CN104997572A - Aortic dissection breach plugging device - Google Patents
Aortic dissection breach plugging device Download PDFInfo
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- CN104997572A CN104997572A CN201410164346.5A CN201410164346A CN104997572A CN 104997572 A CN104997572 A CN 104997572A CN 201410164346 A CN201410164346 A CN 201410164346A CN 104997572 A CN104997572 A CN 104997572A
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Abstract
The invention relates to the technical field of medical instruments, and provides an aortic dissection breach plugging device which comprises a bare stent main body (1), a side stent sheath (2) and a plugging side stent (3) compressed in the side stent sheath (2), wherein the plugging side stent (3) further comprises a spring ring (4) and spring ring tiny fluff (5), or the plugging side stent (3) further comprises a steel wire (6) and a spongy plugging object (7). According to the invention, the plugging side stent is fixed to a dissection breach and effectively plugs the breach, so the condition that blood enters a pseudocoele, and organization and absorption of the pseudocoele thrombus are induced is avoided.
Description
Technical field
The present invention relates to technical field of medical instruments, be especially applied to the plugging device of dissection of aorta breach.
Background technology
Dissection of aorta (aortic dissection) refers to that aorta lumen inner blood enters aortic tunica media from aortic tunica intima breach, make middle membrance separation, and along the expansion of aorta long axis direction, thus form a kind of pathological change in true and false two chambeies of aorta.Its main harm is, directly breaking or breaking after forming aneurysm of false chamber causes massive hemorrhage death, and in the process that interlayer is formed, the blood confession of aorta important branch is easily interrupted in the formation of interlayer, cause the severe ischemic even afunction of important organ, cause serious complication or death.
Along with the development of science and technology, the exploitation of new material and the innovation of micro fabrication, there is the operation tool of Wicresoft, such as blood vessel covered stent in the treatment for dissection of aorta breach in the middle of clinical practice.Overlay film frame, based on metallic framework, covers one deck artificial blood vessel film outside it or inside it.Overlay film frame conveying can be expanded behind affected part, is then close to tunica intima, is closed at interlayer cut place, prevents blood flow from continuing to enter false chamber thus makes the thrombosis parallel operationization absorption gradually of false chamber.Clinically, interlayer breach can be completely cut off completely in order to ensure overlay film frame, need respectively have a segment length to be about the stent anchors district of 15mm, to avoid the generation of internal hemorrhage due to trauma or stent migration at breach distance end.This just looks like be go to fill out with one piece of patch to sew up a hole in one's coat, and it is firm that patch must be over that the size in hole itself could sew and mend.But when there is important bifurcated artery in this stent anchors district, overlay film frame is while isolated interlayer breach, and also contiguous bifurcated artery will be completely cut off to fall together, this will cause the ischemia of target organ even downright bad.Therefore, for the complicated interlayer of the contiguous important branch tremulous pulse of such class breach, need badly clinically and want one can targeting shutoff breach, do not affect again the interlayer breach plugging device of contiguous bifurcated artery.
China Patent No. is CN201110208363.0, publication number is CN102415909A, priority number is 61/365,9552010.07.20US with 13/170,8432011.06.28US patent of invention disclose a kind of false chamber stopper, described stopper comprises multiple pillar, and at least one of wherein said multiple pillar has B-C post part, and described B-C post part has two or more secondary pillars.The basic functional principle of this invention is after compression, aorta breach is transported to by induction system, and false chamber is entered by aorta breach under the traction of induction system, and the expansion of stopper is realized at false intracavity, single pillar arch formed arc, overall formation fusiformis, can realize the shutoff of dissection of aorta breach well and then form thrombosis at false intracavity, blood is no longer entered in the middle of false chamber after expansion.False chamber thrombus organization gradually after by shutoff, stopper also can shrink thereupon and stay in the middle of middle rete.But this invention also has its defect: first, the device of any fixing breach stopper is not mentioned in this invention.At dissection of aorta breach place, high speed blood flow flows into false chamber from true chamber through breach, if stopper cannot effectively be anchored to breach place, stopper is very likely caused to be poured false chamber by blood flow, its pointed end likely scratches false lumen wall thus causes it to break, and patient can at short notice because hemorrhagic shock be dead; Secondly, the stopper that this invention proposes completes release expansion at false intracavity, and the false lumen wall of interlayer is only the middle adventitia of the aorta tube wall of one deck weakness, carries out expanding inherently there is certain risk bursting false chamber at false intracavity.Therefore, although this invention proposes the idea of targeting clip occluder slabbing mouth, also exist in clinical practice and significantly design deficiency.In order to completely cut off interlayer breach more safely and avoid the excessive interference to false chamber, we need design one to be effectively anchored on interlayer break location, and can complete the device of stopper release around breach.
Summary of the invention
The object of the invention is to realize that fixing shutoff is collateral closes dissection of aorta breach at interlayer breach place, stop that blood flow enters false chamber, make false chamber thrombus organization gradually.
The invention provides a kind of dissection of aorta breach plugging device, concrete technical scheme is as follows:
Technical scheme one of the present invention: a kind of dissection of aorta breach plugging device, comprise bare bracket main body, collateral epitheca and the shutoff that is compressed in collateral epitheca collateral;
Described shutoff is collateral also comprises turn and turn microvillus;
Its one end of described turn is anchored to the outer surface of bare bracket main body by connecting ring, described turn microvillus is attached on turn;
Technical scheme two of the present invention: a kind of dissection of aorta breach plugging device, comprise bare bracket main body, collateral epitheca and the shutoff that is compressed in collateral epitheca collateral;
Described shutoff is collateral also comprises steel wire and spongy plug;
Described steel wire one end is anchored to the outer surface of bare bracket main body by connecting ring; Described spongy plug is attached on steel wire.
Preferably, on the outer surface of bare bracket main body, the distance end of connecting ring position is provided with shutoff anchor point.
Preferably, the distance end outer rim of bare bracket main body is respectively provided with multiple agent localization point.
Preferably, the outer end of collateral epitheca, is connected with traction seal wire.
The present invention is that a lift-launch shutoff is collateral on the basis of a bare bracket main body.Bare bracket main body not only serves the effect (be collateral the providing of shutoff and realize self fixing platform) of carrier, and serves the moulding effect in true chamber.Shutoff is collateral is fixed on interlayer breach place and effective shutoff breach, stops that blood flow enters false chamber, induces false chamber thrombus organization and absorb.Meanwhile, the outer surface due to bare bracket main body has the existence of shutoff anchor point and agent localization point, course of conveying can obtain the better visual field under Angiography.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention 1, and wherein A is compressive state, and B is release conditions;
Fig. 2 is the structural representation of embodiments of the invention 2, and wherein A is compressive state, and B is release conditions;
Wherein Reference numeral is: bare bracket main body 1, collateral epitheca 2, shutoff are collateral 3, turn 4, turn microvillus 5, steel wire 6, spongy plug 7, connecting ring 8, shutoff anchor point 9, agent localization point 10.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of dissection of aorta breach of the present invention plugging device is described in further detail.
Embodiment 1:
As shown in Figure 1, the present invention is a kind of dissection of aorta breach plugging device, comprises bare bracket main body 1, collateral epitheca 2 and is compressed in the shutoff collateral 3 in collateral epitheca 2; Shutoff collateral 3 also comprises turn 4 and turn microvillus 5; Its one end of turn 4 is anchored to the outer surface of bare bracket main body 1 by connecting ring 8; Turn microvillus 5 is attached on turn 4; On the outer surface of bare bracket main body, the distance end of connecting ring 8 position is provided with shutoff anchor point 9; The distance end outer rim of bare bracket main body 1 is respectively provided with four agent localization points 10; The outer end of collateral epitheca 2 is connected with traction seal wire 11.
Wherein, bare bracket main body 1 can adopt laser-engraving technique or weaving to make; Collateral epitheca 2 can adopt elongated round tube shape structure, and the caliber size of naturalness lower spring circle 4 is greater than the caliber size of collateral epitheca 2, and collateral epitheca 2 elongated under compressive state makes turn 4 be out of shape, and turn 4 is compressed in collateral epitheca 2; Traction seal wire 11 herein selects the product stage to be connected in the outer end of collateral epitheca 2, but is not limited to this, before operation starts, also traction seal wire can be connected in the outer end of collateral epitheca 2 temporarily.
During use, first one that bare bracket main body 1 is compressed in induction system controls on seal wire, then the traction seal wire 11 that collateral to collateral epitheca 2, the shutoff be compressed in collateral epitheca 23, bare bracket main body 1 and collateral epitheca 2 outer end connect is compressed in the main body epitheca of induction system as a whole together, now because collateral epitheca 2 and turn 4 adopt the anchored mode of connecting ring 8 to be connected, therefore the turn 4 be anchored on bare bracket main body 1 outer surface has certain mobility, can avoid fracture or deformation that shutoff collateral 3 occurs in the process of reduced overall, next, true chamber, aortic disease position is imported through femoral artery or other peripheral arterials by the entirety compressed, agent localization point 10 is observed under DSA (Digital SubtractionAngiography), anchor point 10 can help doctor to obtain better image under DSA, the particular location of location bare bracket main body 1, then main body epitheca is withdrawn, now bare bracket main body 1 still ties up to and controls on seal wire, and continue to adjust the collateral 3 aligning dissection of aorta breaches of shutoff by observing shutoff anchor point 9 under DSA, by traction seal wire 11 collateral epitheca 2 and shutoff collateral 3 together guided subsequently and enter interlayer vacation chamber, withdraw when the time comes and control seal wire release bare bracket main body 1, finally withdrawing collateral epitheca 2 again discharges shutoff collateral 3, the turn 4 of shutoff collateral 3 returns to by the naturalness before compressing under its own resilient effect, turn microvillus 5 opens simultaneously, turn 4 and turn microvillus 5 are at false intracavity combined effect shutoff dissection of aorta breach, stop that blood flow enters false chamber, induce false chamber thrombus organization and absorb.
Embodiment 2:
As shown in Figure 2, the present invention is a kind of dissection of aorta breach plugging device, comprises bare bracket main body 1, collateral epitheca 2 and is compressed in the shutoff collateral 3 in collateral epitheca 2; Shutoff collateral 3 also comprises steel wire 6 and spongy plug 7; Steel wire 6 one end is anchored to the outer surface of bare bracket main body 1 by connecting ring 8; Spongy plug 7 is attached on steel wire 6.
Wherein, bare bracket main body 1 can adopt laser-engraving technique or weaving to make; Collateral epitheca 2 adopts elongated round tube shape structure, and under naturalness, spongy plug 7 is short and thick shape, and bore is greater than the bore of collateral epitheca 2, and under compressive state, spongy plug 7 is compressed in collateral epitheca 2; Spongy plug 7 can select medical high resilience material, such as highdensity polyvinylalcohol sponge.
During use, first traction seal wire 11 is connected with collateral epitheca 2, one that bare bracket main body 1 is compressed in induction system controls on seal wire, then collateral epitheca 2, be compressed in the shutoff collateral 3 in collateral epitheca 2, the traction seal wire 11 that bare bracket main body 1 and collateral epitheca 2 outer end connect is compressed in the main body epitheca of induction system as a whole together, now because collateral epitheca 2 and turn 4 adopt the anchored mode of connecting ring 8 to be connected, therefore the turn 4 be anchored on bare bracket main body 1 outer surface has certain mobility, fracture or deformation that shutoff collateral 3 occurs in the process of reduced overall can be avoided, next, true chamber, aortic disease position is imported through femoral artery or other peripheral arterials by the entirety compressed, observe under DSA and reach, and discharge main body epitheca, now bare bracket main body 1 still ties up to control seal wire, with after guiding through drawing seal wire 11 collateral epitheca 2 is entered the false chamber of interlayer together with shutoff collateral 3 by dissection of aorta breach, withdraw when the time comes and control seal wire release bare bracket main body 1, finally withdrawing collateral epitheca 2 again discharges shutoff collateral 3, the spongy plug 7 of shutoff collateral 3 is at false intracavity, because its own resilient effect returns to short and thick shape, shutoff dissection of aorta breach, stop that blood flow enters false chamber, induce false chamber thrombus organization and absorb.
Embodiment 3:
A kind of dissection of aorta breach plugging device, all the other are with embodiment 2, and the dissection of aorta breach of patient is positioned at left subclavian artery far-end 5mm place, breach diameter 3mm, and near-end tumor eck footpath is 35mm.
In order to obtain enough radial forces to be anchored on blood vessel after bare bracket main body 1 discharges, the caliber size of bare bracket main body should exceed near-end tumor eck footpath 10%-20%, therefore selects the bare bracket main body 1 of 40mm bore; In order to the diameter making spongy plug 7 bore upon discharge be greater than dissection of aorta breach, the spongy plug 7 of 6mm bore under selection naturalness; Smoothly by dissection of aorta breach, the collateral epitheca 2 of 2.5mm bore can be selected to make collateral epitheca 2; Because shutoff collateral 3 is connected on the outer surface of bare bracket main body 1 by connecting ring 8 with anchored mode, therefore also need not consider the fixation problem of shutoff collateral 3 at the false intracavity of interlayer, meanwhile, bare bracket main body 1 pair of blood vessel has moulding effect; Shutoff collateral 3 and the combination of bare bracket main body 1 can make shutoff collateral 3 effectively be fixed on dissection of aorta breach and effective shutoff breach, stop that blood flow enters false chamber, induce false chamber thrombus organization and absorb.
Below the preferred embodiment of the invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modification or replacement under the prerequisite without prejudice to the invention spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (4)
1. a dissection of aorta breach plugging device, is characterized in that, it comprises bare bracket main body (1), collateral epitheca (2) and is compressed in the shutoff collateral (3) in collateral epitheca (2);
Described shutoff collateral (3) also comprises turn (4) and turn microvillus (5), or described shutoff collateral (3) also comprises steel wire (6) and spongy plug (7);
Described turn (4) its one end is anchored to the outer surface of bare bracket main body (1) by connecting ring (8), described turn microvillus (5) is attached on turn (4);
Described steel wire (6) one end is anchored to the outer surface of bare bracket main body (1) by connecting ring (8); Described spongy plug (7) is attached on steel wire (6).
2. a dissection of aorta breach plugging device as claimed in claim 1, on the outer surface that it is characterized in that bare bracket main body (1), the distance end of connecting ring (8) position is provided with shutoff anchor point (9).
3. a dissection of aorta breach plugging device as claimed in claim 1, is characterized in that, the distance end outer rim of bare bracket main body (1) is respectively provided with multiple agent localization point (10).
4. a dissection of aorta breach plugging device as claimed in claim 1, is characterized in that, the outer end of described collateral epitheca (2), is connected with traction seal wire (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410164346.5A CN104997572B (en) | 2014-04-23 | 2014-04-23 | A kind of dissection of aorta breach plugging device |
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| CN201410164346.5A CN104997572B (en) | 2014-04-23 | 2014-04-23 | A kind of dissection of aorta breach plugging device |
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| CN104997572B CN104997572B (en) | 2017-12-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108186071A (en) * | 2017-12-28 | 2018-06-22 | 胡锡祥 | Flexible stopper and dissection of aorta intimal tear method for blocking |
| CN113017745A (en) * | 2019-12-24 | 2021-06-25 | 上海微创心脉医疗科技(集团)股份有限公司 | Plugging device and system |
| WO2023185486A1 (en) * | 2022-03-28 | 2023-10-05 | 上海微创医疗器械（集团）有限公司 | Occlusion stent and delivery system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108186071A (en) * | 2017-12-28 | 2018-06-22 | 胡锡祥 | Flexible stopper and dissection of aorta intimal tear method for blocking |
| CN108186071B (en) * | 2017-12-28 | 2020-09-25 | 胡锡祥 | Flexible plugging device |
| CN113017745A (en) * | 2019-12-24 | 2021-06-25 | 上海微创心脉医疗科技(集团)股份有限公司 | Plugging device and system |
| WO2021128938A1 (en) * | 2019-12-24 | 2021-07-01 | 上海微创心脉医疗科技(集团)股份有限公司 | Occluder and system |
| WO2023185486A1 (en) * | 2022-03-28 | 2023-10-05 | 上海微创医疗器械（集团）有限公司 | Occlusion stent and delivery system |
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| CN104997572B (en) | 2017-12-01 |
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