Anatomical location markers and methods of use in positioning sheet-like materials during surgery

A tissue position marker assembly comprising:

• a tissue marker including an elongate shaft defining a longitudinal direction having a plurality of flexible arms projecting outward from the shaft proximate a distal end thereof substantially perpendicular to the longitudinal direction;
• a delivery sleeve having a lumen therethrough, wherein the tissue marker is slidably disposed within the lumen of the delivery sleeve to constrain the arms to extend generally longitudinally and fit therein;
• and,
• a proximal handle coupled to the tissue marker and delivery sleeve, wherein the proximal handle includes a first portion secured to the proximal end of the delivery sleeve and a second portion secured to the elongate shaft of the tissue marker;
• wherein the first portion of the proximal handle includes a bore extending from a proximal end of the first portion to a distal end of the first portion for slidably receiving a portion of the elongate shaft of the tissue marker therethrough;
• wherein a portion of the bore between the proximal and distal ends of the first portion of the proximal handle opens out to a side of the first portion of the proximal handle;
• wherein a coupling is included between the first portion and the second portion to couple the first and second portions of the proximal handle together;
• wherein a portion of the elongate shaft of the tissue marker extending between the proximal end of the first portion of the proximal handle and the distal end of the first portion of the proximal handle is uncovered by the first portion of the proximal handle with the first portion and the second portion of the proximal handle coupled together.