Devices and methods for fluid transfer through a placed peripheral intravenous catheter

Abstract

An apparatus includes a catheter, an introducer, and an actuator. A distal end portion of the introducer is configured to couple to an indwelling peripheral intravenous line. The actuator is movably coupled to the introducer and is configured to move the catheter between a first position, in which the catheter is disposed within the introducer, and a second position, in which a distal end portion of the catheter is distal to the introducer. A first portion of the actuator is disposed outside of the introducer and in contact with an outer surface of the introducer such that (1) a longitudinal axis defined by a second portion of the actuator is nonparallel to a longitudinal axis defined by the introducer and (2) the second portion of the actuator exerts a force on a proximal end portion of the catheter operable to increase an internal stress within a portion of the catheter.

1 .- 22 . (canceled) 
     
     
         23 . An extension set for facilitating device delivery through a peripheral intravenous access device (PIV) at least partially inserted into a vein of a patient, the extension set comprising:
 a distal end portion including a distal connector and a guide having a blunt distal end, the distal connector configured to couple to a proximal end portion of the PIV; and   a proximal end portion including a proximal connector.   
     
     
         24 . The extension set of  claim 23 , further comprising:
 a tubing disposed between the distal connector and the proximal connector.   
     
     
         25 . The extension set of  claim 23 , wherein the distal connector includes a distally-extending arm that contacts an outer surface of the PIV to lock the extension set to the PIV. 
     
     
         26 . The extension set of  claim 23 , further comprising:
 a support coupleable to the distal connector and configured to contact skin of the patient and stabilize the extension set against the skin of the patient.   
     
     
         27 . The extension set of  claim 23 , wherein the guide is constructed of plastic or metal. 
     
     
         28 . The extension set of  claim 23 , wherein the distal connector is a non-luer connector. 
     
     
         29 . The extension set of  claim 23 , wherein the proximal connector includes a seal. 
     
     
         30 . The extension set of  claim 23 , wherein at least one of the distal end portion or the proximal end portion includes a one-way valve. 
     
     
         31 . The extension set of  claim 23 , wherein the proximal connector is configured to be coupled to a distal end portion of a fluid transfer device, the fluid transfer device having a first configuration in which a catheter of the fluid transfer device is disposed within an introducer of the fluid transfer device and proximal to the extension set, and a second configuration in which the catheter extends from the introducer such that at least a portion of the catheter extends through the extension set and into the PIV. 
     
     
         32 . The extension set of  claim 31 , wherein a distal end portion of the catheter is disposed within the vein of the patient and distal to the PIV when the fluid transfer device is in the second configuration. 
     
     
         33 . An extension set for facilitating device delivery through a peripheral intravenous access device (PIV) at least partially inserted into a vein of a patient, the extension set comprising:
 a distal end portion including a distal connector and a guide having a blunt distal end, the distal connector configured to couple to a proximal end portion of the PIV;   a proximal end portion including a proximal connector; and   a support configured to contact skin of the patient and stabilize the extension set against the skin of the patient.   
     
     
         34 . The extension set of  claim 33 , further comprising:
 a tubing disposed between the distal connector and the proximal connector.   
     
     
         35 . The extension set of  claim 33 , wherein the distal connector includes a distally-extending arm that contacts an outer surface of the PIV to lock the extension set to the PIV. 
     
     
         36 . The extension set of  claim 33 , wherein the support is coupleable to the distal connector. 
     
     
         37 . The extension set of  claim 33 , wherein the guide is constructed of plastic or metal. 
     
     
         38 . The extension set of  claim 33 , wherein the distal connector is a non-luer connector. 
     
     
         39 . The extension set of  claim 33 , wherein the proximal connector includes a seal. 
     
     
         40 . The extension set of  claim 33 , wherein at least one of the distal end portion or the proximal end portion includes a one-way valve. 
     
     
         41 . The extension set of  claim 33 , wherein the proximal connector is configured to be coupled to a distal end portion of a fluid transfer device, the fluid transfer device having a first configuration in which a catheter of the fluid transfer device is disposed within an introducer of the fluid transfer device and proximal to the extension set, and a second configuration in which the catheter extends from the introducer such that at least a portion of the catheter extends through the extension set and into the PIV. 
     
     
         42 . The extension set of  claim 41 , wherein a distal end portion of the catheter is disposed within the vein of the patient and distal to the PIV when the fluid transfer device is in the second configuration. 
     
     
         43 . An extension set for facilitating device delivery through a peripheral intravenous access device (PIV) at least partially inserted into a vein of a patient, the extension set comprising:
 a distal end portion including a distal connector and a guide having a blunt distal end, the distal connector configured to couple to a proximal end portion of the PIV, the guide extending into a lumen of the PIV and opening a seal disposed in the lumen when the distal connector is coupled to the proximal end portion of the PIV;   a proximal end portion including a proximal connector; and   a support configured to contact skin of the patient and stabilize the extension set against the skin of the patient.   
     
     
         44 . The extension set of  claim 43 , further comprising:
 a tubing disposed between the distal connector and the proximal connector.   
     
     
         45 . The extension set of  claim 43 , wherein the distal connector includes a distally-extending arm that contacts an outer surface of the PIV to lock the extension set to the PIV. 
     
     
         46 . The extension set of  claim 43 , wherein the support is coupleable to the distal connector. 
     
     
         47 . The extension set of  claim 43 , wherein the guide is constructed of plastic or metal. 
     
     
         48 . The extension set of  claim 43 , wherein the distal connector is a non-luer connector. 
     
     
         49 . The extension set of  claim 43 , wherein the proximal connector includes a seal. 
     
     
         50 . The extension set of  claim 43 , wherein at least one of the distal end portion or the proximal end portion includes a one-way valve. 
     
     
         51 . The extension set of  claim 43 , wherein the proximal connector is configured to be coupled to a distal end portion of a fluid transfer device, the fluid transfer device having a first configuration in which a catheter of the fluid transfer device is disposed within an introducer of the fluid transfer device and proximal to the extension set, and a second configuration in which the catheter extends from the introducer such that at least a portion of the catheter extends through the extension set and through the open seal of the PIV. 
     
     
         52 . The extension set of  claim 51 , wherein a distal end portion of the catheter is disposed within the vein of the patient and distal to the PIV when the fluid transfer device is in the second configuration.