A kind of hook for removing ureteral stent tube

Abstract

The invention relates to a removing hook for a ureteral stent tube. The removing hook comprises a hooked head (2), a rod body (1) and a handle (6), wherein the hooked head (2) comprises an upper bending arc section (3) and a lower bending arc section (4), and the tangent line of the tail end of the hooked head (2) points to one side of the connection position of the upper bending arc section (3) and the lower bending arc section (4); an opening (5) is formed between the hooked head (2) and the rod body (1); the part, from the middle of the rod body (1) to the handle (6), of the rod body (1) is flat; a marker (7) is arranged on the handle (6); the marker (7) and the opening (5) are located in the same plane, or both arranged on the same side of the rod body (1), or arranged on two corresponding sides of the rod body (1). The removing hook is reasonable in design, safe and convenient to operate and high in success rate.

Description

technical field [0001] The invention relates to a medical device, in particular to a hook for removing stent tubes in the ureter. Background technique [0002] The clinical application of ureteral stents has gone through about 50 years. After it is implanted in the ureter, it can drain urine and prevent ureteral stenosis and adhesion blockage. At present, when removing the ureteral stent tube under the guidance of non-cystoscopy and non-imaging, the existing removal instruments that are often used include grasping forceps, foreign body forceps, hooks made of guide wires, braided hooks (crochet needles), etc. . [0003] However, it is removed by using existing instruments such as weaving hooks, but there are the following problems: [0004] 1. The front end of the removal instrument is sharp, which is very easy to damage the bladder mucosa; [0005] 2. Using conventional removal instruments, it is difficult to insert into the bladder smoothly, and it is easy to bring disc...

AI Technical Summary

Problems solved by technology

[0004] 1. The front end of the removal instrument is sharp, which is very easy to damage the bladder mucosa;

[0005] 2. Using conventional removal instruments, it is difficult to insert into the bladder smoothly, and it is easy to bring discomfort to the patient during the operation;

[0006] 3. The design of the front end of the removal device is unreasonable, and the hooking is difficult and the success rate is low;

[0007] 4. The removal device has poor toughness, which may easily damage the human mucous membrane, and is also prone to deformation and other situations, making it unusable;

[0008] 5. The removal instrument is too thin, the handle design is unreasonable, easy to slip, unstable to hold, difficult to hold, difficult to operate, easy to damage the human mucous membrane, and bring bad feelings to the patient;

[0009] 6. When hooking into the human body, it is difficult to know and grasp the front-end position of the removal instrument in real time, and it is difficult to aim and hook as soon as possible and other technical problems

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