Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Thomas Heske0
Norbert Heske0
Date of Patent
January 12, 2010
Patent Application Number
10549820
Date Filed
March 29, 2004
Patent Primary Examiner
Patent abstract
A coaxial cannula for extracting samples from tissue having a biopsy needle unit provided with a space for sample extraction and a sample separation unit that coaxially encompasses the biopsy needle on an external wall and that is longitudinally movable. The coaxial cannula includes a sealing element that is arranged on the proximal end thereof and closes the space between the internal wall of the coaxial cannula and the external wall of the sample separation unit. The sealing element opens an air outlet when the biopsy needle unit is inserted, and prevents air intake when the biopsy needle unit is positioned and vacuum is produced in the internal chamber of the biopsy needle.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
