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    PUMP CONTROLLER AND CONTROL METHOD WITH TEMPERATURE INTEGRATION AND/OR COMPLIANCE DETERMINATION
    4.
    发明公开
    PUMP CONTROLLER AND CONTROL METHOD WITH TEMPERATURE INTEGRATION AND/OR COMPLIANCE DETERMINATION 审中-公开

    公开(公告)号：US20240335607A1

    公开(公告)日：2024-10-10

    申请号：US18427398

    申请日：2024-01-30

    申请人： Fresenius Kabi USA, LLC

    发明人： Lino Gonzalez ,  Michael Scarsella ,  Benjamin Powers

    IPC分类号： A61M5/145

    CPC分类号： A61M5/14586 ,  A61M2205/3331 ,  A61M2205/3368

    摘要： A method includes calculating a volume of fluid in a pumping chamber when the chamber is not full or empty based on pressure and temperature measurements taken during a negative full-volume state, a positive full-volume state, and an empty-volume state, and an infusion system includes a controller configured to carry out such calculation. Such method, or a separate method, may measure temperature and pressure of a common volume and a pumping chamber, wherein the pressure is measured using a pressure sensor and the temperature is measured using a temperature sensor, optionally one that measures the temperature of the pressure sensor, and calculate a volume of fluid in the pumping chamber based on ideal gas law and the pressure and temperature measurements, and such infusion system, or a separate system, includes a controller configured to carry out such measurement and calculation.

    Constant pressure syringe for surgical use
    8.
    发明授权
    Constant pressure syringe for surgical use 有权

    公开(公告)号：US12102747B2

    公开(公告)日：2024-10-01

    申请号：US17389420

    申请日：2021-07-30

    申请人： Lipocosm, LLC

    发明人： Roger K. Khouri ,  Murat Kuru

    IPC分类号： A61M1/00 ,  A61M5/142 ,  A61M5/145 ,  A61M39/24

    CPC分类号： A61M1/67 ,  A61M1/71 ,  A61M1/84 ,  A61M1/87 ,  A61M1/89 ,  A61M1/892 ,  A61M1/895 ,  A61M1/81 ,  A61M5/14216 ,  A61M5/1452 ,  A61M39/24 ,  A61M2202/0021 ,  A61M2202/08 ,  A61M2205/073 ,  Y10T137/7838 ,  Y10T137/87249

    摘要： A closed system for harvesting fat through liposuction, concentrating the aspirate so obtained, and then re-injecting the concentrated fat into a patient comprises as its main components a low pressure cannula having between about 7 to 12 side holes of about 1-2 mm by 2.0 to 4.0 mm, a spring loaded syringe holder with a constant force or coiled ribbon spring to apply a substantially constant pressure over the fill excursion of the plunger, and a preferably flexible collection bag which is also preferably graduated, cylindrical over most of its body and funnel shaped at its bottom, all of which are connected through flexible tubings to a multi-port valve. The multi-port valve has two flutter/duck bill valves which restrict the fluid flow to a one way direction which effectively allows the syringe to be used to pump fat out of a patient and into a collection bag in a continuous manner. After the bags are centrifuged to concentrate the fat, the excess fluids are separated and the valve is re-connected to permit the syringe pump to reverse fluid flow to graft the concentrated fat back into the patient.

    SYSTEMS AND METHODS FOR DRIVING ELECTROMAGNETIC MOTORS OF MEDICAMENT INFUSION PUMPS
    9.
    发明公开
    SYSTEMS AND METHODS FOR DRIVING ELECTROMAGNETIC MOTORS OF MEDICAMENT INFUSION PUMPS 审中-公开

    公开(公告)号：US20240316265A1

    公开(公告)日：2024-09-26

    申请号：US18596792

    申请日：2024-03-06

    申请人： Medtronic MiniMed, Inc.

    发明人： Roger E. Smith ,  Fatemeh Delijani

    IPC分类号： A61M5/168 ,  A61M5/145

    CPC分类号： A61M5/16831 ,  A61M5/14566 ,  A61M2005/14506

    摘要： Systems and methods for driving electrical motors of medicament infusion pumps are disclosed. An infusion device for delivering a medicament to a body of a user can include a reservoir to contain medicament, a dispenser to cause medicament to be moved out of the reservoir, and a motor operably coupled to the dispenser. The motor can include a stator defining a central opening and a rotor removably disposed therein. A controller coupled to the stator is configured to (1) supply a first signal to the stator to cause the rotor to rotate in a first direction for a first rotational amount less than a full rotation; and (2) to then supply a second signal to the stator to cause the rotor to rotate in a second, opposite direction for a second rotational amount greater than the first, thereby causing medicament to be dispensed from the reservoir via the dispenser.

    Agent delivery devices
    10.
    发明授权
    Agent delivery devices 有权

    公开(公告)号：US12097359B2

    公开(公告)日：2024-09-24

    申请号：US17139139

    申请日：2020-12-31

    申请人： Boston Scientific Scimed, Inc.

    发明人： Joseph King ,  Andrew Pic ,  John Favreau

    IPC分类号： A61M5/315 ,  A61B1/015 ,  A61M5/145 ,  A61M31/00

    CPC分类号： A61M5/3157 ,  A61M5/14526 ,  A61M31/00 ,  A61B1/015 ,  A61M2205/581

    摘要： A medical device may comprise a flexible sheath defining a lumen extending from a proximal end of the sheath to a distal end of the sheath. The sheath may include a piston slidably received within the lumen; an agent disposed in the lumen distal to the piston; and pneumatic fluid disposed in the lumen proximal of the piston. The device may also comprise handle at a proximal end of the sheath, the handle including: a plunger received in a reservoir, wherein the reservoir is in fluid communication with the lumen. The reservoir may contain pneumatic fluid. The handle may also include a gear. An amount of rotation of the gear in a first direction may correspond to an amount that the plunger advances distally in the reservoir to displace pneumatic fluid. The displacement of the pneumatic fluid may advance the piston distally to deliver an amount of agent from the sheath.