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Film with serrated adhesive structure and laminated support thereof

A stent-graft, serrated technology, applied in the field of medical devices, can solve problems such as tearing and low adhesion, and achieve the effects of avoiding cracking, being easy to process, and improving tensile strength

Pending Publication Date: 2019-07-05
吉林省一汽总医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is an adhesive structure coating, but the adhesive force is small, and there is a risk of tearing during use

Method used

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  • Film with serrated adhesive structure and laminated support thereof
  • Film with serrated adhesive structure and laminated support thereof
  • Film with serrated adhesive structure and laminated support thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to Figure 1-Figure 4 :

[0034] A film with a zigzag bonding structure, which cuts out the required length and width dimensions from a certain thickness of the film before making a covered stent, and is characterized in that the zigzag adhesive is cut out at the bonding site before bonding. Join the edge.

[0035] figure 1 Schematic diagram of the bare metal stent structure. The stents used in the covered stents are either bare metal stents in the prior art, or drug-eluting stents, or non-metallic stents, or degradable stents.

[0036] figure 2 It is a structural schematic diagram of a stent graft in the prior art.

[0037] image 3 It is a structural schematic diagram (linear type) of film-covered adhesive joints in the prior art.

[0038] use Prepare covered stents from standard bare metal stents.

[0039] Calculate the film length: S=PI*D=3.14*3.5=11.0 mm.

[0040] The length is the longitudinal direction of the metal stent.

[0041] Lamination wi...

Embodiment 2

[0055] The content of this embodiment is the same as that of the first embodiment, except that the film 3 covers the inner surface of the bare metal stent 1 .

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Abstract

The invention discloses a film with serrated adhesive structure and belongs to the technical field of medical instruments. The film is characterized in that the film with serrated adhesive edges is applied to cover the surface (outer surface or inner surface, or both the outer surface and the inner surface) of a prior metal support, and the serrated adhesive edges are stuck together to form a tubecovering the metal support. The serrated adhesive structure of the film with the serrated adhesive structure provided herein is easy to manufacture and is easy to subject to size precision control; the serrated adhesive structure of the film with the serrated adhesive structure is easy to coat with an adhesive; a laminated support with the film having the serrated adhesive structure provides improved tensile strength for a laminated adhesive connector, and prevents cracking of the support in the expansion stage. The invention also discloses a laminated support with the film with the serratedadhesive structure.

Description

technical field [0001] The invention discloses a covering film with a zigzag bonding structure, which belongs to the technical field of medical instruments. At the same time, it discloses a covered stent with a zigzag bonding structure covered film. Background technique [0002] Common vascular diseases include aneurysms, ruptured blood vessels, perforated blood vessels, and narrowed blood vessels. Aneurysm is caused by the thinning of arterial wall due to disease, injury or congenital factors. Under the impact of blood flow, the weak blood vessel gradually protrudes outward into a circular shape, and then becomes an aneurysm, which will compress the surrounding tissue organ. Moreover, the continuous growth of the aneurysm may cause the rupture of the aneurysm blood vessel, acute bleeding, and life-threatening. [0003] Endovascular interventional therapy has the advantages of less trauma, less complications, high safety, and less pain for patients, and has gradually beco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/00A61F2/07
CPCA61F2/0077A61F2/07A61F2002/075A61F2240/002
Inventor 程海涛潘洪涛常影高鹏戴玮鑫王旭渤
Owner 吉林省一汽总医院
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