 240 determines the reference temperature range within the device according to the following steps:
determining a temperature characteristic value y-a x + b in the device,
wherein a and b are constants, a is more than or equal to 0.7 and less than or equal to 0.9, b is more than or equal to 7 and less than or equal to 9, x is the body surface temperature, and y is the characteristic value of the temperature in the equipment;
the reference temperature range in the equipment is a positive and negative deviation preset value based on the temperature characteristic value in the equipment.
Specifically, the reference temperature range within the implant device 100 should be greater than or equal to the difference between the temperature characteristic and the predetermined value, and less than or equal to the sum of the temperature characteristic and the predetermined value.
In one embodiment the energy transmission device 220 transmits energy with the energy receiving device 120 by electromagnetic coupling. The energy emitting device 220 is electrically connected to the processor 240, and the processor 240 is capable of controlling the emission parameters of the energy emitting device 220.
Specifically, the electromagnetic coupling may transmit energy by energy transmission between the energy emitting device 220 and the energy receiving device 120 through a transcutaneous wireless communication connection. The processor 240 may control the emission parameters of the energy emitting device 220 based on the received data of the temperature in the implantation apparatus 100 and the body surface temperature. The transmission parameters may include transmission frequency, inductance, and the like.
Referring to fig. 5, in one embodiment, the internal body portion further comprises: a voltage sensor 140, which is connected to the processor 240 in a data manner, is used to measure the coupling voltage of the energy receiving device 120 and to transmit the voltage to the processor 240. The intracorporeal portion further comprises: a current sensor 150, which is connected to the processor 240 in a data manner, is used to measure the coupling current of the energy receiving device 120 and to transmit the current to the processor 240. A processor 240 of the extracorporeal portion performs a feedback adjustment step using the data of the coupling voltage and the coupling current.
Specifically, the voltage sensor 140 is electrically connected to the in-vivo communication device 130, and the voltage sensor 140 transmits the measured coupling voltage to the in-vivo communication device 130. The current sensor 150 is also electrically connected to the in-vivo communication device 130, and the current sensor 150 transmits the measured coupling current to the in-vivo communication device 130. The in-vivo communication device 130 transmits the coupling voltage and the coupling current to the processor 240 via the in-vitro communication device 230. The voltage sensor 140 and the current sensor 150 may be respectively disposed within the energy-receiving device 120.
The operation of the wireless energy transmission device 10 will be described with reference to fig. 5 as an example.
The first temperature sensor 110 measures the actual temperature within the implant device 100. And the second temperature sensor 210 measures the body surface temperature outside the skin surface. The actual temperature within the implanted device 100 and the body surface temperature are fed back to the processor 240. The body surface temperature corresponds to a corresponding reference temperature range within the implant device 100, based on a known body surface-to-device temperature relationship. It is determined whether the actual temperature within the device measured by the first temperature sensor 110 is within the reference temperature range. And if the actual temperature in the equipment is not in the reference temperature range, not outputting temperature feedback. If the actual temperature in the device is within the reference temperature range, the output temperature is fed back to the processor 240. The voltage sensor 140 transmits the measured coupling voltage to the in-vivo communication device 130. The current sensor 150 transmits the measured coupling current to the in-vivo communication device 130. The in-vivo communication device 130 transmits the coupling voltage and the coupling current to the processor 240 via the in-vitro communication device 230. The processor 240 adjusts and outputs specific optimal charging parameters according to the specific parameters of the temperature feedback, the coupling voltage and the coupling current, so as to obtain the charging parameters with the optimal charging efficiency. This regulation is automatically achieved by PI regulation. Thereby enabling optimal control of the charging of the implanted device 100. Thereby minimizing the problem of overheating of the implant device 100 in vivo due to inefficient charging.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and it is more specific and detailed as the description thereof, but it should not be understood that the invention claims are limited thereby. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of charging an implanted device for wirelessly charging the implanted device in a body, comprising:
step S100: acquiring the actual temperature and the body surface temperature in the implantation equipment in the body;
step S200: obtaining a reference temperature range in the equipment according to the body surface temperature through the known body surface-temperature relation in the equipment;
step S300: judging whether the actual temperature is within the reference temperature range, if so, determining temperature feedback data and turning to the step S400; if not, go to step S100;
step S400: obtaining a current charging adjusting parameter according to the relation between the temperature feedback data and a temperature expected value in the equipment, and adjusting the charging parameter according to the current charging adjusting parameter to carry out wireless charging;
the body surface-temperature inside the equipment is as follows: y-a x + b,
wherein a and b are constants, a is more than or equal to 0.7 and less than or equal to 0.9, b is more than or equal to 7 and less than or equal to 9, x is the body surface temperature, and y is the characteristic value of the temperature in the equipment;
the reference temperature range in the equipment is a positive and negative deviation preset value based on the characteristic value of the temperature in the equipment.
2. A charging method according to claim 1, wherein the deviation predetermined value is 1%.
3. The method of charging of claim 1, wherein the temperature feedback data is an actual temperature within the implanted device.
4. The charging method according to claim 1, wherein the step S400 further comprises:
step S410: obtaining a difference value between the temperature feedback data and the temperature expected value;
step S420: obtaining a charging adjustment parameter through Proportional Integral (PI) adjustment according to the difference value;
step S430: determining the current charging parameters according to the charging adjustment parameters;
step S440: and carrying out wireless charging according to the current charging parameters.
5. A charging method according to claim 4, characterized in that said proportional-integral (PI) regulation obtains a charge regulation parameter according to the following formula:
wherein C (t) is a charge regulation parameter, KpAnd T1And adjusting the relevant parameters for proportional integral, wherein e (t) is the difference value, and t is the sampling end moment.
6. The charging method according to any one of claims 1 to 5, wherein the wireless charging is transcutaneous electromagnetic coupling charging, and the charging parameters include a transmission frequency and an inductance.
7. The charging method of any of claims 1-5, wherein the implant device comprises
A cardiac pacemaker, a brain pacemaker, a muscle stimulator, a neurostimulator, or a cochlear implant.
8. A wireless energy transmission device for supplying electrical energy to an implanted apparatus in a body, comprising an internal body part and an external body part,
the in-vivo portion comprises:
a first temperature sensor for measuring a temperature within the apparatus;
an energy receiving device; and
an in-vivo communication device;
the in-vitro portion includes:
a second temperature sensor for measuring a body surface temperature of skin corresponding to and/or adjacent to the device;
an energy transmitting device for transmitting energy to the energy receiving device;
an extracorporeal communication device; and
a processor coupled to and capable of performing the steps of:
receiving data of temperature within the device and the body surface temperature;
determining a reference temperature range in the equipment according to the body surface temperature;
judging whether the temperature in the equipment is in the reference temperature range or not, if so, determining temperature feedback data according to the received data and executing a feedback regulation step; if not, ignoring the received data;
the processor determines a reference temperature range within the device according to the following steps:
determining a temperature characteristic value y-a x + b in the device,
wherein a and b are constants, a is more than or equal to 0.7 and less than or equal to 0.9, b is more than or equal to 7 and less than or equal to 9, x is the body surface temperature, and y is the characteristic value of the temperature in the equipment;
the reference temperature range in the equipment is a positive and negative deviation preset value based on the temperature characteristic value in the equipment.
9. The wireless energy transmission device according to claim 8, wherein the energy transmission device transmits energy with the energy reception device through electromagnetic coupling;
the energy emitting device is electrically connected with the processor, and the processor can control the emitting parameters of the energy emitting device.
10. The wireless energy transfer apparatus of claim 9, wherein the internal body portion further comprises:
the voltage sensor is connected with the processor in a data mode and used for measuring the coupling voltage of the energy receiving device;
the current sensor is connected with the processor in a data mode and used for measuring the coupling current of the energy receiving device and transmitting the current to the processor;
a processor of the extracorporeal portion performs a feedback adjustment step using the data of the coupling voltage and the coupling current.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103748763A (en) * | 2011-05-27 | 2014-04-23 | 爱飞纽医疗机械贸易有限公司 | Implantable medical device and power controlling method thereof |
| US20150321015A1 (en) * | 2003-10-02 | 2015-11-12 | Medtronic, Inc. | Inductively rechargeable external energy source, charger, system and method for a transcutaneous inductive charger for an implantable medical device |
| CN105375596A (en) * | 2015-08-03 | 2016-03-02 | 北京品驰医疗设备有限公司 | Percutaneous wireless charging device with multi-closed-loop temperature control and protection function |
| CN107332320A (en) * | 2017-09-01 | 2017-11-07 | 清华大学 | Percutaneous wireless charging system and method with charging current automatic adjusument function |
| CN107408827A (en) * | 2015-08-21 | 2017-11-28 | 株式会社Lg化学 | For the apparatus and method for the charge condition for adjusting secondary cell |
-
2017
- 2017-12-20 CN CN201711387638.5A patent/CN109950941B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150321015A1 (en) * | 2003-10-02 | 2015-11-12 | Medtronic, Inc. | Inductively rechargeable external energy source, charger, system and method for a transcutaneous inductive charger for an implantable medical device |
| CN103748763A (en) * | 2011-05-27 | 2014-04-23 | 爱飞纽医疗机械贸易有限公司 | Implantable medical device and power controlling method thereof |
| CN105375596A (en) * | 2015-08-03 | 2016-03-02 | 北京品驰医疗设备有限公司 | Percutaneous wireless charging device with multi-closed-loop temperature control and protection function |
| CN107408827A (en) * | 2015-08-21 | 2017-11-28 | 株式会社Lg化学 | For the apparatus and method for the charge condition for adjusting secondary cell |
| CN107332320A (en) * | 2017-09-01 | 2017-11-07 | 清华大学 | Percutaneous wireless charging system and method with charging current automatic adjusument function |
Non-Patent Citations (4)
| Title |
|---|
| An Device Case Temperature Closed-loop Control System During Burn-in Test;Qingfeng Li, Shaobo Chen;《The Proceedings of 2011 9th International Conference on Reliability, Maintainability and Safety》;20110812;全文 * |
| ＰＥＭ 老炼过程中的温度闭环控制系统;白冰;《清华大学学报（自然科学版）》;20161231;第56卷(第3期);正文第295页第1栏第1段-第296页第2栏第5段，图1-5 * |
| 植入式微型医疗器械供电方法研究;韦晓娟;《中国优秀硕士学位论文全文数据库》;20081015;C030-24 * |
| 用于植入式医疗仪器的无线通信系统研究;王伟明;《中国生物医学工程学报》;20090630;第28卷(第3期);全文 * |
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