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    • 1. 发明公开
    • DRUG DELIVERY DEVICE
    • US20240157045A1
    • 2024-05-16
    • US18281784
    • 2022-03-08
    • SENSILE MEDICAL AG
    • PEER KOSTALMATTHIAS MÜLLER
    • A61M5/155A61M5/142A61M5/24A61M5/315
    • A61M5/155A61M5/14212A61M5/14248A61M5/2455A61M5/31513A61M2205/3331
    • A drug delivery device (1), comprising a delivery unit (3) including a drug container (6), a liquid flow system (7), a pressurized gas source, and a casing (9) enclosing therein the drug container, the pressurized gas source and at least a part of the liquid flow system, the drug container comprising a barrel portion (6a) and a plunger (12) slidably mounted within the barrel portion and sealing the drug (78) within the container at one end of the barrel portion, the drug container being contained within a container receiving cavity (75) of a container casing portion (38) of the casing (9) and the container receiving cavity is fluidically interconnected to a fluid outlet (31) of the pressurized gas source in a gas tight manner, the pressurized gas source configured to supply pressurized gas in the container receiving cavity (75) thus applying pressure on a back end (73) of the plunger for delivery of the liquid drug. The drug delivery device further comprises a pressure sensor (80) fluidically coupled to the container casing (38) for measuring a pressure within the container casing (38), the pressure sensor connected to an electronic control system (47) configured to measure a pressure detected by the pressure sensor over time and to determine from the pressure measurement over time a position of the plunger over time, including a stop in movement of the plunger either due to occlusion in the drug delivery flow system or an end of travel of the plunger within a container corresponding to a container empty position.
    • 3. 发明公开
    • MICROPUMP
    • US20240175431A1
    • 2024-05-30
    • US18389242
    • 2023-11-14
    • SENSILE MEDICAL AG
    • MATTHIAS MÜLLER
    • F04B19/00
    • F04B19/006
    • A pump (1) comprising a stator (4) and a rotor (6) axially and rotatably movable relative to the stator, the stator (4) comprising a piston chamber (10) comprising a radial surface (30), an inlet (3) comprising an inlet mouth (28) formed in the radial surface and an outlet (5) comprising an outlet mouth (29) formed in the radial surface, the rotor (6) comprising a piston portion (13) comprising a radial surface (16), an end face (15) and a non-axisymmetric indent (14) formed between the radial surface (16) and the end face (15) of the piston portion (13), wherein the indent (14) is arranged to overlap at least partially the inlet mouth (28) over a range of angular positions of the rotor relative to the stator corresponding to a pump intake phase, and arranged to overlap at least partially the outlet mouth (29) over a range of angular positions of the rotor relative to the stator corresponding to a pump expel phase, and wherein the radial surface (16) of the piston portion (13) is configured to close the outlet mouth (29) during the pump intake phase, the inlet mouth (28) during the pump expel phase and both the inlet and outlet mouths (28) between the pump intake and expel phases. The stator (4) comprises a flexible elastic membrane (7) sealingly separating the piston portion (13) from the piston chamber (10).
    • 4. 发明公开
    • PUSH ACTUATED DOUBLE FLUID DISPENSER
    • US20240066541A1
    • 2024-02-29
    • US18451881
    • 2023-08-18
    • SENSILE MEDICAL AG
    • ALEXANDRE PERRIERCHRISTIAN HUBERMATTHIAS MÜLLER
    • B05B11/10
    • B05B11/1084B05B11/1028B05B11/1053
    • Push actuated double fluid dispenser (1), comprising a container (2) having a first cavity (4a) and a second cavity (4b) separated from the cap first cavity (4a), and a dispensing pump device (6) in a general form of a cap assembled to the container over the first and second cavities, the dispensing pump device comprising a base part (7) and a cap part (8) including a pump mechanism (16) comprising an elastic flexible pump membrane (18) manually movable from an uncompressed state to a compressed state. The pump mechanism (16) further comprises a separating wall (20) extending from an underside of the pump membrane (18) and inserted into a slot in the base part, the separating wall separating a first pump chamber (22a) from a second pump chamber (22b), both first and second pump chambers provided in a volume below the pump membrane (18), the first pump chamber connected fluidically to a first inlet channel (10a) and a first outlet channel (11a), the second pump chamber connected fluidically to a second inlet channel (10b) and second outlet channel (11b), the inlet channels fluidically interconnecting the respective first and second cavities to the respective first and second pump chambers, valves (13) being positioned between the inlet channels and the pump chambers configured to allow fluid flow only in the direction from the cavities to the respective pump chambers, and the outlet channels interconnecting the pump chambers to an outlet nozzle (12) of the dispenser, outlet valves (24a, 24b) being positioned in the outlet channels configured to allow fluid flow only in the direction from the pump chambers to the outlet nozzle.