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Publication Number
US-8298197-B2
Publication Date
2012-10-30
Expiration Date
Abstract
A wound dressing includes a chamber (12) defining a treatment space (14) and at least one opening (20) communicating with the treatment space. In one embodiment, a plurality of channels are defined on an inner wall of the chamber. In another embodiment, a tube (31) extends through the chamber and into the treatment space and defines a plurality of openings (35) in a portion of the tube extending into the treatment space. In yet another embodiment, a tube extends through the chamber and into the treatment space and comprises a plurality of branches (37) extending to different regions of the treatment space.
Core Innovation
The invention describes a wound dressing that includes a chamber defining a treatment space and at least one opening communicating with the treatment space. The chamber is configured to provide a sealed treatment environment associated with a limb wound dressing and a skin-sealing opening. A tube is provided with a first end coupled to the chamber and communicating with the treatment space.
The chamber has an inner wall defining a plurality of channels that are in communication with the treatment space. The channels are defined by spaced-apart grooves forming a grid pattern, or by spaced-apart ridges forming a grid pattern, or by spaced-apart protrusions and spaced-apart indentations forming channels. The grid pattern is described in relation to inner-wall channel geometry, including regular or irregular grid pattern arrangements.
Embodiments include a tube extending into the treatment space such that the distal portion provides portal access to different wound regions. The tube configuration may include perforations or branches positioned to reduce needle risk and enable treatment even under a secondary dressing. Associated delivery/extraction devices include valves and a Luer fitting and a collapsible tube with a flexible tip, while maintaining treatment-environment variables for wound monitoring and fluid analysis.
Claims Coverage
The independent claims cover a wound dressing architecture with a chamber/treatment space, a tube coupled to the chamber, and an inner-wall channel grid. Across the independent claims, the main inventive structure consists of three inventive features: the chamber/treatment space with an opening, the chamber-coupled tube communicating with the treatment space, and a specific inner-wall channel grid that places channels in communication with the treatment space.
Chamber defining a treatment space with opening
A chamber defining a treatment space and at least one opening communicating with the treatment space.
Tube communicating with the treatment space
A tube having a first end coupled to the chamber, the tube communicating with the treatment space.
Inner-wall channels formed by spaced-apart grooves in a grid pattern
A plurality of channels defined on an inner wall of the chamber, the plurality of channels being in communication with the treatment space, wherein the channels are defined by a plurality of spaced-apart grooves forming a grid pattern.
Inner-wall channels formed by spaced-apart ridges in a grid pattern
A plurality of channels defined on an inner wall of the chamber by a plurality of spaced-apart ridges forming a grid pattern, the plurality of channels being in communication with the treatment space.
Inner-wall channels formed by spaced-apart protrusions and indentations directing fluids in a grid pattern
A plurality of at least one of spaced-apart protrusions and spaced-apart indentations defining a plurality of channels on an inner wall of the chamber, the plurality of channels being in communication with the treatment space and configured to direct fluids through the channels, wherein the at least one of spaced-apart protrusions and spaced-apart indentations form a grid pattern.
The independent claim set is directed to a wound dressing that combines a chamber defining a sealed treatment space with an opening, a tube communicating with that treatment space, and an inner-wall channel grid. The channel grid is structurally defined as grooves, ridges, or protrusions/indentations, and dependent features further refine grid orientation and access-related geometry.
Stated Advantages
Enables treatment even under a secondary dressing.
Reduces needle risk.
Supports wound monitoring and fluid analysis for diagnostic markers.
Maintains treatment-environment variables during delivery and extraction.
Documented Applications
Wound monitoring.
Fluid analysis for diagnostic markers.
Controlled delivery of treatment additives while maintaining treatment-environment variables.
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