CN203694406U - Self-energized cardiac pacemaker - Google Patents
Self-energized cardiac pacemaker Download PDFInfo
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- CN203694406U CN203694406U CN201320870127.XU CN201320870127U CN203694406U CN 203694406 U CN203694406 U CN 203694406U CN 201320870127 U CN201320870127 U CN 201320870127U CN 203694406 U CN203694406 U CN 203694406U
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- main body
- generating main
- cardiac pacemaker
- power generation
- heart
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Abstract
The utility model provides a self-energized cardiac pacemaker, comprising a heart rhythm monitoring portion, a pulse generator, an exciting electrode, and a power generation portion. The power generation portion comprises a power generation main body, an output unit, an electric energy storage unit, a fixing unit, and a packaged layer. The power generation main body is in a multilayered film structure, comprising a piezoelectric material layer on the center of the power generation main body and electrode layers on two sides of the piezoelectric material layer. The power generation main body is adhered to the surface of a heart to acquire energy of the heart to generate electric energy. The output unit is connected with the electrode layers, and is used to output current generated by the power generation main body to the electric energy storage unit. The electric energy storage unit is used to store electric energy and supply power for the heart rhythm monitoring portion and the pulse generator. The fixing unit is on the edge of the power generation main body, and is used to fix the power generation main body on an epicardium. The packaged layer is covered on the surfaces of the power generation main body, the output unit, the electric energy storage unit, and the fixing unit. The self-energized cardiac pacemaker does not need to change batteries, and can be used for whole life.
Description
Technical field
This utility model relates to a kind of self energizing cardiac pacemaker, belongs to medical instruments field.
Background technology
For the not good and frank slow arrhythmia patient of various kinds of drug therapeutic effect, often need to install the electronic cardiac pacemaker of implanted, thereby improve patient's heart rate and cardiac output.But existing implanted electronic cardiac pacemaker all uses battery powered.Generally speaking, the service time of battery of SSI type list chamber pacemaker is 8 years; The service time of battery of SSIR type list chamber pacemaker is 7 years; The service time of battery of DDD type dual chamber pacemaker is 6 years; The service time of battery of DDDR type dual chamber pacemaker is only 5 years.When changing battery by operating mode after battery depletion.In addition, in actual use, there is larger difference according to the difference of patient self heart rate in pacemaker batteries service time.
But the battery of changing automatic electronic defibrillator by the mode of operation both can cause physiological misery and psychological fear and anxiety to patient, also can increase the financial burden of patient and family thereof.
Utility model content
For addressing the above problem, this utility model has adopted following structure:
This utility model provides a kind of self energizing cardiac pacemaker, it is characterized in that, comprising: for monitoring the rhythm of the heart chip monitoring of cardiac electrical activity; For generation of the pulse generator of electricity irritation; For electricity irritation being conducted to the stimulating electrode of heart; And be the Power Generation Section of rhythm of the heart chip monitoring, pulse generator power supply.Wherein, Power Generation Section comprises generating main body, output unit, energy storage unit, fixed cell and encapsulated layer, generating main body is multi-layer film structure, comprise the piezoelectric material layer that is positioned at generating main center, and be positioned at the electrode layer of piezoelectric material layer both sides, generating main body is by being attached at heart surface to gather the energy of heartbeat and to be converted into electric energy, output unit is connected with electrode layer, export to energy storage unit for the electric current that generating main body is produced, energy storage unit is also pulse generator for storage of electrical energy, rhythm of the heart chip monitoring and stimulating electrode power supply.Fixed cell is positioned at the edge of generating main body, for generating main body is fixed on to visceral pericardium.Encapsulated layer is covered in the surface of generating main body, output unit, energy storage unit and fixed cell.
In addition, in self energizing cardiac pacemaker of the present utility model, can also there is such feature: wherein, generating main body be shaped as tetragon, fixed cell is positioned at the centre on tetragonal two narrow limits.
In addition, in self energizing cardiac pacemaker of the present utility model, can also there is such feature: wherein, generating main body be shaped as triangle, fixed cell is positioned at leg-of-mutton three summits.
In addition, in self energizing cardiac pacemaker of the present utility model, can also there is such feature: wherein, generating main body be shaped as Long Circle.
In addition, in self energizing cardiac pacemaker of the present utility model, can also have such feature: wherein, piezoelectric material layer contains nanoscale piezoelectric, nanoscale piezoelectric is any one in piezoquartz, piezoelectric ceramics and organic piezopolymer.
In addition, in self energizing cardiac pacemaker of the present utility model, can also there is such feature: wherein, piezoelectric material layer is one deck zinc oxide nano-wire array at least.
In addition, in self energizing cardiac pacemaker of the present utility model, can also there is such feature: wherein, piezoelectric material layer can be the single or multiple lift structure of nano-wire array.
In addition, in self energizing cardiac pacemaker of the present utility model, can also there is such feature: wherein, output unit has output electrode and current rectifying and wave filtering circuit.
The effect of utility model and effect
According to self energizing cardiac pacemaker of the present utility model, because its generating main body is directly attached at heart surface, therefore can effectively the contraction of heart and diastole be made to nanometer piezoelectric generation deformation, thereby be converted into electric energy.
On the other hand, because the generating main body of this utility model self energizing cardiac pacemaker is directly attached at heart surface, therefore as long as heartbeat, the generating main body of self energizing cardiac pacemaker of the present utility model can produce electric energy, therefore can be throughout one's life for self energizing cardiac pacemaker provides electric energy, avoid operation to change necessity of battery.
In addition, because the generating main body of this utility model self energizing cardiac pacemaker adopts the fixing mode of point, electricity generation system is fixed on to visceral pericardium, can effectively gather on the one hand the energy that heart movement produces, also can not produce significantly impact to the contraction of heart and diastole campaign on the other hand.
Brief description of the drawings
Fig. 1 is that the generating main body of the self energizing cardiac pacemaker of this utility model embodiment mono-is tetragonal schematic diagram,
Fig. 2 is the partial section of the generating main body of the self energizing cardiac pacemaker of this utility model embodiment mono-;
Fig. 3 is that the generating main body of the self energizing cardiac pacemaker of this utility model embodiment bis-is leg-of-mutton schematic diagram;
Fig. 4 is that the generating main body of this utility model variation is oblong schematic diagram; And
Fig. 5 is the circuit diagram of this utility model embodiment.
Detailed description of the invention
The detailed description of the invention of this utility model self energizing cardiac pacemaker is described below in conjunction with accompanying drawing,
< embodiment mono->
Fig. 1 is that the generating main body of self energizing cardiac pacemaker in embodiment 1 is tetragonal schematic diagram, and as shown in Figure 1, self energizing cardiac pacemaker 10 has Power Generation Section 200, pulse generator 17 and stimulating electrode 18.Wherein, Power Generation Section 200 comprises generating main body 11, output unit, energy storage unit 16, fixed cell 22 and encapsulated layer.Generating main body 21 is rectangle, respectively has a fixed cell 22, for generating main body 11 is fixed on to visceral pericardium with long axis direction along systaltic direction on two narrow limits of rectangle.While implanting generating main body, manifest heart by operating mode, by generating main body, along systaltic direction setting and fixed part is sewn on visceral pericardium, make to generate electricity main body and visceral pericardium fit, and the main body of now generating electricity can be along with the generation deformation of beating of heart.
Fixed cell 22 is made up of encapsulated layer, and the inside of fixed cell 22 do not have the electrification structure such as electrode or piezoelectric, therefore in the time using suture fixing, can not destroy the electrification structure of generating main body 21.Generating main body remainder except fixing with fixed cell 22 is fixing, and deformation can better occur the main body that is beneficial to make to generate electricity in systaltic process.Because generating main body has adopted rectangle, and installation direction is consistent with systaltic direction, therefore can well gather the mechanical energy that heart contraction produces.
Output electrode 14 is exported to energy storage unit 16 for the electric energy that generating main body is produced, before energy storage unit 16, also there is current rectifying and wave filtering circuit 15, carry out rectifying and wave-filtering for the electric current that output electrode 14 is exported, thereby make the electric current of output more stable.Energy storage unit 16 is the pulse generator 17 to self energizing cardiac pacemaker by supply of electrical energy, and by stimulating electrode cardiac stimulus, makes heart recover to beat.
Fig. 2 is the sectional view of the generating main part of the self energizing cardiac pacemaker of this utility model embodiment, as shown in Figure 2, generating main body 11 is multi-layer film structure, its central core is piezoelectric material layer 31, piezoelectric material layer 31 is made up of ZnO nanowire array, the both sides of piezoelectric material layer 31 are respectively electrode layer 32 and electrode layer 33, electrode layer 32 and electrode layer 33 (not shown) that is connected with output electrode 14 respectively.Encapsulated layer 34 is positioned at the outside of electrode layer electrode layer 32 and electrode layer 33, encapsulated layer 34 has good insulating properties, simultaneously encapsulated layer 34 also has good biocompatibility, and other structure of make to generate electricity main body 12 and self energizing cardiac pacemaker causes immunoreation at the Shi Buhui that implants.The surface of each ingredient of self energizing cardiac pacemaker 20 is all coated with the encapsulated layer 34 of one deck insulation, and encapsulated layer 34 uses macromolecule polymeric material.
Fig. 5 is the circuit diagram of this utility model embodiment, as shown in Figure 5, generating main body 21 is connected with current rectifying and wave filtering circuit 15, and the electric energy that generating main body 21 produces charges to power storage list 16 after current rectifying and wave filtering circuit 15, and energy storage unit 16 is used to electrical appliance to power.
The effect of embodiment and effect
According to the self energizing cardiac pacemaker of the present embodiment, because generating main body has adopted rectangle, and installation direction is consistent with systaltic direction, in the time of heart contraction, can make rectangle produce maximum deformation, therefore can well gather the mechanical energy that heart contraction produces.
In addition, because fixed cell has only been fixed two minor faces of the rectangle of generating main body, the other parts of generating main body are fixing, therefore in systaltic process, not only can not limit the contraction of heart, also can produce to greatest extent deformation, thereby produce more electric energy simultaneously.
On the other hand, due to self energizing cardiac pacemaker of the present utility model be using heartbeat produce kinetic energy as energy source, therefore as long as heartbeat, self energizing cardiac pacemaker of the present utility model can produce power, therefore can be throughout one's life for the electronic equipment of implant into body provides electric energy, avoid changing the trouble of battery.
In addition, because generating main body adopts multi-layer film structure, and wherein adopted nano level piezoelectric, therefore the thin thickness of whole generating main body, compliance are good, and contraction and diastolic function to heart have no significant effect.
< embodiment bis->
Fig. 3 is that the Power Generation Section of this utility model embodiment is leg-of-mutton self energizing cardiac pacemaker schematic diagram, as shown in Figure 3, the generating main body 21 of self energizing cardiac pacemaker 20 of the present utility model is triangle, leg-of-mutton each vertex position all has a fixed cell 22, output electrode 14 is connected with electrode layer (seeing Fig. 2), current rectifying and wave filtering circuit 15 is connected with output electrode 14, and energy storage unit 16 is connected in the electric energy producing for storing generating main body 21 after current rectifying and wave filtering circuit 15.
Generating main body 21 be shaped as triangle, in the time being installed on visceral pericardium, utilize the fixed cell 22 being positioned on an Atria summit that generating main body 21 is fixed on visceral pericardium.And leg-of-mutton each limit of generating main body 21 is unfixing, so neither can limits contraction and the diastole of heart, thereby also contribute to piezoelectric material layer along with the motion generation deformation of heart produces electric energy.
Generating main body 21 is made into leg-of-mutton advantage and is more to gather the energy of heartbeat, this is because not only have horizontal contraction and diastole in the process of heartbeat, also there are longitudinal contraction and diastole, in the time adopting leg-of-mutton shape, a leg-of-mutton summit is set to the direction towards the apex of the heart, and two other summit is set to parallel with the direction of heart cross-direction shrinkage, no matter be that heart cross-direction shrinkage is longitudinal contraction like this, all can drive generating main body 21 to be out of shape.Therefore the energy that leg-of-mutton shape can more utilize heartbeat to produce than tetragonal shape.
Fixed cell 22 is extended and forms in corresponding position by encapsulated layer, and piezoelectric and electrode material are not contained in the inside of fixed cell 22, therefore can avoid damaging piezoelectric material layer and electrode layer in the time sewing up.
Energy storage unit 16 is the pulse generator 17 to self energizing cardiac pacemaker by supply of electrical energy, and by stimulating electrode cardiac stimulus, makes heart recover to beat.
Fig. 2 is the sectional view of the self energizing cardiac pacemaker of this utility model embodiment, as shown in Figure 2, the central core of generating main body is piezoelectric material layer 31, piezoelectric material layer 31 is made up of ZnO nanowire array, the both sides of piezoelectric material layer 31 are respectively electrode layer 32 and electrode layer 33, and electrode layer 32 is connected with output electrode 14 respectively with electrode layer 33.Encapsulated layer 34 is positioned at the outside of electrode layer 32 and electrode layer 33.The surface of whole self energizing cardiac pacemaker 11 is all coated with the encapsulated layer 34 of one deck good insulating, encapsulated layer 34 can use macromolecule polymeric material, and encapsulated layer 34 has good biocompatibility, make self energizing cardiac pacemaker 11 cause rejection at the Shi Buhui that implants.
The effect of embodiment and effect
According to the self energizing cardiac pacemaker of the present embodiment, because generating main body has adopted leg-of-mutton shape, and installation direction is that a tip of three shapes is facing to the direction of the apex of the heart, two other is most advanced and sophisticated parallel to the direction of shrinking with Xin Zang Transverse, therefore both can gather Xin Zang Transverse and also can gather to shrinking the mechanical energy producing the mechanical energy that heart longitudinal contraction produces, compared with the generating main body of rectangle, the efficiency of collecting energy is higher.
In addition, because fixed cell has only been fixed leg-of-mutton three summits, the other parts of generating main body are unfixing, therefore in systaltic process, not only can not limit the contraction of heart, also can produce to greatest extent deformation, thereby produce more electric energy simultaneously.
On the other hand, due to self energizing cardiac pacemaker of the present utility model be using heartbeat produce kinetic energy as energy source, therefore as long as heartbeat, self energizing cardiac pacemaker of the present utility model can produce power, therefore can be throughout one's life for the electronic equipment of implant into body provides electric energy, avoid changing the trouble of battery.
In addition, because generating main body adopts multi-layer film structure, and wherein adopted nano level piezoelectric, therefore the thin thickness of whole generating main body, compliance are good, and contraction and diastolic function to heart have no significant effect.
< variation >
This variation is compared with embodiment mono-, and except being shaped as Long Circle of generating main body, arranging of other is all identical.As shown in Figure 4, generating main body 42 be shaped as Long Circle, on oblong two summits, place has fixed cell 41, generating main body 42 be shaped as oblong advantage be four jiaos unlike rectangle so sharp-pointed, can alleviate the damage to heart.
Certainly, the shape of the generating main body of self energizing cardiac pacemaker of the present utility model can be various shape, is not limited only to triangle, tetragon and Long Circle in above-mentioned two embodiment.
And, the nanoscale piezoelectric that piezoelectric material layer of the present utility model contains, the ZnO nano-wire that is not limited to mention in embodiment, and can be any one in piezoquartz, piezoelectric ceramics and organic piezopolymer.And piezoquartz be shaped as film shape, piezoelectric ceramics be shaped as nano-wire array, organic piezopolymer is film shape.The material and the shape that adopt can according to circumstances be selected.
Claims (7)
1. a self energizing cardiac pacemaker, is characterized in that, comprising:
For monitoring the rhythm of the heart chip monitoring of cardiac electrical activity;
For generation of the pulse generator of electricity irritation;
For electricity irritation being conducted to the stimulating electrode of heart; And
For the Power Generation Section of described rhythm of the heart chip monitoring, the power supply of described pulse generator,
Wherein, described Power Generation Section comprises generating main body, output unit, energy storage unit, fixed cell and encapsulated layer,
Described generating main body is multi-layer film structure, comprises the piezoelectric material layer that is positioned at described generating main center, and is positioned at the electrode layer of piezoelectric material layer both sides, and described generating main body is by being attached at heart surface to gather the energy of heartbeat and to be converted into electric energy,
Described output unit is connected with described electrode layer, exports to described energy storage unit for the electric current that generating main body is produced,
Described energy storage unit is also described pulse generator, described rhythm of the heart chip monitoring and the power supply of described stimulating electrode for storage of electrical energy,
Described fixed cell is positioned at the edge of described generating main body, for generating main body is fixed on to visceral pericardium,
Described encapsulated layer is covered in the surface of described generating main body, described output unit, described energy storage unit and described fixed cell.
2. self energizing cardiac pacemaker as claimed in claim 1, is characterized in that:
Wherein, described generating main body be shaped as tetragon, described fixed cell is positioned at the centre on tetragonal two narrow limits.
3. self energizing cardiac pacemaker as claimed in claim 1, is characterized in that:
Wherein, described generating main body be shaped as triangle, described fixed cell is positioned at leg-of-mutton three summits.
4. self energizing cardiac pacemaker as claimed in claim 1, is characterized in that:
Wherein, described generating main body be shaped as Long Circle.
5. self energizing cardiac pacemaker as claimed in claim 1, is characterized in that:
Wherein, described piezoelectric material layer is one deck zinc oxide nano-wire array at least.
6. self energizing cardiac pacemaker as claimed in claim 5, is characterized in that:
Wherein, described piezoelectric material layer can be the single or multiple lift structure of nanoscale piezoelectric.
7. self energizing cardiac pacemaker as claimed in claim 1, is characterized in that:
Wherein, output unit has output electrode and current rectifying and wave filtering circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870127.XU CN203694406U (en) | 2013-12-26 | 2013-12-26 | Self-energized cardiac pacemaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870127.XU CN203694406U (en) | 2013-12-26 | 2013-12-26 | Self-energized cardiac pacemaker |
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| Publication Number | Publication Date |
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| CN203694406U true CN203694406U (en) | 2014-07-09 |
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| CN201320870127.XU Expired - Fee Related CN203694406U (en) | 2013-12-26 | 2013-12-26 | Self-energized cardiac pacemaker |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104639107A (en) * | 2014-11-25 | 2015-05-20 | 西安交通大学 | Positive pacing pulse generation circuit applied to cardiac pacemaker |
| CN104740768A (en) * | 2013-12-26 | 2015-07-01 | 中国人民解放军第二军医大学 | Self-energized cardiac pacemaker |
| CN104826232A (en) * | 2015-05-22 | 2015-08-12 | 中国科学技术大学 | Vibration energy supply system for cardiac pacemaker |
| CN105963858A (en) * | 2016-04-22 | 2016-09-28 | 哈尔滨工业大学 | Preparation method of cardiac pacemaker capable of collecting heart movement energy and storing energy |
| CN105994004A (en) * | 2016-05-19 | 2016-10-12 | 上海应特宠企业管理有限公司 | Pet real-time monitor system |
| CN108379740A (en) * | 2018-01-19 | 2018-08-10 | 南华大学 | A kind of self energizing device and its installation method |
| CN110011565A (en) * | 2019-04-02 | 2019-07-12 | 上海交通大学 | A kind of energy collecting device and implanted self energizing medical electronics device |
| CN112436757A (en) * | 2019-08-26 | 2021-03-02 | 河北工程大学 | Micro-nano flexible power generation system of heart |
-
2013
- 2013-12-26 CN CN201320870127.XU patent/CN203694406U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104740768A (en) * | 2013-12-26 | 2015-07-01 | 中国人民解放军第二军医大学 | Self-energized cardiac pacemaker |
| CN104740768B (en) * | 2013-12-26 | 2017-07-18 | 中国人民解放军第二军医大学 | Self energizing pacemaker |
| CN104639107A (en) * | 2014-11-25 | 2015-05-20 | 西安交通大学 | Positive pacing pulse generation circuit applied to cardiac pacemaker |
| CN104639107B (en) * | 2014-11-25 | 2017-04-26 | 西安交通大学 | Positive pacing pulse generation circuit applied to cardiac pacemaker |
| CN104826232A (en) * | 2015-05-22 | 2015-08-12 | 中国科学技术大学 | Vibration energy supply system for cardiac pacemaker |
| CN104826232B (en) * | 2015-05-22 | 2017-11-28 | 中国科学技术大学 | A kind of pacemaker vibrates energy supplying system |
| CN105963858A (en) * | 2016-04-22 | 2016-09-28 | 哈尔滨工业大学 | Preparation method of cardiac pacemaker capable of collecting heart movement energy and storing energy |
| CN105994004A (en) * | 2016-05-19 | 2016-10-12 | 上海应特宠企业管理有限公司 | Pet real-time monitor system |
| CN108379740A (en) * | 2018-01-19 | 2018-08-10 | 南华大学 | A kind of self energizing device and its installation method |
| CN110011565A (en) * | 2019-04-02 | 2019-07-12 | 上海交通大学 | A kind of energy collecting device and implanted self energizing medical electronics device |
| CN112436757A (en) * | 2019-08-26 | 2021-03-02 | 河北工程大学 | Micro-nano flexible power generation system of heart |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20161226 |