CN106466181B - Synchronous fixed-point mapping electrode for endocardial membrane - Google Patents
Synchronous fixed-point mapping electrode for endocardial membrane Download PDFInfo
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- 238000013507 mapping Methods 0.000 title claims abstract description 22
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 14
- 239000012528 membrane Substances 0.000 title abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 53
- 239000010935 stainless steel Substances 0.000 claims abstract description 53
- 210000001174 endocardium Anatomy 0.000 claims abstract description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 230000007831 electrophysiology Effects 0.000 abstract 1
- 238000002001 electrophysiology Methods 0.000 abstract 1
- 230000001746 atrial effect Effects 0.000 description 9
- 230000000747 cardiac effect Effects 0.000 description 2
- 238000007675 cardiac surgery Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010003658 Atrial Fibrillation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005242 cardiac chamber Anatomy 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004696 endometrium Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
Description
技术领域Technical field
本发明涉及医疗器械技术领域，具体涉及一种心内外膜同步定点标测电极，其为记录心脏电信号的电极装置，尤其是能同步记录心内外膜电信号的电生理标测电极。The invention relates to the technical field of medical devices, and in particular to a synchronous fixed-point mapping electrode for endocardium and endocardium, which is an electrode device for recording cardiac electrical signals, in particular, an electrophysiological mapping electrode capable of synchronously recording electrical signals for endocardium and endocardium.
背景技术Background technique
目前，医学常用的电生理标测电极只能用于记录心内膜的电生理信号，称为电极导管，通过动脉和/或静脉穿刺将导管送入心腔进行心内膜电生理标测，管腔为实心的，较为柔软，内有金属导丝远端与电极相连，近端为导管插头，可接插于多道生理仪的连接转换器中。但在心外科房颤迷宫手术中，需要对心房表面和心房肌内膜的电生理信号进行定点同步标测，发现心内、外膜不同的电生理信号，以指导迷宫手术术式、评价手术效果。一般的电极导管无法做到同步记录心房内膜与心房表面相对应部位的电信号。Currently, electrophysiological mapping electrodes commonly used in medicine can only be used to record endocardial electrophysiological signals, called electrode catheters. The catheters are sent into the heart chamber through arterial and/or venous puncture for endocardial electrophysiological mapping. The lumen is solid and relatively soft, with a metal guide wire at the distal end connected to the electrode, and a catheter plug at the proximal end, which can be plugged into the connection converter of a multi-channel physiological instrument. However, during maze surgery for atrial fibrillation in cardiac surgery, it is necessary to perform fixed-point synchronous mapping of electrophysiological signals on the atrial surface and atrial endomyocardium, and to discover different electrophysiological signals in the endocardium and epicardium to guide the maze surgical procedure and evaluate the surgical effect. . General electrode catheters cannot simultaneously record electrical signals from corresponding parts of the atrial endometrium and atrial surface.
发明内容Contents of the invention
为了做到同步定点记录心房内膜与心房表面的电信号，本发明提供一种心内外膜同步定点标测电极，该电极不仅能记录心房外膜电信号，而且能同步记录相应部位对应的心内膜处电信号。In order to achieve synchronous fixed-point recording of electrical signals of the atrial endocardium and the atrial surface, the present invention provides a synchronous fixed-point mapping electrode of the atrial endocardium and the atrial epicardium. Electrical signals at the intima.
为实现上述目的，本发明采用的技术方案是：In order to achieve the above objects, the technical solution adopted by the present invention is:
一种心内外膜同步定点标测电极，该标测电极包括心外膜电极、心内膜电极、电极支架、不锈钢中空柱体和不锈钢管体；其中：An epicardial and epicardial synchronous fixed-point mapping electrode, which includes an epicardial electrode, an endocardial electrode, an electrode holder, a stainless steel hollow cylinder, and a stainless steel tube body; wherein:
所述心外膜电极和心内膜电极分别用于记录心外膜和心内膜的电信号；所述心外膜电极是由电极柱和心外膜电极触点分别连接于导线两端形成，所述心内膜电极是由电极柱和心内膜电极触点分别连接于导线两端形成；所述心外膜电极和心内膜电极都为双极。The epicardial electrode and the endocardial electrode are used to record the electrical signals of the epicardium and endocardium respectively; the epicardial electrode is formed by an electrode post and an epicardial electrode contact connected to both ends of a wire respectively. , the endocardial electrode is formed by an electrode post and an endocardial electrode contact connected to both ends of a wire respectively; the epicardial electrode and the endocardial electrode are both bipolar.
所述电极支架用于固定心外膜电极和心内膜电极；所述电极支架为聚四氟乙烯材质，电极支架的两端分别设置柱状凸台，电极支架一端的柱状凸台内(沿其轴向)开设电极通道(优选为圆柱状通道)，所述心外膜电极穿装于电极通道内，心外膜电极触点包埋于电极通道末端；电极支架另一端的柱状凸台内(沿其轴向)开设方柱状通道，其内设有不锈钢中空柱体，不锈钢中空柱的末端固定连接不锈钢管体；所述心内膜电极穿装于不锈钢中空柱体和不锈钢管体内，心内膜电极的心内膜电极触点伸出不锈钢管体末端并由聚四氟乙烯材料包覆。The electrode holder is used to fix the epicardial electrode and the endocardial electrode; the electrode holder is made of polytetrafluoroethylene, and columnar bosses are respectively provided at both ends of the electrode holder. axial) to open an electrode channel (preferably a cylindrical channel), the epicardial electrode is inserted into the electrode channel, and the epicardial electrode contact is embedded in the end of the electrode channel; in the cylindrical boss at the other end of the electrode holder ( A square columnar channel is opened along its axial direction, and a stainless steel hollow cylinder is provided inside it. The end of the stainless steel hollow cylinder is fixedly connected to the stainless steel pipe body; the endocardial electrode is installed in the stainless steel hollow cylinder and the stainless steel pipe body. The endocardial electrode contact of the membrane electrode extends out of the end of the stainless steel tube body and is covered with polytetrafluoroethylene material.
所述方柱状通道的形状与不锈钢中空柱体的形状相适应，所述方柱状通道的侧壁上开设一个平行于其轴向的空槽，该空槽的设置使不锈钢中空柱体能够在适当外力作用下在方柱状通道内滑动。The shape of the square columnar channel is adapted to the shape of the stainless steel hollow cylinder. An empty groove parallel to its axial direction is opened on the side wall of the square columnar channel. The arrangement of the empty groove enables the stainless steel hollow cylinder to be positioned appropriately. It slides in the square columnar channel under the action of external force.
所述心外膜电极的电极柱在电极通道外，导线穿装于电极通道内；所述心内膜电极的电极柱在不锈钢中空柱体外，导线穿装于不锈钢中空柱体和不锈钢管体内。The electrode post of the epicardial electrode is outside the electrode channel, and the wire is threaded in the electrode channel; the electrode post of the endocardial electrode is outside the stainless steel hollow cylinder, and the wire is threaded in the stainless steel hollow cylinder and the stainless steel tube body.
所述不锈钢管体为弯曲状，不锈钢管体的末端与电极支架上的电极通道的末端相对应。The stainless steel pipe body is curved, and the end of the stainless steel pipe body corresponds to the end of the electrode channel on the electrode holder.
本发明设计原理及有益效果如下：The design principles and beneficial effects of the present invention are as follows:
心外科手术或动物实验中，胸骨中正切口暴露心脏，右房壁缝荷包后穿刺，将心外膜电极插入心房内与心内膜接触，同时将心内膜电极对应放置，经导线与电极柱相连插入多道电生理记录仪对应接口，进行心电信号的记录。During cardiac surgery or animal experiments, the heart is exposed through a midline sternotomy incision, the right atrial wall is sutured and the purse string is punctured, and the epicardial electrode is inserted into the atrium to contact the endocardium. At the same time, the endocardial electrode is placed correspondingly, and the lead and electrode post are Connect and insert into the corresponding interface of the multi-channel electrophysiological recorder to record ECG signals.
本发明心内外膜同步定点标测电极在手术过程中可以同时记录心外膜和心内膜相对应部位的电信号，方便分析心脏电信号的传导特性，电信号记录合理，结构简便。The epicardial and epicardial synchronous fixed-point mapping electrode of the present invention can simultaneously record the electrical signals of the corresponding parts of the epicardium and endocardium during the operation, which facilitates the analysis of the conduction characteristics of the cardiac electrical signals. The electrical signal recording is reasonable and the structure is simple.
附图说明Description of the drawings
图1是本发明心内外膜同步定点标测电极整体外观图。Figure 1 is an overall appearance view of the epicardial and endocardial synchronous fixed-point mapping electrode of the present invention.
图2是心内外膜标测电极的纵剖面构造图。Figure 2 is a longitudinal cross-sectional structural diagram of an endocardial and endocardial mapping electrode.
图3是本发明心内外膜标测电极透视图(对应于图1的俯视图)。Figure 3 is a perspective view of the endocardial and endocardial mapping electrode of the present invention (corresponding to the top view of Figure 1).
图4是本发明心内膜电极的局部构造图。Figure 4 is a partial structural diagram of the endocardial electrode of the present invention.
图5是本发明心内外膜标测电极的整体侧面照片图。Figure 5 is an overall side photograph of the endocardial and endocardial mapping electrode of the present invention.
图中：1-心外膜电极触点；2-心内膜电极触点；3-电极柱；4-导线；5-电极支架；51-电极通道；52-方柱状通道；53-不锈钢中空柱体；54-不锈钢管体；6-聚四氟乙烯。In the picture: 1-epicardial electrode contact; 2-endocardial electrode contact; 3-electrode post; 4-lead; 5-electrode holder; 51-electrode channel; 52-square columnar channel; 53-stainless steel hollow Cylinder; 54-stainless steel pipe body; 6-polytetrafluoroethylene.
具体实施方式Detailed ways
以下结合附图详述本发明。The present invention will be described in detail below with reference to the accompanying drawings.
如图1-5所示，本发明心内外膜同步定点标测电极包括心外膜电极、心内膜电极、电极支架5、不锈钢中空柱体53和不锈钢管体54；其中：所述心外膜电极是由电极柱3和心外膜电极触点1分别连接于导线4两端形成，所述心内膜电极是由电极柱3和心内膜电极触点2分别连接于导线4两端形成。所述心外膜电极与心内膜电极都为双极，导线都采用航空专用导线。As shown in Figures 1-5, the epicardial and epicardial synchronous fixed-point mapping electrodes of the present invention include an epicardial electrode, an endocardial electrode, an electrode holder 5, a stainless steel hollow cylinder 53 and a stainless steel tube body 54; wherein: the epicardial electrode The membrane electrode is formed by an electrode post 3 and an epicardial electrode contact 1 connected to both ends of a lead 4 respectively. The endocardial electrode is formed by an electrode post 3 and an endocardial electrode contact 2 connected to both ends of the lead 4 respectively. form. The epicardial electrode and the endocardial electrode are both bipolar, and the conductors are all aviation-specific conductors.
所述电极支架5是由聚四氟乙烯材料制成，电极支架5的两端分别设置柱状凸台，电极支架一端的柱状凸台内(沿其轴向)开设圆柱状电极通道51，所述心外膜电极的导线穿装于电极通道51内，两个心外膜电极触点1包埋于电极通道51末端，心外膜电极的电极柱位于电极通道51外；电极支架5另一端的柱状凸台内(沿其轴向)开设方柱状通道52，其内嵌入不锈钢中空柱体53，不锈钢中空柱体53的末端固定连接不锈钢管体54；所述心内膜电极的导线穿装于不锈钢中空柱体和不锈钢管体内，心内膜电极触点2伸出不锈钢管体54末端并由聚四氟乙烯6包覆，心内膜电极的电极柱位于不锈钢中空柱外。The electrode holder 5 is made of polytetrafluoroethylene material. Cylindrical bosses are provided at both ends of the electrode holder 5. A cylindrical electrode channel 51 is provided in the columnar boss at one end of the electrode holder (along its axial direction). The leads of the epicardial electrode are installed in the electrode channel 51, the two epicardial electrode contacts 1 are embedded at the ends of the electrode channel 51, and the electrode posts of the epicardial electrode are located outside the electrode channel 51; the other end of the electrode holder 5 A square columnar channel 52 is opened in the cylindrical boss (along its axial direction), and a stainless steel hollow cylinder 53 is embedded in it. The end of the stainless steel hollow cylinder 53 is fixedly connected to the stainless steel pipe body 54; the wires of the endocardial electrode are threaded through In the stainless steel hollow cylinder and the stainless steel tube body, the endocardial electrode contact 2 extends out of the end of the stainless steel tube body 54 and is covered with polytetrafluoroethylene 6. The electrode post of the endocardial electrode is located outside the stainless steel hollow post.
所述方柱状通道的形状与不锈钢中空柱体的形状相适应，方柱状通道的侧壁上开设一个平行于其轴向的空槽，该空槽的设置并配合电极支架的聚聚四氟乙烯材质，使得不锈钢中空柱体能够在适当外力作用下在方柱状通道内滑动。The shape of the square columnar channel is adapted to the shape of the stainless steel hollow cylinder. A hollow groove parallel to its axial direction is opened on the side wall of the square columnar channel. The hollow groove is arranged and matched with the polytetrafluoroethylene of the electrode bracket. The material allows the stainless steel hollow cylinder to slide in the square columnar channel under the action of appropriate external force.
所述不锈钢管体的前端与不锈钢中空柱体固定连接在一起，不锈钢管体平滑弯曲，其末端与电极支架上的电极通道的末端相对应。通过不锈钢中空柱体在方柱状通道内的滑动能够调整心外膜电极触点1和心内膜电极触点2之间的距离。The front end of the stainless steel pipe body is fixedly connected to the stainless steel hollow cylinder. The stainless steel pipe body is smoothly curved, and its end corresponds to the end of the electrode channel on the electrode holder. The distance between the epicardial electrode contact 1 and the endocardial electrode contact 2 can be adjusted by sliding the stainless steel hollow cylinder in the square column channel.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214164Y (en) * | 1993-12-17 | 1995-12-06 | 王永高 | Insertion electrode for recording multi-layer inner heart wall one-way action potential |
| CN2761140Y (en) * | 2005-01-20 | 2006-03-01 | 华中科技大学同济医学院附属协和医院 | Potentiometric recording electrode capable of local administration and one-way action |
| CN101199416A (en) * | 2006-09-06 | 2008-06-18 | 韦伯斯特生物官能公司 | Correlation of cardiac electrical maps with body surface measurements |
| CN104783785A (en) * | 2015-04-03 | 2015-07-22 | 白融 | Dual-pole cardiac muscle tissue one-way action potential recording electrode |
| CN204889980U (en) * | 2015-08-21 | 2015-12-23 | 金岩 | Electrode is surveyed to synchronous fixed point mark of intracardiac adventitia |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2679275B1 (en) * | 2012-06-28 | 2014-05-14 | Peter Osypka Stiftung | Epicardial mapping electrode |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214164Y (en) * | 1993-12-17 | 1995-12-06 | 王永高 | Insertion electrode for recording multi-layer inner heart wall one-way action potential |
| CN2761140Y (en) * | 2005-01-20 | 2006-03-01 | 华中科技大学同济医学院附属协和医院 | Potentiometric recording electrode capable of local administration and one-way action |
| CN101199416A (en) * | 2006-09-06 | 2008-06-18 | 韦伯斯特生物官能公司 | Correlation of cardiac electrical maps with body surface measurements |
| CN104783785A (en) * | 2015-04-03 | 2015-07-22 | 白融 | Dual-pole cardiac muscle tissue one-way action potential recording electrode |
| CN204889980U (en) * | 2015-08-21 | 2015-12-23 | 金岩 | Electrode is surveyed to synchronous fixed point mark of intracardiac adventitia |
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