CN103300917B - The frequency ablation electrode catheter that percutaneous is got involved - Google Patents
The frequency ablation electrode catheter that percutaneous is got involved Download PDFInfo
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- CN103300917B CN103300917B CN201310214129.8A CN201310214129A CN103300917B CN 103300917 B CN103300917 B CN 103300917B CN 201310214129 A CN201310214129 A CN 201310214129A CN 103300917 B CN103300917 B CN 103300917B
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Abstract
The present invention relates to the frequency ablation electrode catheter that a kind of percutaneous is got involved, comprise: outer tube, core pipe is within the outer tube set, the hands handle be fixedly connected with the near-end of outer tube, the core pipe hands handle be fixedly connected with the near-end of core pipe, electrode, the seal wire be connected with electrode and the electrode plug be connected with radiofrequency melting instrument, the far-end of described outer tube is provided with electrode bogey, its far-end is fixedly connected with the far-end of described core pipe, described electrode bogey has multiple bar, described bar is along the circumferential Heterogeneous Permutation vertically 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 move in opposite directions, electrode on described bar radially arches upward and is dislocatedly distributed.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 correspondingly can adjust according to the blood vessel diameter of patient.
Description
Technical field
The invention belongs to medical instruments field, being specifically related to a kind of frequency ablation electrode catheter got involved by going renal sympathetic nerve to treat hypertensive percutaneous.
Background technology
Hypertension has a strong impact on people's life quality and life-threatening common disease, and be also that the whole world causes dead Etiological, the annual whole world seven million people is because of hypertension death.Point out in " report of Chinese residents nutrition and health survey " of October in 2004 information office of State Council on the 12nd news briefing being issued: China's adult hypertension prevalence is 18.8%, and crowd's hypertension awareness, treatment rate and control rate are only 30.2%, 24.7% and 6.1%.Even if in the U.S., the control rate of hypertension treatment is in recent years also less than 30%.At present, China is one of country that hypertension harm is the most serious in the world, estimates that national hyperpietic is more than 200,000,000.
Hypertension therapeutic popular is both at home and abroad Drug therapy.The object of its treatment is by drug effect in the links causing blood pressure to raise, and interference causes the lot of essential factors of blood pressure rising in body and controls blood pressure; Treat that medicine used is wherein of greatest concern and what play a major role is calcium channel blocker, angiotensin-convertion enzyme inhibitor and angiotensin ii receptor antagonist, and outstanding two class medicines are later main, and the effect of these rear two class medicines is all in renin-angiotensin system.The Long term combined medication treatment of such medicine, will not only need long-term taking but also expensive, side effect to give prominence to, 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 is thought always, and the sympathetic activation of kidney and blood pressure raise in close relations.When the sympathetic nerve of kidney is overexcited, renal blood vessels is shunk, and reduces the excretion of kidney, moisture and salt are detained in vivo, promote renal secretion feritin simultaneously, result in the increase of blood Angiotensin-Converting II and aldosterone, and latter two material, the factor of blood pressure rising just.Early stage research is the method adopting excision domination renal sympathetic nerve joint, though the method can reach the object of blood pressure lowering, but damage is large, and complication is many.In March, 2009, in the american heart institute (ACC) that Global Home Textiles is held the 58th science conference, professor Krum of Monash university of Australia proposes a kind of non-pharmaceutical method for the treatment of intractable hypertension completely newly---and radio-frequency (RF) ablation removes the sympathetic nerve of domination kidney, namely by femoral artery puncture and angiography, special radio frequency ablation catheter is imported renal artery, send radio-frequency (RF) energy and destroy the sympathetic nerve of domination kidney to treat hypertension, thus significantly reduce the blood pressure of intractable hypertension patient.The theoretical basis of this Treatment of Hypertension new method is: the sympathetic nerve of kidney imports the superficial place be distributed in efferent fiber below renal artery wall into, it is active with hypertensive generation with remain closely related, carries out radio-frequency (RF) ablation can damage sympathetic renal nerve and the nervous tissue of not involving other abdominal paries, pelvic cavity or lower limb in renal artery local.Curative effect aspect, the observation studied through December is known, and when treating latter 1 month, patient's blood pressure obviously reduces, and when 3 months, its blood pressure reduces further, the effect still highly significant that when 1 year, blood pressure reduces, and does not also find obvious neuranagenesis simultaneously.As can be seen here, the easy and safety of this therapy method.
Therefore, utilize and go renal sympathetic nerve radio frequency ablation catheter system to transmit radio-frequency (RF) energy in renal artery tube chamber, melt and import sympathetic nerve into around arteriorenal kidney 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 renal sympathetic nerve, must repeatedly repeatedly melt around renal artery, these needs repeat to position the ablating electrode being against renal artery inner membrance place (emitter), and need repeatedly radio frequency to occur, higher to the requirement of catheter manipulation, also may miss some renal sympathetic nerve, cause treatment not exclusively.In order to reach better therapeutic effect, people attempt adopting diverse ways and technology, such as, when carrying out radiofrequency ablation therapy with renal artery ablation catheter, the far-end stretch bending of ablation catheter makes it to fit with renal artery blood vessel wall by doctor's control crank, turn-knob simultaneously on turning handle controls the rotation of ablation catheter far-end, mobile ablation locations, reach and melt at different parts, but, usually when melting the sympathetic nerve on renal artery, the sympathetic nerve that higher power and high impedance just can interrupt renal artery blood vessel must be set, during radio-frequency (RF) ablation, impedance is up to 300 Ω, therefore very large to blood vessel damage.Such as, research staff attempt adopting electrode is embedded into renal artery ablation catheter far-end sacculus on multiple spot carry out melting (the renal artery ablation catheter as VESSIX company) simultaneously, but adopt this mode of foley's tube to carry out renal sympathetic nerve radio-frequency (RF) ablation, arteriorenal blood flow is hindered by the process of radio-frequency (RF) ablation, if operating time is long, will induced renal damage function, and this Product Process is complicated, and cost is high.Such as, the patent No. is that the Chinese patent of ZL200920172984.6 provides a kind of spiral ring renal-artery-around renal sympathetic nerve frequency ablation electrode catheter, and it adopts spiral helicine ablating electrode, blood vessel wall is formed to the continuous contact of a non-close ring.But this patent only has the screw electrode of a fixed diameter, need leading femoral artery puncture during use, under the transmission of X-ray contrast machine, according to renal arteriography result, then from the product of different-diameter, select the product of applicable patient.Patient suffering's time is long, and operative procedure is complicated, and the operation easier of doctor is large.In prior art, the ARR ablation catheter of employing treatment melts the sympathetic nerve on renal artery in addition, to reach the object for the treatment of intractable hypertension, this kind of ablation catheter diameter is thicker, handle inconvenient at renal artery Ink vessel transfusing, and it is comparatively large to melt area, causes larger damage to renal artery.
Therefore, be badly in need of now one and can reduce arteriorenal damage, doctor is easy to operate, and the radio frequency ablation catheter of the applicable different patient of same specification.
Summary of the invention
The object 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 correspondingly can adjust according to the blood vessel diameter of patient.
The object 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 described outer tube, the hands handle be fixedly connected with the near-end of described outer tube, the core pipe hands handle be fixedly connected with the near-end of described core pipe, electrode, the seal wire be connected with described electrode and the electrode plug be connected with radiofrequency melting instrument, the far-end of described outer tube is provided with electrode bogey, the far-end of described electrode bogey is fixedly connected with the far-end of described core pipe, described electrode bogey has multiple bar, described multiple bar is along the circumferential Heterogeneous Permutation vertically 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 move in opposite directions, described electrode on described bar radially arches upward and is dislocatedly distributed.
Object of the present invention can also be realized further by following technical scheme:
Preferably, described electrode bogey and described outer tube are integral type structure, and the described bar in described electrode bogey is directly cut vertically by the far-end of described outer tube to form.
Preferably, described electrode bogey is tubular structure, axis cutting along described tubular structure forms multiple bar, 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 made up of multiple bar, 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 length of described bar is equal and parallel to each other, and described bar is band or silk.
Preferably, described electrode is laminated structure or circulus, and described electrode is fixed on described bar by the mode that gluing or heat are melted.
Preferred, the two ends of described laminated structure are embedded in 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 near-end of described seal wire is connected with described electrode plug through the tube chamber of described multi-lumen tube.
Preferably, described handle is provided with locking device, when described outer tube and the described core pipe size that movement makes described bar radially expand in opposite directions meet requirements of operation, locks described core pipe, make it can not move relative to outer tube.
Preferably, the mark line of the height of pointing out described electrode to arch upward is provided with at the near-end of described core pipe.
Preferably, the frequency ablation electrode catheter that described percutaneous is got involved also comprises tune bending apparatus, described tune bending apparatus comprises tune curved hand grip, adjust curved knob, fixture, regulate silk and lid, described tune curved hand grip is provided with chute, described fixture is arranged in described chute, the curved knob sleeve of described tune in the outside of the described chute of described regulating handle and with described fixture threaded engagement, the near-end of described adjustment silk is fixed on described fixture, the far-end of described adjustment silk is fixed on the far-end of described outer tube, described lid is arranged at the near-end of described tune curved hand grip, and be connected with the curved knob buckle of described tune, to limit the position of the curved knob of described tune.
Preferably, described bar is provided with pressure transducer and/or temperature sensor, described pressure transducer and/or temperature sensor are connected with described electrode plug by seal wire.
Compared with the existing technology, feature of the present invention is with progressive as follows:
1, the far-end of radio frequency ablation catheter that percutaneous of the present invention is got involved has the electrode of multiple along the distribution of outer tube circumference and vertically Heterogeneous Permutation, therefore the electrode arched upward in ablation procedure misplaces with renal artery vascularization point-like and contacts, and reduces arteriorenal damage.
2, the radio frequency ablation catheter that percutaneous of the present invention is got involved has multiple electrode, the plurality of electrode can according to sufferer situation simultaneously or combination melt, decrease 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 multiple bar, by mobile core pipe, the electrode at the middle part of multiple bar radially arches upward, described electrode is made to come close to or in contact with the inner membrance of patient's renal artery blood vessel, therefore, the maximum gauge of the electrode bogey of the radio frequency ablation catheter that percutaneous can be regulated to get involved by mobile core pipe, the same specification of the radio frequency ablation catheter that percutaneous of the present invention is got involved can meet the needs of the patient with different renal artery diameters.
4, in the radio frequency ablation catheter course of conveying got involved at percutaneous of the present invention, the bar of described electrode bogey is close to described core pipe, makes the entire outer diameter of radio frequency ablation catheter less, and be convenient to conveying, patient trauma is little.
5, the cost of the radio frequency ablation catheter of percutaneous intervention of the present invention is low, doctor is easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present of invention.
The far-end enlarged drawing that Fig. 2 a is the embodiment shown in Fig. 1, Fig. 2 a and Fig. 2 b shows two kinds of different modes of malposition of electrode distribution.
Fig. 3 a and Fig. 3 b is the structural representation of far-end embodiment illustrated in fig. 1, it illustrates described electrode bogey and described outer tube is integral type structure, and it is directly cut by described outer tube and forms.
Fig. 4 a and Fig. 4 b shows another the distal structure schematic diagram of embodiment of the present invention, and wherein said electrode bogey is made up of multiple bar.
Fig. 5 a and Fig. 5 b shows 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 multiple band.
Fig. 6 a and Fig. 6 b is that electrodes adhere is in the embedding method schematic diagram of electrode bogey.
Fig. 7 a and Fig. 7 b is that the two ends heat of electrode is melted into electrode bogey, embedding method schematic diagram exposed in the middle of it.
Fig. 8 a and Fig. 8 b is the schematic diagram that temperature sensor is adhered to electrode bogey.
Fig. 9 a and Fig. 9 b is the schematic diagram that pressure transducer is adhered to 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 tune bending apparatus.
Figure 11 a and Figure 11 b is the schematic diagram of the outer tube in one embodiment of the present of invention with thread eye.
Figure 12 a and Figure 12 b is the structural representation arranging band jaggy in one embodiment of the present of invention.
Figure 13 a and Figure 13 b shows another the distal structure schematic diagram of embodiment of the present invention, and wherein said electrode bogey is made up of multi-filament.
Figure 14 shows the structural representation of the near-end of core pipe of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in detail.
Near-end of the present invention refers to the one end close to operator, and described far-end refers to the one end away from operator.
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 described outer tube 3, the handle 11 be fixedly connected with the near-end of described outer tube 3, the core pipe handle 12 be fixedly connected with the near-end of described core pipe 2, electrode 61, the seal wire 62 be connected with described electrode 61 and the electrode plug 63 be connected 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 multiple bar, described multiple bar is along the circumferential Heterogeneous Permutation vertically that distributes also of described outer tube 3, 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, make to be fixed on described electrode 61 on described bar near to or in contact with renal artery blood vessel, due to described multiple bar Heterogeneous Permutation vertically, therefore when described bar is along radially outward the arching upward of described outer tube 3, the electrode 61 being arranged on the middle part of each bar is dislocatedly distributed along blood vessel.
Embodiment 2
As shown in Figure 1, the frequency ablation electrode catheter that percutaneous is got involved, comprising: outer tube 3, the core pipe 2 be arranged in described outer tube 3, the handle 11 be fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 be connected with described electrode 61 and the electrode plug 63 be connected 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 multiple band 5, described electrode bogey 9 is integral type structure with described outer tube 3, therefore, multiple band 5 is directly cut vertically by the far-end of described outer tube 3 to form, it is along the circumferential Heterogeneous Permutation vertically that distributes also of described outer tube 3, the far-end of described multiple band 5 can by as far as nearly Heterogeneous Permutation successively, also can Heterogeneous Permutation (as shown in Fig. 2 a, Fig. 2 b) successively from the near to the remote.As 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 angled helical arrangement of axis of described electrode bogey 9, when proximally moving described core pipe 2, described multiple band 5 radially arches upward, and makes to be fixed on described electrode 61 on described multiple band 5 near to or in contact with renal artery blood vessel.
Embodiment 3
As shown in Figure 1, the frequency ablation electrode catheter that percutaneous is got involved, comprising: outer tube 3, the core pipe 2 be arranged in described outer tube 3, the handle 11 be fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 be connected with described electrode 61 and the electrode plug 63 be connected 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 integral type structure with described outer tube 3, as shown in Figure 3 a, described electrode bogey 9 has multiple band 5, described multiple band 5 is directly cut vertically by the far-end of described outer tube 3 to form, described band 5 when not swelling and described outer tube 3 on same periphery, the far-end of described electrode bogey 9 and the far-end of described core pipe 2 are melted by gluing or heat and are fixed together, form the abutting edge 31 (as shown in Figure 3 b) of outer tube and core pipe, described multiple band 5 is along the circumferential Heterogeneous Permutation vertically that distributes also of described outer tube 3.Described electrode 61 is fixed on the middle part of each band of described multiple band 5, and therefore, described electrode 61 arranges along the axile displacement of described electrode bogey 9.As shown in Fig. 7 a, 7b, described electrode 61 is laminated structure, and the mode that described electrode 61 is melted by heat is fixed on band 5, and the two ends of described electrode 61 are embedded into the inside of described band 5 by the mode that heat is melted, the mid portion of described electrode 61 is exposed.When described outer tube 3 moves in opposite directions with described core pipe 2, described band 5 radially arches upward (as shown in Figure 3 b), makes to be fixed on described electrode 61 on described multiple band 5 near to or in contact with renal artery blood vessel.
Embodiment 4
As shown in Figure 1, the frequency ablation electrode catheter that percutaneous is got involved, comprising: outer tube 3, the core pipe 2 be arranged in described outer tube 3, the handle 11 be fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 be connected with described electrode 61 and the electrode plug 63 be connected 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, as shown in Fig. 4 a, 4b, described electrode bogey 9 is made up of multiple band 5, the near-end of each band 5 and the far-end of described outer tube 3 are melted by gluing or heat and are fixedly connected with, form the abutting edge 51 of band and outer tube, the far-end of each band 5 and the far-end of described core pipe 2 are melted by gluing or heat and are fixedly connected with, form the abutting edge 52 of band and core pipe, the length of each band is equal and parallel to each other, makes described multiple bands 5 when arching upward and renal artery blood vessel is fitted uniformity.Described multiple band 5 is along the circumferential Heterogeneous Permutation vertically that distributes also of described outer tube 3.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 multiple band 5 radially arches upward, make to be fixed on described electrode 61 on described multiple band 5 near to or in contact with renal artery blood vessel, due to described multiple bands 5 Heterogeneous Permutation vertically, therefore, when described band 5 is along radially outward the arching upward of described outer tube 3, the electrode 61 being arranged on the middle part of each band 5 is dislocatedly distributed along blood vessel.
For special patient's (patient of such as vascular malformation or Ink vessel transfusing have the patient of speckle), the present invention can adopt the unequal band of length according to the blood vessel structure of patient, when band radial direction arches upward, the height arched upward not etc. so that the blood vessel of the patient that more fits.
Embodiment 5
As shown in Figure 1, the frequency ablation electrode catheter that percutaneous is got involved, comprising: outer tube 3, the core pipe 2 be arranged in described outer tube 3, the handle 11 be fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 be connected with described electrode 61 and the electrode plug 63 be connected 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, as shown in Fig. 5 a, 5b, described electrode bogey 9 is sleeve pipe 4, axis cutting along described sleeve pipe 4 forms multiple band 5, the near-end of described sleeve pipe 4 and the far-end of described outer tube 3 are melted by gluing or heat and are fixedly connected with, form the abutting edge 41 of sleeve pipe 4 and outer tube 3, the far-end of described sleeve pipe 4 and the far-end of described core pipe 2 are melted by gluing or heat and are fixedly connected with, form the abutting edge 42 of sleeve pipe 4 and core pipe 2, described multiple band 5 is along the circumferential Heterogeneous Permutation vertically that distributes also of described sleeve pipe 4.Described electrode 61 is fixed on the middle part of described band 5, and therefore, described electrode 61 arranges along the axile displacement of described electrode bogey 9.As shown in figs. 7 a and 7b, described electrode 61 is laminated structure, the two ends of described laminated structure are embedded in described band by the mode of hot melt, when described outer tube 3 moves in opposite directions with described core pipe 2, described multiple band 5 radially arches upward, and makes to be fixed on described electrode 61 on described multiple band 5 near to or in contact with renal artery blood vessel.
Embodiment 6
As shown in Figure 1, the frequency ablation electrode catheter that percutaneous is got involved, comprising: outer tube 3, the core pipe 2 be arranged in described outer tube 3, the handle 11 be fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 be connected with described electrode 61 and the electrode plug 63 be connected 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, as shown in Figure 13 a, 13b, described electrode bogey 9 is made up of many silks 5, the near-end of every bar silk 5 and the far-end of described outer tube 3 are melted by gluing or heat and are fixedly connected with, form the abutting edge 51 of silk and outer tube, the far-end of every bar silk 5 and the far-end of described core pipe 2 are melted by gluing or heat and are fixedly connected with, form the abutting edge 52 of silk and core pipe, the length of every bar silk is equal and parallel to each other, makes described silk 5 when arching upward and renal artery blood vessel is fitted uniformity.Described many silks 5 are along the circumferential Heterogeneous Permutation vertically that distributes also of described outer tube 3.Described electrode 61 is fixed on the middle part of every bar 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, make to be fixed on described electrode 61 on described silk 5 near to or in contact with renal artery blood vessel, due to described silk 5 Heterogeneous Permutation vertically, therefore when described silk 5 is along radially outward the arching upward of described outer tube 3, the electrode 61 being arranged on the middle part of every bar silk is dislocatedly distributed along blood vessel.
Embodiment 7
As shown in Figure 1, the frequency ablation electrode catheter that percutaneous is got involved, comprising: outer tube 3, the core pipe 2 be arranged in described outer tube 3, the handle 11 be fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 be connected with described electrode 61 and the electrode plug 63 be connected 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.As shown in Figure 11 a, Figure 11 b, described outer tube 3 is multi-lumen tube, there is multiple thread eye 32, the cross sectional shape of described thread eye 32 can be circle, ellipse, square or other shape, the near-end of described seal wire 62 is connected with described electrode plug 63 through the thread eye 32 of multi-lumen tube, 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 integral type structure with described outer tube 3, as Fig. 3 a, shown in 3b, described electrode bogey 9 has multiple band 5, described band 5 is directly cut vertically by the far-end of described outer tube 3 to form, described band 5 when not swelling and described outer tube 3 on same periphery, the far-end of described electrode bogey 9 and the far-end of described core pipe 2 are melted by gluing or heat and are fixed together, form the abutting edge 31 of outer tube and core pipe, described multiple band 5 is along the circumferential Heterogeneous Permutation vertically that distributes also of described outer tube 3, described band 5 is parallel to each other and length is equal.Described electrode 61 is fixed on the middle part of described band, and therefore, described electrode 61 arranges along the axile displacement of described outer tube 9.As shown in Fig. 7 a, Fig. 7 b, described electrode 61 is laminated structure, and the mode that described electrode 61 is melted by heat is fixed on this band 5, and the two ends of described electrode 61 are embedded into the inside of described band 5 by the mode that heat is melted, the mid portion of described electrode 61 is exposed.When described outer tube 3 moves in opposite directions with described core pipe 2, described band 5 radially arches upward, and makes to be fixed on described electrode 61 on described multiple band 5 near to or in contact with renal artery blood vessel.
In a preferred embodiment, as shown in Figure 12 a, Figure 12 b, the middle part of 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 arches upward in described indentation, there, such design is convenient to ensure that each band arches upward from indentation, there, and the height that electrode is arched upward is consistent.
In a preferred embodiment, as shown in Fig. 8 a, Fig. 8 b, described band 5 is also provided with temperature sensor 612, described temperature sensor 612 is connected with described electrode plug 63 by seal wire, described temperature sensor 612 is laminated structure, and described temperature sensor 612 is fixed on described electrode 61 by the mode that gluing or heat are melted.In addition, described band 5 is also provided with pressure transducer 613, as shown in Fig. 9 a, Fig. 9 b, described pressure transducer 613 is connected with described electrode plug 63 by seal wire, described pressure transducer 613 is laminated structure, and described pressure transducer 613 is fixed on described electrode 61 by the mode that gluing or heat are melted.
Embodiment 8
As shown in Figure 1, the frequency ablation electrode catheter that percutaneous is got involved, comprising: outer tube 3, the core pipe 2 be arranged in described outer tube 3, the handle 11 be fixedly connected with the near-end of described outer tube 3, the core pipe handle 12, electrode 61, the seal wire 62 be connected with described electrode 61 and the electrode plug 63 be connected 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 integral type structure with described outer tube 3, as Fig. 3 a, shown in 3b, described electrode bogey 9 has multiple band 5, described band 5 is directly cut vertically by the far-end of described outer tube 3 to form, described band 5 when not swelling and described outer tube 3 on same periphery, the far-end of described electrode bogey 9 and the far-end of described core pipe 2 are melted by gluing or heat and are fixed together, form the abutting edge 31 of outer tube and core pipe, described band 5 is along the circumferential Heterogeneous Permutation vertically that distributes also of described outer tube 3.Described electrode 61 is fixed on the middle part of described band, and therefore, described electrode 61 arranges along the axile displacement of described outer tube 9.As shown in Fig. 7 a, Fig. 7 b, described electrode 61 is laminated structure, and the mode that described electrode 61 is melted by heat is fixed on band 5, and the two ends of described electrode 61 are embedded into the inside of described band 5 by the mode that heat is melted, the mid portion of described electrode 61 is exposed.When described outer tube 3 moves in opposite directions with described core pipe 2, described multiple band 5 radially arches upward, and makes to be fixed on described electrode 61 on described band 5 near to or in contact with 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, damage can not be caused to blood vessel wall when Ink vessel transfusing moves with convenient conduit, described core pipe 2 is obtained by the macromolecular material containing developing material, can determine the position of core pipe far-end quickly and easily.As shown in figure 14, be provided with the mark line 14 of the height of pointing out described electrode 61 to arch upward at the near-end of described core pipe 2, namely according to the position of described mark line 14, move described outer tube 3 and core pipe 2 in opposite directions, to control the external diameter that described electrode bogey opens.Such as, in the size that the near-end Direct Mark of described core pipe 2 is corresponding with the external diameter that electrode bogey radial direction arches upward, such doctor more intuitive, more conveniently can carry out operation technique.
In a preferred embodiment, as shown in Fig. 1 and Figure 14, described handle is provided with locking device 8, when proximally moving when described core pipe 2 or meet requirements of operation when described outer tube 3 with described core pipe 2 size that movement makes described multiple band 5 radially arch upward in opposite directions, locking device 8 described in locking, with the position of fixed core pipe 2, make it can not move relative to outer tube 3.Described locking device 8 can be buckle, also can be the inner knob being provided with silicagel pad.
In a preferred embodiment, as shown in Fig. 8 a, Fig. 8 b and Fig. 9 a, Fig. 9 b, described band 5 is also provided with temperature sensor 612 and pressure transducer 613, described temperature sensor 612 is connected 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 the side of described electrode 61 by the mode that gluing or heat are melted.
In a preferred embodiment, as Figure 10 a, shown in Figure 10 b, the near-end or described handle of described outer tube 3 are provided with and adjust bending apparatus 13, described tune bending apparatus 13 comprises adjusts curved hand grip 133, adjust curved knob 134, fixture 132, regulate silk 131 and lid 135, described tune curved hand grip 133 is provided with chute, described fixture 132 is arranged in described chute, the curved knob of described tune 134 be enclosed within the described chute of described tune curved hand grip 133 outside and with described fixture 132 threaded engagement, the near-end of described adjustment silk 131 is fixed on described fixture 132, the far-end of described adjustment silk 131 is fixed on the far-end of described outer tube 3, described lid 135 is arranged at the near-end of described tune curved hand grip 133, and be connected with described tune curved knob 134 buckle, to limit the position of the curved knob 134 of described tune.Control described tune bending apparatus 13, the far-end of described outer tube 3 can be made to bend certain angle.
Finally should be noted that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the frequency ablation electrode catheter of a percutaneous intervention, it is characterized in that, comprise: outer tube, be arranged on the core pipe in described outer tube, the hands handle be fixedly connected with the near-end of described outer tube, the core pipe hands handle be fixedly connected with the near-end of described core pipe, electrode, the seal wire be connected with described electrode and the electrode plug be connected with radiofrequency melting instrument, the far-end of described outer tube is provided with electrode bogey, the far-end of described electrode bogey is fixedly connected with the far-end of described core pipe, described electrode bogey has multiple bar, described multiple bar is along the circumferential Heterogeneous Permutation vertically 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 move in opposite directions, described electrode on described bar radially arches upward and is dislocatedly distributed, in the frequency ablation electrode catheter course of conveying that described percutaneous is got involved, the described bar of described electrode bogey is close to described core pipe, the frequency ablation electrode catheter that described percutaneous is got involved also comprises tune bending apparatus.
2. the frequency ablation electrode catheter of percutaneous intervention according to claim 1, it is characterized in that, described electrode bogey and described outer tube are integral type structure, and the described bar in described electrode bogey is directly cut vertically by the far-end of described outer tube to form.
3. the frequency ablation electrode catheter of percutaneous intervention according to claim 1, it is characterized in that, described electrode bogey is tubular structure, axis cutting along described tubular structure forms multiple bar, 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 of percutaneous intervention according to claim 1, it is characterized in that, described electrode bogey is made up of multiple bar, 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 the percutaneous according to any one of claim 1-4 is got involved, it is characterized in that, the length of described bar is equal 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, it is characterized in that, described electrode is laminated structure or circulus, and described electrode is fixed on described bar by the mode that gluing or heat are melted.
7. the frequency ablation electrode catheter of percutaneous intervention according to claim 6, it is characterized in that, the two ends of described laminated structure are embedded in described bar by the mode of hot melt.
8. the frequency ablation electrode catheter of percutaneous intervention according to claim 1, it is characterized in that, described core pipe is hollow structure.
9. the frequency ablation electrode catheter got involved of percutaneous according to claim 1, it is characterized in that, described outer tube is multi-lumen tube, and the near-end of described seal wire is connected with described electrode plug through the tube chamber of described multi-lumen tube.
10. the frequency ablation electrode catheter of percutaneous intervention according to claim 1, it is characterized in that, described handle is provided with locking device, when described outer tube and the described core pipe size that movement makes described bar radially expand in opposite directions meet requirements of operation, lock described core pipe, make it can not move relative to outer tube.
The frequency ablation electrode catheter that 11. percutaneous according to claim 1 are got involved, is characterized in that, be provided with the mark line of the height of pointing out described electrode to arch upward at the near-end of described core pipe.
The frequency ablation electrode catheter that 12. percutaneous according to claim 1 are got involved, it is characterized in that, described tune bending apparatus comprises tune curved hand grip, adjust curved knob, fixture, regulate silk and lid, described tune curved hand grip is provided with chute, described fixture is arranged in described chute, the curved knob sleeve of described tune in the outside of the described chute of described regulating handle and with described fixture threaded engagement, the near-end of described adjustment silk is fixed on described fixture, the far-end of described adjustment silk is fixed on the far-end of described outer tube, described lid is arranged at the near-end of described tune curved hand grip, and be connected with the curved knob buckle of described tune, to limit the position of the curved knob of described tune.
The frequency ablation electrode catheter that 13. percutaneous according to claim 1 are got involved, it is characterized in that, described bar is provided with pressure transducer and/or temperature sensor, and described pressure transducer and/or temperature sensor are connected 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 true CN103300917B (en) | 2016-03-23 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103654948B (en) * | 2013-11-12 | 2016-08-17 | 上海慧达医疗器械有限公司 | A kind of two pole band Pressure wire radio frequency ablation catheter for renal arteries |
| CN105943157B (en) * | 2016-07-11 | 2018-08-28 | 北京大学第一医院 | A kind of vein ablation needle |
| CN107753103B (en) * | 2017-11-10 | 2024-05-07 | 中山大学孙逸仙纪念医院 | A radiofrequency ablation electrode device for renal cysts |
| 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 |
| CN110537975B (en) * | 2019-10-15 | 2024-03-29 | 宜宾市第一人民医院 | Electric coagulation catheter for minimally invasive treatment of varicose veins |
| ES2947179T3 (en) * | 2020-06-29 | 2023-08-02 | Shanghai Shape Memory Alloy Co Ltd | electrode catheter system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1867299A (en) * | 2003-09-12 | 2006-11-22 | 明诺医学有限公司 | Selectable eccentric remodeling and/or ablation of atherosclerotic material |
| CN201469401U (en) * | 2009-08-21 | 2010-05-19 | 刘小青 | Spiral renal-artery-around renal sympathetic nerve radio-frequency ablation electrode catheter |
| CN102274074A (en) * | 2011-05-03 | 2011-12-14 | 上海微创电生理医疗科技有限公司 | Multi-electrode open-type radio frequency ablation catheter |
| CN102688093A (en) * | 2012-06-20 | 2012-09-26 | 深圳市惠泰医疗器械有限公司 | Renal artery cold saline water radio frequency ablation controllable electrode catheter |
| CN102697555A (en) * | 2012-06-08 | 2012-10-03 | 湖南依微迪医疗器械有限公司 | Multi-electrode hypertension endovascular radio-frequency ablation catheter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6179832B1 (en) * | 1997-09-11 | 2001-01-30 | Vnus Medical Technologies, Inc. | Expandable catheter having two sets of electrodes |
-
2013
- 2013-06-03 CN CN201310214129.8A patent/CN103300917B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1867299A (en) * | 2003-09-12 | 2006-11-22 | 明诺医学有限公司 | Selectable eccentric remodeling and/or ablation of atherosclerotic material |
| CN201469401U (en) * | 2009-08-21 | 2010-05-19 | 刘小青 | Spiral renal-artery-around renal sympathetic nerve radio-frequency ablation electrode catheter |
| CN102274074A (en) * | 2011-05-03 | 2011-12-14 | 上海微创电生理医疗科技有限公司 | Multi-electrode open-type radio frequency ablation catheter |
| CN102697555A (en) * | 2012-06-08 | 2012-10-03 | 湖南依微迪医疗器械有限公司 | Multi-electrode hypertension endovascular radio-frequency ablation catheter |
| CN102688093A (en) * | 2012-06-20 | 2012-09-26 | 深圳市惠泰医疗器械有限公司 | Renal artery cold saline water radio frequency ablation controllable electrode catheter |
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