A catheter assembly comprises a catheter (18), a needle (12) having a sharp distal tip disposed within the catheter (18), a catheter hub (14) connected to the catheter (18) having the needle (12) passing therethrough, the catheter hub (14) including a valve (38) that selectively permits or blocks a flow of fluid through the catheter (18), a valve actuator (54) that moves between a first position and a second position, and a return member (56) that returns the valve actuator (54) from the second position to the first position, and a needle protection member (176) that encloses the sharp distal tip of the needle (12).

A catheter assembly (10) comprises a catheter (22), a needle (12) having a sharp distal tip disposed in the catheter (22), a catheter hub (14) housing the catheter (22) and the needle (12), the catheter hub (14) having a collar (34) including a notch (36), a needle shield (20) connected to the catheter hub (14) when the needle (12) is in a first position, and a clip (40) disposed in the needle shield (20) that cooperates with the needle (12), wherein the clip (40) engages the catheter hub (14) in the first position of the needle (12), and the clip (40) disengages the catheter hub (14) via the notch (36) when the needle (12) is retracted to a second position to enclose at least a portion of the needle (12). The clip (40) is mounted in the outer housing (38) of the needle shield (20) via a spade (66) having an outer wall (70) exposed to the outside of the needle shield (20), in order to reduce the overall width of the needle shield (20).

An integral seal system includes a body that defines a central opening, and an asymmetric seal extending into the central opening and including a diaphragm and an annular flange that extends between the body and the diaphragm, wherein the diaphragm has a cross-sectional thickness larger than a cross-sectional thickness of the annular flange. A duckbill seal extends distally from a bottom of the body and defines one or more parting lines that separate opposing seal flaps. The diaphragm complements insertion and extraction drag forces generated by the duckbill seal against a surgical tool shaft extended therethrough such that total insertion and extraction drag forces generated by the integral seal system are equalized.

The invention disclosed comprises methods, apparatuses and compositions to treat acute and chronic wounds with pressures altered from atmospheric. The methods, apparatuses and compositions herein improve the performance of Altered Pressure wound therapy. The improvements also make the treatments more comfortable for the patient and the delivery of the treatment more convenient for clinicians. These improvements collectively result in improved efficacy, improved compliance, improved safety and improved clinical efficiency, while limiting clinical errors in treatment.

Introducer sheath systems including a pressure regulator operably coupled to a hemostatic valve, wherein the pressure regulator includes a chamber filled with a gas that is fluidly isolated from the hemostatic valve. The introducer sheath systems may include a tubular sheath, a hub assembly, and a dilator disposed therein connected to a proximal end of the sheath; the hub assembly including a housing and a hemostatic valve disposed therein; a pressure regulator connected to the hub and in fluid communication with the hemostatic valve; and a sealed chamber defined by the pressure regulator, the chamber having an interior, wherein the interior of the chamber is filled with a gas that is fluidly isolated from the hemostatic valve.

A delivery device for an implantable medical device may include an inner shaft configured to retain the implantable medical device at its distal end, an outer shaft slidably disposed about the inner shaft, and a locking hub affixed to the outer shaft. The locking hub may include a housing, a piston element in the housing, an actuator operatively coupled to the piston element, and a clamping gasket made of a compressible material and disposed in the housing. The actuator may be movable relative to the housing between unlocked and locked conditions. The clamping gasket may have a lumen defining a first diameter with the actuator in the unlocked condition and a second diameter with the actuator in the locked condition, the second diameter being less than the first diameter. The outer shaft and the locking hub may be fixed to the inner shaft with the actuator in the locked condition.

Needle assemblies and related methods in which a valve opener is pushed into a valve to open one or more slits parting a plurality of flaps on the valve to open the valve, creating an internal reaction force within the plurality of flaps. The plurality of flaps of the valve utilize the internal reaction force to retract back to a closed position following removal of the valve opener from the valve, thereby sealing the valve until reopened if reused. The needle assemblies each include a needle hub with a needle, a catheter tube with a catheter hub, the valve, and the valve opener positioned in an interior cavity of the catheter hub.

A clip used in a catheter assembly, the clip comprising a first leg and a second leg angularly connected to the first leg, wherein the second leg includes a substantially U-shaped spade configured to engage a needle housing of the catheter assembly to secure the clip to the needle housing.

A medical device, comprising a hub or housing including a push tab disposed on an upper surface of the hub or housing and a rib disposed on the upper surface of the hub or housing, the rib including a top surface and the rib being proximal to the push tab, and a cannula directly or indirectly connected to the hub or housing, wherein the top surface of the rib includes a cradle shape for resisting rotation of the hub or housing when contacted by a finger of a user.

Sheath assembly for the insertion of a cord-shaped element, comprising an introducer sheath, and an auxiliary sheath for insertion into the introducer sheath together with the cord-shaped element. In some examples, the auxiliary sheath has a housing configured to detachably couple to the introducer sheath housing, and to detachably fasten the cord-shaped element with respect to the auxiliary sheath housing.