Apparatus for long term intravenous administration of diluted incompatible multiple medications

• US 3,941,126 A
• Filed: 08/08/1974
• Issued: 03/02/1976
• Est. Priority Date: 08/08/1974
• Status: Expired due to Term

• Current Assignee: Eugene J. Lubimov, Joseph W. Dietrich
• Original Assignee: Eugene J. Lubimov, Joseph W. Dietrich
• Inventors: Dietrich, Joseph W., Lubimov, Eugene J.
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US05/495,652
• Time in Patent Office: 572 Days
• Field of Search: 128/214 R, 128/214 A, 128/214 C, 128/214.2, 128/227, 222/80, 222/81, 222/426, 222/430
• US Class Current: 604/80
• CPC Class Codes: A61M 39/283 Screw clamps
• CPC Class Codes: A61M 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10

Abstract

An apparatus for intravenous administration of multiple medications of types which tend to be incompatible provides means for diluting the medications separately with a diluent drawn from a common diluent source and for combining the diluted medication at a site proximate to the point of venous entry in order to reduce the opportunity for the medications to mix externally of the body.

Claims

1. An apparatus for diluting, combining, and intravenously injecting a plurality of potentially incompatible substances including medications comprising, in combination:

a. a bottle having a penetrable vented stopper and containing a supply of a selected diluent to be withdrawn through the stopper with the bottle inverted;

b. an integral spike-manifold structure adapted for placement below said bottle and providing a spike adapted to penetrate said stopper and provide a fluid passage therethrough and communicating with said passage a manifold providing a plurality of discharge ports enabling said diluent to be withdrawn from said bottle through said spike and made available for discharge through each of said ports, said manifold structure having a finger grip formation formed integral therewith and adapted to receive an operator'"'"'s fingers for installing said spike;

c. a plural configuration of tubes, sight chambers, valves and vertically disposed calibrated transparent containers supported below said bottle and spike-manifold structure and providing means whereby various incompatible substances such as medications may be isolated in measured amounts and diluted with the same said diluent while remaining in isolation from each other and at individually controlled rates of flow therethrough, each container having a top inlet port, a tube connection between such inlet port and a respective said manifold discharge port, a bottom outlet port and a bottom tube connected thereto and leading downward therefrom, each bottom tube having in its path a sight chamber and a regulator valve for individually regulating the flow therethrough;

d. a mixing-sight chamber having on one upper side a plurality of inlets connected respectively to said bottom tubes for individually receiving and then combining the individually mixed medication-diluent fluids discharged by said containers and on an opposite lower side a discharge port; and

e. a fluid injection assembly including a tube having in its path a further sight chamber and regulator valve and said assembly being connected on one end to said mixing-sight chamber discharge port and on the opposite end to a needle for vein injection.

2. An apparatus as claimed in claim 1 wherein said spike-manifold structure finger grip formations inlcudes a pair of ring members formed integral therewith and adapted to receive an operator'"'"'s fingers for installing said spike.

3. An apparatus as claimed in claim 1 including an auxiliary tube connected between a said manifold discharge port and a said mixing-sight chamber inlet and having a regulator valve associated therewith thereby enabling predetermined quantities of said diluent to bypass all of said containers and to initially mix with the contents thereof in said mixing-sight chamber.

4. An apparatus as claimed in claim 1 wherein at least selected ones of said regulator valves include means for effectively pinching the respective said tubes and index means by which the amount of such pinching can be visually observed.

5. An apparatus as claimed in claim 4 wherein each said selected ones of said valves comprise a body member mounting an index plate, a first aperture for receiving the respective tube to be regulated, a second threaded aperture communicating with and axially oriented perpendicular to the first aperture, and having a sliding plate member therein, and a threaded screw member received by said second aperture and adapted upon being turned to press said plate member against the respective tube to effect said pinching and having an appended index enabling said turning to be referenced to said index plate.

6. An apparatus as claimed in claim 1 including connector means on said containers enabling them to be detachably secured together side by side and comprising a pair of opposed connector bars respectively secured on one end to the tip and bottom of each said container and having the opposite end provided with an open-ended slot, and knob members located on said container top and bottom and adapted to be detachably received in said slots to effect said securement.

7. An apparatus as claimed in claim 1 wherein said spike is conical-shaped and the body thereof is formed in portions of increasing diameter and said passage includes an aperture at an outer pointed end of said spike and a channel communicating therewith and extending lengthwise and internally of said body between said manifold and said aperture.

8. An apparatus as claimed in claim 1 including detachably connector means having respective mating portions secured to the respective said containers whereby a plurality of such containers may be secured together in a side-by-side relation.

9. An apparatus as claimed in claim 1 wherein said mixing sight chamber includes an air filter sized to relieve any tendency for said mixing sight chamber to serve as a flow path between said containers.

10. An integral spike-manifold structure for distributing fluid from a bottle having a penetrable vented stopper and a fluid to be withdrawn through the stopper with the bottle inverted, comprising in combination:

a. a conical-shaped spike portion having a body formed with a pointed end, consecutive body sections of increasing diameter, an aperture in said end and an internal central passage extending through said body;

b. a pair of ring-shaped members appended to said body and enabling finger grasping of said structure; and

c. a manifold portion providing a plurality of discharge ports and internal passages connecting said ports to said body passage enabling fluid from said bottle to be withdrawn through said aperture and discharged through each of said ports.