CN204734547U - Screw -tupe radio frequency melts pipe and equipment with silk is adjusted to adherence - Google Patents
Screw -tupe radio frequency melts pipe and equipment with silk is adjusted to adherence Download PDFInfo
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- CN204734547U CN204734547U CN201520433569.7U CN201520433569U CN204734547U CN 204734547 U CN204734547 U CN 204734547U CN 201520433569 U CN201520433569 U CN 201520433569U CN 204734547 U CN204734547 U CN 204734547U
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- radio frequency
- electrode suppor
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- frequency ablation
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Abstract
The utility model provides a having the adherence and adjusting the screw -tupe radio frequency of silk and melt the pipe, have the pipe pipe shaft of rectangular shape, be equipped with helical shape electrode support at the front end of pipe pipe shaft, the last one or more electrode that is provided with of electrode support is provided with brake valve lever in the rear end of pipe pipe shaft, the adherence adjust the silk the back end slidable set up in one of them lumen of pipe pipe shaft to on its rear end is connected to the control of setting on brake valve lever, be connected to on the control of peripheral hardware after perhaps passing brake valve lever, after wearing out electrode support, the silk was adjusted to the adherence anterior segment exposes in electrode support's outside to it is inside by fixed that electrode support is got back to to its front end. The silk is adjusted through stimulateeing the adherence backward, electrode support helical shape diameter can be changed by a wide margin to make the screw -tupe radio frequency melt the target lumen of the different diameters of pipe adaptation, and make the electrode adherence on the electrode support in good condition.
Description
Technical field
This utility model relates to a kind of screw type radio frequency ablation catheter with adherent adjustment silk, relates to the radio-frequency (RF) ablation equipment comprising above-mentioned radio frequency ablation catheter simultaneously, belongs to interventional medical device technical field.
Background technology
In radio frequency ablation system, radio frequency ablation catheter is for getting involved human vas and carrying out the Primary Component of radio-frequency (RF) energy release.Wherein, radio-frequency electrode is arranged on the support of radio frequency ablation catheter front end, and support for carrying radio-frequency electrode, and was expanded adherent before radio frequency starts, and radio frequency terminates after-contraction recession.The flexible size of support directly gets involved in human vas due to radio-frequency ablation procedure and carries out, so will adapt with the diameter of human vas.
Blood vessel diameter in human body is different because of the difference of ablation site.Meanwhile, the diameter of human vas also varies with each individual, and such as, the arteriorenal diameter of different human body is greatly between 2 ~ 12mm, and difference is larger.In the prior art, the flexible size of the electrode tip of radio frequency ablation catheter is generally fixing, cannot adapt to the diameter dimension requirement of different human body blood vessel, narrower to the coverage rate of the human vas of different-diameter.Therefore, when carrying out radio-frequency ablation procedure to different patients, usually need change different size, model radio frequency ablation catheter melt.Nonetheless, when also there will be operation in some cases, the problem that radio-frequency electrode cannot be simultaneously adherent, affects surgical effect.
The structure of radio frequency ablation catheter according to electrode different with the shape of electrode suppor be divided into multiple, such as: balloon type, puncture needle-like, screw type and valvular structure etc.Wherein, to be designed to the use of the radio frequency ablation catheter of screw type comparatively extensive for electrode suppor.Existing screw type radio frequency ablation catheter is mainly through shaping in advance to electrode suppor, then under the assistance of guiding catheter/sheath pipe (disclosed in the such as pipe of sheath disclosed in Chinese utility model patent ZL200920172984.6 and Chinese invention application CN201210480777.3 guiding catheter), intravasation is inner, by reach radio frequency ablation catheter, or move guiding catheter/sheath pipe after passing through, radio frequency ablation catheter is shifted out in sheath pipe/guiding catheter, thus makes electrode suppor return to modular shapes behind target approach position.Due to for single radio frequency ablation catheter, the size that electrode suppor formalizes in advance is fixed, and therefore, the adaptability of existing screw type radio frequency ablation catheter to different-diameter blood vessel has limitation.
Summary of the invention
Primary technical problem to be solved in the utility model is to provide a kind of screw type radio frequency ablation catheter with adherent adjustment silk.
Another technical problem to be solved in the utility model is to provide a kind of radio-frequency (RF) ablation equipment comprising above-mentioned radio frequency ablation catheter.
In order to realize above-mentioned technical purpose, this utility model adopts following technical scheme:
A kind of screw type radio frequency ablation catheter with adherent adjustment silk, there is the conduit pipe shaft of strip, be provided with spiral electrode suppor in the front end of described conduit pipe shaft, described electrode suppor is provided with one or more electrode, the rear end of described conduit pipe shaft is provided with joystick; Wherein,
The back segment of described adherent adjustment silk is slidably disposed in one of them tube chamber of described conduit pipe shaft, and its rear end is connected on the control piece that is arranged on described joystick, or is connected on the control piece of peripheral hardware through after described joystick; After the leading portion of described adherent adjustment silk passes described electrode suppor, expose to the outside of described electrode suppor, and to get back to electrode suppor inner and be fixed in its front end.
Wherein more preferably, after electrode suppor inside is got back in the front end of described adherent adjustment silk, the tube chamber through described electrode suppor and described conduit pipe shaft inside is got back to catheter tube and is held after one's death and be fixed on described joystick or be fixed on described control piece.
Or, wherein more preferably, after electrode suppor inside is got back in the front end of described adherent adjustment silk, be fixed on described electrode suppor front end.
Or, wherein more preferably, after electrode suppor inside is got back in the front end of described adherent adjustment silk, pass described electrode suppor front end and be fixed or be limited in outside; Described adherent adjustment silk is supporting wire simultaneously.
Or, wherein more preferably, also comprise the supporting wire be fixedly installed in certain tube chamber of described connecting duct and described electrode suppor, and the front end of described adherent adjustment silk is fixed on supporting wire; Or described adherent adjustment silk is the filament that described supporting wire outwards separates.
Wherein more preferably, described supporting wire is fixed to spiral in the part of described electrode suppor inside, forms spiral sizing section.
Or, wherein more preferably, described adherent adjustment silk exposes between the part of described electrode suppor outside and described electrode suppor exists a fixing point, the front-end and back-end of described adherent adjustment silk are held after one's death from catheter tube respectively and are passed and be fixed on the corresponding control piece that is arranged on described joystick, or are connected on the corresponding control piece of peripheral hardware through after described joystick.
Wherein more preferably, described adherent adjustment silk expose to described electrode suppor outside certain be a bit fixed in the hole of certain spiral section of described electrode suppor.
Or, wherein more preferably, described adherent adjustment silk is made up of multiple thread strands, wherein, the front end of per share silk is fixed on electrode suppor, rear end enters the inside of electrode suppor or conduit pipe shaft after walking around one section of spiral section of electrode suppor from outside, then the tube chamber via conduit pipe shaft passes from the end of conduit pipe shaft, and be fixed on the corresponding control piece that is arranged on described joystick, or be fixed on the corresponding control piece of peripheral hardware through after described joystick, described multiple thread strands is respectively used to carry out independent control to the diameter of the different spiral sections of described electrode suppor.
Wherein more preferably, the fixing point of described multiple thread strands on electrode suppor is different.
Wherein more preferably, in described 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 electrode suppor.
Or wherein more preferably, the fixing point of described multiple thread strands on electrode suppor is identical.
A kind of radio-frequency (RF) ablation equipment, the radio-frequency (RF) ablation main frame comprising above-mentioned radio frequency ablation catheter and be connected with described radio frequency ablation catheter.
The screw type radio frequency ablation catheter of what this utility model provided have adherent adjustment silk, better to the adaptability of the target tube chamber of different-diameter.In the target tube chamber of different-diameter, by pulling adherent adjustment silk, the adhered state of the electrode be arranged on electrode suppor can be made good.In addition, adherent adjustment silk can also adopt the structure of multiple thread strands, by controlling separately monofilament, can realize the control respectively of the different spiral section of radio frequency ablation catheter, simplifying the diameter adjustment difficulty of electrode suppor.
Accompanying drawing explanation
Fig. 1 is in the first screw type radio frequency ablation catheter provided by the utility model, the structural representation of electrode suppor and conduit pipe shaft;
Fig. 2 is in the radio frequency ablation catheter of screw type shown in Fig. 1, the cross sectional representation of electrode suppor;
Fig. 3 is the A-A schematic cross-section of the radio frequency ablation catheter of screw type shown in Fig. 1;
Fig. 3 I is the I portion enlarged diagram of the radio frequency ablation catheter of screw type shown in Fig. 3;
Fig. 4 is in the first embodiment, the schematic diagram of the another kind of set-up mode of adherent adjustment silk;
Fig. 5 is in the first screw type radio frequency ablation catheter provided by the utility model, the structural representation of joystick;
Fig. 6 A is the original state schematic diagram of the radio frequency ablation catheter of screw type shown in Fig. 1;
Fig. 6 B is the schematic side view of screw type radio frequency ablation catheter shown in Fig. 6 A;
Fig. 7 is the view of the radio frequency ablation catheter of screw type shown in Fig. 1 in sheath pipe;
Fig. 8 is that the radio frequency ablation catheter of screw type shown in Fig. 1 is at thinner endovascular using state schematic diagram;
Fig. 9 A is that the radio frequency ablation catheter of screw type shown in Fig. 1 is at thicker endovascular using state schematic diagram;
Fig. 9 B is the schematic side view of screw type radio frequency ablation catheter shown in Fig. 9 A;
Figure 10 is in the second screw type radio frequency ablation catheter, the structural representation of electrode suppor and conduit pipe shaft;
Figure 11 is the using state schematic diagram of the radio frequency ablation catheter of screw type shown in Figure 10;
Figure 12 A is in the second screw type radio frequency ablation catheter, the using state schematic diagram of joystick;
Figure 12 B is in the second screw type radio frequency ablation catheter, the another using state schematic diagram of joystick;
Figure 13 is in the third screw type radio frequency ablation catheter, the structural representation of electrode suppor and conduit pipe shaft;
Figure 14 is in the third screw type radio frequency ablation catheter, the structural representation of supporting wire;
Figure 15 is in the 4th kind of screw type radio frequency ablation catheter, the structural representation of electrode suppor and conduit pipe shaft;
Figure 16 is in the 4th kind of screw type radio frequency ablation catheter, the structural representation of supporting wire and adherent adjustment silk;
Figure 17 A is in the 5th kind of screw type radio frequency ablation catheter, the structural representation of electrode suppor and conduit pipe shaft;
Figure 17 B is the schematic side view of screw type radio frequency ablation catheter shown in Figure 17 A;
Figure 18 A is in the 6th kind of screw type radio frequency ablation catheter, the structural representation of electrode suppor and conduit pipe shaft;
Figure 18 B is the schematic side view of screw type radio frequency ablation catheter shown in Figure 18 A;
Figure 19 is in the 6th kind of screw type radio frequency ablation catheter, the internal structure schematic diagram of electrode suppor;
Figure 20 A is in the 6th kind of screw type radio frequency ablation catheter, adherent adjustment silk post-tensioning, the view after electrode suppor is adherent;
Figure 20 B is the schematic side view of screw type radio frequency ablation catheter shown in Figure 20 A;
Figure 21 is in the 7th kind of screw type radio frequency ablation catheter, the structural representation of adherent adjustment silk;
Figure 22 A is in the 7th kind of screw type radio frequency ablation catheter, the another kind of structural representation of adherent adjustment silk;
Figure 22 B is in the 7th kind of screw type radio frequency ablation catheter, another structural representation of adherent adjustment silk.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technology contents of the present utility model is described in detail further.
First embodiment
Composition graphs 1 to Fig. 5 is known, the screw type radio frequency ablation catheter that this utility model provides, comprise the conduit pipe shaft of strip, be provided with spiral electrode suppor in conduit pipe shaft front end, be provided with joystick 20 (see Fig. 5) in the rear end of conduit pipe shaft.In actual fabrication, electrode suppor can with conduit pipe shaft integral production, electrode suppor is that conduit pipe shaft front end is fixed to spiral part; Electrode suppor also can independently make, and then connects as one with conduit pipe shaft.
As shown in Figure 1, spiral electrode suppor comprises outer tube 1 and the one or more electrodes 2 be arranged on outer tube 1.Electrode 2 can be embedded block type electrode on the excircle of outer tube 1 or ring electrode, the upper surface of electrode 2 can with the flush with outer surface of outer tube 1 or the outer surface a little more than outer tube 1, the upper surface of electrode 2 also can lower than the outer surface of outer tube 1.Circumferentially direction is uniform or not uniform in the spiral type of electrode suppor for multiple electrode 2, and multiple electrode can be more than 1 circle, 1 circle or be less than 1 circle distribution on electrode suppor.
The outer tube 1 of electrode suppor can be single lumen catheter or multi-lumen tube, and outer tube 1 can adopt macromolecular material or metal material to make, such as the material such as rustless steel or memorial alloy.Outer tube 1 can adopt straight tube material, bar processes, and A section also can be used to be made into spiral special shape pipe.As shown in Fig. 2 and Fig. 3 I, when outer tube 1 uses multi-lumen tube, outside the inside of the outer tube 1 of electrode suppor removing central lumen, also be provided with multiple tube chamber, divide in the middle in tube chamber and be respectively arranged with one group of radio frequency line 3 and thermocouple wire 4, the head end often organizing radio frequency line 3 and thermocouple wire 4 is arranged on the inside of single electrode 2, wherein, head end and the electrode 2 of radio frequency line 3 are closely fixed, and realize connecting as used the techniques such as welding, conductive adhesive; Two thermocouple wires 4 head end welding and coated by thermocouple wire head end insulating barrier 5, then insulate with radio frequency line 3 and electrode 2 and arrange.
As shown in Figure 2, in one of them tube chamber of outer tube 1, be also provided with spiral fixed wire 6, spiral fixed wire 6 is fixed in helix-deformed area segments, for the spiral type of support electrode support.Certainly, also directly electrode suppor can be shaped into spiral type, thus save spiral fixed wire 6, such as, when using memorial alloy or macromolecular material to make outer tube, can save and spiral fixed wire 6 is set.
As shown in Figure 3, supporting wire 7 is provided with in the central lumen of the inside of conduit pipe shaft and electrode suppor, supporting wire 7 can be arranged in central lumen actively, also can be fixedly installed in central lumen, or supporting wire 7 also can be arranged in other tube chambers of conduit pipe shaft and electrode suppor.The head end of supporting wire 7 can arrange developing head, for carrying out instant imaging to target tube intracavity portion.Meanwhile, can also arrange soft seal wire 9 in the front end of supporting wire 7, soft seal wire 9 can be the soft seal wire of straight peen, also can be the soft seal wire of illustrated elbow, thus, make this radio frequency ablation catheter can save guiding catheter/sheath pipe, direct intravasation, simplifies operation technique.
Composition graphs 1 to Fig. 5 is known, the inside of conduit pipe shaft is also provided with the tube chamber for holding adherent adjustment silk 8, the back segment of adherent adjustment silk 8 is slidably disposed in one of them tube chamber of conduit pipe shaft, and its rear end 80 passes catheter tube and penetrates joystick 20 after one's death, be connected to after then passing joystick 20 (see Fig. 5) on the control piece 22 of peripheral hardware.Adherent adjustment silk 8 can in the tube chamber of conduit pipe shaft slide anteroposterior.Can be central lumen for holding the tube chamber of adherent adjustment silk 8, also can be of being distributed in the multiple eccentric tube chamber of central lumen periphery.As shown in Figure 1, the leading portion of adherent adjustment silk 8 passes the outside of electrode suppor from the hole 12 near electrode suppor rear end, exposes to the outside of electrode suppor, and its front end is got back to electrode suppor inside from the hole 11 near electrode suppor front end and is fixed.
The fixed position of the front end of adherent adjustment silk 8 can be different, the front end of electrode suppor can be fixed on, also the front end of supporting wire 7 can be fixed on, can also be fixed on spiral fixed wire 6, or, catheter tube can also be got back to through the corresponding tube chamber of electrode suppor and conduit pipe shaft inside to hold after one's death, be fixed on control piece 22 together with the rear end of adherent adjustment silk 8.
Specifically, in the structure shown in Fig. 3, after electrode suppor inside is got back to from the hole 11 near electrode suppor front end in the front end of adherent adjustment silk 8, through the tube chamber of electrode suppor and conduit pipe shaft inside, the rear end of conduit pipe shaft is got back to together with the rear end of adherent adjustment silk 8, then the front-end and back-end of adherent adjustment silk 8 can be fixed on same control piece 22 as shown in Figure 5 in the lump, or, the front-end and back-end of adherent adjustment silk 8, wherein one end is fixed on the housing of joystick 20, and the other end is fixed on control piece 22.By pulling control piece 22, the diameter of electrode suppor spiral section can be changed.
Certainly, the front end of adherent adjustment silk 8 also can be fixed on the front end of electrode suppor simply, or be fixed on a certain position that the front end of supporting wire 7 or supporting wire 7 are positioned at electrode suppor inside, or a certain position be fixed on spiral fixed wire 6, or be fixed in the tube chamber of electrode suppor, as long as play fixation to its front end.Thus when pulling adherent adjustment silk 8 from rear end, under the effect of adherent adjustment silk 8, electrode suppor can shrink distortion, its spiral diameter increases, and multiple spiral axial spacing shrinks.When the front end of adherent adjustment silk 8 is fixed on supporting wire 7 or spiral fixed wire 6, adherent adjustment silk 8 and supporting wire 7/ spiral fixed wire 6 can adopt identical material to make, now can be understood as, adherent adjustment silk 8 is filaments that supporting wire 7/ spiral fixed wire 6 separates backward.
Such as, in the structure shown in Fig. 4, the front end of adherent adjustment silk 8 and the front end of spiral fixed wire 6 are fixed together, now, spiral fixed wire 6 and adherent adjustment silk 8 can be made by filament of the same race, and the Liang Gen filament branch that adherent adjustment silk 8 and spiral fixed wire 6 are its front end respectively to be separated backward, wherein corresponding to the branch of spiral fixed wire 6 is fixed in a certain tube chamber of electrode suppor, and the back segment corresponding to the branch of adherent adjustment silk 8 can slide in the tube chamber of electrode suppor and/or conduit pipe shaft.When adherent adjustment silk 8 and spiral fixed wire 6 adopt unlike material to make, (such as spiral fixed wire 6 uses tubing, adherent adjustment silk 8 uses filament), the front end/leading portion of adherent adjustment silk 8 can be fitted together by modes such as welding, rivet, be bonding with spiral fixed wire 6.
In addition, also can find out from Fig. 5, in said structure, joystick 20 also be provided with button controls 21, the end 70 of supporting wire 7 passes catheter tube and enters joystick 20 after one's death, and is fixed on button controls 21.For the control piece that is connected with the end of supporting wire 7 except being arranged on as shown in the figure except on joystick 20, can also the outside that be arranged on joystick 20 the same as control piece 22, in like manner, for also joystick 20 can be arranged on as button controls 21 with the control piece that adherent adjustment silk 8 connects.
Fig. 6 A to Fig. 9 B shows in the first embodiment that this utility model provides, and screw type radio frequency ablation catheter is at the intraluminal using state schematic diagram of different-diameter.As shown in Figure 6 A and 6 B, with the initial diameter Φ B of spiral electrode support for 10mm, head and the tail electrode axial spacing is the radio frequency ablation catheter of A is example.When in the sheath pipe that it enters Φ 2mm, the form of electrode suppor is as shown in Figure 7 close to linear type.When it stretches out the Ink vessel transfusing entering Φ 4mm in sheath pipe, the diameter of phi B-3 of the screw type of electrode suppor is about 4mm by the restriction of blood vessel diameter, now, electrode is under the natural extension effect of electrode suppor, with tube wall close contact, axial spacing (A-3) >A (see Fig. 8) of head and the tail electrode.As shown in fig. 9 a and fig. 9b, when it stretches out the Ink vessel transfusing entering Φ 12mm in sheath pipe, after electrode suppor natural extension, because its initial diameter Φ B is less than the diameter of target tube chamber, electrode 2 cannot be adherent, now, by pulling back adherent adjustment silk 8, the spiral diameter of electrode suppor can increase to Φ B-4, with the equal diameters of target tube chamber, multiple electrode 2 under the effect of adherent adjustment silk 8, with tube wall close contact.Now, head and the tail electrode axial spacing is decreased to A-4, and the axial spacing of multiple electrode reduces, but due to the diameter of target tube chamber comparatively large, the ablation of multiple electrode also can be avoided to influence each other, thus can not cause and excessively melt.Further, it can also be seen that from the side view shown in Fig. 6 B and Fig. 9 B, equally distributed multiple electrode 2 in the spiral type of electrode suppor, under the effect of adherent adjustment silk 8, its axial spacing reduces, and helix pitch can not change.
Fig. 6 A to Fig. 9 B is illustrated with the electrode suppor that Φ B is 10mm.When the spiral initial diameter of electrode suppor be other values (such as, 6mm, 8mm) time, in like manner, when it enters thinner Ink vessel transfusing, under the effect of spiral type electrode support natural extension, multiple electrode can be simultaneously well adherent, and when its enter diameter be greater than the target tube chamber of spiral type initial diameter time, as shown in fig. 9 a and fig. 9b, by pulling adherent adjustment silk, also can make multiple electrode and tube wall close contact simultaneously, adhered state is good.
Second embodiment
The similar of the radio frequency ablation catheter of radio frequency ablation catheter as shown in Figure 10 and the first embodiment, its contraction state is see Figure 11.Figure 12 A and Figure 12 B is the using state schematic diagram of joystick 20 under different conditions of this radio frequency ablation catheter respectively.
Specifically, in electrode suppor, be provided with spiral fixed wire 6, and be provided with supporting wire 7 in conduit pipe shaft and electrode suppor.Wherein, the outside of electrode suppor is exposed at outside the part that supporting wire 7 is corresponding with electrode suppor, the part that supporting wire 7 is corresponding with conduit pipe shaft is arranged in a certain tube chamber of conduit pipe shaft, and its rear end is from being fixed on after catheter tube wears on the control piece 25 that is arranged on joystick 20.By pulling supporting wire 7, can change the spiral type form of electrode suppor, supporting wire 7 has the effect of adherent adjustment silk 8 simultaneously.In other words, the back segment of adherent adjustment silk 8 is slidably disposed in a certain tube chamber of conduit pipe shaft, and its rear end is connected to joystick 20; Expose to the outside of electrode suppor after the leading portion of adherent adjustment silk 8 passes electrode suppor from hole 12, and after its front end gets back to electrode suppor inside from hole 11, pass electrode suppor front end and be fixed or be limited in outside; Adherent adjustment silk 8 is the supporting wire of conduit pipe shaft simultaneously.In the front end of adherent adjustment silk 8, developing head and/or soft seal wire 9 can be set.
As illustrated in figs. 12 a and 12b, in this embodiment, joystick 20 only can be arranged a control piece 25 be connected with supporting wire 7, now, control piece 25 is for adjusting the retracted position of electrode suppor.By by control piece 25 from the position pusher shown in Figure 12 A to Figure 12 B shown in position, supporting wire 7 can be pulled back, namely pull back adherent adjustment silk 8, the spiral diameter of electrode suppor is increased.
3rd embodiment
The similar of the radio frequency ablation catheter of radio frequency ablation catheter and the first embodiment as shown in fig. 13 that, Figure 14 shows the structure of the supporting wire 7 of the radio frequency ablation catheter in the 3rd embodiment.
In this embodiment, the structure of adherent adjustment silk 8 is identical with the first embodiment.The back segment of adherent adjustment silk 8 is slidably disposed in a certain tube chamber of conduit pipe shaft, and its rear end is connected on the control piece 22 that is arranged on joystick 20 or is connected on the control piece 22 of peripheral hardware after passing joystick 20; The outside of electrode suppor is exposed to after the leading portion of adherent adjustment silk 8 passes electrode suppor from hole 12, and after electrode suppor inside is got back to from hole 11 in its front end, the front end of electrode suppor can be fixed on, also the front end of supporting wire 7 can be fixed on, or, catheter tube can also be got back to through the corresponding tube chamber of electrode suppor and conduit pipe shaft inside to hold after one's death, on the housing being fixed on joystick 20 together with the rear end of adherent adjustment silk 8 or control piece 22.By pulling control piece 22, the diameter of electrode suppor spiral section can be changed.
In this embodiment, independently do not arrange spiral fixed wire, wherein, as shown in figure 14, by shaping in advance, the part making the front portion of supporting wire 7 correspond 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, and the corresponding part of electrode suppor can be made to obtain spiral type.
In the first embodiment and the 3rd embodiment, adherent adjustment silk 8 can be arranged in the same tube chamber of conduit pipe shaft with supporting wire 7 in the lump, also can independently be arranged in the single tube chamber of conduit pipe shaft.
4th embodiment
The similar of the radio frequency ablation catheter of radio frequency ablation catheter as shown in figure 15 and the first embodiment, Figure 16 shows the supporting wire 7 of the radio frequency ablation catheter in the 4th embodiment and the structure of adherent adjustment silk 8, wherein, supporting wire 7, adherent adjustment silk 8 and spiral fixed wire 6 are wholely set.
In this embodiment, conduit pipe shaft and electrode suppor inside are provided with supporting wire 7, and in electrode suppor inside, spiral fixed wire are not independently set.Wherein, as shown in figure 16, by shaping in advance, the part making the front portion of supporting wire 7 correspond to electrode suppor is fixed to screw type, forms spiral sizing section 76.
Adherent adjustment silk 8 is wholely set with supporting wire 7, and the front end of adherent adjustment silk 8 is fixed on supporting wire 7, or adherent adjustment silk 8 is the filaments outwards separated from supporting wire 7.The outside of electrode suppor is exposed to after the leading portion of adherent adjustment silk 8 passes electrode suppor from hole 11, and get back to electrode suppor/conduit pipe shaft from hole 12 inner, then its back segment is got back to catheter tube through a certain tube chamber of conduit pipe shaft inside slidably and is held after one's death, is fixed on control piece 22.By pulling control piece 22, the diameter of electrode suppor spiral section can be changed.
In this embodiment, the back segment of adherent adjustment silk 8 can be arranged in a certain tube chamber of conduit pipe shaft with supporting wire 7 in the lump, also can independently be arranged in another tube chamber of conduit pipe shaft.
5th embodiment
Figure 17 A and Figure 17 B is the structural representation of the radio frequency ablation catheter in the 5th embodiment.
As shown in Fig. 6 B and Fig. 9 B, in the first embodiment in the 4th embodiment, even if adherent adjustment silk 8 is arranged in the eccentric tube chamber of conduit pipe shaft, its part exposing to electrode suppor outside is still positioned at the spiral near center location of electrode suppor.When pulling back adherent adjustment silk 8, electrode suppor generation axial shrinkage, adherent adjustment silk 8 is through spiral center; When the spiral type of electrode suppor is elongated to during close to straight line, adherent adjustment silk 8 exposes to the part of electrode suppor outside with the outer tube 1 of electrode suppor close to parallel.
Different from above-mentioned four embodiments, in the 5th embodiment, adherent adjustment silk 8 is not arranged on the spiral near center location of electrode suppor, but at spiral outer circumferential position eccentric setting.As shown in Figure 17 A and Figure 17 B, when the spiral outer circumferential position eccentric setting of adherent adjustment silk 8 at electrode suppor, adherent adjustment silk 8 exposes to the part of electrode suppor outside not through spiral inside, and is to bypass the side of spiral type outside.When pulling back adherent adjustment silk 8, the circle between electrode suppor holes 11 and 12 or the above spiral section of a circle shrink distortion, become new spiral type, thus increase spiral existing diameter, realize expanded in diameter.
By this kind of set-up mode, greatly can increase the spiral diameter after contraction, ideally, electrode suppor goes for the blood vessel that diameter is greater than the single spiral section diameter of electrode suppor.Because human vas diameter range is fixed, thus the initial diameter of the screw type of electrode suppor in radio frequency ablation catheter significantly can be reduced, facilitate radio frequency ablation catheter intravasation and move in internal blood vessel.
6th embodiment
As Figure 18 A to Figure 20 B is depicted as the structural representation of the radio frequency ablation catheter in the 6th embodiment provided by the utility model, wherein, adherent adjustment silk 8 exposes between the part of electrode suppor outside and electrode suppor exists a fixing point, and the front-end and back-end of adherent adjustment silk 8 are all held after one's death to pass and be fixed on from catheter tube and are arranged on joystick 20 or are located at outward on the corresponding control piece of joystick 20 outside.
As shown in Figure 18 A and Figure 18 B, when adherent adjustment silk 8 is not strained, adherent adjustment silk 8 exposes to the partial relaxation of electrode suppor outside.Adherent adjustment silk 8 expose to electrode suppor outside certain be a bit fixed on certain spiral section of electrode suppor, this point can directly be fixed on outer tube, also can be fixed in the hole be arranged on outer tube.In order to the outer wall that holding electrode support is smooth, avoid fixing point to cause scuffing to target tube chamber, recommend this fixing point to be arranged in the hole of outer tube 1.
Specifically, as shown in figure 19, in this embodiment, a fixing point 13 is there is in adherent adjustment silk 8 with the middle part of electrode suppor, the leading portion 81 of adherent adjustment silk 8 walks around forward electrode suppor outside from fixing point 13, get back to electrode suppor inside from the hole 11 near electrode suppor front end, and get back in joystick 20 via the tube chamber of electrode suppor and conduit pipe shaft inside; The back segment 82 of adherent adjustment silk 8 walks around electrode suppor outside backward from fixing point 13, and gets back to electrode suppor inside from the hole 12 near electrode suppor rear end, and gets back in joystick 20 via the tube chamber of electrode suppor and conduit pipe shaft inside.The leading portion 81 of adherent adjustment silk 8 and back segment 82 can get back to joystick 20 via the same tube chamber in electrode suppor and conduit pipe shaft, also can get back to joystick 20 separately via different tube chambers as shown in figure 19.Joystick 20 can arrange a control piece, for the end of leading portion 81 and the end of back segment 82 of fixing adherent adjustment silk 8, two control pieces also can be set, for the end of the end and back segment 82 of fixing the leading portion 81 of adherent adjustment silk 8 respectively, thus realize the leading portion 81 of adherent adjustment silk 8 and the control respectively of back segment 82.
The leading portion 81 of adherent adjustment silk 8 is for the circle of control electrode support between hole 11 and fixing point 13 or the expanded in diameter of multi-circle spiral flow section, and the back segment 82 of adherent adjustment silk 8 is for the circle of control electrode support between hole 12 and fixing point 13 or the expanded in diameter of multi-circle spiral flow section.As shown in Figure 20 A and Figure 20 B, when the back segment 82 of adherent adjustment silk 8 is strained, fixing point 13 is close to the hole 12 of electrode suppor, be positioned at the diameter of 1 circle spiral section between the two constantly close to the spiral initial diameter of phi B of electrode suppor, obtain better adherent effect, and a new spiral type can be deformed into more than the spiral section of 1 circle, its diameter exceedes the spiral initial diameter of phi B of electrode suppor, and expanded in diameter occurs.In like manner, when the leading portion 81 of adherent adjustment silk 8 is strained, the hole 11 of electrode suppor is close to fixing point 13, be positioned at the diameter of 1 circle spiral section between the two constantly close to the spiral initial diameter of phi B of electrode suppor, obtain better adherent effect, and can be deformed into a new spiral type more than the spiral section of 1 circle, its diameter exceedes the spiral initial diameter of phi B of electrode suppor equally, there is expanded in diameter, thus obtain larger adherent diameter and more excellent adherent effect.
The leading portion 81 of adherent adjustment silk can be controlled by two single control pieces that correspondence is connected with it respectively with the control of back segment 82, thus the independent adjustment realized the diameter of different parts on electrode suppor, also can be controlled in the lump by same control piece, thus realize the control to the expanded in diameter of multiple spiral section entirety of electrode suppor.And, when the adherent end of adjustment silk leading portion 81 and the end of back segment 82 are separately fixed on different control pieces, by pulling leading portion 81 and the back segment 82 of adherent adjustment silk simultaneously, also the different parts of electrode suppor can be made to be out of shape simultaneously, thus reach the diameter of whole electrode suppor is adjusted, make it reach axial shrinkage effect as shown in FIG. 20 A, the screw diameter after its expanded in diameter can reach effect as shown in fig. 20b.Because the leading portion 81 of adherent adjustment silk 8 and back segment 82 can distinguish control electrode support between hole 12 and fixing point 13, and the expanded in diameter of a circle between hole 11 and fixing point 13 or multi-circle spiral flow section.Make the diameter after expansion equal the green diameter be even greater than as shown in figure 18b, thus more excellent adherent effect can be obtained, and the target tube chamber with wider diameter change can be taken into account.
7th embodiment
In the 7th embodiment, the adherent adjustment silk 8 being arranged on radio frequency ablation catheter inside is made up of multiple thread strands, wherein, the front end of per share silk is fixed on electrode suppor, rear end enters the inside of electrode suppor or conduit pipe shaft after walking around one section of spiral section of electrode suppor from outside, then the tube chamber via conduit pipe shaft passes from the end of conduit pipe shaft, and be fixed on and be arranged on the corresponding control piece of joystick 20, or be fixed on the corresponding control piece of peripheral hardware through after joystick 20, multiple thread strands is respectively used to carry out independent control to the diameter of the different spiral sections of electrode suppor.
In the structure shown in Figure 21, adherent adjustment silk 8 is made up of two strands of silks 84 and 85, its front end be jointly fixed on electrode suppor certain a bit on, form fixing point 83, the different spiral sections that rear end walks around electrode suppor respectively enter the inside of electrode suppor or conduit pipe shaft, and get back to rear end via the tube chamber of electrode suppor and conduit pipe shaft inside and be fixed on the corresponding control piece in joystick 20.This structure with the adherent adjustment silk 8 of two strands of silks is substantially identical with the structure of the 6th embodiment, all can be used for the expanded in diameter of separately control electrode support leading portion and back segment spiral section.Or also directly the structure in the 6th embodiment can be regarded as in the 7th embodiment, adherent adjustment silk 8 adopts the situation of two strands of silks to understand.
When adherent adjustment silk 8 has the silk of more than two strands, its one front end every is fixed on electrode suppor, part near front end (namely near fixing point) exposes to electrode suppor outside, rear end enters electrode suppor inside from the hole being arranged on electrode suppor diverse location, and get back to joystick 20 via the same tube chamber of electrode suppor and conduit pipe shaft inside or different tube chamber, and be fixed on corresponding control piece.Wherein, the fixing point of multiple thread strands on electrode suppor can be identical, can be different, also can be incomplete same.When the fixing point of multiple thread strands on electrode suppor is incomplete same, every two strands of silks can have a public fixing point on electrode suppor, and the vibrational power flow of two strands of silks can with reference to the structure shown in Figure 21.When the fixing point of multiple thread strands on electrode suppor is identical, can as shown in fig. 22 the front end of different silk be fixed in the front-end A of electrode suppor, then the rear end of per share silk is made to enter electrode suppor inside from different hole B, C, the D electrode suppor and more hole respectively, and pass from conduit pipe shaft end via electrode suppor and conduit pipe shaft, the end E of multiple thread strands is separately fixed on corresponding control piece; Also can be as shown in Figure 22 B, the front end of different silk is fixed on the side D ' at electrode suppor rear portion, then make the rear end of per share silk from electrode suppor be positioned at anterior different hole A ', B ', C ' and more porous enter electrode suppor inside, and pass from conduit pipe shaft end via electrode suppor and conduit pipe shaft, the end E ' of multiple thread strands be separately fixed at be arranged on joystick 20 corresponding control piece on or peripheral hardware corresponding control piece on.Per share silk enters the inside of electrode suppor from the diverse location electrode suppor, thus can by the diameter change pulling single silk to control the spiral section between fixing point in this front end and this position entering electrode suppor.Certainly, above-mentioned multiple thread strands also can be fixed on the same control piece of joystick 20, thus realizes adjusting the diameter of electrode suppor entirety.
When using multiple control piece to control respectively the different spiral section of electrode suppor, behind this radio frequency ablation catheter target approach position, segment expansion can be carried out as required to the corresponding spiral section of electrode suppor, namely only expansion needs the spiral section of radio frequency, thus increase the motility of the different spiral section diameter adjustment of electrode suppor, and reduce the difficulty of the adherent adjustment of radio frequency ablation catheter.
In sum, in screw type radio frequency ablation catheter, being provided with adherent adjustment silk, by pulling back adherent adjustment silk, the spiral diameter of electrode suppor can being changed, thus improve the adhered state of electrode, make this radio frequency ablation catheter be applicable to the blood vessel of different-diameter.In addition, above-mentioned adherent adjustment silk can also adopt the structure of multiple thread strands, thus realizes the control respectively of the different spiral section of radio frequency ablation catheter, simplifies the difficulty of diameter adjustment.
In actual clinical treatment, radio frequency ablation catheter provided by the utility model and radio-frequency (RF) ablation equipment can be applied to the nerve ablation of different parts, multiple different-diameter blood vessel or trachea.Such as, be applied to nerve ablation treatment obstinate hypertension in renal artery, be applied to nerve ablation treatment diabetics in coeliac artery, and for example, be applied to trachea/bronchus vagus nerve branch ablation asthmatic patient, and be applied to duodenum vagus nerve branch ablation duodenal ulcer patients; In addition, other blood vessels or the endotracheal nerve ablation such as renal pelvis is interior, pulmonary artery is interior can also be used for.It should be noted that, radio frequency ablation catheter provided by the utility model is not limited to the above-mentioned application enumerated in clinical treatment, also can be used for the nerve ablation at other positions.
Introduce the radio frequency ablation catheter that this utility model provides above, this utility model provides the radio-frequency (RF) ablation equipment comprising above-mentioned radio frequency ablation catheter simultaneously.The removing of this radio-frequency (RF) ablation equipment comprises outside above-mentioned radio frequency ablation catheter, also comprises the radio-frequency (RF) ablation main frame be connected with above-mentioned radio frequency ablation catheter.Wherein, the adherent adjustment silk of electrode suppor inside through catheter tube after one's death correspondence be connected on joystick, pull adherent adjustment silk can change the shape of electrode suppor by joystick, make electrode suppor well adherent at the target tube intracavity of different-diameter.Further, the radio frequency line in electrode suppor, thermocouple wire are connected in the corresponding circuits in radio-frequency (RF) ablation main frame respectively by conduit pipe shaft, thus realize radio-frequency (RF) ablation main frame to the radio frequency control of multiple electrode and temperature monitoring.Because the setting of joystick and arranging of radio-frequency (RF) ablation main frame can be published in first patent application see the applicant, no longer its concrete structure is described in detail at this.
The screw type radio frequency ablation catheter having an adherent adjustment silk to provided by the utility model above and equipment thereof have been described in detail.For one of ordinary skill in the art, to any apparent change that it does under the prerequisite not deviating from this utility model connotation, the scope of this utility model protection all should be belonged to.
Claims (30)
1. one kind has the screw type radio frequency ablation catheter of adherent adjustment silk, there is the conduit pipe shaft of strip, be provided with spiral electrode suppor in the front end of described conduit pipe shaft, described electrode suppor is provided with one or more electrode, the rear end of described conduit pipe shaft is provided with joystick; It is characterized in that:
The back segment of described adherent adjustment silk is slidably disposed in one of them tube chamber of described conduit pipe shaft, and its rear end is connected on the control piece that is arranged on described joystick, or is connected on the control piece of peripheral hardware through after described joystick; After the leading portion of described adherent adjustment silk passes described electrode suppor, expose to the outside of described electrode suppor, and to get back to electrode suppor inner and be fixed in its front end.
2. screw type radio frequency ablation catheter as claimed in claim 1, is characterized in that:
After electrode suppor inside is got back in the front end of described adherent adjustment silk, the tube chamber through described electrode suppor and described conduit pipe shaft inside is got back to catheter tube and is held after one's death, and is fixed on described joystick or is fixed on described control piece.
3. screw type radio frequency ablation catheter as claimed in claim 1, is characterized in that:
After electrode suppor inside is got back in the front end of described adherent adjustment silk, be fixed on described electrode suppor front end.
4. screw type radio frequency ablation catheter as claimed in claim 2 or claim 3, is characterized in that:
Also comprise the supporting wire in a certain tube chamber being slidably arranged in described conduit pipe shaft and described electrode suppor.
5. screw type radio frequency ablation catheter as claimed in claim 4, is characterized in that:
Also comprise the spiral fixed wire being arranged on described electrode suppor inside.
6. screw type radio frequency ablation catheter as claimed in claim 4, is characterized in that:
The front end of described supporting wire is provided with developing head and/or soft seal wire.
7. screw type radio frequency ablation catheter as claimed in claim 4, is characterized in that:
On described joystick or described joystick outside be also provided with for end fixed second control piece with described supporting wire.
8. screw type radio frequency ablation catheter as claimed in claim 2 or claim 3, is characterized in that:
Also comprise the supporting wire in a certain tube chamber being fixedly installed on described conduit pipe shaft and described electrode suppor, described supporting wire is fixed to screw type in the part of described electrode suppor inside, forms spiral sizing section.
9. screw type radio frequency ablation catheter as claimed in claim 1, is characterized in that:
After electrode suppor inside is got back in the front end of described adherent adjustment silk, pass described electrode suppor front end and be fixed or be limited in outside; Described adherent adjustment silk is supporting wire simultaneously.
10. screw type radio frequency ablation catheter as claimed in claim 9, is characterized in that:
The front end of described adherent adjustment silk is provided with developing head and/or soft seal wire.
11. screw type radio frequency ablation catheters as claimed in claim 10, is characterized in that:
Also comprise the spiral fixed wire being arranged on described electrode suppor inside.
12. screw type radio frequency ablation catheters as claimed in claim 1, is characterized in that:
Also comprise the supporting wire be arranged in certain tube chamber of described connecting duct and described electrode suppor, and the front end of described adherent adjustment silk is fixed on supporting wire; Or described adherent adjustment silk is the filament that described supporting wire outwards separates.
13. screw type radio frequency ablation catheters as claimed in claim 12, is characterized in that:
Described supporting wire is fixed to screw type in the part of described electrode suppor inside, forms spiral sizing section.
14. screw type radio frequency ablation catheters as claimed in claim 1, is characterized in that:
The part that described adherent adjustment silk exposes to electrode suppor outside is arranged on spiral center.
15. screw type radio frequency ablation catheters as claimed in claim 1, is characterized in that:
Described adherent adjustment silk exposes to the part of described electrode suppor outside at the outer circumferential position eccentric setting away from spiral type center.
16. screw type radio frequency ablation catheters as claimed in claim 1, is characterized in that:
Described electrode suppor comprises outer tube, and the excircle of described outer tube is embedded with electrode, and the inside of described outer tube is provided with one or more tube chamber, is wherein respectively arranged with one group of thermocouple wire and radio frequency line in part tube chamber; The inside of each described electrode is provided with one group of radio frequency line and thermocouple wire, described radio frequency line and described Electrode connection, and described thermocouple wire and described electrode insulation are arranged.
17. screw type radio frequency ablation catheters as claimed in claim 1, is characterized in that:
Described adherent adjustment silk exposes between the part of described electrode suppor outside and described electrode suppor exists a fixing point, the front-end and back-end of described adherent adjustment silk are held after one's death from catheter tube respectively and are passed and be fixed on the corresponding control piece that is arranged on described joystick, or are connected on the corresponding control piece of peripheral hardware through after described joystick.
18. screw type radio frequency ablation catheters as claimed in claim 17, is characterized in that:
Described adherent adjustment silk expose to described electrode suppor outside certain be a bit fixed in the hole of certain spiral section of described electrode suppor.
19. screw type radio frequency ablation catheters as claimed in claim 1, is characterized in that:
Described adherent adjustment silk is made up of multiple thread strands, wherein, the front end of per share silk is fixed on electrode suppor, rear end enters the inside of electrode suppor or conduit pipe shaft after walking around one section of spiral section of electrode suppor from outside, then the tube chamber via conduit pipe shaft passes from the end of conduit pipe shaft, and be fixed on the corresponding control piece that is arranged on described joystick, or be connected on the corresponding control piece of peripheral hardware through after described joystick, described multiple thread strands is respectively used to carry out independent control to the diameter of the different spiral sections of described electrode suppor.
20. screw type radio frequency ablation catheters as claimed in claim 19, is characterized in that:
The fixing point of described multiple thread strands on electrode suppor is different.
21. screw type radio frequency ablation catheters as claimed in claim 19, is characterized in that:
In described multiple thread strands, every two strands of silks have a public fixing point on electrode suppor.
22. screw type radio frequency ablation catheters as claimed in claim 19, is characterized in that:
Per share silk enters the inside of electrode suppor from the diverse location electrode suppor.
23. screw type radio frequency ablation catheters as claimed in claim 19, is characterized in that:
The fixing point of described multiple thread strands on electrode suppor is identical.
24. 1 kinds of screw type radio frequency ablation catheters with adherent adjustment silk, there is the conduit pipe shaft of strip, be provided with spiral electrode suppor in the front end of described conduit pipe shaft, described electrode suppor is provided with one or more electrode, the rear end of described conduit pipe shaft is provided with joystick; It is characterized in that:
Described adherent adjustment silk is made up of multiple thread strands, wherein, the front end of per share silk is fixed on electrode suppor, rear end enters the inside of electrode suppor or conduit pipe shaft after walking around one section of spiral section of electrode suppor from outside, then the tube chamber via conduit pipe shaft passes from the end of conduit pipe shaft, and be fixed on the corresponding control piece that is arranged on described joystick, or be connected on the corresponding control piece of peripheral hardware through after described joystick, described multiple thread strands is respectively used to carry out independent control to the diameter of the different spiral sections of described electrode suppor.
25. screw type radio frequency ablation catheters as claimed in claim 24, is characterized in that:
The fixing point of described multiple thread strands on electrode suppor is different.
26. screw type radio frequency ablation catheters as claimed in claim 24, is characterized in that:
In described multiple thread strands, every two strands of silks have a public fixing point on electrode suppor.
27. screw type radio frequency ablation catheters as claimed in claim 24, is characterized in that:
Per share silk enters the inside of electrode suppor from the diverse location electrode suppor.
28. screw type radio frequency ablation catheters as claimed in claim 24, is characterized in that:
The fixing point of described multiple thread strands on electrode suppor is identical.
29. screw type radio frequency ablation catheters as claimed in claim 24, is characterized in that:
Described electrode suppor comprises outer tube, and the excircle of described outer tube is embedded with electrode, and the inside of described outer tube is provided with one or more tube chamber, is wherein respectively arranged with one group of thermocouple wire and radio frequency line in part tube chamber; The inside of each described electrode is provided with one group of radio frequency line and thermocouple wire, described radio frequency line and described Electrode connection, and described thermocouple wire and described electrode insulation are arranged.
30. 1 kinds of radio-frequency (RF) ablation equipment, is characterized in that the radio frequency ablation catheter comprised in claim 1 ~ 29 described in any one, and the radio-frequency (RF) ablation main frame be connected with described radio frequency ablation catheter.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520433569.7U CN204734547U (en) | 2015-03-23 | 2015-06-19 | Screw -tupe radio frequency melts pipe and equipment with silk is adjusted to adherence |
| PCT/CN2016/073378 WO2016124138A1 (en) | 2015-02-03 | 2016-02-03 | Radio-frequency ablation catheter having spiral structure, and equipment thereof |
| EP16746133.4A EP3254635B1 (en) | 2015-02-03 | 2016-02-03 | Radio-frequency ablation catheter having spiral structure, and equipment thereof |
| ES16746133T ES2955930T3 (en) | 2015-02-03 | 2016-02-03 | Radiofrequency ablation catheter with spiral structure and equipment thereof |
| EP18162451.1A EP3360497A1 (en) | 2015-02-03 | 2016-02-03 | Radio-frequency ablation catheter having spiral structure and device thereof |
| US15/548,672 US10646272B2 (en) | 2015-02-03 | 2016-02-03 | Radio-frequency ablation catheter having spiral structure and device thereof |
| JP2017558612A JP6716607B2 (en) | 2015-02-03 | 2016-02-03 | High-frequency ablation catheter with spiral structure and its equipment |
| JP2020072220A JP6987920B2 (en) | 2015-02-03 | 2020-04-14 | High frequency ablation catheter with spiral structure and its equipment |
Applications Claiming Priority (2)
| 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 |
| CN201520433569.7U CN204734547U (en) | 2015-03-23 | 2015-06-19 | Screw -tupe radio frequency melts pipe and equipment with silk is adjusted to adherence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204734547U true CN204734547U (en) | 2015-11-04 |
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 |
| CN201710922462.2A Active CN107569283B (en) | 2015-03-23 | 2015-06-19 | Spiral radiofrequency ablation catheter with adherent adjusting wire and equipment thereof |
| 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 |
| CN201510350172.6A Active CN104939918B (en) | 2015-02-03 | 2015-06-19 | Screw type radio frequency ablation catheter and its equipment with adherent regulation silk |
| CN201710937875.8A Active CN107595382B (en) | 2015-03-23 | 2015-06-19 | Spiral radiofrequency ablation catheter with adherent adjusting wire and equipment thereof |
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 |
| CN201710922462.2A Active CN107569283B (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 |
| CN201710937875.8A Active CN107595382B (en) | 2015-03-23 | 2015-06-19 | Spiral radiofrequency ablation catheter with adherent adjusting wire and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN104688334A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939918A (en) * | 2015-03-23 | 2015-09-30 | 上海魅丽纬叶医疗科技有限公司 | Spiral radiofrequency ablation catheter with adherent adjusting wire and radiofrequency ablation equipment |
| WO2016124138A1 (en) * | 2015-02-03 | 2016-08-11 | 上海魅丽纬叶医疗科技有限公司 | Radio-frequency ablation catheter having spiral structure, and equipment thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114569232B (en) * | 2022-04-11 | 2023-05-05 | 上海安通医疗科技有限公司 | Ultrasonic ablation catheter |
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| US6542781B1 (en) * | 1999-11-22 | 2003-04-01 | Scimed Life Systems, Inc. | Loop structures for supporting diagnostic and therapeutic elements in contact with body tissue |
| US6613046B1 (en) * | 1999-11-22 | 2003-09-02 | Scimed Life Systems, Inc. | Loop structures for supporting diagnostic and therapeutic elements in contact with body tissue |
| US6711444B2 (en) * | 1999-11-22 | 2004-03-23 | Scimed Life Systems, Inc. | Methods of deploying helical diagnostic and therapeutic element supporting structures within the body |
| AU2006262447A1 (en) * | 2005-06-20 | 2007-01-04 | Medtronic Ablation Frontiers Llc | Ablation catheter |
| CN201469401U (en) * | 2009-08-21 | 2010-05-19 | 刘小青 | Spiral renal-artery-around renal sympathetic nerve radio-frequency ablation electrode catheter |
| US9387035B2 (en) * | 2009-08-25 | 2016-07-12 | Medtronic Ablation Frontiers Llc | Bi-modal catheter steering mechanism |
| US10064678B2 (en) * | 2011-10-26 | 2018-09-04 | Medtronic Ablation Frontiers Llc | Semi-circular pulmonary vein ablation catheter |
| CN202458660U (en) * | 2011-12-15 | 2012-10-03 | 四川锦江电子科技有限公司 | Controllable spiral electrophysiology catheter |
| CN102488552B (en) * | 2011-12-15 | 2015-04-15 | 四川锦江电子科技有限公司 | Manageable spiral electrophysiology catheter |
| CN103830001B (en) * | 2012-11-23 | 2016-12-21 | 四川锦江电子科技有限公司 | Controllable bending spiral ablation catheter |
| US9848948B2 (en) * | 2013-03-15 | 2017-12-26 | Biosense Webster (Israel) Ltd. | Catheter adapted for use with guide wire for accessing vessels |
| EP2986229A4 (en) * | 2013-04-16 | 2016-09-28 | Transmed7 Llc | Methods, devices and therapeutic platform for automated, selectable, soft tissue resection |
| CN203815580U (en) * | 2014-04-22 | 2014-09-10 | 上海微创电生理医疗科技有限公司 | Renal artery radio-frequency ablation electrode catheter |
| 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 |
-
2015
- 2015-03-23 CN CN201510129947.7A patent/CN104688334A/en active Pending
- 2015-06-19 CN CN201710922462.2A patent/CN107569283B/en active Active
- 2015-06-19 CN CN201520433569.7U patent/CN204734547U/en not_active Withdrawn - After Issue
- 2015-06-19 CN CN201510350172.6A patent/CN104939918B/en active Active
- 2015-06-19 CN CN201710937875.8A patent/CN107595382B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016124138A1 (en) * | 2015-02-03 | 2016-08-11 | 上海魅丽纬叶医疗科技有限公司 | Radio-frequency ablation catheter having spiral structure, and equipment thereof |
| US10646272B2 (en) | 2015-02-03 | 2020-05-12 | Shanghai Golden Leaf Med Tec Co., Ltd. | Radio-frequency ablation catheter having spiral structure and device thereof |
| CN104939918A (en) * | 2015-03-23 | 2015-09-30 | 上海魅丽纬叶医疗科技有限公司 | Spiral radiofrequency ablation catheter with adherent adjusting wire and radiofrequency ablation equipment |
| CN104939918B (en) * | 2015-03-23 | 2017-11-21 | 上海魅丽纬叶医疗科技有限公司 | Screw type radio frequency ablation catheter and its equipment with adherent regulation silk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107569283A (en) | 2018-01-12 |
| CN104939918B (en) | 2017-11-21 |
| CN104688334A (en) | 2015-06-10 |
| CN107569283B (en) | 2020-12-04 |
| CN107595382B (en) | 2020-09-01 |
| CN104939918A (en) | 2015-09-30 |
| CN107595382A (en) | 2018-01-19 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151104 Effective date of abandoning: 20171121 |