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:
May. 20, 2014
Filed:
Mar. 30, 2011
Joseph John Cefai, Swansea, GB;
Julian Shapley, Cardiff, GB;
Neil Thomas, Swansea, GB;
Matthew Powell, Ebbw Vale, GB;
Mark Stephen Jones, Swansea, GB;
Joseph John Cefai, Swansea, GB;
Julian Shapley, Cardiff, GB;
Neil Thomas, Swansea, GB;
Matthew Powell, Ebbw Vale, GB;
Mark Stephen Jones, Swansea, GB;
Cellnovo Limited, Swansea, GB;
Abstract
A linear capacitance displacement transducer () comprising first () and second () fixed capacitor plate and a dielectric structure () moveable longitudinally within a space () between the first () and second () capacitor plates, the dielectric structure () being operatively coupled to a moveable element (). The capacitor plates and the dielectric material may be cylindrical and disposed coaxially and concentrically. The transducer () enables a displacement sensor that is capable of monitoring liquid levels in a syringe type drug reservoir () with sufficient sensitivity as to allow detection of erroneous drug delivery. The sensor is inexpensive to manufacture and provides reliable performance through robust design.