CN202821623U - Multi-pole umbrella-shaped radiofrequency ablation catheter - Google Patents
Multi-pole umbrella-shaped radiofrequency ablation catheter Download PDFInfo
- Publication number
- CN202821623U CN202821623U CN 201220533059 CN201220533059U CN202821623U CN 202821623 U CN202821623 U CN 202821623U CN 201220533059 CN201220533059 CN 201220533059 CN 201220533059 U CN201220533059 U CN 201220533059U CN 202821623 U CN202821623 U CN 202821623U
- Authority
- CN
- China
- Prior art keywords
- slide unit
- umbrella
- main body
- radio frequency
- ablation 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a multi-pole umbrella-shaped radiofrequency ablation catheter which comprises a handle, a catheter body, an umbrella-shaped frame, a center pole and a plurality of poles. Compared with the prior art, the multi-pole spiral radiofrequency ablation catheter can simultaneously ablate a plurality of locuses, and therefore work efficiency is greatly improved.
Description
Technical field
This utility model relates to electrosurgery, relates in particular to a kind of for arteriorenal sympathetic nerve is carried out denervated radio frequency ablation catheter.
Background technology
Intractable hypertension, namely use still unmanageable hypertension (sBP 〉=160mmHg) of medicine more than 3 kinds (all having used a diuretic), more common clinically, its paathogenic factor is numerous, pathogenesis is indefinite, medication effect is very poor, and diagnosis and treatment technology are still not mature enough, become one of great difficult problem of hypertension therapeutic.Because kidney as a receptor of nervus centralis, under orthosympathetic effect, can be secreted more feritin and activate the RAAS system, causes that renal blood flow descends, and causes the storage of water sodium to be stayed, and causes at last hypertension; Simultaneously, kidney spreads out of organ as nerve, and sympathetic excitement is communicated to brain conversely, causes bad general reaction.Therefore, intractable hypertension is used the renal denervation treatment.The article that was published on the New England Journal of Medicine in 2009 such as people such as Schlaich, shown through after the renal denervation treatment, the noradrenaline levels decline 50-75% that discharges in the nephridial tissue, the feritin level descends 50% in the blood plasma, the renal blood flow amount increases by 57%, find that simultaneously this treatment has effect to the central nervous system, can significantly improve nervimuscular galvanic reflex.
The renal artery radiofrequency ablation art is a kind of by the electrode catheter intravascular is sent into specific part in the renal artery, discharges radio-frequency current and causes renal artery sympathetic nerve local solidification downright bad, reaches denervated Interventional technology.The radio-frequency current damage range is little, can not cause body harm, so the renal artery radiofrequency ablation art has become the orthosympathetic method of a kind of effective removal renal artery.At present, the one pole radio frequency ablation catheter for renal artery has appearred to implement the renal artery radiofrequency ablation operation.The head of one pole radio frequency ablation catheter for renal artery has single electrode, can carry out melting of single-point location to the renal artery sympathetic nerve, because once-through operation can only be melted a some position, therefore, work efficiency is lower.
Given this, this utility model provides a kind of new multi-electrode radio frequency ablation catheter.
The utility model content
In view of the defects of prior art, of the present utility modelly provide at present a kind of multipole umbrella radio frequency ablation catheter, to realize and to melt a plurality of sites simultaneously.
The technical solution of the utility model is as follows:
A kind of multipole umbrella radio frequency ablation catheter comprises handle, catheter main body, umbrella skeleton, center-pole, a plurality of electrode;
Described umbrella skeleton comprises some arcuation elastic strips, and the first end of described arcuation elastic strip is fixed near center-pole front end or the front end, and the second end of described arcuation elastic strip is fixed on the sliding shoe; Described sliding shoe is slidingly connected to described center-pole; Described electrode is arranged on the described umbrella skeleton;
The inside of described handle and catheter main body is set to hollow, is provided with in described handle and the catheter main body for the electrical connecting element that described electrode is electrically connected to the radio-frequency current generator;
Described center-pole is positioned at the inside of described handle and catheter main body; Described handle comprises the first slide unit and second slide unit of mutual socket, and the rear end of described catheter main body is installed on described the first slide unit, and the rear end of described center-pole is fixedly connected on described the second slide unit; Described the first slide unit, the second slide unit, center-pole are configured to by the mutual slip of described the first slide unit and the second slide unit so that described umbrella skeleton is incorporated into described catheter main body and stretches out described catheter main body;
Described radio frequency ablation catheter also comprises the thermocouple for detecting temperature, links to each other with at least one electrode, also is provided with in described catheter main body and the handle for the wire that transmits the thermocouple signal of telecommunication.
Preferably, the handle main body that described the second slide unit grips for being used for user, described the first slide unit is socketed on the inside of the second slide unit.More preferably, described electrical connecting element comprises many connecting lines and adapter, and an end of described connecting line is electrically connected respectively with described a plurality of electrodes, and the other end is electrically connected with described adapter; Described adapter is installed in described the second slide unit.
Preferably, the handle main body that described the first slide unit grips for being used for user, described the second slide unit is socketed on the inside of the first slide unit.More preferably, described electrical connecting element comprises many connecting lines and adapter, and an end of described connecting line is electrically connected respectively with described a plurality of electrodes, and the other end is electrically connected with described adapter; Described adapter is installed in described the first slide unit.
Preferably, the material of described arcuation elastic strip is super-elastic shape memory alloy.More preferably, described super-elastic shape memory alloy is the NiTi marmem.
Preferably, the number of described electrode is 2-10.
Preferably, the number of described arcuation elastic strip is 2-10.
Compared with prior art, the beneficial effects of the utility model are as follows:
A kind of multipole umbrella radio frequency ablation catheter provided by the utility model can melt a plurality of sites simultaneously, thereby greatly provide work efficiency.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand fully the purpose of this utility model, feature and effect.
Description of drawings
Fig. 1 is the handle arrangement sketch map of the first embodiment of multipole umbrella radio frequency ablation catheter provided by the utility model.
Fig. 2 is the umbrella skeleton structural representation partly of the first embodiment of multipole umbrella radio frequency ablation catheter provided by the utility model.
Fig. 3 is the structural representation of another kind of user mode of umbrella skeleton part of the first embodiment of multipole umbrella radio frequency ablation catheter provided by the utility model.
Fig. 4 is the handle arrangement sketch map of the second embodiment of multipole umbrella radio frequency ablation catheter provided by the utility model.
The specific embodiment
The below is further described this utility model with specific embodiment by reference to the accompanying drawings:
Embodiment 1
Fig. 1-Fig. 3 shows the first embodiment of multipole umbrella radio frequency ablation catheter provided by the utility model.As shown in Figure 1 to Figure 3, the multipole umbrella radio frequency ablation catheter in the present embodiment comprises handle 1, catheter main body 2, umbrella skeleton 3, center-pole 4, electrode 5.
As shown in Figure 1, the inside of handle 1 and catheter main body 2 is set to hollow, and inside is provided with for the electrical connecting element (not shown) that described electrode is electrically connected to the radio-frequency current generator; Center-pole 4 is positioned at the inside of handle 1 and catheter main body 2; Handle 1 comprises the first slide unit 11 and second slide unit 12 of mutual socket, and the rear end of catheter main body 2 is installed on the first slide unit 11, and the rear end of center-pole 4 is fixedly connected on the second slide unit 12.
As shown in Figure 2, umbrella skeleton 3 comprises some arcuation elastic strips, the first end of arcuation elastic strip is fixed near center-pole front end or the front end the fixed block 6, and the second end of arcuation elastic strip is fixed on the sliding shoe 7, and sliding shoe 7 slidably is socketed on the center-pole 4; Electrode 5 is positioned on the umbrella skeleton 3.In this embodiment, the material of arc elastic bar is the NiTi marmem; The number of arcuation elastic strip is two, and an electrode is set on each arcuation elastic strip.Here only for for example, during implementation, can at the arcuation elastic strip electrode be set according to actual needs, as a plurality of electrodes can be set.
In this embodiment, the handle main body that the second slide unit 12 grips for being used for user, the first slide unit 11 is socketed on the inside of the second slide unit 12.When user gripping handle main body and when promoting the first slide unit 11 and moving forward or backward, because the effect of center-pole 4, so that catheter main body 2 can be taken in or stretch out to umbrella skeleton 3.Because an end of the arc elastic bar of umbrella skeleton 3 is for slidably holding, when umbrella skeleton 3 is not subjected to External Force Acting, for example umbrella skeleton 3 stretch out catheter main body 2 and be not subjected to catheter main body 2 tube wall do the time spent, umbrella skeleton 3 is in the swelling state of nature, as shown in Figure 3.Under this state, the electrode 5 on the umbrella skeleton 3 can be near the site that needs in the blood vessel to melt.When umbrella skeleton 3 income catheter main body 2, the slidably end of the arc elastic bar of umbrella skeleton 3 slides along center-pole 4, so that the axial length of whole umbrella skeleton 3 is elongated, whole umbrella skeleton 3 is in by the contraction state of the tube wall of catheter main body 2 compression, as shown in Figure 2.Under this state, just can control radio frequency ablation catheter catheter main body 2 is moved in blood vessel.
In this specific embodiment, described radio-frequency (RF) ablation pipe also comprises the thermocouple (not shown), links to each other with at least one electrode, is used for detecting temperature.Also be provided with in handle 1 and the catheter main body 2 for the wire that transmits the thermocouple signal of telecommunication.
Need to prove that Fig. 1 to Fig. 3 only plays the effect of signal, the shape and size of the described multipole umbrella radio frequency ablation catheter of present embodiment do not limited.
Fig. 4 shows the second embodiment of multipole umbrella radio frequency ablation catheter provided by the utility model.As shown in Figure 4, multipole umbrella radio frequency ablation catheter and embodiment 1 difference in this specific embodiment are that the first slide unit 11 is that the second slide unit 12 is socketed on the inside of the first slide unit 11 for the handle main body of user gripping.In this embodiment, when user gripping handle main body and when promoting the second slide unit 12 and moving forward or backward, because the effect of center-pole 4, so that catheter main body 2 can be taken in or stretch out to umbrella skeleton 3.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all those skilled in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (9)
1. a multipole umbrella radio frequency ablation catheter is characterized in that, comprises handle, catheter main body, umbrella skeleton, center-pole, a plurality of electrode;
Described umbrella skeleton comprises some arcuation elastic strips, and the first end of described arcuation elastic strip is fixed near described center-pole front end or the front end, and the second end of described arcuation elastic strip is fixed on the sliding shoe; Described sliding shoe is slidingly connected to described center-pole; Described electrode is arranged on the described umbrella skeleton;
The inside of described handle and catheter main body is set to hollow, is provided with in described handle and the catheter main body for the electrical connecting element that described electrode is electrically connected to the radio-frequency current generator;
Described center-pole is positioned at the inside of described handle and catheter main body; Described handle comprises the first slide unit and second slide unit of mutual socket, and the rear end of described catheter main body is installed on described the first slide unit, and the rear end of described center-pole is fixedly connected on described the second slide unit; Described the first slide unit, the second slide unit, center-pole are configured to by the mutual slip of described the first slide unit and the second slide unit so that described umbrella skeleton is incorporated into described catheter main body and stretches out described catheter main body;
Described radio frequency ablation catheter also comprises the thermocouple for detecting temperature, links to each other with at least one electrode, also is provided with in described catheter main body and the handle for the wire that transmits the thermocouple signal of telecommunication.
2. multipole umbrella radio frequency ablation catheter according to claim 1 is characterized in that, the handle main body that described the second slide unit grips for being used for user, and described the first slide unit is socketed on the inside of the second slide unit.
3. multipole umbrella radio frequency ablation catheter according to claim 2, it is characterized in that, described electrical connecting element comprises many connecting lines and adapter, and an end of described connecting line is electrically connected respectively with described a plurality of electrodes, and the other end is electrically connected with described adapter; Described adapter is installed in described the second slide unit.
4. multipole umbrella radio frequency ablation catheter according to claim 1 is characterized in that, the handle main body that described the first slide unit grips for being used for user, and described the second slide unit is socketed on the inside of the first slide unit.
5. multipole umbrella radio frequency ablation catheter according to claim 4, it is characterized in that, described electrical connecting element comprises many connecting lines and adapter, and an end of described connecting line is electrically connected respectively with described a plurality of electrodes, and the other end is electrically connected with described adapter; Described adapter is installed in described the first slide unit.
6. multipole umbrella radio frequency ablation catheter according to claim 1 is characterized in that, the material of described arcuation elastic strip is super-elastic shape memory alloy.
7. multipole umbrella radio frequency ablation catheter according to claim 6 is characterized in that, described super-elastic shape memory alloy is the NiTi marmem.
8. multipole umbrella radio frequency ablation catheter according to claim 1 is characterized in that, the number of described electrode is 2-10.
9. multipole umbrella radio frequency ablation catheter according to claim 1 is characterized in that, the number of described arcuation elastic strip is 2-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533059 CN202821623U (en) | 2012-10-17 | 2012-10-17 | Multi-pole umbrella-shaped radiofrequency ablation catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533059 CN202821623U (en) | 2012-10-17 | 2012-10-17 | Multi-pole umbrella-shaped radiofrequency ablation catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202821623U true CN202821623U (en) | 2013-03-27 |
Family
ID=47933438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220533059 Expired - Lifetime CN202821623U (en) | 2012-10-17 | 2012-10-17 | Multi-pole umbrella-shaped radiofrequency ablation catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202821623U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103519888A (en) * | 2013-10-30 | 2014-01-22 | 上海魅丽纬叶医疗科技有限公司 | Radiofrequency electrode with temperature measurement function and impedance measurement function and radiofrequency ablatograph |
| CN103735307A (en) * | 2014-01-14 | 2014-04-23 | 沈诚亮 | Bronchial thermoplasty catheter |
| 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 |
-
2012
- 2012-10-17 CN CN 201220533059 patent/CN202821623U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103519888A (en) * | 2013-10-30 | 2014-01-22 | 上海魅丽纬叶医疗科技有限公司 | Radiofrequency electrode with temperature measurement function and impedance measurement function and radiofrequency ablatograph |
| CN103519888B (en) * | 2013-10-30 | 2016-02-10 | 上海魅丽纬叶医疗科技有限公司 | Have radio-frequency electrode and the radiofrequency melting instrument of temp sensing function and survey impedance function concurrently |
| CN103735307A (en) * | 2014-01-14 | 2014-04-23 | 沈诚亮 | Bronchial thermoplasty catheter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102438538B (en) | Ablation catheter with balloon, and ablation catheter system with balloon | |
| CN202821623U (en) | Multi-pole umbrella-shaped radiofrequency ablation catheter | |
| CN101647725B (en) | Rapid linear radio-frequency ablation electrode | |
| CN103118619A (en) | RF electrodes on multiple flexible wires for renal nerve ablation | |
| CN102920506A (en) | Multipolar umbrella-shaped radio frequency ablation catheter | |
| CN103750898A (en) | Intraluminal ablation catheter | |
| CN102940525A (en) | Multi-pole helicoidal radiofrequency ablation conduit | |
| CN113397691A (en) | Pulse and radio frequency ablation integrated machine and using method thereof | |
| CN100512773C (en) | Orbital radio frequency melting catheter | |
| CN202821624U (en) | Multi-pole spiral radiofrequency ablation catheter | |
| CN103169537A (en) | Multi-electrode net-shaped radio frequency ablation catheter | |
| CN103654948B (en) | A kind of two pole band Pressure wire radio frequency ablation catheter for renal arteries | |
| CN201642315U (en) | Radio frequency ablation electrode | |
| CN102688091B (en) | Renal artery radio frequency ablation catheter | |
| CN212415889U (en) | Medical catheter | |
| CN202933013U (en) | Balloon dilatation type multi-electrode radiofrequency ablation catheter | |
| CN208435787U (en) | Double groups of sub- needle RF ablation devices | |
| CN102940524B (en) | A kind of balloon dilation-type multi-electrode radio-frequency ablation catheter | |
| CN203369959U (en) | Multi-electrode hypertension intravascular treatment catheter capable of adjusting impedance | |
| CN203089367U (en) | Multiple-electrode netlike radiofrequency ablation catheter | |
| CN202113164U (en) | Bipolar electrotome | |
| CN102940526A (en) | Radiofrequency ablation catheter with push-and-pull control head electrode | |
| CN203647465U (en) | Radiofrequency ablation electrode | |
| EP3744275B1 (en) | Annular mapping catheter | |
| CN106901831A (en) | The arteria renalis stimulates ablating electrode conduit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sheng Weiwen Inventor after: Wang Guohui Inventor after: Qin Jie Inventor after: Wang Li Inventor after: Zhang Kun Inventor before: Sheng Weiwen Inventor before: Wang Guohui Inventor before: Qin Jie Inventor before: Wang Li |
|
| CB03 | Change of inventor or designer information | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |