Adjustable biopsy localization device

• US 4,790,329 A
• Filed: 06/12/1987
• Issued: 12/13/1988
• Est. Priority Date: 06/12/1987
• Status: Expired due to Fees

• Current Assignee: BETH Israel Medical Center (Mount Sinai Beth Israel)
• Original Assignee: BETH Israel Hospital Boston
• Inventors: Simon, Morris
• Primary Examiner(s): Coven, Edward M.
• Assistant Examiner(s): Citrin, Randy
• Application Number:
  US07/062,443
• Time in Patent Office: 550 Days
• Field of Search: 128/749, 128/751, 128/754, 128/763, 128/310, 604/57, 604/59, 604/60, 604/164, 604/165, 403/329, 403/377, 403/378
• US Class Current: 600/562
• CPC Class Codes: A61B 2017/00349 Needle-like instruments having hook or barb-like gripping means, e.g. for grasping suture or tissue A61B17/06066 takes precedence
• CPC Class Codes: A61B 2017/3484 Anchoring means, e.g. spreading-out umbrella-like structure
• CPC Class Codes: A61B 2090/3908 Soft tissue, e.g. breast tissue
• CPC Class Codes: A61B 2090/3987 Applicators for implanting markers
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

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.

Claims

1. 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. The adjustable biopsy localization device as recited in claim 1 further comprising means for advancing, retracting and rotating said rod within said lumen of said cannula.

3. The adjustable biopsy localization device as recited in claim 1 further comprising:

one end of said rod being configured as a crook;

a hub disposed upon said tubular wall at on end of said cannula;

a coiled spring mounted on said rod; and

a notch in said hub.

4. The adjustable biopsy localization device as recited in claim 1 wherein one end of said tubular wall terminates as a straight edge.

5. The adjustable biopsy localization device as recited in claim 1 wherein said rod point is substantially conical-shaped.

6. The adjustable biopsy localization device as recited in claim 1 wherein an adjustable screw-clamp is mounted on said cannula.

7. The adjustable biopsy localization device as recited in claim 1 wherein:

said pointed rod is partially split along its length; and

said extendable and retractable appendage is disposed upon said partially split length of said rod.