Title:
MEDICAL DELIVERY DEVICES HAVING LOW LUBRICANT SYRINGE BARRELS
Document Type and Number:
Japanese Patent JP2023096037
Kind Code:
A
Abstract:
To provide medical delivery devices that include a barrel having an inner surface.SOLUTION: In at least one embodiment, the inner surface is hydrophilic. The medical delivery device may further include a stopper that may have an elastomeric body, one or more fluoropolymer layers, and two or more ribs laminated to the one or more fluoropolymer layers. In some embodiments, the contact angle of the inner surface of the barrel is less than about 58°. Additionally, the stopper includes a sliding surface of less than about 2.0 mm. The barrel provides an inner surface that in combination with the fluoropolymer laminate or a fluoropolymer film achieves high levels of air and liquid impermeability while also maintaining an acceptably low break loose force, low average glide force, and low glide force variation. In some embodiments, the compressibility of the stopper against the barrel is greater than about 7.9%.SELECTED DRAWING: Figure 13
Inventors:
MICHAEL C BERG
DANIEL H TODD
ERIC J VAN VOORHEES
DANIEL H TODD
ERIC J VAN VOORHEES
Application Number:
JP2023080897A
Publication Date:
July 06, 2023
Filing Date:
May 16, 2023
Export Citation:
Assignee:
WL GORE & ASS INC
International Classes:
A61M5/315; A61M5/28
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Satoshi Deno
Atsushi Ebitani
Naohisa Akashi
Shinji Mihashi
Satoshi Deno
Atsushi Ebitani
Naohisa Akashi