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:
Jul. 25, 1989
Filed:
Jul. 30, 1987
Alan A Wanderer, Englewood, CO (US);
William E Sagstetter, Denver, CO (US);
Other;
Abstract
An indwelling placement device having an introducing needle and a catheter for infusing fluids into a blood vessel incorporates a guard for shielding the needle prior to extension from therewithin and for receiving the needle upon retraction thereinto to preclude an operator inadvertently contacting the needle after use. Once retracted, the needle cannot be extended from within the guard. Upon retraction of the needle into the guard, a button mates with the open end of a hollow hub of the needle to prevent outflow of residual blood therefrom. A valve is incorporated with the catheter to preclude blood outflow from the catheter upon withdrawal of the needle and prior to attachment of an intravenous line for conveying a fluid to be intravenously administered.