CN102921090A - Development catheter applied to treatment of chronic total occlusion - Google Patents
Development catheter applied to treatment of chronic total occlusion Download PDFInfo
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- CN102921090A CN102921090A CN2012100446687A CN201210044668A CN102921090A CN 102921090 A CN102921090 A CN 102921090A CN 2012100446687 A CN2012100446687 A CN 2012100446687A CN 201210044668 A CN201210044668 A CN 201210044668A CN 102921090 A CN102921090 A CN 102921090A
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- sacculus
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Abstract
The invention provides a development catheter applied to treatment of chronic total occlusion. The development catheter comprises a catheter sheath, wherein a balloon is arranged on the top of the catheter sheath, the balloon is sleeved outside the top of the catheter sheath, the balloon is provided with a joint communicated high-pressure equipment outside the catheter, a metal braid layer covers the inner wall of the catheter sheath, and the tail of the catheter sheath is provided with a joint connected with a syringe. The development catheter can avoid development agent reflux caused by vascular occlusion, can also develop fine gaps in thrombus, and eliminates new injury of patients due to blood circulation prevention caused by transient occlusion of blood vessels.
Description
Technical field
The present invention relates to the medical device of a kind of blood vessel aspect, relate in particular to a kind of development conduit that is applied in the Chronic total occlusion treatment.
Background technology
In Percutaneous Coronary Intervention, Chronic total occlusion (CTO pathological changes) is a difficult problem of not yet capturing in the Percutaneous Coronary Intervention.Chronic total occlusion of coronary artery accounts for 1/3 of whole coronary angiographies, is less than 8% but accept percutaneous coronary intervention (pci) (PCI) person, only accounts for 15 ~ 30% of whole PCI cases
Pathology and iconography studies confirm that most of CTO pathological changes all exist forward direction or reverse side Zhi Xunhuan, make occluding vascular section far-end keep certain blood supply, even but side Zhi Xunhuan sets up fully, the blood that also only is equivalent to 90% narrow blood vessel on the function supplies, only can keep reluctantly myocardial viability under the tranquillization situation and the blood confession of hibernating myocardium, just and when myocardial oxygen consumption increases the patient produce myocardial ischemia symptom such as the performances such as angina pectoris, exercise tolerance reduction.
The obstruction meeting of lesion vessels can not be developed so that counter the flowing back to of contrast agent come, and seal wire can not arrive the far-end of blood vessel smoothly, and support can not be implanted smoothly.Therefore, the main difficulty of solution CTO pathological changes also is the development of occluding vascular.The reason that the pathological changes far-end can not develop mainly is the blocking action of thrombosis, even this is because there is the contrast agent of trace to enter pathological changes, also can not develop because contrast concentration is too low.Also having also, some case is can not develop because of the pathological changes total blockage.
Summary of the invention
The present invention is in order to solve the problem that exists in the existing operation, a kind of development conduit that is applied in the Chronic total occlusion treatment is provided, can avoid backflowing because of the contrast agent that vascular occlusion causes, so that vasodilation, thrombosis are expanded, expose the inner fine gap that exists, thereby realize that blood vessel develops.In sealing blood vessels, there is larger pressure, thrombosis is subjected to displacement, just can produce and be convenient to the new slit that blood vessel develops, inaccessible lesion vessels can not occur and cause the new damage of patient because of bloodstream blocking.
To achieve these goals, the invention provides a kind of development conduit that is applied in the Chronic total occlusion treatment, comprise catheter sheath, the top end of described catheter sheath is provided with a sacculus, described sacculus is enclosed within outside the catheter sheath top, sacculus is provided with the joint that is connected with conduit external high pressure equipment, covers a wire sheathing on the described catheter sheath inside pipe wall, and the afterbody of described catheter sheath is provided with the joint that is connected for syringe.
In the above-mentioned development conduit that provides, wherein said high pressure equipment is high pressure injector.
In the above-mentioned development conduit that provides, be provided with the connection chamber between wherein said sacculus and the joint.
In the above-mentioned development conduit that provides, the chamber wall of wherein said chamber is connected with the catheter sheath outer wall.
In the above-mentioned development conduit that provides, wherein said wire sheathing be arranged on the sacculus sheathing the catheter sheath inside pipe wall on.
In the above-mentioned development conduit that provides, the width of wherein said wire sheathing is 5 ~ 15mm.
In the above-mentioned development conduit that provides, the internal diameter of wherein said catheter sheath is 0.20 ~ 0.60mm, and external diameter is 0.40 ~ 0.80mm.
In the above-mentioned development conduit that provides, diameter is between 2 ~ 4mm during wherein said sacculus complete expansion.
Development conduit provided by the invention can be avoided backflowing because of the contrast agent that vascular occlusion causes, even for the inner tiny slit that exists of thrombosis, blood vessel also can develop, and can not occur causing the new damage of patient because of the of short duration inaccessible blood circulation that stops of blood vessel.
Description of drawings
Fig. 1 is the structure chart of development conduit provided by the invention.
Fig. 2 is the working state figure of development conduit provided by the invention.
The specific embodiment
The invention provides a kind of development conduit that is applied in the Chronic total occlusion treatment, comprise catheter sheath, the top end of described catheter sheath is provided with a sacculus, described sacculus is enclosed within outside the catheter sheath top, sacculus is provided with the joint that is connected with conduit external high pressure equipment, cover a wire sheathing on the described catheter sheath inside pipe wall, the afterbody of described catheter sheath is provided with the joint that is connected for syringe.
By the following examples development conduit provided by the invention is described further, in order to better understand the content of the invention, but the content of embodiment does not limit the protection domain of the invention.
As shown in Figure 1, the development conduit mainly comprises catheter sheath 1 and conduit.Generally between 0.20 ~ 0.60mm, external diameter is wanted choice refreshments than conduit now commonly used to the internal diameter of catheter sheath 1 between 0.40 ~ 0.80mm.Top end at catheter sheath 1 is provided with sacculus 2, and sacculus 2 is enclosed within outside catheter sheath 1 top.Diameter is between 2 ~ 4mm during sacculus 2 complete expansion, and sacculus 2 is about 5mm, can expand under the pressure of high pressure injector.Sacculus 2 communicates with chamber 4, and the other end of chamber 4 is provided with joint 6, and joint 6 is used for connecting high pressure injector.Chamber 4 can be made into integral type with catheter sheath 1, is convenient to operation and uses.Cover a wire sheathing 31,32 at catheter sheath 1 head tube inwall, wire sheathing 31,32 whole width are between 5 ~ 15mm.When sacculus 2 expanded, wire sheathing 31,32 can keep the catheter sheath 1 can be because unbalance stress does not shrivel easily, kept pressure in the catheter sheath 1 greater than the pressure in the sacculus 2, so that catheter sheath 1 inner chamber is unblocked all the time.The afterbody of catheter sheath 1 is provided with the joint 5 that is connected with high pressure injector, and the solution that contains contrast agent enters in the development conduit by this joint 5.
As shown in Figure 2, when development conduit intravasation 7 was interior, sacculus 2 can expand under the pressure of high pressure injector, and the sacculus 2 of amplification can stop contrast solution the phenomenon of backflowing not occur the blood vessel sealing.After sacculus 2 is with the blood vessel complete closed, enters the catheter sheath 1 from joint 5 at the effect contrast agent of high pressure injector, and flow in the blood vessel.Contrast agent is constantly filled space between sacculus 2 and the thrombosis 8 until be full of, pressure in this space constantly increases, blood vessel is subjected to tractive and expands, thrombosis is forced to expansion, and the slit that exists between the thrombosis exposes, the local pressure that raises, make the thrombosis displacement, produce new slit, contrast agent is filled full space, so that thrombosis can develop.
Above specific embodiments of the invention are described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of doing under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (8)
1. development conduit that is applied in the Chronic total occlusion treatment, it is characterized in that, comprise catheter sheath, the top end of described catheter sheath is provided with a sacculus, described sacculus is enclosed within outside the catheter sheath top, sacculus is provided with the joint that is connected with conduit external high pressure equipment, covers a wire sheathing on the described catheter sheath inside pipe wall, and the afterbody of described catheter sheath is provided with the joint that is connected for syringe.
2. development conduit according to claim 1 is characterized in that, described high pressure equipment is high pressure injector.
3. development conduit according to claim 1 is characterized in that, is provided with the connection chamber between described sacculus and the joint.
4. development conduit according to claim 1 is characterized in that, the chamber wall of described chamber is connected with the catheter sheath outer wall.
5. development conduit according to claim 1 is characterized in that, described wire sheathing be arranged on the sacculus sheathing the catheter sheath inside pipe wall on.
6. development conduit according to claim 1 is characterized in that, the width of described wire sheathing is 5 ~ 15mm.
7. development conduit according to claim 1, the internal diameter of described catheter sheath is 0.20 ~ 0.60mm, external diameter is 0.40 ~ 0.80mm.
8. development conduit according to claim 1, diameter is between 2 ~ 4mm during described sacculus complete expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100446687A CN102921090A (en) | 2012-02-27 | 2012-02-27 | Development catheter applied to treatment of chronic total occlusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100446687A CN102921090A (en) | 2012-02-27 | 2012-02-27 | Development catheter applied to treatment of chronic total occlusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102921090A true CN102921090A (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100446687A Pending CN102921090A (en) | 2012-02-27 | 2012-02-27 | Development catheter applied to treatment of chronic total occlusion |
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| CN (1) | CN102921090A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264642A (en) * | 2016-07-27 | 2017-01-04 | 株洲市瑞邦医疗器材制品有限责任公司 | Single use temperature control liquid gel occlusion catheter and method for blocking |
| WO2019128371A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳职业技术学院 | Tube product having x-ray developing function and manufacturing method therefor |
Citations (9)
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| US20010021840A1 (en) * | 1999-03-16 | 2001-09-13 | Mitta Suresh | Catheter with flexible and rigid reinforcements |
| US20040064089A1 (en) * | 2000-11-28 | 2004-04-01 | Kesten Randy J. | Intra-aortic renal drug delivery catheter |
| US20060129176A1 (en) * | 2004-12-10 | 2006-06-15 | Scimed Life Systems, Inc. | Catheter having an ultra soft tip and methods for making the same |
| CN200966830Y (en) * | 2006-11-18 | 2007-10-31 | 王兆华 | Backstreaming-proof type retrograde venography vessel of ureter |
| DE102007006434A1 (en) * | 2007-02-05 | 2008-08-14 | Krombach, Gabriele A., Dr. med. | Balloon catheter for use in stent, has fluid chamber connected with balloon unit in sections, where fluid communication connection is established between chamber and vessel during expansion of balloon unit |
| CN101505822A (en) * | 2006-08-21 | 2009-08-12 | 维利欧蒙德股份公司 | Device and method for reducing or removing stenoses |
| CN102139136A (en) * | 2011-03-11 | 2011-08-03 | 微创医疗器械(上海)有限公司 | Sacculus dilatation catheter |
| US20110224708A1 (en) * | 2008-11-19 | 2011-09-15 | Pierre Sarradon | Angioplasty Device |
| CN202724425U (en) * | 2012-02-27 | 2013-02-13 | 上海交通大学医学院附属第三人民医院 | Developing guide pipe |
-
2012
- 2012-02-27 CN CN2012100446687A patent/CN102921090A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010021840A1 (en) * | 1999-03-16 | 2001-09-13 | Mitta Suresh | Catheter with flexible and rigid reinforcements |
| US20040064089A1 (en) * | 2000-11-28 | 2004-04-01 | Kesten Randy J. | Intra-aortic renal drug delivery catheter |
| US20060129176A1 (en) * | 2004-12-10 | 2006-06-15 | Scimed Life Systems, Inc. | Catheter having an ultra soft tip and methods for making the same |
| CN101505822A (en) * | 2006-08-21 | 2009-08-12 | 维利欧蒙德股份公司 | Device and method for reducing or removing stenoses |
| CN200966830Y (en) * | 2006-11-18 | 2007-10-31 | 王兆华 | Backstreaming-proof type retrograde venography vessel of ureter |
| DE102007006434A1 (en) * | 2007-02-05 | 2008-08-14 | Krombach, Gabriele A., Dr. med. | Balloon catheter for use in stent, has fluid chamber connected with balloon unit in sections, where fluid communication connection is established between chamber and vessel during expansion of balloon unit |
| US20110224708A1 (en) * | 2008-11-19 | 2011-09-15 | Pierre Sarradon | Angioplasty Device |
| CN102139136A (en) * | 2011-03-11 | 2011-08-03 | 微创医疗器械(上海)有限公司 | Sacculus dilatation catheter |
| CN202724425U (en) * | 2012-02-27 | 2013-02-13 | 上海交通大学医学院附属第三人民医院 | Developing guide pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264642A (en) * | 2016-07-27 | 2017-01-04 | 株洲市瑞邦医疗器材制品有限责任公司 | Single use temperature control liquid gel occlusion catheter and method for blocking |
| CN106264642B (en) * | 2016-07-27 | 2019-06-28 | 湖南瑞邦医疗科技发展有限公司 | Disposable temperature control liquid gel occlusion catheter |
| WO2019128371A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳职业技术学院 | Tube product having x-ray developing function and manufacturing method therefor |
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Application publication date: 20130213 |