Devices, Methods, and Kits for a Biopsy Device

• Main Authors: GURUKULA VENKATA, CYBULSKI JAMES S, VAN DAM JACQUES
• Format: Patent
• Language: English
• Published: 07.05.2009
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

Provided herein are biopsy devices each comprised of a tissue collection element having a distal end and a proximal end connected to a drive mechanism. In one embodiment, the tissue collection element can be formed from a material having a first constrained configuration when positioned within the outer needle prior to deployment and a second unconstrained configuration when extended distally beyond the distal end of the outer needle. In another embodiment, the tissue collection element can be formed from a material having a first constrained configuration when a stylet is inserted into the tissue collection element and a second unconstrained configuration when the stylet is retracted from within the tissue collection element. In a third embodiment, the tissue collection element comprises a helical cutting edge along at least a portion of the length of the tissue collection element, wherein the helical cutting edge is adaptable to cut a portion of tissue from the target location. The tissue collection element is translationally and rotationally moveable within a target location in response to actuation by the drive mechanism, thereby collecting tissue. The biopsy devices provided herein can further comprise provisions for echogenecity, a non-friction coating at the tip, and means for providing aspiration. Further provided herein are methods for using the devices described and a kit.