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Angiography catheter

A catheter and radiography technology, applied in the direction of catheters, guide wires, hypodermic injection devices, etc., can solve the problems of easy fracture of the fusion joint between the distal tube and the head end tube, and the fixation effect cannot meet the requirements, so as to reduce resistance, Avoid breakage and ensure cleaning effect

Inactive Publication Date: 2020-12-25
ENOVE PRECISION PLASTICS CATHETER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing radiography catheters, the fixing effect of the distal tube and the head end at the fusion joint is often not up to the requirement, resulting in easy fracture of the fusion joint between the distal tube and the head end tube, which poses a serious safety hazard

Method used

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Embodiment Construction

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] It should be noted that when an element is referred to as being “fixed”, “installed”, “connected” or “disposed” with another element, it may be directly on the other element or indirectly on the other element. It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" The orientation or positional relationship indicated by , "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present inv...

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Abstract

The present invention discloses an angiography catheter. The angiography catheter comprises a catheter head assembly, a connecting tube assembly and an injection assembly; the catheter head assembly comprises a catheter head, an inserting hole is formed in the catheter head, a first sealing ring is arranged in the inserting hole, an initial state of the first sealing ring is a closed state and used for blocking the inserting hole, two liquid outlet holes are symmetrically formed in two sides of the inserting hole, one-way flowing mechanisms are arranged in the two liquid outlet holes correspondingly, and the one-way flowing mechanisms are used for preventing blood in blood vessels from flowing back into the inserting hole. By arranging the first sealing ring, the catheter head assembly enters human body, blood does not enter into a connecting tube through the first sealing ring, meanwhile, a steel wire is guaranteed to penetrate through the catheter head to enter the connecting tube, so that the steel wire can be drawn out, meanwhile, when the steel wire is not inserted, the first sealing ring can be automatically sealed, and the inserting hole can be isolated from the outside.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a contrast catheter. Background technique [0002] At present, contrast catheters in medical devices are widely used because they can smoothly introduce contrast agents into blood vessels, produce contrast effects, and effectively avoid damage to blood vessels. [0003] Angiography catheter is a long polymer catheter, which is a key device for percutaneous angiography and belongs to diagnostic catheters. Its main function is to smoothly introduce the contrast agent into the blood vessel to produce a contrast effect. Therefore, the distal tube of the contrast catheter needs to have excellent shape memory, flexibility and X-ray detectability, and the head end tube has good flexibility, which can effectively Avoid damage to the blood vessel, and the welded part of the distal tube and the tip tube must be fixed well to avoid breaking the welded part of the distal tube and ...

Claims

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Application Information

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IPC IPC(8): A61M5/00A61M5/142A61M5/36A61M25/00A61M25/09
CPCA61M5/007A61M5/14216A61M5/36A61M25/0068A61M25/0074A61M25/0075A61M25/09A61M2025/0076
Inventor 秦晓鹏魏先锋
Owner ENOVE PRECISION PLASTICS CATHETER
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