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US 12,715,659 B2Granted
Bag closure and container system for medical liquids incorporating same
AssigneeFresenius Medical Care Holdings, Inc.
InventorsJared Lamb, Evan Harb
Life of this patent
Estimating the term…
Abstract
A bag closure and a container system incorporating the bag closure, are provided. The container system can be used for preparing and holding medical liquids such as peritoneal dialysis solutions. The bag closure can be in the form of an assembly of a bag connector made of a first material, and a nozzle made of a different material. By using two different materials, bonding of the bag closure to a bag of a first material and to a tube of a second, different material, can be facilitated. Alternatively, the bag closure can be of a one-piece, monolithic construction made from a singular material. Methods of making the bag closure and the container system are also provided.
Claims18
A bag closure comprising:
- a bag connector comprising a main body, a first wing, and a second wing, each of the first wing and the second wing extending laterally from a respective opposing side of the main body, the main body comprising an inner surface that defines a nozzle receptacle, and an opening that forms a fluid communication between the nozzle receptacle and an outside of the main body, the bag connector comprising polypropylene;
- and
- a nozzle comprising a hollow body having a wall that defines an interior volume within the hollow body, and at least one orifice that forms a fluid communication between the interior volume and an outside of the nozzle, the nozzle comprising a non-polypropylene thermoplastic, wherein
- the nozzle is seated within the nozzle receptacle of the bag connector, and the least one orifice and the opening are positioned such that a fluid communication is formed between the interior volume of the hollow body and an outside of the bag closure,
- the nozzle comprises a tube seat configured to receive and secure a tube therein, the tube seat comprises the non-polypropylene thermoplastic, and
- the non-polypropylene thermoplastic comprises polycarbonate.
3 more elements
A bag closure comprising:
- a bag connector comprising a main body, a first wing, and a second wing, each of the first wing and the second wing extending laterally from a respective opposing side of the main body, the main body comprising an inner surface that defines a nozzle receptacle, and an opening that forms a fluid communication between the nozzle receptacle and an outside of the main body, the bag connector comprising polypropylene;
- and
- a nozzle comprising a hollow body having a wall that defines an interior volume within the hollow body, and at least one orifice that forms a fluid communication between the interior volume and an outside of the nozzle, the nozzle comprising a non-polypropylene thermoplastic, wherein
- the nozzle is seated within the nozzle receptacle of the bag connector, and the least one orifice and the opening are positioned such that a fluid communication is formed between the interior volume of the hollow body and an outside of the bag closure, and
- the main body comprises a dome protruding from a top end of the main body, the opening being defined through the dome, and the opening being a slot having a length disposed in a direction from a base of the dome to an apex of the dome.
2 more elements
A container system comprising:
- at least one flexible wall defining a compartment, the at least one flexible wall comprising polypropylene;
- and
- a bag closure comprising a bag connector and nozzle, the bag closure comprising a main body, a first wing, and a second wing, the first wing and the second wing each extending laterally from a respective opposing side of the main body, the main body comprising an inner surface that defines a nozzle receptacle, and an opening that forms a fluid communication between the nozzle receptacle and an outside of the main body, the bag connector comprising polypropylene;
- and a nozzle comprising a hollow body having a wall that defines an interior volume within the hollow body, and at least one orifice that forms a fluid communication between the interior volume and an outside of the nozzle, the nozzle comprising a non-polypropylene thermoplastic, wherein
- the bag connector and the nozzle have been formed such that the nozzle is seated within the nozzle receptacle of the bag connector,
- the main body further comprises a dome protruding from a top end of the main body, the opening being defined through the dome, and the opening being a circular through-hole and further comprises a particulate trap that protrudes from the apex of the dome, and
- a fluid communication is formed between the interior volume of the hollow body and the compartment of the at least one flexible wall.
4 more elements
A method comprising:
- forming an assembly of a bag connector and a nozzle, the nozzle comprising a hollow body having a wall that defines an interior volume within the hollow body, and at least one orifice that forms a fluid communication between the interior volume and an outside of the nozzle, the nozzle comprising a tip comprising the at least one orifice, the tip comprising a dome, and the at least one orifice is a slot having a length disposed in a direction from a base of the dome to an apex of the dome, the nozzle comprising a non-polypropylene thermoplastic material, and the forming comprising forming the bag connector around the nozzle to form a bag closure, wherein
- the bag connector comprises a main body, a first wing, and a second wing, each of the first wing and the second wing extending laterally from a respective opposing side of the main body, the main body comprising an inner surface that defines a nozzle receptacle, and an opening that forms a fluid communication between the nozzle receptacle and an outside of the main body, the bag connector comprising polypropylene, and
- the forming results in the nozzle being seated within the nozzle receptacle of the bag connector and the tip of the nozzle extending through the opening and outside of the bag connector such that the least one orifice forms a fluid communication is formed between the interior volume of the hollow body and an outside of the bag closure.
Dependencies are inferred from the claim text.