Methods and devices for removing tissue from a patient and placing a marker in the patient
View Patent ↗The device is used to remove tissue from a patient and to also place a marker in the patient. The device has an opening through which tissue enters the device. The tissue which enters the opening is cut and the tissue is removed. The device may be used a number of times to remove a number of tissue masses. The device also includes a marker which the user may release in the patient at the desired time.
1. A device for removing tissue from a patient, comprising:
a body;
a tubular element coupled to the body and having an open end at a distal end, the tubular element defining a longitudinal axis, the tubular element being longitudinally movable relative to the body to an extended position, the tubular element configured to be driven into tissue to receive tissue through the open end when moving to the extended position;
a tissue chamber coupled to the body;
a transport element coupled to the body and being longitudinally movable relative to the tubular element, the transport element configured to contact the tissue which has entered the tubular element through the open end of the tubular element;
a tissue handling element which is configured to receive the tissue from the transport element, the tissue handling element having a first part and a second part, the first and second parts being movable toward and away from the transport element, the first and second parts are movable toward one another and configured so that the tissue element is at least partially surrounded by the first and second parts; and
a cutting element movable between a stored position and a cutting position, the cutting element moving toward the longitudinal axis when moving from the stored position to the cutting position.
2. The device of claim 1 , wherein:
the tissue handling element is configured to receive the tissue from the transport element and display the tissue to the user.
3. The device of claim 1 , wherein:
the transport element is withdrawn after the first and second parts are at least partially surrounding the transport element, wherein withdrawal of the transport element is configured to transfer the tissue from the transport element to the tissue handling element.
4. The device of claim 1 , wherein:
the first and second parts are pivotably coupled to a support member, the first and second parts pivoting relative to one another when moving to at least partially surround the transport element.
5. The device of claim 1 , wherein:
the transport element is movably coupled to the tubular element so that the transport element is advanced distally together with the tubular element when the tubular element moves to the extended position.
6. The device of claim 1 , wherein:
the transport element also has an open end positioned proximal to the open end of the tubular element.
7. The device of claim 1 , wherein:
the cutting element is also longitudinally movable within the tubular element, the cutting element remaining in the cutting position and moving proximally with the transport element when the transport element moves proximally toward the tissue chamber.
8. The device of claim 1 , wherein:
the cutting element is positioned in an annular space between the tubular element and the transport element when in the stored position.
9. The device of claim 1 , wherein:
at least one of the cutting element, the transport element and the tubular element rotate about the longitudinal axis when the cutting element moves from the stored position to the cutting position.
10. The device of claim 1 , wherein:
the transport element has a sharp tip configured to penetrate the tissue being removed.
11. The device of claim 1 , further comprising:
an introducer having a distal tip, the introducer being movable from an advancing position to a stored position, the distal tip extending beyond the open end of the tubular element when in the advancing position.
12. A device for removing tissue from a patient, comprising:
a body;
a tubular element coupled to the body and having an open end at a distal end, the tubular element defining a longitudinal axis, the tubular element being longitudinally movable relative to the body to an extended position, the tubular element configured to be driven into tissue to receive tissue through the open end when moving to the extended position;
a tissue chamber coupled to the body;
a transport element coupled to the body and being longitudinally movable relative to the tubular element, the transport element configured to contact the tissue which has entered the tubular element through the open end of the tubular element;
a tissue handling element configured to receive the tissue from the transport element, the tissue handling element having a first part and a second part, the first and second parts being movable toward and away from the transport element, the first and second parts are pivotably coupled to a support member, the first and second parts pivoting relative to one another when moving to at least partially surround the transport element; and
a cutting element movable between a stored position and a cutting position, the cutting element moving toward the longitudinal axis when moving from the stored position to the cutting position.