GRAFT TENSIONING METHODS
A graft tensioning device comprising a basin capable of containing a fluid, a heating element capable of heating the fluid to an appropriate temperature, a tray disposed within the basin, and a graft holding fixture for maintaining a tissue graft in tension, permanently or removably secured to the tray, wherein the graft holding fixture and tissue graft may be submersed within the fluid. The device may further comprise a base, a shelf and/or a cover. The device may be reusable, disposable or some combination thereof.
1 . A method of conditioning a tissue graft prior to implantation, comprising:
using a basin filled with warm fluid;
securing a tissue graft to a graft hook within the basin; and
securing the tissue graft to a graft tensioner within the basin, and
wherein after securing the tissue graft to the graft hook and to the graft tensioner, the tissue graft is submerged within the warm fluid of the basin.
2 . The method of claim 1 , wherein the graft tensioner comprises a linear elastic element that applies tension to the tissue graft.
3 . The method of claim 1 , further comprising securing a weight to the graft tensioner such that the weight applies tension to the tissue graft.
4 . The method of claim 1 , further comprising placing a tube sizer around the tissue graft before submerging the tissue graft in the warm fluid, wherein the tube sizer controls expansion of the graft.
5 . The method of claim 1 , further comprising heating fluid within the basin to produce the warm fluid.
6 . The method of claim 5 , wherein heating fluid within the basin comprises activating a heating element that is secured within the basin to heat fluid within the basin.
7 . The method of claim 6 , wherein the heating element is permanently secured within the basin.
8 . The method of claim 6 , wherein the heating element heats the fluid within the basin to about body temperature.
9 . The method of claim 6 , further comprising removably securing the graft hook and the graft tensioner to a tray, wherein the tray is selectively removable from the basin.
10 . The method of claim 9 , wherein the tray defines a plurality of perforations, and wherein removably securing the graft hook and the graft tensioner to the tray comprises selectively engaging at least one perforation of the tray with at least one of the graft hook and the graft tensioner.
11 . The method of claim 9 , wherein each of the graft hook and the graft tensioner further comprises a base, a graft securing element, and an attachment mechanism, and wherein removably securing the graft hook and the graft tensioner to the tray comprises using the attachment mechanism to secure the respective graft hook and graft tensioner to the tray.
12 . The method of claim 1 , further comprising adjusting a distance between the graft hook and the graft tensioner to account for graft size variations.
13 . The method of claim 1 , wherein the tissue graft is a bone-tendon-bone graft.
14 . The method of claim 1 , wherein the warm fluid is a sterile saline solution.
15 . The method of claim 1 , wherein the warm fluid is an antibiotic rinse solution.
16 . The method of claim 2 , further comprising using a latching mechanism to maintain the linear elastic element in an extended position before the tissue graft is secured to the graft tensioner.
17 . The method of claim 16 , further comprising releasing the latching mechanism when the tissue graft is secured to the graft tensioner, thereby permitting application of tension to the tissue graft by the graft tensioner.
18 . The method of claim 9 , further comprising, before the graft hook and the graft tensioner are secured to the tray, positioning the tray in an elevated position relative to the fluid within the basin, wherein the graft hook and the graft tensioner are secured to the tray when the tray is in the elevated position, and wherein the tissue graft is secured to the graft hook and to the graft tensioner when the tray is in the elevated position.
19 . The method of claim 18 , wherein positioning the tray in the elevated position comprises resting the tray on a shelf defined by the tray.
20 . The method of claim 18 , further comprising lowering the tray into the fluid within the basin.