Integrated multimodal colorimetric based aspiration detection and intubation placement verification system and method
View Patent ↗An integrated multimodal colorimetric based aspiration detection and intubation placement verification system for an endotracheal tube and associated method includes a housing configured to be coupled to the endotracheal tube whereby patient exhalation can flow through an internal passage of the housing, and colorimetric based sensors within the housing and configured to come into contact with the patient exhalation, where the colorimetric based sensors are visible from the exterior of the housing, and wherein the colorimetric sensors include at least two of i) CO2 sensor, ii) a sensor for a first gastric acid, iii) a sensor for a second gastric acid different from the first gastric acid, and iv) a PH sensor. An associated method is disclosed. The integrated multimodal colorimetric based system can be used with other respiratory devices other than endotracheal tubes.
1 . An integrated multimodal colorimetric based aspiration detection and intubation placement verification system for an endotracheal tube comprising:
a) A housing having an inlet coupling and an outlet coupling coupled directly to a central chamber, wherein the inlet coupling is configured to be coupled to the endotracheal tube whereby patient respiratory exhalation can flow through a valveless internal passage of the housing formed by the inlet coupling the central chamber and the outlet coupling;
b) Colorimetric based sensors within the housing and configured to come into contact with the patient exhalation within the central chamber, where the colorimetric based sensors are visible from the exterior of the housing, and wherein the colorimetric sensors includes a CO2 sensor and at least one of i) a sensor for a first gastric acid, ii) a sensor for a second gastric acid different from the first gastric acid, and iii) a PH sensor.
2 . The integrated multimodal colorimetric based aspiration detection and intubation placement verification system according to claim 1 , wherein the colorimetric sensors includes both a sensor for a first gastric acid and a sensor for a second gastric acid different from the first gastric acid.
3 . The integrated multimodal colorimetric based aspiration detection and intubation placement verification system according to claim 2 , wherein one colorimetric sensor senses butyric acid.
4 . The integrated multimodal colorimetric based aspiration detection and intubation placement verification system according to claim 3 , wherein one colorimetric sensor senses hydrochloric acid, and wherein the central chamber is a disc shaped central chamber.
5 . The integrated multimodal colorimetric based aspiration detection and intubation placement verification system according to claim 4 , wherein one colorimetric sensor senses PH.
6 . The integrated multimodal colorimetric based aspiration detection and intubation placement verification system according to claim 1 , wherein the central chamber is a disc shaped central chamber and wherein one colorimetric sensor senses butyric acid and is in a frame coupled to the disc shaped central chamber.
7 . The integrated multimodal colorimetric based aspiration detection and intubation placement verification system according to claim 2 , wherein the central chamber is a disc shaped central chamber and wherein one colorimetric sensor senses PH and is in a frame coupled to the disc shaped central chamber.
8 . An integrated multimodal colorimetric based aspiration detection system for a respiratory device comprising:
a) A housing having an inlet coupling and an outlet coupling coupled directly to a disc shaped central chamber, wherein the inlet coupling is configured to be coupled to the respiratory device whereby patient respiratory exhalation can flow through a valveless internal passage passage of the housing formed by the inlet coupling the central chamber and the outlet coupling;
b) Colorimetric based sensors within the housing and configured to come into contact with the patient exhalation within the disc shaped central chamber, where the colorimetric based sensors are visible from the exterior of the housing, and wherein the colorimetric sensors includes at least two of i) a CO2 sensor, ii) a sensor for a first gastric acid, iii) a sensor for a second gastric acid different from the first gastric acid, and iv) a PH sensor.
9 . The integrated multimodal colorimetric based aspiration detection system according to claim 8 , wherein the colorimetric sensors includes both a sensor for a first gastric acid and a sensor for a second gastric acid different from the first gastric acid.
10 . The integrated multimodal colorimetric based aspiration detection system according to claim 9 , wherein one colorimetric sensor senses butyric acid.
11 . The integrated multimodal colorimetric based aspiration detection system according to claim 10 , wherein one colorimetric sensor senses hydrochloric acid.
12 . The integrated multimodal colorimetric based aspiration detection system according to claim 11 , wherein one colorimetric sensor senses PH.
13 . The integrated multimodal colorimetric based aspiration detection system according to claim 8 , wherein one colorimetric sensor senses butyric acid.
14 . The integrated multimodal colorimetric based aspiration detection system according to claim 13 , wherein one colorimetric sensor senses PH.
15 . The integrated multimodal colorimetric based aspiration detection system according to claim 14 , wherein one colorimetric sensor senses CO2.
16 . A colorimetric based aspiration detection system for a respiratory device comprising:
a) A housing having an inlet coupling and an outlet coupling coupled directly to a disc shaped central chamber, wherein the inlet coupling is configured to be coupled to the respiratory device whereby patient respiratory exhalation can flow through a valveless internal passage passage of the housing formed by the inlet coupling the central chamber and the outlet coupling;
b) At least one colorimetric based sensors within the housing and configured to come into contact with the patient exhalation within the disc shaped central chamber, where each of the colorimetric based sensors are visible from the exterior of the housing, and wherein the colorimetric sensors includes at least a colorimetric sensor which senses butyric acid.
17 . The colorimetric based aspiration detection system for a respiratory device according to claim 16 , wherein one colorimetric sensor senses CO2.
18 . A method of aspiration detection and intubation placement verification for an endotracheal tube comprising the steps of:
a) Attempting to intubate the patient with an endotracheal tube;
b) Providing an integrated multimodal colorimetric based aspiration detection and intubation placement verification system for an endotracheal tube having a housing having an inlet coupling and an outlet coupling coupled directly to a disc shaped central chamber, and colorimetric based sensors within the housing, wherein the colorimetric sensors includes a CO2 sensor and at least one of i) a sensor for a first gastric acid, ii) a sensor for a second gastric acid different from the first gastric acid, and iii) a PH sensor;
c) Coupling the inlet coupling of the housing to the endotracheal tube whereby patient exhalation can flow through a valveless internal passage passage of the housing formed by the inlet coupling the central chamber and the outlet coupling, wherein the colorimetric based sensors within the housing come into contact with the patient exhalation within the disc shaped central chamber; and
d) Visualizing the colorimetric based sensors from the exterior of the housing after they have come into contact with patient exhalation to detect aspiration and to verify intubation placement.
19 . The method of aspiration detection and intubation placement verification for an endotracheal tube according to claim 18 , wherein the detection of patient aspiration includes the detection of butyric acid in the patient respiratory exhalation.
20 . The method of aspiration detection and intubation placement verification for an endotracheal tube according to claim 19 , wherein the intubation placement verification for an endotracheal tube includes the detection of CO2 in the patient respiratory exhalation.