CN104434307B - Mapping catheter - Google Patents
Mapping catheter Download PDFInfo
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- CN104434307B CN104434307B CN201410799474.7A CN201410799474A CN104434307B CN 104434307 B CN104434307 B CN 104434307B CN 201410799474 A CN201410799474 A CN 201410799474A CN 104434307 B CN104434307 B CN 104434307B
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- supporting member
- control handle
- mapping catheter
- distal end
- section
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Abstract
The invention relates to the field of medical catheters, in particular to a mapping catheter. The mapping catheter comprises a controlling handle, wherein a catheter body is installed on the controlling handle. The mapping catheter is characterized by further comprising an annular far end which is installed at an end of the catheter body and connected with the controlling handle through the catheter body, an electrode is arranged on the surface of the annular far end, and a supporting component for controlling deformation of the annular far end is arranged inside the annular far end; the supporting component is formed in an open loop structure and has an initial state and a spiral state. In the initial state of the supporting component, one point of the cross section at any position of the annular part and the point at the same position of another cross section are in the same plane, the controlling handle pulls the free end of the supporting component through a connector arranged inside the catheter body, the supporting component can be changed to the spiral state from the initial state and extend to the direction far away from the controlling handle, and in the pulling process, the screw pitch is not changed or increased. The mapping catheter enables the electrophysiologic interference phenomenon among electrodes to be controllable.
Description
Technical field
The present invention relates to medical catheter field, particularly to a kind of mapping catheter.
Background technology
Because the physiological structure of human body is complicated, need distal end of catheter of different shapes and the superior handle of handling,
Make conduit accurately reach different lesions positions and adapt to heteroid lesions position be extremely challenging.In order to solve this
Problem, people employ conduit and its joystick of various structures, such as public in U.S. Patent application us2008039918a1
The conduit of a kind of dual control opened and joystick, the far-end of this conduit can be bent or adjusts the diameter of spiral part, its
The diameter of middle bending and adjustment spiral part is to be realized by two control keys on control handle respectively, in practical operation
During, user needs to adjust respectively, is not easy to be directly realized by the control of conduit with handss and operates its conduit simultaneously remote
End only has a kind of spiral, and, electrode when reducing diameter, on distal loop and ring when shrinking for the existing spiral
Hypotelorism leads to electro physiology to disturb, and has the risk producing electro physiology interference.
Content of the invention
It is an object of the invention to the above-mentioned deficiency in the presence of overcoming prior art, one kind is provided to make electro physiology between electrode
The controlled mapping catheter of interference phenomenon.
In order to realize foregoing invention purpose, the invention provides technical scheme below:
A kind of mapping catheter, comprising:
Annular distal end, surface layout electrode, annular distal end is internally provided with the supporting member controlling annular distal end deformation, bar
With open loop structure molding, it is divided into original state and spiral status to shape component；
Control handle, is connected with supporting member one end by body, and under supporting member original state, annulus is any one
With other cross section same position points all in the same plane, control handle sets along tubular body any of place cross section by one
The connector put pulls supporting member free end, supporting member can be made to be changed into spiral status from original state, to away from manipulation
Handle orientations extend, and in drawing process, pitch is constant or increases, the structure of adjustable support component annulus, that is, adjust
The shape of its cross section, controls the structure after its molding, makes the pitch under spiral status controlled, it is to avoid produce electro physiology interference
(distance producing electro physiology interference in different environments between two electrodes is different, so under the controlled structure of the application, energy
Enough avoid the generation of the mutual electro physiology interference phenomenon of electrode, to prevent it from affecting mapping effect).
As the preferred version of the present invention, under supporting member original state, described supporting member cross section Chang two ends
Connecting line extends to control handle direction, and the closer to the central axis of the supporting member of ring-type, supporting member is bar shaped, cross section
Non-circular, program scope is larger, that is, enable original state to the transformation of spiral status, prior art has a kind of similar
The supporting member of Octopuses tentacle, in free end extension, cross-sectional area gradual change is little, is equally capable of helical form for its bottom
State, but its top is thinner, is easily deformed, service life is not high, if will ensure that its free end intensity, life-span reach requirement,
Its bottom is very thick, can not meet overall performance again.
As the preferred version of the present invention, described cross section is symmetric shape, under original state, the symmetrical center line of cross section
It is acute angle with this plane angle, towards outside open loop supporting member, symmetrical center line is to control handle direction for this acute angle opening
During extension, near the central axis of the supporting member of ring-type, symmetrical supporting member is convenient to be processed, the convenient control to pitch.
As the preferred version of the present invention, described connector includes the first draught line, and it is arranged along supporting member, and one end is even
It is connected to supporting member free end, the other end is connected on control handle, can be retracted toward control handle along installation path by operation,
Due to the restriction of present configuration, pull along the first draught line installation path supporting member free end when, you can form spiral
State.
As the preferred version of the present invention, described connector also includes the second draught line, and its one end is connected to inboard wall of tube body
On, the other end connects to control handle, can be pulled to body bending, a how controlled state, make conduit to lesions position
Adaptability higher.
As the preferred version of the present invention, the section that described body is pulled bending by the second draught line is provided with 1 or 2
Individual or multiple electrodes, coordinate the form for showing body bending with the electrode of annular distal end.
As the preferred version of the present invention, described acute angle is more than 0 ° and is less than 35 °.
As the preferred version of the present invention, described acute angle is more than or equal to 35 ° and is less than 65 °.
As the preferred version of the present invention, described acute angle is more than or equal to 65 ° and is less than 90 °.
As the preferred version of the present invention, described second draught line is fixedly connected on second being slidably installed in control handle
On slide block, the second slide block is provided with and can rotate, mutually there is the large and small gear that semidiameter fixation stack, its point
Not Pei He two parts moving on the contrary in front and back on control handle, gear wheel and little gear have semidiameter, and then produce relatively
Displacement, thus needing the strength consuming to reduce, reaches labour-saving purpose.
Compared with prior art, beneficial effects of the present invention:
The structure of adjustable support component annulus, makes the pitch under spiral status controlled, it is to avoid produces electro physiology and does
Disturb.
Brief description:
Fig. 1 is the application controlled mapping catheter overall schematic；
Fig. 2 is the distal end of catheter profile that the application is uniformly distributed single electrode；
Fig. 3 is the distal end of catheter profile that the application is uniformly distributed 2 electrodes；
Fig. 4 is the application bending section sectional view；
Fig. 5 is the supporting member first structure schematic diagram of the application original state；
Fig. 6 is supporting member second structural representation of the application original state；
Fig. 7 is the supporting member first structure schematic diagram of the application deformation state；
Fig. 8 is supporting member second structural representation of the application deformation state；
Fig. 9 is the annular distal end first structure schematic diagram that the application is uniform-distribution with single electrode；
Figure 10 is annular distal end second structural representation that the application is uniform-distribution with single electrode；
Figure 11 is the coiled distal end first structure schematic diagram that the application is uniform-distribution with single electrode；
Figure 12 is coiled distal end second structural representation that the application is uniform-distribution with single electrode；
Figure 13 is the annular distal end first structure schematic diagram that the application is uniform-distribution with 2 electrodes；
Figure 14 is annular distal end second structural representation that the application is uniform-distribution with 2 electrodes；
Figure 15 is the coiled distal end first structure schematic diagram that the application is uniform-distribution with 2 electrodes；
Figure 16 is coiled distal end second structural representation that the application is uniform-distribution with 2 electrodes；
Figure 17 is the application handle portion sectional view；
Figure 18 is the application handle portion explosive view；
Figure 19 is the spiral type cooperation figure that the application handle portion controls the first draught line；
Figure 20 is the application original state schematic diagram；
Figure 21 is the application annular distal end bending schematic diagram；
Figure 22 is the application spiral far-end reducing schematic diagram；
Figure 23 is the application bending and spiral far-end reducing schematic diagram；
Figure 24 is the application body sectional view；
Figure 25 is the application the second slide block cooperation schematic diagram.
Figure 26 is the mapping functional schematic of the application bending part electrode.
In figure labelling: 1. annular distal end 2. coiled distal end 3. end antisitic defect structure 4. electrode 5. body 7. first traction
Supporting member 12. first tube chamber of supporting member 11. deformation state of line 8. second draught line, 9. electrode cable 10. original state
13. second tube chamber, 14. first slider track 15. first trip bolt, 16. push button 17. first slide block, 18. pulley 19. second fastens
Screw 20. knob, 21. mandrel 22. handle housing 23. second slide block, 24. stroke regulating screw 25. the 3rd trip bolt 26. canine tooth
Take turns 27. little gear, 28. bending section, 29. bending segment electrode a, 30. bending segment electrode b, 31. bending segment electrode a wire 32. bending
Segment electrode b wire.
Specific embodiment
With reference to embodiment and specific embodiment, the present invention is described in further detail.But this should not be understood
Scope for the above-mentioned theme of the present invention is only limitted to below example, all belongs to this based on the technology that present invention is realized
The scope of invention.
Embodiment 1
As Fig. 1, a kind of mapping catheter, comprising:
Annular distal end 1, surface layout electrode 4, annular distal end 1 is internally provided with and controls the bar shaped of annular distal end 1 deformation to prop up
Support component,, with open loop structure molding, it is divided into original state and spiral status for it, and its cross section is non-circular；
Control handle, is connected with supporting member one end by body 5, and under supporting member original state, annulus is any
At one, with other cross section same position points all in the same plane, control handle passes through one along along body 5 to any of cross section
The connector of portion's setting pulls supporting member free end, and it can be made to be changed into spiral status from original state, to away from manipulation handss
Handle direction extends, and in drawing process, pitch is constant or increases.
Under supporting member original state, the connecting line at described supporting member cross section Chang two ends prolongs to control handle direction
Stretch, the closer to the central axis of the supporting member of ring-type.
Described cross section is symmetric shape, and under original state, the symmetrical center line of cross section and this plane angle are sharp
Angle, this acute angle opening towards outside open loop supporting member, symmetrical center line to control handle direction extend when, near ring-type support
The central axis of component；It is provided with 1 or 2 or multiple electrodes in the section that bending is pulled by the second draught line on described body,
Coordinate the form for showing body bending with the electrode of annular distal end, described acute angle is more than 0 ° and is less than 35 °, or is more than or equal to
35 ° are less than 65 °, or are less than 90 ° more than or equal to 65 °.
Described connector includes the first draught line 7, and it is arranged along supporting member, and one end connects to supporting member free end,
The other end is connected on control handle, can be retracted toward control handle along installation path by operation.
Described connector also includes the second draught line 8, and its one end is connected on body 5 inwall, and the other end connects to manipulation
Handle, can be pulled to body 5 and bend.
Described annular distal end 1 Front-end Design has end antisitic defect structure 3, and it is shaped as hemispherical to guarantee in mapping not
Reason is touched and muscle injury tissue., it is dispersed with electrode cable 9 in annular distal end 1, it connects annular distal end 1 outer surface ring-type
The electrode 4 of setting, electrode cable 9 is communicated to control handle by body 5, is then connected to energy source.
Described electrode 4 can be one group with single, or two, three are one group, and every group of adjacent electrode 4 is in annular distal end
Distance on 1 is equal, and electrode 4 is respectively connected with electrode cable 9, described body 5 be internally provided with respectively power supply polar conductor 9, the
First, the cavity that the second draught line 8 passes through.
Described control handle is mainly sliding by knob 20, push button, the first slider track 14, mandrel 21, the first slide block 17, second
Block 23, handle housing 22 form；
First draught line 7 is fixed on the first slide block 17 through the pulley 18 being arranged on the first slider track 14, wherein sliding
Wheel 18 can rotate, and pulley 18 is arranged on the one end on the first slider track 14 away from annular distal end 1, and the first slide block 17 compares cunning
Wheel 18, farther from annular distal end 1, when needing to pull the first draught line 7, operation knob 20, make the first slide block 17 in the first slide block
Slide toward annular distal end 1 direction on track 14 and get final product (the first slide block 17 is slidably mounted on the first slider track 14), work as traction
Line can reduce friction when pulley 18 and have power-saving function；
First slide block 17 is placed on the first slider track 14 and can carry out back and forth movement along track, and knob 20 is tubulose
Part, cooperation in the first slider track 14 exterior circumferential, knob 20 indoor design have with the first slide block 17 external screw thread cooperation in
Screw thread, is installed on the first slider track 14 by the second trip bolt 19 simultaneously, and that is, knob 20 can be along the first slide block rail
Road 14 rotates and is unable to lengthwise movement, so that the first slide block 17 of inside is moved on the first slider track 14, and then carry during rotation
The deformation to control supporting member for the motion of dynamic first draught line 7, thus drive annular distal end 1 to be changed into helical form from original state
State (deformation and reducing)；
As Figure 17,18,25, described second traction fiber one end is fixedly connected on the second slide block 23, and described push button passes through the
One trip bolt 15 is not revolvable to be fixed on the first slider track 14, and wherein push button is internal has one with knob 20 outer surface
Fixed gap, to guarantee that knob 20 can rotate, the first slider track 14 is threaded connection mode with mandrel 21 and is fixedly connected, and second
Slide block 23 is slidably connected on mandrel 21, is provided with gear wheel 26 and little gear 27, gear wheel 26 and the little gear of overlap thereon
27 are integrated and are placed on the second slide block 23, and gear wheel 26 is engaged with the tooth bar on mandrel 21, little gear 27 and handle housing 22
On tooth bar engagement, handle housing 22 is slidably fitted in outside mandrel 21, when promoting push button, Tui Niu16Dai moving mandrel 21(core
Stroke regulating screw 24 is installed between axle 21 and handle housing 22, limits the maximum moving distance of mandrel 21, stroke adjustment spiral shell
Nail 24 is coordinated and rotatable with mandrel 21, and to change the length of its expenditure mandrel 21, the nut of stroke regulating screw 24 is mounted
A block on handle housing 22 is spacing, so that mandrel 21 displacement is limited in formation adjusting screw expenditure length, and the 3rd
Trip bolt 25 is installed on handle housing 22, and its end is stretched into inside handle housing 22, with a chute cooperation on mandrel 21, makes
Along this chute direction so that mandrel 21 will not rotate, stability is more preferable for the movement of mandrel 21), then drive gear wheel 26 to move,
And synchronization drive little gear 27(angular velocity is identical) to move on the tooth bar of handle housing 22, gear wheel 26 and little gear 27 have
Semidiameter, and then produce relative displacement, thus needing the strength consuming to reduce, reach labour-saving purpose (as the second traction fiber exists
Junction on body 5 is r relative to the displacement of the second slide block 23, and the displacement now pushing away torsion 16 is less than r), mandrel 21
When travelling forward with respect to the second slide block 23, body 5 is connected with the first slider track 14, and then pushing away torsion 16, body 5 is relative
Travel forward in the second slide block 23, the second slide block 23 body 5 rearward movement relatively, the second draught line 8 body 5 rearward movement relatively
Thus controlling whole annular distal end 1 to deflect, push button relative to knob 20 no longitudinally opposed motion it is ensured that release push button after can be immediately
Carry out rotary knob 20, knob 20 moves and do not produce impact to push button, that is, during knob 20 motion, push button is motionless, rotation during push button motion
Button 20 also therewith together with path move, in original state, push away turn round 16 on finger press at be located at knob 20 finger by
By at pressure, do not need finger constantly to do during use and move on a large scale, different adjacent pushing away only need to be controlled to turn round 16 and knob
20, easy to operate.
As Fig. 2-24, the application is specifically made up of annular distal end 1, body 5, control handle, and annular distal end 1 is in original state
When be uniformly distributed electrode 4 thereon in same level, its shape is determined by the supporting member 10 of internal original state, initially
The supporting member 10 of state annular section under not being subject to external force state has shape in same level and with longitudinally perpendicular simultaneously
Shape memory function, the supporting member 10 of original state is formed by cylinder material is moulding, and its annular section about 2/3 region is through secondary
Be processed into flat structure, specific practice be by inside and outside cylinder material in its about 2/3 region with the horizontal 20 degree -70 spend
Gradient carries out excision material, and ensures the interior excision face of cylinder material tiltedly upward, and outer excision face is oblique down, the support of original state
Its structure design purpose of component 10 is to guarantee that the supporting member 10 of original state can be changing into change shape when end is subject to external force
The supporting member 11 of state is that supporting member becomes spirality pitch and becomes big and annular diameter and reduces, and coiled distal end 2 shape is by becoming
The supporting member 11 of shape state determines, annular distal end 1 and coiled distal end 2 are designed as adapting to the mark of different parts under different condition
Survey, annular distal end 1 Front-end Design has end antisitic defect structure 3, it is shaped as hemispherical to guarantee the not reason touching in mapping
And muscle injury tissue, it is dispersed with electrode cable 9, the supporting member 10 of original state in annular distal end 1 and control annular remote
End 1 change spiral type reduces the first draught line 7 that diameter is changing into spiral far-end, wherein electrode cable 9 one end and electrode 4 phase
Even, the other end is connected with equipment through body 5, control handle, and the first draught line 7 one end is fixed on the end of annular distal end 1, through pipe
Body 5 is connected with the first slide block 17 of control handle.
Second draught line 8 controls the deflection of annular distal end 1 and coiled distal end 2, and its principle is that the second draught line 8 is riveted on
On the body 5 of bending section 28, wherein second draught line 8 other one section be fixed on the second slide block 23, when the second draught line 8 is subject to
During pulling force, because body 5 material of bending section 28 is softer relative to body 5, bending section 28 to curving, and then will realize annular
Far-end 1 and the deflection of coiled distal end 2, are dispersed with 2 different size of first tube chambers 12 and the second tube chamber 13 in body 5, in
For loculus near side, the second draught line 8 is passed through with the first draught line 7 first tube chamber 12 through the first tube chamber 12, electrode cable 9
Second tube chamber 13, body 5 far-end is connected to annular distal end 1 and coiled distal end 2, and near-end is fixed in control handle.
Control handle is mainly by knob 20, push button, the first slider track 14, mandrel 21, the first slide block 17, the second slide block
23rd, handle housing 22, composition.First draught line 7 is fixed on the first slide block through the pulley 18 being fixed on the first slider track 14
On 17, its middle pulley 18 can rotate and then can reduce friction when draught line is through pulley 18 has power-saving function, a slide block
It is placed on the first slider track 14 and back and forth movement can be carried out along track.Knob 20 is designed with and external screw thread on the first slide block 17
The female thread of cooperation, passes through the second trip bolt 19(spacing simultaneously) it is arranged on the first slider track 14, that is, knob 20 can edge
First slider track 14 rotates and is unable to lengthwise movement, so that the first slide block 17 of inside is moved on the first slider track 14, enters
And drive the lengthwise movement of the first draught line 7 deformation and reducing to control annular distal end 1.Push button passes through the first trip bolt 15
Not revolvable it is fixed on the first slider track 14. wherein push button is internal has certain interval, with true with knob 20 outer surface
Protect knob 20 can rotate, the first slider track 14 is firmly connected with mandrel 21, and gear wheel 26 is integrated with little gear 27 and is placed in
On second slide block 23, gear wheel 26 is engaged with the tooth bar on mandrel 21, and little gear 27 is engaged with the tooth bar on handle housing 22, when
When promoting push button, mandrel 21 drives gear wheel 26 to move, and synchronous pinion gear 27 moves on the tooth bar of handle housing 22, gear wheel
26 and little gear 27 there is semidiameter, and then produce relative displacement, thus need consume strength reduce, reach labour-saving mesh
's.Mandrel 21 travels forward with respect to the second slide block 23, and body 5 is connected with the first slider track 14, and then when pushing away torsion 16
Body 5 travels forward with respect to the second slide block 23, the second slide block 23 body 5 rearward movement relatively, and the second slide block 23 leads with second
Lead 8 connects, and the second draught line 8 body 5 rearward movement relatively is thus control annular distal end 1 to deflect with coiled distal end 2.Push button
The relatively no longitudinally opposed motion of knob 20 it is ensured that rotary knob 20 can be carried out immediately after release push button. knob 20 moves to pushing away
It is that during knob 20 motion, push button is motionless that button does not produce impact, knob 20 also lengthwise movement together therewith during push button motion.As Figure 22
With 23, in body bending part setting bending segment electrode a29 and bending segment electrode b30, by bending segment electrode a wire 31 and bending
Segment electrode b wire 32 is connected with establishing, the electricity of bending segment electrode a29, bending segment electrode b30 and annular distal end in practical operation
Pole coordinates, as shown in figure 26 to show the form that body bends.
Claims (9)
1. a kind of mapping catheter, comprising:
Control handle, is provided with body thereon it is characterised in that also including:
It is installed on body end the annular distal end being connected by body, its surface layout electrode, annular distal end with control handle
It is internally provided with the supporting member controlling annular distal end deformation；
With open loop structure molding, it is divided into original state and spiral status to supporting member, under supporting member original state, annulus
Point any one place cross section a little with other cross section same position points all in the same plane, control handle passes through one along pipe
The connector of internal portion setting pulls supporting member free end, and supporting member can be made to be changed into spiral status from original state, to
Extend away from control handle direction, and in drawing process, pitch is constant or increases；Under supporting member original state, described support
The connecting line at the longest two ends of member cross-sections to control handle direction extend when, be increasingly closer to the center of the supporting member of ring-type
Axis, supporting member is bar shaped, and cross section is non-circular.
2. a kind of mapping catheter according to claim 1 it is characterised in that described cross section be symmetric shape, initial shape
Under state, the symmetrical center line of cross section and this plane angle are acute angle, and this acute angle opening is towards outside open loop supporting member, right
Claim center line to control handle direction extends when, the central axis of the supporting member of close ring-type.
3. a kind of mapping catheter according to claim 2 is it is characterised in that described connector includes the first draught line, its
Along supporting member arrangement, one end connects to supporting member free end, and the other end is connected on control handle, can be by operation along peace
Dress path retracts toward control handle.
4. a kind of mapping catheter according to claim 3 is it is characterised in that described connector also includes the second draught line,
Its one end is connected on inboard wall of tube body, and the other end connects to control handle, can be pulled to body bending.
5. a kind of mapping catheter according to claim 4 it is characterised in that pulled curved by the second draught line on described body
It is provided with electrode in bent section.
6. a kind of mapping catheter according to claim 2 is less than 35 ° it is characterised in that described acute angle is more than 0 °.
7. a kind of mapping catheter according to claim 2 is less than 65 ° it is characterised in that described acute angle is more than or equal to 35 °.
8. a kind of mapping catheter according to claim 2 is less than 90 ° it is characterised in that described acute angle is more than or equal to 65 °.
9. a kind of mapping catheter according to claim 4 is it is characterised in that described second draught line is fixedly connected on manipulation
On the second slide block being slidably installed in handle, the second slide block is provided with can rotate, mutually exist semidiameter and fixation be stacked in
Large and small gear together, it is respectively cooperating with two parts moving on the contrary in front and back on control handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799474.7A CN104434307B (en) | 2014-12-19 | 2014-12-19 | Mapping catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799474.7A CN104434307B (en) | 2014-12-19 | 2014-12-19 | Mapping catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104434307A CN104434307A (en) | 2015-03-25 |
| CN104434307B true CN104434307B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410799474.7A Active CN104434307B (en) | 2014-12-19 | 2014-12-19 | Mapping catheter |
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| CN (1) | CN104434307B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106308921A (en) * | 2015-06-30 | 2017-01-11 | 四川锦江电子科技有限公司 | Ablation device having pressure detection function |
| CN106806016A (en) * | 2015-12-01 | 2017-06-09 | 四川锦江电子科技有限公司 | A kind of ablating device |
| EP3423141B1 (en) * | 2016-04-08 | 2023-01-25 | St. Jude Medical, Cardiology Division, Inc. | Mapping variable loop catheter handle |
| CN105919589B (en) * | 2016-05-27 | 2018-12-18 | 深圳市惠泰医疗器械有限公司 | The head end of belt sensor has the magnetic orientation Circumferential catheter conduit of coiled spiral structure |
| CN116965908B (en) * | 2023-06-27 | 2024-04-09 | 上海玮启医疗器械有限公司 | Intracardiac mapping electrode catheter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002087676A2 (en) * | 2001-04-27 | 2002-11-07 | C.R. Bard, Inc. | Electrophysiology catheter for mapping and/or ablation |
| JP4027411B1 (en) * | 2007-03-29 | 2007-12-26 | 日本ライフライン株式会社 | Electrode catheter |
| WO2012134911A1 (en) * | 2011-03-25 | 2012-10-04 | Medtronic Ablation Frontiers Llc | Cooling systems for electrode arrays |
| US9220433B2 (en) * | 2011-06-30 | 2015-12-29 | Biosense Webster (Israel), Ltd. | Catheter with variable arcuate distal section |
| JP2013202241A (en) * | 2012-03-29 | 2013-10-07 | Japan Lifeline Co Ltd | Electrode catheter |
| CN103565514B (en) * | 2012-08-01 | 2015-05-06 | 四川锦江电子科技有限公司 | Double-control bent spiral electrophysiological catheter |
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2014
- 2014-12-19 CN CN201410799474.7A patent/CN104434307B/en active Active
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| CN104434307A (en) | 2015-03-25 |
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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. |
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