Methods and devices for removing tissue from a patient
AssigneeDarren Bechtel
InventorsJames W. Vetter, Ary S. Chememorsky, Chirstopher Daniel, Mark J. Clifford, Scott C. Anderson
Life of this patent
Estimating the term…
Abstract
The present invention is directed to tissue removal devices and methods. A tubular element having an open distal end is advanced into tissue so that tissue enters the tubular element. The tissue, which entered the tubular element is cut to separate the tissue from the surrounding tissue. The tissue is then transported proximally by the cutting element or a separate transport element.
Claims25
1-55. (canceled)
A method of removing tissue from a patient, comprising the steps of:
- providing a tissue removing device including a tubular element and a transport element, the tubular element having an open distal end and a longitudinal axis defining a longitudinal direction, the transport element being movable relative to the tubular element;
- introducing the tubular element into a patient;
- advancing the tubular element distally so that tissue enters the open end;
- separating the tissue which entered the open end from the surrounding tissue to form a first tissue mass;
- and
- piercing the first tissue mass with the transport element;
- and
- transporting the first tissue proximally away from the open end with the transport element.
A method of removing tissue from a patient, comprising the steps of:
- providing a tissue removing device including a tubular element having an open end, the tubular element having an interior wall which surrounds a chamber, the tubular element having a longitudinal axis, the tissue removing device also having a cutting element movable within the tubular element, the cutting element having a first part and a second part, at least one of the first and second parts sliding along the interior wall of the tubular element;
- introducing the tubular element into a patient;
- advancing the tubular element distally so that tissue enters the open end;
- cutting the tissue which has entered the open end from the surrounding tissue with the cutting element to form a first tissue mass, the cutting element moving toward the open end so that the at least one of the first and second parts slides along the interior wall and is deflected inwardly by the interior wall of the tubular element toward the other part.
A method of removing tissue from a patient, comprising the steps of:
- providing a tissue removing device having a body, a cutting element, and a tubular element having a longitudinal axis, the tubular element having an open distal end and being movable distally relative the body, the cutting element being movable from a stored position to a cutting position, the cutting element moving toward the longitudinal axis when moving from the stored position toward the cutting position;
- introducing the tissue removing device into a patient;
- advancing the tubular element into tissue so that tissue enters the open distal end;
- moving the cutting element from the stored position toward the cutting position;
- and
- rotating the tubular element during the moving step.
A method of removing tissue from a patient, comprising the steps of:
- providing a tissue removing device having a body, and a tubular element having a longitudinal axis and an open distal end, the tubular element being movable distally relative the body, the tissue removing device also having an introducer positioned within the tubular element;
- introducing the tissue removing device into a patient;
- withdrawing the introducer to expose the open distal end;
- and
- advancing the tubular element into tissue so that tissue enters the open distal end after at least initiating the withdrawing step.
79-83. (canceled)
Dependencies are inferred from the claim text.