Abstract: A drive-enhanceable handheld advancer is provided for advancing an elongate device through a pathway defined in an advancer body that includes a rotatable manual thumbwheel partially embedded in the body for receiving a user-exerted manual control movement from a thumb, and a manual drive having a nip, a transmission, and a reverse clutch. The transmission operatively connects the thumbwheel to the nip for driving advancement, and the reverse clutch maintains a first interference grip connection between the nip and the elongate device. The manual control thumbwheel can move inward responsive to user-applied grip movements to increase grip with the elongate device. The reverse clutch applies augmented force from grip movements to the nip for increasing the grip drive connection, which can be applied at a different angle from the inward movements. The reverse clutch can include slotted pivot supports for the thumbwheel and drive rollers on the advancer body.

Abstract: A handheld advancer is provided for advancing an elongate device through a pathway defined in an advancer body and include a rotatable manual control partially embedded in the body to receive a user-exerted manual control movement from a thumb of a single hand that can hold and control the advancer and advancement. The advancer can include a manual drive arranged to convert torque applied by the thumb for a rotation arc distance into a translation drive force applied for translating the elongate device an advancement distance scaled at force factor and distance factor. The distance factor can be one or greater than one and translate the elongate device an amplified advancement distance compared with manual input. The advancer can include a nip having a pair of rollers extending into the pathway providing constant control and amplified translation via concave compressible surfaces forming continuous contact regions with the elongate device.

Abstract: A contained tissue extraction device for morcellating a tissue inside an intracorporeal cavity is disclosed. Particularly, the contained tissue extraction device includes serrated-blade wire segments that are sandwiched between an inner bag and an outer bag. The contained tissue extraction device may capture a target tissue such that a surgeon may pull the contained tissue extraction device taught through an incision that is smaller than the target tissue. The contained tissue extraction device allows a surgeon to morcellate the contained tissue by oscillating wire ends of the wire segments back and forth.

Abstract: A contained tissue extraction device for morcellating a tissue inside an intracorporeal cavity is disclosed. Particularly, the contained tissue extraction device includes serrated-blade wire segments that are sandwiched between an inner bag and an outer bag. The contained tissue extraction device may capture a target tissue such that a surgeon may pull the contained tissue extraction device taught through an incision that is smaller than the target tissue. The contained tissue extraction device allows a surgeon to morcellate the contained tissue by oscillating wire ends of the wire segments back and forth.

Abstract: Current density to copy substrates of varying widths if monitored and controlled in the electrostatic transfer unit of an electrostatic reproduction device. Current density through a copy substrate is appropriately adjusted to compensate for the presence of end leakage current effect to a receptor. Voltage supplied to a current generation unit in an electrostatic transfer unit is controlled independent of the characteristic properties of the copy substrate. Image reproduction quality is maintained in an electrostatic reproduction device even as the width of the copy substrate changes and in the presence of end leakage current effect.