CN102895053A - Side-supporting type tectorial membrane support - Google Patents
Side-supporting type tectorial membrane support Download PDFInfo
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- CN102895053A CN102895053A CN2012102571060A CN201210257106A CN102895053A CN 102895053 A CN102895053 A CN 102895053A CN 2012102571060 A CN2012102571060 A CN 2012102571060A CN 201210257106 A CN201210257106 A CN 201210257106A CN 102895053 A CN102895053 A CN 102895053A
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- side stand
- main support
- support
- mount pad
- head end
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Abstract
The invention relates to a side-supporting type tectorial membrane support. The side-supporting type tectorial membrane support comprises a main support, a side support and a soft connection portion, wherein the main support and the side support are connected by the soft connection portion, the main support comprises a semi-exposed support portion and a built-in side support mounting seat, the semi-exposed support portion is arranged on the head end side of the main support, a framework is arranged on the full circumferential portion of the head end side of the main support, a tectorial membrane is arranged in a half-circumference range of the head end side, and the other half-circumference is an exposed support. The head end side with the tectorial membrane within the half-circumference range is closely attached to a small inner curvature wall of an artery. The side support mounting seat is arranged on the inner side of the main support, one end of the soft connection portion is connected with the side support mounting seat while the other end thereof is connected with the side support. The tectorial membrane at the head end of the side-supporting type tectorial membrane support can completely cover a small curvature side of an arch portion of the artery of a pathological position, and by the aid of the built-in side support mounting seat, the outer wall of the main support and the inner wall of an arch blood vessel of the artery can be tightly jointed, so that the pathological position can be completely covered and good operation quality is guaranteed.
Description
Technical field
The present invention relates to the medical apparatus and instruments that a kind of Wicresoft gets involved, refer to especially a kind of collateral covered graft-stent.
Background technology
With overlay film frame be used for the treatment of arotic disease be in recent years Aortic surgery one greatly the progress, its indication has comprised Aortic arch aneurysm and thoracoabdominal aortic aneurysm etc.This technology has alleviated operation wound greatly, patient recovers faster, but go back the Shortcomings part.The below describes aortic arch.
The overlay film frame that is used at present aortic arch is straight tube shape.Fig. 5 shows the example for arotic disease, when near-end tumor neck and left subclavian artery close together, in order to obtain sufficiently long anchorage zone to avoid causing owing to high speed blood flow in the aorta displacement of overlay film frame, often need left subclavian artery is sealed in the lump.Although can realize that like this overlay film frame is fixed in the aorta, because overlay film frame has sealed left subclavian artery, may cause cerebral ischemia and left upper extremity ischemia.In addition, break location is near the person of bow section, then can not finish operation with existing support, as adopting the chimney technology, then tends to produce internal hemorrhage due to trauma and affects therapeutic effect.
Using side to prop up the type support can solve the above problems, be that side is propped up the type support and can also have been rebuild important collatoral vessel when rebuilding aortic arch, yet the side of using is at present propped up the type support because its side stand is fixed on the outer wall of main support, the outer wall that causes side in use to prop up the type support can not be fitted fully with blood vessel, thereby near the diseased region the important collatoral vessel can not be covered fully and affect the effect of operation, and above-mentioned side is propped up the type support and can not by firm being fixed in the blood vessel, be moved under the impact of blood flow easily to a certain extent.In addition, so that each bar side stand is aimed at respectively corresponding bow partly props up and become very difficult.
Also have simultaneously, for the ease of with the installation of carrier, the all-round bare bracket that is set to not have overlay film of the head end of present collateral covered graft-stent, however the tremulous pulse lesser curvature side that does not have the bare bracket part of overlay film can not produce easily diseased region covers.
Therefore using collateral covered graft-stent to need key problems-solving is under the prerequisite of rebuilding important collatoral vessel, and the lesion portion in the arteries is close to covering fully.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of collateral covered graft-stent, under the prerequisite that realizes the collatoral vessel that reconstruction is important, the main support of collateral covered graft-stent and blood vessel is fitted tightly.
Collateral covered graft-stent provided by the invention, the section that is flexible coupling that comprises main support, side stand and connection main support and side stand, described main support comprises half-naked cradle portion and built-in side stand mount pad, described half-naked support portions is in the head end side of main support, all-round part in described main support head end side is provided with skeleton, have overlay film in the half cycle scope of described head end skeleton, half cycle is bare bracket in addition, and the head end overlay film of described half cycle scope partly is close to aortal lesser curvature side inwall; Described side stand mount pad is arranged on the inboard of main support, and an end of the described section that is flexible coupling connects described side stand mount pad, and the other end connects described side stand.
The head end side of main support is set to half bare bracket, makes the overlay film part of one side can cover the lesser curvature side of the aortic arch of easy generation lesion portion fully; The side stand mount pad is built in main support, the outer wall of main support and the inwall of aortic arch blood vessel are fitted tightly, reached equally and cover the effect of diseased region fully, thereby guarantee good operation quality.
The present invention is preferred, and the bare bracket of described half-naked cradle portion part is the same side with side stand on the circumferential direction of main support.
The present invention is preferred, and the outer wall of described side stand mount pad closely is fixedly connected with the inwall of described main support.
The present invention is preferred, and the axis direction of described side stand mount pad is parallel with the axis direction of described main support.
The present invention is preferred, is formed with on the described main support to be the arc-shaped depression portion that concaves, and described arc-shaped depression portion is the overlay film part of exoskeletal support, is provided with the opening corresponding with described side stand on the described arc-shaped depression portion, and described side stand connects described opening.
Because it is parallel with the axial direction of main support to be built in the axis of side stand mount pad of main support, thereby make the area of the opening in the arc-shaped depression portion of respective side support mount pad larger, therefore, be easy to its opening aligning collatoral vessel.
The present invention is preferred, and an end opening of described side stand mount pad is towards described arc-shaped depression portion.
The present invention is preferred, and the opening of the described arc-shaped depression portion side of described side stand mount pad is towards being set to the antegrade blood flow direction.
The present invention is preferred, and the opening of the described arc-shaped depression portion of described side stand mount pad is towards being set to contrary blood flow direction.
But the opening that is fixed on the side stand mount pad on the main support is towards both antegrade blood flow direction also reversible blood flow direction, thereby makes the installation of collateral covered graft-stent in blood vessel more flexible.
The present invention is preferred, and the position is provided with the alignment mark for the para-position collatoral vessel around described arc-shaped depression portion.
Circumferential position in the arc-shaped depression portion of main support arranges alignment mark, can be easy to side stand is put into collatoral vessel.
The present invention is preferred, size and the quantity of the diameter of described side stand mount pad and quantity respective side branch vessel.
Collateral covered graft-stent of the present invention, head end side by main support is set to half bare bracket, make the overlay film part of one side can cover the lesser curvature side of the aortic arch of easy generation lesion portion fully, again by the side stand mount pad is built in main support, the outer wall of main support and the inwall of aortic arch blood vessel are fitted tightly, reached equally and covered the effect of diseased region fully, thereby guaranteed good operation quality.
Description of drawings
Fig. 1 represents the structural representation of collateral covered graft-stent;
Sketch map is looked on the right side of the collateral covered graft-stent in Fig. 2 presentation graphs 1;
The elevational schematic view of the collateral covered graft-stent in Fig. 3 presentation graphs 1;
Fig. 4 represents that collateral covered graft-stent of the present invention implants aortal sketch map;
Fig. 5 represents that the straight barrel type overlay film frame is implanted aortal sketch map in the prior art.
[description of symbols among the figure]
1: main support; 10: skeleton; 11: the head end skeleton; 12: main body framework; 20: overlay film; 21: the head end overlay film; 22: the main body overlay film; 23: the recess overlay film; 23a: recessed shelves; 30: the side stand mount pad; 40: side stand; 50: section is flexible coupling; A: half-naked cradle portion; B: rack body section; C: arc-shaped depression portion.
The specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing.Fig. 1 is the structural representation of collateral covered graft-stent of the present invention, comprises main support 1 and side stand mount pad 30.
Half-naked cradle portion a is positioned at the head end of whole collateral covered graft-stent, and roughly circumferentially half is bare bracket, the half-naked cribbing that second half is covered by head end overlay film 21.This bare bracket part that is to say near collatoral vessel one side, and this has the set position of the overlay film part of head end overlay film 21 away from collatoral vessel one side, is close to aortal lesser curvature side inwall.
The b of rack body section is the main body of main support 1, is made of main body framework 12 and the main body overlay film 22 that covers on this main body framework 12.On the circumferential surface of close collatoral vessel one side of the b of rack body section, be provided with the arc-shaped depression portion c that is concavity, be that arc-shaped depression portion c is positioned at b section, frame is surrounded by tinsel around on the circumferential surface that is positioned at main support 1 of this arc-shaped depression portion c, be the overlay film part at the mid portion that is surrounded by this tinsel, support without metal rack, arc-shaped depression portion c is half the droplet-shaped of vertically cutting open, namely have thinner top c 1 and by thinner top to a side wider terminal c2 of extending vertically, this arc-shaped depression portion c is radially becoming large gradually by the radial section of top c 1 in terminad c2 expansion process of the circumferential surface that is in the b of rack body section on the main support 1, final c2 place on the circle wall of overlay film frame forms recessed shelves 23a, the circumferential size of this arc-shaped depression portion c is roughly 1/4 of the b of rack body section circumference, and axial length for example can be 30 ~ 50mm.
Side stand mount pad 30 is fixed on the inboard near the b of rack body section of arc-shaped depression portion c top c1, be that side stand mount pad 30 is arranged on axially the opposite end with recessed shelves 23a, and side stand mount pad 30 and arc-shaped depression portion c are positioned at the same side of main support 1 in a circumferential direction.The mounting means of this side stand mount pad 30 comprises two kinds of forward and backward, refers to that the opening of this side stand mount pad 30 flows to or the contrary blood flow flow direction towards antegrade blood flow.This side stand mount pad 30 is made of skeleton and overlay film equally, cylindrical, the axis direction of this cylindrical shape side stand mount pad 30 is roughly parallel with the axis direction of main support 1, and the quantity of corresponding important collatoral vessel is set to 3 places, the diameter respective side branch vessel of this side stand mount pad 30 arranges, and for example is the scope of 6 ~ 12mm.Owing to the axis of the side stand mount pad 30 that is built in main support 1 is parallel with the axial direction of main support 1, thereby make the area of the opening in the arc-shaped depression portion of respective side support mount pad 30 larger, have again at arc-shaped depression portion c and be provided with alignment mark, S labelling (with reference to Fig. 2) for example, wherein top c1 is 1 place, terminal c2 is 2 places, therefore is easy to its opening is aimed at collatoral vessel.
In addition, collateral covered graft-stent also comprises side stand 40 and is flexible coupling the 50(of section with reference to Fig. 4), this side stand 40 is connected and fixed with side stand mount pad 30 by the section 50 that is flexible coupling, and is used for rebuilding important collatoral vessel.
The overlay film of above-mentioned main support 1, side stand mount pad 30, side stand 40 and the section 50 that is flexible coupling can be slim blood vessel, is made by medical macromolecular materials, such as polyester fiber yarn fabric, politef, polyamide yarn fabric, polypropylene spun fabric.The material of the skeleton of above-mentioned main support 1, side stand mount pad 30 and side stand 40 can be medical alloy, such as niti-shaped memorial alloy, super alloy, cobalt chromium dynamax, the 316L medical stainless steel alloy etc. of playing of NiTi, is " Z " shape structure or braiding structure.
When needs are implanted tremulous pulse with above-mentioned collateral covered graft-stent 1, can adopt following mode:
In advance, measure the CT(computer topography before the operation) or nuclear magnetic resonance image, the diameter of clear and definite aortic arch, left subclavian artery, left common carotid artery and innominate artery, the collateral covered graft-stent of selected corresponding size.
Then, with pack into the sheath pipe of carrier of selected collateral covered graft-stent 1, when performing the operation, to be transported to appointed part with the carrier of collateral covered graft-stent 1 by guide wire, then discharge successively main support 1 and side stand 40, and withdraw from carrier, thus complete operation.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a collateral covered graft-stent comprises main support (1), side stand (40) and is connected main support (1) and the section that is flexible coupling (50) of side stand (40), it is characterized in that,
Described main support (1) comprises half-naked cradle portion (a) and built-in side stand mount pad (30), described half-naked cradle portion (a) is positioned at the head end side of main support (1), all-round part in described main support (1) head end side is provided with head end skeleton (11), in the half cycle scope of described head end skeleton (11), has head end overlay film (21), half cycle is bare bracket in addition, and head end overlay film (21) part of described half cycle scope is close to aortal lesser curvature side inwall; Described side stand mount pad (30) is arranged on the inboard of main support (1), and an end of the described section that is flexible coupling (50) connects described side stand mount pad (30), and the other end connects described side stand (40).
2. collateral covered graft-stent according to claim 1 is characterized in that,
The bare bracket of described half-naked cradle portion (a) part is the same side with side stand (40) on the circumferential direction of main support (1).
3. collateral covered graft-stent according to claim 1 is characterized in that,
The outer wall of described side stand mount pad (30) closely is fixedly connected with the inwall of described main support (1).
4. collateral covered graft-stent according to claim 1 is characterized in that,
The axis direction of described side stand mount pad (30) is parallel with the axis direction of described main support (1).
5. collateral covered graft-stent according to claim 1 is characterized in that,
Be formed with on the described main support (1) and be the arc-shaped depression portion (c) that concaves, described arc-shaped depression portion (c) is the overlay film part of exoskeletal support, be provided with the opening corresponding with described side stand (40) on the described arc-shaped depression portion (c), described side stand (40) connects described opening.
6. collateral covered graft-stent according to claim 1 or 5 is characterized in that,
One end opening of described side stand mount pad (30) is towards described arc-shaped depression portion (c).
7. according to claim 1 or 6 described collateral covered graft-stents, it is characterized in that,
The opening of described arc-shaped depression portion (c) side of described side stand mount pad (30) is towards being set to the antegrade blood flow direction.
8. according to claim 1 or 6 described collateral covered graft-stents, it is characterized in that,
The opening of the described arc-shaped depression portion (c) of described side stand mount pad (30) is towards being set to contrary blood flow direction.
9. collateral covered graft-stent according to claim 1 is characterized in that,
The position is provided with the alignment mark for the para-position collatoral vessel around described arc-shaped depression portion (c).
10. collateral covered graft-stent according to claim 1 is characterized in that,
Size and the quantity of the diameter of described side stand mount pad (30) and quantity respective side branch vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257106.0A CN102895053B (en) | 2012-07-23 | 2012-07-23 | Collateral covered graft-stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257106.0A CN102895053B (en) | 2012-07-23 | 2012-07-23 | Collateral covered graft-stent |
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| Publication Number | Publication Date |
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| CN102895053A true CN102895053A (en) | 2013-01-30 |
| CN102895053B CN102895053B (en) | 2015-08-26 |
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| CN201210257106.0A Active CN102895053B (en) | 2012-07-23 | 2012-07-23 | Collateral covered graft-stent |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106923931A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN106923943A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN107625562A (en) * | 2016-07-13 | 2018-01-26 | 先健科技(深圳)有限公司 | Branched membrane-covered support |
| CN110063823A (en) * | 2019-06-04 | 2019-07-30 | 魏民新 | A kind of bracket for aortic arch disease treatment |
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| CN106923931A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN106923943A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Overlay film frame |
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| CN110063823A (en) * | 2019-06-04 | 2019-07-30 | 魏民新 | A kind of bracket for aortic arch disease treatment |
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| Publication number | Publication date |
|---|---|
| CN102895053B (en) | 2015-08-26 |
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