Brenda R Schultz

US Patent:

6928338, Aug 9, 2005

Filed:

Aug 9, 2002

Appl. No.:

10/215464

Inventors:

Eric E. Buchser - Grandvaux, CH
Brenda K. Schultz - Minneapolis MN, US
Brian T. Dummann - Andover MN, US
Thomas J. Valine - Spring Lake Park MN, US
Thomas P. Crowley - Lino Lakes MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

G06F019/00

US Classification:

700265, 700281, 700285, 604 67

Abstract:

Decision information systems, methods, and computer programs for better informing decisions to use multiple drugs in drug delivery devices, including implantable devices, for drug administration. Executable computer programs and logic embodying methods of the invention can calculate consistent multiple drug mixture amounts and drug delivery flow rates. One program accepts user input indicating a desired first drug dose rate, an initial first drug concentration, a desired second drug dose rate, an initial second drug concentration, and the reservoir size of the drug delivery device. The program method calculates a first drug amount and a second drug amount to combine in a mixture as well as a first drug true concentration in the mixture. The drugs can be mixed consistent with the physician's instructions using the program output. The first drug true concentration can be entered into a programmer device as the only drug concentration entered.

US Patent:

58975284, Apr 27, 1999

Filed:

Apr 30, 1998

Appl. No.:

9/070248

Inventors:

Brenda Kay Schultz - Minneapolis MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 3100

US Classification:

604 49

Abstract:

An access port and method of use is described that has a filter assembly along a fluid flow path through the access port. The access port is in fluid communication with a catheter that is surgically implanted in a patient's brain or intraspinal space. The filter assembly has a filter element and a series of one-way valves. The one-way valves allow the fluid to flow easily across the filter assembly in one direction but prohibit fluid flow through the one-way valves in the opposite direction. The one-way valves are oriented to allow fluid flow from the catheter to a chamber within the access port which can be accessed by a needle. Drug or other medication to be administered to the patient through a needle must pass through the filter before entering catheter to be ultimately administered to the patient.