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Pressure sock

  • US 5,403,265 A
  • Filed: 11/03/1993
  • Issued: 04/04/1995
  • Est. Priority Date: 11/03/1993
  • Status: Expired due to Term
First Claim
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1. A pressure sock for the ambulatory treatment of venous ulcers about the ankle and lower portion of the leg of a patient, said sock having a foot-receiving part and a contiguous leg-receiving part adapted to extend along at least the lower portion of the leg, said sock having a plastic tubular lamina provided with a network comprising a multiplicity of dome-like spaced apart chambers interconnected by relatively narrow passages, a fluid inlet to said network for the introduction of fluid under pressure to inflate said chambers, a releasable valve for closing said network to retain pressure therein, an inner lining for said lamina of a relatively soft, non-allergenic material, an outer jacket for said lamina of a relatively soft, non-allergenic material, said outer jacket being non-distensible so that with the sock applied to the foot and lower portion of the leg of a patient, inflation of the chambers results in pressurization of the foot and lower portion of the leg because the outer jacket does not distend, said lamina, lining and jacket extending throughout the full extent of said foot-receiving part and said leg-receiving part and being sufficiently flexible to permit a patient to walk about with the sock applied to the foot and the lower portion of the leg and the chambers inflated.

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