Becton Dickinson and Company Limited

Carl Ellis

Jonathan Karl Burkholz

Marty Lee Stout

Stephen T Bornhoft

Daniel Kirk Hyer

Ralph Lee Sonderegger

Bart David Peterson

Bin Wang

Eric James Davis

Corey Christensen

Tyler Warner

Thomas Solosko

Michael D Garrison

Christopher Maul

A medical device, comprising a hub or housing having a push tab including a main portion extending radially from an upper surface of the hub or housing, and at least one anti-rotation feature for resisting rotation of the hub or housing. A cannula is directly or indirectly connected to the hub or housing. The medical device may be a catheter, the cannula may be a catheter tube, and the hub or housing may be a catheter hub or an introducer needle tip shield for the catheter.

Medical device with anti-rotation push tab

A catheter system may include a catheter hub, a septum disposed within the catheter hub, a catheter tube extending from the catheter hub, a needle hub, and an introducer needle secured within the needle hub. The catheter hub may include a push tab and one or more ribs, which may extend outwardly from an upper surface of the catheter hub. The ribs may be shorter in height than the push tab and/or may be generally parallel to the push tab. The introducer needle may include a flashback notch. In response to insertion of the introducer needle into vasculature, blood may flow into the introducer needle, through the flashback notch, and into a flashback chamber disposed between the septum and the catheter tube. The flashback chamber may be disposed distal to the push tab and the ribs, which may improve visualization of the flashback chamber by a user.

A catheter assembly may include a catheter adapter, a septum housing, and a septum. The catheter adapter may include a distal end, a proximal end, an inner wall extending between the distal end and the proximal end, and a lumen formed by the inner wall. The septum housing may include one or more protrusions and may be secured to the inner wall by one or more of the following: an interference fit between the one or more protrusions and the inner wall, a snap fit between the one or more protrusions and the inner wall, and bonding between the one or more protrusions and the inner wall. The septum may be at least partially disposed within the septum housing and configured to at least substantially seal the lumen.

Septum housing

A self-slitting open lumen cannula may be used with catheter adapters to reduce manufacturing complexity and costs, as well as improve the safety of the catheter adapters against fluid leakage. The open lumen cannula may also include one or more notches to facilitate flashback visualization. The catheter adapters may further include a catheter adapter body formed of a compliant material that houses one or more compression resistant septa with at least one lumen formed by the proximal end of the needle during a self-slitting process as the catheter adapter is assembled. The compression resistant septum may also be coupled to a compression cap that imparts a radial compression force on the one or more compression resistant septa such that the at least one lumen narrows and seals when the cannula is removed.

Compliant catheter adapter having self-slitting needle

A septum is disclosed that can be utilized in a catheter assembly to selectively seal an opening in the catheter assembly. The septum has a tube portion and a plug portion. The plug portion has a slit extending through it. The septum can transition from a non-collapsed state to a collapsed state. When the septum is in a non-collapsed state, the plug portion is offset from the tube portion such that some of the length of the slit extends outward from the distal end of the tube portion. When the septum transitions to the collapsed state, the plug portion is moved inward into the internal cavity such that some of the length of the slit may or may not extend outward from the distal end of the tube portion.

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Tucson, AZ, United States of America

Carl Ellis