CN106684983A - An implanted device battery management system - Google Patents

Abstract

The invention discloses an implant device battery management system comprising an implantable medical device and an in vitro charger. The implantable medical device includes a main battery, a backup battery, a wake-up module, a first charging coil, a first processor and a first communication module. The in vitro charger includes a second charging coil, a second processor, a second communication module and a first warning module. The main battery and the backup battery are used for power supply, and the backup battery is used for fast charge of the main battery. The system is capable of prompting and rapidly supplying power to the implant device in any unexpected situation and effectively preventing the sudden power failure and insufficient power supply of the implantable medical device.

Description

An implanted device battery management system

technical field

The invention relates to a rechargeable implant device, in particular to a battery management system of the implant device.

Background technique

At present, implantable medical devices can be controlled outside the body to wirelessly charge devices inside the body.

US Patent No. 8,634,927B2 discloses a battery management system for an implanted device, in which the external controller of the implanted device can control multiple external recharging devices to charge different implantable medical devices in the body through a wireless communication link, but cannot remind the charging.

US Patent No. 7,167,756B1 discloses another battery management system for an implanted device, which can monitor and adjust the parameters of an external charger charging the battery of an implanted medical device in vitro, and manage the charging system, but cannot remind the charging system.

The current in vitro chargers can regularly charge fully implanted medical devices through wireless communication methods, but when the IMD is low on power, it may forget to charge or the charger is not around. When it is insufficient, it should be charged in time. It can be seen that effective prevention of sudden power failure and fast charging of implantable medical devices are current technical difficulties.

Contents of the invention

The object of the present invention is to overcome the deficiencies in the above-mentioned technologies, and provide a battery management system for implantable devices, including an implantable medical device and an external charger; the implantable medical device includes a main battery, a backup battery, a wake-up module, a first charging A coil, a first processor, and a first communication module; the external charger includes a second charging coil, a second processor, a second communication module, and a first warning module; the first processor monitors the power of the main battery, and if it is less than a preset threshold Find the second communication module through the first communication module to send charging reminder information to the external charger, the external charger performs charging reminder warning through the early warning module, the second processor controls the second charging coil to charge the main battery through the first charging coil, and at the same time , the first processor controls the wake-up module to wake up the backup battery, and the backup battery charges the main battery; if it is not paired with the second communication module, the external charger may not be around, and at this time the first processor controls the wake-up module to wake up Backup battery for power supply.

Further, it also includes an external reminding device. The external reminding device includes a third communication module, a third processor and an early warning communication module. Three communication modules, the third processor controls the early warning communication module to perform early warning of related events.

Further, the third processor controls the early-warning communication module to perform early-warning of related events, and can send information to the patient's mobile phone to remind the backup battery to be powered, the main battery needs to be charged, and can also send the backup battery power information.

Further, the above-mentioned third processor controls the early warning communication module to perform early warning of related events, which may be sound early warning.

Further, the main battery is provided with a temperature sensor, and the temperature sensor measures the temperature of the main battery during charging, and transmits the temperature to the first warning module through the first communication module.

Description of drawings

Fig. 1 is a diagram of the battery management system of the implant device of the present invention.

101. Implantable medical device 102. External charger 103. External reminder device

201. Main battery 202. Backup battery 203. Wake-up module 204. First charging coil 205. First processor 206. First communication module.

301. Second charging coil 302. Second processor 303. Second communication module 304. First warning module

401. The third communication module 402. The third processor 403. The early warning communication module.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Figure 1 shows a diagram of an implantable device battery management system for delivering therapy to a patient. The implantable medical device battery management system includes an implantable medical device 101 and an external charger 102. The implantable medical device can be any suitable implanted device that provides therapy to a patient, generates and delivers electrical stimulation to the body's nerves and Tissues for the treatment of a variety of biological disorders, such as devices that provide heart rate management therapy to the heart, and may include, for example, implantable pacemakers, cardioverters, and/or defibrillators that can be accessed via leads, etc. Provide treatment to the patient's heart; other examples include cochlear stimulators for deafness, retinal stimulators for blindness, muscle stimulators for synergistic limb movements, and spinal cord stimulators for pain relief. The implantable medical device can also be used to sense ECG signals and/or other physiological parameters (such as blood oxygen saturation, blood pressure, heart rate, body temperature, respiratory rate, etc.) of the patient's heart, and store the above signals and/or Physiological parameters are recorded for analysis by clinicians. As shown in FIG. 1 , the implantable medical device 101 includes a main battery 201 and a backup battery 202 . Wherein, the main battery and the backup battery are used as the power supply of the device to supply power to the implantable medical device; the above-mentioned main battery and the backup battery are both rechargeable batteries, which can be charged by an additional charging coil, and the backup battery can charge the main battery. to increase the charging speed. Rechargeable batteries can be formed using common chemistries, such as lithium-ion polymer batteries. The implantable medical device includes first and second working states. In the first working state, the main battery has enough power to drive the implantable medical device to work. At this time, the main battery is started to supply power to the medical device. When the main battery When the power is insufficient to drive the implantable medical device to work, the system enters the second working state, in which the backup battery is activated, and the medical device is powered by the backup battery.

The structure of the battery management system will be specifically described below with reference to FIG. 1 . The above-mentioned implantable medical device 101 includes the main battery 201 and the backup battery 202, and also includes a wake-up module 203 for controlling power supply and charging of the main battery and the backup battery, a first charging coil 204, a first processor 205, a first communication module 206 . Wherein, the wake-up module 203 is connected with the output terminals of the first processing module 205 and the first communication module 206 respectively, and is used to wake up the backup battery 202 to supply power to the implantable medical device; the first processor 205 is connected with the main battery 201, the second The input terminal of a communication module 206 is connected with the wake-up module 203 for monitoring the power of the main battery 201 and starting the first communication module 206 and the wake-up module when necessary; the first charging coil 204 is used to cooperate with the second charging coil 301 The main battery 102 is charged. The above-mentioned external charger 102 is placed outside the body of the patient, and can send information such as charging reminders to the patient when necessary, so as to provide electrical energy to the implantable medical device in time, which includes a second charging coil 301, a second processor 302, a second communication Module 303 and the first warning module 304. The second charging coil 301 is used to cooperate with the first charging coil 204 to charge the main battery 102; the second processor 302 communicates with the second charging coil 301, the output terminal of the second communication module 303 and the first warning module 304 connected, used to start charging warning and control charging to the main battery; the input terminal of the second communication module 303 is connected with the output terminal of the first communication module 206, and is used to realize the connection between the implantable medical device 101 in the body and the external charger 102 , the output end of the second communication module 303 is connected to the second processor 302 for sending the charging request to the second processor 302 . Wherein, the first charging coil 204 and the second charging coil 206 communicate wirelessly during the charging process to form a magnetic charging field to charge the main battery 102 .

The working mode of the implantable medical device battery management system will be described in detail below. When the power of the main battery 201 can drive the implantable medical device 101 to work normally, the system enters the first working state. At this time, the main battery 201 supplies power to the medical device in the patient's body, and the first processor 205 obtains the remaining power of the main battery 201. information to monitor the power of the main battery 201, the first communication module 206 stores a preset power threshold, the first processor 205 obtains the power of the main battery 201, and then transmits the power data of the main battery to the first communication module 206, the first communication The module 206 compares the above-mentioned main battery power data received with the preset power threshold, and when it is less than the preset power threshold, communicates externally through wired or wireless methods to find out whether the second communication module 303 is in the working area, And send charging request. When the external charger 102 is within the working area, the first communication module 206 can be successfully paired with the second communication module 303 , and at this time, a charging request is sent to the second communication module 303 . After the input terminal of the second communication module 303 receives the charging request sent by the first communication module 206, the request is sent to the second processor 302, and then the second processor 302 sends a charging reminder message, and the first warning module 304 Start charging reminder warning. The warning module provides warnings to patients and guardians through visual and/or auditory signals, such as LED lights and/or buzzing speakers. At the same time, the second processor 302 controls the second charging coil 301 to cooperate with the first charging coil 204 to form a charging circuit, wherein the charging circuit generates an alternating current in the second charging coil 301, thereby generating an alternating magnetic field charging field, which results in the first An AC current is generated in the charging coil 204, and the current is rectified to charge the battery 201. At the same time, the first processor 205 sends a control signal to the wake-up module 203, and the wake-up module 203 starts the backup battery 202, and the backup battery 202 sends a signal to the main battery. The battery 201 is charged. The main battery 201 is provided with a temperature sensor, and the temperature sensor measures the temperature of the main battery 201 during charging, and transmits the temperature to the first warning module 304 through the first communication module 206 . When the external charger 102 is not around the patient, that is, far away from the working range, the first communication module 206 fails to pair with the second communication module 303, and the communication line cannot be established, so that the charging request fails to be sent, and the main battery 201 cannot be charged immediately. At this time, the first processor 205 sends a control signal to the wake-up module 203, and the backup battery 202 is started by the wake-up module 203, so as to supply power to the implantable medical device 101 in time, and the system enters the second working state to avoid medical treatment due to insufficient power. The device stops working, putting the patient at risk.

Further, the implantable medical device battery management system also includes an external reminder device 103, which includes a third communication module 401, a third processor 402 and an early warning communication module 403, and the external reminder device communicates with The implantable medical device 101 communicates to remind the patient and/or the guardian to perform the charging operation, and the above-mentioned third processor 402 is used to control the early warning communication module 403 to perform early warning of related events. The working method of the external reminder device is that when the backup battery 202 supplies power, that is, the system is in the second working state, and the communication between the first communication module 206 and the second communication module 303 fails, then the main battery 201 will send a message via wireless or limited means. The message of waiting to be charged and working of the backup battery 202 is sent to the input terminal of the third communication module 401 . After the third communication module 401 receives the above message, it sends the message to the third processor 402, and the third processor 402 controls the early warning communication module 403 to perform early warning of related events. The early warning methods include visual signals such as LED lights, buzzers, etc. Sound signals and/or tactile signals such as vibrations are used to remind the patient that the backup battery 202 is supplying power and the main battery 201 needs to be charged. Furthermore, the external reminding device 103 can send information to the patient's mobile phone to remind the backup battery 202 is supplying power and the main battery 201 needs to be charged, or monitor the power information of the backup battery 202 through the implantable medical device and send it.

Claims (5)

1. a kind of implanted device battery management system, it is characterised in that：Including implantable medical device（101）With external charger （102）；The implantable medical device（101）Including main battery（201）, reserve battery（202）, wake module（203）, first Charge coil（204）, first processor（205）And first communication module（206）；The external charger（102）Including second Charge coil（301）, second processing device（302）, second communication module（303）, the first warning module（304）；At described first Reason device（205）Monitor the main battery（201）Electricity, less than predetermined threshold value the first communication module is then passed through（206）Find The second communication module（303）Transmission charge reminder information is to the external charger（102）, the external charger （102）By first warning module（304）It is charged prompting early warning, the second processing device（302）Control described Two charge coils（301）By first charge coil（204）For the main battery（201）Charge, meanwhile, at described first Reason device（205）Control the wake module（203）, wake up the reserve battery（202）, the reserve battery（202）To described Main battery（201）Charge；If unpaired to the second communication module（303）, then the external charger（102）May not be At one's side, the now first processor（205）Control the wake module（203）, wake up the reserve battery（202）, carry out Power supply.

2. implanted device battery management system according to claim 1, it is characterised in that：The management system also includes one External alarm set（103）, the external alarm set（103）Including third communication module（401）, the 3rd processor（402） With early warning communication module（403）, when the reserve battery（202）During power supply, the first communication module（206）Send the master Battery（201）It is to be charged, the reserve battery（202）The message of work is to the third communication module（401）, at the described 3rd Reason device（401）Control the early warning communication module（403）Carry out dependent event early warning.

3. implanted device battery management system according to claim 2, it is characterised in that：3rd processor（402） Control the early warning communication module（403）Carrying out dependent event early warning can send standby electricity described in information reminding to patient's mobile phone Pond（202）In power supply, the main battery（201）Need to charge, the reserve battery can also be sent（202）Information about power.

4. implanted device battery management system according to claim 3, it is characterised in that：3rd processor（402） Control the early warning communication module（403）Carrying out dependent event early warning can be with sound early warning.

5. implanted device battery management system according to claim 1, it is characterised in that：The main battery（201）Arrange There are temperature sensor, main battery described in the temperature sensor measurement（201）Temperature during charging, and by the described first communication mould Block（206）Pass to first warning module（304）.