Systems and methods for tissue capture and removal
Components, systems and kits for capturing and removing tissue from mammalian bodies include a tissue container that may be introduced into a body cavity and within which a tissue specimen may be placed, cut and removed from the body cavity. Methods of using these components, systems and kits are also described.
1. A method of capturing and removing tissue transvaginally, comprising:
introducing at least a portion of a tissue container that comprises an interior volume and a composite multiple layer structure that includes a watertight layer and a reinforcement member which is resistant to cutting or puncturing into a patient's pelvic cavity through the patient's vagina;
placing a tissue specimen into the interior volume of the tissue container;
removing a portion of the tissue container from the pelvic cavity through the vagina such that an edge defining an opening in the tissue container is outside the vagina;
introducing a distal end of a cannula into the interior volume of the tissue container;
introducing a tissue cutter into the interior volume of the tissue container through a central lumen of the cannula;
cutting at least a portion of the tissue specimen with a cutter blade of the tissue cutter; and
removing the tissue specimen from the container interior and out of vagina through a central lumen of the cutter.
2. The method of claim 1 further comprising applying tension to at least a portion of the tissue container from a position outside the pelvic cavity so as to bring the tissue specimen into close proximity with the cutter blade prior to or concurrently with cutting the at least one portion of the tissue specimen.
3. The method of claim 2 wherein applying tension to at least a portion of the tissue container comprises physically applying tension on the tissue container with the hand of an operator.
4. The method of claim 2 wherein applying tension to at least a portion of the tissue container comprises pulling on one or more tethers attached to the tissue container.
5. The method of claim 2 wherein applying tension to at least a portion of the tissue container comprises applying a twisting motion the tissue container and wherein the twisting motion shortens an axial length of the tissue container.
6. The method of claim 2 wherein applying tension to at least a portion of the tissue container comprises rolling an edge of the tissue container.
7. The method of claim 1 wherein cutting at least a portion of the tissue specimen with the cutter blade comprises rotating the cutter blade.
8. The method of claim 1 further comprising introducing a tissue grasper at least partially into the interior volume of the tissue container through the central lumen of the tissue cutter and grasping at least a portion of the tissue specimen.
9. The method of claim 8 wherein removing the tissue specimen from the interior volume and out of vagina through the central lumen of the tissue cutter comprises drawing the tissue specimen into contact with the cutter blade of the tissue cutter during tissue cutting.
10. The method of claim 1 wherein introducing at least a portion of the tissue container into the patient's pelvic cavity through the patient's vagina comprises introducing a tissue container wherein the reinforcement member includes metal wires.
11. The method of claim 1 wherein introducing at least a portion of the tissue container into the patient's pelvic cavity through the patient's vagina comprises introducing a tissue container wherein the reinforcement member includes a metal mesh.
12. The method of claim 1 wherein introducing at least a portion of the tissue container into the patient's pelvic cavity through the patient's vagina comprises introducing a tissue container wherein the reinforcement member includes a series of metallic linkages.
13. The method of claim 1 wherein introducing at least a portion of the tissue container into the patient's pelvic cavity through the patient's vagina comprises introducing a tissue container wherein the reinforcement member has a thickness of about 0.1 mm to about 4.0 mm.
14. The method of claim 1 wherein introducing at least a portion of the tissue container into the patient's pelvic cavity through the patient's vagina comprises introducing a tissue container comprising a bi-layer structure.
15. The method of claim 1 wherein introducing at least a portion of the tissue container into the patient's pelvic cavity through the patient's vagina comprises introducing a tissue container which is impermeable to the transmission or leakage of biological cells.