Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Patent
1993-06-14
1995-05-30
Bertsch, Richard A.
Pumps
Condition responsive control of pump drive motor
By control of electric or magnetic drive motor
417474, 417326, 417 53, F04B 4308
Patent
active
054196841
ABSTRACT:
An infusion pump for regulating fluid flow through the flow path of an IV tubing set for intravenous administration to a patient. The pumping mechanism of the infusion pump comprises a reversible motor having a drive shaft with a wheel mounted thereon. A valve is provided which is adapted for reversibly closing the flow path through the IV tubing set, and a swing arm is provided. The swing arm has a wheel-engaging portion adapted for engaging the wheel, and an actuator portion operatively linked with the valve to actuate the valve. The arrangement is such that, when the motor is turning the drive shaft in a first direction, the swing arm is moved towards a first position where the actuator portion allows the valve to move to its open position to open the flow path. When the motor is reversed to turn the drive shaft in a second direction opposite the first direction, the swing arm is moved to a second position where the actuator portion moves the valve to its closed position to close the flow path. An infusion therapy system and a method of use of the infusion pump are also disclosed.
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"AVI Guardian.RTM. 100 and Micro 110 Volumetric Infusion Pump Service Manual"; AVI Part No. 936023 D; 1984.
Folder entitled "AVI Infusion Therapy Systems `When it all depends on you, depend on us` 3M Health Care" which includes the following brochures: AVI 200A Infusion Pump; AVI Micro 210A Infusion Pump; AVI 400A Infusion Pump; AVI 840 Dual Channel Infusion Pump; AVI Micro 845 Dual Channel Infusion Pump; AVI 285 and 285CM Micro Infusion Pump; AVI 480 and 480CM Infusion Pump; AVI 600 Syringe Pump; AVI Administration Sets--Infusion Pump Sets; Medifuse.RTM. Setting the Standard for Homecare Patient IV Delivery Systems; AVI Nurse Clinician Services; 3M IV Poles--3M delivers space-saving solutions; and The 3M IV Flow Regulator.
Izen Paul G.
Plumb Michael R.
Smith Rodney J.
Stolle Steven H.
Struble Kent R.
Bauer Stephen W.
Bertsch Richard A.
Griswold Gary L.
Kirn Walter N.
Korytnyk Peter
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