Infusion system and components thereof
Inventors
DAMIANO, Edward R. • Selagamsetty, Rajendranath • EL-KHATIB, Firas H. • Knodel, Bryan D. • Carr, Raymond A.
Assignees
Bryan Knodel Inc • Occam Technology Group • Boston University • Beta Bionics Inc
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Publication Number
US-11771821-B2
Publication Date
2023-10-03
Expiration Date
Abstract
Multi-medicament infusion systems prevent cross-channeling of medicaments. A system may include one or more of an infusion pump, medicament reservoirs, a multi-channel fluid conduit, and an infusion set. Medicament reservoirs and/or collars may be sized and shaped differently such that the medicament reservoirs can only be inserted into the system under selected configurations.
Core Innovation
The inlet connector set delivers multiple medicaments to a patient while addressing cross-channeling between medicament paths. First and second inlet connectors couple respective medicament reservoirs to respective infusion-pump receptacles using capture features and tightening features. Each connector includes a recessed needle configured to receive medicament from its reservoir while reducing user contact risk during handling.
A check valve on the first connector resists unintended distribution and allows medicament flow in response to a threshold fluid pressure greater than gravitationally induced hydrostatic pressure. The system further includes a second check valve configured to resist unintended distribution of the second medicament and features on the first connector configured to prevent coupling to the second medicament reservoir. Fluid conduits and an infusion base route medicaments through the connectors to deliver multiple medicaments to the patient.
Claims Coverage
The claims include two independent claims covering an inlet connector set for delivering multiple medicaments to a patient across two inventive features.
Pressure-responsive inlet connector set
The first independent claim recites first and second inlet connectors, each comprising a tightening feature configured to affix the connector to a respective infusion-pump receptacle, a capture feature configured to couple it to a respective medicament reservoir, and a recessed needle configured to receive medicament. The first connector includes a check valve configured to resist unintended distribution of the first medicament and to allow flow in response to a threshold fluid pressure greater than the gravitationally induced hydrostatic pressure caused by placing the first reservoir set above the patient's infusion site.
Inlet connector set with reservoir-mismatch prevention
The second independent claim recites first and second inlet connectors with respective tightening features, capture features, and recessed needles, and specifies a first check valve configured to resist unintended distribution of the first medicament and a second check valve configured to resist unintended distribution of the second medicament. The first medicament inlet connector has features configured to prevent coupling to the second medicament reservoir, and the first check valve allows flow at a threshold fluid pressure greater than the gravitationally induced hydrostatic pressure caused by placing the reservoir above the patient's infusion site.
Together, the independent claims cover paired inlet connectors with recessed needles and pressure-resisting check valves, with the second independent claim additionally providing a second check valve and features configured to prevent coupling the first connector to the second medicament reservoir.
Stated Advantages
Check valves resist unintended distribution and flow of medicaments from their respective reservoirs.
Recessed inlet needles reduce the risk of user contact during handling.
Restricting incorrect pairings through connector features prevents cross-channeling and prevents coupling the first connector to the second medicament reservoir.
Documented Applications
Delivering multiple medicaments to a patient through first and second inlet connectors coupled to respective medicament reservoirs and infusion-pump receptacles.
An infusion set arrangement comprising the inlet connector set, fluid conduits, infusion connectors, and an infusion base to provide fluid paths to the patient.
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