Johnson & Johnson Medical Gmbh

Johnson & Johnson Products, Inc.

Chicopee

John Dyer

John W Kennette

Grace Mathews

Matthew M Major

Thomas Denny

Alton H Bassett

Stephen Papp, Jr

Stanley D Hall

David E Butterworth

A debridement sponge made from a nonwoven fabric comprising, in a preferred form, yarn-like strands of bleached cotton fibers. In the preferred form, the strands are interconnected at multiple junctures to form fewer than 31 generally rectangular apertures per cm.sup.2. Moreover, each aperture has an area of 1.3 mm.sup.2. Furthermore, the fabric has a Calculated Strand Density of 0.17l g/cc, a Clarity Index of at least 0.75, and an Absorbent Capacity of at least 7 grams of a colored, aqueous, saline solution per gram of the fabric when compressed under a pressure of 3.3 g/cm.sup.2. Plug Harshness and Compression Recovery of the fabric are excellent.

Debridement sponge

A soft, bulky light weight fabric having good absorbency and suitable for use as a wound dressing is prepared from a hydroentangled nonwoven fabric comprising a plurality of parallel spaced apart ribs interconnected by loose fiber bundles extending between adjacent ribs. The ribs comprise high density, highly entangled masses of fibers and contain at least about 60 percent by weight of the fiber in the fabric. The fabric is napped in a direction perpendicular to the ribs to obtain the soft, bulky fabric without tearing or disrupting the integrity of the fabric.

Absorbent wound dressing

A soft, bulky light weight fabric having good absorbency and suitable for use as a wound dressing is prepared from a hydroentangled nonwoven fabric comprising a plurality of parallel spaced apart ribs interconnected by loose fiber bundles extending between adjacent ribs. The ribs comprise high density, highly entangled masses of fibers and contain at least about 60 percent by weight of the fiber in the fabric. The fabric is napped ina direction perpendicular to the ribs to obtain the soft, bulky fabric without tearing or disrupting the integrity of the fabric.

Napped nonwoven fabric having high bulk and absorbency

Woven and nonwoven fabrics for use in surgical procedures are printed with a radiopaque polymeric composition which bonds to the surface of the fabric. The composition is applied in a visually distinctive pattern, or may assume the pattern of the underlying fabric. The polymeric composition is readily recognized in an X-ray image and provides an improved means for detecting a surgical sponge inadvertently left in a patient. Preferred compositions are latex or plastisols of a printable viscosity containing from 15 to 70% by weight BaSO.sub.4 having a particle size greater than about 5 microns.

Surgical fabric with printed X-ray marker

A loosely constructed knit or woven fabric is dimensionally stabilized by causing staple length textile fibers to be entangled about the intersections of the yarns comprising the fabric. The stabilized fabric is formed by covering one or both sides of the loosely constructed base fabric with a light web of the staple length fibers, and subjecting the composite material to hydraulic entanglement while supported on a porous forming belt configured to direct and concentrate the staple length fibers at the intersections of the yarns comprising the base fabric.

Stabilized fabric

A surgical sponge constructed of a nonwoven fabric is provided with an integral X-ray detectable element in the form of a yarn or monofilament which is positioned interiorly of the nonwoven fabric and in the plane thereof. The fabric is produced by placing the X-ray detectable element between two fibrous webs and subjecting the composite material to hydraulic entanglement to produce a patterned, nonwoven fabric.

Growing community of inventors

Randolph, NJ, United States of America

John Dyer