Patent ID: 11957406
Assignee: MINERVA SURGICAL, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A tissue resecting device for resecting uterine polyps comprising:
an elongated structure having a longitudinal axis, the elongated structure comprising an outer sleeve with a distal window configured to receive uterine polyp tissue and an inner sleeve configured to move between a proximal position and a distal position relative to the window, wherein the inner sleeve has an outer surface having a first diameter;
an electrode element having a first polarity coupled to the inner sleeve and movable across the window between the proximal position and the distal position, wherein the electrode element has an outer surface having a second diameter less than the first diameter;
the outer sleeve serving as a return electrode having a second polarity opposite the first polarity; and
an insulative layer covering the inner sleeve proximal of the electrode element, wherein a portion of the insulative layer is exposed in the window in the distal position;
wherein the insulative layer extends distally beyond a distal end of the inner sleeve and covers at least a portion of the electrode element so that the insulative layer is bonded directly to the outer surface of the electrode element having the second diameter;
wherein the insulative layer is defined by a low-wear resistant material such that the insulative layer wears away from the inner sleeve to expose a portion of the inner sleeve to alter an electrical pathway between the electrode element and the return electrode to make the device non-operational.