Rapid loop forming catheter for filter auxiliary recycling

Abstract

The invention relates to the technical field of loop forming catheters, in particular to a rapid loop forming catheter for filter auxiliary recycling. The rapid loop forming catheter comprises a catheter main body, a guide sheath connector and a fixing sleeve, the guide sheath connector is fixed to one side of the outside of the catheter main body, an air delivering pipe is arranged in an adjusting cavity, a branch pipe is fixed to one side of the bottom end of the air delivering pipe, a push rod is fixed to the side, away from an air injection pipe, of a piston block, an adjusting mechanism is arranged at the other end of the air delivering pipe and comprises a fixing block, the outer side of the fixing block is sleeved with a sleeve block, and a first sliding block is in sliding connection with the interior of a first sliding groove. The problems that when a recycling hook on a filter is seriously attached to the wall of a vena cava, a snare is difficultly recycled conventionally, an operator needs to use a guide wire to penetrate through the filter, then the head end of the guide wire returns to be led out of the body through a sheath pipe, then the guide wire is folded in half below the filter and is used for looping the filter, then a recycling catheter is used for recycling, operation is complex and tedious, and the working efficiency of medical staff is reduced are effectively solved.

Description

technical field [0001] The invention relates to the technical field of loop-forming conduits, in particular to a rapid loop-forming conduit for auxiliary recovery of filters. Background technique [0002] The filter is divided into two types: recyclable and non-recyclable. It is a medical filter, mainly made of nickel-titanium wire or laser-cut nickel-titanium tube, which prevents thrombus from passing through the venous system. The filter is a percutaneous It is inserted into the inferior vena cava to capture the thrombus that falls off in the venous system and prevent the occurrence of fatal pulmonary embolism. When recovering, the formed catheter and loop technology are often used to hook the filter through the guide wire, and then insert the filter From the inside of the catheter, the filter is recovered, so it can be seen that the existing rapid loop forming catheter for auxiliary recovery of the filter basically meets the needs of people, but there are still some probl...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a rapid loop-forming catheter for filter assisted recovery, to solve the problem that it is difficult to recover the filter when the recovery hook on the filter is closely attached to the wall of the vena cava proposed in the background art

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