CN108785754A - Medical overlay film frame - Google Patents
Medical overlay film frame Download PDFInfo
- Publication number
- CN108785754A CN108785754A CN201710311952.9A CN201710311952A CN108785754A CN 108785754 A CN108785754 A CN 108785754A CN 201710311952 A CN201710311952 A CN 201710311952A CN 108785754 A CN108785754 A CN 108785754A
- Authority
- CN
- China
- Prior art keywords
- overlay film
- coating
- film frame
- frame according
- medical
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
-
- 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
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
- A61L31/022—Metals or alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
-
- 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
- A61F2002/072—Encapsulated stents, e.g. wire or whole stent embedded in lining
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/18—Modification of implant surfaces in order to improve biocompatibility, cell growth, fixation of biomolecules, e.g. plasma treatment
Abstract
The present invention relates to a kind of medical overlay film frames, are intended to provide a kind of stabilized structure, and outer diameter is smaller and uniform, and can improve the medical overlay film frame of installation passability.A kind of medical overlay film frame, including：Support construction and overlay film unit, it is characterized in that, the overlay film unit is outer film coating, the outer film coating has been formed uniformly at least two multilayer folding structures in its circumferential direction and the outer film coating is coated in the support construction, and the outer film coating is the biological membrane material with good blood compatibility.The outer film coating is expanded polytetrafluoroethyltube tube shape film, this kind of material has good biocompatibility and extremely low thrombotic, can be completely used for a variety of implantation products.Additionally due to use accordion structure, make the prepackage of its overlay film frame on a conveyor when uniform force, make at holder by uniform external diameter, while when stent-expansion struts, overlay film part can uniform force, ensure the distracted effect of tubular film.
Description
Technical field
The present invention relates to a kind of medical instruments, more particularly it relates to a kind of doctor for vascular interventional treatment
Use overlay film frame.
Background technology
Coronary arterial perforation is rare in interventional therapeutic technique but breakneck complication, can lead to the higher acute heart
Dirty tamponade, or even dead incidence.As calcification score diagnosis and treatment number must increase, novel calcification score instrument and interventional technique
Development of constantly bringing forth new ideas, coronary artery perforation incidence also obviously increase.
In in recent years, when handling vascular puncture and other injury of blood vessel, it is implanted into holder in the blood vessels and has been considered as passing
The alternative of system Surgical revision.Endovascular stent-graft with reduce anesthesia demand, blood loss and reducing is cut
Except range.Due to being not necessarily to surgical incision, reduces the traumatic of operation, all there is prodigious attraction to patient and doctor.
As a kind of implanted holder, overlay film frame is the holder that special film property material is covered in metal support surface, both
The function of metallic support, and the characteristic with film property material are remained, the disease that many ordinary stents cann't be solved can be handled
Become.In recent years, increasing using overlay film frame treatment peripheral angiopathy, and obtain comparatively ideal effect.Such as coronal
In arterial disease, overlay film frame is as a kind for the treatment of means with special construction and function, to traditional treatment means (surgery
Operation, conventional stent treatment and drug therapy) it is a kind of supplement.It usually can timely and effectively be controlled by the merging of overlay film frame
Coronary artery bleeding processed, prevents or reduces the generation of cardiac tamponade, avoids surgical operation or obtains surgical operation chance, with drop
Low actual.
However, overlay film frame type in the market is various and specification is different, particularly, metallic support in overlay film frame with
Be arranged the film property material in its periphery can be used various ways cooperation, such as Cook medical company (Cook Medical) production
The holder of entitled Zenith, wherein metallic support, which are connect with film property material in the form of suture, to be coordinated, and is matched using this
Conjunction mode, metallic support are inevitably partially exposed at except film property material, and not only its structure is easy impaired, and long-term
It is also possible to destroying vascular wall after use.In addition, the entitled Jostent also produced in the market with Abbott Laboratories (Abbott) company
Holder uses " sandwich " formula framework between holder therein and film property material, but the stake body of this structure is with larger
Outer diameter, passability when installation are poor.
The part is disclosed is in order to provide the background information of the present invention.Applicant have observed that the part can include should
Available information between application.But applicant is not regarded as to constitute the prior art comprising any information in the portion.
Invention content
To solve the above-mentioned problems, it the present invention is intended to provide a kind of stabilized structure, outer diameter is smaller and uniform, and can carry
The medical overlay film frame of height installation passability.
Overlay film frame provided by the invention, including：Support construction and overlay film unit, the overlay film unit are outer film coating,
The outer film coating has been formed uniformly at least two multilayer folding structures in its circumferential direction and the outer film coating is coated on institute
It states in support construction, and the outer film coating is the biological membrane material with good blood compatibility.
Preferably, the number of plies of the multilayer folding structure is 3 layers.
Preferably, the outer film coating is the micro- cavernous structure of micron order.
Preferably, the outer film coating is nondegradable high molecular material.
Preferably, the non-degradable high molecular material is expanded PTFE.
Preferably, the support construction is netted cylindrical coating bracket, and is covered on the surface of the coating bracket
Polymeric coating layer.
Preferably, the material of the coating bracket is made of L605 cochromes.
Preferably, the thickness of the polymeric coating layer on the coating bracket surface is nanometer grade thickness.
Preferably, the polymeric coating layer on the coating bracket surface is made of Vinalac 5920.
Preferably, exposure has a strip carrier unit and for connecting the submounts respectively at the both ends of the overlay film frame
Connecting rod.
Advantageous effect of the invention：
(1) outer film coating is expanded polytetrafluoroethyltube tube shape film, this kind of material have good biocompatibility and
Extremely low thrombotic can be completely used for a variety of implantation products.Additionally due to using accordion structure, make its overlay film branch
Frame prepackage on a conveyor when uniform force, make at holder by uniform external diameter, while when stent-expansion struts, overlay film portion
Point can uniform force, ensure the distracted effect of tubular film.
(2) coating bracket selects L605 cochromes as holder base material, is reticulated using laser engraving, after
The holder after engraving is surface-treated through pickling, polishing process, there is good biocompatibility.
(3) due to the previously prepared ultra-thin PBuMA polymeric coating layers of the metallic support in this kind of overlay film frame, and this can be made
Covalent bonding is realized at the interface of coating and metallic support, and binding force is strong, interface stability, not easy to crack, prevents heavy metal ion
Release, have good biocompatibility.
Description of the drawings
By the way that the specification in subsequent embodiment of the present invention is combined with appended attached drawing, some sides of the invention
Face and/or other aspects will become apparent and are easier to understand, in the accompanying drawings：
Fig. 1 is the medical overlay film frame dimensional structure diagram of the present invention；
Fig. 2 is the structural schematic diagram of the portions the A amplification in Fig. 1；
Fig. 3 is the deployed configuration schematic diagram of the coating bracket of the present invention；
Fig. 4 is the structural schematic diagram of the coronary artery bracket conveyer of the present invention.
Specific implementation mode
Come to carry out description specific in detail to the exemplary embodiment of the present invention below with reference to appended attached drawing.
The present invention relates to a kind of overlay film frames, including overlay film frame and the hat being used cooperatively together with this kind of overlay film frame
Arteries and veins bracket conveyer, main application are acute to treat in the interventional medicine therapy field of human coronaries' stent-assisted angioplasty
Coronary arterial perforation and (or) acute coronary (tumor) rupture.
As depicted in figs. 1 and 2, this kind of medical overlay film frame 1 includes：Coating bracket 11 and be wrapped in holder periphery cover
Film unit 12, the coating bracket 11 are cylindrical type net metal holder, and expansion is in then square type, and on the surface of coating bracket 11
Coated with PBuMA macromolecules (Vinalac 5920) coating.Specifically, will be in metallic support using electronics crosslinking technology
The ultra-thin medical polymeric coating layer of nanometer grade thickness is first prepared on surface, and the interface of the coating and metallic support can be made to realize altogether
Valence link closes, and binding force is strong, interface stability, not easy to crack, prevents the release of heavy metal ion, has good blood compatibility
Property.
As shown in figure 3, the coating bracket 11 selects L605 cochromes as holder base material, in addition, the coating bracket
11 include a plurality of undaform submounts 13, and the wave crest of every submounts and the trough of another submounts are spaced by connecting rod 14
Connect to property.It is reticulated using laser engraving, the holder after engraving is surface-treated by pickling, polishing process,
With good biocompatibility.
Referring again to Fig. 1 and Fig. 2, the overlay film unit 12 is expanded PTFE (ePTFE) tubular film, ePTFE materials
Material has good biocompatibility and extremely low thrombotic, can be used for a variety of implantation products.EPTFE material has more
Microcellular structure can promote the endothelialization of biological tissue's ingrowing and cell to heal.EPTFE material can control it and expand
Axial retraction rate afterwards and radial extent rate.Axial retraction rate is less than 10%, after ensure that overlay film frame expansion, the axis of overlay film
To length stabilisation.Radial extent rate is 250% or so, it is ensured that overlay film can be held or expand with holder pressure, and be tied between holder
Resultant force is good.In addition, as shown in Fig. 2, before overlay film unit is wrapped on coating bracket, along the week of tubular film (i.e. film property layer)
It, later will be after folding to form umbrella folding structure 12a to equably repeatedly being folded and (preferably carrying out 3 foldings)
Tubular film be socketed and be fastened on the periphery of the coating bracket 11.Using this foldable structure, its overlay film frame is made to pre-install
Pressure uniform force when holding on a conveyor, make at holder by uniform external diameter, while when stent-expansion struts, overlay film part
Can uniform force, the distracted effect of tubular film is more preferable.
Particularly, exposure has a submounts and the company for connecting the submounts respectively at the both ends of the overlay film frame
Extension bar.Both overlay film unit, which had been not covered with first sub- support ring at holder both ends and first connecting rod, the purpose of the design, is,
When holder is by lesion or need to recall, after so that holder is first passed through in advance, overlay film part can be more smoothly by lesion, to ensure
Film will not tilt both ends end due to the obstruction of lesion, be detached with holder.
As shown in figure 4, the figure shows the structure of the coronary artery bracket conveyer of the present invention, this kind of coronary artery bracket conveyer is
A kind of special sacculus dilating catheter, percutaneous puncture and being run along blood vessel send sacculus dilating catheter to lesion vessels in art
In.The dilating sacculus that pressurizes after accurate positionin makes overlay film frame be unfolded and is retained in vascular lesion position.Finally ball is shunk in decompression
Capsule simultaneously takes out whole sacculus dilating catheter in vitro, to complete stent inserting.Specifically, this kind of coronary artery bracket conveyer
Including conveyer guide rod 2 and balloon expandable end 3, above-mentioned medical overlay film frame 1 is provided on the balloon expandable end 3.Tool
The mounting means of body is：When being combined overlay film frame with conveyer in such a way that pressure is held, while also holding membrane material by pressure
Power be more close to together with holder combination.
The description that the specific illustrative embodiment of the present invention is presented in front is for the purpose of illustration and description.Front
Description be not intended to become without missing, be not intended to limit the invention to disclosed precise forms, it is clear that root
All it is possible according to many change and variations of above-mentioned introduction.The exemplary embodiment was chosen and described for the sake of explain this hair
Bright certain principles and practical application, so that others skilled in the art can realize and utilize each of the present invention
Kind illustrative embodiments and its various selection forms and modification.The scope of the present invention be intended to by the appended claims and
Its equivalents is limited.
Claims (10)
1. a kind of medical overlay film frame, including：Support construction and overlay film unit, which is characterized in that the overlay film unit is outer layer
Overlay film, the outer film coating has been formed uniformly at least two multilayer folding structures in its circumferential direction and the outer film coating coats
In the support construction, and the outer film coating is the biological membrane material with good blood compatibility.
2. overlay film frame according to claim 1, which is characterized in that the number of plies of the multilayer folding structure is 3 layers.
3. overlay film frame according to claim 1 or 2, which is characterized in that the outer film coating is micron order micropore shape knot
Structure.
4. overlay film frame according to claim 1 or 2, which is characterized in that the outer film coating is nondegradable high score
Sub- material.
5. overlay film frame according to claim 4, which is characterized in that the nondegradable high molecular material is poly- for varicosity
Tetrafluoroethene.
6. medical overlay film frame according to claim 1 or 2, which is characterized in that the support construction is netted cylinder
Coating bracket, and be covered with polymeric coating layer on the surface of the coating bracket.
7. overlay film frame according to claim 6, which is characterized in that the material of the coating bracket is closed using L605 cobalt chromium
Gold is made.
8. medical overlay film frame according to claim 6, which is characterized in that the macromolecule on the coating bracket surface applies
The thickness of layer is nanometer grade thickness.
9. medical overlay film frame according to claim 6, which is characterized in that the macromolecule on the coating bracket surface applies
Layer is made of Vinalac 5920.
10. medical overlay film frame according to claim 1 or 2, which is characterized in that the both ends difference of the overlay film frame is sudden and violent
Dew has a strip carrier unit and the connecting rod for connecting the submounts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311952.9A CN108785754A (en) | 2017-05-05 | 2017-05-05 | Medical overlay film frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311952.9A CN108785754A (en) | 2017-05-05 | 2017-05-05 | Medical overlay film frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108785754A true CN108785754A (en) | 2018-11-13 |
Family
ID=64053699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710311952.9A Pending CN108785754A (en) | 2017-05-05 | 2017-05-05 | Medical overlay film frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108785754A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760073A (en) * | 2020-05-18 | 2020-10-13 | 武汉杨森生物技术有限公司 | Tectorial membrane implantation medical instrument and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009007057A1 (en) * | 2007-07-11 | 2009-01-15 | Acandis Gmbh & Co. Kg | Stent with a tubular lattice structure, and method for producing such a stent |
| CN101623218A (en) * | 2009-07-03 | 2010-01-13 | 先健科技(深圳)有限公司 | Blood vessel covered stent and manufacturing method thereof |
| CN102551931A (en) * | 2010-12-07 | 2012-07-11 | 曲乐丰 | Compound netty stent |
| US20150032199A1 (en) * | 1997-09-23 | 2015-01-29 | Design & Performance - Cyprus Limited | Non-thrombogenic stent jacket |
| CN205144807U (en) * | 2015-11-12 | 2016-04-13 | 辽宁垠艺生物科技股份有限公司 | Coronary tectorial membrane support |
-
2017
- 2017-05-05 CN CN201710311952.9A patent/CN108785754A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150032199A1 (en) * | 1997-09-23 | 2015-01-29 | Design & Performance - Cyprus Limited | Non-thrombogenic stent jacket |
| WO2009007057A1 (en) * | 2007-07-11 | 2009-01-15 | Acandis Gmbh & Co. Kg | Stent with a tubular lattice structure, and method for producing such a stent |
| CN101623218A (en) * | 2009-07-03 | 2010-01-13 | 先健科技(深圳)有限公司 | Blood vessel covered stent and manufacturing method thereof |
| CN102551931A (en) * | 2010-12-07 | 2012-07-11 | 曲乐丰 | Compound netty stent |
| CN205144807U (en) * | 2015-11-12 | 2016-04-13 | 辽宁垠艺生物科技股份有限公司 | Coronary tectorial membrane support |
Non-Patent Citations (1)
| Title |
|---|
| 颜红兵，赵汉军，宋莉等编译: "《欧洲冠状动脉血运重建治疗指南 2014年版》", 31 March 2015 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760073A (en) * | 2020-05-18 | 2020-10-13 | 武汉杨森生物技术有限公司 | Tectorial membrane implantation medical instrument and preparation method thereof |
| CN111760073B (en) * | 2020-05-18 | 2021-12-31 | 武汉杨森生物技术有限公司 | Tectorial membrane implantation medical instrument and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181113 |
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