CN205234628U - Ablation apparatus - Google Patents
Ablation apparatus Download PDFInfo
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- CN205234628U CN205234628U CN201520981862.7U CN201520981862U CN205234628U CN 205234628 U CN205234628 U CN 205234628U CN 201520981862 U CN201520981862 U CN 201520981862U CN 205234628 U CN205234628 U CN 205234628U
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Abstract
The utility model relates to a medical science radio frequency melts technical field, concretely relates to ablation apparatus, have and stretch into the inside work end of health, the work end sets up two at least foil gages, two at least foil gages are -Offset on work end circumferencial direction, be provided with between the region of the corresponding work end of two foil gages adjacent at least along the logical groove that the radial direction of work end link up, through realize to survey the stress data set got can accurate sureness whether melt the pipe suitable with the contact force of heart inner wall.
Description
Technical field
The utility model relates to medical radio-frequency ablation techniques field, is specifically related to a kind of ablating device.
Background technology
Arrhythmia cordis, there is abnormal change in the normal rhythm that refers to heart, arrhythmia cordis faster than normal cardiac rate (60-100 beat/min) is called tachyarrhythmia, taking palpitaition, nervous, uncomfortable in chest, weak, dizzy, dizzy etc. as main manifestations, can there is the performances such as pectoralgia, expiratory dyspnea, limb cold sweat go out, the loss of consciousness, tic in severe patient clinically. Arrhythmia cordis is one of common ARR disease in the world, the serious harm mankind's health and affect quality of life, and oneself becomes one of its treatment means current catheter ablation.
Catheter ablation claims again catheter ablation, this operation is under the monitoring of X-ray angiography machine, electrode catheter is sent into the chambers of the heart through vein or arteries, first check and determine the position that causes tachycardic anomaly sxtructure, then the local high frequency electric that discharges at this place, in very little scope, produce very high temperature, by thermal efficiency, make moisture evaporation in local organization, dry downright bad, reach blocking-up tachy-arrhythmia Accessory pathway and originating point, finally reach therapeutic purposes.
Radio-frequency ablation procedure has become the effective method of radical cure paroxysmal tachycardia at present, only melts suitable and just can reach good result for the treatment of at the electrode of distal end of catheter and the contact of cardiac muscular tissue through clinical confirmation. In the time that ablation catheter is treated, that conduit is inserted in heart, and distal end of catheter is contacted with wall of the heart, in this process, conventionally importantly make distal end of catheter and wall of the heart carry out good contact, the excessive worthless irreversible damage easily causing heart tissue of contact, when serious, even occur heart wall perforation, what contact was too small cannot reach the therapeutic purposes that thoroughly melt, and ablation effect is bad.
Existing technology mostly adopts the contact of electromagnetism or optical technology measuring guide far-end and tissue, and its equipment requirement is higher and complicated, and manufacturing cost is also relatively high. There is at present technology in conduit, to add the contact force of coming sensing tube far-end and organ with the sensor of magnetic induction, this sensor is subject to the interference of external magnetic field and distortion in application, the accuracy of measuring is subject to external interference, and this Technology Need is installed multiple Magnetic Sensors in the little space of conduit distal end, technology difficulty is large, and manufacturing cost is high.
In sum, be difficult at present the contact of Measurement accuracy ablation catheter and wall of the heart, be difficult to determine that whether the contact of ablation catheter and wall of the heart is suitable, be difficult to control ablation effect.
Therefore, need badly a kind of can Measurement accuracy ablation catheter and the technology of the contact of wall of the heart.
Summary of the invention
The purpose of this utility model is: for the problem of contact that is difficult at present Measurement accuracy ablation catheter and wall of the heart, provide a kind of can Measurement accuracy ablation catheter and the ablating device of the contact of wall of the heart.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of ablating device, there is the working end of stretching into body interior, it is characterized in that: described working end arranges at least two foil gauges, at least two described foil gauges layout that misplaces on the circumferencial direction of described working end, is provided with the groove connecting along described working end radial direction between the region of the corresponding working end of at least adjacent two foil gauges.
In this programme, at least be provided with in working end along two foil gauges of its circumferencial direction dislocation, so, the stress value that can measure according to all foil gauges determines that ablation catheter pastes the stressed of foil gauge place, the stress value that all foil gauges are measured is as one group of stress data group, so, the stressed difference of ablation catheter, ablation catheter crooked radian difference, stress data group is also just different, that is to say, stress data group and conduit stress value are one-to-one relationships, between the region of the corresponding working end of at least adjacent two foil gauges, be provided with the groove connecting along described working end radial direction, so, can allow ablation catheter deflection under identical stressing conditions larger, can allow the foil gauge being arranged on elastic component test sensitiveer reliable, so, can determine more accurately that whether the contact of ablation catheter and wall of the heart is suitable.
In the time implementing this programme, first obtain the stress data group of ablation catheter in the time of various pressure and various bending direction, every group of stress data comprises the stress value composition of all foil gauges, contain positive and negative, being organized into database by corresponding relation and being stored in equipment of data will be obtained, measuring, ablation catheter is stressed, when bending direction and crooked radian, search in database according to stress data group, according to uniqueness, one group of stress data group can only find a corresponding power in database, bending direction and crooked radian match, so, just can realize ablation catheter pressure, accurately measuring of bending direction and crooked radian, whether the contact that can determine ablation catheter and wall of the heart is suitable, can control more easily ablation effect.
As preferably, described working end is provided with elastic component, at least two described foil gauges are arranged on described elastic component, between the region of the corresponding working end of at least adjacent two foil gauges, be provided with the groove connecting along described working end radial direction, described elastic component raw material are stainless steel or Nitinol, so, can allow ablation catheter bend by pressure and can fast return after stressed removal to nature, simultaneously, can allow ablation catheter deflection under identical stressing conditions larger, can allow the foil gauge being arranged on elastic component test sensitiveer reliable, so, can determine more accurately that whether the contact of ablation catheter and wall of the heart is suitable.
Elastic component adopts stainless steel to make, and mainly considers that its cost of material is cheap, and elastic component after making has favorable elasticity, can meet the primary demand of stress test; Further, elastic component adopts Nitinol to make, Nitinol is a kind of marmem, the plastic deformation of self automatically can be reverted under a certain specified temp to the special alloy of original-shape, the expansion and contraction of Nitinol is high, reach high fatigue life, damping characteristic exceeds many times than common spring, its corrosion resistance is better than many medical stainless steels, there is good elasticity, so, can further strengthen the elasticity of elastic component, increase the sensitivity of foil gauge dynamometry, make the measurement of power and bending direction more accurate.
As preferably, on described elastic component circumferencial direction, interval angle 270 ° >=a >=90 ° of the symmetrical centre of two adjacent foil gauges of spacing distance maximum on described elastic component circumferencial direction, between the region of elastic component corresponding to these two foil gauges, be provided with described groove, especially, at described elastic component circumferencial direction, the size of described groove equals the spacing distance of these two foil gauges, the interval angle of the foil gauge of narrating in this patent: the working end of whole conduit is in line, in the projection of the plane perpendicular to described conduit working end axis, the center of circle angle of foil gauge symmetrical centre taking the subpoint of conduit working end axis as the center of circle, and, two foil gauges are provided with without any foil gauge.
Adopt such scheme, can further strengthen the elasticity of elastic component, increase the sensitivity of foil gauge dynamometry, make the measurement of power and bending direction more accurate.
As preferably, on described elastic component, be provided with three foil gauges, on described elastic component circumferencial direction, the interval angle b=45 of the symmetrical centre of two adjacent described foil gauges on described elastic component circumferencial direction ° or b=60 ° or b=90 °, interval angle homogeneous phase on described elastic component circumferencial direction of foil gauge and these two described foil gauges etc. described in another, between at least two adjacent foil gauges, be provided with described groove, especially, between two adjacent foil gauges, be provided with described groove, that is to say, be provided with three described grooves, so, can further strengthen the elasticity of elastic component, increase the sensitivity of foil gauge dynamometry, make the measurement of power and bending direction more accurate.
As preferably, on described elastic component, be provided with three foil gauges, on described elastic component circumferencial direction, the interval angle b=45 of the symmetrical centre of two adjacent described foil gauges on described elastic component circumferencial direction ° or b=60 ° or b=90 °, described in another foil gauge and these two described foil gauges in an interval angle on described elastic component circumferencial direction equal b, between at least two adjacent foil gauges, be provided with described groove, especially, between two adjacent foil gauges, be provided with described groove, that is to say, be provided with three described grooves, so, can further strengthen the elasticity of elastic component, increase the sensitivity of foil gauge dynamometry, make the measurement of power and bending direction more accurate.
As preferably, on described elastic component, be provided with three foil gauges, on described elastic component circumferencial direction, the interval angle b=120 ° of the symmetrical centre of three described foil gauges on described elastic component circumferencial direction, between at least two adjacent foil gauges, be provided with described groove, especially, between two adjacent foil gauges, be provided with described groove, that is to say, be provided with three described grooves, so, can further strengthen the elasticity of elastic component, increase the sensitivity of foil gauge dynamometry, make the measurement of power and bending direction more accurate.
As preferably, on described elastic component, be provided with four foil gauges, at described elastic component circumferencial direction, the interval angle b=90 ° of the symmetrical centre of four described foil gauges on described elastic component circumferencial direction, between at least two adjacent foil gauges, be provided with described groove, especially, between two adjacent foil gauges, be provided with described groove, that is to say, be provided with four described grooves, so, can further strengthen the elasticity of elastic component, increase the sensitivity of foil gauge dynamometry, make the measurement of power and bending direction more accurate.
As preferably, at least two foil gauges are arranged in described working end axis direction mistake, so, can further strengthen the elasticity of elastic component, increase the sensitivity of foil gauge dynamometry, make the measurement of power and bending direction more accurate.
As preferably, described foil gauge all disposes secondary foil gauge, and described secondary foil gauge is in order to eliminate the temperature error of described foil gauge. The temperature error of foil gauge is main because temperature can produce additional strain to working strain gauge, make to have error between test and actual value, therefore, need to increase secondary foil gauge, be arranged near the foil gauge for test force, make secondary foil gauge only test the distortion causing due to variations in temperature, so, the distortion that adopts foil gauge to measure deducts the distortion that secondary foil gauge measures, can obtain foil gauge and get rid of the numerical value comparatively accurately after temperature impact, and position more approaches foil gauge, foil gauge test effect effect is better.
As preferably, on described elastic component, be provided with Magnetic Sensor, described Magnetic Sensor is arranged in magnetic field, so, can accurately determine the particular location of conduit at heart, can accurately determine whether the residing position of ablation catheter is set ablation locations, so, can further strengthen and adopt the application's ablating device to carry out the ablation effect of ablative surgery.
As preferably, after described ablating device coordinates with sheath pipe, the sweep of described ablating device is guiding-tube bend section, the end face of the working end of described ablating device to described guiding-tube bend section is conduit free segment, other parts of the working end of described ablating device are the nearly means of conduit, described free segment, described bending section and described nearly means all arrange at least one ring electrode, and described ring electrode is arranged in electric field.
This programme so designs, its can be real-time the guiding-tube bend section of definite ablation catheter, the nearly means of conduit free segment and conduit are at the particular location of heart, that is to say, the curved shape that shows ablation catheter on screen that can be real-time, so, whether whether the conduit free segment that just can determine ablation catheter vertical with the atrial septum face of fossa ovalis, that is to say, puncture needle can be with the direction puncture atrial septum face vertical with atrial septum face, so, in the time of puncture, do not need to use traditional X ray to develop to determine that whether the conduit free segment of ablation catheter is vertical with atrial septum face, can in improving puncture success rate, reduce the radiation injury of X ray to patient and medical personnel.
In sum, owing to having adopted technique scheme, the application's beneficial effect is:
1, can accurately determine the contact force of ablation catheter and tissue, therefore can accurately judge whether contact force is applicable to melting;
2, can accurately determine bending direction and the crooked radian of ablation catheter;
The beneficial effect of other embodiments of the application is: further strengthen the accuracy of the application's ablating device test pressure, bending direction and crooked radian, and, can strengthen the function of the application's ablating device.
Brief description of the drawings
Fig. 1 is the application's structural representation;
Fig. 2 is the structural representation of the application's elastic component;
Fig. 3 is the structural representation after foil gauge coordinates with elastic component;
Fig. 4 is the profile after foil gauge coordinates with elastic component;
Fig. 5 is the profile after foil gauge coordinates with elastic component;
Fig. 6 is the profile after foil gauge coordinates with elastic component;
Fig. 7 is the profile after foil gauge coordinates with elastic component;
Mark in figure: 1-elastic component, 11-groove, 2-foil gauge, the secondary foil gauge of 21-, 4-flexible pipe body, 5-Magnetic Sensor, 6-ring electrode, 61-tip electrodes, 7-fill orifice, 8-intrusion pipe, 9-temperature sensor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of ablating device, there is the working end of stretching into body interior, end, described working end arranges tip electrodes 61, tip electrodes 61 is cylindric, one end is designed for obtuse, the other end is fixedly connected with elastic component 1, elastic component 1 is elastic tube, described elastic component 1 is wrapped with flexible pipe body 4, can be by foil gauge and tissue isolation, can strengthen security and the operating performance of the application's ablating device, flexible pipe body 4 can be bellows, its external diameter is identical with the external diameter of tip electrodes 61, elastic component 1 is arranged in the inner chamber of flexible pipe body 4, in the inner chamber of elastic component 1, place intrusion pipe 8, in order to by eliminating medicine liquid and wire, foil gauge 2 grades separate, eliminating medicine liquid can be guided to fill orifice 7 simultaneously, in tip electrodes 61, be provided with temperature sensor 9, the situation melting with Real-time Feedback in order near the tissue temperature detecting ablation catheter end.
And, in use, after the application's ablating device coordinates with sheath pipe, the sweep of the application's ablating device is guiding-tube bend section, the end face of the working end of the application's ablating device to described guiding-tube bend section is conduit free segment, other parts of the working end of the application's ablating device are the nearly means of conduit, and described free segment, described bending section and described nearly means all arrange at least one ring electrode 6, and described ring electrode 6 is arranged in electric field.
In addition, on elastic component 1, be provided with Magnetic Sensor 5, described Magnetic Sensor 5 is arranged in magnetic field, so, can accurately determine the particular location of conduit at heart, can accurately determine whether the residing position of ablation catheter is set ablation locations, so, can further strengthen and adopt the application's ablating device to carry out the ablation effect of ablative surgery.
As (1) in Fig. 2 and Fig. 3 and Fig. 4, Fig. 2 and Fig. 3 observe elastic component 1 from two different angles, (1) in Fig. 4 is the cutaway view of elastic component 1 perpendicular to its axis, the inner cylindrical hole for connecting of elastic component 1, profile is hexahedron, incline is all by fillet, three sides of elastic component 1 are respectively arranged with a described foil gauge 2, three foil gauges 2 layout that misplaces on the circumferencial direction of described working end, the working end circumferencial direction is here also the circumferencial direction of elastic component 1, between the region of the elastic component 1 of adjacent foil gauge 2 correspondences, be provided with the groove 11 connecting along elastic component 1 radial direction, as (1) in Fig. 4, have three grooves 11, be provided with the elastic component 1 of groove 11 as shown in Figures 2 and 3, groove 11 is set on elastic component 1, can increase the elasticity of elastic component 1, increase the deformation quantity that near the region of groove 11 is set on elastic component 1, can improve the deflection of foil gauge 2, so, can allow test more accurate, and, the raw material of elastic component 1 can be Nitinol or stainless steel, can further strengthen the elasticity of elastic component 1, further improve the accuracy of test.
As shown in Figure 3, foil gauge 2 all disposes secondary foil gauge 21, and secondary foil gauge 21 is in order to eliminate the temperature error of foil gauge 2. The temperature error of foil gauge 2 is main because temperature can produce additional strain to working strain gauge, make to have error between test and actual value, therefore, need to increase secondary foil gauge 21, be arranged near the foil gauge 2 for test force, make secondary foil gauge 21 only test the distortion causing due to variations in temperature, so, the distortion that adopts foil gauge 2 to measure deducts the distortion that secondary foil gauge measures, can obtain foil gauge 2 and get rid of the numerical value comparatively accurately after temperature impact, and position more approaches foil gauge 2, it is better that foil gauge 2 is tested effect effect.
As shown in Figure 4, that elastic component 1 is along the cutaway view perpendicular to its axis, in Fig. 1, on conduit circumferencial direction, namely on the circumferencial direction of elastic component 1, foil gauge 2a and foil gauge 2b interval angle b=90 °, foil gauge 2c and foil gauge 2b interval angle b=90 °, foil gauge 2c and foil gauge 2a interval angle a=180 °, between elastic component 1 region of foil gauge 2 correspondences, be provided with groove 11, the width of groove 11 equals the spacing distance of adjacent foil gauge, so design, the elasticity that increases to greatest extent elastic component 1 on the basis of pasting three foil gauges 2 in the mode of fluting can met, and, three foil gauges 2 are set on elastic component 1, compared with two foil gauges 2 are set, increase a foil gauge 2, increase a test point, can further improve the accuracy of test.
As shown in (2) figure in Fig. 4, foil gauge 2a and foil gauge 2b interval angle b=90 °, foil gauge 2c and foil gauge 2b interval angle b=90 °, foil gauge 2c and foil gauge 2a, foil gauge 2c and the equal a=135 ° of foil gauge 2b interval angle, between elastic component 1 region of foil gauge 2 correspondences, be provided with groove 11, the width of groove 11 equals the spacing distance of adjacent foil gauge 2, so design, can meet the elasticity that increases to greatest extent elastic component 1 on the basis of pasting three foil gauges 2 in the mode of fluting.
In Fig. 4 (1), elastic component 1 profile is hexahedron, there are four sides, Fig. 4 (2) elastic component profile is the octahedral bodily form, have six sides, adopt hexahedron or the octahedra profile as elastic component 1, it can easily be fitted in foil gauge 2 on elastic component 1, and, make test more accurate; Certainly, the profile of elastic component 1 can be also cylindrical, and quantity, relative position and groove 11 positions of foil gauge 2 are all identical with Fig. 4 (1) or Fig. 4 (2), be only elastic component 1 profile difference, adopt columniform elastic component 1, convenient processing, low cost of manufacture.
As shown in Figure 5, foil gauge 2a and foil gauge 2b interval angle b=45 °, in the drawings, foil gauge 2a and foil gauge 2c interval angle a=270 °, instead of interval angle a=90 °, the described interval angle of the application's full text all refers to the interval angle of adjacent foil gauge 2, the angle that does not have other foil gauges 2 to separate in the middle of, therefore, in Fig. 1, foil gauge 2a and foil gauge 2c interval angle a=270 °; In Fig. 2, foil gauge 2c and foil gauge 2a, foil gauge 2c and the equal a=157.5 ° of foil gauge 2b interval angle.
As shown in Fig. 5 (1) or Fig. 5 (2), between elastic component 1 region of foil gauge 2 correspondences, be provided with groove 11, the width of groove 11 equals the spacing distance of adjacent foil gauge 2, so design, the elasticity that increases to greatest extent elastic component 1 on the basis of pasting three foil gauges 2 in the mode of fluting can met, and elastic component 1 profile is cylindrical, can conveniently process low cost of manufacture; Elastic component 1 profile is polyhedron, and foil gauge 2 is arranged on polyhedral side, foil gauge 2 can easily be fitted on elastic component 1, makes test more accurate.
As shown in Figure 6, foil gauge 2a and foil gauge 2b interval angle b=60 °, in the drawings, foil gauge 2a and foil gauge 2c interval angle a=240 °; In Fig. 2, foil gauge 2c and foil gauge 2a, foil gauge 2c and the equal a=150 ° of foil gauge 2b interval angle.
As shown in Fig. 6 (1) or Fig. 5 (2), between elastic component 1 region of foil gauge 2 correspondences, be provided with groove 11, the width of groove 11 equals the spacing distance of adjacent foil gauge 2, so design, the elasticity that increases to greatest extent elastic component 1 on the basis of pasting three foil gauges 2 in the mode of fluting can met, and elastic component 1 profile is cylindrical, can conveniently process low cost of manufacture; Elastic component 1 profile is polyhedron, and foil gauge is arranged on polyhedral side, foil gauge can easily be fitted on elastic component 1, makes test more accurate.
As shown in Fig. 7 (1) or Fig. 7 (2), foil gauge 2a and foil gauge 2b, foil gauge 2a and foil gauge 2c interval angle equate, in Fig. 7 (1), foil gauge 2a and foil gauge 2b, foil gauge 2a and foil gauge 2c interval angle b=120 °, in Fig. 7 (1), foil gauge 2a and foil gauge 2b, foil gauge 2a and foil gauge 2c interval angle b=90 °.
As shown in Fig. 6 (1) or Fig. 5 (2), between the elastic component region of foil gauge 2 correspondences, be provided with groove 11, the width of groove 11 equals the spacing distance of adjacent foil gauge, so design, the elasticity that increases to greatest extent elastic component 1 on the basis of pasting three foil gauges in the mode of fluting can met, and, elastic component 1 profile is polyhedron, foil gauge 2 is arranged on polyhedral side, foil gauge 2 can easily be fitted on elastic component 1, make test more accurate; In addition, elastic component 1 profile can be cylindrical, can conveniently process low cost of manufacture.
Especially, at elastic component 1 axis direction, the size of groove 11 equals the size of foil gauge 2, more particularly, the center of groove 11 center and foil gauge 2 is on the same cross section of elastic component 1, and this cross section is perpendicular to the axis of elastic component 1, so, the region that foil gauge 2 is fitted is the larger region of deflection on elastic component 1, can further improve the accuracy of test.
Especially, at elastic component 1 axis direction, there are multiple grooves 11, can further increase the elasticity of elastic component 1, further improve the accuracy of test.
In the time implementing this programme, first obtain the stress data group of ablation catheter in the time of various pressure and various bending direction, every group of stress data comprises the stress value composition of all foil gauges 2, contain positive and negative, being organized into database by corresponding relation and being stored in equipment of data will be obtained, measuring, ablation catheter is stressed, when bending direction and crooked radian, search in database according to stress data group, according to uniqueness, one group of stress data group can only find a corresponding power in database, bending direction and crooked radian match, so, just can realize ablation catheter pressure, accurately measuring of bending direction and crooked radian, whether the contact that can determine ablation catheter and wall of the heart is suitable, can control more easily ablation effect.
All any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (14)
1. an ablating device, there is the working end of stretching into body interior, it is characterized in that: described working end arranges at least two foil gauges, at least two described foil gauges layout that misplaces on the circumferencial direction of described working end, is provided with the groove connecting along described working end radial direction between the region of the corresponding working end of at least adjacent two foil gauges.
2. ablating device according to claim 1, it is characterized in that: described working end is provided with elastic component, at least two described foil gauges are arranged on described elastic component, between the region of the corresponding working end of at least adjacent two foil gauges, are provided with the groove connecting along described working end radial direction.
3. ablating device according to claim 2, it is characterized in that: on described elastic component circumferencial direction, interval angle 270 ° >=a >=90 ° of the symmetrical centre of two adjacent described foil gauges of spacing distance maximum on described elastic component circumferencial direction are provided with described groove between the region of elastic component corresponding to these two foil gauges.
4. ablating device according to claim 3, it is characterized in that: on described elastic component, be provided with three foil gauges, on described elastic component circumferencial direction, the symmetrical centre of two adjacent described foil gauges is interval angle b=45 ° or b=60 ° or b=90 ° on described elastic component circumferencial direction, described in another, interval angle homogeneous phase of foil gauge and these two described foil gauges etc., is provided with described groove between at least two adjacent foil gauges.
5. ablating device according to claim 3, it is characterized in that: on described elastic component, be provided with three foil gauges, on described elastic component circumferencial direction, the symmetrical centre of two adjacent described foil gauges is interval angle b=45 ° or b=60 ° or b=90 ° on described elastic component circumferencial direction, described in another foil gauge and these two described foil gauges in the interval angle of equal b, between at least two adjacent foil gauges, be provided with described groove.
6. ablating device according to claim 3, it is characterized in that: on described elastic component, be provided with three foil gauges, on described elastic component circumferencial direction, the symmetrical centre of three described foil gauges is interval angle b=120 ° on described elastic component circumferencial direction, between at least two adjacent foil gauges, is provided with described groove.
7. ablating device according to claim 3, it is characterized in that: on described elastic component, be provided with four foil gauges, on described elastic component circumferencial direction, the symmetrical centre of four described foil gauges is interval angle b=90 ° on described elastic component circumferencial direction, between at least two adjacent foil gauges, is provided with described groove.
8. according to the ablating device described in claim 1～7 any one, it is characterized in that: at least two foil gauges are arranged in described working end axis direction mistake.
9. according to the ablating device described in claim 2～7 any one, it is characterized in that: described elastic component is wrapped with flexible pipe body.
10. according to the ablating device described in claim 1～7 any one, it is characterized in that: described foil gauge all disposes secondary foil gauge, described secondary foil gauge is in order to eliminate the temperature error of described foil gauge.
11. ablating devices according to claim 8, is characterized in that: described foil gauge all disposes secondary foil gauge, and described secondary foil gauge is in order to eliminate the temperature error of described foil gauge.
12. ablating devices according to claim 9, is characterized in that: described foil gauge all disposes secondary foil gauge, and described secondary foil gauge is in order to eliminate the temperature error of described foil gauge.
13. ablating devices according to claim 12, is characterized in that: on described elastic component, be provided with Magnetic Sensor, described Magnetic Sensor is arranged in magnetic field.
14. ablating devices according to claim 13, it is characterized in that: after described ablating device coordinates with sheath pipe, the sweep of described ablating device is guiding-tube bend section, the end face of the working end of described ablating device to described guiding-tube bend section is conduit free segment, other parts of the working end of described ablating device are the nearly means of conduit, described free segment, described bending section and described nearly means all arrange at least one ring electrode, and described ring electrode is arranged in electric field.
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| CN201520981862.7U CN205234628U (en) | 2015-12-01 | 2015-12-01 | Ablation apparatus |
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| CN201520981862.7U CN205234628U (en) | 2015-12-01 | 2015-12-01 | Ablation apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106264719A (en) * | 2016-07-29 | 2017-01-04 | 上海微创电生理医疗科技股份有限公司 | Electrophysiologicalcatheter catheter |
| 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 |
| CN106974724A (en) * | 2017-04-24 | 2017-07-25 | 四川锦江电子科技有限公司 | A kind of ablation catheter with pressure detecting function |
| EP3292831A1 (en) | 2016-09-12 | 2018-03-14 | Biosense Webster (Israel), Ltd. | Ablation catheter with strain gauges |
| US11911093B2 (en) | 2016-09-12 | 2024-02-27 | Biosense Webster (Israel) Ltd. | Irrigation system for a catheter |
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| 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 |
| CN106264719A (en) * | 2016-07-29 | 2017-01-04 | 上海微创电生理医疗科技股份有限公司 | Electrophysiologicalcatheter catheter |
| WO2018019077A1 (en) * | 2016-07-29 | 2018-02-01 | 上海微创电生理医疗科技股份有限公司 | Electrophysiology catheter |
| CN106264719B (en) * | 2016-07-29 | 2019-07-23 | 上海微创电生理医疗科技股份有限公司 | Electrophysiologicalcatheter catheter |
| CN110063788A (en) * | 2016-07-29 | 2019-07-30 | 上海微创电生理医疗科技股份有限公司 | Pressure sensor and electrophysiologicalcatheter catheter |
| US20190307504A1 (en) * | 2016-07-29 | 2019-10-10 | Shanghai Microport Ep Medtech Co., Ltd. | Electrophysiology catheter |
| US10932852B2 (en) * | 2016-07-29 | 2021-03-02 | Shanghai Microport Ep Medtech Co., Ltd. | Electrophysiology catheter |
| EP3292831A1 (en) | 2016-09-12 | 2018-03-14 | Biosense Webster (Israel), Ltd. | Ablation catheter with strain gauges |
| JP2018043006A (en) * | 2016-09-12 | 2018-03-22 | バイオセンス・ウエブスター・（イスラエル）・リミテッドＢｉｏｓｅｎｓｅ Ｗｅｂｓｔｅｒ （Ｉｓｒａｅｌ）， Ｌｔｄ． | Ablation catheter with strain gauges |
| JP7051341B2 (en) | 2016-09-12 | 2022-04-11 | バイオセンス・ウエブスター・（イスラエル）・リミテッド | Resection catheter with strain gauge |
| US11911093B2 (en) | 2016-09-12 | 2024-02-27 | Biosense Webster (Israel) Ltd. | Irrigation system for a catheter |
| CN106974724A (en) * | 2017-04-24 | 2017-07-25 | 四川锦江电子科技有限公司 | A kind of ablation catheter with pressure detecting function |
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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: 610045 Sichuan city of Chengdu province Wuhou District three Vuko East Road No. 5 Patentee before: SICHUAN JINJIANG ELECTRONIC SCIENCE AND TECHNOLOGY Co.,Ltd. |