Absorbent wound dressing for wrapping around jointed limbs
Inventors
Assignees
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Publication Number
US-11452642-B2
Publication Date
2022-09-27
Expiration Date
Abstract
A non-adhesive absorbent wound dressing (10) is suitable for application about a jointed limb. The wound dressing (10) has a first portion (20) adapted to conform to and wrap around an upper part of the limb, a second portion (30) adapted to conform to and wrap around a lower part of the limb, and a hinge portion (40) between said first portion (20) and said second portion (30), said hinge portion (40) in use lying adjacent to the joint of the limb. The wound dressing (10) also comprises a porous wound contact sheet (80) and a substantially liquid-impermeable backing sheet (90), the wound contact sheet (80) and the backing sheet (90) being bounded (50) together at their periphery and along lines that define a plurality of pockets (60) in both the first portion (20) and the second portion (30), the pockets (60) containing absorbent material (70).
Core Innovation
The invention relates to a non-adhesive absorbent wound dressing for application about a jointed limb, having a first portion adapted to conform to and wrap around an upper part of the limb and a second portion adapted to conform to and wrap around a lower part of the limb. The first portion and the second portion are connected by a hinge portion positioned adjacent the joint, where the hinge portion in use lies adjacent to the joint of the limb.
The dressing comprises a porous wound contact sheet and a substantially liquid-impermeable backing sheet. The wound contact sheet and the backing sheet are bonded together at their periphery and along lines that define a plurality of pockets in both the first portion and the second portion, with the pockets located across substantially the entire surface of the wound contact sheet.
The pockets contain a superabsorbent material, and the hinge portion comprises a bonded area extending across the dressing from one point on a perimeter of the dressing to another. The hinge portion has a lesser width than the first portion and the second portion, enabling the dressing to be configured for a joint adjacent region while maintaining the bonded pocket structure across essentially the entire wound contact surface.
Claims Coverage
The document includes one independent claim. The independent claim contains four inventive features, including the jointed-limb hinge arrangement, the porous wound contact sheet with substantially liquid-impermeable backing, the periphery and line bonding that defines pockets across substantially the entire wound-contact surface, and the superabsorbent material within the pockets, together with a hinge bonded area that is of lesser width than the limb portions.
Jointed-limb dressing with adjacent hinge
A non-adhesive absorbent wound dressing for application about a jointed limb, having a first portion for an upper part, a second portion for a lower part, and a hinge portion between the first and second portions, where the hinge portion in use lies adjacent to the joint of the limb.
Periphery and line bonding forming pockets across wound-contact surface
A porous wound contact sheet and a substantially liquid-impermeable backing sheet bonded together at their periphery and along lines that define a plurality of pockets in both the first portion and the second portion, the pockets being located across substantially the entire surface of the wound contact sheet.
Superabsorbent material in plurality of pockets
The pockets in both the first portion and the second portion contain a superabsorbent material.
Hinge bonded area spanning the dressing with reduced hinge width
The hinge portion between the first and second portions comprises a bonded area extending across the dressing from one point on a perimeter of the dressing to another, and the hinge portion is of lesser width than the first portion and the second portion.
Across the independent claim, the inventive concept is a jointed-limb non-adhesive absorbent wound dressing with an adjacent hinge, where porous and substantially liquid-impermeable sheets are bonded to define multiple pockets across substantially the entire wound-contact surface and those pockets contain superabsorbent material, together with a hinge bonded area that spans the dressing but is narrower than the upper and lower portions.
Stated Advantages
Reduced dressing change frequency.
Containment of exudate.
Reduced maceration and ulcer expansion.
Reduced pain.
Documented Applications
Clinical use narrative involving a wound dressing on a jointed limb with reduced dressing change frequency, reduced maceration and ulcer expansion, and reduced pain.
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