Implant having a photocatalytic unit

• US 7,744,555 B2
• Filed: 02/06/2004
• Issued: 06/29/2010
• Est. Priority Date: 02/06/2004
• Status: Active Grant

• Current Assignee: Depuy Spine Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Spine Incorporated (Johnson & Johnson)
• Inventors: Beardsley, Tim, Malone, John Daniel, DiMauro, Thomas M., Serhan, Hassan, Attawia, Mohamed, Sutton, Jeffrey K.
• Primary Examiner(s): Stephens; Jacqueline F.
• Application Number:
  US10/774,105
• Publication Number:
  US 20050175658A1
• Time in Patent Office: 2,335 Days
• Field of Search: 604/8, 604/20, 604/501, 604/174, 604/180, 604/96.01, 604/890.1, 422/139, 422/122, 424/423
• US Class Current: 604/8
• CPC Class Codes: A61B 17/866 Material or manufacture
• CPC Class Codes: A61F 2/30767 Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
• CPC Class Codes: A61F 2/3094 Designing or manufacturing processes
• CPC Class Codes: A61F 2/34 Acetabular cups
• CPC Class Codes: A61F 2/36 Femoral heads ; Femoral endoprostheses
• CPC Class Codes: A61F 2/3662 Femoral shafts
• CPC Class Codes: A61F 2/38 for elbows or knees
• CPC Class Codes: A61F 2/4455 for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages intervertebral discs A61F2/442
• CPC Class Codes: A61F 2002/30663 multiaxial, e.g. biaxial; multipolar, e.g. bipolar or having an intermediate shell articulating between the ball and the socket
• CPC Class Codes: A61F 2002/30668 Means for transferring electromagnetic energy to implants
• CPC Class Codes: A61F 2002/30929 having at least two superposed coatings
• CPC Class Codes: A61F 2002/3611 Heads or epiphyseal parts of femur
• CPC Class Codes: A61F 2002/3625 Necks
• CPC Class Codes: A61F 2002/443 having two transversal endplates and at least one intermediate component
• CPC Class Codes: A61F 2250/0001 Means for transferring electromagnetic energy to implants
• CPC Class Codes: A61F 2310/00023 Titanium or titanium-based alloys, e.g. Ti-Ni alloys
• CPC Class Codes: A61F 2310/00604 Coating made of aluminium oxide or hydroxides
• CPC Class Codes: A61F 2310/0061 Coating made of silicon oxide or hydroxides
• CPC Class Codes: A61F 2310/00616 Coating made of titanium oxide or hydroxides
• CPC Class Codes: A61L 27/06 Titanium or titanium alloys
• CPC Class Codes: A61L 27/427 : of other specific inorganic materials not covered by A61L27/422 or A61L27/425
• CPC Class Codes: A61L 27/56 : Porous materials, e.g. foams or sponges
• CPC Class Codes: A61L 31/022 : Metals or alloys
• CPC Class Codes: A61L 31/124 : of other specific inorganic materials not covered by A61L31/122 or A61L31/123
• CPC Class Codes: A61L 31/146 : Porous materials, e.g. foams or sponges
• CPC Class Codes: A61M 5/158 : Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61N 2005/0651 : Diodes
• CPC Class Codes: A61N 2005/0661 : ultraviolet
• CPC Class Codes: A61N 5/0601 : Apparatus for use inside the body
• CPC Class Codes: A61N 5/0624 : for eliminating microbes, germs, bacteria on or in the body
• CPC Class Codes: B01J 35/39 : Photocatalytic properties

Abstract

An implant comprises a photocatalytic layer on at least one surface. In some embodiments, the photocatalytic layer is a semiconductor oxide that is doped. According to some embodiments, the implant comprises a wave guide. According to some embodiments the implant comprises a light port. According to some embodiments, the implant comprises a reflective material on a surface of the waveguide. According to some embodiments the implant comprises a composite material comprising a first material that has a transmissivity when exposed to a predetermined wavelength of light and a second material that has photocatalytic activity when exposed to the predetermined wavelength of light. According to some embodiments the implant comprises a light source adapted to irradiate the photocatalytic surface.

Claims

1. An infusion set comprising:

a needle housing having a proximal port, a distal port and a base surface;

a mounting pad coupled to the base surface of the needle housing and having a transverse hole; and

a transcutaneous cannula having a proximal end connected to the distal port of the needle housing and a distal end that is adapted to be fed through the transverse hole;

wherein the transcutaneous cannula comprises;

a tube having an indwelling portion, an outer wall and an inner wall, and an outer photocatalytic layer attached to the outer wall of the tube,

wherein the photocatalytic layer attached to the indwelling portion of the tube comprises a semiconductor oxide, wherein the semiconductor oxide comprises titania, wherein at least the outer surface of the titania is doped, and wherein the dopant comprises nitrogen.

2. The infusion set of claim 1, further comprising an inner photocatalytic layer attached to the inner wall of the tube.

3. The infusion set of claim 1, wherein the tube comprises silicone.