INTRODUCER FOR BIOPSY DEVICE

摘要

A biopsy system comprises an introducer and a biopsy device. The introducer comprises a cannula and at least two leaves. The cannula comprises an ovular cross-section, an open distal end and an open proximal end. The ovular cross-section defines a lumen extending between the open distal end and the open proximal end. The ovular cross-section of the cannula includes at least two flat sides. The at least two leaves extend distally from the open distal end. At least a portion of each of the at least two leaves extend from a respective flat side of the at least two flat sides of the cannula. The biopsy device comprises a body and an elongate needle. The elongate needle extends distally from the body. The elongate needle includes an ovular cross-section defining two straight sides. The cannula of the introducer is configured to slidably receive the elongate needle of the biopsy device.

主权项

1. A biopsy system, comprising:
(a) an introducer, wherein the introducer comprises:
(i) a cannula comprising an ovular cross-section, an open distal end and an open proximal end, wherein the ovular cross-section defines a lumen extending between the open distal end and the open proximal end, wherein the ovular cross-section of the cannula includes at least two flat sides, and(ii) at least two leaves extending distally from the open distal end of the cannula, wherein at least a portion of each of the at least two leaves extends from a respective flat side of the at least two flat sides of the cannula, wherein the at least two leaves are positioned relative to the cannula to define an open space between the at least two flat sides of the cannula; and (b) a biopsy device, wherein the biopsy device comprises:
(i) a body, and(ii) an elongate needle extending distally from the body, wherein the elongate needle includes a closed distal end and an ovular cross-section, wherein the closed distal end comprises a sharp tip, wherein the ovular cross-section defines two straight sides;wherein the cannula of the introducer is configured to slidably receive the elongate needle of the biopsy device.