# US 2019/0167942 A1 · Method of preparing a ready-to-use urinary catheter and a catheter assembly for use in said method

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- Number: US 2019/0167942 A1
- Document ID: US20190167942A1
- Status: Published application
- Kind: A1
- Application number: 16/272,984
- Filed: 2019-02-11
- Published: 2019-06-06
- Earliest claimed: 2012-10-26
- Assignees: Teleflex Life Sciences Unlimited Company
- Applicants: Teleflex Life Sciences Unlimited Company
- Inventors: Lars SCHØNFELDT
- Web page: https://patentgrep.com/patent/US20190167942A1

## CPC

- A61M 25/002: {Packages specially adapted therefor (combined with means for introducing catheters, e.g. dispensers, A61M25/0113); catheter kit packages (for surgical articles A61B50/30)}
- A61M 25/0017: {specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections}
- A61M 27/00: Drainage appliance for wounds or the like {, i.e. wound drains, implanted drains} ({negative pressure wound therapy devices A61M1/90;} implements for holding wound open A61B17/02 {; middle ear drainage A61F11/202})
- B65B 5/045: {in bags}
- B65B 51/00: Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B 55/18: by liquids or gases (B65B55/14 takes precedence)
- B65B 55/22: Immersing contents in protective liquids
- A61M 2207/00: Methods of manufacture, assembly or production
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)

## Abstract

A method of preparing a ready-to-use catheter by providing a catheter assembly that has a first compartment that includes a catheter therein. The catheter includes on at least a part of its surface an exterior coating designed to reduce the coefficient of friction after treatment with a liquid swelling medium, and a second compartment containing a liquid swelling medium. The method includes sterilising the catheter assembly, adding the liquid swelling medium to the first compartment for wetting/activating the exterior coating of the catheter, and storing the ready-to-use catheter. By using the method according to the invention, the sterilisation of the catheter is effectuated in a dry-state, ensuring that the known problems with wet-sterilisation are completely eliminated and the need for preparing complicated and expensive liquid swelling mediums are no longer required.

## Claims

### Claim 1

A method of preparing a ready-to-use catheter, said method comprising:
providing a catheter assembly, comprising
i. a catheter disposed in a first location, said catheter comprises on at least a part of its surface an exterior coating arranged to reduce the coefficient of friction after treatment with a swelling medium, and
ii. a swelling medium disposed in a second location, said catheter assembly being wrapped or placed in a gas-impermeable package, said method comprises the steps of:
sterilising the catheter assembly,
transferring the swelling medium to the first location under sterile conditions inside the sterile boundaries of the catheter assembly for wetting/activating the catheter's exterior coating, wherein said transferring occurs when the catheter assembly is in one or more production facilities, and
storing the ready-to-use catheter.