CN202426651U - Coronary vein mapping catheter - Google Patents
Coronary vein mapping catheter Download PDFInfo
- Publication number
- CN202426651U CN202426651U CN2012200246239U CN201220024623U CN202426651U CN 202426651 U CN202426651 U CN 202426651U CN 2012200246239 U CN2012200246239 U CN 2012200246239U CN 201220024623 U CN201220024623 U CN 201220024623U CN 202426651 U CN202426651 U CN 202426651U
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- conduit
- surveyed
- mark
- electrode
- ring electrode
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Abstract
The utility model discloses a coronary vein mapping catheter and aims to solve the technical problem in identifying the exact position of a target. The coronary vein mapping catheter is provided with a catheter, wherein the far end of the catheter is a coronary sinus mapping section and provided with an annular ring electrode; the far end part of the catheter is provided with an end electrode; the near end of the catheter is connected with a connecting head; and the end electrode and the ring electrode are connected with the connecting head through leads. Compared with the prior art, the coronary sinus mapping section at the far end of the catheter can be straightened with elasticity and is an arc in a free state; the arc section of the coronary sinus mapping section is provided with the ring electrode and the end electrode; when the coronary vein far end of an outflow tract is mapped, swift feed can be done to shorten operation time; and the ring electrode on the arc section can lean on a great cardiac vein opening of the coronary vein far end to conduct mapping, therefore the time for identifying the position of the target in ablation and ablation energy are reduced. The coronary vein mapping catheter is convenient to operate and can realize fast and continuous mapping.
Description
Technical field
This utility model relates to a kind of medical interventional operation equipment, particularly a kind of mark survey conduit that is used to treat efferent tract ventricular arrhythmia radio-frequency ablation procedure.
Background technology
Ventricular arrhythmia particularly ventricular premature contraction is a common arrhythmia in clinic.Long-term Drug therapy side effect is big and curative effect is not good enough.In recent years, the patient who accepts the ventricular arrhythmia radiofrequency ablation therapy under the three-dimensional mapping systematic direction is more and more, but success rate of operation does not wait from 50～90%.The target spot that can seek RF ablation in the operation effectively, rapidly is the key of decision success rate of operation.For ventricular arrhythmia particularly for the ventricular premature contraction; The incidence rate of chamber morning, efferent tract chamber speed is up to more than 60%; Efferent tract chamber early position is complicated, relates on outflow tract of right ventricle, left ventricular outflow tract view, the valve of pulmonary trunk, positions such as aortic sinus, Coronary vein and far-end thereof.Quadrupole or ten utmost point coronary sinus mark of prior art is surveyed electrode and is difficult to place the Coronary vein far-end.Therefore, can't mark survey to the Coronary vein far-end that is positioned at the efferent tract position, inconvenient operative doctor need be looked for target spot.
Summary of the invention
The purpose of this utility model provides a kind of Coronary vein mark and surveys conduit, and the technical problem that solve is the definite position of clear and definite target spot.
This utility model adopts following technical scheme: a kind of Coronary vein mark is surveyed conduit; Said Coronary vein mark is surveyed conduit and is provided with conduit; The far-end of conduit is that the coronary sinus mark is surveyed section, and the coronary sinus mark is surveyed section and is provided with cyclic ring electrode, the axis of ring electrode and the axis coaxle of conduit; The distal end of conduit is provided with termination electrode, and the near-end of conduit is connected with union joint; It is that radius of curvature is the circular arc of 70-100mm in free state that said coronary sinus mark is surveyed section; Said termination electrode, ring electrode are electrically connected with the contact pin of union joint through lead.
The ring electrode of this utility model is 1-20, and said termination electrode is a cylindricality.
The termination electrode of this utility model is connected with catheter proximal end through safety line.
The conduit of this utility model adopts nylon elastomer, and external diameter is 1.40-2.40mm, and internal diameter is 1.00-2.00mm, long 650-1100mm.
The termination electrode of this utility model adopts rustless steel or platinumiridio, and external diameter is 1.00-2.40m, and length is 1-4mm; Said ring electrode adopts rustless steel or platinumiridio, and external diameter is 1.00-2.40mm, and internal diameter is 0.80-2.00mm, long 1-10mm.
Be spaced apart 2mm, 5mm, 8mm or 10mm between termination electrode of this utility model and ring electrode, the ring electrode.
Interval between termination electrode of this utility model and ring electrode, the ring electrode is 5mm or 10mm.
Interval between termination electrode of this utility model and ring electrode, the ring electrode begins from termination electrode, press 2mm, 5mm, 2mm, 2mm, 5mm, 2mm ..., rule is arranged, or press 2mm, 8mm, 2mm, 2mm, 8mm, 2mm ... the rule arrangement.
The lead of this utility model is the copper cash of external belt polyurethane coating, and copper wire diameter is 0.1-0.5mm.
The safety line of this utility model is by stranded the forming of 1-20 thigh stainless steel silk, and the silk footpath of stainless steel silk is 0.1-0.5mm.
This utility model compared with prior art, the coronary sinus of distal end of catheter mark is surveyed section and is had elasticity, can stretch; In free state is circular arc, and the coronary sinus mark is surveyed the section arc section ring electrode, termination electrode are set, when the Coronary vein far-end of efferent tract is marked survey; Can send to fast; Shorten operating time, the ring electrode on the arc section can lean against the mark of Coronary vein far-end great cardiac vein opening part and survey, and reduces the time and the ablation energy of clear and definite target position when melting; Easy to operate, can realize mark survey rapidly, continuously.
Description of drawings
Fig. 1 is that the Coronary vein mark of this utility model is surveyed the guide-tube structure sketch map.
Fig. 2 is the A-A figure of Fig. 1.
Fig. 3 is the union joint sketch map of this utility model.
Fig. 4 is the sheath pipe sketch map of this utility model.
Fig. 5 is that the Coronary vein mark of this utility model is surveyed conduit and sheath pipe sketch map.
Fig. 6 is that the Coronary vein mark of this utility model is surveyed a distal end of catheter coronary sinus mark survey section mould figure.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment this utility model is done further explain.As shown in Figure 1, the Coronary vein mark of this utility model is surveyed conduit, is provided with conduit 3; The far-end of conduit 3 is that the coronary sinus mark is surveyed section; The coronary sinus mark is surveyed section and is provided with cyclic ring electrode 2, and the axis coaxle of the axis of ring electrode 2 and conduit 3, the distal end of conduit 3 are provided with the termination electrode 1 of cylindricality; The axis coaxle of the axis of termination electrode 1 and conduit 3, the near-end of conduit 3 is connected with union joint 4.The coronary sinus mark is surveyed section and is had elasticity, can stretch, and be that radius of curvature is one section circular arc of 70-100mm in free state.
As shown in Figure 2, lead 5 is the copper cash of external belt polyurethane coating, and copper wire diameter is 0.1-0.5mm.Safety line 6 is by stranded the forming of 1-20 thigh stainless steel silk, and the silk footpath of stainless steel silk is 0.1-0.5mm.
As shown in Figure 3, union joint 4 is the standard component of outsourcing, is provided with the contact pin with union joint parallel axes, mutually insulated in the union joint 4, and the number of contact pin is the 4-20 pin.
As shown in Figure 5, the Coronary vein mark of this utility model is surveyed and is put into the sheath pipe when conduit uses.As shown in Figure 4; The sheath pipe is provided with sheath pipe body 8, and the near-end of sheath pipe body 8 is connected with female luer 7, and female luer 7 is injection moulding outsourcing standard component; Sheath pipe body 8 adopts medical plastic macromolecular material nylon elastomer Pebax; External diameter is 2.00-2.5mm, and internal diameter is 1.8-2.3mm, and length is 850-1200mm.
The Coronary vein mark of this utility model is surveyed conduit in order to the preparation of below method, may further comprise the steps:
One, makes each part; Make conduit 3; Adopt the nylon elastomer Pebax5533 pipe of U.S. Access Point Technologies US company (www.aptmed.com), external diameter is 1.40-2.40mm, and internal diameter is 1.00-2.00mm; Long 650-1100mm bores 1-20 aperture after the CSd mark of conduit is surveyed the section brake forming.Adopt the village to believe the cylindrical end electrode 1 of ten thousand rich trade (Shenzhen) company limiteies, external diameter is 1.00-2.40m, and length is 1-4mm.The ring electrode 2 of marine gram metal trade Co., Ltd in the employing, external diameter is 1.00-2.40mm, internal diameter is 0.80-2.00mm, long 1-10mm, the quantity of ring electrode is 1-20.Making lead 5, is 0.1-0.5mm with the copper wire diameter of U.S. MWS WIRE INDUSTRIES company (www.mwswire.com), the line 650-1100mm of external belt polyurethane coating, and polyurethane coating is peelled off at two ends, exposes copper cash 0.2cm, obtains lead.Make safety line 6, the village is believed the 1-20 thigh diameter of Wan Feng trade Co., Ltd is 0.1-0.5mm, to be that the stainless steel silk of 650-1100mm is stranded form length, obtains safety line.
As shown in Figure 6, the mould that the Coronary vein mark is surveyed the CSd mark survey section of conduit is thread, and far-end is the sweep of one section circular arc, and the radius of curvature of sweep is 70-100mm.The moulding process that the Coronary vein mark is surveyed the CSd mark survey section of conduit is: mould is penetrated in the conduit; Conduit is positioned on the BS-50 type thermoforming machine of prosperous pair of Industrial Co., Ltd. of the section manufacturing in Shenzhen; Room temperature is through heating-up temperature 100-300 ℃ of 20-100 time second to thermoforming, and be 100-800 second heat time heating time, and be that 100-800 second is to room temperature cool time; Extract mould out from conduit, the Coronary vein mark that obtains molding is surveyed the CSd mark survey section of conduit.The best is 250 ℃ of 250 second time to temperature, and be 500 seconds heat time heating time, and be 500 seconds cool time.
Two, respectively an end of every lead 5 is welded in the ring electrode 2, an end of a lead 5, safety line 6 is received termination electrode 1 one ends through Resistance Welding, welding temperature is 450 ℃.Lead 5 other ends are put in conduit 3 respectively from aperture; The other end of a lead 5, safety line 6 far-end from conduit 3 is put in; With the ring electrode that has welded lead 52; The termination electrode 1 that has welded lead 5, safety line 6 is contained in the CSd mark survey section of conduit 3 together; With size and the equirotal wild card instrument of ring electrode 2 external diameters ring electrode 2 chuckings are fixed to the coronary sinus mark and survey on the section, termination electrode 1 is assembled to the far-end that the coronary sinus mark is surveyed section, and termination electrode 1 usefulness medical grade glue is adhesively fixed on the far-end that the coronary sinus mark surveys section.Lead 5 and safety line 6 are pulled out in conduit 3 proximal orifice; Safety line 6 fixedly is bolted to the near-end of conduit 3; The other end of lead 5 is welded in the contact pin of union joint 4 according to pre-assigned position, and the union joint 4 of screwing is accomplished the making that the Coronary vein mark is surveyed conduit.
When the doctor performs the operation; Coronary vein mark is surveyed distal end of catheter coronary sinus mark surveys section and penetrate the sheath pipe from near-end, treat that the coronary sinus mark is surveyed section and all got in the sheath pipes after, through the sheath pipe; Deliver to the mark survey to Coronary vein mark survey distal end of catheter coronary sinus mark survey section and subscribe the position; After arrive subscribing the position, the Coronary vein mark is surveyed the coronary sinus mark of distal end of catheter and surveyed a section release sheath pipe, under X-ray, observe the Coronary vein mark and survey distal end of catheter coronary sinus mark and survey section and discharge the back and be case of bending.The doctor holds the coronary sinus mark that union joint operation makes the Coronary vein mark survey conduit and surveys section and closely contacted by the myocardial sites of mark survey; If electrode retaining collar can not finely touch the position of being surveyed by mark; Union joint is rotated to an angle; Handle Coronary vein mark survey conduit coronary sinus mark survey section is deflected, reach electrode retaining collar and closely contact with the position of cardiac muscle quilt mark survey.Held stationary Coronary vein mark is surveyed the coronary sinus mark of conduit and is surveyed section.In order to confirm the mark point position accurately, mark survey before, can carry out local radiography to intracardiac position earlier, treat accurately to judge the postpone of mark location, the union joint of surveying conduit to the Coronary vein mark is connected to through general electric connection line leads appearance more, marks survey.
Embodiment 1: isolated test, adopt one of fresh beef, size 200 * 200 * 100mm; The Coronary vein mark of this utility model is surveyed one in conduit, and the termination electrode diameter is 2mm, and the ring electrode length that each mark is surveyed is 1mm; 9 of ring electrode quantity; Begin from far-end, the interval between termination electrode and ring electrode, the ring electrode is followed successively by 2mm, 8mm, 2mm, 8mm, 2mm, 8mm, 2mm, 8mm, 2mm, leads the polygraph that appearance is a prior art more.Test divides two processes, and first process is that 9 ring electrodes are marked survey one by one.After Coronary vein mark is surveyed distal end of catheter coronary sinus mark and surveyed section and insert beef, handle union joint, the coronary sinus mark that makes the Coronary vein mark survey distal end of catheter is surveyed section and is free release conditions, and the ring electrode that lets the coronary sinus mark survey on the section closely contacts with beef.The lead of 9 electrodes and 1 termination electrode be connected on lead on the appearance more, set and lead appearance more and survey for mark one by one, in the process of the test, each electrode mark survey normally, normal value is between 60～100bpm, all in scope.Second process is that bipolar mark is surveyed, i.e. bipolar mark survey between termination electrode and first ring electrode, second ring electrode and the 3rd ring electrode, the 4th ring electrode and the 5th ring electrode, the 6th ring electrode and the 7th ring electrode, the 8th ring electrode and the 9th ring electrode.After Coronary vein mark is surveyed distal end of catheter coronary sinus mark and surveyed section and insert beef, handle union joint, the coronary sinus mark that makes the Coronary vein mark survey distal end of catheter is surveyed section and is free release conditions, and the ring electrode that lets the coronary sinus mark survey on the section closely contacts with beef.In the process of the test, electrode mark in every the two poles of the earth is surveyed normal, and normal value is between 60～100bpm, all in scope.
Embodiment 2: the Canis familiaris L. live body, and healthy public Canis familiaris L., body weight is more than 20 kilograms, 2 years old age.The Coronary vein mark of this utility model is surveyed one in conduit; The external diameter that the CSd mark is surveyed section is 1.3mm, and each ring electrode length is 1mm, 9 of number of electrodes; The length of termination electrode is 2mm; External diameter is 1.2mm, begins from far-end, and the interval between termination electrode and ring electrode, the ring electrode is followed successively by 2mm, 8mm, 2mm, 8mm, 2mm, 8mm, 2mm, 8mm, 2mm.The Coronary vein mark of this utility model is surveyed the coronary sinus mark survey section of conduit and sent into Coronary vein, carry out the branch of the clear and definite Coronary vein of radiography simultaneously, under Siemens DSAX ray is kept watch on through the sheath pipe; The operator pushes union joint; Make the Coronary vein mark survey conduit and bend, far-end is sent to Coronary vein far-end great cardiac vein opening part, pushes the Coronary vein mark to far-end again and surveys conduit; Its CSd mark is surveyed section to be released; Promote union joint, make the coronary sinus mark survey section and deflect, arrive Coronary vein far-end great cardiac vein opening part.The operator grasps union joint; Control Coronary vein mark is surveyed conduit integral body and is advanced to far-end; The coronary sinus mark that makes Coronary vein mark survey conduit is surveyed ring electrode on the section Coronary vein far-end great cardiac vein opening part that closely reclines; Electric connection line is connected to leads appearance more, and the Coronary vein far-end of efferent tract is marked survey.Begin from far-end, the value of each utmost point is 82bpm, 88bpm, 77bpm, 89bpm, 75bpm, 84bpm, 80bpm, 94bpm, 78bpm, 90bpm, and this is worth all in normal range.This shows that the mark survey that the Coronary vein mark of this utility model is surveyed conduit meets the demands.
Claims (10)
1. a Coronary vein mark is surveyed conduit; It is characterized in that: said Coronary vein mark is surveyed conduit and is provided with conduit (3); The far-end of conduit (3) is that the coronary sinus mark is surveyed section, and the coronary sinus mark is surveyed section and is provided with cyclic ring electrode (2), the axis coaxle of the axis of ring electrode (2) and conduit (3); The distal end of conduit (3) is provided with termination electrode (1), and the near-end of conduit (3) is connected with union joint (4); It is that radius of curvature is the circular arc of 70-100mm in free state that said coronary sinus mark is surveyed section; Said termination electrode (1), ring electrode (2) are electrically connected through the contact pin of lead (5) with union joint (4).
2. Coronary vein mark according to claim 1 is surveyed conduit, and it is characterized in that: said ring electrode (2) is 1-20, and said termination electrode (1) is a cylindricality.
3. Coronary vein mark according to claim 1 is surveyed conduit, and it is characterized in that: said termination electrode (1) is connected with conduit (3) near-end through safety line (6).
4. Coronary vein mark according to claim 1 is surveyed conduit, and it is characterized in that: said conduit (3) adopts nylon elastomer, and external diameter is 1.40-2.40mm, and internal diameter is 1.00-2.00mm, long 650-1100mm.
5. Coronary vein mark according to claim 1 is surveyed conduit, and it is characterized in that: said termination electrode (1) adopts rustless steel or platinumiridio, and external diameter is 1.00-2.40m, and length is 1-4mm; Said ring electrode (2) adopts rustless steel or platinumiridio, and external diameter is 1.00-2.40mm, and internal diameter is 0.80-2.00mm, long 1-10mm.
6. Coronary vein according to claim 1 mark is surveyed conduit, it is characterized in that: be spaced apart 2mm, 5mm, 8mm or 10mm between said termination electrode (1) and ring electrode (2), the ring electrode (2).
7. Coronary vein mark according to claim 5 is surveyed conduit, and it is characterized in that: the interval between said termination electrode (1) and ring electrode (2), the ring electrode (2) is 5mm or 10mm.
8. Coronary vein mark according to claim 5 is surveyed conduit; It is characterized in that: the interval between said termination electrode (1) and ring electrode (2), the ring electrode (2) begins from termination electrode (1); Press 2mm, 5mm, 2mm, 2mm, 5mm, 2mm ...; Rule is arranged, or press 2mm, 8mm, 2mm, 2mm, 8mm, 2mm ... the rule arrangement.
9. Coronary vein mark according to claim 1 is surveyed conduit, and it is characterized in that: said lead (5) is the copper cash of external belt polyurethane coating, and copper wire diameter is 0.1-0.5mm.
10. Coronary vein mark according to claim 1 is surveyed conduit, it is characterized in that: said safety line (6) is by stranded the forming of 1-20 thigh stainless steel silk, and the silk footpath of stainless steel silk is 0.1-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200246239U CN202426651U (en) | 2012-01-19 | 2012-01-19 | Coronary vein mapping catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200246239U CN202426651U (en) | 2012-01-19 | 2012-01-19 | Coronary vein mapping catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202426651U true CN202426651U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200246239U Expired - Lifetime CN202426651U (en) | 2012-01-19 | 2012-01-19 | Coronary vein mapping catheter |
Country Status (1)
| Country | Link |
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| CN (1) | CN202426651U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579037A (en) * | 2012-01-19 | 2012-07-18 | 洪浪 | Coronary vein mapping catheter and preparation method thereof |
| CN104665922A (en) * | 2015-02-26 | 2015-06-03 | 首都医科大学附属北京安贞医院 | Marshall ligament absolute ethyl alcohol ablation system |
| WO2016059027A1 (en) * | 2014-10-13 | 2016-04-21 | Dr Philippe Debruyne Bvba | Limited ablation for the treatment of sick sinus syndrome and other inappropriate sinus bradycardias |
| CN114404035A (en) * | 2022-01-21 | 2022-04-29 | 杭州德诺电生理医疗科技有限公司 | Ablation device |
| CN114557765A (en) * | 2022-01-17 | 2022-05-31 | 安隽医疗科技(南京)有限公司 | Bipolar three-way radio frequency ablation catheter system |
-
2012
- 2012-01-19 CN CN2012200246239U patent/CN202426651U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579037A (en) * | 2012-01-19 | 2012-07-18 | 洪浪 | Coronary vein mapping catheter and preparation method thereof |
| CN102579037B (en) * | 2012-01-19 | 2015-02-04 | 洪浪 | Coronary vein mapping catheter and preparation method thereof |
| WO2016059027A1 (en) * | 2014-10-13 | 2016-04-21 | Dr Philippe Debruyne Bvba | Limited ablation for the treatment of sick sinus syndrome and other inappropriate sinus bradycardias |
| CN104665922A (en) * | 2015-02-26 | 2015-06-03 | 首都医科大学附属北京安贞医院 | Marshall ligament absolute ethyl alcohol ablation system |
| CN104665922B (en) * | 2015-02-26 | 2017-01-18 | 首都医科大学附属北京安贞医院 | Marshall ligament absolute ethyl alcohol ablation system |
| CN114557765A (en) * | 2022-01-17 | 2022-05-31 | 安隽医疗科技(南京)有限公司 | Bipolar three-way radio frequency ablation catheter system |
| CN114557765B (en) * | 2022-01-17 | 2024-08-02 | 安隽医疗科技(南京)有限公司 | Bipolar three-way radio frequency ablation catheter system |
| CN114404035A (en) * | 2022-01-21 | 2022-04-29 | 杭州德诺电生理医疗科技有限公司 | Ablation device |
| CN114404035B (en) * | 2022-01-21 | 2024-08-16 | 杭州德诺电生理医疗科技有限公司 | Ablation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
|
| CX01 | Expiry of patent term |