Urinary catheter

Patent metadata

Field	Value
Publication number	US-10010697-B2
Application number	US-201414249369-A
Country	US
Kind code	B2
Filing date	Apr 10, 2014
Priority date	Jun 26, 2009
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

Abstract

A urinary catheter includes a tube and a tip. The tube has a tube wall defining a lumen extending between a distal tube end and a proximal tube end, with an opening formed in the tube wall. The tip extends from the proximal tube end to a closed proximal tip end. An inside diameter of the lumen increases constantly along an entire length of the tube from a first inside diameter measured at the proximal tube end to a second inside diameter measured at the distal tube end, where the first inside diameter is smaller than the second inside diameter such that the lumen is formed in a conical shape that diverges from the proximal tube end to a wider cross-sectional opening at the distal tube end.

First claim

The invention claimed is:

1. A urinary catheter comprising:
a tube having a tube wall defining a lumen extending between a distal tube end and a proximal tube end, with an opening formed in the tube wall distal of the proximal tube end, where the opening communicates with the lumen; and
a tip extending from the proximal tube end to a closed proximal tip end, where the closed proximal tip end forms a proximal-most end of the urinary catheter;
wherein an inside diameter of the lumen increases along a length of the tube from a first inside diameter measured at the proximal tube end to a second inside diameter measured at the distal tube end, where the first inside diameter is smaller than the second inside diameter such that the lumen is conical in shape and diverges from the proximal tube end to a wider cross-sectional opening at the distal tube end;
wherein an outside diameter of the tube increase along a length of the tube from a first outside diameter measured at the proximal tube end to a second outside diameter measured at the distal tube end, where the first outside diameter is smaller than the second outside diameter such that the tube is conical in shape and converges toward the proximal tube end; and
wherein a thickness of the tube wall measured at the proximal tube end is greater than a thickness of the tube wall measured at the distal tube end.

2. The urinary catheter of claim 1 , wherein the outside diameter of the tube increases linearly along the length of the tube from the proximal tube end to the distal tube end.

3. The urinary catheter of claim 1 , further comprising:
a connector attached to the tube at the distal tube end.

4. The urinary catheter of claim 1 , further comprising:
a plunger connector attached to the tube at the distal tube end, where the plunger connector includes a seal between the urinary catheter and a package provided to contain the urinary catheter.

5. The urinary catheter of claim 1 , further comprising:
a tapered connector attached to the tube at the distal tube end.

6. The urinary catheter of claim 1 , wherein the closed proximal tip end is hemi-spherical in shape.

7. The urinary catheter of claim 1 , further comprising:
a hydrophilic coating applied to an outside surface of at least the tube of the urinary catheter.

8. The urinary catheter of claim 1 , wherein the opening formed in the tube wall is provided with a rounded edge.

Assignees

• Coloplast As

Inventors

• Triel Egon
• Wagner Johnny

Classifications

• A61M25/0023

  by the form of the lumen, e.g. cross-section, variable diameter · CPC title

• A61M25/0017 Primary

  specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections · CPC title

• A61M25/0021 Primary

  characterised by the form of the tubing (A61M25/0054 takes precedence) · CPC title

• A61M25/0068

  Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure · CPC title

• A61M25/0069

  Tip not integral with tube · CPC title