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microcatheter system

A microcatheter and catheter technology, which is applied in catheters, dialysis systems, guide wires, etc., can solve the problems of poor penetration and flexibility, tortuous and angled microchannels, etc., and achieve good pushability and high pressure resistance Effect

Active Publication Date: 2021-03-05
SUZHOU HENRUI DISHENG MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current microcatheters still have some defects. When the retrograde guide wire intervenes, because the reverse part of the microchannel is seriously tortuous and angled, especially the epicardial channel is more tortuous, the passing ability is limited, and some use full coil springs. structure, but due to its large outer diameter and all-metal braided rod structure, the penetration and flexibility are not good. Therefore, there is an urgent need for a Microcatheter with good shape-retaining tip

Method used

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Embodiment

[0025] Specifically, as attached figure 1 As shown, the microcatheter system includes a microcatheter, and the microcatheter includes a catheter adapter 1, and the catheter adapter 1 is provided with a diffusion stress tube 2, and the catheter body passes through the diffusion stress tube 2 and is connected to the catheter adapter 1 through a connector. The body includes a tube body braided section 4, a tube body non-woven section 5 and a tube body tip 6.

[0026] The microcatheter system also includes a straight tube 3, which is set on the proximal end of the catheter body. The straight tube 3 is not fixedly bonded to the catheter body and can move freely. When in use, move the straight tube 3 to the tube body The tip 6 guides the tip 6 of the tube body straight, and after the tip 6 of the tube body enters the lumen (intravascular access), the straight tube 3 is torn to peel off the straight tube 3 from the catheter body.

[0027] According to the outer diameter of the micro...

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Abstract

Disclosed is a microcatheter system. When the microcatheter system of the present invention is in use, the guide wire can penetrate into the inner cavity of the catheter, and after the auxiliary catheter enters the target position in the blood vessel, the guide wire is withdrawn from the body, and the catheter is used to transport embolic materials and drugs. Or the channel of contrast agent stays in the vascular lumen, the Luer connector at the proximal end of the microcatheter is connected to the syringe, and the embolic material, drug or contrast agent is injected into the target blood vessel through the catheter to achieve the function of diagnosis or treatment, with good push Sex, flexibility, high pressure resistance.

Description

technical field [0001] The invention relates to the field of medical devices, more specifically, to a microcatheter system, a testing method, a cleaning method and a preparation process thereof. Background technique [0002] Microcatheters have been widely used in complex lesions such as total occlusion or subtotal occlusion lesions, bifurcation lesions, severely calcified lesions, and severely distorted lesions in coronary interventional therapy. Microcatheters can reduce the complexity of interventional operations for the above-mentioned lesions and improve the success rate. At the same time, by reducing the amount of contrast medium used and the risk of vessel rupture during interventional treatment, and reducing the risk of patients in complex interventional treatment, microcatheters have become an important device for interventional surgery. [0003] Microcatheter is a microcatheter with a very small outer diameter, which has excellent ability to pass through collateral...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/00A61M25/09A61M1/14A61M25/06A61M25/01A61L29/06A61L29/04A61L29/02B08B3/08B08B3/12B08B9/023B08B9/032B65D71/00B65D73/00B65D77/00G01L5/00G01M13/00
CPCA61M25/0009A61M25/0043A61M25/0045A61M2025/0056
Inventor 朱晓瑛
Owner SUZHOU HENRUI DISHENG MEDICAL CO LTD
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