Nitrogen dioxide storage device
A nitric oxide delivery system can include a cassette which is a single use disposable component used to store liquid N 2 O 4 activate upon operator demand, convert N 2 O 4 to NO 2 via a heating element(s) controlled by a console to deliver NO 2 at a controlled flow rate, direct concentrated NO 2 to a contained pair of conversion cartridges and exhaust NO gas to the console for delivery to the patient.
1. An apparatus comprising
a liquid module comprising a plurality of safety elements and an ampule comprising liquid N 2 O 4 ; wherein the ampule is secured in a two-position component, wherein the two-position component comprises a first of the plurality of safety elements present at each position, wherein the ampule is shuttled within the two-positioned component between the two positions in linear, rotational, and/or radial motion;
wherein the apparatus forms gaseous NO from the liquid N 2 O 4 for inhalation; and
wherein the plurality of safety elements prevent environmental exposure to the liquid N 2 O 4 .
2. The apparatus of claim 1 , wherein the liquid module further comprises one or more heating devices that are in electrical and thermal communication with the ampule.
3. The apparatus of claim 1 , wherein the first of the plurality of one or more safety elements present at each position comprises a seal.
4. The apparatus of claim 1 , wherein a second of the plurality of safety elements comprises an affixing member that secures the ampule to the two-position component.
5. The apparatus of claim 4 , wherein the affixing member is a shard containment barrier.
6. The apparatus of claim 1 , wherein one of the two positions of the two-positions component is in communication with an inerting chamber.
7. The apparatus of claim 1 , wherein a second of the two positions of the two-positions component is an output side configured to deliver the gaseous NO for inhalation.
8. The apparatus of claim 1 , wherein the inerting chamber comprises a colored material configured to indicate a breakage of the ampule.
9. The apparatus of claim 1 , wherein a third of the plurality of safety elements comprise a leak-valve.
10. The apparatus of claim 1 , wherein a fourth of the plurality of safety elements comprise a seal positioned at an air inflow port of the apparatus and a seal positioned at a NO gas outflow port of the apparatus.
11. The apparatus of claim 1 , wherein a fifth of the plurality of safety elements comprise a purge material.
12. The apparatus of claim 1 , wherein the liquid module is capable of withstanding internal pressure up to 100 psi and a temperature of up to 70° C.
13. The apparatus of claim 1 , further comprising a restrictor.
14. The apparatus of claim 1 , further comprising a cartridge comprising a porous rigid matrix and an antioxidant, wherein the cartridge is configured to form the gaseous NO.