DRUG DELIVERY SYSTEM WITH DRUG DIFFERENTIATION FEATURE

• Main Author: JENSEN NICOLAI M
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

A cartridge comprising a generally cylindrical cartridge main body with a proximal edge portion having a circumferential inner surface and a proximal opening surrounded by a circumferential edge, a piston slidable received therein, and a ring-formed code member attached to the circumferential edge portion and comprising an axially extending mounting portion in engagement with the edge portion circumferential inner surface, a flange portion having a distally facing mounting surface in engagement with the circumferential edge and a proximally facing stop surface, and a drive opening allowing a piston rod to engage the piston proximal surface, wherein the flange portion radially extends within the circumferential boundaries of the cartridge main body. 一种筒，所述筒包括：大体圆柱形筒主体，其具有近侧边缘部分，该近侧边缘部分具有周向内表面和由周向边缘包围的近侧开口；可滑动的活塞，其接收在筒主体中；和环形编码构件，其附接到周向边缘部分并且包括：与边缘部分周向内表面接合的轴向延伸的安装部分，具有与周向边缘接合的面向远侧的安装表面和面向近侧的止挡表面的凸缘部分，以及允许活塞杆接合活塞近侧表面的驱动开口，其中所述凸缘部分在筒主体的周向边界内径向延伸。