Closed system catheter
Inventors
Abitabilo, James Edward • Akcay, Gursel • Breindel, Jay T. • Chheda, Harsh D. • Felicito, Kathryn • Goral, David J. • Muskatello, James • Roehl, Christopher
Assignees
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Publication Number
US-12734330-B2
Publication Date
2026-09-15
Expiration Date
Abstract
A catheter hub assembly. The catheter hub assembly includes a catheter hub body, a septum and a septum retainer, the catheter hub body having a distal end, a proximal and an internal wall defining an internal fluid passageway therebetween, the internal wall defining a transitional step within the internal fluid passageway, the septum positioned within the internal fluid passageway such that a distal end of the septum abuts up against the transitional step, the septum retainer at least partially receivable within the internal fluid passageway and having an outer wall shaped and sized to interlock with the inner wall of the catheter hub body, the outer wall including one or more lateral ribs configured to inhibit rotation of the septum retainer relative to the catheter hub body.
Core Innovation
The disclosure describes a vent cap operably coupleable to a needleless connector and shiftable between a storage position and a venting position. The vent cap includes an insertable nose, a push plate having a flange and opening, and resilient engagement arms configured to grip the connector housing. These resilient engagement arms enable movement when the push plate is actively depressed. Additional vent-path features include an air-permeable barrier, a translucent wall for flashback indication, and an alternate air escape eyelet.
A closed system catheter assembly comprises a catheter hub with an internal passage, a catheter extending distally, a side port connected to an extension tube, a needleless connector, and the shiftable vent cap. The assembly establishes a fluid path through the connector to purge trapped air. Fluid entering the vent path provides visual flashback indication through the transparent or translucent wall.
Claims Coverage
The independent claims encompass two inventive features.
Vent cap for a needleless connector
A vent cap shiftable relative to a needleless connector between a storage position and a venting position, comprising a nose adapted to be inserted into the connector housing, a push plate having a flange and opening to provide a surface area for clinician depression, and resilient engagement arms configured to grip the connector housing and enable movement when the plate is actively depressed.
Closed system catheter assembly with a shiftable vent cap
A closed system catheter assembly comprising a catheter hub with an internal passage, a catheter extending distally from the hub, a side port connected to an extension tube, a needleless connector connected to the extension tube, and a vent cap shiftable between storage and venting positions having a nose, a push plate with a flange and opening, and resilient engagement arms configured to grip the connector housing.
The independent claims cover the shiftable vent cap structure and its engagement with a needleless connector, both individually and integrated within a closed system catheter assembly to purge trapped air.
Stated Advantages
The vent cap and its vent path allow trapped air to vent through the push-plate opening to purge the closed system catheter assembly.
A transparent or translucent wall provides a visual flashback indication as fluid enters the vent path.
Documented Applications
Use with a needleless connector within a closed system catheter assembly comprising a catheter, a catheter hub with an internal passage, a side port, and an extension tube to purge trapped air.
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