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:
Apr. 29, 2003
Filed:
May. 29, 1998
Arthur Ashman, Westport, CT (US);
Other;
Abstract
An improved assembly of a syringe and a nozzle tip for aspirating marrow blood from a surgical site and a method for using this improved syringe. The syringe includes a nozzle tip of special construction which has a sleeve portion, which fits on the free end of the barrel of the syringe, and a curved aspirating nozzle end. The nozzle tip includes a filter screen of preselected mesh size. A sufficient amount of marrow blood is aspirated through the curved aspirating nozzle end and the filter screen of the nozzle tip, thereby moving a preselected amount of marrow blood into the barrel of the syringe. The aspirated marrow blood then mixes with the granules of bone regeneration material disposed in the barrel of the syringe to form a viscous fluid mixture therein. The excess marrow blood, if any, is expelled through the curved aspirating nozzle end by applying a moderate manual pressure to the plunger of the syringe. After visual inspection of the formed viscous fluid mixture in the syringe, the nozzle tip is then manually removed from the syringe and the viscous fluid mixture is applied to a surgical site by applying manually pressure on the plunger of the syringe. The filter screen is mounted inside a flange adjoining the sleeve portion in the nozzle tip. This filter screen has openings of predetermined mesh size to prevent the granules of bone regeneration material from exiting through the nozzle tip during the aspirating of the marrow blood into the syringe barrel and prior to the removal of the nozzle from the syringe barrel and the expelling of the viscous mixture to a surgical site.