CN103300917A - Percutaneous coronary intervention radio frequency ablation electrode catheter - Google Patents
Percutaneous coronary intervention radio frequency ablation electrode catheter Download PDFInfo
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- CN103300917A CN103300917A CN2013102141298A CN201310214129A CN103300917A CN 103300917 A CN103300917 A CN 103300917A CN 2013102141298 A CN2013102141298 A CN 2013102141298A CN 201310214129 A CN201310214129 A CN 201310214129A CN 103300917 A CN103300917 A CN 103300917A
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Abstract
The invention relates to a percutaneous coronary intervention radio frequency ablation electrode catheter which comprises an outer pipe, a core pipe, a handle, a core pipe handle, electrodes, guide wires and electrode plugs, wherein the core pipe is arranged in the outer pipe; the handle is fixedly connected with the near end of the outer pipe; the core pipe handle is fixedly connected with the near end of the core pipe; the guide wires are connected with the electrodes; the electrode plugs are connected with a radio frequency ablatograph; the far end of the outer pipe is provided with an electrode bearing device; the far end of the outer pipe is fixedly connected with that of the core pipe; the electrode bearing device is provided with a plurality of strips; the strips are distributed in the circumferential direction of the outer pipe and are arranged in a staggered manner in the axial direction; the electrodes are fixed at the middle parts of the strips; and when the outer pipe and the core pipe oppositely move, the electrodes on the strips are hunched up in the radial direction and are distributed in a staggered manner. The radio frequency ablation electrode catheter greatly reduces damage to renal artery and moreover, the maximum diameter of the electrode bearing device at the far end of the radio frequency ablation electrode catheter can be correspondingly regulated according to the diameter of the blood vessel of a patient.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to a kind of by going the kidney sympathetic nerve to treat the frequency ablation electrode catheter that hypertensive percutaneous is got involved.
Background technology
Hypertension is to have a strong impact on people's life quality and life-threatening common disease, also is that the whole world causes dead Etiological, and the annual whole world seven million peoples are dead because of hypertension.Point out in " Chinese residents nutrition and the investigation of health conditions report " of issuing in information office of State Council on the 12nd news briefing October in 2004: China's adult hypertension prevalence is 18.8%, and crowd's hypertension awareness, treatment rate and control rate only are 30.2%, 24.7% and 6.1%.Even in the U.S., the control rate of hypertension treatment in recent years is less than 30% also.At present, China is one of the most serious country of in the world hypertension harm, estimates that national hyperpietic surpasses 200,000,000.
Popular hypertension therapeutic is Drug therapy both at home and abroad.The purpose of its treatment be by drug effect in the links that causes hypertension, disturb the lot of essential factors cause hypertension in the body and control blood pressure; Treat used medicine wherein of greatest concern and what play a major role is calcium channel blocker, angiotensin-convertion enzyme inhibitor and angiotensin ii receptor antagonist, and two class medicines are main after outstanding, and the effect of these rear two class medicines is all in renin-angiotensin system.The treatment of the Long term combined medication of such medicine, will not only need long-term taking and also expensive, side effect outstanding, most importantly because of its individual variation, side effect is more, control rate is not good, causes its therapeutic effect still undesirable.Particularly intractable hypertension is more common clinically, and paathogenic factor is numerous, and pathogenesis is indefinite, and medication effect is very poor.
Medical circle thinks always, and sympathetic activation and the hypertension of kidney are in close relations.When the sympathetic nerve of kidney was overexcited, renal blood vessels was shunk, and reduced the excretion of kidney, moisture and salt are detained in vivo, promote simultaneously the renal secretion feritin, caused the increase of blood Angiotensin-Converting II and aldosterone, then two kinds of materials, the just factor of hypertension.Early stage research is the method that adopts excision domination kidney sympathetic ganglion, though the method can reach the purpose of blood pressure lowering, but damage is large, and complication is many.In March, 2009, in the 58th science conference of american heart institute (ACC) that Global Home Textiles is held, professor Krum of Australia Monash university proposed a kind of brand-new treatment intractable hypertension non-pharmaceutical method---radio-frequency (RF) ablation is removed the sympathetic nerve of domination kidney, namely by femoral artery puncture and angiography, special radio frequency ablation catheter is imported renal artery, send the sympathetic nerve of radio-frequency (RF) energy destruction domination kidney and treat hypertension, thereby significantly reduce intractable hypertension patient's blood pressure.The theoretical basis of this Treatment of Hypertension new method is: the sympathetic nerve of kidney imports the superficial place that is distributed in renal artery wall below with efferent fiber into, its active and hypertensive generation and keep closely relatedly carry out in the renal artery part that radio-frequency (RF) ablation can be damaged the kidney sympathetic nerve and the nervous tissue of not involving other abdominal paries, pelvic cavity or lower limb.Curative effect aspect, research through the observation of December as can be known, when treating rear 1 month, patient's blood pressure obviously reduces, its blood pressure further reduces in the time of 3 months, the effect of Blood pressure drop highly significant is not still also found simultaneously obvious neuranagenesis in the time of 1 year.This shows the easy and safety of this therapy method.
Therefore, utilize and to go to kidney sympathetic nerve radio frequency ablation catheter system in the renal artery tube chamber, to transmit radio-frequency (RF) energy, melt around arteriorenal kidney and import sympathetic nerve into and kidney spreads out of orthosympathetic research and reports increasing.Initial radio frequency ablation catheter mostly is unipolar structure, in order to cut off around arteriorenal kidney sympathetic nerve, must repeatedly repeatedly melt around renal artery, this need to repeat the ablating electrode that is against renal artery inner membrance place (emitter) is positioned, and radio frequency need to repeatedly occur, to having relatively high expectations of conduit operation, also may miss some kidney sympathetic nerve, cause treatment not exclusively.In order to reach better therapeutic effect, people attempt adopting diverse ways and technology, for example, when carrying out radiofrequency ablation therapy with the renal artery ablation catheter, doctor's control crank makes it the far-end stretch bending of ablation catheter fit with the renal artery blood vessel wall, turn-knob on the turning handle is controlled the rotation of ablation catheter far-end simultaneously, mobile ablation locations, reach at different parts and melt, yet, usually when the sympathetic nerve on the renal artery is melted, must set the sympathetic nerve that higher power and high impedance just can interrupt the renal artery blood vessel, therefore impedance damages very large to blood vessel up to 300 Ω during radio-frequency (RF) ablation.For example, the research staff attempts adopting and electrode is embedded into multiple spot melts (such as the renal artery ablation catheter of VESSIX company) simultaneously on the sacculus of renal artery ablation catheter far-end, but adopt this mode of foley's tube to go kidney sympathetic nerve radio-frequency (RF) ablation, to in the process of radio-frequency (RF) ablation, hinder arteriorenal blood flow, if operating time is long, will the induced renal damage function, and this Product Process is complicated, and cost is high.For example, the patent No. provides a kind of spiral ring renal-artery-around renal sympathetic nerve frequency ablation electrode catheter for the Chinese patent of ZL200920172984.6, and it adopts spiral helicine ablating electrode, blood vessel wall is formed the Continuous Contact of a non-closed-loop.But this patent only has the screw electrode of a fixed diameter, and the femoral artery puncture of need going ahead of the rest during use under the transmission of X-ray contrast machine, according to the renal arteriography result, is selected the product that is fit to the patient again from the product of different diameters.Patient suffering's time is long, and operative procedure is complicated, and doctor's operation easier is large.Also have to adopt the ARR ablation catheter for the treatment of to melt sympathetic nerve on the renal artery in the prior art, to reach the purpose for the treatment of intractable hypertension, this kind ablation catheter diameter is thicker, in the renal artery blood vessel, handle inconvenient, and it is larger to melt area, and renal artery is caused larger damage.
Therefore, be badly in need of now a kind of can reducing arteriorenal damage, the doctor is easy to operate, and the applicable different patients' of same specification radio frequency ablation catheter.
Summary of the invention
The purpose of this invention is to provide the frequency ablation electrode catheter that a kind of percutaneous is got involved, this frequency ablation electrode catheter greatly reduces arteriorenal damage, and the maximum gauge of the electrode bogey of the far-end of this radio frequency ablation catheter can correspondingly be adjusted according to patient's blood vessel diameter.
The objective of the invention is to be achieved through the following technical solutions:
The frequency ablation electrode catheter that a kind of percutaneous is got involved, comprise: outer tube, be arranged on the core pipe in the described outer tube, the handle that is fixedly connected with the near-end of described outer tube, the core pipe handle that is fixedly connected with the near-end of described core pipe, electrode, the seal wire and the electrode plug that is connected with radiofrequency melting instrument that link to each other with described electrode, the far-end of described outer tube is provided with the electrode bogey, the far-end of described electrode bogey is fixedly connected with the far-end of described core pipe, described electrode bogey has a plurality of bars, described a plurality of bar is along the circumferential vertically Heterogeneous Permutation that distributes also of described outer tube, described electrode is fixed on the middle part of described bar, when described outer tube and described core pipe moved in opposite directions, the described electrode on the described bar radially arched upward and is dislocatedly distributed.
Purpose of the present invention can also further realize by following technical scheme:
Preferably, described electrode bogey and described outer tube are the integral type structure, the described bar in the described electrode bogey be with the far-end of described outer tube vertically directly cutting form.
Preferably, described electrode bogey is tubular structure, axial cutting along described tubular structure forms a plurality of bars, and the near-end of described tubular structure is fixedly connected with the far-end of described outer tube, and the far-end of described tubular structure is fixedly connected with the far-end of described core pipe.
Preferably, described electrode bogey is comprised of a plurality of bars, and the near-end of each bar is fixedly connected with the far-end of described outer tube, and the far-end of each bar is fixedly connected with the far-end of described core pipe.
Preferably, the equal in length of described bar and parallel to each other, described bar is band or silk.
Preferably, described electrode is laminated structure or circulus, and described electrode is fixed on the described bar by gluing or hot mode of melting.
Preferred, the two ends of described laminated structure are embedded in the described bar by the mode of hot melt.
Preferably, described core pipe is hollow structure.
Preferably, described outer tube is multi-lumen tube, and the tube chamber that the near-end of described seal wire passes described multi-lumen tube links to each other with described electrode plug.
Preferably, be provided with locking device at described handle, when the mobile in opposite directions so that size that described bar is radially expanded of described outer tube and described core pipe satisfies requirements of operation, lock described core pipe, it can not moved relative to outer tube.
Preferably, be provided with to point out the mark line of the height that described electrode arches upward at the near-end of described core pipe.
Preferably, the frequency ablation electrode catheter that described percutaneous is got involved also comprises the accent bending apparatus, described accent bending apparatus comprises the accent curved hand grip, transfer curved knob, fixture, regulate silk and lid, be provided with chute at described accent curved hand grip, described fixture is arranged in the described chute, the curved knob sleeve of described accent the outside of the described chute of described regulating handle and with described fixture threaded engagement, the described near-end of regulating silk is fixed on the described fixture, the described far-end of regulating silk is fixed on the far-end of described outer tube, described lid is arranged at the near-end of described accent curved hand grip, and be connected with the curved knob buckle of described accent, to limit the position of the curved knob of described accent.
Preferably, be provided with pressure transducer and/or temperature sensor at described bar, described pressure transducer and/or temperature sensor link to each other with described electrode plug by seal wire.
Compare characteristics of the present invention and progressive as follows with prior art:
1, the far-end of the radio frequency ablation catheter of percutaneous intervention of the present invention has a plurality of along the circumferential vertically electrode of Heterogeneous Permutation that distributes also of outer tube, therefore the electrode that arches upward in ablation procedure contacts with the dislocation of renal artery vascularization point-like, has reduced arteriorenal damage.
2, the radio frequency ablation catheter of percutaneous intervention of the present invention has a plurality of electrodes, and these a plurality of electrodes can melt according to sufferer situation while or combination, had reduced the time of operation.
3, the radio frequency ablation catheter of percutaneous intervention of the present invention, electrode is arranged on the middle part of a plurality of bars, by the mobile core pipe, the electrode at the middle part of a plurality of bars radially arches upward, so that described electrode comes close to or in contact with the inner membrance of patient's renal artery blood vessel, therefore, can regulate the maximum gauge of the electrode bogey of the radio frequency ablation catheter that percutaneous gets involved by the mobile core pipe, the same specification of radio frequency ablation catheter that percutaneous of the present invention is got involved can satisfy the needs of the patient with different renal artery diameters.
4, in the radio frequency ablation catheter course of conveying that percutaneous of the present invention is got involved, the bar of described electrode bogey is close to described core pipe, so that the entire outer diameter of radio frequency ablation catheter is less, is convenient to carry, and patient trauma is little.
5, the cost of the radio frequency ablation catheter of percutaneous intervention of the present invention is low, the doctor is easy to operate.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the present of invention.
Fig. 2 a is the far-end enlarged drawing of embodiment shown in Figure 1, and Fig. 2 a and Fig. 2 b show two kinds of different modes that malposition of electrode distributes.
Fig. 3 a and Fig. 3 b are the structural representation of far-end embodiment illustrated in fig. 1, and it shows described electrode bogey and described outer tube is the integral type structure, its by described outer tube directly cutting form.
Fig. 4 a and Fig. 4 b show another the distal structure schematic diagram of embodiment of the present invention, and wherein said electrode bogey is comprised of a plurality of bars.
Fig. 5 a and Fig. 5 b show another the distal structure schematic diagram of embodiment of the present invention, wherein said electrode bogey be along its axially cutting form the sleeve pipe of a plurality of bands.
Fig. 6 a and Fig. 6 b are the embedding method schematic diagram that electrode is adhered to the electrode bogey.
Fig. 7 a and Fig. 7 b are that the two ends heat of electrode is melted into the electrode bogey, the embedding method schematic diagram that exposes in the middle of it.
Fig. 8 a and Fig. 8 b are the schematic diagram that temperature sensor is adhered to the electrode bogey.
Fig. 9 a and Fig. 9 b are the schematic diagram that pressure transducer is adhered to the electrode bogey.
Figure 10 a and Figure 10 b be in one embodiment of the present of invention with the structural representation of handle of accent bending apparatus.
Figure 11 a and Figure 11 b are the schematic diagram that has the outer tube of thread eye in one embodiment of the present of invention.
Figure 12 a and Figure 12 b are the structural representation that band jaggy is set in one embodiment of the present of invention.
Figure 13 a and Figure 13 b show another the distal structure schematic diagram of embodiment of the present invention, and wherein said electrode bogey is comprised of multi-filament.
Figure 14 shows the structural representation of the near-end of core pipe of the present invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in detail.
Near-end of the present invention refers to the end near the operation technique person, and described far-end refers to the end away from the operation technique person.
Embodiment 1
As shown in Figure 1, the frequency ablation electrode catheter that a kind of percutaneous is got involved, comprise: outer tube 3, be arranged on the core pipe 2 in the described outer tube 3, the handle 11 that is fixedly connected with the near-end of described outer tube 3, the core pipe handle 12 that is fixedly connected with the near-end of described core pipe 2, electrode 61, the seal wire 62 that links to each other with described electrode 61 and the electrode plug 63 that links to each other with radiofrequency melting instrument, the far-end of described outer tube 3 is provided with electrode bogey 9, the far-end of described electrode bogey 9 is fixedly connected with the far-end of described core pipe 2, described electrode bogey 9 has a plurality of bars, described a plurality of bar is along described outer tube 3 circumferentially distributions and vertically Heterogeneous Permutation, described electrode 61 is fixed on the middle part of described bar, when described outer tube 3 moves in opposite directions with described core pipe 2, described bar radially arches upward, so that be fixed on described electrode 61 on the described bar near to or in contact with the renal artery blood vessel, because described a plurality of bars are Heterogeneous Permutation vertically, therefore when described bar during along radially outward the arching upward of described outer tube 3, the electrode 61 that is arranged on the middle part of each bar is dislocatedly distributed along blood vessel.
As shown in Figure 1, the frequency ablation electrode catheter that a kind of percutaneous is got involved comprises: outer tube 3, be arranged on core pipe 2 in the described outer tube 3, the handle 11 that is fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 that links to each other with described electrode 61 and the electrode plug 63 that links to each other with radiofrequency melting instrument that are fixedly connected with the near-end of described core pipe 2.Described core pipe 2 is hollow structure, so that guiding wire passes through.The far-end of described outer tube 3 is provided with electrode bogey 9, the far-end of described electrode bogey 9 is fixedly connected with the far-end of described core pipe 2, described electrode bogey 9 has a plurality of bands 5, described electrode bogey 9 is the integral type structure with described outer tube 3, therefore, a plurality of bands 5 be with the far-end of described outer tube 3 vertically directly cutting form, it is along described outer tube 3 circumferentially distributions and vertically Heterogeneous Permutation, the far-end of described a plurality of band 5 can be by as far as Heterogeneous Permutation closely successively, also can be from the near to the remote Heterogeneous Permutation (shown in Fig. 2 a, Fig. 2 b) successively.Shown in Fig. 6 a, 6b, described electrode 61 is laminated structure, and it is fixed to the middle part of each band 5 by gluing mode, forms the abutting edge 614 of electrode 61 and band.Therefore, described electrode 61 is along the axial angled helical arrangement of described electrode bogey 9, when moving described core pipe 2 to near-end, described a plurality of bands 5 radially outwards arch upward, so that be fixed on described electrode 61 on described a plurality of band 5 near to or in contact with the renal artery blood vessel.
As shown in Figure 1, the frequency ablation electrode catheter that a kind of percutaneous is got involved comprises: outer tube 3, be arranged on core pipe 2 in the described outer tube 3, the handle 11 that is fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 that links to each other with described electrode 61 and the electrode plug 63 that links to each other with radiofrequency melting instrument that are fixedly connected with the near-end of described core pipe 2.Described core pipe 2 is hollow structure, so that guiding wire passes through.The far-end of described outer tube 3 is provided with electrode bogey 9, described electrode bogey 9 is the integral type structure with described outer tube 3, shown in Fig. 3 a, described electrode bogey 9 has a plurality of bands 5, described a plurality of band 5 be with the far-end of described outer tube 3 vertically directly cutting form, described band 5 when not swelling and described outer tube 3 on same periphery, the far-end of the far-end of described electrode bogey 9 and described core pipe 2 is fixed together by gluing or hot melting, form the abutting edge 31 (shown in Fig. 3 b) of outer tube and core pipe, described a plurality of bands 5 are along described outer tube 3 circumferentially distributions and vertically Heterogeneous Permutation.Described electrode 61 is fixed on the middle part of each band of described a plurality of band 5, and therefore, described electrode 61 is along the axial Heterogeneous Permutation of described electrode bogey 9.Shown in Fig. 7 a, 7b, described electrode 61 is laminated structure, and the mode that described electrode 61 melts by heat is fixed on the band 5, and the mode that melt by heat at the two ends of described electrode 61 is embedded into the inside of described band 5, and the mid portion of described electrode 61 is exposed.When described outer tube 3 and described core pipe 2 moved in opposite directions, described band 5 radially outwards arched upward (shown in Fig. 3 b), so that be fixed on described electrode 61 on described a plurality of band 5 near to or in contact with the renal artery blood vessel.
Embodiment 4
As shown in Figure 1, the frequency ablation electrode catheter that a kind of percutaneous is got involved comprises: outer tube 3, be arranged on core pipe 2 in the described outer tube 3, the handle 11 that is fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 that links to each other with described electrode 61 and the electrode plug 63 that links to each other with radiofrequency melting instrument that are fixedly connected with the near-end of described core pipe 2.Described core pipe 2 is hollow structure, so that guiding wire passes through.The far-end of described outer tube 3 is provided with electrode bogey 9, shown in Fig. 4 a, 4b, described electrode bogey 9 is comprised of a plurality of bands 5, the near-end of each band 5 is fixedly connected with by gluing or hot melting with the far-end of described outer tube 3, form the abutting edge 51 of band and outer tube, the far-end of each band 5 is fixedly connected with by gluing or hot melting with the far-end of described core pipe 2, form the abutting edge 52 of band and core pipe, the equal in length of each band and parallel to each other is so that described a plurality of band 5 is when arching upward and renal artery blood vessel applying uniformity.Described a plurality of band 5 is along described outer tube 3 circumferentially distributions and vertically Heterogeneous Permutation.Described electrode 61 is fixed on the middle part of described band 5, when described outer tube 3 moves in opposite directions with described core pipe 2, described a plurality of band 5 radially arches upward, so that be fixed on described electrode 61 on described a plurality of band 5 near to or in contact with the renal artery blood vessel, because described a plurality of bands 5 are Heterogeneous Permutation vertically, therefore when described band 5 during along radially outward the arching upward of described outer tube 3, the electrode 61 that is arranged on the middle part of each band 5 is dislocatedly distributed along blood vessel.
For special patient (patient that speckle is for example arranged in the patient of vascular malformation or the blood vessel), the present invention can adopt the unequal band of length according to patient's blood vessel structure, when band radially arched upward, the height that arches upward did not wait, so that the patient's that more fits blood vessel.
As shown in Figure 1, the frequency ablation electrode catheter that a kind of percutaneous is got involved comprises: outer tube 3, be arranged on core pipe 2 in the described outer tube 3, the handle 11 that is fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 that links to each other with described electrode 61 and the electrode plug 63 that links to each other with radiofrequency melting instrument that are fixedly connected with the near-end of described core pipe 2.Described core pipe 2 is hollow structure, so that guiding wire passes through.The far-end of described outer tube 3 is provided with electrode bogey 9, shown in Fig. 5 a, 5b, described electrode bogey 9 is sleeve pipe 4, axial cutting along described sleeve pipe 4 forms a plurality of bands 5, the near-end of described sleeve pipe 4 is fixedly connected with by gluing or hot melting with the far-end of described outer tube 3, form the abutting edge 41 of sleeve pipe 4 and outer tube 3, the far-end of described sleeve pipe 4 is fixedly connected with by gluing or hot melting with the far-end of described core pipe 2, form the abutting edge 42 of sleeve pipe 4 and core pipe 2, described a plurality of bands 5 are along described sleeve pipe 4 circumferentially distributions and vertically Heterogeneous Permutations.Described electrode 61 is fixed on the middle part of described band 5, and therefore, described electrode 61 is along the axial Heterogeneous Permutation of described electrode bogey 9.Shown in Fig. 7 a and Fig. 7 b, described electrode 61 is laminated structure, the two ends of described laminated structure are embedded in the described band by the mode of hot melt, when described outer tube 3 moves in opposite directions with described core pipe 2, described a plurality of band 5 radially outwards arches upward, so that be fixed on described electrode 61 on described a plurality of band 5 near to or in contact with the renal artery blood vessel.
Embodiment 6
As shown in Figure 1, the frequency ablation electrode catheter that a kind of percutaneous is got involved comprises: outer tube 3, be arranged on core pipe 2 in the described outer tube 3, the handle 11 that is fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 that links to each other with described electrode 61 and the electrode plug 63 that links to each other with radiofrequency melting instrument that are fixedly connected with the near-end of described core pipe 2.Described core pipe 2 is hollow structure, so that guiding wire passes through.The far-end of described outer tube 3 is provided with electrode bogey 9, shown in Figure 13 a, 13b, described electrode bogey 9 is comprised of many silks 5, the near-end of every silk 5 is fixedly connected with by gluing or hot melting with the far-end of described outer tube 3, form the abutting edge 51 of silk and outer tube, the far-end of every silk 5 is fixedly connected with by gluing or hot melting with the far-end of described core pipe 2, form the abutting edge 52 of silk and core pipe, the equal in length of every silk and parallel to each other is so that described silk 5 is when arching upward and renal artery blood vessel applying uniformity.Described many silks 5 are along described outer tube 3 circumferentially distributions and vertically Heterogeneous Permutation.Described electrode 61 is fixed on the middle part of every silk, described electrode 61 is annular electrode, when described outer tube 3 moves in opposite directions with described core pipe 2, described silk 5 radially arches upward, so that be fixed on described electrode 61 on the described silk 5 near to or in contact with the renal artery blood vessel, because described silk 5 is Heterogeneous Permutation vertically, therefore when described 5 during along radially outward the arching upward of described outer tube 3, the electrode 61 that is arranged on the middle part of every silk is dislocatedly distributed along blood vessel.
Embodiment 7
As shown in Figure 1, the frequency ablation electrode catheter that a kind of percutaneous is got involved comprises: outer tube 3, be arranged on core pipe 2 in the described outer tube 3, the handle 11 that is fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 that links to each other with described electrode 61 and the electrode plug 63 that links to each other with radiofrequency melting instrument that are fixedly connected with the near-end of described core pipe 2.Described core pipe 2 is hollow structure, so that guiding wire passes through.Shown in Figure 11 a, Figure 11 b, described outer tube 3 is multi-lumen tube, have a plurality of thread eyes 32, the cross sectional shape of described thread eye 32 can be circle, ellipse, square or other shape, the thread eye 32 that the near-end of described seal wire 62 passes multi-lumen tube links to each other with described electrode plug 63, and a described thread eye 32 can pass many seal wires 62.The far-end of described outer tube 3 is provided with electrode bogey 9, described electrode bogey 9 is the integral type structure with described outer tube 3, such as Fig. 3 a, shown in the 3b, described electrode bogey 9 has a plurality of bands 5, described band 5 be with the far-end of described outer tube 3 vertically directly cutting form, described band 5 when not swelling and described outer tube 3 on same periphery, the far-end of the far-end of described electrode bogey 9 and described core pipe 2 is fixed together by gluing or hot melting, form the abutting edge 31 of outer tube and core pipe, described a plurality of band 5 is along described outer tube 3 circumferentially distributions and vertically Heterogeneous Permutation, described band 5 parallel to each other and equal in length.Described electrode 61 is fixed on the middle part of described band, and therefore, described electrode 61 is along the axial Heterogeneous Permutation of described outer tube 9.Shown in Fig. 7 a, Fig. 7 b, described electrode 61 is laminated structure, and the mode that described electrode 61 melts by heat is fixed on this band 5, and the mode that melt by heat at the two ends of described electrode 61 is embedded into the inside of described band 5, and the mid portion of described electrode 61 is exposed.When described outer tube 3 and described core pipe 2 moved in opposite directions, described band 5 radially outwards arched upward, so that be fixed on described electrode 61 on described a plurality of band 5 near to or in contact with the renal artery blood vessel.
In a preferred embodiment, shown in Figure 12 a, Figure 12 b, middle part at described band 5 is provided with breach, when described outer tube 3 moves in opposite directions with described core pipe 2, described band 5 radially outwards arches upward in described indentation, there, such design is convenient to guarantee that each band arches upward from indentation, there, so that the height that electrode arches upward is consistent.
In a preferred embodiment, shown in Fig. 8 a, Fig. 8 b, also be provided with temperature sensor 612 on the described band 5, described temperature sensor 612 links to each other with described electrode plug 63 by seal wire, described temperature sensor 612 is laminated structure, and described temperature sensor 612 is fixed on one side of described electrode 61 by gluing or hot mode of melting.In addition, on described band 5, also be provided with pressure transducer 613, shown in Fig. 9 a, Fig. 9 b, described pressure transducer 613 links to each other with described electrode plug 63 by seal wire, described pressure transducer 613 is laminated structure, and described pressure transducer 613 is fixed on one side of described electrode 61 by gluing or hot mode of melting.
Embodiment 8
As shown in Figure 1, the frequency ablation electrode catheter that a kind of percutaneous is got involved comprises: outer tube 3, be arranged on core pipe 2 in the described outer tube 3, the handle 11 that is fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 that links to each other with described electrode 61 and the electrode plug 63 that links to each other with radiofrequency melting instrument that are fixedly connected with the near-end of described core pipe 2.The far-end of described outer tube 3 is provided with electrode bogey 9, described electrode bogey 9 is the integral type structure with described outer tube 3, such as Fig. 3 a, shown in the 3b, described electrode bogey 9 has a plurality of bands 5, described band 5 be with the far-end of described outer tube 3 vertically directly cutting form, described band 5 when not swelling and described outer tube 3 on same periphery, the far-end of the far-end of described electrode bogey 9 and described core pipe 2 is fixed together by gluing or hot melting, form the abutting edge 31 of outer tube and core pipe, described band 5 is along described outer tube 3 circumferentially distributions and vertically Heterogeneous Permutation.Described electrode 61 is fixed on the middle part of described band, and therefore, described electrode 61 is along the axial Heterogeneous Permutation of described outer tube 9.Shown in Fig. 7 a, Fig. 7 b, described electrode 61 is laminated structure, and the mode that described electrode 61 melts by heat is fixed on the band 5, and the mode that melt by heat at the two ends of described electrode 61 is embedded into the inside of described band 5, and the mid portion of described electrode 61 is exposed.When described outer tube 3 and described core pipe 2 moved in opposite directions, described a plurality of bands 5 radially outwards arched upward, so that be fixed on described electrode 61 on the described band 5 near to or in contact with the renal artery blood vessel.
In a preferred embodiment, described core pipe 2 is hollow structure, so that guiding wire passes through, the far-end of described core pipe 2 is flexible material, can be to the blood vessel wall injury when moving in blood vessel with convenient conduit, described core pipe 2 is made by the macromolecular material that contains developing material, in order to can determine quickly and easily the position of core pipe far-end.As shown in figure 14, be provided with to point out the mark line 14 of the height that described electrode 61 arches upward at the near-end of described core pipe 2, namely according to the position of described mark line 14, mobile in opposite directions described outer tube 3 and core pipe 2, the external diameter that opens to control described electrode bogey.For example, in the corresponding size of external diameter that near-end Direct Mark and the electrode bogey of described core pipe 2 radially arches upward, the doctor can more intuitive, more conveniently carry out operation technique like this.
In a preferred embodiment, such as Fig. 1 and shown in Figure 14, be provided with locking device 8 at described handle, when described core pipe 2 moves or when the mobile in opposite directions so that size that described a plurality of band 5 radially arches upward of described outer tube 3 and described core pipe 2 satisfies requirements of operation to near-end, the described locking device 8 of locking, with the position of fixed core pipe 2, it can not moved with respect to outer tube 3.Described locking device 8 can be buckle, also can be provided with for inside the knob of silicagel pad.
In a preferred embodiment, shown in Fig. 8 a, Fig. 8 b and Fig. 9 a, Fig. 9 b, also be provided with temperature sensor 612 and pressure transducer 613 on the described band 5, described temperature sensor 612 links to each other with described electrode plug 63 by seal wire with pressure transducer 613, described temperature sensor 612 and described pressure transducer 613 are laminated structure, and it is fixed on a side of described electrode 61 by gluing or hot mode of melting.
In a preferred embodiment, such as Figure 10 a, shown in Figure 10 b, near-end or described handle at described outer tube 3 are provided with accent bending apparatus 13, described accent bending apparatus 13 comprises transfers curved hand grip 133, transfer curved knob 134, fixture 132, regulate silk 131 and lid 135, be provided with chute at described accent curved hand grip 133, described fixture 132 is arranged in the described chute, the curved knob 134 of described accent be enclosed within described accent curved hand grip 133 described chute outside and with described fixture 132 threaded engagement, the described near-end of regulating silk 131 is fixed on the described fixture 132, the described far-end of regulating silk 131 is fixed on the far-end of described outer tube 3, described lid 135 is arranged at the near-end of described accent curved hand grip 133, and be connected with curved knob 134 buckles of described accent, to limit the position of the curved knob 134 of described accent.Control described accent bending apparatus 13, can make the crooked certain angle of far-end of described outer tube 3.
Should be noted that at last; the above only is preferred embodiment of the present invention; not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the frequency ablation electrode catheter got involved of a percutaneous, it is characterized in that, comprise: outer tube, be arranged on the core pipe in the described outer tube, the handle that is fixedly connected with the near-end of described outer tube, the core pipe handle that is fixedly connected with the near-end of described core pipe, electrode, the seal wire and the electrode plug that is connected with radiofrequency melting instrument that link to each other with described electrode, the far-end of described outer tube is provided with the electrode bogey, the far-end of described electrode bogey is fixedly connected with the far-end of described core pipe, described electrode bogey has a plurality of bars, described a plurality of bar is along the circumferential vertically Heterogeneous Permutation that distributes also of described outer tube, described electrode is fixed on the middle part of described bar, when described outer tube and described core pipe moved in opposite directions, the described electrode on the described bar radially arched upward and is dislocatedly distributed.
2. the frequency ablation electrode catheter got involved of percutaneous according to claim 1, it is characterized in that, described electrode bogey and described outer tube are the integral type structure, the described bar in the described electrode bogey be with the far-end of described outer tube vertically directly cutting form.
3. the frequency ablation electrode catheter got involved of percutaneous according to claim 1, it is characterized in that, described electrode bogey is tubular structure, axial cutting along described tubular structure forms a plurality of bars, the near-end of described tubular structure is fixedly connected with the far-end of described outer tube, and the far-end of described tubular structure is fixedly connected with the far-end of described core pipe.
4. the frequency ablation electrode catheter got involved of percutaneous according to claim 1, it is characterized in that, described electrode bogey is comprised of a plurality of bars, and the near-end of each bar is fixedly connected with the far-end of described outer tube, and the far-end of each bar is fixedly connected with the far-end of described core pipe.
5. the frequency ablation electrode catheter that each described percutaneous is got involved according to claim 1-5 is characterized in that, the equal in length of described bar and parallel to each other, and described bar is band or silk.
6. the frequency ablation electrode catheter of percutaneous intervention according to claim 5 is characterized in that, described electrode is laminated structure or circulus, and described electrode is fixed on the described bar by gluing or hot mode of melting.
7. the frequency ablation electrode catheter of percutaneous intervention according to claim 6 is characterized in that, the two ends of described laminated structure are embedded in the described bar by the mode of hot melt.
8. the frequency ablation electrode catheter of percutaneous intervention according to claim 1 is characterized in that, described core pipe is hollow structure.
9. the frequency ablation electrode catheter of percutaneous intervention according to claim 1 is characterized in that, described outer tube is multi-lumen tube, and the tube chamber that the near-end of described seal wire passes described multi-lumen tube links to each other with described electrode plug.
10. the frequency ablation electrode catheter got involved of percutaneous according to claim 1, it is characterized in that, be provided with locking device at described handle, when the mobile in opposite directions so that size that described bar is radially expanded of described outer tube and described core pipe satisfies requirements of operation, lock described core pipe, it can not moved relative to outer tube.
11. the frequency ablation electrode catheter that percutaneous according to claim 1 is got involved is characterized in that, is provided with to point out the mark line of the height that described electrode arches upward at the near-end of described core pipe.
12. the frequency ablation electrode catheter that percutaneous according to claim 1 is got involved, it is characterized in that, the frequency ablation electrode catheter that described percutaneous is got involved also comprises the accent bending apparatus, described accent bending apparatus comprises the accent curved hand grip, transfer curved knob, fixture, regulate silk and lid, be provided with chute at described accent curved hand grip, described fixture is arranged in the described chute, the curved knob sleeve of described accent the outside of the described chute of described regulating handle and with described fixture threaded engagement, the described near-end of regulating silk is fixed on the described fixture, the described far-end of regulating silk is fixed on the far-end of described outer tube, described lid is arranged at the near-end of described accent curved hand grip, and be connected with the curved knob buckle of described accent, to limit the position of the curved knob of described accent.
13. the frequency ablation electrode catheter that percutaneous according to claim 1 is got involved, it is characterized in that, be provided with pressure transducer and/or temperature sensor at described bar, described pressure transducer and/or temperature sensor link to each other with described electrode plug by seal wire.
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| CN201310214129.8A CN103300917B (en) | 2013-06-03 | 2013-06-03 | The frequency ablation electrode catheter that percutaneous is got involved |
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| CN201310214129.8A CN103300917B (en) | 2013-06-03 | 2013-06-03 | The frequency ablation electrode catheter that percutaneous is got involved |
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| CN103300917B CN103300917B (en) | 2016-03-23 |
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| CN109091753A (en) * | 2018-11-08 | 2018-12-28 | 常州瑞神安医疗器械有限公司 | A kind of spinal cord stimulation electrode with temperature sense function |
| CN110537975A (en) * | 2019-10-15 | 2019-12-06 | 宜宾市第一人民医院 | Electric coagulation catheter for varicose vein minimally invasive treatment |
| WO2022000178A1 (en) * | 2020-06-29 | 2022-01-06 | 乐普（北京）医疗器械股份有限公司 | Electrode catheter system |
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| WO2022000178A1 (en) * | 2020-06-29 | 2022-01-06 | 乐普（北京）医疗器械股份有限公司 | Electrode catheter system |
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