Patent ID: 9017298
Filing Date: 2015-04-28
Classification: A61B,A61M

Abstract:
1. An aspiration assembly comprising: an outer cannulated needle having a tip; a threaded collar mounted to an end of the outer cannulated needle opposite to the tip; and an inner aspiration needle having a tip at a first end and a threaded portion proximate to a second end; wherein the inner aspiration needle is inserted within the outer cannulated needle such that the tip of the inner aspiration needle extends beyond the tip of the outer cannulated needle and the threaded portion of the inner aspiration needle threadably engages the threaded collar through cooperation between a first plurality of threads of the threaded collar and a second plurality of threads of the threaded portion of the inner aspiration needle; wherein the distance that the tip of the inner aspiration needle extends from the tip of the outer cannulated needle increases when the inner aspiration needle is rotated in a first direction relative to the outer cannulated needle as a result of cooperation between the first threads and the second threads; and wherein the distance that the tip of the inner aspiration needle extends from the tip of the outer cannulated needle decreases when the inner aspiration needle is rotated in a second direction relative to the outer cannulated needle as a result of cooperation between the first threads and the second threads, the second direction is opposite to the first direction.