CN103349810A - Micro-tube assembly - Google Patents
Micro-tube assembly Download PDFInfo
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- CN103349810A CN103349810A CN2013103107538A CN201310310753A CN103349810A CN 103349810 A CN103349810 A CN 103349810A CN 2013103107538 A CN2013103107538 A CN 2013103107538A CN 201310310753 A CN201310310753 A CN 201310310753A CN 103349810 A CN103349810 A CN 103349810A
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Abstract
The invention discloses a micro-tube assembly which comprises an outer tube. The tail end of the outer tube is connected with an outer tube connector. An inner tube is inserted into the middle portion of the outer tube in a sliding and coaxial mode. The tail end of the inner tube is connected with an inner tube connector. The middle portion of the inner tube is provided with an inner tube cavity matched with a guiding wire. The front end of the inner tube penetrates through and extends out of the front end of the outer tube. When the micro-tube assembly is in operation, a conic transition structure is formed by the guiding wire, the front end of the inner tube and the front end of the outer tube in a sequentially matched mode, so that the thrombus passing capacity of the micro-tube assembly is effectively improved, the phenomenon of thrombus breakage when the thrombus is taken is avoided or released. The thrombus taking process is flexible and controllable, so that the thrombus taking efficiency is greatly improved and the operation process is more simple and convenient. Meanwhile, in the process of a common operation, the micro-tube assembly of the conic transition structure can be rapidly and effectively conveyed to the target blood vessel, so that the blood vessel is prevented from being damaged in the process.
Description
Technical field
The present invention relates to clinical treatment technique with the apparatus field, particularly a kind of microtubular assembly.
Background technology
In present clinical treatment field, be not limited only to traditional medicine thromboembolism treatment for the therapeutic modality of thrombosis, the Therapeutic Method that adopts machinery to get bolt becomes the major way for the treatment of thrombosis gradually.
Present existing machinery is got in the bolt process, usually need to be via a catheter channel from the external target blood that is delivered to, and in order to guarantee that getting pin device can effectively work, device need to be released in the far-end at blood vessel embolism position or thromboembolism position, this tip that just requires delivery conduit is first by the blood vessel embolism position.Because the blood coagulation of diseased region or some visible component in the blood be sticking collection mutually, form solid matter piece, when catheter tip is passed from solid matter piece inside, how to accomplish that can not smash again conduit to pieces clot by the blood vessel of tortuous or multiple speckle smoothly is technological difficulties.
Therefore, how so that get more simple and effective of bolt process, and the risk that reduces its thrombosis fragmentation is the important technological problems that those skilled in the art need to solve at present.
Summary of the invention
The purpose of this invention is to provide a kind of microtubular assembly, the bolt process of the getting simple and effective of this microtubular assembly, and it gets difficult generation thrombosis fragmentation in the bolt process.
For solving the problems of the technologies described above, the invention provides a kind of microtubular assembly, comprise outer tube, the end of described outer tube is connected with outer tube joint, the middle part of described outer tube is the coaxial inner tube that is fitted with slidably, the end of described inner tube is connected with inner pipe joint, and the middle part of described inner tube has the interior tube chamber suitable with seal wire, and the front end of described inner tube runs through and stretch out in the front end of described outer tube.
Preferably, the front end of described inner tube stretches out in 1～50 millimeter of the front end of described outer tube.
Preferably, the far-end outer rim of described outer tube is equipped with the outer tube indicating, and proximal outer tube and outer tube joint junction are arranged with outer tube strain relief sleeve pipe; Described outer tube is three-decker, and the internal layer material is politef, and the intermediate layer is comprised of any one or two kinds in steel wire, the helical spring; Outer field material is the nylon elastomer of nylon, block polyamide, in the polyurethane any one.
Preferably, the far-end outer rim of described inner tube is equipped with the inner tube indicating, inner tube near-end and inner pipe joint junction are arranged with inner tube strain relief sleeve pipe, described inner tube is inside and outside two-layer, the material politef of internal layer, outer field material be the nylon elastomer of nylon, block polyamide, in the polyurethane any one.
Relative above-mentioned background technology, microtubular assembly provided by the present invention, comprise outer tube, the end of described outer tube is connected with outer tube joint, the middle part of described outer tube is the coaxial inner tube that is fitted with slidably, the end of described inner tube is connected with inner pipe joint, and the middle part of described inner tube has the interior tube chamber suitable with seal wire, and the front end of described inner tube runs through and stretch out in the front end of described outer tube.In the work process, cooperate successively between seal wire, described inner tube front end and described outer tube front end three and form the tapering transition structure, thereby Effective Raise the thrombosis handling capacity of described microtubular assembly, avoid or alleviated getting contingent thrombosis Fragmentation Phenomena in the bolt process, and it is controlled more flexibly that it gets the bolt process, get bolt efficient thereby greatly improved it, and make its operating process more simple and easy to do; Simultaneously, in general operation process, the described microtubular assembly with this kind tapering transition structure can fast and effeciently be delivered to target blood, and avoids this process to the blood vessel injury.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The assembly structure sketch map of the microtubular assembly that Fig. 1 provides for a kind of specific embodiment of the present invention;
Fig. 2 is the assembly structure sketch map of Fig. 1 middle external tube part;
Fig. 3 is the assembly structure sketch map of interior tube portion among Fig. 1.
The specific embodiment
Core of the present invention provides a kind of microtubular assembly, the bolt process of the getting simple and effective of this microtubular assembly, and it gets difficult generation thrombosis fragmentation in the bolt process.
In order to make those skilled in the art person understand better the present invention program, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the assembly structure sketch map of the microtubular assembly that Fig. 1 provides for a kind of specific embodiment of the present invention; Fig. 2 is the assembly structure sketch map of Fig. 1 middle external tube part; Fig. 3 is the assembly structure sketch map of interior tube portion among Fig. 1.
In the specific embodiment, microtubular assembly provided by the present invention, comprise outer tube 2, the end of outer tube 2 is connected with outer tube joint 4, the middle part of outer tube 2 is the coaxial inner tube 6 that is fitted with slidably, the end of inner tube 6 is connected with inner pipe joint 8, and the middle part of inner tube 6 has the interior tube chamber (not shown) suitable with seal wire, and the front end of inner tube 6 runs through and stretch out in the front end of outer tube 2.In the work process, cooperate successively between seal wire, inner tube 6 front ends and outer tube 2 front end threes and form the tapering transition structure, thereby Effective Raise the thrombosis handling capacity of described microtubular assembly, avoid or alleviated getting contingent thrombosis Fragmentation Phenomena in the bolt process, and it is controlled more flexibly that it gets the bolt process, get bolt efficient thereby greatly improved it, and make its operating process more simple and easy to do; Simultaneously, in general operation process, the described microtubular assembly with this kind tapering transition structure can fast and effeciently be delivered to target blood, and avoids this process to the blood vessel injury.
Outer tube 2 is used for apparatus is transported to the target location, and operation withdraws from it after finishing externally, and its internal diameter is 0.61～2.1 millimeter, and external diameter is 0.81～2.5 millimeter, and effective length (not comprising joint and strain relief sleeve pipe) is 120～140 centimetres.The far-end outer rim of outer tube 2 is equipped with the outer tube indicating 1 that can develop under the X ray, and outer tube indicating 1 external diameter is 0.71～2.2 millimeter, adopts platinum, platinum alloy, gold, Nitinol or rustless steel, is connected with outer tube by the mode of welding.Outer tube 2 near-ends are connected with outer tube joint 4, and outer tube 2 near-ends and outer tube joint 4 junctions are equipped with outer tube strain relief sleeve pipe 3.
Outer tube is three-decker, and internal layer adopts politef, and endoporus can obtain less frictional resistance during use; The intermediate layer is comprised of any one or two kinds in steel wire, the helical spring, and steel wire is with rustless steel, tungsten or the nitinol alloy wire of 0.01～0.06 millimeter of diameter.Steel wire is in order to guarantee to carry the thrust that reclaims conduit outer tube 9, helical spring turns to rustless steel, tungsten filament or the nitinol alloy wire of 0.01～0.07 millimeter of diameter, pitch is 0.012～0.1 millimeter, external diameter is 0.71～2.2 millimeter, helical spring guarantees to carry the fracture resistance that reclaims the conduit outer tube, also can increase the X-ray visuality.Nylon elastomer or the polyurethane of outer employing nylon, block polyamide are material.
Inner tube 6 places in the outer tube 2, strengthen outer tube 2 enabling capabilities, be used for helping outer tube 2 intravasations to reach smooth and easy delivery guidewire in blood vessel, its internal diameter is 0.43～1.82 millimeter, external diameter is 0.60～2.0 millimeter, and effective length (not comprising joint and strain relief sleeve pipe) is 145～225 millimeters.The far-end X-ray opaque of inner tube 6 or outer rim are equipped with the inner tube indicating 5 that can develop under the X ray, and platinum, platinum alloy, gold, Nitinol or rustless steel are adopted in inner tube indicating 5, are connected with inner tube 6 by welding.Inner tube 6 near-ends are connected with inner pipe joint 8, and inner tube 6 near-ends and inner pipe joint 8 junctions are equipped with inner tube strain relief sleeve pipe 7.
Inner tube 6 is inside and outside two-layer, and internal layer adopts politef, the outer nylon elastomer of nylon, block polyamide, in the polyurethane any one of adopting.
The polymeric material of different hardness is adopted in the outer segmentation of the skin of outer tube 2 and inner tube 11, make carry to reclaim conduit hardness vertically by near-end to gradually deliquescing of far-end classification, near-end has good propelling movement and twisting property, far-end is softer, pliability is good, can in the cardiovascular and cerebrovascular vessel of complexity, freely carry, avoid injured blood vessel.
Inner tube 6 places in the outer tube 2, and is relatively fixing by a Y-valve 9, and about 1-50 millimeter is exposed from outer tube 2 far-ends in inner tube 6 tips, forms tapering transition, realizes resistance that acquisition when conduit pushes in blood vessel is less and injured blood vessel wall not.
In summary, the microtubular assembly that provides among the present invention, comprise outer tube, the end of described outer tube is connected with outer tube joint, the middle part of described outer tube is the coaxial inner tube that is fitted with slidably, the end of described inner tube is connected with inner pipe joint, and the middle part of described inner tube has the interior tube chamber suitable with seal wire, and the front end of described inner tube runs through and stretch out in the front end of described outer tube.In the work process, cooperate successively between seal wire, described inner tube front end and described outer tube front end three and form the tapering transition structure, thereby Effective Raise the thrombosis handling capacity of described microtubular assembly, avoid or alleviated getting contingent thrombosis Fragmentation Phenomena in the bolt process, and it is controlled more flexibly that it gets the bolt process, get bolt efficient thereby greatly improved it, and make its operating process more simple and easy to do; Simultaneously, in general operation process, the described microtubular assembly with this kind tapering transition structure can fast and effeciently be delivered to target blood, and avoids this process to the blood vessel injury.
More than microtubular assembly provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (4)
1. microtubular assembly, it is characterized in that: comprise outer tube, the end of described outer tube is connected with outer tube joint, the middle part of described outer tube is the coaxial inner tube that is fitted with slidably, the end of described inner tube is connected with inner pipe joint, the middle part of described inner tube has the interior tube chamber suitable with seal wire, and the front end of described inner tube runs through and stretch out in the front end of described outer tube.
2. microtubular assembly as claimed in claim 1 is characterized in that: the front end of described inner tube stretches out in 1～50 millimeter of the front end of described outer tube.
3. microtubular assembly as claimed in claim 1, it is characterized in that: the far-end outer rim of described outer tube is equipped with the outer tube indicating, and proximal outer tube and outer tube joint junction are arranged with outer tube strain relief sleeve pipe; Described outer tube is three-decker, and the internal layer material is politef, and the intermediate layer is comprised of any one or two kinds in steel wire, the helical spring; Outer field material is the nylon elastomer of nylon, block polyamide, in the polyurethane any one.
4. microtubular assembly as claimed in claim 1, it is characterized in that: the far-end outer rim of described inner tube is equipped with the inner tube indicating, inner tube near-end and inner pipe joint junction are arranged with inner tube strain relief sleeve pipe, described inner tube is inside and outside two-layer, the material politef of internal layer, outer field material be the nylon elastomer of nylon, block polyamide, in the polyurethane any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310310753.8A CN103349810B (en) | 2013-07-23 | 2013-07-23 | A kind of microtubular assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310310753.8A CN103349810B (en) | 2013-07-23 | 2013-07-23 | A kind of microtubular assembly |
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| CN103349810A true CN103349810A (en) | 2013-10-16 |
| CN103349810B CN103349810B (en) | 2015-10-28 |
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| CN201310310753.8A Active CN103349810B (en) | 2013-07-23 | 2013-07-23 | A kind of microtubular assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773286A (en) * | 2017-10-21 | 2018-03-09 | 大连大学 | One kind intervention thrombus removes conduit |
| CN108030571A (en) * | 2017-12-19 | 2018-05-15 | 普霖医疗科技(广州)有限公司 | A kind of vena cava filter |
| CN113144393A (en) * | 2021-05-11 | 2021-07-23 | 深圳麦普奇医疗科技有限公司 | Adjustable common type trans-radial coronary angiography catheter |
Citations (5)
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| CN2673332Y (en) * | 2004-01-09 | 2005-01-26 | 微创医疗器械(上海)有限公司 | Y type blood vessel carriage transfer system |
| AU2007202936A1 (en) * | 2001-01-09 | 2007-07-19 | Microvention, Inc. | Embolectomy catheters and method for treatment |
| CN101612432A (en) * | 2009-07-06 | 2009-12-30 | 成正辉 | The conveying of intravascular distal protector and recovery conduit |
| CN102488577A (en) * | 2011-12-14 | 2012-06-13 | 湖南埃普特医疗器械有限公司 | Intravascular guiding wire positioning device and manufacturing method thereof |
| CN202365970U (en) * | 2011-12-14 | 2012-08-08 | 湖南瑞康通科技发展有限公司 | Quick blood flow reconstruction device |
-
2013
- 2013-07-23 CN CN201310310753.8A patent/CN103349810B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007202936A1 (en) * | 2001-01-09 | 2007-07-19 | Microvention, Inc. | Embolectomy catheters and method for treatment |
| CN2673332Y (en) * | 2004-01-09 | 2005-01-26 | 微创医疗器械(上海)有限公司 | Y type blood vessel carriage transfer system |
| CN101612432A (en) * | 2009-07-06 | 2009-12-30 | 成正辉 | The conveying of intravascular distal protector and recovery conduit |
| CN102488577A (en) * | 2011-12-14 | 2012-06-13 | 湖南埃普特医疗器械有限公司 | Intravascular guiding wire positioning device and manufacturing method thereof |
| CN202365970U (en) * | 2011-12-14 | 2012-08-08 | 湖南瑞康通科技发展有限公司 | Quick blood flow reconstruction device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107773286A (en) * | 2017-10-21 | 2018-03-09 | 大连大学 | One kind intervention thrombus removes conduit |
| CN108030571A (en) * | 2017-12-19 | 2018-05-15 | 普霖医疗科技(广州)有限公司 | A kind of vena cava filter |
| CN113144393A (en) * | 2021-05-11 | 2021-07-23 | 深圳麦普奇医疗科技有限公司 | Adjustable common type trans-radial coronary angiography catheter |
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| Publication number | Publication date |
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| CN103349810B (en) | 2015-10-28 |
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