IP Library › Granted Patent US 9,851,074

Granted Patent B2

US 9,851,074 · App. 15/150,951 · Granted Dec 26, 2017

Surgical illuminator

Inventors: Rein Teder (Bloomington, MN); Roger William Heegaard (St. Paul, MN)

Assignee: Enova Illumination, LLC

F21V14/065 F21L4/02 F21V5/007 F21V23/005 F21V29/74 F21W2131/205 F21Y2101/02

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Quick Facts

Patent No.: US 9,851,074
App. No.: 15/150,951
Granted: Dec 26, 2017
Kind: B2

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Abstract

The present invention provides a surgical illuminator. The surgical illuminator includes a base, a guide barrel, a cam barrel, a grip ring, a lens barrel, a printed circuit board having three light emitting diodes, a triple aspheric lens, a first lens mask, a triple double-convex lens and a triple double-convex lens. Methods of using the surgical illuminator are also provided.

Claims (105)

1. A surgical illuminator comprising

a base having a proximal end, a distal end, a first surface, a second surface, and a third surface;

a guide barrel having a proximal end, a distal end, a first surface, and a second surface,

wherein the first surface of the guide barrel is adjacent to the third surface of the base,

wherein the second surface of the guide barrel is configured to accept a first surface of a cam barrel having a proximal end, a distal end, a first surface, and a second surface,

wherein the cam barrel comprises one or more helical slots each independently spanning about 270 degrees,

wherein the guide barrel and the cam barrel are each independently configured to accept a cam roller;

a grip ring having a proximal end, a distal end, a first surface, and a second surface,

wherein the first surface of the grip ring is configured to accept the second surface of the cam barrel:

a lens barrel having a proximal end, a distal end, a first surface, and a second surface,

wherein the first surface of the lens barrel is configured to retain a first lens mask having a proximal end and a distal end,

wherein the second surface of the lens barrel is adjacent to the first surface of the guide barrel;

a printed circuit board having a first surface and a second surface,

wherein the first surface of the printed circuit board comprises three symmetrically distributed light emitting diodes,

wherein the second surface of the printed circuit board is facing the first surface of the base,

wherein the first surface of the printed circuit board is facing the distal end of the first lens mask;

a triple aspheric lens having a proximal end, a distal end, a first surface, a second surface, and a third surface,

wherein the second surface of the triple aspheric lens is planar and in contact with the proximal end of the first lens mask,

wherein the first surface of the triple aspheric lens comprises three symmetrically distributed convex surfaces:

a second lens mask having a proximal end, a distal end, a first surface, and a second surface,

wherein the second lens mask is configured to accept three convex surfaces of the triple aspheric lens;

a triple double-convex lens having a proximal end, a distal end, a first surface, a second surface, and a third surface,

wherein the triple double-convex lens comprises three symmetrically distributed double-convex surfaces,

wherein the distal end of the triple double-convex lens is adjacent to the proximal end of the second lens mask:

a triple double-convex lens housing having a proximal end, a distal end, a first surface, a second surface, and a third surface,

wherein the triple double-convex lens is mounted axially inside the triple double-convex lens housing so that the third surface of the triple double-convex lens is adjacent to the first surface of the triple double-convex lens housing, and

wherein the first surface of the triple double-convex lens housing is configured to accept the second surface of the lens barrel.

2. The surgical illuminator of claim 1 , wherein the guide barrel and the cam barrel are each independently configured to accept a cam roller extending through the guide barrel and the cam barrel.

3. The surgical illuminator of claim 1 , wherein the second surface of the grip ring comprises a knurled surface.

4. The surgical illuminator of claim 1 , wherein the first lens mask comprises a symmetrical three 3-prong first lens mask and wherein the second lens mask comprises a symmetrical 3-prong second lens mask.

5. The surgical illuminator of claim 1 , wherein the three symmetrically distributed light emitting diodes each independently feature about an 80 degree radiation pattern, and maximum forward current of about 800 mA.

6. The surgical illuminator of claim 1 , further comprising a power source operatively connected to the printed circuit board and an on/off switch.

7. The surgical illuminator of claim 1 , wherein a distance (Do) between the second surface of the printed circuit board and a planar surface of the triple aspheric lens is about 8 mm.

8. The surgical illuminator of claim 1 , wherein each of the symmetrically distributed convex surfaces of the triple aspheric lens each independently has a diameter of about 16 mm and a focal length of about 17.5 mm and wherein each of the symmetrically distributed convex surfaces of the triple double-convex lens has a diameter of about 18 mm and a focal length of about 75 mm.

9. The surgical illuminator of claim 1 , further comprising a heat sink having a proximal end, a distal end, a first surface, and a second surface, wherein the first surface of the heat sink is configured to accept an O-ring and wherein the second surface of the heat sink comprises one or more cooling fins.

10. A surgical illuminator comprising

a cylindrical base having a proximal end, a distal end, a first surface, a second surface, and a third surface;

a cylindrical guide barrel having a proximal end, a distal end, a first surface, and a second surface,

wherein the first surface of the cylindrical guide barrel is adjacent to the third surface of the cylindrical base,

wherein the second surface of the cylindrical guide barrel is configured to accept a first surface of a cylindrical cam barrel having a proximal end, a distal end, a first surface, and a second surface,

wherein the cylindrical cam barrel comprises one or more helical slots each independently spanning about 270 degrees,

wherein the cylindrical guide barrel and the cylindrical cam barrel are each independently configured to accept a cam roller extending through the cylindrical guide barrel and the cylindrical cam barrel:

a cylindrical grip ring having a proximal end, a distal end, a first surface, and a second surface,

wherein the first surface of the cylindrical grip ring is configured to accept the second surface of the cylindrical cam barrel, wherein the second surface of the cylindrical grip ring comprises a knurled surface;

a cylindrical lens barrel having a proximal end, a distal end, a first surface, and a second surface,

wherein the first surface of the cylindrical lens barrel is configured to retain a first lens mask having a proximal end and a distal end,

wherein the first lens mask comprises a symmetrical three 3-prong first lens mask;

wherein the second surface of the cylindrical lens barrel is adjacent to the first surface of the cylindrical guide barrel;

a printed circuit board having a first surface and a second surface,

wherein the first surface of the printed circuit board comprises three symmetrically distributed light emitting diodes,

wherein the second surface of the printed circuit board is facing the first surface of the cylindrical base,

wherein the first surface of the printed circuit board is facing the distal end of the first lens mask:

a triple aspheric cylindrical lens having a proximal end, a distal end, a first surface, a second surface, and a third surface,

wherein the second surface of the triple aspheric cylindrical lens is planar and in contact with the proximal end of the first lens mask,

wherein the first surface of the triple aspheric cylindrical lens comprises three symmetrically distributed convex surfaces;

a second lens mask having a proximal end, a distal end, a first surface, and a second surface,

wherein the second lens mask is configured to accept three convex surfaces of the triple aspheric cylindrical lens,

wherein the second lens mask comprises a symmetrical 3-prong second lens mask;

a triple double-convex cylindrical lens having a proximal end, a distal end, a first surface, a second surface, and a third surface,

wherein the triple double-convex cylindrical lens comprises three symmetrically distributed double-convex surfaces,

wherein the distal end of the triple double-convex cylindrical lens is adjacent to the proximal end of the second lens mask;

a triple double-convex cylindrical lens housing having a proximal end, a distal end, a first surface, a second surface, and a third surface,

wherein the triple double-convex cylindrical lens is mounted axially inside the triple double-convex cylindrical lens housing so that the third surface of the triple double-convex cylindrical lens is adjacent to the first surface of the triple double-convex cylindrical lens housing, and

wherein the first surface of the triple double-convex cylindrical lens housing is configured to accept the second surface of the cylindrical lens barrel.

11. The surgical illuminator of claim 10 , wherein the three symmetrically distributed light emitting diodes each independently feature about an 80 degree radiation pattern, and maximum forward current of about 800 mA.

12. The surgical illuminator of claim 10 , further comprising a power source operatively connected to the printed circuit board and an on/off switch.

13. The surgical illuminator of claim 10 , wherein a distance (Do) between the second surface of the printed circuit board and a planar surface of the triple aspheric cylindrical lens is from about 8 mm.

14. The surgical illuminator of claim 10 , wherein each of the symmetrically distributed convex surfaces of the triple aspheric cylindrical lens each independently has a diameter of about 16 mm and a focal length of about 17.5 mm and wherein each of the symmetrically distributed convex surfaces of the triple double-convex cylindrical lens has a diameter of about 18 mm and a focal length of about 75 mm.

15. The surgical illuminator of claim 10 , further comprising a heat sink having a proximal end, a distal end, a first surface, and a second surface, wherein the first surface of the heat sink is configured to accept an O-ring and wherein the second surface of the heat sink comprises one or more cooling fins.

16. A surgical illuminator comprising:

a heat sink having a proximal end, a distal end, a first surface, and a second surface,

wherein the first surface of the heat sink is configured to accept an O-ring,

wherein the second surface of the heat sink comprises one or more cooling fins;

a cylindrical base having a proximal end, a distal end, a first surface, a second surface, and a third surface,

wherein the second surface of the cylindrical base is facing the first surface of the heat sink: