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:
Aug. 23, 2011
Filed:
Apr. 24, 2009
Brian W. Donovan, San Jose, CA (US);
Andrea Y. Leung, Milpitas, CA (US);
Lisanne Eng, Campbell, CA (US);
David P. Thompson, Mountain View, CA (US);
Robert B. Hubler, Woodinville, WA (US);
Stephanie Ann Barnes, Redmond, WA (US);
Thomas C. Arends, Bellevue, WA (US);
Keith Schubert, Redmond, WA (US);
Paul C. Leonard, Woodinville, WA (US);
Paul F. Muller, San Carlos, CA (US);
Brian W. Donovan, San Jose, CA (US);
Andrea Y. Leung, Milpitas, CA (US);
Lisanne Eng, Campbell, CA (US);
David P. Thompson, Mountain View, CA (US);
Robert B. Hubler, Woodinville, WA (US);
Stephanie Ann Barnes, Redmond, WA (US);
Thomas C. Arends, Bellevue, WA (US);
Keith Schubert, Redmond, WA (US);
Paul C. Leonard, Woodinville, WA (US);
Paul F. Muller, San Carlos, CA (US);
Kyphon SARL, Neuchatel, CH;
Abstract
A syringe for performing a medical procedure includes a pressure sensor, a volume sensor, and a compensation circuit. The volume sensor measures a volume of a flowable material that is dispensed from the syringe, the pressure sensor measures a pressure being applied to the flowable material, and the compensation circuit calculates a delivered volume of the flowable material by accounting for system compliance (expansion) as the pressure is increased. By compensating for system compliance in this manner, a syringe can be used in high pressure procedures while still providing accurately controllable material delivery.