Sterile handle control mechanism

1. A surgical light comprising:

a light housing having at least one light source therein; and

a handle assembly extending from the light housing, the handle assembly including a base, a knob and a cover;

the base having at least one first sensor at a face of the base;

the knob extending from the face of the base and being connected to the base;

the cover covering the knob and the face of the base, the cover including at least one first area for covering the at least one first sensor;

the knob and the cover being movably mounted relative to the light housing;

movement of the knob and the cover without engagement of the at least one first sensor by placing a digit of a user at the at least one first area causes alteration of a first characteristic of light emitted from the at least one light source; and

movement of the knob and the cover with engagement of the at least one first sensor by placing the digit of the user at the at least one first area causes alteration of a second characteristic of light emitted from the at least one light source.

2. The surgical light according to claim 1 , wherein:

the base further has at least one second sensor at the face of the base;

the cover further includes at least one second area for covering the at least one second sensor; and

movement of the knob and the cover with engagement of the at least one second sensor by placing the digit of the user at the at least one second area causes alteration of a third characteristic of light emitted from the at least one light source.

3. The surgical light according to claim 1 , wherein:

the at least one first sensor is a proximity sensor sensing placement of the digit into the at least one first area.

4. The surgical light according to claim 1 , wherein:

the face comprises a recess covering the at least one first sensor and the at least one first area comprises a recessed area received within the recess of the face.

5. The surgical light according to claim 1 , wherein:

the cover is removably positioned on the base and the knob.

6. The surgical light according to claim 5 , wherein:

the base includes a locking lever for locking the cover on the base and the knob.

7. The surgical light according to claim 1 , wherein:

one of the first characteristic and the second characteristic is an intensity of the at least one light source.

8. The surgical light according to claim 1 , wherein:

one of the first characteristic and the second characteristic is a size of a beam area of the at least one light source.

9. The surgical light according to claim 1 , wherein:

one of the first characteristic and the second characteristic is color of light emitted from the at least one light source.

10. The surgical light according to claim 1 , wherein:

the knob and the cover are rotatably mounted relative to the light housing such that rotation of the knob and the cover without engagement of the at least one first sensor by placing the digit of the user at the at least one first area causes alteration of the first characteristic of light emitted from the at least one light source and rotation of the knob and the cover with engagement of the at least one first sensor by placing the digit of the user at the at least one first area causes alteration of the second characteristic of light emitted from the at least one light source.

11. A handle assembly comprising:

a base having at least one first sensor at a face of the base;

a knob extending from the face of the base and being connected to the base;

a cover covering the knob and the face of the base, the cover including at least one first area for covering the at least one first sensor;

movement of the knob and the cover without engagement of the at least one first sensor by placing a digit of a user at the at least one first area causes the base to send a first signal; and

movement of the knob and the cover with engagement of the at least one first sensor by placing the digit of the user at the at least one first area causes the base to send a second signal.

12. The handle assembly according to claim 11 , wherein:

the base further has at least one second sensor at the face of the base;

the cover further includes at least one second area for covering the at least one second sensor; and

movement of the knob and the cover with engagement of the at least one second sensor by placing the digit of the user at the at least one second area causes the base to send a third signal.

13. The handle assembly according to claim 11 , wherein:

the at least one first sensor is a proximity sensor sensing placement of the digit into the at least one first area.

14. The handle assembly according to claim 11 , wherein:

the face comprises a recess covering the at least one first sensor and the at least one first area comprises a recessed area received within the recess of the face.

15. The handle assembly according to claim 11 , wherein:

the cover is removably positioned on the base and the knob.

16. The handle assembly according to claim 15 , wherein:

the base includes a locking lever for locking the cover on the base and the knob.

17. A surgical light handle cover comprising:

a knob covering portion including a circular side wall and a top wall; and

a face plate covering portion connected to a bottom edge of the knob covering portion, the face plate covering portion including a disc-shaped plate having a top surface and a bottom surface and a plurality of recessed portions extending from the top surface of the disc-shaped plate in a direction away from the knob covering portion,

wherein the recessed portions in the disc-shaped plate include a plurality of inner recessed portions forming a first inner circle about the knob covering portion and a plurality of outer recessed portions forming a second outer circle about the inner circle of the inner recessed portions in the disc-shaped plate.

18. The surgical light handle cover of claim 17 , wherein:

the circular side wall has a frustoconical shape with a slight taper.

19. The surgical light handle cover of claim 17 , wherein:

the knob covering portion and the face plate covering portion are made of substantially rigid material.

20. The surgical light handle cover of claim 17 , wherein:

the knob covering portion and the face plate covering portion are made of substantially flexible material.

21. A surgical light comprising:

a light housing having at least one light source therein; and

a handle assembly extending from the light housing, the handle assembly including a knob and a cover;

the knob and the cover being movably mounted relative to the light housing;

the cover covering the knob;

the handle assembly including an actuator;

a first activation of the actuator causing alteration of a first characteristic of light emitted from the at least one light source when the knob is rotated relative to the light housing; and

a second activation of the actuator causing alteration of a second characteristic of light emitted from the at least one light source when the knob is rotated relative to the light housing.

22. The surgical light according to claim 21 , wherein:

a third activation of the actuator causes alteration of a third characteristic of light emitted from the at least one light source when the knob is rotated relative to the light housing.

23. The surgical light according to claim 21 , wherein:

one of the first characteristic and the second characteristic is an intensity of the at least one light source.

24. The surgical light according to claim 21 , wherein:

one of the first characteristic and the second characteristic is a size of a beam area of the at least one light source.

25. The surgical light according to claim 21 , wherein:

one of the first characteristic and the second characteristic is color of light emitted from the at least one light source.

26. The surgical light according to claim 21 , further including:

a first light for indicating that rotation of the knob will cause the first characteristic to be altered; and

a second light for indicating that rotation of the knob will cause the second characteristic to be altered.

27. The surgical light according to claim 21 , wherein:

the actuator includes a button on the cover and a push rod extending through the knob; and

the button and the push rod are engaged such that movement of the button causes movement of the push rod.

28. A method of adjusting attributes of light emitted from a surgical light comprising:

providing a light housing having at least one light source therein;

providing a handle assembly extending from the light housing, the handle assembly including a knob and a cover;

rotatably connecting the handle assembly to the light housing;

covering the knob with the cover;

engaging the cover in a first mode and rotating the knob to thereby alter a first characteristic of light emitted from the at least one light source; and

engaging the cover in a second mode and rotating the knob to thereby alter a second characteristic of light emitted from the at least one light source.

29. The method of adjusting attributes of light emitted from the surgical light of claim 28 , further including:

providing the handle assembly with an actuator;

wherein engaging the cover in the first mode includes actuating the actuator a first time; and

wherein engaging the cover in the second mode includes actuating the actuator a second time.

30. The method of adjusting attributes of light emitted from the surgical light of claim 28 , further including:

providing the handle assembly with a base having at least one first sensor at a face of the base; and

providing the cover with at least one first area for covering the at least one first sensor;

wherein engaging the cover in the first mode includes not placing a digit of a user at the at least one first area; and

wherein engaging the cover in the second mode includes placing a digit of a user at the at least one first area.

31. The method of adjusting attributes of light emitted from the surgical light of claim 28 , further including:

providing the knob with multiple levels, each of the levels having a different diameter;

wherein engaging the cover in the first mode includes grasping the knob such that at least one of the levels is not grasped; and

wherein engaging the cover in the second mode includes grasping the knob such that the at least one of the levels is grasped.

32. A surgical light comprising:

a light housing having at least one light source therein;

a handle assembly extending from the light housing, the handle assembly including a knob and a cover;

the handle assembly being rotatably connected to the light housing;

the cover covering the knob;

wherein engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source; and

wherein engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

33. The surgical light of claim 32 , wherein:

the handle assembly includes an actuator;

engaging the cover in the first mode includes actuating the actuator a first time; and

engaging the cover in the second mode includes actuating the actuator a second time.

34. The surgical light of claim 32 , wherein:

the handle assembly includes a base having at least one first sensor at a face of the base; and

the cover includes at least one first area for covering the at least one first sensor;

wherein engaging the cover in the first mode includes not placing a digit of a user at the at least one first area; and

wherein engaging the cover in the second mode includes placing a digit of a user at the at least one first area.

35. The surgical light of claim 32 , wherein:

the knob has multiple levels, each of the levels having a different diameter;

wherein engaging the cover in the first mode includes grasping the knob such that at least one of the levels is not grasped; and

wherein engaging the cover in the second mode includes grasping the knob such that the at least one of the levels is grasped.

36. A surgical light comprising:

a light housing having at least one light source therein; and

a handle assembly extending from the light housing, the handle assembly including a knob and a cover, with the knob including a main gripping portion having an axis of rotation and a multiaxis controller having a home position with a center along the axis of rotation, the multiaxis controller being able to be moved such that the center is temporarily not at the axis of rotation;

the knob and the cover being movably mounted relative to the light housing;

the cover covering the knob;

wherein movement of the multiaxis controller such that the center is not at the axis of rotation causes alteration of a characteristic of light emitted from the at least one light source.