Stent implant driving mechanism and medical stent placement device

Abstract

The invention discloses a stent implant driving mechanism and a medical stent placement device. The stent implant driving mechanism comprises an outer pipe clamping mechanism suitable for clamping anouter pipe and a shaft displacement driving mechanism suitable for driving the outer pipe to move, wherein the outer pipe clamping mechanism comprises an outer sleeve pipe fixedly arranged on the outer pipe in a sleeving manner, and a pressing block connected with the outer sleeve pipe; the shaft displacement driving mechanism comprises a transmission assembly which cooperates with the pressing block to be suitable for driving the pressing block to move, and a power part which is connected with the transmission assembly; the power part is suitable for driving the transmission assembly to drivethe pressing block to move, and besides, simultaneous movement of the outer pipe is realized; the transmission assembly comprises an annular simultaneous structure and a driven rotating wheel and a driving rotating wheel which are in adapting with the annular simultaneous structure; and the driving rotating wheel and the power part are in adapting to be suitable for the power part to drive the driving rotating wheel to rotate. According to the medical stent placement device, the flexibility of the stent placement operation process can be improved.

Description

technical field

[0001] The invention relates to the technical field of medical devices, in particular to a driving mechanism of a stent implanter and a medical stent implantation device. Background technique

[0002] There are two main operation modes for stent release and implantation routinely used in the prior art: one is the traditional linear motion push type release stent operation mode, the doctor holds the instrument with one hand, and pulls the release device with the other hand to release the stent with linear motion. During the release process of the stent, the doctor needs to control two handles (fixed handle and moving handle) at the same time. , Excessive operating force will easily cause the outer tube to retreat far, and the stent will be released excessively, causing the stent to be released at the wrong position. Secondly, because the doctor operates with both hands, there is relative movement between the two hands, and the fixed position of the fixed handl...

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