초록 ▼

A universal biopsy system is provided for performing percutaneous medical procedures. The biopsy system includes a cannula assembly removably coupled to a handle. The releasable coupling structures of the handle and the cannula assembly allow for rotational displacement of the cannula assembly using

A universal biopsy system is provided for performing percutaneous medical procedures. The biopsy system includes a cannula assembly removably coupled to a handle. The releasable coupling structures of the handle and the cannula assembly allow for rotational displacement of the cannula assembly using the handle, as well as the application of an axially directed force, either toward or away from the patient.

대표청구항 ▼

[ What is being claimed is:] [1.]1. A universal biopsy system comprising:a cannula having an open axially extended passage formed therein, said cannula having a distal end with a predetermined contour for penetrating a patient's tissue;a cannula hub member having a distal end coupled to a proximal e

[ What is being claimed is:] [1.]1. A universal biopsy system comprising:a cannula having an open axially extended passage formed therein, said cannula having a distal end with a predetermined contour for penetrating a patient's tissue;a cannula hub member having a distal end coupled to a proximal end of said cannula and a through bore disposed in axially aligned relationship with said passage of said cannula, said cannula hub member including a pair of projections extending from opposing sides of said cannula hub member; and,a handle having an opening formed in a lower side thereof for receiving said cannula hub member therein and releasable engagement therewith. said handle including a pair of recesses formed in opposing interior wall surfaces of said opening for respectively receiving said projections therein, each of said pair of recesses including an axially directed section extending from a first end disposed at a distal end of said opening and a circumferential section extending from a second end of said axially directed section to a terminal portion thereof, said terminal portion of each said circumferential section including an upper locking recess and an opposing lower locking recess for selectively respectively receiving said pair of projections therein to rotationally couple said handle to said cannula hub member responsive an axial displacement of said handle relative to said cannula hub member.