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. 21, 2025
Filed:
Jun. 29, 2021
Pneuma Systems Corporation, Portsmouth, NH (US);
Jeffrey A. Carlisle, Stratham, NH (US);
Brent Nibarger, Portsmouth, NH (US);
Pneuma Systems Corporation, Portsmouth, NH (US);
Abstract
A system includes a drip chamber. The drip chamber has a proximal end coupled with a drug container and a distal end coupled with fluidic tubing. The drip chamber has a proximal check valve configured to prevent fluid flow in a proximal direction and to allow fluid flow in a distal direction when a cracking pressure threshold is overcome. The drip chamber also includes a distal check valve configured to prevent fluid flow in the proximal direction and to allow fluid flow in the distal direction when a cracking pressure threshold is overcome. The cracking pressure threshold of the proximal check valve and the cracking pressure threshold of the distal check valve in combination is greater than or equal to 1 PSId. The system also includes a pneumatic port between the check valves that is configured to pneumatically couple with a pneumatic feedback control system.