Porous wound dressing for use in negative-pressure therapy
Inventors
Assignees
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Publication Number
US-11291588-B2
Publication Date
2022-04-05
Expiration Date
Abstract
A porous wound dressing for use in negative-pressure therapy is proposed. The wound dressing has an outer edge which defines a substantially oval or rectangular outer shape of the wound dressing with a major axis and a minor axis. The wound dressing has one or more incisions or perforations which together form one or more arc-shaped lines and serve for cutting the wound dressing to size in order to adapt the wound dressing to the shape and/or size of a wound. The one or more arc-shaped lines each extend asymmetrically with respect to the major axis and/or to the minor axis and each enclose, together with a portion of the outer edge, a segment of the wound dressing that is designed for separation from the wound dressing.
Core Innovation
The invention relates to a porous wound dressing for use in negative-pressure therapy of wounds, including wounds of an abdominal region. The wound dressing has an outer edge that defines an oval outer shape with a major axis and a minor axis, and one or more incisions or perforations form a plurality of arc-shaped lines for cutting the wound dressing to size to adapt it to the size of a wound.
Each arc-shaped line extends asymmetrically with respect to the major axis and/or to the minor axis, and encloses, together with a portion of the outer edge, a segment designed for separation and subsequent use in negative-pressure therapy. The segments are each arranged asymmetrically with respect to the major axis and/or to the minor axis and have an oval outer shape corresponding to the oval outer shape of the wound dressing, so that an observer is able to readily recognize the oval outer shape of the wound dressing in the oval outer shape of the segment.
The arc-shaped lines are arranged at regular intervals and extend at least approximately parallel to one another and to a further portion of the outer edge, such that a mussel-shaped division into the segments is obtained. The disclosure further describes a wound cover kit with a wound-side contact sheet and a covering which covers and seals off the wound area from the outside, optionally with additional sealing materials and a suction unit for negative pressure.
Claims Coverage
The document includes two independent claims directed to a porous wound dressing for negative-pressure therapy and to a wound cover kit for negative-pressure therapy. The main inventive features are the oval outer shape defined by major and minor axes, predefined arc-shaped incision or perforation lines, asymmetrically arranged enclosed segments with corresponding oval outer shapes, and regular, approximately parallel arc-line arrangement to obtain a mussel-shaped division.
Oval outer shape defined by major and minor axes
The porous wound dressing has an outer edge which defines an oval outer shape of the wound dressing with a major axis and a minor axis.
Arc-shaped incision or perforation lines arranged for cut-to-size adaptation
One or more incisions or perforations together form a plurality of arc-shaped lines and serve for cutting the wound dressing to size in order to adapt the wound dressing to the size of a wound.
Asymmetrical arc-shaped lines enclosing separable oval segments
Each arc-shaped line extends asymmetrically with respect to the major axis and/or to the minor axis and encloses, together with a portion of the outer edge, a segment of the wound dressing that is designed for separation from the wound dressing and for subsequent use in negative-pressure therapy of wounds.
Segments arranged asymmetrically with corresponding oval outer shape for recognizability
The segments, each enclosed by one of the arc-shaped lines and the respective portion of the outer edge, are each arranged asymmetrically with respect to the major axis and/or to the minor axis and have an oval outer shape which corresponds to the oval outer shape of the wound dressing, such that an observer is able to readily recognize the oval outer shape of the wound dressing in the oval outer shape of the segment.
Regular intervals and approximately parallel arc lines for mussel-shaped division
The arc-shaped lines are arranged at regular intervals from one another and extend at least approximately parallel to one another and to a further portion of the outer edge of the wound dressing such that a mussel-shaped division of the wound dressing into the segments is obtained.
Wound-side contact sheet, sealing covering, and porous dressing
A wound cover kit includes a wound-side contact sheet designed to be placed directly on a wound, a covering which serves to cover and seal off the wound area from the outside, and a porous wound dressing having the oval outer shape, arc-shaped incision or perforation lines, asymmetrical arc lines enclosing separable segments, recognizability of oval segment shape, and regular approximately parallel arc lines to obtain a mussel-shaped division.
Overall, the claims focus on a porous wound dressing in which predefined, asymmetrically extending arc-shaped incisions or perforations create segments that are separable for negative-pressure therapy while preserving a recognizable oval outer shape. The same segment-creating geometry is incorporated into a wound cover kit that further includes a wound-side contact sheet and a covering for covering and sealing off the wound area.
Stated Advantages
An observer is able to readily recognize the oval outer shape of the wound dressing in the oval outer shape of the segment.
The predefined segments enable cutting to many wound sizes without further cutting and reduce fraying and loose particles versus scissors-cut edges.
Documented Applications
Use in negative-pressure therapy of wounds, including wounds of an abdominal region.
Use as a wound cover kit for negative-pressure therapy, including a wound-side contact sheet, covering for sealing off the wound area, and a porous wound dressing with the arc-shaped incision or perforation layout.
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