CN204169925U - A kind of electrophysiologicalcatheter catheter - Google Patents
A kind of electrophysiologicalcatheter catheter Download PDFInfo
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- CN204169925U CN204169925U CN201420635440.XU CN201420635440U CN204169925U CN 204169925 U CN204169925 U CN 204169925U CN 201420635440 U CN201420635440 U CN 201420635440U CN 204169925 U CN204169925 U CN 204169925U
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- catheter
- electrophysiologicalcatheter
- curved
- silk
- conduit
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Abstract
The utility model discloses a kind of electrophysiologicalcatheter catheter, comprising the conduit be connected successively can curved segment, catheter main body section and modular catheter, wherein, described conduit can the far-end of curved segment be annular ring, annular ring is distributed with multiple annular electrode, described modular catheter is provided with and adjusts circle push button, there is in described conduit the first chamber, described first intracavity runs through to be provided with adjusts circle silk, and described tunes encloses silk encloses push button be connected with the far-end of annular ring with described tune respectively.The electrophysiologicalcatheter catheter that this utility model provides, the far-end of curved segment can be set to annular ring, controlled bending and the annular ring footpath of distal end of catheter by modular catheter push button and the built-in tune circle silk of conduit, thus multiple electrodes of distal end of catheter can effectively be reclined renal artery oral area or inwall; Reach treatment intractable hypertension and the relevant cardiovascular disease of other sympathetic nerve excessive activations, as atrial fibrillation, the object of catecholamine sensitivity room speed etc., and safe and reliable.
Description
Technical field
This utility model belongs to medical instruments field, particularly relates to a kind of electrophysiologicalcatheter catheter.
Background technology
Intractable hypertension is common clinically, paathogenic factor is more, pathogenesis is indefinite, the weak effect of Drug therapy, Diagnosis and Treat means are not mature enough, one of main bugbear becoming hypertension therapeutic, and the patient of this disease is often with the risk factor of other cardiovascular disease, as coronary heart disease, diabetes, heart failure, nephropathy, peripheral arterial disease, apoplexy, left ventricular hypertrophy etc.In hypertensive all kinds of complication, the most remarkable with the infringement of the heart, brain, kidney, such as World Health Organization's statistics, the cardiovascular disease of 50% is caused by hypertension.At present because pressure value raises, there is cardiocerebrovasculaevents events and cause the annual whole world of death toll about to have 7,100,000.And in the death factors of China more than 40 years old crowd, heart disease and cerebrovascular are classified as first and the 3rd respectively, total the first dead risk factor is hypertension.
Medical circle is thought always, and the sympathetic activation of kidney and blood pressure raise substantial connection.The sympathetic nerve transition excitation time of kidney, renal blood vessels is shunk, and reduces the excretion of kidney, make moisture and salt retention in vivo, promote renal secretion feritin simultaneously, result in the increase of blood circulation angiotensin I and aldosterone, and latter two material, the factor of blood pressure rising just; In addition, clinical research also confirms simultaneously, the excitement of sympathetic renal nerve and heart class disease, as close in disease relationships such as atrial fibrillation, catecholamine sensitivity ventricular tachycardias, there is clinical data to show, by going renal sympathetic nerve ablation to coordinate pulmonary veins isolation etc. effectively can improve atrial fibrillation cure rate, being melted by renal artery denervation simultaneously, for tachycardic patient, can effectively reduce its heart rate.
The theoretical basis of this denervation treatment is: the sympathetic nerve of kidney imports into and to be distributed in shallow surface portion below renal artery wall (renal artery oral area be renal sympathetic nerve trunk) with efferent fiber, it is active with hypertensive generation with remain closely related, carries out radio-frequency (RF) ablation can damage sympathetic renal nerve and the nervous tissue of not involving other abdominal paries, pelvic part or lower limb in renal artery local.Thus to treat hypertensive method security good for this denervation.And in curative effect, observe known through the researchs of 12 months, when treating latter 1 month, the blood pressure of patient obviously reduces, when 3 months its blood pressure reduce further, 1 year time blood pressure lowering effect still clearly, simultaneously also do not find obvious neuranagenesis.
At present, this technical field has similar devices, helical form ring renal artery sympathetic nerve frequency ablation electrode catheter disclosed in China Patent No. 200920172984.6, what it was basic melts principle is substantially all melting the renal artery within the scope of oral area certain length on the longitudinal spiral direction of renal artery inwall, and there is a kind of new sound in academic circles at present, namely sympathetic nerve is comparatively concentrated in the distribution of renal artery oral area, if there is a kind of operating theater instruments effectively to melt renal artery oral area, then it is in treatment intractable hypertension and heart class disease, as arrhythmia and atrial fibrillation etc. have good curative effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of electrophysiologicalcatheter catheter, can control bending and the annular ring footpath of distal end of catheter easily, thus can effectively recline renal artery oral area or inwall of multiple electrodes of distal end of catheter is melted.
This utility model is solve the problems of the technologies described above the technical scheme adopted to be to provide a kind of electrophysiologicalcatheter catheter, comprising the conduit be connected successively can curved segment, catheter main body section and modular catheter, wherein, described conduit can the far-end of curved segment be annular ring, annular ring is distributed with multiple annular electrode, described modular catheter is provided with and adjusts circle push button, there is in described conduit the first chamber, described first intracavity runs through to be provided with adjusts circle silk, and described tunes encloses silk encloses push button be connected with the far-end of annular ring with described tune respectively.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the described material adjusting circle silk is rustless steel or Nitinol.
Above-mentioned electrophysiologicalcatheter catheter, wherein, described first intracavity is also provided with titanium-nickel wire, is welded together to form stannum ball, forms glueballs after the coated glue layer of described stannum ectosphere at annular ring far-end after described titanium-nickel wire runs through described first chamber with tune circle silk.
Above-mentioned electrophysiologicalcatheter catheter, wherein, described modular catheter is also provided with the curved knob of control, there is in described conduit the second chamber, described second intracavity runs through to be provided with controls curved silk, and the near-end of the curved silk of described control is connected with the curved knob of described control, and the far-end of the curved silk of described control is connected to the near-end of annular ring.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the curved knob of described control is arranged on the far-end of modular catheter.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the far-end of the curved silk of described control is in T shape, is fixed on conduit by glue.
Above-mentioned electrophysiologicalcatheter catheter, wherein, described conduit can curved segment division ring shape circle outside the second intracavity be provided with surely curved silk.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the two ends of described fixed curved silk connect the tubing matched with conduit cavity size respectively, and are adhesively fixed by glue and pipe inner wall.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the length of described fixed curved silk is 0 ~ 80mm.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the material of described fixed curved silk is rustless steel or Nitinol.
Above-mentioned electrophysiologicalcatheter catheter, wherein, described catheter main body segment length is 500 ~ 1500mm, and the conduit bendable segment length comprising annular ring is 20 ~ 100mm, and the circle footpath range of accommodation of annular ring is 3 ~ 10mm.
Above-mentioned electrophysiologicalcatheter catheter, wherein, described conduit at least also comprises the 3rd chamber and the 4th chamber, and described 3rd intracavity is provided with Brine Pipe, for pouring into saline; Described 4th chamber is guidewire lumen, is provided with RF radio frequency line or/and thermocouple wire.
Above-mentioned electrophysiologicalcatheter catheter, wherein, annular ring is distributed with 2 ~ 10 annular electrodes.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the material of described annular electrode is platinumiridio or gold, and the diameter of described annular electrode is 3F ~ 7F, and length is 1.5 ~ 5mm.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the number of described annular electrode is 4, and each annular electrode separately melts or relatively between every two annular electrodes carries out electric discharge and melt with discharging between back pole plate.
Above-mentioned electrophysiologicalcatheter catheter, wherein, connects stimulation instrument and leads instrument more between two described annular electrodes that relative discharge melts.
Above-mentioned electrophysiologicalcatheter catheter, wherein, the electricity irritation frequency that described stimulation instrument is launched is 0-30 hertz.
Above-mentioned electrophysiologicalcatheter catheter, wherein, described annular electrode is evenly placed with 4 ~ 16 salt water holes, described saline pore diameter size is 0.08 ~ 0.16mm.
This utility model contrast prior art has following beneficial effect: the electrophysiologicalcatheter catheter that this utility model provides, the far-end of curved segment can be set to annular ring, controlled bending and the annular ring footpath of distal end of catheter by modular catheter push button and the built-in tune circle silk of conduit, thus multiple electrodes of distal end of catheter can effectively be reclined renal artery oral area or inwall; Multiple electrodes of distal end of catheter arrangement can stimulate mapping renal sympathetic nerve, and carry out denervation and melt, the particularly nerve stimulation of renal artery oral area, mapping and denervation melt, and then reach treatment intractable hypertension and the relevant cardiovascular disease of other sympathetic nerve excessive activations, as atrial fibrillation, the object of catecholamine sensitivity room speed etc., and safe and reliable.
Accompanying drawing explanation
Fig. 1 is the electrophysiologicalcatheter catheter structural representation of this utility model embodiment;
Fig. 2 is that the electrophysiologicalcatheter catheter of this utility model embodiment can curved segment amplify and case of bending change schematic diagram;
Fig. 3 a be the fixed curved silk of electrophysiologicalcatheter catheter band of this utility model embodiment can curved segment partial cutaway schematic; Fig. 3 b is fixed curved silk section place enlarged diagram in Fig. 3 a;
Fig. 4 be this utility model embodiment electrophysiologicalcatheter catheter not with surely curved silk can curved segment control curved after schematic shapes;
Fig. 5 a is the structural representation before the circle footpath adjustment of the annular ring of electrophysiologicalcatheter catheter in this utility model embodiment; Fig. 5 b is the structural representation after the circle footpath of annular ring reduces;
Fig. 6 is the structural representation that the control curved line cephalic par T-shaped structure of this utility model embodiment is fixed in conduit;
Fig. 7 is the cross-sectional view along A-A line in Fig. 6;
Fig. 8 is the schematic diagram that the annular ring of the electrophysiologicalcatheter catheter of this utility model embodiment carries out at renal artery oral area melting.
In figure:
1 catheter main body section 2 conduit can curved segment 3 annular ring
The curved silk 5 of 4 control adjusts circle push button 6 to control curved knob
7 modular catheter 8 female Luer 9 adjust circle silk
10 fixed curved silk 11 annular electrode 12 salt water holes
13 first chamber 15, chamber 14 second Brine Pipes
16 the 3rd chamber 18, chamber 17 the 4th multi-lumen tube
19 renal artery ostium 20 titanium-nickel wires
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is the electrophysiologicalcatheter catheter structural representation of this utility model embodiment.
Refer to Fig. 1, the electrophysiologicalcatheter catheter that the present embodiment provides comprises the conduit be connected successively can curved segment 2, catheter main body section 1 and modular catheter 7, conduit can the far-end of curved segment 2 be annular ring 3, annular ring 3 is distributed with multiple annular electrode 11, modular catheter 7 is provided with and adjusts circle push button 5 and the curved knob 6 of control, adjust circle push button 5 for regulating the circle footpath of annular ring 3, controlling curved knob 6 can curved segment curved for controlling conduit except annular ring 3.Modular catheter 7 is also connected with female Luer 8, and modular catheter 7 end do not shown is welded with conduit buttock line socket.Wherein catheter main body section 1 material is generally polyurethane material, also can be Pebax, and caliber, without particular/special requirement, according to used renal artery blood vessel generally between 4F ~ 8F, is advisable with 6F.The material of annular ring 3 is generally Pebax, and can be also other suitable macromolecular materials, caliber, between 3F ~ 7F, be advisable with 5F; As shown in Figure 2, by the curved silk 4 of the control in connecting duct handle 7 and conduit, distal end of catheter is realized curved controlled at 0 ~ 180 °.
Due to inconsistent larger because individual variation exists of ventral aorta and renal artery meeting out of shape, far-end is curved can by conduit can interpolation be various in the multi-lumen tube 18 of curved segment 2 determines bending tool, after realization control is curved, conduit can curved segment 2 curved to become as shown in Figure 3 and Figure 4 from craspedodrome shape multiple curved, curved wherein shown in Fig. 3 (a), conduit can be lined with the higher fixed curved silk 10 (shown in figure fixed curved filament length degree range L) of a hardness in curved segment 2 certain limit, as Fig. 3 (b) is depicted as the partial enlarged drawing of surely curved silk 10 in multi-lumen tube 18, fixed curved silk 10 can be possess the stainless steel silk of certain degree of hardness or Niti silk etc. (control curved after this segment base this in craspedodrome shape), the length of fixed curved silk 10 is preferably between 0 ~ 80mm, and the tubing that the two ends of fixed curved silk 10 are matched with multi-lumen tube 18 inner cavity size by docking one, and be adhesively fixed by glue and multi-lumen tube 18 inside, thus make conduit modular catheter 7 control curved after, conduit can curved segment 2 present certain curved, RDC or LIMA as renal artery sheath is curved, and then annular ring 3 can effectively be reclined renal artery oral area, Fig. 4 is the conduit without fixed curved silk in multi-lumen tube 18, and after control is curved, because conduit can the difference of curved segment 2 tubing hardness, the curved size presented also can change within the specific limits.
Fig. 5 is the structural representation of annular ring, as required, annular ring 3 is distributed with 2 ~ 10 annular electrodes 11, is preferably 4 annular electrodes 11, and annular electrode 11 is the good metal of biocompatibility, as platinumiridio, gold etc., the diameter of annular electrode 11, between 3F ~ 7F, is advisable with 5F, the length of electrode is again between 1.5 ~ 5mm, be advisable with 3mm, and the whole circle of annular electrode 11 is evenly placed with 4 ~ 16 salt water holes, saline pore diameter size is 0.08 ~ 0.16mm; Each annular electrode 11 separately and can discharge between back pole plate and melt, or between every two annular electrodes 11, relative discharge melts; Whether preferably, relative discharge melts between two annular electrodes 11 can connect stimulation instrument, stimulates before and after melt to ablation points, and accepts stimulus signal by leading instrument etc. more, effective to judge to melt; Annular electrode is embedded with thermocouple 11 times, and the material of thermocouple, for being generally enamel wire, as the combination of copper and constantan, thus realizing the real-time monitoring of temperature in ablation procedure, in addition annular electrode 11 being welded with RF line, for conducting radio-frequency (RF) energy.This radio-frequency (RF) energy is generally between 6 ~ 15W, preferred power is 10W, cool brine is sent to conduit by the charge pump that while melting electric discharge, female Luer 8 connects, finally spray from the salt water hole 12 annular electrode 11, reach the object of perfusion ablating electrode, thus better guarantee to melt renal artery tissue, the flow of perfusion of saline generally at 10 ~ 20ml/min, preferably 17ml/min.Whether this RF line can also conduct the stimulus signal launched from stimulation instrument simultaneously in addition, reaches the object of stimulation of renal nerve, thus detect electric discharge and melt metanephros nerve and effectively damage.
The annular ring 3 of conduit can be pushed away by the tune circle on modular catheter 7 turns round 5, and the diameter of conduit annular ring 3 is switched without gradient between 3 ~ 10mm, thus meets the demand of the different renal artery patient of the diameter that effectively reclines.
The material of the annular ring 3 of conduit is generally Pebax or other macromolecules, and this kind of material has certain style-ability after the heat treatment, therefore the sizing of annular ring 3 can rely on NITI fixed wire or this macromolecule material itself to shape; The conduit that the present embodiment provides generally 4 chambeies and more than, wherein the 3rd chamber 16 is for logical perfusion saline; 4th chamber 17, for leading to the wire connecing and melt needed for annular electrode 11, comprises RF and thermocouple wire; The near-end in the second chamber 14 is used for the curved required curved silk 4 of control of logical control, and as indicated with 6, the curved silk 4 of this control is fixed on the near-end of annular ring 3, and its head end end is in T shape, is fixed in multi-lumen tube 18 by glue, and the far-end in the second chamber 14 is for loading surely curved silk 10; First chamber 13 is for placing the Niti silk 20 of sizing and adjusting the tune circle silk 9 needed for enclosing, and the material adjusting circle silk 9 can be stainless steel silk or Niti silk; Adjust circle silk 9 and the through whole multi-lumen tube 18 of Niti silk 20, pass, and the two welded together by solder stick from tubing far-end end, welding head end forms stannum ball, and skin is covered by glue, finally forms glueballs at distal end of catheter end.
By Renal denervation ablation intractable hypertension, modus operandi more at present carries out spiral whole piece to renal artery inwall to melt, because the renal sympathetic nerve distribution of renal artery oral area is comparatively intensive, if there is a kind of apparatus can effectively to recline renal artery oral area, stimulate, mapping and electric discharge are melted, then it effectively can block the renal sympathetic nerve at this position, thus for treating the disease of intractable hypertension and heart class, as the arrhythmia such as atrial fibrillation have preferably effect, electrophysiologicalcatheter catheter provided by the utility model, as shown in Figure 8, can be realized by modular catheter 7 that distal annular rim circle footpath is adjustable and end is curved controlled, the annular electrode 11 realized on distal end of catheter annular ring 3 effectively reclines renal artery oral area 19, thus meet the stimulation of doctor for renal artery oral area renal sympathetic nerve, mapping and the object melted.And coordinate owing to annular electrode 3 being evenly distributed with multiple fill orifice the thermocouple buried, temperature in melting is controlled within the specific limits, preferably between 30 DEG C ~ 60 DEG C, make to carry out the process that the whole circle of renal artery melts to be unlikely to make renal artery occur the phenomenons such as spasm, thus finally guarantee the safety and effectively of conduit.
Although this utility model discloses as above with preferred embodiment; so itself and be not used to limit this utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection domain of the present utility model is when being as the criterion of defining with claims.
Claims (18)
1. an electrophysiologicalcatheter catheter, comprising the conduit be connected successively can curved segment, catheter main body section and modular catheter, it is characterized in that, described conduit can the far-end of curved segment be annular ring, annular ring is distributed with multiple annular electrode, described modular catheter is provided with and adjusts circle push button, there is in described conduit the first chamber, described first intracavity runs through to be provided with adjusts circle silk, and described tunes encloses silk encloses push button be connected with the far-end of annular ring with described tune respectively.
2. electrophysiologicalcatheter catheter as claimed in claim 1, is characterized in that, the described material adjusting circle silk is rustless steel or Nitinol.
3. electrophysiologicalcatheter catheter as claimed in claim 1, it is characterized in that, described first intracavity is also provided with titanium-nickel wire, is welded together to form stannum ball, forms glueballs after the coated glue layer of described stannum ectosphere at annular ring far-end after described titanium-nickel wire runs through described first chamber with tune circle silk.
4. electrophysiologicalcatheter catheter as claimed in claim 1, it is characterized in that, described modular catheter is also provided with the curved knob of control, there is in described conduit the second chamber, described second intracavity runs through to be provided with controls curved silk, the near-end of the curved silk of described control is connected with the curved knob of described control, and the far-end of the curved silk of described control is connected to the near-end of annular ring.
5. electrophysiologicalcatheter catheter as claimed in claim 4, it is characterized in that, the curved knob of described control is arranged on the far-end of modular catheter.
6. electrophysiologicalcatheter catheter as claimed in claim 4, it is characterized in that, the far-end of the curved silk of described control is in T shape, is fixed on conduit by glue.
7. electrophysiologicalcatheter catheter as claimed in claim 4, is characterized in that, described conduit can be provided with surely curved silk by the second intracavity outside curved segment division ring shape circle.
8. electrophysiologicalcatheter catheter as claimed in claim 7, is characterized in that, the two ends of described fixed curved silk connect the tubing matched with conduit cavity size respectively, and are adhesively fixed by glue and pipe inner wall.
9. electrophysiologicalcatheter catheter as claimed in claim 7, is characterized in that, the length of described fixed curved silk is 0 ~ 80mm.
10. electrophysiologicalcatheter catheter as claimed in claim 11, is characterized in that, the material of described fixed curved silk is rustless steel or Nitinol.
11. electrophysiologicalcatheter catheters as claimed in claim 1, it is characterized in that, described catheter main body segment length is 500 ~ 1500mm, and the conduit bendable segment length comprising annular ring is 20 ~ 100mm, and the circle footpath range of accommodation of annular ring is 3 ~ 10mm.
12. electrophysiologicalcatheter catheters as claimed in claim 1, it is characterized in that, described conduit at least also comprises the 3rd chamber and the 4th chamber, described 3rd intracavity is provided with Brine Pipe, for pouring into saline; Described 4th chamber is guidewire lumen, is provided with RF radio frequency line or/and thermocouple wire.
13. electrophysiologicalcatheter catheters as claimed in claim 1, is characterized in that, annular ring is distributed with 2 ~ 10 annular electrodes.
14. electrophysiologicalcatheter catheters as claimed in claim 13, it is characterized in that, the material of described annular electrode is platinumiridio or gold, the diameter of described annular electrode is 3F ~ 7F, and length is 1.5 ~ 5mm.
15. electrophysiologicalcatheter catheters as claimed in claim 14, is characterized in that, the number of described annular electrode is 4, and each annular electrode separately melts or relatively between every two annular electrodes carries out electric discharge and melt with discharging between back pole plate.
16. electrophysiologicalcatheter catheters as claimed in claim 15, is characterized in that, connect stimulation instrument and lead instrument more between two described annular electrodes that relative discharge melts.
17. electrophysiologicalcatheter catheters as claimed in claim 16, it is characterized in that, the electricity irritation frequency that described stimulation instrument is launched is 0-30 hertz.
18. electrophysiologicalcatheter catheters as claimed in claim 13, is characterized in that, described annular electrode is evenly placed with 4 ~ 16 salt water holes, described saline pore diameter size is 0.08 ~ 0.16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635440.XU CN204169925U (en) | 2014-10-29 | 2014-10-29 | A kind of electrophysiologicalcatheter catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635440.XU CN204169925U (en) | 2014-10-29 | 2014-10-29 | A kind of electrophysiologicalcatheter catheter |
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| Publication Number | Publication Date |
|---|---|
| CN204169925U true CN204169925U (en) | 2015-02-25 |
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| CN201420635440.XU Withdrawn - After Issue CN204169925U (en) | 2014-10-29 | 2014-10-29 | A kind of electrophysiologicalcatheter catheter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615990A (en) * | 2014-10-29 | 2016-06-01 | 上海微创电生理医疗科技有限公司 | Electrophysiology catheter |
| CN106031656A (en) * | 2015-03-11 | 2016-10-19 | 上海微创电生理医疗科技有限公司 | A radio frequency ablation instrument and a radio frequency ablation system |
| CN106691579A (en) * | 2015-07-28 | 2017-05-24 | 上海微创电生理医疗科技有限公司 | Electrophysiological catheter |
| CN107157573A (en) * | 2016-03-07 | 2017-09-15 | 四川锦江电子科技有限公司 | The mapping ablation catheter and ablating device and device application method of a kind of interpolar discharge |
-
2014
- 2014-10-29 CN CN201420635440.XU patent/CN204169925U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615990A (en) * | 2014-10-29 | 2016-06-01 | 上海微创电生理医疗科技有限公司 | Electrophysiology catheter |
| CN105615990B (en) * | 2014-10-29 | 2019-07-23 | 上海微创电生理医疗科技股份有限公司 | A kind of electrophysiologicalcatheter catheter |
| CN106031656A (en) * | 2015-03-11 | 2016-10-19 | 上海微创电生理医疗科技有限公司 | A radio frequency ablation instrument and a radio frequency ablation system |
| CN106031656B (en) * | 2015-03-11 | 2019-06-25 | 上海微创电生理医疗科技有限公司 | Radiofrequency melting instrument and radio frequency ablation system |
| CN106691579A (en) * | 2015-07-28 | 2017-05-24 | 上海微创电生理医疗科技有限公司 | Electrophysiological catheter |
| CN106691579B (en) * | 2015-07-28 | 2020-02-18 | 上海微创电生理医疗科技有限公司 | Electrophysiology catheter |
| CN107157573A (en) * | 2016-03-07 | 2017-09-15 | 四川锦江电子科技有限公司 | The mapping ablation catheter and ablating device and device application method of a kind of interpolar discharge |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150225 Effective date of abandoning: 20190723 |