Patent ID: 11904137
Assignee: NXSTAGE MEDICAL, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of making a needle guard, comprising:
providing a mold having a portion defining a volume, the volume being a hollow cylinder with non-uniform walls with a pair of slots therein, the slots being open at one end and closed at the other end, the pair of slots having a major portion of constant width;
the non-uniform walls being thicker at the other end than at the one end;
filling the volume with polymer and releasing a molded part from said mold;
cooling a molded part resulting from the filling and releasing such that temperature that the widths of the pair of slots is non-uniform after cooling;
the timing of the release and further cooling being such that the one side of the molded part portion corresponding to the other end cools non-uniformly such that said widths become non-uniform.