US 11,925,793 B2
Apparatus for injecting a fluid, comprising a needle assembly and a needle retention device for retaining a needle of the needle assembly when attached to the apparatus, and needle retention device
Raymond Moser, Engelburg (CH)
Assigned to SCHOTT Pharma Schweiz AG, St. Gallen (CH)
Filed by SCHOTT Pharma Schweiz AG, St. Gallen (CH)
Filed on Aug. 14, 2020, as Appl. No. 16/993,555.
Claims priority of application No. 19191947 (EP), filed on Aug. 15, 2019.
Prior Publication US 2021/0046255 A1, Feb. 18, 2021
Int. Cl. A61M 5/34 (2006.01)
CPC A61M 5/347 (2013.01) [A61M 2205/6081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for injecting fluid, comprising:
an injector configured to inject a fluid, the injector comprising a cylindrical container configured for receiving and containing the fluid, a coupling portion, and a peripheral section;
a needle assembly comprising a needle and a hub, the hub defining a contact area, the coupling portion being configured to be coupled with the hub; and
a needle retention device comprising a needle-retainer portion having a plurality of fingers configured to radially extend over at least a part of the contact area of the hub, a container-contact portion defining a first opening configured to be attached in a form-fitting way onto the peripheral section of the container, wherein, when the apparatus is in its operational state for injecting the fluid, the hub of the needle assembly is coupled to the coupling portion of the container, the container-contact portion is attached to the container, and the plurality of fingers of the needle-retainer portion extends over at least a part of the contact area of the hub when the needle retention device is in its retaining position, the plurality of fingers comprising at least one first finger defining the first opening extending in a first plane and at least one second finger defining a second opening configured for circumferentially engaging a shoulder of the hub and extending in a second plane, the second plane being parallel with the first plane, wherein the needle retention device has a U-shape between the at least one first finger and the at least one second finger.