Safety fluid transfer cannula
First Claim
1. A system for transferring fluid between a vial and a cannula, comprising:
- a vial having a flexible stopper;
a cannula body having first and second opposite end;
said first end terminating in a solid tip for penetrating the flexible stopper;
said body having a passage opening through said second end and extending within said cannula body towards said first end, said passage opening through at least one non axially oriented, port through a side surface of the cannula body thereby to enable flow of fluid along said passage and between the opening through said second end and said side port; and
wherein an axial width of said port is smaller than a thickness dimension of the flexible vial stopper through which the cannula tip is to be inserted.
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Accused Products
Abstract
A cannula for transferring fluid relative to a vial or intravenous port having an elastomeric membrane includes: a cannula body having first and second opposite ends; the first end terminating in a tip for penetrating the elastomeric membrane; the body having a passage opening through the second end and extending within the cannula body towards the first end, the passage opening through at least one horizontal-oriented port through a side surface of the cannula body thereby to enable flow of fluid along the passage and between the opening through the second end and the side port. An axial width of the port is smaller than a thickness dimension of a vial through which the cannula tip is to be inserted. A related method is also described.
92 Citations
23 Claims
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1. A system for transferring fluid between a vial and a cannula, comprising:
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a vial having a flexible stopper;
a cannula body having first and second opposite end;
said first end terminating in a solid tip for penetrating the flexible stopper;
said body having a passage opening through said second end and extending within said cannula body towards said first end, said passage opening through at least one non axially oriented, port through a side surface of the cannula body thereby to enable flow of fluid along said passage and between the opening through said second end and said side port; and
wherein an axial width of said port is smaller than a thickness dimension of the flexible vial stopper through which the cannula tip is to be inserted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A cannula for transferring fluid relative to a vial or intravenous port having an elastomeric membrane, comprising:
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a cannula body having first and second opposite ends;
said first end terminating in a solid tip for penetrating the elastomeric membrane;
said body having a passage opening through said second end and extending within said cannula body towards said first end, said passage opening through at least one port through a side surface of the cannula body thereby to enable flow of fluid along said passage and between the opening through said second end and said port;
a stop carried by said cannula body for engaging the membrane upon penetration of a portion of the cannula body through the membrane to locate at least a portion of the port on the opposite side of the membrane from the second end; and
wherein said port has an oval or elliptical shape and is substantially non axially oriented. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A pair of components connected to one another comprising a first component formed at one end with Luer lock threads surrounding a center cone;
- and a second component having a center recess at one end thereof in which said center cone is received, to establish a Luer slip connection between the components wherein said Luer lock threads are not engaged by said second component.
- View Dependent Claims (22, 23)
Specification