Surgical table extension for use with a surgical table

1 . A surgical table extension for use with a surgical table, the surgical table extension comprising:

a leg comprising a base;

first and second rails extending from the leg;

a hinge disposed on the leg, the hinge is configured to permit movement of the first and second rails about at least a first axis relative to the leg;

a cross-bar connecting respective ends of the first and second rails; and

first and second clamps configured to clamp the cross-bar to the surgical table, each of the first and second clamps comprising:

an extension bar slidably disposed relative to the cross-bar for moving the first and second clamps in a direction orthogonal to an extending direction of the first and second rails to accommodate a width of the surgical table;

a first lock for independently locking the extension bar relative to the cross-bar; and

a second lock for independently locking the respective first and second clamps to the surgical table;

wherein the first and second clamps being fixed to the respective ends of the extension bar such that the first and second clamps move together with the extension bar.

2 . The surgical table extension of claim 1 , wherein the first lock comprises:

a clamp body;

a locking lever rotatable relative to an outer surface of the clamp body;

a pawl movable relative to an outer surface of the cross-bar between an unlocked position where a surface of the pawl is withdrawn from the outer surface of the cross-bar and a locked position where the surface of the pawl is extended to engage the outer surface of the cross-bar; and

an intermediary link having a first end engaged with the locking lever and a second end engaged with the pawl such that the intermediary link urges the pawl into the locked position when the locking lever is rotated in a first direction relative to the clamp body and the pawl is urged into the unlocked position when the locking lever is rotated in a second direction, opposite to the first direction.

3 . The surgical table extension of claim 1 , further comprising third and fourth clamps disposed on respective ends of the first and second rails for clamping the respective ends of the first and second rails to the cross-bar.

4 . The surgical table extension of claim 3 , wherein the third and fourth clamps are each rotatable about a center axis of the cross-bar.

5 . The surgical table extension of claim 4 , wherein each of the third and fourth clamps comprise a third lock for independently locking each of the third and fourth clamps to the cross-bar while permitting rotation of the third and fourth clamps about the center axis of the cross-bar.

6 . The surgical table extension of claim 5 , wherein the third lock comprises:

a clamp body having a slot for acceptance of the cross-bar;

a locking lever rotatable relative to an outer surface of the clamp body;

a pawl movable relative to the slot between an unlocked position where a surface of the pawl is withdrawn from the slot and a locked position where the surface of the pawl is extended into the slot to engage the cross-bar; and

an intermediary link having a first end engaged with the locking lever and a second end engaged with the pawl such that the intermediary link urges the pawl into the locked position when the locking lever is rotated in a first direction relative to the clamp body and the pawl is urged into the unlocked position when the locking lever is rotated in a second direction, opposite to the first direction.

7 . The surgical table extension of claim 5 , wherein the cross-bar further comprises first and second collars, each third lock being disposed between each first lock and a respective one of the first and second collars to prevent movement of the third lock in a center axis direction of the cross-bar.

8 . The surgical table extension of claim 5 , further comprising third and fourth clamps disposed on respective ends of the first and second rails for clamping the respective ends of the first and second rails to the cross-bar;

wherein each of the third and fourth clamps comprise a third lock for independently locking each of the third and fourth clamps to the cross-bar while permitting rotation of the third and fourth clamps about the cross-bar.

9 . The surgical table extension of claim 8 , wherein the third lock comprises:

a clamp body having a slot for acceptance of the cross-bar;

a locking lever rotatable relative to an outer surface of the clamp body; and

a pawl movable relative to the slot between an unlocked position where a surface of the pawl is withdrawn from the slot and a locked position where the surface of the pawl is extended into the slot to engage the cross-bar.

10 . The surgical table extension of claim 9 , wherein the third lock further comprises an intermediary link having a first end engaged with the locking lever and a second end engaged with the pawl such that the intermediary link urges the pawl into the locked position when the locking lever is rotated in a first direction relative to the clamp body and the pawl is urged into the unlocked position when the locking lever is rotated in a second direction, opposite to the first direction.

11 . The surgical table extension of claim 5 , wherein each third lock being fixed to prevent movement of the third lock in a center axis direction of the cross-bar.

12 . The surgical table extension of claim 1 , wherein the first lock comprises:

a clamp body; and

a locking lever rotatable relative to an outer surface of the clamp body.

13 . The surgical table extension of claim 12 , wherein the first lock further comprises a pawl movable relative to an outer surface of the cross-bar between an unlocked position where a surface of the pawl is withdrawn from the outer surface of the cross-bar and a locked position where the surface of the pawl is extended to engage the outer surface of the cross-bar.

14 . The surgical table extension of claim 13 , wherein the first lock further comprises an intermediary link having a first end engaged with the locking lever and a second end engaged with the pawl such that the intermediary link urges the pawl into the locked position when the locking lever is rotated in a first direction relative to the clamp body and the pawl is urged into the unlocked position when the locking lever is rotated in a second direction, opposite to the first direction.

15 . The surgical table extension of claim 1 , wherein the first lock further comprises a pawl movable relative to an outer surface of the cross-bar between an unlocked position where a surface of the pawl is withdrawn from the outer surface of the cross-bar and a locked position where the surface of the pawl is extended to engage the outer surface of the cross-bar.

16 . A surgical table for use with a surgical table, the surgical table extension comprising:

a leg comprising a base;

first and second rails extending from the leg;

a hinge disposed on the leg, the hinge is configured to permit movement of the first and second rails about at least a first axis relative to the leg;

a cross-bar connecting respective ends of the first and second rails; and

first and second clamps configured to clamp the cross-bar to the surgical table, each of the first and second clamps comprising:

an extension bar slidably disposed relative to the cross-bar for moving the first and second clamps in a direction orthogonal to an extending direction of the first and second rails to accommodate a width of the surgical table;

a first lock for independently locking the extension bar relative to the cross-bar; and

a second lock for independently locking the respective first and second clamps to the surgical table;

wherein each of the extension bars is configured to be locked relative to a respective first and second lock at any position along a length of each extension bar.

17 . The surgical table extension of claim 16 , wherein the first lock comprises:

a clamp body; and

a locking lever rotatable relative to an outer surface of the clamp body.

18 . The surgical table extension of claim 17 , wherein the first lock further comprises a pawl movable relative to an outer surface of the cross-bar between an unlocked position where a surface of the pawl is withdrawn from the outer surface of the cross-bar and a locked position where the surface of the pawl is extended to engage the outer surface of the cross-bar.

19 . The surgical table extension of claim 18 , wherein the first lock further comprises an intermediary link having a first end engaged with the locking lever and a second end engaged with the pawl such that the intermediary link urges the pawl into the locked position when the locking lever is rotated in a first direction relative to the clamp body and the pawl is urged into the unlocked position when the locking lever is rotated in a second direction, opposite to the first direction.

20 . The surgical table extension of claim 16 , wherein the first lock further comprises a pawl movable relative to an outer surface of the cross-bar between an unlocked position where a surface of the pawl is withdrawn from the outer surface of the cross-bar and a locked position where the surface of the pawl is extended to engage the outer surface of the cross-bar.

21 . A surgical table extension for use with a surgical table, the surgical table extension comprising:

a leg comprising a base;

first and second rails extending from the leg;

a hinge disposed on the leg, the hinge is configured to permit movement of the first and second rails about at least a first axis relative to the leg;

a cross-bar connecting respective ends of the first and second rails; and

first and second clamps configured to clamp the frame members to the surgical table, the first and second clamps disposed at the respective ends of the cross-bar, each of the first and second clamps comprising:

an elongated recess for accepting a surgical table rail for fixing the first and second clamps to the surgical table, each elongated recess having a first open end for accepting the surgical table rail and an opposite bottom surface, the elongated recess extending from the open end to the opposite bottom surface.

22 . The surgical table extension of claim 21 , further comprising a movable protrusion movable into and out of each of the elongated recesses to lock and unlock, respectively, the first and second clamps to the surgical table.

23 . The surgical table extension of claim 22 , wherein the movable protrusion is arranged on a side wall of the elongated recess.

24 . The surgical table extension of claim 22 , wherein the movable protrusion is actuated by a lever operatively connected to the movable protrusion.