Casted foot medical boot with dual pivot points

  • US 5,088,481 A
  • Filed: 10/10/1990
  • Issued: 02/18/1992
  • Est. Priority Date: 10/10/1990
  • Status: Expired due to Term
First Claim
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1. A medical boot capable of conforming to a form fitting cast, enveloping a foot and ankle of a patient, said boot comprising:

  • a sole assembly,an upper assembly secured to said sole assembly and adapted to surround the heel, sides and dorsal portions of the patient'"'"'s foot while leaving the toe region open,said upper assembly including a pair of side walls of flexible material which mold comfortably to the contours of either the cast or the foot and ankle of the patient, one of said upper assembly side walls including a flap which underlies the other side wall and is adapted to cover the dorsal region of the foot, said sole assembly comprising an outer sole extending generally the length of the shoe, from heel to toe, having an outer sole bottom surface which tapers from the toe and heel oppositely in directions away from the upper, wherein said outer sole bottom surface includes a flat horizontal central portion and a flat rearwardly, upwardly oblique portion forming therebetween a first pivot point for said medical boot, at a position, which is in vertical alignment with the front of the ankle of the patient, and wherein, said bottom of said outer sole includes a forwardly and upwardly oblique, flat portion from the end of the flat horizontal central portion remote from the heel, to the toe defining therebetween a second pivot point in vertical alignment with the metatarsal-phalangeal joint is located on the foot of the patient borne by said shoe, and an outer sole top surface which is flat and which tapers forwardly and downwardly over the flat central portion and said upwardly oblique flat portion of the sole bottom surface from the central portion to the toe, whereby;

    the combination of said two pivot points ensures that there is no stress on the cast or on the lower leg and foot of the patient during the gait cycle upon ambulation of the patient.

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