CN108175548A - A kind of accurate positioning and submissive iliac vein stent - Google Patents
A kind of accurate positioning and submissive iliac vein stent Download PDFInfo
- Publication number
- CN108175548A CN108175548A CN201810074229.8A CN201810074229A CN108175548A CN 108175548 A CN108175548 A CN 108175548A CN 201810074229 A CN201810074229 A CN 201810074229A CN 108175548 A CN108175548 A CN 108175548A
- Authority
- CN
- China
- Prior art keywords
- stent
- leading portion
- back section
- holder back
- iliac vein
- 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
- 210000003111 iliac vein Anatomy 0.000 title claims abstract description 37
- 238000010147 laser engraving Methods 0.000 claims abstract description 6
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 208000007536 Thrombosis Diseases 0.000 abstract description 8
- 230000007774 longterm Effects 0.000 abstract description 5
- 230000017531 blood circulation Effects 0.000 abstract description 4
- 230000003902 lesion Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 206010058992 Iliac vein occlusion Diseases 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000004394 hip joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 206010020772 Hypertension Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 206010034272 Pelvic venous thrombosis Diseases 0.000 description 1
- 206010048591 Post thrombotic syndrome Diseases 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 206010070995 Vascular compression Diseases 0.000 description 1
- 206010047249 Venous thrombosis Diseases 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 210000003090 iliac artery Anatomy 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000002966 stenotic effect Effects 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
- 201000004822 varicocele Diseases 0.000 description 1
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
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Optics & Photonics (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Physics & Mathematics (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention belongs to the field of medical instrument technology, more particularly to a kind of accurate positioning and submissive iliac vein stent, including stent leading portion and holder back section, the stent leading portion and holder back section are metal material, the stent leading portion is laser engraving conical mesh pipe structure, and the length dimension of the stent leading portion is：A=4 ㎝, the face where the open front of the stent leading portion is inclined-plane, and inclined angle is：20 °≤β≤30 °, the holder back section is woven mesh pipe structure, and the length dimension of the holder back section is：The ㎝ of 4 ㎝≤b≤20, the rear end of the stent leading portion is Chong Die with the front end of holder back section, and the length dimension being overlapped is：C=1 ㎝, the stent leading portion and holder back section weld together in the part of overlapping.The present invention, which can both be accurately positioned, is positioned over common iliac vein opening, does not influence offside iliac vein blood flow, and the generation of thrombus is reduced with good compliance, keeps the long-term unobstructed of stent.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of accurate positioning and submissive iliac vein stent.
Background technology
Iliac Vein Compression Syndrome (Cockett syndrome) and iliac vein postthrombotic syndrome all show as iliac vein
Occlusion or it is narrow, venous return obstacle and venous hypertension can be caused, cause veins of lower extremity valve insufficiency, varication, under
The long-term oedema of limb, pigmentation and chronic ulcer of leg such as do not recover for a long time at the serious consequences, while can secondary iliac-femoral venous thrombus shape
Into in addition there is sterility or male's varicocele, it is the key that clinical treatment to restore the unobstructed of iliac vein.Tradition is opened
Big operation wound, weak curative effect and postoperative easy generation phlebothrombosis are put, it is clinical seldom to use, and intracavity operation is extensive at present
The unobstructed primary treatment regimen of multiple iliac vein, by intervening means, the implanted metal after iliac vein stenosis carries out balloon expandable
Bare bracket, this method is easy to operate, wound is small, success rate is high, but still has some problems, current useful clinically iliac vein
There are mainly two types of stents：One kind is laser engraving metallic support, and another kind is metal knitted stent, and placement can be accurately positioned in the former
In common iliac vein, but for long section iliac vein lesion, easy Thrombosis in sten after long section laser engraving stent is placed, and
It cannot be across hip joint；Due to easy cripetura, stent has to enter into more than inferior caval vein 2cm just can ensure that completely metal knitted stent
Common iliac vein lesion is covered, such stent is usually kept off completely to be open in offside common iliac vein, influences offside venous return, it is easy to
Offside iliac vein thrombosis is induced, and braided support is sometimes difficult to the cicatricial stricture of support common iliac vein, stent occurs
The problem of iliac vein can not be opened completely.
Invention content
The present invention seeks to：A kind of accurate positioning and submissive iliac vein stent are intended to provide, can be both accurately positioned
Common iliac vein opening is positioned over, does not influence offside iliac vein blood flow, and the generation of thrombus is reduced with good compliance, is kept
Stent it is long-term unobstructed, have very important meaning to the treatment of clinical Iliac vein occlusion or stenotic lesion.
To realize the above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of accurate positioning and submissive iliac vein stent, including stent leading portion and holder back section, the stent leading portion
It is metal material with holder back section, the stent leading portion is laser engraving conical mesh pipe structure, the stent leading portion
Length dimension is：A=4 ㎝, the face where the open front of the stent leading portion is inclined-plane, and inclined angle is：20°≤β≤
30 °, the holder back section is woven mesh pipe structure, and the length dimension of the holder back section is：4 ㎝≤b≤20 ㎝, it is described
The rear end of stent leading portion is Chong Die with the front end of holder back section, and the length dimension being overlapped is：C=1 ㎝, the stent leading portion and branch
Frame back segment welds together in the part of overlapping.
Further, diameter dimension is at the open front of the stent leading portion：The ㎝ of 1.2 ㎝≤R≤1.6, the stent leading portion
After-opening at diameter dimension be：1.0㎝≤r≤1.4㎝.
The beneficial effects of the invention are as follows：
1. can not only be accurately positioned and be positioned over common iliac vein opening, offside iliac vein blood flow, Er Qieneng are not interfered with
Ensure common iliac vein lesion is completely covered；
2. common iliac vein rear is rumpbone, front is common iliac artery, and local scar is usually very tough and tensile, stent in the present invention
Leading portion can ensure that enough support forces, it is ensured that stent is unobstructed；
3. segment length is short before stent in the present invention, thrombus will not be formed in stent；
4. it is not straight line that distal section is out of shape in iliac vein, but the curve for S types is (as shown in Figure 2) out of shape, is propped up in the present invention
Frame back segment is submissive, adherent good, and wall of vein tissue will not be exposed to venous lumen across stent, therefore be not susceptible to thrombus in stents shape
Into stent easily keeps long-term unobstructed；
5. in the present invention holder back section can across hip joint placement, be not in stent fracture；
6. avoiding needs the overlapping of two or three stents to place when long section iliac vein lesion places stent in the prior art
The defects of, stent inner face is more smooth.
Description of the drawings
The present invention can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is the structure diagram of a kind of accurate positioning of the invention and submissive iliac vein stent embodiment；
Fig. 2 is distal section S type curves schematic diagram out of shape in iliac vein；
In figure marked as：
1. stent leading portion, 2. holder back sections.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair
Bright technical solution further illustrates.
As shown in Figure 1, a kind of accurate positioning and the submissive iliac vein stent of the present invention, including stent leading portion 1 and stent
Back segment 2, stent leading portion 1 and holder back section 2 are metal material, and stent leading portion 1 is laser engraving conical mesh pipe structure, is propped up
The length dimension of frame leading portion 1 is：A=4 ㎝, the face where the open front of stent leading portion 1 is inclined-plane, and inclined angle is：20°
≤ β≤30 °, holder back section 2 are woven mesh pipe structure, and the length dimension of holder back section 2 is：The ㎝ of 4 ㎝≤b≤20, stent
The rear end of leading portion 1 is Chong Die with the front end of holder back section 2, and the length dimension being overlapped is：C=1 ㎝, after stent leading portion 1 and stent
Section 2 welds together in the part of overlapping.
Preferably, diameter dimension is at the open front of stent leading portion 1：The ㎝ of 1.2 ㎝≤R≤1.6, after stent leading portion 1
Opening diameter dimension is：1.0㎝≤r≤1.4㎝.Such design can meet the iliac vein diameter need of almost all people
It asks, the scope of application is wider.
It should be noted that the length dimension of stent leading portion 1 is：A=4 ㎝, the face where the open front of stent leading portion 1 are
Inclined-plane, and inclined angle is：20 °≤β≤30 °, the length dimension of holder back section 2 is：4 ㎝≤b≤20 ㎝, it is such to set
Meter, can match with the structure and trend of iliac vein blood vessel, can increase the compactness of the stent and blood vessel, pre- preventing thrombosis
It is formed；In addition, the rear end of stent leading portion 1 is Chong Die with the front end of holder back section 2, and the length dimension being overlapped is：C=1 ㎝, in this way
Design, in order to increase the fastness that stent leading portion 1 and holder back section 2 connect, avoid stent leading portion 1 and holder back section
2 are broken in overlapping, extend the service life of the stent；In addition to this, diameter dimension is at the open front of stent leading portion 1：1.2
The ㎝ of ㎝≤R≤1.6, diameter dimension is at the after-opening of stent leading portion 1：The ㎝ of 1.0 ㎝≤r≤1.4, it is therefore intended that meet vast trouble
The otherness of person's blood vessel, versatility are stronger.It should be strongly noted that these parameters, as a combination, common realize " both may be used
Common iliac vein opening is positioned over to be accurately positioned, does not influence offside iliac vein blood flow, and thrombus is reduced with good compliance
Generation, keep the long-term unobstructed of stent " technical purpose.
In addition, the face where the open front of stent leading portion 1 is inclined-plane, the open front of stent leading portion 1 is practical on a circle,
Round minimum point is lower mark point, and round peak is upper mark point, also there is mark point in remaining position of circle, these mark points
Setting, it is therefore an objective to：For increasing development and positioning, in order to see the aperture position of stent in the case where intervening hand fluoroscopy during operation
And upper and lower relation.
Above-described embodiment is merely exemplary to illustrate the principle of the present invention and its effect, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, all those of ordinary skill in the art without departing from disclosed spirit with being completed under technological thought
All equivalent modifications or change, should by the present invention claim be covered.
Claims (2)
1. a kind of accurate positioning and submissive iliac vein stent, it is characterised in that：Including stent leading portion (1) and holder back section (2),
The stent leading portion (1) and holder back section (2) is metal material, and the stent leading portion (1) is laser engraving conical mesh
Pipe structure, the length dimension of the stent leading portion (1) are：A=4 ㎝, the face where the open front of the stent leading portion (1) are
Inclined-plane, and inclined angle is：20 °≤β≤30 °, the holder back section (2) is woven mesh pipe structure, after the stent
Section (2) length dimension be：The ㎝ of 4 ㎝≤b≤20, the rear end of the stent leading portion (1) is Chong Die with the front end of holder back section (2),
And the length dimension of overlapping is：C=1 ㎝, the stent leading portion (1) and holder back section (2) weld together in the part of overlapping.
2. a kind of accurate positioning according to claim 1 and submissive iliac vein stent, it is characterised in that：Before the stent
Diameter dimension is at the open front of section (1)：The ㎝ of 1.2 ㎝≤R≤1.6, diameter dimension at the after-opening of the stent leading portion (1)
For：1.0㎝≤r≤1.4㎝.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810074229.8A CN108175548A (en) | 2018-01-25 | 2018-01-25 | A kind of accurate positioning and submissive iliac vein stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810074229.8A CN108175548A (en) | 2018-01-25 | 2018-01-25 | A kind of accurate positioning and submissive iliac vein stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108175548A true CN108175548A (en) | 2018-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810074229.8A Pending CN108175548A (en) | 2018-01-25 | 2018-01-25 | A kind of accurate positioning and submissive iliac vein stent |
Country Status (1)
| Country | Link |
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| CN (1) | CN108175548A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223266A (en) * | 2018-08-20 | 2019-01-18 | 北京美迪微科技有限责任公司 | A kind of vein blood vessel bracket and its conveyer |
| CN110613538A (en) * | 2019-10-24 | 2019-12-27 | 上海唯域医疗科技有限公司 | Blood vessel support capable of positioning |
| CN111789703A (en) * | 2020-08-07 | 2020-10-20 | 上海恩盛医疗科技有限公司 | Blood vessel stent construction method based on modularization |
| CN112569027A (en) * | 2019-05-10 | 2021-03-30 | 上海蓝脉医疗科技有限公司 | Venous blood vessel support |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202875545U (en) * | 2012-10-22 | 2013-04-17 | 张喜成 | Special support for treating ilium total phlebostenosis |
| CN203089465U (en) * | 2013-01-31 | 2013-07-31 | 张喜成 | Prestress support used for treating narrow iliac vein |
| CN204671319U (en) * | 2015-04-21 | 2015-09-30 | 中国人民解放军第二军医大学 | A kind of conical support graft being applicable to the band distal end bare bracket of dissection of aorta |
| CN204814293U (en) * | 2015-07-10 | 2015-12-02 | 周朋利 | Iliac vein inclined plane support |
| CN105726174A (en) * | 2016-04-27 | 2016-07-06 | 苏州天鸿盛捷医疗器械有限公司 | Intravascular stent and preparation method and application thereof |
| US20170071768A1 (en) * | 2015-09-11 | 2017-03-16 | Cook Medical Technologies Llc | Variable radial stiffness and variable diameter intraluminal device |
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2018
- 2018-01-25 CN CN201810074229.8A patent/CN108175548A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202875545U (en) * | 2012-10-22 | 2013-04-17 | 张喜成 | Special support for treating ilium total phlebostenosis |
| CN203089465U (en) * | 2013-01-31 | 2013-07-31 | 张喜成 | Prestress support used for treating narrow iliac vein |
| CN204671319U (en) * | 2015-04-21 | 2015-09-30 | 中国人民解放军第二军医大学 | A kind of conical support graft being applicable to the band distal end bare bracket of dissection of aorta |
| CN204814293U (en) * | 2015-07-10 | 2015-12-02 | 周朋利 | Iliac vein inclined plane support |
| US20170071768A1 (en) * | 2015-09-11 | 2017-03-16 | Cook Medical Technologies Llc | Variable radial stiffness and variable diameter intraluminal device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223266A (en) * | 2018-08-20 | 2019-01-18 | 北京美迪微科技有限责任公司 | A kind of vein blood vessel bracket and its conveyer |
| CN112569027A (en) * | 2019-05-10 | 2021-03-30 | 上海蓝脉医疗科技有限公司 | Venous blood vessel support |
| CN112569027B (en) * | 2019-05-10 | 2023-09-19 | 上海蓝脉医疗科技有限公司 | Venous vascular stent |
| CN110613538A (en) * | 2019-10-24 | 2019-12-27 | 上海唯域医疗科技有限公司 | Blood vessel support capable of positioning |
| CN111789703A (en) * | 2020-08-07 | 2020-10-20 | 上海恩盛医疗科技有限公司 | Blood vessel stent construction method based on modularization |
| CN111789703B (en) * | 2020-08-07 | 2021-09-28 | 上海恩盛医疗科技有限公司 | Blood vessel stent construction method based on modularization |
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Application publication date: 20180619 |