Algorithm for predicting and mitigating adverse events

• US 9,213,956 B2
• Filed: 03/11/2013
• Issued: 12/15/2015
• Est. Priority Date: 03/14/2012
• Status: Active Grant

• Current Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Original Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Inventors: Huster, Keith A., Lachenbruch, Charles A., Receveur, Timothy J.
• Primary Examiner(s): Tomaszewski, Michael
• Application Number:
  US13/793,848
• Publication Number:
  US 20130246088A1
• Time in Patent Office: 1,009 Days
• Field of Search: 705 2- 3, 560/0, 340/573
• US Class Current: 1/1
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G06Q 10/0635 Risk analysis of enterprise or organisation activities
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment

Abstract

A patient support apparatus includes a control system operable to gather physiological information about a patient supported on the patient support apparatus. The information may be gathered from sensors, a user interface, or a hospital information system. The control system also monitors operating parameters of the patient support apparatus and environmental conditions in the patient room. The control system utilizes the data gathered to identify a risk of an adverse event occurring to a patient supported on the patient support apparatus. The patient support apparatus is also operable to modify patient support apparatus parameters or environmental conditions to mitigate the risk of the adverse event.

Claims

1. A patient support apparatus comprising

a plurality of sensors,

a user interface including a plurality of input devices,

a plurality of controllable devices, and

a controller electrically coupled to the plurality of sensors and plurality of controllable devices, the controller including a processor and a memory device electrically coupled to the processor, the memory device including instructions that, when executed by the processor, cause the processor to process a plurality of data items related to physiological conditions of a patient associated with the patient support apparatus as detected by at least one of the plurality of sensors or the input devices and analyze the plurality of data items to determine a risk of an adverse event occurring to the patient, wherein the patient support apparatus includes a siderail locking system that is movable between a locked state and an unlocked state and at least one of the plurality of controllable devices is an actuator for moving the siderail locking system between the locked and unlocked states, wherein the controller operates the actuator for moving the siderail locking system to move the siderail locking system to the locked state when the risk of a patient fall exceeds a threshold as determined by the controller when the plurality of data items is analyzed.

2. The patient support apparatus of claim 1, wherein the memory device further includes instructions that, when executed by the processor, cause the processor identify at least one data item indicative of an environmental factor associated with the environment in which the patient support apparatus is located, analyze the plurality of data items related to the physiological conditions of the patient and the data item indicative of an environmental factor to determine the risk of an adverse event occurring to the patient.

3. The patient support apparatus of claim 2, wherein the memory device further includes instructions that, when executed by the processor, cause the processor to identify at least one data item indicative of a patient support apparatus factor associated with the patient support apparatus is located, analyze the plurality of data items related to the physiological conditions of the patient, the data item indicative of an environmental factor, and the data item indicative of a patient support apparatus factor to determine the risk of an adverse event occurring to the patient.

4. The patient support apparatus of claim 1, wherein the memory device further includes instructions that, when executed by the processor, cause the processor to identify at least one data item indicative of a patient support apparatus factor associated with the patient support apparatus, analyze the plurality of data items related to the physiological conditions of the patient and the data item indicative of a patient support apparatus factor to determine the risk of an adverse event occurring to the patient.

5. The patient support apparatus of claim 4, wherein the memory device further includes instructions that, when executed by the processor, cause the processor to output a signal indicative of the risk of an adverse event occurring to the patient.

6. The patient support apparatus of claim 5, wherein the signal indicative of the risk of an adverse event occurring to the patient causes the user interface to display an indication of the risk.

7. The patient support apparatus of claim 4, wherein the memory device further includes instructions that, when executed by the processor, causes the processor to analyze the plurality of data items related to the physiological conditions of the patient, the data item indicative of an environmental factor, and the data item indicative of a patient support apparatus factor to determine if one or more of the data items are associated with a modifiable condition, and if one or more of the data items are modifiable, determine a value of a first one of the data items which will reduce the risk of an adverse event occurring to the patient.

8. The patient support apparatus of claim 7, wherein the memory device further includes instructions that, when executed by the processor, causes the processor to alter the state of at least one of the controllable devices to alter the value of the first data item to the value of the first data item that reduces the risk of an adverse event occurring to the patient.

9. The patient support apparatus of claim 8, wherein the memory device further includes instructions that, when executed by the processor, causes the processor determine a value of a second one of the data items which will reduce the risk of an adverse event occurring to the patient.

10. The patient support apparatus of claim 9, wherein the memory device further includes instructions that, when executed by the processor, causes the processor to alter the state of at least one of the controllable devices to alter the value of the second data item to the value of the second data item that reduces the risk of an adverse event occurring to the patient.

11. The patient support apparatus of claim 7, wherein the memory device further includes instructions that, when executed by the processor, causes the processor determine a value for each of the data items which will reduce the risk of an adverse event occurring to the patient.

12. The patient support apparatus of claim 11, wherein the memory device further includes instructions that, when executed by the processor, causes the processor to alter the state of at least one of the controllable devices to alter the value of each of the data items to the value of each of the data items that reduces the risk of an adverse event occurring to the patient.

13. The patient support apparatus of claim 7, wherein the memory device further includes instructions that, when executed by the processor, causes the processor to generate a prompt at the display of the user interface indicating to a user the value of a first one of the data items necessary to reduce the risk of an adverse event occurring to the patient.

14. The patient support apparatus of claim 1, wherein the patient support apparatus includes a head section that is movable to change an attitude of the upper body of a patient supported on the patient support apparatus and at least one of the plurality of controllable devices is an actuator for controlling the attitude of the head section of the patient support apparatus.

15. The patient support apparatus of claim 14, wherein the controller analyzes the risk of ventilator-associated pneumonia, and, if the risk of ventilator-assisted pneumonia exceeds a predetermined threshold, the controller automatically operates the actuator to increase the attitude of the head section to exceed a minimum allowable angle.

16. The patient support apparatus of claim 1, wherein the patient support apparatus includes a caster brake system that is movable between a locked state and an unlocked state and at least one of the plurality of controllable devices is an actuator for moving the caster brake system between the locked and unlocked states.

17. The patient support apparatus of claim 16, wherein the controller analyzes the risk of a patient fall, and, if the risk of patient fall exceeds a predetermined threshold, the controller automatically operates the actuator to move the caster brake system to a locked state.

18. The patient support apparatus of claim 1, wherein the controller analyzes the risk of a patient fall, and, if the risk of patient fall exceeds a predetermined threshold, the controller automatically operates the actuator to move siderail locking system to the locked state.

21. The patient support apparatus of claim 1, wherein the at least one of the plurality of controllable devices is a light controller operable to vary the operation of a light in the patient room between an illuminated and non-illuminated state.

22. The patient support apparatus of claim 21, wherein the controller analyzes the risk of a patient fall, and, if the risk of patient fall exceeds a predetermined threshold, the controller automatically modifies the light controller to illuminate the light.

23. The patient support apparatus of claim 1, wherein the patient support apparatus further comprises a surface including at least one bladder and at least one of the plurality of controllable devices is a surface pressurization system operable to vary the pressure in the at least one bladder and the controller analyzes the risk of a patient developing pressure ulcers, and, if the risk of developing pressure ulcers exceeds a predetermined threshold, the controller automatically modifies the operation of the surface pressurization system to vary the pressure in the at least one bladder to mitigate the risk of developing pressure ulcers.

19. A patient support apparatus comprising

a plurality of sensors,

a user interface including a plurality of input devices,

a plurality of controllable devices, and

a controller electrically coupled to the plurality of sensors and plurality of controllable devices, the controller including a processor and a memory device electrically coupled to the processor, the memory device including instructions that, when executed by the processor, cause the processor to process a plurality of data items related to physiological conditions of a patient associated with the patient support apparatus as detected by at least one of the plurality of sensors or the input devices and analyze the plurality of data items to determine a risk of an adverse event occurring to the patient, wherein the patient support apparatus includes a siderail actuation system that is operable to move at least one siderail between a lowered position and a raised position and at least one of the plurality of controllable devices is an actuator for moving the siderail between the lowered and raised positions, wherein the controller operates the actuator for moving the siderail to move the siderail to the raised position when the risk of a patient fall exceeds a threshold as determined by the controller when the plurality of data items is analyzed.

20. The patient support apparatus of claim 19, wherein the controller analyzes the risk of a patient fall, and, if the risk of patient fall exceeds a predetermined threshold, the controller automatically operates the actuator to move siderail to the raised position.