Punch biopsy tool with transverse cutter and angular adjustment

A punch biopsy tool comprising:

• an upper housing;
• an intermediate housing;
• a lower housing, wherein the upper housing, the intermediate housing, and the lower housing form an outer housing;
• an upper shaft member axially movable within the upper housing;
• means for moving the upper shaft member axially within the upper housing;
• an intermediate linkage member having an upper end pivotally connected to a lower end of the upper shaft member;
• a lower linkage member having an upper end pivotally connected to a lower end of the intermediate linkage member, wherein the intermediate linkage member and the lower linkage member are positioned within the outer housing;
• a circular cutter attached to the lower housing, wherein the circular cutter is configured to make a circular cut;
• and
• a transverse cutter joined to the lower linkage member and pivotally connected to the lower housing within the circular cutter.

A punch biopsy tool comprising:

• an upper housing;
• an upper shaft member axially movable within the upper housing;
• a lower housing, wherein the upper housing and the lower housing form an outer housing;
• an intermediate linkage member having an upper end pivotally connected to a lower end of the upper shaft member;
• a lower linkage member having an upper end pivotally connected to a lower end of the intermediate linkage member, wherein the intermediate linkage member and the lower linkage member are positioned within the outer housing;
• a circular cutter attached to the lower housing, wherein the circular cutter is configured to make a circular cut;
• a transverse cutter pivotally attached within the lower housing and circular cutter;
• mechanical means for actuating the transverse cutter;
• and
• wherein the upper housing is positioned in a fixed predetermined slanted orientation relative to the lower housing.