CN106344100B - Occluder for left auricle - Google Patents
Occluder for left auricle Download PDFInfo
- Publication number
- CN106344100B CN106344100B CN201610885243.7A CN201610885243A CN106344100B CN 106344100 B CN106344100 B CN 106344100B CN 201610885243 A CN201610885243 A CN 201610885243A CN 106344100 B CN106344100 B CN 106344100B
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- Prior art keywords
- disk
- umbrella
- plugging
- left auricle
- heart
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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)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Vascular Medicine (AREA)
- Reproductive Health (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
Abstract
Occluder for left auricle belongs to medical instruments field.Device, which has, blocks disk, plugging umbrella, elastic, disk-column connector and threaded connector.Plugging umbrella and closure panel surface are coated permeable polytetrafluoroethylene film.This plugging device is mainly worked out by Nitinol, and plugging umbrella presentation edge fixation is barbed bowl-shape, is easy to position；The elastic rod of the helical structure of elastic is, it can be achieved that plugging umbrella blocks the repositioning of disk after discharging, it can be achieved that function that is flexible and changing closure disk direction, reduces requirement of the delivery sheath relative to left auricle of heart bicker degree in operation；In addition, blocking plate edge is equipped with screw thread silk, which can help to block disk positioning, can also reduce edge leakage caused by due to plugging device is not bonded with left auricle of heart wall, realize the complete closure of left auricle of heart.Present invention reduces making mistakes as caused by subjective judgement of the patient plugging device releasing position, and the present invention is suitable for the left auricle of heart of different shape, provides convenience for the equipment selection of operation.
Description
Technical field
The present invention relates to a kind of scalable, adjustable occluder for left auricle in direction, are quivered for preventing by human atrial fiber
The diseases such as apoplexy caused by dynamic, belong to medical instruments field.
Background technique
Atrial fibrillation (atrial fibrillation) is the most common perpetual arrhythmia, and patients with atrial fibrillation accounts for about global total population
2%.Currently, China, there are about 10,000,000 patients with atrial fibrillation, atrial fibrillation disease incidence is 1% in 60 years old or more crowd, and can be increased with the age
Increase greatly.Cerebral apoplexy be cause patients with atrial fibrillation death and paralysis the main reason for one of, clinical characters be onset it is hurried and
Risk is serious, and lethal, disability rate is higher than 50%.Wherein 90% non-valvular disease atrial thrombus and 60% rheumatic two
Cusp disease atrial thrombus is formed in left auricle of heart.Left auricle of heart is the remnants of the original atrium sinistrum of embryonic stage, is presented curved
Tube-like condition, when sinus rhythm, left auricle of heart is because normal contraction ability is hardly formed thrombus.When atrial fibrillation occurs, left auricle of heart mouth
It is broadening, it loses effective rule and shrinks, the introversive movement of auricle wall cannot cause emptying in enough left auricle of hearts, and blood is caused to exist
Siltation in left auricle of heart, in addition, the Morphological Features of left auricle of heart itself and trabecular muscles in it are uneven, 80% left auricle of heart exists
It is leafy, so that blood is generated vortex and flows decrease, is the pathologic basis that thrombus is formed in left auricle of heart.If thrombus breaks loose enters
Blood circulation can lead to cerebral apoplexy, the complication such as peripheral blood vessel and internal organs embolism, therefore, for the intervention study of left auricle of heart,
It is of great significance to prevention patients with atrial fibrillation cerebral apoplexy.
Left auricle of heart is the long tubular structure of a buckle, and auricle wall forms girder by musculi pectinati, has the gap between girder.Zuo Xin
There is the neck of a diameter 10-40mm between ear and left room chamber, between left superior pulmonary vein and mitral annulus, coronary artery convolution
Branch is close to left auricle of heart open base portion.It is the significant points for discharging atrial natriuretic peptide (ANP) brain natriuretic peptide (BNP) with endocrine function.
Since the unique positional relationship of left auricle of heart and its function are relatively independent feature, researchers propose can by surgical operation,
Thoracic cavity Minimally Invasive Surgery and intervention apparatus the methods of block to close or extract left auricle of heart, but surgery operating wound is larger, and one
As apply in the patients with atrial fibrillation because of other reasons row cardiac operation, and fail to cut off the left heart completely there are about 36% patient
Ear forms since chamber structures can lead to left auricle of heart residual cavity extremely though thoracic cavity Minimally Invasive Surgery wound is smaller, therefore still has thrombus shape
At possibility, intervention apparatus block then because have the characteristics that wound it is small, without opening chest and extracorporal circulatory system, be considered to have good
Potential applicability in clinical practice.
Percutaneous left atrial appendage occlusion art is to be placed on plugging device in conveyer that plugging device is delivered to a left side by microtrauma puncture
Atrial appendage ostium blocks left auricle of heart, so that the thrombus generated in left auricle of heart be avoided to enter blood circulation, avoids by atrial fibrillation initiation
Wind phenomenon.In recent years, the research in relation to occluder for left auricle was greatly developed, the current existing dress for left atrial appendage occlusion
It sets, although some are authenticated by CE, there are still some defects.Based on the analysis to existing plugging device advantage and disadvantage, supplement envelope
Stifled device is scalable, and the adjustable function in direction designs and produces the plugging device.
Patent US20120316584A1 provides a kind of closure bodily tissue, in particular for left auricle of heart plugging device, be
System and method.The patent plugging device includes occluding member and anchor portion, and occluding member is that recess is netted, and anchor portion is by sealing
The stifled intermediate multiple fasteners extended in part, the fastener are had defined size, are distally rendered as by being cut by laser
Arc, curved edge have hangnail class formation, can prevent the injury to left auricle of heart distal end to a certain extent.But due to engagement
The problems such as material and manufacture craft of part, once the improper breakage for easily causing left auricle of heart wall of selection；In addition, the plugging device is discharging
When first discharge occluding member and discharge anchor portion again so that occluding member is introduced into block-up position, cause anchor portion may
It can not play a role, with the contraction diastole campaign of left auricle of heart, plugging device is easy sliding and falls off, into blood circulation.
Patent CN103845096A provides a kind of plugging device and operation method, abandons the puncture of femoral vein access, and selects
The thoracic cavity Minimally Invasive Surgery method of ultrasonic guidance.The plugging device includes Nitinol net bracket, and bracket both ends are equipped with left disk, the right side
Disk and movable part interconnected are transversely provided with choked flow film in left disk, right disk and movable part respectively, can be to prevent
Blood outflow provides three layers of guarantee.The device operation is simple, does not need x-ray, reduces the harm to doctor and patient.
But this plugging device is equal to excision left auricle of heart to a certain extent so that heart lose completely left auricle of heart storage blood flow,
The function of compensator or trimmer pressure, and about the research of Assessment of Left Atrium Appendage Function, there are no authoritative conclusions at present, so being difficult to estimate this
Which kind of influence is kind closure mode can cause to human body.
Patent CN104768476A provides a kind of plugging device for auricle, and the plugging device is logical using venipuncture
Road.The plugging device is by improveing designed production to previous generation plugging device watchman, and the structure of the plugging device includes
The cage structure that proximal end, distal end, central axis and mast are formed, surface is covered with polytetrafluoroethylene film, and mast has nearside
Mast end and distal side mast end, some masts of device distal end extend towards central axis and proximal end, and are interconnected on theirs
Distal side mast end makes distal side mast end be located at the nearside of the farthest side section of device, is connected with the connection type of delivery device using screw thread
It connects, proximal end covers filter membrane.Although left auricle of heart distal end, caged made of cutting can be avoided damage to a certain extent
Structural tension is little, and structure is really up to the mark to damage left auricle of heart endothelium.In addition, the plugging device lacks closure disk, then use caged
Structure causes the function of positioning and block to combine in same structure, can not adapt to different shape left auricle of heart, substantially increase closure
Difficulty.
As it can be seen that there is also many problems for above-mentioned patent.
Summary of the invention
In order to overcome drawbacks described above, the present invention provide it is a kind of it is scalable, direction is adjustable, adapts to individual difference, and
And the occluder for left auricle with multiple leak.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of occluder for left auricle is designed, is made of the plugging umbrella of order connection and closure disk, the plugging umbrella and closure
It is connected between disk by the elastic being located on the two axis, the two is woven by memory wire, and can be passed through to push and be received
In on axis；The plugging umbrella is located at the distal end of occluder for left auricle, is in umbrella, concave surface is towards distally；The elastic is
The flexible cylinder of helical form；The umbrella cover of the plugging umbrella position and coating woven by polytetrafluoroethylene (PTFE) silk of the disk for blocking disk and
At can only pass through the close nethike embrane of blood.
The plugging umbrella is double-layer umbrella, and the edge of double-layer umbrella connects, and axle center sets interval.
Hangnail is arranged in the plugging umbrella edge, and hangnail is " u "-shaped or " V " shape.
The elastic is cut into medical stainless steel.
The memory wire is Nitinol.
The closure disk is made of two disks, is divided into disk distal face and disk proximal side, the edge spiral of two disks
Silk is connected with shape of threads.
The taenidium is nitinol alloy wire.
Above-mentioned technical proposal of the invention has the following advantages: 1, plugging device is integrally woven by Nitinol, is different from
The plug-ins plugging device such as caged or single umbrella adds plugging umbrella framework using disk is blocked, completes point of closure and positioning function
From so that plugging device is suitable for the left auricle of heart of different shape.2, the double-deck plugging umbrella being recessed can position simplerly, be not required to
Consider the distance problem of development mark and no marks distal end, in addition the hangnail help at plugging umbrella edge is more stably fixed to
In left auricle of heart, not easily to fall off and sliding；3, the elastic rod of helical structure made of stainless steel tube cutting can be released according to different
It puts angles and positions to be bent and stretched, it is secondary fixed during realizing release to block being not fixed for disk and plugging umbrella position
Position reduces the requirement for operating and discharging to doctor, increases the safety of operation；4, the Nitinol metal around disk is blocked
The helicitic texture that is entwined of silk can help to block disk seal and block up left auricle of heart mouth, i.e., the left auricle of heart mouth of any shape include it is round and
The case where oval or other irregular shapes, can accomplish to block comprehensively, greatly reduce the wind for equipment periphery fistula occur
Danger.In summary 4 points, this plugging device can reduce the operation difficulty of left atrial appendage occlusion art, greatly improve the safety of operation,
Reduce the appearance of postoperative complications.
Detailed description of the invention
Fig. 1 is the overall schematic of occluder for left auricle of the present invention；
Fig. 2 is the concrete structure diagram of elastic in occluder for left auricle of the present invention；
Fig. 3 is the concrete structure diagram that disk is blocked in occluder for left auricle of the present invention；
Fig. 4 is the release process in a specific implementation case of occluder for left auricle of the present invention.
In figure:
1, plugging device；2, plugging umbrella；3, elastic；4, disk is blocked；5, internal layer umbrella；6, outer layer umbrella；7, interior outer connector；8,
Block disk disk；9, disk-column connector；10, taenidium；11, threaded connector；12, close nethike embrane；14, disk distal face；15, disk
Proximal side；16, plugging umbrella edge；17, umbrella internal layer proximal end；18, umbrella outer layer proximal end；19, disk distal face distal end；20, fixed hangnail；
21, cylinder；22, column-umbrella interconnecting piece；23, column-disk interconnecting piece；24, delivery sheath；25, conveying lever.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing.
Occluder for left auricle 1 is by plugging umbrella 2, elastic 3, closure disk 4, disk-column connector 9 and 11 groups of threaded connector
At.Plugging umbrella 2 in occluder for left auricle, the structure for blocking disk 4 are formed by nitinol alloy wire braiding heat treatment shaping, whole
Frame is softer, is readily delivered, discharges and positions.The umbrella cover of plugging umbrella 2 and the disk for blocking disk 4 are coated to be compiled by polytetrafluoroethylene (PTFE) silk
The close nethike embrane 12 (Fig. 1) of blood can only be passed through made of knitting.
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, fixed hangnail 20.Internal layer umbrella 5 and outer layer umbrella 6 select nitinol alloy wire to weave, the plugging umbrella edge of two layers of plugging umbrella
16 are connected, and the central axis of two layers of plugging umbrella is connected by interior outer connector 7, and close nethike embrane 12 is viscous by biocompatibility viscose glue
It is attached to two layers of umbrella surface.After plugging device release, double-layer umbrella facilitates strong fix.The fixation hangnail 20 passes through metal
Cutting technique is cut into " u "-shaped or " V " shape, is fixed on plugging umbrella edge 16, and bifurcated is outwardly；It is fixed in plugging device expansion
Hangnail 20 enters left auricle of heart wall and avoids the relative displacement of plugging device 1 Yu left auricle of heart for being anchored plugging device 1.Interior outer connector 7
It is made by stainless steel, for collecting the Nitinol wire of internal layer umbrella 5 and outer layer umbrella 6, connects internal layer umbrella proximal end 17 and outer layer
The connection between double-layer umbrella is realized, so that the structure of plugging umbrella is more stable and secured in umbrella proximal end 18.(Fig. 1)
Blocking disk 4 includes 10 three parts of disk distal face 14, disk proximal side 15 and taenidium, constitutes the NiTi of disk distal face 14
Alloying metal silk converges in the disk-column connector 9, and the Nitinol wire of composition disk proximal side 15 converges in described
Threaded connector 11 in.The edge of disk distal face 14 and disk proximal side 15 is connected with taenidium 10, and taenidium 10 selects NiTi
Alloy wire is bent, and whole is in shape of threads, and auxiliary blocks disk seal and blocks up left auricle of heart mouth, prevents left auricle of heart mouth edge from thrombus occur and let out
Dew.The shape of the closure disk 4 can change with disk-the distance between column connector 9 and threaded connector 11 and be changed.Initially
When, it blocks disk 4 and is compressed into column in delivery sheath 24, during plugging device 1 discharges, block the shape of disk 4 gradually by column
Become flat, and after complete release, during left auricle of heart shrinks diastole, the shape for blocking disk 4 can be with left auricle of heart
Mouthful shape and change, to ensure under any state, block disk can be blocked completely (Fig. 3) to left auricle of heart mouth.
Such as Fig. 2, elastic 3 includes cylinder 21, column-umbrella interconnecting piece 22 and column -23 three parts of disk interconnecting piece.The cylinder 21
Guarantee that cylinder possesses according to the density of the thickness control screw thread of stainless steel tube for the structure for the shape of threads that stainless steel tube is cut into
Enough support forces, while there is bending, flexible performance, for example, when opposite on the lower side, the elastic with left auricle of heart mouth of delivery sheath
It is bent upwards, the compression of upside spiral position, bending effect is realized in the expansion of downside spiral position.In addition, column-umbrella interconnecting piece 22
It is cylindrical in shape with column-disk interconnecting piece 23, the cylinder inside diameter of two interconnecting pieces is consistent with cylinder internal diameter.By the Nitinol of plugging umbrella
Silk is pooled in column-umbrella interconnecting piece 22, completes the connection between plugging umbrella and cylinder by interior 7 clip of outer connector, likewise,
The nitinol alloy wire for blocking disk distal face distal end 19 is pooled in column-disk interconnecting piece 23, is connected by disk -9 clip of column connector
It connects, with this, realizes 3 pairs of the elastic connections and supporting role for blocking disk 4 and plugging umbrella 2.
Disk-column connector 9 and threaded connector 11 are made of stainless steel.The disk-column connector 9 include it is internal not
Become rusty steel hose and external clip, is separately connected elastic 3 and blocks disk 4, and the nitinol alloy wire of convergence disk distal face distal end 19 arrives
In column-disk interconnecting piece 23, clamp connection is carried out by the disk-column connector 9, is completed with this and blocks 14 NiTi of disk distal face
Connection between the fixation of alloy wire and elastic 3 and closure disk 4.Threaded connector 11 is process by stainless steel tube, proximal end
It is cased with screw thread to screw with conveying lever 25, interior distal end carries out the nitinol alloy wire that mechanical card hoop blocks disk proximal side 15.Work as operation
In, when occluder for left auricle is sent into delivery sheath release, rotation 25 handle end of conveying lever divides conveying lever 25 with plugging device 1
From.It is emphasized that disk-column connector 9 and threaded connector 11 maintain on the same axis, centre separation facilitates conveying sheath
The transmission and release of pipe 24.
Plugging device 1 is from the process discharged in delivery sheath 24 according to a in Fig. 4, b, c, d sequence.1, plugging device 1 is loaded extremely
24 distal end of delivery sheath, blocks disk 4 at this time and plugging umbrella 2 is 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 for needing to be anchored, prepare release plugging device 1；2, relative to
Conveying lever 25 withdraws delivery sheath 24, stops withdrawing after plugging umbrella 2 is gradually spread out, the anchor of plugging umbrella 2 is shown on real-time figure
Surely desired location is arrived, while pull back delivery sheath 24 and conveying lever 25, so that the hangnail on plugging umbrella enters the positioning of left auricle of heart wall；
3, it keeps conveying lever 25 motionless, withdraws delivery sheath 24, so that elastic 3 all releases delivery sheath 24, drop back simultaneously at this time
Delivery sheath 24 and conveying lever 25 make delivery sheath 24 withdraw from left auricle of heart mouth, and elastic 3 is made to be in the state stretched, from
And guarantees that 1 fixation of plugging device will not relax and fall off；4, delivery sheath 24 is withdrawn relative to conveying lever 25, so that blocking disk 4 gradually
Expansion, flat-disk shape is gradually released to by long column shape, and be plugged in left auricle of heart mouth.Pass through transesophageal ultrasonography image and drawing
Test determine block disk 4 and plugging umbrella 2 it is each it is self-positioning after the completion of, unwinding thread connector 11, so that plugging device 1 and conveying lever
25 separation, withdraw from delivery sheath 24 and conveying lever 25 (Fig. 4).
Plugging device 1 according to the present invention has the function of can be recycled and discharge again, when 1 releasing position of plugging device is bad
Perhaps perhaps half recycling can be recycled full when plugging effect is bad to device selects suitable releasing position or replacement to close
It is discharged again again after suitable size plugging device 1.It pulls back push rod 25 while pushing delivery sheath 24 forward, so that blocking
Disk 4, elastic rod 3, plugging umbrella 2 are gradually taken in inside delivery sheath 24, and suitable releasing position or replacement suitable size are reached
It is discharged again after plugging device.
Plugging device 1 of the present invention can be adapted for the left auricle of heart of different shape, and the plugging umbrella 2 of recess makes plugging device
Release is more easy and accurate, and compared with the plugging umbrella of protrusion, the present invention does not need operator and estimates plugging umbrella front end and anchor
Determine the distance between area, reduce operating difficulty, improves success rate of operation；Ductus arteriosus occluder umbrella 2 of the present invention and envelope
It is connected between stifled disk 4 with an elastic 3, elastic 3 can be allowed with telescoping collapse and be blocked disk 4 with plugging umbrella 2 not same
On one axis, plugging device is improved to the adaptability of different shape left auricle of heart, it can be ensured that is realized to the left auricle of heart of different shape
It blocks completely；The taenidium 10 around disk 4 is blocked, can assist blocking the closure left auricle of heart mouth of disk 4, prevent left auricle of heart mouth edge from occurring
Thrombus leakage, can also play certain fixed function.Therefore, because having releasing position selection accurate, plugging device is scalable, side
To it is adjustable the advantages that, the present invention facilitate reduce operating difficulty, improve success rate of operation.
The above, preferable specific embodiment only of the invention, but the scope of protection of the present invention is not limited thereto, appoints
What those familiar with the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and invents
Design is subject to equivalent substitution or change, should all cover in protection scope of the present invention.
Claims (2)
1. occluder for left auricle is made of, it is characterised in that: the plugging umbrella and closure the plugging umbrella of order connection and closure disk
It is connected between disk by the elastic being located on the two axis, the two is woven by memory wire, and can be passed through to push and be received
In on axis；The plugging umbrella is located at the distal end of occluder for left auricle, is in umbrella, concave surface direction distal end, and the plugging umbrella
Edge for double-layer umbrella, double-layer umbrella connects, and axle center sets interval；The plugging umbrella edge is arranged hangnail, and hangnail be " u "-shaped or
" V " shape；The elastic is the flexible cylinder of helical form, is cut by medical stainless steel；The closure disk is by two disks
It constitutes, is divided into disk distal face and disk proximal side, the edge of two disks is connected with taenidium with shape of threads；The plugging umbrella position
The close nethike embrane of blood can only be passed through made of umbrella cover and the coating braiding as polytetrafluoroethylene (PTFE) silk of the disk for blocking disk.
2. occluder for left auricle as described in claim 1, it is characterised in that: the memory wire is Nitinol；It is described
Taenidium is 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106344100A CN106344100A (en) | 2017-01-25 |
| CN106344100B true 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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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691521B (en) * | 2017-02-08 | 2023-08-04 | 宁波迪创医疗科技有限公司 | Plugging device |
| CN107049373B (en) * | 2017-02-08 | 2023-09-26 | 宁波迪创医疗科技有限公司 | Plugging device |
| CN207785227U (en) * | 2017-03-17 | 2018-08-31 | 广州新诚生物科技有限公司 | A kind of occluder for left auricle |
| CN118141450A (en) * | 2017-05-25 | 2024-06-07 | 泰尔茂株式会社 | Adhesive closure 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 |
| CN107595347B (en) | 2017-09-25 | 2019-11-26 | 潘湘斌 | A kind of the left atrial appendage occlusion device assembly and its interventional method of repeatable folding and unfolding |
| CN110215252B (en) * | 2018-03-02 | 2021-12-03 | 上海微创医疗器械（集团）有限公司 | Occluder and medical instrument |
| CN108567461A (en) * | 2018-03-13 | 2018-09-25 | 刘金伟 | A kind of Asymmetric bidiscoidal left atrial appendage occlusion device |
| CN109758199B (en) * | 2019-01-28 | 2020-05-19 | 武汉唯柯医疗科技有限公司 | Vascular plug and vascular plug assembly |
| JP2022521835A (en) * | 2019-03-25 | 2022-04-12 | ラミナー インコーポレイテッド | Devices and systems for treating the 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 |
| CN112656474B (en) * | 2019-10-15 | 2022-09-02 | 先健科技(深圳)有限公司 | Plugging device |
| CN110974331B (en) * | 2019-12-16 | 2022-02-25 | 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 |
| CN116685273A (en) * | 2021-12-30 | 2023-09-01 | 先健科技(深圳)有限公司 | Plugging device and plugging system |
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| US6689150B1 (en) * | 1999-10-27 | 2004-02-10 | Atritech, Inc. | Filter apparatus for ostium of left atrial appendage |
| US6551303B1 (en) * | 1999-10-27 | 2003-04-22 | Atritech, Inc. | Barrier device for ostium of left atrial appendage |
| US7338514B2 (en) * | 2001-06-01 | 2008-03-04 | St. Jude Medical, Cardiology Division, Inc. | Closure devices, related delivery methods and tools, and related methods of use |
| ATE474503T1 (en) * | 2005-11-11 | 2010-08-15 | Occlutech Gmbh | OCCLUSION INSTRUMENT FOR CLOSING A HEART EAR |
| JP2015524306A (en) * | 2012-07-26 | 2015-08-24 | ユニバーシティー オブ ルイヴィル リサーチ ファウンデーション，インコーポレーテッドＵｎｉｖｅｒｓｉｔｙ Ｏｆ Ｌｏｕｉｓｖｉｌｌｅ Ｒｅｓｅａｒｃｈ Ｆｏｕｎｄａｔｉｏｎ，Ｉｎｃ． | Atrial appendage closure device and related methods |
| CN104274224B (en) * | 2014-09-29 | 2017-01-25 | 上海形状记忆合金材料有限公司 | Left atrial appendage occlusion device |
| CN104352260B (en) * | 2014-10-13 | 2017-11-21 | 深圳市科奕顿生物医疗科技有限公司 | Left atrial appendage occlusion system |
| CN204971418U (en) * | 2015-07-28 | 2016-01-20 | 杭州德诺科技有限公司 | A left auricle occluding device |
| CN105054980B (en) * | 2015-09-11 | 2017-05-17 | 上海形状记忆合金材料有限公司 | Self-adaptive variable angle plugging device |
| CN105662512B (en) * | 2015-12-28 | 2018-09-21 | 广东脉搏医疗科技有限公司 | A kind of atrial appendage occlusion implant |
| CN105520765A (en) * | 2016-01-29 | 2016-04-27 | 上海形状记忆合金材料有限公司 | Recessed left aurcle plugging device |
-
2016
- 2016-10-11 CN CN201610885243.7A patent/CN106344100B/en not_active Expired - Fee Related
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| CN106344100A (en) | 2017-01-25 |
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