# US 11,077,247 B2 · Intravenous tubing set modified for in-line catheter flushing

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- Number: US 11,077,247 B2
- Document ID: US11077247B2
- Status: Granted
- Kind: B2
- Application number: 16/379,963
- Filed: 2019-04-10
- Published: 2019-08-01
- Granted: 2021-08-03
- Earliest claimed: 2013-04-03
- Assignees: Becton, Dickinson and Company
- Applicants: Becton, Dickinson and Company
- Inventors: Kathleen Wiest; Lindsay Miller; Jessica Williams; Rebecca Zaunbrecher; Ann Saterbak; Z. Maria Oden; Andrew Geiszler
- Web page: https://patentgrep.com/patent/US11077247B2

## CPC

- A61M 5/16827: {controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths (infusion of multiple fluids without using a controller A61M5/1407)}
- A61M 5/14: Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M 5/1409: {in series, e.g. reconstitution systems with a first substance passing through a container holding a second substance}
- A61M 2005/1403: {Flushing or purging}
- A61M 2205/582: by tactile feedback
- 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)}

## Abstract

An intravenous tubing set is provided having a coupling component for accessing a source of flush solution; a flush chamber; a first IV tubing for delivering saline solution from the source of flush solution to the flush chamber; a first flow control device disposed in the tubing between the source of flush solution and the flush chamber to control the flow of flush solution into the flush chamber; a second IV tubing for delivering flush solution to a patient catheter; and a second flow control device disposed in the second tubing between the flush chamber and the patient catheter.

## Claims

### Claim 1

A closed intravenous tubing set comprising:
a coupling component for accessing a source of flush solution;
a flush chamber having a vacuum, the flush chamber heat-sealed to a first IV tubing connecting the flush chamber and a patient catheter, the flush chamber comprising one or more sheets of flexible plastic film;
a second IV tubing connecting the source of flush solution and the flush chamber;
one or more flow control devices disposed in the second IV tubing between the source of flush solution and the flush chamber to control a flow of flush solution into the flush chamber; and
one or more flow control devices disposed in the first IV tubing between the flush chamber and the patient catheter.

### Claim 2 (depends on 1)

The intravenous tubing set of claim 1, wherein the coupling component comprises an intravenous bag spike.

### Claim 3 (depends on 1)

The intravenous tubing set of claim 1, wherein the source of flush solution is an intravenous bag.

### Claim 4 (depends on 1)

The intravenous tubing set of claim 1, wherein the flush solution is a saline solution.

### Claim 5 (depends on 1)

The intravenous tubing set of claim 1, wherein the flush chamber comprises two heat-sealed sheets of flexible polypropylene.

### Claim 6 (depends on 1)

The intravenous tubing set of claim 1, wherein the flush chamber is positioned as a bifurcated appendage to the first IV tubing.

### Claim 7 (depends on 1)

The intravenous tubing set of claim 1, wherein the flush chamber is positioned in series with the first IV tubing.

### Claim 8 (depends on 1)

The intravenous tubing set of claim 1, wherein the flush chamber is disposed partway down a length of the first IV tubing to allowing a volume of saline to be measured prior to flushing.

### Claim 9 (depends on 1)

The intravenous tubing set of claim 1, wherein the volume of the flush chamber correlates to a pre-determined flushing volume.

### Claim 10 (depends on 9)

The intravenous tubing set of claim 9, wherein the volume of the flush chamber allows for a 3 mL, 5 mL, or 10 mL flush to be delivered to the patient catheter.

### Claim 11 (depends on 1)

The intravenous tubing set of claim 1, further comprising an attachment port disposed below the flush chamber.

### Claim 12 (depends on 11)

The intravenous tubing set of claim 11, further comprising a short length of IV tubing to connect a second source of solution downstream of the flush chamber.

### Claim 13 (depends on 12)

The intravenous tubing set of claim 12, wherein the second source of solution comprises a medication.

### Claim 14 (depends on 1)

The intravenous tubing set of claim 1, wherein the flush chamber allows for tactile feedback to a user during a flush procedure to enable the user to detect a presence of an occlusion in the IV line or in a patient's vein.

### Claim 15 (depends on 1)

The intravenous tubing set of claim 1, further comprising a bubble trap disposed in the first IV tubing.

### Claim 16 (depends on 1)

The intravenous tubing set of claim 1, wherein the flow control device is a valve, clamp, gate, stopcock, diverter or plug.

### Claim 17 (depends on 16)

The intravenous tubing set of claim 16, wherein the flow control device is a pinch valve or one way valve.