CN204379488U - Endovascular stent for abdominal aorta - Google Patents
Endovascular stent for abdominal aorta Download PDFInfo
- Publication number
- CN204379488U CN204379488U CN201420865954.4U CN201420865954U CN204379488U CN 204379488 U CN204379488 U CN 204379488U CN 201420865954 U CN201420865954 U CN 201420865954U CN 204379488 U CN204379488 U CN 204379488U
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- branch
- reservation
- long
- abdominal aorta
- endovascular stent
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Abstract
This utility model relates to medical instruments field, particularly relates to a kind of endovascular stent for abdominal aorta, and it comprises the main body of three-port structure, and described main body is provided with the reservation branch be communicated with main body; The quantity of described reservation branch is one or more, arranges a reservation branch and can retain side internal iliac artery blood flow, arranges two reservation branches and can retain bilateral internal iliac blood flow.The disclosed branch that retains of this utility model can be used for retaining internal iliac artery blood flow, retain branch by with enter the small-sized overlay film frame of hypogastric extension and be connected and realize retaining internal iliac artery blood flow, meet normal hemodynamics direction, long-term effect is certainly good than loudspeaker lower limb technology, sandwich technology or periscope technology.
Description
Technical field
This utility model relates to medical instruments field, particularly relates to a kind of endovascular stent for abdominal aorta.
Background technology
Aortic aneurysm is angiopathy common clinically, mostly occurs with it old people, and this disease easily causes aortic aneurysm to break, and causes great threat to the life of patient.General surgical operation was once considered to treat aortal unique method, but the method surgical risk is very big.
Along with the development of modern medical techniques, utilize Minimally Invasive Surgery by overlay film frame implant into body, the treatment means for the treatment of aortic aneurysm and dissecting aneurysm is more and more used.Artificial overlay film frame compresses into conveying releasing device by this Therapeutic Method, guides and sends into human body, and conveying releasing device is transported to pathological changes aorta, then discharge overlay film frame along the seal wire implanted in advance.The overlay film of the overlay film frame after release covers aortal lesion, makes aortic aneurysm form thrombosis gradually, thus alleviates the compressing of aortic aneurysm to surrounding tissue, organ, blood vessel wall, and eliminates the danger causing massive hemorrhage because aortic aneurysm breaks.Overlay film frame is attached on aorta tube wall under elastic force effect own, and overlay film produces new blood channel in lesion vessels.
As shown in Figure 1, the overlay film frame used in existing abdominal aortic aneurysm intracavitary therapy is commonly " people " font (being also Y shape) three-port structure, it comprises a master and props up 101 and be connected to Ge Chang branch 102 and the Ge Duan branch 103 of far-end of main 101, short branch be also furnished with one section with short branch refute connect stretch into side common iliac artery refute the section of connecing overlay film frame 104.
Because abdominal aortic aneurysm involves the much of side or bilateral common iliac artery.Present usual way is that the short leg distal end using loudspeaker lower limb namely to expand is placed in common iliac artery crotch, in the hope of at least retaining side internal iliac artery.But some patients's bilateral common iliac artery is got involved, or common iliac artery diameter is greater than 27-30mm (maximum gauge of existing loudspeaker lower limb), or abdominal aortic aneurysm is involved common iliac artery and become pyriform to cause loudspeaker lower limb to fix.And the continuation that loudspeaker lower limb cannot stop common iliac artery tumor expands, and long-term effect is unsatisfactory.
Summary of the invention
The purpose of this utility model is to provide a kind of and retains internal iliac artery blood flow and the desirable endovascular stent for abdominal aorta of long-term effect.
Above-mentioned purpose is achieved by the following technical solution:
A kind of endovascular stent for abdominal aorta, comprise the main body of three-port structure, described main body is provided with the reservation branch be communicated with main body.
The disclosed branch that retains of this technical scheme can be used for retaining internal iliac artery blood flow, retain branch by with enter the small-sized overlay film frame of hypogastric extension and be connected and realize retaining internal iliac artery blood flow, meet normal hemodynamics direction, long-term effect is certainly good than loudspeaker lower limb technology, sandwich technology or periscope technology.
Technique scheme is improved further by following technical measures:
The quantity of described reservation branch is one or more, arranges a reservation branch and can retain side internal iliac artery blood flow, arranges two reservation branches and can retain bilateral internal iliac blood flow.
Described main body is in " people " font, and described main body comprises main, long branch and short branch, and the length of described long branch is greater than the length of described short branch, and the near-end of described long branch and the near-end of short branch are all connected with the far-end of main.
Described reservation branch is located at the inner side of long branch, is convenient to release.
The near-end of described reservation branch is connected with the inner side of long branch.
The near-end of described reservation branch, near the near-end of long branch, is convenient to release.
The diameter of described reservation branch is 4mm to 6mm, and length is 2cm to 3cm.
The near-end of described reservation branch and the near-end of long branch, at a distance of 0 to 1.5cm, are convenient to release.
The far-end of described reservation branch and the near-end of reservation branch are equipped with the labelling for identifying, be convenient to retain the far-end of branch position and with enter the small-sized overlay film frame of hypogastric extension and be connected, the near-end be convenient to retaining branch positions, and in particular cases can use turn or this reservation branch of the light shutoff of other overlay film frame.
Described master props up, long branch, short branch and retain branch by skeleton and overlay film composition.
This utility model compared with prior art tool has the following advantages:
1, this utility model meets normal hemodynamics direction, and long-term effect is affirmed than loudspeaker lower limb technology, sandwich technology, and periscope technology is good;
2, this utility model structure is simple, easily manufactures, and implementation and operation is convenient, and price is lower;
3, the near-end of reservation branch of the present utility model is arranged on the near-end near long branch, shorter than the short branch location of offside and diameter is less, be in abdominal aortic aneurysm tumor body the widest part, there is not the problem of release difficulty, a subbranch can process left side or right side pathological changes;
4, this utility model dispose procedure is very simple, after general master props up release, branch's ejection is retained and long branch not yet discharges during long branch release 3-4cm, the seal wire from top to down of being originated by brachial artery is very easy to enter and retains branch, enter internal iliac artery of getting involved again, then, small-sized for extension overlay film frame easily can be connected the internal iliac artery retaining branch and get involved by brachial artery sheath, thus the blood supply of very effective reservation internal iliac artery;
5, this utility model can use reservation branch bank lumbar arteries thromboembolism to reduce by II type internal hemorrhage due to trauma if desired, also can inject turn etc. by retaining branch toward tumor intracavity, promoting tumor chamber obturation;
6, this utility model can use turn or this reservation branch of the light shutoff of other overlay film frame under special circumstances;
7, this utility model can arrange two reservation branches if desired to retain bilateral internal iliac;
8, by the support of the good bandabilities such as application Viabahn support, can bend by tumor intracavity, length easily adapts to.
Accompanying drawing explanation
Fig. 1 shows the structural representation of existing endovascular stent for abdominal aorta;
Fig. 2 shows the structural representation of endovascular stent for abdominal aorta of the present utility model, and the quantity wherein retaining branch is one;
Fig. 3 shows another structural representation of endovascular stent for abdominal aorta of the present utility model, and the quantity wherein retaining branch is two;
Fig. 4 shows the ventral aorta schematic diagram of pathological changes;
Fig. 5 shows Application Example schematic diagram of the present utility model.
Reference numeral: 1 retains branch, 11 retains the near-end of branch, the far-end of 12 reservation branches; The near-end of 2 main, 21 main, the far-end of 22 main; The near-end of 3 long branches, 31 long branches, the far-end of 32 long branches; The near-end of 4 short branches, 41 short branches, the far-end of 42 short branches; 5 refute the section of connecing overlay film frame; 6 ventral aortas, 61 abdominal aortic aneurysm tumor bodies; 7 common iliac arterys; 8 internal iliac artery; The small-sized overlay film frame of 9 extension.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.Near-end described in literary composition refers to the one end near cardiac position, and described far-end refers to the one end away from cardiac position.
As shown in Figures 2 to 5, a kind of endovascular stent for abdominal aorta, comprise the main body in " people " font three-port structure, described main body is provided with the reservation branch 1 be communicated with main body.
The quantity of described reservation branch 1 is one or more, such as, can arrange two and retain branch to retain bilateral internal iliac.In accompanying drawing, wherein figure 2 show and arrange a reservation branch, Fig. 2 shows and arranges two reservation branches.
Described main body comprises main 2, long branch 3 and short branch 4, the length of described long branch 3 is greater than the length of described short branch 4, shown main 2 comprises the near-end 21 of main and the far-end 22 of main, shown long branch 3 comprises the near-end 31 of long branch and the far-end 32 of long branch, shown short branch 4 comprises the near-end 41 of short branch and the far-end 42 of short branch, the near-end 11 retaining branch and the far-end 12 retaining branch are drawn together by described reservation branch 1, and the near-end 31 of described long branch and the near-end 41 of short branch are all connected with the far-end 22 of main.Described short branch be also furnished with one section with short branch refute connect stretch into side common iliac artery refute the section of connecing overlay film frame 5.Fig. 4 shows the ventral aorta schematic diagram of pathological changes, and Fig. 4 shows and comprises ventral aorta 6, the common iliac artery 7 of both sides and the internal iliac artery 8 of both sides.
Described reservation branch 1 is located at the inner side of long branch 3.The inner side of described long branch 3 is relative with the inner side of short branch 4.
The near-end 11 of described reservation branch is connected with the inner side of long branch 3.
The described near-end 31 of near-end 11 near long branch retaining branch.The described far-end 42 inclination extension of far-end 12 towards short branch retaining branch, and the far-end 12 retaining branch does not exceed the far-end 42 of short branch, is in abdominal aortic aneurysm tumor body 61 the widest part, does not exist and discharge difficult problem after whole reservation branch 1 is discharged.After main body release, between the region that the far-end 12 retaining branch limits in the inner side of long branch 3 and the inner side of short branch 4.
As shown in Figure 5, by the far-end 12 retaining branch with enter the small-sized overlay film frame 9 of hypogastric extension and be connected, thus very effective reservation internal iliac artery blood supply, wherein, Fig. 5 merely illustrates one and retains branch.
The diameter of described reservation branch 1 is 4mm to 6mm, and length is 2cm to 3cm.
The near-end 11 of described reservation branch and the near-end 31 of long branch are at a distance of 0 to 1.5cm, and preferably, the near-end 11 of described reservation branch and the near-end 31 of long branch are at a distance of 1cm.
The far-end 12 of described reservation branch and the near-end 11 of reservation branch are equipped with the labelling for identifying.The labelling that the far-end of described reservation branch is provided with can be tinsel suture labelling, and the labelling that the near-end of described reservation branch is provided with can be metal marker.
Described master props up 2, long branch 3, short branch 4 and retain branch 1 by skeleton and overlay film composition, and overlay film covers on skeleton.
In the present embodiment, the inner side that reservation branch is arranged at long branch is preferred embodiment, such as, but retain branch and do not limit to the inner side being arranged at long branch, reservation branch can be arranged on master and props up upper or be arranged in short branch or be arranged on other position of long branch.
Claims (10)
1. an endovascular stent for abdominal aorta, comprises the main body of three-port structure, it is characterized in that: described main body is provided with the reservation branch be communicated with main body.
2. endovascular stent for abdominal aorta according to claim 1, is characterized in that: the quantity of described reservation branch is one or more.
3. endovascular stent for abdominal aorta according to claim 1 and 2, it is characterized in that: described main body is in " people " font, described main body comprises main, long branch and short branch, the length of described long branch is greater than the length of described short branch, and the near-end of described long branch and the near-end of short branch are all connected with the far-end of main.
4. endovascular stent for abdominal aorta according to claim 3, is characterized in that: described reservation branch is located at the inner side of long branch.
5. endovascular stent for abdominal aorta according to claim 4, is characterized in that: the near-end of described reservation branch is connected with the inner side of long branch.
6. endovascular stent for abdominal aorta according to claim 5, is characterized in that: the described near-end of near-end near long branch retaining branch.
7. endovascular stent for abdominal aorta according to claim 5, is characterized in that: the diameter of described reservation branch is 4mm to 6mm, and length is 2cm to 3cm.
8. endovascular stent for abdominal aorta according to claim 6, is characterized in that: the near-end of described reservation branch and the near-end of long branch are at a distance of 0 to 1.5cm.
9. endovascular stent for abdominal aorta according to claim 5, is characterized in that: the far-end of described reservation branch and the near-end of reservation branch are equipped with the labelling for identifying.
10. endovascular stent for abdominal aorta according to claim 3, is characterized in that: described master props up, long branch, short branch and retain branch by skeleton and overlay film composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865954.4U CN204379488U (en) | 2014-12-30 | 2014-12-30 | Endovascular stent for abdominal aorta |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865954.4U CN204379488U (en) | 2014-12-30 | 2014-12-30 | Endovascular stent for abdominal aorta |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204379488U true CN204379488U (en) | 2015-06-10 |
Family
ID=53352249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420865954.4U Expired - Fee Related CN204379488U (en) | 2014-12-30 | 2014-12-30 | Endovascular stent for abdominal aorta |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204379488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104546221A (en) * | 2014-12-30 | 2015-04-29 | 胡锡祥 | Aorta abdominalis covered stent |
-
2014
- 2014-12-30 CN CN201420865954.4U patent/CN204379488U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104546221A (en) * | 2014-12-30 | 2015-04-29 | 胡锡祥 | Aorta abdominalis covered stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20171230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |