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. 16, 1999
Filed:
Sep. 05, 1996
Joseph Gross, Dublin, IE;
Elan Medical Technologies Limited, Athlone, IE;
Abstract
A liquid delivery pumping device for the delivery of liquids enterally or parenterally comprises a housing including a gas generating chamber, wherein a gas is generated intermittently when two reactants, such as the components of an effervescent couple, are caused to react, a pumping chamber for a reciprocating pumping unit operable by the gas and to which chamber the gas is conveyed once generated, the pumping unit forming part of a mechanism which receives and regulates the liquid to be delivered in response to the reciprocation of the pumping unit, and means for controlling the gas pressure within the pumping chamber to enable controlled reciprocation of the pumping unit. The device provides precisely controlled rates of liquid delivery to a patient irrespective of the viscosity of the liquid to be delivered.