Reusable core needle biopsy device and disposable needle system to eliminate internal contamination risk in reusable portion of device

Abstract

A reusable core biopsy device having a disposable needle assembly to trap and a reusable drive assembly to selectively drive the disposable needle assembly. The disposable needle assembly includes a contamination collection member defining a fluidically-sealed contamination collection chamber to receive and collect contamination during the extraction of the organic tissue sample. The reusable drive assembly includes a locking mechanism to maintain reusable drive assembly in a locked state. An activation member is to place the reusable drive assembly in an unlocked state, to thereby drive, in sequence, the inner needle member and the outer cannula member forward to extract the organic tissue sample.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application No. 62 / 668,340, filed May 8, 2018, which is hereby incorporated by reference in its entirety. technical field [0003] This embodiment relates to a reusable core needle biopsy device having a disposable needle system for capturing and collecting contaminants during extraction of an organic tissue sample. Background technique [0004] To diagnose breast cancer, breast tumor tissue is retrieved through a biopsy procedure. Surgical procedures exist, as well as fine needle and core needle biopsy procedures, core needle biopsy is the gold standard for breast cancer diagnosis and core needle biopsy devices are minimally invasive tools that consist of a thin needle with a cavity to capture tissue and a device that fires the needle drive. Core needle biopsy devices are often used with ultrasound guidance to locate regions of interest. Currently available techn...

AI Technical Summary

Problems solved by technology

When the needle is inserted into the patient and fired to extract an organic tissue sample, contamination passes the needle and enters the internal mechanism of the reusable part of the device, so the threat of this contamination creates a safety hazard, especially in During equipment reuse

[0006] Because the reusable components of conventional reusable core needle biopsy devices pose a significant risk of internal contamination, the device must undergo complex and inefficient cleaning and sterilization protocols between uses, which can cost up to twenty Four hours, this large safety risk and inefficient cleaning procedures deter physicians and hospitals from using the device

[0007] Vacuum-assisted needle biopsy devices have closed disposable parts that prevent internal contamination of the device, but are expensive and therefore cost-prohibitive in some markets

[0008] Another technical problem with reusable devices during core needle biopsy procedures is the unwanted noise generated by the reusable device

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