# US 4,943,279 A · Medical pump with infusion controlled by a detachable coded label > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,943,279 A - Document ID: US4943279A - Status: Granted - Kind: A - Application number: 07/251,563 - Filed: 1988-09-30 - Granted: 1990-07-24 - Earliest claimed: 1988-09-30 - Assignees: C. R. Bard, Inc. - Inventors: Nicholas G. Samiotes; Paul Lucas - Web page: https://patentgrep.com/patent/US4943279A ## CPC - A61M 5/1456: {with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir} - A61M 5/172: electrical or electronic - G16H 20/17: delivered via infusion or injection - A61M 2205/6018: providing set-up signals for the apparatus configuration - A61M 2205/6036: characterised by physical shape, e.g. array of activating switches - A61M 2205/6054: Magnetic identification systems - Y10S 128/13: Infusion monitoring - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract This invention relates to a microprocessor-based medical pump with a number of manual controls. The operation of this pump requires the attachment of a magnetic label to the front of the pump. This magnetic label includes a given number of strong permanent magnets in a pre-determined configuration which indicate the pharmaceutical product type and concentration to be infused. The magnetic label also changes the visual scales around the manual controls. Hall Effect sensors read the pre-determined configuration and send the data to the microprocessor which also reads the manual controls. Using the pre-determined configuration data and the manual control data, the microprocessor determines the desired infusion parameters. ## Claims ### Claim 1 An apparatus comprising: pumping means; means for controlling operation of said pumping means, including sensing means and manual controls for manually setting the desired operation of said pumping means; and indicator means, separable from said means for controlling, which includes: information in a pre-arranged configuration for a selected mode of pump operation; and visual scales corresponding to said pre-arranged configuration, said visual scales indicating the desired setting for said manual controls when said indicator means is placed adjacent to said manual controls; wherein said sensing means senses said pre-arranged configuration and is responsive thereto to alter calculations for controlling said pumping means in accordance with said pre-arranged configuration and with said visual scales when said indicator means is placed adjacent to said manual controls. ### Claim 2 (depends on 1) The apparatus of claim 1 wherein said information is encoded by positioning of magnets. ### Claim 3 (depends on 1) The apparatus of claim 1 wherein the apparatus is a medical pump and wherein said pumping means includes means for engaging a syringe. ### Claim 4 (depends on 1) The apparatus of claim 1 wherein said manual controls include a patient weight control knob. ### Claim 5 An apparatus comprising: pumping means; means for controlling operation of said pumping means, including manual controls; and indicator means which includes information in a pre-arranged configuration of magnets for a selected mode of pump operation, wherein said means for controlling senses said pre-arranged configuration when said indicator means is placed adjacent to said means for controlling and wherein said means for controlling controls said pumping means in accordance with said pre-arranged configuration; wherein said indicator means further includes visual scales for said manual controls when said indicator means is placed adjacent to said means for controlling, wherein said visual scales are in accordance with said pre-determined configuration and wherein said means for controlling uses said pre-arranged configuration to alter the calculations in accordance with said visual scales; and wherein said indicator means is held in position adjacent to said means for controlling by magnetic means. ### Claim 6 (depends on 5) The apparatus of claim 5 wherein said means for controlling further includes Hall Effect sensors which sense said pre-arranged configuration of said magnets. ### Claim 7 (depends on 6) The apparatus of claim 6 wherein said Hall Effect sensors sense the polarity of said magnets in said pre-arranged configuration. ### Claim 8 (depends on 7) The apparatus of claim 7 wherein said pumping means drives a medical syringe. ### Claim 9 (depends on 8) The apparatus of claim 8 wherein said means for controlling includes a microprocessor. ### Claim 10 (depends on 8) The apparatus of claim 8 wherein said means for controlling allows said pumping means to operate only if a predetermined number of said magnets are in said pre-determined configuration. ### Claim 11 (depends on 8) The apparatus of claim 8 wherein said pumping means can run at a constant flow rate. ### Claim 12 (depends on 8) The apparatus of claim 8 wherein said pumping means can run at a constant flow rate for a given period. ### Claim 13 (depends on 12) The apparatus of claim 12 wherein said manual controls include a patient weight control knob, wherein said given period is determined from a setting of said patient weight control knob. ### Claim 14 (depends on 8) The apparatus of claim 8 further including lights for indicating said selected mode of operation. ### Claim 15 (depends on 8) The apparatus of claim 8 further including a multi-character display for indicating total flow amount from said pumping means. ### Claim 16 (depends on 5) The apparatus of claim 5 wherein the apparatus is a medical pump and wherein said pumping means includes means for engaging a syringe.