referring now to the exemplary embodiment shown in fig1 - 5 , a pad system 100 comprises a head - end assembly 115 , a torso assembly 125 , a leg assembly 135 , and a foot - end assembly 145 . head - end assembly 115 further comprises a pair of end members 112 , a pad 114 , and a cover 110 . foot - end assembly 145 similarly comprises a pair of end members 142 , a pad 144 , and a cover 140 . torso assembly 125 comprises a pair of covers 120 , 160 that are coupled by a base sheet 180 comprising a plurality of openings 182 . in certain exemplary embodiments , a cover 120 encloses an upper pad 124 and a reinforcing member 122 in the portion of cover 120 that is proximal to head assembly 115 . similarly , cover 160 encloses an upper pad 164 and a reinforcing member 162 in the portion of cover 160 that is proximal to head assembly 115 . cover 120 also encloses a pad 128 and a reinforcing member 126 in the portion of cover 120 that is proximal to leg assembly 135 . similarly , cover 160 encloses a pad 168 and a reinforcing member 166 in the portion of cover 160 that is proximal to leg assembly 135 . cover 130 of leg assembly 135 encloses a pad 134 and a reinforcing member 132 , while cover 150 of leg assembly 135 encloses a pad 154 and a reinforcing member 152 . cover 140 of foot assembly 145 encloses a pair of end members 142 and a pad 144 , which are equivalent to end members 112 and pad 114 , respectively . pads 154 , 164 , and 168 are equivalent to pads 134 , 124 and 128 respectively . similarly , reinforcing members 152 , 162 , and 166 are equivalent to reinforcing members 132 , 122 and 126 . in certain exemplary embodiments , each of the pads comprised in pad system 100 is made from an antimicrobial foam and reinforcing members are made from a rigid plastic . in certain exemplary embodiments , covers 110 , 120 , 130 , 140 , 150 , and 160 are comprised of flame resistant , polyester reinforced , anti - bacterial vinyl fabric ( such as a material sold under the trade name staph - check ). in certain exemplary embodiments , covers 110 , 120 , 130 , 140 , 150 , and 160 may also comprise a coating of 0 . 030 inch polypropylene . referring now to the exemplary embodiment shown in fig6 , a bed 200 comprises a left side upper side rail 205 , a left side lower side rail 210 , a right side upper side rail 215 and a right side lower side rail 220 . bed 200 also comprises a head board 225 and a foot board 230 at each end of a frame 235 that supports a mattress 237 . rail supports 240 extend between each rail 205 , 210 , 215 , 220 and frame 235 . as noted in fda guidelines “ hospital bed system dimensional and assessment guidance to reduce entrapment — guidance for industry and fda staff ”, a bed such as bed 200 comprises several potential entrapment zones in which a person supported by bed 200 could potentially become entrapped . a zone 1 exists within each of rails 205 , 210 , 215 and 220 , while a zone 2 exists under rails 205 , 210 , 215 , 220 ( and between rail supports 240 ). a zone 3 exists between rails 205 , 210 , 215 , 220 and mattress 237 . a zone 4 exists at each end of rail 205 , 210 , 215 , 220 , while a zone 5 exists between rails 205 and 210 , as well as between rails 215 and 220 . a zone 6 exists between the ends of rails 205 , 210 , 215 , 220 and the ends of head board 225 and foot board 230 . a zone 7 exists between mattress 237 and both head board 225 and foot board 230 . in certain exemplary embodiments , pad system 100 is configured to be fitted to bed 200 in a manner that reduces the likelihood that a person could be entrapped in one of the seven zones identified by the fda . specifically , pad system 100 is configured to place pads in the zones and restrict access to the area or zone identified by the fda as a potential location of entrapment . for example , pads 124 , 128 and 134 are configured to be placed in zones 1 - 6 on the right side of bed 200 , while pads 164 , 168 and 154 are located in zones 1 - 6 on the left side of bed 200 . in addition , pads 114 and 144 are configured to be placed in zone 7 between mattress 237 and head board 225 and foot board 230 . as shown in the exemplary embodiment of fig4 , pads 124 , 128 , 164 and 168 are configured so that bed 200 can be articulated to raise the portion of bed 200 proximal to head board 225 . this allows bed 200 to be positioned as desired with minimal interference from pad system 100 . in addition , covers 120 , 160 , 130 , and 150 are configured to allow articulation of bed 200 . for example , covers 120 and 160 may provide extra material with integral elastic between the pads 124 and 128 as well as pads 164 and 168 . this allows covers 120 and 160 to expand or contract as needed depending on the articulation of bed 200 . similarly , covers 130 and 150 may comprise extra material with integral elastic proximal to the portion that is coupled to covers 120 and 160 , thereby allowing covers 130 and 150 to expand or contract as needed . referring now to the exemplary embodiment in fig1 , 3 and 4 , a series of coupling mechanisms are shown to couple covers 110 , 120 , 130 , 140 , 150 and 160 . for example , coupling mechanisms 121 and 191 are used to couple covers 120 and 160 , respectively , to cover 110 . coupling mechanisms 123 and 193 are used to couple cover 120 to cover 130 and coupling mechanisms 195 and 196 ( not visible in fig4 ) are used to couple cover 160 to cover 150 . it is understood that covers 120 and 160 are generally equivalent ( as are covers 130 and 150 ), and that not all coupling mechanisms are visible in the views shown . coupling mechanisms 127 and 197 are used to couple covers 130 and 150 , respectively , to cover 140 . in certain exemplary embodiments , the coupling mechanisms can be buckle arrangements . in other exemplary embodiments , the coupling mechanisms can be snap mechanisms or a hook and loop arrangements . in certain exemplary embodiments , coupling mechanisms 121 - 128 allow covers 110 , 120 , 130 , 140 , 150 and 160 to be de - coupled from each other if needed . this allows a cover ( and the associated pads and reinforcing members ) to be lowered to provide a caregiver better access to a patient . such access can be needed , for example , when performing functions such as cardiopulmonary resuscitation ( cpr ) or other critical care functions . in certain exemplary embodiments , pad system 100 is configured to fit between mattress 237 and side rails 205 , 210 , 215 , 220 to allow any of side rails 205 , 210 , 215 , 220 to be lowered while pad system 100 is in place . the ability to lower or articulate the side rails with pad system 100 in place can further provide the caregiver with access to the patient . the ability to lower covers 110 , 120 , 130 , 140 , 150 and 160 while pad system 100 is in place also allows a person to more easily enter or exit bed 200 when necessary . referring now to the exemplary embodiment shown in fig2 and 4 , head - end assembly 115 and foot - end assembly 145 comprise a recessed area 116 and 146 , respectively . recessed areas 116 and 146 also provide a caregiver access to a patient being supported by bed 200 . referring now to the exemplary embodiment of fig1 - 5 , a base sheet 170 extends between covers 130 and 150 , while a base sheet 180 extends between covers 120 and 160 . a seam 139 couples base sheet 170 to cover 130 , while a seam 159 couples base sheet 170 to cover 150 . seam 139 allows cover 130 to pivot downward so that cover 130 can be lowered , while seam 159 allows cover 150 to pivot downward so that cover 150 can be lowered . the flexible nature of seams 139 and 159 allows covers 130 and 150 to be lowered while pad system 100 is installed on bed 200 . similarly , a seam 129 couples base sheet 180 to cover 120 , while a seam 169 couples base sheet 180 to cover 160 . seams 129 and 169 allow covers 120 and 160 , respectively , to pivot downward so that they can be lowered while pad system 100 is in place on bed 200 . cover 140 comprises a base sheet 175 extending between end members 142 , while cover 110 comprises a base sheet 185 extending between end members 112 . in certain exemplary embodiments , base sheets 170 , 175 , 180 and 185 comprise a series of apertures 171 , 176 , 181 and 186 , respectively , which allow various connections ( for example , air cushion connections ) to pass through the base sheets .
a system and method for occluding potential entrapment zones in a bed . the system includes a head - end assembly with a head - end cover enclosing a head - end pad , and a torso assembly with a pair of covers each enclosing a pair of pads . the system also includes a leg assembly with a cover enclosing pads and a foot - end assembly with covers enclosing pads . the system further includes multiple sets of coupling members that couple the covers together .