GLIDING PERFORMANCES IMPROVED THROUGH TRIM RIB DIMENSIONAL GEOMETRY/SHAPE

A stopper (10) adapted for attachment with a plunger rod for use within a syringe barrel having improved gliding performance. The stopper (10) includes a main body (12) defining an open proximal end (14), a closed distal end (16), and a cylindrical sidewall (20) extending between the open proximal e...

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Bibliographic Details
Main Authors ROSSITTO Emmanuela, PERRIN Eloïse, MEYNIER Chantal, RIVE Adrien, RODRIGUEZ SAN JUAN Nestor
Format Patent
LanguageEnglish
Spanish
Published 06.08.2024
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Summary:A stopper (10) adapted for attachment with a plunger rod for use within a syringe barrel having improved gliding performance. The stopper (10) includes a main body (12) defining an open proximal end (14), a closed distal end (16), and a cylindrical sidewall (20) extending between the open proximal end (14) and the closed distal end (16). At least one rib (22) extends radially outward around a perimeter of the main body (12) and is configured for forming an active seal with the syringe barrel. A trim member (30) extends radially outward around a perimeter of the main body (12) at an interface between the closed distal end (16) and the open proximal end (14). The shape, size, and/or diameter of the trim member (30) is controlled to reduce the gliding force of the stopper (10) within the barrel. Un tapón (10) adaptado para su acoplamiento con un vástago de émbolo para su uso dentro de un cilindro de jeringa que tiene un rendimiento de deslizamiento mejorado. El tapón 10) incluye un cuerpo principal (12) que define un extremo proximal abierto (14), un extremo distal cerrado (16) y una pared lateral cilíndrica (20) que se extiende entre el extremo proximal abierto (14) y el extremo distal cerrado (16). Al menos una nervadura (22) se extiende radialmente hacia fuera alrededor del perímetro del cuerpo principal (12) y está configurada para formar un sello activo con el cilindro de jeringa. Un elemento de recorte (30) se extiende radialmente hacia fuera alrededor del perímetro del cuerpo principal (12) en la interfaz entre el extremo distal cerrado (16) y el extremo proximal abierto (14). La forma, el tamaño y/o el diámetro del elemento de recorte (30) se controlan para reducir la fuerza de deslizamiento del tapón (10) dentro del cilindro.
Bibliography:Application Number: MX20240009151