The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 22, 2025

Filed:

Jan. 12, 2024
Applicant:

Nxstage Medical, Inc., Lawrence, MA (US);

Inventors:

James M. Brugger, Newburyport, MA (US);

Christopher D. Pierson, Southborough, MA (US);

Steven C. Alford, Marysville, WA (US);

Assignee:

NxStage Medical, Inc., Lawrence, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/50 (2006.01); A61B 5/15 (2006.01); A61M 5/162 (2006.01); A61M 25/06 (2006.01); A61M 5/32 (2006.01);
U.S. Cl.
CPC ...
A61M 5/1626 (2013.01); A61B 5/150641 (2013.01); A61B 5/15074 (2013.01); A61B 5/150885 (2013.01); A61M 5/50 (2013.01); A61M 25/0631 (2013.01); A61M 25/0637 (2013.01); A61B 5/15003 (2013.01); A61B 5/150259 (2013.01); A61B 5/150389 (2013.01); A61B 5/150503 (2013.01); A61M 5/3202 (2013.01); A61M 5/321 (2013.01); A61M 5/3245 (2013.01); A61M 5/3272 (2013.01); A61M 2205/273 (2013.01);
Abstract

A method of making a needle guard includes 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 walls are thicker at the other end than at the one end. The method includes filling the volume with polymer and releasing a molded part from said mold and 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 needle guard has upper and lower jaws defining a channel and coming together at a hinge. A winged needle can be inserted between the jaws, with the wings of the winged needle passing through slots between the jaws.


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