Tensioned infusion systems with removable hubs

Abstract

Devices, kits and methods described herein are be used at chronic injection site or in conjunction with an indwelling catheter or cannula. A book-like packaging, applicator and/or tensioning device with an opening and optional indicia to align the catheter or cannula to the opening may be used to apply a dressing to a subject. The packaging, applicator and/or tensioning device may apply and/or maintain a strain in an elastic dressing.

1 . An integrated infusion set, comprising:
 an infusion assembly attached to an upper surface of the tension dressing layer, wherein the infusion assembly comprises:
 an infusion conduit configured for insertion into a treatment location and 
 a releasable attachment structure attaching the infusion hub to an upper surface of the tensioned dressing layer; 
 a pre-strained dressing, the pre-strained dressing comprising: 
 a tensioned dressing layer; 
 a skin adhesive on a lower surface of the tension dressing layer; 
 one or more adhesive protective liners removably covering the skin adhesive; 
 and 
 a tension support structure configured to maintain the tension dressing layer in a stressed configuration, the tension support structure comprising one or more pull tabs. 
   
     
     
         2 . The infusion set of  claim 1 , wherein the infusion assembly further comprises an infusion hub and an infusion housing attachable to the infusion hub, the infusion housing comprising tubing in fluid communication with a cavity of the infusion housing, wherein the cavity is configured to receive the infusion hub and to provide fluid communication between the tubing and the infusion conduit. 
     
     
         3 . The infusion set of  claim 2 , wherein the infusion conduit is an infusion needle or infusion catheter. 
     
     
         4 . The infusion set of  claim 2 , further comprising an infusion set applicator releasably attachable to the infusion hub and further comprising a needle configured to removably extend through the infusion hub and out of a distal end of the infusion conduit. 
     
     
         5 . The infusion set of  claim 1 , wherein the releasable attachment structure comprises a removable section to which the infusion hub is attached. 
     
     
         6 . The infusion set of  claim 5 , wherein the releasable attachment structure comprises two or more non-removable sections coupled to the removable section. 
     
     
         7 . The infusion set of  claim 6 , wherein the two or more non-removable sections coupled to the removable section are coupled via a tear or frangible structure. 
     
     
         8 . The infusion set of  claim 7 , wherein the tear structure comprises a plurality of perforations. 
     
     
         9 . The infusion set of  claim 7 , wherein the frangible structure comprises a frangible strut. 
     
     
         10 . The infusion of  claim 5 , wherein the removable section comprises a pull tab or handle. 
     
     
         11 . The infusion set of  claim 7 , wherein the non-removable sections comprises a split ring or plurality of arcuate bodies attached to the tensioned dressing layer. 
     
     
         12 . The infusion set of  claim 5 , wherein the non-removable sections comprise slots configured to movably receive tabs located on the removable section. 
     
     
         13 . The infusion set of  claim 12 , wherein the removable section is integrally formed with the infusion hub. 
     
     
         14 . The infusion set of  claim 12 , wherein the slots are arcuate slots. 
     
     
         15 . The infusion set of  claim 2 , wherein the infusion hub further comprises a hub body and a hub base, and wherein the hub body is releasably attachable to the hub base, and the hub base is attached to the tensioned dressing layer. 
     
     
         16 . The infusion set of  claim 15 , wherein the hub body comprises a releasable latch. 
     
     
         17 . The infusion set of  claim 15 , further comprising a removal tool, the removal tool configured to actuate the releasable latch of the hub body and to facilitate separation of the hub body from the hub base. 
     
     
         18 . The infusion set of  claim 15 , wherein the hub base comprises a softer material than the hub body. 
     
     
         19 . The infusion set of  claim 17 , wherein the removal tool comprises prongs with tabs, wherein the prongs are configured to actuate the releasable latch of the hub body, and the tabs of the prongs are configured to lock to the hub body. 
     
     
         20 . The infusion set of  claim 19 , wherein the hub body comprises access channels to the release latch which configured to receive the prongs with tabs. 
     
     
         21 . The infusion set of  claim 2 , wherein the infusion housing comprises a release latch configured to unlock the infusion housing from the infusion hub.