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Balloon for dilating catheter

A technique for dilating catheters and balloons, which can be used in catheters, dilators, balloon catheters, etc., to solve problems such as coronary rupture and perforation, and occlusion of blood vessels at both ends of stents, to avoid vascular complications and improve surgical safety. Effect

Active Publication Date: 2019-02-22
GUANGDONG BROSMED MEDICAL DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual interventional surgery, it is found that the two ends of the routinely used balloon have a large diameter and need to protrude to the outside of the two ends of the stent. Therefore, after pressurization and expansion, it often causes dissection or vascular occlusion at both ends of the stent, and may even cause Abnormal inflation causes coronary artery rupture and perforation, which makes doctors uncertain when choosing a suitable balloon, and cannot choose the most suitable dilation balloon

Method used

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Examples

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Embodiment 1

[0019] A balloon for dilating catheters, comprising a balloon body 1, which forms an L-segment protrusion after the balloon body is inflated, and the L-segment protrusion is provided with sequentially stacked L5 segments 2, L4 segment 3, L3 segment 4, L2 segment 5, and L1 segment 6, the balloon is prepared by a balloon forming machine (BF208 type balloon forming machine of Heinz Schade GmbH of Heinz Schade GmbH in Germany), and the balloon is The molding material is placed into the balloon forming mold on the balloon forming machine. Then, the balloon is blow-molded under the conditions of temperature 90-180°C and pressure 10-50 atmospheres to make a semi-finished balloon, which is then forged with metal marks, welded at the far and near ends, welded at the exchange port, pleated, After crimping and shaping at 90-180°C, the finished balloon is made. During the pleating process, the calculation formula for the lamination area between adjacent sections is: the area of ​​the pre...

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Abstract

The invention discloses a balloon for a dilating catheter. The balloon comprises a balloon body, the humeral angle alpha of the two ends after the balloon body expands is 30 degrees, an L section protruding part is formed, and provided with an L5 section, an L4 section, an L3 section, an L2 section and an L1 section along the center axis of the balloon body from the tail end, the L5 section, the L4 section, the L3 section, the L2 section and the L1 section are stacked in sequence, and the calculation formula of the stacked area between every two adjacent sections is that the stacked area between the section and the last section is equal to the product of 0.354 and the surface area of the last section. By means of the balloon for the dilating catheter, the expanding diameter of the two endsof the balloon can be precisely controlled, the situation that the balloon is deformed when excessively pressurized is avoided, and thus the operation safety is improved.

Description

technical field [0001] The invention belongs to the technical field of balloon dilatation catheters, in particular to an improved balloon for dilation catheters. Background technique [0002] Atherosclerosis is the most common form of pathological changes in human vascular aging, which is characterized by thickening and hardening of the arterial wall, loss of elasticity, and narrowing of the lumen, mainly involving large and medium-sized arteries and coronary arteries. With the continuous progression of atherosclerosis, when the stenosis of the involved vessel lumen is greater than 75%, corresponding organ ischemia symptoms will appear. In order to effectively relieve the stenosis and improve the ischemic symptoms, it is currently the most effective treatment to physically relieve the stenosis by using a balloon to pre-dilate the stenotic lesion and then implanting a metal stent. After the stent is implanted, due to the different nature of the plaque in the lesion (soft pla...

Claims

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Application Information

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IPC IPC(8): A61F2/958A61M29/02A61M25/10
CPCA61F2/958A61M25/1002A61M29/02A61M2210/12A61M2210/005
Inventor 陈绍良
Owner GUANGDONG BROSMED MEDICAL DEVICE CO LTD
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