The subject guide catheter extension system with a micro-catheter delivery catheter includes an outer sheath, an inner member extending within the sheath, and a mechanism for engagement/disengagement of the inner member to/from the sheath. Several mechanisms of engagement/disengagement between the inner and outer members are provided including a friction mechanism, threaded mechanism, pull away sheath, and engagement/disengagement mechanism for pusher's handles. The sheath and the inner member are modified for different engagement/disengagement mechanisms operation. A micro-catheter delivery system provides for an improved atraumatic crossability to the treatment site in an expedited and simplified fashion. During a procedure, a guidewire along with a guide catheter are advanced to the vicinity of the treatment site within a blood vessel. Subsequent thereto, the subject guide catheter extension system is manipulated to advance the micro-catheter along the guidewire inside the guide catheter towards and beyond the site of interest. Once the micro-catheter is in place, the outer sheath slides along the micro-catheter until reaching the lesion, and then the inner member is removed from the sheath, and the sheath then is ready for passing the treatment catheter (stent/balloon) towards the lesion to be treated.

A catheter package includes an elongated case. A cap is attached to the case by a flexible strap. The case receives the tubing portion of a catheter. The catheter has a funnel attached to the tubing. The funnel has a seal portion releasably engageable with the case. The cap is releasably engageable with the funnel to retain the funnel in contact with the case. A user can flip the cap off the funnel to permit removal of the catheter from the case. The funnel may include ridges or a tactile ring to improve the user’s grip on the funnel. An adaptor may be disposed between the funnel and case to allow mating of different cross sectional shapes of the funnel and case. A hydration device may be inserted in the case. Alternately, a tubular liner may be inserted in the case to separate liquid water on the outside of the liner from the catheter tubing on the inside of the liner. A window in the liner mounts a patch of filter material that permits the passage of water vapor into the interior of the liner.

A system for facilitating instrument delivery through a peripheral intravenous catheter may include a catheter adapter having a proximal end, a distal end, and a lumen extending there through. The catheter adapter may include a side port. The system may include an extension tube extending from the side port. The system may include a blood control valve disposed in the lumen of the catheter adapter. The system may include a peripheral intravenous catheter extending distally from the catheter adapter.

An IV catheter system may have a catheter component with a catheter hub, a cannula extending distally from the catheter hub, and a push feature adjacent to the catheter hub. The IV catheter system may also have a needle component with a needle hub, a needle extending distally from the needle hub along an axis, and a grip extending from the needle hub, generally parallel to the axis, with a pull feature. In the insertion configuration, the needle may be positioned within the cannula and the distal end of the needle hub may be seated in a needle port of the catheter hub. In the fluid delivery configuration, the needle may be positioned outside the catheter hub. The push and pull features may be positioned to facilitate manipulation with a single hand to move the IV catheter system from an insertion configuration to a fluid delivery configuration.

Disclosed herein are embodiments of stabilizers for use in delivering a replacement heart valve. The stabilizers can receive a portion of a delivery system, such as a handle, to prevent unwanted motion of the delivery system. The stabilizer can include a linear actuator for adjusting a position of the delivery system once held within the stabilizer.

A reuse prevention safety catheter is proposed. The reuse prevention safety catheter includes: a catheter hub having an external needle disposed therein; a cannula plug having an internal needle inserted and penetrated into the catheter hub disposed therein to introduce the external needle into a blood vessel and be separated from the catheter hub; and a locking guide unit having a through-hole configured to allow the internal needle to pass through, wherein the through-hole is deformed when the penetrated internal needle is withdrawn, such that re-penetration of the internal needle is blocked.

A smart obturator assembly includes a hub forming a central passage. The hub is configured to couple to a proximal end of a device that forms a lumen such that the central passage is in fluid communication with the lumen. A collar on the hub includes electronic circuitry in signal communication with remote reception circuitry. An obturator is movably positionable within the lumen. The obturator is movable within the lumen between a first position and a second position. The obturator includes a distal end and a sensor at the distal end. The sensor is configured to sense an environmental characteristic within a patient's blood stream, generate a signal representative of the environmental characteristic, and transmit the signal to the electronic circuitry. The electronic circuitry is configured to receive the signal and transmit the signal to the remote reception circuitry.

A catheter assembly includes a peripheral intravenous (“PIV”) portion that provides expedited vascular access. The catheter assembly includes an elongate catheter body defining a first lumen and includes a CVC portion, a transition portion, and a PIV portion. The PIV portion defines a relatively smaller diameter, a tapered tip, and a lumen configured to receive a needle. The needle extends through a needle access aperture, disposed through a side wall of the catheter body, through the PIV lumen, to a point beyond a distal end of the catheter body. A clinician accesses a vasculature using the needle and the PIV portion. The needle is then removed and a guidewire advanced through the lumen of the catheter body and the PIV portion into the vasculature. The CVC portion is then advanced over the guidewire into the vasculature, self-dilating the insertion site as the transition portion enters the vasculature.

In some embodiments, a catheter system may include a catheter adapter having a distal end, a proximal end, and a lumen extending there between. In some embodiments, the catheter system may also include a catheter extending distally from the distal end of the catheter adapter, an extension tube, and a connector coupled to a proximal end of the extension tube. In some embodiments, a distal end of the extension tube may be coupled to the proximal end of the catheter adapter. In some embodiments, the connector, the extension tube, the lumen, and the catheter may form a straight pathway for delivery of an instrument to the catheter system. In some embodiments, an extension set for a catheter assembly may include the extension tube, the connector coupled to the proximal end of the extension tube, and another connector coupled to the distal end of the extension tube.

The invention relates to coaxial needle assembly (41) for introduction into human tissue, comprising an anesthesia needle (11), a stylet (21) and a coaxial cannula (31), wherein the anesthesia needle is inserted in the stylet and has a distal end (12) that projects out from a distal end (22) of the stylet, and wherein the stylet is inserted in the coaxial cannula and has a distal end (22) that projects out from a distal end (32) of the coaxial cannula, such that, during introduction into and through human tissue, the coaxial needle assembly acts and is manipulated as an integrated device. The assembly is arranged with a predetermined needle-stylet release torque which is required to release the anesthesia needle (11) from the stylet (21), and a predetermined stylet-cannula release torque which is required to release the stylet (21) from the coaxial cannula (31), wherein the value of predetermined needle-stylet release torque is less than the value of predetermined stylet-cannula release torque.