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US 11,590,324 B2Granted
Safety catheter with passive release
AssigneeSmiths Medical ASD, Inc.
InventorsGursel Akcay, Harsh D Chheda, David J Goral, Thomas T Koehler
Life of this patent
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Abstract
A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.
Claims20
A safety catheter comprising:
- a catheter including a catheter tube and a catheter hub;
- an insertion needle assembly including an insertion needle having a sharp distal tip and a proximal end;
- and a tip protector assembly having an inner member, an outer member, a retainer and a collar, the inner member being slidable within the outer member between a distal inner member position and a proximal inner member position,
- the retainer being movable between a distal retainer position and a proximal retainer position;
- wherein the tip protector assembly is changeable between a ready configuration, a safe configuration, and a release configuration;
- wherein in the ready configuration, the retainer is in the distal retainer position and the retainer and the collar cooperate to prevent separation of the tip protector assembly from the catheter hub;
- wherein in the safe configuration, the inner member is in the proximal inner member position, the retainer is in the distal retainer position, and the retainer and collar cooperate to prevent separation of the tip protector assembly from the catheter hub;
- and
- wherein in the release configuration, the retainer is in the proximal retainer position and the tip protector assembly is separable from the catheter hub.
6 more elements
A safety catheter assembly, comprising:
- a catheter hub having an interior cavity defined between an open proximal end and a distal end having a catheter extending distally therefrom, the catheter defining a lumen having a distal end;
- a tip protector assembly including
- a collar having an open distal end adapted to be coupled to the proximal end of the catheter hub,
- a retainer movably coupled to the collar such that an interior space is formed in the coupled collar and retainer;
- a needle tip protector having at least a proximal portion thereof housed in the interior space of the collar and the retainer;
- a needle having a shaft and a sharp distal tip;
- wherein the safety catheter assembly is in a ready position when the needle extends through the needle tip protector into the internal cavity of the catheter hub with the distal tip of the needle extending beyond the distal end of the catheter;
- wherein the safety catheter assembly is in a safe position when the distal tip of the needle is withdrawn proximally into the needle tip protector;
- and
- wherein the tip protector assembly is separable from the catheter hub when the needle is further moved in the proximal direction such that the retainer is moved proximally relative to the collar.
7 more elements
Dependencies are inferred from the claim text.