CN202933391U - In vitro controller and implantable medical system - Google Patents

In vitro controller and implantable medical system Download PDF

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Publication number
CN202933391U
CN202933391U CN 201220601403 CN201220601403U CN202933391U CN 202933391 U CN202933391 U CN 202933391U CN 201220601403 CN201220601403 CN 201220601403 CN 201220601403 U CN201220601403 U CN 201220601403U CN 202933391 U CN202933391 U CN 202933391U
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China
Prior art keywords
magnetic field
implantable medical
audion
medical devices
type magnetic
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CN 201220601403
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Chinese (zh)
Inventor
孙国祥
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Suzhou Jingyu Medical Equipment Co Ltd
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Suzhou Jingyu Medical Equipment Co Ltd
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Priority to CN 201220601403 priority Critical patent/CN202933391U/en
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Abstract

The utility model discloses an in vitro controller used for reliable communication with an implantable medical instrument and an implantable medical system including the in vitro controller. A controllable alternating magnetic field generation circuit used for disconnecting and closing a reed switch is arranged in the in vitro controller; when the in vitro controller needs to transmit communication information to the implantable medical instrument, a switch module of the implantable medical instrument is disconnected and closed under the action of the controllable alternating magnetic field generation circuit so as to convert a communication pulse train signal into an alternating magnetic field for transmission to the implantable medical instrument. Compared with the prior art, the in vitro controller provided by the utility model is not vulnerable to interference by a magnetic field in an external environment, so misoperation of the implantable medical instrument is avoided, and reliability of half-duplex serial communication is improved; moreover, the information triggers generation of the alternating magnetic field for the communication pulse signal of a microprocessor of the in vitro controller, the alternating magnetic field may contain a plurality of control information which is transmitted into the implantable medical instrument, so information transmission quantity and transmission efficiency are improved.

Description

A kind of external controller and Implanted medical system
Technical field
This utility model relates to a kind of Implanted medical system, specifically, relates to a kind of for the external controller with the implantable medical devices reliable communication and wireless communications method thereof.
Background technology
Implanted medical system generally includes implantable neural electrical stimulator and (comprises brain deep brain stimulation DBS, the implanted cortex stimulates CNS, implanted spinal cord stimulation trial SCS, implanted sacral nerves electricity irritation SNS, implanted vagus nerve electricity irritation VNS etc.), implantable cardiac electric stimulation (being commonly called as cardiac pacemaker), implanted drug infusion system (IDDS) etc.
Take implantable neural electrical stimulator as example, mainly comprise the pulse generator, electrode and the external controller that implant.Wherein, pulse generator is connected with electrode, thereby the burst transmissions that pulse generator is produced is to electrode, and the pulse signal that pulse generator produces transfers to specific neuronal target by electrode and carries out electricity irritation, thereby makes function of human body return to the state of normal operation.External controller comprises doctor's program controller, patient controller.
Wherein, doctor's program controller is the device that the doctor is used for according to the output parameter of pulse generator in patients condition monitoring control agent, common doctor's program controller can be used to control a plurality of pulse generators, and doctor's program controller can communicate by the pulse generator in wireless communications mode, magnetic coil or other communication modes and implant patient body.
Wireless communications mode is the trend of Implanted medical system development at present, and the doctor can use external controller to control or inquire about the output of implantable medical devices by radio communication.In prior art, in order to guarantee that the doctor need to use external controller and the implantable medical devices when needed can proper communication, usually after implantable medical devices being arranged to power on, make its wireless communication module all the time in the high-power operation state, after external controller sends information to implantable medical devices, implantable medical devices can be received in time this information and give a response.
Yet, because the energy of the battery in the implantable medical devices of Implanted medical system is limited, if the wireless communication module of implantable medical devices is all the time in the high-power operation state, power consumption is shortened the service life of implantable medical devices greatly than senior general, not only to bear the high expense of changing implantable medical devices for the patient, also will bear the misery of operation.
The utility model content
For the deficiencies in the prior art, the technical problems to be solved in the utility model be to provide a kind of be not subject to external magnetic field disturb can with the external controller of implantable medical devices reliable communication.
According to technical scheme provided by the utility model, a kind of for the external controller with the implantable medical devices reliable communication, comprising:
Power supply;
Microprocessor, be connected with described power supply, for generation of the communication pulse sequence signal;
S type magnetic field produces circuit and N-type magnetic field produces circuit, for generation of HeNXing magnetic field, S type magnetic field;
Produce circuit with described S type magnetic field and produce with N-type magnetic field the phase inverter that circuit is connected, the input of described phase inverter is connected with described output end of microprocessor, for phasing back 180 degree of the communication pulse sequence signal by described microprocessor output, S type magnetic field is produced in circuit and N-type magnetic field generation circuit has and only has a circuit in running order at synchronization;
Described microprocessor is controlled described S type magnetic field and is produced circuit and N-type magnetic field generation circuit generation S type or disconnection and the closure of N-type alternating magnetic field for controlling the magnetic switch in implantable medical devices, described communication pulse sequence signal is converted to alternating magnetic field and is sent to implantable medical devices.
Preferably, described S type magnetic field produces circuit and comprises the first audion, the first coil be connected with the colelctor electrode of described the first audion, with described the first coil, is connected in parallel in the first fly-wheel diode between power Vcc and the first transistor collector, and described the first coil is used for generation S type magnetic field when the first audion conducting;
Described N-type magnetic field produces circuit and comprises the second audion, the second coil be connected with the colelctor electrode of described the second audion, with described the second coils from parallel connection of coils, is connected in the second fly-wheel diode between power Vcc and the second transistor collector, and described the second coil is used for generation N-type magnetic field when the second audion conducting;
When described microprocessor output high level, described the second audion cuts out, and described first audion conducting the first coil produces S type magnetic field; When described microprocessor output low level, described the first audion cuts out, and described second audion conducting the second coil produces N-type magnetic field, produces S type, N-type alternating magnetic field for controlling disconnection and the closure of the magnetic switch in implantable medical devices.
Preferably, described S type magnetic field produces circuit and also comprises the first build-out resistor between the base stage that is connected to described output end of microprocessor and the first audion, base stage and the first electric capacity between emitter stage and the first resistance that is in parallel and is connected to described the first audion, for preventing described the first audion, produces the mistake pulse.
Preferably, described N-type magnetic field produces circuit and also comprises the second build-out resistor between the base stage that is connected to described inverter output and the second audion, base stage and the second electric capacity between emitter stage and the second resistance that is in parallel and is connected to described the second audion, for preventing described the second audion, produces the mistake pulse.
Preferably, described magnetic switch is tongue tube.
Preferably, described external controller be have wireless communication module, can with the patient controller of Implantable Pulse Generator radio communication.
This utility model provides a kind of Implanted medical system, comprising: implantable medical devices, the switch module that in described implantable medical devices, setting can be switched between mode of operation or battery saving mode; Also comprise external controller as above;
When described external controller transmits the communication pulse sequence signal to implantable medical devices, the microprocessor of described external controller is controlled controlled alternating magnetic field and is produced switch module disconnection or the closure that circuit makes described implantable medical devices, described communication pulse sequence signal is converted to alternating magnetic field and is sent to implantable medical devices.
Preferably, described implantable medical devices is Implantable Pulse Generator, described external controller be have wireless communication module, can with the patient controller of described Implantable Pulse Generator radio communication.
Compared with prior art the utility model has the advantages that: because the controlled alternating magnetic field be provided with in external controller of the present utility model for disconnection or closed tongue tube produces circuit, when the needs external controller transmits the communication pulse sequence signal to implantable medical devices, the switch module of described implantable medical devices disconnects or is closed under the effect of controlled alternating magnetic field generation circuit, thereby the communication pulse sequence signal that external controller is sent transfers to implantable medical devices.Compared with prior art, be not vulnerable to the interference in the magnetic field that exists in external environment, avoided the misoperation of implantable medical devices, improved the reliability of half duplex series communication.And, due to the communication pulse sequence signal triggering for generating of this information microprocessor that is external controller alternating magnetic field, this alternating magnetic field can comprise various control information and be sent in implantable medical devices, has improved transinformation and efficiency of transmission.
The accompanying drawing explanation
The circuit module schematic diagram that accompanying drawing 1 is implantable medical devices and external controller;
The electrical block diagram that accompanying drawing 2 is implantable medical devices and external controller;
Wherein:
1, power supply; 2, microprocessor; 3, phase inverter; 4, S type magnetic field produces circuit; 41, the first audion; 42, the first coil; 43, the first fly-wheel diode; 44, the first build-out resistor; 45, the first electric capacity; 46, the first resistance; 5, N-type magnetic field produces circuit; 51, the second audion; 52, the second coil; 53, the second fly-wheel diode; 54, the second build-out resistor; 55, the second electric capacity; 56, the second resistance; 6, controlled alternating magnetic field produces circuit, 7, switch module; 8, wireless communication module; 9, microprocessor module; 10, external controller; 20, implantable medical devices.
The specific embodiment
Below in conjunction with accompanying drawing, this utility model is described in further detail:
As shown in Figures 1 and 2, a kind of for the external controller with the implantable medical devices reliable communication, comprising: power supply 1; Microprocessor 2, microprocessor 2 is connected with described power supply 1, for generation of the communication pulse sequence signal; Phase inverter 3, the input of described phase inverter 3 is connected with described microprocessor 2 outfans, for phasing back 180 degree of the communication pulse sequence signal by described microprocessor 2 outputs, assurance S type magnetic field generation circuit and N-type magnetic field produce in circuit has and only has a circuit in running order at synchronization; S type magnetic field produces circuit 4 and N-type magnetic field generation circuit 5 has formed alternating magnetic field generation circuit, for controlling disconnection and the closure of magnetic switch of implantable medical devices inside, described communication pulse sequence signal is converted to alternating magnetic field and is sent to implantable medical devices.In present embodiment, the magnetic switch of implantable medical devices is tongue tube.
In original technical scheme, the function of tongue tube is only used for the wireless communication module of implantable medical devices is switched between mode of operation or battery saving mode.Generally tongue tube is off-state, and wireless communication module is in battery saving mode.When client need wakes implantable medical devices and external controller up and carries out high-speed traffic, only need, by permanent magnet near the medical apparatus and instruments implanted, can complete implantable medical devices is switched to mode of operation by battery saving mode.Due to the overwhelming majority time tongue tubes in open mode, make microprocessor module and wireless communication module in battery saving mode, greatly saved the power consumption while carrying out wireless program-controlled without the use external controller at ordinary times, extended the service life of implantable medical devices, there is larger economic worth and use value, and guaranteed the real-time responsiveness of implantable medical devices.
Yet, operating characteristic due to tongue tube, when being greater than setting value, magnetic field intensity all can move, therefore being subject to external magnetic field disturbs and the generation misoperation, and only can transmit by mode of operation and switch to battery saving mode by opening or closing tongue tube, perhaps by battery saving mode, switched to the signal of mode of operation, the function singleness of the signal of communication of transmission, can't transmit comparatively complicated control signal.
And in this utility model, the controlled alternating magnetic field be provided with in controller in vitro for disconnection or closed tongue tube produces circuit, when the needs external controller transmits the communication pulse sequence signal to implantable medical devices, the tongue tube of implantable medical devices repeatedly disconnects or is closed under the effect of controlled alternating magnetic field generation circuit, thereby the communication pulse sequence signal that external controller is sent is converted to alternating magnetic field, is sent to implantable medical devices.Compared with prior art, be not vulnerable to the interference in the magnetic field that exists in external environment, avoided the misoperation of implantable medical devices, improved the reliability of half duplex series communication.And, due to the communication pulse sequence signal triggering for generating of this information microprocessor that is external controller alternating magnetic field, this alternating magnetic field can comprise various control information and be sent in implantable medical devices, such as shift mode information, barbing swash, close stimulation, establish the control informations such as amplitude, pulsewidth, frequency, transinformation and efficiency of transmission have been improved.
S type magnetic field produces circuit 4 and is connected with the input of phase inverter 3, S type magnetic field produce circuit 4 comprise the first audion 41, the first coil 42 be connected with the colelctor electrode of described the first audion 41, and described the first coil 42 be connected in parallel in the first fly-wheel diode 43 between high level (Vcc) and the first transistor collector, described the first coil 42 is for generation S type magnetic field when the first audion 41 conducting.
N-type magnetic field produces circuit 5 and is connected with the outfan of phase inverter 3, N-type magnetic field produce circuit 5 comprise the second audion 51, the second coil 52 be connected with the colelctor electrode of described the second audion 51, and described the second coil 52 be connected in parallel in the second fly-wheel diode 53 between high level (Vcc) and the second audion 51 colelctor electrodes, described the second coil 52 is for generation N-type magnetic field when the second audion 51 conducting.
When microprocessor 2 output high level, described the second audion 51 cuts out, and described the first audion conducting 41 first coils 42 produce S type magnetic field; When described microprocessor 2 output low level, described the first audion 41 cuts out, and described the second audion is led 51 logical the second coils 52 and produced N-type magnetic field, produces S type, N-type alternating magnetic field for controlling disconnection and the closure of the magnetic switch in implantable medical devices.
S type magnetic field produces circuit 4 and also comprises the first build-out resistor 44 between the base stage that is connected to described microprocessor 2 outfans and the first audion 51, base stage and the first electric capacity 45 between emitter stage and the first resistance 46 that is in parallel and is connected to described the first audion 41, for preventing described the first audion 41, produces the mistake pulse.
N-type magnetic field produces circuit 5 and also comprises the second build-out resistor 54 between the base stage that is connected to described phase inverter 3 outfans and the second audion 51, base stage and the second electric capacity 55 between emitter stage and the second resistance 56 that is in parallel and is connected to described the second audion 51, for preventing described the second audion 51, produces the mistake pulse.
When external controller, when to implantable medical devices, sending signal of communication, can make S type magnetic field produce circuit 4 and N-type magnetic field to produce circuit 5 and all turn-off by closing Enable Pin on reverser 3, more energy efficient.
External controller be have wireless communication module, can with the patient controller of Implantable Pulse Generator radio communication.
This utility model provides a kind of Implanted medical system, comprises implantable medical devices 20, the switch module 7 that the interior setting of implantable medical devices 20 can be switched between mode of operation or battery saving mode; Also comprise external controller 10 as above.
When described external controller 10 transmits the communication pulse sequence signal to implantable medical devices 20, the switch module 7 of described implantable medical devices 20 disconnects or is closed under the effect of controlled alternating magnetic field generation circuit 6, and the communication pulse sequence signal that external controller 10 is sent is converted to alternating magnetic field and is sent to implantable medical devices 20.
Such as the communication pulse sequence signal is 8 bit, the different combination by pulse 0,1, can be sent to different communication control informations in implantable medical devices 20 by external controller 10, improved transinformation and efficiency of transmission.
In present embodiment, switch module 7 is tongue tube, can be also that other can by setting, magnetic field disconnects or closed magnetic switch in other embodiments.
Described implantable medical devices 20 is Implantable Pulse Generator, described external controller 10 for have wireless communication module, can with the patient controller of Implantable Pulse Generator radio communication.
Above the specific embodiment of the present utility model is described.For description of the present utility model, be illustrative herein, thereby scope of the present utility model should not be limited to the above-mentioned specific embodiment.It will be apparent to one skilled in the art that and the above-mentioned specific embodiment is carried out to other distortion or change in the situation that do not break away from purport of the present utility model or substitutive characteristics, also should be considered as protection domain of the present utility model.

Claims (8)

1. one kind for the external controller with the implantable medical devices reliable communication, it is characterized in that, comprising:
Power supply;
Microprocessor, be connected with described power supply, for generation of the communication pulse sequence signal;
S type magnetic field produces circuit and N-type magnetic field produces circuit, for generation of HeNXing magnetic field, S type magnetic field;
Produce circuit with described S type magnetic field and produce with N-type magnetic field the phase inverter that circuit is connected, the input of described phase inverter is connected with described output end of microprocessor, for phasing back 180 degree of the communication pulse sequence signal by described microprocessor output, S type magnetic field is produced in circuit and N-type magnetic field generation circuit has and only has a circuit in running order at synchronization;
Described microprocessor is controlled described S type magnetic field and is produced circuit and N-type magnetic field generation circuit generation S type or disconnection and the closure of N-type alternating magnetic field for controlling the magnetic switch in implantable medical devices, described communication pulse sequence signal is converted to alternating magnetic field and is sent to implantable medical devices.
2. according to claim 1 a kind of for the external controller with the implantable medical devices reliable communication, it is characterized in that, described S type magnetic field produces circuit and comprises the first audion, the first coil be connected with the colelctor electrode of described the first audion, with described the first coil, is connected in parallel in the first fly-wheel diode between power Vcc and the first transistor collector, and described the first coil is used for generation S type magnetic field when the first audion conducting;
Described N-type magnetic field produces circuit and comprises the second audion, the second coil be connected with the colelctor electrode of described the second audion, with described the second coils from parallel connection of coils, is connected in the second fly-wheel diode between power Vcc and the second transistor collector, and described the second coil is used for generation N-type magnetic field when the second audion conducting;
When described microprocessor output high level, described the second audion cuts out, and described first audion conducting the first coil produces S type magnetic field; When described microprocessor output low level, described the first audion cuts out, and described second audion conducting the second coil produces N-type magnetic field, produces S type, N-type alternating magnetic field for controlling disconnection and the closure of the magnetic switch in implantable medical devices.
3. according to claim 2 a kind of for the external controller with the implantable medical devices reliable communication, it is characterized in that, described S type magnetic field produces circuit and also comprises the first build-out resistor between the base stage that is connected to described output end of microprocessor and the first audion, base stage and the first electric capacity between emitter stage and the first resistance that is in parallel and is connected to described the first audion, for preventing described the first audion, produces the mistake pulse.
4. according to claim 2 a kind of for the external controller with the implantable medical devices reliable communication, it is characterized in that, described N-type magnetic field produces circuit and also comprises the second build-out resistor between the base stage that is connected to described inverter output and the second audion, base stage and the second electric capacity between emitter stage and the second resistance that is in parallel and is connected to described the second audion, for preventing described the second audion, produces the mistake pulse.
5. according to claim 1 a kind ofly it is characterized in that for the external controller with the implantable medical devices reliable communication, described magnetic switch is tongue tube.
6. according to claim 1 a kind ofly it is characterized in that for the external controller with the implantable medical devices reliable communication, described external controller be have wireless communication module, can with the patient controller of Implantable Pulse Generator radio communication.
7. an Implanted medical system, is characterized in that, comprising:
Implantable medical devices, the switch module that in described implantable medical devices, setting can be switched between mode of operation or battery saving mode;
Also comprise as arbitrary described external controller in claim 1 to 6;
When described external controller transmits the communication pulse sequence signal to implantable medical devices, the microprocessor of described external controller is controlled controlled alternating magnetic field and is produced switch module disconnection or the closure that circuit makes described implantable medical devices, described communication pulse sequence signal is converted to alternating magnetic field and is sent to implantable medical devices.
8. a kind of Implanted medical system according to claim 7, it is characterized in that, described implantable medical devices is Implantable Pulse Generator, described external controller be have wireless communication module, can with the patient controller of described Implantable Pulse Generator radio communication.
CN 201220601403 2012-11-14 2012-11-14 In vitro controller and implantable medical system Expired - Lifetime CN202933391U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103691048A (en) * 2013-12-31 2014-04-02 山东科技大学 Micro therapy apparatus acting on target cells
CN103801000A (en) * 2012-11-14 2014-05-21 苏州景昱医疗器械有限公司 External controller and communication method thereof
RU2563387C2 (en) * 2013-12-04 2015-09-20 Общество с ограниченной ответственностью "Фармаг" Implanted device, controlled by magnetic field, and method of medication release therefrom

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103801000A (en) * 2012-11-14 2014-05-21 苏州景昱医疗器械有限公司 External controller and communication method thereof
CN103801000B (en) * 2012-11-14 2016-03-16 苏州景昱医疗器械有限公司 A kind of external controller and communication means thereof
RU2563387C2 (en) * 2013-12-04 2015-09-20 Общество с ограниченной ответственностью "Фармаг" Implanted device, controlled by magnetic field, and method of medication release therefrom
CN103691048A (en) * 2013-12-31 2014-04-02 山东科技大学 Micro therapy apparatus acting on target cells
CN103691048B (en) * 2013-12-31 2015-09-23 山东科技大学 A kind of micro device acting on target cell

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Granted publication date: 20130515