Infusion device with releasable fluid connector

• US 10,342,967 B2
• Filed: 09/22/2017
• Issued: 07/09/2019
• Est. Priority Date: 12/07/2011
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Sonderegger, Ralph, Marsh, Ronald, Hwang, Charles, Richards, Stephen, Politis, Victor, Horvath, Joshua, Glace, Benjamin, Sullivan, James, Lambert, Ryan, Venditto, Gregory, Bene, Eric
• Primary Examiner(s): Bosques, Edelmira
• Application Number:
  US15/713,354
• Publication Number:
  US 20180008814A1
• Time in Patent Office: 655 Days
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2005/1586 Holding accessories for holding infusion needles on the body holding devices for catheters A61M25/02
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 2039/0036 characterised by a septum having particular features, e.g. having venting channels or being made from antimicrobial or self-lubricating elastomer
• CPC Class Codes: A61M 2039/0072 Means for increasing tightness of the septum, e.g. compression rings, special materials, special constructions
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 39/045 pre-slit to be pierced by blunt instrument
• CPC Class Codes: A61M 39/1055 Rotating or swivel joints in general F16L27/00
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/3202 Devices for protection of the needle before use, e.g. caps A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001
• CPC Class Codes: A61M 5/3213 Caps placed axially onto the needle, e.g. equipped with finger protection guards axially-extensible protective sleeves A61M5/3243
• CPC Class Codes: B29C 45/14 incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles B29C45/1671 takes precedence
• CPC Class Codes: B29C 45/14344 Moulding in or through a hole in the article, e.g. outsert moulding
• CPC Class Codes: B29C 45/16 Making multilayered or multicoloured articles B29C45/0062 takes precedence; feeding colouring materials into the injection unit B29C45/1816
• CPC Class Codes: B29C 45/1615 The materials being injected at different moulding stations
• CPC Class Codes: B29C 45/1657 using means for adhering or bonding the layers or parts to each other mechanical anchoring B29C37/0082

Abstract

An infusion set system includes a base and a fluid connector removably coupleable thereto. The fluid connector includes a fluid path portion and at least one connector latch displaceably connected to the fluid path portion and displaceable to a latching position in which at least a portion of the connector latch extends into the fluid path portion, which includes a cannula extending from a top interior surface thereof, and a plurality of internal sidewalls corresponding to at least two of a plurality of flat side surfaces of at least one of a base section and a base latch, thereby facilitating connection between the base and the fluid connector in a plurality of discrete rotational connecting positions. When the fluid connector is locked to the base, the at least one connector latch engages a base latching portion of the base and restricts proximal displacement of the fluid connector.

Claims

1. A two-piece fluid connector for use with an infusion set, the fluid connector comprising:

a fluid path portion, comprising a cannula integral with and extending from a proximal interior surface of the fluid path portion, the cannula fluidly communicating with a port on the exterior of the fluid path portion; and

a latching portion secured to the fluid path portion and having a pair of displaceable arms and a rigid stop, each arm comprising;

a connector latch disposed at a first, cantilevered end of the arm; and

an activation lever disposed at an opposite cantilevered end of the arm;

wherein the rigid stop is disposed between the activation levers and is adapted to provide an inward travel limit of the activation levers; and

the connector latch is displaceable to a latching position in which at least a portion of the connector latch extends into an interior of the fluid path portion through an exterior side wall of the fluid path portion.

2. The connector according to claim 1, wherein the at least one arm is pivotably connected to the latching portion via a living hinge.

3. The connector according to claim 1, wherein the fluid path portion has a dome-shaped exterior surface to reduce its profile and aid in preventing unintentional disconnection of the fluid connector.

4. The connector according to claim 1, wherein the fluid path portion and the latching portion are made of the same material.

5. The connector according to claim 1, wherein the latching portion is secured to the fluid path portion via a snap-fit engagement.

6. The connector according to claim 1, wherein the connector latch has a pair of angled side surfaces substantially parallel to a longitudinal axis of the cannula.

7. The connector according to claim 1, wherein the connector latch has a beveled distal surface.

8. The connector according to claim 6, wherein the connector latch has a beveled distal surface.

9. The connector according to claim 1, wherein the connector latch is resiliently biased toward the latching position.

10. The connector according to claim 1, wherein:

the cannula extends from the top interior surface of the fluid path portion in a first direction; and

the fluid connector has a single inlet port disposed at an angle to the first direction to reduce the profile of the fluid connector.

11. The connector according to claim 10, wherein the single inlet port is substantially perpendicular to the first direction.

12. The connector according to claim 1, wherein the fluid path portion includes a plurality of flat internal sidewalls.