CN108261253A - Overlay film frame - Google Patents
Overlay film frame Download PDFInfo
- Publication number
- CN108261253A CN108261253A CN201611267394.2A CN201611267394A CN108261253A CN 108261253 A CN108261253 A CN 108261253A CN 201611267394 A CN201611267394 A CN 201611267394A CN 108261253 A CN108261253 A CN 108261253A
- Authority
- CN
- China
- Prior art keywords
- overlay film
- film frame
- waveform
- bare bracket
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
Landscapes
- Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of overlay film frames, the bare bracket section being connected including overlay film frame section and with the proximal end of the overlay film frame section, the bare bracket section includes at least one wavy annular object, the wavy annular object includes multiple waveforms circumferentially distributed along the overlay film frame, at least one in multiple waveforms is bent to the direction far from the overlay film frame axis.It is easy in lesser curvature side the phenomenon that wave crest vertex upwarps occur present invention improves bare bracket, blood stream rheology in aorta, prevents thrombosis caused by being upwarped so as to avoid bare bracket waveform.Meanwhile aortic arch lesser curvature side blood vessel can be preferably bonded with cambered waveform, increase anchorage force, prevent stent migration.
Description
Technical field
The present invention relates to cardiac vascular medical instrument more particularly to a kind of overlay film frames.
Background technology
The overlay film frame of the relevant technologies includes overlay film frame section and the bare bracket section being connected with overlay film frame section proximal end.Naked branch
Frame section refers to the wire barrel of no overlay film covering.Bare bracket section can extending bracket proximal landing zone, while will not seal
Stifled branch vessel, and can also increase the adherent performance of overlay film frame proximal end.Therefore it is opposite for interlayer cut in aorta pectoralis
The relatively short patient of branch vessel or aneurysm of thoracic aorta neck on the arch of aorta has better adapting to property.
As shown in Figure 1, the Chinese patent that notification number is CN2817768Y discloses a kind of overlay film frame, including multiple main bodys
Brace sections 3 and the bare bracket section 1 being connected with overlay film frame proximal end.The 31 equal position of all lower floor vertex of the waveform of main body rack section 3
In on the axially vertical same circumference with overlay film frame；All upper strata vertex 32,33 of waveform are respectively positioned on and the structure
On the same clinoplain of axial out of plumb.The top layer vertex of multiple main body rack sections 3 is connected by connecting rod.
To increase the adherence quality of firm side 51, dwarf waves vertex is positioned over aortic arch by the bare bracket section 1 of above structure
Firm side 51 is to improve overlay film frame proximal end adherence quality, while relatively low wave height can reduce stimulation of the firm side 51 to endangium,
Reduce postoperative complications.The structure of such bare bracket section 1 so that the soft 52 bare bracket wave height of side of aortic arch is larger.Such as Fig. 2 institutes
Show, according to aortic arch physiological structure, 7 curved radius of aortic arch lesser curvature side is smaller, longer bare bracket waveform it is upper
Layer wave crest along the adherent place in lower floor vertex tangent line A so that vacantly in the blood vessel, cause bare bracket small in bare bracket upper strata vertex
Curved 7 adherence quality of side is insufficient, and anchorage force declines, and increases the risk of stent migration, and hanging bare bracket wave circle in the blood vessels can shadow
Endovascular blood flow is rung, causes thrombus.
Invention content
The technical problem to be solved in the present invention is, in view of the drawbacks of the prior art, provides a kind of adherence quality and preferably covers
Membrane support.
The technical solution adopted by the present invention to solve the technical problems is：A kind of overlay film frame is provided, a kind of overlay film frame,
The bare bracket section being connected including overlay film frame section and with the proximal end of the overlay film frame section, the bare bracket section include at least one
Wavy annular object, the wavy annular object includes multiple waveforms circumferentially distributed along the overlay film frame, in multiple waveforms
At least one is bent to the direction far from the overlay film frame axis.
In one embodiment of this invention, at least one in multiple waveforms is to close to the overlay film frame axis
Direction is bent, and the waveform to the waveform far from overlay film frame axis direction bending with being oppositely arranged.
In one embodiment of this invention, the wave crest vertex of multiple waveforms is fallen on same circumference, multiple described
The trough vertex of waveform is fallen on another circumference, and the diameter of a circle where the wave crest vertex of multiple waveforms is more than multiple
Diameter of a circle where the trough vertex of the waveform.
In one embodiment of this invention, the overlay film frame section further includes an axis set along the overlay film frame busbar
To support portion, the side where the axial direction support portion is the big curved side of the overlay film frame, and described big curved side is opposite is
Lesser curvature side, then：It is located at the big curved side to the waveform close to overlay film frame axis direction bending, to far from the overlay film branch
The waveform of frame axis direction bending is located at the lesser curvature side.
In one embodiment of this invention, there are two the waveforms being bent to the close overlay film frame axis direction, described
The trough of axial two waveform formations of support portion face.
In one embodiment of this invention, to the wave crest fillet half of the waveform close to overlay film frame axis direction bending
Diameter and wave crest radius of corner to the waveform far from overlay film frame axis direction bending are more than bare bracket section other waveforms
Wave crest radius of corner.
The present invention by several waveforms of bare bracket by one of Waveform Design into far from overlay film frame axis
The radian of line, arc curve approximation improve bare bracket and are easy in lesser curvature side close to the crooked radian of the lesser curvature side of the arch of aorta
There is the phenomenon that wave crest vertex upwarps, blood stream rheology in aorta caused by being upwarped so as to avoid bare bracket waveform,
Prevent thrombosis.Meanwhile aortic arch lesser curvature side blood vessel can be preferably bonded with cambered waveform, increase anchor
Determine power, prevent stent migration.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is the structure diagram of the overlay film frame of the relevant technologies；
Fig. 2 is the schematic diagram that overlay film frame shown in FIG. 1 is implanted to aortic arch；
Fig. 3 is a kind of structure diagram of overlay film frame first embodiment of the present invention；
Fig. 4 is the schematic diagram that overlay film frame shown in Fig. 3 is implanted to aortic arch；
Fig. 5 is a kind of structure diagram of overlay film frame second embodiment of the present invention；
Fig. 6 is the schematic diagram that overlay film frame shown in fig. 5 is implanted to aortic arch；
Fig. 7 is a kind of structure diagram of overlay film frame 3rd embodiment of the present invention；
Fig. 8 is the view in the B directions of overlay film frame shown in Fig. 7；
Fig. 9 is the schematic diagram that overlay film frame shown in Fig. 7 is implanted to aortic arch；
Figure 10 is a kind of structure diagram of overlay film frame fourth embodiment of the present invention；
Figure 11 is the vertical view of overlay film frame shown in Figure 10.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
The specific embodiment of the present invention.
First embodiment：
As shown in figure 3, a kind of overlay film frame 10 includes overlay film frame section 11 and is connected with 11 proximal end of overlay film frame section naked
Brace sections 12.Bare bracket section 12 includes a wavy annular object, it is to be understood that bare bracket section 12 can also include multiple waves
Shape ring, the wavy annular object of most proximal end includes multiple circumferentially distributed waveforms along overlay film frame 10, wherein there are one waves
Shape 121 is bent to the direction far from 10 axis 13 of overlay film frame.
As shown in figure 4, Stanford Type Bs interlayer expansion only involves descending aorta or extends to abdominal aorta, but do not involve
Aorta ascendens and the arch of aorta.The intimal tear of Stanford Type B interlayers is frequently located in aortic isthmus, is moved under left clavicle
The root of arteries and veins, the presence of bare bracket section 12 can make the proximal end of overlay film frame section 11 close to the opening lower edge of branch vessel 16, can
Interlayer cut 17 is blocked well, and will not hinder the blood flow of branch vessel 16.To increase the anchoring performance of overlay film frame proximal end,
The unsuitable too short of the waveform height of bare bracket section 12, in order to avoid influencing the anchoring performance of overlay film frame proximal end, which usually should be big
In the diameter of branch vessel 16, but longer wave height can reduce the adherent performance of bare bracket section, and especially bare bracket section 12 is located at
The waveform 121 of lesser curvature side 14 will appear the problem of wave crest upwarps.Therefore, according to the anatomical structure of aortic arch, the present invention will
The bare bracket section 12 of overlay film frame 10 is designed to curved to the axis 10 far from overlay film frame 10 close to the waveform 121 of lesser curvature side 16
Song, the radius of corner of the waveform 121 bending are approximately equal to the radius of the lesser curvature side 16 of aortic arch.
It is worth noting that, in the case where bare bracket section 12 has had the waveform of bending, the overlay film frame 10 it is large and small
Curved side has just been determined, therefore in implantation, it shall be noted that and the waveform of bending is allowed to correspond to the lesser curvature side 14 of aortic arch, and
The side opposite with the waveform of bending is directed at the big curved side 15 of aortic arch.
The present invention by several waveforms of bare bracket by one of Waveform Design into far from overlay film frame axis
The radian of line, arc curve approximation improve bare bracket and are easy in lesser curvature side close to the crooked radian of the lesser curvature side of the arch of aorta
There is the phenomenon that wave crest vertex upwarps, blood stream rheology in aorta caused by being upwarped so as to avoid bare bracket waveform,
Prevent thrombosis.Meanwhile aortic arch lesser curvature side blood vessel can be preferably bonded with cambered waveform, increase anchor
Determine power, prevent stent migration.
Second embodiment：
As shown in figure 5, the structure and first embodiment of the overlay film frame 20 of the present embodiment are essentially identical, unlike,
In the embodiment, the bare bracket section 22 of overlay film frame 20 also has the waveform 222 being bent to the axis 23 close to overlay film frame 20,
And the waveform 222 is oppositely arranged with the waveform 221 being bent to the direction of the axis 23 far from overlay film frame 20.
Likewise, in the case where bare bracket section 22 is there are both waveforms 221 and 222, the size of overlay film frame 20 is curved
Side has just been determined, and has directionality during implantation, as shown in fig. 6, waveform 221 should be directed to the small curved of aortic arch
Waveform 222 is directed at the big curved side 25 of aortic arch by side 24.
It is big curved that the bending that waveform 222 has makes bare bracket section 20 that can be also bonded well in the big curved side 25 of aortic arch
The bending of side 25.Therefore, there is no height limitations for waveform of the bare bracket section 20 close to big curved side, can make waveform preferably across blood
Pipe branch openings increase the effective length of anchoring, reduce big curved side bare bracket section waveform and enter aortic arch branch blood
Pipe equivalent risk.
To sum up, the bare bracket section 20 of the present embodiment can preferably comply with the physiology and appearance of aortic arch, make bare bracket
Wave circle can be preferably bonded blood vessel, reduce bare bracket wave circle while increasing anchorage force and blood vessel part is answered
Power avoids the postoperative complications such as stimulation vascellum endometrial hyperplasia.Also, aorta is bonded by the distinctive structure of bare bracket section waveform
The bending shape of bow portion blood vessel breaches the waveform height limitation of bare bracket section side curved greatly, can be across branch's blood
Pipe, while higher bare bracket waveform can increase the anchoring length of stent, prevent stent migration etc..
3rd embodiment：
As shown in Figure 7 and Figure 8, the overlay film frame 30 of the present embodiment and the basic phase of overlay film frame structure of a upper embodiment
Together, unlike, in the present embodiment, the wave crest vertex of more than 32 a waveform of bare bracket section is fallen on same circumference, the circumference
With radius R1, the trough vertex of multiple waveforms is fallen on another identical circumference, which has radius R2.And R1 ＞ R2,
So that bare bracket section 32 is in " loudspeaker " shape radiated to the axis 33 far from overlay film frame 30.That is, in the present embodiment,
Bare bracket section 32 has certain taper.
There is bare bracket section 32 certain taper overlay film frame 30 to be caused to be bent serious or blood in reply aortic arch
During the lesion that pipe diameter changes greatly, good adherent and anchoring performance can be played.Meanwhile 32 lesser curvature side 24 of bare bracket section
The waveform morphology that waveform 321 and the waveform 322 of big curved side 35 are bent can make overlay film frame 30 comply with aortic arch blood vessel
Bending shape, effectively reduce stimulation of the bare bracket section to blood vessel, avoid the postoperative complications such as endometrial hyperplasia.
In addition, the bare bracket section 32 of overlay film frame 30 so that overlay film frame 30 is intravascular in variable diameters with certain taper
Portion has better adherence quality, especially in the curved blood vessel of variable diameters.Therefore, bare bracket section 32 makes naked branch with tapered
Frame section 32 adapts to more vascular morphologies.
Fourth embodiment：
As shown in Figure 10, the overlay film frame 40 of the present embodiment and upper several embodiments are essentially identical, unlike, the overlay film
Stent 40 further includes the axial support portion 43 along the busbar setting of overlay film frame 40.Side where axial support portion 43 is overlay film
The big curved side of stent 40, on the other side is lesser curvature side.When mounted, the big curved side alignment aorta of overlay film frame 40 should be enabled
The big curved side in bow portion enables the lesser curvature side of overlay film frame 40 be directed at the lesser curvature side of aortic arch.
As shown in figure 11, in the present embodiment, it in several waveforms of bare bracket section 42, is covered there are two waveform to close
The waveform 421 of 43 direction of the axis bending of membrane support 40, and the two waveforms 421 are respectively positioned on overlay film frame 40 and are equipped with axial support
The namely big curved side in that side in portion 43, and the trough that axial support portion 43 face, two waveforms 421 are formed.
This is because the extending direction of axial support portion 43 always with arch of aorta side superimposed curved greatly, if 42 wave of bare bracket section
The crest location of shape is placed exactly in the big curved side of aortic arch, in addition overlay film frame is bent later screen resilience, is placed in actively
To the arch of aorta, there are the wave crest portions of lasting stress, especially bare bracket section 42 in side curved greatly to the stent in arcus haemalis portion, along with blood
Pipe will be wriggled so that overlay film frame side curved greatly will if things go on like this cause interlayer or endometrial hyperplasia etc. concurrent blood vessel stimulation increasing
Disease.Therefore, the present embodiment reduces the trough face axial direction support portion 43 of the big curved side of bare bracket section 42 curved greatly to aortic arch
The stress of side reduces the lasting stimulation in 42 pairs of aortic archs of bare bracket section side curved greatly, prevents hyperplasia and interlayer.In addition, may be used also
The fillet α of two 421 wave crests of waveform of big curved side to be done greatly, further reduce the stress to bow portion.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of overlay film frame, the bare bracket section being connected including overlay film frame section and with the proximal end of the overlay film frame section is described
Bare bracket section includes at least one wavy annular object, and the wavy annular object includes multiple circumferentially distributed along the overlay film frame
Waveform, which is characterized in that at least one in multiple waveforms is bent to the direction far from the overlay film frame axis.
2. overlay film frame according to claim 1, which is characterized in that at least one in multiple waveforms is to close to institute
The direction bending of overlay film frame axis is stated, and the waveform is set with to the waveform far from overlay film frame axis direction bending is opposite
It puts.
3. overlay film frame according to claim 2, which is characterized in that the wave crest vertex of multiple waveforms is fallen same
On circumference, the trough vertex of multiple waveforms is fallen on another circumference, and where the wave crest vertex of multiple waveforms
Diameter of a circle is more than the diameter of a circle where the trough vertex of multiple waveforms.
4. according to claim 1-3 any one of them overlay film frames, which is characterized in that the overlay film frame section further includes an edge
The axial support portion of the overlay film frame busbar setting, the side where the axial direction support portion is the big curved of the overlay film frame
Side, it is opposite with the big curved side for lesser curvature side, then：It is located to the waveform close to overlay film frame axis direction bending described
Big curved side is located at the lesser curvature side to the waveform far from overlay film frame axis direction bending.
5. overlay film frame according to claim 4, which is characterized in that close to overlay film frame axis direction bending
There are two waveforms, the trough of axial direction support portion two waveform formations of face.
6. overlay film frame according to claim 5, which is characterized in that close to overlay film frame axis direction bending
The wave crest radius of corner of waveform and the wave crest radius of corner of waveform being bent to the separate overlay film frame axis direction are more than
The wave crest radius of corner of other waveforms of bare bracket section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267394.2A CN108261253B (en) | 2016-12-31 | 2016-12-31 | Covered stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267394.2A CN108261253B (en) | 2016-12-31 | 2016-12-31 | Covered stent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108261253A true CN108261253A (en) | 2018-07-10 |
| CN108261253B CN108261253B (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611267394.2A Active CN108261253B (en) | 2016-12-31 | 2016-12-31 | Covered stent |
Country Status (1)
| Country | Link |
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| CN (1) | CN108261253B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431650A (en) * | 2018-11-27 | 2019-03-08 | 东莞先健畅通医疗有限公司 | Overlay film frame |
| CN109662804A (en) * | 2019-01-15 | 2019-04-23 | 李卫校 | The dedicated endovascular stent of TIPS operation |
| CN111297515A (en) * | 2020-03-21 | 2020-06-19 | 石家庄帝中医疗器械科技有限公司 | Aorta covered stent and system |
| WO2023071792A1 (en) * | 2021-10-26 | 2023-05-04 | 先健科技(深圳)有限公司 | Covered stent and combined stent |
| CN116763494A (en) * | 2023-06-25 | 2023-09-19 | 合肥综合性国家科学中心大健康研究院 | Aortic arch part branch anti-seepage support system |
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| CN206934212U (en) * | 2016-12-31 | 2018-01-30 | 先健科技(深圳)有限公司 | Overlay film frame |
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| WO1998016172A1 (en) * | 1996-10-11 | 1998-04-23 | Alain Fouere | Flexible expandable tube for surgical dilating of physiological ducts |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431650A (en) * | 2018-11-27 | 2019-03-08 | 东莞先健畅通医疗有限公司 | Overlay film frame |
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| CN109662804A (en) * | 2019-01-15 | 2019-04-23 | 李卫校 | The dedicated endovascular stent of TIPS operation |
| CN111297515A (en) * | 2020-03-21 | 2020-06-19 | 石家庄帝中医疗器械科技有限公司 | Aorta covered stent and system |
| WO2023071792A1 (en) * | 2021-10-26 | 2023-05-04 | 先健科技(深圳)有限公司 | Covered stent and combined stent |
| CN116763494A (en) * | 2023-06-25 | 2023-09-19 | 合肥综合性国家科学中心大健康研究院 | Aortic arch part branch anti-seepage support system |
| CN116763494B (en) * | 2023-06-25 | 2024-04-02 | 合肥综合性国家科学中心大健康研究院 | Aortic arch part branch anti-seepage support system |
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