Method and apparatus for taking a biopsy
AssigneeRegents of the University of Minnesota
InventorsCharles L. Truwit, Randal Nelson
Life of this patent
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Abstract
There is described method and apparatus for taking a biopsy wherein the apparatus is formed of a biocompatible cylindrical member with an outer wall and a hollow core, the cylindrical member having a longitudinal axis. An opening in the outer wall of the member is provided and a cutting device cuts tissue entering the opening as it travels along the opening. Cut tissue is treated with a coagulating agent or member so that the coagulation occurs concurrently or just after the tissue is cut wherein the coagulation occurs at a trailing edge of the opening as it travels.
Claims6
Apparatus comprising:
- a cylindrical introducer member with an outer wall and a hollow core, the cylindrical member having a longitudinal axis and an opening along a side;
- and
- a hollow tube slidable in the hollow core with a hollow tube opening about the size of the opening and a cutting wire positioned on one end of the hollow tube opening.
Apparatus comprising:
- a cylindrical introducer member with an outer wall and a hollow core, the cylindrical member having a longitudinal axis and an opening along a side;
- and
- a hollow tube slidable in the hollow core with a hollow tube opening about the size of the opening and a cutting wire positioned at an end of the hollow tube and forming an edge of the hollow tube opening.
Dependencies are inferred from the claim text.