# US 11,077,260 B2 · Flow control plug securement

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- Number: US 11,077,260 B2
- Document ID: US11077260B2
- Status: Granted
- Kind: B2
- Application number: 15/896,257
- Filed: 2018-02-14
- Published: 2019-08-15
- Granted: 2021-08-03
- Earliest claimed: 2018-02-14
- Assignees: Becton, Dickinson and Company
- Applicants: Becton, Dickinson and Company
- Inventors: Sakthivel Karthikeyan; Sudarsan Srinivasan
- Web page: https://patentgrep.com/patent/US11077260B2

## CPC

- A61M 5/36: with means for eliminating or preventing injection or infusion of air into body (dialysis systems, blood oxygenators A61M1/14; haemofiltration equipment A61M1/34; {automatic tube cut-off A61M39/281})
- A61M 39/1011: {Locking means for securing connection; Additional tamper safeties (A61M39/16 takes precedence)}
- A61M 39/105: {Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes (multi-channel connectors in general F16L37/56)}
- A61M 39/20: Closure caps or plugs for connectors or open ends of tubes
- A61M 25/0097: {characterised by the hub (tube connectors or tube couplings A61M39/10)}
- A61M 39/04: having pierceable self-sealing members
- A61M 39/162: {with antiseptic agent incorporated within the connector}
- A61M 2039/1027: {Quick-acting type connectors}
- A61M 2039/1072: {with a septum present in the connector}
- A61M 2039/1077: {Adapters, e.g. couplings adapting a connector to one or several other connectors}
- A61M 2039/1083: {having a plurality of female connectors, e.g. Luer connectors}
- A61M 2039/205: {comprising air venting means}
- 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

A catheter system may include a luer adapter, which may include an outer surface having threading or a recess. The catheter system may also include a flow control plug, which may include a proximal end and a distal end. The proximal end of the flow control plug may include a filter element permeable to air and not to blood. The distal end of the flow control plug may include a cylinder and a taper-shaped luer tip spaced apart from the cylinder. An inner surface of the cylinder may include a protrusion engaged in a snap-fit with the recess or corresponding threading mated with the threading.

## Claims

### Claim 1

A catheter system, comprising:
a luer adapter, comprising an outer surface having a recess, wherein the luer adapter is coupled to a catheter adapter via extension tubing;
a flow control plug, comprising:
a proximal end having a filter element permeable to air and not to blood; and
a distal end having a cylinder and a taper-shaped luer tip spaced apart from the cylinder, wherein an inner surface of the cylinder includes a protrusion engaged in a snap-fit with the recess, wherein an outer surface of the distal end comprises a plurality of first ribs and an outer surface of the proximal end comprises a plurality of second ribs, wherein the plurality of first ribs and the plurality of second ribs are oriented longitudinally with respect to the flow control plug, wherein the outer surface of the proximal end has more second ribs than the outer surface of the distal end has first ribs, and wherein the distal end further comprises a stepped surface, wherein the distal end extends outwardly from the proximal end to form the stepped surface, wherein the stepped surface is annular.

### Claim 2 (depends on 1)

The catheter system of claim 1, wherein the luer adapter is a Y-adapter.

### Claim 3 (depends on 1)

The catheter system of claim 1, wherein the plurality of first ribs extend from the stepped surface and along an entire length of the cylinder.

### Claim 4 (depends on 1)

The catheter system of claim 1, wherein a width of each of the plurality of first ribs is greater than a width of each of the plurality of second ribs.

### Claim 5 (depends on 1)

The catheter system of claim 1, wherein the plurality of first ribs comprises a first rib and a second rib that opposes the first rib.