Negative pressure aerosolization mitigation devices and methods
An aerosolization mitigation device is provided. The aerosolization mitigation device can include a negative pressure aerosolization mitigation system. A transparent barrier can form a frame of the system, and a negative pressure can be generated in the internal volume. The device can isolate a patient to allow ambulatory, surgical, and routine care to proceed during periods of higher patient volume or viral transmission. The negative pressure environment mitigates viral transmission to protect healthcare providers and others in the vicinity of the patient from health risks during patient care.
1. An aerosolization mitigation device, comprising: an inflatable strut system comprising: a front left strut and a front right strut; a rear left strut and a rear right strut; and a rear middle strut disposed between the rear left strut and the rear right strut; a transparent barrier configured to enclose a portion of a patient in a contained environment, the transparent barrier comprising a floor panel, wherein the transparent barrier is configured to form a volume around the patient when the inflatable strut system is in an inflated state, and wherein the front left strut, front right strut, rear left strut, right rear strut, and rear middle strut extend upward from the floor panel when the inflatable strut system is in the inflated state; a first top strut connected to upper ends of the front left strut and the front right strut; a window strut is connected from an upper end of the rear left strut, to the first top strut between the front left strut and front right strut, then to an upper end of the rear right strut, and then to an upper end of the rear middle strut; an opening between the front left strut and the right front strut configured to be sealed around the patient; a negative pressure channel configured to be coupled to a source of negative pressure, wherein the negative pressure channel is configured to generate a negative pressure in the volume around the patient in response to an application of the source of negative pressure; and an access port configured to provide a flow limited passageway through the transparent barrier into the volume around the patient when the inflatable strut system is in the inflated state.
2. The aerosolization mitigation device of claim 1 , wherein the transparent barrier defines the opening and is formed as:
a frame configured to enclose at least a head of the patient; and
a drape configured to seal the opening around at least a portion of a neck of the patient,
wherein the frame and the drape are sealed together at the opening such that fluid communication between the volume around the patient and an environment external to the transparent barrier is prevented.
3. The aerosolization mitigation device of claim 2 , wherein the frame comprises a first material,
wherein the drape comprises a second material different than the first material,
and wherein the first material is less flexible than the second material.
4. The aerosolization mitigation device of claim 2 , wherein a front edge of the drape further comprises a closing mechanism configured to close around the patient to maintain the negative pressure in the volume around the patient, and
wherein the closing mechanism comprises at least one of a string, adhesive, or elastic.
5. The aerosolization mitigation device of claim 1 , wherein the transparent barrier further comprises a plurality of wall panels configured to seal with the inflatable strut system to prevent fluid communication between the volume around the patient and an environment external to the transparent barrier.
6. The aerosolization mitigation device of claim 5 , wherein one of the plurality of wall panels on a side of the transparent barrier is configured to form an acute angle with a longitudinal axis generally perpendicular to a flat plane on which the aerosolization mitigation device is positioned in the inflated state.
7. The aerosolization mitigation device of claim 5 , wherein a first wall panel is disposed between the rear left strut and the rear middle strut and a second wall panel is disposed between the rear right strut and the rear middle strut, and wherein the first and second wall panels are at an obtuse angle relative to each other in the inflated state.
8. The aerosolization mitigation device of claim 1 , wherein the inflatable strut system comprises:
inflatable tubing forming a commonly inflatable volume; and
an inflation port, wherein the inflation port is fluidically coupled to the inflatable strut system.
9. The aerosolization mitigation device of claim 8 , wherein the inflatable strut system further comprises a floor strut connected to lower ends of the front left strut and rear left strut and a second top strut connected to the upper end of the front left strut and an upper end of the rear left strut, wherein the front left strut, rear left strut, floor strut, and second top strut are configured to form a generally rectangular outline of a large and unobstructed view of the contained environment.
10. The aerosolization mitigation device of claim 1 , wherein the opening further comprises a drape that extends outwardly from the transparent barrier.
11. The aerosolization mitigation device of claim 1 , further comprising an attachment disposed on the transparent barrier to support at least one of a tool or an electronic device.
12. The aerosolization mitigation device of claim 1 , further comprising a negative pressure relief valve disposed on the transparent barrier to provide an indication of a positive pressure event or a high negative pressure event in the volume around the patient.
13. The aerosolization mitigation device of claim 1 , further comprising a negative pressure flow gauge corresponding to one or more markings formed on the transparent barrier.
14. An aerosolization mitigation device, comprising: an inflatable strut system comprising: a front left strut and a front right strut; a rear left strut and a rear right strut; a top strut connected to upper ends of the front left strut and front right strut; and a window strut is connected from an upper end of the rear left strut, to the top strut between the front left strut and front right strut, then to an upper end of the rear right strut, and then to an upper end of a rear middle strut; a transparent barrier configured to enclose a portion of a patient in a contained environment, the transparent barrier comprising a floor panel and a window panel, wherein the window panel is outlined by the window strut, wherein the transparent barrier is configured to form a volume around the patient when the inflatable strut system is in an inflated state, and wherein the front left strut, front right strut, rear left strut, and right rear strut, extend upward from the floor panel when the inflatable strut system is in the inflated state; an opening between the front left strut and the right front strut configured to be sealed around the patient; a negative pressure channel configured to be coupled to a source of negative pressure, wherein the negative pressure channel is configured to generate a negative pressure in the volume around the patient in response to an application of the source of negative pressure; and an access port configured to provide a flow limited passageway through the transparent barrier into the volume around the patient when the inflatable strut system is in the inflated state.