Handheld medication dosage calculator

• US 20040143346A1
• Filed: 11/24/2003
• Published: 07/22/2004
• Est. Priority Date: 08/27/2001
• Status: Active Grant

• Current Assignee: InformMed, Inc.
• Original Assignee: Francis Mathis, Inc.
• Inventors: Francis, Katherine R, Mathis, Diane M
• Granted Patent: US 6,978,286 B2
• Time in Patent Office: Days
• US Class Current: 700/1
• CPC Class Codes: G16H 20/10 relating to drugs or medications, e.g. for ensuring correct administration to patients
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 70/40 relating to drugs, e.g. their side effects or intended usage
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

A handheld medication dosage calculator (100) and method for comparing an inputted, ordered medication dosage with a known medication dosage range in a database including an input device for inputting a desired drug name, indicating whether the drug is for a child or an adult, an amount of the drugs that are ordered, the body weight or body surface of the patient, an amount of drug available in standard packaging, and the available volume associated with the available drug and a computing mechanism for determining the dosage of the drug to be delivered. The handheld medication dosage calculator (100) provides warnings when the inputted amount of drug exceeds the dose range limits or is incorrect. The handheld medication dosage calculator (100) converts an inputted drug unit of measure into a desired unit of measure. The handheld medication dosage calculator (100) lists generic drug names, trademarked product names, drug classifications and cautionary drug warning information.

Claims

1. (Amended) A portable medical calculator for automatically calculating a medication dose and comparing an inputted, ordered medication dosage with a known medication dosage range in a database, comprising:

a display screen for prompting and receiving certain inputs, receiving entered data, receiving answers to medical questions, displaying various selections for selection, displaying various units of measure, displaying calculations and displaying warning messages;

memory operatively connected to the display screen for receiving and comparing the inputted, ordered medication dosage with the known medication dosage range;

a computing mechanism operatively connected to the memory and the display screen, the computing mechanism;

responsive to the inputs, data, answers, selections and unit of measures at the display screen to cause the memory to provide the medication dose;

responsive to the inputted, ordered medication dosage to cause the memory to compare the inputted, ordered medication dosage with the known medication dosage range;

responsive to the comparison to cause the memory to provide the warning messages to the display screen when the inputted, ordered medication dosage is outside the known medication dosage range; and

responsive to the warning messages to cause the memory to request additional data via the display screen to correct the inputted, ordered medication dosage or continue without correction of the inputted, ordered medication dosage when the warning messages are activated.

2. (Amended) The portable medical calculator for automatically calculating a medication dose and comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 1, wherein the display screen displays a number of times the inputted, ordered medication dosage is outside the known medication dosage range for a certain predetermined period of time.

3. (Amended) The portable medical calculator for automatically calculating a medication dose and comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 2, wherein the display screen displays a number of times the inputted, ordered medication dosage is corrected when the warning messages are activated to within the known medication dosage range for the predetermined period of time.

4. (Amended) The portable medical calculator for automatically calculating a medication dose and comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 2, wherein the display screen displays a number of times the inputted, ordered medication dosage is used when the warning messages are activated without correction of the inputted, ordered medication dosage to within the known medication dosage range for the predetermined period of time.

5. (Amended) A portable medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database, comprising:

an input device for inputting a desired medication name, inputting an indication as to whether the medication is for a child or an adult, inputting an amount of the medication that is ordered, inputting the body weight or body surface area of the patient;

inputting an amount of medication that is available, and inputting the available volume associated with the amount of the available medication;

a computing mechanism for automatically determining the appropriate dose of the medication that is to be administered to the patient and converting the determined dose that is to be administered to the patient and available dosage into desired units of measure; and

a display for displaying the appropriate dose of the medication, displaying cautionary warnings if the selected medication amount exceeds a recommended range of the medication provided in the medication database, displaying product names and classifications for each selected medication, and displaying cautionary product information associated with each selected medication.

6. (Amended) The portable medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 5, wherein the computing mechanism converts the final medication dose into a preferred unit of measure.

7. (Amended) The portable medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 5, further including means for updating the database.

8. (Amended) The portable medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 5, further including a communications system for updating the database from an Internet via a telephone communication line.

9. (Amended) The portable medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 5, further including a PCMCIA card and a chip card having a static read only memory (ROM) for updating the database, wherein the PCMCIA card receives the chip card with an updated database.

10. (Amended) The portable medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 5, further including infrared sensors for updating the database.

11. (Amended) A medication dose calculator or computer for comparing an inputted, ordered medication dosage with a known medication dosage range in a database, comprising:

a display screen for displaying a plurality of drop down screens, data input fields, output display fields, warning display fields and caution display fields;

memory operatively connected to the display screen, the memory containing the database having the known medication dosage range, the drop down screens, the data input fields, the output fields, the warning display fields and the caution display fields;

means for viewing and navigating through a plurality of medications listed by name from a medication name drop down menu on the display screen;

means for selecting a specific medication by name from the drop down menu on the display;

a computing mechanism operatively connected to the memory and the means for selecting the specific medication responsive to the selection of the specific medication;

means for displaying a name of the specific medication from the memory on the display screen;

means for displaying a classification of the specific medication from the memory on the display screen;

means for displaying cautionary information associated with the specific medication from the memory on the display screen;

an adult/pediatric drop down menu on the display screen for selecting an adult or pediatric patient status;

the computing mechanism operatively connected to the memory and the adult/pediatric drop down menu and responsive to the adult or pediatric patient status selection for displaying the medication dose at a medication dose output field on the display screen;

means for inputting a ordered medication dosage for the selected medication in a ordered medication dosage field on the display screen;

a unit of measure drop down menu on the display screen adjacent the ordered medication dosage field for selecting a ordered unit of measure of the ordered medication dosage;

the processor for comparing the inputted, ordered medication dosage with a recommended range of medication dosages for the selected medication and patient status, the processor sending a warning to the display screen if the inputted, ordered medication dosage is outside the recommended range;

a body weight/body surface area drop down menu for designating if a body weight or body surface calculation is applicable to the selected medication and activating a body weight/body surface input display field;

means for inputting a body weight or body surface area value if the body weight/body surface input display field is activated;

body weight/body surface area unit of measure drop down menu on the display screen adjacent the body weight/body surface area input display field for selecting a desired weight unit of measure;

means for inputting a patient'"'"'s body weight and height in a body weight input field and a body height input field, respectively;

the computing mechanism operatively connected to the memory and the body weight/body surface area input display field and the body weight/body surface unit of measure drop down menu and responsive to the inputted and selected data on the display screen for calculating the patient'"'"'s body surface area;

a medication dosage frequency drop down menu for selecting a frequency period for administering the selected medication;

means for inputting a number in a medication dosage frequency input field, the number indicative of the frequency the selected medication will be administered during the frequency period;

means for inputting an amount of the medication available in a medication availability input field on the display screen;

a medication availability unit of measure drop down menu on the display screen adjacent the medication availability input field for selecting an availability unit of measure of the selected medication;

the computing mechanism operatively connected to the memory, the medication availability input field and the medication availability unit of measure drop down menu for converting the unit of measure of the medication amount available to the unit of measure used for the ordered medication dosage and displaying the medication availability number in converted unit of measure in an equivalent output field on the display screen;

means for inputting a volume of the selected medication available for the amount of the medication that is available in a volume availability input field;

a volume unit of measure drop down menu on the display screen adjacent the volume availability input field for selecting a volume unit of measure; and

the computing mechanism operatively connected to the memory, the display screen, the medication dosage range output field, the body weight input field or body surface area input field, the equivalent output field and the volume availability input field for automatically calculating and displaying on the display screen the final medication dose to be administered to the patient.

12. (Amended) The medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 11, wherein the computing mechanism converts the final medication dose into a preferred unit of measure.

13. (Amended) The medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 11, further including means for updating the database.

14. (Amended) The medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 11, further including a communications system for updating the database from an Internet via a telephone communication line.

15. (Amended) The medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 11, further including a PCMCIA card and a chip card having a static read only memory (ROM) for updating the database, wherein the PCMCIA card receives the chip card with an updated database.

16. (Amended) The medication dose calculator for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 11, further including infrared sensors for updating the database.

17. (Cancelled)

18. (Cancelled)

19. (Cancelled)

20. (Cancelled)

21. (Cancelled)

22. (Cancelled)

23. (Amended) A method for comparing an inputted, ordered medication dosage with a known medication dosage range in a database, comprising the steps of:

displaying a plurality of drop down screens, data input fields, output display fields, warning display fields and caution display fields on a display screen;

operatively connecting memory to the display screen, the memory containing the database having the known medication dosage range, the drop down screens, the data input fields, the output fields, the warning display fields and the caution display fields;

viewing and navigating through a plurality of medications listed by name from a medication name drop down menu on the display screen;

selecting a specific medication by name from the drop down menu on the display;

displaying a trademark name of the specific medication from the memory on the display screen;

displaying a generic name of the specific medication from the memory on the display screen;

displaying a classification of the specific medication from the memory on the display screen;

displaying cautionary information associated with the specific medication from the memory on the display screen;

selecting an adult or pediatric patient status on an adult/pediatric drop down menu;

automatically computing and displaying the medication dose at a medication dose output field on the display screen;

inputting an ordered medication dosage for the selected medication in an ordered medication dosage field on the display screen;

selecting an ordered unit of measure of the ordered medication dosage on a unit of measure drop down menu on the display screen adjacent the ordered medication dosage field;

comparing the inputted ordered medication dosage with a recommended range of medication dosages for the selected medication and patient status;

sending a warning to the display screen if the inputted ordered medication dosage is outside the recommended range;

designating if a body weight or body surface area calculation is applicable to the selected medication via a body weight/body surface area drop down menu and activating a body weight/body surface input display field;

inputting a body weight or body surface area value if the body weight/body surface input display field is activated;

selecting an ordered weight unit of measure via a body weight/body surface area unit of measure drop down menu on the display screen adjacent the body weight/body surface area input display field;

inputting a patient'"'"'s body weight and height in a body weight input field and a body height input field, respectively;

computing and calculating the patient'"'"'s body surface area;

selecting a frequency period for administering the selected medication;

inputting a number in a medication dosage frequency input field, the number indicative of the frequency the selected medication will be administered during the frequency period;

inputting an amount of the medication available in an availability medication input field on the display screen;

selecting an availability unit of measure of the selected medication via a medication availability unit of measure drop down menu on the display screen adjacent the medication availability input field;

computing and converting the unit of measure of the medication amount available to the unit of measure used for the ordered medication dosage and displaying the medication availability number in a converted unit of measure in an equivalent output field on the display screen;

inputting a volume of the selected medication available for the patient for the amount of the medication that is available in a volume availability input field;

selecting a volume unit of measure; and

automatically computing, calculating and displaying on the display screen a final medication dose to be administered to the patient.

24. (Amended) The method for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 23, further comprising the steps of computing and converting the final medication dose into a preferred unit of measure.

25. The method for comparing an inputted, ordered medication dosage with a known medication dosage range in a database according to claim 23, further comprising the step of updating the database.

26. (Twice Amended) A portable device for automatically calculating a medication dose and comparing an inputted, ordered medication dosage with a known medication dosage range, comprising:

a display screen for displaying a plurality of preconfigured prompts and medical information;

an input mechanism operatively associated with said display screen, and for selecting choices among the preconfigured prompts, and inputting medical data;

a memory operatively connected to the input mechanism and display screen, the memory containing said plurality of preconfigured prompts and storing the known medication dosage range; and

a processor connected to the display screen, the memory, and the input mechanism, for comparing the inputted, ordered medication dosage with the known medication dosage range;

for sending a warning message to the display screen when the inputted, ordered medication dosage is outside the known medication dosage range; and

for permitting continuation with or without correction of the inputted, ordered medication dosage when the warning message is activated.

27. (Twice Amended) A portable device as set forth in claim 26, wherein the warning message is displayed without disabling the display screen.

28. (Amended) A portable device for automatically calculating a drug dose in a clinical setting, the drug dose being defined as a calculated volume required to deliver an ordered dosage from a larger volume available in specified concentration and the dosage being definded as an amount of medicine by a) quantity of measure, b) quantity of measure per weight, c) quantity of measure per time or d) quantity of measure per weight and time, including:

a computer having a memory;

means for entering data into the computer upon which the drug dose is calculated;

the computer having means for automatically calculating the calculated volume required to deliver an ordered dosage from a larger volume available in specified concentration in response to the entered data;

a display screen for displaying the calculated dose volume; and

the device being capable of calculating doses from all four types of said quantities of measure a) through d).

29. The portable device for automatically calculating a drug dose in a clinical setting, as set forth in claim 28, wherein the display screen for displaying the calculated volume does not display the mathematical formula therefor.

30. The portable device for automatically calculating a drug dose in a clinical setting, as set forth in claim 29, wherein the computer checks the dosage ordered against a dosage database.