CN106344100A - Left auricle plugging device - Google Patents
Left auricle plugging device Download PDFInfo
- Publication number
- CN106344100A CN106344100A CN201610885243.7A CN201610885243A CN106344100A CN 106344100 A CN106344100 A CN 106344100A CN 201610885243 A CN201610885243 A CN 201610885243A CN 106344100 A CN106344100 A CN 106344100A
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- Prior art keywords
- plugging
- left auricle
- umbrella
- disk
- occluder
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- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
-
- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12031—Type of occlusion complete occlusion
-
- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
-
- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
- A61B17/12145—Coils or wires having a pre-set deployed three-dimensional shape
-
- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
-
- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
- A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a left auricle plugging device and belongs to the field of medical apparatuses and instruments. The left auricle plugging device is provided with a plugging plate, a plugging umbrella, an elastic column, a plate-column connecting piece and a threaded connecting piece. The surfaces of the plugging umbrella and the plugging plate are covered with permeable polytetrafluoroethylene films. The plugging device is made from nickel-titanium alloy through braiding, bowl-shaped barbs are fixed to the edge of the plugging umbrella, and positioning is easy. Re-positioning of the plugging plate after plugging umbrella release can be achieved by the elastic rod of a spiral structure of the elastic column, and the function of extending and changing the direction of the plugging plate can be achieved, and the requirement relative to a left auricle opening angle of a delivery sheathing canal in operation is reduced. In addition, a thread is arranged on the edge of the plugging plate, the structure can assist the positioning of plugging plate, edge leakage caused by non-attachment between the plugging device and a left auricle wall can be also decreased, and complete plugging of the left auricle can be achieved. The errors caused by subjective judgment of an operator on the plugging device release device are decreased. Furthermore, the left auricle plugging device is suitable for left auricles of different shapes and provides convenience for operating instrument and material selection.
Description
Technical field
The present invention relates to a kind of scalable, adjustable occluder for left auricle in direction, quivered by human atrial fiber for prevention
The diseases such as the dynamic apoplexy causing, belong to medical instruments field.
Background technology
Atrial fibrillation (atrial fibrillation) is modal perpetual arrhythmia, and patients with atrial fibrillation accounts for global total population
2%.At present, China there are about 10,000,000 patients with atrial fibrillation, and in more than 60 years old crowd, atrial fibrillation sickness rate is 1%, and can increase with the age
Increase greatly.Apoplexy be lead to patients with atrial fibrillation dead and paralysis one of the main reasons, its clinical characters be onset hurried and
Risk is serious, and lethal, disability rate is higher than 50%.Wherein 90% non-valvular disease atrium thrombosiss and 60% rheumatic two
Cusp disease atrium thrombosiss are to be formed in left auricle.Left auricle is the remnants of the original left atrium of embryonic stage, assumes bending
Tube-like condition, during sinus rhythm, left auricle is because normal contraction ability is hardly formed thrombosis.When atrial fibrillation occurs, left auricle mouth
Broadening, lose effective rule and shrink, the introversive movement of auricle wall can not cause emptying in enough left auricle, leads to blood to exist
Alluvial in left auricle, additionally, the Morphological Features of left auricle itself and its interior trabecular muscles are uneven, 80% left auricle exists
Leafy, so that blood is produced and be vortexed and flows decrease, be the pathologic basis that thrombosis are formed in left auricle.If thrombus breaks loose enters
Blood circulation may result in apoplexy, the complication such as peripheral blood vessel and internal organs thromboembolism, therefore, for the intervention study of left auricle,
Significant to prevention patients with atrial fibrillation apoplexy.
Left auricle is the long tubular structure of a buckle, and auricle wall forms girder by pectinate muscless, has gap between girder.Zuo Xin
There is the neck of a diameter 10-40mm, between left superior pulmonary vein and mitral annuluses, coronary artery circles round between ear and left room chamber
Prop up near left auricle open base portion.There is endocrine function, be the significant points of release atrial natriuretic peptide (anp) brain natriuretic peptide (bnp).
Because the unique position relationship of left auricle and its function are more independent, researchers propose can by surgical operation,
The method such as thoracic cavity Minimally Invasive Surgery and intervention apparatus closure is closing or to extract left auricle, but surgery operating wound is larger, and one
As apply in the patients with atrial fibrillation because of other reasonses row cardiac operation, and there are about 36% patient and fail to excise the left heart completely
Ear, though thoracic cavity Minimally Invasive Surgery wound is less, because chamber structures may result in left auricle residual cavity to be formed extremely, therefore still has thrombosis shape
The possibility becoming, intervention apparatus block then because having the characteristics that wound is little, need not open breast and extracorporeal circulation, are considered to have good
Potential applicability in clinical practice.
Percutaneous left atrial appendage occlusion art is stopper to be placed in carrier by microtrauma puncture, stopper is delivered to a left side
Atrial appendage ostium blocks left auricle, thus avoiding the thrombosis producing in left auricle to enter blood circulation, it is to avoid in being caused by atrial fibrillation
Wind phenomenon.In recent years, the research about occluder for left auricle was greatly developed, the existing at present dress for left atrial appendage occlusion
Put although some pass through ce certification, but still suffer from some defects.Based on the analysis to existing stopper pluses and minuses, supplement envelope
Stifled device is scalable, the adjustable function in direction, designs and produces this stopper.
Patent us20120316584a1 provides a kind of closure bodily tissue, in particular for the stopper of left auricle, is
System and method.This patent stopper includes occluding member and anchor portion, and occluding member is that depression is netted, and anchor portion is by sealing
The stifled partly middle multiple fasteners extending, this fastener is formed by cut, has the size of regulation, and far-end is rendered as
Arc, curved edge carries agnail class formation, can prevent the injury to left auricle far-end to a certain extent.But due to engaging
The problems such as material of part and processing technology, once select the improper breakage easily causing left auricle wall；In addition, this stopper is in release
When first discharge occluding member and discharge anchor portion again so that occluding member is introduced into block-up position, lead to the anchor portion may
Cannot play a role, with the contraction diastole campaign of left auricle, the easy sliding of stopper comes off, enter blood circulation.
Patent cn103845096a provides a kind of stopper and operation method, abandons femoral vein path and punctures, and selects
The thoracic cavity Minimally Invasive Surgery method of ultrasonic guidance.Described stopper includes Nitinol net support, and support two ends are provided with left card, the right side
Card and interconnective movable part, are transversely provided with choked flow film in left card, right card and movable part respectively, can be for preventing
Blood flows out and provides three layers of guarantee.Described device operation, simply it is not necessary to x light ray, decreases the harm to doctor and patient.
But, this stopper to a certain extent be equal to excision left auricle so that heart lose completely left auricle storage blood flow,
The function of compensator or trimmer pressure, and the research with regard to Assessment of Left Atrium Appendage Function does not also have authoritative conclusion at present, so being difficult to estimate this
Plant which kind of impact is closure mode can cause to human body.
Patent cn104768476a provides a kind of stopper for auricle, and this stopper uses venipuncture and leads to
Road.This stopper is to make through designed to previous generation stopper watchman improvement, and the structure of described stopper includes
The cage structure that near-end, far-end, central axis and mast are formed, surface is covered with poly tetrafluoroethylene, and mast has nearside
Mast end and distally mast end, some masts of device distal end are towards central axis and proximal extension, and are interconnected on theirs
Distally mast end makes distally mast end be located at the nearside of device farthest side part, adopts screw thread even with the connected mode of delivery device
Connect, proximal end covers filter membrane.Although left auricle far-end can be avoided damage to a certain extent, the caged of cutting
Less, structure is really up to the mark to damage left auricle endothelium to structural tension.In addition, described stopper lacks closure disk, then adopt caged
Structure leads to the function of positioning and block to combine it is impossible to adapt to different shape left auricle in same structure, substantially increases closure
Difficulty.
It can be seen that, also there are many problems in above-mentioned patent.
Content of the invention
In order to overcome drawbacks described above, present invention offer one kind is scalable, direction can adjust, adapt to individual variation, and
And there is the occluder for left auricle of multiple leak.
To achieve these goals, the technical solution used in the present invention is:
Design a kind of occluder for left auricle, the plugging umbrella being connected by order and closure disk are constituted, described plugging umbrella and closure
Connected by the post being located on both axis between disk, both are formed by memory wire braiding, and can be received by pushing
On axis；Described plugging umbrella is located at the far-end of occluder for left auricle, and in umbrella, its concave surface is towards far-end；Described post is
The flexible cylinder of helical form；The card of the umbrella cover of described plugging umbrella position and described closure disk be coated to woven by politef silk and
The close nethike embrane that only can pass through blood becoming.
Described plugging umbrella is double-layer umbrella, and the edge of double-layer umbrella connects, and axle center sets interval.
Described plugging umbrella edge arranges agnail, and agnail is " u " shape or " v " shape.
Described post medical stainless steel is cut into.
Described memory wire is Nitinol.
Described closure disk is made up of two cards, is divided into disk distal face and disk proximal side, the edge spiral of two cards
Silk is connected with screw-like.
Described taenidium is nitinol alloy wire.
The technique scheme of the present invention has the following advantages: 1, stopper is overall is formed by Nitinol braiding, is different from
The plug-in stopper such as caged or single umbrella, adds plugging umbrella framework using closure disk, complete closure and positioning function point
From so that stopper is applied to the left auricle of different shape.2nd, the double-deck plugging umbrella of depression can position simplerly, is not required to
Consider the distance problem of mark and no marks far-end that develops, in addition the agnail at plugging umbrella edge helps more be stably fixed to
In left auricle, difficult for drop-off and sliding；3rd, the elastic rod of the helical structure of stainless steel tube cutting can be released according to different
Put angles and positions to be curved and stretch, secondary fixed during the unfixing realization release of closure disk and plugging umbrella position
Position, reduces the requirement to doctor's operation and release, increased the safety of operation；4th, the Nitinol metal around closure disk
The helicitic texture that is entwined of silk can help to block disk seal and block up left auricle mouth, that is, the left auricle mouth of any shape include circular and
Oval or other irregular shapes situations can accomplish to block comprehensively, greatly reduces wind equipment periphery fistula
Danger.Comprehensive above 4 points, this stopper can reduce the operation easier of left atrial appendage occlusion art, greatly improves the safety of operation,
Reduce the appearance of post-operative complication.
Brief description
Fig. 1 is the overall schematic of occluder for left auricle of the present invention；
Fig. 2 is the concrete structure diagram of post in occluder for left auricle of the present invention；
Fig. 3 is the concrete structure diagram of closure disk in occluder for left auricle of the present invention；
Fig. 4 is a release process being embodied as in case of occluder for left auricle of the present invention.
In figure:
1st, stopper；2nd, plugging umbrella；3rd, post；4th, closure disk；5th, internal layer umbrella；6th, outer layer umbrella；7th, interior outer connector；8、
Closure disk card；9th, disk-post connector；10th, taenidium；11st, threaded connector；12nd, close nethike embrane；14th, disk distal face；15th, disk
Proximal side；16th, plugging umbrella edge；17th, umbrella internal layer near-end；18th, umbrella outer layer near-end；19th, disk distal face far-end；20th, fixing agnail；
21st, cylinder；22nd, post-umbrella connecting portion；23rd, post-disk connecting portion；24th, delivery sheath；25th, conveying lever.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
Occluder for left auricle 1 is by plugging umbrella 2, post 3, closure disk 4, disk-post connector 9 and 11 groups of threaded connector
Become.In occluder for left auricle, plugging umbrella 2, the structure of closure disk 4 are to rely on nitinol alloy wire braiding heat treatment shaping to form, overall
Framework softer it is easy to conveying, release and position.The card of the umbrella cover of plugging umbrella 2 and closure disk 4 is coated to and is compiled by politef silk
The close nethike embrane 12 (Fig. 1) that only can pass through blood knitted.
Plugging umbrella 2 of the present invention is inner concave shape umbrella-shaped structure, and plugging umbrella 2 includes internal layer umbrella 5, outer layer umbrella 6, inside and outside connection
Part 7, fixing agnail 20.Internal layer umbrella 5 and outer layer umbrella 6 are formed from nitinol alloy wire braiding, the plugging umbrella edge of two-layer plugging umbrella
16 are connected, and the central axis of two-layer plugging umbrella are connected by interior outer connector 7, and close nethike embrane 12 passes through biocompatibility viscose glue and glues
It is attached to described two-layer umbrella surface.After stopper release, double-layer umbrella contributes to strong fix.Described fixing agnail 20 passes through metal
Cutting technique cuts into " u " shape or " v " shape, is fixed on plugging umbrella edge 16, and bifurcated is outwardly；When stopper launches, fixing
Agnail 20 enters left auricle wall, for grappling stopper 1, it is to avoid the relative displacement of stopper 1 and left auricle.Interior outer connector 7
Made by rustless steel, for collecting the Nitinol tinsel of internal layer umbrella 5 and outer layer umbrella 6, connect internal layer umbrella near-end 17 and outer layer
Umbrella near-end 18, realizes the connection between double-layer umbrella so that the structure of plugging umbrella is more stable and firm.(Fig. 1)
Closure disk 4 includes disk distal face 14, disk proximal side 15 and taenidium 10 3 part, the NiTi of composition disk distal face 14
Alloying metal silk converges in described disk-post connector 9, and the Nitinol tinsel of composition disk proximal side 15 converges in described
Threaded connector 11 in.The edge taenidium 10 of disk distal face 14 and disk proximal side 15 connects, and NiTi selected by taenidium 10
B alloy wire bending forms, and overall is in screw-like, and auxiliary closure disk seal blocks up left auricle mouth, prevents left auricle mouth edge from thrombosis and lets out
Dew.The shape of described closure disk 4 can change with disk-the distance between post connector 9 and threaded connector 11 change.Initially
When, closure disk 4 is compressed into column in delivery sheath 24, and during stopper 1 release, the shape of closure disk 4 is gradually by column
It is changed into flat, and after discharging completely, during left auricle shrinks diastole, the shape of closure disk 4 can be with left auricle
Mouthful shape and change, to guarantee under any state, closure disk can be blocked (Fig. 3) completely to left auricle mouth.
As Fig. 2, post 3 includes cylinder 21, post-umbrella connecting portion 22 and post-disk connecting portion 23 3 part.Described cylinder 21
The screw-shaped structure cutting into for stainless steel tube, the density of the THICKNESS CONTROL screw thread according to stainless steel tube is it is ensured that cylinder has
Enough support forces, have bending, flexible performance simultaneously, for example, when delivery sheath, post on the lower side with left auricle mouth relatively
It is bent upwards, upside spiral position is compressed, downside spiral position is launched, and realizes bending effect.Other, post-umbrella connecting portion 22
All it is cylindrical in shape with post-disk connecting portion 23, the cylinder inside diameter of two connecting portions is consistent with cylinder internal diameter.Nitinol by plugging umbrella
Silk is pooled in post-umbrella connecting portion 22, completes the connection between plugging umbrella and cylinder by interior outer connector 7 clip, likewise,
The nitinol alloy wire of closure disk distal face far-end 19 is pooled in post-disk connecting portion 23, by disk-post connector 9 clip even
Connect, with this it is achieved that post 3 is to the connection of closure disk 4 and plugging umbrella 2 and supporting role.
Disk-post connector 9 and threaded connector 11 are all made of stainless steel.Described disk-post connector 9 includes inside not
Rust steel flexible pipe and outside clip, connect post 3 and closure disk 4 respectively, and the nitinol alloy wire of convergence disk distal face far-end 19 arrives
In post-disk connecting portion 23, clamp connection is carried out by described disk-post connector 9, closure disk distal face 14 NiTi is completed with this
Connection between the fixation of B alloy wire and post 3 and closure disk 4.Threaded connector 11 is processed by stainless steel tube, near-end
It is cased with screw thread to screw with conveying lever 25, interior distal end carries out the nitinol alloy wire of mechanical card hoop closure disk proximal side 15.Work as operation
In, when occluder for left auricle sends into delivery sheath release, rotation conveying lever 25 handle end makes conveying lever 25 and 1 point of stopper
From.It is emphasized that disk-post connector 9 and threaded connector 11 maintain on the same axis, middle separation, convenient conveying sheath
The transmission of pipe 24 and release.
The flow process that stopper 1 discharges in delivery sheath 24 according to Fig. 4 a, b, c, d order.1st, by stopper 1 load to
Delivery sheath 24 far-end, now closure disk 4 and plugging umbrella 2 be all compacted into long column shape, delivery sheath 24 is transported to the left heart
In ear, when transesophageal ultrasonography shows that plugging umbrella edge reaches the position needing grappling, prepares release stopper 1；2nd, with respect to
Conveying lever 25 withdraws delivery sheath 24, stops withdrawing after plugging umbrella 2 gradually spreads out, and real-time figure shows plugging umbrella 2 anchor
Surely arrive desired location, pull back delivery sheath 24 and conveying lever 25 so that the agnail on plugging umbrella enters left auricle wall positioning simultaneously；
3rd, keep conveying lever 25 motionless, withdraw delivery sheath 24 so that post 3 all releases delivery sheath 24, now drop back simultaneously
Delivery sheath 24 and conveying lever 25 make delivery sheath 24 withdraw from left auricle mouth, and make post 3 be in the state of stretching, from
And ensure that stopper 1 fixation will not relax and come off；4th, withdraw delivery sheath 24 with respect to conveying lever 25 so that closure disk 4 gradually
Launch, flat-disk shape is gradually released to by long column shape, and is plugged in left auricle mouth.By transesophageal ultrasonography image and tractive
Test determine closure disk 4 and plugging umbrella 2 each self-align after the completion of, unwinding thread connector 11 is so that stopper 1 and conveying lever
25 separate, and withdraw from delivery sheath 24 and conveying lever 25 (Fig. 4).
Stopper 1 involved in the present invention has function that is recyclable and again discharging, when stopper 1 off-position is not good
Or when plugging effect is bad, device can be reclaimed entirely or half recovery, select suitable off-position or change conjunction
Again discharged again after suitable size stopper 1.Push rod 25 of pulling back while promoting forward delivery sheath 24 is so that block
Disk 4, elastic rod 3, plugging umbrella 2 are progressively taken in inside delivery sheath 24, reach suitable off-position or are changing suitable size
Again discharged after stopper.
Stopper 1 according to the present invention goes for the left auricle of different shape, and the plugging umbrella 2 of depression makes stopper
Release more easy and accurate, with protrusion plugging umbrella compared with, the present invention do not need operator estimation plugging umbrella foremost with anchor
Determine the distance between area, reduce operating difficulty, improve success rate of operation；Ductus arteriosus occluder umbrella 2 according to the present invention and envelope
It is connected with a post 3 between stifled disk 4, post 3 can be with telescoping collapse so that closure disk 4 can not be same with plugging umbrella 2
On one axis, improve stopper to the adaptability of different shape left auricle it can be ensured that realizing to the left auricle of different shape
Block completely；Taenidium 10 around closure disk 4, can assist closure disk 4 closure left auricle mouth, prevent left auricle mouth edge from occurring
Thrombosis are revealed, and may also function as certain fixation.Therefore, because have off-position selecting accurately, stopper is scalable, side
To the advantages of can adjusting, the present invention contributes to reducing operating difficulty, improves success rate of operation.
The above, the only present invention preferably specific embodiments, but protection scope of the present invention is not limited to this, appoints
What those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and invention
Design in addition equivalent or change, all should cover in protection scope of the present invention.
Claims (7)
1. occluder for left auricle, the plugging umbrella being connected by order and closure disk constitute it is characterised in that: described plugging umbrella and closure
Connected by the post being located on both axis between disk, both are formed by memory wire braiding, and can be received by pushing
On axis；Described plugging umbrella is located at the far-end of occluder for left auricle, and in umbrella, its concave surface is towards far-end；Described post is
The flexible cylinder of helical form；The card of the umbrella cover of described plugging umbrella position and described closure disk be coated to woven by politef silk and
The close nethike embrane that only can pass through blood becoming.
2. occluder for left auricle as claimed in claim 1 it is characterised in that: described plugging umbrella be double-layer umbrella, the side of double-layer umbrella
Edge connects, and axle center sets interval.
3. occluder for left auricle as claimed in claim 1 or 2 it is characterised in that: described plugging umbrella edge arranges agnail, and falls
Pierce as " u " shape or " v " shape.
4. occluder for left auricle as claimed in claim 3 it is characterised in that: described post with medical stainless steel cut system
Become.
5. occluder for left auricle as claimed in claim 3 it is characterised in that: described memory wire be Nitinol.
6. occluder for left auricle as claimed in claim 3 it is characterised in that: described closure disk is made up of two cards, is divided into
Disk distal face and disk proximal side, the edge taenidium of two cards is connected with screw-like.
7. occluder for left auricle as claimed in claim 6 it is characterised in that: described taenidium be nitinol alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885243.7A CN106344100B (en) | 2016-10-11 | 2016-10-11 | Occluder for left auricle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885243.7A CN106344100B (en) | 2016-10-11 | 2016-10-11 | Occluder for left auricle |
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| Publication Number | Publication Date |
|---|---|
| CN106344100A true CN106344100A (en) | 2017-01-25 |
| CN106344100B CN106344100B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610885243.7A Expired - Fee Related CN106344100B (en) | 2016-10-11 | 2016-10-11 | Occluder for left auricle |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691521A (en) * | 2017-02-08 | 2017-05-24 | 宁波迪创医疗科技有限公司 | Closure device |
| CN107049373A (en) * | 2017-02-08 | 2017-08-18 | 宁波迪创医疗科技有限公司 | Plugging device |
| CN107126240A (en) * | 2017-06-08 | 2017-09-05 | 有研医疗器械（北京）有限公司 | A kind of occluder for left auricle and its application method |
| CN107260234A (en) * | 2017-06-16 | 2017-10-20 | 上海形状记忆合金材料有限公司 | Weave degradable plugging device |
| WO2018166378A1 (en) * | 2017-03-17 | 2018-09-20 | 广州新诚生物科技有限公司 | Left auricle occluder |
| CN108567461A (en) * | 2018-03-13 | 2018-09-25 | 刘金伟 | A kind of Asymmetric bidiscoidal left atrial appendage occlusion device |
| WO2019057184A1 (en) * | 2017-09-25 | 2019-03-28 | 潘湘斌 | Left atrial appendage occluder assembly capable of being repeatedly withdrawn and released and intervention method therefor |
| CN109758199A (en) * | 2019-01-28 | 2019-05-17 | 武汉唯柯医疗科技有限公司 | A kind of vascular plug and blood vessel plug assembly |
| WO2019165966A1 (en) * | 2018-03-02 | 2019-09-06 | 上海微创医疗器械（集团）有限公司 | Occluder, and medical device |
| CN110996805A (en) * | 2017-05-25 | 2020-04-10 | 泰尔茂株式会社 | Adhesive occlusion system |
| CN110974331A (en) * | 2019-12-16 | 2020-04-10 | 上海长海医院 | Left auricle occluder with occlusion surface made of absorbable material |
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| CN110996805A (en) * | 2017-05-25 | 2020-04-10 | 泰尔茂株式会社 | Adhesive occlusion system |
| CN107126240A (en) * | 2017-06-08 | 2017-09-05 | 有研医疗器械（北京）有限公司 | A kind of occluder for left auricle and its application method |
| CN107260234B (en) * | 2017-06-16 | 2020-10-09 | 上海形状记忆合金材料有限公司 | Woven degradable plugging device |
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| CN108567461A (en) * | 2018-03-13 | 2018-09-25 | 刘金伟 | A kind of Asymmetric bidiscoidal left atrial appendage occlusion device |
| CN109758199A (en) * | 2019-01-28 | 2019-05-17 | 武汉唯柯医疗科技有限公司 | A kind of vascular plug and blood vessel plug assembly |
| CN113873957A (en) * | 2019-03-25 | 2021-12-31 | 拉米纳公司 | Device and system for treating left atrial appendage |
| CN112386304A (en) * | 2019-08-12 | 2021-02-23 | 上海东方医疗创新研究院 | Auxiliary cancer embolus removing instrument and operation method thereof |
| CN114340516A (en) * | 2019-08-30 | 2022-04-12 | 波士顿科学医学有限公司 | Left atrial appendage implant with sealing disk |
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| CN112656474A (en) * | 2019-10-15 | 2021-04-16 | 先健科技(深圳)有限公司 | Plugging device |
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| CN110974331A (en) * | 2019-12-16 | 2020-04-10 | 上海长海医院 | Left auricle occluder with occlusion surface made of absorbable material |
| CN114052816A (en) * | 2020-08-06 | 2022-02-18 | 刘雄昌 | Gastrointestinal tract plugging device |
| WO2023124440A1 (en) * | 2021-12-30 | 2023-07-06 | 先健科技(深圳)有限公司 | Occluder and occluding system |
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