US 12,186,542 B2
Detachable needle protection cap for injection devices
Markus Tschirren, Burgdorf (CH); Ulrich Moser, Heimiswil (CH); Marc Fiechter, Konolfingen (CH); Urs Kloetzli, Burgdorf (CH); and Felix Groetzbach, Gerlafingen (CH)
Assigned to Ypsomed AG, Burgdorf (CH)
Filed by Ypsomed AG, Burgdorf (CH)
Filed on Mar. 22, 2022, as Appl. No. 17/700,719.
Application 17/700,719 is a division of application No. 16/353,805, filed on Mar. 14, 2019, granted, now 11,331,437.
Application 16/353,805 is a continuation of application No. PCT/CH2017/000081, filed on Sep. 6, 2017.
Claims priority of application No. 1224/16 (CH), filed on Sep. 21, 2016.
Prior Publication US 2022/0211950 A1, Jul. 7, 2022
Int. Cl. A61M 5/32 (2006.01); A61M 5/20 (2006.01); A61M 5/50 (2006.01)
CPC A61M 5/3202 (2013.01) [A61M 5/20 (2013.01); A61M 5/2033 (2013.01); A61M 5/3204 (2013.01); A61M 5/3245 (2013.01); A61M 5/5086 (2013.01); A61M 2005/2073 (2013.01); A61M 2005/3254 (2013.01); A61M 5/326 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A process for producing a detachable needle protection cap for detaching a needle guard capable of being connected to an injection device, comprising the following steps:
providing a housing defining a longitudinal axis,
sliding and fastening an initial shell part to an external surface of the housing,
providing a further shell part by sliding and fastening the further shell part to the external surface of the housing,
permanently securing all slidably fastened shell parts by sliding and fastening a final shell part to the housing,
wherein the external surface of the housing comprises a plurality of holding points and a plurality of guide elements, and
wherein each of the initial shell part and the further shell part comprises at least one fixing element, a blocking element and at least guide counter-element arranged on an interior of a respective shell part.