CN201968866U - Absorbable blood vessel support - Google Patents
Absorbable blood vessel support Download PDFInfo
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- CN201968866U CN201968866U CN2010206719383U CN201020671938U CN201968866U CN 201968866 U CN201968866 U CN 201968866U CN 2010206719383 U CN2010206719383 U CN 2010206719383U CN 201020671938 U CN201020671938 U CN 201020671938U CN 201968866 U CN201968866 U CN 201968866U
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Abstract
The utility model relates to an absorbable blood vessel support, comprising a near end, a far end and a patterned structure arranged between the near end and the far end and enclosed into a pipe shape, wherein the patterned structure comprises: a plurality of support rods and connection rods, the connection rod or the support rod comprises a straight segment, a U-shaped segment or a S-shaped segment, at least one perforation groove or perforation hole is opened on at least one support rod. The special structure of the blood vessel support not only improves the performance of the iron blood vessel support, but also more quickly makes the blood vessel support made of other absorbable material corroded and decomposed.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of absorbable blood vessel support that is used for narrow treatment in the lumen of vessels.
Background technology
1977 in the world the first routine percutaneous coronary intervene operation (PCI) finish in Switzerland, this example operation is with sacculus patient's left anterior descending branch stenosis to be expanded, and has obtained success.But the restenosis rate of blood vessel is very high behind the balloon expandable, surpasses 50%.Main cause is that after blood vessel was expanded and removed external force, blood vessel can elastical retraction.In the eighties in last century, invented and extensively applied to intravascular stent coronarius, mainly contain the metallic blood vessel bracket that rustless steel, cochrome or Nitinol are made, after these supports implant, can provide a persistent mechanical support to blood vessel, avoid the elasticity of blood vessels retraction, reduced the restenosis rate of lesion vessels.But because the permanent implantation of support, support can cause neointimal hyperplasia as foreign body, and the restenosis ratio of blood vessel is also very high.Since 2003, the application of drug stent drops to about 10% the restenosis rate of blood vessel.But drug stent still forever is present in the body, as on mechanical property, having very big-difference between the support of foreign body and the vascular tissue, can cause the chronic injury of blood vessel, later stage can be caused media atrophy, neointimal hyperplasia, finally also can cause the restenosis of blood vessel, thereby limit the further reduction of vascular restenosis rate.For child patient, implant the increase gradually of the intravascular stent meeting line artery of fixed dimension, can not adapt to the needs of its growth promoter.
Above-mentioned two kinds of interventional therapeutic techniques at angiostenosis all have shortcoming: adopt the balloon expandable blood vessel, though short run effect is better, because the elasticity of blood vessels retraction, the restenosis rate in later stage is very high; Be implanted into metal rack at blood vessel, comprise bare bracket and drug stent, narrow blood vessel can be expanded, and a persistent mechanical support is provided, but can cause the tunica intima damage in the metal rack process of expansion, bring out vascellum endometrial hyperplasia and cause restenosis.Also there is thrombosis in metal rack, goes out the blood coagulation complication, flexibility does not match, metal object forever retains in defectives such as can increasing restenosis incidence rate at a specified future date in the body.
In order to solve the above problems, a lot of in recent years people begin to pay close attention to intravascular stent absorbed by the body.After intravascular stent is implanted in the body, ideal should be provide enough in the early stage support force to blood vessel, discharge medicine simultaneously lesion vessels treated, after finishing therapeutical effect, intravascular stent is progressively absorbed, thereby prevents the generation of restenosis.According to the difference of material, mainly contain two class absorbable blood vessel supports at present, a class is the intravascular stent that adopts macromolecule polymer material to make, as polylactic acid; Another kind of is the support that adopts metal material to make, as magnesium alloy, ferrum.
The degradable macromolecular material of recently a lot of people's research and utilizations is made intravascular stent, and as polylactic acid bracket, the part Study achievement has begun clinical trial.But degradable high polymer material is compared aspect mechanical property with metal material and is had obvious defects, has therefore limited its application.The relative metal material of the mechanical property of macromolecule polymer material is lower, and intensity is not high, in order to reach certain radial support power, must increase the wall thickness of support, but after implanting, the support of wall thickness can produce inhibition to blood flow.In addition, the macromolecule polymer material support so the expansion ratio of the diameter of the relative blood vessel of support expansion back diameter is bigger than metal material support, therefore can produce bigger damage to blood vessel higher by the relaxation shrinkage behind the balloon expandable in the process of expansion.Macromolecule polymer material support X ray visuality in vivo is relatively poor, therefore in implantation process, is difficult to support is positioned observation.
The metal material that is applied to absorbable stent at present mainly contains two kinds: magnesium alloy materials and pure iron material.The magnesium alloy materials mechanical property is relatively poor, and corrosion rate is too fast.Magnesium alloy materials has excellent biological compatibility, but the maximum percentage elongation of magnesium alloy bracket is lower, brings very big challenge therefore for the structural design of magnesium alloy bracket, is difficult to guarantee the excellent mechanical performances of support.The corrosion rate of magnesium alloy bracket is too fast simultaneously, must control the speed that it is absorbed by the body by the material technology of complexity.Ferrum is a kind of element of needed by human, and pure iron has excellent biological compatibility and mechanical performance simultaneously.Compare with the polymer support or the magnesium alloy bracket of identical wall thickness, retort stand can provide enough radial support power to lesion vessels in lesion locations.But the corrosion rate of pure iron is relatively slow, adopts the retort stand of ordinary construction design, can retrain blood vessel diameter in this process, so can not satisfy the needs that the child patient blood vessel increases gradually through just being absorbed by the body for a long time.
Therefore, how designing and a kind ofly can accelerate the intravascular stent that the absorption of human body process guarantees simultaneously its mechanical property again, is to be badly in need of a problem solving at present.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of intravascular stent absorbed by the body that is used for the treatment of angiostenosis, is absorbed this two kinds of problems that performance is difficult to take into account as early as possible with mechanical property and the intravascular stent that solves absorbable stent of the prior art.
Solving the technical scheme that technical problem of the present utility model adopts is: a kind of absorbable blood vessel support, it has a near-end and a far-end, be to surround piped and distensible pattern structure between described near-end and the far-end, described pattern structure comprises a plurality of support bars and connecting rod, described connecting rod or support bar comprise straightway, U-shaped section or S shape section, offer at least one at least one support bar and run through groove or through hole.
As the further improvement of this utility model absorbable blood vessel support, described support bar has at least one cervical region, and described cervical region is positioned near described running through groove or the through hole, and described cervical region has the minimum widith on the described support bar.
Further improvement as this utility model absorbable blood vessel support, offer one or more parallel with straightway grooves that run through on the straightway of described support bar, described any run through groove and described straightway and constitute two branches, described branch has the minimum widith on the described support bar; Described a plurality of groove that runs through is arranged and adjacent running through a crossbeam is set between the groove along described support bar, and described crossbeam has the minimum widith on the described support bar.
As the further improvement of this utility model absorbable blood vessel support, a described ramose end place forms a cervical region, and described cervical region has the minimum widith on the described support bar; Described ramose other end place forms a wealthy portion, and described wealthy portion has the Breadth Maximum in the described branch.
As the further improvement of this utility model absorbable blood vessel support, on the described support bar or the junction between two support bars comprises bending section, offers at least one through hole on described bending section.
Further improvement as this utility model absorbable blood vessel support, described support bar comprises at least one truss structure, described truss structure comprises a plurality of described groove or through holes of running through, adjacent running through is provided with a crossbeam between groove or the through hole, the both sides of described truss structure also comprise a plurality of curb girders, and described crossbeam and described curb girder have the minimum widith on the described support bar.
Further improvement as this utility model absorbable blood vessel support, described decorative pattern shape structure also comprises some circle wave bands of adjacency in twos, described wave band links to each other by the connecting rod of described decorative pattern shape structure, every circle wave band comprises arched support and a plurality of trough that a plurality of head and the tail connect, two adjacent described arched support link to each other by a trough, described arched support comprises crest, first support bar, and second support bar, described first support bar is connected by crest with second support bar; Described at least one run through groove or through hole is opened on described first support bar or second support bar or crest or the trough.
As the further improvement of this utility model absorbable blood vessel support, described first support bar and second support bar are symmetrical.
As the further improvement of this utility model absorbable blood vessel support, the minimum widith on the described support bar is 0.05-0.1mm.
As the further improvement of this utility model absorbable blood vessel support, described intravascular stent is made with ferrum or ferroalloy materials.
Compared with prior art, the utlity model has following advantage: the absorbable stent that 1, the utlity model has special construction only needs the short period just to corrode and disintegrate, reduced the probability of lesion vessels restenosis, continued growth enlarges after complying with the lesion vessels reparation, has satisfied the requirement of clinical use; 2, the structure of this utility model absorbable stent can not sacrificed the mechanical property of intravascular stent when the corrosion that promotes intravascular stent is disintegrated, keeps the enough radial support power of lesion vessels before intravascular stent disintegrates; 3, this utility model absorbable stent available iron pipe is made, compare the wall thickness that does not increase intravascular stent with nonvolatil common intravascular stent, can adopt the clinical foley's tube that generally uses to carry, reduce the expense of absorbable stent clinical expansion, enlarged the scope of the clinical adaptation of absorbable stent.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the sketch map of this utility model absorbable stent before the laser engraving molding;
Fig. 2 is this utility model absorbable stent sketch map of expansion not after laser engraving and as yet;
Fig. 3 is the wherein plane outspread drawing of a circle wave band of Fig. 2 medium vessels support;
Fig. 4 is the sketch map of arched support first embodiment of a circle wave band among Fig. 3;
Fig. 5 is the sketch map of arched support second embodiment of a circle wave band among Fig. 3;
Fig. 6 is the sketch map of arched support the 3rd embodiment of a circle wave band among Fig. 3;
Fig. 7 is the sketch map of arched support the 4th embodiment of a circle wave band among Fig. 3;
Fig. 8 is the sketch map of arched support the 5th embodiment of a circle wave band among Fig. 3;
Fig. 9 is the sketch map of arched support the 6th embodiment of a circle wave band among Fig. 3;
Figure 10 is the sketch map of arched support the 7th embodiment of a circle wave band among Fig. 3.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, this utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation this utility model, and be not used in qualification this utility model.
As shown in Figure 1, first embodiment of this utility model absorbable blood vessel support was that a diameter is 2mm before by laser engraving, and wall thickness is the thin iron pipe of 0.1mm.Fig. 2 utilizes the intravascular stent of not expanding as yet 100 that forms behind this iron pipe of laser engraving, this intravascular stent 100 has a near-end and a far-end, between this near-end and this far-end, has distensible decorative pattern shape structure, one has the wave band composition that four circles link to each other, every circle wave band is connected to form a circle circumference from beginning to end by eight arched support, and each encloses wave band and links to each other by linear connecting rod 1.Be appreciated that this intravascular stent 100 also can by Liang Quan, three circles, five circles or more the wave band that links to each other of multi-turn form, the number of the arched support that every circle wave band comprises also can be greater or less than eight.This connecting rod 1 also can be other shapes, as U-shaped, S shape etc.This intravascular stent 100 also can be made with ferroalloy or other materials.General technology based on this area, known absorbable stent or the used pattern structure of other intravascular stent, so long as constitute by support bar and connecting rod, all can be used for absorbable stent of the present utility model, adopt principle of the present utility model, only need handle getting final product equally support bar wherein.
Fig. 3 is that this intravascular stent 100 is radially by the plane outspread drawing of the circle wave band wherein after expanding slightly, Fig. 4 is first embodiment of this one of them arched support of circle wave band, this arched support comprises that mutually at angle first support bar 2 and second support bar, 3, the first support bars 2 and second support bar 3 are that single straightway and the crest 4 by the arch top are connected substantially.For making intravascular stent have different performance, first support bar 2 and second support bar 3 can be symmetrical, also can be asymmetric.Support bar not only can have single straightway as shown in Figure 4, can also be the crooked shape that comprises some straightways, as the combination of U-shaped or S shape or these shapes and other shapes, only need do similarly to handle to straightway wherein.Adjacent arched support connects by the trough of its bottom, and the trough that certain wave band comprises can link to each other by the crest that connecting rod 1 and adjacent band comprise.For same wave band, its crest is than the far-end of the more close support of trough.Crest 4 can have different shapes with trough, also can be symmetrical structure.Offer first at the pars intermedia of first support bar 2 and run through groove 5, offer second at the pars intermedia of second support bar 3 and run through groove 6, this first runs through groove 5 and these second two ends of running through groove 6 respectively near the crest 4 that links to each other with the respective support bar and the position of trough.This first runs through groove 5 pars intermedia of first support bar 2 is divided into first branch 7 and second branch 8.Position at first branch, 7 close crests 4 is provided with a cervical region 9, and this cervical region 9 is the position of width minimum in first branch 7, and its minimum widith can be chosen as 0.05mm-0.1mm; The other end of this first branch 7 is provided with one wealthy 10, is the position of width maximum in first branch 7, and this width of wealthy 10 can be selected between 0.1-0.2mm.In first branch 7, can gradually change to the width wealthy 10 from cervical region 9.Be provided with another wealthy 11 in the position relative with cervical region 9 in this second branch 8, width can be selected between 0.1-0.2mm, and it is the position of width maximum in second branch 8; Be the cervical region 12 between 0.05mm-0.1mm being provided with another width with wealthy 10 relative position in this second branch 8, it is the position of width minimum in second branch 8.In second branch 8, can gradually change to the width wealthy 11 from cervical region 12.When these intravascular stent 100 dilatating and deformables,, can avoid big distortion by protection cervical region 12 for wealthy 10 because wealthy 10,11 intensity can avoid big distortion by protection cervical region 9 for wealthy 11 greater than the intensity of cervical region 9,12.After this intravascular stent 100 implants, because cervical region 9,12 is respectively the part of the width minimum in first branch 7 and second branch 8, cervical region 9 and cervical region 12 can cause the fracture fully of first support bar 2 because of corrosion fracture earlier, and intravascular stent 100 can disintegrate within a short period of time herein.Second support bar 3 has similar structure and technique effect with this first support bar 2, ruptures through after the corrosion of roughly the same time in human body.
In the support process of expansion, being positioned at first branch 7 and second branch 8 of running through groove 5 both sides can deform simultaneously.Wealthy 11 with cervical region 9 near aliging, wealthy 11 width than die in process of expansion difficulty deform, therefore; the stress of first support bar, 2 distortion mainly is distributed in wealthy 11, and the cervical region 9 of offside is stressed less, that is to say; because wealthy 11 protection, cervical region 9 can be avoided big distortion.Under the mating reaction of first branch 7 and second branch 8, first support bar 2 still keeps the good mechanical performance, therefore runs through the mechanical property that groove 5 can not destroy ferrum intravascular stent integral body.
Fig. 5 is the sketch map of arched support second embodiment on this utility model absorbable blood vessel support, itself and first embodiment are roughly the same, its difference is: two running through groove 13,14 and this first support bar 202 being divided into two branches of vertically arranging are set on first support bar 202, with also be provided with on second support bar 302 that first support bar 202 links to each other with run through groove 13 and 14 similarly vertically two of arrangements run through groove so that second support bar 302 also is divided into two branches.Similarly, ramose close crest one end is provided with a cervical region 15 therein, at another ramose opposite end another cervical region 17 is set.Have a crossbeam 16 will run through groove 13 and run through groove 14 between the groove 14 to separate running through groove 13 and run through.This crossbeam 16 is identical with the width of cervical region 15 and cervical region 17 at the width of these intravascular stent 100 circumferencial directions, and is the minimum widith on this first support bar 202.Two ramose corresponding sites on second support bar 302 also are provided with respectively and cervical region 15,17 same wide cervical regions, and two runs through between the groove also by separating with wide equally another crossbeam of crossbeam 16.With two branches of crossbeam connection support bar, can increase the structural strength and the stability of support bar.Just begin corrosion in these intravascular stent 100 implant into body, for first support bar 202, the fracture at first of the cervical region 15,17 of width minimum and crossbeam 16 causes this first support bar 202 to rupture fully.Second support bar 302 and first support bar 202 have similar structures and size, and two support bars can synchronously rupture fully, and intravascular stent 100 can be disintegrated within a short period of time herein.
Fig. 6 is the sketch map of arched support the 3rd embodiment on this utility model absorbable blood vessel support, first support bar 203 of this support member is identical with first support bar, 2 shape and structures in support member first embodiment, second support bar 303 is also arranged, but difference is, does not offer on second support bar 303 and runs through groove.The 3rd embodiment is compared with first embodiment, can improve intravascular stent at bulk strength, and intravascular stent is etched to the required time of disintegrating in human body about the same.
Fig. 7 is the sketch map of arched support the 4th embodiment on this utility model absorbable blood vessel support, the 4th embodiment of this support member is similar to first embodiment, its difference is: the stage casing of first support bar 204 of this support member is a straightway, offer in the centre position of this straightway a ratio run through groove 13 shorter run through groove 18, the length that runs through groove 18 is advisable with 1 to 3 times of the width of first support bar 204; The centre position of second support bar 304 is also offered and is run through groove 18 similar another and runs through groove.This runs through groove 18 straightway of first support bar 204 is divided into two branches, i.e. first branch 19 and second branch 20, these two parts that branch all is a width minimum on the support bar 204, it is cervical region, this first branch 19 and the at first fracture of second branch 20 caused this first support bar 204 to rupture fully when intravascular stent was corroded.Second support bar 304 and first support bar 204 have similar effect, also have and similarly run through groove and branch, and therefore two support bars can synchronously rupture fully, and intravascular stent can be disintegrated within a short period of time herein.Because it is shorter to run through groove 18 herein, influence to supporting bar structure intensity is less, does not need wealthy portion such in first embodiment, and the width of this first branch 19 and second branch 20 can be uniform substantially, its width can equate, can select in 0.05～0.1mm scope.
Fig. 8 is the sketch map of arched support the 5th embodiment on this utility model absorbable blood vessel support, the 5th embodiment of this support member is similar to the 4th embodiment, its difference is: the bending section that a S shape is arranged on the centre position of the first slightly S-shaped support bar 205 of this support member, the through hole 212 of a circle or sub-circular is set herein, second support bar 305 is also slightly S-shaped, also there is such through hole at its middle part, so the intensity of this first support bar 205 and second support bar 305 is better than the 4th embodiment.In the both sides of this through hole 212 cervical region 21,22 is set respectively.The width of this cervical region 21,22 is width minimum on this first support bar 205, as 0.05mm.The preferential corrosion fracture of position meeting of this cervical region 21,22 causes first support bar 205 to rupture fully.The same with first support bar 205, also there is the cervical region of same minimum widith the both sides of the through hole of second support bar 305, make the intravascular stent disintegration of can rupturing within a short period of time.
Fig. 9 is the sketch map of arched support the 6th embodiment on this utility model absorbable blood vessel support, the 6th embodiment of this support member is similar to the 3rd embodiment, its difference is: all do not offer at first support bar 206 of this support member and second support bar 306 and run through groove, and offer the through hole 23 of an almost fan at the crest location place that connects first support bar 206 and second support bar 306.This through hole 23 is divided into two arc portions that width is less with crest, promptly the radial width of 25, the first arc portions 24 of the second arc portion of the first arc portion 24 in the outside and inboard and the second arc portion 25 is equal substantially, is the position of width minimum on the whole support member, be cervical region, its width is approximately 0.05～0.1mm.Therefore, when intravascular stent was corroded in human body, two arc portion 24,25 fractures at first caused this support member to rupture fully at the crest place, and intravascular stent can be disintegrated within a short period of time herein.Adjacent arched support links to each other by trough, therefore also can be provided with at the trough place and through hole 23, the first arc portion 24 and the second arc portion, 25 similar structures, because intravascular stent is corroded, within a short period of time, adjacent arched support disconnected at the trough place.If intravascular stent adopts the pattern structure of other form, all groove, lateral arcs portion and the inside arc portion of similarly running through can be set at the crooked position of support bar.During the intravascular stent expansion, the outer lateral stress of the inboard stress ratio of crest or trough is big, and therefore, the second inboard arc portion 25 can be slightly wideer than the first arc portion 24 in the outside, makes whole arched support keep the good mechanical performance.
Figure 10 is the sketch map of arched support the 7th embodiment on this utility model absorbable blood vessel support, the 7th embodiment of this support member is similar to second embodiment, its difference is: the truss structure that is made of the multistage beam arm is set on the centre position of first support bar 207, this truss structure surrounds four through holes 26,27,28,29, form crossbeam 30,31,32 respectively between each through hole 26,27,28,29, similar truss structure is also arranged in the centre position of second support bar 307.The outside at first support bar 207 and second support bar, 307 middle parts also is respectively equipped with some curb girders, each curb girder and crossbeam 30,31,32 all have a minimum widith on the support bar, such as can in the 0.05-0.1mm scope, selecting.Satisfy in arched support under the prerequisite of higher structural strength and mechanical stability, the truss structure at first support bar 207 and second support bar, 307 middle parts makes the material usage of intravascular stent minimum.Because truss structure has reduced amount of metal, and intravascular stent is absorbed by the body easier within a short period of time fully; The existence of each through hole has increased the surface area of intravascular stent, has also just increased corroded area, and then has accelerated the disintegration of intravascular stent.
A kind of absorbable stent that is used for the treatment of angiostenosis that this utility model provides is because its special construction can not only improve the performance of iron intravascular stent, also faster corrosion of the intravascular stent that can allow other absorbable material make and disintegration.After the tunica intima cell gets up the intravascular stent integral coating, the specific part of this intravascular stent can be intact in the shorter time internal corrosion, and allow intravascular stent integral body fragment into several parts at circumferencial direction, intravascular stent is eliminated the radial constraint of blood vessel like this, and the normal change that therefore can not hinder blood vessel diameter herein is big.Be divided into several parts after disintegrating because of intravascular stent simultaneously, and coated by endo cell, remaining structure is also more tiny, helps the absorption of vascular tissue to the intravascular stent nubbin.Adopt the intravascular stent of this kind structure can not weaken the mechanical property of intravascular stent integral body, the radial support power before disintegrating still can satisfy the needs of lesion vessels.This utility model intravascular stent has not only shortened its time that is absorbed by the body, and guarantees that again intravascular stent has enough mechanical properties simultaneously.
Compared with prior art, the utlity model has following advantage: the absorbable stent that 1, the utlity model has special construction only needs the short period just to be corroded and disintegrates, reduced the probability of lesion vessels restenosis, continued growth enlarges after complying with the lesion vessels reparation, has satisfied the requirement of clinical use; 2, the structure of this utility model absorbable stent can not sacrificed the mechanical property of intravascular stent when the corrosion that promotes intravascular stent is disintegrated, keeps the enough radial support power of lesion vessels before intravascular stent disintegrates; 3, this utility model absorbable stent available iron pipe is made, compare the wall thickness that does not increase intravascular stent with nonvolatil common intravascular stent, can adopt the clinical foley's tube that generally uses to carry, reduce the expense of absorbable stent clinical expansion, enlarged the scope of the clinical adaptation of absorbable stent.
The above only is preferred embodiment of the present utility model; not in order to restriction this utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. absorbable blood vessel support, it has a near-end and a far-end, be to surround piped and distensible pattern structure between described near-end and the far-end, described pattern structure comprises a plurality of support bars and connecting rod, described connecting rod or support bar comprise straightway, U-shaped section or S shape section, it is characterized in that: offer at least one at least one support bar and run through groove or through hole.
2. absorbable blood vessel support as claimed in claim 1 is characterized in that: described support bar has at least one cervical region, and described cervical region is positioned near described running through groove or the through hole, and described cervical region has the minimum widith on the described support bar.
3. absorbable blood vessel support as claimed in claim 1, it is characterized in that: offer one or more parallel with straightway grooves that run through on the straightway of described support bar, described any run through groove and described straightway and constitute two branches, described branch has the minimum widith on the described support bar; Described a plurality of groove that runs through is arranged and adjacent running through a crossbeam is set between the groove along described support bar, and described crossbeam has the minimum widith on the described support bar.
4. absorbable blood vessel support as claimed in claim 3 is characterized in that: a described ramose end place forms a cervical region, and described cervical region has the minimum widith on the described support bar; Described ramose other end place forms a wealthy portion, and described wealthy portion has the Breadth Maximum in the described branch.
5. absorbable blood vessel support as claimed in claim 1 is characterized in that: on the described support bar or the junction between two support bars comprises bending section, offers at least one through hole on described bending section.
6. absorbable blood vessel support as claimed in claim 1, it is characterized in that: described support bar comprises at least one truss structure, described truss structure comprises a plurality of described groove or through holes of running through, adjacent running through is provided with a crossbeam between groove or the through hole, the both sides of described truss structure also comprise a plurality of curb girders, and described crossbeam and described curb girder have the minimum widith on the described support bar.
7. as each the described absorbable blood vessel support in the claim 1 to 6, it is characterized in that: described decorative pattern shape structure also comprises some circle wave bands of adjacency in twos, described wave band links to each other by the connecting rod of described decorative pattern shape structure, every circle wave band comprises arched support and a plurality of trough that a plurality of head and the tail connect, two adjacent described arched support link to each other by a trough, described arched support comprises crest, first support bar, and second support bar, described first support bar is connected by crest with second support bar; Describedly at least onely run through groove or through hole is opened on described first support bar or second support bar or crest or the trough.
8. absorbable blood vessel support as claimed in claim 7 is characterized in that: described first support bar and second support bar are symmetrical.
9. as each the described absorbable blood vessel support in the claim 2,3,4,6, it is characterized in that: the minimum widith on the described support bar is 0.05-0.1mm.
10. absorbable blood vessel support as claimed in claim 1 is characterized in that: described intravascular stent is made with ferrum or ferroalloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206719383U CN201968866U (en) | 2010-12-21 | 2010-12-21 | Absorbable blood vessel support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206719383U CN201968866U (en) | 2010-12-21 | 2010-12-21 | Absorbable blood vessel support |
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| CN201968866U true CN201968866U (en) | 2011-09-14 |
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| CN2010206719383U Expired - Lifetime CN201968866U (en) | 2010-12-21 | 2010-12-21 | Absorbable blood vessel support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012083796A1 (en) * | 2010-12-21 | 2012-06-28 | 先键科技（深圳）有限公司 | Absorbable blood vessel stent |
| 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 |
| CN113116616A (en) * | 2019-12-31 | 2021-07-16 | 元心科技(深圳)有限公司 | Absorbable instrument |
-
2010
- 2010-12-21 CN CN2010206719383U patent/CN201968866U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012083796A1 (en) * | 2010-12-21 | 2012-06-28 | 先键科技（深圳）有限公司 | Absorbable blood vessel stent |
| CN102525701A (en) * | 2010-12-21 | 2012-07-04 | 先健科技(深圳)有限公司 | Absorbable blood vessel stent |
| CN102525701B (en) * | 2010-12-21 | 2015-06-17 | 先健科技(深圳)有限公司 | Absorbable blood vessel stent |
| 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 |
| CN113116616A (en) * | 2019-12-31 | 2021-07-16 | 元心科技(深圳)有限公司 | Absorbable instrument |
| CN113116616B (en) * | 2019-12-31 | 2022-07-22 | 元心科技(深圳)有限公司 | Absorbable instrument |
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