IP Library › Granted Patent US 11,918,828
Granted Patent B2
US 11,918,828 · App. 17/321,987 · Granted Mar 5, 2024

Apparatus, method, and system for selectively effecting and/or killing bacteria

Inventors: Gerhard Randers-Pehrson (Ossining, NY); David Jonathan Brenner (New York, NY); Alan Bigelow (New York, NY)
Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
A61N5/0624A61B18/18A61L2/0047A61N5/0601A61B2018/1807A61N5/0616A61N2005/0654A61N2005/0655A61N2005/0661A61N2005/0667
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Quick Facts
Patent No.
US 11,918,828
App. No.
17/321,987
Granted
Mar 5, 2024
Kind
B2
Abstract

Certain exemplary embodiments can provide an apparatus and method for generating at least one radiation. The exemplary apparatus and/or method can selectively kill and/or affect at least one bacteria. For example, a radiation source first arrangement can be provided which is configured to generate at least one radiation having one or more wavelengths provided in a range of about 190 nanometers (nm) to about 230 nm, and at least one second arrangement can be provided which is configured to prevent the at least one radiation from having any wavelength that is outside of the range.

Claims (26)

1. A method for selectively killing or affecting an airborne-based pathogen in an airborne environment, comprising:

providing at least one radiation having at least one wavelength that is in a range of between about 190 nanometers (nm) to about 230 nm; and

preventing, with a single filter, all ultraviolet wavelengths of UVC wavelengths of the at least one radiation that are below 190 nm and above 230 nm from passing.

2. The method of claim 1 , further comprising directing the at least one radiation using at least one excilamp.

3. The method of claim 2 , wherein the at least one excilamp includes at least one of a krypton-bromine lamp or a krypton-chlorine lamp.

4. The method of claim 2 , wherein the prevention includes substantial filtering of the at least one radiation using the single filter.

5. The method of claim 4 , wherein the single filter is a chemical filter or a dielectric filter.

6. The method of claim 4 , wherein the prevention of all ultraviolet wavelengths that are below 190 nm and above a 230 nm from passing through the single filter includes filtering out the at least one bactericidal radiation that has a peak wavelength below 190 nm and above 230 nm.

7. The method of claim 1 , wherein the selectively killing or damaging the airborne-based pathogen includes, at a same time, avoiding harm to cells of the body.

8. The method of claim 1 , wherein the prevention of all wavelengths in the range of 190 nm and above 230 nm comprises allowing every allowed wavelength above about 190 nm and below about 230 nm to pass.

9. The method of claim 1 , further comprising providing the at least one radiation from within a housing through a window thereof in a first direction that is substantially parallel to a second direction of irradiation of the at least one radiation through the window.

10. The method of claim 1 , wherein the single filter is a bandpass filter.

11. The method of claim 1 , further comprising fluorescing visible light to indicate that the at least one excilamp is operating with the single filter.

12. An apparatus for generating at least one radiation to kill or damage an airborne-based pathogen in an airborne environment, comprising:

at least one device configured to:

(i) provide the at least one radiation having one or more wavelengths that is in a range of about 190 nanometers (nm) to about 230 nm, and

(ii) prevent all ultraviolet wavelengths of UVC wavelength range of the at least one radiation that are below 190 nm and above 230 nm from passing using a single filter of the at least one device.

13. The apparatus of claim 12 , wherein the at least one device includes at least one radiation source which is configured to provide the at least one radiation.

14. The apparatus of claim 13 , wherein the at least one radiation source includes an excilamp.

15. The apparatus of claim 12 , wherein the single filter is configured to prevent all ultraviolet wavelengths of UVC wavelength range of the at least one radiation that are below about 190 nm and above about 230 nm from passing.

16. The apparatus of claim 15 , wherein the single filter is a chemical filter or a dielectric.

17. The apparatus of claim 12 , wherein the at least one radiation is further configured to selectively damage or destroy the airborne-based pathogen on a surface or in an aerosol.

18. The apparatus of claim 12 , wherein the at least one device is further configured to generate the at least one radiation having a single wavelength, and wherein the single filter is further configured to prevent the at least one radiation from having any wavelength of the UVC wavelength range below 190 nm and above 230 nm.

19. The apparatus of claim 18 , wherein the single wavelength is about 207 nm or about 222 nm.

20. The apparatus of claim 12 , wherein the range is about 207 nm to about 222 nm.

21. The apparatus of claim 12 , wherein the single filter is a bandpass filter.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 17, 2021
From: RANDERS-PEHRSON, GERHARD; BRENNER, DAVID JONATHAN; BIGELOW, ALAN
To: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
Reel/Frame 056260/0264 →
Continuity (6)
Continuation 16453565 · Jun 26, 2019
Continuation 14886635 · Oct 19, 2015
Division 14021631 · Sep 9, 2013
Continuation In Part PCTUS2012027963 · Mar 7, 2012
Provisional Application 61450038 · Mar 7, 2011
Related Publication 20210339045A1 · Nov 4, 2021