CN102198025A - Stent graft - Google Patents
Stent graft Download PDFInfo
- Publication number
- CN102198025A CN102198025A CN201110114570XA CN201110114570A CN102198025A CN 102198025 A CN102198025 A CN 102198025A CN 201110114570X A CN201110114570X A CN 201110114570XA CN 201110114570 A CN201110114570 A CN 201110114570A CN 102198025 A CN102198025 A CN 102198025A
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- China
- Prior art keywords
- overlay film
- film frame
- ligation
- hard
- stent graft
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Abstract
The invention provides a stent graft, which is characterized in that: a hard ligating ring is arranged on the part, which is near a near end, of the stent graft; the stent graft is covered with a removable plastic film; a hard ligating ring is arranged on the part, which is near a far end, of the stent graft; the stent graft also comprises a guide rod which is removable and is used for guide the stent graft; and the guide rod has a hollow structure and is positioned in space formed by a metal frame.
Description
Technical field
The present invention relates to medical instruments field, be meant a kind of overlay film frame of band ligation ring of guiding especially.
Background technology
Dissection of aorta is clinical common a kind of acute fatal disease, for Stanford A type dissection of aorta, relates in particular to aorta bow step pathological changes patient, and operation is unique effective therapeutic modality as early as possible.The most extensive effective surgery mode of domestic and international application is grandson's krimer operation at present, promptly carries out aortic arch deployment by overlay film frame and changes+operation of support trunk.But it is very high that this art formula requires for patient's surgical technic, postoperative hemorrhage, and especially distal aorta is sewed up the difficult control of stomatorrhagia, and postoperative hemorrhage is many, and blood using amount is big, and mortality rate is higher.Move forward to ascending aorta end or aortic arch middle part as sewing up mouth, or can significantly reduce operating difficulty, shorten suture time, reduce the Deep Hypothermia Circulatory Arrest time, also help the postoperative hemostasis.But, at present in the sewing process that carries out overlay film frame and blood vessel, when the stitching of overlay film frame far-end finishes, and near-end is not finished when sewing up as yet, exist blood to flow into the slit between overlay film frame near-end and the blood vessel and flow to the risk of overlay film frame far-end, this will cause far-end to sew up stomatorrhagia, for operation has brought danger.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of overlay film frame, with the amount of bleeding in reduction overlay film frame and the vascular suture process, thereby has reduced operating difficulty.
Technical scheme 1: a kind of overlay film frame is provided with hard ligation ring in the part of the close near-end of overlay film frame.
By technical scheme 1 as can be known, in the position of the close near-end of overlay film frame hard ligation ring is set, outer ligation is supported as blood vessel.After distal aorta is sewed up and is finished, can be by the outer ligation of blood vessel, the far-end internal hemorrhage due to trauma of control overlay film frame causes the stitching stomatorrhagia by the false chamber of interlayer.Can obviously reduce operating difficulty, reduce the amount of bleeding in overlay film frame and the vascular suture process.
Technical scheme 2: according to technical scheme 1 described overlay film frame, described overlay film frame is covered with the plastic sheeting that can remove down outward.
By technical scheme 2 as can be known, overlay film frame is covered with the plastic sheeting that can remove down outward, can make that the conveying of overlay film frame is more level and smooth, easier overlay film frame is transported to definite position.
Technical scheme 3: according to technical scheme 1 described overlay film frame, also comprise: described overlay film frame is provided with hard ligation ring near the part of far-end.
By technical scheme 3 as can be known, in the position of the close far-end of overlay film frame hard ligation ring is set, outer ligation is supported as blood vessel.Can carry out at first distal aorta being carried out ligation in the sewing process to overlay film frame and blood vessel, with overlay film frame and vascular suture, can obviously reduce operating difficulty then, reduce the amount of bleeding in overlay film frame and the vascular suture process.
Technical scheme 4: according to technical scheme 1 or 2 described overlay film frames, described overlay film frame also comprises the guide bar that is used to guide overlay film frame that can remove down.
Technical scheme 5: according to technical scheme 4 described overlay film frames, described guide bar is a hollow structure, is positioned at the interior volume that metallic framework supports.
By technical scheme 4 and technical scheme 5 as can be known, guide bar is a hollow structure, and guide bar inside can hold seal wire to be passed, and in conjunction with the femoral artery seal wire that drives in the wrong direction, big overlay film frame accurately can be implanted the true intracavity of dissection of aorta in each positions such as ascending aorta, aortic arch.
Description of drawings
Fig. 1 is the overlay film frame structure chart that is in uncompressed state to be carried;
Fig. 2 implants aortal sketch map for overlay film frame of the present invention;
Fig. 3 enjoys the sketch map of the outer ligation of blood vessel to four bifurcated artificial blood vessels for overlay film frame of the present invention.
The reference numeral explanation
The 1-plastic sheeting; The 2-metallic framework; 3-ligation ring; 4-overlay film frame near-end; 5-overlay film frame far-end; The 6-aorta; The 7-guide bar; The 8-seal wire.
The specific embodiment
Specify the structure of overlay film frame provided by the invention below in conjunction with figure.
Fig. 1 is an overlay film frame structure chart to be carried, it is uncompressed state (being the nature release conditions), as can be seen from Figure 1, the overlay film frame that the embodiment of the invention provides, the metallic framework 2 outer overlay films (not shown) that are covered with that are used for support blood vessels, form overlay film frame, this overlay film skin is provided with plastic sheeting 1, puts hard ligation ring 3 at overlay film frame near-end 4 seams.Overlay film frame integral body is straight cylinder or gradually thin cylindrical shape, and the diameter of overlay film frame far-end 5 can be identical with the diameter 4 of overlay film frame near-end, can also be less than the diameter of overlay film frame near-end 4.
Overlay film frame is covered with plastic sheeting 1 outward, can reduce the friction of overlay film frame and blood vessel, makes that the conveying of overlay film frame is more level and smooth, easier overlay film frame is transported to definite position.
Be equipped with hard ligation ring 3 at overlay film frame near-end 4, as the support of the outer ligation of blood vessel.After the far-end for the treatment of aorta 6 is sewed up and to be finished, before near-end is sewed up and is finished, can be at these hard ligation ring 3 places, temporarily seal slit between overlay film frame near-end and the blood vessel by the outer ligation of blood vessel, avoid blood to flow into this slit, promptly avoided blood internal hemorrhage due to trauma, thereby reduced the hemorrhage risk of overlay film frame far-end 5 far-ends stitching mouth by the false chamber of interlayer.When carrying out at these hard ligation ring 3 places outside the blood vessel after the ligation,, then can remove the outer ligation of described blood vessel with behind overlay film frame near-end 4 and the vascular suture.
In addition, be understood that, can also be further a hard ligation ring 3 also be set at the far-end of overlay film frame 5, like this after the overlay film frame conveying puts in place and discharges, then can carry out ligation outside the blood vessel at hard ligation ring 3 places of overlay film frame 5 near-ends and far-end earlier, so that this overlay film frame can use immediately, and avoid the blood internal hemorrhage due to trauma in the false chamber of interlayer, after the overlay film frame two ends all finish with vascular suture, got rid of ligation outside the blood vessel at two ends afterwards again.
The present invention all has not a particular requirement for the material of the suture of making ligation ring 3 and the material of hard ligation ring 3, suture can use ordinary suture, the material of ligation ring 3 can be medical alloy, as niti-shaped memorial alloy, super alloy, cobalt chromium dynamax, the 316L medical stainless steel alloy etc. of playing of NiTi.
Fig. 2 implants aortal sketch map for overlay film frame of the present invention, as can be seen from Figure 2, the conveyer device of the overlay film frame that the embodiment of the invention provides comprises the guide bar 7 that is used to guide overlay film frame, guide bar 7 is a hollow structure, is positioned at the interior volume that metallic framework 2 supports.Guide bar 7 is a hollow structure, and guide bar 7 inside can hold seal wire 8 to be passed, and in conjunction with the retrograde seal wire 8 of femoral artery, big overlay film frame accurately can be implanted the true intracavity of aorta 6 interlayers in each positions such as ascending aorta, aortic arch.
The material of metallic framework 2 can be medical alloy, as niti-shaped memorial alloy, super alloy, cobalt chromium dynamax, the 316L medical stainless steel alloy etc. of playing of NiTi.
Fig. 3 for overlay film frame of the present invention to the sketch map that four bifurcated artificial blood vessels enjoy the outer ligation of blood vessel, as shown in Figure 3, when needs are implanted aorta with above-mentioned overlay film frame, can adopt following mode:
At first, measure CT (computer topography) or nuclear magnetic resonance image before the operation, clear and definite aortic arch portion diameter, the overlay film frame of selected corresponding size.
Then, selected overlay film frame is packed into the sheath pipe of carrier.
Afterwards, when undergoing surgery, adopt one-sided femoral artery otch, and will add stiff guide wire 8 and send into guide bar 7; Utilize guide bar 7 that carrier is sent into aorta 6 again.
When carrier arrives descending aorta, will remove under its epitheca pipe, with the plastic sheeting 1 of removing the overlay film frame outside at present, discharge overlay film frame.
The blood vessel wall of overlay film frame far-end 5 and aorta 6 can be carried out ligation outside the blood vessel at described hard ligation ring 3 places after sewing up and finishing, and has promptly avoided causing by the blood internal hemorrhage due to trauma in the false chamber of interlayer the stitching stomatorrhagia of far-end 5.
At last, after overlay film frame 4 near-ends and vascular suture are finished, then can remove the outer ligation of blood vessel at described hard ligation ring 3 places.
Use overlay film frame provided by the invention, can obviously reduce operating difficulty, reduce the postoperative hemorrhage amount.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an overlay film frame is characterized in that, in the part of the close near-end of overlay film frame hard ligation ring is set.
2. overlay film frame according to claim 1 is characterized in that, described overlay film frame is covered with the plastic sheeting that can remove down outward.
3. overlay film frame according to claim 1 is characterized in that, also comprises: described overlay film frame is provided with hard ligation ring near the part of far-end.
4. overlay film frame according to claim 1 and 2 is characterized in that, described overlay film frame also comprises the guide bar that is used to guide overlay film frame that can remove down.
5. overlay film frame according to claim 4 is characterized in that described guide bar is a hollow structure, is positioned at the interior volume that metallic framework supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110114570XA CN102198025A (en) | 2011-05-04 | 2011-05-04 | Stent graft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110114570XA CN102198025A (en) | 2011-05-04 | 2011-05-04 | Stent graft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102198025A true CN102198025A (en) | 2011-09-28 |
Family
ID=44659187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110114570XA Pending CN102198025A (en) | 2011-05-04 | 2011-05-04 | Stent graft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102198025A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105853033A (en) * | 2016-03-23 | 2016-08-17 | 北京微创介入医疗装备有限公司 | Integrated stent for repairing aortic blood vessel dissection and stent conveying system |
| CN113499164A (en) * | 2021-07-12 | 2021-10-15 | 中国医学科学院阜外医院 | Elephant trunk support assembly capable of blocking blood and elephant trunk support implantation system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001001887A1 (en) * | 1999-07-02 | 2001-01-11 | Scimed Life Systems, Inc. | Improved composite vascular graft |
| CN2453958Y (en) * | 2000-11-30 | 2001-10-17 | 李潮 | Arterial intracavitary carriage |
| WO2001087371A2 (en) * | 2000-05-12 | 2001-11-22 | Advanced Bio Prosthetic Surfaces, Ltd. | Self-supporting laminated films, structural materials and medical devices |
| CN2526019Y (en) * | 2001-11-21 | 2002-12-18 | 同济大学 | Blocking apparatus for patent arterial duct and arteriovenous fistula |
| CN1565393A (en) * | 2003-06-12 | 2005-01-19 | 深圳市先健科技股份有限公司 | Aorta tectorial supporting stand for preventing shift |
| CN2933337Y (en) * | 2006-07-26 | 2007-08-15 | 维科医疗器械(苏州)有限公司 | Arteria covering membrane supporter capable of positioning release accurately and its conveyor |
-
2011
- 2011-05-04 CN CN201110114570XA patent/CN102198025A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001001887A1 (en) * | 1999-07-02 | 2001-01-11 | Scimed Life Systems, Inc. | Improved composite vascular graft |
| WO2001087371A2 (en) * | 2000-05-12 | 2001-11-22 | Advanced Bio Prosthetic Surfaces, Ltd. | Self-supporting laminated films, structural materials and medical devices |
| CN2453958Y (en) * | 2000-11-30 | 2001-10-17 | 李潮 | Arterial intracavitary carriage |
| CN2526019Y (en) * | 2001-11-21 | 2002-12-18 | 同济大学 | Blocking apparatus for patent arterial duct and arteriovenous fistula |
| CN1565393A (en) * | 2003-06-12 | 2005-01-19 | 深圳市先健科技股份有限公司 | Aorta tectorial supporting stand for preventing shift |
| CN2933337Y (en) * | 2006-07-26 | 2007-08-15 | 维科医疗器械(苏州)有限公司 | Arteria covering membrane supporter capable of positioning release accurately and its conveyor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105853033A (en) * | 2016-03-23 | 2016-08-17 | 北京微创介入医疗装备有限公司 | Integrated stent for repairing aortic blood vessel dissection and stent conveying system |
| CN105853033B (en) * | 2016-03-23 | 2017-10-27 | 北京微创介入医疗装备有限公司 | One repairs the support and stent delivery system of aorta vessel interlayer |
| CN113499164A (en) * | 2021-07-12 | 2021-10-15 | 中国医学科学院阜外医院 | Elephant trunk support assembly capable of blocking blood and elephant trunk support implantation system |
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| PB01 | Publication | ||
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Application publication date: 20110928 |