CN102429725A - Electrophysiological electrode capable of spraying liquid - Google Patents
Electrophysiological electrode capable of spraying liquid Download PDFInfo
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- CN102429725A CN102429725A CN201110418466XA CN201110418466A CN102429725A CN 102429725 A CN102429725 A CN 102429725A CN 201110418466X A CN201110418466X A CN 201110418466XA CN 201110418466 A CN201110418466 A CN 201110418466A CN 102429725 A CN102429725 A CN 102429725A
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Abstract
The invention discloses an electrophysiological electrode capable of spraying liquid, which comprises at least a segment of spirally wound electrode arranged on a tube body and is characterized in that the spirally wound electrode is a hollow electrode tube, a plurality of through holes are distributed on the surface of the electrode tube, and the internal part of the electrode tube is communicated with an infusion tube which conveys infusion liquid. The electrophysiological electrode capable of spraying liquid disclosed by the invention can efficiently improve infusion effect and can improve safety as well as reliability of an ablation catheter.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, more particularly, the present invention relates to a kind of open irrigated ablation catheters with end electrodes.
Background technology
Electrophysiologicalcatheter catheter; Be widely used at present in the application practice of medical treatment; It is mainly used in along in the lumen of vessels electrode catheter being delivered to diverse location in the heart, and heart is carried out electrophysiologic study, mark survey or RF ablation, thereby reaches the purpose that the heart disease mark is surveyed and treated.The electrode that uses now normally has the electrode and the cylindrical electrode with bulb of spherical form, and this type electrode has than minor diameter and presents good operability.When melting, in order to reach darker depth of ablation, can use higher ablation energy clinically, tend to cause cardiac muscular tissue's hot-spot like this and cause incrustation, thereby influenced the effectiveness and the safety of operation.Therefore, in some radiofrequency ablation procedures, can select to adopt filling type RF ablation conduit, near electrode, preventing that blood from producing condenses with spray coolant.
As disclosing a kind of filling type conduit among the Chinese utility model patent CN201822910U; Comprise catheter main body, melt part and porous ablating electrode, wherein, ablating electrode comprises a main body and a plug-in unit; Main body is formed by the porous material sintering, and plug-in unit comprises at least one fluid passage; Conduit also comprises intrusion pipe, and infusion liquid goes out through the orifice flow of intrusion pipe from ablating electrode, thereby counter electrode and cardiac muscular tissue cool off.More even for what infusion liquid was sprayed; Usually a plurality of holes can be set on main body; In Chinese invention patent application CN200910159385.5 with in the Chinese utility model patent 200920068409.1 similar main body configuration is disclosed all for example; Or, increase the perfusion spray area, in the hope of reaching perfusion effect preferably through on main body, increasing the fill orifice group.
In actual mechanical process; Cardiac muscle or blood vessel are close to through regular meeting in the side of main body; In this case, when cardiac muscular tissue was melted, RF energy was transmitted into cardiac muscular tissue through ablating electrode and its thermal dehydration is solidified; And part is close to the side of myocardium main body because fill orifice receives compressing and can't realize perfusion functional, and the cardiac muscular tissue of this part is very easy to hot-spot occur and causes incrustation.Especially when the ablating electrode longer dimension, the cardiac muscular tissue that the part of holding away from the ablating electrode perfusion closely reclines is very easy to hot-spot occur and causes incrustation.It is undesirable to cause pouring into ablation effect.Increase the quantity of fill orifice in order to improve perfusion effect or on main body, carry out the manufacturing cost that etching all can increase electrode, and bad for what avoid fill orifice pressurized blocking problem to solve.
Summary of the invention
But the purpose of this invention is to provide the reasonable hydrojet electricity of a kind of ablation effect physiological electrode.
Technical scheme of the present invention is:
But a kind of hydrojet electricity physiological electrode; Comprise at least one section electrode that is arranged in helical form coiling on the body; It is characterized in that: the electrode in said helical form coiling is the electrode tube of hollow, and in the electrode tube surface distributed a plurality of through holes is arranged, and electrode tube is inner to be communicated with the intrusion pipe of carrying infusion liquid.
Supplementary technology scheme of the present invention is following:
Preferably, said through hole is uniformly distributed with along the electrode tube length direction.
Preferably, said electrode tube is more than 1 group.
Preferably, between each group electrode tube, be provided with temperature sensor.
Preferably, but said hydrojet electricity physiological electrode also comprises ring electrode.
Preferably, said electrode tube is arranged on the tail end of body, and said infusion liquid is got into by the tail end of electrode tube, and flows to the direction away from the body tail end along electrode tube.
Preferably, said electrode tube is arranged on the tail end of body, and said infusion liquid is got into by the head end of electrode tube, and flows to the direction that approaches the body tail end along electrode tube.
Preferably, have at least the said via arrangement of part with body axis angle be on 90 ° the direction.
Preferably, have at least the said via arrangement of part with body axis angle less than or greater than 90 ° direction on.
A kind of electrophysiologicalcatheter catheter, but on conduit, be furnished with above-mentioned hydrojet electricity physiological electrode.
The invention has the beneficial effects as follows:
1, adopt the electrode tube of helically coiling, when perfusion, infusion liquid can flow along the spiral lines, has avoided infusion liquid to arrive and has been close to the surperficial problem of tissue part;
2, further, the fill orifice direct forming only needs the electrode tube spiral rolled when processing and manufacturing and is installed on the body on electrode tube, need not after installation, to punch, etching or debugging work, has practiced thrift manufacturing cost;
3, in some preferred embodiments, this electrode tube can also be used with ring electrode, comprehensively the advantage of the two;
4, in some preferred embodiments, can adjust the infusion liquid inlet of electrode tube, thereby obtain different infusion liquid perfusion intensity, be applicable to different operation processs at the diverse location of electrode tube;
5, in some preferred embodiments, can spray direction according to perfusion and at random arrange fill orifice, to obtain more evenly or perfusion effect targetedly;
6, in some preferred embodiments, electrode tube of the present invention can also be opened fill orifice at the sidepiece of pipe, even if make when the fill orifice pressurized stops up at the top, still can for the part infusion liquid be provided uniformly.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
But Fig. 1 is the overall schematic of embodiment with conduit of hydrojet electricity physiological electrode.
But Fig. 2 is the sketch map of embodiment with conduit of hydrojet electricity physiological electrode.
Fig. 3 is the body schematic cross-section of conduit among the embodiment.
But Fig. 4 is the cutaway view with embodiment of hydrojet electricity physiological electrode conduit.
But Fig. 5 is the cutaway view with embodiment of hydrojet electricity physiological electrode conduit.
But Fig. 6 is the cutaway view with embodiment of hydrojet electricity physiological electrode conduit.
But Fig. 7 is the cutaway view with embodiment of hydrojet electricity physiological electrode conduit.
Fig. 8 is a cutaway view embodiment illustrated in fig. 6.
The specific embodiment
Specific embodiment of the present invention, a kind of medical ablation catheter, as shown in Figure 1, electrophysiologicalcatheter catheter is made up of electrode tube 4, ring electrode 11, body 1 and control handle assembly.The heat-shrink tube 21 and rubber cap 22 that connect body 1 usefulness are arranged on handle; The grip 23 that is used to take; And the push-and-pull key 24 of control usefulness, on handle, also be provided with regulate with the parts 25 of fixing seal wire and be connected handle and the adnexa of intrusion pipe 3, buttock line 15 etc. like joint lower cover 26, joint loam cake 27; Plastic tube 28, joint 29 etc.
Fig. 3 is the sectional view of conduit middle tube body 1 shown in Figure 1, and body 1 inside comprises hypotube or compresses wire loop 19, traction fiber 9, electrode cable 10, tube wall 12, tube chamber 18, braid 8, liner 14, temperature sensor lead 6, intrusion pipe 3.Body 1 is elongated, flexible, but incompressible at its length direction.Tube wall 12 is to process (as: polyether block amide, polyurethane or nylon etc.) by the macromolecular material with biocompatibility, and the braid 8 of its inwall is formed by tinsel or temperature sensor lead 6 and electrode cable 10 braidings, is used to strengthen the hardness of body 1.Braid 8 is woven in tube chamber 18 skins; Tube chamber 18 has at least one chamber or a plurality of chamber; One of them chamber is used for through electrode cable 10, temperature sensor lead 6 and intrusion pipe 3 and liner 14; Electrode cable 10 and temperature sensor lead 6 irregular or regular being wrapped on the liner 14, intrusion pipe 3 places in the liner 14, and its chamber is used to pass hypotube or compression wire loop 19 in addition; Traction fiber 9 penetrates in hypotube or the compression wire loop 19, and electrode cable 10 is to decide according to the quantity of electrode and temperature sensor with the quantity of temperature sensor lead 6.
As shown in Figure 2, electrode tube 4 (circular or oval) shape in the shape of a spiral is wound on the electrode liner 2 electrode tube 4 surperficial uniform distribution fill orifices 7 (aperture is 0.02mm-0.5mm), a hole or a plurality of hole.Electrode tube 4 one termination intrusion pipes 3 other ends are by electrode cable 10 firm welding.Temperature sensor 5 is installed in electrode tube 4 tops, also can be installed in before or after the ring electrode 11.
One embodiment of the invention, as shown in Figure 4, body and handle portion and embodiment are similar; But infusion liquid is by near-end (like the diagram left end) input of electrode tube 4; With the far-end (like the diagram right-hand member) of electrode cable 10 insertion electrode tubes 4, and firm welding, reach connection and sealing function.
One embodiment of the invention, as shown in Figure 5, body and handle portion and embodiment are similar; But infusion liquid is by far-end (like the diagram right-hand member) input of electrode tube 4; The far-end of electrode tube 4 passes electrode liner 2 inner chambers, and stretches out electrode liner 2, and it is connected with intrusion pipe 3.The other end of electrode tube 4 then inserts the near-end (like the diagram left end) of electrode tubes 4 with electrode cable 10, and firm welding, reaches to connect and sealing function.
One embodiment of the invention; As shown in Figure 6, body and handle portion and embodiment are similar, but infusion liquid is by far-end (like the diagram right-hand member) input of electrode tube 4; The far-end of electrode tube 4 penetrates the inner chamber of electrode liner 2, and the other end of electrode liner 2 (like the diagram left end) is connected with intrusion pipe 3.The other end of electrode tube 4 then inserts the near-end (like the diagram left end) of electrode tubes 4 with electrode cable 10, and firm welding, reaches to connect and sealing function.
One embodiment of the invention, like Fig. 7 and shown in Figure 8, body and handle portion and embodiment are similar, but on the body by two or more electrode tubes 4, and be equipped with the temperature sensor 5 of respective numbers, realize the linear ablation function.Intrusion pipe is inner through body, and via internal pipeline infusion liquid is transported in every segment electrode pipe 4 successively.
Disclosed all characteristics in this description, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this description (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (10)
1. but hydrojet electricity physiological electrode; Comprise at least one section electrode that is arranged in helical form coiling on the body; It is characterized in that: the electrode in said helical form coiling is the electrode tube of hollow, and in the electrode tube surface distributed a plurality of through holes is arranged, and electrode tube is inner to be communicated with the intrusion pipe of carrying infusion liquid.
But 2. hydrojet electricity physiological electrode according to claim 1, it is characterized in that: said through hole is uniformly distributed with along the electrode tube length direction, and the aperture of through hole is 0.02mm-0.5mm.
3. but hydrojet electricity physiological electrode according to claim 1, it is characterized in that: said electrode tube is more than 1 group.
4. but hydrojet electricity physiological electrode according to claim 3 is characterized in that: between each group electrode tube, be provided with temperature sensor.
5. but hydrojet electricity physiological electrode according to claim 1 is characterized in that: but said hydrojet electricity physiological electrode also comprises ring electrode.
6. but according to claim 1 or 3 or 5 described hydrojet electricity physiological electrodes, it is characterized in that: said electrode tube is arranged on the tail end of body, and said infusion liquid is got into by the tail end of electrode tube, and flows to the direction away from the body tail end along electrode tube.
7. but according to claim 1 or 3 or 5 described hydrojet electricity physiological electrodes, it is characterized in that: said electrode tube is arranged on the tail end of body, and said infusion liquid is got into by the head end of electrode tube, and flows to the direction that approaches the body tail end along electrode tube.
8. but according to claim 1 or 3 or 5 described hydrojets electricity physiological electrodes, it is characterized in that: have at least the said via arrangement of part with body axis angle be on 90 ° the direction.
9. but according to claim 1 or 3 or 5 described hydrojets electricity physiological electrodes, it is characterized in that: have at least the said via arrangement of part with body axis angle less than or greater than 90 ° direction on.
10. electrophysiologicalcatheter catheter, but on conduit, be furnished with the described hydrojet electricity of claim 1 physiological electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110418466XA CN102429725A (en) | 2011-12-14 | 2011-12-14 | Electrophysiological electrode capable of spraying liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110418466XA CN102429725A (en) | 2011-12-14 | 2011-12-14 | Electrophysiological electrode capable of spraying liquid |
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| CN102429725A true CN102429725A (en) | 2012-05-02 |
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| CN201110418466XA Pending CN102429725A (en) | 2011-12-14 | 2011-12-14 | Electrophysiological electrode capable of spraying liquid |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688093A (en) * | 2012-06-20 | 2012-09-26 | 深圳市惠泰医疗器械有限公司 | Renal artery cold saline water radio frequency ablation controllable electrode catheter |
| CN103893902A (en) * | 2012-12-27 | 2014-07-02 | 四川锦江电子科技有限公司 | Liquid exchange catheter |
| CN103892906A (en) * | 2012-12-27 | 2014-07-02 | 四川锦江电子科技有限公司 | Winding type perfusion cannula |
| CN104546124A (en) * | 2013-10-15 | 2015-04-29 | 佳乐医疗设备有限公司 | Electrosurgical electrode and instrument |
| CN106308928A (en) * | 2015-06-30 | 2017-01-11 | 四川锦江电子科技有限公司 | Ablation device having mapping function |
| CN106308921A (en) * | 2015-06-30 | 2017-01-11 | 四川锦江电子科技有限公司 | Ablation device having pressure detection function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5913854A (en) * | 1997-02-04 | 1999-06-22 | Medtronic, Inc. | Fluid cooled ablation catheter and method for making |
| CN1658803A (en) * | 2002-03-20 | 2005-08-24 | 福加齐·迪·文图雷利·安德烈亚&C.Snc公司 | Catheter with flexible cooled electrode |
| CN201822910U (en) * | 2010-06-04 | 2011-05-11 | 心诺普医疗技术（北京）有限公司 | Perfusion type radiofrequency ablation catheter |
| CN202446256U (en) * | 2011-12-14 | 2012-09-26 | 四川锦江电子科技有限公司 | Electrophysiological electrode capable of spraying liquid and electrophysiological catheter |
-
2011
- 2011-12-14 CN CN201110418466XA patent/CN102429725A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5913854A (en) * | 1997-02-04 | 1999-06-22 | Medtronic, Inc. | Fluid cooled ablation catheter and method for making |
| CN1658803A (en) * | 2002-03-20 | 2005-08-24 | 福加齐·迪·文图雷利·安德烈亚&C.Snc公司 | Catheter with flexible cooled electrode |
| CN201822910U (en) * | 2010-06-04 | 2011-05-11 | 心诺普医疗技术（北京）有限公司 | Perfusion type radiofrequency ablation catheter |
| CN202446256U (en) * | 2011-12-14 | 2012-09-26 | 四川锦江电子科技有限公司 | Electrophysiological electrode capable of spraying liquid and electrophysiological catheter |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688093A (en) * | 2012-06-20 | 2012-09-26 | 深圳市惠泰医疗器械有限公司 | Renal artery cold saline water radio frequency ablation controllable electrode catheter |
| CN102688093B (en) * | 2012-06-20 | 2014-08-27 | 深圳市惠泰医疗器械有限公司 | Renal artery cold saline water radio frequency ablation controllable electrode catheter |
| CN103893902A (en) * | 2012-12-27 | 2014-07-02 | 四川锦江电子科技有限公司 | Liquid exchange catheter |
| CN103892906A (en) * | 2012-12-27 | 2014-07-02 | 四川锦江电子科技有限公司 | Winding type perfusion cannula |
| CN103893902B (en) * | 2012-12-27 | 2016-12-28 | 四川锦江电子科技有限公司 | Fluid exchange conduit |
| CN104546124A (en) * | 2013-10-15 | 2015-04-29 | 佳乐医疗设备有限公司 | Electrosurgical electrode and instrument |
| CN106308928A (en) * | 2015-06-30 | 2017-01-11 | 四川锦江电子科技有限公司 | Ablation device having mapping function |
| CN106308921A (en) * | 2015-06-30 | 2017-01-11 | 四川锦江电子科技有限公司 | Ablation device having pressure detection function |
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Application publication date: 20120502 |