Removal device for removing ureteral stent

Abstract

The invention discloses a removal device for removing an ureteral stent. The removal device includes an outer sheath tube, and also includes an obturator, wherein the obturator is inserted in the outer sheath tube, the obturator and the outer sheath tube are inserted into a bladder from the urethra after the obturator and the outer sheath tube are installed together, and the removal device also includes an inner core tube and a removal machine; the inner core tube and the removal machine are inserted into the outer sheath tube after joint installation is performed, a pull buckle is arranged atthe tail end of the inner core tube, one end of a pull wire is fixed to the front end of the inner core tube, and the other end of the pull wire is fixed to the pull buckle; the removal machine includes a silk body, the front end of the silk body passes through the inner core tube, and a cover body for grabbing the ureteral stent is installed at the front end of the silk body; and a control handle which is installed at the tail end of the inner core tube in a matched mode is installed at the tail end of the silk body. Through the removal device, the ureteral stent can be pulled out of the body without the visual assistance of a cystoscope, removal operation is not limited to operation in an operating room, and has little impact on the urethra during the removal operation; and the removaldevice has simple operation and use, and can be operated by a doctor or a nurse in clinic.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a pulling device for pulling out ureteral stents. Background technique [0002] Urology usually builds ureteral stents in the human ureter according to the needs of treatment. Among them, ureteral stents are also called double J tubes, J-shaped tubes, DJ tubes or pigtail tubes. After a period of indwelling, the ureteral stent needs to be pulled out from the human body through the urethra. At present, the common practice in the hospital is to send the patient to the operating room. The doctor inserts the cystoscope from the urethra to the bladder. After finding the ureteral stent through the eyepiece, insert surgical forceps into the working channel of the cystoscope, and then clamp the ureter. The stent is pulled out of the body. [0003] The above-mentioned traditional extubation method has the following problems: 1. It needs to extract the ureteral stent out of the body und...

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Problems solved by technology

[0003] The above-mentioned traditional extubation method has the following problems: 1. It needs to extract the ureteral stent out of the body under the visual assistance of the cystoscope, which is inconvenient to operate, and the operating environment is limited only in the operating room. The operating room is ten

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