Spherical double-cavity micro-catheter

Abstract

The invention discloses a spherical double-cavity micro-catheter, and belongs to PCI surgical instruments. The spherical double-cavity micro-catheter comprises a head end, a guide wire distribution mechanism and an operating catheter, wherein the operating catheter is a double-cavity catheter and is internally provided with a main cavity and a branch cavity; the main cavity penetrates through theguide wire distribution mechanism to communicate with the head end; the branch cavity communicates with the guide wire distribution mechanism; the guide wire distribution mechanism comprises a main channel communicating with the main cavity and a branch channel; one end of the branch channel communicates with the branch cavity, and the other end of the branch channel communicates with a distribution channel in the guide wire distribution mechanism; the distribution channel is provided with a branch guide wire outlet in the side wall of the guide wire distribution mechanism; and the included angle between the direction of the branch guide wire outlet and the branch channel is 60-120 degrees. The spherical double-cavity micro-catheter is simple in structure and novel in conception, and is low in operation difficulty, good in auxiliary effect, high in operation success rate and remarkable in effect when being applied to a reverse guide wire operation of a PCI branch lesion operation.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to PCI operation equipment, in particular to a spherical double-cavity microcatheter for assisting guide wires to enter branch blood vessels in PCI operations for bifurcation lesions. Background technique [0002] Coronary intervention is an important means of coronary heart disease treatment. In 2019, the total number of percutaneous coronary intervention (PCI) cases in mainland China reached more than 920,000. Among them, bifurcation lesions in coronary lesions account for 15-20% of the goals of coronary interventional therapy, and 14.6% of branch vessels in bifurcation lesions are difficult to access. If the branch vessels cannot be protected during interventional treatment, it is easy to cause branch vessels Blockage brings a lot of hidden dangers to the treatment of patients. For patients with heart failure, or branch vessels that play an important role, it can sometimes lead to...

AI Technical Summary

Problems solved by technology

This structure can provide a certain lateral bending ability for the guide wire passing through the branch tube, and provide some assistance for the guide wire to enter the branch vessel. However, for branch lesions with tricky angles, this structure still cannot provide effective auxiliary support. It can even further cause the guide wire to cause damage to the blood vessel at the branch lesion

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