Systems and methods for coupling a drainage catheter to a patient and decoupling the drainage catheter from the patient

摘要

Systems and methods for coupling a catheter, such as a drainage catheter, to a patient's body and decoupling the catheter from the body are disclosed. Embodiments of the present invention take advantage of the flexibility of a catheter cannula and allow for a self-contained system that secures the catheter cannula within the body while bodily fluid is draining. In one embodiment, the catheter is coupled to the body by compressing a proximal hub member to a distal hub member, causing the cannula to curl and form an anchoring configuration (i.e. a loop, pigtail, j-curve, malecot, etc.). In compressing the portions, one or more fingers within the proximal hub member force a cord into one or more corresponding channels within the distal hub member, thereby shortening the amount of cord in the cannula. The proximal and distal hub members can be locked together in the compressed position for as long as the catheter is to be coupled to the body. The catheter can be decoupled from the patient's body by returning the hub to an extended position, pulling on the cord, or removing a wire to release the cord and allow for removal of the catheter cannula from the body.