US 12,485,220 B2
Infusion set for an infusion device
Rolf Marggi, Bern (CH); Christoph Renggli, Grenchen (CH); and Andreas Zurflüh, Hasle-Rüegsau (CH)
Assigned to Ypsomed AG, Burgdorf (CH)
Filed by Ypsomed AG, Burgdorf (CH)
Filed on Apr. 21, 2021, as Appl. No. 17/236,475.
Application 17/236,475 is a continuation of application No. PCT/IB2019/058636, filed on Oct. 10, 2019.
Claims priority of application No. 18201927 (EP), filed on Oct. 23, 2018.
Prior Publication US 2021/0236724 A1, Aug. 5, 2021
Int. Cl. A61M 5/162 (2006.01)
CPC A61M 5/162 (2013.01) [A61M 2205/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An infusion set, comprising:
a base part configured for attaching to skin of a patient, the base part comprising a proximal side and a distal side, wherein a cannula and an annular groove are provided on the distal side of the base part, the cannula configured for supplying a liquid medicament into the patient, and wherein a projection and recess arrangement is provided on the proximal side of the base part;
a connector part comprising a supply line configured for connecting to an infusion device, the connector part comprising a proximal and a distal side, wherein a projection is provided on the distal side of the connector part,
wherein when the base part and the connector part are correctly or completely rotatably connected to one another in order to administer the liquid medicament from the infusion device to the patient, the projection of the connector part is in an engagement with the annular groove of the base part such that the projection slides in the annular groove and the connector part and the base part are rotatable relative to one another through any desired rotational angle noiselessly and/or without generating a tactile signal to thereby indicate that the connector part is correctly or completely connected to the base part, and
wherein when rotatably connected and the connector part is incorrectly or incompletely connected with the base part, the projection of the connector part is in an engagement with the projection and recess arrangement of the base part such that relative rotation between the connector part and the base part causes the projection to slide over the projection and recess arrangement and generate an acoustic and/or a tactile signal to thereby indicate the connector part is incorrectly or incompletely connected with the base part.