CN101474106A - Adjustable single-branch artificial aortic arch implant - Google Patents
Adjustable single-branch artificial aortic arch implant Download PDFInfo
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- CN101474106A CN101474106A CNA200810204582XA CN200810204582A CN101474106A CN 101474106 A CN101474106 A CN 101474106A CN A200810204582X A CNA200810204582X A CN A200810204582XA CN 200810204582 A CN200810204582 A CN 200810204582A CN 101474106 A CN101474106 A CN 101474106A
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- aortic arch
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Abstract
The invention relates to an adjustable single-branch man-made aortic arch implant which comprises an aortic arch main stent that is formed by serially connecting nickel-titanium alloy wire materials with a Z-shaped ripple shape; a hollow stent made of a nickel-titanium alloy tube forms a branch blood vessel stent on the aortic arch which is coated by medical tectorial membrane materials; the ripple density of the remote end of the main stent is increased for strengthening the radial support force of the stent, and the Z-shaped ripple at the close end of the main stent is connected with the traditional decron-made artificial blood vessel. The implant of the invention can be squeezed to deform at will in the low temperature, and the host blood vessel can be implanted easily as the caliber can be adjusted at will. In the clinic, not only the aortic arch surgical operation can be simplified, but also the operation time and the surgery complication are reduced, thereby pains of a patient suffered from the aortic arch disease can be lightened more effectively, and the structure is simple as well as the operation is convenient.
Description
Technical field
The invention belongs to medical science artificial blood vessel graft field, especially a kind of adjustable single-branch artificial aortic arch implant.
Background technology
Along with the arrival of China's aging society, the sickness rate of chronic diseases such as hypertension, atherosclerosis presents tangible increase trend.One of consequence at a specified future date of these diseases is exactly to cause Secondary cases aorta and aortic arch portion pathological changes.According to statistics, 75% dissection of aorta patient suffers from hypertension, and 60% dissection of aorta belongs to Stanford A type interlayer (involving aortic arch portion); Atherosclerosis is the modal cause of disease of aortic arch portion true aneurysm.The sickness rate of China's dissection of aorta calculates according to this 0.5-2.95/10 10000 years, and the annual nearly 20000 dissection of aorta patients of China wherein involve the person of aortic arch portion and reach 12000 people.And postmortem is found, only has 15% dissection of aorta patient to be made a definite diagnosis before death, and nearly 85% patient fails accurately to be diagnosed, and therefore, the actual sickness rate of dissection of aorta is much higher possibly.At present, still do not have the morbidity statistics data of aortic arch true aneurysm, but this disease is mainly in old people and the family member that identical genetic background is arranged more than 60 years old.In addition, development along with China's process of industrialization, chest passivity wound is more and more sees, because aorta is only at aortic valve, arterial ligament and relatively fixing every three positions such as muscular artery ceasmas, then there is certain mobility at other positions, when chest is subjected to the passivity bump, produce inner membrance at above three positions easily and tear, form interlayer.Dissection of aorta is fallen ill rapidly, and the oncoming force is dangerous, the mortality rate height, and undressed Stanford A type dissection of aorta, 50% in morbidity death in back 48 hours.Therefore be the difficult point of cardiovascular surgical field.
Current, the standard method of aortic arch portion disease surgical intervention is blood vessel difference or " island " transplanting on operating substitution aortic arch+bow.The surgical technic that adopts remains the vascular anastomosis technology that Nobel physiology in 1912 and the medical science prize Alexis Carrel of winner founded in 1902.This kind method operating difficulty is big, the specification requirement height, and operating time is long, and ischemic time is long, and operative mortality and complication (especially cerebral complication) incidence rate can be in any more always.
Given this, from eighties of last century seventies, external part scholar once exempted to sew up the research of artificial blood vessel.But all, do not abandoned in succession after not entering clinical practice or entering clinical a period of time because the graft of being studied has shortcoming and the defective that himself is difficult to overcome.And these researchs all are confined to descending aorta, do not carry out the research of aortic arch graft.The development of less invasive techniques and endoluminal vascular treatment technology in recent years is rapid, and angiopathy can obtain medical treatment by the intracavity technology greatly.As the disease that descending aorta, ventral aorta, ilium blood vessel etc. are located, can obtain medical treatment by endovascular graft.But because aortic arch, makes himself disease in the uniqueness of aspects such as anatomy, biomechanics, hemodynamics, instantly also can't be by the treatment of intracavity technology.State Patent Office's application number is that 200710037870.6 patent of invention discloses a kind of adjustable artificial aortic arch transplant, but 3 aortic arch top set intravascular stents make this invention complex structure, and big in when operation and human body in conjunction with difficulty, sew up difficulty.The present invention proposes a kind of novel adjustable artificial aortic arch transplant of exempting to sew up of meter, in the hope of solving the problem that current aortic arch operation exists.
Summary of the invention
The present invention will provide a kind of adjustable single-branch artificial aortic arch implant, this graft can realize utilizing the characteristic crimp arbitrarily at low temperatures of formative memory alloy, arbitrarily regulate caliber size and easily implant the purpose of host blood vessel in the Rhizoma Atractylodis Macrocephalae, and simple in structure, easy to operate.
For achieving the above object, the technical solution used in the present invention is:
A kind of adjustable single-branch artificial aortic arch implant comprises that constituting aortic arch main body rack, nickel-titanium alloy hollow out by the nitinol alloy wire material with the series connection of Z-shaped bellows-shaped props up and be configured to aortic arch top set intravascular stent and be coated on overlay film layer inside and outside the support, and be characterized in: aortic arch top set intravascular stent is single.
Graft caliber size scalable of the present invention is easily implanted host blood vessel in the Rhizoma Atractylodis Macrocephalae; And far-end is not sewed up.
Main body rack far-end ripple density of the present invention increases, and is used to strengthen the radial support power of support; The Z-shaped ripple of main body rack near-end is connected traditional dacron-made artificial blood vessel; Aortic arch top set intravascular stent is adopted to be propped up by the nickel-titanium alloy hollow out and is configured to, and is used to strengthen adherent property; The material of overlay film layer is a kind of of politef ePTFE or polyester or derivatives thereof.
The present invention not only can be at low temperatures crimp arbitrarily, regulate caliber size arbitrarily and easily implant host blood vessel in the Rhizoma Atractylodis Macrocephalae.Clinical use can be simplified aortic arch portion surgical operation, reduce operating time, reduce postoperative complication (especially cerebral complication), thereby more effectively alleviate the pathological changes patient's of aortic arch portion misery, and more preceding invention reduced the number of aortic arch top set intravascular stent, so simple in structure, easy to operate.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the sketch map that the present invention inserts the aortic arch place.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As Fig. 1, shown in 2, a kind ofly exempt to sew up adjustable single-branch artificial aortic arch implant, comprise that the nitinol alloy wire material constitutes aortic arch main body rack 3 with the series connection of Z-shaped bellows-shaped, the nickel-titanium alloy hollow out is propped up and is configured to aortic arch top set intravascular stent 4 and is coated on overlay film layer 5 on the support.Wherein, the Z-shaped ripple density of main body rack 3 far-ends 2 increases gradually, to strengthen the radial support power of support 3; The Z-shaped ripple negligible amounts of main body rack 3 near-ends 1 is so that be connected traditional dacron-made artificial blood vessel 6.
The present invention can be at low temperatures crimp arbitrarily, regulate caliber size arbitrarily and easily implant host blood vessel in the Rhizoma Atractylodis Macrocephalae.Clinical use can be simplified aortic arch portion surgical operation, reduces operating time, and reduce postoperative complication (especially cerebral complication), thereby more effectively alleviate the pathological changes patient's of aortic arch portion misery, and also simple in structure, easy to operate.
Claims (6)
1. adjustable single-branch artificial aortic arch implant, comprise by the nitinol alloy wire material with the series connection of Z-shaped bellows-shaped constitute aortic arch main body rack (3), the nickel-titanium alloy hollow out is propped up and is configured to aortic arch top set intravascular stent (4) and is coated on the inside and outside overlay film layer (5) of support, it is characterized in that: described aortic arch top set's intravascular stent (4) is single.
2. adjustable single-branch artificial aortic arch implant according to claim 1 is characterized in that: this graft caliber size scalable, easily implant host blood vessel in the Rhizoma Atractylodis Macrocephalae, and far-end is not sewed up.
3. adjustable single-branch artificial aortic arch implant according to claim 1 is characterized in that: described main body rack (3) far-end (2) ripple density increases, and is used to strengthen the radial support power of support; The Z-shaped ripple of described main body rack (3) near-end (1) is connected traditional dacron-made artificial blood vessel.
4. adjustable single-branch artificial aortic arch implant according to claim 1 is characterized in that: described aortic arch top set's intravascular stent (4) is propped up by the nickel-titanium alloy hollow out and is configured to, and is used to strengthen adherent property.
5. adjustable single-branch artificial aortic arch implant according to claim 1 is characterized in that: the material of described overlay film layer (5) is a kind of of ePTFE or polyester or derivatives thereof.
6. adjustable single-branch artificial aortic arch implant according to claim 1 is characterized in that: can regulate caliber size arbitrarily and easily implant host blood vessel in the Rhizoma Atractylodis Macrocephalae; Far-end need not sewed up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810204582XA CN101474106A (en) | 2008-12-15 | 2008-12-15 | Adjustable single-branch artificial aortic arch implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810204582XA CN101474106A (en) | 2008-12-15 | 2008-12-15 | Adjustable single-branch artificial aortic arch implant |
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| Publication Number | Publication Date |
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| CN101474106A true CN101474106A (en) | 2009-07-08 |
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| CNA200810204582XA Pending CN101474106A (en) | 2008-12-15 | 2008-12-15 | Adjustable single-branch artificial aortic arch implant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103720529A (en) * | 2013-12-30 | 2014-04-16 | 先健科技(深圳)有限公司 | Arcus aortae intraoperative stent and method for manufacturing stent |
| CN104905892A (en) * | 2015-06-16 | 2015-09-16 | 中国人民解放军第四军医大学 | Integrated multiple-branch interventional aorta arch covered stent |
| CN106308975A (en) * | 2016-10-25 | 2017-01-11 | 哈尔滨医科大学 | Blood vessel prosthesis stent for Stanford type A aortic dissection |
| CN107303210A (en) * | 2016-04-21 | 2017-10-31 | 丁盛 | Three branch stents in a kind of highly conforming properties sustainer art |
-
2008
- 2008-12-15 CN CNA200810204582XA patent/CN101474106A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103720529A (en) * | 2013-12-30 | 2014-04-16 | 先健科技(深圳)有限公司 | Arcus aortae intraoperative stent and method for manufacturing stent |
| CN103720529B (en) * | 2013-12-30 | 2017-02-08 | 先健科技(深圳)有限公司 | Arcus aortae intraoperative stent and method for manufacturing stent |
| CN104905892A (en) * | 2015-06-16 | 2015-09-16 | 中国人民解放军第四军医大学 | Integrated multiple-branch interventional aorta arch covered stent |
| CN104905892B (en) * | 2015-06-16 | 2017-06-13 | 中国人民解放军第四军医大学 | Integrated multiple branch intervenes arch of aorta overlay film frame |
| CN107303210A (en) * | 2016-04-21 | 2017-10-31 | 丁盛 | Three branch stents in a kind of highly conforming properties sustainer art |
| CN106308975A (en) * | 2016-10-25 | 2017-01-11 | 哈尔滨医科大学 | Blood vessel prosthesis stent for Stanford type A aortic dissection |
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Open date: 20090708 |