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US3741203A Expired / Lapsed US ⏱️ 0.0 years remaining

Protective covering

Assignee: DRYSPELL IND Inc
•
Filing: 1971-12-22
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Granted: 1973-06-26
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Expires: 1991-12-22
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Abstract

Abstract A protective covering is provided for encasing an injured body limb and preventing water or other harmful contaminants from contacting a wound, its bandaging, or a cast. The covering includes a sheet of synthetic limp flexible plastic forming a bag having an open mouth. The mouth is sealed to the skin of the injured limb at a point spaced from the wound and remote from the free end of the limb by a spongelike elastomeric foam layer which is attached to the interior of the bag near the mouth. Attached adjacent the mouth of the bag is a flexible tape which is wrapped about the exterior of the bag to insure a substantially watertight and air-tight seal between the bag mouth and the skin. Optionally provided is a valve between the interior and exterior surfaces of the bag enabling the bag to be inflated, thus minimizing contact with the wound. The bag may be inflated with oxygen or any gas prescribed to facilitate healing. To adjustably accomodate for various lengths of a limb with either a bandage and/or a cast, an adhesive strip is affixed to the bag adjacent the closed end. The closed end may be folded back, shortening the overall length of the bag, until the desired length is attained whereupon the adhesive strip is secured to a side of the bag to maintain the closed end in its folded over position.

Inventors

  • 👤 P Liman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 23:00
CPC Classifications
A; A61; A61F; A61F15/00; A61F15/004

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 224 words
A protective covering for enclosing injured portions of a limb, said protective covering comprising: a flexible limp plastic liquid impermeable sheet material, said sheet material having closed sides and an open mouth at one end thereof, an annular resilient foam band secured to the interior of said covering adjacent the open mouth, and means adjacent the open mouth for compressing the open mouth and said annular foam band against the skin of the injured limb to thus seal said open mouth against said limb, precluding the entrance of water or other contaminants to the interior of the protective covering between the open mouth and said limb whereby a patient with an injured or a broken limb may readily bathe the remaining portions of his body without the danger of contaminating the injury, said means adjacent the open mouth for compressing the open mouth and the foam band including a flexible tape, one end of said tape being secured to the protective covering adjacent the open mouth, the other end of said tape being free, said tape being wound in ascending overlapping convolutions about the protective covering adjacent said open mouth, said tape tightening said open mouth of said protective covering against the limb and compressing the annular foam band against the limb to insure a water-tight seal between the limb and the open mouth.
Claim 2
Dependent Claim 224 words
A protective covering for enclosing injured portions of a limb, said protective covering comprising: a flexible limp plastic liquid impermeable sheet material, said sheet material having closed sides and an open mouth at one end thereof, an annular resilient foam band secured to the interior of said covering adjacent the open mouth, and means adjacent the open mouth for compressing the open mouth and said annular foam band against the skin of the injured limb to thus seal said open mouth against said limb, precluding the entrance of water or other contaminants to the interior of the protective covering between the open mouth and said limb whereby a patient with an injured or a broken limb may readily bathe the remaining portions of his body without the danger of contaminating the injury, said means adjacent the open mouth for compressing the open mouth and the foam band including a flexible tape, one end of said tape being secured to the protective covering adjacent the open mouth, the other end of said tape being free, said tape being wound in ascending overlapping convolutions about the protective covering adjacent said open mouth, said tape tightening said open mouth of said protective covering against the limb and compressing the annular foam band against the limb to insure a water-tight seal between the limb and the open mouth.
Claim 3
Dependent Claim 278 words
A protective covering for enclosing injured portions of a limb, said protective covering comprising: a flexible limp plastic fluid impermeable sheet material, said sheet material having closed sides and an open mouth at one end thereof, an annular resilient foam band secured to the interior of said covering adjacent the open mouth, means adjacent the open mouth for compressing the open mouth and said annular foam band against the skin of the injured limb to thus seal said open mouth against said limb, precluding the entrance of water or other contaminants to the interior of the protective covering between the open mouth and said limb whereby a patient with an injured or a broken limb may readily bathe the remaining portions of his body without the danger of contaminating the injury, and means forming an elongate slot in the protective covering, said slot running from the open mouth to enlarge the opening at said open mouth for facilitating the insertion of an injured limb into the protective covering, a slide fastener secured to the protective covering along the edges of said slot, said slide fastener selectively opening and closing said slot, a backing web of water impermeable sheet material secured to the interior of said protective covering adjacent and behind said slot, said web having an upper edge, said upper edge being secured to said covering at its ends on opposed sides of said slot, said upper edge being of greater dimension than the linear distance between the points connecting said upper edge to said protective covering when said fastener is closed, and said web being secured to said covering at the sides and bottom of the web.
Claim 4
Dependent Claim 278 words
A protective covering for enclosing injured portions of a limb, said protective covering comprising: a flexible limp plastic fluid impermeable sheet material, said sheet material having closed sides and an open mouth at one end thereof, an annular resilient foam band secured to the interior of said covering adjacent the open mouth, means adjacent the open mouth for compressing the open mouth and said annular foam band against the skin of the injured limb to thus seal said open mouth against said limb, precluding the entrance of water or other contaminants to the interior of the protective covering between the open mouth and said limb whereby a patient with an injured or a broken limb may readily bathe the remaining portions of his body without the danger of contaminating the injury, and means forming an elongate slot in the protective covering, said slot running from the open mouth to enlarge the opening at said open mouth for facilitating the insertion of an injured limb into the protective covering, a slide fastener secured to the protective covering along the edges of said slot, said slide fastener selectively opening and closing said slot, a backing web of water impermeable sheet material secured to the interior of said protective covering adjacent and behind said slot, said web having an upper edge, said upper edge being secured to said covering at its ends on opposed sides of said slot, said upper edge being of greater dimension than the linear distance between the points connecting said upper edge to said protective covering when said fastener is closed, and said web being secured to said covering at the sides and bottom of the web.
Claim 5
Dependent Claim 92 words
A protective covering constructed in accordance with claim 2 wherein the compressing Means includes an elongate flexible tape, said tape having one end secured to the protective covering adjacent the open mouth of said covering, said tape having a free end, said tape being wound in overlapping ascending convolutions about the protective covering adjacent said open mouth, said tape tightening the open mouth of the protective covering against the limb and compressing the annular foam band against the limb to insure a water tight seal between the limb and the open end.
Claim 6
Dependent Claim 218 words
A protective covering for enclosing injured portions of a limb, said protective covering comprising: a flexible limp plastic liquid impermeable sheet material, said sheet material having closed sides and an open mouth at one end thereof, an annular resilient foam band secured to the interior of said covering adjacent the open mouth, means adjacent the open mouth for compressing the open mouth and said annular foam band against the skin of the injured limb to thus seal said open mouth against said limb, precluding the entrance of water or other contaminants to the interior of the protective covering between the open mouth and said limb whereby a patient with an injured or a broken limb may readily bathe the remaining portions of his body without the danger of contaminating the injury, the resilient foam band presenting a gas tight seal precluding the escape of gas through the open mouth, means forming an opening in the protective covering for the inflation of the covering, and a valve mounted to the protective covering, said valve being positioned in registry with the opening, said valve being an inflow check valve including means precluding the escape of gas from the interior of said protective covering through the opening while permitting the introduction of pressurized gas into said protective covering through the opening.
Claim 7
Dependent Claim 218 words
A protective covering for enclosing injured portions of a limb, said protective covering comprising: a flexible limp plastic liquid impermeable sheet material, said sheet material having closed sides and an open mouth at one end thereof, an annular resilient foam band secured to the interior of said covering adjacent the open mouth, means adjacent the open mouth for compressing the open mouth and said annular foam band against the skin of the injured limb to thus seal said open mouth against said limb, precluding the entrance of water or other contaminants to the interior of the protective covering between the open mouth and said limb whereby a patient with an injured or a broken limb may readily bathe the remaining portions of his body without the danger of contaminating the injury, the resilient foam band presenting a gas tight seal precluding the escape of gas through the open mouth, means forming an opening in the protective covering for the inflation of the covering, and a valve mounted to the protective covering, said valve being positioned in registry with the opening, said valve being an inflow check valve including means precluding the escape of gas from the interior of said protective covering through the opening while permitting the introduction of pressurized gas into said protective covering through the opening.
Claim 8
Dependent Claim 24 words
A protective covering constructed in accordance with claim 4 wherein a pressurized atmosphere including oxygen, is introduced between the limb and the protective covering.
Claim 9
Dependent Claim 219 words
A protective covering for enclosing an injured portion of a limb, said protective covering comprising: a flexible limp plastic liquid impermeable sheet material, said sheet material having closed sides and an open mouth at one end thereof, a seal secured to the interior of said covering adjacent the open mouth and means for selectively enlarging the opening at said open mouth and pressing the seal against the limb, said means including an elongate slot in the protective covering, said slot running from the open mouth to permit enlargement of the opening at said mouth so as to facilitate the insertion of an injured limb, a fastener secured to the protective covering adjacent the edges of said slot, said fastener selectively opening and closing said slot, a backing web of water impermeable sheet material secured to the interior of said protective covering adjacent and behind said slot, said web having an upper edge, said upper edge being secured to said covering at its ends on opposed sides of said slot adjacent the edges of the slot, said upper edge being of greater dimension than the linear distance between the points connecting said upper edge to said protective covering when said fastener is closed, and said web being hermetically sealed to said covering at the sides and bottom of the web.
Claim 10
Dependent Claim 219 words
A protective covering for enclosing an injured portion of a limb, said protective covering comprising: a flexible limp plastic liquid impermeable sheet material, said sheet material having closed sides and an open mouth at one end thereof, a seal secured to the interior of said covering adjacent the open mouth and means for selectively enlarging the opening at said open mouth and pressing the seal against the limb, said means including an elongate slot in the protective covering, said slot running from the open mouth to permit enlargement of the opening at said mouth so as to facilitate the insertion of an injured limb, a fastener secured to the protective covering adjacent the edges of said slot, said fastener selectively opening and closing said slot, a backing web of water impermeable sheet material secured to the interior of said protective covering adjacent and behind said slot, said web having an upper edge, said upper edge being secured to said covering at its ends on opposed sides of said slot adjacent the edges of the slot, said upper edge being of greater dimension than the linear distance between the points connecting said upper edge to said protective covering when said fastener is closed, and said web being hermetically sealed to said covering at the sides and bottom of the web.
Claim 11
Dependent Claim 50 words
A protective covering for enclosing an injured portion of a limb constructed in accordance with claim 6, wherein the seal is constructed of an annular resilient foam band, a portion of said band being secured to the internal surface of the backing web adjacent the upper edge of said web.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-06-25 1976-12-25 1977-06-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-25 1980-12-25 1981-06-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-25 1984-12-25 1985-06-26 $7700.00 Window Closed / Lapsed

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