Patent ID: 8721563
Filing Date: 2014-05-13
Classification: A61B

Abstract:
1. A method of sampling biological tissue with a biopsy device having a bulkhead coupled to a flexible member having at least one lumen at least partially disposed in a needle that extends along a longitudinal axis between a distal end and a proximal end, the method comprising: capturing a biological sample in a longitudinal aperture defined on a circumference of the needle; filling a trough defined by the interior surface of the needle disposed about the bulkhead with a bio compatible fluid; and translating the flexible member having the at least one lumen and bulkhead through the interior of the needle to transport the biological sample, aided by the filling of the trough with the bio compatible fluid, from the distal to the proximal ends, the flexible member having a first end and a second end and wherein only the first end of the flexible member is attached to the bulkhead, and the translating includes rotating a rotational member engaged with the flexible portion in a first rotational direction to wind a part of the flexible portion about the rotational member to cause an axial displacement of the bulkhead in a proximal direction within the needle, and rotating the rotational member in a second rotational direction to extend the part of the flexible portion from the rotational member to cause an axial displacement of the bulkhead in a distal direction within the needle.