High intensity surgical light

Claim 2

A surgical light comprising, sealed light head, a hollow extension arm, a high intensity light source in said light head, cooling means for said light source, said light head having an open end, a line closing said open end, a conduit for air inside said hollow are communicating with the inside of said head, and means to circulate air through said hollow arm, around said light source and through said conduit, said conduit means being concentrically disposed inside said hollow arm.

Claim 3

The light recited in claim 1 wherein said light head is in the form of a cylinder having an open end and an adjusting cylinder telescopically received on said open end, a lens supported in said adjusting cylinder, said adjusting cylinder being adapted to be moved on said light head and to be removed and sterilized.

Claim 4

The light recited in claim 2 wherein sealing means is provided between said light head and said adjusting cylinder, said sealing means comprises an O-shaped sealing washer.

Claim 5

The light recited in claim 3 wherein said means to circulate air comprises a blower supported on a wall, and said extension arm is attached to said wall and said extension arm extends through said wall whereby air is discharged through said wall and is drawn in from the side of said wall remote from said light.

Claim 6

The light recited in claim 4 wherein said wall comprises a ceiling.

Claim 7

The light recited in claim 1 wherein a floor-supported stand is provided and said extension arm is attached to said stand.

Claim 8

A surgical lamp comprising a cylindrical housing having an open end, a generally cylindrical reflector concentrically disposed in said housing, a spider supporting said reflector in the open end of said housing, an adjusting cylinder telescopically received on said housing, an O-ring between said housing and said adjusting cylinder, a lens supported in the end of said adjusting cylinder, a lamp supported in said reflector, a hollow extension arm, means supporting said extension arm over a surgical table, an air conduit having one end connected to said reflector, an air-circulating means having an inlet and an outlet, said outlet of said air-circulating means being connected to said conduit whereby air is circulated through said conduit, over said lamp and out said hollow arm.

Claim 9

A surgical lamp comprising a cylindrical housing having an open end, a generally cylindrical reflector concentrically disposed in said housing, a spider supporting said reflector in the open end of said housing, an adjusting cylinder telescopically received on said housing, an O-ring between said housing and said adjusting cylinder, a lens supported in the end of said adjusting cylinder, a lamp supported in said reflector, a hollow extension arm, means supporting said extension arm over a surgical table, an air conduit having one end connected to said reflector, an air-circulating means having an inlet and an outlet, said outlet of said air-circulating means being connected to said conduit whereby air is circulated through said conduit, over said lamp and out said hollow arm.

Claim 10

The lamp recited in claim 7 wherein said air-circulating means is attached to a floor-supported stand.

Claim 11

The lamp recited in claim 7 wherein said hollow extension arm is attached to a ceiling over a surgical table, said hollow arm is connEcted to said ceiling to discharge air therethrough, said air-circulating means is connected to admit air from side of said ceiling remote from said table, and to circulate air through said conduit over said lamp and through said hollow arm to the side of said ceiling remote from said surgical table.

Claim 12

The lamp recited in claim 9 wherein two spaced said O-rings are disposed between said housing and said cylinder.

Claim 13

The lamp recited in claim 7 in combination with a surgical table, adapted to support a patient at an operating site, said lens being disposed adjacent said operating site.