CN207168613U - A kind of intravascular stent - Google Patents
A kind of intravascular stent Download PDFInfo
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- CN207168613U CN207168613U CN201620702687.8U CN201620702687U CN207168613U CN 207168613 U CN207168613 U CN 207168613U CN 201620702687 U CN201620702687 U CN 201620702687U CN 207168613 U CN207168613 U CN 207168613U
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- intravascular stent
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Abstract
It the utility model is related to a kind of intravascular stent, intravascular stent includes location area section and support section, location area section includes multiple first repeated monomers, support section includes at least two support units and at least one connection unit, support unit includes multiple second repeated monomers, the number of first repeated monomer is different from the number of the second repeated monomer, and the second repeated monomer in the support unit of the rear and front end of support section is connected one to one to form closed loop configuration by the second repeated monomer in the first connection unit and another adjacent support unit.Intravascular stent of the present utility model is especially suitable for iliac vein, it is good to the support effect of iliac vein, and the damage to wall of vein is small, the formation of secondary thrombus in intravascular stent implantation after-poppet can effectively be avoided, in addition, intravascular stent of the present utility model can be good at being positioned in iliac vein, improve the accuracy of release, easy to operate.
Description
Technical field
The utility model belongs to medical instruments field, and in particular to a kind of intravascular stent.
Background technology
Venous disease is most commonly seen in vascular surgery disease, especially lower-limb deep veins thrombus and lower limb great saphenous vein
Varicose is more common.And caused by both diseases have in the reason for being formed and are greatly iliac vein compression.Iliac vein by
Press syndrome（Iliacveincompressionsyndrome, IVCS) mean that iliac vein is oppressed by common iliac artery, cause intracavitary to be glued
Even, it is narrow or inaccessible, so as to which the syndrome of range of clinical symptom, also known as May-Thurner, Cockett syndromes occur.Ilium is quiet
Arteries and veins iliac vein incidence is 20%~34%.
Solves compression of vein always to perform the operation in the treatment, due to needing to perform the operation into abdomen, wound is larger, and patient is difficult always
To receive, thus it is less in the operation number of cases of China's report.Cause many patient's lower extremity swelling and distensions not solve, have some patientss because
The blood stasis of blood is stagnant to there is phlebothrombosis.From the development of the last century nineties interventional technique, the country begins through balloon expandable, branch
The method of frame implantation solves iliac vein compression, and by the clinical treatment of nearly 20 years, the method for PCI is vascular surgery
Boundary is received, simultaneously because wound is small, patient can also receive, and the present country has many hospitals to carry out this work.Simultaneously
The technology is used for the patient of iliac vein thrombosis sequelae by also many doctors.With being significantly increased for clinical disease number of cases,
And clinic treats the patient of detection of iliac vein compression syndrome using the larger arterial bracket of bore always at present, so as to occur one
The problem of individual important, i.e., the probability of secondary thrombus is higher in support, and this is small with arterial bracket mesh, and the structure of iliac vein is led
Arterial bracket is caused to stretch into 1-1.5 centimetres of inferior caval vein, and its support force is not for caused by designed by vein.
At present, the research report display of lot of domestic and foreign, the support designed using detection of iliac vein compression syndrome as indication
It is less.The country can be taken off self-inflated bone vein support（Utility model：201520126120.6）Effectively prevention deep veins of lower limb
Pulmonary embolism caused by thrombus breaks loose, after therapeutic purposes are completed, it can be taken out through jugular vein or femoral vein approach and avoid support long-term
Indwelling produces complication.The support narrow for treating iliac vein（Utility model：201320053442.3）By nickel-titanium metal silk
The latticed webmaster being coiled into is woven, webmaster front end mouth of pipe face is inclined-plane, and the angle on inclined-plane and webmaster section is 40 degree, is had on webmaster
The mark circle of ellipse, realizes accurate positioning.But these bone vein supports still have some problems：All it is not suitable for recovering
Bone venous blood flow state and increase CBF, and easily cause the formation of thrombus, thus be necessary to carry out new bone venous branch
The research and development and application study of frame.
Utility model content
Technical problem to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of different blood of structure
Pipe holder, its preparation method and application, the intravascular stent, which has, is not easily formed thrombus, and histocompatbility is good, to the branch of vein
Support force is appropriate and does not influence blood flow, simple in construction, easy to operate, accurate positioning, disclosure satisfy that in clinic to iliac vein treatment
Need.
To solve above technical problem, the utility model adopts the following technical scheme that：
A purpose of the present utility model is to provide a kind of intravascular stent, and it can be from the pressure with first cross-sectional diameter
Contracting state change to the expansion state of second cross-sectional diameter being extended,
Described intravascular stent is included in the location area section being connected on the axis direction of described intravascular stent and support
Section,
Described location area section includes circumferentially distributed multiple first repeated monomers along described intravascular stent,
Described support section is included at least two supports to be adjoined one another on the axis direction of described intravascular stent
Unit and at least one connection unit, described support unit include circumferentially distributed multiple the along described intravascular stent
Two repeated monomers,
The number of the first described repeated monomer is different from the number of the second described repeated monomer, positioned at described support
The second repeated monomer in the described support unit of the rear and front end of section by the first described connection unit with it is adjacent
The second repeated monomer in support unit described in another connects one to one to form closed loop configuration.
According to an embodiment of the present utility model, the number of the first described repeated monomer is less than the second described weight
The number of multiple monomer.
Preferably, the number of the second described repeated monomer is 2 ~ 4 times of number of the first described repeated monomer, described
The first repeated monomer number be 4 to 10.
Further, the leading section of described support section is connected with the first developing cell.
According to a preferred aspect of the present utility model, the leading section connection of the second repeated monomer of described support section
Have the first developing cell, the number of the number of the first developing cell and the first described repeated monomer can with it is equal can not also
Deng.
In the utility model, the first repeated monomer can be connected with the second repeated monomer, can also be with connection unit phase
Connection.
According to an embodiment of the present utility model, the bearing of trend of described location area section and described intravascular stent
The angle of axis direction be 0 ° ~ 60 °.
Preferably, when the angle of the bearing of trend and the axis direction of described intravascular stent of described location area section is 0 °
When, described intravascular stent is substantially in cylinder；When the axle of the bearing of trend and described intravascular stent of described location area section
When line direction has angle, described location area section is gradual towards leading section from the one end being connected with described support section
Extend away from the direction of the axis of described intravascular stent.
According to a preferred aspect of the present utility model, the leading section of the first described repeated monomer is fillet, fillet
Circular arc internal diameter radius is more than or equal to 0.1mm.
According to a preferred aspect of the present utility model, the length of the first described repeated monomer is 5 ~ 15mm, is preferably
10~15mm；The length of described support section is 40 ~ 140mm, preferably 60 ~ 120mm；The thickness of described intravascular stent is
0.1~0.3mm。
According to an embodiment of the present utility model, the length of the second described repeated monomer is 1 ~ 7mm, preferably 2 ~
5mm。
Preferably, the rearward end of described support section is connected with multiple second developing cells.It is it is further preferable that described
The number of second developing cell is 3 to 10.
According to an embodiment of the present utility model, described connection unit is included along described intravascular stent
Circumferentially distributed multiple connectors, the number of described connector is not more than the number of the second described repeated monomer.
Specifically, the number of the connector in the described connection unit of the rear and front end of described support section with
The number of the second described repeated monomer is equal, the connection in the described connection unit at the middle part of described support section
The number of body is less than the number of the second described repeated monomer.
Preferably, the width of described connector is 0.1 ~ 0.3mm.
In the utility model, the width of described connector is equal with the width of the first described repeated monomer.
In the utility model, the width of the second described repeated monomer can use regular width, such as 0.1 ~ 0.3mm.
According to an embodiment of the present utility model, the leading section of multiple the first described repeated monomers is formed
Plane and the axis perpendicular of described intravascular stent.
According to an embodiment of the present utility model, the leading section of multiple the first described repeated monomers is formed
Plane and the angle of the axis of described intravascular stent be 45 ° ~ 89 °.
In the utility model, the material of described intravascular stent is stainless steel, memorial alloy, titanium alloy, tantalum alloy, cobalt chromium
One or more in alloy, biodegradable metals, biodegradable polymer, magnesium alloy, pure iron.
Another purpose of the present utility model is to provide a kind of preparation method of above-mentioned intravascular stent, by material according to support
Path on design drawing is cut by laser, and then handles to obtain described intravascular stent through pickling, electrochemical process.
Certainly, intravascular stent of the present utility model can also be prepared using other method, for example, braiding or welding.
3rd purpose of the present utility model is to provide a kind of stent delivery system, and it includes above-mentioned intravascular stent.
4th purpose of the present utility model is to provide a kind of purposes of above-mentioned intravascular stent in bifurcated vessels.
Preferably, the utility model provides a kind of purposes of above-mentioned intravascular stent in iliac vein.
The front of intravascular stent is defined as in the utility model with side where location area section, to support section place side to define
For the rear of intravascular stent.
Angle defined in the utility model is to be formed between straight line and plane or straight line and straight line less than 90 °
Angle.
The total length of intravascular stent in the utility model refers to the leading section of the first repeated monomer to the second developing cell
Most long vertical range.The length of first repeated monomer and the second repeated monomer refers to leading section to the rear end of each repeated monomer
The vertical range in portion.The length of support section refers to the first developing cell to the vertical range between the second developing cell.
Due to the implementation of above-mentioned technical proposal, the utility model has the following advantages that compared with prior art：
Intravascular stent of the present utility model is good to the support effect of iliac vein especially suitable for iliac vein, and to wall of vein
Injury it is small, can effectively avoid intravascular stent implantation after-poppet in secondary thrombus formation, the utility model by will support
Section both ends form closed loop configuration, and centre uses open loop structure, can be good at improving the support force at both ends, are advantageous to support and release
The support uniformity and expansion uniformity at rear both ends are put, so as to reduce the damage to vascular wall.In addition, blood of the present utility model
Pipe holder can be good at being positioned in iliac vein, improve the accuracy of release, easy to operate, blood of the present utility model
The structure of pipe holder is simple, convenient for production, and cost is low, so as to have important practical significance and good potential applicability in clinical practice.
Brief description of the drawings
Fig. 1 is the schematic diagram that the intravascular stent of embodiment 1 is implanted in iliac vein（The bearing of trend and blood vessel of location area section
The axis direction of support is consistent）；
Fig. 2 is that the intravascular stent of embodiment 1 is launched into the structural representation of plane；
Fig. 3 is stereogram of the intravascular stent in expansion state of embodiment 1（The bearing of trend and intravascular stent of location area section
Axis direction it is consistent）；
Fig. 4 is stereogram of the intravascular stent in expansion state of embodiment 1（Location area section is in bell shape）；
Fig. 5 is the enlarged drawing of the first connector；
Fig. 6 is the enlarged drawing of the first repeated monomer；
Fig. 7 is that the intravascular stent of embodiment 2 is launched into the structural representation of plane；
Fig. 8 is stereogram of the intravascular stent in expansion state of embodiment 2（The bearing of trend and intravascular stent of location area section
Axis direction it is consistent）；
Fig. 9 is stereogram of the intravascular stent in expansion state of embodiment 2（Location area section is in bell shape）；
Figure 10 is the schematic diagram that the intravascular stent of embodiment 1 is implanted in iliac vein（Location area section is in bell shape）；
Figure 11 is the schematic diagram that the intravascular stent of embodiment 2 is implanted in iliac vein（The bearing of trend and blood of location area section
The axis direction of pipe holder is consistent）；
Figure 12 is the schematic diagram that the intravascular stent of embodiment 2 is implanted in iliac vein（Location area section is in bell shape）；
Wherein：1st, location area section；11st, the first repeated monomer；2nd, central support section；21st, support unit；211st, the second weight
Multiple monomer；22nd, connection unit；221st, connector；4th, the first developing cell；5th, the second developing cell；β is the first repeated monomer
The plane and the angle of the axis of intravascular stent that leading section is formed；W1 is the width of connector；W3 is the first repeated monomer
Width；W4 is the width of the second repeated monomer；L1 is the length of the first repeated monomer；L2 is the length of support section；L4 is
The length of two repeated monomers；L6 is total length of the intravascular stent in expansion state.
Embodiment
With reference to specific embodiment, the utility model is described in more detail, but the utility model is not limited to
Following examples.
Intravascular stent of the present utility model is primarily adapted for use in bifurcated vessels, especially suitable in iliac vein（Such as Fig. 1）.
During intravascular stent is implanted into iliac vein, intravascular stent is arranged in the conveyer of stent delivery system, now, blood vessel branch
Frame is in compressive state, after intravascular stent is delivered to correct position by conveyer, discharges intravascular stent, intravascular stent is to extending out
Open to expansion state, so as to be played a supporting role to iliac vein, intravascular stent has the first cross section in compressive state, is expanding
There is the second cross section, also, the diameter of the first cross section is less than the diameter of the second cross section when opening status.This practicality is new
In type, the first cross section and the second cross section is support the cross section of section 2, and the cross section and the axis of intravascular stent mutually hang down
Directly.In the present embodiment, the external diameter of the second cross section is 10 ~ 20mm, preferably 12 ~ 16mm.
The material of intravascular stent is stainless steel, memorial alloy, titanium alloy, tantalum alloy, cochrome, biodegradable gold
One or more in category, biodegradable polymer, magnesium alloy, pure iron.Stainless steel can use SUS-316L stainless steels etc..Note
Ni-Ti alloys, Cu-Al-Mn alloys etc. can be used by recalling alloy.Cochrome can use CoCr-L605 cochromes etc..Biology can
Degraded metal is a kind of metal that can be decomposed in human body, such as pure magnesium, magnesium alloy, pure iron and ferroalloy etc..Biodegradable
Polymer can be PLA, polyglycolic acid, gather（Lactic acid -6-caprolactone）, gather（Glycolic -6-caprolactone）Deng biodegradable
Polymer.In addition, it can also coat a kind of biodegradable polymer material in vivo in degradable metal and be used as blood vessel branch
The material of frame.
Intravascular stent of the present utility model can utilize laser engraving one-shot forming.The production process of laser engraving：First,
Cutting path is created using CAM based on support Design drawing；Secondly, metal or high polymer material are cut by laser；Finally,
Surface smoothness is improved through overpickling and electrochemical process, makes each edge shape mellow and full.
As shown in Figures 2 and 3, intravascular stent is included in the positioning area connected from front to back on the axis direction of intravascular stent
Section 1 and support section 2.
Location area section 1 includes circumferentially distributed multiple first repeated monomers 11 along intravascular stent.
Support section 2 is included at least two support units 21 that are adjoined one another on the axis direction of intravascular stent and at least
One connection unit 22, support unit 21 include circumferentially distributed multiple second repeated monomers 211 along intravascular stent, connection
Unit 22 includes being not more than the second repetition along circumferentially distributed multiple connectors 221 of intravascular stent, the number of connector 221
The number of monomer 211.The second repeated monomer 211 in the support unit 21 of the rear and front end of support section 2 passes through first
Connector 221 in connection unit 22 corresponds with the second repeated monomer 211 in another adjacent support unit 21 to be connected
Connect to form closed loop configuration, therefore, the number of the connector 221 in the connection unit 22 of the rear and front end of support section 2
It is equal with the number of the second repeated monomer 211, of the connector 221 in the connection unit 22 at the middle part of support section 2
Number of the number less than the second repeated monomer 211, it is preferable that each the number of the second repeated monomer 211 in support unit 21 is
Each 2 ~ 3 times of 221 numbers of connector in connection unit 22.Therefore, the support unit positioned at the middle part of support section 2 is to open
Ring structure.
The structure of the first repeated monomer 11 and the second repeated monomer 211 in the utility model can form hole
Arbitrary shape, such as V-type, grid type, rhombus etc..Distribution mode of the connector 221 on whole intravascular stent can be any
, such as form of straight lines, V-type, W types, S types, N-type etc..
In the utility model, the leading section of support section 2 is connected with the first developing cell 4, in the present embodiment, supports section
The leading section of 2 the second repeated monomer 211 is connected with the first developing cell 4, and the setting of the first developing cell 4 causes intravascular stent
It can be good at realizing positioning, facilitate doctor to find point of release accurately.
In the present embodiment, the rearward end of the first repeated monomer 11 is connected with the leading section of the second repeated monomer 211.
In the utility model, the number of the first repeated monomer 11 is 4 to 10, the number and first of the first developing cell 4
The number of repeated monomer 11 is equal or different.
In the utility model, the rearward end of support section 2 is connected with multiple second developing cells 5, the second developing cell 5
Number is 3 to 10, also, the number of the second developing cell 5 is equal with the number of the first developing cell 4.In the present embodiment, the
Two developing cells 5 can be connected with support unit 21, or be connected with connection unit 22, and the second developing cell 5 is along blood
The circumference of pipe holder is uniformly distributed.
In the utility model, the number of the first repeated monomer 11 is different from the number of the second repeated monomer 211.Preferably,
The number of first repeated monomer 11 is less than the number of the second repeated monomer 211, in the present embodiment, of the second repeated monomer 211
Number is 2 ~ 4 times of the number of the first repeated monomer 11, so as to ensure that the aperture that the first repeated monomer 11 is formed is larger, such as Fig. 1 institutes
Show after intravascular stent is implanted into iliac vein, when location area section 1 extends inferior caval vein, can avoid because the aperture of intravascular stent is smaller
To the formation for causing thrombus and location area section 1 is avoided to impact the blood flow of opposite iliac vein.
In the present embodiment, the angle of the bearing of trend of location area section 1 and the axis direction of intravascular stent is 0 ° ~ 45 °.Such as figure
Shown in 3, the bearing of trend of location area section 1 is consistent with the axis direction of intravascular stent, i.e., angle is 0 °, and now, intravascular stent exists
Substantially it is in cylinder type during expansion state.As shown in figure 4, the bearing of trend of location area section 1 and the axis direction of intravascular stent are deposited
In angle, also, location area section 1 is from supporting the one end that section 2 is connected towards leading section gradually away from blood vessel branch
The direction extension of the axis of frame, i.e. location area section 1 are in the bell shape gradually expanded outwardly from back to front.
In the present embodiment, the width W1 of connector 221（As shown in Figure 5）For 0.1 ~ 0.3mm.The width W1 of connector 221
With the width W3 of the first repeated monomer 11（As shown in Figure 6）It is equal.The width W4 of second repeated monomer 211（As shown in Figure 5）Can
With using regular width, such as 0.1 ~ 0.3mm.
In the present embodiment, 0.1 ~ 0.3mm of thickness of intravascular stent（It is not shown）, the thickness of intravascular stent refers to blood vessel branch
The external diameter of the cross section of frame and the difference of internal diameter.
In the present embodiment, the leading section of the first repeated monomer 11 is fillet, and the circular arc internal diameter radius of fillet is more than 0.1mm
（It is not shown）, so as to reduce stimulation of the intravascular stent to blood vessel.
In the present embodiment, the length L1 of the first repeated monomer 11 is 5 ~ 15mm, preferably 10 ~ 15mm, the first repeated monomer
11 length is long, and the leading section of the first repeated monomer 11 can be caused to touch the vascular wall on opposite and cause the stimulation to blood vessel
Deng adverse effect；The length of first repeated monomer 11 is too short, then can influence positioning of the intravascular stent in iliac vein so that blood vessel
Support can not stably be implanted in required position.
The length L2 of support section 2 is 40 ~ 140mm, preferably 60 ~ 120mm, and the length L4 of the second repeated monomer 211 is 1
~ 7mm, preferably 2 ~ 5mm.That is, support section 2 generally comprises 16 support units 21, and certainly, the number of support unit 21 also may be used
It is actually needed and is adjusted with basis.
Total length L 6 of the intravascular stent of the present utility model in expansion state is 50 ~ 120mm, preferably 60 ~ 100mm.
Embodiment 1 is identical with the above of embodiment 2, difference only with：In embodiment 1, multiple first repeated monomers
The plane and the axis perpendicular of intravascular stent that 11 leading section is formed, as shown in Figures 2 and 3.In embodiment 2, Duo Ge
The plane that the leading section of one repeated monomer 11 is formed intersects with the axis of intravascular stent, and multiple first repeated monomers 11
The plane and the angle β of the axis of intravascular stent that leading section is formed are 45 ° ~ 89 °, as shown in Figs. 7-9, wherein, Fig. 7 to 9
In, plane and the angle β of the axis of intravascular stent that the leading sections of multiple first repeated monomers 11 is formed are 70 °, embodiment 2
In, the length of the first repeated monomer 11 gradually changes, and still, its length range should be in the first repeated monomer of above-mentioned restriction
Within 11 length range.
The utility model is described in detail above, its object is to allow the personage for being familiar with this art can be much of that
Solve content of the present utility model and be carried out, the scope of protection of the utility model, and the utility model can not be limited with this
The above embodiments are not limited to, all equivalent change or modifications made according to Spirit Essence of the present utility model, should all be covered
Within the scope of protection of the utility model.
Claims (12)
1. a kind of intravascular stent, it can be changed to from the compressive state with first cross-sectional diameter be extended
The expansion state of two cross-sectional diameters, it is characterised in that：
Described intravascular stent is included in the location area section being connected on the axis direction of described intravascular stent（1）And Support
Section（2）,
Described location area section（1）Including circumferentially distributed multiple first repeated monomers along described intravascular stent（11）,
Described support section（2）It is single to be included at least two supports to be adjoined one another on the axis direction of described intravascular stent
Member（21）With at least one connection unit（22）, described support unit（21）Including the circumference point along described intravascular stent
Multiple second repeated monomers of cloth（211）,
The first described repeated monomer（11）Number and described the second repeated monomer（211）Number it is different, positioned at described
Support section（2）Rear and front end described support unit（21）In the second repeated monomer（211）Pass through described company
Order member（22）With the support unit described in adjacent another（21）In the second repeated monomer（211）Connect one to one with
Form closed loop configuration.
2. intravascular stent according to claim 1, it is characterised in that：The first described repeated monomer（11）Number be less than
The second described repeated monomer（211）Number.
3. intravascular stent according to claim 2, it is characterised in that：The second described repeated monomer（211）Number be
The first described repeated monomer（11）2 ~ 4 times of number, the first described repeated monomer（11）Number be 4 to 10.
4. intravascular stent according to claim 1, it is characterised in that：Described support section（2）Leading section be connected with
First developing cell（4）.
5. intravascular stent according to claim 1, it is characterised in that：Described location area section（1）Bearing of trend and institute
The angle of the axis direction for the intravascular stent stated is 0 ° ~ 60 °.
6. intravascular stent according to claim 1, it is characterised in that：The first described repeated monomer（11）Leading section be
Fillet, the circular arc internal diameter radius of fillet are more than or equal to 0.1mm.
7. intravascular stent according to claim 1, it is characterised in that：The first described repeated monomer（11）Length for 5 ~
15mm, described support section（2）Length be 40 ~ 140mm, the thickness of described intravascular stent is 0.1 ~ 0.3mm.
8. intravascular stent according to claim 1, it is characterised in that：Described support section（2）Rearward end be connected with
Multiple second developing cells（5）, described the second developing cell（5）Number be 3 to 10.
9. intravascular stent according to claim 1, it is characterised in that：Described connection unit（22）Including along described
Intravascular stent circumferentially distributed multiple connectors（221）, described connector（221）Number be not more than described second
Repeated monomer（211）Number, described connector（221）Width be 0.1 ~ 0.3 mm.
10. intravascular stent according to claim 9, it is characterised in that：Positioned at described support section（2）Rear and front end
Described connection unit（22）In connector（221）Number and described the second repeated monomer（211）Number it is equal,
Positioned at described support section（2）Middle part described connection unit（22）In connector（221）Number less than described
The second repeated monomer（211）Number.
11. intravascular stent according to claim 1, it is characterised in that：Multiple the first described repeated monomers（11）Before
The plane that end is formed and the axis perpendicular of described intravascular stent.
12. intravascular stent according to claim 1, it is characterised in that：Multiple the first described repeated monomers（11）Before
The plane that end is formed and the angle of the axis of described intravascular stent are 45 ° ~ 89 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620702687.8U CN207168613U (en) | 2016-07-06 | 2016-07-06 | A kind of intravascular stent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620702687.8U CN207168613U (en) | 2016-07-06 | 2016-07-06 | A kind of intravascular stent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368159A (en) * | 2019-08-22 | 2019-10-25 | 浙江归创医疗器械有限公司 | A kind of bending-type intravascular stent |
| CN114451947A (en) * | 2021-12-30 | 2022-05-10 | 北京久事神康医疗科技有限公司 | Aneurysm auxiliary stent |
-
2016
- 2016-07-06 CN CN201620702687.8U patent/CN207168613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368159A (en) * | 2019-08-22 | 2019-10-25 | 浙江归创医疗器械有限公司 | A kind of bending-type intravascular stent |
| CN114451947A (en) * | 2021-12-30 | 2022-05-10 | 北京久事神康医疗科技有限公司 | Aneurysm auxiliary stent |
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