Abstract: A system for resecting tissue includes a loop structure configured for cutting tissue, at least a portion of the loop structure formed by an elongate structure having a first end and a second end, wherein a length of the loop structure is adjustable by positioning the first end relative to the second end, wherein a first portion of the loop structure comprises a first electrode, and a second portion of the loop structure comprises a second electrode. A system for resecting tissue includes a loop structure configured for cutting tissue, the loop structure formed by an elongate structure having a first end and a second end, wherein a length of the loop structure is adjustable by positioning the first end relative to the second end, and a support structure coupled to a portion of the elongate structure and having a surface for contacting tissue.

Abstract: A device for providing access to an implantable fluid transfer port, comprises a needle extending to a distal end insertable into body to enter a reservoir of a port implanted therein and an actuation member extending through a lumen of the needle from an actuator which remains external to a living body accessible to a user thereof in combination with an obturator coupled to a distal end of the actuation member, an outer diameter of the obturator substantially matching an inner diameter of the lumen of the needle so that, when retracted into the lumen, the obturator seals a distal opening thereof and an anchoring mechanism coupled to the actuation member proximally of the obturator, the anchoring mechanism being moved to an expanded state in which an outer diameter of the anchoring mechanism exceeds an outer diameter of the needle when moved out of the lumen of the needle.