CN209437310U - Split type occluder for left auricle - Google Patents
Split type occluder for left auricle Download PDFInfo
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- CN209437310U CN209437310U CN201820405943.6U CN201820405943U CN209437310U CN 209437310 U CN209437310 U CN 209437310U CN 201820405943 U CN201820405943 U CN 201820405943U CN 209437310 U CN209437310 U CN 209437310U
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- flow film
- left auricle
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Abstract
Occluder for left auricle provided by the utility model includes that proximal end blocks disk, the choked flow film in proximal end closure disk, and the distal end fixation member being connected with the distal end that the proximal end blocks disk.The distal end fixation member is located at the proximal end and blocks the distal side of disk and closed at both ends.The split type occluder for left auricle further includes flexible connecting member, and described flexible connecting member one end is connected with the choked flow film, and the other end is limited in the proximal end skeleton or distal end skeleton that the proximal end blocks disk.The choked flow film of the occluder for left auricle, which repeatedly blocks after disk deforms with proximal end, all has roughly the same accumulation shape in the axial direction that proximal end blocks disk, conducive to the minimum gauge of mating sheath is optimized, and ruptures after avoiding choked flow film from repeatedly deforming.
Description
Technical field
The utility model relates to Cardiac interventional medical instruments field more particularly to split type occluder for left auricle.
Background technique
Auricular fibrillation is common arrhythmia cordis, will lead to heart blood circulation and has some setbacks, so that blood is easy to be frozen into
Block can cause apoplexy if clot flows into brain.Percutaneous left atrial appendage occlusion art is excellent because wound is small, operating time is short, operation is simple etc.
Point has become the first choice of prevention atrial fibrillation apoplexy.Percutaneous left atrial appendage occlusion art be established in patient's blood vessel using seal wire and sheath it is defeated
Channel is sent, then the occluder for left auricle with shape memory function is placed in sheath, under the push of conveying wirerope, Zuo Xin
Ear plugging device is transported to the predetermined position of left auricle of heart cavity along sheath, is then pushed out sheath release.Before being pushed out sheath,
Occluder for left auricle is compressed in sheath, while being elongated axially along sheath, and plugging device can lose sheath after releasing sheath
It constrains and restores to natural shape, to separate the blood flow circulation between left auricle of heart cavity and atrium sinistrum.
Split type occluder for left auricle usually has universality structure as shown in Figure 1, including distal end interconnected is consolidated
Determine component 600 and proximal seal component 400, wherein distal end fixation member 600 is used to be implanted into the cavity 02 of left auricle of heart to keep
Entire plugging device is motionless with respect to cavity 02, and proximal seal component 400 is for closing the oral area of left auricle of heart, and blocking blood flow is from atrium sinistrum
01 flow into cavity 02 in and thrombus from cavity 02 enter atrium sinistrum 01.Proximal seal component 400 generally includes proximal end and blocks disk
With the choked flow film being set in proximal end closure disk.
Occluder for left auricle production detect process, occluder for left auricle usually repeatedly need to be drawn in and be pulled out sheath with
It checks whether qualification, and determines therefrom that matched sheath specification.However, to be pulled to the limit in plugging device every time long for choked flow film
Deformation when spending is random aggregation, leads to maximum radial dimension phase of the same instrument measured under multiple limit elongated condition
Difference it is larger, can matched sheath specification correspondingly fluctuate in a big way.Also, the random aggregation of choked flow film causes instrument to exist
When passing in and out sheath, the frictional force between choked flow film and proximal end closure disk is larger, and after repeatedly passing in and out sheath, choked flow film is easily broken,
Lead to scrap of the product.Clinically, sheath is thicker, bigger to injury of blood vessel, under the premise of not influencing therapeutic effect, doctor's tendency
Using thinner sheath.When using same sheath, maximum radial dimension of the occluder for left auricle under limit elongated condition is bigger,
The sheath power out for needing doctor to apply is bigger, be easy to cause doctor's misoperation, cannot accurately discharge and block in left auricle of heart oral area
Device, or because larger impulse force damages defect perienchyma, influence therapeutic effect.Therefore, it is necessary to which regular choked flow film is sealed in left auricle of heart
Deformation when stifled device limit elongated condition, accurately by the occluder for left auricle of same specification in multiple limit elongated condition
Maximum radial dimension limits in smaller range, and then optimizes the minimum gauge of suitable sheath and improve product qualification rate.
Utility model content
The purpose of this utility model is that overcoming the drawbacks described above of the prior art, provides and elongated shape along axial limit
Under state, the split type occluder for left auricle of ordered deformation can occur for the choked flow film included.
The split type occluder for left auricle includes that proximal end blocks disk, blocks the choked flow film in disk set on the proximal end,
The distal end fixation member being connected with the distal end for blocking disk with the proximal end, the distal end fixation member are located at the proximal end and block disk
Distal side, the more braided wires or more metallic rods for forming the distal end fixation member are respectively in the distal end fixation member
It is proximally and distally concentrated in together.The split type occluder for left auricle further includes flexible connecting member, the flexible connecting member
One end is connected with the choked flow film, and the other end is limited in the proximal end skeleton or distal end skeleton that the proximal end blocks disk.
In one embodiment, the other end of the flexible connecting member is by being wrapped in the proximal end skeleton or distal end skeleton
And it is limited.
In one embodiment, the proximal end blocks disk by the limiting condition along its axial elongation, the resistance of the choked flow film
Flow area the proximal end block dish axle to projected length be greater than or equal to the proximal end block disk nature unfolded state maximum
Radius.
In one embodiment, when the proximal end closure disk is nature unfolded state, the flexible connecting member is in the proximal end
Block disk fixed point and the flexible connecting member the choked flow film tie point, proximal end block dish axle to projection between
Distance be d1；The proximal end blocks disk when being by limiting condition along axial elongation, and the flexible connecting member is in the proximal end
Block disk fixed point proximal end block dish axle to projection, with the flexible connecting member the choked flow film tie point close
End seal block up dish axle to the distance between projection be d2；The flexible connecting member blocks the fixed point of disk in proximal end in the proximal end
Block dish axle to projection, with the choked flow film proximal end block dish axle to projection center between at a distance from be d3；Wherein,
D2 is greater than or equal to d1, and d2 is less than d3.
In one embodiment, the proximal end skeleton includes proximal end face and proximal fasteners, and the distal end skeleton includes remote
End surfaces and distal fastener, it further includes the flange being connected with the proximal end face and distal surface, institute that the proximal end, which blocks disk,
It states proximal end face and the distal surface respectively includes more braided wires, the periphery of the choked flow film is limited in the flange；Or
The periphery of the choked flow film is limited in the region close to the flange of the proximal end face；Or the periphery limit of the choked flow film
In the region close to the flange of the distal surface.The proximal fasteners and distal fastener are respectively used to that institute will be formed
The end for stating more braided wires of proximal end face and distal surface is gathered together to prevent more braided wires from scattering.
In one embodiment, which includes under the natural unfolded state of plugging device, positioned at the proximal end of plugging device
And interlaced braiding constitutes the more braided wires that the proximal end blocks the proximal end face of disk, and by the proximal end of the more braided wires
The proximal fasteners that end is gathered together to prevent more braided wires from scattering.The proximal end of the flexible connecting member and the proximal end face
In one or several braided wires that are located near the proximal fasteners be connected, the distal end of the flexible connecting member and the choked flow film
Central area is connected.
The choked flow film includes periphery and choked flow area, and the periphery is connected with proximal end closure disk and limits choked flow film
It is blocked in disk in proximal end, i.e., the described choked flow film blocks disk by the proximal end by periphery and limits.The periphery and choked flow area are with institute
It states choked flow film and the proximal end blocks the line of disk as line of demarcation.The choked flow film blocks the natural expansion shape of disk in the proximal end
It can be planar sheet under state, can also be non-planar sheet.The center of the proximal end face is with respect to its marginal zone towards close to described
It protrudes in the direction of distal end fixation member；Alternatively, the proximal end face is plane.
" it is by the limiting condition along axial elongation that the proximal end, which blocks disk, ", can be in the split type occluder for left auricle
Natural unfolded state under, left hand catch proximal end block disk proximal fasteners, the right hand hold distal end fixation member and keep not
Dynamic, left hand is long to its limit towards direction (axial direction of proximal end closure disk) elongation proximal end closure disk far from the distal end fixation member
When spending, the deformation that the proximal end blocks the choked flow film in disk is restricted, and has larger accumulation in the axial direction for blocking disk along proximal end
Length has smaller ulking thickness in the radial direction that proximal end blocks disk.The limiting length refers to that both hands cannot again draw plugging device
When long, in the upper corresponding plugging device length of plugging device axial direction.For example, when the proximal end blocks disk, to be pulled to its limit along axial direction long
When spending, the choked flow film extends from the line that the periphery and the proximal end block disk towards the same side far from the line.Again
For example, being directed toward the side of the line along proximally fastener when the proximal end blocks disk and is pulled to its limiting length along axial direction
To the choked flow film is gradually increased in the radial ulking thickness that proximal end blocks disk, and the radial dimension of the proximal seal component is gradually
Increase.
The proximal end, which blocks disk and can be, has grid by what the more braided wires with shape memory function were knitted to form
Disk, but such as the network management that is knitted to form of the braided wires that intersect grid by two groups by one formed through mold heat setting process
Disk-like structure.The proximal end, which blocks disk, can also be the disk with grid formed by the cuts in metallic pipe with shape memory function
Shape structure.Proximal end face, distal surface and the flange that proximal end blocks disk are different parts of the same network management after mold thermal finalization,
Either same metal network management is cut into the different parts after more metal strips after mold thermal finalization, i.e., the described proximal end blocks disk
After being elongated to its limiting length, the proximal end face, distal surface and flange constitute a network management.
The proximal fasteners can be independently of the element that proximal end blocks the proximal end face setting of disk.In some embodiments
In, which can also be used to be connected with the conveying wirerope of left auricle of heart conveyer.For example, the proximal fasteners are provided with
The proximal end of internal screw thread or externally threaded metal tube, the more braided wires is all contained in the metal tube, and with the gold
Belong to pipe to weld together, can not only prevent braided wires from scattering, but also can engage and be connected with the screw thread of the conveying wirerope of occluder for left auricle.
In another example the proximal fasteners are the metal tubes of smooth outer surface, the proximal end of more braided wires is all contained in the metal
In pipe, and weld together with the metal tube, the other end closing which is not connected with more braided wires.Example again
Such as, the proximal fasteners are metal tubes, and the proximal end of the more braided wires is all contained in the metal tube, and with it is described
Metal tube welds together, and the distal end of the metal tube is located at the inside that the proximal end blocks disk, and the proximal end of the metal tube is set
There is the internal screw thread engaged with the conveying wirerope of occluder for left auricle.
The distal fastener can be independently of the fixing piece that proximal end blocks the distal surface setting of disk.As a kind of implementation
Example, the distal fastener is the metal tube of smooth outer surface, and the distal end of more braided wires is all contained in the metal tube,
And weld together with the metal tube, the distal end of the metal tube is connected with the proximal end of the distal end fixation member.As another
Kind embodiment, the distal fastener can be to form a branch of volume that the multiply braided wires of the distal surface are formed after thermal finalization
Silk is knitted, which is connected with distal end fixation member simultaneously.
As one embodiment, the periphery of choked flow film can be sewn on flange with suture, or be sewn in the proximal end face
Or the braided wires of the close flange of distal surface；As another embodiment, the periphery of the choked flow film can be limited with medical glue
In flange, or it is limited in the braided wires of the close flange of the proximal end face or distal surface.No matter the periphery of choked flow film and close
End seal is blocked up disk and is fixedly connected using which kind of mode, and the line of all tie points of disk is all blocked using the periphery of choked flow film and proximal end
The choked flow area opposite proximal end fastener of choked flow film or the positional relationship of distal fastener are characterized as object of reference.Preferably, institute
Plane where stating line blocks the axial direction of disk perpendicular to proximal end.
In the state that in the proximal end, closure disk is unfolded naturally, the proximal end blocks the proximal end face and/or distal end table of disk
Face can be plane；The proximal end face and/or distal surface can also be non-planar, such as proximal end face and/or distal surface
Center is with respect to its periphery, towards the center close to the direction of distal end fixation member protrusion or proximal end face towards proximal end
Protrusion.When the proximal end face is non-planar, and its center is with respect to its periphery, towards the direction of the close distal end fixation member
When protrusion, the choked flow film accordingly can have shape identical with the proximal end face, in order to be bonded with proximal end face,
Such as but (such as cross section is in Ω for the choked flow area cup-shaped (such as cross section is in N-shaped or circular arc type) that protrudes from periphery or hat shape
Type), or with the conical surface for being similar to cone, or similar to including that cone is truncated the conical surface after the vertex of a cone and top surface, resistance
The periphery of stream film is limited in the flange, and choked flow area is covered in the center of the proximal end face, at this point, the choked flow film
Choked flow area is identical as the equivalent concave surface angle of the center of the proximal end face.
The proximal end of split type occluder for left auricle suitable for the utility model blocks the matching of disk and choked flow film, can be following
Any: proximal end blocks the proximal end face of disk and/or distal surface is plane, and choked flow film is in planar sheet, the periphery of choked flow film
It is limited in flange, or is limited in the braided wires of proximal end face or distal surface；Or, proximal end blocks the proximal end face of disk and/or remote
End surfaces be it is aforementioned non-planar, choked flow film is open and flat sheet, and the periphery of choked flow film is limited in proximal end face or distal surface
Braided wires, preferably adjacent to the braided wires of flange；Or, the proximal end face that proximal end blocks disk is plane, choked flow film is above-mentioned non-flat
Face shape, such as cup-shaped or hat shape, the periphery of choked flow film are limited in the braided wires of flange or proximal end face or distal surface；Or,
Proximal end block the proximal end face of disk and distal surface be it is aforementioned non-planar, choked flow film is molded non-planar above-mentioned, such as cup-shaped
Or hat shape, the periphery of choked flow film are limited in flange, or are limited in the braided wires of proximal end face or distal surface.
The flexible connecting member has biocompatibility.In the case where proximal end blocks disk nature unfolded state, the flexible connection
Part can be not exceptionally straight, just exceptionally straight when elongating the proximal end and blocking disk to limiting length.As a preferred embodiment, the flexibility is even
Fitting can be suture, and in its natural state, length is unadjustable.As another embodiment, the flexible connecting member
It under a stretching force can be elongated.No matter flexible connecting member whether can be elongated, the length when it is pulled to the limit, that is, when being straightened
Degree, when should be greater than or being equal to proximal end closure disk in its natural state, proximal fasteners or distal fastener subtract with a distance from flange
The radius for removing choked flow film, when being stretched to limiting length in order to plugging device, it is long that flexible connecting member is also pulled to its limit simultaneously
Degree, to drive choked flow area opposite proximal end fastener or the distal fastener movement of choked flow film.It is appreciated that blocking disk in proximal end
When by along its axial elongation to limiting length, projected length of the choked flow film in the axial direction is greater than or equal to proximal end closure disk and exists
Maximum radius under natural unfolded state.
The other end of the flexible connecting member be limited in the proximal end face close to one of the proximal fasteners or
Several braided wires；Or, the other end of the flexible connecting member is limited in the close distal fastener of the distal surface
One or a few braided wires；Or, the other end of the flexible connecting member is limited in the proximal fasteners；Or, the flexibility is even
The other end of fitting is limited in the distal fastener.
The flexible connecting member can be a single cord, or at least two single cords, every single cord and choked flow film
Tie point only one.The flexible connecting member can also be a medical line and be formed at least twice to the different zones for wearing choked flow film
At least two strands.It is preferably the multiple when the tie point of the flexible connecting member and choked flow film is at least two spaced point
The tie point of dispersion is all located at same circumference, or the central symmetry about choked flow film substantially.It is highly preferred that the multiple dispersion
Tie point be located at the same circumference that there is identical central with the choked flow film, and it is better closer to the center.More preferably,
The tie point for multiple dispersions that the sub-thread flexible connecting member connects the center of the choked flow film or the multi cord is formed leans on
The center of the nearly choked flow film.
In other specific embodiments, choked flow film periphery is limited in flange, and flexible connecting member can be one end and be connected to choked flow
For film close to the region on periphery, the other end is connected to the braided wires of the close flange of proximal end face or distal surface.
In aforementioned any split type occluder for left auricle, it is attached that the proximal end closure disk can fit in left auricle of heart oral area opening
Close left atrial wall cooperates with the choked flow film by the drawing realization of distal end fixation member and blocks left auricle of heart oral area, or
Left auricle of heart cavity is filled in close to the position of oral area, plays similar plug and realizes and block left auricle of heart oral area.
Occluder for left auricle described above blocks the close of disk using the choked flow area and proximal end of flexible connecting member connection choked flow film
Skeleton is held, or connects the choked flow area of choked flow film and the distal end skeleton of proximal end closure disk.When proximal end blocks disk along the axis of plugging device
To when being elongated, choked flow film can be pull opposite proximal end fastener or distal fastener movement by flexible connecting member, thus to close
End fastener or distal fastener protrusion, but the periphery of choked flow film is still limited in braided wires corresponding to flange, thus entire resistance
It flows film and forms tent like.When proximal end, which blocks disk, is pulled to limiting length, whole choked flow film is blocked the proximal end face of disk by proximal end
Braided wires or distal surface braided wires block disk along proximal end radial compression together, be located at choked flow film and proximal end and block disk
Line the same side, choked flow film proximal end block disk radial direction ulking thickness it is smaller, proximal end closure dish axle to most raft
Product length is larger.The direction of the line is directed toward along proximally fastener, whole choked flow film blocks the radially heap of disk in proximal end
Long-pending thickness gradually increases, and forms cone-shaped (being referred to as chock shape) for being similar to shuttle or being cut out top.By proximal end sealing
Part pulls sheath similar to chock is drawn in into sheath, facilitates doctor that can be assembled into proximal end seal member with lesser pulling force
Sheath and release sheath release, thus avoid doctor from applying high thrust and cause misoperation, and then cannot be accurately on a left side
Auricle oral area discharges plugging device, or because larger impulse force damages defect perienchyma.Due in the occluder for left auricle of same specification
The constant dimension of choked flow film, thus choked flow film can all keep identical deformation when repeatedly drawing in sheath, and then reduce proximal end
Maximum radial dimension when disk is pulled to limiting length is blocked, conducive to the sheath of minimum gauge is more accurately selected, and is avoided that
Choked flow film repeatedly passes in and out the breakage due to friction with proximal end closure disk after sheath.
Detailed description of the invention
Fig. 1 is the universality structural schematic diagram that split type occluder for left auricle blocks left auricle of heart cavity；
Fig. 2 is the signal of the split type occluder for left auricle of the utility model first embodiment offer in its natural state
Figure；
Fig. 3 be split type occluder for left auricle shown in Fig. 2 in its natural state along axial direction split after schematic diagram；
Fig. 4 is that the proximal end for the split type occluder for left auricle that another embodiment of the utility model provides blocks disk in natural shape
State lower edge axially split after schematic diagram；
Fig. 5 a is that the proximal end of split type occluder for left auricle shown in Fig. 2 blocks the schematic diagram that disk is elongated；
Fig. 5 b is that the proximal end of split type occluder for left auricle shown in Fig. 2 blocks schematic diagram when disk is pulled to limiting length；
Fig. 5 c is that the proximal end of split type occluder for left auricle shown in Fig. 2 blocks disk in nature and is pulled to limiting length
When, proximal end block dish axle to projection change schematic diagram.
Fig. 6 is that the split type occluder for left auricle of the utility model second embodiment is shown in nature along what axial direction was splitted
It is intended to；
Fig. 7 is that the proximal end of occluder for left auricle shown in Fig. 6 blocks the schematic diagram after disk is elongated；
Specific embodiment
The split type occluder for left auricle of the utility model is used to separate blood circulation between left auricle of heart cavity and atrium sinistrum,
The choked flow film for blocking disk including proximal end, being limited in proximal end closure disk, and block disk with proximal end and be connected and positioned at proximal end closure
The distal end fixation member of the distal side of disk.Wherein, the proximal end blocks disk for being placed in the atrium sinistrum around left auricle of heart opening
Wall is limited in outside left auricle of heart oral area by the drawing of distal end fixation member, and the maximum radial edge position of proximal seal component is tight
It pastes the left atrial wall of left auricle of heart opening and blocks the oral area of left auricle of heart cavity.The distal end fixation member is for being implanted into left auricle of heart
Cavity in, in the intracavitary radial development of left auricle of heart and be close to the cavity wall of left auricle of heart, to be fixed on the left heart by radial support power
Ear is intracavitary, is usually usually the internal chamber wall of abutting left auricle of heart at the maximum radial profile of distal end fixation member, thus by described close
End seal is blocked up disk and is positioned in the left atrial wall around the oral area of left auricle of heart cavity or left auricle of heart cavity.
It is the network management being knitted to form by the more braided wires with shape memory function that the proximal end, which blocks disk, through mold hot
The disk-like structure formed after sizing can also be the reticular structure formed by the cuts in metallic pipe with shape memory function.It is described
Distal end fixation member can be formed by the cuts in metallic pipe with shape memory function, can also be knitted to form by braided wires.It is described remote
End fixation member be it is enclosed, i.e., more braided wires of formation distal end fixation member or more metallic rods are fixed in distal end respectively
Component is proximally and distally concentrated in together, such as shown in patent application PCT/CN2015/100067 Fig. 7-8 and can be somebody's turn to do
The enclosed construction of distal end fixation member described in text relevant to this two figure in the specification of patent application.This field is common
Technical staff can further appreciate that described in the utility model solid in enclosed distal end using the PCT Patent Application as reference
Determine component.The utility model is hereby incorporated the PCT Patent Application and is intended to illustrate that the enclosed distal end fixation member is suitable for this reality
With novel, the utility model specific embodiment should be used as.
Occluder for left auricle provided by the utility model is described in detail below with reference to attached drawing and text.It retouches below
The structure for each split type occluder for left auricle stated is only used for for example, not constituting to the utility model claims book
The limitation of protection scope.To those skilled in the art, without departing from the concept of the premise utility, may be used also
Several modifications and improvements are made outside the split type occluder for left auricle that the utility model specific embodiment discloses, these should belong to
The protection scope of the utility model.
For the structure for more clearly describing split type occluder for left auricle, limit herein term " distal end ", " proximal end " and " convex
Edge ", the term are the common terminology in interventional medical device field.Wherein, when " distal end " indicates simulation surgical state, far from operation
One end of person, when " proximal end " indicates simulation surgical state, by one end of proximal operator." flange " refers to that proximal end blocks and is used in disk
Connect the cyclic annular position of proximal end face and distal surface.Components A " is limited in " B, and A is by B defined position for expression, such as can be A
It is fixed and cannot be shifted with respect to B by B, can also be A and be flexibly connected and A and B other side can be lived relatively in allowed limits with B
It is dynamic.
Please also refer to Fig. 2, Fig. 3 and Fig. 5 a, the split type occluder for left auricle of the utility model first embodiment offer
100 include that proximal end blocks disk 180, and the distal end fixation member 200 being connected with the distal end that proximal end blocks disk 180 is set to proximal end and blocks
Choked flow film 300 and flexible connecting member 400 in disk 180.Proximal end, which blocks disk 180, has shape memory function by more for one
Can the network management that is knitted to form of braided wires formed through mold heat thermal finalization, there is network, including proximal end face 181, with it is close
The opposite distal surface 182 of end surfaces 181, between proximal end face 181 and distal surface 182 and for connecting proximal end face
181 and distal surface 182 flange 183, proximal fasteners 142 and distal fastener 143.Proximal end face 181 includes center
1811 and marginal zone 1812, wherein center 1811 surrounds proximal fasteners 142, and one end is located in proximal fasteners 142,
The proximal end of the other end proximally fastener 142 extends outwardly, and is connected with marginal zone 1812 and forms angle.Marginal zone 1812 surrounds
Center 1811, and cooperate with center 1811, it is that being centrally formed for proximal end face 181 is convex around proximal fasteners 142
Platform blocks the packet of proximal fasteners 142 in disk 180 in proximal end.
In its natural state, the surface in addition to proximal fasteners 142 of proximal end face 181 and distal surface 182 remove
Surface outside distal fastener 143 is all planar, and is parallel to each other, and the corresponding proximal end of flange 183 blocks the maximum gauge of disk 180
Corresponding circumference.Proximal end face 181 includes more braided wires, constitutes proximal end skeleton with proximal fasteners 142.Distal surface
182 also include more braided wires, constitutes distal end skeleton with distal fastener 143.Proximal end face 181, distal surface 182 and convex
Edge 183 is different parts of the same network management after mold thermal finalization, convex after proximal end closure disk 180 is elongated to its limiting length
Edge 183 disappears, and proximal end face 181, distal surface 182 and flange 183 will cooperate again as a result, constitutes a network management, but choked flow
The periphery of film 300 and the line 183b for all tie points that proximal end blocks disk 180 are constant, i.e., the periphery of choked flow film 300 is with respect to institute
The position for stating line 183b is constant.
The proximal end of all braided wires of proximal end face 181 is all contained in the proximal fasteners 142, to prevent scattering.Proximal end
Fastener 142 is located at the center of proximal end face 181.The metal outer pipe 1421 of proximal fasteners 142 including smooth outer surface and with
The metal inner pipe 1422 of 1421 coaxial welding of metal outer pipe together.The proximal end for forming more braided wires of proximal end face 181 is solid
It is scheduled in the gap between metal inner pipe 1422 and metal outer pipe 1421.The inner wall of metal inner pipe 1422 be equipped with for conveying steel
The screw thread of cable engagement, in order to convey occluder for left auricle.
Under the natural unfolded state that proximal end blocks disk 180, choked flow film 300 is planar sheet, and periphery is limited in flange
183.The covering proximal end face 181 substantially of choked flow film 300, and be connected by flexible connecting member 400 with proximal fasteners 142.Specifically
Ground, in the present embodiment, flexible connecting member 400 in choked flow film 300 fixation point close to choked flow film 300 geometric center.
Choked flow film 300 can be polyester fiber film commonly used in the art, blood flow can not be allowed to pass through, and also allow for a small amount of blood flow
Pass through, but a small amount of blood flow pass through after can 300 surface of choked flow film formed thrombus, prevent later blood flow from passing through.Choked flow film 300
Periphery the corresponding braided wires of flange 183 can be limited in by suture, flange 183 can also be limited in by medical glue
Corresponding braided wires.
Flexible connecting member 400 is a suture to the four gangs of doctors formed after the central area for wearing four choked flow films 300
With suture, four bursts of suturees are located at the four points of connection that choked flow film 300 is crossed to form with the several of choked flow film 300
Same circumference centered on what center, and proximal fasteners 142 are located at the center of circle of the circumference in the projection of choked flow film 300.It can be with
Understand, four points of connection is better closer to the geometric center of choked flow film 300.Medical sutures line length commonly used in the art is not
It can be adjusted because being elongated, block disk 180 under natural conditions in proximal end, flexible connecting member 400 is not drawn as shown in Figure 3
Directly, but soft shape, Fig. 3 be only illustrate flexible connecting member 400 and choked flow film 300 and proximal fasteners 142 connection relationship and
Relative positional relationship.Flexible connecting member 400 can also be other wire bodies with biocompatibility.
Referring to fig. 2, distal end fixation member 200 is enclosed construction, and braided wires proximally and distally are gathered together respectively,
It is substantially in silent cylindrical shape, You Duogen braided wires weave, and the proximal end of the more braided wires converges at distal end and fastens
Part 143.The distal end that the proximal end of distal end fixation member 200 and proximal end block disk 180 is connected, more braided wires of distal end by with it is close
The mutually isostructural element of end fastener 142 is gathered together.The circumferential surface of distal end fixation member 200 is equipped with the proximally facing closure in end
The anchor thorn 210 of disk 180.After being implanted into the cavity of left auricle of heart, anchor thorn 210 will be pierced into the inner wall of left auricle of heart, prevent distal end fixation member
200 fall off from the intracavitary of left auricle of heart, and then entire occluder for left auricle is caused to fall into atrium sinistrum.
It is appreciated that distal fastener 143 can be the metal tube of smooth outer surface, also receiving proximal end blocks disk 180
The distal end of more braided wires of distal surface 182；Alternatively, distal fastener 143 is all waist made of more braided wires braidings,
It is the more braided wires braiding for constituting same network management that i.e. distal fastener 143, distal end fixation member 200 and proximal end, which block disk 180,
It forms, is different parts of the network management after mold thermal finalization respectively.In certain embodiments, in distal end fixation member 200
Choked flow area equipped with choked flow film (not shown), and the choked flow film can also be connected to distal end fixation member by flexible connecting member
200 distal fastener or proximal fasteners.
Please also refer to Fig. 2,3,5a~5c, left hand catches proximal fasteners 142, and the right hand holds distal end fixation member 200
And remain stationary, left hand elongates proximal end towards the direction far from the distal end fixation member 200 and blocks disk 180.Disk is blocked in proximal end
During 180 are elongated, proximal fasteners 142 will drive the central area of choked flow film 300 towards separate by flexible connecting member 400
The direction of flange 183 (line 183b) moves, and the periphery of choked flow film 300 is still limited in flange 183, and choked flow film 300 forms account
Paulin shape.It is understood that the choked flow area of choked flow film 300 can all be located at and connect when proximal end blocks disk 180 and is pulled to limiting length
The same side (outside the plane where the line) of line 183b, choked flow film 300 can be in more braided wires of proximal end face 181
Extruding under substantially form cone, and be packed together along the axial direction that proximal end blocks disk 180, and the proximally side of fastener 142
To the direction for being directed toward line 183b, choked flow film 300 is incremented by the radial ulking thickness that proximal end blocks disk 180, and formation is similar to
Chock shape, it will be understood that all braided wires of proximal end face 181 and choked flow film 300 are also formed simultaneously as shown in Figure 5 b similar
Chock shape.Deform, can uniquely derive accordingly, the choked flow film the proximal end block dish axle to projected length be substantially equal to
The proximal end blocks disk in the maximum radius of natural unfolded state.Referring to Fig. 5 c, it is nature unfolded state that proximal end, which blocks disk 180,
When, flexible connecting member 400 proximal end block disk fixed point and flexible connecting member 400 between the tie point of choked flow film 300
Distance is d1；Proximal end blocks disk 180 when being by limiting condition along axial elongation, and flexible connecting member 400 blocks disk 180 in proximal end
Fixed point and flexible connecting member 400 choked flow film 300 tie point proximal end block dish axle to projector distance be d2；It is flexible
Connector 400 blocks the axial projection of disk 180 in proximal end in the fixed point that proximal end blocks disk 180, seals with choked flow film 300 in proximal end
The distance between axial center of projection of stifled disk 180 is d3；Wherein, d2 is greater than or equal to d1, and d2 is less than d3.
As a result, compared with the prior art, the deformation of choked flow film is limited by the drawing of flexible connecting member, utilizes flexible connecting member
Drawing to ensure that choked flow film in proximal end blocks accumulation shape when disk is pulled to its limiting length roughly the same, so that optimization is close
End seal blocks up the minimum value of the maximum radial dimension of disk, is easy to use smaller sheath, and after being avoided that choked flow film repeatedly passes in and out sheath
It is damaged because blocking the friction of disk with proximal end.
In some embodiments of the utility model, proximal fasteners 142 can also be structure as shown in Figure 4, including appearance
The smooth metal outer pipe 1421 in face and the metal inner pipe 1422 together with 1421 coaxial welding of metal outer pipe, metal inner pipe 142
Inner wall be equipped with for the screw thread that engages of conveying wirerope external screw thread.Form the close of more braided wires 1820 of proximal end face 181
End is all fixed in the gap between metal outer pipe 1421 and metal inner pipe 1422.Proximal end face 181 is in its natural state
Planar, i.e., the tapered center 1811 in section shown in Fig. 2 disappears, and the center of proximal end face 181 is not formed shown in Fig. 2
Cone boss.Proximal fasteners 142 protrude from proximal end face 181, not by 181 anti-package of proximal end face, but are located at proximal end face
181 proximal lateral.
Referring to Fig. 6 and Fig. 7, the split type occluder for left auricle 190 that the utility model second embodiment provides has and figure
Plugging device same structure shown in 2-3, choked flow film 310 are also planar sheet, the difference is that, the left heart of the present embodiment
In ear plugging device 190, one end of flexible connecting member 500 is limited in the central area of choked flow film 310, and the other end is limited in proximal end face
More than 193 braided wires being located near proximal fasteners 152, and it is not limited in proximal fasteners 152.Flexible connecting member 500
It is a suture to the four bursts of suturees formed after the different location for the central area for wearing four choked flow films 310, institute
It is symmetrical about the geometric center of choked flow film 310 to state the four points of connection that four bursts of suturees and choked flow film 310 are crossed to form, and
Close to the geometric center.Medical sutures line length commonly used in the art can not be adjusted because being elongated, and block the nature of disk in proximal end
Under state, flexible connecting member 500 is not straightened as shown in Figure 6, but soft shape, Fig. 6 be only illustrate flexible connecting member 500 with
The connection relationship and relative positional relationship of choked flow film 310 and proximal end face 193.Flexible connecting member 500, which can also be other, has life
The wire body of object compatibility.
Proximal fasteners 142 are limited in compared to the proximal end by flexible connecting member 400 in a upper embodiment, even by flexibility
The technique that fitting 500 is limited in the braided wires of proximal end face 193 is simpler.Equally, proximal fasteners 152 are held and elongate proximal end envelope
Stifled disk 195, the central area of choked flow film 310 is by the periphery and closure under the traction of flexible connecting member 500, positioned at choked flow film 310
The same side of the line 194 of disk 195, as proximal fasteners 152 move, periphery is limited in flange, thus 310 quilt of choked flow film
Pull into tent like as shown in FIG. 6.It is understood that when proximal end blocks disk 195 and is pulled to limiting length every time, choked flow film
310 can all substantially form cone under the extruding of the braided wires of proximal end face 193, and be packed together axially, choked flow film 310
Proximal end block dish axle to accumulation length increase, radial ulking thickness reduces, and proximally the direction of fastener 152 is directed toward
The direction of 194 place plane of choked flow film line, choked flow film 310 is incremented by the ulking thickness that proximal end blocks disk radial direction, so that proximal end
All braided wires in surface 193 and choked flow film 310 constitute chock shape as shown in Figure 5 b.Similarly, it is nature exhibition that proximal end, which blocks disk,
When open state, flexible connecting member 500 proximal end block disk fixed point and flexible connecting member 500 choked flow film 310 tie point
The distance between be d1；Proximal end blocks disk when being by limiting condition along axial elongation, and flexible connecting member 500 blocks disk in proximal end
Fixed point and flexible connecting member 500 choked flow film 310 tie point proximal end block dish axle to projector distance be d2；It is flexible
Connector 500 proximal end block disk fixed point proximal end block dish axle to projection, with choked flow film 310 proximal end block dish axle
To the distance between the center of projection be d3；Wherein, d2 is greater than or equal to d1, and d2 is less than d3, please refers to Fig. 5 c, herein not
Another attached drawing signal again.
Claims (9)
1. a kind of split type occluder for left auricle blocks disk including proximal end, blocks the choked flow film in disk set on the proximal end, and with
The proximal end blocks the distal end fixation member that the distal end of disk is connected, and the distal end fixation member is located at the proximal end and blocks the remote of disk
End side, which is characterized in that more braided wires or the more metallic rods for forming the distal end fixation member are solid in the distal end respectively
Determine proximally and distally being concentrated in together for component, the split type occluder for left auricle further includes flexible connecting member, described soft
Property connector one end be connected with the choked flow film, the other end is limited in the proximal end skeleton or distal end skeleton that the proximal end blocks disk.
2. split type occluder for left auricle as described in claim 1, which is characterized in that the proximal end blocks disk as nature expansion
When state, the flexible connecting member the proximal end block disk fixed point and the flexible connecting member the choked flow film company
Contact, proximal end block dish axle to projection between distance be d1；It is by the limit along axial elongation that the proximal end, which blocks disk,
When state, the flexible connecting member the proximal end block the fixed point of disk proximal end block dish axle to projection, and it is described soft
Property connector the choked flow film tie point proximal end block dish axle to projection between distance be d2；The flexible connection
Part the proximal end block disk fixed point proximal end block dish axle to projection, with the choked flow film proximal end block dish axle to
The distance between the center of projection be d3；Wherein, d2 is greater than or equal to d1, and d2 is less than d3.
3. split type occluder for left auricle as claimed in claim 1 or 2, which is characterized in that the proximal end skeleton includes proximal end
Fastener and constitute proximal end face more braided wires, the distal end skeleton include distal fastener and constitute distal surface it is more
Root braided wires, it further includes the flange being connected with the proximal end face and distal surface that the proximal end, which blocks disk,；The choked flow film
Periphery is limited in the flange；Or the periphery of the choked flow film is limited in the braiding close to the flange of the proximal end face
Silk；Or the periphery of the choked flow film is limited in the braided wires close to the flange of the distal surface.
4. split type occluder for left auricle as claimed in claim 3, which is characterized in that the choked flow film is blocked in the proximal end
It is planar sheet or non-planar under the natural unfolded state of disk.
5. split type occluder for left auricle as claimed in claim 3, which is characterized in that the flexible connecting member is in the choked flow
The tie point of film is located at the center of the choked flow film；Or the tie point is close to the center of the choked flow film.
6. split type occluder for left auricle as claimed in claim 3, which is characterized in that the flexible connecting member is single cord,
It or is single line at least twice to wearing at least two strands formed after the choked flow film.
7. split type occluder for left auricle as claimed in claim 3, which is characterized in that the other end of the flexible connecting member limits
Positioned at the braided wires close to the proximal fasteners of the proximal end face；Or, the other end of the flexible connecting member is limited in
The braided wires close to the distal fastener of the distal surface；Or, the other end of the flexible connecting member be limited in it is described
Proximal fasteners；Or, the other end of the flexible connecting member is limited in the distal fastener.
8. split type occluder for left auricle as claimed in claim 3, which is characterized in that the center of the proximal end face is opposite
It is protruded towards the direction close to the distal end fixation member its marginal zone；Alternatively, the proximal end face is plane.
9. split type occluder for left auricle as described in claim 1, which is characterized in that the proximal end blocks disk for fitting in
The parameatal left atrial wall of left auricle of heart cavity and the opening for cooperating and blocking left auricle of heart cavity with the choked flow film, it is described remote
Proximal end closure disk is positioned at around the opening of left auricle of heart cavity by end fixation member for being fixed in left auricle of heart cavity
Left atrial wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017103454828 | 2017-05-08 | ||
| CN201710345482 | 2017-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209437310U true CN209437310U (en) | 2019-09-27 |
Family
ID=68007482
Family Applications (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820407783.9U Active CN209474706U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820405970.3U Active CN209437311U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820406075.3U Active CN209474705U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820407782.4U Active CN209826841U (en) | 2017-05-08 | 2018-03-23 | Split type left auricle plugging device |
| CN201820405902.7U Active CN209464032U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820407829.7U Active CN209437312U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820405979.4U Active CN209464033U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820405943.6U Active CN209437310U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
Family Applications Before (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820407783.9U Active CN209474706U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820405970.3U Active CN209437311U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820406075.3U Active CN209474705U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820407782.4U Active CN209826841U (en) | 2017-05-08 | 2018-03-23 | Split type left auricle plugging device |
| CN201820405902.7U Active CN209464032U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820407829.7U Active CN209437312U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
| CN201820405979.4U Active CN209464033U (en) | 2017-05-08 | 2018-03-23 | Split type occluder for left auricle |
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| Country | Link |
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| CN (8) | CN209474706U (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113116406B (en) * | 2019-12-30 | 2022-11-18 | 先健科技(深圳)有限公司 | Plugging device |
| CN113116410B (en) * | 2019-12-30 | 2022-12-02 | 先健科技(深圳)有限公司 | Sealing disc and plugging device |
| CN113116405B (en) * | 2019-12-30 | 2022-07-05 | 先健科技(深圳)有限公司 | Plugging device |
| CA3186828A1 (en) * | 2020-08-12 | 2022-02-17 | Anning Li | Plugging device |
| CN114617603B (en) * | 2020-12-10 | 2024-04-02 | 先健科技(深圳)有限公司 | Plugging device |
| WO2024046392A1 (en) * | 2022-08-30 | 2024-03-07 | 先健科技(深圳)有限公司 | Occlusion apparatus |
-
2018
- 2018-03-23 CN CN201820407783.9U patent/CN209474706U/en active Active
- 2018-03-23 CN CN201820405970.3U patent/CN209437311U/en active Active
- 2018-03-23 CN CN201820406075.3U patent/CN209474705U/en active Active
- 2018-03-23 CN CN201820407782.4U patent/CN209826841U/en active Active
- 2018-03-23 CN CN201820405902.7U patent/CN209464032U/en active Active
- 2018-03-23 CN CN201820407829.7U patent/CN209437312U/en active Active
- 2018-03-23 CN CN201820405979.4U patent/CN209464033U/en active Active
- 2018-03-23 CN CN201820405943.6U patent/CN209437310U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN209826841U (en) | 2019-12-24 |
| CN209464032U (en) | 2019-10-08 |
| CN209437312U (en) | 2019-09-27 |
| CN209474706U (en) | 2019-10-11 |
| CN209464033U (en) | 2019-10-08 |
| CN209474705U (en) | 2019-10-11 |
| CN209437311U (en) | 2019-09-27 |
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