Parenteral apparatus with one-way valve

• US 4,005,710 A
• Filed: 02/12/1975
• Issued: 02/01/1977
• Est. Priority Date: 02/12/1975
• Status: Expired due to Term

• Current Assignee: Abbott Laboratories Incorporated
• Original Assignee: Abbott Laboratories Incorporated
• Inventors: Zeddies, Armand Al, Muettertis, Andrew John
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US05/549,408
• Time in Patent Office: 720 Days
• Field of Search: 128/214 R, 128/214 C, 128/214.2, 128/227, 128/274, 137/512.1, 137/519, 137/532, 137/533, 137/605
• US Class Current: 604/86
• CPC Class Codes: A61M 2039/2433 Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
• CPC Class Codes: A61M 2039/2453 not being fixed to the valve body
• CPC Class Codes: A61M 39/02 Access sites
• CPC Class Codes: A61M 39/24 Check- or non-return valves
• CPC Class Codes: F16K 15/023 the valve member consisting only of a predominantly disc-shaped flat element
• CPC Class Codes: Y10T 137/7909 Valve body is the weight

Abstract

A one-way valve which permits for positive and sensitive action as well as simplified construction in a parenteral solution administration device. Preferably, the valve is formed of a resilient material with a flat surface on one side and has projections extending from the opposite side to engage a wall surface surrounding an outlet orifice. The disc valve is free to move within the valve body and is laterally spaced therefrom to permit fluid to flow around the sidewall and between the projections.

Claims

1. A one-way valve for use in an apparatus for administering a parenteral solution to a patient comprising a valve body defining opposing end walls and a lateral wall surface with an intake orifice and an outlet orifice in said end walls, a freely movable, flexible valve member having a substantially thin body section with a width of a given dimension positioned between said end walls and spaced from said lateral wall surface, said valve member presenting a substantially solid surface portion facing said intake orifice, a plurality of substantially, uniformly spaced projections extending from said body section in one direction from one side of said valve member and inwardly over said body section within the extended confines of said body section to define a plurality of uniformly spaced openings between said projections in the valve member facing the outlet orifice, said projections having approximately the same height as said given width dimension for said body section and another projection extending from said body section from the other side thereof in a direction opposite to said plurality of projections and positioned substantially centrally with respect to said body section, said valve member constructed and arranged to be freely positioned in said valve body without substantial contact with said lateral wall surface of said valve body.

2. The apparatus as defined in claim 1 wherein said solid surface portion of said flexible valve member is substantially flat.

3. The apparatus as defined in claim 1 wherein said valve body is defined by two opposing telescoping tubular members with the outlet orifice defined by one of the tubular members which is of a smaller diameter.

4. The apparatus as defined in claim 1 wherein said projections are of a uniform dimension.

5. The apparatus as defined in claim 4 wherein said projections are of a rounded configuration and are spaced equidistantly along the periphery of said valve member.

6. The apparatus as defined in claim 5 wherein the rounded members have a diameter smaller than the spacing between them.

7. The apparatus as defined in claim 5 wherein one of said plurality of projections is centrally positioned in said valve member.

8. The apparatus as defined in claim 7 wherein some of said projections are elongated with an arcuate configuration with some of the edges of said projections being coextensive with the edge of said valve body.

9. The apparatus as defined in claim 1 wherein said valve member is composed of a rubber composition.

10. The apparatus as defined in claim 3 wherein said tubular member defining said outlet orifice forms a Y-type tubular junction to which is attached a needle assembly at one end, and a solution container, drip chamber and entry site for a fluid at the opposite end.

11. The apparatus as defined in claim 10 wherein said entry site is composed of a reseal device.