Automated intravenous monitoring device

• US 8,692,678 B2
• Filed: 06/04/2010
• Issued: 04/08/2014
• Est. Priority Date: 06/04/2009
• Status: Expired due to Fees

• Current Assignee: Warner Tod H, Wayne Carman
• Original Assignee: Warner Tod H
• Inventors: Carman, Wayne, Warner, Tod. H.
• Primary Examiner(s): Nguyen, Hung T.
• Application Number:
  US12/794,042
• Publication Number:
  US 20100309005A1
• Time in Patent Office: 1,404 Days
• Field of Search: 340/606, 340/605, 340/616, 340/573.1, 340/603, 340/612, 340/618, 604/30, 604/246, 604/251, 604/253, 604/31, 604/67, 604/65
• US Class Current: 340/606
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 5/1689 Drip counters
• CPC Class Codes: G01F 15/06 Indicating or recording devices
• CPC Class Codes: G01F 15/0755 involving digital counting
• CPC Class Codes: G01F 3/00 Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow measuring a proportion of the volume flow G01F5/00
• CPC Class Codes: G16H 20/17 delivered via infusion or injection

Abstract

An automated intravenous (IV) monitoring device is provided comprising a sensor for sensing drips passing through an IV drip chamber, a processing unit for calculating the total infused volume over a predetermined period of time, and a display for displaying the total infused volume. The IV monitoring device preferably also calculates and displays the flow rate of the drips. Additionally, an alarm can be activated if the flow rate drops below a predetermined value. A method of providing data pertaining to IV drips being infused into a body is also disclosed.

Claims

1. An automated intravenous (IV) monitoring device comprising:

a sensor for sensing drips passing through an IV drip chamber and for outputting information indicative of the drips;

a processing unit for receiving the information from the sensor, the processing unit being configured to;

track a total infused volume over a predetermined period of time by incrementing a value in a memory according to the information, the predetermined period of time being adjustable to differ from an interval of time between observations of the monitoring device; and

calculate an instantaneous flow rate using the information;

a display in communication with the processing unit, the display configured to display the total infused volume over the predetermined period of time and the instantaneous flow rate separately to enable the total infused volume over the predetermined period of time to reflect variations in the instantaneous flow rate between the observations of the monitoring device; and

a cylindrical groove for receiving the drip chamber, the cylindrical groove comprising a circumferential indent for receiving a collar on the drip chamber to secure the drip chamber within the cylindrical groove.

2. The IV monitoring device of claim 1 further comprising an alarm configured to activate if the instantaneous flow rate is below a predetermined value.

3. The IV monitoring device of claim 2 wherein the alarm comprises a light emitting diode.

4. The IV monitoring device of claim 1 further comprising a reset mechanism, wherein the value in the memory is reset by activation of the mechanism.

5. The IV monitoring device of claim 1 wherein the monitoring device is removably mountable on the drip chamber.

6. The IV monitoring device of claim 1 wherein the sensor is located on an inside wall of the cylindrical groove to be in close proximity with the drip chamber when the drip chamber is received in the groove.

7. The IV monitoring device of claim 1 wherein the monitoring device is battery-operated and includes a “

low battery”

indicator.

8. A method of providing data pertaining to IV drips being infused into a body, the method comprising the steps of:

a sensor of a monitoring device detecting the presence of a drip from an IV drip chamber;

the sensor forwarding information to a processing unit, the information being indicative of the drip;

the processing unit tracking a total infused volume over a predetermined period of time by incrementing a value in a memory according to the information, the predetermined period of time being adjustable to differ from an interval of time between observations of the monitoring device;

the processing unit calculating an instantaneous flow rate using the information; and

displaying the total infused volume over the predetermined period of time and the instantaneous flow rate separately on a display to enable the total infused volume over the predetermined period of time to reflect variations in the instantaneous flow rate between the observations of the monitoring device;

wherein the monitoring device comprises a cylindrical groove for receiving the drip chamber, the cylindrical groove comprising a circumferential indent for receiving a collar on the drip chamber to secure the drip chamber within the cylindrical groove.

9. The method of claim 8 further comprising the step of activating an alarm if the instantaneous flow rate is below a predetermined value.

10. The method of claim 8 wherein the value in the memory is resetable using a reset mechanism.

11. The method of claim 8 wherein the monitoring device is battery-operated, and further comprising the step of indicating on the display when the battery needs to be replaced.

12. A non-transitory computer readable medium having stored thereon computer readable instructions for performing a method of providing data pertaining to IV drips being infused into a body, the computer readable instructions including instructions to perform steps comprising:

a sensor of a monitoring device detecting the presence of a drip from an IV drip chamber;

the sensor forwarding information to a processing unit, the information being indicative of the drip;

the processing unit tracking a total infused volume over a predetermined period of time by incrementing a value in a memory according to the information, the predetermined period of time being adjustable to differ from an interval of time between observations of the monitoring device;

the processing unit calculating an instantaneous flow rate using the information; and

displaying the total infused volume over the predetermined period of time and the instantaneous flow rate separately on a display to enable the total infused volume over the predetermined period of time to reflect variations in the instantaneous flow rate between the observations of the monitoring device;

wherein the monitoring device comprises a cylindrical groove for receiving the drip chamber, the cylindrical groove comprising a circumferential indent for receiving a collar on the drip chamber to secure the drip chamber within the cylindrical groove.

13. The non-transitory computer readable medium of claim 12 wherein said instructions further include instructions to perform the step of activating an alarm if the instantaneous flow rate is below a predetermined value.

14. The non-transitory computer readable medium of claim 12 wherein the value in the memory is resetable using a reset mechanism.

15. The non-transitory computer readable medium of claim 12 wherein the monitoring device is battery-operated, and wherein said instructions further include instructions to perform the step of indicating on the display when the battery needs to be replaced.