US 2018/0008785 A1 · INJECTION NEEDLE ASSEMBLY

Abstract

The present invention relates to an injection needle assembly having opposite distal and proximal ends, and wherein the assembly comprises an injection needle having proximal and distal pointed ends, wherein the distal pointed end is arranged to penetrate a membrane arranged at the proximal end of a medicament container; a tubular needle holder comprising distal engagement means and proximal engagement means; a tubular cap comprising proximal outer engagement means and proximal inner engagement means; a tubular needle cover comprising first engagement means arranged to cooperate with the proximal engagement means, and second engagement means arranged to cooperate with the proximal outer engagement means of the cap; characterized in that said needle cover is arranged to be displaced from a first position wherein the second engagement means and the proximal outer engagement means prevents the needle cover and the needle holder to be axially displaced by a linear displacement, to a second position wherein the needle cover and the needle holder are distally displaced, and wherein the proximal inner engagement means of the cap and the distal engagement means of the needle holder prevents the needle holder to be proximally displaced but allows the needle cover to be distally displaced.

Claims20

Dependent claims

An injection needle assembly comprising:

a) a tubular needle holder comprising:
a proximal end and a distal end;
a cut-out located on an outer surface of the proximal end,
a first external engagement member located on the distal end, and
an injection needle fixedly connected to and surrounded by the tubular needle holder such that a proximal pointed end of the injection needle extends axially from the proximal end and a distal pointed end of the injection needle extends axially from the distal end,
b) a needle cover having an inside surface, where the needle cover comprises;
an axially extending ledge protruding radially from the inside surface, where the ledge is slidably and removably positioned within the cut-out, and
a first internal engagement member;
and
c) a tubular cap comprising:
a second external engagement member located on a proximal end of the tubular cap and threadedly engaged with the first internal engagement member, and
a second internal engagement located within a central passage of the tubular cap and threadedly engaged with the first external engagement member on the tubular needle holder.

9 more elements

Dependencies are inferred from the claim text.

Injection needle assembly

Life of this patent

Injection needle assembly

Life of this patent

Abstract

Claims20