CN103860258A - Self-adaptive annular positioning endovascular catheter - Google Patents
Self-adaptive annular positioning endovascular catheter Download PDFInfo
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- CN103860258A CN103860258A CN201210537393.0A CN201210537393A CN103860258A CN 103860258 A CN103860258 A CN 103860258A CN 201210537393 A CN201210537393 A CN 201210537393A CN 103860258 A CN103860258 A CN 103860258A
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Abstract
Disclosed is a self-adaptive annular positioning endovascular catheter. The self-adaptive annular positioning endovascular catheter improves the positioning mode of electrodes and is simple in operation, flexible in adjustment and time-saving. The self-adaptive annular positioning endovascular catheter is characterized by comprising an inner catheter and a catheter sheath, wherein the catheter slidingly sleeves the inner catheter in the axial direction, and the outer wall of the front portion of the inner catheter is annularly provided with a support rack in the axial direction, which is made of NiTi alloy materials.
Description
Technical field
The present invention relates to the intervention therapeutic apparatus technology of biomedical engineering, particularly a kind of self-adapting type hoop positioning chamber inner catheter.
Background technology
Interventional therapy belongs to invasive operation, through long-term a large amount of clinical observation, proves a kind of very effective treatment means.But the design of its interposing catheter and the limitation of technical elements are limited by very large its range of application and therapeutic effect.The inventor thinks, develops and has the lifting of pinpoint interposing catheter for interventional therapy therapeutic effect, has extremely important using value.
Summary of the invention
The present invention is directed to the defect or the deficiency that in prior art, exist, a kind of self-adapting type hoop positioning chamber inner catheter is provided, described conduit has improved the location of electrode, easy and simple to handle, and flexible adjustment is saved time.
Technical scheme of the present invention is as follows:
Self-adapting type hoop positioning chamber inner catheter, it is characterized in that, comprise inner catheter and catheter sheath, described catheter sheath slides axially and is set on described inner catheter, on the anterior outer tube wall of described inner catheter, be equipped with vertically supporting bracket, described supporting bracket adopts nickel-titanium alloy material.
Described supporting bracket is self-expansion type support.
Described self-expansion type support is the self-expansion type support that is woven or adopted open loop type design laser engraving to form by Nitinol pipe by nitinol alloy wire.
Described supporting bracket has fixed position, and described fixed position is fixed on described inner catheter by retainer ring.
The front portion of described catheter sheath is provided with the recycling cavity of described supporting bracket, when described catheter sheath slides backward, described supporting bracket discharges while expands from the anterior outer tube wall of described inner catheter, when described catheter sheath is toward front slide, described supporting bracket shrinks while is recycled to described recycling cavity.
On described supporting bracket, be distributed with therapeutic electrode, described therapeutic electrode is connected with wire, and described therapeutic electrode is spiral along the periphery of described supporting bracket and intermittently distributes.
Described inner catheter is multi-cavity catheter, comprise guidewire lumen and guidewire lumen, on described supporting bracket, be distributed with therapeutic electrode, described therapeutic electrode is connected with the wire in described guidewire lumen, described therapeutic electrode is the electrode wires of whole, the electrode wires of described one whole is wound around along the periphery of described supporting bracket with spiral type, and the electrode wires being wrapped on described periphery has electrode insulation section spaced apart.
The rear end of described inner catheter is connected with transducer and guidewire lumen handle in turn, and described transducer connects radiofrequency melting instrument union joint by connecting line.
The rear end of described inner catheter is connected with transducer and guidewire lumen handle in turn, described transducer connects union joint by connecting line, described union joint connects interventional therapy implements interface, described interventional therapy implements interface connects the one with lower device: radio-frequency unit, microwave device, superconducting device, plasma apparatus, current device.
The rear end connecting duct sheath handle of described catheter sheath, is provided with protection lock on described catheter sheath handle.
Technique effect of the present invention is as follows: self-adapting type hoop positioning chamber inner catheter of the present invention, it is as the interposing catheter of interventional therapy in invasive operation, its body has an adaptive deformation section, described adaptive deformation section can be according to the change of shape of blood vessel, the change of shape feature with self adaptation hoop location, makes conduit be conducive to the signal in its interventional therapy to be sent to desired position.For example, self-adapting type hoop positioning chamber inner catheter of the present invention can be used as medical apparatus and instruments for following treatment: block nerves; For the blocking-up of renal artery sympathetic plexus.
Described hoop location, refers to that, on the circumferencial direction of renal artery blood vessel, whole circumference universe is exhaustively furnished with the electrode for the treatment of, can accurately observe the distributing position of electrode in length of vessel direction, facilitates the location for the treatment of position.Described self-adapting type refers to the interposing catheter of this intraluminal catheter as interventional therapy, its body head has an adaptive deformation section, be conducive to make ablating electrode head to adhere well to renal artery inwall, multiple electrodes contact with the effective of blood vessel appropriateness, blood vessel wall is formed to multiple contact ablation points, and ring renal artery one chow ring is to all kidney Sympathetic Primary Afferent Nerves of location blocking-up.Described conduit is conducive to the accurate location of therapeutic electrode.
Accompanying drawing explanation
Fig. 1 implements self-adapting type hoop positioning chamber inner catheter structural representation of the present invention.
Fig. 2 is A-A generalized section.
Fig. 3 is that intraluminal catheter head and support discharge schematic diagram.
Fig. 4 is lamellar and wire electrode blocking-up kidney sympathetic nerve intraluminal catheter head schematic diagram.
Reference numeral lists as follows: 1-seal wire; 2-guidewire lumen handle; 3-multi-cavity catheter; 4-union joint; 5-connecting line; 6-transducer; 7-catheter sheath handle; 8-protection lock; 9-catheter sheath; 10-retainer ring; 11-supporting bracket; 12-therapeutic electrode; 13-guidewire lumen; 14-guidewire lumen; 15-wire (electric wire); 16-recycling cavity; 17-electrode insulation section.
The specific embodiment
Below in conjunction with accompanying drawing (Fig. 1-Fig. 4), the present invention will be described.
Fig. 1 implements self-adapting type hoop positioning chamber inner catheter structural representation of the present invention.Fig. 2 is A-A generalized section.Fig. 3 is that intraluminal catheter head and support discharge schematic diagram.Fig. 4 is lamellar and wire electrode blocking-up kidney sympathetic nerve intraluminal catheter head schematic diagram.As Figure 1-Figure 4, self-adapting type hoop positioning chamber inner catheter, it is characterized in that, comprise that inner catheter (for example, multi-cavity catheter 3) and catheter sheath 9, described catheter sheath 9 slides axially and is set on described inner catheter, on the anterior outer tube wall of described inner catheter, is equipped with vertically supporting bracket 11, and described supporting bracket 11 adopts nickel-titanium alloy material.Described supporting bracket 11 is self-expansion type supports.Described self-expansion type support is the self-expansion type support that is woven or adopted open loop type design laser engraving to form by Nitinol pipe by nitinol alloy wire.Described supporting bracket 11 has fixed position, and described fixed position is fixed on described inner catheter by retainer ring 10.The front portion of described catheter sheath 9 is provided with the recycling cavity 16 of described supporting bracket 11, when described catheter sheath 9 slides backward, described supporting bracket 11 discharges while expands from the anterior outer tube wall of described inner catheter, when described catheter sheath is toward front slide, described supporting bracket 11 shrinks while is recycled to described recycling cavity 16.On described supporting bracket 11, be distributed with therapeutic electrode 12, described therapeutic electrode 12 is connected with wire 15, and described therapeutic electrode 12 is spiral along the periphery of described supporting bracket 11 and intermittently distributes.Described inner catheter is multi-cavity catheter 3, comprise guidewire lumen 13 and guidewire lumen 14, on described supporting bracket 11, be distributed with therapeutic electrode 12, described therapeutic electrode 12 is connected with the wire 15 in described guidewire lumen 13, described therapeutic electrode 12 is the electrode wires of whole, the electrode wires of described one whole is wound around along the periphery of described supporting bracket with spiral type, and the electrode wires being wrapped on described periphery has electrode insulation section 17 spaced apart.The rear end of described inner catheter is connected with transducer 6 and guidewire lumen handle 2 in turn, and described transducer 6 connects radiofrequency melting instrument union joint by connecting line 5.The rear end of described inner catheter is connected with transducer 6 and guidewire lumen handle 2 in turn, described transducer 6 connects union joint 4 by connecting line 5, described union joint 4 connects interventional therapy implements interface, described interventional therapy implements interface connects the one with lower device: radio-frequency unit, microwave device, superconducting device, plasma apparatus, current device.The rear end connecting duct sheath handle 7 of described catheter sheath 9, is provided with protection lock 8 on described catheter sheath handle 7.
Self-adapting type hoop positioning chamber inner catheter mainly by guiding seal wire, delivery pipe body, positioning control, release and recycling cavity (being arranged in catheter sheath), electrode supporting support, transfer wire, therapeutic electrode etc. and form.The external diameter of described delivery conduit body is 0.5mm～7mm; The length of described catheter tube is 0.1cm～150cm.Multi-lumen tube in described delivery pipe body is 2～17 chambeies, and multi-lumen tube and catheter sheath are made with the material with good elasticity, hardness and rigidity.The self-expansion type support that described supporting bracket is formed by nitinol alloy wire braiding (or nickel alloy pipe adopts open loop type design laser engraving), it has fabulous submissive and adherent performance, the size of its hyperelastic feature energy self adaptation blood vessel.The maximum gauge of described supporting bracket is within the scope of 5mm～50mm, and supporting bracket surface scribbles insulating barrier.The radical of described nickel alloy wire is within the scope of 7～50, and string diameter is 0.05～1mm.Described electrode shape is lamellar, thread, flat, circle etc., and electrode braiding (paste, welding) is in supporting bracket surface.The width of electrode is within the scope of 1～3mm, electrodeplate is 1～20, on electrode, being distributed with 1～8 temperature sensor. described union joint connects interventional therapy implements interface, described interventional therapy implements interface connects the one with lower device: radio-frequency unit, microwave device, superconducting device, plasma apparatus, current device.The material of described catheter tube adopts following material: thermoplastic elastomer (s), polyurethane, politef, nylon, polyethylene, polrvinyl chloride, polyester, bioceramic, polymer, noble metal, ti-ni shape memory alloy, cochrome, titanium alloy, 316L rustless steel, degradation material.
Indicate at this, above narration contributes to those skilled in the art to understand the invention, but and the protection domain of unrestricted the invention.Any do not depart from the invention flesh and blood to being equal to replacement, modifying and improve and/or delete numerous conforming to the principle of simplicity and the enforcement carried out of above narration, all fall into the protection domain of the invention.
Claims (10)
1. self-adapting type hoop positioning chamber inner catheter, it is characterized in that, comprise inner catheter and catheter sheath, described catheter sheath slides axially and is set on described inner catheter, on the anterior outer tube wall of described inner catheter, be equipped with vertically supporting bracket, described supporting bracket adopts nickel-titanium alloy material.
2. self-adapting type hoop positioning chamber inner catheter according to claim 1, is characterized in that, described supporting bracket is self-expansion type support.
3. self-adapting type hoop positioning chamber inner catheter according to claim 2, is characterized in that, described self-expansion type support is the self-expansion type support that is woven or adopted open loop type design laser engraving to form by Nitinol pipe by nitinol alloy wire.
4. self-adapting type hoop positioning chamber inner catheter according to claim 1, is characterized in that, described supporting bracket has fixed position, and described fixed position is fixed on described inner catheter by retainer ring.
5. self-adapting type hoop positioning chamber inner catheter according to claim 1, it is characterized in that, in the front inner wall of described catheter sheath, be provided with the recycling cavity of described supporting bracket, when described catheter sheath slides backward, described supporting bracket discharges while expands from the anterior outer tube wall of described inner catheter, when described catheter sheath is toward front slide, described supporting bracket shrinks while is recycled to described recycling cavity.
6. self-adapting type hoop positioning chamber inner catheter according to claim 1, is characterized in that, on described supporting bracket, be distributed with therapeutic electrode, described therapeutic electrode is connected with wire, and described therapeutic electrode is spiral along the periphery of described supporting bracket and intermittently distributes.
7. self-adapting type hoop positioning chamber inner catheter according to claim 1, it is characterized in that, described inner catheter is multi-cavity catheter, comprise guidewire lumen and guidewire lumen, on described supporting bracket, be distributed with therapeutic electrode, described therapeutic electrode is connected with the wire in described guidewire lumen, and described therapeutic electrode is the electrode wires of whole, the electrode wires of described one whole is wound around along the periphery of described supporting bracket with spiral type, and the electrode wires being wrapped on described periphery has electrode insulation section spaced apart.
8. self-adapting type hoop positioning chamber inner catheter according to claim 1, is characterized in that, the rear end of described inner catheter is connected with transducer and guidewire lumen handle in turn, and described transducer connects radiofrequency melting instrument union joint by connecting line.
9. self-adapting type hoop positioning chamber inner catheter according to claim 1, it is characterized in that, the rear end of described inner catheter is connected with transducer and guidewire lumen handle in turn, described transducer connects union joint by connecting line, and described union joint connects interventional therapy implements interface, and described interventional therapy implements interface connects the one with lower device: radio-frequency unit, microwave device, superconducting device, plasma apparatus, current device.
10. self-adapting type hoop positioning chamber inner catheter according to claim 1, is characterized in that, the rear end connecting duct sheath handle of described catheter sheath, is provided with protection lock on described catheter sheath handle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210537393.0A CN103860258A (en) | 2012-12-12 | 2012-12-12 | Self-adaptive annular positioning endovascular catheter |
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| CN201210537393.0A CN103860258A (en) | 2012-12-12 | 2012-12-12 | Self-adaptive annular positioning endovascular catheter |
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| CN103860258A true CN103860258A (en) | 2014-06-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110461400A (en) * | 2017-07-31 | 2019-11-15 | 凯奇股份有限公司 | Steerable medical device and method of making same |
| CN111513837A (en) * | 2019-02-03 | 2020-08-11 | 上海魅丽纬叶医疗科技有限公司 | Radio frequency ablation catheter with movable guide wire function |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264482C (en) * | 2003-03-28 | 2006-07-19 | 佐竹修太郎 | Radiofrequency Hot Balloon Catheter |
| CN201223445Y (en) * | 2008-06-23 | 2009-04-22 | 北京有色金属研究总院 | Radio frequency ablation catheter |
| CN101563043A (en) * | 2006-11-28 | 2009-10-21 | 皇家飞利浦电子股份有限公司 | Apparatus, method and computer program for applying energy to an object |
| CN100563594C (en) * | 2001-05-01 | 2009-12-02 | 咖帝玛股份有限公司 | Electrophysiology device |
| CN101686848B (en) * | 2007-08-10 | 2011-04-06 | 北京美中双和医疗器械有限公司 | Electrophysiology ablation device |
| CN201840518U (en) * | 2010-09-29 | 2011-05-25 | 心诺普医疗技术（北京）有限公司 | Melting system |
| CN102198015A (en) * | 2011-05-03 | 2011-09-28 | 上海微创电生理医疗科技有限公司 | Retractable spiral laminar ring type electrode catheter |
| WO2012015720A1 (en) * | 2010-07-30 | 2012-02-02 | Boston Scientific Scimed, Inc. | Sequential activation rf electrode set for renal nerve ablation |
| WO2012068471A1 (en) * | 2010-11-19 | 2012-05-24 | Boston Scientific Scimed, Inc. | Renal nerve detection and ablation apparatus and method |
| US20120197100A1 (en) * | 2011-01-05 | 2012-08-02 | Mehdi Razavi | Guided Ablation Devices, Systems, And Methods |
| CN202386778U (en) * | 2011-11-29 | 2012-08-22 | 北京天助畅运医疗技术股份有限公司 | Radio-frequency melting device |
| CN102711645A (en) * | 2009-11-11 | 2012-10-03 | 创新肺部方案公司 | Systems, apparatuses, and methods for treating tissue and controlling stenosis |
| WO2012145072A1 (en) * | 2011-04-22 | 2012-10-26 | Topera, Inc. | Basket style cardiac mapping catheter having a flexible electrode assembly for detection of cardiac rhythm disorders |
| CN202537649U (en) * | 2012-04-10 | 2012-11-21 | 北京中孵友信医药科技股份有限公司 | Intracavity catheter with global location function |
| WO2012158864A1 (en) * | 2011-05-18 | 2012-11-22 | St. Jude Medical, Inc. | Apparatus and method of assessing transvascular denervation |
-
2012
- 2012-12-12 CN CN201210537393.0A patent/CN103860258A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100563594C (en) * | 2001-05-01 | 2009-12-02 | 咖帝玛股份有限公司 | Electrophysiology device |
| CN1264482C (en) * | 2003-03-28 | 2006-07-19 | 佐竹修太郎 | Radiofrequency Hot Balloon Catheter |
| CN101563043A (en) * | 2006-11-28 | 2009-10-21 | 皇家飞利浦电子股份有限公司 | Apparatus, method and computer program for applying energy to an object |
| CN101686848B (en) * | 2007-08-10 | 2011-04-06 | 北京美中双和医疗器械有限公司 | Electrophysiology ablation device |
| CN201223445Y (en) * | 2008-06-23 | 2009-04-22 | 北京有色金属研究总院 | Radio frequency ablation catheter |
| CN102711645A (en) * | 2009-11-11 | 2012-10-03 | 创新肺部方案公司 | Systems, apparatuses, and methods for treating tissue and controlling stenosis |
| WO2012015720A1 (en) * | 2010-07-30 | 2012-02-02 | Boston Scientific Scimed, Inc. | Sequential activation rf electrode set for renal nerve ablation |
| CN201840518U (en) * | 2010-09-29 | 2011-05-25 | 心诺普医疗技术（北京）有限公司 | Melting system |
| WO2012068471A1 (en) * | 2010-11-19 | 2012-05-24 | Boston Scientific Scimed, Inc. | Renal nerve detection and ablation apparatus and method |
| US20120197100A1 (en) * | 2011-01-05 | 2012-08-02 | Mehdi Razavi | Guided Ablation Devices, Systems, And Methods |
| WO2012145072A1 (en) * | 2011-04-22 | 2012-10-26 | Topera, Inc. | Basket style cardiac mapping catheter having a flexible electrode assembly for detection of cardiac rhythm disorders |
| CN102198015A (en) * | 2011-05-03 | 2011-09-28 | 上海微创电生理医疗科技有限公司 | Retractable spiral laminar ring type electrode catheter |
| WO2012158864A1 (en) * | 2011-05-18 | 2012-11-22 | St. Jude Medical, Inc. | Apparatus and method of assessing transvascular denervation |
| CN202386778U (en) * | 2011-11-29 | 2012-08-22 | 北京天助畅运医疗技术股份有限公司 | Radio-frequency melting device |
| CN202537649U (en) * | 2012-04-10 | 2012-11-21 | 北京中孵友信医药科技股份有限公司 | Intracavity catheter with global location function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110461400A (en) * | 2017-07-31 | 2019-11-15 | 凯奇股份有限公司 | Steerable medical device and method of making same |
| CN111513837A (en) * | 2019-02-03 | 2020-08-11 | 上海魅丽纬叶医疗科技有限公司 | Radio frequency ablation catheter with movable guide wire function |
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Application publication date: 20140618 |