Luer having tubing retention pocket bond

Patent metadata

Field	Value
Publication number	US-11383073-B2
Application number	US-201816009813-A
Country	US
Kind code	B2
Filing date	Jun 15, 2018
Priority date	Jun 15, 2018
Publication date	Jul 12, 2022
Grant date	Jul 12, 2022

Abstract

A connector comprises a body having a tubing portion and a luer portion axially opposite the tubing portion and connected thereto, an internal passageway defined by an inner circumferential surface of the connector, the passageway extending axially between the tubing portion and the luer portion and in fluid communication therewith, a stopping mechanism disposed in the luer portion and configured to limit an extent of a fluid line disposed in the connector, and a retaining mechanism disposed in the tubing portion and configured to retain the fluid line in the connector.

First claim

What is claimed is:

1. A connector, comprising:
a body having a tubing portion and a luer portion axially opposite the tubing portion and connected thereto;
an internal passageway defined by an inner circumferential surface of the connector, the internal passageway extending axially between the tubing portion and the luer portion and in fluid communication therewith;
a stopping mechanism comprising one or more discontinuous ledges projecting from the inner circumferential surface along the luer portion in a direction that is radially inward into the internal passageway and configured to limit an extent of a fluid line disposed in the connector; and
a retaining mechanism projecting from the inner circumferential surface along the tubing portion in a direction that is radially inward into the internal passageway, wherein the retaining mechanism is spaced apart from the stopping mechanism along an axis defined by the internal passageway and is offset from the stopping mechanism along a circumference around the axis, and configured to retain the fluid line in the connector.

2. The connector of claim 1 , wherein the inner circumferential surface includes a tubing profile in the tubing portion and a luer profile in the luer portion.

3. The connector of claim 1 , wherein the tubing portion includes a tubing port configured to receive a fluid line and the luer portion includes a luer port configured to receive a male luer connector, the tubing port and the luer port being in fluid communication through the internal passageway.

4. The connector of claim 1 , wherein the one or more discontinuous ledges comprise two ledges disposed diametrically opposite each other.

5. The connector of claim 1 , wherein the retaining mechanism includes two barbed features disposed diametrically opposite each other.

6. The connector of claim 1 , wherein the retaining mechanism includes one or more barbed features projecting radially inward from the inner circumferential surface.

7. A method of manufacturing a connector, comprising:
providing a first core pin and a second core pin, the first core pin comprising:
a first core pin body having a first base portion and a luer-shaping portion connected to each other, wherein two ledge-forming profiles are defined at a distal end of the first core pin and disposed diametrically opposite each other, and the second core pin comprising:
a second core pin body having a second base portion and a tubing-shaping portion connected to each other, wherein a barb-forming profile is defined at a distal end of the second core pin;

inserting the first and second core pins into a material forming the connector, the first and second core pins being axially aligned and inserted into the material from opposite ends;
contacting the distal ends of the first and second core pins with each other such that the ledge-forming profiles are at least partially received into the barb-forming profile; and
forming a connector around outer surfaces of the first and second core pins, wherein the connector comprises:
inner circumferential surface forming an internal passageway having a tubing portion and a luer portion, and defining an axis therethrough;

a stopping mechanism comprising one or more one or more discontinuous ledges projecting from the inner circumferential surface in a direction that is radially inward into the internal passageway; and a retaining mechanism projecting from the inner circumferential surface in a direction that is radially inward into the internal passageway, wherein the retaining mechanism is spaced apart from the stopping mechanism along the axis and is offset from the stopping mechanism along a circumference around an axis defined by the internal passageway.

8. The method of claim 7 , wherein each ledge-forming profile includes a first planar surface and a second planar surface, each formed on an outer surface of the first core pin,
the first planar surface extends axially a first distance and at a first angle with respect to the axis of the connector, and
the second planar surface extends axially a second distance from the first planar surface to the distal end and at a second angle with respect to the axis of the connector, the first angle and the second angle being different.

9. The method of claim 7 , wherein the barb-forming profile includes:
two axially extending prongs and a cavity defined therebetween, the cavity being defined by a planar bottom surface of the first core pin disposed perpendicular to the axis of the connector at the distal end of the second core pin and an angled inner surface of each prong, and
two chamfered edges disposed diametrically opposite each other, each chamfered edge being defined between the planar bottom surface and an outer surface of the second core pin.

Assignees

• Carefusion 303 Inc

Inventors

• Feith Raymond

Classifications

• A61M2039/1027

  Quick-acting type connectors · CPC title

• A61M2207/10

  Device therefor · CPC title

• A61M39/1011 Primary

  Locking means for securing connection; Additional tamper safeties (A61M39/16 takes precedence) · CPC title

• A61M2039/1077

  Adapters, e.g. couplings adapting a connector to one or several other connectors · CPC title

• A61M2207/00

  Methods of manufacture, assembly or production · CPC title