CN204600807U - Magnesium alloy blood vessel rack - Google Patents
Magnesium alloy blood vessel rack Download PDFInfo
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- CN204600807U CN204600807U CN201520261612.6U CN201520261612U CN204600807U CN 204600807 U CN204600807 U CN 204600807U CN 201520261612 U CN201520261612 U CN 201520261612U CN 204600807 U CN204600807 U CN 204600807U
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- blood vessel
- magnesium alloy
- vessel rack
- alloy blood
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Abstract
The utility model discloses a kind of magnesium alloy blood vessel rack, described magnesium alloy blood vessel rack is netty circular tube structure, comprise multiple agent structure bar distributed vertically, adjacent two described agent structure bars are connected by multiple connecting rod, and each described connecting rod is arcuate structure.This magnesium alloy blood vessel rack has stronger radial support power, preferably axial compliance and good anti-fatigue performance, uniform expansion can be realized in actual applications, and strut rear axis and reduce the distance less, be beneficial to the location in operation, there is good clinical efficacy and application value.
Description
Technical field
This utility model relates to medical device field, particularly relates to a kind of magnesium alloy blood vessel rack.
Background technology
In recent years, along with the development of modern medical service technology and being gradually improved of armarium, Interventional stent in the treatment has become a kind of Main Means getting involved cardiovascular therapy.Blood vessel interventional technique is under the guiding of medical imaging device, utilizes the apparatus intravascular approach such as puncture needle, seal wire, conduit to carry out the operating technology of Clinics and Practices, has become one of best approach for the treatment of various dangerous human health disease.
At present, the stent types applied clinically is a lot, but the material of support mostly is the metals such as rustless steel, Ni-Ti alloy or cobalt-chromium alloy, and these metal racks are all biologically inerts, easily cause neointimal hyperplasia, inflammatory reaction etc.For solving the limitation of conventional metals support, adopt degradable blood vessel bracket can solve the problems referred to above of conventional metals support existence well.Magnesium alloy is because having suitable mechanical property, histocompatibility, lowly causing the advantage such as bolt, low inflammatory and become the preferred material of biodegradable stent.
Magnesium alloy blood vessel rack in conventional art has good biocompatibility, but it still exists shortcoming in compliance and expansion uniformity etc., thus larger to injury of human in implantation process, brings negative impact can to clinical final result.
Utility model content
For the deficiency that prior art exists, this utility model provides a kind of expansion uniformity and axial compliance preferably magnesium alloy blood vessel rack.
For achieving the above object, this utility model adopts following technical scheme:
A kind of magnesium alloy blood vessel rack, described magnesium alloy blood vessel rack is netty circular tube structure, described magnesium alloy blood vessel rack comprises multiple agent structure bar distributed vertically, and adjacent two described agent structure bars are connected by multiple connecting rod, and each described connecting rod is arcuate structure.
Wherein in an embodiment, the contour line of each described agent structure bar is wave, in adjacent two described agent structure bars, the trough of the crest of agent structure bar described in one of them or trough and agent structure bar described in another or crest one_to_one corresponding.
Wherein in an embodiment, one end of each described connecting rod is connected with the crest of agent structure bar described in one of them or trough, and corresponding trough or the crest of the other end and agent structure bar described in adjacent another connect.
Wherein in an embodiment, multiple described connecting rod is circumferentially spaced apart, is dislocatedly distributed vertically.
Wherein in an embodiment, described wave is sine curve or cosine curve.
Wherein in an embodiment, the joint length of described sine curve or described cosine curve is 800 μm ~ 1200 μm.
Wherein in an embodiment, in circumferential direction, the bending direction of adjacent two described connecting rods is identical; In the axial direction, the bending direction of adjacent two described connecting rods is contrary.
Wherein in an embodiment, each described connecting rod is arc-shaped structure.
Wherein in an embodiment, the central angle corresponding to each described connecting rod is 60 ° ~ 120 °.
Wherein in an embodiment, the arc length of each described connecting rod is 300 μm ~ 600 μm.
This utility model has following beneficial effect:
Magnesium alloy blood vessel rack of the present utility model comprises multiple agent structure bar distributed vertically, connected by the connecting rod of arc between two adjacent agent structure bars, compared with the mode connected with traditional straight line connecting rod, the connecting rod of arc of the present utility model has good deformability, thus improve the axial compliance of magnesium alloy blood vessel rack, radial support power and fatigue resistance, the uniform expansion of magnesium alloy blood vessel rack can be realized; Meanwhile, this magnesium alloy blood vessel rack axial shortening after strutting is less, is beneficial to the location in operation, significantly can improve surgical effect, has good clinical efficacy; Further, the structure of this magnesium alloy blood vessel rack is simple, easily processes, effectively reduces production cost.
Accompanying drawing explanation
Fig. 1 is the local expansion schematic diagram of magnesium alloy blood vessel rack one embodiment of the present utility model;
Fig. 2 is the enlarged drawing of part A in Fig. 1;
Fig. 3 is the structural representation of agent structure bar one embodiment of the present utility model;
Fig. 4 is the structural representation of connecting rod one embodiment of the present utility model.
Detailed description of the invention
This utility model is described in detail below in conjunction with embodiment.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
This utility model provides a kind of magnesium alloy blood vessel rack, is mainly used in the treatment of the diseases such as cardiovascular.This magnesium alloy blood vessel rack is netty circular tube structure, Fig. 1 and Fig. 2 is its deployed configuration schematic diagram.As depicted in figs. 1 and 2, magnesium alloy blood vessel rack of the present utility model comprises multiple agent structure bar 110 distributed vertically, and wherein, two adjacent agent structure bars 110 are connected by multiple connecting rod 120, in this utility model, each connecting rod 120 is arcuate structure.
It should be noted that, the axis described in this utility model refers to the axis of magnesium alloy blood vessel rack, the above-below direction namely shown in Fig. 1, and circumference refers to the circumference of magnesium alloy blood vessel rack, the left and right directions namely shown in Fig. 1.
In magnesium alloy blood vessel rack of the present utility model, connecting rod 120 for connecting agent structure bar 110 is arcuate structure, compared with traditional straight line connecting rod, connecting rod 120 has good deformability, thus improve the axial compliance of magnesium alloy blood vessel rack, radial support power and fatigue resistance, achieve the uniform expansion of magnesium alloy blood vessel rack; And the connecting rod 120 of arc can reduce the axial shortening distance of magnesium alloy blood vessel rack after strutting, and is beneficial to the location in operation, significantly can improves surgical effect, have good clinical efficacy; Meanwhile, magnesium alloy blood vessel rack structure of the present utility model is simple, easily processes, effectively reduces production cost.
See Fig. 1 to Fig. 3, the contour line of each agent structure bar 110 is wave, namely each agent structure bar 110 is the shaped form structure of dipping and heaving, preferably, in two adjacent agent structure bars 110, the trough of the crest of one of them agent structure bar 110 or trough and another agent structure bar 110 or crest one_to_one corresponding.As the crest of second agent structure bar 110 in Fig. 1 and the trough one_to_one corresponding of first agent structure bar 110, the crest one_to_one corresponding of the trough of second agent structure bar 110 and the 3rd agent structure bar 110.In this embodiment, the structure of wave can strengthen the elasticity of agent structure bar 110, and then the compliance of increase magnesium alloy blood vessel rack entirety, expansion uniformity and fatigue resistance; The crest of two adjacent agent structure bars 110 and trough correspondence are arranged, and can realize structural complementation, contribute to the lifting of magnesium alloy blood vessel rack radial support power.
It should be noted that, in this utility model, in definition Fig. 1, the agent structure bar 110 of the top is first agent structure bar 110, is followed successively by second agent structure bar 110, the 3rd agent structure bar 110...... downwards.
Preferably, continue see Fig. 1 to Fig. 3, the contour line of each agent structure bar 110 is sine curve or cosine curve.Just, cosine curve has higher structural symmetry, and curve smoothing, the compliance of magnesium alloy blood vessel rack can be increased further, be conducive to the uniform expansion of magnesium alloy blood vessel rack, reduce its strut after axial shortening distance, realize accurately locate, significantly improve surgical effect.More preferably, as shown in Figure 3, the sine curve of formation agent structure bar 110 or the joint long (the distance H namely between crest and trough) of cosine curve are 800 μm ~ 1200 μm.In the long scope of this joint, the amount of elastic deformation of agent structure bar 110 is higher, is conducive to the lifting of support compliance.
Preferably, see Fig. 1, one end of connecting rod 120 is connected with the crest of one of them agent structure bar 110 or trough, and corresponding trough or the crest of the other end and another adjacent agent structure bar 110 connect.This embodiment is a kind of connected mode of connecting rod 120, the connection of adjacent agent structure bar 110 is realized by the crest of correspondence and the connection of trough, effectively can shorten the length of connecting rod 120, thus saved raw material, be lowered into this, meanwhile, the link position in this embodiment is firm, add the support force of magnesium alloy blood vessel rack, improve the serviceability of magnesium alloy blood vessel rack.
More preferably, multiple connecting rod 120 is circumferentially spaced apart, is dislocatedly distributed vertically, and namely multiple connecting rod 120 is discontinuous setting.As shown in Figure 1, the distance in two cycles of interval between the connecting rod 120 that two circumferences are adjacent, the adjacent connecting rod 120 of two longitudinal directions is in the distance of circumferential misalignment one-period.The mode that connecting rod 120 adopts circumferential interval and axile displacement to combine, effectively reduces its magnitude setting, reduces material cost, can realize effective support in each orientation simultaneously, enhance the integrally-built steadiness of magnesium alloy blood vessel rack.
As preferably, in circumferential direction, the bending direction of two adjacent connecting rods 120 is identical; In the axial direction, the bending direction of two adjacent connecting rods 120 is contrary.See Fig. 1 and Fig. 2, connecting rod 120 between first agent structure bar 110 and second agent structure bar 110 bends all to the right, second agent structure bar 110 and the 3rd agent structure bar 110 bend all left, and the agent structure bar 110 of the 3rd agent structure bar 110 and the 4th bends all to the right again.Which makes connecting rod 120 present the bending direction replaced straggly on the whole, can promote the fatigue resistance of magnesium alloy bracket and the uniformity of expansion, have good clinical efficacy.
See Fig. 1, Fig. 2 and Fig. 4, each connecting rod 120 is circular arc.The structure of circular arc is not easy to produce bending dead angle, improves the deformability of connecting rod 120, be conducive to the lifting of the axial compliance of magnesium alloy blood vessel rack, and the connecting rod 120 of arc-shaped structure is convenient to processing and manufacturing, is conducive to the reduction of production cost.Preferably, the central angle corresponding to each connecting rod 120 is 60 ° ~ 120 °.Within the scope of this, the deformation quantity of connecting rod 120 is comparatively large, can promote the axial compliance of magnesium alloy blood vessel rack further.
Connecting rod 120 is long, and can affect the overall steadiness of magnesium alloy blood vessel rack, connecting rod 120 is too short, can reduce again the axial compliance of magnesium alloy blood vessel rack.As preferably, the arc length of each connecting rod 120 is 300 μm ~ 600 μm.Within the scope of this, connecting rod 120 can cooperatively interact with agent structure bar 110, while not affecting overall steadiness, improves the compliance of magnesium alloy blood vessel rack.
It should be noted that, in other embodiments, connecting rod 120 also can be elliptic arc structure.
Magnesium alloy blood vessel rack of the present utility model, there is stronger radial support power, preferably axial compliance and good anti-fatigue performance, uniform expansion can be realized in actual applications, and strut rear axis and reduce the distance less, be beneficial to the location in operation, there is good clinical efficacy and application value.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (10)
1. a magnesium alloy blood vessel rack, described magnesium alloy blood vessel rack is netty circular tube structure, it is characterized in that, described magnesium alloy blood vessel rack comprises multiple agent structure bar distributed vertically, adjacent two described agent structure bars are connected by multiple connecting rod, and each described connecting rod is arcuate structure.
2. magnesium alloy blood vessel rack according to claim 1, it is characterized in that, the contour line of each described agent structure bar is wave, in adjacent two described agent structure bars, the trough of the crest of agent structure bar described in one of them or trough and agent structure bar described in another or crest one_to_one corresponding.
3. magnesium alloy blood vessel rack according to claim 2, it is characterized in that, one end of each described connecting rod is connected with the crest of agent structure bar described in one of them or trough, and corresponding trough or the crest of the other end and agent structure bar described in adjacent another connect.
4. magnesium alloy blood vessel rack according to claim 3, is characterized in that, multiple described connecting rod is circumferentially spaced apart, is dislocatedly distributed vertically.
5. magnesium alloy blood vessel rack according to claim 2, is characterized in that, described wave is sine curve or cosine curve.
6. magnesium alloy blood vessel rack according to claim 5, is characterized in that, the joint length of described sine curve or described cosine curve is 800 μm ~ 1200 μm.
7. magnesium alloy blood vessel rack according to claim 1, is characterized in that, in circumferential direction, the bending direction of adjacent two described connecting rods is identical; In the axial direction, the bending direction of adjacent two described connecting rods is contrary.
8. the magnesium alloy blood vessel rack according to any one of claim 1 ~ 7, is characterized in that, each described connecting rod is arc-shaped structure.
9. magnesium alloy blood vessel rack according to claim 8, is characterized in that, the central angle corresponding to each described connecting rod is 60 ° ~ 120 °.
10. magnesium alloy blood vessel rack according to claim 1, is characterized in that, the arc length of each described connecting rod is 300 ~ 600 μm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261612.6U CN204600807U (en) | 2015-04-27 | 2015-04-27 | Magnesium alloy blood vessel rack |
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| CN201520261612.6U CN204600807U (en) | 2015-04-27 | 2015-04-27 | Magnesium alloy blood vessel rack |
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| CN204600807U true CN204600807U (en) | 2015-09-02 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105796218A (en) * | 2016-03-08 | 2016-07-27 | 黄连军 | Covered stent |
| CN105902331A (en) * | 2016-04-08 | 2016-08-31 | 南京永明医疗器械有限公司 | Intravascular stent and preparation method thereof |
| CN107550611A (en) * | 2017-10-18 | 2018-01-09 | 科塞尔医疗科技（苏州）有限公司 | A kind of intravascular stent |
| WO2018121340A1 (en) * | 2016-12-31 | 2018-07-05 | 先健科技(深圳)有限公司 | Absorbable stent |
| CN108785755A (en) * | 2018-06-28 | 2018-11-13 | 王缨 | Application of the magnesium alloy in preparing degradable biliary tract rack |
| CN109893295A (en) * | 2019-03-26 | 2019-06-18 | 北京航空航天大学 | A kind of negative poisson's ratio degradable blood vessel bracket structure |
| CN112972083A (en) * | 2019-12-17 | 2021-06-18 | 北京迈迪顶峰医疗科技有限公司 | Pulmonary artery stent for children |
-
2015
- 2015-04-27 CN CN201520261612.6U patent/CN204600807U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105796218A (en) * | 2016-03-08 | 2016-07-27 | 黄连军 | Covered stent |
| CN105902331A (en) * | 2016-04-08 | 2016-08-31 | 南京永明医疗器械有限公司 | Intravascular stent and preparation method thereof |
| WO2018121340A1 (en) * | 2016-12-31 | 2018-07-05 | 先健科技(深圳)有限公司 | Absorbable stent |
| CN108261275A (en) * | 2016-12-31 | 2018-07-10 | 先健科技(深圳)有限公司 | Bioabsorbable stent |
| US11253380B2 (en) | 2016-12-31 | 2022-02-22 | Biotyx Medical (Shenzhen) Co., Ltd | Absorbable stent |
| CN114831786A (en) * | 2016-12-31 | 2022-08-02 | 元心科技(深圳)有限公司 | Absorbable stent |
| CN107550611A (en) * | 2017-10-18 | 2018-01-09 | 科塞尔医疗科技（苏州）有限公司 | A kind of intravascular stent |
| CN107550611B (en) * | 2017-10-18 | 2024-03-15 | 科塞尔医疗科技（苏州）有限公司 | Vascular stent |
| CN108785755A (en) * | 2018-06-28 | 2018-11-13 | 王缨 | Application of the magnesium alloy in preparing degradable biliary tract rack |
| CN109893295A (en) * | 2019-03-26 | 2019-06-18 | 北京航空航天大学 | A kind of negative poisson's ratio degradable blood vessel bracket structure |
| CN112972083A (en) * | 2019-12-17 | 2021-06-18 | 北京迈迪顶峰医疗科技有限公司 | Pulmonary artery stent for children |
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