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:
Feb. 19, 1985
Filed:
Nov. 16, 1982
Leonard D Kurtz, Woodmere, NY (US);
Joseph LiCausi, Port Jefferson Station, NY (US);
BioResearch Inc., Farmingdale, NY (US);
Abstract
An autotransfusion device having a rigid cylindrical housing with an end wall, a movable piston located in the housing, and a deformable collection bag attached between the end wall and the piston is disclosed. When the piston is moved towards the end wall, collapsing the collection bag, the piston is rotated to twist the collection bag and prevent the collection bag from being seized between the housing wall and the piston. The autotransfusion device also includes an automatic air purge unit and an auxiliary air purge unit which is used when the automatic air purge unit malfunctions. In order to facilitate the filling of the collection bag to capacity, a length to diameter ratio of 1.1 is preferred.