Abstract: An endoscopic tissue resecting system that includes a reciprocating rotary surgical instrument for cutting tissue that includes a planetary gear assembly to vary rotational speed. A method of cutting and detaching tissue includes positioning an outer member such that tissue is located within a window in the outer member, engaging the tissue with an inner member, and simultaneously rotating at an increased speed relative to a rotary driver and translating the inner member to cut the tissue. A tangential cutting force is applied to the tissue with the inner member to mechanically cut and detach the tissue.

Abstract: An endoscopic tissue resecting system that includes a reciprocating rotary surgical instrument for cutting tissue that includes a planetary gear assembly to vary rotational speed. A method of cutting and detaching tissue includes positioning an outer member such that tissue is located within a window in the outer member, engaging the tissue with an inner member, and simultaneously rotating at an increased speed relative to a rotary driver and translating the inner member to cut the tissue. A tangential cutting force is applied to the tissue with the inner member to mechanically cut and detach the tissue.

Abstract: An endoscopic tissue resecting system that includes a reciprocating rotary surgical instrument for cutting tissue that includes a planetary gear assembly to vary rotational speed. A method of cutting and detaching tissue includes positioning an outer member such that tissue is located within a window in the outer member, engaging the tissue with an inner member, and simultaneously rotating at an increased speed relative to a rotary driver and translating the inner member to cut the tissue. A tangential cutting force is applied to the tissue with the inner member to mechanically cut and detach the tissue.

Abstract: Systems and methods herein are associated with a handpiece, a drive hub, a drive coupler, and an instrument comprising an elongate shaft and resection member telescoped within the elongate shaft, the resection member coupled to the drive hub. The drive hub comprises an interior surface and an exterior surface, the interior surface defines a cross-sectional shape, and the drive hub is coupled to a drive shaft of a motor of the handpiece. The drive coupler comprises a first lobe extending radially from a central axis of the drive coupler, the drive coupler is telescoped at least partially within the drive hub such that the first lobe that engages with a portion of the cross-sectional shape.

Abstract: An endoscopic tissue resecting system that includes a reciprocating rotary surgical instrument for cutting tissue that includes a planetary gear assembly to vary rotational speed. A method of cutting and detaching tissue includes positioning an outer member such that tissue is located within a window in the outer member, engaging the tissue with an inner member, and simultaneously rotating at an increased speed relative to a rotary driver and translating the inner member to cut the tissue. A tangential cutting force is applied to the tissue with the inner member to mechanically cut and detach the tissue.

Abstract: Surgical systems include a handheld surgical device having an end effector and a drive assembly configured to drive the end effector, a foot pedal configured to receive input mechanical energy from a user and to output mechanical energy, and a converter. In systems, the drive assembly is an electrically-powered drive assembly and converter is configured to receive the output mechanical energy from the foot pedal and to output electrical energy to the electrically-powered drive assembly. In other systems, the drive assembly is mechanically-powered and the converter is configured to receive the output mechanical energy from the foot pedal and to output a different mechanical energy to the mechanically-powered drive assembly.

Abstract: Systems and methods herein are associated with a handpiece, a drive hub, a drive coupler, and an instrument comprising an elongate shaft and resection member telescoped within the elongate shaft, the resection member coupled to the drive hub. The drive hub comprises an interior surface and an exterior surface, the interior surface defines a cross-sectional shape, and the drive hub is coupled to a drive shaft of a motor of the handpiece. The drive coupler comprises a first lobe extending radially from a central axis of the drive coupler, the drive coupler is telescoped at least partially within the drive hub such that the first lobe that engages with a portion of the cross-sectional shape.

Abstract: An endoscopic tissue resecting system that includes a reciprocating rotary surgical instrument for cutting tissue that includes a planetary gear assembly to vary rotational speed. A method of cutting and detaching tissue includes positioning an outer member such that tissue is located within a window in the outer member, engaging the tissue with an inner member, and simultaneously rotating at an increased speed relative to a rotary driver and translating the inner member to cut the tissue. A tangential cutting force is applied to the tissue with the inner member to mechanically cut and detach the tissue.

Abstract: A transparent portable warming device to insure normothermia during medical transport, particularly for transporting pediatric patients and infants is disclosed. The warming device includes a one or more layers of a thin, flexible, transparent material. A heating element includes a parallel circuit of resistive wires controlled by a battery-powered power controller. The controller maintains the temperature of the blanket at a predetermined temperature level for periods of time suitable for transporting patients. In one embodiment, the resistive wires are nichrome, and the flexible material comprises polyvinylchloride. The system can be powered by a lightweight twelve volt battery.