Injection site
First Claim
Patent Images
1. An injection site for location between a parenteral source of fluid and a patient, which comprises:
- a first inlet to which a conduit from a first liquid container is adapted to be connected;
a second inlet adapted to receive needle-injected medication;
an outlet through which the combined first liquid and injected medication can flow with said outlet adapted for coupling to a conduit;
a main body portion defining a single chamber that communicates with said first and second inlets and said outlet, said chamber having a sloped wall between said first inlet and said outlet, said chamber having a cross-sectional area adjacent said first and second inlets that is greater than the cross-sectional area of said chamber adjacent said outlet, said chamber having a cross-sectional area that is substantially greater than the cross-sectional area of said first inlet;
said second inlet and said outlet being substantially coaxial, whereby the needle is substantially prevented from piercing the chamber, and said chamber being constructed to provide unobstructed flow of the first liquid and medication to said outlet; and
a check valve located in said first inlet and adjacent said chamber.
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Abstract
An injection site is provided in the illustrative embodiment, in which a first inlet (to which a parenteral fluid conduit is connected) and a second inlet (adapted to receive injected medication) are parallely located on one end of a main body portion. An outlet is located on the opposite end of the main body portion, with the second inlet and the outlet being substantially coaxial. The main body portion defines a single chamber that communicates with the inlets and outlet and is constructed to provide unobstructed flow of the parenteral liquid and medication to the outlet.
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Citations
18 Claims
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1. An injection site for location between a parenteral source of fluid and a patient, which comprises:
- a first inlet to which a conduit from a first liquid container is adapted to be connected;
a second inlet adapted to receive needle-injected medication;
an outlet through which the combined first liquid and injected medication can flow with said outlet adapted for coupling to a conduit;
a main body portion defining a single chamber that communicates with said first and second inlets and said outlet, said chamber having a sloped wall between said first inlet and said outlet, said chamber having a cross-sectional area adjacent said first and second inlets that is greater than the cross-sectional area of said chamber adjacent said outlet, said chamber having a cross-sectional area that is substantially greater than the cross-sectional area of said first inlet;
said second inlet and said outlet being substantially coaxial, whereby the needle is substantially prevented from piercing the chamber, and said chamber being constructed to provide unobstructed flow of the first liquid and medication to said outlet; and
a check valve located in said first inlet and adjacent said chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a first inlet to which a conduit from a first liquid container is adapted to be connected;
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11. An injection site for location between a parenteral source of fluid and a patient, which comprises:
- a first inlet to which a conduit from a first liquid container is adapted to be connected;
a second inlet adapted to receive needle-injected medication;
an outlet through which the combined first liquid and injected medication can flow with said outlet adapted for coupling to a conduit;
a main body portion coupling said first and second inlets to said outlet, said second inlet and said outlet being substantially coaxial, whereby the needle is substantially prevented from piercing the chamber;
said main body portion defining a single chamber the wall of which is continuous and without projections, said chamber communicating with said first and second inlets and said outlet;
said chamber having a sloped wall between said first inlet and said outlet with said chamber having a cross-sectional area adjacent said first and second inlets that is greater than the cross-sectional area of said chamber adjacent said outlet; and
a check valve located in said first inlet and adjacent said chamber. - View Dependent Claims (12, 13, 14, 15, 16)
- a first inlet to which a conduit from a first liquid container is adapted to be connected;
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17. An injection site comprising a first inlet to which a conduit from a first liquid container is adapted to be connected;
- a second inlet adapted to receive injected medication;
an outlet through which the combined first liquid and injected medication can flow with said outlet adapted for coupling to a conduit;
a main body portion defining a single chamber that communicates with said first and second inlets and said outlet, said chamber having a cross-sectional area that is substantially greater than the cross-sectional area of said first inlet; and
said chamber being constructed to provide unobstructed flow of the first liquid and medication to said outlet; and
further including a check valve located in said first inlet and adjacent said chamber, said check valve comprising a disc normally in an uppermost position of a valve chamber to block fluid flow, but adapted to be forced downwardly in said valve chamber during use of said injection site to permit fluid flow.
- a second inlet adapted to receive injected medication;
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18. An injection site comprising a first inlet to which a conduit from a first liquid container is adapted to be connected;
- a second inlet adapted to receive injected medication;
an outlet through which the combined first liquid and injected medication can flow with said outlet adapted for coupling to a conduit;
a main body portion coupling said first and second inlets to said outlet, said main body portion defining a single chamber the wall of which is continuous and without projections, said chamber communicating with said first and second inlets and said outlet;
said first and second inlets being parallelly positioned; and
further including a check valve located in said first inlet and adjacent said chamber said check valve comprising a disc normally in an uppermost position of a valve chamber to block fluid flow, but adapted to be forced downwardly in said valve chamber during use of said injection site to permit fluid flow.
- a second inlet adapted to receive injected medication;
Specification