CN104887279A - Congenital heart disease transcatheter closure device - Google Patents
Congenital heart disease transcatheter closure device Download PDFInfo
- Publication number
- CN104887279A CN104887279A CN201510306024.4A CN201510306024A CN104887279A CN 104887279 A CN104887279 A CN 104887279A CN 201510306024 A CN201510306024 A CN 201510306024A CN 104887279 A CN104887279 A CN 104887279A
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- Prior art keywords
- heart disease
- shaped stent
- congenital heart
- closure device
- drum support
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/06—Titanium or titanium 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/34—Macromolecular materials
-
- 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
- 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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00592—Elastic or resilient implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00606—Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00836—Material properties corrosion-resistant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
-
- 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
-
- 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
- A61L2400/16—Materials with shape-memory or superelastic properties
-
- 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
- A61L2420/00—Materials or methods for coatings medical devices
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Epidemiology (AREA)
- Chemical & Material Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Dermatology (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Medicinal Chemistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cardiology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a congenital heart disease transcatheter closure device. The congenital heart disease transcatheter closure device comprises an H-shaped stent, wherein the H-shaped stent is woven by a nickel-titanium alloy screen mesh of which the diameter ranges from 0.0031-0.0033 cun; a plurality of convex particles are respectively arranged on two outer sides of each of the upper end and the lower end of the H-shaped stent; the H-shaped stent is filled with polyester fibers; a layer of polyurethane foam coats metal wires of the H-shaped stent; preferably, the H-shaped stent is made of TiNi shape memory alloy; the diameter of the H-shaped stent ranges from 0.0031 to 0.0035 optionally; and preferably, a layer of polyacrylic ester adhesive coats the metal wires of the H-shaped stent. On the basis of an animal test, the metal toxic and side effect of the congenital heart disease transcatheter closure device is much lower than that of the traditional congenital heart disease transcatheter closure device, chronic injury and mechanical irritation on blood vessels are quite low, and side effects such as cardiac insufficiency and arrhythmia of patients do not exist.
Description
Technical field
The invention belongs to technical field of medical instruments, particularly relate to a kind of occlusive device for treating septal defect of congenital heart disease.
Background technology
Patent ductus arteriosus, atrial septal defect and ventricular septal defect are the more common congenital heart diseases of children's, and this three approximately account for 80% of whole congenital heart disease.Before the seventies, stifled means of closing mainly rely on surgical operation; At the mid-1970s, researcher starts to design and tried out new non-ly opened the method that breast closes ductus arteriosus and atrial septal defect and succeeds, and over more than 20 year, successively has the multiple stifled device that closes to be applicable to animal and clinical trial all achieves very large success; What use comparative maturity at present clinically is that mushroom or the stifled of double plate umbrella shape close device, its operation is more convenient, but because this device metal content is excessive, and metal directly contacts with body, metal long-term toxic and side effects is in vivo difficult to determine, metal is really up to the mark easily causes chronic injury to blood vessel and mechanical irritation, thus causes the side effect such as long-term cardiac insufficiency, arrhythmia.
Summary of the invention
The present invention is exactly for the problems referred to above, and propose a kind occlusive device for treating septal defect of congenital heart disease, this device toxic and side effects is minimum, uses very safe.
For reaching above-mentioned technical purpose, present invention employs a kind of occlusive device for treating septal defect of congenital heart disease, comprise the drum support of being worked out by the nickel-cemented alloy filament net of diameter between 0.0031-0.0033 cun, this upper and lower two of drum support two outside be equipped with some convex grains, in drum support, be filled with dacron, be coated with one deck polyurethane foam at the tinsel of drum support.
Preferably, described drum support material therefor is TiNi marmem, and its diameter is the arbitrary dimension between 0.0031-0.0035 cun.
Preferably, the described tinsel at drum support is coated with one deck polyacrylic acid ester gum.
One deck degradable biocompatibility macromolecule material due to the tinsel outer cladding at support, degradable biocompatibility macromolecule material is contacted with body tissue, avoid the tinsel damage to body that causes really up to the mark and stimulation, tinsel and tissue are isolated by macromolecular material, thus isolated the toxicity of metal itself, reduce and stopped plugging device long-term toxic and side effects in vivo even completely, and the structure of drum metal rack in turn ensure that the mechanical strength of plugging device.
The present invention shows through animal experiment, and compared with traditional occlusive device for treating septal defect of congenital heart disease, its metallic poison side effect reduces greatly, to the chronic injury of blood vessel and mechanical irritation very little, does not have the side effect such as the complete and arrhythmia of the routine Cardiac Function of Patients of appearance one.
Accompanying drawing explanation
Shown in Fig. 1 is surface structure schematic diagram of the present invention;
Wherein, 1, drum support; 2, convex grain; 3, dacron; 4, polyurethane foam.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
As shown in Figure 1, a kind of occlusive device for treating septal defect of congenital heart disease, comprise the drum support 1 of being worked out at the nickel-cemented alloy filament net between 0.0031-0.0033 cun by diameter, this drum support about 1 two two outside be equipped with some convex grains 2, this convex grain can increase and the contact of body tissue; In drum support 1, be filled with dacron 3, be coated with one deck polyurethane foam 4 at the tinsel of drum support 1.
In the present invention, preferred drum support 1 material therefor is TiNi marmem, and its diameter is the arbitrary dimension between 0.0031-0.0035 cun.This alloy has elastic performance, its fatigue durability and corrosion resistance are also better than rustless steel greatly, adopt TiNi marmem to be inner support, its diameter is drawn little and reduce the content of TiNi marmem in whole device as far as possible under the prerequisite ensureing whole support intensity.To reduce the toxic and side effects of metal as far as possible.
Preferably, the described tinsel at drum support is coated with one deck polyacrylic acid ester gum.
One deck polyacrylic acid ester gum or polyurethane foam 4 due to the tinsel outer cladding at support, degradable biocompatibility macromolecule material, degradable biocompatibility macromolecule material is contacted with body tissue, avoid the tinsel damage to body that causes really up to the mark and stimulation, tinsel and tissue are isolated by macromolecular material, thus isolated the toxicity of metal itself, reduce and stopped plugging device long-term toxic and side effects in vivo even completely, and the structure of drum metal rack in turn ensure that the mechanical strength of plugging device.
Claims (3)
1. an occlusive device for treating septal defect of congenital heart disease, it is characterized in that, comprise the drum support of being worked out by the nickel-cemented alloy filament net of diameter between 0.0031-0.0033 cun, this upper and lower two of drum support two outside be equipped with some convex grains, in drum support, be filled with dacron, be coated with one deck polyurethane foam at the tinsel of drum support.
2. a kind of occlusive device for treating septal defect of congenital heart disease as claimed in claim 1, is characterized in that, described drum support material therefor is TiNi marmem, and its diameter is the arbitrary dimension between 0.0031-0.0035 cun.
3. a kind of occlusive device for treating septal defect of congenital heart disease as claimed in claim 1, is characterized in that, the described tinsel at drum support is coated with one deck polyacrylic acid ester gum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510306024.4A CN104887279A (en) | 2015-06-08 | 2015-06-08 | Congenital heart disease transcatheter closure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510306024.4A CN104887279A (en) | 2015-06-08 | 2015-06-08 | Congenital heart disease transcatheter closure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104887279A true CN104887279A (en) | 2015-09-09 |
Family
ID=54020550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510306024.4A Pending CN104887279A (en) | 2015-06-08 | 2015-06-08 | Congenital heart disease transcatheter closure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104887279A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612072A (en) * | 2017-12-21 | 2019-12-24 | 得克萨斯农业及机械体系综合大学 | Vascular prosthesis for leak protection in endovascular aneurysm repair |
| CN112535510A (en) * | 2020-12-25 | 2021-03-23 | 上海拓舜医疗科技有限公司 | Bronchus plugging device system with foam-shaped matrix memory alloy frame structure |
-
2015
- 2015-06-08 CN CN201510306024.4A patent/CN104887279A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612072A (en) * | 2017-12-21 | 2019-12-24 | 得克萨斯农业及机械体系综合大学 | Vascular prosthesis for leak protection in endovascular aneurysm repair |
| US11338070B2 (en) | 2017-12-21 | 2022-05-24 | The Texas A&M University System | Vascular prosthesis for leak prevention during endovascular aneurysm repair |
| US11839702B2 (en) | 2017-12-21 | 2023-12-12 | The Texas A&M University System | Vascular prosthesis for leak prevention during endovascular aneurysm repair |
| CN112535510A (en) * | 2020-12-25 | 2021-03-23 | 上海拓舜医疗科技有限公司 | Bronchus plugging device system with foam-shaped matrix memory alloy frame structure |
| CN112535510B (en) * | 2020-12-25 | 2021-10-26 | 上海拓舜医疗科技有限公司 | Bronchus plugging device system with foam-shaped matrix memory alloy frame structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150909 |
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| WD01 | Invention patent application deemed withdrawn after publication |