A convective underbody blanket has a head portion and a body portion. Provided at the head portion is a non-inflatable head area surrounded by a channel that has arranged thereat at least one row of air apertures that are oriented toward the non-inflatable head area when the channel is inflated. At the body portion there is provided a non-inflatable body area. Along each longitudinal side of the body area there is at least one longitudinal channel. Each of the longitudinal channels is in fluid communication with the channel that surrounds the non-inflatable head area. The longitudinal channels that sandwich the non-inflatable body area extend substantially along the length of the non-inflatable body area and are in fluid communication with each other by way of a cross channel formed at the foot end of the blanket. The configuration of the blanket allows air input to the blanket to be circulated through the various channels, so that the heated air output from the different rows of apertures formed at the various channels has substantially the same temperature. The different rows of apertures may be provided at different areas along the blanket.一身體下的對流毯具有一頭部部分及一身體部分。在該頭部部分處提供一不可膨脹頭部區域,其被圍繞有一在此處排列至少一列空氣孔隙之通道,該至少一列空氣孔隙在該通道膨脹時,被定向朝向該不可膨脹頭部區域。在該身體部分提供一不可膨脹身體區域。沿該身體區域之各縱向側存在至少一個縱向通道。該等縱向通道中之每一者與該圍繞該不可膨脹頭部區域之通道流體連通。該等夾住該不可膨脹身體區域之縱向通道實質上沿該不可膨脹身體區域之長度延伸且經由一在該毯之腳部端形成之橫向通道互相流體連通。該毯之組態允許輸入至該毯中之空氣循環通過各種通道,使得自該等在各種通道處形成之不同列孔隙輸出之該熱空氣具有實質上相同之溫度。可沿該毯在不同區域提供該等不同列孔隙。2...身體下對流毯4...頭部端6...腳部端8...封條8a...最低封條8...封條8a...封條8a1...封條8b1...封條8b1...封條端8b2...封條8b2...封條端8"...封條10...頭部部分12...身體部分14...不可膨脹頭部子部分或區域16a...側翼16b...側翼18...通道18...通道20...開口20...開口22...孔隙22...孔隙22"...孔隙24...孔隙24...孔隙26...身體區域27...流體吸收墊28a...縱向通道28b...縱向通道30a...縱向通道30b...縱向通道32a...孔隙32b...孔隙34a...孔隙34b...孔隙36...橫向通道38a...入口端口38b...入口端口38c...入口端口