CN103284786B - The perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection - Google Patents
The perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection Download PDFInfo
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- CN103284786B CN103284786B CN201210049232.7A CN201210049232A CN103284786B CN 103284786 B CN103284786 B CN 103284786B CN 201210049232 A CN201210049232 A CN 201210049232A CN 103284786 B CN103284786 B CN 103284786B
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Abstract
The invention discloses the perfusion electrophysiologicalcatheter catheter of a kind of controllable bidirectional deflection, the operating element comprising at least one section of electrode being arranged in helical form coiling on body, grip and be arranged on for driving traction fiber to move in grip, it is characterized in that: the electrode of described helical form coiling is the electrode tube of hollow, and having multiple through hole in electrode tube surface distributed, electrode tube is inner to be communicated with the intrusion pipe of conveying infusion liquid.Operating element comprises a rotary part, the rotating shaft of this rotary part is vertical with the length direction of grip, this rotary part has the first fixture for difference fixed traction silk and the second fixture, and the first fixture and the second fixture are distributed in the both sides of grip centrage.Of the present inventionly effectively can improve perfusion effect by hydrojet electro physiology electrode, and can improve the safety and reliability of ablation catheter, the manipulation of this device flexibly, accurately can control body and arrive different lesions position.
Description
Technical field
The present invention relates to the joystick of medical catheter, the perfusion electrophysiologicalcatheter catheter that especially a kind of controllable bidirectional for medical catheter deflects.
Background technology
Ablation catheter is normally sent in heart by existing cardiac ablation operation, and by forming loop at the comparative electrode at catheter tip electrode and patient back, apply heat and to damage or ARR cardiac muscular tissue wherein occurs in modification, making it dewater to solidify to lose conductivity function.This treatment is mainly used in tachy-arrhythmia, as electrophysiology ablations such as paroxysmal supraventricular tachycardia, atrial tachycardia, atrial flutter and paroxysmal ventricular tachycardiies.When melting, in order to reach darker depth of ablation, higher ablation energy can be used clinically, so often causing cardiac muscular tissue's hot-spot and causing incrustation, thus have impact on effectiveness and the safety of operation.Therefore, in some radiofrequency ablation procedures, can select to adopt perfusion-type radiofrequency ablation catheter, by spray coolant at ate electrode, anti-Hemostatic Oral Liquid produces condensation.
As disclosed a kind of filling type conduit in Chinese utility model patent CN201822910U; comprise catheter main body, melt part and porous ablating electrode, wherein, ablating electrode comprises a main body and a plug-in unit; main body is sintered by porous material and forms, and plug-in unit comprises at least one fluid passage; Conduit also comprises intrusion pipe, and infusion liquid flows out through the hole of intrusion pipe from ablating electrode, thus cools electrode and cardiac muscular tissue.More even in order to what infusion liquid was sprayed; usual meeting arranges multiple hole in main body; in Chinese invention patent application CN200910159385.5 and in Chinese utility model patent 200920068409.1, such as all disclose similar main body configuration; or by increasing fill orifice group in main body; increase perfusion spray area, to reaching good perfusion effect.
Summary of the invention
The object of this invention is to provide the perfusion electrophysiologicalcatheter catheter that a kind of controllable bidirectional that is easy to operate, that advance good stability deflects.
Technical scheme of the present invention is as follows:
A kind of perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection, comprise conduit and the grip with tubes connection, the traction fiber of manipulation conduit is had in catheter interior, temperature sensor and electrode is provided with at the far-end of conduit, operating element for driving traction fiber to move is installed in grip, it is characterized in that: traction fiber is more than 2, described operating element comprises a rotary part, the rotating shaft of this rotary part is vertical with the length direction of grip, this rotary part has the first fixture for fixing different traction fiber respectively and the second fixture, and the first fixture and the second fixture are distributed in the both sides of grip centrage.
Supplementary technology scheme of the present invention is as follows:
Preferably, wire-winding electrode is comprised at the electrode of distal end of catheter.
Preferably, described wire-winding electrode is the electrode tube of hollow, and electrode tube is distributed with fill orifice, and electrode tube is connected with outside infusion liquid source with the intrusion pipe of grip inside by conduit.
Preferably, described electrode also comprises ring electrode.
Preferably, described first fixture is the first adjustment screw, and described second fixture is the second adjustment screw, and the first adjustment screw is parallel with rotating shaft with the second adjustment screw, and traction fiber is wrapped in adjustment screw.
Preferably, described rotary part is coordinated by guide rail and guide pillar with grip.
Preferably, described grip has the guide rail with two sections of arc-shapeds, rotary part has the guide pillar coordinated with guide rail.
Preferably, described guide pillar is adjustment screw.
Preferably, rotary part has one along the passage of grip length direction, the width of this passage is arranged to, when rotary part around rotating shaft when rotating for ± 60 °, the both sides of passage can not exceed grip centrage.
Preferably, described rotary part comprises the driving upper cover and driving lower cover that are positioned at grip outside, and be positioned at the drive block of grip inside, several parts are installed together through the guide rail driven on the hole of upper cover, grip, hole on drive block and the hole that covers under driving by adjustment screw, between driving upper cover and grip, be provided with elastic seal ring, between driving lower cover and grip, be provided with elastic seal ring.
Preferably, driving upper cover or driving the both sides of lower cover to be fixed with regulating handle.
The invention has the beneficial effects as follows:
1, can manipulate two traction fiber routing motions, the far-end controlling conduit deflects towards multiple directions, operates more flexible;
2, wire-winding electrode is the electrode tube of hollow, and electrode tube is distributed with fill orifice, and electrode tube is connected with outside infusion liquid source with the intrusion pipe of grip inside by conduit, and by spray coolant at ate electrode, anti-Hemostatic Oral Liquid produces condensation and incrustation.
3, in some preferred embodiments, the design of grip and rotary part meets human engineering principle, and palm can hold the handle of rotary part completely, in operating process, finger, palm indefatigability, and in user operating process smooth operation;
4, in some preferred embodiments, grip and rotary part assembly relation rationally, make the structure of whole device more simple, reasonable, are easy to processing assembling.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Fig. 2 is the assembly drawing of the embodiment of the present invention.
Fig. 3 is the sectional view of the rotating part of the embodiment of the present invention.
Fig. 4 is the schematic diagram of one embodiment of the invention distal end of catheter.
Fig. 5 is the sectional view of conduit portion embodiment illustrated in fig. 4.
Fig. 6 is the sectional view of conduit portion embodiment illustrated in fig. 4
Fig. 7 is the schematic diagram of embodiment of the present invention distal end of catheter.
Fig. 8 is sectional view embodiment illustrated in fig. 7.
Detailed description of the invention
Specific embodiments of the invention, as depicted in figs. 1 and 2, a kind of perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection, comprise: conduit (in this manual, term conduit refers to and comprises conduit and similar medical apparatus and instruments), in FIG, conduit is divided into substantially: electrode 5, far-end 4, catheter tube 1, and the grip of control handle 2(and propulsion plant and operating element), control handle 2 entirety is used for controlling the relative position of traction fiber 6 and catheter tube 1, thus control the bending of far-end 4 or deflection, the wire 7 of transmission of electric signals or energy passes rotary part 22 in catheter tube 1, arrive the pigtail connection 8 of control handle 2.
The structural principle of the control handle of conduit of the present invention as shown in Figures 2 and 3.Wherein, grip 2 and the operating element be rotatably installed in grip, catheter tube 1 is connected with operating element 2, the traction fiber 6 of catheter interior is connected with operating element, operating element, by rotating, adjusts the length of two traction fibers 6, and then controls the bending of distal end of catheter 4.Described grip and operating element comprise: the handle lower cover 23 and the handle upper cover 21 that form grip 2, have outside handle lower cover 23 and handle upper cover 21 and drive upper cover 19 and drive lower cover 24, driving upper cover 19 and driving the position between lower cover 24 to have a spill spin block 22, and this spill spin block 22 is positioned at handle lower cover 23 and handle upper cover 21 is inner.Driving upper cover 19 and driving lower cover 24 are respectively equipped with through hole, for passing the first and second adjustment screw 18, first and second adjustment screw 18 are successively through the hole driven on upper cover 19, grooved rail corresponding on handle upper cover 21, hole on spill spin block 22, grooved rail on handle lower cover 23, drives the hole on lower cover 24 to coordinate with lock-screw 25 and is fixed together by several parts.A passage is had in spill spin block 22 inside, for passing through wire 7, the width of this passage is arranged to, when rotary part rotates within the scope of ± 60 ° or greater angle around rotating shaft, the both sides of passage can not exceed grip centrage, can ensure that wire can not be scratched like this.
A preferred embodiment of the present invention, as shown in Figure 4, Figure 5 and Figure 6, on the basis of above-described embodiment, the far-end 4 of conduit is provided with wire-winding electrode 51 and temperature sensor 17, wherein wire-winding electrode 51 is electrode tubes of hollow, divide multistage to be wound around, electrode tube is distributed with fill orifice, and electrode tube is connected with outside infusion liquid source with the intrusion pipe 53 of grip inside by conduit.Electrode tube can spray infusion liquid in operation uniformly, avoids incrustation in operation and produces the problems such as thrombosis.
A preferred embodiment of the present invention, as shown in Figure 7 and Figure 8, on the basis of a upper embodiment, only on the far-end 4 of conduit, adjacent near caudal end part is provided with one section of wire-winding electrode 51, then be provided with ring electrode 52 in wire-winding electrode 51 front portion, for wire-winding electrode 51 cooperating.
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
The present invention is not limited to aforesaid detailed description of the invention.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (5)
1. the perfusion electrophysiologicalcatheter catheter of a controllable bidirectional deflection, comprise conduit and the grip with tubes connection, the traction fiber of manipulation conduit is had in catheter interior, temperature sensor and electrode is provided with at the far-end of conduit, operating element for driving traction fiber to move is installed in grip, it is characterized in that: traction fiber is more than 2, described operating element comprises a rotary part, the rotating shaft of this rotary part is vertical with the length direction of grip, this rotary part has the first fixture for fixing different traction fiber respectively and the second fixture, and the first fixture and the second fixture are distributed in the both sides of grip centrage, described rotary part is coordinated by guide rail and guide pillar with grip, described grip has the guide rail of two sections of arc-shapeds, rotary part has the guide pillar coordinated with guide rail, rotary part has one along the passage of grip length direction, the width of this passage is arranged to, when rotary part around rotating shaft ± 60 ° rotate time, the both sides of passage can not exceed grip centrage, wire-winding electrode is comprised at the electrode of distal end of catheter, described wire-winding electrode is the electrode tube of hollow, multistage is divided to be wound around, electrode tube is distributed with fill orifice, electrode tube is connected with outside infusion liquid source with the intrusion pipe of grip inside by conduit.
2. the perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection according to claim 1, is characterized in that: described electrode also comprises ring electrode.
3. the perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection according to claim 1, it is characterized in that: described first fixture is the first adjustment screw, described second fixture is the second adjustment screw, first adjustment screw is parallel with rotating shaft with the second adjustment screw, and traction fiber is wrapped in adjustment screw.
4. the perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection according to claim 2, is characterized in that: described guide pillar is adjustment screw.
5. the perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection according to claim 1, it is characterized in that: described rotary part comprises the driving upper cover and driving lower cover that are positioned at grip outside, and be positioned at the drive block of grip inside, several parts are installed together through the guide rail driven on the hole of upper cover, grip, hole on drive block and the hole that covers under driving by adjustment screw, between driving upper cover and grip, be provided with elastic seal ring, between driving lower cover and grip, be provided with elastic seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210049232.7A CN103284786B (en) | 2012-02-29 | 2012-02-29 | The perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210049232.7A CN103284786B (en) | 2012-02-29 | 2012-02-29 | The perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection |
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| Publication Number | Publication Date |
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| CN103284786A CN103284786A (en) | 2013-09-11 |
| CN103284786B true CN103284786B (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210049232.7A Active CN103284786B (en) | 2012-02-29 | 2012-02-29 | The perfusion electrophysiologicalcatheter catheter of controllable bidirectional deflection |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9248255B2 (en) | 2012-11-14 | 2016-02-02 | Biosense Webster (Israel) Ltd. | Catheter with improved torque transmission |
| CN107349010A (en) * | 2017-07-07 | 2017-11-17 | 昆山雷盛医疗科技有限公司 | Radio frequency ablation probe and preparation method thereof |
| JP7487218B2 (en) * | 2019-02-25 | 2024-05-20 | エドワーズ ライフサイエンシーズ コーポレイション | Adjustment mechanism and method for a guidewire - Patents.com |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1897885A (en) * | 2003-10-29 | 2007-01-17 | 乌德勒支大学医学中心 | Catheter and method, in particular for ablation and like technique |
| CN101405052A (en) * | 2006-03-16 | 2009-04-08 | 导管治疗有限公司 | An electrode sheath for a catheter |
| CN102000379A (en) * | 2009-08-28 | 2011-04-06 | 韦伯斯特生物官能公司 | Catheter with multi-functional control handle having rotational mechanism |
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2012
- 2012-02-29 CN CN201210049232.7A patent/CN103284786B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1897885A (en) * | 2003-10-29 | 2007-01-17 | 乌德勒支大学医学中心 | Catheter and method, in particular for ablation and like technique |
| CN101405052A (en) * | 2006-03-16 | 2009-04-08 | 导管治疗有限公司 | An electrode sheath for a catheter |
| CN102000379A (en) * | 2009-08-28 | 2011-04-06 | 韦伯斯特生物官能公司 | Catheter with multi-functional control handle having rotational mechanism |
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| CN103284786A (en) | 2013-09-11 |
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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. |