The present invention provides medical articles having a fluid control film component which comprise a sheet having microchannels that permit directional flow of a liquid. Articles incorporating the fluid control film include: wound dressings, wound drains, tympanostomy fluid wicks, intravenous access site dressings, drug delivery dressings, and sweat collection patches.
Steven B. Heinecke - New Richmond WI Wayne L. Liedtke - Stillwater MN
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
A61F 1306
US Classification:
424443, 424445, 424446, 424447, 424448, 424449
Abstract:
A wound dressing and delivery system comprising carrier frame that overlaps a heavy absorbent pad on a thin backing of the wound dressing (with the backing sandwiched between the pad and carrier frame) so that the carrier frame and absorbent pad support (e. g. , rigidify) the backing to facilitate handling. The carrier frame also has a window over the absorbent pad. Adhesive is provided one major surface of the backing, and the absorbent pad is provided on this major surface. The carrier frame is provided on the opposite major surface to the absorbent pad. The backing is preferably a very thin transparent or translucent elastic polymeric film, and the absorbent pad is relative thick, heavy and stiff and preferably includes hydrocolloid or hydrogel materials. Slits may be provided in the carrier frame to permit one of more portions of the frame to be removed from the backing without removing the entire frame from the backing.
Medical Dressings With Multiple Adhesives And Methods Of Manufacturing
Medical dressings are disclosed that include multiple exposed pressure sensitive adhesives. One of the pressure sensitive adhesives includes a bioactive agent and is substantially contact transparent. In some embodiments, all of the adhesives are substantially contact transparent. Also provided are methods of manufacturing the medical dressings. By providing multiple exposed pressure sensitive adhesives, the pressure sensitive adhesive formulations can be varied to provide desired properties in different areas of the dressing. A pressure sensitive adhesive that exhibits relatively high tack to skin may be provided around the periphery of the dressing while a pressure sensitive adhesive incorporating a bioactive agent is provided in the center of the dressing. Alternatively, a higher tack pressure sensitive adhesive may be provided at two opposing sides of the dressing with a bioactive adhesive located in between the opposing portions of higher tack adhesive. The present invention also provides methods of transferring adhesives using a mask such that the adhesive is transferred to selected areas of a receiving surface.
Surgical Dressing With Delivery System And Method Of Manufacture
Adhesive composite dressings with simple and inexpensive delivery systems and methods of manufacturing the dressings are disclosed. The dressings include liners having a release surface and a retention surface. The bond strength between the liner and the pressure sensitive adhesive in the area of the retention surface is greater than the bond strength between the liner and the pressure sensitive adhesive in release surface. The increased bond strength in the area of the retention surface allows the backing to be held taut during delivery to assist in smooth aseptic delivery of the dressing. The retention surfaces can be provided by abrasion, embossing, perforating the liner, or combinations thereof. In addition, the methods of manufacturing the dressings can be practiced in-line with other converting operations using standard release liners.
Carrier Delivered Dressing And Method Of Manufacture
A carrier delivered dressing which has a conformable backing with a pressure sensitive adhesive coated on a bottom face and a low adhesion coating on a top face. The backing is supported during shipping and handling by a liner attached to the adhesive and a removable heat sealed carrier attached to the top face of the backing. The method according to the present invention discloses the steps of forming and optionally removing windows in a carrier material and nonpermanently heat sealing the carrier to the backing to form the dressings of the present invention.
Raymond P. Johnston - Lake Elmo MN, US Matthew T. Scholz - Woodbury MN, US Steven B. Heinecke - New Richmond WI, US Charles A. Hentzen - Woodbury MN, US
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
A61F013/00
US Classification:
602 52, 602 48
Abstract:
The present invention provides drug delivery dressings having a fluid control film component that comprise a sheet having microchannels that permit directional flow of a liquid.
Steven B. Heinecke - New Richmond WI, US Robert H. Menzies - Hudson WI, US Karen M. Bisbee - Maplewood MN, US Scott G. Norquist - St. Paul MN, US
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
A61F005/00 A61S013/00
US Classification:
602 41, 602 58
Abstract:
A conformable adhesive article for use as a sterile medical dressing is described. The article includes a breathable polymeric matrix, a plurality of phases, and an adhesive composition positioned on the polymeric matrix. The plurality of phases preferably provide reinforcement and stiffness to the article. The article permits transport of moisture across the breathable polymeric matrix, preferably at an Inverted water moisture vapor transmission rate of at least 300 g/m/24 hours.
Thin Film Delivery System And Method Of Manufacture
A carrier delivered dressing is disclosed which has a conformable backing with a pressure sensitive adhesive coated on a bottom face and removable carrier attached to the top face of the backing. A bond block material is positioned between the backing and the carrier. A cut line traverses both the carrier and the bond block material to form a tab.
Salisbury University 2014 - 2016
Bachelor of Applied Science, Bachelors, Business Administration, Management, Business Administration and Management
Salisbury University
Interests:
Children Environment Science and Technology Animal Welfare Health
3M Health Care
Retired Corporate Scientist
Us Navy May 1969 - Apr 1972
Accounting
Education:
University of Wisconsin - Stout 1972 - 1976
New Richmond High School 1968
Skills:
Rotary Die Converting Process Poyurethane Film Extrusion Adhesive Coating Medical Devices Adhesives Adhesion To Skin Device Characterization Competitive Intelligence Patentability Patent Searching Patent Applications Sales Process Business Strategy Manufacturing Product Launch Patents R&D Leadership Product Development Six Sigma Cross Functional Team Leadership Strategy Strategic Planning Market Development Healthcare Project Management Commercialization Research and Development