Ascendia Ab

Amedic Ab

Anders Weilandt

Mikael Lindgren

A needle guide system for a medical imaging instrument comprises a needle guide assembly ( ) and a mounting assembly ( , optionally ) for attaching the needle guide assembly to a transducer, the mounting assembly comprising self-destroying means effective on dismounting. The mounting assembly comprises an attaching clip ( ) mountable on a transducer directly or via an adapter ( ), and a locking clip ( ) mountable on the attaching clip from which it can be dismounted easily only by breaking indications of fracture comprised by the attaching clip. The needle guide assembly ( ) comprises a revolver ( ) capable of receiving needles of varying diameter and a journal clip ( ) by which it is mounted on the locking clip ( ).

Disposable needle guide system

A biopsy instrument includes a canula slidingly disposed in a finger tube having a finger at its distal end. By forward displacement of the finger tube relative to the canula the finger is inserted into an opening in the canula wall near its cutting front edge. Thereby a piece of tissue located inside the canula is severed from living tissue. The instrument has a steel spring compressed against a force of at least 35 N for displacing the canula and the finger tube in the tissue cutting step. The stopper on which the moving canula impacts includes an element of an impact damping design. The impact damping element is made of high-impact grade ABS-polymer or a polymer with similar physical properties. It can be used also with known biopsy instruments having a moving canula and/or stylet driven by a powerful spring. Also described is a loading assembly for a biopsy apparatus incorporating the biopsy instrument.

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Sollentuna, Sweden

Anders Weilandt