Connection assembly for directing a medical liquid
AssigneeFresenius Kabi Deutschland GmbH
InventorTorsten Brandenburger
Life of this patent
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Abstract
A sealing element is received between a connector and an attachment member. The sealing element includes a foot section received by a recess of the connector, a shoulder engaging an inner surface of the attachment member, and a flange engaging a support surface of the connector. The sealing element also includes a cylindrical body extending from the shoulder to the flange along an insertion direction and, where the cylindrical body deforms to create a flow path through the sealing element, and a sealing head defines an opening that transitions from a closed state to an open state when the cylindrical body deforms.
Claims28
A sealing element configured to be received between a connector and an attachment member, the sealing element comprising:
- a shoulder configured to engage an inner surface of the attachment member;
- a flange having a lower surface extending radially along a lateral axis transverse to a longitudinal axis of the sealing element, the lower surface being configured to rest directly on a support surface of the connector;
- a foot section extending longitudinally from the flange, the foot section being configured to be received within a recess defined by the support surface of the connector;
- a cylindrical body extending longitudinally from the shoulder to the flange, an outer diameter of the cylindrical body having a substantially constant diameter;
- and
- a sealing head extending longitudinally from the shoulder, the sealing head defining an opening that is configured to transition from a closed state to an open state when the cylindrical body deforms;
- and
- a cylindrical section extending longitudinally from the sealing head to the shoulder,
- wherein an outer diameter of cylindrical section is smaller than the outer diameter of the cylindrical body,
- wherein an outer diameter of the shoulder is larger than the outer diameter of the cylindrical body, and
- wherein an outer diameter of the flange is larger than an outer diameter of the foot section.
A connection assembly configured to deliver a liquid from a delivery device to a container, the connection assembly comprising:
- a connector having a support surface that defines a recess, the connector being configured to connect to the container;
- an attachment member having an inner surface, a lumen, a first end configured to be connected to the delivery device, and a second end connected to the connector;
- and
- a sealing element disposed in the lumen between the connector and the attachment member, the sealing element comprising:
- a shoulder configured to engage the inner surface of the attachment member;
- a flange having a lower surface extending radially along a lateral axis transverse to a longitudinal axis of the sealing element, the lower surface resting directly on the support surface of the connector;
- a foot section extending longitudinally from the flange, the foot section being received within the recess defined by the support surface of the connector;
- a cylindrical body extending longitudinally from the shoulder to the flange, an outer diameter of the cylindrical body having a substantially constant diameter;
- and
- a sealing head extending longitudinally from the shoulder, the sealing head defining an opening that is configured to transition from a closed state to an open state when the cylindrical body deforms;
- and
- a cylindrical section extending longitudinally from the sealing head to the shoulder,
- wherein an outer diameter of cylindrical section is smaller than the outer diameter of the cylindrical body,
- wherein an outer diameter of the shoulder is larger than the outer diameter of the cylindrical body, and
- wherein an outer diameter of the flange is larger than an outer diameter of the foot section.
Dependencies are inferred from the claim text.