CN110368156A - A kind of enhanced intravascular stent of anchoring - Google Patents
A kind of enhanced intravascular stent of anchoring Download PDFInfo
- Publication number
- CN110368156A CN110368156A CN201910779158.6A CN201910779158A CN110368156A CN 110368156 A CN110368156 A CN 110368156A CN 201910779158 A CN201910779158 A CN 201910779158A CN 110368156 A CN110368156 A CN 110368156A
- Authority
- CN
- China
- Prior art keywords
- support portion
- middle section
- intravascular stent
- anchoring
- outside
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
Abstract
This application discloses a kind of enhanced intravascular stents of anchoring, are used for nearly bifurcation support blood vessels in the blood vessel, including sequentially connected: distal end support portion, middle section support portion and proximal support portion；Wherein, structure is stuck up outside being provided on the middle section support portion；Structure, which is stuck up, outside described is located at the outside that middle section support portion is formed by annulus.In the embodiment of the present application, using setting is outer stick up structure by the way of, play the role of anchoring to blood vessel by sticking up structure outside, achieved the purpose that increase bracket tube wall frictional force, so that it is guaranteed that bracket migration-resistant technical effect for a long time.
Description
Technical field
This application involves medical instruments fields, in particular to a kind of enhanced intravascular stent of anchoring.
Background technique
Detection of iliac vein compression syndrome (IVCS) is one of principal disease of lower limb disease.Due to iliac vein artery centrum
The anatomical position of clamp, simple balloon expandable can not change its special anatomical position, locally will certainly restenosis.Therefore bracket
Implantation is one of the critical treatment scheme of the narrow especially detection of iliac vein compression syndrome of iliac vein.Dissection according to common iliac vein
Characteristic: the lasting cramping of artery and centrum；It is close to pelvis walking, physiological bending；Left and right common iliac vein crosses, and is in abdominal vein
Crotch；Vein blood vessel diameter change, opening are in horn mouth.Therefore it is good to require bracket to have in the lasting cramping section of artery and centrum
Good resistance type ability, bracket distal section then need good flexibility；It should be avoided that charge into abdominal cavity quiet in the bifurcated mouth of abdominal vein
Arteries and veins and influence opposite side blood flow or too short covering lesion causes the restenosis of blood vessel；Stent diameter should preferably meet blood vessel solution
It is broken to learn structure.
There are the fitting of bracket and vascular wall is bad and/or bracket and vascular wall after clinic implantation for existing traditional bracket
Frictional force it is less than normal, while impacted by blood and the problem of stent migration easily occurs.By the way of sticking up structure outside setting, pass through
Sticking up structure plays the role of anchoring to blood vessel outside, achievees the purpose that increase bracket and vascular wall frictional force, so that it is guaranteed that bracket is long-term
Migration-resistant technical effect.
Summary of the invention
The main purpose of the application is to provide a kind of enhanced intravascular stent of anchoring, increases rubbing for bracket and vascular wall
Power is wiped, it is migration-resistant for a long time to play the role of bracket, to solve the problems, such as that bracket shifts in the blood vessel.
To achieve the goals above, this application provides a kind of enhanced intravascular stents of anchoring.
Include: according to a kind of enhanced intravascular stent of anchoring of the application
Sequentially connected distal end support portion, middle section support portion and proximal support portion；
Connecting bridge structure company is all made of between distal end support portion and middle section support portion, middle section support portion and proximal support portion
It connects；
Distal end support portion, middle section support portion and proximal support portion are respectively cyclic structure respectively；
The inside of distal end support portion, middle section support portion and proximal support portion is provided with multiple support units；
Wherein, structure is stuck up outside being provided on the support portion of middle section；Stick up outside structure be located at middle section support portion be formed by it is cyclic annular empty
Between outside.
Further, connecting pin and front of motor are provided on the support unit in the support portion of middle section；
Connecting pin makes to connect into cyclic structure between support unit for connecting with other connecting pins；
Structure is stuck up outside being formed at least one front of motor.
Further, structure is stuck up outside tilted by the front of motor of support unit formed.
Further, sticking up structure outside includes proximally and distally, being proximally located on the front of motor of support unit, being distally non-
Connect in end part apart from connecting pin it is farthest a bit；
Relative to the space of cyclic structure where the support portion of middle section, distally the height apart from the space is greater than proximal end distance and is somebody's turn to do
The height in space.
Further, being proximally and distally formed by outer warp line is camber line or broken line or straight line.
Further, the front of motor for sticking up structure and support unit outside connects, and tilts outward, and it is single that junction is located at support
On the front of motor of member.
Further, all outer to stick up structure and divide at equal intervals in the cyclic structure of middle section support portion on same circumferential surface
Cloth.
Further, sticking up outer in the cyclic structure of middle section support portion of structure outside, to stick up height identical.
Further, the angular range for sticking up structure and cyclic structure outside is 0-30 degree.
Further, structure is stuck up outside using memory metal tubing.
In the embodiment of the present application, by the way of sticking up structure outside setting, support work is played to blood vessel by sticking up structure outside
With, achieved the purpose that increase bracket tube wall frictional force, so that realize bracket enhances anchoring in vein blood vessel, it is ensured that bracket
Long-term migration-resistant technical effect.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other
Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not
Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the application；
Fig. 2 is the expanded condition structural schematic diagram of the application；
Fig. 3 is the partial structural diagram of the embodiment of the present application 1；
Fig. 4 is the partial structural diagram of the embodiment of the present application 2；
Fig. 5 is the partial structural diagram of the embodiment of the present application 3；
Fig. 6 is the partial structural diagram of the embodiment of the present application 4.
The meaning of appended drawing reference in figure:
The distal end 11- rigid portion, 110- support unit, 1101- support monomer, 111- angle portion, 112- connection unit,
1120- connection monomer, 113- support unit body,
12- transition structure, 120- support unit, 1201- support monomer, 122- connection unit,
13- flexible structure, 130- support unit, 1301- support unit monomer, 132- connection unit,
14- sealing structure, 140- seal support unit, and 1401- supports monomer, 142- connection unit, 1420- connection list
Body, 143- support unit body, 1430- support unit monomer,
18- index aperture.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outside",
" in ", "vertical", "horizontal", " transverse direction ", the orientation or positional relationship of the instructions such as " longitudinal direction " be orientation based on the figure or
Positional relationship.These terms are not intended to limit indicated dress primarily to better describe the application and embodiment
Set, element or component must have particular orientation, or constructed and operated with particular orientation.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " installation ", " setting ", " being equipped with ", " connection ", " connected ", " socket " shall be understood in a broad sense.For example,
It may be a fixed connection, be detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be direct phase
It even, or indirectly connected through an intermediary, or is two connections internal between device, element or component.
For those of ordinary skills, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It include sequentially connected distal end support portion, middle section support portion and proximal end between vein blood vessel involved in the application
Support portion.In the prior art, it is divided into three-stage structure and four segment structures substantially for the blood vessel structure of vein blood vessel, and the application
Although three support portions have only been write in, has not represented and is only applicable to three-stage structure, and the technical solution of the application is in blood vessel
Interlude sticks up structure outside being provided with, as to whether being three sections or four sections, for not influencing in real time for the technical program.
As shown in Figure 1, the rack body as the application, distal end support portion and middle section support portion, middle section support portion and close
The connection of connecting bridge structure is all made of between the support portion of end, to form the main body of bracket.
Identical with other intravascular stents to be, distal end support portion, middle section support portion and proximal support portion are respectively ring respectively
Shape structure, to be adapted to be applicable in vascular environment.
In the present embodiment, it is single that the inside of distal end support portion, middle section support portion and proximal support portion is provided with multiple supports
Member, each unit are all made of diamond structure or meander line structure, as shown in the figure.
In the application, be provided on the support portion of middle section it is outer stick up structure, stick up structure outside and be located at middle section support portion and be formed by ring
The outside in shape space.The angular range for sticking up structure and cyclic structure outside is 0-30 degree, furthermore outer to stick up structure in selection and production
It is upper to be made using the metal pipe material for having memory function, it is preferably integrally formed using artistic carving, such benefit exists
In can disengaging in intravascular stent during, certain support force is realized to vascular wall, can be reached originally by the outer of bracket
Support force effect caused by wall.
The case where sticking up structure, has many outside, is broadly divided into two major classes, the first, structure is stuck up outside by supporting structure shape itself
At.
Connecting pin and front of motor are provided on support unit in the support portion of middle section, connecting pin is used to connect with others
End connection, makes to connect into cyclic structure between support unit, and front of motor is formed and described herein outer sticks up structure.
Specifically, sticking up structure outside includes proximally and distally, being proximally located on the front of motor of support unit, being distally non-company
Connect in end part apart from connecting pin it is farthest a bit.
Embodiment 1:
As shown, being proximally located on the front of motor of support unit, distally most positioned at the front of motor of support unit
Far point, proximal end is corresponding with a distal end, but a distal end not necessarily only corresponds to a proximal end, and in the present embodiment, one remote
End has just corresponded to two proximal ends, and specific corresponding relationship is determined by the support unit shape of support portion.
In the present embodiment, proximal end and distally formation are a broken line shapes.
Embodiment 2:
It is substantially similar with embodiment 1, unlike, in the present embodiment, proximal end and distally formation are an arc shapes.
Embodiment 3:
It is substantially similar with embodiment 1, unlike, in the present embodiment, proximal end and distally formation are a broken line shapes.
The second situation for sticking up structure outside, sticks up structure outside and is formed by the structure of bracket outer, be the equal of being connected to non-company
It connects on end, only for this programme for the first situation, cost is higher, but processing cost relative moderate, but remote
It is practical not as good as the first.
Embodiment 4:
In the present embodiment, structure is stuck up outside using linear structure and directlys adopt the feelings of linear structure in the latter case
Condition can be relatively more, can't generate other effects using camber line or broken line etc..
In addition, outer in the application sticks up structure, there are also other requirements, first in height, all outer height for sticking up structure
Will be consistent, otherwise once have it is inconsistent,
It is deeper to be then pierced into vascular wall by Ruo Genggao, although frictional force can be bigger, actually apply art and be easier to puncture in the process
Blood vessel.It is smaller even without for sticking up the mesh of structure enhancing anchoring to be achieved outside with the frictional force of vascular wall if lower
Be just not carried out.
The application plays a supporting role to blood vessel by sticking up structure outside, during carrying out intravascular stent conveying, sticks up outside
Structure has certain active force to blood vessel, has achieved the purpose that increase bracket tube wall frictional force, to realize bracket
Enhance anchoring in vein blood vessel, it is ensured that bracket migration-resistant technical effect for a long time.
On direction, stick up outside the angle of structure and cyclic structure towards can it is consistent with intravascular stent direction of advance can also be with
On the contrary, this there is no rigid requirements.It is specific when applying operation, it is contemplated that vein blood vessel is that blood by lower limb returns to heart,
Therefore sticking up structure outside and being preferably directed towards be towards heart direction, when such bracket has mobile trend, blood vessel will be pierced by sticking up part outside,
Play fixed effect.
Several embodiments as seen in figures 3-6 are the relatively better embodiments of the technical program, are stuck up outside using multilayer
Structure, the anchoring in vein blood vessel have better effect, can reduce frictional force suffered by moving process medium vessels wall,
But simultaneously as itself it is outer stick up structure there are still resilient nature, bracket still can be well fixed in the blood vessel.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of enhanced intravascular stent of anchoring, for nearly bifurcation support blood vessels in the blood vessel, it is characterised in that:
The enhanced intravascular stent of anchoring includes sequentially connected:
Distal end support portion, middle section support portion and proximal support portion；
Connecting bridge structure company is all made of between the distal end support portion and middle section support portion, middle section support portion and proximal support portion
It connects；
The distal end support portion, middle section support portion and proximal support portion are respectively cyclic structure respectively；
The distal end support portion, middle section support portion and the inside in proximal support portion are provided with multiple support units；
Wherein, structure is stuck up outside being provided on the middle section support portion；It is described it is outer stick up structure and be located at middle section support portion be formed by ring
The outside in shape space.
2. the enhanced intravascular stent of anchoring according to claim 1, it is characterised in that:
Connecting pin and front of motor are provided on support unit in the middle section support portion；
The connecting pin makes to connect into cyclic structure between support unit for connecting with other connecting pins；
It is formed at least one described front of motor outside described and sticks up structure.
3. the enhanced intravascular stent of anchoring according to claim 2, it is characterised in that:
It is described it is outer stick up structure and tilted by the front of motor of support unit formed.
4. the enhanced intravascular stent of anchoring according to claim 3, it is characterised in that:
The outer structure of sticking up includes proximally and distally, being proximally located on the front of motor of support unit, being distally disconnected end
In point apart from connecting pin it is farthest a bit；
Relative to the space of cyclic structure where the middle section support portion, distally the height apart from the space is greater than proximal end distance and is somebody's turn to do
The height in space.
5. the enhanced intravascular stent of anchoring according to claim 4, it is characterised in that:
It is described to be formed by outer warp line proximally and distally as camber line or broken line or straight line.
6. the enhanced intravascular stent of anchoring according to claim 2, it is characterised in that:
The outer front of motor connection for sticking up structure and support unit, and tilt outward, junction is located at the non-company of support unit
It connects on end.
7. the enhanced intravascular stent of anchoring described in -6 any one according to claim 1, it is characterised in that:
It is all described outer to stick up structure and be spacedly distributed in the cyclic structure of middle section support portion on same circumferential surface.
8. the enhanced intravascular stent of anchoring according to claim 7, it is characterised in that:
It is described outer to stick up outer in the cyclic structure of middle section support portion of structure to stick up height identical.
9. the enhanced intravascular stent of anchoring according to claim 1, it is characterised in that:
The outer structure and the angular range of cyclic structure of sticking up is 0-30 degree.
10. the enhanced intravascular stent of anchoring according to claim 1, it is characterised in that:
The outer structure of sticking up is using memory metal tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779158.6A CN110368156A (en) | 2019-08-22 | 2019-08-22 | A kind of enhanced intravascular stent of anchoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779158.6A CN110368156A (en) | 2019-08-22 | 2019-08-22 | A kind of enhanced intravascular stent of anchoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110368156A true CN110368156A (en) | 2019-10-25 |
Family
ID=68260346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910779158.6A Pending CN110368156A (en) | 2019-08-22 | 2019-08-22 | A kind of enhanced intravascular stent of anchoring |
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| Country | Link |
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| CN (1) | CN110368156A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111820886A (en) * | 2020-06-24 | 2020-10-27 | 浙江大学 | Vasospasm monitoring devices based on friction electricity generation technique |
| CN112022461A (en) * | 2020-09-16 | 2020-12-04 | 北京美迪微科技有限责任公司 | Be applied to intravascular stent of carotid |
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| US6911041B1 (en) * | 1997-10-23 | 2005-06-28 | C. R. Bard, Inc. | Expanded stent and a method for producing same |
| WO2018144342A1 (en) * | 2017-02-02 | 2018-08-09 | C.R. Bard, Inc. | Short stent |
| US20180303594A1 (en) * | 2017-04-21 | 2018-10-25 | Merit Medical Systems, Inc. | Deployable stents and related devices, systems, and methods |
| CN109662820A (en) * | 2019-01-31 | 2019-04-23 | 深圳市科奕顿生物医疗科技有限公司 | A kind of Self-expanded stent and its preparation method and application |
| CN109793600A (en) * | 2017-11-17 | 2019-05-24 | 杭州唯强医疗科技有限公司 | A kind of bracket for nearly bifurcation lesion |
| CN210872260U (en) * | 2019-08-22 | 2020-06-30 | 浙江归创医疗器械有限公司 | Anchoring enhanced type intravascular stent |
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2019
- 2019-08-22 CN CN201910779158.6A patent/CN110368156A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6911041B1 (en) * | 1997-10-23 | 2005-06-28 | C. R. Bard, Inc. | Expanded stent and a method for producing same |
| WO2018144342A1 (en) * | 2017-02-02 | 2018-08-09 | C.R. Bard, Inc. | Short stent |
| US20180303594A1 (en) * | 2017-04-21 | 2018-10-25 | Merit Medical Systems, Inc. | Deployable stents and related devices, systems, and methods |
| CN109793600A (en) * | 2017-11-17 | 2019-05-24 | 杭州唯强医疗科技有限公司 | A kind of bracket for nearly bifurcation lesion |
| CN109662820A (en) * | 2019-01-31 | 2019-04-23 | 深圳市科奕顿生物医疗科技有限公司 | A kind of Self-expanded stent and its preparation method and application |
| CN210872260U (en) * | 2019-08-22 | 2020-06-30 | 浙江归创医疗器械有限公司 | Anchoring enhanced type intravascular stent |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111820886A (en) * | 2020-06-24 | 2020-10-27 | 浙江大学 | Vasospasm monitoring devices based on friction electricity generation technique |
| CN111820886B (en) * | 2020-06-24 | 2021-09-10 | 浙江大学 | Vasospasm monitoring devices based on friction electricity generation technique |
| CN112022461A (en) * | 2020-09-16 | 2020-12-04 | 北京美迪微科技有限责任公司 | Be applied to intravascular stent of carotid |
| CN112022461B (en) * | 2020-09-16 | 2023-11-24 | 北京美迪微科技有限责任公司 | Be applied to vascular support of carotid artery |
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