CN110314017A - The aorta petal bracket being implanted into through conduit - Google Patents
The aorta petal bracket being implanted into through conduit Download PDFInfo
- Publication number
- CN110314017A CN110314017A CN201910623344.0A CN201910623344A CN110314017A CN 110314017 A CN110314017 A CN 110314017A CN 201910623344 A CN201910623344 A CN 201910623344A CN 110314017 A CN110314017 A CN 110314017A
- Authority
- CN
- China
- Prior art keywords
- bottomless
- bracket
- conduit
- implanted
- aorta petal
- 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.)
- Pending
Links
- 210000000709 aorta Anatomy 0.000 title claims abstract description 37
- 210000001765 aortic valve Anatomy 0.000 claims abstract description 24
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 229910000967 As alloy Inorganic materials 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002513 implantation Methods 0.000 description 3
- 210000005240 left ventricle Anatomy 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 206010002906 aortic stenosis Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 210000003157 atrial septum Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 1
- 210000003102 pulmonary valve Anatomy 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000009256 replacement therapy Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
- A61F2/2418—Scaffolds therefor, e.g. support stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/2466—Delivery devices therefor
Abstract
The aorta petal bracket being implanted into through conduit, including the bottomless net grid support of ring-type made of being woven as alloy material and aortic valve, the bottomless net grid support of ring-type is strutted by air bag expansion, aortic valve is set in cyclic annular bottomless net grid support, and the bottomless net grid support of ring-type is equipped with self-expanding location structure.Aorta petal bracket provided by the invention, by the location structure in self-expanding area, can in aorta precise positioning, while facilitating the position that bracket is optimized and revised in doctor's art.Unexpected displacement during effectively reducing because of bracket release, to improve operation safety.
Description
Technical field
The invention belongs to through conduit aorta petal implantation valve bracket technical field, and in particular to a kind of to be implanted into through conduit
Aorta petal bracket.
Background technique
Aorta petal is semilunar valve, between left ventricle and aorta, the blood flow for injecting aorta is inhibited to pass back into a left side
Ventricle is similar to pulmonary valve on morphology.Because being in center, aorta petal and each chambers of the heart and valve relationship are close
It cuts.Percutaneous aortic valve replacement art is the minimally invasive valve replacement technology of research and development and the one kind used completely newly, and English is entitled
Percutaneous Aortic Valve Replacement, PAVR.Since valve sets valve unlike surgical operation
It swaps out and, so being otherwise known as through conduit aorta petal implantation (Transcatheter aortic valve
Implantation, TVAI).The several scholars such as existing Andersen successively report percutaneous aortic valve and set from 1992
The animal experiment changed, and merging instrument is gradually improved.Charles Robert Richet A. Cribier is first to human body PAVR within 2002
Treatment.PAVR approach includes direct motion method (through venipuncture atrial septum through atrium sinistrum-bicuspid valve-left ventricle approach), Retrograde (stock
Artery-aorta path) and through apex of the heart method.The main indication of PAVR are as follows: 1. Symptomatic severe aortic stenosis (valve
Open area < 1cm2) ;2. heart of Europe operation risk scores, (EuroSCORE) >=20 % or U.S.'s breast surgery can be dangerous
(STS) score >=10 %.The clinical selected patients overwhelming majority be because advanced age (> 70-75 years old), there are serious complication due to cannot
The patient of row surgical operation.
Up to now, the whole world has a large amount of patients and receives percutaneous aortic valve film replacement therapy.Recently research is reported
Case load is more next more, and surgical effect is also more and more encouraging.The PAVR success rate as the result is shown for the large-scale PAVR research delivered
Very high (between 93.3%-98.4%), 30 days death rate 8.5%-12.7%.PAVR has been achieved for relatively satisfactory in clinical application
Effect but still there are many problem have it is to be solved.It is bracket location difficulty first, existing bracket is difficult to adjust upon discharge, simultaneously
There are displacements to fall off, to slide into serious risk in left ventricle or aorta.
Summary of the invention
The technical issues of solution: the present invention provides a kind of aorta petal bracket being implanted into through conduit, which was discharging
Cheng Zhong can freely adjust releasing position relatively, provide solution for precisely setting bracket.It effectively reduces because of bracket
Unexpected displacement during release, caused risk.
Technical solution: a kind of aorta petal bracket being implanted into through conduit, including ring-type nothing made of being woven as alloy material
Bottom net grid support and aortic valve, the bottomless net grid support of ring-type are strutted by air bag expansion, and aortic valve is set to ring
In the bottomless net grid support of shape, the bottomless net grid support of ring-type is equipped with self-expanding location structure.
Preferably, above-mentioned self-expanding location structure is the 2-5 root U-shaped of the center symmetric setting on cyclic annular bottomless net grid support
Cylinder.
It is further preferred that above-mentioned U-shaped cylinder is 3.
" J " shape warp architecture that above-mentioned U-shaped cylinder is equipped with extension and is connected with extension.
The above-mentioned bottomless net grid support of ring-type is connected in sequence by least two rows of mesh by metal wire, wherein nearly aorta
The first row mesh aperture at end be greater than heel row mesh aperture, the self-expanding location structure between adjacent heel row mesh share
Extend on side.
The high 6mm of first row mesh at above-mentioned nearly aorta end, metal wire length 1mm, the high 5mm of heel row mesh, adjoining cells it
Between shared side length 1mm, the long 16mm of self-expanding location structure.
When aortic valve is having a size of 20mm, the height after cyclic annular bottomless grid stent expansion is 15mm；Work as aorta
When valve size is 23mm, the height after cyclic annular bottomless grid stent expansion is 17.5mm；When aortic valve is having a size of 26mm
When, the height after cyclic annular bottomless grid stent expansion is 20mm；When aortic valve is having a size of 29mm, cyclic annular bottomless grid branch
Height after frame expansion is 22.5mm.
Conveying device containing above-mentioned aorta petal bracket.
Beneficial outcomes: aorta petal bracket provided by the invention can be actively by the location structure in self-expanding area
Precise positioning in arteries and veins, while facilitating the position that bracket is optimized and revised in doctor's art.It effectively reduces because during bracket release
Unexpected displacement, to improve operation safety.
Detailed description of the invention
Fig. 1 is the structure train of thought schematic diagram after present invention expansion completely.
Fig. 2 is the structure train of thought schematic diagram of contraction state of the present invention.
Fig. 3 is the side view of U-shaped cylinder.
Fig. 4 is the structural framework perspective view after present invention expansion completely.
Fig. 5 is the structural framework perspective view of contraction state of the present invention.
Fig. 6 is the scale diagrams of the cyclic annular bottomless net grid support of the present invention.
Fig. 7 is the use schematic diagram of the conveying device of aorta petal bracket of the present invention.
Specific embodiment
Following embodiment further illustrates the contents of the present invention, but should not be construed as limiting the invention.Without departing substantially from
In the case where spirit of that invention and essence, to modification made by the method for the present invention, step or condition and replaces, belong to the present invention
Range.Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Bracket material of the present invention is alloy material, can specifically select nickel-chromium alloy or platinum-evanohm, cyclic annular bottomless
Net grid support radial stress with higher.
Embodiment 1
A kind of aorta petal bracket being implanted into through conduit, including bottomless 1 He of net grid support of ring-type made of being woven as alloy material
Aortic valve, the bottomless net grid support 1 of ring-type are strutted by air bag expansion, and aortic valve is set to cyclic annular bottomless grid branch
In frame, the bottomless net grid support of ring-type is equipped with self-expanding location structure 2.The self-expanding location structure 2 is in cyclic annular nothing
3 U-shaped cylinders of center symmetric setting on the net grid support of bottom.The U-shaped cylinder is equipped with extension 7 and is connected with extension
" J " shape warp architecture 6.The bottomless net grid support of ring-type is connected in sequence by two rows of mesh by metal wire 5, the nearly master
The high 6mm of first row mesh of arterial end, metal wire length 1mm, the high 5mm of heel row mesh, the shared side length 1mm between adjoining cells,
The long 16mm of self-expanding location structure, the self-expanding location structure 2 extend from the common edge between adjacent heel row mesh.
When aortic valve is having a size of 20mm, the height after cyclic annular bottomless grid stent expansion is 15mm；When aortic valve size
When for 23mm, the height after cyclic annular bottomless grid stent expansion is 17.5mm；When aortic valve is having a size of 26mm, cyclic annular nothing
Height after spacer screen lattice stent expansion is 20mm；When aortic valve is having a size of 29mm, after cyclic annular bottomless grid stent expansion
Height be 22.5mm.
Embodiment 2
Conveying device containing aorta petal bracket documented by embodiment 1, the aortic stents are accommodated in conveying device
In sheath, while expandable air bag is equipped in sheath, for strutting cyclic annular bottomless net grid support.
In use, the conveying device of aorta petal bracket slides into aorta petal region by left ventricle seal wire,
With the pull of sheath, form the gradually release to aorta petal bracket: self-expanding location structure 2 can be gradually opened, thus
Unexpanded bracket is formed in aorta and is supported, also backing positions is adjusted for doctor and provides effective auxiliary, avoid because of blood
Location difficulty caused by pulsation, risk caused by the unexpected displacement during avoiding because of bracket release, beats after the completion of positioning
Charge valve is opened to the inflated in conveying device, cyclic annular bottomless net grid support is strutted completely, completes the release of entire bracket.
Claims (8)
1. the aorta petal bracket being implanted into through conduit, including the bottomless net grid support of ring-type (1) made of being woven as alloy material and
Aortic valve, the bottomless net grid support of ring-type (1) are strutted by air bag expansion, and aortic valve is set to cyclic annular bottomless grid
In bracket, it is characterised in that the bottomless net grid support of ring-type is equipped with self-expanding location structure (2).
2. the aorta petal bracket being implanted into according to claim 1 through conduit, it is characterised in that the self-expanding location structure
It (2) is the 2-5 root U-shaped cylinder of the center symmetric setting on cyclic annular bottomless net grid support.
3. the aorta petal bracket being implanted into according to claim 2 through conduit, it is characterised in that the U-shaped cylinder is 3.
4. the aorta petal bracket being implanted into according to claim 2 through conduit, it is characterised in that the U-shaped cylinder, which is equipped with, to extend
Portion (7) and " J " the shape warp architecture (6) being connected with extension.
5. the aorta petal bracket being implanted into according to claim 1 through conduit, it is characterised in that the bottomless grid branch of ring-type
Frame is connected in sequence by least two rows of mesh by metal wire (5), wherein first row mesh (3) aperture at nearly aorta end is big
In heel row mesh (4) aperture, the self-expanding location structure extends from the common edge between adjacent heel row mesh.
6. the aorta petal bracket being implanted into according to claim 5 through conduit, it is characterised in that the of the nearly aorta end
The one high 6mm of row's mesh, metal wire length 1mm, the high 5mm of heel row mesh, the shared side length 1mm between adjoining cells, self-expanding positioning
The long 16mm of structure.
7. according to claim 5 through conduit be implanted into aorta petal bracket, it is characterised in that when aortic valve having a size of
When 20mm, the height after cyclic annular bottomless grid stent expansion is 15mm；When aortic valve is having a size of 23mm, cyclic annular fly net
Height after lattice stent expansion is 17.5mm；When aortic valve is having a size of 26mm, after cyclic annular bottomless grid stent expansion
Height is 20mm；When aortic valve is having a size of 29mm, the height after cyclic annular bottomless grid stent expansion is 22.5mm.
8. the conveying device containing any aorta petal bracket of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623344.0A CN110314017A (en) | 2019-07-11 | 2019-07-11 | The aorta petal bracket being implanted into through conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623344.0A CN110314017A (en) | 2019-07-11 | 2019-07-11 | The aorta petal bracket being implanted into through conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110314017A true CN110314017A (en) | 2019-10-11 |
Family
ID=68123255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910623344.0A Pending CN110314017A (en) | 2019-07-11 | 2019-07-11 | The aorta petal bracket being implanted into through conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110314017A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112089507A (en) * | 2020-08-28 | 2020-12-18 | 江苏大学 | Balloon expansion type aortic valve stent |
| CN116407362A (en) * | 2022-04-29 | 2023-07-11 | 武汉唯柯医疗科技有限公司 | Transcatheter aortic valve replacement device with double-side locking function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10301026A1 (en) * | 2002-08-13 | 2004-02-26 | Markus Dr.med. Dr.disc.pol. Ferrari | Stent to be used for percutaneous insertion of artificial heart valve, comprising hook-shaped elements for exact positioning |
| CN101011298A (en) * | 2006-01-16 | 2007-08-08 | 孔祥清 | Device for replacing aortic valve membrane or pulmonary valve membrane percutaneously |
| CN105496607A (en) * | 2016-01-11 | 2016-04-20 | 北京迈迪顶峰医疗科技有限公司 | Aortic valve device conveyed by catheter |
| CN107890382A (en) * | 2017-12-20 | 2018-04-10 | 乐普（北京）医疗器械股份有限公司 | It can position recyclable through conduit implanted aorta petal film device |
| CN109498215A (en) * | 2018-12-14 | 2019-03-22 | 宁波健世生物科技有限公司 | A kind of aortic valve stent of separate type release |
| CN211674727U (en) * | 2019-07-11 | 2020-10-16 | 陈绍良 | Aortic valve stent implanted through catheter |
-
2019
- 2019-07-11 CN CN201910623344.0A patent/CN110314017A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10301026A1 (en) * | 2002-08-13 | 2004-02-26 | Markus Dr.med. Dr.disc.pol. Ferrari | Stent to be used for percutaneous insertion of artificial heart valve, comprising hook-shaped elements for exact positioning |
| CN101011298A (en) * | 2006-01-16 | 2007-08-08 | 孔祥清 | Device for replacing aortic valve membrane or pulmonary valve membrane percutaneously |
| CN105496607A (en) * | 2016-01-11 | 2016-04-20 | 北京迈迪顶峰医疗科技有限公司 | Aortic valve device conveyed by catheter |
| CN107890382A (en) * | 2017-12-20 | 2018-04-10 | 乐普（北京）医疗器械股份有限公司 | It can position recyclable through conduit implanted aorta petal film device |
| CN109498215A (en) * | 2018-12-14 | 2019-03-22 | 宁波健世生物科技有限公司 | A kind of aortic valve stent of separate type release |
| CN211674727U (en) * | 2019-07-11 | 2020-10-16 | 陈绍良 | Aortic valve stent implanted through catheter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112089507A (en) * | 2020-08-28 | 2020-12-18 | 江苏大学 | Balloon expansion type aortic valve stent |
| CN116407362A (en) * | 2022-04-29 | 2023-07-11 | 武汉唯柯医疗科技有限公司 | Transcatheter aortic valve replacement device with double-side locking function |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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