CN207785227U - A kind of occluder for left auricle - Google Patents
A kind of occluder for left auricle Download PDFInfo
- Publication number
- CN207785227U CN207785227U CN201720269012.3U CN201720269012U CN207785227U CN 207785227 U CN207785227 U CN 207785227U CN 201720269012 U CN201720269012 U CN 201720269012U CN 207785227 U CN207785227 U CN 207785227U
- Authority
- CN
- China
- Prior art keywords
- left auricle
- holder
- occluder
- heart
- end support
- 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.)
- Expired - Fee Related
Links
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 238000011084 recovery Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 2
- 210000003027 ear inner Anatomy 0.000 claims 1
- 230000001194 anti-hemostatic effect Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 206010003658 Atrial Fibrillation Diseases 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 208000007536 Thrombosis Diseases 0.000 description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000010100 anticoagulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000007674 radiofrequency ablation Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 206010000891 acute myocardial infarction Diseases 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 230000001746 atrial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 210000005248 left atrial appendage Anatomy 0.000 description 1
- 231100000225 lethality Toxicity 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000021090 palsy Diseases 0.000 description 1
- 210000005259 peripheral blood Anatomy 0.000 description 1
- 239000011886 peripheral blood Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000009424 thromboembolic effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
-
- 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
Abstract
The utility model discloses a kind of occluder for left auricle, including holder front end, back-end support, supporting rack and holder film, the holder front end is connected with the back-end support by supporting rack, and the holder film is covered in holder front end and back-end support surface；The holder front end and the compressible deformation of back-end support, occluder for left auricle is installed in left auricle of heart, holder front end and back-end support restore shape, there are 5 ° of 30 ° of angles for holder front end and back-end support, holder front end Lantern memorial alloy restores shape and is fixed on left auricle of heart inner wall, with the extraction of conveying sheath, back-end support umbellate form memorial alloy restores shape and is in close contact with left auricle of heart mouth, and plugging device is effectively prevent to go successively to left auricle of heart inner cavity and fall off；Holder film can more effective anti-hemostatic plug omission；Since holder film surface is without overhead structure, position can be adjusted in the left auricle of heart of different configuration, reduce the complexity of operation.
Description
Technical field
The utility model belongs to cardiac medical instrument field, and in particular to a kind of occluder for left auricle.
Background technology
Auricular fibrillation (atrial fibrillation) is that clinically most common types of arrhythmia, total incidence are up to 0.77%, with year
Age increases its incidence and is continuously increased, and crowd is up to 10% within 75 years old or more.The most important harm of atrial fibrillation is to lead to Left Atrial
It is formed, the complication such as acute myocardial infarction AMI palsy, peripheral blood vessel embolism is induced after thrombus breaks loose, increase disability rate and lethality.
90% or more thrombus comes from left auricle of heart in non-valvular atrial fibrillation patient at present, can obviously reduce so being closed or blocking left auricle of heart
Thrombosis reduces thromboembolic complication.Traditional therapeutic scheme includes oral anticoagulation object, atrial fibrillation RF ablation and the left heart
Ear ligation operation etc., but oral anticoagulation object is taken expensive, easily leads to hemorrhage complication and patient's Long-term taking medicine compliance is bad etc.
Problem；Atrial fibrillation radiofrequency ablation wound is big, costly, easily recurs；Left auricle of heart ligation needs open chest surgery, wound big.The above treatment
The equal Shortcomings of scheme.
The shortcomings that minimally invasive left atrial appendage occlusion art of rising in recent years avoids above-mentioned cardiopulmonary bypass surgery.But because of left auricle of heart
Anatomic form is different and existing plugging device design principle and structure on defect, on the one hand easily lead in art and postoperative blood occur
Liquid is remaining, and ideal plugging effect is not achieved；On the other hand, since plugging device fixation is insecure, it is easy to happen obscission, is increased
Complexity in art or postoperative is added.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of occluder for left auricle, it is ensured that envelope
Stifled device being fixedly secured in left auricle of heart, and thrombus is effectively prevent to omit.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows：A kind of occluder for left auricle, including note branch
Frame front end, back-end support, supporting rack and holder film, the holder front end are connected with the back-end support by supporting rack, institute
It states holder film and is covered in the holder front end and back-end support surface；The holder front end and the compressible deformation of back-end support,
Behind the holder front end and back-end support complex shape, there are angle, the angles between the holder front end and back-end support
Ranging from 5 ° -30 °.
Preferably, the holder front end and back-end support are the reticular structures being woven by memorial alloy.
Preferably, the compressed holder front end is tubular dictyosome structure, and the compressed back-end support is cone cylinder
Dictyosome structure.
Preferably, the holder film is biomembrane, and thickness is 0.25~0.35mm.
Preferably, the compressed plugging device is transported to left auricle of heart inner cavity by conveying device, and the plugging device enters
Start to restore shape after left auricle of heart, is bird-caging structure after the holder front end recovery shape, the back-end support restores shape
It is beveled structure afterwards.
Preferably, the bird-caging structure is cross one another reticular structure, and the beveled structure is equally distributed half
The quantity of oval structure, the semiellipse structure is 30~40.
Preferably, the longitudinal section of the beveled structure and the bird-caging structure is circle, the beveled structure longitudinal section
Maximum gauge be more than bird-caging structure longitudinal section maximum gauge.
Preferably, the longitudinal section diameter of the bird-caging structure first increases from the left auricle of heart inner cavity to the left auricle of heart mouth
After reduce.
Preferably, the compressed plugging device is moved forward and backward adjustment position in the left auricle of heart inner cavity.
Preferably, restore the holder front end fixation after shape to be tightly attached on the left auricle of heart inner wall, after restoring shape
The back-end support fix and be enclosed in the left auricle of heart mouth.
The beneficial effects of the utility model：The plugging device of the utility model is blocked using two sections of memory alloy stents
After device is installed in left auricle of heart, there are 5 ° of -30 ° of angles after holder front end and back-end support recovery shape, with the pumping of conveying sheath
Go out, holder front end Lantern memorial alloy restores shape and fixation is tightly attached on left auricle of heart inner wall, and the memory of back-end support umbellate form is closed
Gold restores and is in close contact with left auricle of heart mouth, and plugging device is effectively prevent to go successively to left auricle of heart inner cavity and fall off；Before holder
End and back-end support surface are covered with holder film, can more effective anti-tampon omission；Since holder film surface is without
Hook structure can suitably adjust plugging device installation site in plugging device installation process, can be in the left auricle of heart of different configuration
It is adjusted to suitable position to be installed, reduces the complexity of operation.
Description of the drawings
Fig. 1 is the structural schematic diagram that the utility model occluder for left auricle is not covered with holder film；
Fig. 2 is that the utility model occluder for left auricle covers the structural schematic diagram after holder film；
Fig. 3 is that the utility model occluder for left auricle enters the compressive state structural schematic diagram before left auricle of heart；
Fig. 4 is the structural schematic diagram that the utility model occluder for left auricle enters that shape is restored in left auricle of heart after-poppet front end；
Fig. 5 is the structure that the utility model occluder for left auricle enters that memory alloy stent after left auricle of heart restores shape completely
Schematic diagram.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows：As illustrated in fig. 1 and 2, occluder for left auricle
1 includes holder front end 11 and back-end support 12, supporting rack 13 and holder film 14, and holder front end 11 and back-end support 12 pass through branch
Support 13 connects, and holder film 14 is covered in the surface of holder front end 11 and back-end support 12.Holder front end 11 and back-end support
12 be the reticular structure being woven by memorial alloy, the compressible deformation of memory alloy stent.
As in Figure 3-5, occluder for left auricle 1 axially can be stretched and be compressed, compressed holder front end
11 be tubular dictyosome structure, and compressed back-end support 12 is cone cylinder dictyosome structure.Compressed occluder for left auricle 1 and conveying
Device connects, and occluder for left auricle 1 is sent into 2 inner cavity of left auricle of heart by conveying sheath.Holder front end and back-end support surface are all
It is covered with holder film, it can more effective anti-hemostatic plug omission.
Holder film 14 is biomembrane in the present invention, and thickness is 0.25~0.35mm, and holder film 14 is covered in
12 surface of compressed holder front end 11 and back-end support, compressed occluder for left auricle 1 start after entering 2 inner cavity of left auricle of heart
Gradually restore character, biomembrane can be expanded as the recovery of holder front end 11 and back-end support 12 deforms, it is made closely to cover
It covers on memory alloy stent surface.
Holder front end 11 is placed in the inner cavity of left auricle of heart 2, is bird-caging structure, lantern after the recovery shape of holder front end 11
Shape structure is cross one another reticular structure, restores the holder front end 11 after shape and fixes and be tightly attached to 2 inner wall of the left auricle of heart
On, so that holder front end 11 is blocked the effect of left auricle of heart 2；Back-end support 12 is placed in 2 mouthfuls of left auricle of heart, the recovery shape of back-end support 12
It is beveled structure afterwards, beveled structure is equally distributed semiellipse structure, and the quantity of semiellipse structure is 30~40, restores shape
Back-end support 12 after shape is fixed and is enclosed in 2 mouthfuls of the left auricle of heart, and occluder for left auricle 1 is effectively prevent to go successively to left auricle of heart
It 2 inner cavities and falls off.Since 14 surface of holder film is without overhead structure, can suitably be adjusted in 1 installation process of occluder for left auricle
The installation site of whole occluder for left auricle 1 may be adjusted to suitable position in the left auricle of heart 2 of different configuration and carry out left auricle of heart envelope
The installation of stifled device 1, reduces the complexity of operation.
After occluder for left auricle 1 is installed in left auricle of heart 2, deposited after holder front end 11 and the recovery shape completely of back-end support 12
In 5 ° of -30 ° of angles, angle can suitably be adjusted according to the left auricle of heart 2 of different configuration, make occluder for left auricle 1 and the left heart
Ear 2 is closely connected and fixed.
The longitudinal section for restoring beveled structure back-end support 12 and bird-caging structure stand front end 11 after shape is circle, lamp
From 2 inner cavity of the left auricle of heart to 2 mouthfuls of first increases and then decreases of the left auricle of heart, beveled structure is vertical to be cut the longitudinal section diameter of cage structure
The maximum gauge in face is more than the maximum gauge of bird-caging structure longitudinal section.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is changed.Therefore, the utility model is not limited to specific implementation mode disclosed and described above, right
Some modifications and changes of utility model should also be as falling into the protection scope of the claims of the present utility model.In addition, although
Some specific terms are used in this specification, these terms are merely for convenience of description, not to the utility model structure
At any restrictions.
Claims (10)
1. a kind of occluder for left auricle, including note holder front end, back-end support, supporting rack and holder film, which is characterized in that institute
It states holder front end to connect by supporting rack with the back-end support, after the holder film is covered in the holder front end and holder
End surfaces；After the holder front end and the compressible deformation of back-end support, the holder front end and back-end support complex shape, described
There are angle between holder front end and back-end support, ranging from 5 ° -30 ° of the angle.
2. a kind of occluder for left auricle according to claim 1, which is characterized in that the holder front end and back-end support are
The reticular structure being woven by memorial alloy.
3. a kind of occluder for left auricle according to claim 1, which is characterized in that the compressed holder front end is cylinder
Shape dictyosome structure, the compressed back-end support are cone cylinder dictyosome structure.
4. a kind of occluder for left auricle according to claim 1, which is characterized in that the holder film is biomembrane, thick
Degree is 0.25~0.35mm.
5. a kind of occluder for left auricle according to claim 1, which is characterized in that the compressed plugging device passes through defeated
Device is sent to be transported to left auricle of heart inner cavity, the plugging device starts to restore shape after entering left auricle of heart, and shape is restored in the holder front end
It is cross one another reticular structure after shape, is beveled structure after the back-end support recovery shape.
6. a kind of occluder for left auricle according to claim 5, which is characterized in that the beveled structure is equally distributed
The quantity of semiellipse structure, the semiellipse structure is 30~40.
7. a kind of occluder for left auricle according to claim 5, which is characterized in that the beveled structure and the netted knot
The longitudinal section of structure is circle, and the maximum gauge of the beveled structure longitudinal section is more than the maximum of the reticular structure longitudinal section directly
Diameter.
8. a kind of occluder for left auricle according to claim 5, which is characterized in that the longitudinal section diameter of the reticular structure
From left auricle of heart inner cavity to left auricle of heart mouth first increases and then decreases.
9. a kind of occluder for left auricle according to claim 4, which is characterized in that the compressed plugging device is in the left heart
Ear inner cavity is moved forward and backward adjustment position.
10. a kind of occluder for left auricle according to claim 5, which is characterized in that before restoring the holder after shape
End fixation is tightly attached on left auricle of heart inner wall, is restored the back-end support after shape and is fixed and be enclosed in left auricle of heart mouth.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269012.3U CN207785227U (en) | 2017-03-17 | 2017-03-17 | A kind of occluder for left auricle |
| PCT/CN2018/078148 WO2018166378A1 (en) | 2017-03-17 | 2018-03-06 | Left auricle occluder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269012.3U CN207785227U (en) | 2017-03-17 | 2017-03-17 | A kind of occluder for left auricle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207785227U true CN207785227U (en) | 2018-08-31 |
Family
ID=63273651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720269012.3U Expired - Fee Related CN207785227U (en) | 2017-03-17 | 2017-03-17 | A kind of occluder for left auricle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207785227U (en) |
| WO (1) | WO2018166378A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129455A1 (en) * | 2019-12-27 | 2021-07-01 | 先健科技(深圳)有限公司 | Left atrial appendage occluder and occlusion system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615936A (en) * | 2014-11-22 | 2016-06-01 | 常州乐奥医疗科技有限公司 | Novel left auricle occluder |
| DE102015104785A1 (en) * | 2015-03-27 | 2016-09-29 | Pfm Medical Ag | Device for closing a cardiac ear |
| CN106344100B (en) * | 2016-10-11 | 2019-04-19 | 北京工业大学 | Occluder for left auricle |
-
2017
- 2017-03-17 CN CN201720269012.3U patent/CN207785227U/en not_active Expired - Fee Related
-
2018
- 2018-03-06 WO PCT/CN2018/078148 patent/WO2018166378A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129455A1 (en) * | 2019-12-27 | 2021-07-01 | 先健科技(深圳)有限公司 | Left atrial appendage occluder and occlusion system |
| US11963708B2 (en) | 2019-12-27 | 2024-04-23 | Lifetech Scientific (Shenzhen) Co., Ltd. | Left atrial appendage occluder and occlusion system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018166378A1 (en) | 2018-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106859722A (en) | A kind of sacculus left atrial appendage occlusion device | |
| CN201082203Y (en) | Heart defect occluder device | |
| CN204839624U (en) | Percutaneous left auricle of heart shutoff apparatus | |
| WO2003096881A3 (en) | Device and method of use for functional isolation of animal or human tissues | |
| CN104856741A (en) | Transcatheter left atrial appendage plugging system | |
| CN207785227U (en) | A kind of occluder for left auricle | |
| CN112472197A (en) | Left auricle plugging device | |
| CN102451026A (en) | Compression hemostat applied to esophagus and fundus ventriculi | |
| CN204446195U (en) | Desirable go out self-inflated iliac vein support | |
| CN206333945U (en) | A kind of bidirectional protective takes bolt device | |
| CN208492200U (en) | A kind of injecting glue closure left auricle of heart device of the front end with closure sacculus | |
| CN106037879B (en) | A kind of intravascular catching device and its adjusting method of adjustable section | |
| CN106880389A (en) | One kind tissue folder closes system | |
| CN203915740U (en) | Prevent the peritoneal cavity drainage tube stopping up | |
| CN206138163U (en) | A plugging device for left auricle of heart | |
| CN208435687U (en) | A kind of oval hole plugging device | |
| CN108464878A (en) | A kind of recyclable overlay film inner airway stent of the anti-hyperplasia in both ends | |
| CN209220415U (en) | Take bolt conduit | |
| CN207785226U (en) | A kind of sacculus left atrial appendage occlusion device | |
| CN207520170U (en) | For the artery side wall for the treatment of zone vessel branch and the aneurysm clip of terminal aneurysm | |
| CN204192801U (en) | A kind of Novel lacrimal recovery support of degradable biological amniotic membrane compound | |
| CN204364180U (en) | A kind of memorial alloy face orifice bracket | |
| CN109602523A (en) | A kind of recyclable drug stent | |
| CN208799279U (en) | A kind of calculus plugging device | |
| CN208611423U (en) | It is a kind of for bile duct drainage and the fixable type bracket nose bile duct of flushing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 |