CN103505798B - The fluted ablation catheter in surface - Google Patents
The fluted ablation catheter in surface Download PDFInfo
- Publication number
- CN103505798B CN103505798B CN201310463990.8A CN201310463990A CN103505798B CN 103505798 B CN103505798 B CN 103505798B CN 201310463990 A CN201310463990 A CN 201310463990A CN 103505798 B CN103505798 B CN 103505798B
- Authority
- CN
- China
- Prior art keywords
- ablation catheter
- supporting tube
- sealant
- wire
- catheter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a kind of surperficial fluted ablation catheter, comprise the supporting tube being configured in centre, and be configured in many wires on the outer surface of supporting tube; Many wires configure around the circumferencial direction of supporting tube, and every bar wire extends along the length direction of supporting tube; Have the sealant for coated wire in the exterior arrangement of every bar wire, adjacent sealant forms groove on the outer surface of supporting tube.Compared with the internal structures such as wire being coated in prior art the design of circular pipe inside, the outer surface of surperficial fluted ablation catheter and the contact area of guiding catheter inwall less, frictional resistance declines to a great extent, and facilitates operation technique; Meanwhile, the space between surperficial fluted ablation catheter and guiding catheter is larger, can fully meet the requirements such as radiography in ablative surgery, lavation, anticoagulant.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, more specifically relate to a kind of surperficial fluted ablation catheter.
Background technology
Heart is a very complicated human organ.The stimulation of electrocardio stream makes myocardial contraction, pumps blood and makes it to circulate at Ink vessel transfusing.First electrocardio stream through atrium, be then ventricle, cause corresponding muscle contraction.Cardiac muscle, under the effect of electrocardio stream, carries out rhythmic coordination and shrinks.With advancing age or the pathology of heart and the change of physiological feature, the contraction imbalance of heart, allorhythmia can be caused.
Treating one of ARR method is ablation, namely cuts off abnormal heart current loop by intervene operation.In order to carry out ablation, need the conduit with ablating electrode to send to left atrium.Generally be through femoral artery puncture, under X-ray image is observed, electrophysiologicalcatheter catheter with ablating electrode is delivered to left atrium, and make electrode paste lean against on orifices of pulmonary veins, the position producing ARR improper heart current loop is determined by gathering the signal of telecommunication, the discharge energy caused by ablating electrode or other energy cause tissue injury's degeneration near this position and coagulation necrosis, block improper heart current loop.Energy for melting can be radio-frequency current, DC current, microwave, ultrasound wave or laser.
Ablation catheter generally all needs to set up under the assistance of guiding catheter from external to heart or arteriorenal passage, and the major part of ablation catheter is retained in guiding catheter, and that is in ablation, guiding catheter surrounds on the outer wall of ablation catheter.Therefore, the internal diameter of guiding catheter needs the external diameter being greater than ablation catheter, so that the passing through smoothly of ablation catheter.Meanwhile, in operation, need by means of DSA (digital subtraction angiography) equipment, by injection of contrast medium in guiding catheter, just clearly can observe the key message such as shape, position, size of the target sites such as blood vessel.Also need saline injection in guiding catheter to carry out lavation in operation, inject heparin and carry out anticoagulant.Therefore, under guarantee ablation catheter basic function and the impregnable prerequisite of intensity, also need to ensure the space between ablation catheter and guiding catheter, in order to fully to meet the requirements such as radiography, lavation, anticoagulant.
In the prior art, the outer surface of ablation catheter is circular design.The internal structures such as wire are all coated on circular pipe inside, and the space between ablation catheter and guiding catheter can only be realized by the internal diameter increasing guiding catheter, and the increase of guiding catheter internal diameter must increase the difficulty of ablative surgery.Meanwhile, in order to ensure ablation catheter smoothly by guiding catheter, also need to provide a kind of and ablation catheter that resistance between guiding catheter is less.
Summary of the invention
For the deficiency of ablation catheter in prior art, technical problem to be solved by this invention is to provide a kind of surperficial fluted ablation catheter.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of surperficial fluted ablation catheter, comprises the supporting tube being configured in described ablation catheter centre, and is configured in many wires on the outer surface of described supporting tube; Many described wires configure around the circumferencial direction of described supporting tube, and wire described in every bar extends along the length direction of described supporting tube; Described in every bar, the outside of wire is all configured with the sealant for coated described wire, and adjacent sealant forms groove on the outer surface of described supporting tube.
Wherein more preferably, described sealant has the cross section of circular arc, and the bottom of described sealant is connected with the intimate of described supporting tube, forms an arc-shaped space; Described conductor configurations is in described arc-shaped space.
Or wherein more preferably, the cross section of described sealant has the top of circular arc, and be connected with the base at described circular arc top and the linear sidewall extended to the outer surface of described supporting tube; Described conductor configurations is in the enclosed space be made up of the outer surface of circular arc top, linear type sidewall and described supporting tube.
Wherein more preferably, adjacent described sealant is connected to each other, and covers the outer surface of whole described supporting tube.
Wherein more preferably, the outer surface of described wire and described supporting tube is tangent, the tangential of described wire and described sealant.
Wherein more preferably, many described wires are evenly arranged around the excircle of described supporting tube.
Wherein more preferably, many described wires are arranged into plum blossom-shaped around the excircle of described supporting tube.
Wherein more preferably, the quantity of described wire is six.
Wherein more preferably, described sealant is made up of macromolecular material.
Wherein preferably, described macromolecular material is the one in polyurethane, polyethylene, polypropylene or nylon.
Ablation catheter provided by the invention, is configured with many wires at the outer surface of its supporting tube, is sealed respectively by different sealants to every bar wire, thus forms multiple tracks groove at the outer surface of ablation catheter.Compared with the internal structures such as wire being coated in prior art the design of circular pipe inside, the outer surface of surperficial fluted ablation catheter and the contact area of guiding catheter inwall less, frictional resistance declines to a great extent, and facilitates operation technique; Meanwhile, the space between surperficial fluted ablation catheter and guiding catheter is larger, can fully meet the requirements such as radiography in ablative surgery, lavation, anticoagulant.
Accompanying drawing explanation
Fig. 1 is the wire arrangement schematic diagram of surperficial fluted ablation catheter;
Fig. 2 is the schematic cross-section of the first embodiment of surperficial fluted ablation catheter;
Fig. 3 is the schematic cross-section of the second embodiment of surperficial fluted ablation catheter;
Fig. 4 is the schematic cross-section of surperficial fluted ablation catheter in guiding catheter;
Fig. 5 A is the schematic diagram in the space shown in Fig. 2 between ablation catheter and guiding catheter;
Fig. 5 B is the schematic diagram in the space between existing ablation catheter and guiding catheter.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Composition graphs 1 to Fig. 3 is known, and the fluted ablation catheter 10(in surface provided by the present invention hereafter, is called for short ablation catheter 10), comprise the supporting tube 1 being configured in centre and the many wires 2 be configured on the outer surface of supporting tube 1; Many wires 2 configure around the circumferencial direction of supporting tube 1, and every bar wire 2 extends along the length direction of supporting tube 1; All be configured with the sealant 3 for coated wire 2 in the outside of every bar wire 2, adjacent sealant 3 forms groove on the outer surface of supporting tube 1.
Figure 2 shows that the first embodiment provided by the present invention.Wherein, in the outside of circular support conduit 1, be configured with six wires 2 equably along its excircle direction, two wires adjacent one another are 2 form the angle of 60 ° with the line at supporting tube 1 center, thus six wires 2 are arranged into plum blossom-shaped around the excircle of supporting tube 1.Meanwhile, form ablation catheter 10 at every bar wire 1 outer setting one deck plastic sealing layer 3, the cross sectional shape of ablation catheter 10 is also in plum blossom-shaped.
As shown in Figure 2, in a first embodiment, the cross section being coated on the sealant 3 of the outside of wire 1 is circular arc, and the bottom of sealant 3 is connected with the intimate of supporting tube 1, forms an arc-shaped space; Wire 2 is configured in arc-shaped space.Meanwhile, adjacent sealant 3 forms groove on the outer surface of supporting tube 1.
Figure 3 shows that the second embodiment provided by the present invention.In this embodiment, the mode that configures in the excircle direction of supporting tube 1 of wire 2 is identical with the first embodiment with quantity.Its difference is, the cross sectional shape being coated on the sealant 3 of the outside of wire 1 is different.In second embodiment, the cross section of sealant 3 has the top of circular arc, and is connected with the base at circular arc top and the linear sidewall extended to the outer surface of supporting tube 1.The outer surface of circular arc top, linear type sidewall and supporting tube 1 forms a closed space, and wire 2 is configured at independently in enclosed space respectively.
In the above two embodiments, the sealant 3 that ablation catheter 10 comprises six wires, 2, six wire 2 outsides is independent of one another, does not contact with each other.But the increase of the quantity along with wire 2, or along with sealant 3 and the increase of the contact area of supporting tube 1, adjacent sealant 3 also can link together, and covers the outer surface of whole supporting tube 1.That is, sealant 3 can be independent of one another, also can connect as one, and forms an overall sealant.
In order to ensure intensity and the toughness of ablation catheter 10, sealant 3 can use macromolecular material to make, such as, use any one in polyurethane, polyethylene, polypropylene, nylon.When making ablation catheter 10, if the sealant 3 being coated on different conductor outside has formed an entirety, then can make sealant 3 by the macromolecular material directly in the outside cladding equal thickness of wire 2.
The fluted ablation catheter 10 in surface provided by the present invention, has compact conformation, the feature that volume is little.In order to compress the volume of ablation catheter 10 further, wire 2 can directly and the exterior surface of supporting tube 1, wire 2 also can with the tangential of sealant 3.That is, in this ablation catheter 10, wire 2 is tangent with the outer surface of supporting tube 1, simultaneously the tangential of wire 2 and sealant 3.
As shown in Figure 4, the fluted ablation catheter 10 in surface provided by the present invention, when carrying out ablative surgery, needs through guiding catheter 20, and sets up under the assistance of guiding catheter 20 from external to heart or arteriorenal passage.Below, composition graphs 5A is to the service condition of the fluted ablation catheter 10 in surface provided by the present invention, and the space between surperficial fluted ablation catheter 10 and guiding catheter 20 is introduced.Meanwhile, composition graphs 5A and Fig. 5 B compares columniform ablation catheter 10 ' normally used in the fluted ablation catheter in surface provided by the present invention 10 and prior art.
In prior art, the internal structures such as wire are coated on circular pipe inside by columniform ablation catheter 10 ', and its outer surface is smooth cylinder.As shown in Figure 5 B, when columniform ablation catheter 10 ' is by guiding catheter 20, columniform outer surface all may contact with the inner surface of guiding catheter 20, and contact area is larger.By comparison, as shown in Figure 5A, the fluted ablation catheter 10 in surface provided by the present invention, when by guiding catheter 20, only have the top of sealant 3 likely to contact with the inner surface of guiding catheter 20, contact area significantly reduces, frictional resistance declines, and facilitates operation technique.
Simultaneously, from the contrast of Fig. 5 A and Fig. 5 B, inner at the guiding catheter 20 with same pipe diameter size, space between the fluted ablation catheter 10 in surface and guiding catheter 20 is larger, be distributed in the groove of its outer surface, ablation catheter 10 ' in prior art and the space between guiding catheter 20 can be increased by more than 1 times.By effectively utilizing the space 15 between the groove of ablation catheter 10 outside and guiding catheter 20 inwall, can fully meet radiography in ablative surgery, lavation, the requirement of anticoagulant.This space can hold more contrast agent, strengthens contrasting effects; More lavation space can be obtained, improve the lavation effect of guiding catheter, can the anticoagulants such as more heparin be filled, play anticoagulation.
In sum, the fluted ablation catheter in surface provided by the invention, is configured with many wires at the outer surface of its supporting tube, is sealed respectively by different sealants to every bar wire, thus forms multiple tracks groove at the outer surface of ablation catheter.Compared with the internal structures such as wire being coated in prior art the design of circular pipe inside, the outer surface of surperficial fluted ablation catheter and the contact area of guiding catheter inwall less, frictional resistance declines to a great extent, and facilitates operation technique; Meanwhile, the space between surperficial fluted ablation catheter and guiding catheter is larger, can fully meet the requirements such as radiography in ablative surgery, lavation, anticoagulant.This surperficial fluted ablation catheter, can be applied in heart and arteriorenal radio-frequency ablation procedure simultaneously.
Above the fluted ablation catheter in surface provided by the present invention is described in detail.To those skilled in the art, to any apparent change that it does under the prerequisite not deviating from connotation of the present invention, all by formation to infringement of patent right of the present invention, corresponding legal responsibility will be born.
Claims (10)
1. the fluted ablation catheter in surface, is characterized in that:
Described ablation catheter comprises the supporting tube being configured in described ablation catheter centre, and is configured in many wires on the outer surface of described supporting tube; Many described wires configure around the circumferencial direction of described supporting tube, and wire described in every bar extends along the length direction of described supporting tube; Described in every bar, the exterior arrangement of wire has the sealant for coated described wire, and adjacent sealant forms groove on the outer surface of described supporting tube.
2. ablation catheter as claimed in claim 1, is characterized in that:
Described sealant has the cross section of circular arc, and the bottom of described sealant is connected with the intimate of described supporting tube, forms an arc-shaped space; Described conductor configurations is in described arc-shaped space.
3. ablation catheter as claimed in claim 1, is characterized in that:
The cross section of described sealant has the top of circular arc, and to be connected with the base at described circular arc top and the linear sidewall extended to the outer surface of described supporting tube, described conductor configurations is in the enclosed space be made up of the outer surface of circular arc top, linear type sidewall and described supporting tube.
4. ablation catheter as claimed in claim 1, is characterized in that:
Adjacent described sealant is connected to each other, and covers the outer surface of whole described supporting tube.
5. ablation catheter as claimed in claim 1, is characterized in that:
The outer surface of described wire and described supporting tube is tangent, the tangential of described wire and described sealant.
6. ablation catheter as claimed in claim 1, is characterized in that:
Many described wire is evenly arranged around the excircle of described supporting tube.
7. ablation catheter as claimed in claim 6, is characterized in that:
Many described wires are arranged into plum blossom-shaped around the excircle of described supporting tube.
8., as the ablation catheter in claim 1 ~ 7 as described in any one, it is characterized in that:
The quantity of described wire is six.
9. ablation catheter as claimed in claim 1, is characterized in that:
Described sealant is made up of macromolecular material.
10. ablation catheter as claimed in claim 9, is characterized in that:
Described macromolecular material is the one in polyurethane, polyethylene, polypropylene or nylon.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310463990.8A CN103505798B (en) | 2013-09-30 | 2013-09-30 | The fluted ablation catheter in surface |
| ES14748628T ES2921176T3 (en) | 2013-02-07 | 2014-02-07 | Method, radiofrequency ablation system and radiofrequency ablation device thereof |
| CN201490000298.XU CN205215353U (en) | 2013-02-07 | 2014-02-07 | Radio frequency melts system and radio frequency melts equipment thereof |
| US14/766,637 US9993291B2 (en) | 2013-02-07 | 2014-02-07 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| PCT/CN2014/000143 WO2014121664A1 (en) | 2013-02-07 | 2014-02-07 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| EP14748628.6A EP2954865B1 (en) | 2013-02-07 | 2014-02-07 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| JP2015556380A JP6453769B2 (en) | 2013-02-07 | 2014-02-07 | Induction cauterization method, system and induction cautery equipment |
| MYPI2015702559A MY179432A (en) | 2013-02-07 | 2014-02-07 | Radio frequency ablation method, system and radio frequency ablation device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310463990.8A CN103505798B (en) | 2013-09-30 | 2013-09-30 | The fluted ablation catheter in surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103505798A CN103505798A (en) | 2014-01-15 |
| CN103505798B true CN103505798B (en) | 2015-09-09 |
Family
ID=49889559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310463990.8A Active CN103505798B (en) | 2013-02-07 | 2013-09-30 | The fluted ablation catheter in surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103505798B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6453769B2 (en) | 2013-02-07 | 2019-01-16 | 上▲海▼魅▲麗▼▲緯▼叶医▲療▼科技有限公司 | Induction cauterization method, system and induction cautery equipment |
| CN107661141B (en) * | 2016-07-29 | 2020-08-28 | 先健科技(深圳)有限公司 | Ablation catheter |
| CN115154858A (en) * | 2022-07-26 | 2022-10-11 | 深圳高性能医疗器械国家研究院有限公司 | Burst wave balloon catheter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271750A (en) * | 2008-11-14 | 2011-12-07 | 明诺医学股份有限公司 | Selective drug delivery in a lumen |
| CN102274021A (en) * | 2010-04-21 | 2011-12-14 | 韦伯斯特生物官能(以色列)有限公司 | Dual-purpose lasso catheter with irrigation using circumferentially arranged ring bump electrodes |
| CN102462532A (en) * | 2011-10-25 | 2012-05-23 | 张石江 | Conduit system with label testing and ablation functions in blood vessels |
| CN202933013U (en) * | 2012-10-17 | 2013-05-15 | 上海安通医疗科技有限公司 | Balloon dilatation type multi-electrode radiofrequency ablation catheter |
-
2013
- 2013-09-30 CN CN201310463990.8A patent/CN103505798B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271750A (en) * | 2008-11-14 | 2011-12-07 | 明诺医学股份有限公司 | Selective drug delivery in a lumen |
| CN102274021A (en) * | 2010-04-21 | 2011-12-14 | 韦伯斯特生物官能(以色列)有限公司 | Dual-purpose lasso catheter with irrigation using circumferentially arranged ring bump electrodes |
| CN102462532A (en) * | 2011-10-25 | 2012-05-23 | 张石江 | Conduit system with label testing and ablation functions in blood vessels |
| CN202933013U (en) * | 2012-10-17 | 2013-05-15 | 上海安通医疗科技有限公司 | Balloon dilatation type multi-electrode radiofrequency ablation catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103505798A (en) | 2014-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8439909B2 (en) | Cooled ablation catheter with reciprocating flow | |
| DE60033143T2 (en) | DEVICE FOR ULTRASOUND ABLATION | |
| US9585708B2 (en) | Controlling coagulum formation | |
| US9622814B2 (en) | Irrigated ablation catheter system with pulsatile flow to prevent thrombus | |
| CN104427950A (en) | Catheter for the treatment of a trial flutter having single action dual deflection mechanism | |
| EP3307388B1 (en) | Ultrasound catheter | |
| US7731706B2 (en) | True angular catheter shaft deflection apparatus | |
| JP3094895B2 (en) | Ablation catheter | |
| RU2673377C2 (en) | Catheter adapted for use with guide for accessing vessels | |
| DE60031261T2 (en) | SYSTEM FOR POSITIONING A CATHETER | |
| US20070219551A1 (en) | Medical device with flexible printed circuit | |
| CN103505798B (en) | The fluted ablation catheter in surface | |
| JP2016525914A (en) | Catheter lead wire and manufacturing method thereof | |
| CN106535982A (en) | Medical apparatus for fluid communication | |
| CN105147389B (en) | Include the radio frequency ablation device and its ablation method of balloon occlusion type guiding catheter | |
| CN112638300B (en) | Ablation lesion device | |
| CN111202581A (en) | Radio frequency ablation catheter for hypertrophic cardiomyopathy operation | |
| EP4458291A1 (en) | Sleeve, injection device, injection system, ablation device and ablation system | |
| KR101000320B1 (en) | Bipolar electrode type guide wire and Catheter system using the same | |
| RU2487686C1 (en) | Method of treating resistant arterial hypertension | |
| CN218305102U (en) | Ablation electrode, annular ablation electrode and ablation equipment | |
| US20240277392A1 (en) | Systems and methods for isolating wires in electroporation devices | |
| Furushima et al. | Focal atrial tachycardia refractory to radiofrequency catheter ablation originating from right atrial appendage | |
| WO2017067517A1 (en) | Radio frequency ablation device comprising balloon blocking catheter and ablation method therefor | |
| KR20080110224A (en) | Catheter system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |