Protective cap
AssigneeCarmel Pharma AB
InventorGunnar Ohlin
Life of this patent
Estimating the term…
Abstract
A protective cap (1) for application on a medical device such as a medical vial (2) comprising a membrane holder (3) in which a resilient membrane (18) is mounted. The protective cap (1) is provided with connection means (10) for connecting the cap (1) to the medical device (2). The resilient membrane (18) comprises a piercing portion (20) and a sealing portion (22) and is mechanically and/or adhesively held in the protective cap (1) and is arranged to be brought into sealing contact with a receiving portion of the medical device (2) when the protective cap (1) is applied on the medical device (2).
Claims16
A protective cap having a longitudinal axis for application on a medical device having a sealing member, said protective cap comprising:
- a membrane holder having a first end with an end wall, said end wall having an outer surface and an inner surface and a second end with an end opening at a distance from said first end, said second end being adapted to be placed over a receiving portion of said medical device and being provided with a connection arrangement for connecting said protective cap to said medical device, said end wall of said membrane holder having a holding flange protruding in an axial direction from the outer surface of the end wall, the holding flange defining a piercing opening said piercing opening having a peripheral edge;
- and
- a resilient membrane arranged to cover said piercing opening, said resilient membrane comprising a piercing portion arranged inside said holding flange and a sealing portion defining a cavity,
- wherein said holding flange or said peripheral edge of said membrane holder comprises an attachment arrangement for attaching said resilient membrane to said holding flange or said peripheral edge of said membrane holder, said attachment arrangement being an adhesive attachment or a mechanical attachment or a combination of an adhesive attachment and a mechanical attachment, and
- wherein said resilient membrane is attached in said membrane holder with said piercing portion of said resilient membrane exposed through said piercing opening defined by said holding flange with an exterior edge of said cavity being positioned entirely radially inward from said peripheral edge of said piercing opening relative to said longitudinal axis and said sealing portion extending radially beyond said peripheral edge of said piercing opening and positioned adjacent to said inner surface of said end wall and extending from said inner surface in an axial direction toward said second end of said membrane holder, such that said sealing portion of said resilient membrane is arranged to be brought into sealing contact with said sealing member of said medical device when said protective cap is applied to said medical device.
Dependencies are inferred from the claim text.