Magnetic catheter with trawl wire capture capability

Abstract

The invention discloses a magnetic catheter with trawl wire capture capability. A magnetic part is arranged on the magnetic catheter close to the head of the magnetic catheter, and a plurality of barbs are arranged on the outer surface of the magnetic part, and one end of each barb is connected with the magnetic catheter, while the other end of each barb is arranged toward the tail part of the magnetic catheter. When the magnetic catheter provided by the invention is used, the magnetic catheter is fed into the anterior urethra of a patient by adopting conventional catheter retaining operation; and after a trawl which can be adsorbed by a magnet is adsorbed by the magnetic part, the magnetic catheter is pulled outward, and the trawl is hooked by the barbs arranged on the outer surface of the magnetic part to prevent the trawl from slipping away from the magnetic catheter, so that the success rate of extracting the trawl out of the urethral orifice is increased, and the aim of quickly pulling out a catheter stent tube which is implanted in a patient body and provided with a trawl can be achieved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a magnetic urinary catheter with the ability to capture mesh wires. Background technique [0002] Ureteral stent is a medical device used in upper urinary tract operations such as kidneys and ureters to maintain drainage of the upper urinary tract. The traditional ureteral stent needs to be removed by cystoscope, which brings great pain to the patient. Therefore, those skilled in the art have developed a ureteral stent device to reduce the pain and discomfort brought to the patient during the process of removing the ureteral stent tube. The ureteral stent device includes a ureteral stent tube provided with a trawl and a catheter provided with a magnetic part, please refer to figure 1 and figure 2 The ureteral stent includes a stent body 01, a pull wire 02 connected to one end of the stent body 01, and a trawl 03 fixedly connected to the free end of the pull wire 0...

AI Technical Summary

Problems solved by technology

However, after the trawl 03 is positioned by the magnetic part 0411, the trawl 03 needs to be embedded in the trawl fixing cavity by the cooperation of the inner core 041 and the outer sheath 042, and then the trawl 03 is pulled; The outer surface of the trawl net 03 is very smooth, and at the same time, the above-mentioned operation is carried out in the bladder of the patient, and the residual urine in the bladder plays a certain lubricating effect, so that the trawl net 03 is easy to slip off from the catheter. "Embedding into the trawl fixed cavity" is not easy to achieve, and the operator needs to try many times to succeed

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