Fluid collection systems

Abstract

Fluid collection systems having a canister, a lid, and a liner assembly are described. The liner assembly may include a liner and a fitment assembly. The fitment assembly may be connected to the liner by a gland. The fitment assembly may be held in place by at least one of any number of features, including a bracket or other fitment support connected to the canister and/or the lid, supports integrated into the fitment itself, a snapping mechanism, or a notch in one or more of the canister and the lid that supports the fitment.

1 . A fluid collection system comprising:
 a canister having a cavity and an open end;   a lid, the lid sealed with the open end of the canister when the fluid collection system is in a closed position; and   a fluid receptacle comprising a liner and a fitment assembly, the liner and the fitment assembly together defining a fluid chamber,   wherein the fitment assembly is sealed with the lid around an opening in the lid when the fluid collection system is in the closed position.   
     
     
         2 . The fluid collection system of  claim 1 , wherein the fitment assembly comprises a fitment having a fluid port which allows communication into the fluid chamber. 
     
     
         3 . The fluid collection system of  claim 2 , wherein the fitment is coupled to the liner. 
     
     
         4 . The fluid collection system of  claim 2 , wherein the fitment assembly further comprises a gland, and wherein the liner is coupled to the gland and the gland is coupled to the fitment. 
     
     
         5 . The fluid collection system of  claim 4 , wherein the canister, the lid, and the fluid receptacle together define an interstitial chamber, and wherein the gland comprises a fluid chamber vacuum port which allows communication between the fluid chamber and the interstitial chamber. 
     
     
         6 . The fluid collection system of  claim 2 , wherein the fitment assembly further comprises a removable cap which closes the fluid port. 
     
     
         7 . The fluid collection system of  claim 1 , wherein the fitment assembly comprises supports which rest on the canister near the open end when the fluid collection system is in the closed position. 
     
     
         8 . The fluid collection system of  claim 1 , further comprising a fitment support, wherein the fitment support rests on the canister near the open end and the fitment assembly rests on the fitment support when the fluid collection system is in the closed position. 
     
     
         9 . The fluid collection system of  claim 1 , wherein the fitment assembly is releasably securable to the lid by latches on one or more of the lid and the fitment assembly. 
     
     
         10 . The fluid collection system of  claim 1 , wherein the canister, the lid, and the fluid receptacle together define an interstitial chamber. 
     
     
         11 . The fluid collection system of  claim 10 , wherein the fitment assembly comprises a fluid chamber vacuum port which allows communication between the fluid chamber and the interstitial chamber. 
     
     
         12 . The fluid collection system of  claim 1 , wherein the lid is permanently connected to the canister, and wherein the lid is movable relative to the canister. 
     
     
         13 . A fluid receptacle for use in a fluid collection system including a canister having a lid, the fluid receptacle comprising:
 a liner having an opening; and   a fitment assembly comprising:
 a fluid port; 
 a fluid chamber vacuum port; and 
 a sealing surface, 
   wherein the fitment assembly is sealed to the liner around the opening;   wherein the liner and the fitment assembly together define a fluid chamber,   wherein the fluid port and the fluid chamber vacuum port allow communication into and out of the fluid chamber, and   wherein at least a portion of the sealing surface seals to the lid.   
     
     
         14 . The fluid receptacle of  claim 13 , wherein the sealing surface of the fitment assembly seals to both the lid and the canister. 
     
     
         15 . The fluid receptacle of  claim 13 , wherein the fitment assembly comprises a fitment and a gland, and wherein the liner is coupled to the gland and the gland is coupled to the fitment. 
     
     
         16 . The fluid receptacle of  claim 15 , wherein the gland is removably coupled to the fitment. 
     
     
         17 . The fluid receptacle of  claim 15 , wherein the fitment comprises the fluid port, and the gland comprises the fluid chamber vacuum port. 
     
     
         18 . The fluid receptacle of  claim 15 , wherein the gland comprises the sealing surface. 
     
     
         19 . The fluid receptacle of  claim 13 , wherein the fitment assembly comprises a fitment coupled to the liner. 
     
     
         20 . The fluid receptacle of  claim 19 , wherein the fitment comprises the fluid port and the fluid chamber vacuum port. 
     
     
         21 . The fluid receptacle of  claim 19 , wherein the fitment comprises the sealing surface. 
     
     
         22 . The fluid receptacle of  claim 13 , wherein the fitment assembly comprises supports which rest on the canister near the open end when the fitment assembly is positioned at a top end of the canister. 
     
     
         23 . The fluid receptacle of  claim 13 , wherein the fitment assembly comprises latches that engage with one or more of the canister and the lid. 
     
     
         24 . The fluid receptacle of  claim 13 , wherein the liner, when expanded, has a maximum perimeter that is larger than a perimeter of the opening in the liner, wherein the maximum perimeter of the liner is measured in a plane substantially perpendicular to the direction of gravity when the fluid receptacle is positioned in the canister. 
     
     
         25 . A fluid collection system comprising:
 a canister having a cavity and an open end;   a lid, the lid forming a seal with a portion of the open end of the canister when the fluid collection system is in a closed position; and   a fluid receptacle comprising a liner and a fitment assembly, the liner and fitment assembly together defining a fluid chamber,   wherein the lid and the open end of the canister define an aperture therebetween when the fluid collection system is in the closed position, and   wherein the fitment assembly seals around the aperture when the fluid collection system is in the closed position.   
     
     
         26 . The fluid collection system of  claim 25 , wherein the opening between the lid and the open end of the canister when the fluid collection system is in the closed position is formed at a notch in the open end of the canister.