Distally generated ultrasonic motion resection tool

#The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to endoscopic medical devices with distally actuated axial displacement configured to impart in-plane or rotational ultrasonic reciprocation to an end effector.

#Optimal endoscopic resection of a target tissue should cause minimal damage to both the resected tissue (e.g., for accurate post-operative diagnosis and visualization of the tissue margins to verify complete removal) and the surrounding tissue architecture (e.g., to minimize post-operative complications). The heat generated by conventional radiofrequency (RF) energy tissue resection devices, which is necessary to promote coagulation and control bleeding, tends to damage/destroy the architecture of both the target tissue and the healthy surrounding tissue.

#A variety of advantageous medical outcomes may therefore be realized by the ultrasonic endoscopic medical devices of the present disclosure.

#Non-limiting embodiments of the present disclosure are described by way of example with reference to the accompanying figures, which are schematic and not intended to be drawn to scale. In the figures, each identical or nearly identical component illustrated is typically represented by a single numeral. For purposes of clarity, not every component is labeled in every figure, nor is every component of each embodiment shown where illustration is not necessary to allow those of ordinary skill in the art to understand the disclosure. In the figures:

#FIGS. 1A-1F provide perspective views of an ultrasonic endoscopic medical device, according to one embodiment of the present disclosure.

#FIGS. 2A-2C provide perspective views of an ultrasonic endoscopic medical device, according to one embodiment of the present disclosure.

#The present disclosure is not limited to the particular embodiments described herein. The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting beyond the scope of the appended claims. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosure belongs.

#Although embodiments of the present disclosure are described with reference to ultrasonic endoscopic medical devices, e.g., which include distally actuated end effectors configured to cut/resect mucosal tissue of the gastrointestinal (GI) tract using ultrasonic transverse rotation, it should be appreciated that such ultrasonic endoscopic medical devices may include a variety of end effectors (e.g., scissors, graspers, biopsy needles, etc.) configured to manipulate mucosal and non-mucosal tissues in a variety of body lumens, body passageways, organs and the like.

#As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” or “includes” and/or “including” when used herein, specify the presence of stated features, regions, steps elements and/or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components and/or groups thereof.