Adjustably controlling rescue or assisted breaths
Described are overinflation and/or overventilation devices. The devices can include a body configured to attach to a resuscitation interface and a gas source, a subject metric input component disposed at the body, the subject metric input component configured to receive input specifying a metric associated with a resuscitation subject; and a volume control mechanism disposed within the body, the volume control mechanism configured to control a volume of gas provided by the gas source during a manual resuscitation that is communicated to the resuscitation interface based on the metric provided by the subject metric input component. Methods of using these devices are also included.
1. An overinflation and/or overventilation device, the device comprising:
a body configured to attach to a resuscitation interface and a gas source;
a subject metric input component disposed at the body, the subject metric input component configured to receive input specifying a metric associated with a resuscitation subject;
a volume control mechanism disposed within the body, the volume control mechanism configured to control a volume of gas provided by the gas source, during a manual resuscitation, that is communicated to the resuscitation interface based on the metric provided by the subject metric input component;
a control unit for receiving data from a sensor associated with the subject metric input component, wherein the control unit and the sensor disposed within the body; and
a timing device configured to provide an indication to a healthcare provider performing manual resuscitation to convey a time period between rescue or assisted breaths wherein the control unit is configured to determine the time period using the received data.
2. The device of claim 1 , wherein the resuscitation interface includes a mask or an advanced airway.
3. The device of claim 1 , wherein the resuscitation gas source includes one or both of a resuscitation bag or an oxygen (O 2 ) source.
4. The device of claim 1 , wherein the body includes an inlet port and an outlet port, wherein one or both of the inlet port and the outlet port comply with a standard for manual resuscitator parts such that the device is insertable into existing standard resuscitation equipment.
5. The device of claim 1 , wherein the metric associated with the subject includes one or more of a weight, a range of weights, a height, a range of heights, a body habitus, a body mass index, an age, a range of ages, or a developmental stage.
6. The device of claim 1 , wherein the subject metric input component includes one or more of a dial, a keypad, a button, or a slider.
7. The device of claim 1 , wherein the volume control mechanism is configured to vent excess gas volume beyond the controlled volume.
8. The device of claim 1 , wherein the volume control mechanism includes two or more different diameter feed lines that correspond to a selection on the subject metric input component.
9. The device of claim 1 , wherein the time period is determined such that a rate of rescue or assisted breaths at the controlled volume provided during manual resuscitation will result in a gas pressure threshold at the resuscitation interface remaining unbreached.
10. The device of claim 1 , wherein the indication includes feedback that is one or more of visual, audio, or haptic.
11. An overinflation and/or overventilation device, the device comprising:
an inlet configured to receive a manual resuscitation gas source;
an outlet configured to receive a resuscitation interface;
a body portion including a subject metric input component and a volume control mechanism, wherein the subject metric input component is configured to move the volume control mechanism based on a user input to achieve a portion of a gas volume received at the inlet that is delivered at the outlet;
a control unit for receiving data from a sensor associated with the subject metric input component, wherein the control unit and the sensor disposed within the body portion; and
a timing device, configured to provide an indication to a healthcare provider performing manual resuscitation to convey a time period between rescue or assisted breaths wherein the control unit is configured to determine the time period using the received data.
12. The device of claim 11 , wherein the resuscitation interface includes a mask or an advanced airway, and wherein the manual resuscitation gas source includes one or both of a resuscitation bag or an oxygen (O 2 ) source.
13. The device of claim 11 , wherein the subject metric input includes quadrants that indicate a metric associated with a subject, the metric including one or more of a weight, a range of weights, a height, a range of heights, a body habitus, a body mass index, an age, a range of ages, or a developmental stage.
14. The device of claim 11 , wherein the subject metric input component is configured to spin the volume control mechanism.
15. The device of claim 14 , wherein the volume control mechanism is a disk that includes two or more different diameter feed lines.
16. The device of claim 14 , wherein the volume control mechanism is a conical stopper and that engages a lip.
17. The device of claim 16 , wherein the conical stopper includes one or more by-pass channels.
18. A method for manual resuscitator assembly operation involving adjustably controlling rescue or assisted breaths provided during manual resuscitation to prevent overinflation and/or overventilation, the method comprising:
receiving input specifying a metric associated with a resuscitation subject via a subject metric input component disposed at a device, the device being disposed between a manual resuscitation gas source and a resuscitation interface, by an inlet port of the device being attached to the manual resuscitation gas source, and an outlet port of the device being attached to the resuscitation interface, such that a portion of gas of a rescue or assisted breath provided during manual resuscitation is communicated from the manual resuscitation gas source via the inlet port to the resuscitation interface via the outlet port;
providing a control unit for receiving data from a sensor associated with the subject metric input component, wherein the control unit and the sensor disposed within the device;
controlling a volume of the portion of gas of the rescue or assisted breath provided during manual resuscitation that is communicated through the outlet port based on the metric received by the subject metric input component; and
providing an indication to a healthcare provider performing manual resuscitation via a timing device configured to convey a time period between rescue or assisted breaths wherein the control unit is configured to determine the time period using the received data.