Title:
ナノ構造材料を使用した表面処理剤および変性剤
Document Type and Number:
Japanese Patent JP2007515202
Kind Code:
A
Abstract:
The invention is directed to nanostructure surface treatments, coatings or modifications formed from nanoscale building blocks. The nanostructure surface treatments, modifications or coatings have hydrophobic, hydrophilic and surface adherence properties. The nanoscale building blocks have orientation, geometry, packing density and composition that may be adjusted to control the unique surface characteristics of the desired treatment, coating or modification. Applications of this nanostructure technology include surgical clips, staples, retractors, sutures and manipulators where an improvement in traction, retention or occlusion is desired without excessive material or tissue deformation or where high compressive forces would be undesirable, dangerous or ineffective. In one aspect, a nanostructure surface treatment for a medical device having an external surface is disclosed, wherein the treatment is applied on the external surface to provide a hydrophobic or a hydrophilic surface. With this aspect, the treatment comprises titanium dioxide and provides nanoscopic structures having nearly vertical sidewalls. The treated surface of the device has contact angles greater than or equal to 150 degrees. The vertical sidewalls provide a negative capillary effect and have a width of about 200 nm. The vertical sidewalls attach to a wet surface by the negative capillary effect. The van der Waals forces of the vertical sidewalls enable the treated surface to attach to a dry surface. The treatment may be vapor deposited and cured on the device, or the treatment may be laser blasted on the device.
Inventors:
Bullstud John Earl
Hilal Neville
Johnson Gary M
Heart charles sea
Hilal Neville
Johnson Gary M
Heart charles sea
Application Number:
JP2006538368A
Publication Date:
June 14, 2007
Filing Date:
October 29, 2004
Export Citation:
Assignee:
Applied Medical Resources Corporation
International Classes:
A61L17/00; A61B17/06; A61B17/064; A61B17/12; A61B17/122; A61B17/28; A61B17/3201; A61B18/04; A61F2/02; A61F2/04; A61F2/06; A61F2/24; A61F2/84; A61L27/00; A61L29/00; A61L31/00; A61L33/00; A61M1/14; A61M1/28; B05D3/00; A61B17/00; A61B17/02; A61F2/00; C09D
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato