in accordance with the foregoing summary of the invention , the following presents the preferred embodiments of the present invention , which are considered to be the best mode thereof . fig1 is an elevation view of a lumbar reinforcement portion in accordance with one embodiment of the present invention , showing the lumbar reinforcement portion in an open , extended configuration . fig1 shows base outer base portion 1 and relatively flexible inner portion 2 , the inner portion moveably fixed to the outer base portion 1 so as to be able to be bowed away from the outer base portion as shown in this view . fig1 also shows inflatable air bladder 3 positioned between the inner portion 2 and the outer base portion 1 , and having an air conduit 4 adapted to reverseably inflate and deflate the air bladder 3 . fig1 also shows slots 5 and 6 through which pass bolts or screws 7 and 8 respectively with corresponding plastic washers 9 and 10 , to slidingly hold the outer base portion 1 and relatively flexible inner portion 2 in position . as bladder 3 inflates to expand along direction line a , the relatively flexible inner portion 2 bows so as to be drawn along direction line b . fig2 is an elevation view of the opposite side of a lumbar reinforcement portion shown in fig1 , in accordance with one embodiment of the present invention , again showing the lumbar reinforcement portion in an open , extended configuration with the same reference numerals used to indicate the parts thereof . fig3 is a front perspective view of a lumbar reinforcement portion in accordance with one embodiment of the present invention , showing the lumbar reinforcement portion in an open , extended configuration , with the same reference numerals used to indicate the parts thereof . fig4 is a side perspective view of a lumbar reinforcement portion in accordance with one embodiment of the present invention , showing the lumbar reinforcement portion in a closed configuration with the air bladder removed , with the same reference numerals used to indicate the parts thereof . if desired , the bladder 3 may be provided with a hook and loop pad 11 to hold it in place between the outer base portion 1 and the relatively flexible inner portion 2 , such as by providing a corresponding hook and loop pad ( not seen in the figure ) on the base portion 1 , to allow the bladder 3 to be inflated while the relatively flexible inner portion 2 may move freely with respect to the bladder 3 . fig5 is a side perspective view of a lumbar reinforcement portion in accordance with one embodiment of the present invention , showing the lumbar reinforcement portion in a closed configuration with the air bladder inserted , with the same reference numerals used to indicate the parts thereof . fig6 is a bottom plan view of a lumbar reinforcement portion in accordance with one embodiment of the present invention , showing the lumbar reinforcement portion in a closed configuration with the air bladder inserted , and with the same reference numerals used to indicate the parts thereof . this view also shows additional plastic washers 12 and 13 that may be used to secure bolts 7 and 8 to the outer base portion 1 . fig7 is a side perspective view of an air bladder 3 , as used in conjunction with a lumbar reinforcement portion in accordance with one embodiment of the present invention , showing the air bladder deflated . fig8 is a side perspective view of an air bladder 3 with hook and loop fastener 11 and hand pump bulb 14 that may be used in conjunction with a lumbar reinforcement portion in accordance with one embodiment of the present invention , showing the air bladder inflated . the conduit 4 typically is long enough to reach around the torso of the wearer to provide a convenient pumping of the bladder 3 while the brace is being worn . the hand pump bulb 14 may be removable with a valve at the end of the conduit , so that the hand pump bulb 14 may be removed from the brace after adjustment . fig9 is a representative view of a lumbar reinforcement portion 15 and a lumbal - sacral orthosis 16 having a pocket 17 into which a lumbar reinforcement portion may be inserted in accordance with one embodiment of the present invention . fig9 further shows lumbal - sacral orthosis 16 having a frontal portion 18 , strap 19 , and a pocket 17 adapted to receive lumbar reinforcement portion 15 . fig1 is representative view of a lumbal - sacral orthosis having a lumbar reinforcement portion in accordance with one embodiment of the present invention . fig1 shows lumbal - sacral orthosis 16 having a lumbar reinforcement portion 15 inserted into pocket 17 of lumbal - sacral orthosis 16 . fig1 further shows a lumbal - sacral orthosis having frontal portion 18 and strap 19 . the relatively rigid base portion may be made of a rigid plastic such as abs plastic , typically of a thickness greater than ⅛ inch . the relatively flexible inner portion is typically made of a plastic more flexible than the relatively rigid base portion , such as ldpe and is preferably of a thickness less than or equal to that of the relatively rigid base portion , typically about 1 / 16 inch . some of the advantages of the present invention are that the brace provides several of the advantages of prior art braces , while also offering infinite customized adjustment of the brace within a range of movement of the device as provided by the dimensions of the outer base portion 1 and the relatively flexible inner portion 2 . the lumbar reinforcement of the present invention has the ability to provide lumbar support that is adjustable in terms of snugness and the degree of support to the lumbar portion of an orthotic brace . while the invention may be rendered in embodiments in many different forms , there have been shown in the drawings and described herein , in detail , the preferred embodiments of the present invention . it should be understood , however , that the present disclosure is to be considered an exemplification of the principles of the invention and is not intended to limit the spirit or scope of the invention and / or claims of the embodiments illustrated .
the present invention includes an orthotic brace which offers advantages in being able to be adjusted to fit the small of the back of a specific wearer , and may attain an infinite number of positions within its range of motion , while providing effective reinforced lumbar support .