CN104983462A - Radiofrequency ablation bipolar catheter and treatment device with same - Google Patents
Radiofrequency ablation bipolar catheter and treatment device with same Download PDFInfo
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- CN104983462A CN104983462A CN201510383661.1A CN201510383661A CN104983462A CN 104983462 A CN104983462 A CN 104983462A CN 201510383661 A CN201510383661 A CN 201510383661A CN 104983462 A CN104983462 A CN 104983462A
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Abstract
A radiofrequency ablation bipolar catheter is characterized by comprising a first outer conductor (1), a PTC thermistor layer (2), a second outer conductor (3), an insulated conduit (4), a first inner cable (5) and a second inner cable (6). The insulated conduit (4) is in the shape of a bar. The tail end of the insulated conduit (4) is in the shape of an arc. The barrel-shaped first outer conductor (1) and the barrel-shaped second outer conductor (3) are respectively arranged on the outer surface of the insulated conduit (4). The PTC thermistor layer (2) is arranged on the inner wall of the first outer conductor (1). The radiofrequency ablation bipolar catheter and a treatment device with the radiofrequency ablation bipolar catheter can accurately control ablation temperature through a PTC.
Description
Technical field
The present invention relates to medical radio-frequency ablation techniques field, especially a kind of radio-frequency (RF) ablation bipolar catheter and comprise the therapy equipment of this radio-frequency (RF) ablation bipolar catheter.
Background technology
It is the development trend of medical industry that Wicresoft melts, and wherein, heating ablation, because of its definite effect, has become the main flow melting class treatment means.Heating ablation mainly comprises: this three class of microwave, laser, radio frequency, often kind of heating ablation means all have respective strengths and weaknesses.This three classes Wicresoft thermal ablation therapy hands section, all realized by various ablating electrode, ablating electrode substantially can be divided into structure: hard electrode and flexible electrode, evaluation for interventional therapy through uterine artery is mainly by flexible electrode (blood vessel of shallow table is got involved and can be used hard electrode), such as varicosis, arrhythmia, the treatment of the diseases such as angiemphraxis, and nonvascular interventional therapy mainly directly or indirectly punctures by rigid electrode, such as percutaneous puncture ablation hepatocarcinoma, hysteromyoma, pulmonary carcinoma, thyroid nodule etc. (wherein, laser ablation, because of the particularity of laser fiber structure, no matter be that vascular gets involved or non-vascular is got involved, conduit is all needed to guide).In minimally-invasive treatment field, catheter ablating electrode has wide development space, wherein radiofrequency catheter electrode, has incomparable advantage.
Venous leg varicose not only misery but also affect attractive in appearance.To be main cause that the modal disease of Venous system is formed be varicosis seldom changes blood accumulation lower limb and destroy vein valve when accumulating over a long period because maintaining identical posture for a long time and produce that venous pressure is too high causes varicosis.
It similarly is that the distortion blood vessel of Aranea Lumbricus or the lump tuberosity vein as the burr abnormal expansion swelling and varicose occur because of human body and do not have self-regeneration to do the mechanism of film so varicosis is a kind of irreversible phenomenon that varicosis mostly occurs in emerge redness or blueness of lower limb leg skin.
Traditional High ligation of great saphenous vein and extract, stripping of varicose veins be treatment varicose veins of the lower extremity classics operation, but because it exists the defects such as the hospital stays is long, otch is many, the heavier impact of postoperative wound cicatrix is attractive in appearance, particularly much require the female patient that leg is attractive in appearance, fear this operation especially, so that delay the state of an illness.Along with improving constantly of living standard, some patients particularly young woman patient for treatment level proposes higher standard, not only requires disease therapy, and complication prevention occurs, and requires that otch is few, cuts little even non-incision, requires postoperative attractive in appearance etc.
Traditional vein is peeled off or is then needed rest 3 weeks after operative therapy, and the scar simultaneously stayed is also larger; The sclerosis of blood vessels therapy of another Non-surgical is then make cirso-locking by injection radioactive substance, normal body is had to the possibility necessarily damaging and have varicosis to recur.
It is a kind of method of novel therapeutic great saphenous varicose vein that radio-frequency (RF) ablation vein closes, and carries out in recent years, good results in states such as America and Europes.At present, multiple multicenter prospective randomized randomized clinical control study has confirmed vein endovenous radiofrequency closed treatment great saphenous varicose vein safely, effectively.
Summary of the invention
The object of the present invention is to provide a kind of radio-frequency (RF) ablation bipolar catheter and comprise the therapy equipment of this radio-frequency (RF) ablation bipolar catheter.
Technical scheme of the present invention is:
A kind of radio-frequency (RF) ablation bipolar catheter of the present invention, comprise the first outer conductor 1, PTC thermistor layer 2, second outer conductor 3, insulated conduit 4, first inner cable 5 and the second inner cable 6, described insulated conduit 4 is bar-shaped, its end is circular arc, insulated conduit 4 outer surface is respectively equipped with the first outer conductor 1 and the second outer conductor 3 of tubular, first outer conductor 1 inwall is provided with PTC thermistor layer 2, insulated conduit 4 inside is provided with the first inner cable 5 and the second inner cable 6, second outer conductor 3 is connected at insulated conduit 4 internal electric with the first inner cable 5, second inner cable 6 is connected by PTC thermistor layer 2 in insulated conduit 4 inside with the first outer conductor 1.
The material of described first outer conductor 1 and the second outer conductor 3 is medical 304 stainless steel materials.
The material of described insulated conduit 4 is polytetrafluoroethylene PTFE or Teflon.
A kind of therapy equipment comprising radio-frequency (RF) ablation bipolar catheter, it is characterized in that comprising the cable plug assembly 8 that is connected with the first inner cable 5 and the second inner cable 6 and Y-type three way type insulation tube 7, first inner cable 5 is connected with cable plug assembly 8 with the inside of the second inner cable 6 via Y-type three way type insulation tube 7.
The invention has the beneficial effects as follows:
Radio-frequency (RF) ablation bipolar catheter of the present invention and the therapy equipment comprising this radio-frequency (RF) ablation bipolar catheter have easy to use, pop-off, irritated few, pigmentation is lasting, efficient, without downright bad, treatment speed (course for the treatment of continues maximum 10-15 minute) for 300-400 pulse, in single course for the treatment of, the varicose of 80-100cm can be eliminated.
Radio-frequency (RF) ablation bipolar catheter of the present invention and the therapy equipment comprising this radio-frequency (RF) ablation bipolar catheter can be used for various types of varicose (little varicose), position is comprehensive, the not accessibility region (<0.3mm) of micropetrosis, and can be used for all types of skin.
Radio-frequency (RF) ablation bipolar catheter of the present invention and the therapy equipment comprising this radio-frequency (RF) ablation bipolar catheter can carry out accurately control to melting temperature by PTC.
Radio-frequency (RF) ablation bipolar catheter of the present invention may be used for carrying out dredging expansion to blood vessel.Radio-frequency (RF) ablation bipolar catheter of the present invention is the conduit of 3F, 5F, 8F tri-kinds of specifications, and transmission of radio-frequency energy is to two electrodes of catheter tip, thus heat is passed to Ink vessel transfusing.
Radio-frequency (RF) ablation bipolar catheter of the present invention can also be used to solidify (bipolar radio frequency power is delivered to the electrode of catheter tip, the tissue around heating duct) tissue in the endoscope or percutaneous surgery of gastrointestinal tract, digestive tract (comprising gallbladder ductus pancreaticus).
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention one.
Fig. 2 is the structural representation of embodiments of the invention two.
In figure: 1 be the first outer conductor, 2 for PTC thermistor layer, 3 be that the second outer conductor, 4 is Y-type three way type insulation tube, 8 is cable plug assembly for insulated conduit, 5 to be the first inner cable, 6 be the second inner cable, 7.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As Fig. 1, embodiment one.
Another kind of radio-frequency (RF) ablation bipolar catheter of the present invention, comprise the first outer conductor 1, PTC thermistor layer 2, second outer conductor 3, insulated conduit 4, first inner cable 5 and the second inner cable 6, described insulated conduit 4 is bar-shaped, its end is circular arc, insulated conduit 4 outer surface is respectively equipped with the first outer conductor 1 and the second outer conductor 3 of tubular, first outer conductor 1 inwall is provided with PTC thermistor layer 2, insulated conduit 4 inside is provided with the first inner cable 5 and the second inner cable 6, second outer conductor 3 is connected at insulated conduit 4 internal electric with the first inner cable 5, second inner cable 6 is connected by PTC thermistor layer 2 in insulated conduit 4 inside with the first outer conductor 1.
The material of described first outer conductor 1 and the second outer conductor 3 is medical 304 stainless steel materials.
The material of described insulated conduit 4 is polytetrafluoroethylene PTFE or Teflon.
As Fig. 2, embodiment two.
A kind of therapy equipment comprising radio-frequency (RF) ablation bipolar catheter, it is characterized in that comprising the cable plug assembly 8 that is connected with the first inner cable 5 and the second inner cable 6 and Y-type three way type insulation tube 7, first inner cable 5 is connected with cable plug assembly 8 with the inside of the second inner cable 6 via Y-type three way type insulation tube 7.
Radio-frequency (RF) ablation bipolar catheter of the present invention and comprise the therapy equipment heat-treatment temperature range of this radio-frequency (RF) ablation bipolar catheter, such as about 80 DEG C to 120 DEG C, preferably 100 DEG C.Thus when realizing solidified structure, ablation needle is not sticky glutinous, does not cause again hemorrhage complication equivalent risk.
Radiofrequency ablation therapy mechanism of the present invention is the high heat of local organization in the limited range that only contacts with emission electrode, and make its degeneration, heat is organized in conductive process towards periphery and dispersed rapidly, stops heat to spread to deep tissues.During radio-frequency (RF) ablation, the enough heats in local act on wall of vein, cause collagen shrinkage, endotheliocyte exposed, thus cause wall of vein to thicken, and tube chamber contraction, rapidly machine also form fibrous bands, finally make vein close.Because temperature during treatment is limited in uniform temperature, avoids the burning of tissue, solidify, vaporize and carbonization.
Radiofrequency therapy of the present invention is on rear side of knee, do a minimal incision *, and conduit is inserted vein, and rf probe subsidiary in conduit emitted energy and heat production in vein, make vein atrophy and packing.Because varicosis is caused by the blood backflow in saphena and branch thereof, this vein of packing can alleviate the symptoms such as leg fatigue, pain and pruritus.Patient can carry out normal activity immediately after accepting this therapy.It is easy, practical, attractive in appearance that endovenous radiofrequency melts Closure associating electric coagulation treatment varicose veins of the lower extremity, meets patient to requirement attractive in appearance, deeply favor by female patient.
Embodiment recited above is only be described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under design concept prerequisite of the present invention; the various modification that in this area, common engineers and technicians make technical scheme of the present invention and improvement; all should fall into protection scope of the present invention, the technology contents of request protection of the present invention is all recorded in detail in the claims.
Claims (4)
1. a radio-frequency (RF) ablation bipolar catheter, it is characterized in that comprising the first outer conductor (1), PTC thermistor layer (2), second outer conductor (3), insulated conduit (4), first inner cable (5) and the second inner cable (6), described insulated conduit (4) is for bar-shaped, its end is circular arc, insulated conduit (4) outer surface is respectively equipped with the first outer conductor (1) and second outer conductor (3) of tubular, first outer conductor (1) inwall is provided with PTC thermistor layer (2), insulated conduit (4) inside is provided with the first inner cable (5) and the second inner cable (6), second outer conductor (3) is connected at insulated conduit (4) internal electric with the first inner cable (5), second inner cable (6) is connected by PTC thermistor layer (2) in insulated conduit (4) inside with the first outer conductor (1).
2. radio-frequency (RF) ablation bipolar catheter according to claim 1, is characterized in that the material of described first outer conductor (1) and the second outer conductor (3) is medical 304 stainless steel materials.
3. radio-frequency (RF) ablation bipolar catheter according to claim 1, is characterized in that the material of described insulated conduit (4) is politef (PTFE) or Teflon.
4. one kind comprises the therapy equipment of the radio-frequency (RF) ablation bipolar catheter as described in claims 1 to 3, it is characterized in that comprising the cable plug assembly (8) and Y-type three way type insulation tube (7) that are connected with the first inner cable (5) and the second inner cable (6), the first inner cable (5) is connected with cable plug assembly (8) with the inside of the second inner cable (6) via Y-type three way type insulation tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510383661.1A CN104983462A (en) | 2015-07-02 | 2015-07-02 | Radiofrequency ablation bipolar catheter and treatment device with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510383661.1A CN104983462A (en) | 2015-07-02 | 2015-07-02 | Radiofrequency ablation bipolar catheter and treatment device with same |
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| CN104983462A true CN104983462A (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510383661.1A Pending CN104983462A (en) | 2015-07-02 | 2015-07-02 | Radiofrequency ablation bipolar catheter and treatment device with same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017000362A1 (en) * | 2015-07-02 | 2017-01-05 | 安隽医疗科技(南京)有限公司 | Radiofrequency ablation catheter and treatment device containing radiofrequency ablation catheter |
| CN114533255A (en) * | 2022-01-17 | 2022-05-27 | 安隽医疗科技(南京)有限公司 | Bipolar through radio frequency ablation catheter system |
| CN114557765A (en) * | 2022-01-17 | 2022-05-31 | 安隽医疗科技(南京)有限公司 | Bipolar three-way radio frequency ablation catheter system |
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| WO1996000039A1 (en) * | 1994-06-27 | 1996-01-04 | Ep Technologies, Inc. | Systems and methods for sensing temperature within the body |
| US6156032A (en) * | 1998-09-30 | 2000-12-05 | Scimed Life Systems, Inc. | Method for causing a stricture of a body passageway |
| US20030078577A1 (en) * | 2001-10-22 | 2003-04-24 | Csaba Truckai | Electrosurgical jaw structure for controlled energy delivery |
| US20040215185A1 (en) * | 2001-10-18 | 2004-10-28 | Csaba Truckai | Electrosurgical working end for cotrolled energy delivery |
| US20070078543A1 (en) * | 2005-10-05 | 2007-04-05 | Sony Ericsson Mobile Communications Ab | Method of combining audio signals in a wireless communication device |
| CN102892453A (en) * | 2010-03-12 | 2013-01-23 | 圣犹达医疗用品电生理部门有限公司 | Magnetically guided catheter |
| CN104173105A (en) * | 2014-09-18 | 2014-12-03 | 安隽医疗科技(南京)有限公司 | Novel bipolar ablation needle |
| CN204814173U (en) * | 2015-07-02 | 2015-12-02 | 安隽医疗科技(南京)有限公司 | Radio frequency melts bipolar pipe and contains treatment device that this radio frequency melts bipolar pipe |
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2015
- 2015-07-02 CN CN201510383661.1A patent/CN104983462A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000039A1 (en) * | 1994-06-27 | 1996-01-04 | Ep Technologies, Inc. | Systems and methods for sensing temperature within the body |
| US6156032A (en) * | 1998-09-30 | 2000-12-05 | Scimed Life Systems, Inc. | Method for causing a stricture of a body passageway |
| US20040215185A1 (en) * | 2001-10-18 | 2004-10-28 | Csaba Truckai | Electrosurgical working end for cotrolled energy delivery |
| US20030078577A1 (en) * | 2001-10-22 | 2003-04-24 | Csaba Truckai | Electrosurgical jaw structure for controlled energy delivery |
| US20070078543A1 (en) * | 2005-10-05 | 2007-04-05 | Sony Ericsson Mobile Communications Ab | Method of combining audio signals in a wireless communication device |
| CN102892453A (en) * | 2010-03-12 | 2013-01-23 | 圣犹达医疗用品电生理部门有限公司 | Magnetically guided catheter |
| CN104173105A (en) * | 2014-09-18 | 2014-12-03 | 安隽医疗科技(南京)有限公司 | Novel bipolar ablation needle |
| CN204814173U (en) * | 2015-07-02 | 2015-12-02 | 安隽医疗科技(南京)有限公司 | Radio frequency melts bipolar pipe and contains treatment device that this radio frequency melts bipolar pipe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017000362A1 (en) * | 2015-07-02 | 2017-01-05 | 安隽医疗科技(南京)有限公司 | Radiofrequency ablation catheter and treatment device containing radiofrequency ablation catheter |
| CN114533255A (en) * | 2022-01-17 | 2022-05-27 | 安隽医疗科技(南京)有限公司 | Bipolar through radio frequency ablation catheter system |
| CN114557765A (en) * | 2022-01-17 | 2022-05-31 | 安隽医疗科技(南京)有限公司 | Bipolar three-way radio frequency ablation catheter system |
| CN114533255B (en) * | 2022-01-17 | 2023-11-17 | 安隽医疗科技(南京)有限公司 | Bipolar straight-through radio frequency ablation catheter system |
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Application publication date: 20151021 |