CN205913392U - Radiofrequency ablation catheter with segment -shaped support structure and equipment thereof - Google Patents
Radiofrequency ablation catheter with segment -shaped support structure and equipment thereof Download PDFInfo
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- CN205913392U CN205913392U CN201590000029.8U CN201590000029U CN205913392U CN 205913392 U CN205913392 U CN 205913392U CN 201590000029 U CN201590000029 U CN 201590000029U CN 205913392 U CN205913392 U CN 205913392U
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
Abstract
The utility model provides the utility model relates to a radiofrequency ablation catheter of lamella form supporting structure includes the lamella form support (1) that is formed by the processing of same hollow tubular product, and lamella form support (1) includes the many spinal branchs frame silks (2) according to the circular distribution around the central axis to and one or two connecting pipes integrative with support silk (2). The length direction of every spinal branch frame silk (2) extends along the length direction of hollow tubular product, and distal end and the near -end that constitutes lamella form support (1) is gathered together respectively at the both ends of support silk (2), is provided with respectively in the interlude of every spinal branch frame silk (2) one or more electrode (4), and the interlude of lamella form support (1) has contraction state and extended mode. Lamella form support (1) among this radiofrequency ablation catheter is formed by the processing of same tubular product, and the elasticity is better to a plurality of arrangement of electrodes forms satisfy specific requirement when the extension adherence, all have good coverage to the vascular of different thicknesses and crooked blood vessel.
Description
Technical field
The present invention relates to a kind of radio frequency ablation catheter, more particularly, to a kind of radio-frequency (RF) ablation with flap supporting structure is led
Pipe, also relates to comprise the radio frequency ablation device of above-mentioned radio frequency ablation catheter, belongs to technical field of medical instruments.
Background technology
In radio frequency ablation system, radio-frequency electrode is for contact or near treated tissue and to carry out radio frequency energy
The Primary Component of amount release.Radio-frequency electrode is used for for radiofrequency signal changing into temperature field, by heat effect, tissue is carried out
Treatment.In operation process, the whether adherent therapeutic effect to radio-frequency ablation procedure of radio-frequency electrode has conclusive effect.
In radio frequency ablation catheter, radio-frequency electrode is arranged on the support of radio frequency ablation catheter front end, and support is used for carrying
Radio-frequency electrode, and extended adherent before radio frequency starts, radio frequency terminates after-contraction recession.Because radio-frequency ablation procedure is direct Jie
Enter and carry out in human vas, so the flexible size of support will be suitable for the diameter of human vas.
Blood in human body in pipe diameter is different because of the difference of ablation site, and the diameter of human vas also varies with each individual simultaneously,
, about between 2～10mm, difference is larger for human vas diameter.In prior art, the electrode tip of radio frequency ablation catheter flexible
Size is generally certain it is impossible to adapt to the diameter dimension of different human body blood vessel, the coverage rate to the human vas of different-diameter
Narrow.Therefore, when radio-frequency ablation procedure is carried out to different patients, it usually needs change different size, the radio-frequency (RF) ablation of model
Conduit is melted.Nonetheless, in some cases, when there is also operation, the problem that radio-frequency electrode cannot be simultaneously adherent,
Impact surgical effect.Therefore, if existing radio frequency ablation catheter can be improved so as to install the support of radio-frequency electrode
There is good expansion and contraction, thus strengthening its adaptability to blood vessel diameter, then just can cover different-diameter in operation
Blood vessel, improve equipment spreadability.
Additionally, existing radio frequency ablation catheter is generally poor to the adaptability of curved blood vessel, the radio-frequency (RF) ablation of the overwhelming majority
Electrode at all cannot be adherent in curved blood vessel for conduit.Therefore, if new radio frequency ablation catheter can improve to bending simultaneously
The spreadability of blood vessel, by the range of application of greatly extensive radio frequency ablation, and improves radio-frequency (RF) ablation effect simultaneously, radio frequency is disappeared
The popularization melting art has positive effect.
Content of the invention
Primary technical problem to be solved by this invention is to provide a kind of radio-frequency (RF) ablation with flap supporting structure to lead
Pipe.This radio frequency ablation catheter is respectively provided with good adaptability to different-diameter blood vessel and curved blood vessel, and spreadability is wider.
Another technical problem to be solved by this invention is to provide a kind of radio frequency comprising above-mentioned radio frequency ablation catheter to disappear
Melt equipment.
For realizing above-mentioned goal of the invention, the present invention adopts following technical proposals:
A kind of radio frequency ablation catheter with flap supporting structure, props up including by the flap that same hollow tube processes
Frame, described flap support includes the many scaffolding threads around central axis according to circular distribution, and and described scaffolding thread one
One or two connecting tubes；Wherein, the length direction of every scaffolding thread extends along the length direction of described hollow tube, institute
The described flap support of composition is gathered proximally and distally, respectively in the interlude of every described scaffolding thread in the two ends stating scaffolding thread
It is respectively arranged with one or more electrodes, the interlude of described flap support has contraction state and extended mode.
Wherein more preferably, the middle part of described tubing forms detached many scaffolding threads, and the two ends of described tubing are formed respectively
Two connecting tubes with described scaffolding thread one；Or, the middle part of described tubing forms detached many scaffolding threads, described tubing
One end formed and the connecting tube of described scaffolding thread one, the other end of described tubing forms the detached end of described scaffolding thread
End.
Wherein more preferably, described flap support also includes the center wire drawing being arranged at cental axial position, the wire drawing of described center
The far-end of one end and described flap support fix or pass the far-end of described flap support and be limited in described flap and prop up
The outside of frame, the other end proximally passes through after the center of described flap support, and the wire drawing of described center can be near with respect to described
End pulls described flap support vertically so as to outward expansion, and, the wire drawing of described center can be with respect to described flap support
Far-end sliding to described flap support.
Wherein more preferably, the scaffolding thread of described flap support is fixed to the contraction-like cylinder in intermediate cylindrical, two ends；Or
Person, the scaffolding thread of described flap support is fixed to the middle prominent, circle drum of two ends natural shrinking.
Wherein more preferably, the provided circumferentially about of described electrode has opening.
Wherein more preferably, the axis projection of multiple electrodes is not overlapping in the axial direction of described flap support.
Wherein more preferably, multiple described electrodes are in that straight line arranges in the periphery expanded view of described flap support
Or it is staggered to a plurality of straight line.
Wherein more preferably, described flap support is provided with lodging-prevention structure, and described lodging-prevention structure is integrally fixed at many
Lodging-prevention muscle on frame silk.
Wherein more preferably, the near-end of described flap support is connected with antipriming pipe, and one end of center wire drawing is fixed on described lobe
The far-end of shape support or be limited in described flap support the outside of far-end and can be with respect to the far-end of described flap support
Free sliding, the other end passes through the centre bore of antipriming pipe；Described scaffolding thread, thermocouple wire and radio frequency line, institute is worn in described electrode
The two ends stating electrode are separately fixed on described flap support, and one end of described thermocouple wire and described radio frequency line is fixed on described
In electrode, the other end passes through the corresponding aperture on antipriming pipe to be connected with external equipment.
Wherein more preferably, described radio frequency line and described thermocouple wire are fabricated to same silk material.
A kind of radio frequency ablation device, the control being connected with described radio frequency ablation catheter including above-mentioned radio frequency ablation catheter
Handle and radio-frequency (RF) ablation main frame.
The radio frequency ablation catheter that the present invention provides is using the flap support by same tubular object extruding.This flap support has
Have good retractility, and the arrangement form of electrode extend adherent after can meet specific requirement so that when flap is propped up
Frame extends with when pulled automatically in the Ink vessel transfusing of different-diameter, and multiple electrodes all can be all adherent, and multiple electrodes are in axle
Not overlapping upwards, do not result in excessive ablation.The retractility of this flap support preferably, to the spreadability of the blood vessel of different-diameter relatively
Extensively, the radio-frequency (RF) ablation that at least can meet 4～12mm blood vessel requires.Meanwhile, above-mentioned flap support also has relatively to curved blood vessel
Good spreadability.
Brief description
Fig. 1 is the structural representation of the flap support that the present invention provides；
Fig. 2 is the first arrangement schematic diagram of multi-electrode in the flap support that the present invention provides；
Fig. 3 is multi-electrode second arrangement schematic diagram in the flap support that the present invention provides；
Fig. 4 is the third arrangement schematic diagram of multi-electrode in the flap support that the present invention provides；
Fig. 5 is the structural representation arranging multiple electrodes in the flap support that the present invention provides on same scaffolding thread；
Fig. 6 is the schematic diagram of the first lodging-prevention structure in the flap support that the present invention provides；
Fig. 7 is the schematic diagram of second lodging-prevention structure in the flap support that the present invention provides；
Fig. 8 is three kinds of structural representations of electrode in the flap support that the present invention provides；
When Fig. 9 is that blood vessel is thinner, the adherent schematic diagram of movements of electrode in flap support；
When Figure 10 is that blood vessel is thicker, the adherent schematic diagram of movements of electrode in flap support.
Specific embodiment
With specific embodiment, detailed specific description is carried out to the technology contents of the present invention below in conjunction with the accompanying drawings.For ease of saying
Bright, the one end that below will be close to operator's (away from ablation site) is referred to as near-end, will be far from operator's (near ablation site)
One end is referred to as far-end.
As shown in figure 1, the radio frequency ablation catheter that the present invention provides includes being propped up by the flap that same hollow tube processes
Frame 1, flap support 1 extend in intravascular after profile be similar to lantern skeleton.Flap support 1 is included around central axis according to circle
Many scaffolding threads 2 of distribution, and one or two connecting tubes with scaffolding thread 2 one.Specifically, in flap support 1
In, the length direction of every scaffolding thread 2 extends along the length direction of hollow tube, and the two ends of all scaffolding threads 2 are gathered respectively
Constitute flap support 1 proximally and distally, be respectively arranged with one or more electricity in the interlude of every scaffolding thread 2
Pole 4 (referring to Fig. 1 and Fig. 5), the interlude of flap support has contraction state and two kinds of extended mode, and the interlude of scaffolding thread 2 exists
Can extend adherent in the tube chamber of ablation site.After flap support 1 extends adherent in intravascular, in the presence of blood vessel wall,
The middle part of flap support 1 forms a horizontal segment (referring to the b region of Fig. 1) with certain length, is arranged in scaffolding thread 2
Between electrode 4 in section good with blood vessel wall adhered state.
In the flap support 1 that the present invention provides, can arrange one or more multiple on every scaffolding thread
Electrode.Although in this technical scheme, the arrangement form of multiple electrodes does not need there is special shape, however, to ensure that
Multiple electrodes will not cause to blood vessel wall excessively to melt, and more preferably, the arrangement form that can make multiple electrodes is in flap support
Projection in axial direction meets nonoverlapping requirement.So when flap support extends in intravascular, no matter blood vessel diameter thickness is many
Individual electrode is not overlapping in the axial direction, all without causing the excessive ablation to blood vessel, it is to avoid damage blood vessel.
With reference to Fig. 2 to Fig. 5, to multiple electrodes, the concrete arrangement situation on scaffolding thread 2 is illustrated.
Three kinds of arrangement shapes in the periphery expanded view of flap support 1 for 6 electrodes are given, in figure in Fig. 2 to Fig. 4
In embodiment shown in 2 to Fig. 4, an electrode is fixed with every scaffolding thread of flap support 1.By 6 scaffolding threads 2 from upper
To under be labeled as #1 silk successively to #6 silk.In the embodiment shown in Figure 2,6 electrodes are sequentially distributed every from left to bottom right
In b area on root scaffolding thread, arrangement is in alignment；In shown in Fig. 3 and Fig. 4 two embodiment, 6 electrodes from upper left to
Bottom right is staggered, and is arranged in 2 straight lines.Although in above three embodiment, 6 electrodes are in the excircle of flap support
Spirality is arranged on face, but it is not intended that multiple electrodes needs are regularly arranged on the outer circumference surface of flap support,
In the embodiment that other do not provide concrete structure diagram, multiple electrodes can also be disorderly arranged in the expanded view of flap support,
Or it is arranged in other shapes.In actual ablative surgery, only need to be according to the single electrode location nerve neighbouring to it
Tissue carries out melting.
Additionally, in the flap support shown in Fig. 5, two electrodes are fixed with each scaffolding thread.And do not scheme at other
In the embodiment shown, plural multiple electrodes can also be arranged on each scaffolding thread.When setting on each scaffolding thread
During multiple electrodes, multiple electrodes are easy to overlapping (as shown in Figure 5) in the axial direction of flap support, set with respect to simple spiral
Put or be uniformly arranged and there may be certain risk, but this does not imply that, multiple electrodes can not be in the periphery of flap support
Projection and axis projection on overlap.That is, in flap support provided by the present invention, focusing principally on and emphasize to prop up
Frame silk is wholely set structure with the connecting tube being arranged on its both ends or one end, the quantity to fixing electrode on scaffolding thread and
Arrangement form does not have particular/special requirement.
The two ends of the flap support 1 that the present invention provides can all be closed it is also possible to one end closing, one end open, and it has
Body structure may refer to Fig. 6 and Fig. 7.In structure shown in Fig. 6, the closed at both ends of flap support 1.The middle part of tubing is through adding
Work forms detached many scaffolding threads 2, and the two ends of tubing form two connecting tubes with scaffolding thread 2 one respectively without processing
11.And in the structure shown in Fig. 7, one end closing of flap support 1, another end opening.The middle part of tubing is formed through processing
Detached many scaffolding threads 2, one end of tubing forms connecting tube 13a with scaffolding thread 2 one, and the other end of tubing is through processing
Form the end 13b separated from one another of scaffolding thread 2.In structure shown in Fig. 7, the end of scaffolding thread 2 gather but mutually not
It is connected, conveniently penetrate and electrode is set.One end of flap support 1 opening can be used as far-end, also can be as near-end, in assembling flap
During support, generally one end of flap support 1 opening setting union joint closed after again with miscellaneous part (such as antipriming pipe 7)
Assembled.
Above-mentioned flap support 1 is processed by same hollow tube naturally it is also possible to first be passed through by other section bars or bar
After processing obtains hollow tube, reprocessing forms.The circular pipe with memory function can be carried out add using artistic carving
Work, then expanding setting, thus forming detached scaffolding thread 2 at the middle part of tubing, and being formed in the one or both ends of scaffolding thread 2
Connecting tube with its one.In this integrally formed flap support, many scaffolding threads 2 have good mechanical property, prevent
Stop its lodging deformation；And, scaffolding thread 2 has good retractility, can extend adherent in the Ink vessel transfusing of different-diameter.Lobe
Shape support 1 can use the materials processing such as titanium alloy, memorial alloy, and flap support 1 can also be formed by processing of high molecular material.
During using hollow tube processing flap support, may be shaped process after scaffolding thread 2 molding, also may be used
Not carry out using after heat treatment direct-assembling.When scaffolding thread 2 is after sizing, intermediate cylindrical, two ends can be fixed to
Contraction-like cylinder；The middle prominent, circle drum of two ends natural shrinking can also be fixed to.Either cylindrical or round
The support of cydariform, after it extends adherent in intravascular, scaffolding thread can be deformed in the presence of blood vessel wall as shown in Figure 1
Shape, thus ensureing that the electrode being arranged on scaffolding thread interlude is adherent good.
In order to prevent scaffolding thread 2 from lodging after portion extends in intravascular, the present invention is additionally provided with flap support 1
Lodging-prevention structure, lodging-prevention structure has multiple, specifically refers to the lodging-prevention muscle being fixed on many scaffolding threads 2, by making
With lodging-prevention muscle, many scaffolding threads 2 are linked together, when flap support 1 extends it is ensured that scaffolding thread 2 outward expansion not
Lodging.In actual use, many lodging-prevention muscle can be arranged on a flap support 1.Lodging-prevention structure can be as Fig. 6
The shown oblique type lodging-prevention muscle 12 being fixed on many scaffolding threads 2 or as shown in Figure 7 be fixed on many scaffolding threads
V-shaped lodging-prevention muscle 14 on 2.However, it is desirable to explanation is although lodging-prevention muscle enhances flap support to a certain extent
Structural strength, but its length and gradient setting are likely to restrict to a certain extent the external scalability of flap support,
That is limiting flap support adaptable maximum blood vessel diameter, therefore, when designing lodging-prevention muscle, need to combine covering
Blood vessel scope, the length of appropriate design lodging-prevention muscle and gradient.
In order to electrode 4 is successfully arranged on scaffolding thread 2, the invention provides several electrode of different shapes 4, for example
The center of electrode 4 can open up circular hole, and the circumference of electrode 4 can also arrange opening.The 3 kinds of electrode shapes being given in Fig. 8 show
In example, two electrode centers circular holes of the side that keeps left are larger, are easier to be fixed on thermocouple wire 5 and radio frequency line 6 in assembling
Inside it, and right electrodes center does not open up circular hole, its inner space less it is more difficult to assembling.On the other hand, left electrodes circumference
On be not provided with opening, be only suitable to one end closing, the assembling of the flap support 1 of one end open, be unsuitable for closed at both ends and one
The flap support 1 of molding uses；And two electrodes on the right side have opening due to provided circumferentially about, ratio is well suited to closed at both ends
The assembling of flap support 1, can be used for the flap support 1 of one end open one end closing simultaneously.That is, when in one one-tenth
During the flap support 1 over-assemble electrode 4 of the closed at both ends of type, need using the electrode 4 having opening provided circumferentially about, thus side
Just electrode 4 is stuck on scaffolding thread 2, then by the two ends of electrode 4 are fixed on scaffolding thread 2, completes the setting of electrode 4.
Because the central space of electrode 4 is narrow and small, in actual assembled, the thermocouple wire being provided at its inner portion and radio frequency line can be fabricated to
Same silk material is fixed.
Additionally, in order to control flap support 1 to realize in intravascular shrinking or extending, in the cental axial position of flap support 1
It is additionally provided with center wire drawing 3.As shown in figure 1, one end of center wire drawing 3 is fixed on the connecting tube being arranged at flap support 1 far-end
Interior, the other end passes through and passes from the near-end of flap support 1 inside flap support 1, and, this center wire drawing passes through and flap support
The centre bore of the antipriming pipe 7 that 1 near-end connects extends on the joystick being arranged at catheter tip.Center wire drawing 3 is in external force
Effect is lower the near-end of flap support 1 and antipriming pipe 7 can to pull flap support 1, relatively vertically so that flap stent expansion becomes
Shape.When being subject to blood vessel wall extruding to shrink deformation through the flap support 1 of sizing in thinner Ink vessel transfusing, center wire drawing 3
Can be with automatic sliding；When externally to post-tensioning disorder of internal organs heart wire drawing 3, flap support 1 can occur to expand further, and its diameter becomes
Greatly, so that multiple electrodes can realize in the thicker Ink vessel transfusing of diameter adherent.Additionally, work as being pushed forward using external force from outside
During the wire drawing 3 of center, flap support 1 can be made to shrink, such that it is able to move the position of flap support 1 in intravascular or by flap
Support 1 is withdrawn from vitro from Ink vessel transfusing, in this moving process, can avoid the damage to blood vessel wall for the flap support 1.
Additionally, in embodiment (not shown), the far-end of center wire drawing can also be without the integrally formed company with flap support
Adapter is fixed, but is fixed together with the head end of radio frequency ablation catheter after passing the connecting tube of flap rack far end, thus in
The far-end of heart wire drawing is limited in the outside of the far-end of flap support；The near-end of center wire drawing pass through flap support inside and from
The center of the near-end of flap support passes.So, in this embodiment, center wire drawing can pull lobe vertically with respect to connecting tube
Shape support so as to outward expansion, meanwhile, center wire drawing can also with respect to connecting tube and far-end from flap support to flap support
Free sliding.
With reference to Fig. 1, Fig. 9 and Figure 10, the retractility of the flap support through sizing is introduced.Lobe when closure
Shape support can occur natural extension after stretching out in sheath, as shown in Figure 1 it is assumed that initially outer after flap support 1 natural extension
The a diameter of amm in side.When ablation vessels diameter is less than amm, as shown in figure 9, flap support 1 is subject to during automatic expansion
The extruding of blood vessel wall, now, each electrode 4, under extruding force f of blood vessel wall acts on, is realized completely adherent, contact condition is good.
And when ablation vessels are with diameter greater than during equal to amm, flap support does not completely attach to blood vessel wall after natural extension, such as Figure 10
Shown, by applying pulling force f2 to outside pulling center wire drawing 3, flap support 1 length reduction, the outside bulging of scaffolding thread 2, in expansion
The state of opening；In this process, electrode 4 moves to blood vessel wall direction, and is done step-by-step adherent, contacts well with blood vessel wall.
Flap support used in the radio frequency ablation catheter that the present invention provides, determines except using above-mentioned process before assembling
Outside the support that type is processed, can also be using the support that scaffolding thread was not done with heat treatment before assembling.For this kind without
The flap support of heat treatment, when radio frequency ablation catheter stretches out in sheath, flap support cannot natural extension, now by
The wire drawing of pulling center is it is also possible to guarantee that the multiple electrodes being arranged on interlude are simultaneously adherent, and, pastes in flap stent expansion
After wall, the axis projection of multiple electrodes is not overlapping in the axial direction of flap support, and the circumference projection of multiple electrodes is uniformly distributed in
On the circumferential section of flap support.
Additionally, as shown in figure 1, in the radio frequency ablation catheter that the present invention provides, also including antipriming pipe 7, antipriming pipe 7 and lobe
The near-end of shape support connects；It is fixed on the far-end of flap support in one end of the center wire drawing 3 of the inside of flap support setting, separately
One end passes through the near-end of flap support and the centre bore of antipriming pipe 7, extends to outside conduit, is connected with joystick.At each
It is equipped with scaffolding thread 2, thermocouple wire 5 and radio frequency line 6, the two ends of electrode 4 are separately fixed on scaffolding thread 2, thermocouple in electrode 4
One end of silk 5 and radio frequency line 6 is fixed in electrode 4, and the other end passes through the corresponding aperture on antipriming pipe 7 to be connected with external equipment.By
Preferable to the spreadability of different-diameter blood vessel in flap support, the same radio frequency ablation catheter comprising above-mentioned flap support can be used
In the radio-frequency (RF) ablation of different patients, equipment spreadability is preferable.
It is additionally provided with center puncture needle in the flap support that the present invention provides, center puncture needle pastes in flap stent expansion
Protrude from rack surface during wall to pierce in blood vessel wall, implement puncture injection；When in flap stent collapses, center puncture needle shrinks
Inside in flap support.
Meanwhile, the flap support that the present invention provides also has good adaptability to curved blood vessel, when above-mentioned flap support
Extend in curved blood vessel adherent after, it integrally can bend the shape adapting to blood vessel, and many in section between being disposed therein
Individual electrode can be simultaneously adherent.
In actual clinical treatment, radio frequency ablation catheter provided by the present invention and radio frequency ablation device can apply to not
The nerve ablation at same position, multiple different-diameter blood vessel or trachea.For example, it is applied to nerve ablation treatment intractable in renal artery
Hyperpietic, is applied to nerve ablation treatment diabeticss in coeliac artery, and for example, is applied to trachea/bronchus fan and walks
Nervous ramification's ablation asthmatic patient, and it is applied to duodenum vagus nerve branch ablation duodenal ulcer
Patient；Further, it is also possible to be used for other blood vessels or the endotracheal nerve ablation such as renal pelvis are interior, pulmonary artery is interior.It should be noted that
Radio frequency ablation catheter provided by the present invention is not limited to the above-mentioned application enumerated in clinical treatment, it may also be used for other positions
Nerve ablation.
The radio frequency ablation catheter above present invention being provided is described, invention also provides including above-mentioned radio frequency
The radio frequency ablation device of ablation catheter.This radio frequency ablation device remove include outside above-mentioned radio frequency ablation catheter, also include with above-mentioned
Joystick and radio-frequency (RF) ablation main frame that radio frequency ablation catheter connects.Wherein, the center wire drawing in flap support passes through antipriming pipe
After be connected on joystick, advance, retrogressing and the bending of radio frequency ablation catheter can be controlled by joystick.Flap support
In radio frequency line, thermocouple wire be connected in the corresponding circuits in radio-frequency (RF) ablation main frame by antipriming pipe respectively, thus realize penetrate
Frequency ablation main frame controls and temperature monitoring to the radio frequency of multiple electrodes.Due to the setting of joystick and setting of radio-frequency (RF) ablation main frame
Put and may refer to the applicant's previous application published patent, here is no longer described in detail to its concrete structure.
In sum, the radio frequency ablation catheter that the present invention provides, the flap support being adopted due to it is by a tubular object extruding
Form, while there is retractility, ensure that intensity, thus be difficult to lodge, and the multiple electrodes of setting on its scaffolding thread
Arrangement form extend adherent when meet specific requirement so that when flap support different-diameter Ink vessel transfusing extend when, many
Individual electrode all can be all adherent, and multiple electrodes are not overlapping in the axial direction of flap support.The retractility of this flap support is relatively
Good, wider to the spreadability of the blood vessel of different-diameter, the radio-frequency (RF) ablation that at least can meet 4～12mm blood vessel requires.And, should
Flap support also has good spreadability to curved blood vessel simultaneously.So, radio frequency ablation catheter and inclusion that the present invention provides
The radio frequency ablation device of above-mentioned radio frequency ablation catheter has extensive spreadability to the radio frequency operation of different patients.
Above the radio frequency ablation catheter with flap supporting structure provided by the present invention and its equipment are carried out in detail
Explanation.For one of ordinary skill in the art, to appointing that it is done on the premise of without departing substantially from true spirit
What obvious change, all will constitute to infringement of patent right of the present invention, will undertake corresponding legal responsibility.
Claims (11)
1. a kind of radio frequency ablation catheter with flap supporting structure is it is characterised in that include being processed by same hollow tube
Flap support, described flap support include around central axis according to many scaffolding threads of circular distribution and and described scaffolding thread
The connecting tube being connected as a single entity；Wherein,
It is respectively arranged with one or more electrodes in the interlude of every described scaffolding thread, the interlude of described flap support has
Contraction state and extended mode.
2. radio frequency ablation catheter as claimed in claim 1 it is characterised in that:
The middle part of described tubing forms detached many scaffolding threads, and the two ends of described tubing form two and described scaffolding thread respectively
The connecting tube of one；
Or, the middle part of described tubing forms detached many scaffolding threads, and one end of described tubing is formed and described scaffolding thread one
The connecting tube of body, the other end of described tubing forms the detached end of described scaffolding thread.
3. radio frequency ablation catheter as claimed in claim 1 it is characterised in that:
Described flap support also includes the center wire drawing being arranged at cental axial position, one end of described center wire drawing and described flap
The far-end of support is fixed or is passed the far-end of described flap support and is limited in the outside of described flap support, and the other end is worn
Proximally pass behind the center crossing described flap support, the wire drawing of described center can pull described lobe vertically with respect to described near-end
Shape support is so as to outward expansion, and, the wire drawing of described center can be remote to described flap support with respect to described flap support
End sliding.
4. radio frequency ablation catheter as claimed in claim 1 it is characterised in that:
The cylinder that the scaffolding thread of described flap support is intermediate cylindrical, two ends are contraction-like；
Or, the scaffolding thread of described flap support is the middle prominent, circle drum of two ends natural shrinking.
5. radio frequency ablation catheter as claimed in claim 1 it is characterised in that:
The provided circumferentially about of described electrode has opening.
6. radio frequency ablation catheter as claimed in claim 1 it is characterised in that:
The axis projection of multiple electrodes is not overlapping in the axial direction of described flap support.
7. radio frequency ablation catheter as claimed in claim 1 it is characterised in that:
Described flap support is provided with lodging-prevention structure, and described lodging-prevention structure is integrally fixed at the lodging-prevention on many scaffolding threads
Muscle.
8. radio frequency ablation catheter as claimed in claim 1 it is characterised in that:
The length direction of every scaffolding thread extends along the length direction of described hollow tube, and the two ends of described scaffolding thread are gathered respectively
Hold together to constitute described flap support proximally and distally.
9. the radio frequency ablation catheter as described in claim 1 or 8 it is characterised in that:
The near-end of described flap support is connected with antipriming pipe, one end of center wire drawing be fixed on described flap support far-end or
It is limited in the outside of far-end of described flap support and can wear with respect to the free sliding of far-end of described flap support, the other end
Cross the centre bore of antipriming pipe；Described scaffolding thread, thermocouple wire and radio frequency line is worn, the two ends of described electrode are solid respectively in described electrode
It is scheduled on described flap support, one end of described thermocouple wire and described radio frequency line is fixed in described electrode, and the other end passes through
Corresponding aperture on antipriming pipe is connected with external equipment.
10. radio frequency ablation catheter as claimed in claim 9 it is characterised in that:
Described radio frequency line and described thermocouple wire are fabricated to same silk material.
A kind of 11. radio frequency ablation device are led it is characterised in that including the radio-frequency (RF) ablation described in any one in claim 1～10
Manage the joystick being connected with described radio frequency ablation catheter and radio-frequency (RF) ablation main frame.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014103814209 | 2014-08-05 | ||
| CN201410381420 | 2014-08-05 | ||
| PCT/CN2015/081583 WO2016019760A1 (en) | 2014-08-05 | 2015-06-16 | Radiofrequency ablation catheter having petal-shaped stent structure and apparatus thereof |
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| Publication Number | Publication Date |
|---|---|
| CN205913392U true CN205913392U (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410554495.2A Pending CN104257427A (en) | 2014-08-05 | 2014-10-17 | Radiofrequency ablation catheter with segment-shaped support structure and equipment thereof |
| CN201590000029.8U Active CN205913392U (en) | 2014-08-05 | 2015-06-16 | Radiofrequency ablation catheter with segment -shaped support structure and equipment thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410554495.2A Pending CN104257427A (en) | 2014-08-05 | 2014-10-17 | Radiofrequency ablation catheter with segment-shaped support structure and equipment thereof |
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| Country | Link |
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| CN (2) | CN104257427A (en) |
| WO (1) | WO2016019760A1 (en) |
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| CN107007349A (en) * | 2017-05-20 | 2017-08-04 | 王新 | A kind of stomach esophagus radio-frequency ablation electrode |
| CN110897710A (en) * | 2019-11-30 | 2020-03-24 | 杭州堃博生物科技有限公司 | Control method and system of pulmonary nerve ablation system and computer medium |
| CN117694998A (en) * | 2024-02-05 | 2024-03-15 | 杭州科嘉生物技术有限公司 | Circulation cooling type ablation device |
| CN117694998B (en) * | 2024-02-05 | 2024-04-19 | 杭州科嘉生物技术有限公司 | Circulation cooling type ablation device |
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| CN104257427A (en) * | 2014-08-05 | 2015-01-07 | 上海魅丽纬叶医疗科技有限公司 | Radiofrequency ablation catheter with segment-shaped support structure and equipment thereof |
| CN104287824B (en) * | 2014-10-11 | 2017-09-15 | 先健科技(深圳)有限公司 | Ablation catheter apparatus |
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| US8979839B2 (en) * | 2009-11-13 | 2015-03-17 | St. Jude Medical, Inc. | Assembly of staggered ablation elements |
| CN201879818U (en) * | 2010-03-29 | 2011-06-29 | 马旺扣 | Concentrated beam-controlled drug-injection radio-frequency electrode needle |
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| CN103784196A (en) * | 2014-01-24 | 2014-05-14 | 上海魅丽纬叶医疗科技有限公司 | Cable type radiofrequency ablation catheter and manufacturing method thereof |
| CN203524766U (en) * | 2013-02-07 | 2014-04-09 | 上海魅丽纬叶医疗科技有限公司 | Trans-luminal wall-penetration nerve ablation catheter and equipment thereof |
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| CN103750898B (en) * | 2014-01-07 | 2016-02-17 | 先健科技(深圳)有限公司 | A kind of intraluminal ablation catheter |
| CN103750899B (en) * | 2014-01-21 | 2016-04-27 | 深圳市惠泰医疗器械有限公司 | Multi-electrode basket catheter and preparation method thereof |
| CN104257427A (en) * | 2014-08-05 | 2015-01-07 | 上海魅丽纬叶医疗科技有限公司 | Radiofrequency ablation catheter with segment-shaped support structure and equipment thereof |
-
2014
- 2014-10-17 CN CN201410554495.2A patent/CN104257427A/en active Pending
-
2015
- 2015-06-16 WO PCT/CN2015/081583 patent/WO2016019760A1/en active Application Filing
- 2015-06-16 CN CN201590000029.8U patent/CN205913392U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107007349A (en) * | 2017-05-20 | 2017-08-04 | 王新 | A kind of stomach esophagus radio-frequency ablation electrode |
| CN110897710A (en) * | 2019-11-30 | 2020-03-24 | 杭州堃博生物科技有限公司 | Control method and system of pulmonary nerve ablation system and computer medium |
| CN117694998A (en) * | 2024-02-05 | 2024-03-15 | 杭州科嘉生物技术有限公司 | Circulation cooling type ablation device |
| CN117694998B (en) * | 2024-02-05 | 2024-04-19 | 杭州科嘉生物技术有限公司 | Circulation cooling type ablation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104257427A (en) | 2015-01-07 |
| WO2016019760A1 (en) | 2016-02-11 |
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