CN108355247A - A kind of electrocardio implantation equipment - Google Patents
A kind of electrocardio implantation equipment Download PDFInfo
- Publication number
- CN108355247A CN108355247A CN201810134547.9A CN201810134547A CN108355247A CN 108355247 A CN108355247 A CN 108355247A CN 201810134547 A CN201810134547 A CN 201810134547A CN 108355247 A CN108355247 A CN 108355247A
- Authority
- CN
- China
- Prior art keywords
- equipment
- electrocardio
- modules
- icd
- ccm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/378—Electrical supply
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
Abstract
The invention discloses a kind of electrocardios to be implanted into equipment.The equipment includes control unit, ICD modules and CCM modules, and control unit, ICD modules and CCM modules are set in a shell；Wherein, control unit includes communication unit, battery module, monitoring modular and protection module；Monitoring modular is for monitoring ICD modules and the heart state of CCM modules and user；Protection module is configured to the operation of testing result control the ICD modules and CCM modules of monitoring modular.The electrocardio implantation equipment of the present invention has the function of ICD and CCM simultaneously, and can regulate and control to cooperate mutually；The equipment of the present invention efficiently solves ICD batteries and exhausts, patient needs replacing the risk and expense of equipment due to introducing rechargeable battery.
Description
Technical field
The present invention relates to the field of medical instrument technology, relate more specifically to a kind of electrocardio implantation equipment.
Background technology
For the narrow Patients with Chronic Heart Failure of QRS wave, CCM is used for long-term treatment, rebuilds myocardial function.ICD is as one
Grade protection, for preventing cardiac sudden death.For being equipped with the patient of ICD and CCM simultaneously in vivo, lost when malignant cardiac rhythm occurs for patient
When ordinary affair part, ICD can enter the state of alert, but be independently of the CCM equipment of ICD and unaffected, also in working condition, this
It is breakneck for the patient.
Therefore, this field is badly in need of having the function of ICD and CCM while exploitation is a kind of new, and can regulate and control collaboration work mutually
The electrocardio of work is implanted into equipment.
Invention content
The object of the present invention is to provide a kind of, and the electrocardio with ICD and CCM synergistic functions is implanted into equipment.
In the present invention, the present invention provides a kind of electrocardios to be implanted into equipment.The equipment includes control unit, ICD modules
With CCM modules, described control unit, ICD modules and CCM modules are set in a shell；
Wherein, described control unit includes communication unit, battery module, stimulating unit, monitoring modular and protection module；
The monitoring modular is for monitoring the ICD modules and the heart state of the CCM modules and user；
The testing result that the protection module is configured to the monitoring modular controls the ICD modules and described
The operation of CCM modules.
The equipment further includes the adapter head being mounted on outside the shell.
The equipment further includes right atrial lead and right ventricular lead, the right atrial lead and right ventricular lead respectively with
The adapter head connection.
The battery unit includes charhing unit and implantable capacitance.
Further include antenna in the adapter head.
The electrocardio implantation equipment further includes voltage transformation module.
The electrocardio implantation equipment further includes motion perception module.The electrocardio implantation equipment further includes aware circuit.
The electrocardio implantation equipment is communicated with external base station.
The charhing unit includes rechargeable battery, coil and temperature control modules.
In another preferred example, it is surrounded by colloidal silica outside the adapter head.
In another preferred example, the coil is placed in titanium shell.
In another preferred example, the coil is individually placed in the colloidal silica outside titanium shell.
In another preferred example, the capacity of the rechargeable battery is 100-400mAh.
Electrocardio implantation equipment further includes the electric quantity monitoring module of rechargeable battery, the electric quantity monitoring module with
The communication unit communication.
In another preferred example, the communication unit includes alarm module.
In another preferred example, defibrillation module, pacing module, sensing module, communication unit, the stimulating unit of the equipment
It is connect respectively with described control unit, the charhing unit is connect with the defibrillation module, and the implantable capacitance is removed with described
Module of quivering connects.
Main advantages of the present invention include：
(a) equipment of the invention can be directed to patient's offer treatment of 70% chronic heart failure (QRS wave is narrow) plus prevent
One-stop scheme；
(b) equipment of the invention efficiently solves ICD batteries and exhausts, patient needs more due to introducing rechargeable battery
The risk and expense of exchange device；
(c) equipment of the invention efficiently solves the limitation of ICD and extraneous communication due to introducing rechargeable battery
(power saving consideration), can considerably increase acquisition of the doctor to patient data.
It should be understood that within the scope of the present invention, above-mentioned each technical characteristic of the invention and have in below (eg embodiment)
It can be combined with each other between each technical characteristic of body description, to form a new or preferred technical solution.As space is limited, exist
This no longer tires out one by one states.
Description of the drawings
Connection shape when Fig. 1 is the structural schematic diagram and its work of one embodiment of the electrocardio implantation equipment of the present invention
State；
Fig. 2 is that the electrocardio of the present invention is implanted into equipment working state logic diagram；
Fig. 3 is that the electrocardio of the present invention is implanted into the stimulating unit monophasic pulses if oscillogram of equipment；
Fig. 4 is that the electrocardio of the present invention is implanted into the two-way phase timing chart of stimulating unit of equipment.
Specific implementation mode
The present inventor after extensive and in-depth study, develops a kind of electrocardio with ICD and CCM synergistic functions for the first time
It is implanted into equipment.Electrocardio implantation equipment can be when monitoring that malignant arrhythmia event occurs for patient, and terminal CCM is transported immediately
Row, and enter the ICD states of alert.I.e. once confirming malignant arrhythmia, CCM modules will be automatically disabled use, until a sound
It is opened after check.The electrocardio, which is implanted into equipment, also has low battery protection module, does not have completely depleted (at least exist in the electricity of equipment
When enough 6 defibrillations of the electricity of equipment) when send out alarm.
The present invention is completed on this basis.
Term
As used herein, term " ICD " refers to the automatic defibrillation device of implanted (Implantable Cardioverter
Defibrillator, ICD).Two very thin electric wires connect ICD and one or more ventricles in heart.Heart to
ICD sends electric signal.If heart disorderly beats and beats too fast, ICD can send electric pulse or electric shock to heart, to restore
Normal cardiac rhythm.Defibrillation is one kind makes the too fast or irregular rhythm of the heart restore normal method by electric shock.
As used herein, term " CCM " refers to (cardiac contractile force enhancing, Cardiac Contractility
Modulation, CCM) it is a full-implantation type, myocardial contractive power, chronic heart failure (QRS are adjusted by electro photoluminescence
Wave is narrow) myocardial contractive power adjustment equipment.The equipment in myocardium absolute refractory period by carrying out non-excitability electro photoluminescence, to enhance
The intensity of ventricular contraction and the pumpability of heart.The implantation of the equipment is similar to pacemaker：2 vena caves are implanted into 3 and lead
Line is in atrium dextrum and right ventricle.5~7 hours of stimulation daily need charging in one week primary.After patient is implanted into the equipment, the death rate
It can decline to a great extent.Meanwhile most Patients with Cardiac Failure are required for implantation ICD, are used for defibrillation.
The electrocardio implantation equipment of the present invention includes shell, adapter head (header), right atrial lead (including 2 surveys
Amount/pacing electrode), a right ventricular lead (including 2 measurement/pacing electrodes and an independent defibrillation coil).
In another preferred example, the electrocardio implantation equipment further includes that a left ventricle monitoring conducting wire is alternative.The electrocardio
Implantation equipment function module include：MCU (include related algorithm), Sensing circuits (aware circuit), voltage conversion circuit,
RF telecommunication circuits (the tune machine software on the occlusion body outer base stations RF and computer), shell and Header (adapter head), Shocking electricity
Road (defibrillation circuit, including corresponding impedance measurement), implantable capacitance, implanted rechargeable battery, charging module/external charging
Equipment/external charge coil and stimulating unit (including pace-making, CCM therapies and corresponding impedance measurement) etc..
In another preferred example, electrocardio implantation equipment further include defibrillation conducting wire/atrium monitoring conducting wire/ventricle monitoring with
Stimulation leads/left ventricle monitors conducting wire.
In another preferred example, the stimulating unit is voltage source；The stimulus waveform range that can be generated is as follows：
Single pulse：It is single-phase, overlap biphasic impulse；Stimulate pulsewidth 25us-100ms；The oscillogram of monophasic pulses if is as shown in Figure 3.
Train of pulse：Frequency of stimulation 1-1000Hz (inverses of stimulus intervals)
Usually, stimulation access is on 4 tunnels.
The parameter area of the stimulating unit is as shown in table 1 below：
The parameter area of 1 stimulating unit of table
| Voltage stimulation amplitude | 1.94~15V |
| Stimulate pulsewidth | 50us~100ms |
| Frequency of stimulation | 1~500Hz |
For cardiac pacing function (or defibrillation need quick pace-making), using monophasic pulses if (with 1 defibrillator of patent without
It is different).And for CCM functions, using the diphasic pulse of high-amplitude (7-15V).
Diphasic pulse：So-called two-phase refers to boost pulse there are two phase, Symmetrical, and oscillogram is as shown in Figure 4.
In an embodiment of the present invention, stimulation spacing generally tends to be infinitely small.
Charging module/external charging device/external charge coil
Charhing unit includes coil, the internal rechargeable battery and temperature control modules of implantable.
Coil can be placed in titanium shell or in the colloidal silica being individually placed in outside titanium shell；
The capacity of implantable rechargeable battery is usually in 100-400mAh；
The adaptive charging circuit of temperature control module ensures under any charging situation, and charging temperature is not higher than 2 degrees Celsius, and
Charging rate is more than 75mA/h；Coil refers in particular to, such a to be placed on hull outside, the coil knot of silica gel adapter inner
Structure, as shown in Figure 3.
External charging device includes battery, charging circuit and external charge coil.(RF energy coupling)
For in battery charge reminder, traditional CCM does not consider the problems of that battery exhausts and charges not in time, but CCM+ICD
It must assure that system at least 6 times remaining (because of most 6 defibrillations, if continuous 6 times not all right, just rescuing not back) defibrillation capabilities
When begin to alarm.
Consider that each defibrillation needs the energy of 36-40J, we require to alarm less than 240J when battery can provide energy
(alarm signal is spread out of by RF).
In the method for operation：
Traditional CCM is high-energy stimulation in 1-2 hours one day；Treatment time is adjustable；
The treatment of traditional ICD is when malignant arrhythmia event occurs；But the detection of ICD is to be continued for
's.
The operation method of the equipment of the present invention, is divided into 4 states：
(1) all it is completely to monitor within most times.Assuming that monitoring the possibility of malignant arrhythmia event
Property, you can enter the ICD states of alert；
(2) within adjustable a small number of times, by the requirement of doctor, (the citing of CCM therapies is carried out：Daily 2 hours) and monitoring
And it deposits；
(3) be the detection for CCM therapies being ensured not and being influenced to malignant arrhythmia event.We take a kind of 20s CCM to control
It treats, the method for 40s monitorings；In this way, it is assumed that the case where arrhythmia cordis occur, we can interrupt CCM therapies immediately, be warned into ICD
Ring state；After system monitoring to the possibility of malignant cardiac rhythm event, into the ICD states of alert (i.e. ICD algorithms)；
(4) it after confirming malignant arrhythmia event, is treated；Once confirming malignant arrhythmia, CCM will be automatic
It is forbidden to use, is opened after causing doctor to check.
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In the following examples, the experimental methods for specific conditions are not specified, usually according to conventional strip
Part, or according to the normal condition proposed by manufacturer.Unless otherwise stated, otherwise percentage and number are weight percent and weight
Number.
It should be noted that in the claim and specification of this patent, such as first and second or the like relationship
Term is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying
There are any actual relationship or orders between these entities or operation.Moreover, the terms "include", "comprise" or its
Any other variant is intended to non-exclusive inclusion so that including the processes of a series of elements, method, article or
Equipment includes not only those elements, but also includes other elements that are not explicitly listed, or further include for this process,
Method, article or the intrinsic element of equipment.In the absence of more restrictions, being wanted by what sentence " including one " limited
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.
Embodiment 1
As shown in Figs. 1-2, a kind of embodiment of typical new electricity implantation equipment of the present invention.It includes titanium that the electrocardio, which is implanted into equipment,
Alloy shell, be equipped in the shell sequentially connected charging module, implanted rechargeable battery, voltage conversion circuit and
MCU (controller).Further include implantable capacitance, communication module, defibrillation circuit, stimulating unit and sensing electricity in the shell
Road (aware circuit).Equipment further includes the adapter head being mounted on outside shell, and colloidal silica is surrounded by outside the adapter head.Equipment further includes the right side
Atrial lead and right ventricular lead, right atrial lead and right ventricular lead are connect with adapter head respectively.It further include day in adapter head
Line.Electrocardio implantation equipment is communicated by antenna and external RF base station.The base stations RF and tune machine software communication.The equipment is also wrapped
Include external coil.Coil is individually placed in the colloidal silica outside titanium shell.External coil can be connect with external charging device.
All references mentioned in the present invention is incorporated herein by reference, independent just as each document
It is incorporated as with reference to such.In addition, it should also be understood that, after reading the above teachings of the present invention, those skilled in the art can
To be made various changes or modifications to the present invention, such equivalent forms equally fall within model defined by the application the appended claims
It encloses.
Claims (10)
1. a kind of electrocardio is implanted into equipment, which is characterized in that the equipment includes control unit, ICD modules and CCM modules, described
Control unit, ICD modules and CCM modules are set in a shell；
Wherein, described control unit includes communication unit, battery module, stimulating unit, monitoring modular and protection module；
The monitoring modular is for monitoring the ICD modules and the heart state of the CCM modules and user；
The testing result that the protection module is configured to the monitoring modular controls the ICD modules and the CCM moulds
The operation of block.
2. equipment as described in claim 1, which is characterized in that the equipment further includes the adaptation being mounted on outside the shell
Head.
3. equipment as claimed in claim 2, which is characterized in that the equipment further includes right atrial lead and right ventricular lead,
The right atrial lead and right ventricular lead are connect with the adapter head respectively.
4. equipment as described in claim 1, which is characterized in that the battery unit includes charhing unit and implantable capacitance.
5. electrocardio as claimed in claim 2 is implanted into equipment, which is characterized in that further include antenna in the adapter head.
6. electrocardio as described in claim 1 is implanted into equipment, which is characterized in that the electrocardio implantation equipment further includes voltage conversion
Module.
7. electrocardio as described in claim 1 is implanted into equipment, which is characterized in that the electrocardio implantation equipment further includes motion perception
Module.
8. electrocardio as described in claim 1 is implanted into equipment, which is characterized in that the electrocardio implantation equipment is carried out with external base station
Communication.
9. electrocardio as claimed in claim 4 is implanted into equipment, which is characterized in that the charhing unit includes rechargeable battery, line
Circle and temperature control modules；
In another preferred example, it is surrounded by colloidal silica outside the adapter head；
In another preferred example, the coil is placed in titanium shell；
In another preferred example, the coil is individually placed in the colloidal silica outside titanium shell；
In another preferred example, the capacity of the rechargeable battery is 100-400mAh.
10. electrocardio as described in claim 1 is implanted into equipment, which is characterized in that the electrocardio implantation equipment further includes can
The electric quantity monitoring module of rechargeable battery, the electric quantity monitoring module are communicated with the communication unit；
In another preferred example, the communication unit includes alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134547.9A CN108355247A (en) | 2018-02-09 | 2018-02-09 | A kind of electrocardio implantation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134547.9A CN108355247A (en) | 2018-02-09 | 2018-02-09 | A kind of electrocardio implantation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108355247A true CN108355247A (en) | 2018-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810134547.9A Pending CN108355247A (en) | 2018-02-09 | 2018-02-09 | A kind of electrocardio implantation equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111714771A (en) * | 2019-12-16 | 2020-09-29 | 苏州无双医疗设备有限公司 | Implanted medical device with ventricular rate diagnostic function |
| CN111714113A (en) * | 2020-04-30 | 2020-09-29 | 苏州无双医疗设备有限公司 | Implanted medical device for sensing electrocardiosignals |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001030139A2 (en) * | 1999-10-25 | 2001-05-03 | Impulse Dynamics N.V. | Anti-arrhythmic device and a method of delivering anti-arrhythmic cardiac therapy |
| CN101612451A (en) * | 2009-07-31 | 2009-12-30 | 广东省医疗器械研究所 | Chargeable implant cardiac pacemaker device and charging method thereof |
| US7765001B2 (en) * | 2005-08-31 | 2010-07-27 | Ebr Systems, Inc. | Methods and systems for heart failure prevention and treatments using ultrasound and leadless implantable devices |
| CN106413807A (en) * | 2014-01-10 | 2017-02-15 | 心脏起搏器股份公司 | System and methods for treating cardiac arrhythmias |
| CN106512218A (en) * | 2016-12-31 | 2017-03-22 | 北京品驰医疗设备有限公司 | Temperature-control charging implantable medical device cooperation work system |
| CN106573149A (en) * | 2014-06-25 | 2017-04-19 | 心脏起搏器股份公司 | Systems and methods for treating cardiac arrhythmias |
-
2018
- 2018-02-09 CN CN201810134547.9A patent/CN108355247A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001030139A2 (en) * | 1999-10-25 | 2001-05-03 | Impulse Dynamics N.V. | Anti-arrhythmic device and a method of delivering anti-arrhythmic cardiac therapy |
| US7765001B2 (en) * | 2005-08-31 | 2010-07-27 | Ebr Systems, Inc. | Methods and systems for heart failure prevention and treatments using ultrasound and leadless implantable devices |
| CN101612451A (en) * | 2009-07-31 | 2009-12-30 | 广东省医疗器械研究所 | Chargeable implant cardiac pacemaker device and charging method thereof |
| CN106413807A (en) * | 2014-01-10 | 2017-02-15 | 心脏起搏器股份公司 | System and methods for treating cardiac arrhythmias |
| CN106573149A (en) * | 2014-06-25 | 2017-04-19 | 心脏起搏器股份公司 | Systems and methods for treating cardiac arrhythmias |
| CN106512218A (en) * | 2016-12-31 | 2017-03-22 | 北京品驰医疗设备有限公司 | Temperature-control charging implantable medical device cooperation work system |
Non-Patent Citations (3)
| Title |
|---|
| B ALGHAMDI: "Cardiac Contractility Modulation Device and Subcutaneous Implantable Cardioverter Defibrillator Combination：A New Hope for Heart Failure Patients with Low Ejection Fraction and Narrow QRS Complex", 《JOURNAL OF CARDIOVASCULAR MEDICINE AND CARDIOLOGY》 * |
| 张开滋，田野等: "《临床心力衰竭学》", 31 October 2014, 湖南科学技术出版社 * |
| 魏毅东: "《心力衰竭的现代管理》", 30 June 2017, 同济大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111714771A (en) * | 2019-12-16 | 2020-09-29 | 苏州无双医疗设备有限公司 | Implanted medical device with ventricular rate diagnostic function |
| CN111714771B (en) * | 2019-12-16 | 2023-12-29 | 苏州无双医疗设备有限公司 | Implantable medical device with ventricular rate diagnostic function |
| CN111714113A (en) * | 2020-04-30 | 2020-09-29 | 苏州无双医疗设备有限公司 | Implanted medical device for sensing electrocardiosignals |
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