Utility model content
Main purpose of the present utility model is to provide a kind of mapping catheter and the mapping catheter component with which, to solveThe problem being accurately positioned of lesions position of the prior art.
To achieve these goals, according to one side of the present utility model, this utility model is led there is provided a kind of mappingPipe, including：Arc pipeline section, the first end of arc pipeline section is blind end；Connection pipeline section, the second end of arc pipeline section be connected pipeline sectionFirst end be connected, arc pipeline section has a first passage, and connection pipeline section has second channel, first passage and second channel phaseConnection；Multiple first ring electrodes, multiple first ring electrodes are spaced apart and arranged on arc pipeline section；Magnetic Sensor, Magnetic Sensor setPut in second channel and be located at the first end of connection pipeline section.
Further, connect pipeline section also include isolation structure, isolation structure along connection pipeline section axial direction extend with willFirst passage is divided into the first separate subchannel and the second subchannel, and Magnetic Sensor is arranged in the second subchannel, withThe wire of each first ring electrode connection passes through from the first subchannel.
Further, mapping catheter also includes the second ring electrode and the 3rd ring electrode, the second ring electrode and the 3rd ring electrodeThe first end of connection pipeline section is spaced apart and arranged in, Magnetic Sensor is located between the second ring electrode and the 3rd ring electrode.
Further, the second ring electrode and the 3rd ring electrode are development ring electrode.
Further, mapping catheter also includes hitch structure, and the first end of hitch structure is arranged on the first of connection pipeline sectionEnd is simultaneously connected with the inwall for being connected pipeline section.
Further, with respect to the 3rd ring electrode near arc pipeline section, the first end of hitch structure is arranged on the second ring electrodeBetween second end of the 3rd ring electrode and connection pipeline section.
Further, hitch structure is arranged in the second subchannel, and the second end of hitch structure is drawn from the second subchannelGo out.
Further, Magnetic Sensor includes spiral helicine wire coil and the magnetic conductance being arranged in spiral helicine wire coilBody, wire coil are made of copper, and the surface of copper has insulating barrier.
Further, mapping catheter also includes the supporting member being arranged in first passage, and arc pipeline section is helical form,Support component is the helical form being adapted with the shape of arc pipeline section.
According to other side of the present utility model, this utility model additionally provides a kind of mapping catheter component, including markConduit and the magnetic field generator being engaged with mapping catheter are surveyed, mapping catheter is above-mentioned mapping catheter.
Using the technical solution of the utility model, when being accurately positioned of focus is carried out using mapping catheter, on the one hand, adoptThe detection mode of the first ring electrode on arc pipeline section of the prior art carries out the positioning of focus；On the other hand, passed by magneticSensor is accurately positioned to lesions position, and said structure is combined using the first ring electrode positioning and Magnetic Sensor positioningMode is positioned to focus, so can accurately determine the position of focus.The technical solution of the utility model is effectively solvedDetermine the problem being accurately positioned of lesions position of the prior art.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phaseMutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing this utility model in detail.
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless anotherIndicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical fieldThe identical meanings of understanding.
For the ease of description, space relative terms can be used here, such as " ... on ", " ... top "," in ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spyThe spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figureOutside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devicesTo be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), andAnd respective explanations are made to the relative description in space used herein above.
Now, it is more fully described with reference to the accompanying drawings according to illustrative embodiments of the present utility model.However, these showExample property embodiment can be implemented by many different forms, and should not be construed to be limited solely to reality set forth hereinApply mode.It should be appreciated that these embodiments are provided so that disclosure of the present utility model is thoroughly and complete, andThe design of these illustrative embodiments is fully conveyed to into those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity,Expand the thickness in layer and region, and make to be presented with like reference characters identical device, thus by omit to theyDescription.
As shown in Figures 1 to 4, the mapping catheter of the present embodiment includes：Arc pipeline section 10, connection pipeline section 20, multiple firstRing electrode 50 and Magnetic Sensor 30.The first end of arc pipeline section 10 is blind end.Second end of arc pipeline section 10 be connected pipeline section20 first end is connected, and arc pipeline section 10 has first passage 100, and connection pipeline section 20 has second channel 200, first passage100 are connected with second channel 200.Multiple first ring electrodes 50 are spaced apart and arranged on arc pipeline section 10.Magnetic Sensor 30 setsPut in second channel 200 and be located at the first end of connection pipeline section 20.
Using the technical scheme of the present embodiment, when being accurately positioned of focus is carried out using mapping catheter, on the one hand, using existingThe detection mode of the first ring electrode 50 having on the arc pipeline section 10 in technology carries out the positioning of focus；On the other hand, by magneticSensor 30 is accurately positioned to lesions position, and said structure is positioned using the positioning of the first ring electrode 50 and Magnetic Sensor 30The mode for combining is positioned to focus, so can accurately determine the position of focus.The technical scheme of the present embodiment hasBeing accurately positioned for lesions position of the prior art is solved the problems, such as effect.
As shown in figure 3, in the technical scheme of the present embodiment, connection pipeline section 20 also includes isolation structure 21, isolation structure21 extend for first passage 100 to be divided into the first separate subchannel 201 and the along the axial direction of connection pipeline sections 20Two subchannels 202, Magnetic Sensor 30 are arranged in the second subchannel 202, and the wire being connected with each first ring electrode 50 is from firstPass through in subchannel 201.Said structure causes the wire of Magnetic Sensor 30 and each first ring electrode 50 respectively in different passagesIt is interior, it is isolated by isolation structure 21, which reduces interfering for Magnetic Sensor 30 and each first ring electrode 50, above-mentioned knotStructure further increases the accuracy of the measurement lesions position of mapping catheter.Specifically, the end of the first ring electrode 50 can beThe circumference of arc pipeline section 10 is set in, such first ring electrode 50 is easily worked.
Specifically, isolation structure 21 can include flat beams (slab construction), and connection pipeline section 20 can include being mutually adaptedTwo G types, wherein, the arc middle setting flat beams of two G types specifically, the arc and plate-like structure of G type structures pointThe opposite sides of flat beams is not arranged on, this ensure that the cooperation of two G types is consolidated.
As shown in Figure 1 to Figure 3, in the technical scheme of the present embodiment, mapping catheter also includes the second ring electrode 61 and theThree ring electrodes 62, the second ring electrode 61 and the 3rd ring electrode 62 are spaced apart and arranged in the first end of connection pipeline section 20, Magnetic Sensor30 are located between the second ring electrode 61 and the 3rd ring electrode 62.Second ring electrode 61 and the 3rd ring electrode 62 are arranged on connection pipeline section20 first end, Magnetic Sensor 30 are also disposed at the first end for connecting pipeline section 20, and such Magnetic Sensor 30 is being close to lesions positionWhile and the first ring electrode 50 interference it is less.Specifically, the second ring electrode 61 and the 3rd ring electrode 62 are developing ring electricityPole.Such second ring electrode 61 and the 3rd ring electrode 62 can preferably show location.Two development ring electrodes are arrangedStable and fixed for relative position, developing ring can show out position, first on arc pipeline section 10 in the electric field of external loadRing electrode 50 is also synchronous to do developing ring, and electrode retaining collar and the developing ring of the distal end of arc pipeline section 10 can be whole in the electric field of external loadBody shows the relative position and shape of arc pipeline section 10, and the synchronous physical positioning plus Magnetic Sensor is further able to determine arcThe exact position of shape pipeline section.Specifically, the second ring electrode 61 and the 3rd ring electrode 62 can be to be set on connection pipeline section 20, onState structure setting easy.
As shown in Fig. 2 in the technical scheme of the present embodiment, mapping catheter also includes hitch structure 70, hitch structure 70First end be arranged on connection pipeline section 20 first end and be connected with the inwall for being connected pipeline section 20.When exerting a force to hitch structure 70When, connection pipeline section 20 deform with the pulling force of the applying of hitch structure 70, be so suitable for human organ shape it is manySample.Hitch structure 70 includes that the first end of draught line, i.e. draught line is connected with the inwall for being connected pipeline section 20.
Specifically, connect pipeline section 20 distal end occur bending and deformation with the pulling force of hitch structure 70, deformation it is mainDirection is two, and the outer surface of hitch structure 70 can coat antifriction layer, and antifriction layer can be made up of composites such as Teflons.
As shown in Figures 2 and 3, in the technical scheme of the present embodiment, 61 relative 3rd ring electrode 62 of the second ring electrode is leaned onNearly arc pipeline section 10, the first end of hitch structure 70 are arranged between the second end of the 3rd ring electrode 62 and connection pipeline section 20.WhenWhen being pulled back to hitch structure 70, hitch structure 70 causes connection pipeline section 20 to deform, specifically, deformation position hitch structure 70 withSecond end of the close connection pipeline section 20 of the junction of the inwall of connection pipeline section 20.Said structure is ensure that residing for Magnetic Sensor 30Position will not deform, the space of such Magnetic Sensor 30 is relatively fixed without interference with or damages Magnetic Sensor.SpecificallyGround, in Fig. 2, position of the arc pipeline section 10 in upside as connects the deformation that pipeline section 20 occurs in the presence of hitch structure 70.
As shown in figure 3, in the technical scheme of the present embodiment, hitch structure 70 is arranged in the second subchannel 202, tractionDraw from the second subchannel 202 at second end of structure 70.Due to the first ring electrode in the first subchannel 201, the second ring electricityThe lead of pole and the 3rd ring electrode is more, and the lead arranged in the second subchannel 202 is less, therefore hitch structure 70 is arranged onLess are affected on the components and parts in second channel during the second subchannel 202.The deflection of the control arc of hitch structure 70 pipeline section 10, itsPrinciple is that hitch structure 70 is riveted between the second end of the 3rd ring electrode 62 and connection pipeline section 20, when hitch structure 70 it is axially pastWhen 10 opposite direction of arc pipeline section is moved, due to softer inside the connection pipeline section 20 near towing point rear end, hitch structure 70 drivesArc pipeline section 10 is to curving, and then realizes that the deflection of arc pipeline section 10 is as shown in Figure 2.2 are dispersed with connection pipeline section 20Different size of first subchannel 201 and the second subchannel 202, wherein the second subchannel 202 is loculus near side, traction knotThrough the second subchannel 202, Magnetic Sensor 30 is arranged on the second subchannel, the wire of the first ring electrode 50 and the second ring electricity to structure 70The wire of the wire of pole 61 and the 3rd ring electrode 62 is through the first subchannel 201.
As shown in figure 3, in the technical scheme of the present embodiment, Magnetic Sensor 30 includes spiral helicine wire coil and settingMagnetic conductor in spiral helicine wire coil, wire coil are made of copper, and the surface of copper has insulating barrier.Said structure ensuresMagnetic Sensor 30 can effectively work.
As shown in figure 4, in the technical scheme of the present embodiment, mapping catheter also includes being arranged in first passage 100Supporting member 80, arc pipeline section 10 are helical form, and supporting member 80 is the helical form being adapted with the shape of arc pipeline section 10.ArcShape pipeline section 10 is made for the soft material of changeableness, and supporting member 80 can make arc pipeline section 10 form required shape.ArcThere is the first end of shape pipeline section 10 end to put damaged structure, and which is shaped as hemispherical or ellipse to guarantee in mapping not reasonTouch and injury tissue.8 to 16 first ring electrodes 50 are arranged on arc pipeline section 10 uniformly, each 50 correspondence of the first ring electrodeThe first ring electrode wire, the first ring electrode 50 by the signal for gathering by the wire transmission of the first ring electrode to back segment equipmentReason, the collection electricity physiological signal of the first ring electrode 50 are the two neighboring interelectrode electric potential difference of extraction, according to different tissues positionElectric potential difference is different and then judges the position of mapping different tissues and different electricity physiological signals.
In the technical scheme of the present embodiment, arc pipeline section 10 and connection pipeline section 20 could be arranged to many as neededLayer.Specifically, connect pipeline section 20 can be it is flexible, flexible, but be substantially incompressible along its length.EvenNozzle belt (can be referred to as catheter main body) can have any appropriate structure, and be made up of any appropriate material.ConnectionPipeline section 20 is multilamellar, and at least including undercoating and external coating, and the mesh grid with embedded rustless steel etc. is increasing connectionThe torsional rigidity of pipeline section 20 so that when operating control handle, connect pipeline section 20 deflectable section (connect pipeline section 20 and arcPipeline section 10 contacts the pipeline section of part) rotate in a corresponding manner.The external diameter of connection pipeline section is unimportant, it is preferred that not surpassingCross about 2.6mm.Similarly, as long as the thickness of undercoating and external coating meets needs, its thickness can change.Connection pipeline sectionDeflectable section of 20 (connects pipeline section 20 to contact with arc pipeline section 10 pipeline section of part, that is, the distal portion of connection pipeline section 20Point) tubular structure be similar to that connection 20 stage casing of pipeline section and proximal segment tubular structure, but connection pipeline section 20 distal endPart has bigger flexibility.Deflectable section has central chamber and multiple structure, and multiple structure at least includes undercoating, external coatingAnd the mesh grid of embedded rustless steel etc..The material for being suitable for connecting pipeline section 20 includes such material：Which has appropriatenessHeat deflection temperature so that connection pipeline section 20 distal end rigidity and thus its deflection characteristic will not insertion patient body inWhen changed due to temperature change.The material for being suitable for the undercoating and external coating of connection pipeline section 20 includes nylon elastic materialAnd polyurethane material.Connect the proximal segment of pipeline section 20 and stage casing is particularly suitable for undercoating and the material of external coating is included in aboutThe plastics of the relatively low Shore hardness in the range of 25-55D.
To realize the impermeability of the ray of some pipeline sections in connection pipeline section 20, about 25% sulphuric acid can be added in the coatingBarium.
Present invention also provides a kind of mapping catheter component, includes mark according to the embodiment of the mapping catheter component of the applicationConduit and the magnetic field generator being engaged with mapping catheter are surveyed, mapping catheter is above-mentioned mapping catheter.Such magnetic field generatorIt is more accurate with mapping catheter conjunction measuring lesions position.
In the technical scheme of the present embodiment (not shown in figure), magnetic field generator is multiple.Said structure causes magneticThe positioning of field generator and Magnetic Sensor 30 is more accurate.Specifically, in the technical scheme of the present embodiment, magnetic field generator is3.Magnetic Sensor 30 is disposed proximate to arc pipeline section 10, and stablizes indeformable region, and Magnetic Sensor 30 is usually magnetic coil,The outside of Magnetic Sensor 30 is provided with magnetic field generator, magnetic field generator can launch multiple magnetic fields, each magnetic field is sensed in magneticFaradic current can be produced on device 30, and feeding back to by wire carries out processing the position for Magnetic Sensor 30 being obtained in magnetic field in controllerPut, a magnetic field of transmitting is a plane spatially, and faradism flow valuve size is Magnetic Sensor 30 on this planeThe position on this plane of Magnetic Sensor 30 is can determine that, multiple magnetic fields are that multiple plane convergences can determine that Magnetic Sensor 30 existsSpatially particular location (x, y, z), enables mapping catheter more accurate mapping lesion tissue in ablation, by conduit mappingElectricity physiological signal can determine that lesion tissue position relative position, the absolute position tried to achieve using the signal of telecommunication is affected by environmentIt is larger, i.e., it is inaccurate, hence with the physics absolute position for determining mapping catheter, along with the target that the first ring electrode 50 is extractedThe relative position (with respect to conduit) of tissue (lesion tissue), you can be accurately positioned the physics absolute position of destination organization.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted rootAccording to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulativeIt is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bagInclude " when, which indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that specification and claims of the present utility model and the term " first " in above-mentioned accompanying drawing," second " etc. is for distinguishing similar object, without being used to describe specific order or precedence.It should be appreciated that soThe data for using can be exchanged in the appropriate case, so as to embodiment example of the present utility model described herein if to removeOrder beyond those for illustrating here or describing is implemented.Additionally, term " comprising " and " having " and theirs is anyDeformation, it is intended that cover it is non-exclusive includes, for example, contain the process of series of steps or unit, method, system, productProduct or equipment are not necessarily limited to those steps clearly listed or unit, but may include clearly not list or for thisA little other intrinsic steps of process, method, product or equipment or unit.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for thisFor the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principleWithin, any modification, equivalent substitution and improvements made etc. are should be included within protection domain of the present utility model.