# US 10,245,417 B2 · Package for extended shelf life of liquid core catheters

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- Number: US 10,245,417 B2
- Document ID: US10245417B2
- Status: Granted
- Kind: B2
- Application number: 15/723,057
- Filed: 2017-10-02
- Published: 2018-01-25
- Granted: 2019-04-02
- Earliest claimed: 2013-10-16
- Assignees: Ra Medical Systems, Inc.
- Applicants: Ra Medical Systems, Inc.
- Inventors: James B. Laudenslager; Dean S. Irwin
- Web page: https://patentgrep.com/patent/US10245417B2

## CPC

- A61M 25/09: Guide wires
- A61B 18/245: {for removing obstructions in blood vessels or calculi}
- A61B 50/30: Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments (for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40)
- A61B 2018/00285: {Balloons}
- A61B 2018/0041: {Removal of thrombosis}
- A61B 2018/00577: {Ablation}
- A61B 2018/206: {the laser light passing along a liquid-filled conduit}
- A61B 2018/2222: {Fibre material or composition}
- A61B 2018/2238: {with means for selectively laterally deflecting the tip of the fibre}
- A61B 2050/314: {Flexible bags or pouches}
- A61B 2090/3966: {Radiopaque markers visible in an X-ray image}
- 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 2025/0177: {having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes}
- A61M 2025/105: {having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes}
- 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)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Devices and methods are discussed directed to the use of a low profile laser ablation catheter for use in laser ablation removal of arterial plaque blockages to restore blood flow in the treatment of arteriovenous fistulas. Also discussed are devices and methods directed to packaging, long term storage and sterilization of liquid core ablation catheters.

## Claims

### Claim 1

A package assembly to extend a shelf life of a liquid core catheter, comprising:
a liquid core catheter comprising a core liquid;
a polymer spiral tube which includes an inner lumen filled with a storage liquid that is soluble in or miscible with the core liquid of the liquid core catheter and which is sealed at both ends to contain the storage liquid in the inner lumen of the polymer spiral tube; and
a sealed pouch which is made of either metallized plastic or polychlorotrifluoroethylene that acts as a hermetic seal for liquids disposed within the sealed pouch and which includes a hermetically sealed inner volume with the polymer spiral tube and liquid core catheter being disposed within the hermetically sealed inner volume.

### Claim 2 (depends on 1)

The package of claim 1 wherein the sealed pouch comprises a heat sealed pouch.

### Claim 3 (depends on 1)

The package of claim 1 wherein the liquid core catheter comprises a liquid core ablation catheter.

### Claim 4 (depends on 1)

The package assembly of claim 1 wherein each end of the polymer spiral tube comprises a straight section extending away from a spiral portion of the polymer spiral tube.