CN203988051U - A kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation - Google Patents
A kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation Download PDFInfo
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- CN203988051U CN203988051U CN201420369428.9U CN201420369428U CN203988051U CN 203988051 U CN203988051 U CN 203988051U CN 201420369428 U CN201420369428 U CN 201420369428U CN 203988051 U CN203988051 U CN 203988051U
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Abstract
This utility model relates to a kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation, comprise guiding catheter and stimulating electrode, described guiding catheter is in-built stimulating electrode, described stimulating electrode one end is mapping end, the other end connects mapping signal handling equipment, described mapping end is made with memory metal, when described mapping end packs guiding catheter into, the shape of described mapping end and guiding catheter shape match, described when stating mapping end and stretching out guiding catheter, the shape of described mapping end discharges twist automatically, and on spiral type medial wall with electrode slice, described spiral radius of curvature and blood vessel to be measured match, described spiral type mapping end is close to the tube wall of blood vessel to be measured in the time of mapping.The utility model has the advantage of, described spiral type mapping end is close to vascular wall to be measured in the time of mapping, can guarantee mapping catheter simultaneously or continuous carry out omnibearing electricity irritation at certain vascular cross-section, and can accurately locate stimulation target spot.
Description
Technical field
This utility model belongs to renal arteriography guiding catheter technical field, particularly relates to a kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation.
Background technology
Percutaneous renal artery sympathetic nerve ablation is a kind of new interventional therapy means for the treatment of intractable hypertension and has obtained remarkable clinical efficacy at present.RDN art adopts tradition to melt theory at present, adopts particular radio-frequency instrument, and ablation method is mainly: adopt spiral ablation path, pointwise is melted, and oneself withdraws conduit patient, melts scheme and is mainly: temperature control (55 degree), 8w, 120s.Melt 4-6 point, each point is at a distance of 0.5cm.For example, but still there is certain defect in the current means that melt: 1. need operator oneself to withdraw conduit, cannot accurately locate, different patients have bigger difference to the selection of ablation points position; 2. cannot judge the effectiveness at once that renal artery melts.Research is found, renal artery sympathetic nerve is carried out to the stimulation of different frequency, can produce different physiological reactions, wherein, low frequency stimulating (0.5-1 hertz) can cause the release of feritin, intermediate frequency stimulates (1-2 hertz) can cause water sodium to store up the generation of staying, the roughly minimizing of renal blood flow of high frequency stimulation (more than 2 hertz).Melt by the accurate mapping of electricity irritation the development trend that target spot is following RDN art.Current, RDN art lacks special stimulating electrode conduit, and existing stimulating catheter also cannot carry out omnibearing stimulation and accurately locate certain vascular cross-section.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation, spiral type mapping end is close to vascular wall to be measured in the time of mapping, stimulating electrode can be guaranteed simultaneously or continuous carry out omnibearing electricity irritation at certain vascular cross-section, and stimulation target spot can be accurately located.
This utility model solves the technical scheme that its technical problem adopts: the electric stimulation electrode conduit that a kind of percutaneous renal artery sympathetic nerve ablation is provided, comprise guiding catheter and stimulating electrode, described guiding catheter is in-built stimulating electrode, described stimulating electrode one end is mapping end, the other end connects mapping signal handling equipment, described mapping end is made with memory metal, when described mapping end packs guiding catheter into, the shape of described mapping end and guiding catheter shape match, described when stating mapping end and stretching out guiding catheter, the shape of described mapping end discharges twist automatically, and on spiral type medial wall with electrode slice, described spiral radius of curvature and blood vessel to be measured match, described spiral type mapping end is close to the tube wall of blood vessel to be measured in the time of mapping.
On described mapping end with 4 to 8 pairs of mapping electrode slices.
The long 0.5-2cm of described mapping end.
The long 60-120cm of described guiding catheter.
Described guiding catheter internal diameter is 3F to 4F.
It is writing a Chinese character in simplified form of English French that described F also writes Fr, is the caliber unit of catheter.
Beneficial effect
The utility model has the advantage of, described spiral type mapping end is close to vascular wall to be measured in the time of mapping, can guarantee mapping catheter simultaneously or continuous carry out omnibearing electricity irritation at certain vascular cross-section, and can accurately locate stimulation target spot.
Brief description of the drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is the state diagram that this utility model stimulating electrode is positioned at guiding catheter.
Detailed description of the invention
Below in conjunction with specific embodiment, further set forth this utility model.Should be understood that these embodiment are only not used in restriction scope of the present utility model for this utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications this utility model after having read the content of this utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
A kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation as shown in Figure 1, comprise guiding catheter 1 and stimulating electrode 2, described guiding catheter 1 is in-built stimulating electrode 2, described stimulating electrode 2 one end are mapping end 3, the other end connects mapping signal handling equipment, described mapping end 3 use memory metals are made, when described mapping end 3 packs guiding catheter 1 into, the shape of described mapping end 3 and guiding catheter 1 shape match, described when stating mapping end 3 and stretching out guiding catheter 1, the shape of described mapping end 3 discharges twist automatically, and on spiral type medial wall with electrode slice 4, described spiral radius of curvature and blood vessel to be measured match, described spiral type mapping end is close to the tube wall of blood vessel to be measured in the time of mapping.
On described mapping end 3 with 4 to 8 pairs of mapping electrode slices 4.
The long 0.5-2cm of described mapping end 3.
The long 60-120cm of described guiding catheter 1.
Described guiding catheter 1 internal diameter is 3F to 4F.
It is writing a Chinese character in simplified form of English French that described F also writes Fr, is the caliber unit of catheter.
In actual use, stimulating electrode of the present utility model is put into the guiding catheter of 3F-5F, make it in straight configuration, guiding catheter is sent in renal artery, withdrawn guiding catheter, stimulating electrode discharges automatically, mapping end stretches out and bends to spiral type, touch blood vessel to be measured in renal artery completely, connect stimulation instrument, start to carry out electricity irritation mapping.
Claims (5)
1. the electric stimulation electrode conduit of a percutaneous renal artery sympathetic nerve ablation, comprise guiding catheter (1) and stimulating electrode (2), it is characterized in that, described guiding catheter (1) is in-built stimulating electrode (2), described stimulating electrode (2) one end is mapping end (3), the other end connects mapping signal handling equipment, described mapping end (3) is made with memory metal, when described mapping end (3) packs guiding catheter (1) into, the shape of described mapping end (3) and guiding catheter (1) shape match, described when stating mapping end (3) and stretching out guiding catheter (1), the shape of described mapping end (3) discharges twist automatically, and on spiral type medial wall with electrode slice (4), described spiral radius of curvature and blood vessel to be measured match, described spiral type mapping end is close to the tube wall of blood vessel to be measured in the time of mapping.
2. the electric stimulation electrode conduit of a kind of percutaneous renal artery sympathetic nerve ablation according to claim 1, is characterized in that, described mapping end (3) is upper with 4 to 8 pairs of mapping electrode slices (4).
3. the electric stimulation electrode conduit of a kind of percutaneous renal artery sympathetic nerve ablation according to claim 1, is characterized in that, the long 0.5-2cm of described mapping end (3).
4. the electric stimulation electrode conduit of a kind of percutaneous renal artery sympathetic nerve ablation according to claim 1, is characterized in that, the long 60-120cm of described guiding catheter (1).
5. the electric stimulation electrode conduit of a kind of percutaneous renal artery sympathetic nerve ablation according to claim 1, is characterized in that, described guiding catheter (1) internal diameter is 3F to 4F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369428.9U CN203988051U (en) | 2014-07-04 | 2014-07-04 | A kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369428.9U CN203988051U (en) | 2014-07-04 | 2014-07-04 | A kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation |
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| Publication Number | Publication Date |
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| CN203988051U true CN203988051U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420369428.9U Active CN203988051U (en) | 2014-07-04 | 2014-07-04 | A kind of electric stimulation electrode conduit of percutaneous renal artery sympathetic nerve ablation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127183A (en) * | 2014-07-04 | 2014-11-05 | 刘宗军 | Electric simulating electrode catheter for percutaneous renal artery sympathetic nerve coblation |
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2014
- 2014-07-04 CN CN201420369428.9U patent/CN203988051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127183A (en) * | 2014-07-04 | 2014-11-05 | 刘宗军 | Electric simulating electrode catheter for percutaneous renal artery sympathetic nerve coblation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |