A tissue therapy device, the device comprising: a sealing layer with a resealable interface, said resealable interface comprising: a base member attached to said esealing layer and comprising an aperture , and a cap member configured to form a complementary interfit with, and removably seal, the aperture of the base member , the cap member being secured to the base member by complementary threads in the cap member and base member , by a snapfit or by a latch, wherein the base member and the cap member form a sealed enclosure around an area of tissue; and a suction apparatus comprising: a body with a variable volume portion bounded by a rigid wall portion and a reciprocating mechanism having a plunger configured to sealably slide along the rigid wall portion, the reciprocating mechanism being attached to a handle for drawing the reciprocating mechanism back to generate reduced pressure in the variable volume portion; wherein the reciprocating mechanism is held in a withdrawn position within the rigid wall portion to create and maintain a negative pressure within the sealed enclosure, the reciprocating mechanism being held by interlocking teeth on a shaft of the reciprocating mechanism and the body . a sealing layer with a resealable interface, said resealable interface comprising: a base member attached to said esealing layer and comprising an aperture , and a cap member configured to form a complementary interfit with, and removably seal, the aperture of the base member , the cap member being secured to the base member by complementary threads in the cap member and base member , by a snapfit or by a latch, wherein the base member and the cap member form a sealed enclosure around an area of tissue; and a base member attached to said esealing layer and comprising an aperture , and a cap member configured to form a complementary interfit with, and removably seal, the aperture of the base member , the cap member being secured to the base member by complementary threads in the cap member and base member , by a snapfit or by a latch, wherein the base member and the cap member form a sealed enclosure around an area of tissue; and a suction apparatus comprising: a body with a variable volume portion bounded by a rigid wall portion and a reciprocating mechanism having a plunger configured to sealably slide along the rigid wall portion, the reciprocating mechanism being attached to a handle for drawing the reciprocating mechanism back to generate reduced pressure in the variable volume portion; wherein the reciprocating mechanism is held in a withdrawn position within the rigid wall portion to create and maintain a negative pressure within the sealed enclosure, the reciprocating mechanism being held by interlocking teeth on a shaft of the reciprocating mechanism and the body . a body with a variable volume portion bounded by a rigid wall portion and a reciprocating mechanism having a plunger configured to sealably slide along the rigid wall portion, the reciprocating mechanism being attached to a handle for drawing the reciprocating mechanism back to generate reduced pressure in the variable volume portion; wherein the reciprocating mechanism is held in a withdrawn position within the rigid wall portion to create and maintain a negative pressure within the sealed enclosure, the reciprocating mechanism being held by interlocking teeth on a shaft of the reciprocating mechanism and the body . <EOS>