Ureteral stent

TWM688586UActive Publication Date: 2026-10-11BIOTEQUE CORP
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Patent Information

Application Number
TW115206773
Authority / Receiving Office
TW · TW
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-07-17
Publication Date
2026-10-11
Estimated Expiration
2036-07-16

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Abstract

This invention relates to a ureteral stent, comprising a catheter body, a renal pelvis end, and a bladder end. The renal pelvis end is curved at one end of the catheter body and is placed in a user's renal pelvis. The bladder end is curved at the other end of the catheter body and is placed in the user's bladder. The stiffness of both the renal pelvis end and the bladder end is less than that of the catheter body. By setting the stiffness of both the renal pelvis end and the bladder end to be less than that of the catheter body, this invention provides better comfort when the renal pelvis end is placed in the renal pelvis and the bladder end is placed in the bladder, and reduces irritation to the renal pelvis and bladder. For patients requiring a ureteral stent, this significantly improves the treatment experience and quality of life.
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Claims

1. A ureteral stent comprising: a catheter body, which is tubular; a renal pelvis end, which is bent at one end of the catheter body and is for placement in a user's renal pelvis; and a bladder end, which is bent at the other end of the catheter body and is for placement in the user's bladder; wherein, The hardness of the renal pelvis tip is less than that of the catheter body, and the hardness of the bladder tip is less than that of the catheter body.

2. The ureteral stent as claimed in claim 1, wherein the renal pelvis end and the bladder end are respectively bent toward opposite sides of the catheter body.

3. The ureteral stent as described in claim 1 or 2, wherein the curvature of the renal pelvis end is less than the curvature of the bladder end.

4. The ureteral stent as described in claim 1 or 2, wherein the stiffness of the catheter body is between Shore A 92 and Shore A 95.

5. The ureteral stent as claimed in claim 1 or 2, wherein the stiffness of the renal pelvis end and the stiffness of the bladder end are between 85 and 90 Shore A.

6. The ureteral stent as claimed in claim 1 or 2, wherein the end of the renal pelvis is bent to form a loop, and the diameter of the end of the renal pelvis is between 16 mm and 18 mm.

7. A ureteral stent as claimed in claim 1 or 2, wherein the bladder end is bent to form a loop, and the diameter of the bladder end is between 13 mm and 15 mm.

8. The ureteral stent as claimed in claim 1 or 2, wherein a plurality of through holes are formed on the catheter body, the renal pelvis end and the bladder end, the through holes being spaced apart.