Systems and methods for decontamination of patient care equipment and interior spaces

Patent metadata

Field	Value
Publication number	US-12268794-B2
Application number	US-202117211572-A
Country	US
Kind code	B2
Filing date	Mar 24, 2021
Priority date	Mar 28, 2020
Publication date	Apr 8, 2025
Grant date	Apr 8, 2025

Abstract

A system for decontamination of patient care equipment and a system for decontamination of an interior space. In some embodiments, a decontaminant distributor is provided in an enclosure and coupled to a decontaminant generator system. The decontaminant generator system may include a decontaminant generator removably coupled to the decontaminant distributor at an exterior of the enclosure for allowing the decontaminant generator to be removed and connected to another decontaminant distributor associated with another system for decontamination of patient care equipment. An air agitation system may be provided in the enclosure for agitating air and decontaminant in the enclosure. In some embodiments, a portable system may be transported to an interior space for decontaminating the items in the space using hot-air decontamination. A rack configuration for drying patient care equipment may include at least one duct having openings in a top and/or bottom surface thereof for directing pressurized dry air toward the patient care equipment.

First claim

What is claimed is:

1. A system for decontamination of patient care equipment, the system comprising:
a portable enclosure;
a blower;
a rack configuration disposed in the portable enclosure for supporting patient care equipment, the rack configuration including at least one rack comprising a duct having top and bottom surfaces and an open end for receiving pressurized air from the blower, at least one of the top and bottom surfaces having at least one opening therein for directing the pressurized air toward the patient care equipment;
a partition in the portable enclosure to define a decontamination chamber and an anteroom, the anteroom including controls to start a decontamination cycle, and the partition being sealed to prevent a decontaminant from entering the anteroom from the decontamination chamber;
a sealable decontaminant chamber entry door in the partition for allowing access to the decontaminant chamber from the anteroom;
a sealable anteroom entry door for allowing access to the anteroom from an exterior of the portable enclosure, the sealable decontaminant chamber entry door and the sealable anteroom entry door being configured to seal the anteroom from the decontamination chamber and the exterior of the portable enclosure to establish the anteroom as a sealed airlock;
a decontaminant distributor comprising piping disposed in the interior of the decontamination chamber but not in the anteroom for distributing the decontaminant in the decontamination chamber and not in the anteroom; and
a decontaminant generator system, the decontaminant generator system comprising a decontaminant generator for providing the decontaminant to the decontaminant distributor, the decontaminant generator removably coupled to the decontaminant distributor at an exterior of the portable enclosure for allowing the decontaminant generator to be removed and connected to another decontaminant distributor associated with another system for decontamination of patient care equipment.

2. A system according to claim 1 , the system further comprising an air agitation system for agitating the decontaminant in the enclosure.

3. A system according to claim 1 , wherein the decontaminant comprises vaporized hydrogen peroxide.

4. A system according to claim 1 , the system further comprising a filter disposed in the sealable decontaminant chamber entry door and a cover for covering the filter during decontamination of patient care equipment.

5. A system according to claim 1 further comprising at least one chemical indicator card disposed in the portable enclosure to provide a visual indication of a level of decontamination provided to the patient care equipment.

6. A system according to claim 1 , further comprising at least one heating element coupled to an exterior of the portable enclosure for heating an interior of a decontamination chamber portion of the enclosure.

7. A system according to claim 1 further comprising a door interlock configuration acting on the sealable anteroom entry door to maintain the sealable anteroom entry door in a locked state until the decontaminant in at least a portion of the decontamination chamber is below a predetermined level.

8. A system according to claim 1 , wherein the decontaminant generator system is configured in a closed loop configuration for decontaminating the patient care equipment during a decontamination cycle and in an open loop configuration for degassing the enclosure after the decontamination cycle.

9. A system according to claim 1 , wherein the decontaminant generator comprises a vaporizer having a chamber therein for vaporizing the decontaminant and wherein the system further comprises a level sensor for detecting fluid in the chamber.

10. A system according to claim 9 , wherein the level sensor comprises first and second spaced probes in fluid communication with the chamber.

11. The system according to claim 9 , wherein the decontaminant generator system further comprises:
a primary supply of the decontaminant and a secondary supply of the decontaminant, wherein:
the primary supply of the decontaminant is pumped into the secondary supply of the decontaminant;
the secondary supply of the decontaminant is pumped into the decontaminant generator; and
the decontaminant from the secondary supply is used for the decontamination cycle while the primary supply is replaced.

12. A system according to claim 1 , wherein the at least one opening is in the top surface.

13. A system according to claim 12 , wherein the at least one opening is defined by a connecting duct having a first open end above the top surface and a second open end in the duct between the top surface and the bottom surface.

14. A system according to claim 1 , wherein the at least one opening is in the bottom surface.

15. A system according to claim 1 , wherein the at least one rack comprises a first rack positioned beneath a second rack, and the at least one opening in the first rack is in the top surface of the first rack and the at least one opening in the second rack is in the top surface of the second rack.

16. A system according to claim 1 , wherein the at least one rack comprises a first rack positioned beneath a second rack, and the at least one opening in the first rack is in the top surface of the first rack and the at least one opening in the second rack comprises at least one opening in the top surface of the second rack and at least one opening in the bottom surface of the second rack.

17. A method of decontaminating patient care equipment comprising:
placing the patient care equipment in the portable enclosure according to claim 1 ;
operating the decontaminant generator to generate and distribute the decontaminant in the portable enclosure;
disconnecting the decontaminant generator from the decontaminant distributor; and
connecting the decontaminant generator to another system for decontamination of patient care equipment.

18. A method according to claim 17 , further comprising placing at least one chemical indicator card in the portable enclosure to provide a visual indication of a level of decontamination provided to the patient care equipment.

19. A method according to claim 17 , the method further comprising agitating the air in the portable enclosure.

20. A method according to claim 17 , further comprising energizing at least one heating element coupled to an exterior of the portable enclosure for heating an interior of a decontamination chamber portion of the enclosure.

21. A method according to claim 17 , further comprising degassing the portable enclosure by operating a second blower.

Assignees

• Battelle Memorial Institute

Inventors

• Eastep Jon
• Richter William
• Yugulis Kevin
• Kaufman Ryan

Classifications

• A61L2103/15

  Laboratory, medical or dentistry appliances, e.g. catheters or sharps · CPC title

• A61L2209/211

  Use of hydrogen peroxide, liquid and vaporous · CPC title

• A61L2209/14

  Filtering means · CPC title

• A61L2209/111

  Sensor means, e.g. motion, brightness, scent, contaminant sensors · CPC title

• A61L2202/16

  Mobile applications, e.g. portable devices, trailers, devices mounted on vehicles · CPC title