Ventilator monitoring and control

Patent metadata

Field	Value
Publication number	US-10426906-B2
Application number	US-201013257048-A
Country	US
Kind code	B2
Filing date	Mar 18, 2010
Priority date	Mar 18, 2009
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

A computer-implemented patient information provisioning method is disclosed. The method includes automatically extracting with a computer system, from records maintained for a patient under care in a healthcare facility, information from a electronic medical record; obtaining with the computer system information about a medical ventilator treating the patient; using the information from the electronic medical record and the information about the medical ventilator to determine whether a potentially dangerous condition exists with respect to the ventilator; and electronically alerting a caregiver if it is determined that a potentially dangerous condition exists.

First claim

What is claimed is:

1. A computer-implemented patient information provisioning method, comprising:
identifying, as key words, terms likely to occur in electronic medical records that are determined to indicate presence of acute lung injury or acute respiratory distress syndrome;
automatically extracting with a computer system and the identified terms, from records maintained for a patient under care in a healthcare facility, information from an electronic medical record, and automatically analyzing text of the electronic medical record to determine whether the patient under care has acute lung injury or acute respiratory distress syndrome, wherein the automatically extracting comprises querying written textual descriptions in patient reports for the identified key words that are indicative of acute lung injury or acute respiratory distress syndrome;
obtaining with the computer system, and as a result of identifying in the analyzed text of the electronic medical record key words that are determined to indicate presence of acute lung injury or acute respiratory distress syndrome, information about a medical ventilator currently treating the patient;
adjusting an operational value for the medical ventilator from a normal value that is used for patients who do not have acute lung injury or acute respiratory distress syndrome, based on determining that an improper setting exists for the patient as a combination of (a) the patient's electronic medical record having one or more key words that are indicative of acute lung injury or acute respiratory distress syndrome, and (b) the medical ventilator having a current value inconsistent with treatment of someone with acute lung injury or acute respiratory distress syndrome;
determining that a potentially dangerous condition exists for the patient based on a measured value for the medical ventilator being excessive compared to the adjusted operational value;
identifying a contact identifier for a device of a caregiver based on a determination of who is currently assigned responsibility for the patient, and as a result of determining that the potentially dangerous condition exists; and
electronically alerting the caregiver remote from the patient if it is determined that the potentially dangerous condition exists.

2. The method of claim 1 , wherein the information from the electronic medical record comprises data from an arterial blood gas analysis.

3. The method of claim 1 , further comprising obtaining with the computer system textual information from a medical report for the patient and using the textual information to determine whether a potentially dangerous condition exists with respect to the medical ventilator.

4. The method of claim 1 , wherein the information about the medical ventilator comprises information about a measured peak pressure or set tidal volume for the medical ventilator.

5. The method of claim 4 , wherein the potentially dangerous condition is determined to exist if the information from the electronic medical record indicates an arterial blood gas level of PaO 2 /FIO 2 <300 mmHg, pressure is above 35 mm H 2 O or volume is above 8 mL/kg.

6. The method of claim 1 , wherein electronically alerting a caregiver comprises providing an electronic messaging service with a description of an alerting condition of the patient, and information identifying the patient.

7. The method of claim 1 , further comprising blocking alerting of the caregiver if the caregiver has previously been notified about the patient a predetermined number of times in a predetermined time period.

8. The computer-implemented method of claim 1 , further comprising receiving an input from the caregiver to control the medical ventilator.

9. The computer-implemented method of claim 1 , wherein the information from the electronic medical record does not indicate a diagnosis of acute lung injury or acute respiratory distress syndrome.

10. The computer-implemented method of claim 1 , further comprising suppressing the electronic alerting of the caregiver until the potentially dangerous condition has been determined to have persisted for a particular time period.

11. The computer-implemented method of claim 1 , further comprising suppressing the electronic alerting of the caregiver upon determining that prior alerts have been provided to the caregiver.

12. The computer-implemented method of claim 1 , wherein a determination about whether a potentially dangerous condition exists is based on a first group of data that is obtained repeatedly at a first frequency, and a second group of data that is obtained at a different, second frequency, wherein the frequencies depend on how frequently the groups of data are expected to change over time.

13. The computer-implemented method of claim 1 , wherein a determination about whether a potentially dangerous condition exists comprises making a provisional determination based on a first set of data, and if the provisional determination is positive regarding a potentially dangerous condition existing, making a final determination using a second set of data.

14. The computer-implemented method of claim 1 , wherein determining that a potentially dangerous condition exists for the patient further comprises natural language processing of text in the electronic medical record.

15. The computer-implemented method of claim 1 , further comprising automatically changing settings of the medical ventilator as a result of determining that a potentially dangerous condition exists for the patient.

16. The computer-implemented method of claim 1 , further comprising delaying the electronic alerting of the caregiver based on a determination of prior alerts that have been provided for the patient.

17. The computer-implemented method of claim 1 , further comprising determining a particular location of the patient to identify the contact identifier of the caregiver.

18. A computing system, comprising:
a medical ventilator for providing mechanical ventilation to a patient;
one or more processors;
memory; and
one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including:
instructions for identifying, as key words, terms likely to occur in electronic medical records that are determined to indicate presence of acute lung injury or acute respiratory distress syndrome;
instructions for automatically extracting, from records maintained for the patient, information from an electronic medical record, and automatically analyzing text of the electronic medical record to determine whether the patient under care has acute lung injury or acute respiratory distress syndrome, wherein the automatically extracting comprises querying written textual descriptions in patient reports for the identified key words that are indicative of acute lung injury or acute respiratory distress syndrome;
instructions for obtaining with the computing system, and as a result of identifying in the analyzed text of the electronic medical record key words that are determined to indicate presence of acute lung injury or acute respiratory distress syndrome, current information about the medical ventilator;
instructions for adjusting an operational value for the medical ventilator from a normal value that is used for patients who do not have acute lung injury or acute respiratory distress syndrome, based on determining that an improper setting exists for the patient as a combination of (a) the patient's electronic medical record having one or more key

Assignees

• Gajic Ognjen
• Herasevich Vitaly
• Mayo Found Medical Education & Res

Inventors

• Gajic Ognjen
• Herasevich Vitaly

Classifications

• A61M2205/18

  with alarm · CPC title

• A61M2230/435

  partial O2 pressure (P-O2) · CPC title

• A61M2205/33

  Controlling, regulating or measuring · CPC title

• A61M2205/3331

  Pressure; Flow · CPC title

• A61B5/085

  Measuring impedance of respiratory organs or lung elasticity · CPC title