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:
Jan. 15, 1985
Filed:
Jan. 25, 1982
Applicant:
Inventor:
Gordon E Smith, Carrollton, TX (US);
Assignee:
Quest Medical, Inc., Carrollton, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604246 ; 604250 ; 225450 ;
Abstract
A metering device is disclosed which includes a metering chamber (14) divided into two compartments (22, 24) by a pressure transmitting member in the form of a flexible diaphragm (20). Fluid flow is alternately allowed into each of the two compartments (22, 24) with each compartment filling to the volume of the metering chamber (14) when full so that periodic pulses of intravenous fluid of that precise volume are sent to the patient. The volume of the metering chamber (14) is selected to match a standard intravenous set drop size, for example one-tenth, one-fifteenth, one-twentieth, or one-sixtieth milliliter.