CN205144805U - Blood vessel support - Google Patents
Blood vessel support Download PDFInfo
- Publication number
- CN205144805U CN205144805U CN201520829878.6U CN201520829878U CN205144805U CN 205144805 U CN205144805 U CN 205144805U CN 201520829878 U CN201520829878 U CN 201520829878U CN 205144805 U CN205144805 U CN 205144805U
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- CN
- China
- Prior art keywords
- open zone
- silk thread
- adjacent
- area
- intravascular stent
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- 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.)
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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
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
-
- 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
- A61F2/89—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
Abstract
The utility model discloses a blood vessel support, including forming support body (1) for the tubular structure, this support body (1) include along many rings form silk thread (2) of axle arrangement, wind cyclic annular silk thread (2) the circumference of support body (1) forms to the annular structure, be formed with open zone (4) and emclosed area (5) on the tubular structure lateral wall of support body (1), support body (1) still including being located connecting wire (3) of emclosed area (5), this connecting wire (3) be used for the link bit in it is adjacent in emclosed area (5) cyclic annular silk thread (2), wherein open zone (4) are located the one side of support body (1) and by emclosed area (5) center on. Consequently, the open zone of not establishing the connecting wire can make the flex point of the vascular kink of this region reply, and the deformation of the structure of support own is little, and the life -span is high to can provide the support stability of support through the emclosed area around this open zone, the practicality is strong.
Description
Technical field
This utility model relates to medical vascular stent field, particularly, relates to a kind of intravascular stent.
Background technology
Along with the arriving of aging society, the application for the intravascular stent of radial support generation blood vessel blockage gets more and more.Wherein, with implantation position and the sick difference of planting for the treatment of, the kind of intravascular stent, structure and implantation are also different.At present, widely used support comprises bare bracket, coating bracket and overlay film frame, and the expansion mode of support can be divided into ball to expand mode and from swollen mode.Structurally, for common bare bracket, intravascular stent is generally straight-tube shape and usually becomes conductive structure by Metal Cutting, to have stable supporting construction.Wherein support of the prior art is being evenly arranged of each position silk thread of straight-tube shape structure, so that manufacture.But, due to the multiformity of human vas, if at component implant frame on the main blood vessel of the branch vessel had, the thrombosis between main blood vessel and branch vessel will be caused, the region of blood vessel bending is more in addition, the very large distortion of the blood vessel needs of straight barrel type itself could be fitted the blood vessel wall of bending part, causes the life-span of support lower, otherwise will produce internal hemorrhage due to trauma and thrombosis in region.
Utility model content
The purpose of this utility model is to provide a kind of intravascular stent, and this intravascular stent is stronger in the constitutionally stable simultaneous adaptation of guarantee.
To achieve these goals, this utility model provides a kind of intravascular stent, comprise the rack body being formed as tubular structure, this rack body comprises the multi-turn ring-type silk thread arranged vertically, each loop silk thread is formed as ripple struction respectively, described rack body also comprises the connecting line connecting two adjacent rings ring-type silk thread, to form enclosed region by adjacent two described connecting lines and described two adjacent rings ring-type silk thread, the tubular structure sidewall of described rack body is made up of open zone and enclosed area, wherein complete on contour line crest and/or the quantity of trough are described open zone more than the described enclosed region of two, the described enclosed region of crest complete on contour line and/or no more than two of the quantity of trough is described enclosed area, wherein said open zone is the multiple of one or axial adjacent layout, this one or more open zone be positioned at described rack body circumferential side and by described enclosed area around.
Preferably, between the crest of adjacent described ring-type silk thread and axially align respectively between trough, between the crest that described connecting line is connected to adjacent described ring-type silk thread or between trough.
Preferably, axially adjacent described connecting line circumferentially interlaced arrangement.
Preferably, the circumferential size in the open zone that described multiple axis is adjacent reduces from center position gradually towards both sides vertically.
Preferably, the area in described open zone and the area ratio of described enclosed area are: 1:5 ~ 1:10.
Preferably, described open zone is with corresponding with the branch vessel of blood vessel to be implanted or the kink of blood vessel.
Preferably, described open zone circumferential size accounts for the 1/5-1/2 of overall circumference.
By technique scheme, open zone can be corresponding with the branch vessel of blood vessel to reduce the influence of blood flow of branch vessel and this region can be made to tackle the flex point of blood vessel kink, and the distortion of this body structure of support is little, and the life-span is high.Meanwhile, due to open zone be only arranged on axial side and by enclosed area around, therefore, it is possible to provided the stability of strutting system of support by the enclosed area of larger area, practical.
Other feature and advantage of the present utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation this utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of the intravascular stent that this utility model preferred implementation provides.
Description of reference numerals
1 rack body 2 ring-type silk thread
3 connecting line 4 open zones
5 enclosed areas
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of this utility model, is not limited to this utility model.
In this utility model, when not doing contrary explanation, the noun of locality such as " inside and outside " of use refers to the interior and outer of corresponding component profile.
As shown in Figure 1, this utility model provides a kind of intravascular stent, comprises the rack body 1 being formed as tubular structure, and this rack body 1 comprises the multi-turn ring-type silk thread 2 arranged vertically, and each loop silk thread 2 is formed as ripple struction respectively, so that compression or expansion.Rack body 1 also comprises the connecting line 3 connecting two adjacent rings ring-type silk thread 2, to form enclosed region by adjacent two connecting lines 3 and two adjacent rings ring-type silk thread 2, thus realizes the stable support structure of rack body.This intravascular stent can be used as the support skeleton of bare bracket or overlay film frame, and it can use the materials such as metal tantalum, medical stainless steel and Nitinol to make.In order to realize the purpose of this utility model, the tubular structure sidewall of rack body 1 is made up of open zone 4 and enclosed area 5, wherein, crest complete on contour line and/or the quantity of trough are open zone 4 more than the enclosed region of two, the enclosed region of crest complete on contour line and/or no more than two of the quantity of trough is enclosed area 5, the quantity of its medium wave peak and/or trough is construed as: when only there is the one in crest and trough, and this quantity is the quantity of crest or trough; When there is crest and trough, this quantity should be the quantity sum of crest and trough simultaneously.That is, there are two crests or two troughs at the most in the contour line of enclosed area 5, or a crest and a trough, otherwise this closed area is open zone 4.Therefore, can find out that open zone 4 is relevant with the layout tightness degree of connecting line 3 with the formation of enclosed area 5, the circumferential size in open zone 4 is comparatively large thus be that the branch vessel of blood vessel can the influence of blood flow of degree of reduction branch vessel after corresponding, and the size of connecting line 3 of not establishing being due to open zone 4 can make more greatly this region easily bend with the bending of blood vessel, thus not needing the moderate finite deformation of intravascular stent itself, the support life-span itself is higher.
And in order to realize this object, open zone 4 can be the multiple of or axial adjacent layout, this one or more open zone 4 be positioned at rack body 1 circumferential side and by enclosed area 5 around.Namely this open zone 4 or multiple adjacent open zone 4 can not be positioned at the end of rack body 1, but are closed district 5 and surround, and open zone 4 can be made so corresponding with the kink of branch vessel or blood vessel.And the gross area due to enclosed area 5 is greater than the gross area in open zone 4, ensure that the supporting construction that overall intravascular stent is stable.Wherein, open zone 4 circumferential size can account for the 1/5-1/2 of overall circumference.To tackle branch vessel or kink.If the circumferential size in open zone 4 is excessive, the structure of rack body 1 can be made unstable, too small, the reply to branch vessel or kink cannot be realized.
It should be noted that, the embodiment that can realize technique scheme has multiple, arrangement of such as connecting line 3, ring-type silk thread etc., this utility model for convenience of description, in this introduction preferred implementation wherein, this optimal way, only for illustration of this utility model, is not limited to this utility model.Wherein the connection implication of connecting line 3 is not constrained to pass through connection means and connecting line 3 is connected to ring-type silk thread 2 support, but represents the purposes connecting ring-type silk thread 2.It can by cut and the machine-shaping of ring-type silk thread 2 one.
In preferred implementation of the present utility model, in order to structure is more rationally stable, the i.e. tactical rule in enclosed area 5 and open zone 4, preferably, axially align respectively between the crest of adjacent annular silk thread 2 and between trough, between the crest that connecting line 3 is connected to adjacent annular silk thread 2 or between trough, namely connecting line 3 extends vertically and is parallel to each other.Like this, the enclosed area 5 formed is the regular shape shown in Fig. 1.To make integral support main body 1 more stable.More preferably, axially adjacent connecting line 3 circumferentially interlaced arrangement.That is, be respectively used at the connecting line 3 of ring-type silk thread 2 both sides the crest and the trough that connect this ring-type silk thread.Thus most of regional structure of the rack body 1 be made up of enclosed area is stablized.In other embodiments, connecting line 3 can also be connected between a crest and a trough, should drop on equally in protection domain of the present utility model for this type of distortion.
In addition, in order to make the Stability Analysis of Structures impact of open zone 4 on integral support body 1 minimum, such as overall structure is not impacted when rack body 1 curved district, preferably, as shown in Figure 1, in open zone 4 be adjacent multiple time, the circumferential size in open zone 4 reduces from center position gradually towards both sides vertically, and namely the structure influence of 4 pairs of enclosed areas 5, open zone diminishes gradually.In other words, have maximum circumferential size open zone 4 be positioned at the axial centre position in the region that all open zones 4 occupy.Wherein the circumferential size in said open zone 4 is relevant as connecting line 3 quantity circumferentially that should arrange during enclosed area with in this region herein, and the connecting line more than 3 that namely should arrange, the circumferential size in this region is larger.Wherein in the present embodiment, the full-size at center should be arranged 5 connecting lines, and adjacent region, both sides should arrange 4 connecting lines, in other are implemented, can also continue to arrange the region that should arrange 3,2,1 connecting lines 3, to play the effect of transition further.
In addition, in preferred implementation of the present utility model, the area in open zone 4 and the area ratio of enclosed area 5 are: 1:5 ~ 1:10.With while the effect farthest playing open zone 4, ensure the structural stability of rack body 1.
To sum up, the intravascular stent that this utility model provides, by arranging open zone 4 cleverly, makes the adaptability of blood vessel stronger, and does not affect the structural stability of rack body 1, have higher practicality and promotional value.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; this utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, this utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (7)
1. an intravascular stent, comprise the rack body (1) being formed as tubular structure, this rack body (1) comprises the multi-turn ring-type silk thread (2) arranged vertically, each loop silk thread (2) is formed as ripple struction respectively, described rack body (1) also comprises the connecting line (3) connecting two adjacent rings ring-type silk thread (2), to form enclosed region by adjacent two described connecting lines (3) and described two adjacent rings ring-type silk thread (2), it is characterized in that, the tubular structure sidewall of described rack body (1) is made up of open zone (4) and enclosed area (5), wherein complete on contour line crest and/or the quantity of trough are described open zone (4) more than the described enclosed region of two, the described enclosed region of crest complete on contour line and/or no more than two of the quantity of trough is described enclosed area (5), wherein said open zone (4) is the multiple of one or axial adjacent layout, this one or more open zone (4) be positioned at described rack body (1) circumferential side and by described enclosed area (5) around.
2. intravascular stent according to claim 1, it is characterized in that, between the crest of adjacent described ring-type silk thread (2) and axially align respectively between trough, between the crest that described connecting line (3) is connected to adjacent described ring-type silk thread (2) or between trough.
3. intravascular stent according to claim 2, is characterized in that, axially adjacent described connecting line (3) circumferentially interlaced arrangement.
4. intravascular stent according to claim 1, is characterized in that, the circumferential size in the open zone (4) that described multiple axis is adjacent reduces from center position gradually towards both sides vertically.
5. intravascular stent according to claim 1, is characterized in that, the area of described open zone (4) and the area ratio of described enclosed area (5) are: 1:5 ~ 1:10.
6. intravascular stent according to claim 1, is characterized in that, described open zone (4) are with corresponding with the branch vessel of blood vessel to be implanted or the kink of blood vessel.
7. intravascular stent according to claim 1, is characterized in that, described open zone (4) circumferential size accounts for the 1/5-1/2 of overall circumference.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829878.6U CN205144805U (en) | 2015-10-23 | 2015-10-23 | Blood vessel support |
| PCT/CN2016/101708 WO2017067396A1 (en) | 2015-10-23 | 2016-10-10 | Vascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829878.6U CN205144805U (en) | 2015-10-23 | 2015-10-23 | Blood vessel support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205144805U true CN205144805U (en) | 2016-04-13 |
Family
ID=55680552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520829878.6U Active CN205144805U (en) | 2015-10-23 | 2015-10-23 | Blood vessel support |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205144805U (en) |
| WO (1) | WO2017067396A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017067396A1 (en) * | 2015-10-23 | 2017-04-27 | 李雷 | Vascular stent |
| WO2019042203A1 (en) * | 2017-08-28 | 2019-03-07 | 先健科技(深圳)有限公司 | Tube stent |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599036A (en) * | 2021-08-18 | 2021-11-05 | 江苏大学 | Flexible blood vessel support applied to peripheral blood vessels |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2517403Y (en) * | 2001-07-27 | 2002-10-23 | 微创医疗器械(上海)有限公司 | Coronary artery stand with non-homogeneous waveform structure |
| CN2691626Y (en) * | 2004-04-28 | 2005-04-13 | 微创医疗器械(上海)有限公司 | Blood vessel rest special for arteria opening narrow position |
| GB0609911D0 (en) * | 2006-05-18 | 2006-06-28 | Angiomed Ag | Bend-capable stent prosthesis |
| US8425587B2 (en) * | 2009-09-17 | 2013-04-23 | Abbott Cardiovascular Systems Inc. | Method of treatment with a bioabsorbable stent with time dependent structure and properties and regio-selective degradation |
| CN204121205U (en) * | 2014-10-29 | 2015-01-28 | 心凯诺医疗科技(上海)有限公司 | The self-expanding type blood vessel dilator of unique texture |
| CN205144805U (en) * | 2015-10-23 | 2016-04-13 | 李雷 | Blood vessel support |
-
2015
- 2015-10-23 CN CN201520829878.6U patent/CN205144805U/en active Active
-
2016
- 2016-10-10 WO PCT/CN2016/101708 patent/WO2017067396A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017067396A1 (en) * | 2015-10-23 | 2017-04-27 | 李雷 | Vascular stent |
| WO2019042203A1 (en) * | 2017-08-28 | 2019-03-07 | 先健科技(深圳)有限公司 | Tube stent |
| US11173059B2 (en) | 2017-08-28 | 2021-11-16 | Lifetech Scientific (Shenzhen) Co., Ltd | Tube stent |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017067396A1 (en) | 2017-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |