EXCHANGEABLE CORE BIOPSY NEEDLE

摘要

The present disclosure provides an adjustable delivery handle system for interchangeably delivering a needle to a biopsy site. The adjustable delivery handle system includes a delivery handle having an inner hub housing component configured to interchangeably receive a needle subassembly that can be inserted into and withdrawn from the proximal handle member. The needle subassembly includes a biopsy needle having a distinct tissue collection distal end configured to maximize tissue sampling yield and collect a cohesive unit of sampled tissue. The distal end of the needle includes first and second tip portions extending therefrom and radially opposing one another. The first tip portion has a length greater than the second tip portion, thereby resulting in an increased surface area of a curvilinear cutting edge extending from the first tip portion to the second tip portion.

主权项

1. A device for needle biopsy comprising:
an adjustable delivery handle system comprising:
a delivery handle, at least a portion of which comprises an inner lumen configured to receive one of a plurality of exchangeable needle subassemblies; anda sheath coupled to a distal end of the handle and having a lumen in fluid communication with the inner lumen of the delivery handle; and a needle subassembly removably disposed within the inner lumen of the delivery handle and lumen of the sheath, the needle subassembly comprising an exchangeable biopsy needle comprising:
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 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, such that the first tip portion is configured to contact and engage tissue to be sampled prior to the second tip portion.