CN210096005U - Thoracic aorta blood vessel support connected by keels - Google Patents
Thoracic aorta blood vessel support connected by keels Download PDFInfo
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- CN210096005U CN210096005U CN201920237715.7U CN201920237715U CN210096005U CN 210096005 U CN210096005 U CN 210096005U CN 201920237715 U CN201920237715 U CN 201920237715U CN 210096005 U CN210096005 U CN 210096005U
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- 210000002376 aorta thoracic Anatomy 0.000 title abstract description 11
- 239000012634 fragment Substances 0.000 claims abstract description 20
- 210000000115 thoracic cavity Anatomy 0.000 claims description 12
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 238000007906 compression Methods 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 230000003902 lesion Effects 0.000 description 9
- 230000002792 vascular Effects 0.000 description 9
- 210000004204 blood vessel Anatomy 0.000 description 8
- 230000006835 compression Effects 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 210000001105 femoral artery Anatomy 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 208000024172 Cardiovascular disease Diseases 0.000 description 2
- 208000002251 Dissecting Aneurysm Diseases 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 210000000709 aorta Anatomy 0.000 description 2
- 208000007474 aortic aneurysm Diseases 0.000 description 2
- 206010002895 aortic dissection Diseases 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010005908 Body temperature conditions Diseases 0.000 description 1
- 206010057469 Vascular stenosis Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000003143 atherosclerotic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000002651 drug therapy Methods 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 208000021331 vascular occlusion disease Diseases 0.000 description 1
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Abstract
The utility model discloses a thoracic aorta blood vessel support with fossil fragments connection, including fossil fragments, first ripples circle, second ripples circle and third ripples circle, first ripples circle, second ripples circle are established to the multiunit, and the third ripples circle is a set of, and on the axis direction of first ripples circle, second ripples circle and third ripples circle according to different interval fossil fragments, and first ripples circle, second ripples circle and third ripples circle extend to the both sides of fossil fragments. Because be equipped with first ripples circle, second ripples circle and third ripples circle on the axial of fossil fragments, and first ripples circle, second ripples circle and third ripples circle extend to the both sides of fossil fragments to improved the ascending bearing capacity of intravascular stent in the radial, the biggest principal strain in the compression process has obtained effective reduction, has greatly improved intravascular stent's compressibility, and the pliability of fossil fragments is not influenced and still remains well, keeps the pliability of fossil fragments unchangeable when strengthening the compressibility and reducing the biggest strain promptly.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, a thoracic aorta blood vessel support is related to, especially indicate a thoracic aorta blood vessel support with fossil fragments connection.
Background
In recent years, various acute and chronic vascular obstruction diseases caused by atherosclerotic heart disease seriously threaten the life health and safety of human beings. Cardiovascular disease has become the first killer of human life health according to american heart association statistical data analysis. Currently, there are three major categories of treatment for cardiovascular diseases caused by vascular stenosis, including drug therapy, surgery and interventional therapy. The vascular stent interventional therapy is a main mode for effectively treating vascular occlusion diseases which is developed most rapidly and widely applied clinically at present, and has the characteristics of minimal invasion, high efficiency and the like.
Among the performance criteria of a stent, the compressibility, flexibility and durability (service life) of a stent play a crucial role in clinical outcome both during and after surgery. Wherein the compressibility and compliance of the stent can affect whether the stent can be successfully delivered from the femoral artery to the lesion site during the surgical procedure. The maximum principal strain of a vascular stent affects whether the stent will exceed the allowable strain when compressed and cause failure. However, the conventional vascular stent has a weak load-bearing property of the maximum principal strain and a poor compression property. During the compression, the vascular stent is easily damaged due to the overlarge maximum strain. The flexibility of the vascular stent with high bearing performance and good compression performance is poor, so that the whole vascular stent is difficult to convey from the femoral artery to the lesion site.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a thoracic aorta blood vessel support which has high compression performance, good flexibility and long service life and is connected by a keel.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides an use thoracic aorta blood vessel support of fossil fragments connection, includes fossil fragments, first ripples circle, second ripples circle and third ripples circle, first ripples circle, second ripples circle are established to the multiunit, and the third ripples circle is a set of, and first ripples circle, second ripples circle and third ripples circle are located the axis direction of fossil fragments according to different intervals on, and the interval is the same between the same kind of ripples circle, arranges in proper order from the near-end to the distal end.
As a preferable scheme, the first wave ring, the second wave ring and the third wave ring all include sine unit waves, and the sine unit waves are sequentially connected in the circumferential direction to form an annular wave ring.
As a preferable scheme, the sine unit waves of the second wave ring comprise long-wave sine unit waves and short-wave sine unit waves connected with the long-wave sine unit waves; the wavelength of the long-wave sine unit wave is larger than that of the short-wave sine unit wave.
Preferably, the first wave coils are 3 groups, the second wave coils are 4 groups, and the third wave coils are 1 group.
Preferably, the first wave ring, the second wave ring and the third wave ring are welded to the keel by laser welding.
Preferably, the keel, the first wave ring, the second wave ring and the third wave ring are made of nickel-titanium alloy materials.
Preferably, the diameter of the first wave ring, the diameter of the second wave ring and the diameter of the third wave ring are 36mm, and the cross section diameter of the sine unit wave is 0.55 mm.
As a preferable scheme, the distance between two adjacent first wave circles is 7 mm; the distance between two adjacent second wave circles is 5.5 mm.
As a preferable scheme, the distance between the adjacent first wave ring and the second wave ring is 8.5 mm; the distance between the adjacent second wave circle and the third wave circle is 4 mm.
As a preferable scheme, the wavelength of the sine unit wave of the first wave ring is 15mm, and the peak radius is 1.2 mm; the wavelength of the long-wave sine unit wave of the second wave ring is 14mm, and the radius of the wave crest is 1.2 mm; the wavelength of the second wave ring short wave sine unit wave is 9mm, and the wave crest radius is 1.2 mm; the wavelength of the sine unit wave of the third wave ring is 12mm, and the radius of the wave crest is 1.2 mm.
In a preferred embodiment, the keel is cylindrical, and has a cross-sectional diameter of 0.55mm and a length of 150 mm.
As a preferable scheme, a connection point of the keel, the first wave ring and the second wave ring is located between any two sinusoidal unit waves, and a connection point of the keel and the second wave ring is located between the long-wave sinusoidal unit wave and the short-wave sinusoidal unit wave.
Implement the utility model discloses, following beneficial effect has:
1. the utility model discloses because the interval according to the difference is equipped with first ripples circle, second ripples circle and third ripples circle in the axial of fossil fragments, and the near-end is arranged in proper order to the distal end, thereby improved the intravascular stent at radial bearing capacity, the biggest owner in the compression process is met an emergency and has been obtained effective reduction, thereby the compressibility of intravascular stent has been improved, and because first ripples circle, second ripples circle and third ripples circle are in the axial that fossil fragments were located to the discontinuity, intravascular stent's pliability is not influenced and still remains well, keep intravascular stent's pliability unchangeable in the reinforcing compressibility promptly.
2. Due to the design of the keel structure, when the utility model is used, the first wave ring, the second wave ring and the third wave ring are compressed in vitro in advance to the required diameter, and the blood vessel support is sent to the appointed lesion position of the thoracic aorta by the conveyor; the first wave ring, the second wave ring and the third wave ring expand to the original diameter in the blood vessel under the action of self elasticity, so that the insufficient supply of the blood of the aorta caused by diseases such as aortic dissection, aortic aneurysm and the like can be effectively improved, the overall stability and flexibility of the stent are improved through the connection of the keels, the anchoring effect of the stent in the blood vessel is improved, and the displacement risk of the stent is reduced.
3. The utility model discloses because the special hookup location of fossil fragments and ripples circle establishes the position that second ripples circle and fossil fragments are connected between shortwave sine wave unit ripples and long wave sine wave unit to improved the compressibility of second ripples circle, the axial of cooperation fossil fragments is equipped with first ripples circle, second ripples circle and third ripples circle according to the interval of difference, solves the destroyed problem of intravascular stent appearing between the shortwave sine unit ripples and the long wave sine unit ripples of second ripples circle in compression process. So that the blood vessel stent can be smoothly compressed and conveyed to the lesion position from the femoral artery in the operation process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the thoracic aortic stent connected by a keel according to the present invention;
FIG. 2 is a schematic structural development view of the thoracic aorta vessel stent connected by keels of the present invention;
FIG. 3 is a schematic expanded view of the first wave ring structure;
FIG. 4 is a schematic expanded view of the second wave ring structure;
FIG. 5 is a schematic expanded view of the third wave ring;
figure 6 is a cross-sectional view of the keel;
FIG. 7 is a schematic view of a vascular stent for treatment of thoracic aortic vasculopathy;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1, 2 and 7, the present embodiment relates to a blood vessel stent, which includes a keel 1, a first wave ring 2, a second wave ring 3 and a third wave ring 4, wherein the first wave ring and the second wave ring are provided in multiple groups, the third wave ring is provided in one group, the first wave ring 2, the second wave ring 3 and the third wave ring 4 are provided in an axial direction of the keel 1 at different intervals, and the first wave ring 2, the second wave ring 3 and the third wave ring 4 are sequentially arranged from a proximal end to a distal end. The keel 1, the first wave ring 2, the second wave ring 3 and the third wave ring 4 are made of nickel-titanium alloy materials.
When in use, firstly, the blood vessel stent is compressed to a target diameter according to the position of the thoracic aorta blood vessel lesion and the type of the lesion and is conveyed to a specified lesion position through a conveyor; then after the stent reaches the designated lesion position, the conveyor is drawn out, the intravascular stent is made of nickel-titanium alloy and has a shape memory function, and the stent can expand to the original diameter under the body temperature condition. Specifically, a first wave ring 2, a second wave ring 3 and a third wave ring 4 are compressed in vitro to a required diameter in advance, and the vascular stent is conveyed to a designated lesion position of the thoracic aorta through a conveyor; the first wave ring 2, the second wave ring 3 and the third wave ring 4 are expanded to the original diameter in the blood vessel under the action of self elasticity, so that the insufficient blood supply of the aorta caused by diseases such as aortic dissection, aortic aneurysm and the like can be effectively improved, the overall stability of the stent is improved through the connection of the keel 1, the anchoring effect of the stent in the blood vessel is improved, and the displacement risk of the stent is reduced.
Because the first wave ring 2, the second wave ring 3 and the third wave ring 4 are arranged in the axial direction of the keel 1 and are sequentially arranged from the near end 110 to the far end 111, the radial bearing capacity of the intravascular stent is improved, the maximum main strain in the compression process is effectively reduced, the compressibility of the intravascular stent is improved, and the first wave ring 2, the second wave ring 3 and the third wave ring 4 are discontinuously arranged in the axial direction of the keel 1.
The sine unit waves 5 of the second wave ring 3 comprise long-wave sine unit waves 51 and short-wave sine unit waves 52; the wavelength of the long wave sine unit wave 51 is greater than the wavelength of the short wave sine unit wave 52. By the composition of long wave sine unit waves 51 and short wave sine unit waves 52.
The first wave circle is set to 3 groups, the second wave circle is set to 4 groups, and the third wave circle is set to 1 group. The first wave ring 2, the second wave ring 3 and the third wave ring 4 are welded on the keel 1 through laser welding. As shown in fig. 3 to 6, the first wave ring 2, the second wave ring 3 and the third wave ring 4 have a diameter of 36mm, and the diameter a of the cross section of the sine unit wave 5 is 0.55 mm.
The distance between two adjacent first wave rings 2 is 7 mm; the distance between two adjacent second wave rings 3 is 5.5 mm.
The distance between the adjacent first wave ring 2 and the second wave ring 3 is 8.5 mm; the distance between the adjacent second wave ring 3 and third wave ring 4 is 4 mm.
The wavelength b of the sine unit wave 5 of the first wave ring 2 is 15mm, and the radius of the wave crest is 1.2 mm; the wavelength c of the second wave ring long-wave sine unit wave 51 is 14mm, and the radius of the wave crest is 1.2 mm; the wavelength d of the second wave ring short-wave sine unit wave 52 is 9mm, and the wave crest radius is 1.2 mm; the wavelength e of the sine unit wave 5 of the third wave ring 4 is 12mm, and the wave crest radius is 1.2 mm. The fossil fragments are cylindric, and the cross section diameter is 0.55mm, and length is 150 mm.
The connecting point of the keel, the first wave ring and the second wave ring is positioned between any two sine unit waves, and the connecting point of the keel and the second wave ring is positioned between the long-wave sine unit waves and the short-wave sine unit waves.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A thoracic aortic stent connected by a keel, comprising: including fossil fragments, first ripples circle, second ripples circle and third ripples circle, first ripples circle, second ripples circle are established to the multiunit, and the third ripples circle is a set of, and first ripples circle, second ripples circle and third ripples circle are according to different intervals locate on the axis direction of fossil fragments, and the interval is the same between the same kind of ripples circle.
2. The thoracic aortic stent as set forth in claim 1, wherein: the first wave ring, the second wave ring and the third wave ring all comprise sine unit waves, and the sine unit waves are sequentially connected along the circumferential direction to form an annular wave ring.
3. A keel-connected thoracic aortic stent as claimed in claim 1 or 2, wherein: the sine unit waves of the second wave ring comprise long-wave sine unit waves and short-wave sine unit waves connected with the long-wave sine unit waves; the wavelength of the long-wave sine unit wave is larger than that of the short-wave sine unit wave.
4. A keel-connected thoracic aortic stent as claimed in claim 1 or 2, wherein: the first wave circle is set to 3 groups, the second wave circle is set to 4 groups, and the third wave circle is set to 1 group.
5. A keel-connected thoracic aortic stent as claimed in claim 1 or 2, wherein: the first wave ring, the second wave ring and the third wave ring are welded to the keel through laser.
6. The thoracic aortic stent as set forth in claim 1, wherein: the keel, the first wave ring, the second wave ring and the third wave ring are made of nickel-titanium alloy materials.
7. The thoracic aortic stent as set forth in claim 2, wherein: the diameters of the first wave ring, the second wave ring and the third wave ring are 36mm, and the cross section diameter of the sine unit wave is 0.55 mm.
8. A keel-connected thoracic aortic stent as claimed in claim 1 or 2, wherein: the distance between two adjacent first wave rings is 7 mm; the distance between two adjacent second wave circles is 5.5 mm.
9. A keel-connected thoracic aortic stent as claimed in claim 1 or 2, wherein: the distance between the adjacent first wave ring and the second wave ring is 8.5 mm; the distance between the adjacent second wave circle and the third wave circle is 4 mm.
10. The thoracic aortic stent graft as set forth in claim 2 or claim 7, wherein: the wavelength of the sine unit wave of the first wave ring is 15mm, and the radius of the wave crest is 1.2 mm; the wavelength of the long-wave sine unit wave of the second wave ring is 14mm, and the radius of the wave crest is 1.2 mm; the wavelength of the second wave ring short wave sine unit wave is 9mm, and the wave crest radius is 1.2 mm; the wavelength of the sine unit wave of the third wave ring is 12mm, and the radius of the wave crest is 1.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920237715.7U CN210096005U (en) | 2019-02-25 | 2019-02-25 | Thoracic aorta blood vessel support connected by keels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920237715.7U CN210096005U (en) | 2019-02-25 | 2019-02-25 | Thoracic aorta blood vessel support connected by keels |
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| Publication Number | Publication Date |
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| CN210096005U true CN210096005U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920237715.7U Expired - Fee Related CN210096005U (en) | 2019-02-25 | 2019-02-25 | Thoracic aorta blood vessel support connected by keels |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846585A (en) * | 2019-02-25 | 2019-06-07 | 广东工业大学 | A kind of aorta pectoralis intravascular stent connected with keel |
| WO2024125224A1 (en) * | 2021-12-31 | 2024-06-20 | 先健科技(深圳)有限公司 | Coated stent |
-
2019
- 2019-02-25 CN CN201920237715.7U patent/CN210096005U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846585A (en) * | 2019-02-25 | 2019-06-07 | 广东工业大学 | A kind of aorta pectoralis intravascular stent connected with keel |
| WO2024125224A1 (en) * | 2021-12-31 | 2024-06-20 | 先健科技(深圳)有限公司 | Coated stent |
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