Infusion device with releasable fluid connector

• US 10,758,721 B2
• Filed: 09/25/2017
• Issued: 09/01/2020
• 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): Vu, Quynh-Nhu H.
• Application Number:
  US15/714,861
• Publication Number:
  US 20180008815A1
• Time in Patent Office: 1,072 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 needle guard for guarding a sharp cannula of an infusion device, the needle guard comprising:

a proximal portion for connecting to a base of the infusion device; and

a distal portion for user interaction;

wherein the proximal and distal portions each include at least one axial cutout that divides the needle guard into first and second lateral sides; and

wherein a fulcrum web is disposed between the proximal and distal axial cutouts to join the first and second lateral sides of the needle guard and provide a fulcrum for relative rotation of the first and second lateral sides of the needle guard.

2. The needle guard according to claim 1, wherein the needle guard is integrally formed as a unitary structure.

3. The needle guard according to claim 1, wherein:

the proximal portion includes a pair of axial cutouts;

the distal portion includes a pair of axial cutouts;

the proximal axial cutouts are substantially aligned with the distal axial cutouts, forming pairs of aligned cutouts; and

the needle guard further comprises a pair of fulcrum webs respectively disposed between the pairs of aligned cutouts.

4. The needle guard according to claim 1, wherein the distal portion includes a pair of concave sculpted portions for interaction with the user'"'"'s fingers.

5. The needle guard according to claim 1, wherein the distal portion includes a plurality of support ribs to increase the structural rigidity of the distal portion.

6. The needle guard according to claim 1, wherein the proximal portion includes a pair of opposing, inward-cantilevered gripping portions for connecting with the infusion device.

7. A combination, comprising:

the needle guard according to claim 6; and

the base of the infusion set, wherein the base includes distally-extending column from which a cannula protrudes distally;

the column having an undercut middle portion, thereby forming a lip at its distal end;

wherein the gripping portions of the needle guard engage the lip to selectively retain the needle guard on the base.

8. The combination according to claim 7, wherein when connected with the base, a proximal portion of the needle guard contacts a proximal ceiling of an annular space surrounding the column.

9. The combination according to claim 8, wherein the column extends distally beyond a substantially planar distal surface of the base.

10. The combination according to claim 7, wherein:

the base includes an adhesive on a distal surface thereof; and

the combination further comprises a one-piece release liner having an interior opening therethrough, an external tab, and a single cut extending substantially radially from the tab to the interior opening.

11. The combination according to claim 10, wherein the interior opening is substantially centered about the column.

12. The combination according to claim 7, wherein:

the base includes an adhesive on a distal surface thereof; and

the combination further comprises a one-piece release liner covering the adhesive, the release liner comprising;

a flexible planar field portion having an interior opening therethrough, the field portion having a first measurement from a center of the field portion to a perimeter of the field portion; and

a tab portion contiguous with the field portion and extending a second measurement from the center of the field portion to a perimeter of the tab portion, the second measurement being greater than the first measurement, the release liner having a single cut extending substantially linearly from the tab portion to the interior opening.

13. The needle guard according to claim 1, wherein the proximal portion of the needle guard connects directly to a distal portion of the base of the infusion device.