CN109717986A - A kind of branched membrane-covered support and branched membrane-covered support system - Google Patents
A kind of branched membrane-covered support and branched membrane-covered support system Download PDFInfo
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Abstract
The present invention provides a kind of endovascular stent for abdominal aorta and endovascular stent for abdominal aorta system, including rack body and overlay film, the rack body include multiple sequentially connected support rings, and the overlay film is coated on the rack body；The branched membrane-covered support is by proximal end to distally successively including main body upper section, windowing section and main body lower section, and the windowing section is equipped at least one first branch's window；First branch window has stand frame, the stand frame is surrounded by adjacent two complete support rings, the overlay film being coated on the stand frame is equipped with aperture, and for being connected to branch vessel, the overlay film within the scope of the stand frame is recessed to internal stent for the aperture.Endovascular stent for abdominal aorta and endovascular stent for abdominal aorta system provided by the invention can be used as the endovascular stent for abdominal aorta and endovascular stent for abdominal aorta system of short tumor neck kidney week abdominal aneurvsm interventional therapy, can have excellent anchoring stability.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of branched membrane-covered support and branched membrane-covered support
System.
Background technique
Abdominal aneurvsm is most fatal and treatment one of highest vascular surgery disease of difficulty.Traditional surgical intervention operation
Enforcement difficulty is high, operation wound is big, therefore the intravascular Interventional Treatment method implemented using endovascular stent for abdominal aorta is in recent years
To be widely used in clinical treatment.Interventional therapy operation is by femoral artery notch by endovascular stent for abdominal aorta through transportation system
It is sent to abdominal aortic lesions position, protects lesion vessels, repairs abdominal aortic lesions.
Many kinds of for the endovascular stent for abdominal aorta of abdominal aneurvsm interventional therapy currently on the market, various product is equal
Has the characteristics that respective, indication range also different from.Most of endovascular stent for abdominal aorta products are in treatment abdominal aorta
When tumor, usually it is fixed on tumor neck by the anchorage zone of endovascular stent for abdominal aorta proximal end.In order to meet abdominal aorta overlay film branch
Frame proximal end is preferable adherent and prevents the performances such as displacement at a specified future date, and endovascular stent for abdominal aorta is made to have preferable anchoring stability,
The shortest length for being applicable in the proximal landing zone domain of case need to be more than or equal to 15mm.However, the tumor of the abdominal aneurvsm of different cases
Neck length degree is not identical.Generally clinically, when the tumor neck of abdominal aneurvsm is more than or equal to 15mm, in patient's own bodies item
In the case that part meets, doctor can be implanted into endovascular stent for abdominal aorta with the method for intervention to completely cut off abdominal aneurvsm.As abdomen master
When aneurysmal tumor neck is less than 15mm (knurl initial position is closer from the arteria renalis), since common endovascular stent for abdominal aorta is wanted
Proximal end is asked to have the anchorage zone more than or equal to 15mm, doctor is difficult to be implanted into common abdominal aorta overlay film branch with the method for intervention at this time
Frame.Therefore current solution can only switch to open operation treatment, or be opened using the abdominal aorta of special customization
The mode that window stent in the treatment or doctor open a window with orthotopic fenestration or in advance on the spot is handled.
But open operation is used, not only operates extremely complex, easily causes various severe complications, and be not each disease
The physical condition of people can be resistant to open operation.For by the way of abdominal aorta windowing stent, at present in China,
The abdominal aorta windowing stent of only unique a customization, such bracket need 4-6 weeks customization time, actively according to abdomen
The treatment of arteries and veins windowing stent, the state of an illness of patient may not be able to wait 4-6 weeks.For by the way of opening a window using orthotopic fenestration or in advance and
Speech, orthotopic fenestration or pre- windowing are very high to the experience of doctor, technical level requirement, if endovascular stent for abdominal aorta system is uncomfortable
Return dress after closing release, doctor can not voluntarily open a window in advance, though and orthotopic fenestration has successful story, since mechanical and laser is former
Pros and cons are respectively deposited in position windowing, and there are still disputes for feasibility.In addition, what also several moneys were non-customized is used to control on America and Europe and other places
The branching type support system for treating kidney week abdominal aneurvsm is in the research before listing.Anatomically divide from human body abdominal aorta
Analysis often more than double arteria renalis upper limbs is averagely just the lower edge of superior mesenteric artery about only 8.4mm, and superior mesenteric artery cannot
Fluting or windowing need to be reserved by being blocked, under anatomic condition severe in this way, it is considered that the longer anchoring in overlay film anchorage zone is more
It is firm.However in the branching type bracket in this few money research, some main body racks are not given near kidney week more than renal artery stent
Spacing has the risk being extruded so as to cause renal artery stent；Some sets for overhanging double kidney branch stent reserved locations
The form at waisting has been counted, and has not had anchoring function at waisting.I.e. the shortcomings that the latter is the abdomen master that cannot achieve multiple-limb
The anchorage zone of arteria covering membrane supporter is Chong Die with the reserved location of double kidney branch stents to shorten anchorage zone, leads to abdominal aorta
Overlay film frame anchoring is unstable, or in order to increase the anchoring effect of endovascular stent for abdominal aorta, extends its anchorage zone, by abdomen master
The proximal end dominant anchor of arteria covering membrane supporter on coeliac trunk blood vessel, in this way, increase bracket structural complexity and operation it is difficult
Degree, and be easy to influence coeliac trunk blood vessel.
Summary of the invention
The purpose of the present invention is to provide a kind of branched membrane-covered supports and branched membrane-covered support system, can be used as short
Tumor neck kidney week abdominal aneurvsm interventional therapy endovascular stent for abdominal aorta and endovascular stent for abdominal aorta system, with excellent
Anchoring stability, and without being anchored to coeliac trunk blood vessel or more, structure is simple, and surgical procedure coverage is small, and is not necessarily to
Customization, can be used for the treatment of emergency case.
In order to solve the above technical problems, the present invention provides a kind of endovascular stent for abdominal aorta, including rack body and overlay film,
The rack body includes multiple sequentially connected support rings, and the overlay film is coated on the rack body；The branching type
Overlay film frame is by proximal end to distally successively including main body upper section, windowing section and main body lower section, and the windowing section is equipped at least one
First branch's window；First branch window has stand frame, and the stand frame is by adjacent two complete bracket collar
At the overlay film being coated on the stand frame is equipped with aperture, and the aperture with branch vessel for being connected to, the bracket
Overlay film within the scope of frame is recessed to internal stent.
Optionally, the main body upper section offers U-type groove, and the U-type groove provides channel for branch vessel.
Optionally, the two sides of U-type groove are connected with support rod, and support rod is connected with complete support ring.
Optionally, the branched membrane-covered support further includes naked section, and naked section of the distal end is close with the main body upper section
End is connected.
Optionally, described naked section includes multiple barbs, and the multiple barb is for anchoring the branched membrane-covered support.
Optionally, window is offered for described naked section, in naked section of not release completely, the width of the window is other non-windows
2-5 times of mouth region width.
Optionally, the windowing section is equipped at least one second branch's window；Support ring in second branch window
Part and the lower bracket frame of first branch's window belong to the same support ring, and part of this support ring in second branch's window is
Concave shape, the overlay film in second branch window are equipped with aperture, and the aperture with branch vessel for being connected to, and described the
The overlay film outside overlay film and second branch window in two branch's windows is linked by suture.
Optionally, first branch window and/or second branch window and/or the edge of the U-type groove difference
It is fixed with multiple development parts.
Optionally, it is equipped with built-in channel in first branch window and/or second branch window, it is described built-in logical
Road is starting point to rack body internal stretch using the aperture.
Optionally, the branched membrane-covered support further includes bifurcated section, the proximal end of the bifurcated section and the main body lower section
Distal end connection, the bifurcated section is split up into two tubulose leg structures from the direction of proximate.
The present invention also provides a kind of branched membrane-covered support systems, including above-mentioned branched membrane-covered support and branch's branch
Frame, the branch stent are connect with the aperture of first branch window and/or second branch window.
A kind of endovascular stent for abdominal aorta provided by the invention and endovascular stent for abdominal aorta system have following
The utility model has the advantages that
Compared with prior art, the branched membrane-covered support in the present invention is only internally recessed at branch's window, and divides
Other regions of windowing section other than branch window still have radial support power, increase the adherence quality of bracket, can be used for anchoring abdomen
Aorta tectorial membrane stent.Moreover, because being recessed inwardly in the range of branch's window, bracket is branch while anchoring again
Bracket leaves position, and branch's window has certain area, as long as branch vessel is in the windowing range of branch's window
Interior case can be applicable in the bracket.So this bracket be it is non-customized, patient without being waited because of customization, patient and doctor without
The risk for making disease progression because of waiting need to be undertaken, can be used for emergency case.
In addition, the main body upper section of overlay film frame of the invention may include providing the U-type groove in channel for branch vessel, due to this
The two sides of U-type groove are connected with support rod, and support rod is connected with complete support ring, therefore radial support power can be transmitted from support ring
To around U-type groove, to ensure that the anchorage force and adherence quality of main body upper section.Complete support ring refers to that support ring is in closure
Shape, such as round, complete support ring has stronger radial support power.
Furthermore naked section of overlay film frame of the invention of one of V-type is bigger than other V-types, naked section of window is formed.This can
It is realized by way of thermal finalization.Naked section when not discharging afterwards, the width of naked section of window is the 2-5 of other non-window sector widths
Times.For main body rack in the case where not discharging afterwards, the outer sheath of branch stent may pass through naked section of window, which achieves: not
Branch stent can pass through in naked section of importing branch vessel from main body rack proximal segment when discharging afterwards, and rear release front and back and rear release wink
Between, naked section will not all have an impact sheath.This considerably increases the importing success rates of branch stent.
Detailed description of the invention
Fig. 1 is the schematic diagram of the endovascular stent for abdominal aorta in the embodiment of the present invention one；
Fig. 2 is the naked section of signal in not rear release conditions of the endovascular stent for abdominal aorta in the embodiment of the present invention one
Figure；
Fig. 3 is the naked section of signal in rear release conditions of the endovascular stent for abdominal aorta in the embodiment of the present invention one
Figure；
Fig. 4 is the partial schematic diagram of the endovascular stent for abdominal aorta in the embodiment of the present invention one；
Fig. 5 is the schematic diagram of the windowing section of the endovascular stent for abdominal aorta in the embodiment of the present invention one；
Fig. 6 a is the partial schematic diagram of the windowing section of the endovascular stent for abdominal aorta in the embodiment of the present invention one；
Fig. 6 b is the another partial schematic diagram of the windowing section of the endovascular stent for abdominal aorta in the embodiment of the present invention one；
Fig. 7 is another partial schematic diagram of windowing section of the endovascular stent for abdominal aorta in the embodiment of the present invention one,
Fig. 8 is the schematic diagram of the endovascular stent for abdominal aorta in the embodiment of the present invention two；
Fig. 9 is the schematic diagram of the endovascular stent for abdominal aorta system in the embodiment of the present invention three；
Figure 10 is the partial schematic diagram of the endovascular stent for abdominal aorta system in the embodiment of the present invention three.
Description of symbols:
100- endovascular stent for abdominal aorta；
200- rack body；300- overlay film；
Naked section of 400-；410- sheath window of tube；411- barb；
500- overlay film section；
510- main body upper section；511-U type groove；512- support rod；513- support ring；
520- windowing section；521- high kidney section；The low kidney section of 522-；
530- high kidney window；531- stand frame；532- upper bracket frame；533- lower bracket frame；534- high kidney aperture；
The low kidney window of 540-；541- sutures wire frame；542- suture；543- suture；The low kidney aperture of 544-；
550- concave inward structure；
560- high kidney built-in channel；The low kidney built-in channel of 570-；
580- main body lower section；
590- bifurcated section；591- tubulose leg structure；
600- high kidney bracket；The low kidney bracket of 700-.
Specific embodiment
Unless otherwise specified, term " distal end " and " proximal end " are covered herein with reference in abdominal aorta using abdominal aorta
The direction of blood flow from heart during membrane support: " distal end " indicates the environment division away from heart or the side far from heart
To, and " proximal end " indicates the direction close to the environment division of heart or towards heart.
The non-customized overlay film frame system with multiple-limb that the invention proposes a kind of, can be used for the kidney week abdomen of short tumor neck
The interventional therapy of aortic aneurysm has excellent anchoring stability, without being anchored to coeliac trunk blood vessel or more.Overlay film of the invention
The interventional therapy that bracket can be used for having the aorta of multiple branches is carried out by taking endovascular stent for abdominal aorta as an example in this specification
Illustrate, but the aorta that the structure also can be used for having similar anatomical structure, such as the overlay film frame or other phases of aorta pectoralis
Like the overlay film frame of structure, this be skilled artisans appreciate that.
Below in conjunction with the drawings and specific embodiments to endovascular stent for abdominal aorta proposed by the present invention and abdominal aorta overlay film
Support system is described in further detail.It should be noted that attached drawing is all made of very simplified form and using non-accurate
Ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
Embodiment one
The present embodiment provides a kind of endovascular stent for abdominal aorta, are the abdomen masters in the embodiment of the present invention one with reference to Fig. 1, Fig. 1
The schematic diagram of arteria covering membrane supporter.The endovascular stent for abdominal aorta 100 includes rack body 200 and overlay film 300, the overlay film
300 are coated on the rack body 200 of part.The 200 networking tubulose of rack body.The rack body 200 includes naked
Section 400 and overlay film section 500.Naked section 400 of the distal end is connect with the proximal end of the overlay film section 500.Described naked section 400 is used for anchor
Gu the endovascular stent for abdominal aorta 100.The overlay film 300 is coated in the overlay film section 500.The overlay film section 500 is used for
Completely cut off aneurysm with blood flow and flows through blood flow inside endovascular stent for abdominal aorta 100.The overlay film section 500 includes successively
Main body upper section 510, windowing section 520 and the main body lower section 580 of connection.The proximal end of the main body upper section 510 with described naked section 400
Distal end connects.The high kidney window 530 and low kidney window of the oriented rack body inner recess are opened up in the windowing section 520
540.The high kidney window 530 is close to the main body upper section 510, and the low kidney window 540 is close to main body lower section 580, the height
For being connected to the high arteria renalis (the higher side arteria renalis in position), the low kidney window 540 is used for dynamic with low kidney kidney window 530
Arteries and veins (the lower side arteria renalis in position) connection.Endovascular stent for abdominal aorta 100 in the present embodiment is from naked section 400 to the master
The lower edge brace sections that body upper section 510 arrives high kidney window 530 again can be provided for anchoring the endovascular stent for abdominal aorta 100
Radial support power.
In the present embodiment, there is the endovascular stent for abdominal aorta 100 unfolded state and pressure to hold state.In unfolded state
Under, the endovascular stent for abdominal aorta 100 has the trend of radial development.Specifically, described naked section 400, main body upper section 510,
Windowing section 520 and main body lower section 580 all have the trend of radial development.In the present embodiment, in the deployed state, described naked section
400, the radial section of main body upper section 510, windowing section 520 and main body lower section 580 is annular in shape.
Described naked section 400, in order to guarantee naked section 400 it is sufficiently adherent with normal blood vessels, naked section 400 needs to have enough diameters
To support force, the mode realized is not limited to naked section 400 and is carved by metal wire knitted or metal tube.
In order to further improve naked section 400 of anchoring effect, described naked section 400 has multiple barbs 411, multiple barbs
411 for anchoring the endovascular stent for abdominal aorta 100.As shown in Figure 1, naked section 400 is carved for metal tube, naked section 400
Share 5 barbs 411.Described naked section includes a support ring wave-shaped, and in one embodiment, the barb setting exists
The support ring is on the wave crest of naked section of the proximal end, and in another embodiment, the barb can also be not arranged in wave
On peak, and it is arranged in wave side, as long as anchoring can be played the role of.In other embodiments, the barb 411
Quantity is at least one, for example, described naked section 400 has one, two or three barb 411, described naked section 400 can also be with
Without barb 411.
In the present embodiment, described naked section 400 offers sheath window of tube 410.Referring to figs. 2 and 3, Fig. 2 is implementation of the present invention
The schematic diagram of release conditions after naked section of endovascular stent for abdominal aorta in example one is in not, Fig. 3 is in the embodiment of the present invention one
Naked section of the endovascular stent for abdominal aorta release conditions after schematic diagram.Regard naked section of support ring as a waveform
Figure, the sheath window of tube 410 is an inverted peak, when being not rear release conditions for naked section 400, the width of sheath window of tube 410
It is 3 times of other non-window sector widths.The width of the sheath window of tube 410 refers to, under not rear release conditions, sheath window of tube
The half-peak breadth at inverted peak corresponding to 410.Other non-window sector widths refer to, under not rear release conditions, other non-sheaths
The half-peak breadth at the peak of window.Sheath window of tube 410 can be realized by way of thermal finalization.In other embodiments, not at naked section 400
After when discharging, the width of sheath window of tube 410 is 2-5 times of other non-window sector widths.Described naked section 400 is not released afterwards in human body
It is non-deployed configuration before putting, the others tube such as conduit or sheath may pass through naked section 400 of sheath window of tube 410, and can not
Across naked section 400 of other parts.The outer diameter of the others tube such as conduit or sheath is less than or equal to 11F, wherein other
The outer diameter of tube is preferably 7F.Endovascular stent for abdominal aorta 100 can be made in the feelings not discharged afterwards by the way that sheath window of tube 410 is arranged
Other outer sheaths are passed through into sheath window of tube 410 under condition, can be convenient for before endovascular stent for abdominal aorta 100 completely release, it will
The outer sheath of high renal artery branch bracket passes through sheath window of tube 410 and imported into the arteria renalis, to considerably increase dynamic in high kidney
The success rate of other brackets is imported in arteries and veins.
The proximal end of the overlay film section 500 is connect with naked section 400 of the distal end, and the overlay film 300 is coated on the overlay film
In section 500, the overlay film section 500 is for making aneurysm and blood flow completely cut off and make blood flow inside endovascular stent for abdominal aorta 100
It flows through, the overlay film section 500 includes sequentially connected main body upper section 510, windowing section 520 and main body lower section 580.
The overlay film section 500 is connect with described naked section 400 by the modes such as suturing or heating.
The main body upper section 510 has radial support power, can be used for anchoring the endovascular stent for abdominal aorta 100, described
Main body upper section 510 is not limited to be carved by metal wire knitted or metal tube.
It further, is the office of endovascular stent for abdominal aorta 100 in the embodiment of the present invention one with reference to Fig. 1 and Fig. 4, Fig. 4
Portion's schematic diagram, the main body upper section 510 offer U-type groove 511, and the U-type groove 511 is used to mention for superior mesenteric artery bifurcations
For channel.
Specifically, the main body upper section 510 includes multiple support rings 513 with reference to Fig. 4, multiple support rings 513 successively connect
It connects.A U-type groove 511 is offered in multiple support rings 513 close to 510 proximal end of main body upper section.In the two sides of U-type groove 511
It is respectively fixed with a support rod 512, the distal end of each support rod 512 and the support ring 513 for being located at 512 distal end of support rod
It is fixedly connected, implementation are as follows: suture, hot melt, welding or mechanical mode connect.Due to the distal end branch of main body upper section 510
Mounting ring 513 is complete loop, therefore can provide radial support power after the main body upper section 510 expansion, and support force is by main body upper section
510 distal stent ring is transmitted to U-type groove 511, so that entire main body upper section 510 is had good radial support power with this, can make
For on the vasoactive wall of anchorage zone.After overlay film frame 100 is implanted into human body, support rod 512 can anchor and be sealed in branch vessel
Two sides reduce the risk leaked in I type.
The U-type groove 511 can be fixed with multiple development parts, and the development part is for assisting the U-type groove 511 to position.?
In operation, U-type groove 511 can be clearly showed that under X-ray.The mode that development part is arranged can be but not limited at U-type groove 511 weeks
Connection development part on the overlay film 300 enclosed, can also connect development part etc. on support rod.The mode of connection development part can be
But be not limited to suture, hot melt, welding etc..
It is the signal of the windowing section 520 of the endovascular stent for abdominal aorta 100 in the embodiment of the present invention one with reference to Fig. 5, Fig. 5
The proximal end of figure, the windowing section 520 is connect with the distal end of the main body upper section 510.The windowing section 520 includes high kidney section 521
With low kidney section 522.The high kidney section 521 is close to the main body upper end 510, and the low kidney section 522 is close to main body lower section 580.Institute
It states high kidney section 521 and the low kidney section 522 partly overlaps, the high kidney window 530 is located in the high kidney section 521, described low
Kidney window 540 is located in the low kidney section 522.The high kidney window 530 and low kidney window 540 are to inside the rack body
Recess.For the high kidney window 530 for being connected to the low arteria renalis, the low kidney window 540 is described for being connected to the low arteria renalis
Part in the section 520 that opens a window more than the lower edge of high kidney window 530 has radial support power, can be used as anchorage zone.
With reference to Fig. 5, the high kidney section 521 includes high kidney window 530 and non-window region.The low kidney section 522 includes low kidney
Window 540 and non-window region.High kidney section 521 and low kidney section 522 have overlay region.The high kidney window 530 and low kidney window 540 are
Concave inward structure, concave inward structure realize main body rack and abdominal aorta inner wall it is adherent while, and to be arranged in the high arteria renalis
Space has been reserved with other brackets at the low arteria renalis, the other brackets being arranged at the high arteria renalis and the low arteria renalis is avoided to be squeezed
Pressure.In other embodiments, the high kidney section 521 and low kidney section 522 can also non-overlapping areas.
Specifically, Fig. 6 a is the windowing section of the endovascular stent for abdominal aorta 100 in the embodiment of the present invention one with reference to Fig. 6 a
520 partial schematic diagram, the high kidney window 530 include stand frame 531 and high kidney aperture 534, and the stand frame 531 is located at institute
High kidney section 521 is stated, the overlay film 300 is coated on the stand frame 531, and the overlay film 300 on the stand frame 531 opens up
There is high kidney aperture 534, the high kidney aperture 534 with high arteria renalis blood vessel mouth for being connected to.
The windowing section 520 includes multiple sequentially connected support rings, and the stand frame 531 is by two adjacent support rings
It surrounds.Specifically, stand frame 531 is made of upper bracket frame 532 and lower bracket frame 533 with reference to Fig. 6 a, the upper bracket frame 532
It is respectively a part in two adjacent support rings with lower bracket frame 533.Since support ring is all complete ring structure, because
This stand frame 531 can be close to vascular wall, provide support force to anchor the endovascular stent for abdominal aorta 100.
Overlay film in the stand frame 531 of high kidney window 530 is partially due to unbraced structure, therefore in inside rack body
The shape of recess.The shape of this indent is that branch stent leaves position, is not under compression branched structure.The high arteria renalis in art
To be located in the range of stand frame 531, that is, ensure that the unimpeded of the high arteria renalis, and make endovascular stent for abdominal aorta 100 can
The anatomic morphological of different crowd is adapted to, i.e., endovascular stent for abdominal aorta 100 is without customizing, the high arteria renalis of different crowd
If the variation range of blood vessel mouth is regarded as being applicable in 531 range of stand frame.
With reference to Fig. 6 b, Fig. 6 b is the another of the windowing section 520 of the endovascular stent for abdominal aorta 100 in the embodiment of the present invention one
Partial schematic diagram, the low kidney window 540 include the suture wire frame 541 and low kidney aperture 544 that suture 542,543 is formed, institute
It states suture wire frame 541 and is located at the low kidney section 522, the overlay film in the low kidney window 540 and covering outside the low kidney window 540
Film 300 is linked by suture 542,543, offers low kidney aperture 544, the low kidney aperture 544 in the low kidney window 540
For being connected to low arteria renalis blood vessel mouth.
With reference to Fig. 7, in the present embodiment, the low kidney window 540 is designed as the structure of indent, and implementation can are as follows: passes through
The support ring of low kidney section 522 is locally recessed inwardly to form concave inward structure 550 by heat treatment method, and concave inward structure 550 is dynamic for low kidney
Branch stent at arteries and veins has reserved space, and because of the lower bracket of bracket loop section and high kidney window 530 in low kidney window 540
Frame 533 belongs to the same support ring, and part of this support ring in low kidney window 540 is concave shape, and which achieves inside
The support ring of recess is still closed loop bracket, stills provide radial support power, i.e. this section of support ring had both been branch stent reserved space
While this section of support ring function that has riveting fixed again.By concave inward structure 550 by way of mechanical or welding with low kidney section 522 into
The close connection of row makes an entirety., such design ensure that the anchorage zone of overlay film frame 100 of the invention is enough
It is long.Low kidney window 540 can be set larger (area than high kidney window 530 is big), shape due to not limited by stand frame
It is relatively flexible, can be rectangle, circle, ellipse, diamond shape etc., it is right can further to improve endovascular stent for abdominal aorta 100
The adaptability of the anatomic morphological of different crowd achievees the purpose that without customization.It should be noted that being presented in the application
Right renal arteries are slightly above the anatomical features of the left side arteria renalis, but there also have the left side arteria renalis to be slightly above right side kidney in actual conditions to be dynamic
Arteries and veins or the left and right sides arteria renalis high case about the same.It is higher than the patient of right renal arteries for the left side arteria renalis, as long as adopting
Same method is taken, by naked section 400 of this product, main body upper section 510, windowing 520 or so mirror image of section exchange design is i.e. applicable,
And the patient equally high for the left and right sides arteria renalis, since low 540 area of kidney window of this product is big, flexible shapes,
It can be applicable in.
In the present embodiment, multiple development parts, the development are fixed on the stand frame 531 and the suture wire frame 541
Part is for assisting the stand frame 531 and suture wire frame 541 to position in art.It in other embodiments, can the only bracket
It is fixed with multiple development parts on frame 531 and suturing does not have on wire frame 541, or is only fixed on the suture wire frame 541 multiple
Development part and do not have on stand frame 531 or the stand frame 531 and the suture wire frame 541 on without the fixed part that develops.
In the present embodiment, the circumferential varying orientation of the high kidney window 530 and low kidney window 540.Variation range are as follows: will
511 midpoint of U-type groove was set as 12 o'clock sharps, and high kidney window 530 is 8-10 o'clock sharp, and low kidney window 540 is 1-4 o'clock sharp；Or by U-type groove
511 midpoints were set as 12 o'clock sharps, and high kidney window 530 is 2:30-4 o'clock sharp, and low kidney window 540 is 8 o'clock sharp -10:30.
It should be noted that provided with a high kidney window 530 being made of stand frame and one without branch in the present embodiment
Frame frame and the low kidney window 540 only surrounded by suture, however, the present invention is not limited thereto kind form.It is being suitable for other shape of blood vessel
Embodiment in, can also only have a branch's window being made of stand frame, it is possible to have multiple to be made of stand frame
Branch's window, or there is the branch's window being made of stand frame and multiple no stand frames simultaneously and only surrounded by suture
Branch's window, or have simultaneously multiple branch's windows being made of stand frame and one or more without stand frame and only by suturing
Branch's window etc. that line surrounds.
The endovascular stent for abdominal aorta 100 with reference to described in Fig. 6 a and Fig. 6 b further includes the high kidney being built in the rack body
Built-in channel 560 and low kidney built-in channel 570.The high kidney built-in channel 560 and low kidney built-in channel 570 are to be coated with overlay film
Channel, the high kidney built-in channel 560 is fixedly connected with the high kidney aperture 534, the low kidney built-in channel 570 with it is described
Low kidney aperture 544 is fixedly connected.The high kidney built-in channel 560 and low kidney built-in channel 570 are in 300 bracket of overlay film
Portion, can be used for guiding that blood flow flows into the high kidney arteria renalis by high kidney built-in channel 560 or low kidney built-in channel 570 and low kidney kidney is dynamic
Arteries and veins.High kidney built-in channel 560 and low kidney built-in channel 570 are respectively used to and are implanted in the company of the branch stent in the arteria renalis of two sides
It connects, specifically, branch stent can be respectively sleeved in high kidney built-in channel 560 and low kidney built-in channel 570, and due in high kidney
It sets in channel 560 and low kidney built-in channel 570 containing one section of brace sections (multistage brace sections can also be contained) so that branch's branch
Frame is closely connect with high kidney built-in channel 560 or low kidney built-in channel 570, and high kidney auxiliary stand 560 or low kidney auxiliary stand
570 is Chong Die with the region that branch stent has part.Other brackets are improved in summary and high kidney auxiliary stand 560 or low kidney are auxiliary
The leakproofness and coordinate force for helping bracket 570 to connect.
The high kidney built-in channel 560 can extend from high kidney window 530 towards the direction of the proximal end of windowing section 520, low kidney
Built-in channel 570 can extend from low kidney window 540 towards the direction of the distal end of windowing section 520.In other embodiments, described
The extending direction of high kidney built-in channel 560 and low kidney built-in channel 570 can also be other modes, for example, in the high kidney
It sets channel 560 and low kidney built-in channel 570 to extend to the direction of the distal end close to the windowing section 520, or to close
The direction of the proximal end of the windowing section 520 extends, then the direction of distal end of high kidney built-in channel 560 towards windowing section 520 prolong
It stretches, the direction of low kidney built-in channel 570 towards the proximal end of windowing section 520 extends.When specific operation, determine with different anatomic morphologicals
Surely the endovascular stent for abdominal aorta 100 of that direction is selected.
The proximal end of the main body lower section 580 is connect with the distal end of the windowing section 520.
In the present embodiment, the material for being coated on the overlay film 300 in the overlay film section 500 is PET, and it is auxiliary to be coated on the high kidney
Helping the material of bracket 560 and the overlay film 300 on the low kidney auxiliary stand 570 is EPTFE.The rack body of overlay film section 500 with
Overlay film 300 is connected by way of suture.
In the present embodiment, the release process of the endovascular stent for abdominal aorta 100 is as follows:
Firstly, the pressure of endovascular stent for abdominal aorta 100 is held in conveyer.
Secondly, endovascular stent for abdominal aorta 100 is imported into lesion locations by conveyer, position is adjusted up and down, makes to cover
It the anchorage zone of 300 bracket of film upon discharge can be identical as the normal blood vessels of lesion locations proximal end.
Again, endovascular stent for abdominal aorta 100 is discharged, after the endovascular stent for abdominal aorta 100 discharges, rack body will
Overlay film 300 is supported on normal blood vessels wall, ensure that endovascular stent for abdominal aorta 100 and being bonded between normal blood vessels.
Embodiment two
The difference between this embodiment and the first embodiment lies in the overlay film section 500 further includes bifurcated section 590 in the present embodiment.
With reference to Fig. 8, Fig. 8 is the schematic diagram of the endovascular stent for abdominal aorta in the embodiment of the present invention two, and the overlay film section 500 further includes point
Pitch section 590, the proximal end of the bifurcated section 590 connect with the distal end of the main body lower section 580, the bifurcated section 590 from proximal end to
The direction of distal end is split up into two tubulose leg structures 591.
In the present embodiment, the midpoint by U-type groove 511 was set as 12 o'clock sharps, high kidney window 530 in 14:30-15:30,
Low kidney window 540 is in 8:00-10:30.
In the present embodiment, there are three barbs for naked section 400 tool, and three barbs are fixed on naked by welding
In section 400.Described naked section 400 includes a support ring, and the support ring is wave-shaped, and the barb is fixed on the support ring
Be proximally located on the wave crest of the support ring.Certainly, in other embodiments, the barb may be located on the bracket
In the other positions of ring, described naked section 400 may also include multiple sequentially connected support rings.
In the present embodiment, it is welded on the described one end of high kidney auxiliary stand 560 far from high kidney aperture 534 for development
Gold silk.It is welded on stand frame 531 there are four the tantalum pipe for development, convenient for adjusting endovascular stent for abdominal aorta 100 in art
Position is located at high Renal vascular opening in high 530 range of kidney window.Four tantalum pipes are located next to the overlay film of window up and down
300 sutures.The top refers to that the distal end is proximate to the windowing section 520 close to the direction of the proximal end of the windowing section 520
Distal end direction.Correspondingly, being sewed on the suture wire frame 541 of the low kidney window 540, there are four the tantalum pipes for development.System
When making, PtNi alloy wire is coiled into the circle that diameter is 6mm, and together with high kidney built-in channel 560 hot melt, then by PtNi circle
It is stitched together with the overlay film 300 of high kidney window 530 and low kidney window 540.
It is wound with gold silk on the support rod of 511 two sides of U-type groove, and with suture by support rod, gold silk, PET overlay film
300 are stitched together, and make the width and depth that clearly see U-type groove 511 in art by X-ray energy.The U-type groove 511
Width refers to that the length of U-type groove 511 circumferentially, the depth of the U-type groove 511 refer to U-type groove 511 along axial length.
Embodiment three
The present embodiment provides a kind of endovascular stent for abdominal aorta system, the endovascular stent for abdominal aorta system includes high kidney
Bracket 600 and low kidney bracket 700.It is the endovascular stent for abdominal aorta system in the embodiment of the present invention three with reference to Fig. 9 and Figure 10, Fig. 9
The schematic diagram of system, Figure 10 are the partial schematic diagram of the endovascular stent for abdominal aorta system in the embodiment of the present invention three, the high kidney
Bracket 600 and the high kidney built-in channel 560 are socketed, and the low kidney bracket 700 is socketed with the low kidney built-in channel 570.
Specifically, the high kidney built-in channel 560 is fixedly connected with the high kidney window 530, the low kidney built-in channel
570 are fixedly connected with the low kidney window 540.
Since high kidney bracket 600 and low kidney bracket 700 can be respectively sleeved at high kidney auxiliary stand 560 and low kidney auxiliary stand
In 570, so that high kidney bracket 600 and low kidney bracket 700 are connect with high kidney built-in channel 560 or low kidney built-in channel 570
When, high kidney built-in channel 560 or low kidney built-in channel 570 and high kidney bracket 600 and low kidney bracket 700 have the region weight of part
It is folded, improve the sealing that high kidney bracket 600 and low kidney bracket 700 are connect with high kidney built-in channel 560 or low kidney built-in channel 570
Property and coordinate force.
The release process of the endovascular stent for abdominal aorta 100 is as follows:
Firstly, the pressure of endovascular stent for abdominal aorta 100 is held in conveyer.
Secondly, endovascular stent for abdominal aorta 100 is imported into lesion locations by conveyer, position is adjusted up and down, is adjusted
The anchor station of good 300 bracket of overlay film.
Again, part release endovascular stent for abdominal aorta 100, after 100 part of the endovascular stent for abdominal aorta release, branch
Overlay film 300 is supported on normal blood vessels wall by frame body, ensure that the patch between endovascular stent for abdominal aorta 100 and normal blood vessels
It closes.
It is again secondary, it is led respectively by the high kidney built-in channel 560 and low kidney built-in channel 570 of endovascular stent for abdominal aorta 100
Enter high kidney bracket 600 and low kidney bracket 700, establishes the channel of blood flow of abdominal aorta and branch vessel.The last overlay film of release completely
Bracket 100 and high and low kidney bracket 600 and 700 guarantee abdominal aorta and branch's blood while eliminating aneurysm rupture risk
The normal blood supply of pipe achievees the purpose that maintain abdominal aorta and important branch vascular flow unobstructed.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (11)
1. a kind of branched membrane-covered support, which is characterized in that including rack body and overlay film, the rack body include it is multiple according to
The support ring of secondary connection, the overlay film are coated on the rack body；
The branched membrane-covered support is by proximal end to distally successively including main body upper section, windowing section and main body lower section, the windowing
Section is equipped at least one first branch's window；
First branch window has stand frame, and the stand frame is surrounded by adjacent two complete support rings, is coated on
The overlay film on the stand frame is equipped with aperture, and the aperture with branch vessel for being connected to, within the scope of the stand frame
Overlay film to internal stent be recessed.
2. branched membrane-covered support as described in claim 1, which is characterized in that the main body upper section offers U-type groove, described
U-type groove provides channel for branch vessel.
3. branched membrane-covered support as claimed in claim 2, which is characterized in that the two sides of U-type groove are connected with support rod, support
Bar is connected with complete support ring.
4. branched membrane-covered support as described in claim 1, which is characterized in that the branched membrane-covered support further includes naked
Section, naked section of the distal end is connected with the proximal end of the main body upper section.
5. branched membrane-covered support as claimed in claim 4, which is characterized in that described naked section includes multiple barbs, described more
A barb is for anchoring the branched membrane-covered support.
6. branched membrane-covered support as claimed in claim 4, which is characterized in that described naked section offers window, not at naked section
When discharging completely, the width of the window is 2-5 times of other non-window sector widths.
7. branched membrane-covered support as described in claim 1, which is characterized in that the windowing section is equipped at least one second point
Branch window；
The lower bracket frame of bracket loop section and first branch's window in second branch window belongs to the same support ring, this
Part of the support ring in second branch's window is concave shape,
Overlay film in second branch window is equipped with aperture, and the aperture is used to be connected to branch vessel,
The overlay film outside overlay film and second branch window in second branch window is linked by suture.
8. the branched membrane-covered support as described in claim 1,2 or 7, which is characterized in that first branch window and/or institute
The edge for stating second branch's window and/or the U-type groove is respectively fixed with multiple development parts.
9. branched membrane-covered support as claimed in claim 1 or 7, which is characterized in that first branch window and/or described
It is equipped with built-in channel in second branch's window, the built-in channel is starting point to rack body internal stretch using the aperture.
10. branched membrane-covered support as described in claim 1, which is characterized in that the branched membrane-covered support further includes point
Section is pitched, the proximal end of the bifurcated section is connect with the distal end of the main body lower section, and the bifurcated section is divided from the direction of proximate
It opens as two tubulose leg structures.
11. a kind of branched membrane-covered support system, which is characterized in that including branch as described in any one of claim 1 to 10
Type overlay film frame and branch stent, the branch stent and first branch window and/or second branch window
Aperture connection.
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| CN201711045140.0A CN109717986B (en) | 2017-10-31 | 2017-10-31 | Branch type tectorial membrane support and branch type tectorial membrane support system |
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|---|---|---|---|
| CN201711045140.0A CN109717986B (en) | 2017-10-31 | 2017-10-31 | Branch type tectorial membrane support and branch type tectorial membrane support system |
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| CN109717986B CN109717986B (en) | 2021-07-02 |
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| CN112006811A (en) * | 2019-05-28 | 2020-12-01 | 上海创心医学科技有限公司 | Blood vessel reconstruction device |
| CN114052982A (en) * | 2020-07-29 | 2022-02-18 | 上海苏畅医疗科技有限公司 | Film-carrying support |
| CN114569301A (en) * | 2020-12-02 | 2022-06-03 | 先健科技(深圳)有限公司 | Covered stent |
| CN114569300A (en) * | 2020-12-02 | 2022-06-03 | 先健科技(深圳)有限公司 | Covered stent |
| CN114642525A (en) * | 2020-12-21 | 2022-06-21 | 先健科技(深圳)有限公司 | Covered stent |
| CN116942383A (en) * | 2023-09-19 | 2023-10-27 | 北京华脉泰科医疗器械股份有限公司 | Tectorial membrane support secondary release device and tectorial membrane support conveying system |
| CN119015011A (en) * | 2024-10-28 | 2024-11-26 | 北京华脉泰科医疗器械股份有限公司 | Abdominal aortic stent graft group |
| CN119033502A (en) * | 2024-11-01 | 2024-11-29 | 北京华脉泰科医疗器械股份有限公司 | Aortic tectorial stent and abdominal aortic tectorial stent assembly |
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| CN112006811A (en) * | 2019-05-28 | 2020-12-01 | 上海创心医学科技有限公司 | Blood vessel reconstruction device |
| CN112006811B (en) * | 2019-05-28 | 2024-02-06 | 上海创心医学科技有限公司 | A vascular reconstruction device |
| CN114052982A (en) * | 2020-07-29 | 2022-02-18 | 上海苏畅医疗科技有限公司 | Film-carrying support |
| CN114569301A (en) * | 2020-12-02 | 2022-06-03 | 先健科技(深圳)有限公司 | Covered stent |
| CN114569300A (en) * | 2020-12-02 | 2022-06-03 | 先健科技(深圳)有限公司 | Covered stent |
| CN114642525A (en) * | 2020-12-21 | 2022-06-21 | 先健科技(深圳)有限公司 | Covered stent |
| CN116942383A (en) * | 2023-09-19 | 2023-10-27 | 北京华脉泰科医疗器械股份有限公司 | Tectorial membrane support secondary release device and tectorial membrane support conveying system |
| CN116942383B (en) * | 2023-09-19 | 2023-12-15 | 北京华脉泰科医疗器械股份有限公司 | Tectorial membrane support secondary release device and tectorial membrane support conveying system |
| CN119015011A (en) * | 2024-10-28 | 2024-11-26 | 北京华脉泰科医疗器械股份有限公司 | Abdominal aortic stent graft group |
| CN119033502A (en) * | 2024-11-01 | 2024-11-29 | 北京华脉泰科医疗器械股份有限公司 | Aortic tectorial stent and abdominal aortic tectorial stent assembly |
| CN119033502B (en) * | 2024-11-01 | 2025-02-14 | 北京华脉泰科医疗器械股份有限公司 | Aortic tectorial stent and abdominal aortic tectorial stent assembly |
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