CN203089370U - Multipoint radio frequency ablation electrode for renal sympathetic nerve removing surgery - Google Patents
Multipoint radio frequency ablation electrode for renal sympathetic nerve removing surgery Download PDFInfo
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- CN203089370U CN203089370U CN 201320003697 CN201320003697U CN203089370U CN 203089370 U CN203089370 U CN 203089370U CN 201320003697 CN201320003697 CN 201320003697 CN 201320003697 U CN201320003697 U CN 201320003697U CN 203089370 U CN203089370 U CN 203089370U
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- electrode
- tip electrode
- frequency ablation
- sympathetic nerve
- multiple spot
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Abstract
The utility model provides a multipoint radio frequency ablation electrode for a renal sympathetic nerve removing surgery. The multipoint radio frequency ablation electrode comprises an annular tube, an inner tube and a hand shank. The annular tube is arranged on the inner tube in a sleeved mode, and the hand shank is connected with the tail portion of the inner tube. The inner tube comprises head electrodes, an inner tube protective tube and an inner tube framework. The number of the head electrodes is N, wherein the N is larger than or equal to 2. Each head electrode comprises an ablation electrode, a head electrode protective tube and a head electrode elastic framework. One-time intervention can be achieved due to the fact that a plurality of head electrodes are arranged, the purpose of simultaneous or point-to-point ablation is achieved, surgical time and X-ray exposure time can be shortened, and surgical safety is further improved. The head electrodes are arranged in a staggered mode and then are distributed in a spiral mode, the ablation cover area of the head electrodes along the axial direction is enlarged, and ablation efficiency is improved. The effects that the head electrodes stretch out of a guiding hole formed in the annular tube and retract from the guiding hole in the annular tube are achieved through the relative movement of the inner tube and the annular tube. The head electrodes can reach an adherent wall and can adjust the strength of the adherent wall when the head electrodes stretch out of the guiding hole, and the head electrodes can be pulled out timely when the head electrodes retract.
Description
Technical field
This utility model relates to active medical instruments field, relates in particular to a kind of kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes.
Background technology
Along with the raising of living standard, the disease of harm humans life, life emerges in an endless stream.In this rhythm of life age unusually fast, hyperpietic's number is in year by year rising, and its rate of climb is very fast.Hypertension is meant that under quiescent condition systolic arterial pressure and/or diastolic pressure increase.Hypertension be a kind of be feature with the arterial pressure rising, can be functional or the systemic disease of organic change with heart, blood vessel, brain and kidney and other organs.In make the life better mode and comprise the measure of at least 3 kinds of antihypertensives treatment of the reasonably combined capacity of diuretic of application, in the time of still systolic pressure and diastolic pressure can not being controlled at target level, be called refractory hypertension (or intractable hypertension).Clinical proof can not be come the better controlled blood pressure to these by medicine by the patient that intractable hypertension torments.
By discovering, the sympathetic nerve overacfivity on the renal artery is to cause hypertensive key factor, the influence of sympathetic nervous system to blood pressure that a large amount of zooperies is verified.Clinical research finds that also orthosympathetic excitement degree and patient's blood pressure level is proportionate.Before the modern medicines therapy was come out, sympathetic nerve was removed art and just is regarded as treating hypertensive a kind of method.By this, can reach the purpose of controlling blood pressure by blocking part renal artery sympathetic nerve.Though obtaining satisfied curative effect aspect the reduction patient blood pressure, long term follow-up lacks to be found: the mortality rate and the postoperative sickness rate of simple sympathectomy are all higher, and with serious long-term complications, even produce serious postural hypotension.
The electrode catheter of usefulness has only an electrode clinically at present, the doctor must descend the operation of any once more after finishing the melting an of point, for example every side all will melt 4 ~ 6 points in going renal artery sympathetic nerve art, the doctor must operate 8 ~ 12 times so, the open-assembly time of X ray is very long, and operating time is long, and risk is also bigger.
The utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is, at above-mentioned defective, reaches to improve in the process of going kidney sympathetic nerve art and melts efficient, shortens operating time, reduces operation risk and the purpose of the side effect that brings to the patient.
(2) technical scheme
For addressing the above problem, this utility model provides a kind of kidney sympathetic nerve art multiple spot radio-frequency ablation electrode method of going, and described kidney sympathetic nerve art specifically comprises with the multiple spot radio-frequency ablation electrode:
In described pipe 7 comprise tip electrode 2, in manage and protect 3, interior cannon born frame 4, the number of wherein said tip electrode 2 is N, and N 〉=2;
Described tip electrode 2 comprises ablating electrode 21, tip electrode pillar 22 and tip electrode elastic skeleton 23.
Preferably, a described N tip electrode 2 axially staggers along described interior pipe 7 and arranges, and shape distributes in the shape of a spiral.
Preferably, the head of described ablating electrode 21 is circular-arc, the inner cavity that forms, and the afterbody of described ablating electrode 21 is bonded in the front end inside of tip electrode pillar 22.
Preferably, described tip electrode pillar 22 is sleeved on the described tip electrode elastic skeleton 23.
Preferably, the front end of described tip electrode elastic skeleton 23 is connected the afterbody of described ablating electrode 21, fixedlys connected with described interior cannon born frame 4 in the rear end.
Preferably, described tip electrode 2 also comprises temperature sensor 24, and described temperature sensor 24 is fixed in the cavity of described ablating electrode 21.
Preferably, described in pipe 7 when travelling forward with respect to described sleeve pipe 1, described tip electrode 2 reaches outside the described sleeve pipe 1; When pipe 7 moved backward with respect to described sleeve pipe 1 in described, described tip electrode 2 was retracted in the described sleeve pipe 1.
Preferably, a described N tip electrode 2 is embedded into respectively in the pilot hole 6 of described sleeve pipe 1.
Preferably, the number of described pilot hole 6 is identical with the number of described tip electrode 2, and described pilot hole 6 axially staggers along described sleeve pipe 1 and arranges, and distributing position is corresponding with the distributing position of described tip electrode 2 respectively, and also shape distributes in the shape of a spiral.
Preferably, described pilot hole 6 extends to the inside of described sleeve pipe 1.
(3) beneficial effect
The utility model proposes a kind of kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes, by the disposable intervention of a plurality of tip electrodes energy is set, reach simultaneously or purpose that pointwise is melted, and then shorten operating time and X ray open-assembly time, operation safety also further improves.A plurality of tip electrodes cloth that begins to rehearse that interlaces, and spiral distribution enlarge its area coverage that melts vertically, improve the efficient that melts.Interior pipe and telescopic relative motion realize tip electrode from the effect that the pilot hole on the sleeve pipe stretches out and shrinks, and make the effect that can reach adherent when tip electrode stretches out and regulate adherent dynamics to realize withdrawing from timely when tip electrode shrinks.
Description of drawings
Fig. 1 removes the structural representation of kidney sympathetic nerve art with the multiple spot radio-frequency ablation electrode for this utility model is a kind of;
Fig. 2 removes the local enlarged diagram of kidney sympathetic nerve art with tip electrode in the multiple spot radio-frequency ablation electrode for this utility model is a kind of;
Sketch map when Fig. 3 goes kidney sympathetic nerve art with multiple spot radio-frequency ablation electrode duty for this utility model is a kind of;
Fig. 4 goes kidney sympathetic nerve art with the tip electrode in the multiple spot radio-frequency ablation electrode and the position view of pilot hole for this utility model is a kind of.
Wherein: 1, sleeve pipe, 2, tip electrode, 3, in manage and protect pipe, 4, interior cannon born frame, 5, handle, 6, pilot hole, 7, interior pipe, 21, ablating electrode, 22, the tip electrode pillar, 23, the tip electrode elastic skeleton, 24, temperature sensor.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used to illustrate this utility model, but are not used for limiting scope of the present utility model.
A kind of kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes is provided among the embodiment of the present utility model, and its structural representation specifically comprises as shown in Figure 1:
On the pipe 7, handle 5 was connected with the afterbody of interior pipe 7 in sleeve pipe 1, interior pipe 7 and handle 5, sleeve pipe 1 were sleeved on.
Wherein, interior pipe 7 comprise tip electrode 2, in manage and protect 3, interior cannon born frame 4, the number of tip electrode 2 is N, and N 〉=2, N=4 describes with the multiple spot radio-frequency ablation electrode going kidney sympathetic nerve art in the present embodiment.
The partial approach sketch map of tip electrode 2 as shown in Figure 2, tip electrode 2 comprises ablating electrode 21, tip electrode pillar 22 and tip electrode elastic skeleton 23.
Ablating electrode 21 is preferably with the very high platinum material preparation of purity, and its head is circular-arc, has reached the effectiveness of protection tunica intima.The ablating electrode 21 inner cavitys that form, the afterbody of ablating electrode 21 is bonded in the front end inside of tip electrode pillar 22.
The front end of tip electrode elastic skeleton 23 is connected the afterbody of ablating electrode 21, fixedlys connected with interior cannon born frame 4 in the rear end.In manage and protect in 3 suits on the cannon born frame 4, to reach the purpose of cannon born frame in the protection.In manage and protect 3 and preferably make with the extraordinary plastic material of biocompatibility.Interior cannon born frame 4 is preferably used the medical stainless steel pipe, to reach the purpose of elasticity and support force.Tip electrode 2, interior cannon born frame 4 and in manage and protect the 3 interior pipes 7 that formed an integral body.
Manage on 7 in sleeve pipe 1 is sleeved on, and between interior pipe 7 and the sleeve pipe 1 slit is arranged, can carry out relative motion, as shown in Figure 3.In pipe 7 when travelling forward with respect to sleeve pipe 1, tip electrode 2 reaches outside the sleeve pipe 1; In pipe 7 when moving backward with respect to sleeve pipe 1, tip electrode 2 is retracted in the sleeve pipe 1.
In sum, use and to remove kidney sympathetic nerve art multiple spot radio-frequency ablation electrode in the foregoing description, the electrode of alternating current by the conduit head end is transmitted in the renal artery tissue, make it produce heat, elevated temperature (generally being elevated to about 65 ℃), the sympathetic nerve on renal artery top is at high temperature lost activity, reach the orthosympathetic purpose of blocking part renal artery.A plurality of tip electrodes are set can disposable intervention, reaches simultaneously or purpose that pointwise is melted, and then shortens operating time and X ray open-assembly time, and operation safety also further improves.Interior pipe and telescopic relative motion realize tip electrode from the effect that the pilot hole on the sleeve pipe stretches out and shrinks, and make the effect that can reach adherent when tip electrode stretches out and regulate adherent dynamics to realize withdrawing from timely when tip electrode shrinks.A plurality of tip electrodes cloth that begins to rehearse that interlaces, and spiral distribution enlarge its area coverage that melts vertically, improve the efficient that melts, thereby effective controlling blood pressure makes the patient by the uncontrollable blood pressure of common drug regain healthy body constitution.
It should be noted that at last; above embodiment only is used to the technical solution of the utility model is described and is not to restriction of the present utility model; although this utility model is had been described in detail with reference to preferred embodiment; those skilled in the art are to be understood that; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification, so all technical schemes that are equal to also belong to category of the present utility model, scope of patent protection of the present utility model should be defined by the claims.
Claims (10)
1. one kind is removed kidney sympathetic nerve art multiple spot radio-frequency ablation electrode, it is characterized in that, described multiple spot radio-frequency ablation electrode comprises: sleeve pipe (1), interior pipe (7) and handle (5), described sleeve pipe (1) is sleeved on the described interior pipe (7), and described handle (5) is connected with the afterbody of described interior pipe (7);
Described in the pipe (7) comprise tip electrode (2), in manage and protect (3), interior cannon born frame (4), the number of wherein said tip electrode (2) is N, and N 〉=2;
Described tip electrode (2) comprises ablating electrode (21), tip electrode pillar (22) and tip electrode elastic skeleton (23).
2. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 1 is characterized in that, a described N tip electrode (2) axially staggers along described interior pipe (7) and arranges, and shape distributes in the shape of a spiral.
3. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 1, it is characterized in that, the head of described ablating electrode (21) is circular-arc, the inner cavity that forms, and the afterbody of described ablating electrode (21) is bonded in the front end inside of tip electrode pillar (22).
4. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 1 is characterized in that described tip electrode pillar (22) is sleeved on the described tip electrode elastic skeleton (23).
5. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 1 is characterized in that the front end of described tip electrode elastic skeleton (23) is connected the afterbody of described ablating electrode (21), fixedlys connected with described interior cannon born frame (4) in the rear end.
6. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 1 is characterized in that described tip electrode (2) also comprises temperature sensor (24), and described temperature sensor (24) is fixed in the cavity of described ablating electrode (21).
7. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 1 is characterized in that, when travelling forward, described tip electrode (2) reaches outside the described sleeve pipe (1) described interior pipe (7) with respect to described sleeve pipe (1); When moving backward, described tip electrode (2) is retracted in the described sleeve pipe (1) pipe (7) with respect to described sleeve pipe (1) in described.
8. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 1 is characterized in that a described N tip electrode (2) is embedded into respectively in the pilot hole (6) of described sleeve pipe (1).
9. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 8, it is characterized in that, the number of described pilot hole (6) is identical with the number of described tip electrode (2), described pilot hole (6) axially staggers along described sleeve pipe (1) and arranges, and distributing position is corresponding with the distributing position of described tip electrode (2) respectively, and also shape distributes in the shape of a spiral.
10. the kidney sympathetic nerve art multiple spot radio-frequency ablation electrode that goes as claimed in claim 8 is characterized in that, described pilot hole (6) extends to the inside of described sleeve pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003697 CN203089370U (en) | 2013-01-05 | 2013-01-05 | Multipoint radio frequency ablation electrode for renal sympathetic nerve removing surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003697 CN203089370U (en) | 2013-01-05 | 2013-01-05 | Multipoint radio frequency ablation electrode for renal sympathetic nerve removing surgery |
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| Publication Number | Publication Date |
|---|---|
| CN203089370U true CN203089370U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320003697 Expired - Lifetime CN203089370U (en) | 2013-01-05 | 2013-01-05 | Multipoint radio frequency ablation electrode for renal sympathetic nerve removing surgery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023092851A1 (en) * | 2021-11-23 | 2023-06-01 | 苏州润迈德医疗科技有限公司 | Radio frequency ablation catheter device |
-
2013
- 2013-01-05 CN CN 201320003697 patent/CN203089370U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023092851A1 (en) * | 2021-11-23 | 2023-06-01 | 苏州润迈德医疗科技有限公司 | Radio frequency ablation catheter device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
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| CX01 | Expiry of patent term |