CN101933854A - Intracranial stent conveying conduit - Google Patents
Intracranial stent conveying conduit Download PDFInfo
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- CN101933854A CN101933854A CN2010102802244A CN201010280224A CN101933854A CN 101933854 A CN101933854 A CN 101933854A CN 2010102802244 A CN2010102802244 A CN 2010102802244A CN 201010280224 A CN201010280224 A CN 201010280224A CN 101933854 A CN101933854 A CN 101933854A
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- segment
- conveying
- conduit
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Abstract
The invention provides an intracranial stent conveying conduit which comprises a conveying segment and a free segment, wherein the conveying segment is made of a homogeneous plastic material, a framework formed by weaving stainless steel wires is arranged inside the pipe wall of the conveying segment, a hydrophilic film is respectively coated on the outer pipe wall and the inner pipe wall of the conveying segment, a valve joint is arranged at one end of the conveying segment, the other end is connected with the free segment, the outer wall of the conduit of the free segment is conical, the thick end of the free segment is connected with the conveying segment, a mark is arranged on the outer wall of the thin end of the free segment, the free segment is made of a plastic material, a platinum ring is wound inside the pipe wall of the free segment, and the hydrophilic film is coated on the inner wall of the free segment. The intracranial stent conveying conduit can be used for conveying a stent to the narrow part of a blood vessel through the conduit to be released and reduce the risk that the stent is difficult to be in place caused by overlarge resistance in the stent conveying process due to blood vessel distortion.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, especially a kind of intracranial stent delivery conduit.
Background technology
Entocranial artery (comprising internal carotid artery, vertebral artery) is narrow to be the basic cause of disease of cerebral infarction or transient ischemic attack, has sickness rate, disability rate, mortality rate three-hypers characteristics.In case morbidity will bring white elephant to family and society, and still there is not miracle cure at present both at home and abroad for the patient who does not in time go to a doctor.Have only those patients that can before narrow vascular occlusion, go to a doctor to enjoy effectively treatment---cerebrovascular interventional therapy.The support that is used for intracranial treatment stricture of artery at present has two kinds: promptly, and balloon expandable stent and self-expandable stent.The self-expandable stent softness easily by the tremulous pulse of distortion, arrive narrow positions, yet it costs an arm and a leg, postoperative restenosis rate height, is difficult to be accepted by medical personnel and patient, is not easy to popularize.Balloon expandable stent has that quality is hard, compliance is poor, is difficult to arrive shortcomings such as narrow positions by the tremulous pulse of distortion.Yet its adherent performance is good, and the postoperative restenosis rate is low, and especially low price enjoys numerous medical personnels and patient parent to look at.
The special-purpose balloon expandable stent of the intracranial that uses is bare bracket at present, directly under the micro-wire guiding support is pushed to the intracranial narrow positions during use.Because of support exposes, when its blood vessel through extremely twisting or fold, when perhaps running into harder speckle, " fish mouth phenomenon " to occur, promptly the far-end of support will open, and shovel is gone into inner membrance firmly, support can not arrive narrow positions, have to abandon operation, be that the doctor is in very how-do-you-do for this reason, allows the patient suffer economic loss simultaneously.Therefore, how allowing the sacculus expandable stent arrive narrow positions smoothly, is a difficult problem at present, does not still have the way of properly settling.
Summary of the invention
The purpose of this invention is to provide a kind of intracranial stent delivery conduit, can the narrow positions that support is delivered to blood vessel be discharged by conduit, reduce because of buckling of vessel, resistance is excessive in the support course of conveying, the risk that support is difficult to put in place.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: the intracranial stent delivery conduit, it is characterized in that: described conduit comprises the transportation section, free section, the material of transportation section is the homogenizing plastics, the tube wall inside of transportation section is provided with the skeleton that is formed by the stainless steel silk braiding, all scribble hydrophilic film on the outer tube wall of transportation section and the inner tubal wall, one end of transportation section is provided with valve interface, the other end is connected with free section, and the conduit outer wall of free section is coniform, and its butt end is connected with the transportation section, the outer wall of thin end is provided with mark's labelling, the material of free section is plastics, and the tube wall inside of free section is wound with the platinum circle, scribbles hydrophilic film on the inwall of free section.
Beneficial effect:
Use intracranial stent delivery conduit of the present invention, this conduit is soft, has certain elasticity simultaneously, all scribbles hydrophilic layer inside and outside the tube chamber, has the superslide performance.Its free section is coniform, when running into distortion, folding tremulous pulse or artery plaque, just can easily cross, because of it has the inner surface of superslide, when support by the time will very light, be unlikely to produce obstruction and feel, to such an extent as to difficulty of transportation.The tail end of transportation section has the interface with " Y " valve.Can be used as guiding catheter separately and use, also can in the 8F guiding catheter, use.The tube wall of transportation section conduit is made of the homogenizing plastics, is coated with on the outer wall with hydrophilic film, and tube wall inside is provided with the skeleton that is formed by the stainless steel silk braiding, can increase the intensity of conduit and turn round control, and make it to tolerate higher injection pressure; Inwall scribbles the hydrophilic film coating, can prevent thrombosis.The remote port place of free section conduit is provided with mark's labelling, is convenient to observe under perspective the position, exact position that distal end of catheter should be put.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Intracranial stent delivery conduit of the present invention as shown in Figure 1, described conduit comprises transportation section 1, free section 2, conduit total length 100cm, external diameter 2mm, internal diameter 1.5mm, transportation section 1 long 90cm wherein, free section 2 long 10cm, the material of transportation section 1 is the homogenizing plastics, and the tube wall inside of transportation section 1 is provided with the skeleton that is formed by the stainless steel silk braiding, all scribbles hydrophilic film on the outer tube wall of transportation section 1 and the inner tubal wall, one end of transportation section 1 is provided with valve interface 3, the other end is connected with free section 2, and the conduit outer wall of free section 2 is coniform, and its butt end is connected with transportation section 1, the outer wall of thin end is provided with mark's labelling 4, the material of free section 2 is plastics, and the tube wall inside of free section 2 is wound with the platinum circle, scribbles hydrophilic film on the inwall of free section 2.
Intracranial stent delivery conduit of the present invention, transportation section 90cm, the skeleton part is contained in tube wall inside, mainly plays a supportive role.Free section 10cm, tube wall inside is wound with the platinum circle, has with the buoyant effect of blood flow, and is very soft.When carrying out at first managing the near-end that free section is delivered to the artery stenosis section when intracranial stent is inserted, through this pipe support is delivered to narrow positions then, dilating sacculus then, the release support gets final product, easy to operate, can effectively save support and insert the spent time of process, the more important thing is the irradiation time that reduces ray, reduce the risk that the long-time irradiation of ray damages patient.
Claims (1)
1. intracranial stent delivery conduit, it is characterized in that: described conduit comprises the transportation section, free section, the material of transportation section is the homogenizing plastics, the tube wall inside of transportation section is provided with the skeleton that is formed by the stainless steel silk braiding, all scribble hydrophilic film on the outer tube wall of transportation section and the inner tubal wall, one end of transportation section is provided with valve interface, the other end is connected with free section, the conduit outer wall of free section is coniform, its butt end is connected with the transportation section, and the outer wall of thin end is provided with mark's labelling, and the material of free section is plastics, the tube wall inside of free section is wound with the platinum circle, scribbles hydrophilic film on the inwall of free section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102802244A CN101933854A (en) | 2010-09-08 | 2010-09-08 | Intracranial stent conveying conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102802244A CN101933854A (en) | 2010-09-08 | 2010-09-08 | Intracranial stent conveying conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101933854A true CN101933854A (en) | 2011-01-05 |
Family
ID=43387580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102802244A Pending CN101933854A (en) | 2010-09-08 | 2010-09-08 | Intracranial stent conveying conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101933854A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458867B1 (en) * | 1999-09-28 | 2002-10-01 | Scimed Life Systems, Inc. | Hydrophilic lubricant coatings for medical devices |
| JP2008000233A (en) * | 2006-06-20 | 2008-01-10 | Tokyo Medical & Dental Univ | Medical appliance and its manufacturing method |
| CN201015618Y (en) * | 2006-12-29 | 2008-02-06 | 天津市海河医院 | Bronchus one-way valve bracket placing device |
| CN101616639A (en) * | 2007-03-20 | 2009-12-30 | Minvasys公司 | The equipment and the method that are used for the support conveying of strap bolt plug protection |
| CN201782849U (en) * | 2010-09-08 | 2011-04-06 | 席刚明 | Intracranial support conveying conduit |
-
2010
- 2010-09-08 CN CN2010102802244A patent/CN101933854A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458867B1 (en) * | 1999-09-28 | 2002-10-01 | Scimed Life Systems, Inc. | Hydrophilic lubricant coatings for medical devices |
| JP2008000233A (en) * | 2006-06-20 | 2008-01-10 | Tokyo Medical & Dental Univ | Medical appliance and its manufacturing method |
| CN201015618Y (en) * | 2006-12-29 | 2008-02-06 | 天津市海河医院 | Bronchus one-way valve bracket placing device |
| CN101616639A (en) * | 2007-03-20 | 2009-12-30 | Minvasys公司 | The equipment and the method that are used for the support conveying of strap bolt plug protection |
| CN201782849U (en) * | 2010-09-08 | 2011-04-06 | 席刚明 | Intracranial support conveying conduit |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110105 |