Inflatable convective pad for surgery

1. A method of using an inflatable convective pad, comprising:

deploying the convective pad, the convective pad comprising:

first and second layers joined by a seal around a common periphery to form a pneumatic structure, at least the first layer being air permeable and including an air permeable surface, the second layer is opposite the first layer;

at least one inlet port opening into the pneumatic structure;

an elongate seal establishing a first elongate uninflatable area between the first and second layers within the common periphery, wherein the elongate seal is surrounded by the pneumatic structure, wherein the first elongate uninflatable area is at least one-half of a longitudinal length of the pneumatic structure;

a first slit located in the first elongate uninflatable area;

supporting a person on the first layer of the convective pad;

threading an arm of the person through the first slit of the convective pad; and

inflating the convective pad with warmed pressurized air.

2. The method of claim 1 , further comprising convecting warmed air through the first layer of the convective pad.

3. The method of claim 1 , wherein the first elongate uninflatable area comprises a line of weakness therein and further comprising selectively opening the line of weakness to form the first slit through the inflatable convective pad.

4. The method of claim 1 , wherein the convective pad comprises a second elongate uninflatable area between the first and second layers within the common periphery.

5. The method of claim 4 , wherein the convective pad comprises a second slit located in the second elongate uninflatable area.

6. The method of claim 1 , further comprising, positioning the convective pad, wherein a portion of the second layer of the convective pad is disposed on an operating table mattress.

7. The method of claim 1 , wherein the convective pad includes retaining flaps on the first or second layer, the method further including folding the retaining flaps over the person's arm.

8. The method of claim 1 , wherein the at least one inlet port opening has an opening.

9. The method of claim 8 , further comprising a collar of stiff material surrounding the inlet port opening, wherein the collar receives the nozzle of an air hose while the air hose delivers a stream of warm pressurized air into the pneumatic structure.

10. The method of claim 1 , wherein the convective pad comprises a head inactive area near a head end of the convective pad within the common periphery, the method further comprising: positioning a head of the person within the head inactive area.

11. The method of claim 10 , wherein, while the head of the person is within the head inactive area, one portion of the patient's arm is beneath the second layer of the pneumatic structure when threaded through, another portion of the patient's arm is supported by the first layer.

12. The method of claim 1 , wherein the first and second slits are parallel.

13. The method of claim 1 , wherein the slits are positioned to locate the slits outside of the person's arms when the person's arms are drawn in to extend along the sides of the person.

14. The method of claim 1 , wherein a portion of the patient's arm is beneath the second layer of the pneumatic structure when threaded through, and another portion of the patient's arm is supported by the first layer.

15. A method of using an inflatable convective pad, comprising:

providing the convective pad, the convective pad comprising:

first and second layers joined by a seal around a common periphery to form a pneumatic structure, at least the first layer being air permeable and including an air permeable surface, the second layer is opposite the first layer;

at least one inlet port opening into the pneumatic structure;

an elongate seal establishing a first elongate uninflatable area between the first and second layers within the common periphery, wherein the first elongate uninflatable area is at least one-half of a longitudinal length of a body portion of the convective pad;

a first slit located in the first elongate uninflatable area;

supporting a person on the first layer of the convective pad;

threading an arm of the person through the first slit of the convective pad; and

inflating the convective pad with warmed pressurized air, wherein warmed pressurized air is transported between a side of the convective pad and the elongate seal.

16. The method of claim 15 , further comprising convecting warmed air through the first layer of the convective pad.

17. The method of claim 15 , wherein the first elongate uninflatable area comprises a line of weakness therein and further comprising selectively opening the line of weakness to form the first slit through the inflatable convective pad.

18. The method of claim 15 , wherein the convective pad comprises a second elongate uninflatable area between the first and second layers within the common periphery.

19. The method of claim 18 , wherein the convective pad comprises a second slit located in the second elongate uninflatable area.

20. The method of claim 15 , further comprising, positioning the convective pad, wherein a portion of the second layer of the convective pad is disposed on an operating table mattress.

21. The method of claim 15 , wherein the convective pad includes retaining flaps on the first or second layer, the method further including folding the retaining flaps over the person's arm.

22. The method of claim 15 , wherein the at least one inlet port opening has an opening, further comprising a collar of stiff material surrounding the inlet port opening, wherein the collar receives the nozzle of an air hose while the air hose delivers a stream of warm pressurized air into the pneumatic structure.

23. The method of claim 15 , wherein the convective pad comprises a head inactive area near a head end of the convective pad within the common periphery, the method further comprising: positioning a head of the person within the head inactive area.