MICROFLUIDIC EJECTION ELEMENT AND METHOD OF OPERATION OF A MICROFLUIDIC EJECTION ELEMENT HAVING A SIMPLIFIED INTERFACE

• Main Authors: BUSH, Stephan, Gary, MARRA, Michael, Anthony, III, EDELEN, John, Glenn, PATEL, Viren, N
• Format: Patent
• Language: English; French; German
• Published: 02.06.2021
• Subjects: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE; CORRECTION OF TYPOGRAPHICAL ERRORS; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; MEDICAL OR VETERINARY SCIENCE; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

A control circuit for a thermally-activated microfluidic ejection element and a method of dispensing a fluid composition from the same is provided. The thermally-activated microfluidic ejection element includes a plurality of nozzles and a thermal actuator associated with each nozzle, and a control circuit that includes: a logic circuit that increments through a pre-determined sequence, wherein the sequence is defined by the physical layout of the thermally-activated microfluidic ejection element; a first input in electrical communication with the logic circuit; a second input in electrical communication with each thermal actuator, wherein the first input and second input are used to select and energize each thermal actuator on the thermally-activated microfluidic ejection element.