公开(公告)号：US10898649B2

公开(公告)日：2021-01-26

申请号：US15966657

申请日：2018-04-30

Applicant: NOVARTIS AG

Inventor： Pooria Sharif Kashani ,  Omeed Paydar

IPC: A61M5/315 ,  A61M5/31 ,  A61M5/19

Abstract: In a general aspect, a syringe terminates the dispensing of a fluid based on a force applied to a plunger member of the syringe. In some aspects, a plunger member of a syringe includes a top portion, a bottom portion, and a contact portion. The top and bottom portions are in contact with the contact portion, and the bottom portion has a length greater than or equal to a length of the top portion. The contact portion permits the top portion to move independent of the bottom portion in response to a stress in the contact portion exceeding a critical stress. The stress in the contact portion is based on a first force applied to the top portion and a second force opposite the first force applied to the bottom portion.

公开(公告)号：US20190008680A1

公开(公告)日：2019-01-10

申请号：US15954075

申请日：2018-04-16

Applicant: Novartis AG

Inventor： Mauricio Jochinsen ,  Omeed Paydar

IPC: A61F9/007

Abstract: Provided herein are systems, methods, and apparatuses that include a vitrectomy tip having port features for improved severing of vitreous fibers in a vitrectomy procedure. The vitrectomy tip may include one or more filaments traversing a port formed in the vitrectomy tip. The one or more filaments separate the port into a plurality of openings. When the vitrectomy tip is ultrasonically vibrated, the filaments impact the vitreous fibers causing them to sever. In this way, the filaments serve as severing elements to separate the vitreous fibers from the eye, thereby providing or improving the ability of the vitrectomy tip to perform the vitrectomy procedure.