CN204181743U

CN204181743U - Stopper

Info

Publication number: CN204181743U
Application number: CN201420516361.7U
Authority: CN
Inventors: 刘香东; 张�杰; 赵江浪
Original assignee: Lifetech Scientific Shenzhen Co Ltd
Current assignee: Lifetech Scientific Shenzhen Co Ltd
Priority date: 2014-09-09
Filing date: 2014-09-09
Publication date: 2015-03-04
Anticipated expiration: 2024-09-09

Abstract

Stopper of the present utility model comprises first disk-like structure (201) with grid and the waist (3) be connected with described first disk-like structure (201), and described first disk-like structure (201) comprises first center (202) corresponding with described waist (3) cross section and the first marginal zone (203) around described first center (202); Wear in the grid of described first center (202) and be woven with litzendraht wire (4).Stopper of the present utility model due to the netting twine density at least in the first center larger, can while guarantee sealing characteristics, reduce the volume after stopper contraction, the carrier pipe sheath less by internal diameter is carried, and can adapt to the patient that blood vessel is thinner.

Description

Stopper

Technical field

This utility model relates to a kind of medical apparatus and instruments, can be used in shutoff heart or the interventional therapy device of endovascular defect more specifically to a kind of.

Background technology

Along with the development of intervention material apparatus and Interventional cardiology, the congenital heart diseases such as transcatheter occlusion device minimally-invasive treatment atrial septal defect, ventricular septal defect, patent ductus arteriosus and patent foramen ovale become important method.Same intervening mode carries out Endovascular shutoff, is also well accepted treatment means.

Existing stopper divides by structure, mainly contains following two classes.As shown in Figure 1, this stopper comprises bolt head 310, end socket 308, left dish 302, right dish 304 and waist 306.Wherein, left dish 302, right dish 304 and waist 306 are woven into network structure by many grid lines.Two dishes of stopper and waist are provided with polyester fiber bluff body to increase ductus arteriosus occluder effect.As shown in Figure 2, the another kind of stopper of prior art comprises the metal framework 49 formed by the cutting of NiTi pipe, the choked flow film 50, stomidium 45 and 46, the lock ring 47 that cover also connection metal framework 49, shutoff tension force to defect when the waist 51 of metal framework 49 provides use, left and right two dish covers defect at defect two ends respectively, finally can complete shutoff by blocking blood flow.

To sum up, the choked flow film (body) of existing stopper is arranged in dish or is similar in the structure of dish, bluff body or choked flow film materials more.When stopper is transferred to heart defect position by employing sheath pipe, choked flow film (body) can flock together, and accordingly, the sheath pipe needing doctor to select caliber larger is to carry stopper.Patient's range shorter of this shutoff apparatus correspondence treatment can be caused like this, such as child due to blood vessel access less, just can not use the stopper of large gauge.The i.e. sheath pipe of enable inadequate selection of small caliber, because choked flow film (body) can increase the resistance promoting stopper in delivery sheath, cause doctor to have to use comparatively high thrust, easily occur that stopper release is too fast, operating difficulty and the poor risk of therapeutic effect can be increased the weight of undoubtedly.Therefore, be necessary to provide a kind of stopper that can be applicable to child.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of stopper, and large due to volume with the stopper solving prior art, in carrier pipe sheath resistance is large, the defects such as the difficulty that the blood vessel that more difficult adaptation is less and easily increasing the weight of is performed the operation and risk.

This utility model solves the technical scheme that its technical problem adopts:

A kind of stopper, comprise first disk-like structure with grid and the waist be connected with described first disk-like structure, described first disk-like structure comprises first center corresponding with described waist cross section and the first marginal zone around described first center; Wear in the described grid of described first center and be woven with litzendraht wire.

In this utility model one embodiment, also wear in all or part of described grid of described first marginal zone and be woven with described litzendraht wire.

In this utility model one embodiment, described stopper also comprises the second disk-like structure be connected with described waist, and described first disk-like structure is arranged at the relative both sides of described waist respectively with described second disk-like structure.

In this utility model one embodiment, described second disk-like structure comprises second center corresponding with described waist cross section and the second marginal zone around described second center; Wear in the grid of described second center and be woven with described litzendraht wire.

In this utility model one embodiment, described stopper comprises two groups around to contrary grid lines, described litzendraht wire in described grid around to grid lines described at least one group around to almost parallel.

In this utility model one embodiment, described stopper comprises two groups around to contrary grid lines, and described two networking rulings intersect to form multiple cross point, and described litzendraht wire series connection is positioned at multiple cross points of same circumference.

In this utility model one embodiment, in described waist or side face wear and be woven with described litzendraht wire.

In this utility model one embodiment, in described waist, be provided with choked flow film.

In this utility model one embodiment, described waist is in the webmaster shape comprising waveform or saw tooth shaped crimp.

In this utility model one embodiment, described litzendraht wire is in its natural state in puffy, and under force-extension, length increases and diameter reduction, and returns to naturalness after cancelling external force.

In this utility model one embodiment, described litzendraht wire roughly mates with described mesh shape and size in its natural state.

This utility model also provides a kind of stopper, comprises supporting network, the waist that described supporting network comprises the first disk-like structure and is connected with described first disk-like structure, is provided with choked flow film, wears and be woven with litzendraht wire in the grid of described supporting network in described waist.

In this utility model one embodiment, described supporting network also comprises the second disk-like structure be connected with described waist, and described first disk-like structure and described second disk-like structure are arranged at the both sides of described waist respectively.

In this utility model one embodiment, described litzendraht wire size and shape in its natural state roughly mates with described grid.

In this utility model one embodiment, described waist surface is in the webmaster shape comprising waveform or saw tooth shaped crimp.

Compared with prior art, stopper of the present utility model is by least wearing the litzendraht wire knitted and can stop that blood flow passes through in the first center of the first disk-like structure of stopper, reduce the size of mesh opening of the first center, improve the count of this interior lines, region body, or wear at other positions of stopper while choked flow film is set in waist and knit litzendraht wire, decrease the use of choked flow film, small volume after stopper of the present utility model is compressed, can adapt to the low age patient compared with thin vessels more.Further, reduce the resistance of stopper in carrier pipe sheath, decrease operating difficulty, reduce operation risk.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:

Fig. 1 is the structural representation of existing a kind of stopper;

Fig. 2 is the structural representation of existing another kind of stopper;

Fig. 3-5,7-12 is the schematic diagram of the stopper that each embodiment of the present utility model provides;

Fig. 6 is the schematic diagram of webmaster by axial phase back strength grid lines variable angle of stopper.

Detailed description of the invention

In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe detailed description of the invention of the present utility model in detail.

At congenital cardiac intervention medical field, definition is near-end apart from one end that operator is relatively near, and one end relatively far away apart from operator is far-end.

Divide by shape, stopper generally includes approximate " work " font and approximate " T " font two kinds of structures.Described " work " font can be understood as and comprises double plate and a waist and the structure large in waist shallow bid, accordingly, and structure shown in Fig. 2 should belong to " work " font structure.By the heart defect position classification be suitable for, stopper mainly comprises ventricular septal defect (VSD) stopper, atrial septal defect (ASD) stopper, patent ductus arteriosus (PDA) stopper, and patent foramen ovale (PFO) stopper.Wherein, VSD stopper, ASD stopper and PFO stopper have approximate " work " font structure of double plate and a waist, and PDA stopper has approximate " T " font structure of single-deck and a waist.

Below just there is the stopper of single-deck and a waist respectively, and the stopper with double plate and a waist is example, the stopper that this utility model provides is described.

Please also refer to Fig. 3-4, the stopper that this utility model one embodiment provides, comprises the supporting network 1 with grid 100.The waist 3 that this supporting network 1 comprises the first disk-like structure 201 and is connected with this first disk-like structure 201.First disk-like structure 201 comprises the first card 204 and the second card 205 of being oppositely arranged with the first card 204 that are arranged at and arrange away from waist 3 side.This first disk-like structure 201 comprises first center 202 of mating with waist 3 shape of cross section and size and the first marginal zone 203 around this first center 202.In the present embodiment, the first center 202 and the first marginal zone 203 are all arranged in the first card 204, and the first center 202 and the first marginal zone 203 are separated by by the first edge line 209 (in Fig. 4 dotted line).Wear in the grid 100 of this first center 202 and be woven with many litzendraht wires 4.Alternatively, other regions except the first center 202 of the first disk-like structure 201 can be made a general reference in the first marginal zone 203.That is, in some embodiments of this utility model, the first marginal zone comprises the region of the first card 204 except the first center 202, and the second card 205 is positioned at the region outside waist 3 cross section.

Litzendraht wire 4 is worn along the weaving direction of the grid lines of supporting network 1 and is knitted, and wears and be woven in the first center 202.

Concrete, as shown in Figure 4, supporting network 1 weaves by many first grid lines 5 woven along phase counter-clockwise direction and many second grid lines 6 structure being formed and have grid, preferred employing super-elastic shape memory alloy material is made, as nickel-titanium alloy material etc., can ensure that stopper automatically reverts to original shape after the delivery sheath less than diameter itself release, block heart septal defect or artery-clogging, and keep enough radial support power, avoid stopper to be shifted.Supporting network 1 also can have the material of better biocompatibility by with human body, and such as degradable high polymer material is made.

Litzendraht wire 4 comprises the first litzendraht wire 7 (bold portion of overstriking in Fig. 4).First litzendraht wire 7 comprises and to be extended to the first edge line 209 by the card center of the first card 204, and end to end many first sections 71, every root first sections 71 is placed between two adjacent first grid lines 5, roughly parallel with every root first grid lines 5, and every root first sections 71 and the second grid lines 6 top-bottom cross are worn and are knitted.Namely the first sections 71 coordinates the grid 100 formed to be divided into less grid by original for supporting network 1 by the first grid lines 5 and the second grid lines 6.

In another embodiment of this utility model, litzendraht wire 4 comprises the second litzendraht wire 8 (dotted portion of overstriking in Fig. 4), and the second litzendraht wire 8 comprises and to be extended to edge line by the card center of the first card 204, and end to end many second sections 81, every root second sections 81 to be placed between two second grid lines 6 being disposed adjacent and to wear with the first grid lines 5 top-bottom cross and knits.Namely the second sections 81 coordinates the grid 100 formed to be divided into less grid by original for supporting network 1 by the first grid lines 5 and the second grid lines 6, adds the density of the line body in unit are.

Be understandable that, the first center 202 can wear the first litzendraht wire 7 and the second litzendraht wire 8 simultaneously.Position relationship structure when every root first litzendraht wire 7 and the second litzendraht wire 8 and the position relationship between grid lines are worn respectively and separately and knitted the first litzendraht wire or the second litzendraht wire and between grid lines is identical, just no longer describes in detail herein.

In this utility model one embodiment, as shown in Figure 5, the first grid lines 5 and the second grid lines 6 interlacing form multiple cross point 56.Litzendraht wire 4 comprises many 3rd litzendraht wires 9,3rd litzendraht wire 9 is worn to be woven in and is formed circumferentially to the first the multiple of edge line 209 scattering by cross point 56 by the card center of the first card 204 in the first center 202, and each is circumferentially worn and knits the 3rd litzendraht wire 9 and every root the 3rd litzendraht wire 9 joins end to end.Namely the 3rd litzendraht wire 9 is connected and is multiplely positioned at same cross point 56 circumferentially.Preferably, the multiple circumference be arranged in the first card 204 are concentric circular, and the spacing between each concentric circular sets as required.Position relationship under how being chosen as one on the other between 3rd litzendraht wire 9 and same multiple cross points 56 circumferentially or going up more.For the 3rd litzendraht wire 9 position relationship one on the other, when the 3rd litzendraht wire 9 is placed on a cross point 56, the 3rd litzendraht wire 9 is placed under the adjacent cross point 56 of same circumference.Namely to wear the mode of knitting be the 3rd litzendraht wire 9 by under the adjacent cross point 56 wearing same circumference on a cross point 56, or by the adjacent cross point 56 wearing same circumference under a cross point 56, and wear successively and knit until end to end.That is, the 3rd litzendraht wire 9 is fixed on supporting network 1 by cross point 56.

Litzendraht wire 4 can have comparatively bigger serface.Namely be puffy under litzendraht wire 4 naturalness, diameter is comparatively large, and under force-extension, length increases and diameter reduction, and returns to naturalness after cancelling external force.That is, stopper of the present utility model is after naturalness and operation release, litzendraht wire 4 can reduce grid 100 size of the first disk-like structure 201, coordinates with supporting network 1 effect playing choked flow, makes the quick thrombosis of stopper energy after implant into body thus and blocking blood flow.Preferably, every root litzendraht wire 4 roughly mates with the shape of grid 100 and size in the shape of fluffy state and size, and thus after operation release, litzendraht wire 4 can fill grid completely.The material of litzendraht wire 4 can select nylon or polyester, preferably selects bioabsorbable material as the material of litzendraht wire 4, makes litzendraht wire 4 have good biocompatibility and absorbability, facilitate the endothelialization of defect.

The stopper of above-described embodiment adopts extra litzendraht wire 4 substantially to wear the total-grid 100 being woven in the first center 202, add the count of the first center 202, can reduce or stop passing through of blood flow, and be filled with the gap of grid lines due to litzendraht wire 4, therefore there is better plugging effect.

Further, the stopper of above embodiment compresses by sheath pipe after entering sheath, litzendraht wire 4 can be subject to axial tension effect, the external diameter of litzendraht wire 4 is caused to reduce, and litzendraht wire 4 is consistent with the first grid lines 5 and the second grid lines 6 bearing of trend or be wound around the first grid lines 5 and the second grid lines 6, significantly can reduce the resistance of stopper in sheath pipe.Therefore hinge structure, the internal diameter of the carrier pipe sheath required for the stopper of same specification is less, is convenient to input to human body, and can be suitable for the thinner patient of blood vessel.

Moreover, wear due to litzendraht wire 4 and be woven among supporting network 1, enhance the support force of supporting network 1 to a certain extent, also do not need the grid lines quantity increasing formation supporting network 1 to improve shut-off capacity simultaneously.The grid lines that this utility model supporting network 1 adopts is less, can be such as 72 grid lines, therefore whole stopper is more soft, makes it more easily enter and is pushed out pipe sheath, facilitating operative process.

Optionally, as shown in Figure 3, described waist 3 can be sewed with a choked flow film 2 to strengthen plugging effect.Because the cross-sectional area of waist 3 is less than the cross-sectional area of the first disk-like structure 201, and in natural diastole state with under force and deformation state, the change of the volume of waist 3 is less relative to the change of the first disk-like structure 201, therefore hinge structure, only waist 3 arranges the volume that choked flow film 21 will reduce when stopper compresses, so both can strengthen plugging effect, stopper also can be made to adapt to thinner blood vessel.

Equally as shown in Figure 3, further alternative, waist 3 in tubular construction, and is provided with some waveforms or saw tooth shaped crimp 11 along waist 3 axis direction.Concrete, each fold 11 is all located on waist 3 circumference, and multiple fold 11 is arranged in order along the axis direction of waist 3; These folds 11 can be arranged in the whole length direction of waist 3, also can be parts for waist 3.

Because waist 3 has waveform or saw tooth shaped crimp 11, elasticity is comparatively large, therefore, in its natural state, have the stopper that identical waist is long compared to existing technology, the length had after waist 3 elongation of waveform or saw tooth shaped crimp 11 is longer, and flexible angle is larger.Therefore the stopper of the present embodiment shutoff can have the long defect of difformity and different waist, and subject range is wider.

In addition, when stopper waist 3 is elongated, fold 11 can effectively compensate waist 3 reduced in radial directions, makes waist 3 its diameter in limited range of stretch that large reducing can not occur.Specifically, as shown in Figure 6, for the stopper of existing waist 3 corrugationless, when there is no the waist 3 of fold 11 along the stretching of opposing direction, axial angle α between every two grid lines can freely reduce, and wherein arrow represents its waist 3 direction of extension, so that whole waist 3 diameter also can reduce in circumferencial direction symmetry, the defect shape of different cross section can not be adapted to, there will be the situation that waist 3 support force is more weak.And because stopper waist 3 has waveform or saw tooth shaped crimp 11 in the present embodiment, freely reducing of the axial angle α between each grid lines can be retrained, when stretching and bearing radial pressure, the girth of this waist 3 keeps substantially constant, at waist 3 in non-stress direction, size also expands to some extent, then can adapt to difform defect.

Meanwhile, due to the existence of fold 11, add the wall thickness 30 between the outer wall of supporting network 1 waist 3 and inwall, its support force exponentially property significantly rises, therefore stopper waist 3 of the present utility model can provide larger support force.

See Fig. 7, the stopper that the another embodiment of this utility model provides has the structure similar with stopper shown in Fig. 3-4, difference is, litzendraht wire 4 is arranged at whole first card 204 (namely litzendraht wire 4 is not only arranged at the first center 202 but also is arranged at the first marginal zone 203).Concrete, as shown in Figure 7, when employing first litzendraht wire 7, second litzendraht wire 8 or the first litzendraht wire 7 and the second litzendraht wire 8 in conjunction with time, each root first sections 71 or the second sections 81 extend to card edge by the card center of the first card 204.

As shown in Figure 8, the stopper that this utility model one embodiment provides is compared with stopper shown in Fig. 5, have similar structures, difference is, many 3rd litzendraht wires 9 wear to be woven in by circumferentially multiple to card edge scatter of the card center of the first card 204.

Shown in the position relationship of the first litzendraht wire 7, second litzendraht wire 8 and the 3rd litzendraht wire 9 and each grid lines and Fig. 5, stopper is identical, repeats no more herein.

See Fig. 9, the stopper that this utility model one embodiment provides has the structure similar with stopper shown in Fig. 3, and difference is, the stopper of the present embodiment is also worn at waist 3 and is woven with litzendraht wire 4.Wherein, wearing the litzendraht wire 4 being woven in waist 3 is the 4th litzendraht wire 10.

Concrete, as shown in Figure 9, the 4th litzendraht wire 10 wears the circumferentially multiple of the axially-aligned be successively woven on waist 3, and circumferentially wearing on each waist 3 knits the 4th litzendraht wire 10 and every root the 4th litzendraht wire 10 joins end to end; Every root the 4th litzendraht wire 10 is identical with the position relationship of grid lines with the 3rd litzendraht wire 9 with the position relationship of grid lines, just repeats no more herein.

Or as shown in Figure 10, the 4th litzendraht wire 10 comprises many axis and wears the 4th sections 101 be woven on waist 3, and many 4th sections 101 join end to end, or are separated from each other between many fourth stages.

Same, due to the first grid lines 5 and the second grid lines 6 interlacing, be formed with some cross points 56 on the surface at waist 3, namely waist 3 on the surface one with the direction of axis being parallel on be provided with some cross points 56.Position relationship under how can be one on the other between 4th sections 101 and this some cross point 56 or go up more.For the 4th sections 101 position relationship one on the other, when the 4th sections 101 is arranged under a cross point 56, the 4th sections 101 is arranged on the adjacent cross point 56 that in axial direction arranges.

Be separated from each other between the 4th sections 101, and the grid lines that often two ends of root the 4th sections 101 are corresponding with it is respectively fixedly connected with.

In addition, in order to adapt to the distortion of the various forms of stopper waist 3, the length of wearing every root the 4th sections 101 being woven in waist 3 need be more than or equal to length when waist 3 is stretched to greatest length.

Be understandable that, other forms of change can be done in the position of litzendraht wire 4 relative support net 1.

Such as, litzendraht wire 4 is not only arranged at the first center 202, but also is arranged at the first marginal zone 203, i.e. the second card 205.Concrete, when employing first litzendraht wire 7, second litzendraht wire 8 or the first litzendraht wire and 7 second litzendraht wires 8 in conjunction with time, each root first sections 71 or the second sections 81 extend to the card edge of the second card 205 by the second card 205 with waist 3 junction; When employing the 3rd litzendraht wire 9, many 3rd litzendraht wires 9 be wear be woven in the second card 205 by the junction of the second card 205 and waist 3 to card edge scatter circumferentially multiple of the second card 205.

Or, such as, whole first card 204 and the second card 205 are worn and are woven with litzendraht wire 4.

Or, whole first card 204 and waist 3 are worn and are woven with litzendraht wire 4.

Or, the first center 202, second card 205 and waist 3 are worn and knit litzendraht wire 4.

Or, the first card 204, second card 205 and waist 3 are worn and knit litzendraht wire 4.

Or, the choked flow film 21 being parallel to waist 3 cross section can be made in waist 3, wear at other positions any of supporting network 1 and knit litzendraht wire 4.As long as can reach while making stopper have smaller size smaller when shrinking and can meet plugging effect again.

As shown in figure 11, the stopper that this utility model one embodiment provides comprises supporting network 1, this supporting network 1 not only comprises the first disk-like structure 201, also comprises the both sides that the second disk-like structure 206, first disk-like structure 201 and the second disk-like structure 206 lay respectively at waist 3.Second disk-like structure 206 comprises along the 3rd card 207 arranged away from waist 3 side and the 4th card 208 be oppositely arranged with the 3rd card 207.3rd card 207 comprises second center 209 corresponding with waist 3 cross section and the second marginal zone 200 around this second center 209.Two disk-like structures are respectively used to the both sides covering defect, and waist 3 is for shutoff defect tract.Shown in the present embodiment and Fig. 3, stopper has similar structures, unlike, also comprise the second disk-like structure 206 in this embodiment, and wear in the second center 209 of the second disk-like structure 206 and knit litzendraht wire 4.On waist 3, be provided with choked flow film 21. simultaneously

Be understandable that, other forms of change can be done in the position of litzendraht wire 4 relative support net 1.Such as, the first card 204 (first center 202 and the first marginal zone 203) and the 3rd card 207 (second center 209 and the second marginal zone 200) are all worn be woven with litzendraht wire 4.Or, all wear in the first center 202, second center 209, second card 205 and the 4th card 208 and knit litzendraht wire 4.

Or time, the first center 209, center 202, second and waist 3 are all worn and knits litzendraht wire 4.

Or, as shown in figure 12, first card 204 (comprising the first center 202 and the first marginal zone 203) and the 3rd card 207 (comprising the second center 209 and the second marginal zone 200) are all worn and knits litzendraht wire 4, second card 205 and the 4th card 208 are also worn and knits litzendraht wire 4, and waist 3 is provided with choked flow film 21.

Or, whole first card 204 (comprising the first center 202 and the first marginal zone 203), whole 3rd card 207 and waist 3 are worn and knits litzendraht wire 4.

Or, the first center 209, second, center 202, second card 205, the 4th card 208 and waist 3 are all worn and knits litzendraht wire 4.

Or, the whole surface of stopper is all worn and knits litzendraht wire 4.

For the stopper with double plate one waist, foregoing merely illustrates litzendraht wire 4 symmetrical configuration situation on the first disk-like structure 201 and the second disk-like structure 206.But, as long as at least one meeting in the first center 202 and the second center 209 is worn and is knitted litzendraht wire 4, can wear at other positions any of stopper and knit litzendraht wire 4 to combine with at least one center, if can reach make stopper shrink time there is smaller size smaller while can meet plugging effect again.

In addition, having in the stopper of double plate one waist above-mentioned, also can be make choked flow film 21 on a cross section of waist 3, wears knit litzendraht wire 4 at other positions any of supporting network 1.Equally, if can reach above-mentioned make stopper have smaller size smaller when shrinking while can meet plugging effect again.

To sum up: by implementing stopper of the present utility model, can reduce or avoid the use of bluff body, reduce the resistance of stopper in carrier pipe sheath, the pipe sheath that internal diameter is less can be adapted to, decrease operating difficulty, reduce operation risk, more can adapt to the low age patient compared with thin vessels, make the stopper scope of application of same specification wider.

By reference to the accompanying drawings embodiment of the present utility model is described above; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that this utility model aim and claim protects, also can make a lot of form, these all belong within protection of the present utility model.

Claims

1. a stopper, it is characterized in that, comprise first disk-like structure (201) with grid (100) and the waist (3) be connected with described first disk-like structure (201), described first disk-like structure (201) comprises first center (202) corresponding with described waist (3) cross section and the first marginal zone (203) around described first center (202); Wear in the described grid (100) of described first center (202) and be woven with litzendraht wire (4).

2. stopper according to claim 1, is characterized in that, also wears and be woven with described litzendraht wire (4) in all or part of described grid (100) of described first marginal zone (203).

3. stopper according to claim 1 and 2, it is characterized in that, described stopper also comprises the second disk-like structure (206) be connected with described waist (3), and described first disk-like structure (201) is arranged at the relative both sides of described waist (3) respectively with described second disk-like structure (206).

4. stopper according to claim 3, it is characterized in that, described second disk-like structure (206) comprises second center (209) corresponding with described waist (3) cross section and the second marginal zone (200) around described second center (209); Wear in the grid (100) of described second center (209) and be woven with described litzendraht wire (4).

5. stopper according to claim 4, it is characterized in that, described stopper comprises two groups around to contrary grid lines, described two networking rulings coordinate and form described grid (100), described litzendraht wire (4) in described grid (100) around to grid lines described at least one group around to almost parallel.

6. stopper according to claim 4, it is characterized in that, described stopper comprises two groups around to contrary grid lines, described two networking rulings intersect to form multiple cross point (56), and described litzendraht wire (4) series connection is positioned at multiple cross points (56) of same circumference.

7. the stopper according to any one of claim 1-4, is characterized in that, in described waist (3) or side face wear and be woven with described litzendraht wire (4).

8. stopper according to claim 7, is characterized in that, is provided with choked flow film (21) in described waist (3).

9. stopper according to claim 8, is characterized in that, described waist (3) is in the webmaster shape comprising waveform or saw tooth shaped crimp (11).

10. stopper according to claim 9, is characterized in that, described litzendraht wire (4) is in its natural state in puffy, and under force-extension, length increases and diameter reduction, and returns to naturalness after cancelling external force.

11. stoppers according to claim 10, is characterized in that, shape and the size of described litzendraht wire (4) shape in its natural state and size and described grid (100) are roughly mated.

12. 1 kinds of stoppers, it is characterized in that, comprise supporting network (1), the waist (3) that described supporting network (1) comprises the first disk-like structure (201) and is connected with described first disk-like structure (201), be provided with choked flow film (21) in described waist (3), wear in the grid (100) of described supporting network (1) and be woven with litzendraht wire (4).

13. stoppers according to claim 12, it is characterized in that, described supporting network (1) also comprises the second disk-like structure (206) be connected with described waist (3), and described first disk-like structure (201) and described second disk-like structure (206) are arranged at the both sides of described waist (3) respectively.

14. stoppers according to claim 12 or 13, is characterized in that, described litzendraht wire (4) is in its natural state in puffy, and under force-extension, length increases and diameter reduces, and returns to naturalness after cancelling external force.

15. stoppers according to claim 14, is characterized in that, described litzendraht wire (4) size and shape in its natural state roughly mates with described grid (100).

16. stoppers according to claim 15, is characterized in that, described waist (3) surface is in the webmaster shape comprising waveform or saw tooth shaped crimp (11).