Interventional catheter with side hole, and coaxial micro-catheter intubation method going through side hole

Abstract

The invention discloses an interventional catheter with a side hole, and a coaxial micro-catheter intubation method going through the side hole. The interventional catheter comprises a Cobral catheter with the side hole, a hepatic artery RH catheter with the side hole or an H1 catheter with the side hole. The Cobral catheter with the side hole is used for diaphragm artery hyper-selective intubation originating from the initial position of a renal artery; the hepatic artery RH catheter with the side hole is used for hyper-selective intubation of the phrenic artery, the left stomach artery, the left liver artery and the like from the initial section of the celiac trunk artery; and the H1 catheter with the side hole is used for hyper-selective intubation of an internal thoracic artery originating from a subclavian artery and a bronchial artery with an ectopic opening at the internal thoracic artery. The problem that the target blood vessel with the opening in the starting section of the branch blood vessel is difficult to intubate is solved, the treatment time is shortened, the treatment effect is improved, and a doctor and a patient are prevented from making contact with a large amount of ionizing radiation. The interventional catheter is simple in structure, reasonable in design, convenient to operate and suitable for clinical general popularization and application.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an intervention catheter with a side hole and a coaxial microcatheter intubation method through the side hole. Background technique [0002] Interventional diagnosis and treatment through vascular access is an important content of interventional medicine, and its clinical application is very extensive, such as chemoembolization for liver cancer, bronchial artery embolization for hemoptysis, cerebral angiography, arterial infusion chemotherapy for gastric cancer, adrenal venous blood collection, etc. The technical point of vascular intervention is to establish a catheter channel from the body surface to the target blood vessel. Operations such as radiography, drug filling, embolization, and sampling can be performed through this channel. [0003] Catheter access is usually established by puncturing the femoral artery in the groin area, followed by catheterizat...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above problems in the prior art, that is, to solve the problem of difficult intubation of the target vessel opening at the initial section of the primary branch, the purpose of the present invention is to provide a guiding catheter with a side hole, and (use micro Catheter) a new method of superselective intubation through the side hole of the guiding catheter

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