Title:
【発明の名称】医用関節運動式案内アーム
Document Type and Number:
Japanese Patent JP2001517101
Kind Code:
A
Abstract:
A device is provided for stabilizing and positioning an otherwise hand-held medical instrument, such as a biopsy power driver and probe, to ensure the ability to accurately place the probe into the breast and maintain position relative to a particular tissue site from any desired entry point. The device comprises a main arm having a generally vertical portion and a generally horizontal portion. A clamping assembly permits attachment of the apparatus to a stationary object, which is preferably an examination table, and includes a locking clamp having a gripping mode and a releasing mode for alternately gripping and releasing the main arm, and a lever assembly for actuating the locking clamp between the gripping mode and the releasing mode. A horizontal clamp, attached to the generally horizontal portion of the main arm, provides support for an articulating arm assembly having a first arm portion, or upper arm, and a second arm portion, or forearm, wherein the upper arm and forearm are attached together by an elbow joint, so that they may be articulated relative to one another about a common axis disposed through the elbow. A mounting bracket for securing the biopsy power driver and probe is attached to a distal end of the forearm. The elbow joint attaching the upper arm and forearm of the articulating arm assembly comprises a spring loaded counterbalance mechanism which functions to support the weight of the medical instrument, thereby giving the instrument a weightless feel during the positioning process, which prevents fatigue on the part of a user and therefore permits more delicate and precise movements of the instrument.
Inventors:
Jord El, Waddle
Richiet, Mark A.
Richiet, Mark A.
Application Number:
JP53036497A
Publication Date:
October 02, 2001
Filing Date:
February 25, 1997
Export Citation:
Assignee:
Ethicon End-Surgery Incorporated
International Classes:
A61B17/34; B25J11/00; A61B19/00; F16M11/20; A61B10/00; A61B10/02; (IPC1-7): A61B19/00; B25J11/00; F16M11/20
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)