CN205286609U - Interbedded super gentle anti tectorial membrane support of rolling over of treatment aorta - Google Patents
Interbedded super gentle anti tectorial membrane support of rolling over of treatment aorta Download PDFInfo
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- CN205286609U CN205286609U CN201521003321.3U CN201521003321U CN205286609U CN 205286609 U CN205286609 U CN 205286609U CN 201521003321 U CN201521003321 U CN 201521003321U CN 205286609 U CN205286609 U CN 205286609U
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- overlay film
- film frame
- aorta
- blood vessel
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Abstract
The utility model discloses an interbedded super gentle anti tectorial membrane support of rolling over of treatment aorta who belongs to medical instrument technical field. The tectorial membrane support comprises memory alloy support ring sum artificial blood vessel to connect through surgical suture, according to aorta intermediate layer pathological change characteristics, the tectorial membrane support can add establishes the naked support of distal end to cross over the interior diaphragm of pathological change, disperse the pressure of internal diaphragm, prevent the stifled branch of mistake blood vessel. The tectorial membrane support is exclusively used in to be repaired in the thoracic aorta interlayer cavity, can be better comply with the complicated intracavity structure of aorta intermediate layer, effectively seal the inner membrance cut, fragile interior diaphragm between real, the false chamber of better protection prevents the new cut of sending out due to the excessive expansion of support distal end, support distal end complication significantly reduces.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly to a kind of super soft anti-folding overlay film frame treating dissection of aorta.
Background technology
Dissection of aorta is one of very dangerous fatal disease. Clinical research shows, for StanfordB type dissection of aorta, the survival rate of expectant treatment 4-5 is 60%-80%, and the expectant treatment survival rate of 10 years is 40%-45%. And StanfordB type dissection of aorta open surgery treatment mortality rate is significantly high, about 35%-75%. If the accumulative important blood vessels branch of dissection of aorta causes internal organs ischemia, its mortality rate is higher.
Upper world end of the nineties, overlay film frame intracavity is repaired (TEVAR) technology and is applied to the treatment of Type B dissection of aorta by Nienaber and Dake first. Application along with TEVAR technology, hence it is evident that improving the therapeutic effect of Aortic Dissection, mortality rate is substantially reduced. Development through more than ten years, constantly perfect along with the improvement of support and interventional technique, the application in Type B aortic dissection of the TEVAR technology is more and more extensive, and demonstrate huge superiority, achieve satisfied nearly mid-term effects, become the method that treatment Aortic Dissection is indispensable.
Owing to interior diaphragm and the blood vessel wall of Aortic Dissection are very fragile, and the mucosal structure of interlayer is extremely complex, there is multiple important branch blood vessel in descending aorta, the support of set specification can not adapt to the lesion characteristic of all dissections of aorta completely, conventional overlay film frame is applied to expose increasing problem when dissection of aorta intracavity is repaired, chamber as true in support specification and interlayer size is not mated and is caused that far-end overdistension causes a new cut, has ultimately resulted in higher re-treatm ent rate and mortality risk.
Utility model content
This utility model is for the shortcoming existed in prior art, it is provided that a kind of super soft anti-folding overlay film frame treating dissection of aorta.
To achieve these goals, the technical scheme that this utility model is taked is as follows:
A kind of super soft anti-folding overlay film frame treating dissection of aorta, described overlay film frame is made up of memory alloy stent ring 1 and artificial blood vessel 2, and is connected by suture;Section 1 memory alloy stent ring 1 only one end of described overlay film frame near-end is sewn on artificial blood vessel 2, and the naked leakage of remainder, outside artificial blood vessel 2, forms near-end bare bracket; Before near-end, 2-3 saves the overlapped 30%-50% of memory alloy stent ring 1, is sewn to the inner side of artificial blood vessel 2; The overlapped 10%-40% of remainder memory alloy stent ring 1, is sewn to the outside of artificial blood vessel 2, and the two ends of this part memory alloy stent ring 1 are not sewn on artificial blood vessel 2, in free state.
When the far-end of dissection of aorta branches off blood vessel, in order to prevent stifled branch vessel by mistake, the far-end of described overlay film frame adds the far-end bare bracket 8 of 20-40mm length.
More than the little 0.05-0.15mm of diameter of the memory alloy stent ring 1 on overlay film frame or wave number 2-4 of memory alloy stent ring 1 on described far-end bare bracket 8, to obtain bigger compliance.
The length of described overlay film frame is 40-240mm, and proximal diameter 3 is 20-50mm, and distal diameter 7 is 10-38mm, and taper ratio is 30%-60%.
The 40%-70% that far-end support force is proximal support power of described overlay film frame.
Described overlay film frame can be used alone in dissection of aorta intracavity reparation, it is possible to the far-end being socketed on straight barrel type or tapered type overlay film frame uses.
Advantage of the present utility model is:
1, memory alloy stent ring 1 degree of overlapping of described overlay film frame near-end is big, improves the rounding form of near-end and adherent ability, effectively prevents I type internal hemorrhage due to trauma; The two ends of all the other memory alloy stent rings 1 are free state and overlapped, make overlay film frame entirety stress equalization, improve compliance and the bend resistance ability of overlay film frame, optimize overlay film frame form after dissection of aorta intracavity launches, it is to avoid cause that owing to aorta is excessively tortuous overlay film frame is killed folding and caused restenosis.
2, the flexibility of overlay film frame far-end is designed to reduce the overlay film frame support force to dissection of aorta far-end, reduces the compressing stripping off interior diaphragm. Additionally, the far-end bare bracket 8 increased, the far-end of this overlay film frame is made to cross over to Normal aorta wall, the dispersion expansionary force to far-end interior diaphragm.
3, big vertebra shape structural design, it is possible to better comply with the tapered die cavity inner structure of dissection of aorta, reduces the amplification degree of rack far end, effectively prevents because rack far end overdistension, inner membrance tear the far-end complication caused.
Accompanying drawing explanation
Fig. 1: the structural representation of Conventional coverlay film support.
Fig. 2: the structural representation of overlay film frame of the present utility model.
Fig. 3: Conventional coverlay film intravascular stent and this utility model prop up the bend resistance ability contrast schematic diagram of overlay film frame. Wherein, a () is schematic diagram after Conventional coverlay film intravascular stent 90-degree bent, b () is its minimum cross-section A-A schematic diagram after Conventional coverlay film intravascular stent 90-degree bent, after bending, cross-sectional area is less than the 50% of former cross-sectional area; C () is schematic diagram after this utility model overlay film frame 90-degree bent, (d) is its minimum cross-section B-B schematic diagram after this utility model overlay film frame 90-degree bent, and after bending, cross-sectional area is more than the 80% of former cross-sectional area.
Fig. 4: this utility model memory alloy stent ring 1 structure chart. Wherein, (a) conventional string diameter support ring, (b) filament footpath support ring, (c) many wave numbers support ring.
Fig. 5: this utility model overlay film frame is support force change schematic diagram radially.
Detailed description of the invention
This utility model provides a kind of super soft anti-folding overlay film frame treating dissection of aorta, below in conjunction with drawings and Examples, this utility model is described further.
Fig. 2 show a kind of super soft anti-folding overlay film frame schematic diagram treating dissection of aorta.Wherein, 1-memory alloy stent ring, 2-artificial blood vessel, 3-proximal diameter, 4-stitch points, 5-near-end overlapping region, 6-far-end overlapping region, 7-distal diameter, 8-far-end bare bracket.
Embodiment 1
A kind of super soft anti-folding overlay film frame treating dissection of aorta, is formed by connecting by memory alloy stent ring 1 and artificial blood vessel 2. Overlay film frame near-end Section 1 memory alloy stent ring 1 only one end is sewn on artificial blood vessel 2, and the naked leakage of remainder is outside artificial blood vessel 2; Before near-end, 2 joint memory alloy stent ring 1 overlap 40%, is sewn to the inwall of artificial blood vessel 2; Remainder memory alloy stent ring 1 overlap 20%, is sutured in the outer wall of artificial blood vessel 2, and these part memory alloy stent ring 1 two ends are not sewn on artificial blood vessel 2, in free state, improve compliance and the bend resistance ability of support.
Overlay film frame overall structure is big taper, and memory alloy stent ring 1 adopts conventional string diameter support ring (as shown in fig. 4 a), and the length of near-end Section 1 memory alloy stent ring 1 is 15mm, and remaining overlay film segment length is 120mm; Its proximal diameter 3 is 34mm, and distal diameter 7 is 20mm, and tapering is 41%, and steep-taper and flexible design have better protective effect for dissection of aorta far-end interior diaphragm.
When the far-end of dissection of aorta branches off blood vessel, in order to prevent stifled branch vessel by mistake, overlay film frame adds the far-end bare bracket 8 of 20-40mm. The structure of the memory alloy stent ring 1 on far-end bare bracket 8 is filament footpath support ring or many wave numbers support ring (such as Fig. 4 b, 4c), to obtain softer radial direction support force.
Embodiment 2
A kind of super soft anti-folding overlay film frame treating dissection of aorta, is formed by connecting by memory alloy stent ring 1 and artificial blood vessel 2. Overlay film frame near-end Section 1 memory alloy stent ring 1 only one end is sewn on artificial blood vessel 2, and the naked leakage of remainder is outside artificial blood vessel 2; Before overlay film frame near-end, 3 joint memory alloy stent ring 1 overlap 30%, is sutured in the inwall of artificial blood vessel 2; Remainder memory alloy stent ring 1 overlap 20%, is sutured in the outer wall of artificial blood vessel 2, and memory alloy stent ring 1 two ends of this part are not sewn on artificial blood vessel 2, in free state, improves compliance and the bend resistance ability of overlay film frame.
Support overall structure is big taper, memory alloy stent ring 1 adopts conventional string diameter support ring (as shown in fig. 4 a), the length of near-end Section 1 memory alloy stent ring 1 is 17mm, remaining overlay film segment length is 180mm, its proximal diameter 3 is 32mm, distal diameter 7 is 22mm, tapering 31%. The length of the far-end bare bracket 8 added is 30mm, and the structure of the memory alloy stent ring 1 on far-end bare bracket 8 is filament footpath support ring (such as Fig. 4 b).
Embodiment 3
The dissection of aorta special stand of a kind of super soft anti-folding is formed by connecting by memory alloy stent ring 1 and artificial blood vessel 2. Overlay film frame near-end Section 1 memory alloy stent ring 1 only one end is sewn on artificial blood vessel 2, and the naked leakage of remainder is outside artificial blood vessel 2; 2 joint memory alloy stent ring 1 overlap 40% before overlay film frame near-end, it is sutured in the inwall of artificial blood vessel 2, remainder memory alloy stent ring 1 overlaps 10%, it is sutured in the outer wall of artificial blood vessel 2, and these part memory alloy stent ring 1 two ends are not sewn on artificial blood vessel 2, in free state, improve compliance and the bend resistance ability of support.
Support overall structure is big taper, and memory alloy stent ring 1 adopts conventional string diameter support ring (as shown in fig. 4 a), and the length of Section 1 memory alloy stent ring 1 is 17mm, remaining overlay film segment length is 220mm, its proximal diameter 3 is 28mm, and distal diameter 7 is 12mm, and tapering is 57%.The length of the far-end bare bracket 8 added is 20mm, and the structure of the memory alloy stent ring 1 on far-end bare bracket 8 is many wave numbers support ring (such as Fig. 4 c).
Embodiment 4
Often there is multiple cut in dissection of aorta patient, after near-end cut is blocked, some patients even can break because the existence of far-end cut causes that false chamber continues to expand. In order to effectively process far-end cut, when overlay film frame is implanted while considering the good grappling of near-end, far-end also should select stable, suitable anchor region. If single overlay film frame can not meet when requiring simultaneously, the overlay film frame in embodiment 1, embodiment 2 or embodiment 3 can be arranged in pairs or groups and use, to obtain better therapeutic effect.
Examples detailed above is not in order to limit this utility model, all within principle of the present utility model, any amendment of making, equivalent replacement, improvement etc., should be included in protection domain of the present utility model.
Claims (5)
1. the super soft anti-folding overlay film frame treating dissection of aorta, it is characterised in that described overlay film frame is made up of memory alloy stent ring (1) and artificial blood vessel (2), and is connected by suture; Section 1 memory alloy stent ring (1) only one end of described overlay film frame near-end is sewn on artificial blood vessel (2), and the naked leakage of remainder at artificial blood vessel (2) outward, forms near-end bare bracket; Before near-end, 2-3 saves memory alloy stent ring (1) overlapped 30%-50%, is sewn to the inner side of artificial blood vessel (2); Remainder memory alloy stent ring (1) overlapped 10%-40%, it is sewn to the outside of artificial blood vessel (2), and the two ends of this part memory alloy stent ring (1) are not sewn on artificial blood vessel (2), in free state.
2. a kind of super soft anti-folding overlay film frame treating dissection of aorta according to claim 1, it is characterized in that, when the far-end of dissection of aorta branches off blood vessel, in order to prevent stifled branch vessel by mistake, the far-end of described overlay film frame adds the far-end bare bracket (8) of 20-40mm length.
3. a kind of super soft anti-folding overlay film frame treating dissection of aorta according to claim 2, it is characterized in that, more than the little 0.05-0.15mm of diameter of the memory alloy stent ring (1) on overlay film frame or wave number 2-4 of the memory alloy stent ring (1) on described far-end bare bracket (8).
4. a kind of super soft anti-folding overlay film frame treating dissection of aorta according to claim 1, it is characterized in that, the length of described overlay film frame is 40-240mm, and proximal diameter (3) is 20-50mm, distal diameter (7) is 10-38mm, and taper ratio is 30%-60%.
5. a kind of super soft anti-folding overlay film frame treating dissection of aorta according to claim 1, it is characterised in that the 40%-70% that far-end support force is proximal support power of described overlay film frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521003321.3U CN205286609U (en) | 2015-12-07 | 2015-12-07 | Interbedded super gentle anti tectorial membrane support of rolling over of treatment aorta |
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| CN201521003321.3U CN205286609U (en) | 2015-12-07 | 2015-12-07 | Interbedded super gentle anti tectorial membrane support of rolling over of treatment aorta |
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| CN205286609U true CN205286609U (en) | 2016-06-08 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997298A (en) * | 2016-06-28 | 2016-10-12 | 黄连军 | Aortic stent |
| CN106214287A (en) * | 2016-08-24 | 2016-12-14 | 杨威 | Dissection of aorta operation overlay film frame, conveyer device and using method |
| TWI615135B (en) * | 2016-11-30 | 2018-02-21 | 財團法人金屬工業研究發展中心 | Intravascular stent |
| CN109464212A (en) * | 2018-12-14 | 2019-03-15 | 东莞先健畅通医疗有限公司 | Overlay film frame |
| CN109803590A (en) * | 2016-10-10 | 2019-05-24 | 魏峥 | Has the blood catheter of bracket |
-
2015
- 2015-12-07 CN CN201521003321.3U patent/CN205286609U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997298A (en) * | 2016-06-28 | 2016-10-12 | 黄连军 | Aortic stent |
| CN106214287A (en) * | 2016-08-24 | 2016-12-14 | 杨威 | Dissection of aorta operation overlay film frame, conveyer device and using method |
| CN109803590A (en) * | 2016-10-10 | 2019-05-24 | 魏峥 | Has the blood catheter of bracket |
| TWI615135B (en) * | 2016-11-30 | 2018-02-21 | 財團法人金屬工業研究發展中心 | Intravascular stent |
| CN109464212A (en) * | 2018-12-14 | 2019-03-15 | 东莞先健畅通医疗有限公司 | Overlay film frame |
| CN109464212B (en) * | 2018-12-14 | 2022-04-05 | 深圳市先健畅通医疗有限公司 | Covered stent |
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Effective date of registration: 20160714 Address after: 102200 Changping District super Road, Beijing, No. 33 Patentee after: GRINM ADVANCED MATERIALS CO., LTD. Patentee after: Medical devices (Beijing) Co., Ltd. Address before: 102200 Changping District super Road, Beijing, No. 33 Patentee before: GRINM ADVANCED MATERIALS CO., LTD. |
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| TR01 | Transfer of patent right | ||
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Effective date of registration: 20200828 Address after: 102200, Changping District, Beijing, super Road, No. 33 Co-patentee after: GRINM MEDICAL INSTRUMENT (BEIJING) Co.,Ltd. Patentee after: Beijing Youzhuo Zhenglian Medical Technology Co., Ltd Address before: 102200, Changping District, Beijing, super Road, No. 33 Co-patentee before: GRINM MEDICAL INSTRUMENT (BEIJING) Co.,Ltd. Patentee before: GRIKIN ADVANCED MATERIAL Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210106 Address after: 102200 room 01, 2 / F, building 1, No. 33, Chaoqian Road, science and Technology Park, Changping District, Beijing Patentee after: Beijing Youzhuo Zhenglian Medical Technology Co., Ltd Address before: No.33 Chaoqian Road, Changping District, Beijing 102200 Patentee before: Beijing Youzhuo Zhenglian Medical Technology Co., Ltd Patentee before: GRINM MEDICAL INSTRUMENT (BEIJING) Co.,Ltd. |