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US 2003/0199787 A1Published application
Pneumatic circuit
AssigneeTissue Extraction Devices, LLC
InventorJeffrey Schwindt
Life of this patent
Estimating the term…
Abstract
A pneumatic circuit and other components are provided for the operation of a medical device. The pneumatic circuit provides controlled pressurized air to a medical device for use during a medical procedure.
Claims18
A biopsy device comprising:
- a cannula with an orifice, the cannula being configured for insertion into a body to a point such that the orifice is adjacent to a tissue mass to be biopsied;
- and
- a pneumatic motor having a hollow shaft disposed within the cannula, the pneumatic motor shaft having a cutter end configured to rotate relative to the orifice to selectively cut tissue from the mass;
- wherein the tissue cut from the mass is drawn through the hollow shaft and through the pneumatic motor during operation of the biopsy device.
1 more element
A medical device comprising:
- a biopsy device configured to selectively cut tissue from a body during a cutting cycle;
- a pneumatic circuit coupled to the biopsy device for controlling the operation of the biopsy device;
- and
- a switch for activating the cutting cycle of the biopsy device, the switch and biopsy device being composed of substantially non-magnetic materials such that the biopsy device may be operated in conjunction with a Magnetic Resonance Imaging device.
1 more element
A medical device comprising:
- a biopsy device configured to selectively cut tissue from a body;
- a pneumatic circuit coupled to the biopsy device for controlling the operation of the biopsy device;
- a housing for the pneumatic circuit;
- a vacuum port coupled to the housing and having a vacuum conduit leading to the biopsy device;
- and
- a compressed air port coupled to the housing and having a compressed air conduit leading to the biopsy device.
3 more elements
Dependencies are inferred from the claim text.