CN103830002B - Controllable bending spiral perfusion cannula - Google Patents
Controllable bending spiral perfusion cannula Download PDFInfo
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- CN103830002B CN103830002B CN201210483252.5A CN201210483252A CN103830002B CN 103830002 B CN103830002 B CN 103830002B CN 201210483252 A CN201210483252 A CN 201210483252A CN 103830002 B CN103830002 B CN 103830002B
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- ablation catheter
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- guiding tube
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Abstract
The invention discloses a kind of medical catheter device. A kind of controllable bending spiral ablation catheter, 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, and being arranged in guiding tube chamber of spiral ablation catheter activity, is provided with the first traction fiber in guiding tube, be fixedly installed the second traction fiber in spiral ablation catheter, and described spiral ablation catheter is provided with electrode; Described operating element comprises the first control knob, the second control knob and the 3rd 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 spiral helicine end of far-end of described spiral ablation catheter is straight section, and straight section part is provided with one or more electrodes; The hole of one or more spraying liquids is set on described electrode or pipe shaft. Conduit of the present invention can be controlled far-end ablation catheter and arrive fast specified tissue position, diagnoses and treats, and spraying liquid in therapeutic process, prevents the generation of complication, can be whether thorough by this conduit diagnoses and treatment after treatment, effectively raise curative effect.
Description
Technical field
The present invention relates to medical catheter device, especially a kind of medical controllable bending ablation catheter.
Background technology
Electrophysiologicalcatheter catheter, has been widely used in medical practice at present, mainly through subcutaneous puncture, conduit is delivered to differenceLesions position, pathogenic site is carried out to electrophysiologic study, RF ablation, thereby reaches the order 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 to repeatedly melts and controlTreat, need to expend a large amount of time, even not thorough because of melting, can not reach good result for the treatment of.
In the time carrying out ablation, in order to reach darker depth of ablation, can use clinically higher ablation energy, thisSample tends to cause lesion tissue hot-spot to cause multiple complications, even causes vessel retraction, thereby has affected operationValidity and security.
In order to address this problem, conduit of the present invention provides a solution that multi-electrode melts, and how electricly realizesThe utmost point melts simultaneously or multi-electrode selectively melts, and can realize fast diagnosis and treatment, and can test result for the treatment ofCard, confirms whether treatment is thorough. And in radiofrequency ablation procedures, adopt perfusion-type radiofrequency ablation catheter, spray coolant is existedNear electrode, reduce 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 is providedConduit, 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 is providedConduit. Controllable bending spiral perfusion cannula provided by the invention, can accurately arrive lesions position, operating element side simple to operateJust; In therapeutic process, cooling fluid be can spray, thrombus or incrustation avoided forming. Meanwhile, spiral perfusion cannula far-end straight sectionElectrode can be provided stimulation, and can verify melt whether thorough.
A kind of controllable bending spiral perfusion cannula, the operating element, guiding tube and the spiral that comprise handle, are arranged in handle disappearMelt conduit; Guiding tube is connected with operating element with spiral ablation catheter, and being arranged on of spiral ablation catheter activity guides in tube chamber,In guiding tube, be provided with the first traction fiber, be provided with the second traction fiber in spiral ablation catheter, described spiral ablation catheter arrangesThere is 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 button,
The far-end of described spiral ablation catheter in the shape of a spiral, is provided with one or more electrodes on spiral section; Described electrodeOr the hole of one or more spraying liquids is set on pipe shaft.
Preferably, described conduit control button comprises the second control knob and the 3rd control knob, the second control knob and described spiral shellRevolve ablation catheter and be fixedly connected with, and be slidably connected with handle; The 3rd control knob and described spiral ablation catheter be fixing company coaxiallyConnect, and be rotationally connected with handle. And second and the 3rd controls and turn round and also can merge into a function key, function key canPush-and-pull, 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. TheTwo control knobs are fixedly connected with spiral ablation catheter, and the second control knob and handle are slidably connected, while sliding the second control knob, and secondControl 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. DescribedThe end of the far-end spiral part of spiral ablation catheter is straight section part.
The hole of one or more spraying liquids is set on described electrode or pipe shaft. Cooling fluid is by the hole on electrode or pipe shaftSpray coolant, to lesion tissue surface, for reducing lesion tissue surface temperature, is prevented to the generation of complication.
The far-end of described spiral ablation catheter is provided with one or more electrodes. Be arranged on the electrode pair focus on spiral partOrganize ablation; The electrode that is arranged on the straight section part of spiral part end can or be provided stimulation for diagnosis, forChecking result for the treatment of.
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 cooling fluid, avoids forming thrombus or knotScab, 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 orProvide stimulate, can verify melt whether thorough.
Brief description of the drawings:
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.
Detailed description of the invention
Below in conjunction with test example and detailed description of the invention, the present invention is described in further detail. But this should not understoodFor 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 thisScope of invention.
As shown in Figure 1, a kind of controllable bending spiral perfusion cannula, comprises handle 1, is arranged on operating element in handle, drawsConduit 5 and spiral ablation catheter 6;
Guiding tube 5 is connected with operating element with spiral ablation catheter 6,6 activities of spiral ablation catheter be arranged on guiding tubeIn chamber, be provided with the first traction fiber in guiding tube, be fixedly installed the second traction fiber in spiral ablation catheter 6, described spiral disappearsMelt conduit 6 and be provided with electrode;
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 cooling fluids. Cooling fluid is by electrode or pipeHole with it to lesion tissue surface, for reducing lesion tissue surface temperature, prevents the generation of complication by spray coolant.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, and the first traction fiber traction guiding tube far-end is inclined to one sideTurn.
As shown in Figure 3, the second control knob 3 is fixedly connected with spiral ablation catheter 6, the second control knob and handle 1 company of slipConnect, slide when the second control knob, the second control knob advances spiral ablation catheter 6, and the far-end of spiral ablation catheter 6 is from guiding tubeIn cavity, stretch out.
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, when the second traction fiber is tightened upTime, 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 cooling fluids. Cooling fluid is by electrode or pipeHole with it to lesion tissue surface, for reducing lesion tissue surface temperature, prevents the generation of complication by spray coolant.
Again as shown in Figure 3, preferably, described electrode 9 is arranged on the far-end of described spiral ablation catheter, and described electrode is passablePlace one or more electrodes. The electrode pair lesion tissue that is arranged on far-end helical form 7 plays ablation effect. Be arranged on far-endStimulation can be diagnosed and provide to the electrode of the straight section part of the end of 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,Electrode on ablation catheter far-end spiral is used for receiving stimulus signal. If stimulus signal can by spiral wherein any one orMultiple electrodes receive, and melt not thoroughly, need again selective ablation; Otherwise, reached result for the treatment of.
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 canWith push-and-pull, function key tail end can rotate, and as shown in Fig. 5-7, its method of operating 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 exclusiveFeature and/or step beyond, all can combine by any way.
Disclosed arbitrary feature in this description (comprising any accessory claim, summary and accompanying drawing), unless chatted especiallyState, all can be replaced by other equivalences or the alternative features with similar object. ,, unless narration especially, each feature onlyIt is an example in a series of equivalences or similar characteristics.
The present invention is not limited to aforesaid detailed description of the invention. The present invention expands to any disclosure in this manualNew feature or any new combination, and the arbitrary new method disclosing or step or any new combination of process.
Claims (8)
1. a controllable bending spiral perfusion cannula, the operating element, guiding tube and the spiral that comprise handle, are arranged in handle meltConduit; Guiding tube is connected with operating element with spiral ablation catheter, and being arranged in guiding tube chamber of spiral ablation catheter activity, drawsIn conduit, be provided with the first traction fiber, be provided with the second traction fiber in spiral ablation catheter, described spiral ablation catheter is provided withElectrode; 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 button,
The far-end of described spiral ablation catheter in the shape of a spiral, is provided with one or more electrodes on spiral section; Described electrode or spiral shellRevolve the hole that one or more spraying liquids are set on ablation catheter pipe shaft;
The spiral section terminal part of the far-end of spiral ablation catheter also has a straight section, installs 1 with top electrode, described straight section on straight sectionThe electrode of upper installation is ring electrode or wire-winding electrode, for diagnosis or granting stimulus signal, the electricity on ablation catheter far-end spiralThe utmost point is used for receiving stimulus signal, checking result for the treatment of.
2. controllable bending spiral perfusion cannula as claimed in claim 1, is characterized in that, described conduit control button comprises secondControl knob and the 3rd control knob, the second control knob is fixedly connected with described spiral ablation catheter, and is slidably connected with handle; TheThree control knobs are coaxially fixedly connected with described spiral ablation catheter, and are rotationally connected with handle.
3. controllable bending spiral ablation catheter as claimed in claim 1, is characterized in that, described conduit control button is one and combinesClose control function key, this integrated control functions key is connected with described spiral ablation catheter, and can be slidably connected along handle, itsAfterbody can be around rotatable handle.
4. controllable bending spiral perfusion cannula as claimed in claim 1, is characterized in that, the electrode on described spiral ablation catheterBe arranged on described spiral ablation catheter far-end.
5. controllable bending spiral perfusion cannula as claimed in claim 1, is characterized in that, the far-end of spiral ablation catheter is spiralShape, the second traction fiber of controlling spirality size is connected to conduit control button.
6. controllable bending spiral perfusion cannula as claimed in claim 1, is characterized in that, described guiding tube has at least oneChamber.
7. controllable bending spiral ablation catheter as claimed in claim 2, is characterized in that, described the first control knob and the 3rd is controlledButton is rotation key.
8. controllable bending spiral ablation catheter as claimed in claim 2, is characterized in that, described the second control knob is along handle sideThe slide key sliding forwards, backwards.
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 CN103830002A (en) | 2014-06-04 |
| CN103830002B true 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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Families Citing this family (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 |
| US20210196372A1 (en) * | 2019-12-31 | 2021-07-01 | Biosense Webster (Israel) Ltd. | Using irrigation on irreversible-electroporation (ire) electrodes to prevent arcing |
| CN113384319B (en) * | 2021-06-02 | 2023-04-25 | 上海腾复医疗科技有限公司 | Catheter |
| CN115463307A (en) * | 2022-09-15 | 2022-12-13 | 上海微创医疗器械（集团）有限公司 | Medical catheter |
Citations (3)
| 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 |
| CN102488552A (en) * | 2011-12-15 | 2012-06-13 | 四川锦江电子科技有限公司 | Manageable spiral electrophysiology catheter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6592581B2 (en) * | 1998-05-05 | 2003-07-15 | Cardiac Pacemakers, Inc. | Preformed steerable catheter with movable outer sleeve and method for use |
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Patent Citations (3)
| 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 |
| CN102488552A (en) * | 2011-12-15 | 2012-06-13 | 四川锦江电子科技有限公司 | Manageable spiral electrophysiology catheter |
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| CN103830002A (en) | 2014-06-04 |
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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. |