Back to results
US 2010/0163544 A1Published application
Tube for fixation and method of producing same
AssigneeK.K. Endo Seisakusho
InventorsKiyotaka Shirai, Takashi Yaoita, Kenji Chonabayashi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeK.K. Endo Seisakusho
InventorsKiyotaka Shirai, Takashi Yaoita, Kenji Chonabayashi
Estimating the term…
A tube for fixation, which has increased durability and a method of producing the same are provided. Forming by spinning is carried out so as to thin the thickness A of a side wall of a bottomed prime tube 1 of a plastically deformable metal to a thickness of 20 to 50 μm while rotating the bottomed prime tube 1 about the axis thereof and a metal original form 4 is formed. The metal original form 4 formed by spinning is cut to form a metal tube 6. The surface 6a of the metal tube 6 is sandblasted to impart residual compression stress to the surface 6a and to roughen the same. The treated surface is covered with a fluorocarbon resin film 7. The fluorocarbon resin film 7 is then heated to be heat-shrunk and the fluorocarbon resin film 7 is formed on the metal tube 6. Thus, a tube for fixation 8 is formed.
A method for producing a tube for fixation, comprising:
A tube for fixation obtained by performing plastic working by drawing to thin the thickness of a side wall of a cylindrical original form of a plastically deformable metal to a thickness of 20 to 50 μm while rotating the cylindrical original form about the center axis thereof and by imparting residual compression stress to the surface of the metal which has been plastic-worked by drawing, roughening the surface, covering the roughened surface with a fluorocarbon resin film, heating the fluororesin film so as to be heat-shrunk, thus forming the fluororesin film on the surface.
Dependencies are inferred from the claim text.