B. Braun Medical Inc.

Roberta Stavely

Roger J Hill

Gale White

Michael J Zakrewski

Ruth Kummerlen

Charlotte Ray

David J Harrison

Harry C Copp

Joe C Crittendon

A medical infusion pump with a bar code reader having simplified and enhanced security features. The infusion pump with bar code reader is comprised of an infusion pump with a housing, a control display screen and control software for operating the infusion pump according to input infusion data. A bar code reader is contained in the infusion pump housing and operatively attached to communicate scanned bar code infusion data to the pump display screen and to the control software. At least one initialization button for starting execution of a bar code scanning program is operatively connected through circuitry in the pump, the program activating the bar code reader to scan for an authorized user code, for an authorized user ID code, for a patient ID code, and for infusion data compatible for operating the infusion pump. A confirmation program and confirmation buttons manually operable by the authorized user. Acceptable scanning of authorization code, authorized user ID code, patient ID code and infusion data must be manually confirmed by the authorized user prior to activating the pump to infuse fluids according to the infusion data.

Security infusion pump with bar code reader

A rotation control for a device to be rotated includes a variable speed DC motor having a constant rotational speed upon receiving a selected fixed voltage electrical input power from an adjustable electrical input power supply connected to the motor for supplying the selected fixed voltage. A switch circuit is connected between the motor and the power supply activatable in response to a first electrical signal to turn the motor 'on' and activatable in response to a second electrical signal to turn the motor 'off'. A selectable frequency, regular interval electrical signal device is connected to the switch circuit to provide electrical signals to activate the switch circuit to turn the motor 'on' at regular intervals. An encoder wheel is coupled to the device to be rotated and to the motor for rotation of the timing disk at a speed proportional to the constant rotational speed of the motor. The timing disk has a plurality of openings around the disk with predetermined spacing there between. The spacing corresponds to a desired amount of device rotation. A light sensor is operatively positioned adjacent to the encoder wheel for detecting the spaced openings and connected to the switch circuit to provide the electrical signal to turn the motor off each time a next one of the openings is detected by the sensor thereby allowing the device to traverse the desired amount of device rotation during each regular interval that the motor is turned on.

Volumetric flow equalizing drive control wheel

Growing community of inventors

Carrollton, TX, United States of America

Roberta Stavely