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US 4,790,329 AGranted
Adjustable biopsy localization device
AssigneeTrustees of Beth Israel Hospital
InventorMorris Simon
Life of this patent
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Abstract
A unique adjustable biopsy localization device is provided which allows for insertion at a selected anatomic site, visualized radiologically, and which can be secured in an engaged position, disengaged into a moveable position and repositioned at will. The localization device comprises cannula and rod elements as a preassembled unit which can be sterilized, packaged and conveniently stored until required for use by the radiologist or surgeon.
Claims7
An adjustable biopsy localization device comprising:
- a single cannula having a substantially tubular wall and an internal lumen;
- an open slot in said tubular wall;
- a pointed rod inserted into said lumen of said cannula, said rod being advanceable, retractable and rotatable within said lumen;
- and
- an extendable and retractable appendage means disposed on said rod, said appendage means being rotatably alignable with said slot and being extendable for anchoring said device at a target biopsy site in a subject's body and being retractable through said slot in said tubular wall for enabling removal and possible relocation of said device.
2 more elements
Dependencies are inferred from the claim text.