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 method of removing tissue, comprising the steps of:
providing a tissue removal device having a tubular element, a transport element, a tissue handling element, and a cutting element, the tubular element having an open end at a distal end, the transport element and the cutting element being positioned at least partially within the tubular element and being movable within the tubular element, the tissue removal device also having a tissue chamber;
introducing the device into a patient; advancing the tubular element in a distal direction so that tissue enters the tubular element through the open end, the tubular element being advanced so that tissue also enters the transport element;
cutting the tissue which has entered the open end by moving the cutting element from a stored position to a cutting position, the cutting element separating the tissue which has entered the open end from the surrounding tissue to form a first tissue mass;
transporting the first tissue mass proximally with the transport element toward the tissue chamber;
transferring the tissue from the tissue transport element to the tissue handling element;
making the first tissue mass visible to a user when the first tissue mass is held by the tissue handling element; and
delivering the first tissue mass to the tissue chamber from the tissue handling element after making the first tissue mass visible to the user, wherein the tissue chamber contains the first tissue mass and previously collected tissue masses upon delivery of the first mass to the tissue chamber.
2. The method of claim 1 , wherein:
the providing step is carried out with 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.
3. The method of claim 2 , further comprising the steps of:
positioning the first and second parts adjacent to the transport element and moving the first and second parts toward one another so that the tissue transport element is at least partially surrounded by the first and second parts.
4. The method of claim 3 , wherein:
the transferring step is carried out by withdrawing the transport element after the moving step so that the first tissue mass is held by the first and second parts when the transport element is withdrawn.
5. The method of claim 2 , wherein:
the providing step is carried out with the first and second parts being pivotably coupled to a support member;
the moving step being carried out with the first and second parts pivoting relative to the support member.
6. The method of claim 1 , further comprising the step of:
storing the first tissue mass in the tissue chamber by moving the first tissue mass from the tissue handling element to a tissue chamber.
7. The method of claim 1 , wherein:
the providing step is carried out with the transport element also having an open end positioned proximal to the open end of the tubular element; and
the advancing step is carried out with the tissue entering the transport element through the open end of the transport element.
8. The method of claim 1 , wherein: the
transporting step is carried out with the cutting element being in the cutting position and moving proximally with the transport element when transporting the first tissue mass to the tissue chamber.
9. The method of claim 1 , wherein:
the transporting step is carried out with the distal end of the tubular element remaining within the patient, the distal end of the transport element moving to a position outside the patient when transporting the first tissue mass to the tissue chamber.
10. The method of claim 1 , wherein:
the advancing step is carried out with the cutting element being in the stored position, the cutting element being positioned between the tubular element and the transport element when in the stored position.
11. The method of claim 1 , wherein:
the cutting step is carried out with at least one of the tubular element, the transport element and the cutting element rotating about a longitudinal axis of the tubular element.
12. The method of claim 1 , wherein:
the cutting step is carried out with the cutting element rotating about the longitudinal axis when cutting the tissue.