Polymeric material for use in and with sterilizable medical devices
AssigneeKARL STORZ Imaging, Inc.
InventorsKin Ming Kwan, Dejan Korkut, Thomas J. Anhalt, Paul McCarty, Diegas E. Zavala
Life of this patent
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Abstract
The invention provides an endoscopic video camera having a polymeric knob assembly, wherein the polymeric material used for manufacturing the knob assembly includes polyphenylsulfone resin, titanium dioxide, tin oxide, and colored metallic additives, is capable of withstanding sterilization, and has a metallic cosmetic appearance. The invention also provides methods of manufacturing the knob assembly by plastic injection molding processes, wherein undesirable molding characteristics are concentrated on portions of the knob assembly that are removed by secondary machining or post machining.
Claims16
A knob assembly comprising:
- a first shell, said first shell having an interior surface;
- at least one rib, said at least one rib extending from said interior surface of said first shell;
- at least one boss, said at least one boss extending from said interior surface of said first shell;
- a ring, said ring having an inside diameter and an outside diameter, wherein at least a portion of said outside diameter is in contact with said at least one rib, and at least a portion of said inside diameter is in contact with said at least one boss;
- at least one magnet, said at least one magnet positioned on the inside diameter of said ring;
- and
- a second shell, said second shell having a first end, a stop groove on said first end, and a connection with said first shell wherein at least a portion of said ring is covered between said first shell and said second shell.
A camera comprising at least one knob assembly, said at least one knob assembly comprising:
- a first shell, said first shell having an interior surface;
- at least one rib, said at least one rib extending from said interior surface of said first shell;
- at least one boss, said at least one boss extending from said interior surface of said first shell;
- a ring, said ring having an inside diameter and an outside diameter, wherein at least a portion of said outside diameter is in contact with said at least one rib, and at least a portion of said inside diameter is in contact with said at least one boss;
- at least one magnet, said at least one magnet positioned on the inside diameter of said ring;
- and
- a second shell, said second shell having a first end, a stop groove on said first end, and a connection with said first shell wherein at least a portion of said ring is covered between said first shell and said second shell.
A knob assembly comprising:
- a first metal portion, said first metal portion having an inside diameter an outside diameter, a first end and a second end;
- a stop groove, said stop groove located on said first end of said first metal portion;
- at least one recess, said at least one recess located on said second end of said first metal portion;
- at least one magnet, said at least one magnet in contact with at least a portion of said inside diameter of said first metal portion;
- a second metal portion, said second metal portion having a first end and an inside diameter;
- a skirt, said skirt extending from said inside diameter of said second metal portion;
- and
- at least one boss, said at least one boss extending from said first end of said second metal portion, wherein said at least one boss is connected with said at least one recess to connect said first metal portion with said second metal portion;
- and
- a shell, wherein said shell is in contact with at least a portion of said outside diameter of said first metal portion.
A camera comprising at least one knob assembly, said at least one knob assembly comprising:
- a first metal portion, said first metal portion having an inside diameter an outside diameter, a first end and a second end;
- a stop groove, said stop groove located on said first end of said first metal portion;
- at least one recess, said at least one recess located on said second end of said first metal portion;
- at least one magnet, said at least one magnet in contact with at least a portion of said inside diameter of said first metal portion;
- a second metal portion, said second metal portion having a first end and an inside diameter;
- a skirt, said skirt extending from said inside diameter of said second metal portion;
- and
- at least one boss, said at least one boss extending from said first end of said second metal portion, wherein said at least one boss is connected with said at least one recess to connect said first metal portion with said second metal portion;
- and
- a shell, wherein said shell is in contact with at least a portion of said outside diameter of said first metal portion.
Dependencies are inferred from the claim text.