| 摘要 |
A tissue removal device is disclosed which includes an elongate shaft having a distal end and a proximal end, wherein the elongate shaft defines a longitudinal axis, a bag support defining an opening, the bag support being collapsible and expandable to open and close the opening, a bag operatively attached to the bag support, the bag having an open first end operatively secured to the bag support and a closed end, the first end being connected to the support so that when the bag support is in the collapsed position the bag opening is substantially closed, the bag having folds including at least one transverse fold. The tissue removal device may further include a tube for receiving the shaft, bag support and bag. |
| 主权项 |
1. A tissue removal device, comprising:
an elongate member having a distal end and a proximal end with a longitudinal axis defined therebetween, the elongate member defining a bag storage cavity therein with an opening at the distal end; a shaft including a control portion and being movable coaxially within the elongate member via the control portion from a retracted position to an advanced position; an expandable bag support operatively attached to the shaft and configured and dimensioned to be positioned completely within the elongate member when the shaft is in the retracted position and to move into an expanded position when the shaft is in the advanced position; and a bag operatively supported by the expandable bag support, the bag defining an opening adjacent the expandable bag support and tapering to a closed end, said bag being rolled onto itself and being disposed completely within the bag storage cavity of the elongate member when the shaft is in the retracted position, such that at least the closed end of the bag extends distally beyond the expandable bag support. |
