CN201375561Y - Left atrium pulmonary vein electrode catheter - Google Patents
Left atrium pulmonary vein electrode catheter Download PDFInfo
- Publication number
- CN201375561Y CN201375561Y CN200920105475U CN200920105475U CN201375561Y CN 201375561 Y CN201375561 Y CN 201375561Y CN 200920105475 U CN200920105475 U CN 200920105475U CN 200920105475 U CN200920105475 U CN 200920105475U CN 201375561 Y CN201375561 Y CN 201375561Y
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- electrode
- electrode ring
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- 210000003492 pulmonary vein Anatomy 0.000 title abstract description 21
- 210000005246 left atrium Anatomy 0.000 title abstract description 7
- 210000004072 lung Anatomy 0.000 claims description 18
- 210000003462 vein Anatomy 0.000 claims description 18
- 238000007674 radiofrequency ablation Methods 0.000 abstract description 3
- 230000004936 stimulating effect Effects 0.000 abstract description 3
- 238000003745 diagnosis Methods 0.000 abstract description 2
- 210000002837 heart atrium Anatomy 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 206010003658 Atrial Fibrillation Diseases 0.000 description 4
- 238000002679 ablation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 208000001435 Thromboembolism Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002001 electrophysiology Methods 0.000 description 1
- 230000007831 electrophysiology Effects 0.000 description 1
- 210000003191 femoral vein Anatomy 0.000 description 1
- 210000004971 interatrial septum Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000005245 right atrium Anatomy 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model discloses a left atrium pulmonary vein electrode catheter which belongs to the field of medical appliance. The left atrium pulmonary vein electrode catheter comprises a sleeve, an operating handle connected with the tail end of the sleeve, and a head end electrode ring located at the front end of the sleeve. A plurality of electrodes are distributed in the head end electrode ring. The head end electrode ring comprises a far-end electrode ring and a near-end electrode ring which take a helical structure and are connected with each other. A space is located between the far-end electrode ring and the near-end electrode ring, and the diameter of the far-end electrode ring is less than that of the near-end electrode ring. The LAPUL electrodes of the utility model respectively take the near-end or far-end electrodes as stimulating electrodes so as to record incoming and outgoing motion of the electric potential, and can simultaneously record the electric potentials the pulmonary vein and the atria position of the left atrium pulmonary vein. Moreover, the left atrium pulmonary vein electrode catheter of the utility model can be used as an updated product of the LASSO electrode catheter in the radio frequency ablation operation and diagnosis.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of electrode catheter that is used for heart intervene operation treatment diagnosis usefulness.
Prior art
Atrial fibrillation be clinical in common cardiac arrhythmia, relatively effectively treatment is the radio-frequency (RF) ablation operation at present.The electrode catheter that is usually used in diagnosing in the art is LASSO at present, its structure as shown in Figure 2, have a sleeve pipe 2 ' and an operating grip 3 ', the head end electrode retaining collar 1 ' of sleeve pipe 2 ' be one circular, one group of a plurality of electrode A 1 '～A10 ' that wherein distributes, each electrode is connected in the operating grip 3 ' by the conductive leads of being located in the sleeve pipe 2 '.
For the atrial fibrillation radio-frequency (RF) ablation, the current potential that writes down pulmonary vein and vestibule position simultaneously is extremely important.The current potential that writes down these two positions simultaneously can write down the relation of four pulmonary vein connecting left room and vestibule position current potential exactly, judges the pulmonary vein that the atrial fibrillation origin is correlated with more accurately, for radiofrequency ablation therapy provides target spot more accurately.Simultaneously in ablation procedure, the current potential of the electrode record by the vestibule position can be judged the effect of pulmonary vein isolation, position, incomplete isolated gap is still mended a little melt, and reaches thorough isolation effect, the minimizing postoperative recurrence.Though LASSO is multipole electrode, electrode is one group only, is arranged in diameter 15mm or 20mm annulus, therefore in each the use, only can write down pulmonary vein current potential or vestibule current potential separately, and can not write down the two current potential simultaneously.If will realize record simultaneously, must use two diameter Different L ASSO electrodes, one places pulmonary vein, and another places vestibule position, left room.Use the shortcoming of two LASSO to be: (1) electrode is put and is difficult for accurately putting in place, especially preceding chamber electrode; (2) bipolar electrode takies the venous sheath tube passage, if need simultaneously to melt at record, must increase venous channel, increases puncture procedure, and the patient's bleeding risk is bigger; (3) number of electrodes is many in the left room, and thrombosis generation probability increases, and the thromboembolism risk strengthens.
The utility model content
The left lung vein electrode catheter that the purpose of this utility model is to provide a kind of more accurately mapping and is applicable to the current potential that writes down pulmonary vein and vestibule position simultaneously, called after LAPUL.
Left lung vein electrode catheter of the present utility model comprises a sleeve pipe, and an operating grip that is connected with the sleeve pipe tail end, and the head end electrode retaining collar that is positioned at the sleeve pipe front end are distributed with a plurality of electrodes in the head end electrode retaining collar; Characteristics are: described head end electrode retaining collar is to interconnect the remote electrode ring and the proximal electrode ring of structure in the shape of a spiral, between remote electrode ring and the proximal electrode ring spacing is arranged, and the remote electrode ring diameter is less than the proximal electrode ring diameter.
Concrete, described remote electrode ring and proximal electrode ring distance are 15～25mm; The remote electrode ring is the annulus of diameter 15mm, ten electrodes that wherein distribute, electrode spacing 5mm; The proximal electrode ring is the annulus of diameter 20mm, ten electrodes that wherein distribute, and electrode spacing is 7mm; The wide 1mm of each electrode.
In the described left lung vein electrode catheter, operating grip inside is provided with electrod-array, and the electrod-array receiving terminal connects the conductive leads of 20 electrodes respectively, and establishes 20 corresponding little interfaces of electrode.
Adopt above technical scheme, the twin nuclei that the head end electrode retaining collar is designed to interconnect spiral form of the present utility model, to be distributed in near-end in the different rings or remote electrode respectively as stimulating electrode, the record current potential imports the activity of spreading out of into, make dicyclo be positioned at different positions in the once-through operation, have the function of the current potential that writes down pulmonary vein and left lung vein vestibule position simultaneously, be applicable to the situation that writes down the different parts current potential simultaneously.
Description of drawings
Fig. 1 is the structure chart of this utility model LAPUL;
Figure 1A is that catheter end head amplifies plane structure chart among Fig. 1;
Figure 1B is a catheter end head spiral axonometric chart among Fig. 1;
Fig. 2 is the structure chart of existing LASSO;
Fig. 2 A is that catheter end head amplifies plane structure chart among Fig. 2;
Fig. 2 B is a catheter end head form axonometric chart among Fig. 2.
The specific embodiment
This utility model is designed new-type left lung vein electrode catheter LAPUL on existing left lung vein electrode catheter LASSO basis.In general, LAPUL is used for assisting electrocardiographicassignment assignment test when intracardiac electrophysiology is checked for diagnosing with adjustable curved multi-electrode spiral shaped catheter, is applicable to mapping pulmonary vein and left lung vein vestibule place current potential in the atrial fibrillation radio-frequency ablation procedure especially targetedly.
Left lung vein electrode catheter LAPUL of the present utility model is identical with original LASSO, referring to shown in Figure 1, mainly is made up of head end electrode retaining collar 1 three parts of sleeve pipe 2, the operating grip 3 that links to each other with sleeve pipe 2 and sleeve pipe 2.Sleeve pipe 2 can use plastics, terylene woven material or novel extruding synthetic material such as polyurethane etc. to make.
Wherein: head end electrode retaining collar 1 is for the whole circular sped structure of bend-adjusted, referring to Figure 1B, when using and the distance of operating grip 3 (staying external), is divided into remote electrode ring 11 and proximal electrode ring 12, and dinuclear vertical dimension d is 15～25mm.
Referring to Figure 1A, be distributed with some platinumiridio electrode A 1～A20 in the head end electrode retaining collar 1, the wide 1mm of each electrode; All electrode arrangement are divided into two groups, and every group all circularizes arrangement, and 11 1 groups on remote electrode ring is totally ten electrode A 1～A10, surrounds diameter ф
1Be 15mm annulus, electrode spacing 5mm; Ten the electrode A 11～A20 in back become one group to be distributed in the proximal electrode ring 12, surround diameter ф
2Be the annulus of 20mm, electrode spacing is 7mm.
Identical with existing LASSO, the conductive leads of all electrodes (omitting among the figure) is located in the sleeve pipe 2, and the current potential that each electrode records spreads out of by conductive leads; Operating grip 3 head ends are provided with wing button, wing button is connected with internal piston, by the wing button control piston of push-and-pull, piston can be regulated the head end camber, head end bending during preceding pushing away, and head end stretches (design of operating grip control section is identical with LASSO) during post-tensioning, operating grip 3 inside are provided with electrod-array, receiving terminal connects the conductive leads of 20 electrodes respectively, and establishes corresponding 20 little interfaces of electrode (omitting among the figure), in order to be connected with adapter electrode signal is imported the polygraph analysis.
When this utility model uses, rule of operation according to existing LASSO, earlier the venous sheath pipe is entered left atrium along femoral vein to the right atrium interatrial septum that wore long, LAPUL electrode head end is sent into along the venous sheath pipe, under X-ray contrast machine perspective, LAPUL electrode head end (Double helix) is entered fully the left atrium position of heart.By adjustable bending of the hand handle the head end electrode retaining collar is aimed at the pulmonary vein direction and continue to be fed into, send into that operating grip turns clockwise in the process,, the remote electrode ring is accurately inserted to adjust again behind the pulmonary vein earlier and make the proximal electrode ring abut in the vestibule position by the contrast machine monitoring; The electrode tail end is connected with electric physiology polygraph, records current potential.
Can recognize by above description, this utility model LAPUL electrode respectively with near-end or remote electrode as recording electrode and stimulating electrode (both can write down also to stimulate), the record current potential imports the activity of spreading out of into, can write down the current potential at pulmonary vein and left lung vein vestibule position simultaneously.This utility model LAPUL multiple electrode catheter advantage is: (1) after the pulmonary vein electrode puts in place before chamber electrode put in place naturally, reduce in the atrium electrode and operate; (2) only take a venous channel, when writing down pulmonary vein and vestibule current potential simultaneously, all the other venous accesses can also carry out ablation; (3) stimulate respectively by two arrays of electrodes, can more accurate judgement pulmonary vein isolation effect, determine the operation terminal point.
Claims (8)
1, a kind of left lung vein electrode catheter, comprise a sleeve pipe, one operating grip that is connected with the sleeve pipe tail end, and the head end electrode retaining collar that is positioned at the sleeve pipe front end, be distributed with a plurality of electrodes in the head end electrode retaining collar, it is characterized in that: described head end electrode retaining collar is to interconnect the remote electrode ring and the proximal electrode ring of structure in the shape of a spiral, between remote electrode ring and the proximal electrode ring spacing is arranged, and the remote electrode ring diameter is less than the proximal electrode ring diameter.
2, according to the described left lung vein electrode catheter of claim 1, it is characterized in that: described remote electrode ring and proximal electrode ring distance are 15～25mm.
3, according to claim 1 or 2 described left lung vein electrode catheters, it is characterized in that: described remote electrode ring is the annulus of diameter 15mm.
4, according to the described left lung vein electrode catheter of claim 3, it is characterized in that: ten electrodes that distribute in the described remote electrode ring, electrode spacing 5mm.
5, according to claim 1 or 2 described left lung vein electrode catheters, it is characterized in that: described proximal electrode ring is the annulus of diameter 20mm.
6, according to the described left lung vein electrode catheter of claim 5, it is characterized in that: ten electrodes that distribute in the described proximal electrode ring, electrode spacing is 7mm.
7, according to the described left lung vein electrode catheter of claim 1, it is characterized in that: described remote electrode ring and proximal electrode ring distance are 15～25mm; The remote electrode ring is the annulus of diameter 15mm, ten electrodes that wherein distribute, electrode spacing 5mm; The proximal electrode ring is the annulus of diameter 20mm, ten electrodes that wherein distribute, and electrode spacing is 7mm; The wide 1mm of each electrode.
8, according to the described left lung vein electrode catheter of claim 7, it is characterized in that: described operating grip inside is provided with electrod-array, and the electrod-array receiving terminal connects the conductive leads of 20 electrodes respectively, and establishes 20 corresponding little interfaces of electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920105475U CN201375561Y (en) | 2009-02-11 | 2009-02-11 | Left atrium pulmonary vein electrode catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920105475U CN201375561Y (en) | 2009-02-11 | 2009-02-11 | Left atrium pulmonary vein electrode catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201375561Y true CN201375561Y (en) | 2010-01-06 |
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ID=41515654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920105475U Expired - Fee Related CN201375561Y (en) | 2009-02-11 | 2009-02-11 | Left atrium pulmonary vein electrode catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201375561Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015113034A1 (en) * | 2014-01-27 | 2015-07-30 | Medtronic Ardian Luxembourg S.A.R.L. | Neuromodulation catheters having jacketed neuromodulation elements and related devices, systems, and methods |
| CN117481790A (en) * | 2024-01-03 | 2024-02-02 | 梅奥心磁(杭州)医疗科技有限公司 | Double-ring high-density mapping ablation catheter |
-
2009
- 2009-02-11 CN CN200920105475U patent/CN201375561Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015113034A1 (en) * | 2014-01-27 | 2015-07-30 | Medtronic Ardian Luxembourg S.A.R.L. | Neuromodulation catheters having jacketed neuromodulation elements and related devices, systems, and methods |
| US10166069B2 (en) | 2014-01-27 | 2019-01-01 | Medtronic Ardian Luxembourg S.A.R.L. | Neuromodulation catheters having jacketed neuromodulation elements and related devices, systems, and methods |
| US11154353B2 (en) | 2014-01-27 | 2021-10-26 | Medtronic Ardian Luxembourg S.A.R.L. | Neuromodulation catheters having jacketed neuromodulation elements and related devices, systems, and methods |
| EP4059563A1 (en) * | 2014-01-27 | 2022-09-21 | Medtronic Ireland Manufacturing Unlimited Company | Neuromodulation catheters having jacketed neuromodulation elements and related devices |
| EP4253024A3 (en) * | 2014-01-27 | 2023-12-27 | Medtronic Ireland Manufacturing Unlimited Company | Neuromodulation catheters having jacketed neuromodulation elements and related devices |
| CN117481790A (en) * | 2024-01-03 | 2024-02-02 | 梅奥心磁(杭州)医疗科技有限公司 | Double-ring high-density mapping ablation catheter |
| CN117481790B (en) * | 2024-01-03 | 2024-04-05 | 梅奥心磁(杭州)医疗科技有限公司 | Double-ring high-density mapping ablation catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20150211 |
|
| EXPY | Termination of patent right or utility model |