Incontinence detection apparatus

• US 10,159,607 B2
• Filed: 09/19/2017
• Issued: 12/25/2018
• Est. Priority Date: 11/16/2015
• Status: Active Grant

• Current Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Original Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Inventors: Monson, Gavin M., O'Neal, Todd P., Ribble, David L., Tallent, Dan R., Christie, John D., Emmons, Kirsten M., Fu, Yongji, Hood, Michael S., Seim, Douglas A., Severns, Ryan S., Voll, James D., Wiley, Gregory, Dixon, Steven A., Weidman, Bryan, Benz, Eric D., Knittle, Brett, Nusair, Marwan, Wiggermann, Neal, Harmeyer, John V.
• Primary Examiner(s): Flores, Leon
• Application Number:
  US15/708,589
• Publication Number:
  US 20180021184A1
• Time in Patent Office: 462 Days
• CPC Class Codes: A61B 2503/08 Elderly
• CPC Class Codes: A61B 2560/0468 Built-in electrodes
• CPC Class Codes: A61B 2562/164 the sensor is mounted in or on a conformable substrate or carrier
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/05 Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves impedance plethysmography A61B5/0295; measuring movement of the entire body or parts thereof A61B5/11; detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof A61B5/24
• CPC Class Codes: A61B 5/202 Assessing bladder functions, e.g. incontinence assessment
• CPC Class Codes: A61B 5/207 Sensing devices adapted to collect urine
• CPC Class Codes: A61B 5/6802 Sensor mounted on worn items
• CPC Class Codes: A61B 5/6804 Garments; Clothes
• CPC Class Codes: A61B 5/6808 Diapers
• CPC Class Codes: A61B 5/6892 Mats
• CPC Class Codes: A61B 5/7465 Arrangements for interactive communication between patient and care services, e.g. by using a telephone network telemetry of measured physiological signal A61B5/0002
• CPC Class Codes: A61F 13/42 with wetness indicator or alarm
• CPC Class Codes: A61F 2013/424 having an electronic device
• CPC Class Codes: A61G 2203/30 characterised by sensor means
• CPC Class Codes: A61G 2203/70 with special adaptations, e.g. for safety or comfort
• CPC Class Codes: A61G 2205/60 using magnetic or electronic identifications, e.g. chips, RFID, electronic tags
• CPC Class Codes: A61G 7/015 divided into different adjustable sections, e.g. for Gatch position
• CPC Class Codes: A61G 7/05 Parts, details or accessories of beds devices for prevention against falling out A47C21/08, A47D7/00 ; mattresses A47C27/00
• CPC Class Codes: G01M 3/045 with electrical detection means
• CPC Class Codes: G06K 19/07718 : the record carrier being manufactured in a continuous process, e.g. using endless rolls
• CPC Class Codes: G06K 7/0095 : Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly testing of electrical circuits G01R31/28
• CPC Class Codes: G06K 7/10069 : the collision being resolved in the frequency domain, e.g. by hopping from one frequency to the other frequency hopping or spread spectrum techniques H04B7/00
• CPC Class Codes: G06K 7/10168 : the powering being adversely affected by environmental influences, e.g. unwanted energy loss in the interrogation signal due to metallic or capacitive objects in the proximity of the interrogation device or in the proximity of the interrogated record carrier
• CPC Class Codes: G06K 7/10356 : using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas
• CPC Class Codes: G06K 7/10366 : the interrogation device being adapted for miscellaneous applications
• CPC Class Codes: G08B 21/20 : responsive to moisture
• CPC Class Codes: G16H 40/20 : for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• CPC Class Codes: H01Q 1/2216 : used in interrogator/reader equipment
• CPC Class Codes: H01Q 9/0407 : Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40
• CPC Class Codes: H01Q 9/0457 : electromagnetically coupled to the feed line
• CPC Class Codes: Y10T 156/1052 : with cutting, punching, tearing or severing
• CPC Class Codes: Y10T 156/1056 : Perforating lamina

Abstract

An incontinence detection system monitors an area for moisture events and wirelessly transmits moisture-related information to one or more notification devices. The system has a pad that includes a substrate and one or more sensors supported by the substrate. The sensor(s) emit wireless signals indicative of the moisture-related information. A sensor event communication system forwards the sensor signals to another device, such as a notification device. Portions of the system are included in a patient support apparatus, such as a bed.

Claims

1. A patient support apparatus comprising

a frame including a patient support deck having a plurality of deck sections, a first deck section of the plurality of deck sections being movable relative to at least a second deck section,

a mattress supported by the patient support deck, the mattress having a portion that moves with the first deck section,

an incontinence detection pad for placement atop the mattress, the incontinence detection pad having a passive radio frequency identification (RFID) tag,

a reader coupled to the frame and operable to read data from the RFID tag,

a first antenna coupled to an upper surface of the first deck section to move therewith, and

a second antenna coupled to an upper surface of the second deck section, wherein the first and second antenna are communicatively coupled with the reader, wherein the RFID tag is excited by energy emitted from at least one of the first and second antenna through the mattress and data from the RFID tag of the incontinence pad is reflected back to at least one of the first and second antennae through the mattress,

wherein the incontinence detection pad further comprises a top sheet made of a fluid permeable material, a backsheet comprising a first layer of fluid impermeable material, a conductive ink pattern provided on the first layer and configured to form a first electrode trace and a second electrode trace, and an absorbent core situated between the top sheet and the backsheet, wherein the RFID tag is attached to the first layer and has electrical contacts that couple to the respective first and second electrode traces, wherein wetness bridging between the first and second electrode traces is detectable by the RFID tag in response to the RFID tag being excited by external energy from the first antenna or the second antenna or both.

2. The patient support apparatus of claim 1, wherein the patient support deck has a first side extending in a longitudinal dimension of the patient support apparatus and a second side extending in the longitudinal dimension of the patient support apparatus, wherein the incontinence detection pad is configured so that, when the incontinence detection pad is properly oriented on the mattress, the RFID tag is closer to the first side of the patient support deck than the second side;

and wherein the first and second antennae are each positioned closer to the first side of the patient support deck than the second side.

3. The patient support apparatus of claim 2, wherein the frame has a head end and a foot end, the incontinence detection pad is generally quadrilateral in shape, and the incontinence detection pad has indicia indicating that a first edge of the quadrilateral should be oriented toward the head end of the frame.

4. The patient support apparatus of claim 2, wherein the frame has a head end and a foot end, the incontinence detection pad is generally quadrilateral in shape, and the incontinence detection pad has indicia indicating that a first edge of the quadrilateral should be oriented toward the foot end of the frame.

5. The patient support apparatus of claim 1, wherein the first and second deck sections each have a hole therethrough and further comprising a first cable coupling the first antenna to the reader and a second cable coupling the second antenna to the reader, the first cable being routed through the hole of the first deck section, and the second cable being routed through the hole of the second deck section.

6. The patient support apparatus of claim 1, wherein the second deck section is movable relative to a third deck section and the third deck section is situated between the first and second deck sections.

7. The patient support apparatus of claim 6, wherein the first deck section is arranged to support a torso of a patient located on the mattress, the second deck section is arranged to support thighs of the patient located on the mattress, and the third deck section is arranged to support a buttocks of the patient located on the mattress.

8. The patient support apparatus of claim 6, wherein a first gap is defined between the first deck section and the third deck section, wherein a second gap is defined between the second deck section and the third deck section, and further comprising a first cable coupling the first antenna to the reader and a second cable coupling the second antenna to the reader, the first cable being routed through the first gap and the second cable being routed through the second gap.

9. The patient support apparatus of claim 1, wherein the frame has a head end and a foot end and further comprising an indicator unit attached to the frame adjacent the foot end, the indicator unit being signaled by the reader to provide a visual indication that the incontinence detection pad has detected incontinence.

10. The patient support apparatus of claim 1, wherein the indicator unit comprises a light that is illuminated a first color in response to the incontinence detection pad detecting wetness, the light is illuminated a second color when the incontinence detection pad is in communication with the reader and the incontinence detection pad has not detected wetness, and the light is illuminated a third color when the reader is not in communication with the incontinence detection pad.

11. The patient support apparatus of claim 10, wherein the first color is amber or yellow, the second color is green, and the third color is white.

12. The patient support apparatus of claim 1, wherein the first deck section includes a stationary portion and a translating portion that translates relative to the stationary portion as the first deck section is raised and lowered relative to at least one other portion of the frame and wherein the first antenna is coupled to the translating portion of the first deck section.

13. The patient support apparatus of claim 1, further comprising an output port that is communicatively coupled to the reader, the frame having a head end and a foot end, and the output port is located adjacent the head end of the frame.

14. The patient support apparatus of claim 13, wherein the frame includes a base frame and an upper frame that supports the patient support deck for upward and downward movement relative to the base frame, the reader is coupled to the upper frame and the output port is coupled to the base frame.

15. The patient support apparatus of claim 1, further comprising bed circuitry coupled to the frame and operable to control bed functions, the bed circuitry including an output port through which bed data is transmitted, and wherein the reader is coupled to the bed circuitry, wherein the reader sends to the bed circuitry detection information that indicates whether the incontinence detection pad has detected wetness or has not detected wetness, and wherein the bed circuitry transmits the detection information through the output port of the bed circuitry.

16. The patient support apparatus of claim 1, further comprising a controller that communicates an incontinence event detected by the incontinence detection pad with one or more remote alert systems in response to a signal from the reader that the incontinence event took place.

17. A patient support apparatus comprising

a frame including a patient support deck having a plurality of deck sections, a first deck section of the plurality of deck sections being movable relative to at least a second deck section,

a mattress supported by the patient support deck, the mattress having a portion that moves with the first deck section,

an incontinence detection pad for placement atop the mattress, the incontinence detection pad having a passive radio frequency identification (RFID) tag,

a reader coupled to the frame and operable to read data from the RFID tag,

a first antenna coupled to an upper surface of the first deck section to move therewith, and

a second antenna coupled to an upper surface of the second deck section, wherein the first and second antenna are communicatively coupled with the reader, wherein the RFID tag is excited by energy emitted from at least one of the first and second antenna through the mattress and data from the RFID tag of the incontinence pad is reflected back to at least one of the first and second antennae through the mattress,

wherein the incontinence detection pad further comprises a substrate having a length and width defining a monitoring area, a plurality of electrically conductive traces coupled to inputs of the RFID tag, each trace of the plurality of electrically conductive traces being arranged at measureable distances from each of the other traces of the plurality of traces on the substrate, and a controller configured to determine a fluid volume in the substrate based on the wireless signal transmitted by the RFID tag and the distances between the electrically conductive traces.

18. The patient support apparatus of claim 17, wherein a fluid volume threshold is variable among a plurality of fluid volume thresholds so that the controller generates an alarm if the fluid volume exceeds a selected fluid volume threshold and so that the controller does not generate the alarm if the fluid volume is below the selected fluid volume threshold.

19. The patient support apparatus of claim 18, wherein the selected fluid volume threshold is selected automatically by the controller based on information received from a remote computer relating to a condition of a patient.

20. A patient support apparatus comprising

a frame including a patient support deck having a plurality of deck sections, a first deck section of the plurality of deck sections being movable relative to at least a second deck section,

a mattress supported by the patient support deck, the mattress having a portion that moves with the first deck section,

an incontinence detection pad for placement atop the mattress, the incontinence detection pad having a passive radio frequency identification (RFID) tag,

a reader coupled to the frame and operable to read data from the RFID tag,

a first antenna coupled to the first deck section to move therewith, and

a second antenna coupled to the second deck section, wherein the first and second antenna are communicatively coupled with the reader, wherein the RFID tag is excited by energy emitted from at least one of the first and second antenna through the mattress and data from the RFID tag of the incontinence pad is reflected back to at least one of the first and second antennae through the mattress,

wherein the incontinence detection pad further comprises a top sheet, a backsheet comprising a first layer, a conductive ink pattern provided on the first layer and configured to form a first electrode trace and a second electrode trace, and an absorbent core situated between the top sheet and the backsheet, wherein the RFID tag is attached to the first layer and has electrical contacts that couple to the respective first and second electrode traces, wherein wetness bridging between the first and second electrode traces is detectable by the RFID tag in response to the RFID tag being excited by external energy from the first antenna or the second antenna or both.