EXCHANGEABLE CORE BIOPSY NEEDLE

摘要

The present disclosure generally relates to a biopsy needle configured to maximize tissue sampling yield and collect a cohesive unit of sampled tissue. The biopsy needle includes an elongate tubular body comprising a lumen extending therethrough from a proximal open end to a distal open end of the body. The distal end includes first and second tip portions extending therefrom and formed on opposing sides of the needle body. The first tip portion generally extends further from the distal end than the second tip portion, resembling a staggered configuration, resulting in an increased surface area of multiple cutting edges formed between the first and second tip portions on either side of the needle body. Additionally, each of the first and second tip portions defines a penetrating point configured to pierce the tissue to be sampled and further direct sampled tissue towards the lumen of the body to be excised by the cutting edges upon contact therewith.

主权项

1. A biopsy needle comprising:
an elongate tubular body having a longitudinal axis and comprising a lumen extending therethrough from an open proximal end to an open distal end of the body, the distal end comprising a first tip portion extending from the distal end and having a first length and a second tip portion extending from the distal end and having a second length that is less than the first length of the first tip portion.