JP2014108143A - External pacemaker device - Google Patents

Abstract

An object of the present invention is to monitor patient's condition while pacing, and to provide effective information for treatment.
An external pacemaker apparatus 10 includes an electrical stimulation generator 21 that applies electrical stimulation to a subject's myocardium via an electrode catheter mounted in the body of the subject 1, and electrodes connected thereto. The subject 1 through an intracardiac electrocardiogram measurement unit 612 capable of measuring intracardiac electrocardiogram information including the intracardiac electrocardiogram of the subject 1 via a catheter and an electrode 33 attached to the body surface of the subject 1 A body surface electrocardiogram measuring unit 614 for measuring the body surface electrocardiogram, and a display unit 74 for displaying the measured intracardiac electrocardiogram and the body surface electrocardiogram in waveform.
[Selection] Figure 3

Description

  The present invention relates to an external pacemaker device.

  In order to treat patients with heart failure such as bradyarrhythmia, an electrode is inserted from the blood vessel in the left clavicle of the patient, and electrical stimulation by a weak current is supplied to the heart at a predetermined cycle via this electrode. A pacemaker that performs so-called “pacing” is used to control the pulsation of the patient.

  In addition to the implantable pacemaker implanted in the body, there is an external pacemaker in which an electrical stimulation generator that supplies electrical stimulation with a weak current to the heart at a predetermined cycle is arranged outside the patient's body (for example, Patent Document 1). This extracorporeal pacemaker is used for temporary use, but it requires only an electrode to be placed inside the body, making it easy to set and change the output (current and voltage), stimulation frequency, etc. There are advantages such as easy maintenance inspection and battery replacement.

  For example, an external pacemaker is used for emergency treatment when a patient suddenly changes before the operation of the implantable pacemaker, and for checking the optimum output and stimulation frequency of the implantable pacemaker. Extracorporeal pacemakers are also used as life support devices to stabilize the movement of the patient's heart after in-hospital arrhythmia surgery. In these cases, an electrocardiogram telemeter is attached to the patient, and safety is ensured by monitoring the electrocardiogram information of the patient in detail.

JP 2003-126273 A

  As described above, the extracorporeal pacemaker is attached to a patient and used (paced) together with an electrocardiogram telemeter as an emergency treatment, confirmation of optimal output and stimulation frequency, and a life support device after surgery. As described above, the extracorporeal pacemaker alone cannot check the intracardiac electrocardiogram or pacing status when stimulating the heart atrium and ventricle of the patient. For this reason, even during stimulation of the heart and ventricle of the patient's heart, he wants to check the intracardiac electrocardiogram and pacing status with a pacemaker device alone to understand the status of the patient's condition and events such as arrhythmia There was a request.

  This invention is made | formed in view of this point, and it aims at providing the external pacemaker apparatus which can monitor a patient's condition, performing pacing.

  One aspect of the extracorporeal pacemaker device of the present invention includes an electrode unit that is worn on a subject, an electrical stimulation generator that supplies electrical stimulation to the myocardium of the subject, and an electrocardiogram from the electrode unit. An electrocardiogram information measuring unit capable of measuring information; a pacemaker body which is installed outside the body of the subject and accommodates the electrical stimulation generation unit and the electrocardiogram information measuring unit; and the electrocardiogram which is provided and measured in the pacemaker body And a display unit for displaying information in a waveform.

  ADVANTAGE OF THE INVENTION According to this invention, a patient's condition can be monitored while pacing, and effective information for treatment can be provided.

1 is an external view of an external pacemaker device according to an embodiment of the present invention. The figure which shows schematic structure of the principal part of the external pacemaker apparatus which concerns on one embodiment of this invention. Functional block diagram for explaining the function of the control unit shown in FIG. The figure which shows an example of the display screen of the external pacemaker apparatus which concerns on one embodiment of this invention The figure which shows an example of the display screen of the external pacemaker apparatus which concerns on one embodiment of this invention Enlarged view of the waveform display part on the display screen shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an external view of an external pacemaker device 10 according to an embodiment of the present invention. The pacemaker main body 12 of the external pacemaker apparatus 10 shown in FIG. 1 is provided with connection terminal portions 14a and 14b for intracardiac electrodes, a connection terminal portion 16 for body surface electrodes, and a display portion 74.

  Relay cords 22a and 22b are connected to connection terminal portions 14a and 14b for intracardiac electrodes. Leads 23a and 23b to be inserted into the heart chamber 2 of the subject 1 are connected to the external pacemaker device 10 via the relay cords 22a and 22b.

  Electrodes (electrode portions) are provided at the tips of the leads 23a and 23b, and for example, electrode catheters are applied as the leads 23a and 23b provided with the electrodes. Here, two electrode catheters for ventricle and atrium are connected to the pacemaker main body 12, and both ventricular paging and atrial paging can be paged. By inserting the leads 23a and 23b into the heart chamber 2, the electrode provided at the distal end portion of the electrode catheter is placed in the heart chamber. Through this electrode, the pacemaker device 10 applies electrical stimulation (pace pulse) to the heart, or measures electrocardiogram information (ventricular electrocardiogram signal, atrial electrocardiogram signal such as an intracardiac electrocardiogram signal and a signal from the pacemaker device 10 from the heart. Take out the pace pulse).

  In addition, the body surface electrode 33 is connected to the external pacemaker device 10 through the induction cord 32 connected to the body surface electrode connection terminal portion 16. The body surface electrode 33 is attached to the body surface of the subject 1 and detects electrocardiogram information (body surface electrocardiogram information) from the body surface. Here, as the body surface surface electrode 33, A disposable bioelectrode (disposable electrode) that can be discarded after use is used from the viewpoint.

  As described above, the extracorporeal pacemaker device 10 according to the present embodiment receives the body surface electrocardiogram from the body surface electrode 33 in addition to the pacemaker function for acquiring pace pulses and intracardiac electrocardiograms during pacing via the leads 23a and 23b. It has a function of detecting and measuring body surface electrocardiogram information.

  FIG. 2 is a diagram showing a schematic configuration of a main part of the pacemaker device according to the embodiment of the present invention.

  The external pacemaker device 10 includes a pace pulse generation circuit 42, a pulse amplification unit 43, an electrocardiogram signal amplification unit 44, an A / D conversion unit 45, an electrocardiogram signal amplification unit 52, an A / D conversion unit 54, a CPU 61 (control unit), The pacemaker main body 12 accommodates an SRAM 62, a FROM 63, a light emitting unit (LED) 64, a sound report unit 65, a switch 66, an RTC 67, a card interface (card I / F) 72, a display unit 74, and power supply circuits 58 and 68. .

  The pace pulse generation circuit 42 generates pace pulses according to a program set in advance by the CPU 61. Specifically, the pace pulse generation circuit 42 receives patterns such as a predetermined rate and output value from the CPU 61, and generates electrical stimulation (pace pulse) for each of the ventricle and the atrium. The pace pulse generation circuit 42 outputs the generated pace pulse to the pulse amplification unit 43. The pace pulse amplified by the pulse amplifier 43 is applied to the leads 23a and 23b via the intracardiac electrode connection terminals 14a and 14b (see FIG. 1). As a result, a pace pulse of a predetermined pattern is given to the subject 1 via the electrode placed in the heart. In this way, the pace pulse generation circuit 42 supplies electrical stimulation to the myocardium of the subject 1 via the connected electrodes.

  Electrodes provided at the tips of the leads 23a and 23b and placed in the heart chamber can detect an intracardiac electrocardiogram signal (here, an intraventricular electrocardiogram signal and an intraatrial electrocardiogram signal) of the subject 1.

  The intracardiac electrocardiogram signals detected by the electrodes of the leads 23a and 23b reach the electrocardiogram signal amplifier 44 of the external pacemaker device 10 via the intracardiac electrode connection terminal portions 14a and 14b. The electrocardiogram signal amplification unit 44 amplifies the intracardiac electrocardiogram signal and outputs the amplified signal to the A / D conversion unit 45.

  The A / D conversion unit 45 converts an intracardiac electrocardiogram signal, which is an input analog signal, into a digital signal and outputs it to a CPU (central processing unit) 61.

  The electrocardiogram signal amplifier 52 receives a body surface electrocardiogram signal from the body surface electrode 33 connected to the body surface electrode 33 via the body surface connection terminal 16 (see FIG. 1). The electrocardiogram signal amplifier 52 amplifies the input body surface electrocardiogram signal and outputs the amplified signal to the A / D converter 54.

  The A / D converter 54 converts the body surface electrocardiogram signal, which is an input analog signal, into a digital signal and outputs the digital signal to the CPU 61.

  The electrocardiogram signal amplification unit 52 and the A / D conversion unit 54 are connected to the power supply circuit 58 and other components (the pace pulse generation circuit 42, the pulse amplification unit 43, the electrocardiogram signal amplification unit 44, the A / D conversion unit 45, the CPU 61, It is insulated from the SRAM 62, the FROM 63, the light emitting unit (LED) 64, the sound reporting unit 65, the switch 66, the RTC 67, the card interface (card I / F) 72, the display unit 74, and the power supply circuit 68).

  The power circuit 58 includes a battery 58a, a DC / DC converter 58b, and the like, and supplies necessary power to the electrocardiogram signal amplifier 52 and the A / D converter 54.

  The power supply circuit 68 includes a battery 68a, a DC / DC converter 68b, and the like. The power supply circuit 68 supplies necessary power to each component used as a pacemaker function. Each component used as a pacemaker function includes a pace pulse generation circuit 42, a pulse amplification unit 43, an electrocardiogram signal amplification unit 44, an A / D conversion unit 45, a CPU 61, an SRAM 62, a FROM 63, a light emitting unit 64, and a sound report unit. 65, a switch 66, an RTC 67, a card interface (card I / F) 72, and a display unit 74.

  The CPU 61 controls the entire apparatus. The CPU 61 includes a pace pulse generation circuit 42, A / D conversion units 45 and 54, a DC / DC conversion unit 68b, an SRAM 62, a light emitting unit 64, a sound report unit 65, a switch 66, an RTC 67, a card interface 72, and a display unit 74. It is connected.

  The CPU 61 receives a predetermined pattern when pacing is performed by a switch (setting unit) 66. Specifically, as the predetermined pattern set by the switch 66, an atrial output value (for example, 0.1 to 10 VV or 0.1 to 20 mA), a ventricular output value (for example, 0.1 to 10 VV or 0.1 to 20 mA), an AV interval (for example, , 0 to 300 ms), rate (for example, 30 to 180 ppm), and the like. Further, the CPU 61 uses a switch (setting unit) 66 to set a ventricular sensitivity (for example, 1 to 20 mV, asynchronous) and atrial sensitivity (for example, 1 to 20 mV, asynchronous) as set values when measuring (sensing) the intracardiac electrogram. ) Etc. are input. Note that these settings for pacing (predetermined pattern) and settings for sensing are input by placing a touch panel, which is a pressure-sensitive coordinate input device, on the LCD display surface of the display unit 74. You may do it. In this case, a key function corresponding to a display function displayed as a touch panel is assigned on the LCD screen, and key information selected by touching this key is input to the CPU 61.

  Further, the CPU 61 turns on and off the power of the apparatus itself (each unit) in response to an operation signal input from the switch 66. The CPU 61 controls each part of the external pacemaker device 10 by reading out data and programs used when driving each part stored in the FROM 63 and developing the data and program in the SRAM 62 and the like.

  An SRAM (Static Random Access Memory) 62 is used for storing data necessary in the course of processing performed by the CPU 61. Specifically, the SRAM 62 is a main memory used as a program memory for storing various programs, a setting storage memory for storing setting values, a work memory used when the CPU 61 performs data processing, and the like. The SRAM 62 also has a function as a so-called VRAM that records and draws information from the CPU 61 as display pattern data to be displayed on the display screen of the display unit 74. In place of the SRAM 62, SDRAM or DRAM may be used.

  The FROM (flash memory) 63 is a non-volatile memory used as, for example, a program memory for storing various programs, a fixed parameter memory for storing various fixed parameters, and the like, and retains stored contents even when the power is turned off. To do. Instead of the flash memory 204, a nonvolatile RAM in which a backup circuit using a RAM and a battery is integrated, or another nonvolatile memory such as an EEPROM may be used.

  The light emitting unit 64 is formed of an LED (Light Emitting Diode) or the like, and is turned on or blinks under the control of the CPU 61. For example, the light-emitting unit 64 includes a power lamp, an atrial stimulation pulse synchronization lamp, a ventricular stimulation pulse synchronization lamp, and the like, and when the power is on, an atrial stimulation pulse synchronization state, a ventricular stimulation pulse synchronization state, or the like based on an instruction from the CPU 61 Lights up.

  The sound reporting unit 65 includes a buzzer and a buzzer control circuit that performs buzzer sounding control under the control of the CPU 61.

  The switch 66 is a switch circuit for performing various settings, and includes a power switch (ON / ENTER), a select switch for switching setting items displayed on the display unit 74, a cursor switch, a pacing setting switch, and the like. . The pacing setting switch is used to set a predetermined pattern for pacing and a setting for sensing. The setting of the predetermined pattern when performing pacing includes an atrial output value (for example, 0.1 to 10 V or 0.1 to 20 mA) setting switch, a ventricular output value (for example, 0.1 to 10 V or 0.1 to 20 mA) setting switch, an AV interval (for example, 0 to 300 ms) is performed by a setting switch, a rate (for example, 30 to 180 ppm) setting switch, or the like. The setting for sensing is performed by a ventricular sensitivity (for example, 1 to 20 mV, asynchronous) setting switch and an atrial sensitivity (for example, 1 to 20 mV, asynchronous) setting switch. Setting information set by the switch circuit 66 can be displayed on the display unit 74.

  An RTC (Real Time Clock) 67 is a circuit for measuring time and outputs the time.

  A flash memory card (hereinafter referred to as “memory card”) 73 that functions as a recording medium is detachably connected to the card interface 72. The card interface 72 controls the interface between the pacemaker device 10 and the connected flash memory card 73. That is, the card interface 72 writes the electrocardiogram information to the memory card 73 in accordance with an instruction from the CPU 61. Here, the electrocardiogram information is information including both an electrocardiogram measured as a bioelectric signal and a pacemaker pulse measured as a signal from a pacemaker. The electrocardiogram is the measured intracardiac electrogram information and body surface electrocardiogram information, and the intracardiac electrogram includes a ventricular electrocardiogram and an atrial electrocardiogram. The card interface 72 also writes log information (operation log information) indicating an operation performed by the external pacemaker device 10 itself when measuring intracardiac electrocardiogram information or body surface electrocardiogram information. The operation log information is collected by the CPU 61. Further, the CPU 61 can acquire information from the memory card 73 and change the setting of the external pacemaker device 10 or the operation program.

  The card interface (recording unit) 72 can store past information about the subject by writing an operation log of the external pacemaker device 10 in the memory card 73 in accordance with an instruction from the CPU 61. The stored operation log can be confirmed by reading it with a measuring device such as a personal computer in which a memory card is mounted and software capable of reading the operation log is installed, and can provide information effective for patient treatment.

  The display unit (display) 74 displays electrocardiogram information via the CPU 61. That is, the display unit 74 displays on the screen the electrocardiogram waveform detected from the body surface electrode 33 and the leads 23a and 23b, the output pulse in paging, and the like. The display unit 74 includes, for example, a liquid crystal display (LCD) or an organic EL display.

  Specifically, the display unit 74 displays an intracardiac electrogram, a body surface electrocardiogram, and a pace marker from the CPU 61. Further, the display unit 74 displays log information of information related to the application of electrical stimulation to the myocardium as an operation log (operation log information) of the device when measuring (sensing) intracardiac electrocardiogram information. Further, the display unit 74 displays the measurement values (HR: heart rate, AS: atrial sensing number, AP: atrial pacing number, VS: ventricular sensing number, VP: ventricular pacing number obtained from the device setting information and the measured electrocardiogram waveform. , Event; the number of events in the electrocardiogram (see FIG. 4)) and the like are displayed. Here, a touch panel, which is a pressure-sensitive coordinate input device, is provided on the display surface of the LCD serving as the display unit 74, and a key function corresponding to the display function displayed as the touch panel is assigned. By selecting these keys, it is possible to change to a main screen (see FIG. 4) or a display screen (see FIG. 5) for displaying an electrocardiogram, or to select operation log recording, electrocardiogram measurement start, or the like.

  The functional configuration of the CPU 61 in the external pacemaker device 10 configured as described above will be described with reference to FIG.

  The CPU 61 performs various controls of main functional blocks shown in FIG. 3 according to a control program stored in the FROM 63.

  The CPU (control unit) 61 includes an electrical stimulation control unit (pace pulse generation control unit) 611, an intracardiac electrocardiogram measurement unit 612, a pace pulse measurement unit 613, a body surface electrocardiogram measurement unit 614, and a recording control unit 615. And a display control unit 616. Although not shown, the CPU 61 also has a function of controlling input / output of signals to components other than the units 611 to 616. For example, output control to the light emitting unit 64, output control to the sound report unit 65, and a switch 66, input of setting data is controlled.

  The electrical stimulation control unit 611 sets a predetermined pattern (rate, output value, etc.) for generating a pace pulse based on information input via the switch 66. By outputting the pattern set by the electrical stimulation control unit 611 to the pace pulse generation circuit 42, the pace pulse generation circuit 42 generates a pace pulse (electrical stimulation) and the subject 1 through the leads 23a and 23b. Pace pulses to the heart (ventricle, atrium).

  The electrical stimulation control unit 611 passes the set predetermined pattern to the display control unit 616 and also to the recording control unit 615. The time measured by the RTC 67 may be added to the setting information passed to the recording control unit 615.

  The intracardiac electrocardiogram measurement unit 612 measures (senses) intracardiac electrocardiogram information (intraventricular electrocardiogram information, intra-atrial electrocardiogram information) from the leads 23a and 23b. Specifically, the intracardiac electrocardiogram measurement unit 612 measures intracardiac electrocardiogram information detected from the leads 23a and 23b and converted into a digital signal by the A / D conversion unit 45. The intracardiac electrogram measurement unit 612 passes the measured intracardiac electrocardiogram information to the display control unit 616 and also to the recording control unit 615. When displayed on the display unit 74, the waveform is displayed as an intracardiac electrocardiogram (intraventricular electrocardiogram 81, intra-atrial electrocardiogram 82 (see FIGS. 5 and 6)). Further, the intracardiac electrocardiogram measurement unit 612 may add the time measured by the RTC 67 to the intracardiac electrocardiogram information to be passed to the recording control unit 615.

  The pace pulse measuring unit 613 measures pace pulses by sensing intracardiac electrocardiogram information from the leads 23a and 23b. Specifically, the pace pulse measurement unit 613 measures a pace pulse generated at a predetermined timing from intracardiac electrocardiogram information detected from the leads 23a and 23b and converted into a digital signal by the A / D conversion unit 45. The pace pulse measuring unit 613 passes the measured pace pulse to the display control unit 616 and also to the recording control unit 615. When displayed on the display unit 74, since the pace pulse is difficult to see, a pseudo signal is generated and displayed as a pace marker 83 (see FIGS. 5 and 6). Further, the pace pulse measuring unit 613 may give the time measured by the RTC 67 to the intracardiac electrocardiogram information passed to the recording control unit 615.

  The body surface electrocardiogram measurement unit 614 measures body surface electrocardiogram information detected by the body surface electrode 33 and converted into a digital signal by the A / D conversion unit 54. The body surface electrocardiogram measurement unit 614 passes the measured body surface electrocardiogram information to the display control unit 616 and also to the recording control unit 615. When displayed on the display unit 74, the waveform is displayed as a body surface electrocardiogram 84 (see FIGS. 5 and 6). Further, the time measured by the RTC 67 may be given to the body surface electrocardiogram information passed to the recording control unit 615.

  The recording control unit 615 collects and records information from the electrical stimulation control unit 611, the intracardiac electrocardiogram measurement unit 612, the pace pulse measurement unit 613, the body surface electrocardiogram measurement unit 614, and the like, and the memory card via the card interface 72 73.

  Further, the recording control unit 615 generates an operation log of each unit in the external pacemaker device 10 including pacing and sensing (intracardiac electrocardiogram measurement and body surface electrocardiogram measurement) together with the information. The recording control unit 615 records the collected information on the memory card 73 via the card interface 72 in association with the operation log. The recording control unit 615 may pass the generated operation log to the display control unit 616. Further, the recording control unit 615 may temporarily store the generated operation log in the SRAM 62 and store it in the FROM 63 when the CPU 61 does not read from the FROM 63.

  The recording control unit 615 automatically starts recording the operation log after a predetermined time (for example, 10 minutes) has elapsed after the power is turned on with the power switch (ON / ENTER) in the switch 66, for example. Also good. Further, when the recording is forcibly started on the touch panel, control for recording the collected data in the memory card 73 may be performed.

  The information output from the intracardiac electrocardiogram measurement unit 612, the pace pulse measurement unit 613, and the body surface electrocardiogram measurement unit 614 is passed to the recording control unit 615 and the display control unit 616. However, the present invention is not limited to this. Absent. The CPU 61 is provided with a selection function for selecting an output destination of information output from the intracardiac electrocardiogram measurement unit 612, the pace pulse measurement unit 613, and the body surface electrocardiogram measurement unit 614, and the output to the recording control unit 615 can be selected. It may be configured.

  The display control unit 616 performs display control of a display screen for displaying the electrocardiogram information on the display unit 74.

  The display control unit 616 displays information from the electrical stimulation control unit 611, the intracardiac electrocardiogram measurement unit 612, the pace pulse measurement unit 613, the body surface electrocardiogram measurement unit 614, the recording control unit 615, and the display control unit 616 on the display unit 74. To control.

  That is, the display control unit 616 causes the display unit 74 to display information such as an intracardiac electrocardiogram, a body surface electrocardiogram, and a pace marker from each unit 611 to 614 in real time. In addition, the display control unit 616 causes the display unit 74 to display an operation log that is operation information of the pacemaker device recorded by the recording control unit 615.

  The display control unit 616 receives information from the electrical stimulation control unit 611, the intracardiac electrocardiogram measurement unit 612, the pace pulse measurement unit 613, and the body surface electrocardiogram measurement unit 614, and generates display data corresponding thereto. The generated display data is recorded and drawn by the SRAM 62 as display pattern data to be displayed on the display screen. The pattern recorded and drawn by the SRAM 62 is displayed on the screen of the display unit 74.

  The display control unit 616 draws the data passed from the units 611 to 614 on the SRAM 62 in time series for each time passed, and displays the data on the display screen of the display unit 74. As a result, the body surface electrocardiogram and the intracardiac electrocardiogram collected by the extracorporeal pacemaker apparatus 10 can be visually confirmed by displaying the waveform.

  4 and 5 are diagrams showing an example of a display screen of the external pacemaker device according to the embodiment of the present invention. 4 is a diagram showing a main screen displayed on the display unit 74 of the external pacemaker device 10, and FIG. 5 is a diagram showing an electrocardiogram display screen displayed on the display unit 74. As shown in FIG. FIG. 6 is an enlarged view of a waveform display portion on the display screen shown in FIG.

  As shown in FIG. 4, the display unit 74 displays data input from the display control unit 616 as a main screen 741. On the main screen 741, a predetermined pattern 85 set for pacing is displayed together with a pacing mode 86, a remaining battery capacity 87, and the like.

  Then, for example, by pressing a waveform display key in the main screen 741, the display unit 74 displays an electrocardiogram as shown in FIG.

  Specifically, the information is input to the CPU 61 by pressing the “Hake” area which is a touch panel type event key arranged on the display screen of the display unit 74 shown in FIG. As a result, the CPU 61 displays the electrocardiogram display screen 742 on the display unit 74 as the display control unit 616.

  Here, on the electrocardiogram display screen 742, the intracardiac electrocardiogram 81, the atrial electrocardiogram 82, the pace marker 83, and the body surface electrode 33 based on the intracardiac electrocardiogram information acquired by the leads 32a and 23b (see FIG. 1) are acquired. A body surface electrocardiogram 84 based on the body surface electrocardiogram information is displayed in time series.

  Thereby, a patient's condition can be checked while performing pacing, and information for treatment of the patient can be provided.

  In addition to the intraventricular electrocardiogram 81, the intra-atrial electrocardiogram 82, the pace marker 83, and the body surface electrocardiogram 84, if the operation log information is displayed, the treatment contents for the patient can be confirmed in time series together with the patient's condition. Can provide useful information for treatment to patients.

  The extracorporeal pacemaker device 10 according to the present embodiment may be configured to display either the body surface electrocardiogram or the intracardiac electrocardiogram. In particular, the electrocardiogram on the body surface is a waveform often seen in the medical field, and can be visually recognized by displaying it on the display unit 74 provided in the external pacemaker device 10, so that it can quickly respond to changes in the patient's condition. .

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

10 External pacemaker device 12 Pacemaker body 23a, 23b Lead (electrode)
42 Pace pulse generation circuit (electric stimulation generator)
61 CPU (control unit)
72 Card interface (recording unit)
73 Memory card (recording medium)
74 Display unit 81 Intraventricular electrocardiogram (intracardiac electrocardiogram information)
82 ECG (intracardiac ECG information)
84 Body surface electrocardiogram 611 Electrical stimulation control unit 612 Intracardiac electrocardiogram measurement unit (intracardiac electrocardiogram information measurement unit)
613 Pace pulse measurement unit 614 Body surface electrocardiogram measurement unit 615 Recording control unit 616 Display control unit

Claims (8)

An electrode part to be worn by the subject;
An electrical stimulation generator for supplying electrical stimulation to the subject's myocardium;
An electrocardiogram information measuring unit capable of measuring electrocardiogram information from the electrode unit;
A pacemaker body that is installed outside the body of the subject and houses the electrical stimulation generator and the electrocardiogram information measurement unit;
A display unit provided in the pacemaker main body and displaying the measured electrocardiogram information in a waveform;
Comprising
An external pacemaker device. A recording unit for recording the electrocardiogram information;
The external pacemaker device according to claim 1. The recording unit records operation information of the pacemaker device together with the electrocardiogram information.
The extracorporeal pacemaker device according to claim 2. A recording medium that is detachably connected to the recording unit and on which the electrocardiogram information is recorded by the recording unit;
The extracorporeal pacemaker device according to claim 2. The electrode part attached to the subject is an electrode placed in the heart chamber of the subject,
The electrical stimulation generator is connected to the electrode and supplies electrical stimulation to the myocardium through the electrode,
The electrocardiogram information measurement unit includes an intracardiac electrocardiogram measurement unit that is connected to the electrode and measures intracardiac electrocardiogram information acquired through the electrode.
The display unit displays the waveform of the intracardiac electrocardiogram information;
The external pacemaker device according to any one of claims 1 to 4. The electrode part to be worn on the subject is a body surface electrode to be worn on the body surface of the subject,
The electrocardiogram information measurement unit includes a body surface electrocardiogram measurement unit that is connected to the body surface electrode and measures body surface electrocardiogram information acquired through the body surface electrode.
The display unit displays the body surface electrocardiogram information in a waveform;
The external pacemaker device according to any one of claims 1 to 4. The electrode portion mounted on the subject has an electrode that is placed in the heart chamber of the subject, and a body surface electrode that is mounted on the body surface of the subject,
The electrical stimulation generator is connected to the electrode and supplies electrical stimulation to the myocardium through the electrode,
The electrocardiogram information measurement unit is connected to the electrode, and is connected to the intracardiac electrocardiogram measurement unit for measuring intracardiac electrocardiogram information acquired through the electrode, and the body surface electrode. A body surface electrocardiogram measurement unit for measuring body surface electrocardiogram information to be acquired;
The display unit displays both the intracardiac electrocardiogram information and the body surface electrocardiogram information.
The extracorporeal pacemaker device according to claim 1 or 2. A recording unit for recording the intracardiac electrocardiogram information and the body surface electrocardiogram information, and operation information of the pacemaker device;
A recording medium that is detachably connected to the recording unit, and on which the recording unit records the intracardiac electrocardiogram information, the body surface electrocardiogram information, and the operation information of the pacemaker device;
The external pacemaker device according to claim 7.

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