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.
Patent No.:
Date of Patent:
May. 05, 1987
Filed:
Jul. 15, 1985
Scott D Augustine, San Diego, CA (US);
Douglas J Augustine, Sandstone, MN (US);
Other;
Abstract
A device for indicating the penetration of a needle into a vein, artery, lumen, or other cavity in a patient's body includes a filament that is moved through the needle toward its sharpened end. As the needle is inserted through bodily tissue, the distal end of the filament is retained by the tissue at the needle's sharpened end. The filament is loaded with compressive force so that the distal tip is moved through the end of the needle when the end enters a space. Penetration is indicated by the sudden movement of a visible indicator attached to the filament that is caused when the retention of the filament's distal tip is released by the penetration of the needle's end into the space.