Multipurpose medical illuminator with magnification

• US 10,441,379 B2
• Filed: 12/28/2017
• Issued: 10/15/2019
• Est. Priority Date: 12/28/2017
• Status: Active Grant

• Current Assignee: Dermlite LLC
• Original Assignee: 3GEN Incorporated
• Inventors: Mullani, Nizar
• Primary Examiner(s): Nguyen, Thong Q
• Application Number:
  US15/856,606
• Publication Number:
  US 20190201156A1
• Time in Patent Office: 656 Days
• CPC Class Codes: A61B 2090/309 using white LEDs
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/441 Skin evaluation, e.g. for skin disorder diagnosis
• CPC Class Codes: A61B 90/13 guided by light, e.g. laser pointers
• CPC Class Codes: A61B 90/35 Supports therefor
• CPC Class Codes: A61B 90/361 Image-producing devices, e.g. surgical cameras
• CPC Class Codes: G02B 25/007 comprising other optical elements than lenses G02B25/004, G02B25/005 take precedence
• CPC Class Codes: G02B 25/008 comprising two or more lenses G02B25/004 - G02B25/007 take precedence
• CPC Class Codes: G02B 25/02 with means for illuminating object viewed
• CPC Class Codes: G02B 5/3025 Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state G02B5/3008, G02B5/3016 take precedence

Abstract

The disclosure demonstrates a multipurpose illuminator used in medical examinations. The multipurpose illuminator described herein employs a housing incorporating two magnification viewing lenses each having different powered magnification that allows medical practitioners to view patient tissue and structures using two different magnifications. A battery power source is also contained in the housing to provide power to an illumination source. The illumination source may include an array of LEDs to provide light for viewing the patient tissue and matter. The illumination source and the lenses may be cross polarized relative to each other to provide enhanced viewing of the patient tissues and structures. A switch is provided to initiate the LED illumination source or to provide modes of operation that provide certain of the LEDs being illuminated.

Claims

1. An illumination device for non-contact illumination of organic tissue comprising:

a housing;

a first polarized lens assembly positioned in the housing and having a first lens and a first polarizer, the first lens being disposed about a first viewing axis and being of a first magnification power;

a second polarized lens assembly positioned in the housing and having a second lens and a second polarizer, the second lens being disposed about a second viewing axis and being of a second magnification power, the first and second lenses being separate from each other and the first and second viewing axes being spaced apart from each other;

at least one polarized light source positioned in the housing and including a light element and a light polarizer; and

wherein either one or both of the first and second polarizers are cross-polarized relative to the at least one polarized light source.

2. The illumination device of claim 1, wherein the at least one polarized light source comprises:

a first light source positioned in the housing to provide light for the first lens; and

a second light source positioned in the housing to provide light for the second lens.

3. The illumination device of claim 2 wherein said first light source is an array of LEDs, and said second light source is an array of LEDs.

4. The illumination device of claim 3 wherein said array of LEDs of said first light source and the array of LEDs of the second light source share at least one LED.

5. The illumination device of claim 2 further comprising a switch in electrical communication with said light sources, said switch adapted to toggle each of the light sources off and on.

6. The illumination device of claim 2 wherein said first and second light sources each include at least one LED.

7. The illumination device of claim 6 wherein said LEDs are white light LEDs.

8. The illumination device of claim 2 wherein said first and second light sources each include at least one surface mount high power LED.

9. The illumination device of claim 1 further comprising a battery power source incorporated into said housing.

10. The illumination device of claim 1 wherein the first lens magnification is in the range of 1.2×

to 3.0×

.

11. The illumination device of claim 1 wherein the first lens magnification is 1.43×

.

12. The illumination device of claim 1 wherein the second lens magnification is in the range of 5×

to 10×

.

13. The illumination device of claim 1 wherein the second lens magnification is 6×

.

14. The illumination device of claim 1, wherein the housing includes a first opening, the first lens being optically aligned with the first opening.

15. The illumination device of claim 14, wherein the housing includes a second opening, the second lens being optically aligned with the second opening.

16. An illumination device for illumination of organic tissue, the illumination device comprising:

a housing having a first opening defining a first axis and a second opening defining a second axis, the first and second openings being separate from each other and the first and second axes being spaced apart from each other;

a first lens having a first magnification power coupled to the housing and in optical alignment with the first opening;

a second lens having a second magnification power coupled to the housing and in optical alignment with the second opening, the second lens being separated from the first lens;

a first lens polarizer in optical alignment with the first lens;

a second lens polarizer in optical alignment with the second lens and separated from the first lens polarizer;

a plurality of light sources coupled to the housing; and

at least one light source polarizer in alignment with at least one of the plurality of light sources for polarizing at least a portion of the light emitted from the at least one of the plurality of light sources.

17. The illumination device of claim 16, wherein the plurality of light sources includes a first pair of light sources arranged in diametrically opposed relation to the first lens.

18. The illumination device of claim 17, wherein the plurality of light sources includes a second pair of light sources arranged in diametrically opposed relation to the second lens.

19. The illumination device of claim 18, wherein the first pair of light sources and the second pair of light sources includes a common light source.

20. The illumination device of claim 16, wherein the housing includes a plurality of openings in optical alignment with respective ones of the plurality of light sources.

21. An illumination device for illumination of organic tissue, the illumination device comprising:

a housing having first and second openings;

a first lens having a first magnification power coupled to the housing and in optical alignment with the first opening;

a second lens having a second magnification power coupled to the housing and in optical alignment with the second opening, the second lens being separated from the first lens;

at least one lens polarizer in optical alignment with either one or both of the first lens and the second lens;

a plurality of light sources coupled to the housing and including a first pair of light sources arranged in diametrically opposed relation to the first lens, a second pair of light sources arranged in diametrically opposed relation to the second lens, wherein the first pair of light sources and the second pair of light sources includes a common light source; and

at least one light source polarizer in alignment with at least one of the plurality of light sources for polarizing at least a portion of the light emitted from the at least one of the plurality of light sources.

22. An illumination device for illumination of organic tissue, the illumination device comprising:

a housing having first and second openings;

a first lens having a first magnification power coupled to the housing and in optical alignment with the first opening;

a second lens having a second magnification power coupled to the housing and in optical alignment with the second opening, the second lens being separated from the first lens;

a first lens polarizer in optical alignment with the first lens;

a second lens polarizer in optical alignment with the second lens and separated from the first lens polarizer;

a plurality of light sources coupled to the housing, the plurality of light sources including a first pair of light sources arranged in diametrically opposed relation to the first lens and a second pair of light sources arranged in diametrically opposed relation to the second lens, the first pair of light sources and the second pair of light sources including a common light source; and

at least one light source polarizer in alignment with at least one of the plurality of light sources for polarizing at least a portion of the light emitted from the at least one of the plurality of light sources.