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. 21, 1998
Filed:
Jun. 07, 1995
Robert H Johnson, Fountain Green, UT (US);
Gordon S Reynolds, Bountiful, UT (US);
Abbott Laboratories, Abbott Park, IL (US);
Abstract
A flush device for an intravenous blood pressure monitoring system has a main body which includes a continuous capillary flow channel and a fast flush channel. The continuous capillary flow channel is separated from the fast flush channel by a median wall. A fast flush opening in the median wall is blocked by an elastomeric member. When the member is distended, the fast flush opening is unblocked. An alternative embodiment of the fast flush device has a tubular body with a capillary channel formed on an inner wall. An elastomeric member contained within the tubular body enables flow to the capillary channel when the elastomeric member is in an initial position. When the elastomeric member is in a distended position fluid is allowed to overflow the capillary channel thus permitting a fast flush flow. Another alternative embodiment of the flush device comprises a tubular body having a cylinder disposed within, with a fluid entry chamber defined in an annular space and a fluid exit chamber defined by the interior of the cylinder. A microbore in the cylinder wall enables continuous capillary flow from the inlet to the outlet. A fast flush opening, blocked by an elastomeric member, is also provided in the cylinder wall. When the member is distended, the fast flush opening is unblocked.