Patient monitoring system

• US 20050033250A1
• Filed: 04/30/2004
• Published: 02/10/2005
• Est. Priority Date: 04/30/2003
• Status: Active Grant

• Current Assignee: Zealacare LLC
• Original Assignee: Daniel R. Collette, Mathew Peter Napier
• Inventors: Napier, Mathew Peter, Collette, Daniel R.
• Granted Patent: US 8,421,636 B2
• Time in Patent Office: Days
• US Class Current: 604/361
• CPC Class Codes: A61F 13/42 with wetness indicator or alarm

Abstract

A patient monitoring system according to one embodiment includes a real-time wetness sensor configured to detect the rate of change in wetness occurring within an associated diaper, and automatically adjusting the sensitivity of the sensor to account for a wetness event unrelated to urination. A monitoring unit may be utilized in such a manner that the monitoring system controller-monitors the wetness sensor and generates data associated with detected-wetness events relative to the diaper. A wireless transmitter configured with the monitoring unit and in communication with the monitoring system controller may be further utilized to send the generated data, through a host computer, to a caregiver unit having a caregiver system controller in communication with the host computer. The caregiver can then check the status of the patient, provide a service, and annotate the patients history by transmitting the recorded observation and service provided back to the base station.

Claims

1. A patient monitoring system for detecting wetness in an article, comprising:

a. a sensor means configured with a diaper, wherein said sensor means is adapted to detect a wetness event occurring within said diaper;

b. a monitoring unit comprising a monitoring system controller means in communication with said sensor means, wherein said monitoring system controller means monitors said sensor means and generates data associated with detected wetness events relative to said diaper so that said monitoring system controller means can detect a variety of wetness conditions and discern between valid wetness events and false or erroneous wetness events, said diaper providing attaching means for removably attaching said monitoring unit to said diaper;

c. a notification means for informing of the said data associated with detected wetness events relative to said diaper, and the notification means being activated by the output of the monitoring system controller means.

2. The patient monitoring system according to claim 1, wherein said notification means further comprises a display means configured with said monitoring unit and in communication with said monitoring system controller, wherein said display means is adapted to display said data associated with said detected wetness event and corresponding condition of said diaper;

3. The patient monitoring system according to claim 1, wherein said notification means further comprises a sound generating means configured with said monitoring unit and in communication with said monitoring system controller, wherein said sound generating means is responsive to the detection of a wetness event;

4. The patient monitoring system according to claim 1, said system further comprising:

a data port configured with said monitoring unit and in communication with said monitoring system controller, wherein said data port facilitates communications between said monitoring unit and an external system, wherein said communications include said data associated with said detected wetness event and corresponding condition of said diaper.

5. The patient monitoring system according to claim 1, wherein said notification means further comprises:

a. an external display means, configured with said monitoring unit and in communication with said monitoring system controller, wherein said display means is adapted to display said data associated with said detected wetness event and corresponding condition of said diaper;

b. a wireless transmitter configured with said monitoring unit and in communication with said monitoring system controller, wherein said wireless transmitter facilitates communications between said monitoring unit and said external display means.

6. The patient monitoring system according to claim 5, wherein said external display means in communication with said wireless transmitter is capable of receiving communications from a plurality of said monitoring units.

7. The patient monitoring system according to claim 5, further comprising:

a. a recording means configured to record a plurality of events associated with a caregiver visit to the wearer of said diaper, wherein each recorded event represents at least one of the following;

an observation of the condition of the wearer of said diaper, a service provided to the wearer of the diaper, the name and identifying information of the caregiver, and then name and identifying information of the wearer of the diaper;

b. a caregiver unit comprising a caregiver system controller means in communication with said recording means, wherein said caregiver system controller means is operatively associated with said recording means and generates data associated with recorded events relative to a caregiver visit;

8. The patient monitoring system according to claim 7, further comprising a data port configured with said caregiver unit and in communication with said caregiver system controller, wherein said data port facilitates communications between said caregiver unit and an external system, wherein said communications include said generated data associated with said recorded events relative to a caregiver visit.

9. The patient monitoring system according to claim 7, further comprising a wireless transmitter configured with said caregiver unit and in communication with said caregiver system controller, wherein said wireless transmitter facilitates communications between said caregiver unit and said external display unit, wherein said communications includes said generated data associated with said recorded events relative to a caregiver visit.

10. The patient monitoring system according to claim 1, wherein said notification means further comprises:

a. an external sound generating means configured with said monitoring unit and in communication with said monitoring system controller, wherein said sound generating means is responsive to the detection of a wetness event;

or

b. a wireless transmitter configured with said monitoring unit and in communication with said monitoring system controller, wherein said wireless transmitter facilitates communications between said monitoring unit and said external sound generating means.

11. The patient monitoring system according to claim 1, wherein said external sound generations means in communication with said wireless transmitter is capable of receiving communications from a plurality of said monitoring units.

12. The patient monitoring system according to claim 1, wherein said monitoring system controller of said monitoring unit further comprises a means for detecting, a plurality of levels of wetness of the said diaper in real-time.

13. The patient monitoring system according to claim 1, wherein said monitoring system controller of said monitoring unit further comprises a means for determining the rate of change of the level of wetness of the diaper in real-time.

14. The patient monitoring system according to claim 1, wherein said monitoring system controller of said monitoring unit further comprises a means for automatically adjusting the sensitivity of said sensor means.

15. The patient monitoring system according to claim 1, wherein said sensor means includes at least one sensor selected from the group comprising:

a. a motion sensor for detecting movement within said diaper;

b. a fall sensor for detecting when the wearer of said diaper falls;

c. a location sensor for detecting the location of the wearer of said diaper;

d. a caregiver visit sensor for detecting when a caregiver visits the wearer of said diaper;

e. a call sensor to enable the wearer of said diaper to alert the caregiver that they need assistance;

f. a low battery sensor to detect when the batter of said monitoring unit has low voltage.

16. The patient monitoring system according to claim 1 wherein said sensor means comprises:

a. a laminated metal film, having a front side and a back side, said laminated metal film extending approximately the entire length and approximately the entire width of the diaper;

b. a mylar material attached to said back side of said laminated metal film thereby providing tensile strength and permeability to the said laminated metal film;

c. where said front side of said laminated metal film is adhesively secured to the diaper.

17. The patient monitoring system according to claim 1 wherein said sensor means are composed of metallized thread.

19. The method as claimed in claim 14, wherein the sensing step further includes detecting a plurality of levels of wetness of the said diaper in real-time.

20. The method as claimed in claim 14, wherein the sensing step further includes determining the rate of change of the level of wetness of the diaper in real-time.

21. The method as claimed in claim 14, wherein the sensing step further includes automatically adjusting the sensitivity of said sensor means.

22. The method as claimed in claim 14, wherein the sensing step further includes detecting the location of the said diaper.

23. The method as claimed in claim 14, wherein the sensing step further includes detecting when the wearer of said diaper moves.

24. The method as claimed in claim 14, wherein the sensing step further includes detecting when the wearer of said diaper falls.

25. The method as claimed in claim 14 wherein the sensing step further includes detecting when the caregiver visits the wearer of the diaper.

26. The method as claimed in claim 14, wherein the sensing step further includes detecting when the wearer of the diaper request the assistance of a caregiver.

27. The method as claimed in claim 14, wherein the sensing step further includes detecting when said monitoring unit requires a new battery.

28. The method as claimed in claim 14, wherein the activating a notification step further includes displaying said data.

29. The method as claimed in claim 14, wherein the activating a notification step further includes generating a sound.

30. The method as claimed in claim 14, wherein the activating a notification step further includes wirelessly transmitting said data for display on an external display.

31. The method as claimed in claim 14, wherein the activating a notification step further includes generating a sound on an external sound generator.

32. The method as claimed in claim 14, wherein the activating a notification step further includes communicating said data to an external system.

33. The method as claimed in claim 14, wherein said method further comprises the step of recording an event associated with a caregiver visit to the wearer of said diaper, wherein each recorded event represents at least one of the following:

an observation of the condition of the wearer of said diaper, a service provided to the wearer of the diaper, the name and identifying information of the caregiver, and the name and identifying information of the wearer of the diaper;

34. The method as claimed in claim 29, wherein said method further comprises the step of communicating said recorded event to an external system.

35. The method as claimed in claim 29, wherein said method further comprises the step of wirelessly transmitting said recorded event to an external system.

36. The method as claimed in claim 14, wherein the sensing step further comprises at least one of the steps of:

a. detecting a plurality of levels of wetness of the said diaper in real-time;

b. determining the rate of change of the level of wetness of the diaper in real-time;

c. automatically adjusting the sensitivity of said sensor means;

d. detecting when the wearer of said diaper moves.

e. detecting when the wearer of said diaper falls.

f. detecting when a caregiver visits the wearer of the diaper.

g. detecting when the wearer of the diaper requests the assistance of a caregiver.

h. detecting when said monitoring unit requires a new battery.

37. A diaper produced according to the method of claim 32.

18. A method of sensing and monitoring wetness in an article, said method comprising the steps of:

a. configuring of a sensor in a diaper which can detect wetness;

b. removably attaching a monitoring unit to said diaper, the monitoring unit comprising a monitoring system controller in communication with said sensor, wherein said monitoring system controller monitors said sensor and generates data associated with detected wetness events relative to said diaper so that said monitoring system controller can detect a variety of wetness conditions and discern between valid wetness events and false or erroneous wetness events;

c. sensing a plurality of wetness events in said diaper responsive to said sensor;

d. activating a notification of the said data associated with detected wetness events relative to said diaper.