Needle shielding assemblies and infusion devices for use therewith
First Claim
1. An infusion set, comprising:
- a base, comprising;
a base portion having a column extending proximally therefrom, the column having a plurality of inverted J-shaped engagement structures with cantilevered ends, the engagement structures forming engagement pockets therein and being circumferentially arrayed around the column and separated by a plurality of slots;
a septum disposed within the column; and
a cannula protruding distally from the base portion and being in fluid communication with a distal side of the septum; and
a locking fluid connector, comprising;
a tubing portion having a tubing port for connecting tubing thereto; and
a hub portion for connecting with the base, the hub portion comprising;
a domed portion;
a blunt cannula for penetrating the septum, the blunt cannula extending from the domed portion and being fluidly connected with the tubing port;
a plurality of engagement fingers protruding radially inward; and
a spring element held within the domed portion by the engagement fingers;
wherein;
the engagement fingers are alignable with the aligning the slots;
the locking fluid connector is displaceable toward the base when the blunt cannula is aligned with the septum and the engagement fingers are aligned with the slots, thereby compressing the spring element;
the locking fluid connector is rotatable about the column once the engagement fingers have distally cleared the cantilevered ends of the engagement structures; and
the locking fluid is displaceable away from the base under the force of the spring element with the engagement fingers disposed within the engagement pockets to lock the fluid connector to the base in one of a plurality of discrete circumferential orientations.
1 Assignment
0 Petitions
Accused Products
Abstract
A needle assembly includes a needle and a needle shield device. The needle shield device includes an inner shield connectable to at least one a base and a fluid connector connectable to the base, and an outer shield fixedly connected to the opposing end the needle and displaceable relative to the inner shield between a first position, in which the sharpened end of the needle is exposed outside the inner shield, and a second position, in which the sharpened end of the needle is shielded by the inner shield. Interaction between portions of the inner and outer shields during or after proximal displacement of the outer shield from the first position to the second position automatically releases or permits release of the inner shield from connection to the at least one of the base and the fluid connector.
203 Citations
6 Claims
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1. An infusion set, comprising:
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a base, comprising; a base portion having a column extending proximally therefrom, the column having a plurality of inverted J-shaped engagement structures with cantilevered ends, the engagement structures forming engagement pockets therein and being circumferentially arrayed around the column and separated by a plurality of slots; a septum disposed within the column; and a cannula protruding distally from the base portion and being in fluid communication with a distal side of the septum; and a locking fluid connector, comprising; a tubing portion having a tubing port for connecting tubing thereto; and a hub portion for connecting with the base, the hub portion comprising; a domed portion; a blunt cannula for penetrating the septum, the blunt cannula extending from the domed portion and being fluidly connected with the tubing port; a plurality of engagement fingers protruding radially inward; and a spring element held within the domed portion by the engagement fingers; wherein; the engagement fingers are alignable with the aligning the slots; the locking fluid connector is displaceable toward the base when the blunt cannula is aligned with the septum and the engagement fingers are aligned with the slots, thereby compressing the spring element; the locking fluid connector is rotatable about the column once the engagement fingers have distally cleared the cantilevered ends of the engagement structures; and the locking fluid is displaceable away from the base under the force of the spring element with the engagement fingers disposed within the engagement pockets to lock the fluid connector to the base in one of a plurality of discrete circumferential orientations. - View Dependent Claims (2, 3)
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4. An infusion set, comprising:
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a base, comprising; a base portion having a column extending proximally therefrom, the column having a ball-shaped base latch at its proximal end; septum disposed within the column; and a cannula protruding distally from the base portion and being in fluid communication with a distal side of the septum; and a fluid connector, comprising; a tubing portion having a tubing port for connecting tubing thereto; and a hub portion for connecting with the base, the hub portion comprising; a domed portion; a blunt cannula for penetrating the septum, the blunt cannula extending from the domed portion and being fluidly connected with the tubing port; and a plurality of distally cantilevered snap latches, each having an internal angular profile to snap over the base latch to connect the fluid connector with the base. - View Dependent Claims (5, 6)
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Specification