CN109846585A - A kind of aorta pectoralis intravascular stent connected with keel - Google Patents
A kind of aorta pectoralis intravascular stent connected with keel Download PDFInfo
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- CN109846585A CN109846585A CN201910138109.4A CN201910138109A CN109846585A CN 109846585 A CN109846585 A CN 109846585A CN 201910138109 A CN201910138109 A CN 201910138109A CN 109846585 A CN109846585 A CN 109846585A
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- wave
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- wave circle
- keel
- intravascular stent
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Abstract
The invention discloses a kind of aorta pectoralis intravascular stents connected with keel, including keel, first wave circle, the second wave circle and third wave circle, the first wave circle, the second wave circle are set as multiple groups, third wave circle is one group, on the axis direction of first wave circle, the second wave circle and third wave circle according to different spacing keel, and first wave circle, the second wave circle and third wave circle extend to the two sides of keel.Since the axial direction of keel is equipped with first wave circle, the second wave circle and third wave circle, and first wave circle, the second wave circle and third wave circle extend to the two sides of keel, to improve intravascular stent bearing capacity in the radial direction, maximum principal strain in compression process is effectively reduced, greatly improve the compressibility of intravascular stent, and the flexibility of keel is unaffected and still keeps good, i.e., keeps the flexibility of keel constant while enhancing compressibility and reducing maximum strain.
Description
Technical field
The invention belongs to the field of medical instrument technology, are related to a kind of aorta pectoralis intravascular stent, refer in particular to a kind of with dragon
The aorta pectoralis intravascular stent of bone connection.
Background technique
In recent years, all kinds of acute and chronic angiemphraxis diseases as caused by atherosclerotic heart disease, seriously jeopardize
Human life and health and safety.According to American Heart Association's analysis of statistical data, it is strong that cardiovascular disease has become human life
The number one killer of health.There are drug therapy, surgical operation and Jie for the treatment of the cardiovascular disease as caused by hemadostewnosis at present
Enter to treat three categories.The treatment of intravascular stent interventional procedure is that one kind that is with the fastest developing speed at present and obtaining clinical extensive utilization is effective
Angiemphraxis disease major way is treated, is had the characteristics that minimally invasive, efficient.
In the performance indicator of bracket, compressibility energy, flexibility and the durability (service life) of bracket were being performed the operation
Clinical effectiveness is all played a crucial role after journey and operation.Wherein the compressibility of bracket can will affect with submissive performance
It can be in the course of surgery from femoral artery smooth delivery of power to lesion locations to bracket.The maximum principal strain of intravascular stent influences whether
Whether bracket can be more than strain tolerant and cause to destroy in compression.But the maximum principal strain of existing intravascular stent is held
Load performance is weak, and compression performance is poor.During compressed, it is easy to cause intravascular stent to be destroyed because maximum strain is excessive.
And for load-carrying properties height, the intravascular stent of good compression property, flexibility is again poor, causes entire intravascular stent to be difficult to dynamic from stock
Arteries and veins is transported to lesion locations.
Summary of the invention
It is an object of the invention in view of the above-mentioned problems, providing that a kind of compression performance is high, flexibility is good and long service life
With keel connect aorta pectoralis intravascular stent.
Following technical scheme can be used to reach in the purpose of the present invention:
A kind of aorta pectoralis intravascular stent connected with keel, including keel, first wave circle, the second wave circle and third wave
Circle, the first wave circle, the second wave circle are set as multiple groups, and third wave circle is one group, and first wave circle, the second wave circle and third wave circle are pressed
It is set to according to different spacing on the axis direction of keel, spacing is identical between same wave circle, proximally to being distally arranged successively.
As a preferred solution, the first wave circle, the second wave circle and third wave circle include sinusoidal unit wave, institute
It states sinusoidal unit wave to be circumferentially sequentially connected, forms circumferential wave circle.
As a preferred solution, the sinusoidal unit wave of the second wave circle includes long wave sine unit wave and and long wave
The shortwave sine unit wave of sinusoidal unit wave connection；The wavelength of the long wave sine unit wave is greater than the wave of shortwave sine unit wave
It is long.
As a preferred solution, the first wave circle is set as 3 groups, and the second wave circle is set as 4 groups, and third wave circle is set as 1
Group.
As a preferred solution, the first wave circle, the second wave circle and third wave circle are by being laser-welded to keel
On.
As a preferred solution, the keel, first wave circle, the second wave circle and third wave circle are Nitinol material
Material.
As a preferred solution, the diameter of the first wave circle, the second wave circle and third wave circle is 36mm, sinusoidal single
The cross-sectional diameter of elementary wave is 0.55mm.
As a preferred solution, the distance between two adjacent described first wave circles are 7mm；Two adjacent described
The distance between two wave circles are 5.5mm.
As a preferred solution, the distance between adjacent first wave circle and the second wave circle are 8.5mm；Adjacent
The distance between two wave circles and third wave circle are 4mm.
As a preferred solution, the wavelength of the sinusoidal unit wave of the first wave circle is 15mm, and crest radius is
1.2mm；The wavelength of the second wave circle long wave sine unit wave is 14mm, crest radius 1.2mm；The second wave circle shortwave
The wavelength of sinusoidal unit wave is 9mm, crest radius 1.2mm；The wavelength of the sinusoidal unit wave of the third wave circle is 12mm, wave
Peak radius is 1.2mm.
As a preferred solution, keel are cylindric, cross-sectional diameter 0.55mm, length 150mm.
As a preferred solution, the tie point of the keel and first wave circle, the second wave circle is being located at any two just
Between string unit wave, the tie point of keel and the second wave circle is located between long wave sine unit wave and shortwave sine unit wave.
The invention has the following beneficial effects:
1, the present invention is due to being equipped with first wave circle, the second wave circle and third wave according to different spacing in the axial direction of keel
Circle, and proximate is arranged successively, so that it is main to improve maximum of the intravascular stent in radial bearing capacity, compression process
Strain is effectively reduced, to improve the compressibility of intravascular stent, and due to first wave circle, the second wave circle and the
Three wave circles are that discontinuity is set in the axial direction of keel, and the flexibility of intravascular stent is unaffected and still keeps good, that is, are being increased
Keep the flexibility of intravascular stent constant while strong compressibility.
2, the present invention due to keel structure design, when in use, in advance in vitro compress first wave circle, the second wave circle and
Intravascular stent is sent to aorta pectoralis by conveyer and specifies lesion locations by third wave circle to required diameter；First wave circle, second
Wave circle and third wave circle are expanded to green diameter under the action of natural resiliency in the blood vessels, can be effectively improved because of dissection of aorta
It is insufficient with aorta blood caused by the diseases such as aortic aneurysm, the stability of bracket entirety is improved by the connection of keel
And flexibility, while the anchorage effect of bracket in the blood vessels is improved, it reduces it and shifts risk.
3, the position that the second wave circle is connect with keel is set as short due to the special link position of keel and wave circle by the present invention
Between wave sine wave unit wave and long wave sine wave unit, to improve the compressibility of the second wave circle, cooperate the axis of keel
It is equipped with first wave circle, the second wave circle and third wave circle according to different spacing upwards, solves the second wave circle in compression process
There is the problem of intravascular stent is destroyed between shortwave sine unit wave and long wave sine unit wave.Enable intravascular stent smoothly quilt
It compresses and is transported to lesion locations from femoral artery in the course of surgery.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the aorta pectoralis intravascular stent that the present invention is connected with keel；
Fig. 2 is the structure expanded schematic diagram for the aorta pectoralis intravascular stent that the present invention is connected with keel；
Fig. 3 is the structure expanded schematic diagram of first wave circle；
Fig. 4 is the structure expanded schematic diagram of the second wave circle；
Fig. 5 is the structure expanded schematic diagram of third wave circle；
Fig. 6 is keel schematic cross-section；
Fig. 7 is intravascular stent for aorta pectoralis vascular lesion treatment schematic diagram；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Referring to Fig.1, Fig. 2 and Fig. 7, the present embodiment are related to intravascular stent, including keel 1, first wave circle 2,3 and of the second wave circle
Third wave circle 4, the first wave circle, the second wave circle are set as multiple groups, and third wave circle is one group, first wave circle 2,3 and of the second wave circle
Third wave circle 4 is set in the axial direction of keel 1 according to different spacing, and first wave circle 2, the second wave circle 3 and third wave circle 4 are proximally
To being distally arranged successively.The keel 1, first wave circle 2, the second wave circle 3 and third wave circle 4 are nickel-titanium alloy material.
When in use, first according to aorta pectoralis vascular lesion position and lesion type, intravascular stent is compressed to mesh
Mark diameter is simultaneously transported to specified lesion locations by conveyer；Then after bracket reaches specified lesion locations, conveyer is extracted out,
Vascular stent material is Nitinol, has shape memory function, under body temperature, bracket itself can be expanded to original diameter.
Specifically, compress first wave circle 2, the second wave circle 3 and third wave circle 4 to required diameter in vitro in advance, by conveyer by blood
Pipe holder is sent to aorta pectoralis and specifies lesion locations；The effect of first wave circle 2, the second wave circle 3 and third wave circle 4 in natural resiliency
Under be expanded to green diameter in the blood vessels, aortic blood caused by being effectively improved because of diseases such as dissection of aorta and aortic aneurysms
Liquid is insufficient, improves the stability of bracket entirety by the connection of keel 1, while improving the anchoring of bracket in the blood vessels
Effect reduces it and shifts risk.
Due to keel 1 axial direction be equipped with first wave circle 2, the second wave circle 3 and third wave circle 4, and proximally 110 to distal end
111 are arranged successively, to improve the bearing capacity of intravascular stent radially, the maximum principal strain in compression process is had
Effect reduces, to improve the compressibility of intravascular stent, and since first wave circle 2, the second wave circle 3 and third wave circle 4 are
Discontinuity is set in the axial direction of keel 1.
The sinusoidal unit wave 5 of the second wave circle 3 includes long wave sine unit wave 51 and shortwave sine unit wave 52；It is described
The wavelength of long wave sine unit wave 51 is greater than the wavelength of shortwave sine unit wave 52.Just by long wave sine unit wave 51 and shortwave
The composition of string unit wave 52.
The first wave circle is set as 3 groups, and the second wave circle is set as 4 groups, and third wave circle is set as 1 group.The first wave circle 2,
Two wave circles 3 and third wave circle 4 are by being laser-welded on keel 1.As shown in Figures 3 to 6, the first wave circle 2, the second wave circle
3 and the diameter of third wave circle 4 be 36mm, the diameter a of sinusoidal 5 cross section of unit wave is 0.55mm.
The distance between two adjacent described first wave circles 2 are 7mm；The distance between two adjacent described second wave circles 3
For 5.5mm.
The distance between adjacent first wave circle 2 and the second wave circle 3 are 8.5mm；Adjacent the second wave circle 3 and third wave circle
The distance between 4 be 4mm.
The wavelength b of the sinusoidal unit wave 5 of the first wave circle 2 is 15mm, crest radius 1.2mm；The second wave circle
The wavelength c of long wave sine unit wave 51 is 14mm, crest radius 1.2mm；The second wave circle shortwave sine unit wave 52
Wavelength d is 9mm, crest radius 1.2mm；The wavelength e of the sinusoidal unit wave 5 of the third wave circle 4 is 12mm, and crest radius is
1.2mm.Keel are cylindric, cross-sectional diameter 0.55mm, length 150mm.
The tie point of the keel and first wave circle, the second wave circle is located between any two sine unit wave, keel with
The tie point of second wave circle is located between long wave sine unit wave and shortwave sine unit wave.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (10)
1. a kind of aorta pectoralis intravascular stent connected with keel, it is characterised in that: including keel, first wave circle, the second wave circle
With third wave circle, the first wave circle, the second wave circle are set as multiple groups, and third wave circle is one group, first wave circle, the second wave circle and the
Three wave circles are set on the axis direction of keel according to different spacing, and spacing is identical between same wave circle.
2. a kind of aorta pectoralis intravascular stent connected with keel according to claim 1, it is characterised in that: described first
Wave circle, the second wave circle and third wave circle include sinusoidal unit wave, and the sine unit wave is circumferentially sequentially connected, and form annular
Wave circle.
3. a kind of aorta pectoralis intravascular stent connected with keel according to claim 1 or 2, it is characterised in that: described
The sinusoidal unit wave of second wave circle includes long wave sine unit wave and the shortwave sine unit wave connecting with long wave sine unit wave；
The wavelength of the long wave sine unit wave is greater than the wavelength of shortwave sine unit wave.
4. a kind of aorta pectoralis intravascular stent connected with keel according to claim 1 or 2, it is characterised in that: described
First wave circle is set as 3 groups, and the second wave circle is set as 4 groups, and third wave circle is set as 1 group.
5. a kind of aorta pectoralis intravascular stent connected with keel according to claim 1 or 2, it is characterised in that: described
First wave circle, the second wave circle and third wave circle are by being laser-welded on keel.
6. a kind of aorta pectoralis intravascular stent connected with keel according to claim 1, it is characterised in that: the dragon
Bone, first wave circle, the second wave circle and third wave circle are nickel-titanium alloy material.
7. a kind of aorta pectoralis intravascular stent connected with keel according to claim 2, it is characterised in that: described first
The diameter of wave circle, the second wave circle and third wave circle is 36mm, and the cross-sectional diameter of sinusoidal unit wave is 0.55mm.
8. a kind of aorta pectoralis intravascular stent connected with keel according to claim 1 or 2, it is characterised in that: two
The distance between adjacent described first wave circle is 7mm；The distance between two adjacent described second wave circles are 5.5mm.
9. a kind of aorta pectoralis intravascular stent connected with keel according to claim 1 or 2, it is characterised in that: adjacent
First wave circle and the distance between the second wave circle be 8.5mm；The distance between adjacent second wave circle and third wave circle are
4mm。
10. a kind of aorta pectoralis intravascular stent connected with keel according to claim 2 or 7, it is characterised in that: described
The wavelength of the sinusoidal unit wave of first wave circle is 15mm, crest radius 1.2mm；The second wave circle long wave sine unit wave
Wavelength is 14mm, crest radius 1.2mm；The wavelength of the second wave circle shortwave sine unit wave is 9mm, and crest radius is
1.2mm；The wavelength of the sinusoidal unit wave of the third wave circle is 12mm, crest radius 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138109.4A CN109846585A (en) | 2019-02-25 | 2019-02-25 | A kind of aorta pectoralis intravascular stent connected with keel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138109.4A CN109846585A (en) | 2019-02-25 | 2019-02-25 | A kind of aorta pectoralis intravascular stent connected with keel |
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| CN109846585A true CN109846585A (en) | 2019-06-07 |
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| CN201910138109.4A Pending CN109846585A (en) | 2019-02-25 | 2019-02-25 | A kind of aorta pectoralis intravascular stent connected with keel |
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Cited By (3)
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| CN110393607A (en) * | 2019-07-17 | 2019-11-01 | 深圳市先健畅通医疗有限公司 | Overlay film frame |
| CN112022430A (en) * | 2020-08-18 | 2020-12-04 | 广东工业大学 | Novel covered stent for aortic arch |
| WO2021120929A1 (en) * | 2019-12-19 | 2021-06-24 | 深圳市创心医疗科技有限公司 | Stent system and vascular stent |
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| CN110393607A (en) * | 2019-07-17 | 2019-11-01 | 深圳市先健畅通医疗有限公司 | Overlay film frame |
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| CN112022430A (en) * | 2020-08-18 | 2020-12-04 | 广东工业大学 | Novel covered stent for aortic arch |
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