Medical syringe system with filtered filling port

US11547797B2 · kind B2 · utility

Assignees

• Baxter International Inc. · US
• Baxter Healthcare SA · CH

Inventors

• Yuanpang Samuel Ding · Libertyville, US
• Marc Steven Minkus · Bannockburn, US
• Ying-Cheng Lo · North Aurora, US
• Mark Doty · Grayslake, US
• Thomas E. Dudar · Palatine, US
• Grant Anthony Bomgaars · Kildeer, US
• Mark Edward Pasmore · Grayslake, US
• Michael Joseph Sadowski · Ringwood, US
• Anastasios Hristakos · Evanston, US
• Bernd Krause · Liederbach, DE
• Joseph V. Ranalletta · Guntersville, US

Key dates

• Filing date: Jul 12, 2018
• Grant date: Jan 10, 2023
• Expiry date: Nov 8, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/705
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A syringe system includes a syringe and a filtration device connected to the syringe for sterilizing and introducing fluid into the syringe. The syringe includes a syringe barrel having a proximal end defining a barrel opening, a distal end defining a delivery opening, a bore extending between the proximal end and the distal end, and a stopper disposed in the bore of the syringe barrel. The filtration device has an inlet and an outlet coupled in fluid communication with the delivery opening at the distal end of the syringe barrel. The filtration device includes a stem and a filter membrane disposed in line with the stem. The filter membrane optionally has a plurality of pores each with a nominal pore size in a range of approximately 0.1 μm to approximately 0.5 μm such that a pharmaceutical fluid can be introduced as a sterilized pharmaceutical fluid into the bore of the syringe barrel by passing through the filtration device.