Patent ID: 8894653

Claim:
A medical device, comprising: a guide tube having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end along a longitudinal axis of the guide tube, wherein the distal end includes an aperture having an elliptical shape angled from about 30 degrees to about 60 degrees relative to the longitudinal axis; and a tissue clamp including a monolithic tubular member having a distal region and a proximal region, wherein the proximal region is slidingly received in the lumen and the distal region has an upper member flexibly coupled to a stationary lower member, the upper member including a distal tip having a sharp edge angled towards the longitudinal axis and the lower member including a distal tip having a sharp edge fixed parallel to the longitudinal axis; and wherein, when the distal region is generally located outside of the lumen, the upper member is angled away from the longitudinal axis and the sharp edges of the upper and lower members are both positioned to at least partially cut tissue when the tissue clamp is moved along the longitudinal axis; and wherein, when the distal region is generally located within the lumen, the upper member is positioned generally parallel to the longitudinal axis and the sharp edges of the upper and lower members engage to generally close the aperture of the guide tube.