CN103284785A - Refrigeration electrophysiologic electrode - Google Patents
Refrigeration electrophysiologic electrode Download PDFInfo
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- CN103284785A CN103284785A CN2012100492721A CN201210049272A CN103284785A CN 103284785 A CN103284785 A CN 103284785A CN 2012100492721 A CN2012100492721 A CN 2012100492721A CN 201210049272 A CN201210049272 A CN 201210049272A CN 103284785 A CN103284785 A CN 103284785A
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- conduit
- electrode
- freezing
- electric physiological
- refrigeration
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Abstract
The invention discloses a refrigeration electrophysiologic electrode which comprises a conduit and is characterized in that a pipe body is spirally wound on the conduit and connected with a refrigerating pipe located inside the conduit and used for inputting and outputting a refrigerating fluid. When the refrigeration electrophysiologic electrode is used in ablation, a tail end electrode is pushed to an ablation part, focus tissue is dehydrated and solidified and loses the electroconductive function through low-temperature refrigeration. The refrigeration ablation cannot cause tissue scabbing, so that the safety and the reliability of the conduit are improved. Saline is not required to be conveyed to a patient unceasingly for cooling the ablation part in an operation process, and series of complication caused by saline conveying is avoided.
Description
Technical field
The present invention relates to armarium, particularly a kind of for tissue being carried out the freezing electric physiological electrode that cryoablation is handled.
Background technology
Existing cardiac ablation operation is normally sent into ablation catheter in the heart, and constitute the loop by the comparative electrode at catheter tip electrode and patient back, apply heat and damage or ARR cardiac muscular tissue wherein takes place in modification, its dehydration is solidified lose the conductivity function.This treatment is mainly used in tachy-arrhythmia, as electrophysiology ablations such as paroxysmal supraventricular tachycardia, atrial tachycardia, atrial flutter and paroxysmal ventricular tachycardiies.
Present widely used electrode is the cylindrical electrode that has the electrode of spherical form and have bulb, yet have than minor diameter and present good operability., these electrodes have following defective: output is little, electrode can not be realized sufficiently contacting or being fixed on the organism with organism, degree with blood circulation cooling is very little, and melt be limited to push the zone by end electrodes around scope little.In order to reach darker depth of ablation, can use higher ablation energy clinically, tend to like this cause cardiac muscular tissue's hot-spot and cause incrustation, thereby effectiveness and the safety of operation have been influenced, normally lower the temperature to melting part by spraying saline in the prior art, owing to constantly carry normal saline to patient during operation, a series of complication can take place.
Summary of the invention
The objective of the invention is: at the deficiencies in the prior art, provide a kind of freezing electric physiological electrode that utilizes cryoablation catheter to carry out cardiac ablation.
A kind of freezing electric physiological electrode comprises conduit, it is characterized in that, is spirally wound on supravasal body at conduit, body be positioned at catheter interior, the cryovial that is used for the input and output freezing liquid connects.
Supplementary technology scheme of the present invention is as follows:
Preferably, described body is the electrode tube of metal.
Preferably, freezing liquid by cryovial by the input of the end close to the tail end of conduit on the body, and the end output away from the tail end of conduit from the body.
Preferably, described body has multistage.
Preferably, the tail end at described conduit has temperature sensor.
Preferably, between described each section body, temperature sensor is arranged.
Preferably, between body and conduit, temperature sensor is arranged.
The invention has the beneficial effects as follows: in ablation, end electrodes shifted onto melt part, by freezing the lesion tissue dehydration is solidified, lose the conductivity function.Can not cause tissue incrustation, safety and the reliability of the raising conduit of effectiveness by cryoablation.In operation process, do not need constantly to carry saline to lower the temperature to melting part to patient yet, avoided a series of complication of carrying saline to cause.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the sketch map of the freezing electric physiological electrode of the embodiment of the invention.
Fig. 2 is the cutaway view of freezing electric physiological electrode shown in Figure 1.
Fig. 3 is the sketch map of an embodiment of the freezing electric physiological electrode of the present invention.
Fig. 4 is cutaway view embodiment illustrated in fig. 3.
Fig. 5 is the sketch map of an embodiment of the freezing electric physiological electrode of the present invention.
The specific embodiment
Specific embodiments of the invention 1, as depicted in figs. 1 and 2, a kind of freezing electric physiological electrode, comprise conduit 1, electrode liner 2, cryovial 3, electrode tube 4 (circular or oval-shaped body), temperature sensor 5, temperature sensor lead 6, ring electrode 7, braid 8, traction fiber 9, be enclosed within the plastic tube 10 of body 4 outsides.Wherein, electrode tube 4 (circular or oval) shape in the shape of a spiral is wound on the electrode liner 2, and electrode tube 4 two ends connect cryovial 3 input and output sides respectively.Wherein, input is positioned on the electrode tube 4, and from the nearer end of conduit 1 tail end, outfan is positioned at from the end of conduit 1 tail end away from.Freezing liquid is by an end of the input input electrode pipe 4 of cryovial 3, exported to the outfan of cryovial 3 by the other end of electrode tube 4, be transported to refrigerating plant again, the freezing liquid after the refrigeration is entered electrode tube 4 by the input of cryovial 3 again, form the freezing liquid circulation.Be installed in electrode tube 4 tops by temperature sensor lead 6, the temperature sensor 5 that connects, also can be installed in ring electrode 7 or electrode tube 4 before or after, perhaps be installed in the inboard of body 4, namely between body 4 and the conduit 1.
Embodiments of the invention 2, as shown in Figure 3 and Figure 4, a kind of freezing electric physiological electrode, electrode tube 4(body on conduit 1) be multistage, realize linear ablation, the near-end of electrode tube 4 (left end as shown in the figure) is connected with cryovial 3 inputs (or outfan), and electrode tube 4 forms an infusion liquid return passage with cryovial 3 respectively, constitute the circulation of single electrode freezing liquid, make each electrode tube 4 all can give full play to freezing effect, and can guarantee the temperature unanimity of each electrode tube 4.
Embodiments of the invention 3, as shown in Figure 5, a kind of freezing electric physiological electrode, electrode tube 4 is multistage, with embodiment 2 similar, the near-end of electrode tube 4 (left end as shown in the figure) is connected with cryovial 3 inputs (or outfan), difference is: every segment electrode pipe 4 front and back link to each other, form a passage, the far-end of electrode tube 4 (the right delivery outlet of the electrode of low order end as shown in the figure) is connected with cryovial 3, cryovial 3 is connected to refrigerating plant, and the near-end of the input electrode pipe 4 by cryovial 3 again with the freezing liquid after the refrigeration forms the freezing liquid circulation.
Disclosed all features in this description, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this description (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature 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 (9)
1. a freezing electric physiological electrode comprises conduit, it is characterized in that, is spirally wound on supravasal body at conduit, body be positioned at catheter interior, the cryovial that is used for the input and output freezing liquid connects.
2. freezing electric physiological electrode according to claim 1, it is characterized in that: described body is the electrode tube of metal.
3. freezing electric physiological electrode according to claim 1 and 2 is characterized in that: freezing liquid by cryovial by the end input close to the tail end of conduit on the body, and the end output away from the tail end of conduit from the body.
4. freezing electric physiological electrode according to claim 3, it is characterized in that: described body has multistage.
5. freezing electric physiological electrode according to claim 3, it is characterized in that: the tail end at described conduit has temperature sensor.
6. freezing electric physiological electrode according to claim 4 is characterized in that: between described each section body temperature sensor is arranged.
7. freezing electric physiological electrode according to claim 3 is characterized in that: between body and conduit temperature sensor is arranged.
8. freezing electric physiological electrode according to claim 3 is characterized in that: be with plastic tube outside body.
9. freezing electric physiological electrode according to claim 3, it is characterized in that: described temperature sensor is positioned at the body inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100492721A CN103284785A (en) | 2012-02-29 | 2012-02-29 | Refrigeration electrophysiologic electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100492721A CN103284785A (en) | 2012-02-29 | 2012-02-29 | Refrigeration electrophysiologic electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103284785A true CN103284785A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100492721A Pending CN103284785A (en) | 2012-02-29 | 2012-02-29 | Refrigeration electrophysiologic electrode |
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| CN (1) | CN103284785A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107961071A (en) * | 2018-01-04 | 2018-04-27 | 科塞尔医疗科技（苏州）有限公司 | A kind of radio frequency ablation catheter |
| CN109199570A (en) * | 2017-06-29 | 2019-01-15 | 四川锦江电子科技有限公司 | A kind of interpolar cryoablation conduit |
Citations (3)
| 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 |
-
2012
- 2012-02-29 CN CN2012100492721A patent/CN103284785A/en active Pending
Patent Citations (3)
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199570A (en) * | 2017-06-29 | 2019-01-15 | 四川锦江电子科技有限公司 | A kind of interpolar cryoablation conduit |
| CN107961071A (en) * | 2018-01-04 | 2018-04-27 | 科塞尔医疗科技（苏州）有限公司 | A kind of radio frequency ablation catheter |
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Application publication date: 20130911 |