CN201481596U - Endovascular scaffold - Google Patents
Endovascular scaffold Download PDFInfo
- Publication number
- CN201481596U CN201481596U CN 200920175863 CN200920175863U CN201481596U CN 201481596 U CN201481596 U CN 201481596U CN 200920175863 CN200920175863 CN 200920175863 CN 200920175863 U CN200920175863 U CN 200920175863U CN 201481596 U CN201481596 U CN 201481596U
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- Prior art keywords
- support
- shaped
- lumen
- truncated cone
- unit
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- Expired - Lifetime
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Abstract
The utility model relates to an endovascular scaffold used for repairing blood vessel lesion, and belongs to an implantable medical appliance. The endovascular scaffold mainly comprises a plurality of Z-shaped single scaffolds 1, wherein the surface of the scaffold is covered with a membrane or a fabric 2; the single scaffolds are of frustum cone shapes or similar frustum cone shapes; and the single scaffolds are connected with one another through connectors 3. The endovascular scaffold can be applied to arterial repair, in particular to the repair of a tortuous part of a main artery.
Description
Technical field
This utility model relates to a kind of lumen of vessels inner support that is used to repair vascular lesion, belongs to the medical apparatus and instruments of human implantable.
Background technology
For the pathological changes that occurs in the human blood circulatory system, for example aneurysmal expansion or artery dissection pathological changes can be carried out repairing and treating by the method for placing overlay film frame in lumen of vessels.The overlay film frame great majority are straight type structures in the lumen of vessels of using clinically at present.For the pathological changes that occurs in the vascular bending position, especially when blood vessel diameter was big, for example at aortic arch, the flexible degree of straight type overlay film frame was still insufficient, and support knuckle in tube chamber may take place when bending.Trace it to its cause, be that present larger-diameter support still adopts the structure of Z-shaped single-unit support arranged in series, if the curved major of support is by regulating support joint height and internode apart from realizing.Change support joint height and internode apart from allowing the support bending to a certain extent, when degree of crook surpasses tolerance band, will form inside knuckle.Therefore, design does not form the curved cisoid support of major diameter of inside knuckle, can promote the safety of support, the range of application of expanded stent.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of lumen of vessels inner support rational in infrastructure, avoids occurring the support invagination when the crooked position that is applied to than trunk, improves safety and reliability that support uses.
The lumen of vessels inner support that this utility model is designed is mainly propped up by a plurality of Z-shaped single-units and is configured to, and the surface of support is covered with film or fabric, the single-unit support be shaped as truncated cone-shaped or class truncated cone-shaped, be connected by connector between the single-unit support.
In this utility model, the upper base area of single-unit support truncated cone-shaped is the 60%-99% of area of going to the bottom, and the height of truncated cone-shaped is the 20%-120% of diameter of going to the bottom.
In this utility model, a plurality of single-unit supports are with the equidirectional arranged in series, and set spacing is 0.1mm-20mm.
In this utility model, the connection between a plurality of single-unit supports can be a flexible connection body, or is rigidly connected body, and when employing was rigidly connected body, the connection of a plurality of single-unit supports can be a concentric arrangement, also can be off-center arrangement.
This utility model is when using, and is identical with the application principle of existing lumen of vessels inner support, at first support is loaded into delivery system, discharges support by delivery system at the target blood intracavity again.When support is released to the vascular bending position, support can be complied with vascular morphology and form bending, and invagination does not appear in the inner edge of crooked position, reduce because of the contingent caliber distortion of invagination and cross section when avoiding support crooked, thereby blood flow is unobstructed in the maintenance lumen of vessels, safety and reliability that support is used at the vascular bending position are improved, and the success rate of treatment is increased.
The advantage of the lumen of vessels inner support that this utility model is designed is:
When adopting truncated cone-shaped or class truncated cone-shaped stent support vascular bending position, support can form bending and invagination not take place, avoid the blood flow disorder and the blood vessel injury that may occur because of invagination, the safety and the reliability of support used in raising at the vascular bending position, enlarge the scope that the lumen of vessels inner support is used.
Description of drawings
Fig. 1 is the structure chart of a kind of lumen of vessels inner support of the present utility model: a joint single-unit support of 1-off-center arrangement, 2-film or fabric, 3-connector.
Fig. 2 is the structure chart of another kind of lumen of vessels inner support of the present utility model: a joint single-unit support of 1-concentric arrangement, 2-film or fabric, 3-connector.
The specific embodiment
Lumen of vessels inner support as shown in Figure 1 mainly is made of according to the off-center arrangement mode 4 single-unit supports 1, and rack surface is covered with film 2, and each saves support and is connected by flexible connection body 3.
The angle that this kind lumen of vessels inner support can adapt to curved blood vessel changes, and forms invagination when avoiding support crooked, takes into account localized reliability of support and motility, has both kept vascular patency, avoids blood vessel injury again, improves the success rate of stent in the treatment.
Another kind of lumen of vessels inner support as shown in Figure 2, the structural similarity of itself and embodiment 1, mainly constitute according to concentric arrangement by 4 joint single-unit supports 1, rack surface is covered with fabric 2, be connected by rigid connector 3 between the support, so that support both can produce the compliance bending at the curved blood vessel position, can avoid taking place invagination again, increase the safety and the reliability of support.
The foregoing description is that concrete scheme of the present utility model is given an example, and protection domain is limit according to claim.
Claims (4)
1. lumen of vessels inner support is mainly propped up by a plurality of Z-shaped single-units and is configured to, and the surface of support is covered with film or fabric, it is characterized in that: the single-unit support be shaped as truncated cone-shaped or class truncated cone-shaped, be connected by connector between the single-unit support.
2. lumen of vessels inner support according to claim 1, its feature also is: the upper base area of single-unit support truncated cone-shaped is the 60%-99% of area of going to the bottom, the height of truncated cone-shaped is the 20%-120% of diameter of going to the bottom.
3. lumen of vessels inner support according to claim 1, its feature also is: a plurality of single-unit supports are with the equidirectional arranged in series, and set spacing is 0.1mm-20mm.
4. lumen of vessels inner support according to claim 1, its feature also is: the connection between a plurality of single-unit supports can be a flexible connection body, or is rigidly connected body, when employing is rigidly connected body, the connection of a plurality of single-unit supports can be a concentric arrangement, also can be off-center arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920175863 CN201481596U (en) | 2009-08-31 | 2009-08-31 | Endovascular scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920175863 CN201481596U (en) | 2009-08-31 | 2009-08-31 | Endovascular scaffold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201481596U true CN201481596U (en) | 2010-05-26 |
Family
ID=42420489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920175863 Expired - Lifetime CN201481596U (en) | 2009-08-31 | 2009-08-31 | Endovascular scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201481596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287870A (en) * | 2014-10-10 | 2015-01-21 | 先健科技(深圳)有限公司 | Tubular cavity stent |
-
2009
- 2009-08-31 CN CN 200920175863 patent/CN201481596U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287870A (en) * | 2014-10-10 | 2015-01-21 | 先健科技(深圳)有限公司 | Tubular cavity stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Aortec Technology Co., Ltd. Assignor: Li Chao Contract record no.: 2011110000032 Denomination of utility model: Blood intra-cavity support Granted publication date: 20100526 License type: Exclusive License Record date: 20110525 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |
|
| CX01 | Expiry of patent term |