Infusion pump syringes with reduced flexing, improved sealing
Summary
The USPTO published patent application US20260091168A1 for syringes designed for infusion pumps with reduced flexing and improved sealing. Invented by James Jacobson et al., the application (filed September 18, 2023) covers syringe barrel, plunger rod, and seal designs suited for infusion pumps with frequent start/stop operations at low flow rates. CPC classifications include A61M 5/1452 and related subclasses.
What changed
The patent application US20260091168A1 discloses syringe designs for infusion pumps that address compliance issues from flexing and deformation of the barrel, plunger rod, and plunger seal. The invention also provides improved sealing between the barrel and plunger rod with enhanced pressure resistance, specifically designed for infusion pumps subjected to many start/stop operations over extended periods at low flow rates. The application claims priority to application number 19110450.
Medical device manufacturers developing infusion pump systems should monitor this filing for potential future licensing considerations or competitive landscape awareness. While patent applications do not create immediate compliance obligations, they may inform freedom-to-operate analyses for companies in the infusion pump or syringe manufacturing space. No action is required at this time.
Archived snapshot
Apr 2, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
SYRINGES FOR INFUSION PUMPS
Application US20260091168A1 Kind: A1 Apr 02, 2026
Inventors
James Jacobson, Robert Butterfield, Robert Hlinsky, Marshall Fryman, Ross Spence
Abstract
Embodiments of syringes and components thereof described herein provide reduced compliance from flexing or deformation, of not only the syringe barrel but also of the syringe plunger rod and plunger seal. Embodiments of syringes and components thereof described herein also provide improved sealing between the barrel and the syringe plunger rod, and improved resistance to pressure. Embodiments of syringes and components thereof described herein are advantageously suited for use with an infusion pump which may subject syringes to many start/stop operations over a period of hours, sometimes at very low flow rates.
CPC Classifications
A61M 5/1452 A61M 5/3129 A61M 5/31513 A61M 2005/3131
Filing Date
2023-09-18
Application No.
19110450
Named provisions
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