CN207412267U - A kind of aorta tectorial membrane stent - Google Patents
A kind of aorta tectorial membrane stent Download PDFInfo
- Publication number
- CN207412267U CN207412267U CN201720169886.1U CN201720169886U CN207412267U CN 207412267 U CN207412267 U CN 207412267U CN 201720169886 U CN201720169886 U CN 201720169886U CN 207412267 U CN207412267 U CN 207412267U
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- CN
- China
- Prior art keywords
- support ring
- stent
- tectorial membrane
- fracture
- aorta tectorial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Be specifically a kind of aorta tectorial membrane stent the utility model is related to the field of medical instrument technology, including support ring and overlay film, by first support ring of the aorta tectorial membrane stent head end, form fracture at least one support ring.The beneficial effects of the utility model are：1st, reduce the gap between chimney stent, aorta tectorial membrane stent and sustainer inner wall, reduce the generation of interior leakage；2nd, compressing of the aorta tectorial membrane stent to chimney stent is reduced, it is unobstructed to ensure that chimney stent channel of blood flow continues；3rd, so that aorta tectorial membrane stent and sustainer inner wall docile are closer, so as to effectively avoid the generation of interior leakage.
Description
Technical field
The utility model is related to the field of medical instrument technology, are specifically a kind of aorta tectorial membrane stent.
Background technology
With the development of intracavitary technology, the application of intravascular stent is more and more.The interlayer at arch of aorta position and dynamic in the past
Arteries and veins knurl can only be treated by conventional surgical techniques or hybridization technique, can be by discharging the side of aorta tectorial membrane stent
Method achievees the purpose that minimally-invasive treatment, and therapeutic effect is good, and postoperative complication is few.
At present, in order to not influence the blood supply of important branch blood vessel while cut is completely cut off, usually covered in sustainer
One or more " chimney " stents are discharged between membrane support and sustainer inner wall, the blood flow for forming important branch blood vessel leads to
Road, this ensures that can not be hidden while aorta tectorial membrane stent covering artery dissection cut or isolation aortic aneurysm chamber again
Lid important branch blood vessel.But there are two shortcomings for the technology of " chimney " stent at present：1) chimney stent is located at sustainer overlay film
Between stent and sustainer inner wall, cause to cause there are gap between aorta tectorial membrane stent, chimney stent and active blood vessel wall
Interior leakage occurs；2) since aorta tectorial membrane stent radial support power is strong compared with chimney stent, oppressing chimney stent for a long time causes cigarette
Chimney stent compression, deformation even be broken, and then cause branch's channel of blood flow section become smaller or channel of blood flow occlusion, so as to influence weight
The blood circulation of branch vessel is wanted, causes body region of interest ischemic.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of reduction chimney stent, sustainer covers
Gap between membrane support and sustainer inner wall reduces the generation of interior leakage and reduces aorta tectorial membrane stent to chimney stent
Compressing ensures that chimney stent channel of blood flow continues unobstructed aorta tectorial membrane stent.
In order to achieve the above object, the utility model provides a kind of aorta tectorial membrane stent, including support ring and overlay film,
By first support ring of the aorta tectorial membrane stent head end, at least one or more than one support ring continuously disconnects shape
Into fracture, the incision position covers overlay film.The aortic stents of incision position only have overlay film, without the active force of support ring, that is, prop up
What the support ring and several complete support rings that pushing out ring is continuously disconnected by one or more formed, and these are disconnected
The support ring opened makes stent form a fracture, goes out to be coated with overlay film in fracture and support ring.It is released first at the arch of aorta
Put the aorta tectorial membrane stent, the presence of fracture make to have reserved between the aorta tectorial membrane stent and active blood vessel wall for into
Enter the space of the chimney stent in branch vessel, ensure that chimney stent is not blocked, so as to ensure that important branch vessel
Supply of blood flow.Because a part of of chimney stent discharged in branch vessel must be discharged in sustainer, due to fracture
Presence, go out the fracture that the chimney stent is just connected to aorta tectorial membrane stent, chimney stent and sustainer overlay film branch
It is bonded closely between frame, while but also aorta tectorial membrane stent and sustainer inner wall docile are closer, so as to effectively avoid
The generation of interior leakage.In addition, being contacted by the overlay film of aorta tectorial membrane stent incision position with chimney rack surface, chimney branch is acted on
The radial support power of frame is smaller, has reduced compressing of the aortic stents to chimney stent to the greatest extent, remote so as to evade to greatest extent
The compression of phase chimney stent, deformation, fracture cause the affected risk of branch's blood flow, convenient for chimney stent by reducing chimney
Gap between stent, aorta tectorial membrane stent and sustainer inner wall reduces the generation of interior leakage and reduces sustainer overlay film branch
Compressing of the frame to chimney stent ensures that chimney stent channel of blood flow continues unobstructed aorta tectorial membrane stent.
Preferably, number >=2 of the support ring with fracture, these support rings connect on the overlay film frame
Continuous arrangement；
The overlay film for being covered in the incision position of these support rings is presented to concave recessed at the aorta tectorial membrane stent center
Slot.
It is only covered from first with the support ring of fracture to the last one support ring with fracture in the sustainer
Continuous arrangement on membrane support.These support rings with fracture are arranged together, and make the aorta tectorial membrane stent on the whole
The notch of a strip is provided with, by the overlay film being covered in support ring, forms the surface of the aorta tectorial membrane stent
The groove of at least one strip.After the aorta tectorial membrane stent discharges at the arch of aorta, the presence of groove makes the active
It has been reserved between arteries and veins overlay film frame and active blood vessel wall for entering the space of the chimney stent in branch vessel, so as to ensure that
The supply of blood flow of important branch vessel.Because discharging a part of of the chimney stent in branch vessel must discharge actively
In arteries and veins, due to the presence of groove, the chimney stent is made to be exactly between the groove of aorta tectorial membrane stent and sustainer, cigarette
Be bonded between chimney stent and aorta tectorial membrane stent it is close, while but also aorta tectorial membrane stent with sustainer inner wall docile more
Closely, so as to effectively avoiding the generation of interior leakage.In addition, pass through the groove on aorta tectorial membrane stent surface and chimney rack surface
Contact, eliminates support ring herein, and it is smaller to act on the radial support power of chimney stent, has reduced aortic stents pair to the greatest extent
The compressing of chimney stent is compressed so as to evade chimney stent at a specified future date to greatest extent, deformed, fracture causes branch's blood flow to be subject to shadow
Loud risk.
Preferably, the depth of the groove by first support ring of stent head end to the last one with fracture
It is only gradually become shallower as at support ring.The depth of groove of gradual change design so that aortic stents end groove depth most
Deep, the depth shallower of the aortic stents at bifurcated artery makes chimney stent preferably take advantage of a situation by and is fixed on actively
Arteries and veins rack groove goes out between the arch of aorta.
Preferably, the groove is reversed along the axial line of the aorta tectorial membrane stent.According to different patients'
The aorta tectorial membrane stent that groove is reversed with the axial line of aorta tectorial membrane stent may be selected in blood vessel feature, generates more preferable
Surgical effect.
Preferably, the number of the groove is 1-3.It can be according to the number for the branch vessel being actually implanted into, to select
Aorta tectorial membrane stent with 1-3 groove.Groove can be realized by carrying out the production methods such as hot pressing, 3D printing to overlay film
Structure.
Preferably, connected between the adjacent support ring with fracture by crossover.
Preferably, the support ring with fracture is respectively provided with a left end point and a right endpoint, in these supports
In ring：
Left end point of the left end point of odd-level support ring respectively with its next layer of support ring is connected by crossover；
Right endpoint of the right endpoint of even level support ring respectively with its next layer of support ring is connected by crossover.
Preferably, connected between the support ring of described adjacent support ring and complete closure with fracture by crossover
It connects.The crossover is fine wire, by the connection of crossover, not only ensure that the bonding strength between support ring and support ring, but also
It can not influence opposite elasticity activity.By overlay film between the support ring of remaining complete closure, aorta tectorial membrane stent ensure that
The free camber of the other end (i.e. groove opposite end).
Preferably, the support ring is equipped with development in the end of its fracture and identifies.Development mark preferably see by identification
Examine surgical effect.
Preferably, the radian r of the support ring with fracture is 4/5-15/16；
The length of the groove accounts for the 1/3-2/3 of the length of entire overlay film frame.The radian of support ring with fracture
And the length of groove accounts for the length of entire overlay film frame and can be designed according to the actual conditions of patient.
This aorta tectorial membrane stent is suitable for the intracavitary minimally-invasive treatment of aortic arch disease.
The beneficial effects of the utility model are：1st, reduce between chimney stent, aorta tectorial membrane stent and sustainer inner wall
Gap, reduce in leakage generation；2nd, compressing of the aorta tectorial membrane stent to chimney stent is reduced, ensures that chimney stent blood flow leads to
Road continues unobstructed；3rd, so that aorta tectorial membrane stent and sustainer inner wall docile are closer, so as to effectively avoid the hair of interior leakage
It is raw.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is another structure diagram of the utility model；
Fig. 3 is the another structure diagram of the utility model；
Fig. 4 is another structure diagram of the utility model.
Wherein：
1- support ring 11- fracture 2- overlay films
21- groove 3- crossovers 4- development marks
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Embodiment 1：
A kind of aorta tectorial membrane stent, including support ring 1 and overlay film 2, first of the aorta tectorial membrane stent head end
Support ring 101 disconnects and forms fracture 11.
The aortic stents of incision position only have overlay film, without the active force of support ring.Institute is discharged first at the arch of aorta
Aorta tectorial membrane stent is stated, the presence of fracture makes to have reserved to divide for entering between the aorta tectorial membrane stent and active blood vessel wall
The space of chimney stent in branch vessel ensure that chimney stent is not blocked, so as to ensure that the blood of important branch vessel
Stream supply.Because a part of of chimney stent discharged in branch vessel must be discharged in sustainer, due to depositing for fracture
, go out the fracture that the chimney stent is just connected to aorta tectorial membrane stent, chimney stent and aorta tectorial membrane stent it
Between be bonded close, while but also aorta tectorial membrane stent and sustainer inner wall docile are closer, so as to effectively avoid interior leakage
Generation.In addition, being contacted by the overlay film of aorta tectorial membrane stent incision position with chimney rack surface, chimney stent is acted on
Radial support power is smaller, has reduced compressing of the aortic stents to chimney stent to the greatest extent, so as to evade cigarette at a specified future date to greatest extent
The compression of chimney stent, deformation, fracture cause the affected risk of branch's blood flow, convenient for chimney stent by, reduce chimney stent,
Gap between aorta tectorial membrane stent and sustainer inner wall reduces the generation of interior leakage and reduces aorta tectorial membrane stent to cigarette
The compressing of chimney stent ensures that chimney stent channel of blood flow continues unobstructed aorta tectorial membrane stent.
Embodiment 2：
A kind of aorta tectorial membrane stent as shown in Figure 1, including support ring 1 and overlay film 2, by the aorta tectorial membrane stent
First support ring 101 of head end rises, and there are six fracture 11 is formed in support ring 1, these support rings 1 are on the overlay film frame
Continuous arrangement；
The overlay film 2 at the fracture 11 of these support rings 1 is covered in present to recess at the aorta tectorial membrane stent center
Groove 21.
Stop from first support ring 101 with fracture 11 to the 6th support ring 109 with fracture 11, this six
The continuous arrangement on the aorta tectorial membrane stent of support ring 1.These support rings 1 with fracture 11 are arranged together, and make institute
The notch that aorta tectorial membrane stent is provided with a strip on the whole is stated, by the overlay film 2 being covered in support ring 1, makes institute
The surface for stating aorta tectorial membrane stent forms the groove of at least one strip.Treat the aorta tectorial membrane stent at the arch of aorta
After release, the presence of groove makes to have reserved to enter in branch vessel between the aorta tectorial membrane stent and active blood vessel wall
The space of chimney stent, so as to ensure that the supply of blood flow of important branch vessel.Because discharge the chimney in branch vessel
The a part of of stent must be discharged in sustainer, due to the presence of groove, the chimney stent is made to be exactly in sustainer and is covered
Between the groove and sustainer of membrane support, it is bonded closely between chimney stent and aorta tectorial membrane stent, while but also actively
Arteries and veins overlay film frame and sustainer inner wall docile are closer, so as to effectively avoid the generation of interior leakage.In addition, pass through sustainer overlay film
The groove of rack surface is contacted with chimney rack surface, eliminates support ring herein, acts on the radial support of chimney stent
Power is smaller, has reduced compressing of the aortic stents to chimney stent to the greatest extent, so as to evade chimney stent pressure at a specified future date to greatest extent
Contracting, deformation, fracture cause the affected risk of branch's blood flow.
This aorta tectorial membrane stent is suitable for the intracavitary minimally-invasive treatment of aortic arch disease.
The branch that the depth of the groove 21 has fracture 11 by first support ring 101 of stent head end to the 6th
It is only gradually become shallower as at pushing out ring 109.
The number of the groove 21 is 1.The aorta tectorial membrane stent of the structure can be applied to 1. descending aorta interlayer
(interlayer cut is in descending aorta), interlayer lesion are extended to proximal part within left subclavian artery opening 1.5cm regions；2. it presss from both sides
Layer cut is located near left subclavian artery plane of the opening.Main body rack proximal anchor is due to left common carotid artery plane of the opening and left lock
Under bone between arterial ostium plane, groove can place chimney stent (the chimney stent other end is put into left subclavian artery), and two
It combines closely after person's combination, can both realize closure interlayer cut (cut of descending aorta section and the arch of aorta), recover blood flow
Passage, and ensure the supply of blood flow of arch of aorta top set blood vessel, and the generation of leakage in near-end is avoided to greatest extent.
It, can be with groove 21 as shown in Figure 3 along institute when chimney stent is positioned between main body rack and AoPW
State the aorta tectorial membrane stent that the axial line of aorta tectorial membrane stent is reversed clockwise；When chimney stent is positioned over main body branch
When between frame and aortic anterior wall, it can be carried out with the axial line of groove 21 as shown in Figure 1 along the aorta tectorial membrane stent inverse
The aorta tectorial membrane stent of hour hands torsion.
The support ring 1 with fracture 11 is respectively provided with a left end point and a right endpoint, in these support rings 1
In：
The left end point of the support ring 101 of first layer and the left end point of the support ring 1 of the second layer are connected by crossover 3；
The left end point of the support ring 1 of third layer is connected with the left end point of the 4th layer of support ring 1 by crossover 3；
The left end point of the support ring 1 of layer 5 and the left end point of the support ring 109 of layer 6 are connected by crossover 3；
The right endpoint of the support ring 1 of the second layer and the right endpoint of the support ring 1 of third layer are connected by crossover 3；
The right endpoint of 4th layer of support ring 1 and the right endpoint of the support ring 1 of layer 5 are connected by crossover 3；
It is connected between the support ring 1 of the right endpoint of 4th layer of support ring 1 and the 4th layer of complete closure by crossover 3.
The support ring 1 is equipped with development mark 4 in the end of its fracture 11.
The radian r of the support ring 1 with fracture 11 is 4/5；
The length of the groove 21 accounts for the 1/3 of the length of entire overlay film frame.
After aortic stents are discharged, branch stent is discharged, release after funnel stent cross section is as schemed, endaortic blood
Stream is out of aortic stents by the way that branch's blood flow is from chimney stent by maintaining blood supply.Sustainer is directly the same as excessively recessed simultaneously
Slot is closely inlayed with two chimney stents to be encircled, and active blood vessel wall, aortic stents and chimney stent do not have gap, will not occur
Interior leakage；Extrusion effect reduction of the aortic stents to chimney stent simultaneously avoids chimney stent is at a specified future date compression, deformation occurs and breaks
It splits.
Embodiment 3：
, with embodiment 2, the number of the groove 21 is 2 for remaining.The aorta tectorial membrane stent of the structure can be applied to
1. descending aorta interlayer (interlayer cut is in descending aorta), interlayer lesion extend to left common carotid artery opening 1.5cm to proximal part
Within region；2. interlayer cut is located near left common carotid artery plane of the opening.Main body rack proximal anchor is put down due to truncus brachiocephalicus opening
Between face between left common carotid artery plane of the opening, groove can place chimney stent, and (the chimney stent other end is put into left neck and always moves
In arteries and veins and left subclavian artery), it combines closely after the two combination, can both realize closure interlayer cut (descending aorta section and master
The cut of the arch of aorta), recover channel of blood flow, and ensure the supply of blood flow of arch of aorta top set blood vessel, and avoid to greatest extent
The generation of leakage in near-end.
It, can be with groove 21 as shown in Figure 4 along institute when chimney stent is positioned between main body rack and AoPW
State the aorta tectorial membrane stent that the axial line of aorta tectorial membrane stent is reversed clockwise；When chimney stent is positioned over main body branch
When between frame and aortic anterior wall, it can be carried out with the axial line of groove 21 as shown in Figure 2 along the aorta tectorial membrane stent inverse
The aorta tectorial membrane stent of hour hands torsion.
The preferred embodiment created to the utility model above is illustrated, but the utility model is created not
It is limited to the embodiment described, those skilled in the art can be on the premise of without prejudice to the utility model creative spirit
A variety of equivalent modifications or replacement is made, these equivalent modifications or replacement are all contained in the model that the application claim is limited
In enclosing.
Claims (10)
1. a kind of aorta tectorial membrane stent, including support ring (1) and overlay film (2), which is characterized in that by the sustainer overlay film branch
First support ring (101) of frame head end is risen, and at least one or more than one support ring (1) continuously disconnects and forms fracture
(11), overlay film (2) is covered at the fracture (11).
2. aorta tectorial membrane stent according to claim 1, which is characterized in that the support ring with fracture (11)
(1) number >=2 are covered in the overlay film (2) at the fracture (11) of these support rings (1) and present to the sustainer overlay film branch
Concave groove (21) at frame center.
3. aorta tectorial membrane stent according to claim 2, which is characterized in that the depth of the groove (21) is by bracket head
It is risen at first support ring (101) at end to only gradually becoming shallower as at the last one support ring (109) with fracture (11).
4. aorta tectorial membrane stent according to claim 2, which is characterized in that the groove (21) is along the sustainer
The axial line of overlay film frame is reversed.
5. aorta tectorial membrane stent according to claim 2, which is characterized in that the number of the groove (21) is 1-3
It is a.
6. aorta tectorial membrane stent according to claim 2, which is characterized in that described adjacent have fracture (11)
It is connected between support ring by crossover (3).
7. aorta tectorial membrane stent according to claim 2, which is characterized in that the support ring with fracture (11)
(1) left end point and a right endpoint are respectively provided with, in these support rings (1)：
The left end point of odd-level support ring (1) is connected respectively with the left end point of its next layer of support ring (1) by crossover (3)；
The right endpoint of even level support ring (1) is connected respectively with the right endpoint of its next layer of support ring (1) by crossover (3).
8. overlay film frame according to claim 2, which is characterized in that support of the last one adjacent with fracture (11)
It is connected between ring (109) and the support ring (121) of the complete closure near the support ring (109) by crossover (3).
9. overlay film frame according to claim 1, which is characterized in that the support ring (1) is at the end of its fracture (11)
Development mark (4) is equipped at portion.
10. overlay film frame according to claim 2, which is characterized in that the support ring (1) with fracture (11)
Radian r is 4/5-15/16；
The length of the groove (21) accounts for the 1/3-2/3 of the length of entire overlay film frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169886.1U CN207412267U (en) | 2017-02-24 | 2017-02-24 | A kind of aorta tectorial membrane stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169886.1U CN207412267U (en) | 2017-02-24 | 2017-02-24 | A kind of aorta tectorial membrane stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207412267U true CN207412267U (en) | 2018-05-29 |
Family
ID=62398581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720169886.1U Withdrawn - After Issue CN207412267U (en) | 2017-02-24 | 2017-02-24 | A kind of aorta tectorial membrane stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207412267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963515A (en) * | 2017-02-24 | 2017-07-21 | 上海长海医院 | A kind of aorta tectorial membrane stent |
| CN110420075A (en) * | 2019-06-27 | 2019-11-08 | 深圳市先健畅通医疗有限公司 | Overlay film frame |
-
2017
- 2017-02-24 CN CN201720169886.1U patent/CN207412267U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963515A (en) * | 2017-02-24 | 2017-07-21 | 上海长海医院 | A kind of aorta tectorial membrane stent |
| CN110420075A (en) * | 2019-06-27 | 2019-11-08 | 深圳市先健畅通医疗有限公司 | Overlay film frame |
| CN110420075B (en) * | 2019-06-27 | 2022-04-05 | 深圳市先健畅通医疗有限公司 | Covered stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180529 Effective date of abandoning: 20181218 |