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US 2019/0099292 A1Published application
Electronic guillotine vitrectomy cutter
AssigneeJohnson & Johnson Surgical Vision, Inc.
InventorsScott G. Strayer, Lauren M. Hickey
Life of this patent
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Abstract
A vitrectomy apparatus is provided, including a disposable cutter that incorporates a linear voice coil motor to generate consistent and rapid guillotine action without the use of a rotary motor or traditional linear motor. The apparatus includes voice coil actuator to provide for a forward and backward reciprocating motion cutting blade.
Claims31
A vitrectomy apparatus, comprising:
- a vitrectomy hand piece comprising a guillotine cutting device, the device comprising:
- a bobbin assembly in communication with an internal cutting shaft, the bobbin capable of generating a magnetic field in response to an applied voltage;
- and
- at least one magnet located near the center of the guillotine cutting device;
- and
- at least one internal shell;
- wherein the bobbin assembly moves forward and backward based on a difference in polarity of the magnet in response to a generated magnetic field of voltage applied to the one or more pieces of magnetic wiring;
- and
- wherein the vitrectomy hand piece comprises a tube communicatively connected to the internal cutting shaft suitable for fluid flow through or around the apparatus.
6 more elements
A method of controlling a guillotine cutting device, the device comprising:
- providing a bobbin wound with one or more pieces of magnetic wiring and affixed to an internal cutting shaft, the one or more pieces of magnetic wiring capable of generating a magnetic field;
- providing at least one magnet in communication with the bobbin;
- and
- generating at least one magnetic field from a provided voltage, wherein the bobbin moves forward and backward based on a difference in polarity of the magnet in response to the magnetic field.
1 more element
Dependencies are inferred from the claim text.