A kind of hook for removing ureteral stent tube

An internal stent and ureter technology, which is applied in the field of medical devices, can solve the problems of difficulty in aiming and hooking as soon as possible, unpleasant feeling of patients, and difficulty in hooking, etc., and achieves convenient aiming and fast, reducing medical costs and high hooking cost. Help rate effect

Active Publication Date: 2019-04-12
刘超颖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A kind of hook for removing ureteral stent tube
  • A kind of hook for removing ureteral stent tube
  • A kind of hook for removing ureteral stent tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] As attached to the manual figure 1 , 2 Shown in and 3, a ureteral internal stent tube removal hook, it includes a hook-shaped head 2, a rod body 1 and a handle 6, and the hook-shaped head 2, rod body 1 and handle 6 are all in the same plane; The hook-shaped head 2 includes an upper curved section 3 and a lower curved section 4, and the tangent line at the end of the hook-shaped head 2 points to the side where the upper curved section 3 and the lower curved section 4 are connected; 3 is in an inverted U shape and is connected to the rod body 1. The lower curved section 4 is distributed on the inner side between the rod body 1 and the upper curved section 3; the maximum transverse length L between the lower curved section 4 and the rod body 1 2 Compared with the maximum lateral length L between the upper curved section 3 and the rod body 1 1 It should be long; there is an opening between the hook-shaped head 2 and the rod body 1; the part of the rod body 1 between the m...

Embodiment 2

[0034] As attached to the manual Figure 4As shown, a ureteral internal stent tube removal hook includes a hook-shaped head 2, a rod body 1 and a handle 6, and the hook-shaped head 2, rod body 1 and handle 6 are all in the same plane; the hook-shaped The head 2 includes an upper curved section 3 and a lower curved section 4, and the tangent line of the hook-shaped head 2 points to the side where the upper curved section 3 and the lower curved section 4 are connected; the upper curved section 3 is in an inverted U shape and is connected to the rod body 1, the lower curved section 4 is distributed inside between the rod body 1 and the upper curved section 3; an opening is provided between the hook-shaped head 2 and the rod body 1; the middle part of the rod body 1 reaches the handle 6 The part of the rod body 1 between them is flat; the handle 6 is a closed ring, and a mark 7 is arranged on it; the mark 7 and the opening 5 are in the same plane, and are respectively arranged on ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/95
CPCA61F2/95A61F2/9517A61F2002/9511A61F2002/9528
Inventor 刘超颖胡华
Owner 刘超颖
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