CN209004327U - A kind of aorta brain protection conduit - Google Patents
A kind of aorta brain protection conduit Download PDFInfo
- Publication number
- CN209004327U CN209004327U CN201721346721.3U CN201721346721U CN209004327U CN 209004327 U CN209004327 U CN 209004327U CN 201721346721 U CN201721346721 U CN 201721346721U CN 209004327 U CN209004327 U CN 209004327U
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- Prior art keywords
- strainer
- shrinkable
- aorta
- conduit
- brain
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Abstract
The utility model discloses a kind of aorta brains to protect conduit, including central tube, shrinkable strainer, outer tube, shrinkable strainer be by memory wire be woven into can be radially contracted reticular structure, shrinkable strainer is fixedly connected along axial with central tube, shrinkable strainer is equipped with visual indication, outer tube is placed on outside shrinkable strainer, and shrinkable strainer can be fettered or discharged along central tube back-and-forth motion, shrinkable strainer is discharged in three bifurcation of the arch of aorta, it can be bonded with aortic blood inside pipe wall perfection with stronger support force, upper three branch vessel is bent in covering, its mesh does not influence the blood perfusion of Brain circlulation, but the patch that valve intervention procedure can be prevented to generate, the clasts such as thrombus enter Brain circlulation.After strainer release is adherent, place position aorta lumen is unobstructed, does not influence seal wire, conduit, instrument and passes through.It is effectively protected the cerebrovascular in the course of surgery, keeps operation safer.It is equally applicable for the protection of internal organs at celiac branch artery.
Description
Technical field
The utility model is bright to be related to medical instruments field more particularly to a kind of aorta brain protection conduit.
Background technique
It is repaired as the operation of more and more heart valve repairs is transformed by open surgery through conduit aorta petal
(TAVR) perform the operation, TAVR perform the operation to many body weaknesses can not the patient of row open surgery bring hope.But TAVR is in hand
Also certain risk is faced with during art.In TAVR surgical procedure, it is athero- that valve replacement surgery may result in calcification, artery
The fragments such as plaque, thrombus are released to aorta, these relics many to stature can organize and organ brings serious wind
Danger, especially brain, relic flows in blood can block blood vessel, such as betide brain, will cause apoplexy and neuro-cognitive
Problem.
For studies have shown that in real world population, the total incidence of the cerebrovascular events of TAVI is 3.2%.All cerebrovasculars
The 40% of event is listed in transient ischemic attack (TIA), and 60% is listed in apoplexy.50% or more TAVI postoperative is serious
Apoplexy causes significant function to be lost.Stroke/TIA patient's hospital mortality is up to 28.9%, 1 annual death rate for 46.7% and without in
Wind/TIA patient's hospital mortality is only that 6.9%, 1 annual death rate is 18.6%.TAVI correlation stroke is the serious of clinical generation
Complication, even if causing 30 days death rates to improve five times, patient's pathogenicity rate and disability rate dramatically increase in everyday practice.Mesh
Preceding research is thought, by the patient through conduit aortic valve replacement, up to 90% patient is shown by neuroimaging after surgery
Abnormal, this is described as " asymptomatic stroke ".Recent studies have shown that the asymptomatic cerebral embolism disease that new cerebral ischemia occurs after TAVI
Become incidence and is up to 84%, and new duration clinic neurological dysfunction is up to 3% 6%.Most of silent damage influence
In 2 brain hemisphere of patient and race way.Therefore, prevent cerebrovascular complication from having important clinical meaning in TAVI art, especially
It is in high-risk patient.
Exist to solve TAVR operation in defect, aorta carotid stenosis stroke comes into being.Mainly have at present
Tetra- kinds of equipment of Embrella, Embol-X, TriGuard and Sentinel.CE certification is obtained.Recent Sentinel brain is protected
Protecting system optimizes TAVR operation for clinic by FDA approval.Embrella and Sentinel only provides truncus brachiocephalicus and a left side
The total 2 branch vessel protection of neck can not be protected comprehensively to upper three branch is bent.TriGuard can be protected to upper three branch is bent, and operation is omited
Complexity, and will occur at least 3 sets of conduit systems in interventional procedure in aorta lumen simultaneously, increase the difficulty and wind of surgical procedure
Danger.
In summary, with aorta reparation in the development of the valves interventional technique such as aorta petal and thoracic cavity
(TEVAR), left atrial appendage occlusion (LAAO) and the development through conduit mitral valve repair with displacement etc., prevention perform the operation the related cerebrovascular simultaneously
Sending out disease is important topic.It is domestic at present there has been no related equipment although there are related equipment, existing defects and deficiency in foreign countries, because
This has the novel comprehensive protection of design to bend upper three branch vessel, necessity of simple and easy carotid stenosis stroke.
Summary of the invention
The technical issues of solution: the application provides a kind of aorta brain protection conduit, is applied to the protection of the arts midbrain such as TAVI.
Three branch vessels on the arch of aorta can be protected comprehensively, calcification, atherosclerotic plaque fragment, thrombus is prevented to be released
It to aorta, and flows to the cerebrovascular and causes to block, cause stroke and neuro-cognitive problem.More presently used carotid stenosis stroke is simpler
Easily, safety.Also the intracavitary reparation (TEVAR) of aorta pectoralis, left atrial appendage occlusion (LAAO) and the brain through conduit mitral valve repair can be used
Protection and the protection of abdominal aorta internal organ branch vessel.
A kind of aorta carotid stenosis stroke, including central tube, shrinkable strainer, outer tube, the central tube are solid hopkinson bar
The center-pole of shape structure or the centre pipe of hollow tubular structure, the shrinkable strainer can edges to be woven by memory wire
The reticular structure of radial contraction, mesh size do not influence blood flow and pass through.The shrinkable strainer is fixed along axial with central tube
Connection, the shrinkable strainer are equipped with visual indication, and the outer tube is placed on outside shrinkable strainer, and can be along central tube
It is moved forward and backward to fetter or discharge shrinkable strainer, when being released at arch of aorta branch vessel, shrinkable strainer and active
Astillen fitting, and block at arch of aorta branch vessel, the clast for preventing valve interventional procedure process from generating enters the arch of aorta
Branch vessel, the outer tube is equipped with fixed device, and can be positioned on central tube by fixed device.
The elastic metallic frame that at least two is used to support shrinkable strainer, the bullet can be also equipped on the shrinkable strainer
Property metal frame be set to shrinkable strainer inner circumferential or periphery.
The both ends of the shrinkable strainer are equipped with visual indication.
The shrinkable strainer in the released state can also tapered tubulose or straight tube-like.
The shrinkable strainer be by Nitinol metal wire knitted at can be radially contracted reticular structure, when being released to
When at arch of aorta branch vessel, the blood perfusion of Brain circlulation is not influenced, but its mesh can prevent valve interventional procedure process from generating
The clasts such as patch, thrombus enter Brain circlulation, there is clinical meaning.Mesh aperture range on the shrinkable strainer is 10 ~
200 μm, it is effectively protected the cerebrovascular in the course of surgery, keeps operation safer.The shrinkable strainer is can radial contraction
Nitinol strainer has stronger support force after the shrinkable strainer release, can be bonded very well fixation with aortic blood tube wall, release
It is hollow for putting among rear, does not influence conduit, seal wire or instrument and passes through.
The outer diameter of the outer tube is 7-10F.
The front end of the centre pipe is singly curved or is in straight peen shape, and the center cavity of centre pipe can pass through seal wire or pigtail
Bar conduit etc..
The outer diameter of the centre pipe is 5-7F.
The outer diameter of the center-pole is 2-4F.
The tail end of the centre pipe is equipped with connector.
Beneficial outcomes: aorta carotid stenosis stroke provided by the utility model can by hollow tubular structure centre pipe,
It can radial contraction Nitinol strainer, outer tube composition carotid stenosis stroke.The center cavity of its centre pipe can be by leading accordingly
Pipe, seal wire, can easily discharge by outer tube or recycle metal screen.Also can by solid rod-like structure center-pole, can diameter
Carotid stenosis stroke is formed to contraction Nitinol strainer, outer tube.Strainer release can carry out three branch vessels on the arch of aorta
Protection comprehensively, the patch for preventing valve, TEVAR, LAAO and the interventional procedure process through conduit mitral valve repair and displacement etc. from generating,
The clasts such as thrombus enter cerebral vessels embolism caused by Brain circlulation, and stroke and neuro-cognitive complication can be greatly reduced.Conduit letter
Easy row improves the intervention success rate of operation such as aorta, valve, reduces operation risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram after 1 aorta brain of embodiment protects the shrinkable strainer of conduit to discharge；
Fig. 2 is the structural schematic diagram before 1 aorta brain of embodiment protects the shrinkable strainer of conduit to discharge；
Fig. 3 is that 3 aorta brain of embodiment protects the structural schematic diagram after the shrinkable strainer release of the straight tube-like of conduit；
Fig. 4 is the structural schematic diagram that 4 aorta brain of embodiment protects conduit；
Fig. 5 is the application schematic diagram that 3 aorta brain of embodiment protection conduit is released to target aortic position.
Fig. 6 is the application schematic diagram that 1 aorta brain of embodiment protection conduit is released to target aortic position.
In figure: 1 is center conduit；2 be shrinkable strainer；3 be outer tube；4 be visual indication；5 be shrinkable elasticity
Becket；6 be fixed device；7 be connector；8 be center bar.
Specific embodiment
Following embodiment further illustrates the content of the utility model, but should not be construed as a limitation of the present invention.
Without departing substantially from the spirit of the present invention and essence, to made by the utility model method, step or condition modification and
Replacement, belongs to the scope of the utility model.
Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art.
The embodiments of the present invention is explained in detail with reference to the accompanying drawing, but the utility model is not limited to
The embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
It is made a variety of changes under the premise of objective.
Embodiment 1
As shown in Figure 1, 2, a kind of aorta brain protects conduit, including centre pipe 1, shrinkable strainer 2, outer tube 3, can
Shrinking strainer 2 is by Nitinol metal wire knitted into reticular structure that can be radially contracted, and mesh size do not influence blood
Circulation.Centre pipe 1 is hollow tubular structure, and outer diameter 5F-7F, one end that centre pipe 1 is used to enter patient vessel is set as
Front end, the other end are tail end.The front end of centre pipe 1 is in single bending shape, and corresponding pipe, seal wire can pass through in centre pipe
The tail end of the chambers of the heart, centre pipe 1 is equipped with connector 7.Shrinkable strainer 2 is fixed on 1 proximal part of centre pipe, both ends along long axis
There is x line visual indication 4.Outer tube is 7-10 F in conduit outermost, 3 outer diameter of outer tube, and outer tube 3 is placed on shrinkable strainer
Outside 2, and it can be moved forward and backward along centre pipe 1 and fetter or discharge shrinkable strainer 2, when being released to arch of aorta branch vessel
When place, shrinkable strainer 2 has stronger support force, can be bonded very well with aortic blood tube wall after release, and block in aorta
Bend at branch vessel, the clasts such as patch, thrombus that valve interventional procedure process can be prevented to generate enter Brain circlulation, have clinical meaning
Justice.Shrinkable strainer can unlimited concrete shape, be subject to the branch vessel that can effectively cover at the arch of aorta, shrinkable strainer
Pore diameter range be 10 μm ~ 200 μm, the aperture of regional area is uniform on strainer.Outer tube 3 is equipped with fixed device 6
(such as fastener or nut), and can be positioned on centre pipe 1 by fixed device 6.It can be also equipped at least on shrinkable strainer 2
2 shrinkable elastic metallic rings 5 support shrinkable strainer for reinforcing.Shrinkable elastic metallic ring 5 can be set to shrinkable strainer
2 inner circumferentials or periphery.
When operation, through femoral artery with seal wire guide device at the arch of aorta, will by the label at shrinkable strainer both ends
Strainer is positioned at upper three branch vessel of bow, fixed center conduit 1, is unclamped and is fixed the recession outer tube 3 of device 6 on outer tube, releases
Shrinkable strainer 2 is put, target aorta is posted and fixed on aorta wall after shrinkable strainer expansion, and shrinkable strainer 2 covers
3 branch of Gai Gongshang (as shown in Figure 6).Seal wire, conduit, instrument can carry out interventional therapy by strainer hollow gap.Treatment end
After related equipment exits, retreats centre pipe 1 and bounce back to strainer in outer tube 3, exited in vivo in conjunction with seal wire, conduit.
Embodiment 2
A kind of aorta brain protects the conduit, including centre pipe 1, shrinkable strainer 2, outer tube 3, shrinkable strainer 2 to be
By Nitinol metal wire knitted at reticular structure that can be radially contracted, mesh size do not influence blood circulation.It leads at center
Pipe 1 is hollow tubular structure, and outer diameter 5F-7F, one end that centre pipe 1 is used to enter patient vessel is set as front end, the other end
For tail end.The front end of centre pipe 1 is in straight peen shape, and corresponding pipe, seal wire can pass through centre pipe center cavity, and center is led
The tail end of pipe 1 is equipped with connector 7.Shrinkable strainer 2 is fixed on 1 proximal part of centre pipe along long axis, and both ends have x line visual
Label 4.Outer tube is 7-10 F in conduit outermost, 3 outer diameter of outer tube, and outer tube 3 is placed on outside shrinkable strainer 2, and can edge
Centre pipe 1 be moved forward and backward to fetter or discharge shrinkable strainer 2, when being released at arch of aorta branch vessel, can receive
Contracting strainer 2 has stronger support force, can be bonded very well with aortic blood tube wall after release, and block in arch of aorta branch vessel
Place, the clasts such as patch, thrombus that valve interventional procedure process can be prevented to generate enter Brain circlulation, have clinical meaning.Shrinkable filter
Unlimited concrete shape is netted, is subject to the branch vessel that can effectively cover at the arch of aorta, the pore diameter range of shrinkable strainer is
10 μm ~ 200 μm, the aperture of regional area is uniform on strainer.Outer tube 3 is equipped with fixed device 6(such as fastener or spiral shell
It is female), and can be positioned on centre pipe 1 by fixed device 6.The shrinkable elasticity of at least two can be also equipped on shrinkable strainer 2
Becket 5 supports shrinkable strainer for reinforcing.Shrinkable elastic metallic ring 5 can be set to shrinkable 2 inner circumferential of strainer or periphery.
Embodiment 3
As shown in figure 3, a kind of aorta brain protects conduit, including centre pipe 1, shrinkable strainer 2, outer tube 3, can receive
Contracting strainer 2 is by Nitinol metal wire knitted into reticular structure that can be radially contracted, and mesh size do not influence blood stream
It is logical.Centre pipe 1 is hollow tubular structure, outer diameter 5F-7F, before centre pipe 1 is used to be set as into one end of patient vessel
End, the other end is tail end.In straight peen or single bending shape, corresponding pipe, seal wire can pass through center and lead for the front end of centre pipe 1
The tail end of tube hub chamber, centre pipe 1 is equipped with connector 7.Shrinkable strainer 2 is fixed on 1 proximal part of centre pipe along long axis,
There is x line visual indication 4 at both ends.Outer tube is 7-10 F in conduit outermost, 3 outer diameter of outer tube, and outer tube 3 is placed on shrinkable
It outside strainer 2, and can be moved forward and backward along centre pipe 1 to fetter or discharge shrinkable strainer 2, shrinkable strainer 2 is in expansion shape
Tapered tubulose or straight tube-like under state have stronger support force after strainer release, can be bonded very well fixation with aortic blood tube wall, release
It is hollow for putting among rear, and other conduits, instrument can pass through.When being released at arch of aorta branch vessel, shrinkable filter
Net 2 can effective over firmly arch of aorta branch vessel, clasts such as patch, thrombus that valve interventional procedure process can be prevented to generate into
Enter Brain circlulation.The pore diameter range of shrinkable strainer is 10 μm ~ 200 μm, and the aperture of strainer regional area is uniformly, no
Influence the blood perfusion of Brain circlulation.Outer tube 3 is equipped with fixed device 6(such as fastener or nut), and fixed device 6 can be passed through
It is positioned on centre pipe 1.The shrinkable elastic metallic ring 5 of at least two can be also equipped on shrinkable strainer 2, being used to support can receive
Contracting strainer.Shrinkable elastic metallic ring 5 can be set to shrinkable 2 inner circumferential of strainer or periphery.
When operation, through femoral artery with seal wire guide device at the arch of aorta, will by the label at shrinkable strainer both ends
Strainer is positioned at upper three branch vessel of bow, fixed center conduit 1, is unclamped and is fixed the recession outer tube 3 of device 6 on outer tube, releases
Shrinkable strainer 2 is put, target aorta is posted and fixed on aorta wall after shrinkable strainer 2 expands, and strainer covering bends upper 3
Branch (as shown in Figure 5).Seal wire, conduit, instrument can carry out interventional therapy by strainer hollow gap.Treatment end related equipment
After exiting, retreats centre pipe 1 and bounce back to strainer in outer tube 3, exited in vivo in conjunction with seal wire, conduit.
Embodiment 4
As shown in figure 4, a kind of aorta brain protects conduit, the center-pole including solid rod-like structure made of Nitinol
8, shrinkable strainer 2, outer tube 3, the outer diameter of center-pole 8 are 2-4F, shrinkable strainer 2 be by Nitinol metal wire knitted at
Reticular structure that can be radially contracted, mesh size do not influence blood circulation.Center-pole 8 is used for one end into patient vessel
It is set as front end, the other end is tail end.Shrinkable strainer 2 is fixed on 8 proximal part of center-pole along long axis, and there is x line visuality mark at both ends
Note 4.For outer tube in conduit outermost, 3 outer diameter of outer tube is 7-10 F, and outer tube 3 is placed on outside shrinkable strainer 2, and can be along
Center-pole 8 is moved forward and backward to fetter or discharge shrinkable strainer 2, and shrinkable strainer 2 has stronger support force, tapered after release
Tubulose or straight tube-like, can and aortic blood tube wall be bonded fixation very well, after release it is intermediate be it is hollow, other conduits, instrument can be suitable
Benefit passes through.The pore diameter range of strainer is 10 μm ~ 200 μm, and the aperture of strainer regional area is uniform.Strainer 2, which is worked as, to be released to
When at arch of aorta branch vessel, do not influence the blood perfusion of Brain circlulation, but can prevent valve interventional procedure process generate patch,
The clasts such as thrombus enter Brain circlulation.Outer tube 3 is equipped with fixed device 6(such as fastener or nut), and fixed device 6 can be passed through
It is positioned on center-pole 8.The shrinkable elastic metallic ring 5 of at least two can be also equipped on shrinkable strainer 2, it can for reinforcing support
Shrink strainer.Shrinkable elastic metallic ring 5 can be set to shrinkable 2 inner circumferential of strainer or periphery.
The major advantage of the utility model is to protect to three branch vessels on the arch of aorta, reduces aorta, valve
Cerebrovascular disease occurs in film interventional procedure.One tube multipurpose can be reached by seal wire, conduit by using simultaneously as conduit, reduce intervention
Simultaneous conduit quantity in aorta lumen, simple and easy to do in art, improves success rate of operation, reduces operation risk.
Claims (10)
1. a kind of aorta brain protects conduit, it is characterised in that: described including central tube, shrinkable strainer (2), outer tube (3)
Central tube is the center-pole (8) of solid rod-like structure or the centre pipe (1) of hollow tubular structure, the shrinkable strainer (2)
For by memory wire be woven into can be radially contracted reticular structure, mesh size does not influence blood flow and passes through, described to receive
Contracting strainer (2) is fixedly connected along axial direction with central tube, and the shrinkable strainer (2) is equipped with visual indication (4), the housing
Pipe (3) is placed on shrinkable strainer (2) outside, and can fetter or discharge shrinkable strainer (2) along central tube back-and-forth motion, when releasing
When being put at arch of aorta branch vessel, shrinkable strainer (2) is bonded with aorta wall, and blocks in arch of aorta branch vessel
Place, the clast for preventing valve interventional procedure process from generating enter arch of aorta branch vessel, and the outer tube (3) is equipped with fixed dress
It sets (6), and can be positioned on central tube by fixed device (6).
2. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: on the shrinkable strainer (2)
It can be also equipped with the elastic metallic frame (5) that at least two is used to support shrinkable strainer, the elastic metallic frame (5) is set to shrinkable
Strainer (2) inner circumferential or periphery.
3. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: the shrinkable strainer (2)
Both ends are equipped with visual indication (4).
4. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: the shrinkable strainer (2) exists
It can also tapered tubulose or straight tube-like under release conditions.
5. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: the shrinkable strainer (2)
Mesh aperture range is 10 ~ 200 μm.
6. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: the outer diameter of the outer tube (3)
For 7-10F.
7. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: the outer diameter of the center-pole (8)
For 2-4F.
8. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: before the centre pipe (1)
End is single curved or is in straight peen shape, and the center cavity of centre pipe (1) can pass through seal wire or pigtail catheter.
9. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: outside the centre pipe (1)
Diameter is 5-7F.
10. a kind of aorta brain according to claim 1 protects conduit, it is characterised in that: the tail of the centre pipe (1)
End is equipped with connector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721346721.3U CN209004327U (en) | 2017-10-19 | 2017-10-19 | A kind of aorta brain protection conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721346721.3U CN209004327U (en) | 2017-10-19 | 2017-10-19 | A kind of aorta brain protection conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209004327U true CN209004327U (en) | 2019-06-21 |
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ID=66827127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721346721.3U Expired - Fee Related CN209004327U (en) | 2017-10-19 | 2017-10-19 | A kind of aorta brain protection conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209004327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839806A (en) * | 2020-07-31 | 2020-10-30 | 上海心玮医疗科技有限公司 | High-compliance plug protector and filter screen manufacturing method thereof |
| CN112022425A (en) * | 2020-09-11 | 2020-12-04 | 复旦大学附属中山医院 | Thrombus filter device |
-
2017
- 2017-10-19 CN CN201721346721.3U patent/CN209004327U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839806A (en) * | 2020-07-31 | 2020-10-30 | 上海心玮医疗科技有限公司 | High-compliance plug protector and filter screen manufacturing method thereof |
| CN112022425A (en) * | 2020-09-11 | 2020-12-04 | 复旦大学附属中山医院 | Thrombus filter device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |