CN200960161Y - Net-cage electrode catheter - Google Patents
Net-cage electrode catheter Download PDFInfo
- Publication number
- CN200960161Y CN200960161Y CNU2006201480740U CN200620148074U CN200960161Y CN 200960161 Y CN200960161 Y CN 200960161Y CN U2006201480740 U CNU2006201480740 U CN U2006201480740U CN 200620148074 U CN200620148074 U CN 200620148074U CN 200960161 Y CN200960161 Y CN 200960161Y
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- electrode
- basket
- handle
- net
- catheter
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- Expired - Lifetime
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
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- 210000001174 endocardium Anatomy 0.000 abstract 1
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- 206010003658 Atrial Fibrillation Diseases 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000013153 catheter ablation Methods 0.000 description 3
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 3
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- 238000002560 therapeutic procedure Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
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Abstract
The utility model discloses a basket electrode catheter, comprising a handle part and a basket part, which includes a near-end ring coupling and a far-end ring coupling, as well as metal wires with isolated coating equally distributed between the two ring couplings. The metal wires are connected with the electrode interface of the handle through copper leads; the end of the far-end ring coupling is provide with a soft head; the center of metal wires is connected with metal electrodes, the controlling wires is connected with the far-end coupling on one end, and other end is connected with the draw rod of the handle. Metal wires of the basket are bent outside, so metal wires are stressed equally, with equivalent bending degree, to enclose to be an equal globe with the movement of the handspike; thus, during the course of survey on the outside orifices of pulmonary veins and ablation, catheter can realize stable and full contact between the endocardium and the electrode.
Description
Technical field
This utility model relates to technical field of medical instruments, is specifically related to a kind of novel basket mapping/linear ablation electrode catheter.
Background technology
Diagnosis mapping conduit is the electricity physiological signal that is used to write down each position in the heart, and heart is carried out electricity irritation, carries out the critical component of the electric physiology mapping of heart disease.Radio-frequency (RF) ablation catheter electrode conduit is used for heart is carried out ARR electric physiology mapping, cardiac temporary pacing and radio-frequency (RF) ablation.This Therapeutic Method had both avoided patient to open the hardship of breast, again can radical curing of disease, and do not stay any severe complication, obtain wide model at home and abroad clinically and use.
At present, domestic employed clinically electrode catheter mostly is external conduit company, is mainly Johnson Co., sage still to reach/IBI company, Bard company.Domestic only have Shenzhen Hui Tai company to produce.The formation of electrode catheter comprises two parts, the one, and far-end has the conduit of varying number electrode, and the 2nd, the external prolongation cable of connection physiograph or radiofrequency generator.Electrode catheter percutaneous, blood vessel are placed into the different parts of heart, and the bipolar or one pole signal of telecommunication in the decapacitation reliable recording chambers of the heart reaches intracardiac basic function with external electricity irritation impulsion or radio-frequency (RF) energy simultaneously.
" 93213964.7 " number utility model patent of Chinese patent discloses a kind of structure of marking the side ablation catheter of the prior art.It comprises a handle portion, a guiding steel wire, a conduit, platinum electrode and slider operating handle etc., platinum electrode connects an electrode that is fixed on the multistage plug of handle portion afterbody by the radio frequency lead and links to each other, guiding steel wire one end connects the slider operating handle, the afterbody of other end connecting duct, and the slider operating handle can axially slide backward 2-3 centimetre along handle portion, then can drive the guiding steel wire moves backward, thereby make the guiding-tube bend distortion, like this, by the relative motion of control slider operating handle along handle portion, can control the camber of conduit, be fit to cardiac structure with the character of showing conduit, enter the focus zone smoothly, carry out ablation.
Challenge was also proposed when arrhythmia such as 80-90 age catheter ablation treatment paroxysmal supraventricular tachycardia is achieved success from last century, the complicated arrhythmia after one's own heart therapeutic effect that waits of atrial fibrillation moving (atrial fibrillation) is still waiting improvement, since around discovery atrial fibrillations 90% such as French scholar Haissaguerre in 1999 originate from orifices of pulmonary veins, catheter ablation treatment atrial fibrillation has been obtained breakthrough, adopts the double-ring mapping electrode upper and lower orifices of pulmonary veins of mapping simultaneously when doctor (scholar) carries out catheter ablation treatment atrial fibrillation at present; Recent years, several producers of the U.S. such as Johnson ﹠ Johnson and IBI company have released cool brine perfusion radio-frequency (RF) ablation conduit, and Boston company has then released cooling type radio-frequency (RF) ablation conduit.In conjunction with advanced three-dimensional mapping system or intracardiac ultrasonic techniques such as Carto, EnSite3000, use pulmonary vein annular mapping conduit and cool brine perfusion radio-frequency (RF) ablation conduit, can carry out atrial fibrillation and melt.Yet even at more American-European famous electric physiology centers, it is still lower that present atrial fibrillation melts success rate, and relapse rate is up to 20%-30%.
Trace it to its cause, existing ablation catheter can only the pointwise mapping melt owing to its structural limitations, and can not guarantee the ablation line seriality, moreover time-consuming.In addition, adopt this Therapeutic Method price high.
The utility model content
The purpose of this utility model just provides a kind of electrode catheter of new structure.It is rational in infrastructure, can carry out the treatment of quick mapping and linear ablation.
For achieving the above object, net-cage electrode catheter of the present utility model comprises
A handle portion comprises a handle main body, and one the axially movable push rod of handle main body can the axially movable pull bar of relative handle main body with one relatively;
Three cavities conduit pipe body with a sweep, described catheter body one end and described push rod are connected, and the other end and a basket with netting on top partly couple, and are installed with a guiding steel wire, a control steel wire and a lead in described three cavitys respectively;
A basket part comprises proximal annular rim coupling and distal annular rim coupling, and is fixed on the equally distributed many tinsels that are covered with insulating coating between two annular couplings, and described each tinsel is connected to the electrode interface of handle portion by copper conductor; End at described distal annular rim male part also is fixed with soft head; Each mid portion cross-under wiry has metal electrode, an end of the described control steel wire far-end coupling that is connected, the other end handle portion pull bar that is connected.
Electrode catheter of the present utility model can spur the crooked and then drive catheter body bending of guiding steel wire by the push rod of operating grip part; The effect of pull bar is to spur the far-end coupling and moves to near-end, thereby force each tinsel flexural deformation radially outward of basket part, equate because each tinsel is stressed, so the diastrophic degree of each tinsel is suitable, along with the motion of push rod, each tinsel can surround a uniform spheroid gradually; Like this, in carrying out orifices of pulmonary veins outside mark side and ablation procedure, can realize stablizing, endocardial lead contact fully, thereby can realize quick mapping and linear ablation treatment.
Description of drawings
Fig. 1 is the net-cage electrode catheter structural representation.
Fig. 2 is the basket structural representation after the local amplification of Fig. 1.
Fig. 3 is the handle arrangement sketch map.
Fig. 4 is vertical cutaway view Amplified image of Fig. 3.
Fig. 5 is any one section three-dimensional cutaway view of described conduit.
Fig. 6 is the sketch map of basket after opening.
Fig. 7 is the conduit general illustration of basket after opening.
The specific embodiment
This utility model relates to a kind of basket type electrode catheter, basket part can be opened under a handle control so that the tissue of the electricity base on the basket and orifices of pulmonary veins fully, firmly contact the formation scar, below in conjunction with accompanying drawing, basket type electrode catheter of the present utility model is elaborated.
With reference to Fig. 1, the basket type electrode catheter in this utility model comprises macromolecular material catheter body 1, the basket 2 of catheter body one end, the handle of the catheter body other end, soft 3 of basket one end is through at copper conductor 4, metal backguy 5 and control steel wire 6 in the catheter body 1, and connects handle 7.
Kink 10 is by a control steel wire 6 control cambers, and control steel wire 6 can be one and also can be twisted into by the multiply finer wire; Control steel wire 6 one ends are fixed on the far-end push-and-pull part 71 that connects handle 7, and the other end extends to catheter tip and is fixed on basket 2.
With reference to Fig. 3,4, connect handle 7 and have 71, one handle bodies 72 of a far-end push-and-pull part and a near-end push-and-pull part 73, far-end push-and-pull part 71 handle body 72 is relatively done axially-movable, near-end push-and-pull part 73 also relatively handle body move vertically; This connection handle and mechanism can obtain from the market, such as pressure-operated switch or self-locking mechanism.Connect handle and also comprise a guidewire lumen, this guidewire lumen is communicated with first cavity 11 of cross-under copper conductor 4, copper conductor 4 extends out by the lead of a tape insulation skin, connects the union joint 8 of an outside, and this union joint is used for connecting radio-frequency electric current source or current detecting analytical equipment.
The soft head that catheter body 1, basket 2 are fixed on end of conduit is passed in the metal backguy 5 that is connected of one end of near-end push-and-pull part 73, the other end of metal backguy 5.With reference to Fig. 2,6, basket 2 is 0.1 to 0.2 millimeter nitinol alloy wire formation by symmetric many diameters that are welded on two rustless steel sleeve pipes 21 (close end rust steel thimble 211 and distal portion rust steel thimble 212), the nitinol alloy wire surface-coated has polyurethane film, electric insulation guarantees the signal quality of each utmost point.Centre position at the nitinol alloy wire of each bar through being coated with insulating layer coating is equipped with platinum electrode 22, and platinum electrode 22 is made by platinumiridio, and it has the copper cash of urethane film to connect copper conductor 4 by surface-coated; Close end rust steel thimble 211 is connected with the other end of catheter body 1, and the other end of distal portion rust steel thimble 212 connects a soft head, when in vascular, moving to reduce conduit to the stimulation of blood vessel wall.
Basket catheter of the present utility model can change the type of conduit by the length that changes electrode, as adopts 1 to 2 mm length electrode promptly to become the mapping conduit, and this is because can not make electrode partly contact with orifices of pulmonary veins; And when carrying out ablation, then need to select for use the electrode of 4 to 8 mm lengths, can increase the contact area of electrode and orifices of pulmonary veins part like this, with better formation cicatrix.In addition,, in electrode, can also add T type thermocouple, to obtain the temperature parameter of electrode as ablation catheter.
With reference to Fig. 6, when carrying out the atrial fibrillation mapping, use basket type mapping conduit (1 to 2 millimeter of electrode length), the conduit percutaneous, blood vessel, the atrial septal puncture art enters left room, under X ray monitors, at first push the far-end push-pull device at fixed of handle, conduit is occured bending and deformation, basket (also not opening) arrives orifices of pulmonary veins, push the near-end push-pull device at fixed of handle again, open basket, recline closely, carry out quick ring-type mapping until basket and orifices of pulmonary veins, its advantage be basket open the size adjustable at any time according to the size of patient's orifices of pulmonary veins, recline rapidly, reliably, can not overlap between the electrode, signal is clear.
Carrying out orifices of pulmonary veins when melting, select for use basket radio-frequency (RF) ablation conduit (4 to 8 millimeters of electrode diameters) conduit to enter left room, under X ray monitors, at first push the far-end push-pull device at fixed of handle, conduit is occured bending and deformation, basket (also not opening) arrives orifices of pulmonary veins, push the near-end push-pull device at fixed of handle again, open basket, recline closely, carry out quick ring-type linear ablation until basket and orifices of pulmonary veins.Operation is rapid, and it is complete to melt circle, the success rate height, and relapse rate is low.
By to description of the present utility model, should be appreciated that the various changes and the variant that do not deviate from this utility model essence all can realize this utility model.This utility model is not limited to above-mentioned embodiment, and should be interpreted as any or all of embodiment within the appended claim scope.
Claims (5)
1. a net-cage electrode catheter is characterized in that: comprise
A handle portion comprises a handle main body, and one the axially movable push rod of handle main body can the axially movable pull bar of relative handle main body with one relatively;
Three cavities conduit pipe body with a sweep, described catheter body one end and described push rod are connected, and the other end and a basket with netting on top partly couple, and are installed with a guiding steel wire, a control steel wire and a lead in described three cavitys respectively;
A basket part, comprise proximal annular rim coupling and distal annular rim coupling, and be fixed on the equally distributed many tinsels that are covered with insulating coating between two annular couplings, described each tinsel is connected to the electrode interface of handle portion by copper conductor, each mid portion cross-under wiry has metal electrode, one end of the described control steel wire far-end coupling that is connected, the other end handle portion pull bar that is connected.
2. net-cage electrode catheter according to claim 1 is characterized in that: the end at described distal annular rim male part also is fixed with soft head.
3. net-cage electrode catheter according to claim 1 is characterized in that: described electrode is 1 to 2 millimeter.
4. net-cage electrode catheter according to claim 1 is characterized in that: described electrode is 4 to 8 millimeters.
5. net-cage electrode catheter according to claim 4 is characterized in that: add T type thermocouple in the described electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201480740U CN200960161Y (en) | 2006-10-24 | 2006-10-24 | Net-cage electrode catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201480740U CN200960161Y (en) | 2006-10-24 | 2006-10-24 | Net-cage electrode catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200960161Y true CN200960161Y (en) | 2007-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201480740U Expired - Lifetime CN200960161Y (en) | 2006-10-24 | 2006-10-24 | Net-cage electrode catheter |
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| CN (1) | CN200960161Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101744659B (en) * | 2008-12-22 | 2011-12-14 | 邹承伟 | Bicoudate rotary surgical electrotome head |
| CN103479345A (en) * | 2013-09-30 | 2014-01-01 | 中国科学院深圳先进技术研究院 | Multi-channel electrode device capable of being used repeatedly |
| CN103750899A (en) * | 2014-01-21 | 2014-04-30 | 深圳市惠泰医疗器械有限公司 | Multi-electrode basket catheter and manufacture method thereof |
| CN103784196A (en) * | 2014-01-24 | 2014-05-14 | 上海魅丽纬叶医疗科技有限公司 | Cable type radiofrequency ablation catheter and manufacturing method thereof |
| CN104161589A (en) * | 2014-08-29 | 2014-11-26 | 慈溪舜业医疗器材有限公司 | Bendable electrode |
| CN104717918A (en) * | 2012-06-20 | 2015-06-17 | 波士顿科学医学有限公司 | Augmented signal vector analysis to suppress global activation during electrophysiology mapping |
| US9439578B2 (en) | 2012-12-27 | 2016-09-13 | Boston Scientific Scimed, Inc. | Artifact cancellation to suppress far-field activation during electrophysiology mapping |
| US9579064B2 (en) | 2014-06-03 | 2017-02-28 | Boston Scientific Scimed Inc. | Medical devices for mapping cardiac tissue |
| US9681817B2 (en) | 2012-12-20 | 2017-06-20 | Boston Scientific Scimed, Inc. | Suppression of global activation signals during anatomical mapping |
| US9993291B2 (en) | 2013-02-07 | 2018-06-12 | Shanghai Golden Leaf Med Tec Co., Ltd | Radio frequency ablation method, system and radio frequency ablation device thereof |
| US10016145B2 (en) | 2012-06-20 | 2018-07-10 | Boston Scientific Scimed, Inc. | Far-field vs local activation discrimination on multi-electrode EGMS using vector analysis in multi-dimensional signal space |
-
2006
- 2006-10-24 CN CNU2006201480740U patent/CN200960161Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101744659B (en) * | 2008-12-22 | 2011-12-14 | 邹承伟 | Bicoudate rotary surgical electrotome head |
| CN104717918B (en) * | 2012-06-20 | 2017-07-04 | 波士顿科学医学有限公司 | Enhanced signal phasor is analyzed to suppress global activation during Electrophysiological mapping |
| US10016145B2 (en) | 2012-06-20 | 2018-07-10 | Boston Scientific Scimed, Inc. | Far-field vs local activation discrimination on multi-electrode EGMS using vector analysis in multi-dimensional signal space |
| CN104717918A (en) * | 2012-06-20 | 2015-06-17 | 波士顿科学医学有限公司 | Augmented signal vector analysis to suppress global activation during electrophysiology mapping |
| US9681817B2 (en) | 2012-12-20 | 2017-06-20 | Boston Scientific Scimed, Inc. | Suppression of global activation signals during anatomical mapping |
| US9439578B2 (en) | 2012-12-27 | 2016-09-13 | Boston Scientific Scimed, Inc. | Artifact cancellation to suppress far-field activation during electrophysiology mapping |
| US9993291B2 (en) | 2013-02-07 | 2018-06-12 | Shanghai Golden Leaf Med Tec Co., Ltd | Radio frequency ablation method, system and radio frequency ablation device thereof |
| CN103479345A (en) * | 2013-09-30 | 2014-01-01 | 中国科学院深圳先进技术研究院 | Multi-channel electrode device capable of being used repeatedly |
| CN103479345B (en) * | 2013-09-30 | 2015-07-29 | 中国科学院深圳先进技术研究院 | Reused multi-channel electrode device |
| CN103750899A (en) * | 2014-01-21 | 2014-04-30 | 深圳市惠泰医疗器械有限公司 | Multi-electrode basket catheter and manufacture method thereof |
| CN103750899B (en) * | 2014-01-21 | 2016-04-27 | 深圳市惠泰医疗器械有限公司 | Multi-electrode basket catheter and preparation method thereof |
| CN103784196A (en) * | 2014-01-24 | 2014-05-14 | 上海魅丽纬叶医疗科技有限公司 | Cable type radiofrequency ablation catheter and manufacturing method thereof |
| US9579064B2 (en) | 2014-06-03 | 2017-02-28 | Boston Scientific Scimed Inc. | Medical devices for mapping cardiac tissue |
| CN104161589A (en) * | 2014-08-29 | 2014-11-26 | 慈溪舜业医疗器材有限公司 | Bendable electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN HUITAI MEDICAL INSTRUMENT CO., LTD. Free format text: FORMER OWNER: CHENG ZHENGHUI Effective date: 20081121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081121 Address after: The comprehensive building of Tsinghua Nanshan District Keyuan Road Shenzhen city of Guangdong Province, room 804, zip code: 518057 Patentee after: Shenzhen Huitai Medical Instrument Co., Ltd. Address before: Floor 9, building B, Tengfei Arts crafts emporium, No. 6, Peach Blossom Road, Futian Free Trade Zone, Guangdong, Shenzhen, 518038 Patentee before: Cheng Zhenghui |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071017 |
|
| EXPY | Termination of patent right or utility model |