Abstract: Systems and methods to perfuse isolated tissue are provided to avoid ischemia-related tissue damage over an extended perfusion time is provided. A system can comprise a reservoir sized and dimensioned to contain a perfusate. A perfusion supply line can comprise a pump, a cooling system, an oxygenator, and at least one filter. The perfusion supply line can be in fluid communication with the reservoir to draw the perfusate from the reservoir and cool and oxygenate the perfusate. The system can also include an arterial line in fluid communication with the perfusion supply line to direct perfusate from the reservoir to the isolated tissue. A venous outflow can be in fluid communication with the isolated tissue to remove the perfusate from the isolated tissue. A perfusion return line can be in fluid communication with the venous outflow to return the perfusate from the isolated tissue to the reservoir.

Abstract: This disclosure relates to swellable needles that include a proximal end portion and a swellable distal end portion. Upon exposure to a liquid, the needles are configured to undergo a shape change from a first configuration in which the width of the needle is tapered from the proximal end portion to the distal end portion to a second configuration in which the distal end portion is more swollen than the proximal end portion. The swellable needles can be double layer swellable needles or single material swellable needles.

Abstract: Systems and methods to perfuse isolated tissue are provided to avoid ischemia-related tissue damage over an extended perfusion time is provided. A system can comprise a reservoir sized and dimensioned to contain a perfusate. A perfusion supply line can comprise a pump, a cooling system, an oxygenator, and at least one filter. The perfusion supply line can be in fluid communication with the reservoir to draw the perfusate from the reservoir and cool and oxygenate the perfusate. The system can also include an arterial line in fluid communication with the perfusion supply line to direct perfusate from the reservoir to the isolated tissue. A venous outflow can be in fluid communication with the isolated tissue to remove the perfusate from the isolated tissue. A perfusion return line can be in fluid communication with the venous outflow to return the perfusate from the isolated tissue to the reservoir.

Abstract: A system and method for holding a cutting tool at a predetermined distance from a defined cutting surface to prepare a tissue flap of substantially uniform thickness for optimal viability. A tissue holder plate having a vacuum chamber is provided to stabilize the tissue mass, and a cutting tool holder and guide plate restrict the movement of the cutting tool with respect to the tissue holder plate.

Abstract: This disclosure relates to swellable needles that include a proximal end portion and a swellable distal end portion. Upon exposure to a liquid, the needles are configured to undergo a shape change from a first configuration in which the width of the needle is tapered from the proximal end portion to the distal end portion to a second configuration in which the distal end portion is more swollen than the proximal end portion. The swellable needles can be double layer swellable needles or single material swellable needles.

Abstract: This disclosure relates to swellable needles that include a proximal end portion and a swellable distal end portion. Upon exposure to a liquid, the needles are configured to undergo a shape change from a first configuration in which the width of the needle is tapered from the proximal end portion to the distal end portion to a second configuration in which the distal end portion is more swollen than the proximal end portion. The swellable needles can be double layer swellable needles or single material swellable needles.

Abstract: A system and method for holding a cutting tool at a predetermined distance from a defined cutting surface to prepare a tissue flap of substantially uniform thickness for optimal viability. A tissue holder plate having a vacuum chamber is provided to stabilize the tissue mass, and a cutting tool holder and guide plate restrict the movement of the cutting tool with respect to the tissue holder plate.

Abstract: A system and method for holding a cutting tool at a predetermined distance from a defined cutting surface to prepare a tissue flap of substantially uniform thickness for optimal viability. A tissue holder plate having a vacuum chamber is provided to stabilize the tissue mass, and a cutting tool holder and guide plate restrict the movement of the cutting tool with respect to the tissue holder plate.

Abstract: A system and method for holding a cutting tool at a predetermined distance from a defined cutting surface to prepare a tissue flap of substantially uniform thickness for optimal viability. A tissue holder plate having a vacuum chamber is provided to stabilize the tissue mass, and a cutting tool holder and guide plate restrict the movement of the cutting tool with respect to the tissue holder plate.

Abstract: This disclosure relates to swellable needles that include a proximal end portion and a swellable distal end portion. Upon exposure to a liquid, the needles are configured to undergo a shape change from a first configuration in which the width of the needle is tapered from the proximal end portion to the distal end portion to a second configuration in which the distal end portion is more swollen than the proximal end portion. The swellable needles can be double layer swellable needles or single material swellable needles.