Patent ID: 6033369
Filing Date: 2000-03-07
Classification: A61B

Abstract:
A disposable biopsy needle, comprising:an outer tube defining a first lumen, the outer tube having a proximal end and a tapering distal tip;an inner tube defining a second lumen, the inner tube being disposed within the outer tube for rotatable movement therein and having a proximal end which extends proximal to the proximal end of the outer tube;a knob affixed to the proximal end of the inner tube; anda handle affixed to the proximal end of the outer tube, the handle having a bore therethrough, the bore including a distal bore portion which is sized to receive the outer tube and a proximal bore portion which is sized to receive the knob,wherein the knob is seated within the proximal bore portion,wherein the handle further includes a resiliently flexible lip positioned to overlie and constrict access to the proximal bore portion, the lip being deflected during insertion of the knob into the handle and returning to an undeflected state once the knob is seated within the proximal bore portion, whereby axial movement of the knob and the inner tube are restrained.