Patent ID: 7842011
Filing Date: 2010-11-30
Classification: A61M

Abstract:
1. A medical instrument, comprising a tubular body, at least one injection needle housed in said tubular body and longitudinally undisplaceable in view of said tubular body, each of said at least one injection needle has a radially outwardly directed tip portion, a control element housed in said tubular body, said control element being axially displaceable within said tubular body, said control element being in a positive operative connection with said at least one injection needle, wherein in a first axially displaced position of said control element said radially outwardly directed tip portion of said needle being positively fully retracted into said tubular portion by said control element, and in a second axially displaced position of said control element at least said tip portion of said needle being positively pushed laterally out from said tubular body by said control element, wherein said control element has a retracting element which fully retracts said tip portion of said at least one injection needle back into said tubular body when said control element is axially displaced from said second position into said first position.