Human body endoluminal stent implanting device capable of being recycled midway

Abstract

The invention relates to a human body endoluminal stent implanting device capable of being recycled midway. The human body endoluminal stent implanting device capable of being recycled midway comprises an outer tube, a middle tube, an inner tube and a guiding head and a stent which are arranged at a far end of the inner tube; handles are arranged on the outer rube, the middle tube and the inner tube; the outer tube, the middle tube and the inner tube can be in cup joint and can slide relatively. The human body endoluminal stent implanting device capable of being recycled midway is characterized in that an insurance wire which drags a stent near end to be fixed at a middle tube far end is arranged inside the middle tube; the middle tube handle is provided with a wire outlet hole which is communicated with an inner chamber of the middle tube; the insurance wire penetrates a stent near end mesh and is folded in two portions, runs through the interior of the middle tube and the exterior of the inner tube along the axial direction of the middle tube and penetrates out from a wire outlet hole of the middle tube handle. The human body endoluminal stent implanting device capable of being recycled midway has the advantages of allowing withdrawing into the implanting device to be released again before the stent is not completely released; avoiding complex operation of adjusting or taking out the stent to release the stent again caused by offset of the stent release position, relieving patient pains and substantially reducing the difficulty of stent placement operations; enabling the stent implantation to be simple and rapid; creating advantage conditions for wide development of the stent implantation.

Description

technical field [0001] The invention belongs to the technical field of clinical medical devices, and in particular relates to a human body lumen stent inserter which can be recovered halfway for the purpose of supporting the lumen of the human body and keeping the lumen unobstructed. Background technique [0002] Human intraluminal stent is a common treatment method for the clinical treatment of luminal stenosis and obstruction caused by benign and malignant diseases of esophagus, stomach, tracheobronchus, intestinal tract, biliary tract, prostate and blood vessels. The stent implanter of the prior art such as the "esophagus stent implanter" whose patent number is 95239801.X and the "endoscopic direct vision stent implanter" whose patent number is 99220256. The structure is sleeved and relatively sliding, but once the stent is partially released, it is fixed in the lumen and it is difficult to adjust the position, let alone retract the stent into the lumen of the implanter a...

AI Technical Summary

Problems solved by technology

[0004] The use of this stent implanter can solve the problem that once the currently used stent implanter is partially released, the stent is fixed in the lumen and it is difficult to adjust the position, and the problem that the stent cannot be retracted into the lumen of the implanter and then released again can be ensured by the safety wire. After the stent is released to a certain extent, it can still retract the lumen of the implanter, adjust the position and release it again, avoiding the complicated operation of readjusting or even taking out the stent and releasing it again after the release position is shifted

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