IP Library › Granted Patent US 12,544,551
Granted Patent B2
US 12,544,551 · App. 17/920,168 · Granted Feb 10, 2026

Urinary catheter cap

Inventors: Osamu Takiguchi (Naruto, JP); Tetsuya Masuda (Naruto, JP); Takashi Hisamoto (Naruto, JP)
Assignee: OTSUKA TECHNO CORPORATION
A61M39/20A61M25/0017A61M39/10
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Quick Facts
Patent No.
US 12,544,551
App. No.
17/920,168
Granted
Feb 10, 2026
Kind
B2
Abstract

A urinary catheter cap includes a main body that includes a urine introduction passage including a connection hole configured to be connected to a urinary catheter and a drain hole for draining urine, a lid portion that has a tubularly formed portion having a first end portion at the drain hole side and a second end portion at an opposite side and opens and closes the drain hole, a partition portion that divides the tubular portion of the lid portion into a plurality of spaces, and a hydrophobic film that is formed such that the hydrophobic film blocks at least two or more of the spaces at the second end portion of the lid portion. The partition portion may include a partitioning plate that is installed between a plurality of locations of an inner circumferential portion of the tubular portion of the lid portion.

Claims (58)

1 . A urinary catheter cap comprising:

a main body that includes a urine introduction passage including a connection hole configured to be connected to a urinary catheter and a drain hole for draining urine;

a lid portion that has a tubular portion having a first end portion at the drain hole side and a second end portion at an opposite side and opens and closes the drain hole;

a partitioning plate disposed inside the tubular portion of the lid portion and that divides the tubular portion of the lid portion into a plurality of spaces; and

a hydrophobic film configured to block at least two or more of the spaces at the second end portion of the lid portion,

wherein the hydrophobic film is disposed at a distal end and downstream of the partitioning plate in a urine flow direction.

2 . The urinary catheter cap according to claim 1 , wherein

the partitioning plate has a cross shape such that the tubular portion of the lid portion is demarcated into four spaces by the partitioning plate, and

the hydrophobic film is formed such that the hydrophobic film extends across all of the four spaces.

3 . The urinary catheter cap according to claim 2 , wherein the four spaces have mutually congruent fan shapes.

4 . The urinary catheter cap according to claim 2 , wherein the hydrophobic film is supported by the partition plate with the cross shape.

5 . The urinary catheter cap according to claim 1 , wherein

the lid portion includes a cover member that is formed at the second end portion of the tubular portion of the lid portion such that the cover member covers the hydrophobic film, and

the cover member has a projecting portion that projects outward from a side wall thereof.

6 . The urinary catheter cap according to claim 5 , wherein

the projecting portion projects selectively outward from a part of the side wall of the cover member, and

the cover member is in a shape of a cap.

7 . The urinary catheter cap according to claim 5 , wherein the projecting portion includes a flange portion with an annular shape that is formed across an entire outer circumference of the cover member.

8 . The urinary catheter cap according to claim 5 , wherein

the cover member includes a top wall portion that covers the hydrophobic film and has an upper surface constituted of a plain surface without holes formed therein and

a flow port that secures flow of air inside and outside the cover member in a lateral direction along the upper surface of the top wall portion is formed in a side wall of the cover member.

9 . The urinary catheter cap according to claim 5 , wherein

the cover member is provided such that the hydrophobic film is accommodated inside, and

the hydrophobic film is fixed between the cover member and the lid portion.

10 . The urinary catheter cap according to claim 1 , wherein the lid portion is openably and closably coupled to the main body via a hinge mechanism.

11 . The urinary catheter cap according to claim 1 , wherein the main body is formed of a material that contains a substance with antibacterial action.

12 . The urinary catheter cap according to claim 1 , wherein the main body is formed of a translucent material that contains a substance configured to generate color upon contact with water.

13 . The urinary catheter cap according to claim 1 , wherein an embossment is formed on an inner surface of the urine introduction passage of the main body.

14 . The urinary catheter cap according to claim 1 , further comprising:

a detecting device that detects a presence of urine at the urine introduction passage; and

a transmitting device that transmits information relating to the presence of the urine based on detection by the detecting device.

15 . The urinary catheter cap according to claim 1 , wherein the hydrophobic film is formed of a material that contains an ammonia degrading enzyme.

16 . The urinary catheter cap according to claim 1 , wherein the hydrophobic film contains an acidic agent.

17 . The urinary catheter cap according to claim 1 , wherein the hydrophobic film

has a thickness of 0.01 mm to 2 mm and

its air permeation (Gurley value) measured in conformance to JIS P 8117 (Gurley method) is 0.1 seconds to 500 seconds/100 mL and

its water pressure resistance measured in conformance to JIS L 1092-B (high water pressure method) is not less than 0.1 kPa.

18 . A urinary catheter cap comprising:

a main body that includes a urine introduction passage including a connection hole configured to be connected to a urinary catheter and a drain hole for draining urine;

a lid portion that opens and closes the drain hole;

an open hole that is formed in the main body or the lid portion and faces the urine introduction passage;

a hydrophobic film configured to block the open hole via a film placement portion; and

a cover member provided such that the film placement portion and the hydrophobic film are accommodated inside, the hydrophobic film being fixed between the cover member and the lid portion,

wherein the hydrophobic film is disposed at a distal end and downstream of the open hole in a urine flow direction.

19 . The urinary catheter cap according to claim 18 , wherein the open hole is formed in the lid portion.

20 . The urinary catheter cap according to claim 19 , wherein the lid portion is openably and closably coupled to the main body via a hinge mechanism and

the lid portion has a plug portion with a tubular shape that is inserted into the drain hole and has the open hole formed therein.

21 . The urinary catheter cap according to claim 19 , wherein the lid portion includes a lid portion of a screw type that is detachable from the main body.

22 . The urinary catheter cap according to claim 18 , wherein the open hole is formed such that the open hole is connected to an intermediate portion of the urine introduction passage of the main body in a flow direction of urine.

23 . The urinary catheter cap according to claim 18 , wherein the main body is formed of a material that contains a substance with antibacterial action.

24 . The urinary catheter cap according to claim 18 , wherein the drain hole has a curved shape and a diameter that increases toward an open end of the drain hole.

25 . The urinary catheter cap according to claim 18 , wherein the main body is formed of a translucent material that contains a substance configured to generate color upon contact with water.

26 . The urinary catheter cap according to claim 18 , wherein an embossment is formed on an inner surface of the urine introduction passage of the main body.

27 . The urinary catheter cap according to claim 18 , further comprising:

a detecting device that detects a presence of urine at the urine introduction passage; and

a transmitting device that transmits information relating to the presence of the urine based on detection by the detecting device.

28 . The urinary catheter cap according to claim 18 , wherein the hydrophobic film is formed of a material that contains an ammonia degrading enzyme.

29 . The urinary catheter cap according to claim 18 , wherein the hydrophobic film contains an acidic agent.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 20, 2022
From: TAKIGUCHI, OSAMU; MASUDA, TETSUYA; HISAMOTO, TAKASHI
To: OTSUKA TECHNO CORPORATION
Reel/Frame 061484/0927 →
Priority Claims (1)
JP 2020-076920 · Apr 23, 2020 · national
Continuity (1)
Related Publication 20230173246A1 · Jun 8, 2023
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