CN103027750B - Electrical ablation balloon radiofrequency catheter in percutaneous renal artery - Google Patents
Electrical ablation balloon radiofrequency catheter in percutaneous renal artery Download PDFInfo
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- CN103027750B CN103027750B CN201210484617.6A CN201210484617A CN103027750B CN 103027750 B CN103027750 B CN 103027750B CN 201210484617 A CN201210484617 A CN 201210484617A CN 103027750 B CN103027750 B CN 103027750B
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Abstract
The invention relates to an electrical ablation balloon radiofrequency catheter in the percutaneous renal artery. The electrical ablation balloon radiofrequency catheter comprises a catheter, an electrical ablation balloon and an ablation electrode plate, wherein the tail part of the catheter is provided with a connector, the head end of the catheter is provided with the electrical ablation balloon, the electrical ablation balloon is communicated with a contrast agent filling pipeline through the catheter, the contrast agent filling pipeline is arranged in the catheter and passes through the connector to be connected with a pressure pump with contrast agents, the outer surface of the electrical ablation balloon is provided with the ablation electrode plate in spiral arrangement, the ablation electrode plate is connected with a radiofrequency ablation instrument through a conducting wire, and the conducting wire is embedded in the catheter, enters the connector from the tail part of the catheter and extends out from a port of the connector. The electrical ablation balloon radiofrequency catheter has the advantages that the operation is simple and convenient, the positioning is precise, the leaning is reliable, and the manual error and the operative complications possibly generated in the operation process are reduced to the greatest degree.
Description
Technical field
The invention belongs to radio frequency ablation catheter instrument field in percutaneous renal artery, particularly relate to electricity in a kind of percutaneous renal artery and melt sacculus radiofrequency catheter.
Background technology
In recent years, there is the new technique of percutaneous catheter sympathetic renal nerve radiofrequency ablation intractable hypertension in the world.The method cuts off sympathetic renal nerve by radio-frequency ablation procedure, and does not affect the domination of other abdominal paries, pelvis or lower limb nerve, reaches the object avoiding severe complication while blood pressure lowering.
Renal artery sympathetic nerve ablation is extensively carried out in worldwide, is applied in the treatment of intractable hypertension, and obtains significant curative effect.At present, conventional ablation instruments is the Symplicity ablation catheter of Medtronic company exploitation.This ablation catheter is with reference to traditional ablation catheter theory, and adopt particular radio-frequency instrument, ablation method is mainly: adopt spiral ablation path, pointwise is melted, and patient oneself withdraws conduit, melts scheme and is mainly: temperature control (55 degree), 8w, 120s.Melt 4-6 point, each point is at a distance of 0.5cm.
But current Symplicity ablation catheter still exists certain defect, such as: 1. need operator oneself to withdraw conduit, cannot accurately locate; 2. accurately cannot judge the degree reclined; 3. also cannot accurate measure distance between each ablation points.
Summary of the invention
Technical problem to be solved by this invention is to provide electricity in a kind of percutaneous renal artery and melts sacculus radiofrequency catheter, and this catheter manipulation is easy, registration, reclines reliable, reduces the human error that may occur in operation process and postoperative complication to greatest extent.
The technical solution adopted for the present invention to solve the technical problems is: provide electricity in a kind of percutaneous renal artery to melt sacculus radiofrequency catheter, comprise conduit, ablating electrode sheet and electricity melt sacculus, described catheter tail is equipped with adapter, described conduit head end melts sacculus with electricity, described electricity is melted sacculus and is communicated with contrast agent filling tube by conduit, described contrast agent filling tube is contained in conduit, be connected through the compression pump of adapter with band contrast agent, described electricity melts sacculus outer surface the ablating electrode sheet arranged in the shape of a spiral, described ablating electrode sheet is connected with radiofrequency melting instrument by wire, described wire is embedded in conduit, described wire enters adapter from catheter tail, described wire stretches out from the port of adapter.
Described electricity melts ablating electrode sheet that sacculus outer surface arranges in the shape of a spiral to be given prominence to electricity and melts balloon surface.
Electricity melts sacculus outer surface annular groove, and described electricity melts the ablating electrode sheet that sacculus outer surface arranges in the shape of a spiral and is embedded in groove, and described ablating electrode sheet outer rim melts sacculus outer wall with electricity and becomes smooth linking.
Described electrode slice is circular or polygon.
Described catheter tail also separates cool brine filling tube, it is double-decker that described electricity melts sacculus, skin is communicated with cool brine filling tube by conduit, described cool brine filling tube is contained in conduit, through adapter and connects cool brine pad device, and described electricity is melted sacculus internal layer and is communicated with contrast agent filling tube by conduit.
The ablating electrode sheet that described electricity melts sacculus outer surface has 4 to 12.
Described electricity melts sacculus and becomes olive shape, long 15 to 40 millimeters, diameter 4 millimeters to 8 millimeters.
The long 70-160 centimetre of described conduit, tube chamber size 5F ~ 8F(lumen diameter 1.67mm ~ 2.67mm).
Described ablating electrode sheet size is 2 to 6 square millimeters, 2 millimeters ~ 10 millimeters, each ablating electrode sheet interval.
It is monolayer or bilayer that electricity melts balloon design, if monolayer, can inject the contrast agent of pre-cooling.If double-deck, the inside one deck is common layer, can inject contrast agent, observes electricity under fluoroscopy and melt sacculus and to recline situation when being convenient to open; Outside one deck can be made with special material, makes this layer under any circumstance can the temperature remains within the normal range or low temperature, injects cool brine, make electricity melt balloon surface and keep low temperature during use from tail end of conduit.
Electricity melts the low temperature state of balloon surface, and ablating electrode is effectively worked; Observe electricity by fluoroscopic apparatus and melt balloon position, ablating electrode can accurately be located by operator, makes ablating electrode recline reliably, and by controlling the energy size of ablating electrode, can need renal artery by treatment, pointwise is melted, and multiple spot melts, or successively melts.
Ablating electrode sheet can be embedded in electricity and melt in the groove of balloon surface, and the joint portion outer rim that ablating electrode sheet and electricity melt sacculus is smooth, can not impact, avoid unnecessary inflammation and complication in patient body when conveying and expansion to the renal artery of patient.
Beneficial effect
The invention has the advantages that: easy and simple to handle, registration, recline reliable, reduce the human error that may occur in operation process and postoperative complication to greatest extent.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention's electricity melts when sacculus 4 is double-deck
Fig. 2 is that electricity of the present invention melts sacculus 4 and is with reeded structural representation.
Fig. 3 is the generalized section that the present invention's electricity melts when sacculus 4 is double-deck.
Fig. 4 is the partial schematic diagram that the present invention's electricity melts sacculus 4 surface ablation electrode slice 6 position.
Fig. 5 is that schematic diagram is looked on a left side of Fig. 4.
Fig. 6 is that schematic diagram is looked on the right side of Fig. 4.
Fig. 7 is the schematic rear view of Fig. 4.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
As shown in Figures 1 to 3, in a kind of percutaneous renal artery, electricity melts sacculus radiofrequency catheter, comprise conduit 1, ablating electrode sheet 6 and electricity melt sacculus 4, described conduit 1 afterbody is equipped with adapter 10, described conduit 1 head end melts sacculus 4 with electricity, described electricity is melted sacculus 4 and is communicated with contrast agent filling tube 3 by conduit 1, described contrast agent filling tube 3 is contained in conduit 1, be connected through the compression pump of adapter 10 with band contrast agent, described electricity melts sacculus 4 outer surface the ablating electrode sheet 6 arranged in the shape of a spiral, described ablating electrode sheet 6 is connected with radiofrequency melting instrument by wire 2, described wire 2 is embedded in conduit 1, described wire 2 enters adapter 10 from conduit 1 afterbody, described wire 2 stretches out from the port 7 of adapter 10.
Described electricity melts ablating electrode sheet 6 that sacculus 4 outer surface arranges in the shape of a spiral to be given prominence to electricity and melts sacculus 4 surface.
Electricity melts sacculus 4 outer surface annular groove, and described electricity melts the ablating electrode sheet 6 that sacculus 4 outer surface arranges in the shape of a spiral and is embedded in groove, and described ablating electrode sheet 6 outer rim and electricity melt sacculus 4 outer wall and become smooth linking.
Described electrode slice is circular or polygon.
Described conduit 1 afterbody also separates cool brine filling tube 9, described electricity melts sacculus 4 for double-decker, skin is communicated with cool brine filling tube 9 by conduit 1, described cool brine filling tube 9 is contained in conduit 1, connects cool brine pad device through adapter 10, and described electricity is melted sacculus 4 internal layer and is communicated with contrast agent filling tube 3 by conduit 1.
The ablating electrode sheet 6 that described electricity melts sacculus 4 outer surface has 12.
Described electricity melts sacculus 4 one-tenth olive shape, long 15 to 40 millimeters, diameter 4 millimeters to 8 millimeters.
The long 70-160 centimetre of described conduit 1, tube chamber size 5F ~ 8F(lumen diameter 1.67mm ~ 2.67mm).
Described ablating electrode sheet 6 size is 1 to 6 square millimeter, 2 millimeters ~ 10 millimeters, each ablating electrode sheet 6 interval.
During use, by 6F ~ 8F sheath pipe and 6F ~ 7FLIMA conduit, electricity is melted sacculus 4 and send into renal artery, under X-ray examination, electricity is melted sacculus 4 and be accurately positioned the position that renal artery needs to melt, by compression pump, contrast agent is injected electricity and melt sacculus 4, radiography can to recline renal artery situation by clear view conduit under fluoroscopy, determine electricity melt sacculus fully adherent after, the skin melting sacculus to electricity by external cooling device injects cool brine or liquid nitrogen, make electricity in ablation procedure melt sacculus and keep low temperature, control ablating electrode sheet 6 to discharge, pointwise priority or multiple spot melt renal artery simultaneously, reach treatment intractable hypertension, heart failure, the effect of the sympathetic nerve excessive activation diseases such as arrhythmia.
Claims (5)
1. in a percutaneous renal artery, electricity melts sacculus radiofrequency catheter, comprise conduit (1), ablating electrode sheet (6) and electricity melt sacculus (4), it is characterized in that, described conduit (1) afterbody is equipped with adapter (10), described conduit (1) head end melts sacculus (4) with electricity, described electricity is melted sacculus (4) and is communicated with contrast agent filling tube (3) by conduit (1), described contrast agent filling tube (3) is contained in conduit (1), be connected through the compression pump of adapter (10) with band contrast agent, described electricity melts sacculus (4) outer surface the ablating electrode sheet (6) arranged in the shape of a spiral, described ablating electrode sheet (6) is connected with radiofrequency melting instrument by wire (2), described wire (2) is embedded in conduit (1), described wire (2) enters adapter (10) from conduit (1) afterbody, described wire (2) stretches out from the port (7) of adapter (10), described electricity melts the outstanding electricity of ablating electrode sheet (6) that sacculus (4) outer surface arranges in the shape of a spiral and melts sacculus (4) surface, electricity melts sacculus (4) outer surface annular groove, described electricity melts the ablating electrode sheet (6) that sacculus (4) outer surface arranges in the shape of a spiral and is embedded in groove, described ablating electrode sheet (6) outer rim melts sacculus (4) outer wall with electricity and becomes smooth linking, described electrode slice is circular or polygon, described conduit (1) afterbody also separates cool brine filling tube (9), it is double-decker that described electricity melts sacculus (4), the outer conduit (1) that passes through is communicated with cool brine filling tube (9), described cool brine filling tube (9) is contained in conduit (1), cool brine pad device is connected through adapter (10), described electricity is melted sacculus (4) internal layer and is communicated with contrast agent filling tube (3) by conduit (1).
2. in a kind of percutaneous renal artery according to claim 1, electricity melts sacculus radiofrequency catheter, it is characterized in that, the ablating electrode sheet (6) that described electricity melts sacculus (4) outer surface has 4 to 12.
3. in a kind of percutaneous renal artery according to claim 1, electricity melts sacculus radiofrequency catheter, it is characterized in that, described electricity melts sacculus (4) and becomes olive shape, long 15 to 40 millimeters, diameter 4 millimeters to 8 millimeters.
4. in a kind of percutaneous renal artery according to claim 1, electricity melts sacculus radiofrequency catheter, it is characterized in that, described conduit (1) long 70-160 centimetre, tube chamber size 5F ~ 8F.
5. in a kind of percutaneous renal artery according to claim 1, electricity melts sacculus radiofrequency catheter, it is characterized in that, described ablating electrode sheet (6) size is 1 to 6 square millimeter, each 2 millimeters ~ 10 millimeters, ablating electrode sheet (6) interval.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210484617.6A CN103027750B (en) | 2012-11-23 | 2012-11-23 | Electrical ablation balloon radiofrequency catheter in percutaneous renal artery |
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| CN201210484617.6A CN103027750B (en) | 2012-11-23 | 2012-11-23 | Electrical ablation balloon radiofrequency catheter in percutaneous renal artery |
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| CN103027750A CN103027750A (en) | 2013-04-10 |
| CN103027750B true CN103027750B (en) | 2015-02-11 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105392435B (en) * | 2013-07-22 | 2018-11-09 | 波士顿科学国际有限公司 | Renal nerve ablation catheter with twisting sacculus |
| CN104014064B (en) * | 2014-06-23 | 2016-02-24 | 蔡国强 | Electroded air bag and can be used for electrocardio pace-making defibrillation monitoring bronchial catheter |
| WO2015039591A1 (en) * | 2013-09-17 | 2015-03-26 | 蔡国强 | Bronchial catheter for monitoring cardiac pacing defibrillation, and inflatable bag with electrode |
| CN103446649B (en) * | 2013-09-17 | 2017-01-25 | 蔡国强 | Multifunctional double-lumen endobronchial catheter used for electro-cardio pacing |
| EP3473200B1 (en) * | 2017-10-23 | 2020-10-07 | VascoMed GmbH | Ablation catheter with microelectrode and method for producing an ablation catheter |
| CN108371745A (en) * | 2018-03-16 | 2018-08-07 | 上海心至医疗科技有限公司 | A kind of medicine eluting balloon catheter system of band vibration |
| CN112998844B (en) * | 2021-02-05 | 2021-12-21 | 上海睿刀医疗科技有限公司 | Balloon electrode catheter |
| CN114469324B (en) * | 2022-01-26 | 2022-10-11 | 中国医学科学院阜外医院 | Radio frequency ablation catheter and radio frequency ablation system |
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