CN107569283A - Screw type radio frequency ablation catheter and its equipment with adherent regulation silk - Google Patents
Screw type radio frequency ablation catheter and its equipment with adherent regulation silk Download PDFInfo
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- CN107569283A CN107569283A CN201710922462.2A CN201710922462A CN107569283A CN 107569283 A CN107569283 A CN 107569283A CN 201710922462 A CN201710922462 A CN 201710922462A CN 107569283 A CN107569283 A CN 107569283A
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Abstract
The invention provides a kind of screw type radio frequency ablation catheter with adherent regulation silk, conduit pipe shaft with strip, spiral electrode suppor is provided with the front end of conduit pipe shaft, one or more electrodes is provided with electrode suppor, the rear end of conduit pipe shaft is provided with joystick；The back segment of adherent regulation silk is slidably disposed in one of tube chamber of conduit pipe shaft, and its rear end is connected on the control piece being arranged on joystick, or through being connected on the control piece of peripheral hardware after joystick；The leading portion of adherent regulation silk passes the outside that electrode suppor is exposed to after electrode suppor, and its front end returns to inside electrode suppor and fixed.By pulling back adherent regulation silk, the spiral diameter of electrode suppor can be significantly alterred, so that screw type radio frequency ablation catheter adapts to the target tube chamber of different-diameter, and makes the electrode adhered state on electrode suppor good.
Description
The application is entitled：Screw type radio frequency ablation catheter and its equipment, Application No. with adherent regulation silk：
The divisional application of 201210350172.6 patent of invention, parent application day are on 06 19th, 2015.
Technical field
The present invention relates to a kind of screw type radio frequency ablation catheter with adherent regulation silk, while it is related to including above-mentioned radio frequency
The radio frequency ablation device of ablation catheter, belong to interventional medical device technical field.
Background technology
In radio frequency ablation system, radio frequency ablation catheter is for intervening human vas and carrying out the pass of RF energy release
Key device.Wherein, radio-frequency electrode is arranged on the support of radio frequency ablation catheter front end, and support is used to carry radio-frequency electrode, and
Radio frequency start before expand it is adherent, radio frequency terminate after-contraction recession.Because radio-frequency ablation procedure is directly involved in human vas
Carry out, so the flexible size of support will be adapted with the diameter of human vas.
Blood vessel diameter in human body is because of the different and different of ablation site.Meanwhile the diameter of human vas also because of people and
It is different, for example, the diameter of the arteria renalis of different human body, about between 2~12mm, difference is larger.In the prior art, radio frequency disappears
The flexible size for melting the electrode tip of conduit is generally fixed, the diameter dimension requirement of different human body blood vessel can not be adapted to, to not
Coverage rate with the human vas of diameter is narrower.Therefore, when carrying out radio-frequency ablation procedure to different patients, it usually needs more
Change different size, the radio frequency ablation catheter of model is melted.Nonetheless, when there is also operation in some cases, penetrate
The problem of frequency electrode can not be simultaneously adherent, influences surgical effect.
The structure of radio frequency ablation catheter be divided into according to the shape difference of electrode with electrode suppor it is a variety of, such as：Balloon type, wear
Pricker type, screw type and valvular structure etc..Wherein, electrode suppor is designed to the use of the radio frequency ablation catheter of screw type more
Extensively.Existing screw type radio frequency ablation catheter mainly by shaping in advance to electrode suppor, then in guiding catheter/sheath
(such as the sheath disclosed in Chinese utility model patent ZL200920172984.6 and Chinese invention application
Guiding catheter disclosed in CN201210480777.3) assistance under inside intravasation, by the radio frequency ablation catheter that moves forward, or
Person is removed radio frequency ablation catheter, so that electrode suppor exists by rear shifting guiding catheter/sheath out of sheath/guiding catheter
Recover after into target location to modular shapes.Because for single radio frequency ablation catheter, electrode suppor shapes in advance
Size fix, therefore, existing screw type radio frequency ablation catheter has limitation to the adaptability of different-diameter blood vessel.
The content of the invention
Primary technical problem to be solved by this invention is that providing a kind of screw type radio frequency with adherent regulation silk disappears
Melt conduit.
Another technical problem to be solved by this invention is that providing a kind of radio frequency including above-mentioned radio frequency ablation catheter disappears
Melt equipment.
In order to realize foregoing invention purpose, the present invention uses following technical schemes：
A kind of screw type radio frequency ablation catheter with adherent regulation silk, has the conduit pipe shaft of strip, is led described
The front end of pipe pipe shaft is provided with spiral electrode suppor, is provided with one or more electrodes on the electrode suppor, is led described
The rear end of pipe pipe shaft is provided with joystick；Wherein,
The back segment of the adherent regulation silk is slidably disposed in one of tube chamber of the conduit pipe shaft, and its
Rear end is connected on the control piece being arranged on the joystick, or through the control that peripheral hardware is connected to after the joystick
On product；After the leading portion of the adherent regulation silk passes the electrode suppor, the outside of the electrode suppor, and its are exposed to
Front end returns to inside electrode suppor and fixed.
Wherein more preferably, after the front end of the adherent regulation silk returns to electrode suppor inside, by the electrode suppor and
Tube chamber inside the conduit pipe shaft returns to catheter tube and holds behind and be fixed on the joystick or be fixed on institute
State on control piece.
Or wherein more preferably, after the adherent front end for adjusting silk returns to electrode suppor inside, it is fixed on the electricity
Pole support front end.
Or wherein more preferably, after the adherent front end for adjusting silk returns to electrode suppor inside, pass the electrode branch
Outside is fixed or be limited in frame front end；The adherent regulation silk is simultaneously supporting wire.
Or wherein more preferably, in addition to it is fixedly installed on some tube chamber of the connecting conduit and the electrode suppor
In supporting wire, also, it is described it is adherent regulation silk front end be fixed on supporting wire；Or the adherent regulation silk is institute
State the filament that supporting wire outwards separates.
Wherein more preferably, part of the supporting wire inside the electrode suppor is fixed to spiral, forms spiral and determines
Type section.
Or wherein more preferably, part and the electrode that the adherent regulation silk is exposed to outside the electrode suppor
A fixing point between support be present, the front-end and back-end of the adherent regulation silk are held behind from catheter tube respectively to be passed and consolidated
It is scheduled on the corresponding control piece being arranged on the joystick, or through the correspondence that peripheral hardware is connected to after the joystick
On control piece.
Wherein more preferably, the certain point that the adherent regulation silk is exposed to outside the electrode suppor is fixed on the electricity
In the hole of some spiral section of pole support.
Or wherein more preferably, the adherent regulation silk is made up of multiple thread strands, wherein, the front end of per share silk is fixed on electricity
On the support of pole, rear end enters the inside of electrode suppor or conduit pipe shaft after outside one section of spiral section around electrode suppor,
Then passed via the tube chamber of conduit pipe shaft from the end of conduit pipe shaft, and be fixed on the correspondence being arranged on the joystick
On control piece, or through being fixed on the corresponding control piece of peripheral hardware after the joystick, the multiple thread strands are respectively used to pair
The diameter of the different spiral sections of the electrode suppor is independently controlled.
Wherein more preferably, fixing point of the multiple thread strands on electrode suppor is different.
Wherein more preferably, in the multiple thread strands, every two strands of silks have a public fixing point on electrode suppor.
Wherein more preferably, per share silk enters the inside of electrode suppor from the diverse location on electrode suppor.
Or wherein more preferably, fixing point of the multiple thread strands on electrode suppor is identical.
A kind of radio frequency ablation device, including above-mentioned radio frequency ablation catheter and the radio frequency that is connected with the radio frequency ablation catheter
Melt main frame.
Screw type radio frequency ablation catheter provided by the invention with adherent regulation silk, to the target tube chamber of different-diameter
Adaptability is preferable.In the target tube chamber of different-diameter, by pulling adherent regulation silk, it can make to be arranged on electrode suppor
The adhered state of electrode is good.In addition, adherent regulation silk can also use the structure of multiple thread strands, by individually being controlled to monofilament
System, it is possible to achieve the control respectively to radio frequency ablation catheter difference spiral section, simplify the diameter adjustment difficulty of electrode suppor.
Brief description of the drawings
Fig. 1 is the knot of electrode suppor and conduit pipe shaft in the first screw type radio frequency ablation catheter provided by the present invention
Structure schematic diagram；
Fig. 2 is the cross-sectional view of electrode suppor in screw type radio frequency ablation catheter shown in Fig. 1；
Fig. 3 is the Section A-A schematic diagram of screw type radio frequency ablation catheter shown in Fig. 2；
Fig. 3 A are the I portions enlarged diagrams of screw type radio frequency ablation catheter shown in Fig. 3；
Fig. 4 is the schematic diagram of another set-up mode of adherent regulation silk in first embodiment；
Fig. 5 is the structural representation of joystick in the first screw type radio frequency ablation catheter provided by the present invention；
Fig. 6 A are the original state schematic diagrames of screw type radio frequency ablation catheter shown in Fig. 1；
Fig. 6 B are the schematic side views of screw type radio frequency ablation catheter shown in Fig. 6 A；
Fig. 7 is view of screw type radio frequency ablation catheter shown in Fig. 1 in sheath；
Fig. 8 is screw type radio frequency ablation catheter shown in Fig. 1 in relatively thin endovascular use state diagram；
Fig. 9 A are screw types radio frequency ablation catheter shown in Fig. 1 in relatively thick endovascular use state diagram；
Fig. 9 B are the schematic side views of screw type radio frequency ablation catheter shown in Fig. 9 A；
Figure 10 is the structural representation of electrode suppor and conduit pipe shaft in second of screw type radio frequency ablation catheter；
Figure 11 is the use state diagram of screw type radio frequency ablation catheter shown in Figure 10；
Figure 12 A are the use state diagrams of joystick in second of screw type radio frequency ablation catheter；
Figure 12 B are the another use state diagrams of joystick in second of screw type radio frequency ablation catheter；
Figure 13 is the structural representation of electrode suppor and conduit pipe shaft in the third screw type radio frequency ablation catheter；
Figure 14 is the structural representation of supporting wire in the third screw type radio frequency ablation catheter；
Figure 15 is the structural representation of electrode suppor and conduit pipe shaft in the 4th kind of screw type radio frequency ablation catheter；
Figure 16 is the structural representation of supporting wire and adherent regulation silk in the 4th kind of screw type radio frequency ablation catheter；
Figure 17 A are the structural representations of electrode suppor and conduit pipe shaft in the 5th kind of screw type radio frequency ablation catheter；
Figure 17 B are the schematic side views of screw type radio frequency ablation catheter shown in Figure 17 A；
Figure 18 A are the structural representations of electrode suppor and conduit pipe shaft in the 6th kind of screw type radio frequency ablation catheter；
Figure 18 B are the schematic side views of screw type radio frequency ablation catheter shown in Figure 18 A；
Figure 19 is the internal structure schematic diagram of electrode suppor in the 6th kind of screw type radio frequency ablation catheter；
Figure 20 A are adherent regulation silk post-tensioning in the 6th kind of screw type radio frequency ablation catheter, the state after electrode suppor is adherent
Schematic diagram；
Figure 20 B are the schematic side views of screw type radio frequency ablation catheter shown in Figure 20 A；
Figure 21 is the structural representation of adherent regulation silk in the 7th kind of screw type radio frequency ablation catheter；
Figure 22 A are another structural representations of adherent regulation silk in the 7th kind of screw type radio frequency ablation catheter；
Figure 22 B are another structural representations of adherent regulation silk in the 7th kind of screw type radio frequency ablation catheter.
Embodiment
The technology contents of the present invention are further described in detail with specific embodiment below in conjunction with the accompanying drawings.
First embodiment
Understood with reference to Fig. 1 to Fig. 5, screw type radio frequency ablation catheter provided by the invention, include the conduit pipe shaft of strip,
Spiral electrode suppor is provided with conduit pipe shaft front end, joystick 20 is provided with the rear end of conduit pipe shaft (referring to Fig. 5).
In actual fabrication, electrode suppor can be that conduit pipe shaft front end is fixed to spiral with conduit pipe shaft integral production, electrode suppor
The part of shape；Electrode suppor can also independently make, and then be connected as one with conduit pipe shaft.
As shown in figure 1, spiral electrode suppor includes outer tube 1 and the one or more electrodes 2 being arranged on outer tube 1.
Electrode 2 can be the block type electrode or ring electrode being embedded on the excircle of outer tube 1, and the upper surface of electrode 2 can be with outer tube 1
Flush with outer surface or the slightly above outer surface of outer tube 1, the upper surface of electrode 2 can also be less than the outer surface of outer tube 1.Multiple electricity
Circumferentially direction is uniform or not uniform in the spiral shape of electrode suppor for pole 2, and multiple electrodes can be on electrode suppor in 1 circle, 1
Circle is distributed less than 1 circle.
The outer tube 1 of electrode suppor can be single lumen catheter or multi-lumen tube, and outer tube 1 can use high polymer material or metal material
It is made, such as the material such as stainless steel or memorial alloy.Outer tube 1 can use straight tube material, bar to be process, and A sections also can be used
It is fabricated to spiral special shape pipe.As shown in Fig. 2 and Fig. 3 I, when outer tube 1 is using multi-lumen tube, in the outer tube of electrode suppor
1 inside is removed outside central lumen, is additionally provided with multiple tube chambers, is in charge of in the middle in chamber and is respectively arranged with one group of radio frequency line 3
With thermocouple wire 4, the head end of every group of radio frequency line 3 and thermocouple wire 4 is arranged on the inside of single electrode 2, wherein, radio frequency line 3
Head end is tightly fastened with electrode 2, such as realizes connection using welding, conductive adhesive technique；The head end weldering of two thermocouple wires 4
Connect and coated by thermocouple wire head end insulating barrier 5, then with radio frequency line 3 and the insulation set of electrode 2.
As shown in Fig. 2 being additionally provided with spiral fixed wire 6 in one of tube chamber of outer tube 1, spiral fixed wire 6 is fixed
In helix-deformed area segments, for supporting the spiral shape of electrode suppor.It is of course also possible to electrode suppor is directly shaped into spiral shell
Shape is revolved, so as to save spiral fixed wire 6, such as when making outer tube using memorial alloy or high polymer material, can save and set
Put spiral fixed wire 6.
As shown in figure 3, supporting wire 7 is provided with the central lumen of conduit pipe shaft and the inside of electrode suppor, supporting wire 7
It can be movably arranged as in central lumen, can also be fixedly installed in central lumen, or supporting wire 7 can also be arranged on
In other tube chambers of conduit pipe shaft and electrode suppor.The head end of supporting wire 7 can set developing head, for target tube intracavitary portion
Immediately it is imaged.Meanwhile soft seal wire 9 can also be set in the front end of supporting wire 7, soft seal wire 9 can be the soft seal wire of straight peen,
Can also be the soft seal wire of elbow of diagram, so as to so that the radio frequency ablation catheter can save guiding catheter/sheath, directly enter
Enter blood vessel, simplify operation technique.
Understood with reference to Fig. 1 to Fig. 5, the inside of conduit pipe shaft is additionally provided with the tube chamber for accommodating adherent regulation silk 8, adherent
The back segment of regulation silk 8 is slidably disposed in one of tube chamber of conduit pipe shaft, and its rear end 80 passes conduit pipe shaft
After penetrate joystick 20, be connected to after then passing joystick 20 on the control piece 22 of peripheral hardware (referring to Fig. 5).Adherent regulation
Silk 8 can slide back and forth in the tube chamber of conduit pipe shaft.Tube chamber for accommodating adherent regulation silk 8 can be central lumen,
Can be distributed across in multiple eccentric tube chambers of central lumen periphery one.As shown in figure 1, it is adherent regulation silk 8 leading portion from
The outside of electrode suppor is passed in the hole 12 of electrode suppor rear end, exposes to the outside of electrode suppor, and its front end from
Return to inside electrode suppor and fixed close to the hole 11 of electrode suppor front end.
The fixed position of the front end of adherent regulation silk 8 can be different, can be fixed on the front end of electrode suppor, can also
The front end of supporting wire 7 is fixed on, can also be fixed on spiral fixed wire 6, or, it may also pass through electrode suppor and lead
Corresponding tube chamber inside pipe pipe shaft returns to catheter tube and held behind, is fixed on together with the rear end of adherent regulation silk 8 on control piece 22.
Specifically, in the structure shown in Fig. 3, the front end of adherent regulation silk 8 is from close to the hole 11 of electrode suppor front end
After returning to electrode suppor inside, by the tube chamber inside electrode suppor and conduit pipe shaft, returned together with the rear end of adherent regulation silk 8
To the rear end of conduit pipe shaft, then the front-end and back-end of adherent regulation silk 8 can be fixed on same control as shown in Figure 5 in the lump
On product 22, or, the front-end and back-end of adherent regulation silk 8, wherein one end is fixed on the housing of joystick 20, separately
One end is fixed on control piece 22.By pulling control piece 22, thus it is possible to vary the diameter of electrode suppor spiral section.
Certainly, the front end of adherent regulation silk 8 can also be simply secured in the front end of electrode suppor, or be fixed on support
The front end of silk 7 or supporting wire 7 are located at a certain position inside electrode suppor, or a certain portion being fixed on spiral fixed wire 6
Position, or be fixed in the tube chamber of electrode suppor, as long as playing fixation to its front end.So as to when from rear end, pulling is pasted
When wall adjusts silk 8, in the presence of adherent regulation silk 8, electrode suppor can shrink deformation, and the increase of its spiral diameter is more
Individual spiral axial spacing is shunk.When the front end of adherent regulation silk 8 is fixed on supporting wire 7 or spiral fixed wire 6,
Adherent regulation silk 8 and the spiral fixed wire 6 of supporting wire 7/ can use identical material to make, now it is to be understood that adherent regulation
Silk 8 is the filament that the spiral fixed wire 6 of supporting wire 7/ separates backward.
For example, in the structure shown in Fig. 4, the front end and the front end of spiral fixed wire 6 of adherent regulation silk 8 are fixed on one
Rise, now, spiral fixed wire 6 and adherent regulation silk 8 can be made by filament of the same race, and adherent regulation silk 8 and spiral fixed wire 6
It is the Liang Gen filaments branch that its front end separates backward respectively, wherein being fixed on electrode suppor corresponding to the branch of spiral fixed wire 6
A certain tube chamber in, can be in electrode suppor and/or the tube chamber of conduit pipe shaft corresponding to the back segment of branch of adherent regulation silk 8
Middle slip.When adherent regulation silk 8 and spiral fixed wire 6 are made using unlike material (such as spiral fixed wire 6 uses tubing,
Adherent regulation silk 8 use filament), can by front end/leading portion of adherent regulation silk 8 and spiral fixed wire 6 by welding, riveting,
The modes such as bonding fit together.
In addition, from Fig. 5 it is also seen that in said structure, button controls 21 are also provided with joystick 20,
The end 70 of supporting wire 7 passes catheter tube and enters joystick 20 behind, and is fixed on button controls 21.For with branch
The control piece of the end connection of support wire 7, can also be as control piece 22 in addition to being arranged on as shown in the figure on joystick 20
The outside of joystick 20 is arranged on, similarly, the control piece for being connected with adherent regulation silk 8 can also be such as button controls 21
Equally it is arranged on joystick 20.
Fig. 6 A to Fig. 9 B show in first embodiment provided by the invention that screw type radio frequency ablation catheter is in different-diameter
Intraluminal use state diagram.As shown in Figure 6 A and 6 B, using the initial diameter Φ B of spiral electrode support as 10mm,
Exemplified by head and the tail electrode axial direction spacing is A radio frequency ablation catheter.When it enters in Φ 2mm sheath, the form of electrode suppor
As shown in Figure 7 close to linear pattern.When its protruded into out of sheath Φ 4mm it is intravascular when, the screw type of electrode suppor it is straight
It is about 4mm that footpath Φ B-3 are limited by blood vessel diameter, and now, electrode is close with tube wall under the natural extension effect of electrode suppor
Contact, the axial spacing (A-3) of head and the tail electrode>A (referring to Fig. 8).As shown in fig. 9 a and fig. 9b, when it is protruded into out of sheath
Φ 12mm it is intravascular when, after electrode suppor natural extension, due to its initial diameter Φ B be less than target tube chamber diameter, electrode
2 can not be adherent, and now, by pulling back adherent regulation silk 8, the spiral diameter of electrode suppor can increase as Φ B-4,
Equal with the diameter of target tube chamber, multiple electrodes 2 are in close contact in the presence of adherent regulation silk 8 with tube wall.Now, head and the tail
Electrode axial direction spacing is decreased to A-4, and the axial spacing of multiple electrodes reduces, but being relatively large in diameter due to target tube chamber, can also
The ablation of multiple electrodes is avoided to influence each other, so as to cause excessively to melt.Also, from the side shown in Fig. 6 B and Fig. 9 B
View can also be seen that the equally distributed multiple electrodes 2 in the spiral shape of electrode suppor, in the effect of adherent regulation silk 8
Under, its axial spacing reduces, and spiral spacing will not change.
Electrode suppors of Fig. 6 A to Fig. 9 B using Φ B as 10mm is illustrated.It is spiral initial when electrode suppor
During a diameter of other values (for example, 6mm, 8mm), similarly, when it enters it is thinner intravascular when, it is natural in spiral type electrode support
In the presence of expansion, multiple electrodes can be simultaneously adherent good, and when it enters target of the diameter more than spiral shape initial diameter
During tube chamber, as shown in fig. 9 a and fig. 9b, by pulling adherent regulation silk, multiple electrodes can also be made with tube wall while closely connect
Touch, adhered state is good.
Second embodiment
Radio frequency ablation catheter as shown in Figure 10 is similar with the structure of the radio frequency ablation catheter of first embodiment, and its is contraction-like
State is referring to Figure 11.Figure 12 A and Figure 12 B are use state of the joystick 20 of the radio frequency ablation catheter under different conditions respectively
Schematic diagram.
Specifically, spiral fixed wire 6 is provided with electrode suppor, and is provided with conduit pipe shaft and electrode suppor
Supporting wire 7.Wherein, the part corresponding with electrode suppor of supporting wire 7 is exposed at the outside of electrode suppor, supporting wire 7 and catheter tube
Part is arranged in a certain tube chamber of conduit pipe shaft corresponding to body, also, its rear end wear from catheter tube after be fixed on and set
Put on the control piece 25 on joystick 20.By pulling supporting wire 7, thus it is possible to vary the spiral shape form of electrode suppor, branch
Support wire 7 has the function that adherent regulation silk 8 simultaneously.In other words, the back segment of adherent regulation silk 8 is slidably disposed in catheter tube
In a certain tube chamber of body, and its rear end is connected to joystick 20；The leading portion of adherent regulation silk 8 passes electrode suppor from hole 12
The outside of electrode suppor is exposed to afterwards, and after its front end returns to electrode suppor inside from hole 11, passes electrode suppor front end simultaneously
Fixed or be limited in outside；Adherent regulation silk 8 is the supporting wire of conduit pipe shaft simultaneously.Can in the front end of adherent regulation silk 8
To set developing head and/or soft seal wire 9.
As illustrated in figs. 12 a and 12b, in this embodiment, one can be only set on joystick 20 with supporting wire 7 to connect
The control piece 25 connect, now, control piece 25 are used to be adjusted the retracted position of electrode suppor.By by control piece 25
From the position shown in the position pusher to Figure 12 B shown in Figure 12 A, supporting wire 7 can be pulled back, that is, pulls back adherent regulation
Silk 8, increases the spiral diameter of electrode suppor.
3rd embodiment
Radio frequency ablation catheter is similar with the structure of the radio frequency ablation catheter of first embodiment as shown in fig. 13 that, and Figure 14 is shown
The structure of the supporting wire 7 of radio frequency ablation catheter in 3rd embodiment.
In this embodiment, the structure of adherent regulation silk 8 is identical with first embodiment.The back segment of adherent regulation silk 8 can be slided
It is arranged at dynamicly in a certain tube chamber of conduit pipe shaft, and its rear end is connected on the control piece 22 being arranged on joystick 20
Or it is connected to after passing joystick 20 on the control piece 22 of peripheral hardware；The leading portion of adherent regulation silk 8 passes electrode branch from hole 12
The outside of electrode suppor is exposed to after frame, and after its front end returns to electrode suppor inside from hole 11, electrode can be fixed on
The front end of support, the front end of supporting wire 7 can also be fixed on, or, it may also pass through inside electrode suppor and conduit pipe shaft
Corresponding tube chamber return to catheter tube and hold behind, be fixed on together with the rear end of adherent regulation silk 8 joystick 20 housing or
On person's control piece 22.By pulling control piece 22, thus it is possible to vary the diameter of electrode suppor spiral section.
In this embodiment, spiral fixed wire is not independently arranged, wherein, as shown in figure 14, by shaping in advance, make support
The part that the front portion of silk 7 corresponds to electrode suppor is fixed to screw type, forms spiral sizing section 76.Supporting wire 7 is fixedly installed
In a certain tube chamber of electrode suppor and conduit pipe shaft, you can the corresponding part of electrode suppor is obtained spiral shape.
In first embodiment and 3rd embodiment, adherent regulation silk 8 can be arranged on conduit pipe shaft in the lump with supporting wire 7
Same tube chamber in, can also be respectively and independently arranged in the single tube chamber of conduit pipe shaft.
Fourth embodiment
Radio frequency ablation catheter as shown in figure 15 is similar with the structure of the radio frequency ablation catheter of first embodiment, and Figure 16 is shown
The structure of the supporting wire 7 of radio frequency ablation catheter in fourth embodiment and adherent regulation silk 8, wherein, supporting wire 7, adherent tune
Section silk 8 and spiral fixed wire 6 are wholely set.
In this embodiment, supporting wire 7 is internally provided with conduit pipe shaft and electrode suppor, and inside electrode suppor
Spiral fixed wire is not independently arranged.Wherein, as shown in figure 16, by shaping in advance, the front portion of supporting wire 7 is made to correspond to electrode branch
The part of frame is fixed to screw type, forms spiral sizing section 76.
Adherent regulation silk 8 is wholely set with supporting wire 7, and the front end of adherent regulation silk 8 is fixed on supporting wire 7, or, patch
Wall regulation silk 8 is the filament outwards separated from supporting wire 7.The leading portion of adherent regulation silk 8 is exposed after passing electrode suppor from hole 11
Returned in the outside of electrode suppor, and from hole 12 inside electrode suppor/conduit pipe shaft, then its back segment is slidably disposed through leading
A certain tube chamber inside pipe pipe shaft returns to catheter tube and held behind, is fixed on control piece 22., can be with by pulling control piece 22
Change the diameter of electrode suppor spiral section.
In this embodiment, the back segment of adherent regulation silk 8 can be arranged on a certain pipe of conduit pipe shaft in the lump with supporting wire 7
In chamber, it can also be independently arranged in another tube chamber of conduit pipe shaft.
5th embodiment
Figure 17 A and Figure 17 B are the structural representations of the radio frequency ablation catheter in the 5th embodiment.
As shown in Fig. 6 B and Fig. 9 B, in first embodiment into fourth embodiment, even if adherent regulation silk 8 is in conduit pipe shaft
Eccentric tube chamber in set, its part exposed to outside electrode suppor still positioned at the spiral center of electrode suppor it is attached
Closely.When pulling back adherent regulation silk 8, axial shrinkage occurs for electrode suppor, and adherent regulation silk 8 is through in spiral
Heart position；When the spiral shape of electrode suppor is elongated to close to straight line, the adherent portion for adjusting silk 8 and exposing to outside electrode suppor
Point with the outer tube 1 of electrode suppor close to parallel.
Different from aforementioned four embodiment, in the 5th embodiment, adherent regulation silk 8 is simultaneously not disposed on electrode suppor spiral
The near center location of shape, but in spiral outer circumferential position eccentric setting.As shown in Figure 17 A and Figure 17 B, when adherent tune
Silk 8 is saved in the spiral outer circumferential position eccentric setting of electrode suppor, adherent regulation silk 8 is exposed to outside electrode suppor
Part is to bypass the side outside spiral shape not through spiral inside.When pulling back adherent regulation silk 8, position
The spiral section of a circle or a circle above between electrode suppor holes 11 and 12 shrinks deformation, becomes new spiral shape,
So as to increase spiral existing diameter, expanded in diameter is realized.
By such a set-up mode, it can greatly increase the spiral diameter after shrinking, ideally, electrode branch
Frame goes for the blood vessel that diameter is more than the single spiral section diameter of electrode suppor.Because human vas diameter range is fixed, from
And the initial diameter of the screw type of electrode suppor in radio frequency ablation catheter can significantly be reduced, facilitate radio frequency ablation catheter to enter
Blood vessel and move in the blood vessels.
Sixth embodiment
Structure such as Figure 18 A to Figure 20 B radio frequency ablation catheters showing in sixth embodiment provided by the present invention is shown
It is intended to, wherein, adherent regulation silk 8, which exposes to, has a fixing point between the part outside electrode suppor and electrode suppor, paste
Wall regulation silk 8 front-end and back-end held behind from catheter tube pass and be fixed on it is being arranged on joystick 20 or outer
It is located on the corresponding control piece outside joystick 20.
As shown in Figure 18 A and Figure 18 B, when adherent regulation silk 8 does not tense, adherent regulation silk 8 is exposed to outside electrode suppor
The partial relaxation in portion.The certain point that adherent regulation silk 8 is exposed to outside electrode suppor is fixed on some spiral of electrode suppor
Duan Shang, the point can be directly anchored on outer tube, can also be fixed in the hole being arranged on outer tube.For holding electrode support
Smooth outer wall, avoid fixing point from causing to scratch to target tube chamber, recommend to be arranged on the fixing point in the hole of outer tube 1.
Specifically, as shown in figure 19, in this embodiment, the middle part of adherent regulation silk 8 and electrode suppor has one
Fixing point 13, the leading portion 81 of adherent regulation silk 8 is bypassed outside electrode suppor forward from fixing point 13, from close to electrode suppor front end
Hole 11 return to inside electrode suppor, and returned to via the tube chamber inside electrode suppor and conduit pipe shaft in joystick 20；Patch
The back segment 82 of wall regulation silk 8 is bypassed outside electrode suppor backward from fixing point 13, and is returned from the hole 12 close to electrode suppor rear end
Returned to inside electrode suppor, and via the tube chamber inside electrode suppor and conduit pipe shaft in joystick 20.Adherent regulation silk 8
Leading portion 81 and back segment 82 can return to joystick 20 via the same tube chamber in electrode suppor and conduit pipe shaft, can also be as
Shown in Figure 19 joystick 20 is each returned to via different tube chambers.One control piece can be set on joystick 20, used
In the end of leading portion 81 and the end of back segment 82 of the adherent regulation silk 8 of fixation, two control pieces can also be set, for respectively
The end of leading portion 81 and the end of back segment 82 of fixed adherent regulation silk 8, so as to realize the He of leading portion 81 to adherent regulation silk 8
The control respectively of back segment 82.
The leading portion 81 of adherent regulation silk 8 is used for a circle or more of the coordination electrode support between hole 11 and fixing point 13
The expanded in diameter of spiral section is enclosed, the back segment 82 of adherent regulation silk 8 is used for coordination electrode support between hole 12 and fixing point 13
One circle or multi-circle spiral flow section expanded in diameter.As shown in Figure 20 A and Figure 20 B, tensed when by the back segment 82 of adherent regulation silk 8
When, the hole 12 of fixing point 13 to electrode suppor is close, and the diameter positioned at 1 circle spiral section between the two is constantly close to electrode branch
The spiral initial diameter of phi B of frame, obtains preferably adherent effect, and the spiral section more than 1 circle can be deformed into one newly
Spiral shape, its diameter exceed the spiral initially diameter of phi B of electrode suppor, expanded in diameter occur.Similarly, when by adherent regulation
When the leading portion 81 of silk 8 tenses, the hole 11 of electrode suppor is close to fixing point 13, positioned at the diameter of 1 circle spiral section between the two
Constantly close to the spiral initially diameter of phi B of electrode suppor, preferably adherent effect is obtained, and more than the spiral section of 1 circle
A new spiral shape can be deformed into, its diameter occurs diameter and expanded also more than the spiral initially diameter of phi B of electrode suppor
, so as to obtain bigger adherent diameter and more excellent adherent effect.
The control of the leading portion 81 and back segment 82 of adherent regulation silk can be divided by two single control pieces for corresponding to connection therewith
Do not control, so as to realize the independent adjustment to the diameter of different parts on electrode suppor, can also be controlled in the lump by same control piece
System, so as to realize the control of the overall expanded in diameter of multiple spiral sections to electrode suppor.Moreover, when adherent regulation silk leading portion 81
End and the end of back segment 82 when being separately fixed on different control pieces, by the leading portion 81 for pulling adherent regulation silk simultaneously
With back segment 82, the different parts of electrode suppor can also be made while deformed, so as to reach the diameter adjustment to whole electrode suppor,
Reach axial shrinkage effect as shown in FIG. 20 A, the screw diameter after its expanded in diameter can reach as shown in fig. 20b
Effect.Due to the leading portion 81 and back segment 82 of adherent regulation silk 8 can distinguish coordination electrode support be located at hole 12 and fixing point 13 it
Between, and a circle or the expanded in diameter of multi-circle spiral flow section between hole 11 and fixing point 13.It is equal to the diameter after expansion
Green diameter even greater than as shown in figure 18b, it is hereby achieved that more excellent adherent effect, and can take into account have it is bigger
The target tube chamber of the diameter change of scope.
7th embodiment
In the 7th embodiment, it is arranged on the adherent regulation silk 8 inside radio frequency ablation catheter and is made up of multiple thread strands, wherein,
The front end of per share silk is fixed on electrode suppor, and rear end enters electrode suppor after outside one section of spiral section around electrode suppor
Or the inside of conduit pipe shaft, then passed via the tube chamber of conduit pipe shaft from the end of conduit pipe shaft, and be fixed on and be arranged on
On the corresponding control piece of joystick 20, or through being fixed on the corresponding control piece of peripheral hardware after joystick 20, multiply
Silk is respectively used to be independently controlled the diameter of the different spiral sections of electrode suppor.
In the structure shown in Figure 21, adherent regulation silk 8 is made up of two strands of silks 84 and 85, and its front end is fixed on electrode jointly
On the certain point of support, fixing point 83 is formed, different spiral sections of the rear end respectively around electrode suppor enter electrode suppor or led
The inside of pipe pipe shaft, and return to rear end via the tube chamber inside electrode suppor and conduit pipe shaft and be fixed in joystick 20
Corresponding control piece on.The structure of this adherent regulation silk 8 with two strands of silks and the structure of sixth embodiment are essentially identical, all
Available for the expanded in diameter that electrode suppor leading portion and back segment spiral section is separately controlled.Or can also be directly by sixth embodiment
Structure regard that adherent regulation silk 8 is understood using the situations of two strands of silks in the 7th embodiment as.
When adherent regulation silk 8 has more than two strands of silk, it is fixed on electrode suppor per one front end, close
The part of front end (i.e. close to fixing point) is exposed to outside electrode suppor, and rear end is entered from the hole for being arranged on electrode suppor diverse location
Enter inside electrode suppor, and joystick is returned to via the same tube chamber inside electrode suppor and conduit pipe shaft or different tube chambers
20, and be fixed on corresponding control piece.Wherein, fixing point of the multiple thread strands on electrode suppor can be with identical, can be different,
Can be with incomplete same.When multiple thread strands are incomplete same in the fixing point on electrode suppor, every two strands of silks are on electrode suppor
There can be a public fixing point, the structure setting of two strands of silks may be referred to the structure shown in Figure 21.When multiple thread strands are in electricity
When fixing point on the support of pole is identical, the front end of different silks can be fixed in the front-end A of electrode suppor as shown in fig. 22,
Then the rear end of per share silk is made to enter respectively from different hole B, C, D on electrode suppor and more holes inside electrode suppor, and
Passed via electrode suppor and conduit pipe shaft from conduit pipe shaft end, the end E of multiple thread strands is separately fixed on corresponding control piece；
The front end of different silks can also be fixed on the side D ' at electrode suppor rear portion as shown in Figure 22 B, then makes per share silk
Rear end is located at from electrode suppor inside anterior different hole A ', B ', C ' and more porous entrance electrode suppor, and via electrode branch
Frame and conduit pipe shaft pass from conduit pipe shaft end, and the end E ' of multiple thread strands is separately fixed at the correspondence for being arranged on joystick 20
On control piece or on the corresponding control piece of peripheral hardware.Per share silk enters in electrode suppor from the diverse location on electrode suppor
Portion, so as to by pulling single silk control to enter positioned at the fixing point of this thread front end and this thread between the position of electrode suppor
Spiral section diameter change.Certainly, above-mentioned multiple thread strands can also be fixed on the same control piece of joystick 20, so as to real
Now the overall diameter of electrode suppor is adjusted.
When being controlled respectively electrode suppor difference spiral section using multiple control pieces, enter in the radio frequency ablation catheter
After entering target location, segment expansion can be carried out to the corresponding spiral section of electrode suppor as needed, i.e., only expansion needs radio frequency
Spiral section, so as to increase electrode suppor difference spiral section diameter adjustment flexibility, and reduce radio frequency ablation catheter patch
The difficulty of wall adjustment.
In summary, adherent regulation silk is provided with screw type radio frequency ablation catheter, by pulling back adherent regulation
Silk, thus it is possible to vary the spiral diameter of electrode suppor, so as to improve the adhered state of electrode so that the radio frequency ablation catheter is applicable
In the blood vessel of different-diameter.In addition, above-mentioned adherent regulation silk can also use the structure of multiple thread strands, so as to realize to RF ablation
The control respectively of conduit difference spiral section, simplify the difficulty of diameter adjustment.
In actual clinical treatment, radio frequency ablation catheter and radio frequency ablation device provided by the present invention can apply to not
The nerve ablation at same position, a variety of different-diameter blood vessels or tracheae.For example, applied to nerve ablation treatment intractable in the arteria renalis
Hyperpietic, diabetic is treated applied to nerve ablation in arteria coeliaca, and for example, is walked applied to tracheae/bronchus fan
Nervous ramification's ablation asthmatic patient, and suffer from applied to duodenum vagus nerve branch ablation duodenal ulcer
Person；Further, it is also possible to it is used for other blood vessels or the endotracheal nerve ablations such as renal plevis is interior, pulmonary artery is interior.It should be noted that this
The there is provided radio frequency ablation catheter of invention is not limited to the above-mentioned application enumerated in clinical treatment, it may also be used for other positions
Nerve ablation.
Radio frequency ablation catheter provided by the invention is described above, invention also provides including above-mentioned radio frequency
The radio frequency ablation device of ablation catheter.The radio frequency ablation device remove include outside above-mentioned radio frequency ablation catheter, in addition to it is above-mentioned
The RF ablation main frame of radio frequency ablation catheter connection.Wherein, the adherent regulation silk inside electrode suppor is right behind through catheter tube
It should be connected on joystick, pull the adherent silk that adjusts to change the shape of electrode suppor by joystick so that electrode
Support is adherent good in the target tube intracavitary of different-diameter.Also, the radio frequency line, thermocouple wire in electrode suppor are respectively by leading
Pipe pipe shaft is connected in the corresponding circuits in RF ablation main frame, so as to realize radio frequency control of the RF ablation main frame to multiple electrodes
System and temperature monitoring.Due to the setting of joystick and the setting of RF ablation main frame may refer to the applicant it is published
First patent application, no longer its concrete structure is described in detail herein.
The screw type radio frequency ablation catheter provided by the present invention with adherent regulation silk and its equipment are carried out above
Detailed description.For those of ordinary skill in the art, it is done on the premise of without departing substantially from true spirit
Any obvious change, the scope of protection of the invention all should be belonged to.
Claims (9)
1. a kind of screw type radio frequency ablation catheter with adherent regulation silk, there is the conduit pipe shaft of strip, in the conduit
The front end of pipe shaft is provided with spiral electrode suppor, one or more electrodes is provided with the electrode suppor, in the conduit
The rear end of pipe shaft is provided with joystick；It is characterized in that：
The back segment of the adherent regulation silk is slidably disposed in one of tube chamber of the conduit pipe shaft, and its rear end
It is connected on the control piece being arranged on the joystick, or through the control piece that peripheral hardware is connected to after the joystick
On；
After the leading portion of the adherent regulation silk passes the electrode suppor, the outside of the electrode suppor is exposed to, and before it
After end returns to electrode suppor inside, pass the electrode suppor front end and fixed or be limited in outside；The adherent regulation silk
It is simultaneously supporting wire.
2. screw type radio frequency ablation catheter as claimed in claim 1, it is characterised in that：
The front end of the adherent regulation silk is provided with developing head and/or soft seal wire.
3. screw type radio frequency ablation catheter as claimed in claim 2, it is characterised in that：
Also include being arranged on the spiral fixed wire inside the electrode suppor.
4. a kind of screw type radio frequency ablation catheter with adherent regulation silk, there is the conduit pipe shaft of strip, in the conduit
The front end of pipe shaft is provided with spiral electrode suppor, one or more electrodes is provided with the electrode suppor, in the conduit
The rear end of pipe shaft is provided with joystick；It is characterized in that：
The back segment of the adherent regulation silk is slidably disposed in one of tube chamber of the conduit pipe shaft, and its rear end
It is connected on the control piece being arranged on the joystick, or through the control piece that peripheral hardware is connected to after the joystick
On；
After the leading portion of the adherent regulation silk passes the electrode suppor, the outside of the electrode suppor is exposed to, and before it
End returns to inside electrode suppor and fixed；
Also include the supporting wire being arranged in some tube chamber of the connecting conduit and the electrode suppor, wherein, it is described adherent
The front end of regulation silk is fixed on supporting wire；Or the adherent regulation silk is the filament that the supporting wire outwards separates.
5. screw type radio frequency ablation catheter as claimed in claim 4, it is characterised in that：
Part of the supporting wire inside the electrode suppor is fixed to screw type, forms spiral sizing section.
6. the screw type radio frequency ablation catheter as described in claim 1 or 4, it is characterised in that：
The part that the adherent regulation silk is exposed to outside electrode suppor is arranged on spiral center.
7. the screw type radio frequency ablation catheter as described in claim 1 or 4, it is characterised in that：
The part that the adherent regulation silk is exposed to outside the electrode suppor is in the excircle position away from spiral shape center
Put eccentric setting.
8. the screw type radio frequency ablation catheter as described in claim 1 or 4, it is characterised in that：
The electrode suppor includes outer tube, and electrode is embedded with the excircle of the outer tube, is set in the inside of the outer tube
There are one or more tube chambers, one group of thermocouple wire and radio frequency line are respectively arranged with which part tube chamber；Each electrode
One group of radio frequency line and thermocouple wire are internally provided with, the radio frequency line is connected with the electrode, the thermocouple wire and the electricity
Pole insulation set.
9. a kind of radio frequency ablation device, it is characterised in that led including the RF ablation described in any one in claim 1~8
Pipe, and the RF ablation main frame being connected with the radio frequency ablation catheter.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129947.7A CN104688334A (en) | 2015-03-23 | 2015-03-23 | Spiral type radio frequency ablation catheter and equipment with wall-adhered adjusting screw |
| CN2015101299477 | 2015-03-23 | ||
| CN201510350172.6A CN104939918B (en) | 2015-03-23 | 2015-06-19 | Screw type radio frequency ablation catheter and its equipment with adherent regulation silk |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510350172.6A Division CN104939918B (en) | 2015-02-03 | 2015-06-19 | Screw type radio frequency ablation catheter and its equipment with adherent regulation silk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107569283A true CN107569283A (en) | 2018-01-12 |
| CN107569283B CN107569283B (en) | 2020-12-04 |
Family
ID=53336186
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510129947.7A Pending CN104688334A (en) | 2015-02-03 | 2015-03-23 | Spiral type radio frequency ablation catheter and equipment with wall-adhered adjusting screw |
| CN201710937875.8A Active CN107595382B (en) | 2015-03-23 | 2015-06-19 | Spiral radiofrequency ablation catheter with adherent adjusting wire and equipment thereof |
| CN201710922462.2A Active CN107569283B (en) | 2015-03-23 | 2015-06-19 | Spiral radiofrequency ablation catheter with adherent adjusting wire and equipment thereof |
| CN201510350172.6A Active CN104939918B (en) | 2015-02-03 | 2015-06-19 | Screw type radio frequency ablation catheter and its equipment with adherent regulation silk |
| CN201520433569.7U Withdrawn - After Issue CN204734547U (en) | 2015-02-03 | 2015-06-19 | Screw -tupe radio frequency melts pipe and equipment with silk is adjusted to adherence |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510129947.7A Pending CN104688334A (en) | 2015-02-03 | 2015-03-23 | Spiral type radio frequency ablation catheter and equipment with wall-adhered adjusting screw |
| CN201710937875.8A Active CN107595382B (en) | 2015-03-23 | 2015-06-19 | Spiral radiofrequency ablation catheter with adherent adjusting wire and equipment thereof |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510350172.6A Active CN104939918B (en) | 2015-02-03 | 2015-06-19 | Screw type radio frequency ablation catheter and its equipment with adherent regulation silk |
| CN201520433569.7U Withdrawn - After Issue CN204734547U (en) | 2015-02-03 | 2015-06-19 | Screw -tupe radio frequency melts pipe and equipment with silk is adjusted to adherence |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN104688334A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114569232A (en) * | 2022-04-11 | 2022-06-03 | 上海安通医疗科技有限公司 | Ultrasonic ablation catheter |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2955930T3 (en) | 2015-02-03 | 2023-12-11 | Shanghai Golden Leaf Med Tec Co Ltd | Radiofrequency ablation catheter with spiral structure and equipment thereof |
| CN104688334A (en) * | 2015-03-23 | 2015-06-10 | 上海魅丽纬叶医疗科技有限公司 | Spiral type radio frequency ablation catheter and equipment with wall-adhered adjusting screw |
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2015
- 2015-03-23 CN CN201510129947.7A patent/CN104688334A/en active Pending
- 2015-06-19 CN CN201710937875.8A patent/CN107595382B/en active Active
- 2015-06-19 CN CN201710922462.2A patent/CN107569283B/en active Active
- 2015-06-19 CN CN201510350172.6A patent/CN104939918B/en active Active
- 2015-06-19 CN CN201520433569.7U patent/CN204734547U/en not_active Withdrawn - After Issue
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| CN114569232B (en) * | 2022-04-11 | 2023-05-05 | 上海安通医疗科技有限公司 | Ultrasonic ablation catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107595382A (en) | 2018-01-19 |
| CN204734547U (en) | 2015-11-04 |
| CN104688334A (en) | 2015-06-10 |
| CN104939918B (en) | 2017-11-21 |
| CN104939918A (en) | 2015-09-30 |
| CN107569283B (en) | 2020-12-04 |
| CN107595382B (en) | 2020-09-01 |
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