One-handed vascular stent delivery system and method of use thereof

Abstract

The invention discloses a one-handed vascular stent delivery system. The vascular stent delivery system includes a catheter unit and a delivery unit. The catheter unit is connected to the delivery unit and driven by the delivery unit. The delivery unit includes a housing with an adjustable mechanism, the adjusting mechanism is used to push the catheter unit, the adjusting mechanism has a locking mechanism and a ball track, and the side wall of the delivery end of the housing is provided with a cleaning port. Applying the delivery system of the present invention, the delivery unit is operated with one hand, which is convenient and fast, and the other hand can be released, only one hand is limited, and other operations can be performed during the medical process; the adjustment mechanism has a locking function and can perform stepless locking , the connecting pipe can be locked at any time to stop the inner pipe conveying; the guide rail adopts a ball track, the sliding button slides smoothly and stably, and the conveying is smooth and labor-saving; the cleaning head is located on the side wall of the conveying end, that is, it is set at the front end of the conveying unit, which is convenient for cleaning operation. The structure is simplified, and there is no need to add a long guide pipe.

Description

technical field [0001] The invention relates to a one-handed vascular stent delivery system and a method for using the same, belonging to the technical field of minimally invasive medical devices. Background technique [0002] Peripheral vascular surgery is a traditional method for treating peripheral vascular stenosis. Compared with traditional peripheral vascular surgery, stent therapy is a minimally invasive interventional operation with less trauma, fewer complications, and better results. It has become the current treatment for peripheral vascular stenosis. main method. [0003] Implanting a vascular stent into the body requires the use of a delivery system. In the prior art, a hollow inner tube and an outer tube are generally used. The hollow part of the inner tube is convenient for the guide wire to pass through the tube during the operation. Between the outer tubes; during surgery, the guide wire guides the catheter assembly of the delivery system to the surgical si...

AI Technical Summary

Problems solved by technology

[0004] Due to the limitation of the length of the vascular stent, the delivery stroke of the delivery system is longer, the structure of the delivery system is limited, and it is not convenient for the medical staff to operate the operation, requiring two-handed operation, which is prone to tremor and deviation during the delivery process of the longer delivery stroke. In severe cases, the vascular stent may even shift, which will affect the normal progress of the operation.

[0005] The conveying system will suspend the conveying operation during the conveying process. At this time, the operator needs to hold the conveying system, which is extremely inconvenient. However, the conveying system in the prior art has two-level pause buttons, but during the operation, the pause operation may occur at any time. Level pause button doesn't meet needs

[0006] There is a certain resistance during the delivery of the vascular stent, and there is also a certain amount of friction in the pushing mechanism of the delivery system, which leads to a large push force required for the delivery system, which is not convenient for medical staff to operate, and the push strength is relatively high, and due to the push force If it is too large, it will easily lead to unstable delivery of the stent, tremor and deviation, etc. In severe cases, it may even cause deviation of the stent, which will affect the normal progress of the operation

[0007] The surface of the delivery system is relatively smooth, especially when the medical staff wear gloves, it is particularly inconvenient to operate, and it is prone to slippage, resulting in the displacement of the vascular stent and endangering the life safety of the patient

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