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:
Oct. 05, 1993
Filed:
Apr. 20, 1992
Applicant:
Inventors:
Gary N Smith, Libertyville, IL (US);
Donald H Patrick, Gurnee, IL (US);
Assignee:
Abbott Laboratories, Abbott Park, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604164 ; 604168 ; 604900 ;
Abstract
A needle system including a plastic cannula and a stylet, and a procedure utilizing the needle system for positioning the end of a spinal catheter within the subarachnoid space surrounding a patient's spinal cord for continuous administration of anesthetics and/or analgesic medications. The stylet has a pencil-point sharpened end for forming a minimal size opening in the dura defining the subarachnoid space to minimize the loss of cerebrospinal fluid therefrom during this procedure. The cannula has a hub formed of glass-clear plastic, which is provided with viewing recesses.