Microcatheter capable of being injected without pulling out a guide wire

Abstract

The invention relates to the technical field of medical apparatus and instruments, and discloses a microcatheter capable of being injected without pulling out a guide wire, wherein the microcatheter comprises a first catheter, and three second catheters are integrally injection-molded on one side of the first catheter; one end of the first catheter is arranged to be funnel-shaped, and one side of the first catheter is subjected to laser Tip treatment, so that after the micro-catheter enters the body of a patient, the first catheter can directly bypass the blood vessel of the patient and is in bolted connection through a round corner, the situation that the blood vessel or embolus of the patient is punctured is avoided, damage to blood vessels and emboli is reduced, and ability to pass obstacles is improved. By additionally arranging the infusion groove in the first catheter body and arranging the second Luer taper and the infusion tube to convey the contrast agent or the therapeutic agent, an operator can directly conduct injection without pulling out the guide wire when conveying the contrast agent or the therapeutic agent to a patient, the treatment time of a patient is shortened, and the use convenience of the microcatheter is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a microcatheter that can be injected without pulling out a guide wire. Background technique [0002] Microcatheters are suitable for aiding in the delivery of contrast and therapeutic agents to the peripheral vasculature, coronary vasculature, and vasculature of the nervous system. [0003] At present, when the microcatheter is in use, the end of the microcatheter that enters the patient’s body is flat-headed. When the flat-headed microcatheter contacts the blood vessel or embolus in the patient’s body, the flat-headed microcatheter is easy to damage the patient’s blood vessel or embolus. As a result, the patient's blood vessel is punctured or the embolus is punctured, which increases the difficulty of follow-up treatment, and when the microcatheter is delivering the contrast agent or therapeutic agent, the operator needs to move the guide wire inside the microcatheter fr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a microcatheter that can be injected without pulling out the guide wire, which has the advantages of non-invasiveness and injection without pulling out the guide wire, and solves the problem that the current microcatheter will damage the patient's blood vessels or emboli and the problem of infusion during injection. Problems requiring guidewire withdrawal for contrast or therapeutic agents

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