Disposable ureteral catheterization stent tube

A technology for stent tubes and ureters, applied in the direction of catheters, wound drainage devices, etc., to reduce friction, reduce irritation, and improve comfort

Inactive Publication Date: 2020-01-24
深圳泰睿仕医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the current ureteral catheterization stent has been continuously improved in the preparation process or materials, there are still many patients who have indwelling ureteral catheterization stent in clinic and experience pain in urination, gross hematuria, and urination due to foreign bodies irritating the ureter and bladder. Low back pain and other symptoms, therefore, it is necessary to improve the ureteral catheter stent to further reduce the incidence of the above discomfort symptoms and improve the comfort and surgical treatment effect of patients after indwelling ureteral catheter stent

Method used

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  • Disposable ureteral catheterization stent tube
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Disposable ureteral catheterization stent tube, including kidney end, stent tube body and bladder end, the hardness of the ureteral catheterization stent tube is sequentially reduced by the kidney end, stent tube body and bladder end, wherein, the kidney end is made of polyurethane , its overall Shore hardness is 65A; the stent body is made of 4 different hardness polyurethane segments, and the hardness of the stent body is 55A, 50A from the Shore hardness near the kidney end to the bladder end. , 45A, 40A, the bladder end is made of polyurethane as a whole, and its overall Shore hardness is 35A, the kidney end and the bladder end are respectively bent in opposite directions to form a circular arc, and the kidney end and the bladder end are provided with The outer diameter of the ureteral catheterization stent decreases sequentially from the kidney end, the stent body and the bladder end, which can reduce the stimulation to the bladder.

Embodiment 2

[0035]Disposable ureteral catheterization stent tube, including kidney end, stent tube body and bladder end, the hardness of the ureteral catheterization stent tube is sequentially reduced by the kidney end, stent tube body and bladder end, wherein, the kidney end is made of polyurethane , its overall Shore hardness is 50A; the stent body is made of 3 different hardness polyurethane segments, and the hardness of the stent body is 45A, 35A from the Shore hardness near the kidney end to the bladder end. , 30A, the bladder end is made of polyurethane as a whole, and its overall Shore hardness is 20A, the kidney end and the bladder end are respectively bent in opposite directions to form a circular arc, and the kidney end and the bladder end are provided with Urine enters and exits the through holes of the stent tube body; the outer diameter of the ureter catheterization stent tube is sequentially reduced from the kidney end, the stent tube body and the bladder end, which can reduc...

Embodiment 3

[0037] Disposable ureteral catheterization stent tube, including kidney end, stent tube body and bladder end, the hardness of the ureteral catheterization stent tube is sequentially reduced by the kidney end, stent tube body and bladder end, wherein, the kidney end is made of polyurethane , its overall Shore hardness is 45A; the stent tube body is made of 3 different hardness polyurethane segments, and the hardness of the stent tube body is 30A, 28A from the Shore hardness near the kidney end to the bladder end. , 25A, the bladder end is made of polyurethane as a whole, and its overall Shore hardness is 20A, the kidney end and the bladder end are respectively bent in opposite directions to form a circular arc, and the kidney end and the bladder end are provided with Urine enters and exits the through holes of the stent tube body; the outer diameter of the ureter catheterization stent tube is sequentially reduced from the kidney end, the stent tube body and the bladder end, whic...

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PUM

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Abstract

The invention discloses a disposable ureteral catheterization stent tube. The ureter catheterization stent tube comprises a kidney end, a stent tube body and a bladder end. The hardness of the ureteral catheterization stent tube is sequentially reduced from the kidney end, the stent tube body and the bladder end, the kidney end and the bladder end are bent in opposite directions to form circular arcs respectively, and the kidney end and the bladder end are each provided with a through hole for urine to enter and exit from the stent tube body. The friction between the bladder end arc-shaped structure and the bladder mucous membrane can be reduced, the stimulation to the bladder is reduced, and the comfort level of a patient is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a disposable ureteral catheterization stent tube. Background technique [0002] Disposable ureteral catheterization stents have become an indispensable part of urology and are widely used in clinical practice, including: (1) After open surgery, such as ureterolithotomy, pyeloplasty, and ureterobladder reimplantation; ( 2) Hydronephrosis caused by benign or malignant obstruction; (3) ureteral injury; (4) intractable renal colic caused by malignant attack of ureteral calculi; (5) post-pregnancy hydronephrosis, post-pregnancy renal colic; (6) After intracavitary lithotripsy, etc. Indwelling ureteral catheterization stent can maintain smooth upper urinary tract drainage, relieve obstruction, reduce back pain, reduce infection, prevent ureteral stenosis, and facilitate the discharge of gravel. Although the current ureteral catheterization stents have been continuously improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/14
CPCA61M25/0017A61M25/0043A61M2025/0056A61M27/008
Inventor 谢正武叶林辉郑立巧刘巧清
Owner 深圳泰睿仕医疗科技有限公司
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