CN209499979U - Highly conforming properties overlay film frame - Google Patents
Highly conforming properties overlay film frame Download PDFInfo
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- CN209499979U CN209499979U CN201821979462.2U CN201821979462U CN209499979U CN 209499979 U CN209499979 U CN 209499979U CN 201821979462 U CN201821979462 U CN 201821979462U CN 209499979 U CN209499979 U CN 209499979U
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- support frame
- frame
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Pulmonology (AREA)
- Gastroenterology & Hepatology (AREA)
- Transplantation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
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Abstract
The utility model discloses a kind of highly conforming properties overlay film frames, including support frame, it is pasted with the interior overlay film of tubulose on the inside of the support frame, is at least wound with linear overlay film at middle part outside the support frame, the threadiness overlay film and interior overlay film grip support frame.The utility model provide it is a kind of have excellent flexibility, adherence quality, can arbitrarily be bent, without kink, the highly conforming properties overlay film frame of basic original cross-sectional shape in surface of internal cavity, can be kept.
Description
Technical field
The utility model belongs to the field of medical instrument technology, is related to a kind of bracket more particularly to a kind of highly conforming properties overlay film
Bracket.
Background technique
The vascular diseases other than cardiovascular and cerebrovascular disease are clinically referred to as peripheral artery disease, including artery, vein and
The disease of three systems of lymph.It is investigated according to the World Health Organization, peripheral artery disease is a kind of extremely strong high-incidence disease of harmfulness,
If not curing for a long time, the state of an illness will be in sexual development be carried out, and serious person will lead to amputation and disable or even life threatening.
It is common as clinically being turned to Atherosclerosis because of disease caused by hemadostewnosis, occlusion or flow dilation,
Including Carotid Sclerosis, renal arteriosclerosis and lower extremities.With the increasingly intensification of Chinese population aging degree and drink
The change of structure is eaten, peripheral blood vessel lesion disease incidence steeply rises, and over-65s crowd's disease incidence is up to 20%.Data show,
In the existing hypertensive patient of China, the number with peripheral artery disease is there are about 80,000,000 or so, and illness rate is with the age
Increase and is in increasing trend.And in about 1.139 hundred million diabetes mellitus in China patients, the number of the infected of peripheral arterial disease is more up to
More than 2000 ten thousand.
Peripheral artery disease needs the treatment of system.Currently, main treatment means have operation, intracavitary therapy and intervention to control
It treats.Wherein interventional therapy because wound it is small, it is quick, restore it is good, restenosis rate is low the features such as peripheral artery disease treatment
Preferred therapeutic scheme.Stent endoprosthesis is then the most common interventional treatments.
The intracorporal lumen of people it is various it is different due to, lesion and cause the diseases such as narrow or obstruction, currently used side
Method is to be implanted into one piece of metallic support in narrow and region of obstruction, guarantees the patency of lumen.Existing bracket has bare metal stent
With overlay film frame, wherein overlay film frame, which refers to, covers one layer of biopolymer film on the surface of metallic support, and overlay film frame is not
But the supporting role with ordinary stent, can also be obstructed by the mechanicalness of film and the particular matter of film surface generation prevents and treats thrombus
Formation and neointimal hyperplasia.
The overlay film processing method of overlay film frame is usually by the way that metallic support integrally to be immersed to high molecular material liquid, wall built-up
Casting film.Or macromolecule membrane material is attached to metal support surface after-poppet and integrally heats, and film is integrally attached to metal support surface.
The overlay film frame produced in this way, metallic support are completely fixed with overlay film, form integral structure, metallic support is by film or film cylinder
Constraint, it is bad without compliance or compliance, be implanted into human body after, tissue be bent or organize wriggle when cannot be fine
Ground is bonded tissue, and foreign body sensation is stronger.In addition, lumen hyperplasia easily occurs in the bad overlay film frame of compliance, and cause perforation, bleeding
Equal severe complications.
Utility model content
The technical problem to be solved by the present invention is in view of the drawbacks of the prior art, provide a kind of with excellent soft
Pliable, adherence quality, can arbitrarily be bent, without kink, the height of basic original cross-sectional shape can be kept in surface of internal cavity
Compliance overlay film frame.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of highly conforming properties overlay film frame, including support frame, the support frame inside are pasted with the interior overlay film of tubulose,
It at least is wound with linear overlay film at middle part outside the support frame, the threadiness overlay film and interior overlay film grip support frame.
Further, in the highly conforming properties overlay film frame, the preferably described support frame is multiple waveform element head and the tail
Connect to forming multiple cyclic structures, form helical structure or form the cyclic annular composite structure with spiral, each waveform element
It is made of wave crest, wave bar and trough.
Further, in the highly conforming properties overlay film frame, the preferably described linear overlay film along waveform element in the circumferential
Arrangement be wrapped in outside support frame.
Further, in the highly conforming properties overlay film frame, the preferably described linear overlay film is on the wave bar of waveform element
It winds, does not wind linear overlay film on the trough and wave crest of waveform element.
Further, in the highly conforming properties overlay film frame, the preferably described linear overlay film is spirally wound on support frame
Outside, there are gaps between the linear overlay film of axially adjacent circle.
Further, in the highly conforming properties overlay film frame, the helical angle of the spiral winding of the preferably described linear overlay film
Degree is 1-30 °.
Further, in the highly conforming properties overlay film frame, preferably axially on, two adjacent waveform elements
Completely corresponding or part corresponds between wave crest and wave crest, trough and trough are corresponded to completely or partially corresponded to.
Further, in the highly conforming properties overlay film frame, the preferably described bracket further includes outer overlay film, the outer overlay film
Covered section or all exposed linear overlay film and support frame.
Further, in the highly conforming properties overlay film frame, the preferably described outer overlay film is overlay film band, the overlay film band spiral shell
Rotation or wound in parallel are outside linear overlay film or/and support frame.
Further, in the highly conforming properties overlay film frame, the width of the preferably described overlay film band is waveform element wave amplitude
10%-80%, the overlay film band is only wrapped on the wave bar of waveform element.
Further, in the highly conforming properties overlay film frame, at least portion between the preferably described linear overlay film and interior overlay film
It is divided into integral structure or is fixed together.
Further, in the highly conforming properties overlay film frame, the preferably described linear overlay film at least partially by knot,
At least one of viscose glue and heat seal are fixedly connected with support frame.
Further, in the highly conforming properties overlay film frame, the linear overlay film of preferably every winding support frame
At least from beginning to end, knotting is fixed on support frame respectively.
Further, in the highly conforming properties overlay film frame, the cross-sectional width L of the preferably every linear overlay film
Are as follows: 0.05mm < L < 0.2mm.
Further, in the highly conforming properties overlay film frame, the proximal end or/and distal end of the preferably described support frame are equipped with
Reinforce support frame, the portion waveshape unit of the support frame distal end or whole waveform elements are Chong Die with reinforcement support frame or part
The portion waveshape unit or whole waveform elements of overlapping or/and support frame proximal end are Chong Die with support frame is reinforced or partly overlap.
Further, in the highly conforming properties overlay film frame, the preferably described linear overlay film outside, support frame are covered with interior
The inner surface portion of exposed part and interior overlay film and contacting blood or heparin coating is fully coated on the outside of film the two.
The bracket of the utility model, support frame pass through interior overlay film and linear overlay film clamping constraint, and formation one is relatively solid
Fixed structure, compared with the existing technology, axial constraint power is small for this structure, and any bending may be implemented, and without kink, Neng Gou
In surface of internal cavity, basic circumference cross section is kept, the compliance and adherence quality of bracket are enhanced.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the structural schematic diagram of one overlay film frame of embodiment；
Fig. 2 is the structural schematic diagram of one support frame of embodiment；
Fig. 3 is one overlay film frame proximal end partial structural diagram of embodiment；
Fig. 4 is the molding structural schematic diagram of one overlay film frame of embodiment；
Fig. 5 is the structural schematic diagram of two overlay film frame of embodiment；
Fig. 6 is that the linear overlay film of embodiment three is fastened schematic diagram；
Fig. 7 is partial enlarged view at A in Fig. 6；
Fig. 8 is that example IV threadiness overlay film is fastened schematic diagram；
Fig. 9 is partial enlarged view at A in Fig. 8.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
Bearing definition: during surgery, proximal end described in the utility model refers to that the distal end is close to one end of cardiac position
One end far from cardiac position.
Embodiment one, as shown in Figure 1, a kind of highly conforming properties overlay film frame, including circumferential support skeleton 110, the support
It is pasted with the interior overlay film 120 of tubulose on the inside of skeleton 110, is at least wound with linear overlay film at middle part outside the support frame 110
130, the threadiness overlay film 130 grips support frame 110 with interior overlay film 120.From radial, linear overlay film 130, support rib
Frame 110, interior overlay film 120 arrange from outside to inside, and support frame is located at centre, and linear overlay film 130 cooperates with interior overlay film 120 from structure
On clamping limit is formed to support frame 110, in addition, between their threes can further by knotting, heat seal and bonding etc.
Connection type is reinforced fixing.
The support frame 110 of tubulose is the part that entire bracket mainly plays a supportive role, and the support frame 110 is multiple
Waveform element 110a is end to end to be formed multiple cyclic structures, form helical structure or forms the cyclic annular composite structure with spiral.
Each waveform element 110a is made of wave crest 111, wave bar 113 and trough 112.Cyclic structure refers to waveform element 110a group
At ring support independent, multiple ring support axial alignments, there are gap, without even between axially adjacent ring support
It connects.Helical structure refer to waveform element 110a spiral successively arrange formed the tubular bracket with certain axial length.This reality
Cyclic structure, helical structure can be independently selected with novel support frame 110, it can also be by cyclic structure and helical structure group
It closes and forms an integrated support skeleton 110.Combined form can be centre using helical structure, and both ends use cyclic structure；
It cyclic structure can also be arranged alternately in the axial direction with helical structure；It can also be other applicable combining forms, this is practical new
Type is not construed as limiting.
As shown in Figure 1, the support frame 110 of the utility model include three parts, proximally and distally using cyclic structure, in
Portion uses helical structure.Length proximally and distally is 5-10mm, and rest part is helical structure.As shown in Figure 1-3, support rib
The proximal end first circle of frame 110 is cyclic structure, and all wave crests 111 of the circle flush (same puts down vertical with bracket central axes
In face), the second circle starts as helical structure, and proximally distally winding extends in the shape of a spiral, until last the of distal end
Two enclose, and in helical structure, the helix angle range that waveform element 110a is formed is 1-30 °, and optimized angle is in the present embodiment
7°.The last lap of distal end is cyclic structure, and all troughs 112 of waveform element 110a flush.
Waveform element 110a shape can be multiple structural forms, the waveform of the preferably described waveform element 110a be U-shaped wave,
V-arrangement wave or S-shaped wave, the support frame 110 is by U-shaped wave, V-arrangement wave, S-shaped wave or the end to end arrangement shape of their combination
At.As shown in Figs. 1-2, waveform is U-shaped wave in the present embodiment, and the waveform element 110a includes wave bar 113, circumferentially-adjacent
Wave bar 113 connects to forming wave crest 111 in proximal end, and distal end joint forms trough 112.The wave amplitude of the U-shaped wave of the present embodiment is
3.5mm, wavelength 3.5mm.
In the axial direction, the relative position between the adjacent two waveform element 110a can be there are many situation: a kind of
It is that trough 112 completely corresponding between axially adjacent wave crest 111 and wave crest 111, axially adjacent is completely corresponding with trough 112,
The projection of wave crest 111 and trough 112 respectively enclosed i.e. in axial direction are projected and are respectively completely coincident, and this arrangement mode corresponds to cyclic structure
And helical structure.Be for second it is partially corresponding between wave crest 111 and wave crest 111, trough 112 is corresponding with 112 part of trough, i.e.,
The projection of wave crest 111 and trough 112 respectively enclosed in axial direction are projected and are respectively partially overlapped, and this arrangement can also correspond to helical structure
And cyclic structure.The third is that axially adjacent trough 112 is completely corresponding with wave crest 111, i.e., in axial direction, the wave crest 111 that respectively encloses
It projects and is overlapped with the projection of adjacent trough 112.These three structures may be used to the utility model, preferably the first and second
Structure, most preferably the first structure in the structure, since the waveform element 110a sequence of support frame 110 arranges, can make to prop up
The compliance of support bone frame itself reaches best, and bending freely, can be good at the blood vessel for complying with various forms, and keep its diameter
It is basically unchanged.As shown in Figs. 1-2, the axially adjacent two circle U wave wave crest 111 of the present embodiment and wave crest 111 are opposite, trough 112 with
Trough 112 is opposite.
In the highly conforming properties overlay film frame, the proximal end or/and distal end of the preferably described support frame 110, which are equipped with, reinforces branch
Support 115, the portion waveshape unit 110a or whole waveform element 110a and reinforcement support frame of 110 distal end of support frame
115 overlapping or partly overlap or/and the portion waveshape unit 110a of 110 proximal end of support frame or whole waveform element 110a and
Reinforce the overlapping of support frame 115 or partly overlaps.It is completely overlapped to refer to the wave for reinforcing the waveform and support frame 110 of support frame 115
Shape is completely the same, and wave crest 111, trough 112 and wave bar 113 all stick together, and partly overlaps and refers to that the two wavelength is identical, wave amplitude
Difference, wave bar 113 recline, and have gap between wave crest 111 or/and trough 112.Reinforcing support frame 115 can be independently arranged, circumferential
Both ends are individually fixed on support frame 110, are also possible to support frame 110 and are repeated arrangement one circle or several in proximal end or distally
Waveform element 110a.As shown in Figure 1-3, proximal end first circle is horizontal cyclic structure, the second circle starts to be extended spirally, second
Circle beginning partly overlaps in position with first lap, is formed and reinforces support frame 115.During helical structure extends, the
Two circles will have a crossover location 114 with proximal end first circle starting point, and the integrally-built stabilization of bracket can be guaranteed by fixing this position
Property, fixed method can compress using steel bushing, i.e. starting endpoint penetrate steel bushing, then the second circle passes through machinery across steel bushing
The mode of compression is fixed, or the mode of welding crossover location is fixed.Distal end end circle fixed form and proximal end first circle fixed form one
It causes.
In the present embodiment, 110 waveform of support frame be U-shaped wave can be used the braiding of titanium-nickel wire that single string diameter is 0.2MM and
At, have good flexibility, can arbitrarily be bent, can be good at the blood vessel for complying with various forms.
As shown in figure 4,120 the selection of material of inner film coating is ePTFE, PTFE or FEP material also can be used, these materials
The radial support power of row blocking and reinforced support can be penetrated into fluid well.It is base tube with overlay film mould stick 121 when molding,
Interior overlay film 120 it is smooth be wrapped in the tubular structure formed on mould stick 121,121 diameter of mould stick adds total straight after interior overlay film 120
Diameter is equal to the internal diameter of support frame 110.110 sets of the support frame finished is on mould stick 121, support frame 110 and interior overlay film 120
Closely sticking together, the wave crest 111 of the wave crest 111 of waveform element 110a and axially adjacent waveform element 110a correspond,
To guarantee the flexibility of bracket.
It is described threadiness overlay film 130 be wrapped in outside support frame 110 along the arrangement of waveform element 110a in the circumferential, as Fig. 1,
Shown in 4, linear overlay film 130 is attached to 110 outer surface of support frame after winding, and used material is ePTFE, PTFE or FEP, preferably
PTFE line.Canoe of the linear overlay film 130 outside support frame 110 can be with proximal end or distal end wound in parallel, can also be with
It is spiral winding, spiral winding makes bracket compliance more preferable, and the preferably described linear overlay film 130 is spirally wound on support frame
Outside 110, and there are gaps between preferably adjacent linear overlay film 130, increase the compliance of bracket.The threadiness overlay film 130 is right
Each waveform element 110a is answered to wind.The spiral angle of the spiral winding of the threadiness overlay film 130 is 1-30 °.It is preferred that 5-20 °.
For the purposes of guaranteeing the compliance and adhesion of bracket, the threadiness overlay film 130 is only wrapped in the wave bar 113 of waveform element 110a
On, linear overlay film 130 is not wound on the trough 112 and wave crest 111 of waveform element 110a.During flexion torsion, do not have
The constraint of linear overlay film 130, wave crest 111 or trough 112 can appropriate radial deflection, the just corresponding enhancing of bracket compliance.
It needs to carry out certain fixation between linear overlay film 130 and support frame 110, forms the two and more firmly connect
It connects.The threadiness overlay film 130 is fixed at least partially by least one of knotting, viscose glue and heat seal and support frame 110
Connection.The position of knotting can be the knotting that many places are carried out between the starting point and end of linear overlay film 130, can also only exist
Starting point and end knot.As shown in Figure 1, the linear overlay film 130 of the present embodiment preferably every winding support frame 110
It at least knots and is fixed on support frame 110 respectively in the starting point of head and the tail and end.In other embodiments, it can also select
The mode of viscose glue is selected, the mode of viscose glue is to coat bonding agent between linear overlay film 130 and support frame 110, will be between the two
It is adhesively fixed, the position of bonding is at least starting point and end in linear overlay film 130, can also be whole in linear overlay film 130
Body or multiple spot carry out viscose glue.Heat seal is that linear overlay film 130 is fixedly arranged on support frame 110 or interior overlay film 120 by the mode of heating.
It is at least partly structure as a whole or is fixed together between the threadiness overlay film 130 and interior overlay film 120.It is linear
Overlay film 130 and interior overlay film 120 bracket proximally and distally, be fused together to form integral structure by both heat seals.Due to
The waveform configuration of support frame 110 can also form fixation between linear overlay film 130 and interior overlay film 120, i.e., in support frame
110 gap is fixed together by way of viscose glue, heat seal between linear overlay film 130 and interior overlay film 120, is formed to support
Skeleton 110 grips.
As shown in Fig. 1,4, the mode that linear 130 starting point of overlay film and end are all made of knotting is fixed on support frame
On any wave bar 113 of the close proximal end at 110 middle parts and close distal end, rest part is covered in 110 outer surface of support frame and is in
Spiral wound extends, and plays the role of support bracket fastened.The cross-sectional width L of the every linear overlay film 130 are as follows: 0.05mm <
L < 0.2mm.The width of the threadiness overlay film 130 is and to be spaced setting less than 0.2mm, be conducive to the submissive of bracket,
In embodiment, threadiness 130 width of overlay film is about 0.1mm, under conditions of 130 width of single linear overlay film is all the same, institute
More with linear 130 quantity of overlay film, the width formed on the waveform element 110a of support frame 110 is bigger, bracket it is soft
It is pliable smaller.Linear overlay film 130 can choose parallel uniformly arrangement or parallel uneven arrangement in the arrangement of rack surface, in parallel
Purpose in order to guarantee the planarization of rack surface, prevent linear overlay film 130 to be overlapping.The general same waveform element 110a
Upper winding 2-5 root, it is 3 that the present embodiment, which selects linear 130 quantity of overlay film, i.e., winds 3 on the same waveform element 110a.
The cross-sectional shape of the threadiness overlay film 130 is not construed as limiting, and can be linear arbitrary shape, preferably circular,
It is oval or rectangular.
Exposed part and interior overlay film on the outside of 130 outside of threadiness overlay film, support frame 110 and interior 120 the two of overlay film
The heparin coating that can with the inner surface portion of contacting blood or all coat bioactivity surface, can further increase bracket plant
Enter postoperative medium-long term patency rate, reduces the probability of thrombosis in postoperative support.
Embodiment two, as shown in figure 5, the present embodiment is the improvement carried out on the basis of example 1, difference is: bracket
It further include outer overlay film 140, outer 140 covered section of overlay film or all exposed linear overlay film 130 and support rib
Frame 110.The outer overlay film 140 can choose as overlay film band 1402, and 1402 spiral of overlay film band or wound in parallel are covered in threadiness
Outside film 130 or/and support frame 110, general overlay film band 1402 is wrapped in outside linear overlay film 130, with reinforce linear overlay film 130 with
Connection between support frame 110.It is preferred that the width of the overlay film band 1402 is the 10%-80% of waveform element 110a wave amplitude,
The overlay film band 1402 is only wrapped on the wave bar 113 of waveform element 110a, in this manner it is possible to keep the secured of whole bracket
Connection not too much influences the flexibility of bracket.Other than band-like overlay film band 1402, outer overlay film can also be overlay film pipe 1401,
The suit of overlay film pipe 1401 is attached to outside linear overlay film 130 or/and support frame 110.1401 axial length of overlay film pipe relatively covers
Film strips 1402 are long, are generally used for mount proximal end and distal end, and interior overlay film and support frame package are linked together, theirs are prevented
It slips.
As shown in figure 5, outer two kinds of the setting simultaneously of overlay film 140, i.e., be made of overlay film pipe 1401 and overlay film band 1402, be located at branch
Frame outermost layer.1402 section start of overlay film band is located at support frame 110 close to the position of mount proximal end, and covers linear overlay film
130 starting point is located at support frame 110 at the end of overlay film band 1402 close to rack far end, and covers linear overlay film 130
End, rest part cover linear overlay film 130 and wind extension in the shape of a spiral.The width of the overlay film band 1402 can be
Even or non-uniform, width can influence the flexibility of overlay film frame entirety, and width is wider, then flexible smaller, the institute of bracket
The width for stating overlay film band 1402 is that can cover U-shaped wave height 10%-80%, in the present embodiment, preferably 50%-80%.In this model
Can be while guaranteeing that support frame 110 and overlay film are stably connected in enclosing, bracket still is able to keep good submissive performance.Separately
Outside, the overlay film pipe 1401 wraps up the two sections of outer walls of support frame 110 proximally and distally, and makes interior overlay film by the way of heat seal
120 and linear overlay film 130 and the support frame 110 of spiral ring combine together, the connection for further strengthening bracket entirety is steady
Qualitative and good adherence quality.
In the present embodiment, heat seal Nian Jie with interior overlay film 120, linear overlay film 130 using outer overlay film 140 proximally and distally
It can be connect only with the mode of knotting with support frame 110, what outer overlay film 140 was fixedly connected and was knotted with interior overlay film 120
Linear overlay film 130 cooperates, and forms solid and reliable connection, and maintain the due compliance of bracket.
Remaining structure is as in the first embodiment, details are not described herein.
Embodiment three, the present embodiment are the improvement carried out on the basis of embodiment one or two.
As shown in fig. 6, the difference of the embodiment and embodiment one or two is, linear overlay film 130 is in 110 table of support frame
Face shape winding of spinning extends, and fixed form uses the position selected part that contacts in linear overlay film 130 with support frame 110
It is in the present embodiment, described in such a way that the unilateral wave bar 113 of each U-shaped ripple knots using further fixed form
Unilateral wave bar 113 can be ipsilateral or not ipsilateral.
As shown in Figure 6,7, the mode that linear 130 starting point of overlay film knots is fixed on appointing in 110 upper section of support frame
It anticipates on wave bar 113, is then affixed to rack surface and winds extension in the shape of a spiral, it is every by starting point of starting point during extension
It is spaced a wave bar 113 to knot, until 130 end of linear overlay film.Threadiness is covered using the fixed form that unilateral side knots
Film 130 is fixed on wave bar 113, can further increase bracket middle section threadiness overlay film 130 connect with support frame 110 it is steady
It is qualitative.
In the present embodiment, can also be similar with embodiment one, one layer of overlay film band is wrapped up again in linear 130 outer layer of overlay film,
Further strengthen the stability and adherence quality of bracket.
Remaining structure is as in the first embodiment, details are not described herein.
Example IV, the present embodiment are the improvement carried out on the basis of embodiment one or two.
As Figure 8-9, the difference between the present embodiment and embodiment one or two is, linear overlay film 130 is in support rib
110 surface of frame spin shape winding extend, fixed form using bilateral knot by the way of.
As shown in figure 9, the mode of linear 130 starting point of overlay film knotting be fixed on it is any in 110 upper section of support frame
It on wave bar 113, is then affixed to rack surface and winds extension in the shape of a spiral, during extension, using starting point as the every warp of starting point
It crosses a wave bar 113 to knot, until 130 end of linear overlay film.The fixed form to be knotted using bilateral is by linear overlay film
130 are fixed on wave bar 113, the stability and fastness of the bracket further strengthened.
In the present embodiment, can also be similar with embodiment one, one layer of overlay film band is wrapped up again in linear 130 outer layer of overlay film makees
For outer overlay film 140, the stability and adherence quality of bracket are further strengthened.
Remaining structure is as in the first embodiment, details are not described herein.
Claims (16)
1. a kind of highly conforming properties overlay film frame, which is characterized in that including support frame, be pasted with tubulose on the inside of the support frame
Interior overlay film, be at least wound with linear overlay film at middle part outside the support frame, the threadiness overlay film is gripped with interior overlay film
Support frame.
2. highly conforming properties overlay film frame according to claim 1, which is characterized in that the support frame is multiple waveform lists
Member is end to end to be formed multiple cyclic structures, form helical structure or forms the cyclic annular composite structure with spiral, each wave
Shape unit is made of wave crest, wave bar and trough.
3. highly conforming properties overlay film frame according to claim 2, which is characterized in that the threadiness overlay film exists along waveform element
Arrangement in circumferential direction is wrapped in outside support frame.
4. highly conforming properties overlay film frame according to claim 3, which is characterized in that the threadiness overlay film is in waveform element
It is wound on wave bar, does not wind linear overlay film on the trough and wave crest of waveform element.
5. highly conforming properties overlay film frame according to claim 2, which is characterized in that the threadiness overlay film is spirally wound on branch
Outside support bone frame, there are gaps between the linear overlay film of axially adjacent circle.
6. highly conforming properties overlay film frame according to claim 5, which is characterized in that the spiral winding of the threadiness overlay film
Spiral angle is 1-30 °.
7. highly conforming properties overlay film frame according to claim 2, which is characterized in that in axial direction, two adjacent waves
Completely corresponding or part corresponds between the wave crest of shape unit and wave crest, trough and trough are corresponded to completely or partially corresponded to.
8. highly conforming properties overlay film frame according to claim 2, which is characterized in that the bracket further includes outer overlay film, institute
State outer overlay film covered section or all exposed linear overlay film and support frame.
9. highly conforming properties overlay film frame according to claim 8, which is characterized in that the outer overlay film is overlay film band, described
Overlay film band spiral or wound in parallel are outside linear overlay film or/and support frame.
10. highly conforming properties overlay film frame according to claim 9, which is characterized in that the width of the overlay film band is waveform
The 10%-80% of unit wave amplitude, the overlay film band are only wrapped on the wave bar of waveform element.
11. highly conforming properties overlay film frame described in -10 any one according to claim 1, which is characterized in that the threadiness overlay film
It is at least partly structure as a whole or is fixed together between interior overlay film.
12. highly conforming properties overlay film frame described in -10 any one according to claim 1, which is characterized in that at least part of institute
Linear overlay film is stated to be fixedly connected by least one of knotting, viscose glue and heat seal with support frame or/and interior overlay film.
13. highly conforming properties overlay film frame according to claim 12, which is characterized in that every winds the described of support frame
At least from beginning to end, knotting is fixed on support frame linear overlay film respectively.
14. highly conforming properties overlay film frame described in -10 any one according to claim 1, which is characterized in that the every threadiness
The cross-sectional width L of overlay film are as follows: 0.05mm < L < 0.2mm.
15. highly conforming properties overlay film frame described in -10 any one according to claim 1, which is characterized in that the support frame
Proximal end or/and distal end be equipped with and reinforce support frame, the portion waveshape unit of the support frame distal end or whole waveform elements with
Reinforce support frame overlapping or partly overlaps or/and the portion waveshape unit of support frame proximal end or whole waveform element and reinforce
Support frame is overlapped or partly overlaps.
16. highly conforming properties overlay film frame described in -10 any one according to claim 1, which is characterized in that the threadiness overlay film
The inner surface portion or all paintings of exposed part and interior overlay film and contacting blood on the outside of outside, support frame and interior overlay film the two
It is covered with heparin coating.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN201821979462.2U Active CN209499979U (en) | 2017-12-01 | 2018-11-28 | Highly conforming properties overlay film frame |
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Cited By (2)
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|---|---|---|---|---|
| CN111759554A (en) * | 2020-07-08 | 2020-10-13 | 东华大学 | W-shaped ring and method for passivating and fixing end part of braided metal bracket by using same |
| CN113023424A (en) * | 2021-02-26 | 2021-06-25 | 重庆市金利药包材料有限公司 | Curing device of medicinal wrapping bag |
Families Citing this family (4)
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|---|---|---|---|---|
| EP3988062A4 (en) * | 2019-06-19 | 2023-04-19 | Hangzhou Endonom Medtech Co., Ltd | Segmental covered stent and preparation method therefor |
| CN111281600A (en) * | 2020-02-27 | 2020-06-16 | 苏州特普新智能科技有限公司 | TIPS stent |
| CN112137758A (en) * | 2020-03-05 | 2020-12-29 | 上海宏派医疗科技有限公司 | Double-layer drug-coated blood vessel covered stent |
| CN115006053B (en) * | 2022-08-09 | 2022-11-15 | 北京华脉泰科医疗器械股份有限公司 | Integrated intraoperative stent |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5683451A (en) * | 1994-06-08 | 1997-11-04 | Cardiovascular Concepts, Inc. | Apparatus and methods for deployment release of intraluminal prostheses |
| US6042605A (en) * | 1995-12-14 | 2000-03-28 | Gore Enterprose Holdings, Inc. | Kink resistant stent-graft |
| US6558414B2 (en) * | 1999-02-02 | 2003-05-06 | Impra, Inc. | Partial encapsulation of stents using strips and bands |
| US6364904B1 (en) * | 1999-07-02 | 2002-04-02 | Scimed Life Systems, Inc. | Helically formed stent/graft assembly |
| US6312458B1 (en) * | 2000-01-19 | 2001-11-06 | Scimed Life Systems, Inc. | Tubular structure/stent/stent securement member |
| US8088158B2 (en) * | 2002-12-20 | 2012-01-03 | Boston Scientific Scimed, Inc. | Radiopaque ePTFE medical devices |
| CN201572218U (en) * | 2009-10-15 | 2010-09-08 | 周星 | Supporting rack capable of being taken out |
| DE102011115902B4 (en) * | 2010-12-22 | 2021-07-01 | Bentley Innomed Gmbh | Stent-graft and its use |
| US20140277381A1 (en) * | 2013-03-14 | 2014-09-18 | W. L. Gore & Associates, Inc. | Methods and apparatus for assembling stent-grafts |
| JP6446471B2 (en) * | 2014-04-02 | 2018-12-26 | ボストン サイエンティフィック サイムド，インコーポレイテッドＢｏｓｔｏｎ Ｓｃｉｅｎｔｉｆｉｃ Ｓｃｉｍｅｄ，Ｉｎｃ． | Endoprosthesis and method for producing the same |
| CN205073073U (en) * | 2015-10-16 | 2016-03-09 | 李选 | Be interrupted tectorial membrane support |
| CN105853024A (en) * | 2016-04-22 | 2016-08-17 | 湖南埃普特医疗器械有限公司 | Covered stent, manufacturing method thereof and sheath tube |
| CN106420127B (en) * | 2016-10-15 | 2019-03-15 | 郑州大学第一附属医院 | One kind complying with esophageal peristalsis and is bonded Esophageal Stent entirely |
| CN106344210B (en) * | 2016-11-17 | 2018-05-22 | 浙江归创医疗器械有限公司 | Coating overlay film frame |
-
2018
- 2018-11-28 CN CN201811436245.3A patent/CN109350304B/en active Active
- 2018-11-28 CN CN201821979462.2U patent/CN209499979U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759554A (en) * | 2020-07-08 | 2020-10-13 | 东华大学 | W-shaped ring and method for passivating and fixing end part of braided metal bracket by using same |
| CN111759554B (en) * | 2020-07-08 | 2022-07-15 | 东华大学 | W-shaped ring and method for passivating and fixing end part of braided metal bracket by using same |
| CN113023424A (en) * | 2021-02-26 | 2021-06-25 | 重庆市金利药包材料有限公司 | Curing device of medicinal wrapping bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109350304A (en) | 2019-02-19 |
| CN109350304B (en) | 2021-08-17 |
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