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US 6,712,774 B2Granted
Lockout for a surgical biopsy device
OwnerJames W. Voegele, Craig F. Forester +1inventors
InventorsJames W. Voegele, Craig F. Forester, William A. Garrison
Life of this patent
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Abstract
The present application describes an image-guided, vacuum assisted, percutaneous, coring, breast biopsy instrument which may be conveniently mounted to an x-ray machine, and incorporates a safety lockout system that is located at the proximal end of the biopsy instrument.
Claims6
A biopsy instrument comprising:
- a probe assembly, said probe assembly comprising:
- a cutter assembly;
- a piercer assembly slideably attached to said cutter assembly;
- a base assembly detachably mounted to said probe assembly wherein said base assembly comprises:
- a firing fork operatively connected to said piercer assembly
- a spring operatively connected to said firing fork wherein said spring opposes movement of said firing fork in a proximal direction;
- a trigger mechanism adapted to move said firing fork in a proximal direction;
- a latch mechanism adapted to hold said firing fork in a first position;
- a release mechanism adapted to release said latch mechanism;
- a lockout mechanism adapted to prevent said release mechanism from releasing said latch mechanism, said lockout mechanism comprising a spring biased member;
- a drive assembly including a flexible drive shaft which is operatively connected to said cutter assembly.
8 more elements
A biopsy instrument comprising:
- a probe assembly, said probe assembly comprising:
- a cutter assembly comprising:
- a cutter;
- a gear mechanism adapted to move said cutter;
- a piercer assembly slideably attached to said cutter assembly;
- a base assembly detachably mounted to said probe assembly wherein said base assembly comprises:
- a firing fork removably attached to said piercer assembly such that movement of said firing fork in a distal direction moves said piercer assembly in a distal direction;
- a spring operatively connected to said firing fork, said spring being adapted to oppose movement of said firing fork in a proximal direction;
- a trigger mechanism operatively connected to said firing fork, said trigger mechanism being adapted to move said cutter in a proximal direction;
- a latch mechanism operatively connected to said firing fork to hold said firing fork in a first, proximal position;
- a release mechanism adapted to release said latch mechanism when said release mechanism is moved in a first direction;
- a lockout mechanism adapted to prevent said release mechanism from moving in said first direction, said lockout mechanism including a spring biased rotatable plate comprising:
- a first spring wire;
- a second spring wire wherein said first and second spring wires define a first opening in said place;
- a handle affixed to said plate and projecting from said base assembly;
- a drive assembly including a flexible drive shaft operatively connected to said gear mechanism.
13 more elements
A biopsy instrument comprising:
- a probe assembly, said probe assembly comprising:
- a cutter assembly comprising:
- a cutter;
- a gear mechanism adapted to move said cutter;
- a piercer assembly slideably attached to said cutter assembly;
- a base assembly detachably mounted to said probe assembly wherein said base assembly comprises:
- a firing apparatus, said firing apparatus adapted to fire said piercer assembly in a distal direction;
- a spring disposed to oppose movement of a portion of said firing apparatus in a proximal direction;
- a lookout mechanism associated with said firing apparatus, said lockout mechanism comprising a rotatable plate.
6 more elements
Dependencies are inferred from the claim text.