CN103830002A - Controllable bent and spiral irrigation catheter - Google Patents
Controllable bent and spiral irrigation catheter Download PDFInfo
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- CN103830002A CN103830002A CN201210483252.5A CN201210483252A CN103830002A CN 103830002 A CN103830002 A CN 103830002A CN 201210483252 A CN201210483252 A CN 201210483252A CN 103830002 A CN103830002 A CN 103830002A
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- spiral
- ablation catheter
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Abstract
The invention discloses a medical catheter device, and provides a controllable bent and spiral irrigation catheter which comprises a handle, a control component arranged in the handle, a guide tube and a spiral ablation catheter body. The guide tube and the spiral ablation catheter body are connected with the control component, the spiral ablation catheter body is movably arranged in a cavity of the guide tube, a first traction fiber is arranged in the guide tube, a second traction fiber is fixedly arranged in the spiral ablation catheter body, and an electrode is arranged in the spiral ablation catheter body. The control component comprises a first control button, a second control button and a third control button, the far end of the spiral ablation catheter body is spiral, and one or more electrodes are arranged on the spiral section of the spiral ablation catheter body. The tail of the spiral far end of the spiral ablation catheter body is a straight section, and one or more electrodes are arranged on the straight section. The electrode or the catheter body is provided with one or more holes for spraying fluid. The controllable bent and spiral irrigation catheter can control the ablation catheter body at the far end to quickly reach an assigned tissue part for diagnosis and treatment, fluid is sprayed in the treating process, complications are prevented, and after treatment, if the treatment is complete is judged through the catheter, and the curing effect is effectively improved.
Description
Technical field
The present invention relates to medical catheter device, especially a kind of medical controllable bending ablation catheter.
Background technology
Electrophysiologicalcatheter catheter, be widely used at present in medical practice, mainly through subcutaneous puncture, conduit is delivered to different lesions positions, pathogenic site is carried out to electrophysiologic study, radio-frequency (RF) ablation, thereby reach the object to lesion tissue diagnosis and treatment, electrophysiologicalcatheter catheter generally adopts single-stage to melt at present, if lesion tissue area is large or distance is long, need repeatedly ablation, need to expend a large amount of time, even not thorough because of melting, can not reach good therapeutic effect.
In the time carrying out ablation, in order to reach darker depth of ablation, can use clinically higher ablation energy, tend to like this cause lesion tissue hot-spot to cause multiple complications, even cause vasoconstriction, thereby affected effectiveness and the safety of operation.
In order to address this problem, conduit of the present invention provides a solution that multi-electrode melts, and realizes that multi-electrode melts simultaneously or multi-electrode selectivity melts, and can realize fast diagnosis and treatment, and can verify therapeutic effect, confirm whether treatment is thorough.And in radiofrequency ablation procedures, adopt perfusion-type radiofrequency ablation catheter, spray coolant, near electrode, is reduced to the surface temperature of lesion tissue, prevent the generation of complication.
Summary of the invention
The object of the invention is to overcome existing above-mentioned deficiency in prior art, a kind of controllable bending spiral perfusion cannula be provided, in order to realize foregoing invention object, the invention provides following technical scheme:
The object of the invention is to overcome existing above-mentioned deficiency in prior art, a kind of controllable bending spiral perfusion cannula is provided.Controllable bending spiral perfusion cannula provided by the invention, can accurately arrive lesions position, and operating element is simple to operation; In therapeutic process, liquid coolant be can spray, thrombosis or incrustation avoided forming.Meanwhile, the electrode of spiral perfusion cannula far-end straight section can be provided stimulation, and can verify melt whether thorough.
A kind of controllable bending spiral perfusion cannula, comprises handle, is arranged on operating element, guiding tube and spiral ablation catheter in handle; Guiding tube is connected with operating element with spiral ablation catheter, the activity of spiral ablation catheter be arranged on guiding tube intracavity, in guiding tube, be provided with the first traction fiber, in spiral ablation catheter, be provided with the second traction fiber, described spiral ablation catheter is provided with electrode; It is characterized in that: described operating element comprises,
Control the first control knob of guiding tube far-end bending,
Control the rotation of spiral ablation catheter and/or flexible conduit control knob,
The far-end of described spiral ablation catheter in the shape of a spiral, is provided with one or more electrodes on spiral section; The hole of one or more spraying liquids is set on described electrode or pipe shaft.
Preferably, described conduit control knob comprises the second control knob and the 3rd control knob, and the second control knob is fixedly connected with described spiral ablation catheter, and is slidably connected with handle; The 3rd control knob is coaxially fixedly connected with described spiral ablation catheter, and is rotationally connected with handle.And second and the 3rd controls and turn round and also can merge into a function key, function key can push-and-pull, and function key tail end can rotate.
Preferably, the first control knob rotates can strain the first traction fiber, the first traction fiber traction guiding tube distal deflection.The second control knob is fixedly connected with spiral ablation catheter, and the second control knob and handle are slidably connected, and while sliding the second control knob, the second control knob advances spiral ablation catheter, and the far-end of spiral ablation catheter stretches out in the cavity of guiding tube;
In the shape of a spiral, the size of spiral helicine circle can be fixing to the far-end of described spiral ablation catheter, or adjustable.The end of the far-end spiral part of described spiral ablation catheter is straight section part.
The hole of one or more spraying liquids is set on described electrode or pipe shaft.Liquid coolant arrives lesion tissue surface by the hole on electrode or pipe shaft by spray coolant, for reducing lesion tissue surface temperature, prevents the generation of complication.
The far-end of described spiral ablation catheter is provided with one or more electrodes.The electrode pair lesion tissue being arranged on spiral part plays ablation; The electrode that is arranged on the straight section part of spiral part end can or be provided stimulation for diagnosis, for verifying therapeutic effect.
Preferably, described electrode is ring electrode or wire-winding electrode.
Preferably, described guiding tube has at least one chamber.
compared with prior art, beneficial effect of the present invention:
1, controllable bending perfusion cannula of the present invention is used in therapeutic process and sprays liquid coolant, avoids forming thrombosis or incrustation, and other complication.
2, the electrode of the straight section of the end of controllable bending spiral perfusion cannula far-end spiral part of the present invention for diagnosis or provide stimulate, can verify melt whether thorough.
Accompanying drawing explanation:
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is the schematic diagram under different conditions embodiment illustrated in fig. 1.
Fig. 3 is the schematic diagram under different conditions embodiment illustrated in fig. 1.
Fig. 4 is the schematic diagram under different conditions embodiment illustrated in fig. 1.
Fig. 5-7th, the schematic diagram of another specific embodiment of the present invention under different conditions.
Fig. 8 is electrode on distal end of catheter or the partial schematic diagram of pipe shaft.
Fig. 9 is the partial schematic diagram of electrode on distal end of catheter or the different embodiments of pipe shaft.
Figure 10 is the partial schematic diagram of electrode on distal end of catheter or the different embodiments of pipe shaft.
The specific embodiment
Below in conjunction with test example and the specific embodiment, the present invention is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on content of the present invention all belong to scope of the present invention.
As shown in Figure 1, a kind of controllable bending spiral perfusion cannula, comprises handle 1, is arranged on operating element, guiding tube 5 and spiral ablation catheter 6 in handle;
Described operating element comprises the first control knob 2, the second control knob 3 and the 3rd control knob 4;
The first control knob is connected with described the first traction fiber, and the first control knob and handle are rotationally connected;
The second control knob is fixedly connected with described spiral ablation catheter 6, and the second control knob and handle are slidably connected;
The 3rd control knob is coaxially fixedly connected with described the second traction fiber, and the 3rd control knob and handle are rotationally connected.
The far-end of described electrode or pipe shaft arranges the hole 11 of one or more sprinkling liquid coolants.Liquid coolant arrives lesion tissue surface by the hole on electrode or pipe shaft by spray coolant, for reducing lesion tissue surface temperature, prevents the generation of complication.The concrete spray structure of electrode or pipe shaft, as shown in Fig. 8-10, can be various forms or its combination.
As shown in Figure 2, the first control knob rotates can strain the first traction fiber, the first traction fiber traction guiding tube distal deflection.
As shown in Figure 3, the second control knob 3 is fixedly connected with spiral ablation catheter 6, and the second control knob and handle 1 are slidably connected, and while sliding the second control knob, the second control knob advances spiral ablation catheter 6, and the far-end of spiral ablation catheter 6 stretches out in the cavity of guiding tube.
In the shape of a spiral, the size of the circle of spiral part can be for fixing or adjustable for the far-end 7 of described spiral ablation catheter 6.The end of the far-end spiral part 7 of described spiral ablation catheter 6 is straight section part 8.
As shown in Figure 3, Figure 4, when rotation the 3rd control knob 4, the second traction fiber is tightened up, in the time that the second traction fiber is tightened up, and the reduced of the circle of the spiral part of the far-end 7 of spiral ablation catheter 6.
The far-end of described electrode or pipe shaft arranges the hole 11 of one or more sprinkling liquid coolants.Liquid coolant arrives lesion tissue surface by the hole on electrode or pipe shaft by spray coolant, for reducing lesion tissue surface temperature, prevents the generation of complication.
Again as shown in Figure 3, preferably, described electrode 9 is arranged on the far-end of described spiral ablation catheter, and described electrode can be placed one or more electrodes.The electrode pair lesion tissue that is arranged on far-end helical form 7 plays ablation effect.Stimulation can be diagnosed and provide to the electrode that is arranged on the straight section part of the end of far-end spiral part, can verify melt whether thorough.
After melting, the electrode that is positioned at the straight section part 8 of the end of far-end spiral part 7 can send stimulus signal, and the electrode on ablation catheter far-end spiral is used for receiving stimulus signal.If stimulus signal can be received by wherein any one or more electrodes on spiral, melt not thoroughly, need selectivity ablation again; Otherwise, reached therapeutic effect.
Preferably, described electrode 9 is ring electrode or wire-winding electrode.
Preferably, described guiding tube has at least one chamber.
Controllable bending spiral ablation catheter can be realized quick circumferential ablation or linear ablation.
Second and the 3rd control and turn round and can merge into a function key in another embodiment of the present invention, function key can push-and-pull, and function key tail end can rotate, and as shown in Fig. 5-7, its operational approach is similar to Example 1.
Fig. 8 is electrode on distal end of catheter or the partial schematic diagram of pipe shaft.
Fig. 9 is the partial schematic diagram of electrode on distal end of catheter or the different embodiments of pipe shaft.
Figure 10 is the partial schematic diagram of electrode on distal end of catheter or the different embodiments of pipe shaft.
Disclosed all features in this description, or step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this description (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (10)
1. a controllable bending spiral perfusion cannula, comprises handle, is arranged on operating element, guiding tube and spiral ablation catheter in handle; Guiding tube is connected with operating element with spiral ablation catheter, the activity of spiral ablation catheter be arranged on guiding tube intracavity, in guiding tube, be provided with the first traction fiber, in spiral ablation catheter, be provided with the second traction fiber, described spiral ablation catheter is provided with electrode; It is characterized in that: described operating element comprises,
Control the first control knob of guiding tube far-end bending,
Control the rotation of spiral ablation catheter and/or flexible conduit control knob,
The far-end of described spiral ablation catheter in the shape of a spiral, is provided with one or more electrodes on spiral section; The hole of one or more spraying liquids is set on described electrode or pipe shaft.
2. controllable bending spiral perfusion cannula as claimed in claim 1, is characterized in that, described conduit control knob comprises the second control knob and the 3rd control knob, and the second control knob is fixedly connected with described spiral ablation catheter, and is slidably connected with handle; The 3rd control knob is coaxially fixedly connected with described spiral ablation catheter, and is rotationally connected with handle.
3. controllable bending spiral ablation catheter as claimed in claim 1, it is characterized in that, described conduit control knob is an integrated control functions key, and this integrated control functions key is connected with described spiral ablation catheter, and can be slidably connected along handle, its afterbody can be around rotatable handle.
4. controllable bending spiral perfusion cannula as claimed in claim 1, is characterized in that, described electrode is arranged on described spiral ablation catheter far-end.
5. controllable bending spiral perfusion cannula as claimed in claim 1, is characterized in that, twist, the second traction fiber of controlling spiral type size is connected to conduit control knob to the far-end of spiral ablation catheter.
6. controllable bending spiral perfusion cannula as claimed in claim 1, is characterized in that, the spiral section terminal part of the far-end of spiral ablation catheter also has a straight section, 1 or 1 is installed with top electrode on straight section.
7. controllable bending spiral perfusion cannula as claimed in claim 6, is characterized in that, the electrode of installing on described straight section is ring electrode or wire-winding electrode.
8. controllable bending spiral perfusion cannula as claimed in claim 7, is characterized in that, described guiding tube has at least one chamber.
9. controllable bending spiral ablation catheter as claimed in claim 2, is characterized in that, described the first control knob and the 3rd control knob are rotation key.
10. controllable bending spiral ablation catheter as claimed in claim 2, is characterized in that, described the second control knob is the slide key sliding before and after handle orientations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483252.5A CN103830002B (en) | 2012-11-23 | 2012-11-23 | Controllable bending spiral perfusion cannula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483252.5A CN103830002B (en) | 2012-11-23 | 2012-11-23 | Controllable bending spiral perfusion cannula |
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| CN103830002A true CN103830002A (en) | 2014-06-04 |
| CN103830002B CN103830002B (en) | 2016-05-18 |
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| CN201210483252.5A Active CN103830002B (en) | 2012-11-23 | 2012-11-23 | Controllable bending spiral perfusion cannula |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982733A (en) * | 2015-02-27 | 2016-10-05 | 四川锦江电子科技有限公司 | Controllable multi-electrode ablation device |
| CN108143481A (en) * | 2016-12-02 | 2018-06-12 | 四川锦江电子科技有限公司 | A kind of ablation catheter and the ablating device for including this conduit |
| CN111248995A (en) * | 2019-12-31 | 2020-06-09 | 韦伯斯特生物官能(以色列)有限公司 | Use of flushing on irreversible electroporation (IRE) electrodes to prevent arcing |
| CN113384319A (en) * | 2021-06-02 | 2021-09-14 | 上海腾复医疗科技有限公司 | A catheter |
| WO2024055927A1 (en) * | 2022-09-15 | 2024-03-21 | 上海微创医疗器械（集团）有限公司 | Medical catheter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471982A (en) * | 1992-09-29 | 1995-12-05 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
| US5913854A (en) * | 1997-02-04 | 1999-06-22 | Medtronic, Inc. | Fluid cooled ablation catheter and method for making |
| US20010039413A1 (en) * | 1998-05-05 | 2001-11-08 | Bowe Wade A. | Preformed steerable catheter with movable outer sleeve and method for use |
| CN102488552A (en) * | 2011-12-15 | 2012-06-13 | 四川锦江电子科技有限公司 | Manageable spiral electrophysiology catheter |
-
2012
- 2012-11-23 CN CN201210483252.5A patent/CN103830002B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471982A (en) * | 1992-09-29 | 1995-12-05 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
| US5913854A (en) * | 1997-02-04 | 1999-06-22 | Medtronic, Inc. | Fluid cooled ablation catheter and method for making |
| US20010039413A1 (en) * | 1998-05-05 | 2001-11-08 | Bowe Wade A. | Preformed steerable catheter with movable outer sleeve and method for use |
| CN102488552A (en) * | 2011-12-15 | 2012-06-13 | 四川锦江电子科技有限公司 | Manageable spiral electrophysiology catheter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982733A (en) * | 2015-02-27 | 2016-10-05 | 四川锦江电子科技有限公司 | Controllable multi-electrode ablation device |
| CN108143481A (en) * | 2016-12-02 | 2018-06-12 | 四川锦江电子科技有限公司 | A kind of ablation catheter and the ablating device for including this conduit |
| CN111248995A (en) * | 2019-12-31 | 2020-06-09 | 韦伯斯特生物官能(以色列)有限公司 | Use of flushing on irreversible electroporation (IRE) electrodes to prevent arcing |
| CN111248995B (en) * | 2019-12-31 | 2021-01-01 | 韦伯斯特生物官能(以色列)有限公司 | Use of flushing on irreversible electroporation (IRE) electrodes to prevent arcing |
| CN113384319A (en) * | 2021-06-02 | 2021-09-14 | 上海腾复医疗科技有限公司 | A catheter |
| WO2024055927A1 (en) * | 2022-09-15 | 2024-03-21 | 上海微创医疗器械（集团）有限公司 | Medical catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103830002B (en) | 2016-05-18 |
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Address after: No. 5, Wuke East 3rd Road, Wuhou District, Chengdu, Sichuan 610000 Patentee after: Sichuan Jinjiang Electronic Medical Device Technology Co.,Ltd. Address before: No. 5, Wuke East 3rd Road, Wuhou District, Chengdu, Sichuan 610000 Patentee before: SICHUAN JINJIANG ELECTRONIC SCIENCE AND TECHNOLOGY Co.,Ltd. |