Fine needle arrangement for cell sampling
AssigneeNeodynamics AB
InventorsHans Wiksell, Vilhelm Ekstrand, Gert Auer
Life of this patent
Estimating the term…
Abstract
Fine needle arrangement for taking a sample of cells from suspicious lesions by using fine needle aspiration (FNA) technique, including a tubular needle member (1), a storage compartment (2) enclosing a chamber, and a coupling (3) to which a connector may be attached. The chamber is configured with a gradually increasing cross-sectional area from the distal part of the chamber to the proximal part of the chamber, such that the chamber has no residual spaces where cell samples may be trapped, and that an efficient air streaming is achieved.
Claims8
A fine needle arrangement for taking a sample of cells from suspicious lesions by using fine needle aspiration (FNA) technique, comprising:
- a tubular needle member;
- a storage compartment enclosing a chamber;
- and
- a coupling to which a connector may be attached,
- wherein said chamber has two transition sections, a first transition section having a diameter that increases continuously from an inner diameter of the needle to a diameter of the main chamber part, and a second transition section having a diameter that increases continuously from the diameter of the main chamber part to an inner diameter of the coupling, and
- wherein said transition sections are configured without any residual spaces, such that the chamber has no residual spaces where cell samples may be trapped, and that an air streaming is achieved.
Dependencies are inferred from the claim text.