A remote detection device for implanted heart pacemaker and bidirectional data transmission method

Abstract

The invention discloses a remote metering device for implanted cardiac pacemaker and the bi-directional data transmission method. The external master control unit of said remote metering device emits frequency-modulated wave to internal impulsator thorugh carrier frequency oscillator with automatic following and adjusting generated frequency and LC series resonance circuit; the LC series resonance circuit of internal impulsator can receive and emit data, when emitting data, it can emit remote metering data of internal master control unit to switch pipe to change the load of LC parallel resonance circuit, regulates radio-frequency carrier load of external controller through jigger coupling and emits remote metering data got by passing receiving circuit of controller to master control unit of program controller. When the external program controller at work, it can provide current of 1 milliammeter for internal impulsator, which can maintain normal work and bi-directional data transmission when ther is not enough powder in internal battery.

Description

technical field

[0001] The invention relates to a remote measurement system of an active implantable medical device, in particular to an implantable cardiac pacemaker remote measurement device and a two-way data transmission method. Background technique

[0002] Active implantable medical devices represented by cardiac pacemakers have been used for decades. A modern implantable cardiac pacemaker treatment system generally consists of two parts: one is a microelectronic measurement and control device implanted in the body, including the corresponding catheter electrodes and sensors to form a closed-loop control system for ECG, usually called a pulse generator; The other part is a device placed outside the body that uses radio frequency communication to program the pulse generator in the body and receive telemetry data, which is usually called an in vitro program controller.

[0003] The pulse generator implanted in the body is sealed in a metal titanium shell together with t...

Examples

Embodiment Construction

[0017] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0018] As shown in Figure 1, an implantable cardiac pacemaker telemetry device is composed of an external program controller transceiver part I and an internal pulse generator transceiver part II. The transceiver part I of the in vitro program-controlled instrument includes a series resonant circuit composed of transmitting coil L1 and capacitor C1; the series point of transmitting coil L1 and capacitor C1 is connected to the program-controlled instrument receiving circuit 4 composed of a wave detector, band-pass filter amplification and shaping links to the program-controlled The receiving data end 8 of the main control unit of the instrument; the series resonant circuit is connected to the class D amplifier 3, the input end of the class D amplifier 3 is connected to the carrier modulator 2, and the input end of the carrier modulator 2 is connected to th...

technical field

[0001] The invention relates to a remote measurement system of an active implantable medical device, in particular to an implantable cardiac pacemaker remote measurement device and a two-way data transmission method. Background technique

[0002] Active implantable medical devices represented by cardiac pacemakers have been used for decades. A modern implantable cardiac pacemaker treatment system generally consists of two parts: one is a microelectronic measurement and control device implanted in the body, including the corresponding catheter electrodes and sensors to form a closed-loop control system for ECG, usually called a pulse generator; The other part is a device placed outside the body that uses radio frequency communication to program the pulse generator in the body and receive telemetry data, which is usually called an in vitro program controller.

[0003] The pulse generator implanted in the body is sealed in a metal titanium shell together with t...

Examples

Embodiment Construction

[0017] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0018] As shown in Figure 1, an implantable cardiac pacemaker telemetry device is composed of an external program controller transceiver part I and an internal pulse generator transceiver part II. The transceiver part I of the in vitro program-controlled instrument includes a series resonant circuit composed of transmitting coil L1 and capacitor C1; the series point of transmitting coil L1 and capacitor C1 is connected to the program-controlled instrument receiving circuit 4 composed of a wave detector, band-pass filter amplification and shaping links to the program-controlled The receiving data end 8 of the main control unit of the instrument; the series resonant circuit is connected to the class D amplifier 3, the input end of the class D amplifier 3 is connected to the carrier modulator 2, and the input end of the carrier modulator 2 is connected to th...

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