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Vascular stent mounted with non penetrable slot or blind hole and its preparing method

A vascular stent, non-penetrating technology, applied in the field of medical devices, can solve the problems of thrombus formation and harm, achieve the effects of prolonging the release time, reducing the restenosis rate, and improving the adhesion ability

Inactive Publication Date: 2005-04-13
BEIJING AMSINO MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The shed drug block moves with the blood flow, which is likely to form a thrombus and cause new hazards

Method used

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  • Vascular stent mounted with non penetrable slot or blind hole and its preparing method
  • Vascular stent mounted with non penetrable slot or blind hole and its preparing method
  • Vascular stent mounted with non penetrable slot or blind hole and its preparing method

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with drawings and embodiments.

[0020] The stent structure of the present invention is as figure 1 As shown, it is composed of a straight main support bar 2 and a horseshoe-shaped connecting bar 3 connecting the main support bar. The outer surface of the middle part of the main support bar 2 has a non-penetrating groove 1 (or has a plurality of blind holes). A drug coating (not shown) may be embedded in the slot or hole.

[0021] The preparation method of stent of the present invention comprises the following steps:

[0022] 1) prepare (can adopt known method) or directly select the forming support with main support bar and connecting bar for use;

[0023] 2) Using laser processing, electron beam processing or chemical etching methods, open non-penetrating grooves or blind holes on the main support bar of the forming bracket;

[0024] 3) Coating a drug coating (specifically prepared by a known meth...

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Abstract

The present invention proposes one kind of blood vessel rack with blind slot or blind hole, and belongs to medical equipment technology. The blood vessel rack consists of straight main bearing bars and connecting bars, and the main bearing bars have blind slot or blind hole in the outer surface for embedding medicine coating. The blind slots or blind holes in the main bearing bars have depth not affecting the bearing capacity of the bars, the slots may be in different shapes, and the holes may be distributed regularly or irregularly. The blind slots or blind holes are made through laser machining, electric beam machining or chemical etching. The blood vessel rack of the present invention has improved medicine coating attaching capacity, prolonged medicine releasing period and less re-stenosis.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to the design of a stent implanted into a coronary artery in the operation for treating cardiovascular diseases. Background technique [0002] Among various operations for the treatment of cardiovascular diseases, percutaneous balloon transluminal coronary angioplasty (PTCA) is a new treatment that has developed rapidly in recent years. It uses a stent / balloon catheter cut from the femoral artery The delivery system, the applicant proposes a stent composed of a straight main support bar and a horseshoe-shaped connecting bar connected to the main support bar. Under the guidance of medical imaging equipment, the stent will be delivered to the lesion of the coronary artery together with the balloon catheter At the stenosis, the balloon is inflated and expanded to make the stent open the narrowed blood vessel, so as to achieve the purpose of treatment. [0003] Afte...

Claims

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Application Information

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IPC IPC(8): A61F2/00A61F2/91A61F2/915A61M29/00
CPCA61F2/915A61F2/88A61F2/91A61F2002/91508A61F2002/91525A61F2002/91541A61F2002/91558A61F2230/0054A61F2250/0068
Inventor 马晓意李正阳马丽娟
Owner BEIJING AMSINO MEDICAL
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