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Micro catheter

A technology of micro-catheter and inner tube, applied in the field of micro-catheter, can solve the problems of long operation time and complicated operation, achieve the effect of convenient and simple operation and avoid long operation time

Active Publication Date: 2012-09-19
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, when the existing microcatheter is combined with the guide wire for interventional treatment, the operation is cumbersome, resulting in a long operation time

Method used

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0026] figure 1 A schematic structural diagram of a microcatheter provided in an embodiment of the present application.

[0027] Such as figure 1 As shown, the microcatheter includes: an inner tube 1, an outer tube 2, a first connector 3 and a second connector 4, wherein: the outer tube 2 is coated on the inner tube 1, and the first con...

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Abstract

The invention discloses a micro catheter, which comprises an inner tube, an outer tube, a first connecting piece and a second connecting piece, wherein the outer tube is sleeved outside the inner tube; one end of the outer tube is sealed with the inner tube; the first connecting piece is fixed at one end of the inner tube which is sealed with outer tube, and is communicated with the inner tube; and the second connecting piece is fixed on the side wall of the outer tube, and is communicated with a space between the inner tube and the outer tube. Compared with the prior art, the micro catheter has the advantages that: a guide wire is not required to be extracted during injection of a contrast agent into the micro catheter, injection can be completed by keeping the guide wire in a blood vessel, operation is convenient and simple, and the problem of long operation time caused by long guide wire penetration time is solved.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a microcatheter. Background technique [0002] Clinically, in the interventional treatment of vessels with chronic occlusive lesions or vascular dissection, in order to improve the success rate of guide wire crossing, it is usually necessary to use a microcatheter in conjunction with a guide wire. The guide wire has a strong penetrating ability, and the microcatheter can Provide additional support for the guide wire, and the two move forward alternately, greatly improving the ability of the guide wire to pass through the lesion. [0003] After the guide wire has successfully passed through, it is necessary to confirm that the guide wire is in the true lumen of the blood vessel before proceeding to the next step of treatment operations, such as balloon dilation, stent implantation and other technical means. It is an effective means of judging whether the guide w...

Claims

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Application Information

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IPC IPC(8): A61M25/00
Inventor 陈康宁谢志永李雨金巧蓉张久礼罗七一
Owner MICROPORT NEUROTECH SHANGHAI