Abstract: A tunneling system for use with a catheter includes an elongate tunneling member defining a longitudinal axis along at least a portion of a longitudinal length thereof. The elongate member has a first end and a second end. The tunneling system further includes a connector configured for releasably engaging the second end of the elongate tunneling member to the catheter.

Abstract: An instrument for facilitating insertion of a catheter through a subcutaneous tunnel includes a tunneling stylet defining a longitudinal axis and having leading and trailing ends, a bifurcated segment adjacent the leading end of the tunneling stylet and a releasable cover releasably mountable to the leading end of the tunneling stylet to substantially enclose the bifurcated segment. The bifurcated segment includes first and second elements adapted for reception within respective lumens of a catheter.

Abstract: A tunneling system for use with a catheter includes an elongate tunneling member defining a longitudinal axis along at least a portion of a longitudinal length thereof. The elongate member has a first end and a second end. The tunneling system further includes a connector configured for releasably engaging the second end of the elongate tunneling member to the catheter.

Abstract: A catheter adapter apparatus includes an adapter body. The adapter body includes a fluid source end adapted for connection to a fluid source and having an internal bore to transfer the fluids supplied by the fluid source, and a catheter end for connection to a catheter tube. The catheter end includes first and second members. Each of the first and second members is adapted for reception within corresponding lumens of the catheter tube. At least the first member defines an internal bore in fluid communication with the fluid source end to transfer the fluids supplied by the fluid source.

Abstract: A fluid delivery catheter that uses micro-needles for fluid delivery though a vessel wall. The catheter may provide fluid delivery therapy for various procedures, such as, for example, delivery of tumescent fluid or renal denervation. The catheter includes an elongate member with deployable and retractable needles disposed about a distal end of the elongate member. The needles may be disposed radially about the distal end and/or along a length of the distal end.

Abstract: A medical catheter includes an elongate catheter member defining a longitudinal axis, and a transverse axis transverse to the longitudinal axis, and having a proximal end and a distal end. The elongate catheter member includes an outer member and at least one longitudinal lumen within the outer member for passage of fluids. The outer member has an elongate opening therethrough in communication with the at least one longitudinal lumen and being spaced from the distal end and bound by wall portions of the outer member. The elongate opening permits fluids to pass between the at least one longitudinal lumen and locations external to the elongate catheter member, and defines a transverse dimension increasing from proximal to distal.

Abstract: A dialysis catheter includes an elongate catheter member having an outer wall member defining proximal and distal end regions, and first and second longitudinal lumens. The outer member includes first and second ports in respective fluid communication with the first and second longitudinal lumens. The first opening and the first lumen define an inflow passage. The second opening and the second longitudinal lumen define an outflow passage. A valve is disposed relative to the outer member proximal of the first port. The valve is adapted to move from a closed position to an open position in response to a predetermined vacuum pressure level realized within the first longitudinal lumen to permit flow of blood through the valve and into the first longitudinal lumen. The valve may be adapted to move to the open position in the event of a luminal occlusion.

Abstract: A dialysis catheter includes an elongate catheter member having an outer wall member defining proximal and distal end regions and first and second longitudinal lumens. The outer member includes first and second ports in respective fluid communication with the first and second longitudinal lumens. The first opening and the first lumen define an inflow passage. The second opening and the second longitudinal lumen define an outflow passage. A valve is disposed relative to the outer member proximal of the first port. The valve is adapted to move from a closed position to an open position in response to a predetermined vacuum pressure level realized within the first longitudinal lumen to permit flow of blood through the valve and into the first longitudinal lumen. The valve may be adapted to move to the open position in the event of a luminal occlusion.

Abstract: A tunneling system includes an elongate tunneling member defining a longitudinal axis along at least a portion of a longitudinal length thereof. The elongate tunneling member has a first end and a second end. The second end of the elongate tunneling member includes a coupling segment adapted for securely engaging a catheter.

Abstract: A medical system for connecting a multiple lumen medical catheter to associated medical instrumentation includes a connector member defining a longitudinal axis and having a first end for releasable coupling to the medical catheter and a second end for coupling to medical instrumentation. A mounting segment is adjacent the first end of the connector member. The mounting segment includes first and second mounting elements extending in a general longitudinal direction and arranged in spaced relation, and being adapted for reception within respective lumens of the catheter. The first and second mounting elements define inner opposing surfaces. At least one of the opposing surfaces may have an irregular surface portion dimensioned to engage the septum wall of the catheter to facilitate gripping engagement with the septum wall to assist in coupling of the connector member with the catheter.

Abstract: A tunneling system for use with a catheter includes an elongate tunneling member defining a longitudinal axis along at least a portion of a longitudinal length thereof. The elongate member has a first end and a second end. The tunneling system further includes a connector configured for releasably engaging the second end of the elongate tunneling member to the catheter.

Abstract: A tunneling system for use with a catheter includes an elongate tunneling member defining a longitudinal axis along at least a portion of a longitudinal length thereof. The elongate member has a first end and a second end. The tunneling system further includes a connector configured for releasably engaging the second end of the elongate tunneling member to the catheter.

Abstract: An instrument for facilitating insertion of a catheter through a subcutaneous tunnel includes a tunneling stylet defining a longitudinal axis and having leading and trailing ends, a bifurcated segment adjacent the leading end of the tunneling stylet and a releasable cover releasably mountable to the leading end of the tunneling stylet to substantially enclose the bifurcated segment. The bifurcated segment includes first and second elements adapted for reception within respective lumens of a catheter.

Abstract: A hemodialysis catheter assembly adapted for use in a subcutaneous tunneling procedure incorporates a mechanism for securing the catheter hub member to the elongated catheter, and to provide the requisite fluid communication between fluid passages within the hub and the catheter lumens within the catheter. The catheter hub member may be connected to the elongated catheter after implantation of the catheter via a subcutaneous tunneling procedure.

Abstract: An instrument for facilitating insertion of a catheter through a subcutaneous tunnel includes a tunneling stylet defining a longitudinal axis and having leading and trailing ends, a bifurcated segment adjacent the leading end of the tunneling stylet and a releasable cover releasably mountable to the leading end of the tunneling stylet to substantially enclose the bifurcated segment. The bifurcated segment includes first and second elements adapted for reception within respective lumens of a catheter. The instrument may further include a dilation member which is releasably mountable to the leading end of the tunneling stylet in the absence of the releasable cover. The dilation member is dimensioned to generally increase an internal dimension of the subcutaneous tunnel. The first and second elements of the bifurcated segment each include an outer peripheral rib dimensioned to facilitate gripping engagement with an internal surface of respective lumens of the catheter.

Abstract: A hemodialysis catheter assembly adapted for use in a subcutaneous tunneling procedure incorporates a mechanism for securing the catheter hub member to the elongated catheter, and to provide the requisite fluid communication between fluid passages within the hub and the catheter lumens within the catheter. The catheter hub member may be connected to the elongated catheter after implantation of the catheter via a subcutaneous tunneling procedure.

Abstract: A medical catheter assembly includes a catheter hub, an elongate catheter member extending from the catheter hub and having at least one longitudinal lumen for passage of fluids, an extension tube extending from the catheter hub and defining an internal lumen in fluid communication with the at least one longitudinal lumen of the catheter member and a clamp positionable about the extension tube. The catheter hub defines a reduced profile to facilitate passage of the catheter hub through a surgical tunnel. The clamp includes first and second clamp sections and defines a longitudinal clamp axis. The clamp has a longitudinal opening for passage of the extension tube and a movable member adapted to move from a first position to a second position to substantially close the internal lumen. The first and second clamp sections are separable to facilitate transverse positioning of the clamp sections about the extension tube.

Abstract: A medical catheter assembly includes a catheter hub, an elongate catheter member extending from the catheter hub and having at least one longitudinal lumen for passage of fluids, an extension tube extending from the catheter hub and defining an internal lumen in fluid communication with the at least one longitudinal lumen of the catheter member and a clamp positionable about the extension tube. The catheter hub defines a reduced profile to facilitate passage of the catheter hub through a surgical tunnel. The clamp includes first and second clamp sections and defines a longitudinal clamp axis. The clamp has a longitudinal opening for passage of the extension tube and a movable member adapted to move from a first position to a second position to substantially close the internal lumen. The first and second clamp sections are separable to facilitate transverse positioning of the clamp sections about the extension tube.

Abstract: A diluent/medication mixing syringe assembly is described which includes a cannula which extends through a syringe plunger assembly into a reservoir of the syringe assembly. The cannula facilitates injection of a diluent, medication or other fluid into the fluid reservoir of the syringe assembly immediately prior to use for mixing with a medication in the reservoir. In one embodiment, a mixing element is secured to a distal end of the cannula within the reservoir to improve mixing efficiency.

Abstract: A diluent/medication mixing syringe assembly is described which includes a cannula which extends through a syringe plunger assembly into a reservoir of the syringe assembly. The cannula facilitates injection of a diluent, medication or other fluid into the fluid reservoir of the syringe assembly immediately prior to use for mixing with a medication in the reservoir. In one embodiment, a mixing element is secured to a distal end of the cannula within the reservoir to improve mixing efficiency.