U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Medical infusion device

Patent 4838857 Issued on June 13, 1989. Estimated Expiration Date: Icon_subject February 9, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2761445

3425416

3701345

Flow control for an intravenous feeding system
Patent #: 4137915
Issued on: 02/06/1979
Inventor: Kamen

Medical apparatus
Patent #: 4191187
Issued on: 03/04/1980
Inventor: Wright

Metering apparatus for a fluid infusion system with flow control station
Patent #: 4210138
Issued on: 07/01/1980
Inventor: Jess ,   et al.

Method and apparatus for metered infusion of fluids
Patent #: 4278085
Issued on: 07/14/1981
Inventor: Shim

Mechanism for screw drive and syringe plunger engagement/disengagement
Patent #: 4424720
Issued on: 01/10/1984
Inventor: Bucchianeri

Microprocessor controlled intravenous feed system
Patent #: 4457750
Issued on: 07/03/1984
Inventor: Hill

Injection apparatus for the dosed delivery of a liquid
Patent #: 4465473
Issued on: 08/14/1984
Inventor: Ruegg

More ...

Inventors

Application

No. 07/013182 filed on 02/09/1987

US Classes:

604/67, Sensor controls pump, motor, or pressure driven means604/506, Therapeutic material introduced or removed through a piercing conduit (e.g., trocar) inserted into body604/65Material flow varying means controlled by condition responsive sensor

Examiners

Primary: Cohen, Lee S.
Assistant: Shay, David M.

Attorney, Agent or Firm

International Class

A61M 5/145 (20060101)

Abstract

A medication infusion device comprises a retainer for holding a medication-containing receptacle of the type which is actuatable to expel the contents of medication therefrom. A sensor is included for sensing a characteristic related to the amount of medication within the receptacle. A timing device allows the selection of the period of time over which the contents of the receptacle are to be expelled. A control mechanism, associated with the sensor and the timing device, actuates the receptacle to expel its contents at a controlled rate over the selected period of time.

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