US PATENT SUBCLASS 602 / 48
.~.~ Wound contact layer containing treatment material

Current as of: June, 1999
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602 /   HD   SURGERY: SPLINT, BRACE, OR BANDAGE

41  DF  BANDAGE STRUCTURE {4}
42  DF  .~ Skin laceration or wound cover {7}
48.~.~ Wound contact layer containing treatment material {3}
49  DF  .~.~.~> Polysaccharide
50  DF  .~.~.~> Amino acid, polypeptide, or protein
51  DF  .~.~.~> Lipid (e.g., oil, fat, or wax)

DEFINITION

Classification: 602/48

Wound contact layer containing treatment material:

(under subclass 42) Subject matter having a composition in the wound contacting layer of the wound cover which is designed to promote healing.

(1) Note. Subclass 43 contains skin laceration or wound covers which specify physical structural features or surface textural features which directly contact the wound (e.g., nonstick properties). Subclass 48 contains skin laceration or wound covers which have treatment material or composition in the wound contacting layer which is designed to promote

healing of a wound. A patent which discloses a treatment material or composition only and has no mention of surface textural features is properly classifiable in subclass 48. If both surface textural features and a treatment material are present then the patent is properly originally classifiable in subclass 43 and a cross reference should be made in subclass 48.

(2) Note. Class 424 provides for bandages, bandage applicators, or body dressing which contain bio-affecting, body treating, or drug compositions with at most a randomly impregnated base material. For example, Class 128 takes a base material or substrate wherein particular portions thereof are impregnated with a Class 424 compositions.

(3) Note. Class 424 provides for a process of using a bandaging device wherein the process is at most single or plural steps of merely applying one or more Class 424 compositions to a wound site.

(4) Note. A composition containing a solid synthetic polymer used to form a barrier or film layer on a wound site in order to promote healing thereof is properly classifiable in Class 424.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54, for wound facing adhesive layer materials. SEE OR SEARCH CLASS

424, Drug, Bio-Affecting and Body Treating Compositions,

444, 449 for bandage compositions with incorporated medicaments.

604, Surgery,

304, 308 for medicament containing wound contact layers.