CN205849480U - The heart atrial septal defect plugging device of developed degradable - Google Patents
The heart atrial septal defect plugging device of developed degradable Download PDFInfo
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- CN205849480U CN205849480U CN201620008206.3U CN201620008206U CN205849480U CN 205849480 U CN205849480 U CN 205849480U CN 201620008206 U CN201620008206 U CN 201620008206U CN 205849480 U CN205849480 U CN 205849480U
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Abstract
The utility model discloses the heart atrial septal defect plugging device of a kind of developed degradable, it includes the first plate-like net, tubular reticulum and the second plate-like net being sequentially connected with, first plate-like net and the second plate-like net are double-deck guard, the two ends of tubular reticulum are connected to interior wire side and the outer wire side of the second plate-like net of the first plate-like net, and the first plate-like net, tubular reticulum and the second plate-like net are formed in one；The interior wire side center of the second plate-like net is provided with the connector for being closed up by wire side；The outer wire side center of the first plate-like net is provided with the union joint for being closed up by wire side；The material of the first plate-like net, tubular reticulum, the second plate-like net and connector is the degradation material that can develop.This utility model not only makes the degradable silk developed of composition plate-like net to be securely attached together, and makes connector can be securely attached together with the degradable silk developed of composition plate-like net, it is not easy to come off.
Description
Technical field
This utility model relates to the heart atrial septal defect plugging device of a kind of developed degradable.
Background technology
Atrial septal defect is the one in common congenital heart disease.Human heart is made up of, i.e. four chambers
Left atrium, left ventricle, right atrium and right ventricle, between left atrium the most above and two chambers of right atrium, originally should
This has a complete interatrial septum, if there being opening the most referred to as atrial septal defect on heart interatrial septum.Atrial septal defect master
In the growth and development process of fetus to be formed at, grown owing to be have impact on heart by certain factor, thus form interatrial septum and lack
Damage.For the patient of atrial septal defect, blood would generally be flow to right atrium by left atrium through atrial septal defect, makes right atrium
Blood volume increase.The long-term existence of atrial septal defect can cause pulmonary artery pressure to increase, congestive heart failure, the rhythm of the heart lose
Often, the disease such as apoplexy, dizziness, faintness.
Heart atrial septal defect is common congenital heart disease, and traditional therapeutic modality is surgical operation.Surgical operation
Therapeutic Method, patient need to surgically open breast, and the shortcoming of its maximum is: needs extracorporeal circulation in (1) art, and operation may
Complication is caused to cause death；(2) surgery operating wound is big, postoperative leaves cicatrix；(3) surgery cost is expensive.
From the eighties in 20th century along with intubation intervention diagnosis and the development for the treatment of technology and raising, China is gradually introducing Wicresoft
Interventional technique treatment congenital heart disease, is developed rapidly by the method for Minimally Interventional Therapy atrial septal defect, becomes the most very much
Ripe.Comparing traditional surgery, Minimally Interventional Therapy is the treatment of a kind of modern high technology invasive, by femoral venous puncture,
Under the guiding of medical imaging device, by guide wire along femoral vein, postcava until entering right atrium, through atrial septal defect
Enter left atrium.Subsequently delivery conduit is placed in atrial septal defect position along guide wire, finally by atrial septal defect plugging device
In delivery conduit, push to implement at atrial septal defect Occlusion therapy.Such Minimally Interventional Therapy have do not operate on, wound
Little, few intercurrent disease, the advantage such as recovery is fast, effective, indication scope is wide and surgery cost is relatively low.
Though the Therapeutic Method being got involved operation implantation atrial septal defect plugging device by Wicresoft has many of the above relative to tradition
Operating advantage.But, the material master used by the main body rack of the atrial septal defect plugging device of present Clinical practice
Nitinol alloy wire to be, owing to this metalloid material can not be degraded, be chronically implanted can and tissue be inflamed, blood coagulation etc. is anti-
Should, the most a certain degree of damage, therefore there is certain defect, it is possible to there is risk used below in it: (1) NiTi
Alloy is nondegradable metal alloy compositions, although its biocompatibility is proved, but the long term of long-term Permanent implantation
Risk still cannot be perfectly controlled；(2) due to Nitinol Permanent implantation and non-degradable, heart is forever retained to human body
Safety, the impact of heart of fixed-size heart occluder growth promoter continuous on child still lack long-term follows up a case by regular visits to money
Material, it may affect the growing of patient's heart of undeveloped mature；(3) complication such as nickel precipitation, nickel allergy have not yet
Clear and definite scientific appraisal.
On heart occluder surface by complete endothelialization, after heart defect is repaired by body autologous tissue, heart blocks
Device is entirely without the necessity retained in vivo.Therefore, preferable heart occluder should be to repair for heart self to provide one
Temporary bridge, is degraded by body after completing historic mission, makes defect be repaired by autologous tissue completely, thus avoids metal to retain body
The long term complication inside brought and potential safety hazard.
The supporting construction of the degradable stopper introduced in United States Patent (USP) US08480709B2 is formed by pipe cutting, closure
The junction point of two cards of device is similar with dual welding spots, makes two card centers protruding, can increase stopper surface local thrombus
The risk formed, is unfavorable for the endothelialization process on stopper surface, meanwhile, makes the release of stopper during implant surgery
Length is longer, easy impair cardiac tissue, and the stopper compliance and the recovery that are fabricated to by this method are poor, needs
Locking device to be passed through assists it to reply original shape.
Utility model content
The technical problems to be solved in the utility model is to deposit to solve the atrial septal defect plugging device of existing Clinical practice
In the problem of long term risk, and prior art is overcome to there is the compliance of degradable stopper and the defect that recovery is poor,
The heart atrial septal defect plugging device of a kind of developed degradable is provided.
This utility model is to solve above-mentioned technical problem by following technical proposals:
The heart atrial septal defect plugging device of a kind of developed degradable, its feature is, it includes be sequentially connected with
First plate-like net, a tubular reticulum and one second plate-like net, described first plate-like net and described second plate-like net are double-deck guard,
The two ends of described tubular reticulum are connected to interior wire side and the outer wire side of described second plate-like net of described first plate-like net, described
First plate-like net, described tubular reticulum and described second plate-like net are formed in one；The interior wire side center of described second plate-like net
Being provided with the connector for being closed up by wire side, described connector is by the dictyosome hot melt of the interior wire side center of described second plate-like net
Shaping forms, and described connector is provided with female thread in the end relative with the wire side connected；The outer wire side of described first plate-like net
Center is provided with the union joint for being closed up by wire side, and described union joint is by the net of the outer wire side center of described first plate-like net
Body heat is melt into shape and forms；The material of described first plate-like net, tubular reticulum, the second plate-like net and connector is dropping of can developing
Solve material.
It is preferred that described connector is tubulose, the height of described connector is 1.5-2.0mm.So make the second plate-like
Enough intensity is had at the interior wire side closing in of net.If the height of connector is too small, the thread turns within connector is very few, meeting
Cause and be connected insecure with induction system and there is the risk that stopper comes off.Whereas if the height of connector is excessive, can increase
Add the risk that stopper surface local thrombus is formed, the side stopper superficial cell climbing with connector can be caused relatively slow,
Extend the endothelialization process on stopper surface.Meanwhile, the release length making stopper during implant surgery is longer, easily
Impair cardiac tissue.
It is preferred that the external diameter of described connector is 2.5-3.2mm.So make to have at the interior wire side closing in of the second plate-like net
Enough intensity.If additionally, connector outside dimension is too small, being easily caused and be connected with connector during connecting member forming
Degraded silk occur fracture or bonding strength decline.Whereas if connector outside dimension is excessive, stopper can be reduced and be suitable for
The size range of delivery sheath, and it is unfavorable for stopper propelling movement in delivery sheath.
Cave at described tubular reticulum it is preferred that the Intranet of described first plate-like net faces, the Intranet of described second plate-like net
Face and cave at described connector.The wire side of depression is so that stopper can stably and firmly be plugged in heart room when using
At defect.
It is preferred that the external diameter of described first plate-like net is than the big 4-6mm of external diameter of described second plate-like net.First plate-like net position
In heart left atrium, the second plate-like net is positioned at heart right atrium, and heart left atrial pressure is greater than right atrial pressure, make blood by
Left atrium enters right atrium through atrial septal defect, so this structure makes the first plate-like net being positioned at left atrium have bigger
Support force, it is possible to the impact of opposing blood flow, beneficially stopper is firmly clamped at atrial septal defect, it is achieved effectively seal
Stifled.
It is preferred that the external diameter 10-16mm bigger than the external diameter of described tubular reticulum of described first plate-like net.The diameter one of tubular reticulum
As corresponding with the diameter of atrial septal defect, the external diameter of the first plate-like net needs larger than the external diameter of tubular reticulum, this structure
The the first plate-like net being positioned at left atrium is made to have bigger support force, it is possible to the impact of opposing blood flow, beneficially stopper is firm
Be clamped at atrial septal defect, it is achieved effectively block.
It is preferred that a length of 3.5-5.5mm of described tubular reticulum.This length is relative with the thickness of atrial septal defect tissue
Should, in order to make stopper preferably be fixed at defect not damaging tissue, and realize effectively closure.
It is preferred that the material of one first described plate-like net, a tubular reticulum, one second plate-like net and described connector is
The high molecular degradable silk that can develop.The described high molecular degradable silk developed is high by developing material and biodegradable
Molecular material forms by spinning after blended method mix homogeneously again, Biodegradable polymer material and the ratio of developing material
Example scope is 70-98wt%:30-2wt%, and Biodegradable polymer material is polylactic acid, polyglycolic acid, polycaprolactone, gathers
A kind of or at least two in Lanthanum Isopropoxide, poly butyric ester, condensing model, poly phosphate, polyurethane, Merlon
Copolymer, developing material is iohexol, iotalamic acid, amidotrizoic acid, sodium iodide, ioversol, cardiografin, Iopromide, iodine gram
Husky alcohol, barium sulfate, bismuth subcarbonate, iron powder or hydroxyapatite.These materials have good biocompatibility, in human body
Can fully absorb, it is to avoid implant the foreign body long-term impact on human body.This stopper simply provides one for cardiac repair
Temporary bridge, is degraded by body after completing historic mission, makes defect be repaired by autologous tissue completely, thus avoids metal to retain body
The long term complication inside brought and potential safety hazard.
A kind of webmaster weaving method, including in the pinhole that pin inserts mould rod, penetrates the degradable silk that can develop
Sewing needle pin hole, knotting compact siro spinning technology.The starting point degradable silk that can develop closely is tied a knot, and during braiding, uplink is with descending
The intersection point of line aligns with centre mark point, with the trend of specification silk.Woven webmaster carries out thermal finalization together with mould rod.Fixed
After type is good, pull out pin, take off webmaster.This weaving method makes the grid of webmaster more uniform, it is easy to operation, decreases making
Cost.
A kind of manufacture method of connector, making step includes:
Step 1, webmaster is closed up；
Step 2, webmaster is put into mould；
Step 3, finishing dictyosome；
The degradable silk that step 4, heating can be developed；
Step 5, molding connector profile and internal whorl；
Step 6, removal dictyosome；
It is preferred that in step 1, first regulate the closing in end margin length of webmaster, make justified margin, with the degradable that can develop
Silk closes up.
It is preferred that in step 2, the webmaster that will have closed up, through the sleeve pipe in mould.
It is preferred that in step 3, original assembling length is stayed a part for making connector, removes the unnecessary of webmaster
Length.
It is preferred that in step 4, open attemperating unit, adjust temperature, facing to developing at connector above mould
Degradable silk continuous heating, wherein, adjusting temperature is on high molecular polymer fusing point 30 DEG C-90 DEG C, continuous heating time 5-
15 seconds, in heating process, over-heating can cause other parts hot melt together of dictyosome, thus causes dictyosome destructurized,
And greatly reduce the material molecule amount of connector part, material premature breakdown can be caused.Otherwise, heat insufficient, can cause
Degradable silk at connector can not be integrated by fully hot melt, it is impossible to forms complete connector female thread structure, the company of causing
Fitting is inadequate with the bonding strength of induction system.Accordingly, it would be desirable to suitably acid extraction just can complete hot melt.
It is preferred that in step 5, after continuous heating, the degradable silk developed of connector part is fused together, move
Open attemperating unit, the slide block being then shut off in mould, and the thread head of mould is inserted in the slot above mould, keep one section
Time.
It is preferred that in step 6, after cooling, the thread head of mould is rotated removal mould, and slide block is slowly removed,
Dictyosome is removed mould.
The manufacture method of this connector is easily operated, can obtain the connector of dimensionally stable, and decrease stopper
The kind of upper use material, makes the degradable silk of composition plate-like net to be securely attached to together, and makes connector and composition
The degradable silk of plate-like net can be securely attached to together, it is not easy to comes off.
A kind of dictyosome method for shaping, is packed into dictyosome shaper including the dictyosome with connector, and solid with fixture
Fixed, it is carried out together thermal finalization, stereotyped after, dictyosome is removed from the molds.With suture, degradable membrane is packed into dictyosome,
And to carry out closing up at closing in end be a solid union joint.This dictyosome method for shaping is easily operated, the occluder size of making
Stable, this kind of method the stopper made has bigger support force and preferable recovery of shape, meets operation technique
Requirement, makes operation more effective, safer.
Positive progressive effect of the present utility model is:
This utility model stopper is knitted to form by the high molecular degradable silk that can develop, and its biodegradation period is 6
Month to 2 years, can fully absorb in human body, it is to avoid implant the foreign body long-term impact on human body.This high score developed
Sub-degradable silk be by developing material and Biodegradable polymer material by after the method mix homogeneously that is blended again spinning and
Become, make stopper in interventional procedure under x-ray equipment radiography, image definition, it is simple to Wicresoft get involved operation operation, carry
The accuracy of high operation and success rate.This utility model used can developing material be also degradable or human body absorbable
Material, harmless to human non-toxic, there is good biocompatibility.The choked flow film of stopper is biological degradable membrane, and it is biological
Degradation cycle be 6 months to 2 years, complete in human body its treatment mission after degradation in vivo disappear, noresidue foreign body.Second
The dictyosome of the interior wire side center of plate-like net is connector through high-temperature hot fusion welding, specifically, by the second plate-like net
The dictyosome at high temperature hot melt of interior wire side center, and with mould, heat-fused portion dictyosome is shaped into connector, so makes group
The degradable silk developed of discoid net is not easy to scatter, and can be securely attached together；Simultaneously so that connector and composition
The degradable silk developed of plate-like net can be securely attached together, it is not easy to comes off.The wire side being not installed with connector is adopted
The structure closed up with union joint, can increase support force and the recovery of stopper.Additionally, this stopper also has manufacturing cost
Low advantage.
Accompanying drawing explanation
Fig. 1 is the stopper perspective view of this utility model preferred embodiment.
Fig. 2 is the stopper connector schematic diagram of this utility model preferred embodiment.
Fig. 3 is the A direction view in Fig. 1.
Fig. 4 is the union joint schematic diagram of the stopper of this utility model preferred embodiment.
Fig. 5 is the mould bar structure schematic diagram of this utility model preferred embodiment.
Fig. 6 is the braiding threading schematic diagram of the webmaster of this utility model preferred embodiment.
Fig. 7 is that the closing in end of the webmaster of this utility model preferred embodiment launches schematic diagram.
Detailed description of the invention
Name preferred embodiment, and combine accompanying drawing and become apparent from intactly illustrating this utility model.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the heart atrial septal defect plugging device of a kind of developed degradable, it includes depending on
First plate-like net 10 of secondary connection, tubular reticulum 30 and the second plate-like net 20, the first plate-like net 10 and the second plate-like net 20 are double
Layer guard, the two ends of tubular reticulum 30 are connected to interior wire side 11 and the outer wire side of the second plate-like net 20 of the first plate-like net 10
22, the first plate-like net 10, tubular reticulum 30 and the second plate-like net 20 are formed in one；Interior wire side 21 center of the second plate-like net 20
Being provided with the connector 40 closed up by wire side, the interior wire side 21 of the second plate-like net 20 is connected for sweat soldering between connector 40；
Connector 40 by the interior wire side center of the second plate-like net 20 dictyosome hot melt shape form, connector 40 with the wire side connected
Relative end is provided with female thread；Outer wire side 12 center of the first plate-like net 10 is provided with the union joint for being closed up by wire side
13, union joint 13 is shaped by the dictyosome hot melt of outer wire side 12 center of the first plate-like net 10 and forms；First plate-like net 10, tubulose
The material of net the 30, second plate-like net 20 and connector 40 is the degradation material that can develop.
The stopper of the present utility model dictyosome in the interior wire side center of the second plate-like net 20 is through high-temperature hot fusion welding
For connector, specifically, by the dictyosome at high temperature hot melt of the interior wire side center to the second plate-like net 20, and use mould
Heat-fused portion dictyosome is shaped into connector 40, so makes the degradable silk developed of composition plate-like net be not easy to scatter, energy
It is securely attached together；Simultaneously so that connector 40 can be firmly attached with the degradable silk developed of composition plate-like net
Together, it is not easy to come off.
Connector 40 is tubulose, and height is 1.5-2.0mm, and external diameter is 2.5-3.2mm.The interior wire side 11 of the first plate-like net 10
Caving at tubular reticulum 30, the interior wire side 21 of the second plate-like net 20 caves at connector 40.The external diameter ratio of the first plate-like net 10
The big 4-6mm of external diameter of the second plate-like net 20；The external diameter 10-16mm bigger than the external diameter of tubular reticulum 30 of the first plate-like net 10；Tubular reticulum
The a length of 3.5-5.5mm of 30.Connector 40 is tubulose, and connector 40 is provided with interior spiral shell in the end relative with the wire side 21 connected
Stricture of vagina.
The material of the first plate-like net 10, tubular reticulum 30 and the second plate-like net 20 and connector 40 is the macromolecule that can develop
Degradable silk.The described high molecular degradable silk developed is to be passed through altogether by developing material and Biodegradable polymer material
After mixed method mix homogeneously, spinning forms again, and Biodegradable polymer material is 70-with the proportion of developing material
98wt%:30-2wt%, Biodegradable polymer material is polylactic acid, polyglycolic acid, polycaprolactone, gathers dioxocyclohex
The copolymer of a kind of or at least two in ketone, poly butyric ester, condensing model, poly phosphate, polyurethane, Merlon, aobvious
Shadow material is iohexol, iotalamic acid, amidotrizoic acid, sodium iodide, ioversol, cardiografin, Iopromide, iodixanol, sulphuric acid
Barium, bismuth subcarbonate, iron powder or hydroxyapatite.In stopper can filling polylactic acid film thus play stop blood flow effect.
This utility model connector is to be formed by degradable silk hot melt, and needs to meet use condition, not only structure
Excessive can not cause hindering stopper propelling movement in delivery sheath, also to avoid the connector caused not because of bonding strength
Pull.
Table 1, connector size, anti-pulling-out force and propelling movement test table in delivery sheath
Test finds, ensures that in use, connector will not be pulled when anti-pulling-out force reaches 15N.By upper table
It can be seen that the size of connector directly influences whether stopper can normally apply among operation in 1.Connector
Inappropriate size design connector can be caused to be pulled, or cannot be introduced into delivery sheath pushes, these all can
Product is caused to use.
This stopper the first mesh-covered tray is netted of continuous print, uses union joint to close up between its netting twine, and this structure is favourable
Reply and support force in stopper shapes improve.Stopper of the present utility model is in the interior wire side center of the second plate-like net
Dictyosome is connector through high-temperature hot fusion welding, specifically, by existing the dictyosome of the interior wire side center of the second plate-like net
Hot melt under high temperature, and heat-fused portion dictyosome is shaped into connector with mould, so make composition plate-like net develop drop
Solve silk to be not easy to scatter, can be securely attached together；Simultaneously so that connector and the degradable developed forming plate-like net
Silk can be securely attached together, it is not easy to comes off.
The making of this utility model stopper is mainly through webmaster molding, connector making, dictyosome sizing and polylactic acid membrane
Sew several step.
During webmaster braiding, pin is inserted as, in the pinhole 51 of the mould rod 5 of Fig. 5, penetrated by the degradable silk that can develop
Sewing needle pin hole, knotting compact siro spinning technology.Braiding threading rule as shown in Figure 6, including connector manufacturing terminal D, closing in end B
(after molding, becoming union joint 13) and starting point C.Closely tie a knot with the degradable silk that can develop at starting point C, during braiding uplink with
The intersection point of downlink aligns with centre mark point, with the trend of specification silk.It is fixed that woven webmaster carries out heat together with mould rod
Type.After stereotyped, pull out pin, take off webmaster.
Connector making step includes:
1, webmaster is closed up；
2, webmaster is put into mould；
3, finishing dictyosome；
4, the degradable silk that can develop is heated；
5, molding connector profile and internal whorl；
6, removal dictyosome；
Wherein, in step 1, first regulate the closing in end margin length of webmaster, make justified margin, with the degradable silk that can develop
Closing up, concrete closing in mode is as it is shown in fig. 7, including going out pin mark 61 and entry point 62, the order of threading is according in Fig. 7
Go out pin mark 61 and entry point 62 closes up.In step 2, the webmaster that will have closed up, through the sleeve pipe in mould.Step 3
In, original assembling length is stayed a part for making connector, remove the additional length of webmaster.In step 4, open temperature control
Device, adjusts temperature, facing to the degradable silk continuous heating developed at connector above mould.In step 5, continuing
After heating, the degradable silk developed of connector part is fused together, and removes attemperating unit, the cunning being then shut off in mould
Block, and the thread head of mould is inserted in the slot above mould, keep a period of time.In step 6, after cooling, by mould
Thread head rotate removal mould, and slide block is slowly removed, dictyosome is removed mould.
Additionally, in step 4, adjusting temperature is on high molecular polymer fusing point 30 DEG C-90 DEG C, continuous heating time 5-15
Second.Shown in table 2-table 4 specific as follows, in heating process, over-heating can cause other parts hot melt together of dictyosome, thus leads
Cause dictyosome is destructurized, and greatly reduces the material molecule amount of connector part, thus can cause material premature breakdown.Instead
It, heat insufficient, the degradable silk at connector can be caused to be integrated by fully hot melt, it is impossible to form complete company
Fitting female thread structure, causes connector inadequate with the bonding strength of induction system.Accordingly, it would be desirable to suitably heating-up temperature and time
Between just can complete hot melt.
The developed degradable material that table 2,70wt%L-lactide/glycolides (82/18) and 30wt% iodixanol are made
Material hot melt test table
The developed degradable material hot melt test that table 3,85wt% PPDO and 15wt% iohexol are made
Table
| Heat time heating time s | Heating-up temperature DEG C | Connector hot melt situation | Other part holt melt situations | |
| 1 | 2 | 190 | Inabundant hot melt | Non-hot melt |
| 2 | 15 | 120 | Inabundant hot melt | Non-hot melt |
| 3 | 5 | 190 | Fully hot melt | Non-hot melt |
| 4 | 5 | 130 | Fully hot melt | Non-hot melt |
| 5 | 15 | 190 | Fully hot melt | Non-hot melt |
| 6 | 15 | 130 | Fully hot melt | Non-hot melt |
| 7 | 5 | 200 | Fully hot melt | Part holt melt |
| 8 | 20 | 130 | Fully hot melt | Part holt melt |
The developed degradable material heat that table 4,98wt%L-lactide/caprolactone (70/30) and 2wt% barium sulfate are made
Molten test table
Dictyosome sizing includes dictyosome upper mold and dictyosome heat treatment shaping.During dictyosome upper mold, the aforementioned net with connector
Body is packed into dictyosome shaper, and fixes with fixture, it is carried out together thermal finalization, stereotyped after, by dictyosome from mould
Take out.With suture, polylactic acid membrane is packed into dictyosome, and to carry out closing at closing in end be a union joint.
In description of the present utility model, it is to be understood that term " on ", D score, "front", "rear", "left", "right",
The orientation of the instruction such as " vertically ", " level ", " top ", " end ", " interior ", " outward " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of and describes this utility model and simplify description rather than instruction or the device of hint indication or unit
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Although the foregoing describing detailed description of the invention of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, these embodiments can be made various changes or modifications,
But these changes and amendment each fall within protection domain of the present utility model.
Claims (8)
1. the heart atrial septal defect plugging device of a developed degradable, it is characterised in that it includes one be sequentially connected with
One plate-like net, a tubular reticulum and one second plate-like net, described first plate-like net and described second plate-like net are double-deck guard, institute
The two ends stating tubular reticulum are connected to interior wire side and the outer wire side of described second plate-like net of described first plate-like net, and described
One plate-like net, described tubular reticulum and described second plate-like net are formed in one；The interior wire side center of described second plate-like net sets
Having the connector for being closed up by wire side, described connector is become by the dictyosome hot melt of the interior wire side center of described second plate-like net
Shape forms, and described connector is provided with female thread in the end relative with the wire side connected；In the outer wire side of described first plate-like net
Being provided with the union joint for being closed up by wire side at the heart, described union joint is by the dictyosome of the outer wire side center of described first plate-like net
Hot melt shapes and forms；The material of described first plate-like net, tubular reticulum, the second plate-like net and connector is the degradable that can develop
Material.
2. the heart atrial septal defect plugging device of developed degradable as claimed in claim 1, it is characterised in that described connection
Part is tubulose, and the height of described connector is 1.5-2.0mm.
3. the heart atrial septal defect plugging device of developed degradable as claimed in claim 2, it is characterised in that described connection
The external diameter of part is 2.5-3.2mm.
4. the heart atrial septal defect plugging device of developed degradable as claimed in claim 1, it is characterised in that described first
The Intranet of plate-like net faces and caves at described tubular reticulum, and the Intranet of described second plate-like net faces and caves at described connector.
5. the heart atrial septal defect plugging device of developed degradable as claimed in claim 1, it is characterised in that described first
The external diameter of plate-like net is than the big 4-6mm of external diameter of described second plate-like net.
6. the heart atrial septal defect plugging device of developed degradable as claimed in claim 1, it is characterised in that described first
The external diameter 10-16mm bigger than the external diameter of described tubular reticulum of plate-like net.
7. the heart atrial septal defect plugging device of developed degradable as claimed in claim 1, it is characterised in that described tubulose
The a length of 3.5-5.5mm of net.
8. the heart atrial septal defect plugging device of developed degradable as claimed in claim 1, it is characterised in that described first
The material of plate-like net, described tubular reticulum, described second plate-like net and described connector is the high molecular degradable silk that can develop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008206.3U CN205849480U (en) | 2016-01-05 | 2016-01-05 | The heart atrial septal defect plugging device of developed degradable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008206.3U CN205849480U (en) | 2016-01-05 | 2016-01-05 | The heart atrial septal defect plugging device of developed degradable |
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| CN205849480U true CN205849480U (en) | 2017-01-04 |
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| CN201620008206.3U Active CN205849480U (en) | 2016-01-05 | 2016-01-05 | The heart atrial septal defect plugging device of developed degradable |
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| CN (1) | CN205849480U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464390A (en) * | 2019-09-11 | 2019-11-19 | 武汉唯柯医疗科技有限公司 | A kind of atrium shunting decompression device, braiding device and its weaving method |
| WO2021046753A1 (en) * | 2019-09-11 | 2021-03-18 | 武汉唯柯医疗科技有限公司 | Atrial shunt decompression device, weaving device and weaving method thereof |
| WO2022000322A1 (en) * | 2020-06-30 | 2022-01-06 | 北京阿迈特医疗器械有限公司 | Developing composite material and preparation method therefor and use thereof, and implantable and interventional medical instrument and preparation method therefor |
-
2016
- 2016-01-05 CN CN201620008206.3U patent/CN205849480U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464390A (en) * | 2019-09-11 | 2019-11-19 | 武汉唯柯医疗科技有限公司 | A kind of atrium shunting decompression device, braiding device and its weaving method |
| WO2021046753A1 (en) * | 2019-09-11 | 2021-03-18 | 武汉唯柯医疗科技有限公司 | Atrial shunt decompression device, weaving device and weaving method thereof |
| WO2022000322A1 (en) * | 2020-06-30 | 2022-01-06 | 北京阿迈特医疗器械有限公司 | Developing composite material and preparation method therefor and use thereof, and implantable and interventional medical instrument and preparation method therefor |
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Address after: 15th Building, 388 Yindu Road, Xuhui District, Shanghai, 200231 Patentee after: Shanghai Jinkui Medical Devices Co., Ltd. Address before: Room 102, D Workshop, 1618 Yishan Road, Minhang District, Shanghai, 201103 Patentee before: Shanghai Jinkui Medical Implements Co., Ltd. |
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