UNIVERSAL PARENTERAL FLUID ADMINISTRATION CONNECTOR

• US 3,783,895 A
• Filed: 05/04/1971
• Issued: 01/08/1974
• Est. Priority Date: 05/04/1971
• Status: Expired due to Term

• Current Assignee: Sherwood Medical Company (Medtronic Plc)
• Original Assignee: Theodore E. Weichselbaum
• Inventors: Weichselbaum, Theodore E.
• Primary Examiner(s): Klinksiek, Henry T.
• Application Number:
  US05/140,139
• Time in Patent Office: 980 Days
• Field of Search: 128/218R,214C,214.2,221,218NV 137/525.1,588 222/81,83,91
• US Class Current: 137/588
• CPC Class Codes: A61M 2005/1623 Details of air intake
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14
• CPC Class Codes: A61M 5/1626 Needle protectors therefor in combination with syringes A61M5/3202; protectors for sharps A61B50/3001
• CPC Class Codes: F16K 24/00 Devices, e.g. valves, for venting or aerating enclosures equalising valves F16K17/00; arrangement or mounting in pipes or pipe systems F16L55/07; venting or aerating as an additional function of steam traps or like apparatus F16T; ventilation of rooms, vehicles, see the appropriate subclass, e.g. F24F
• CPC Class Codes: F16K 24/06 for aerating only F16K24/02 takes precedence
• CPC Class Codes: Y10T 137/86332 Vent and inlet or outlet in unitary mounting

Abstract

A connector for connecting parenteral fluid administration tubing to any one of a plurality of different parenteral fluid supply containers having different closure means. The connector includes threaded means for engagement with the threaded closure portion of one form of such parenteral fluid supply containers and piercing means for piercing a pierceable closure portion of a different form of such containers. The connector further includes an improved anti-siphoning valve providing for venting of the container during withdrawal of the fluid therefrom while preventing undesirable loss of the fluid through the venting means. The venting means includes means for filtering the venting fluid, such as ambient air.

Claims

1. A connector for selectively connecting parenteral fluid administration tubing to parenteral fluid supply containers of first and second different types of constructions wherein the first type of construction has a threaded delivery portion and the second type of construction has a pierceable closure within the delivery portion thereof, comprising a body portion including an outlet for connection with said tubing, and a vent opening for connection to the atmosphere, a cap connected to said body portion and having a lower end wall, an upper open end, and axially extending side walls having threads thereon adapted to threadedly receive the threaded delivery portion of a container of said first type, a spike connected to said body portion and said cap and extending axially upwardly from said lower end wall of said cap, said spike having an upper end tip portion with first and second openings therein adapted to be disposed within a container of said first type, a first passageway extending through said body portion and said spike and connecting said first opening in said tip portion with said outlet for delivering fluid from a container to said tubing, a second passageway extending through said body portion and said spike and connecting said second opening in said tip portion with said vent opening, filter means connected to said vent opening for filtering air from the atmosphere to said vent opening to supply filtered air through said second passageways to said second opening in said tip portion and to a container during delivery of fluid therefrom to said tubing, and check valve means disposed between said filter means and said vent port for preventing fluid from flowing from said second passageway to said filter means, said spike extending axially upwardly a predetermined distance above said upper open end of said cap for receiving the pierceable closure of a supply container of said second type with said tip portion and said first and second openings disposed within the container.

2. The connector of claim 1 wherein said predetermined distance is greater than the axial distance between said lower wall and said open end of said cap.

3. The connector of claim 1 wherein said check valve means comprises a diaphragm having a piecred portion permitting fluid flow from the atmosphere to said container.

4. The connector of claim 3 further including a first tubular element disposed in said vent opening and having a stepped bore therein defining an annular shoulder, said diaphragm engaging said shoudler, and a second tubular element received in said first tubular element to hold the periphery of said diaphragm against said shoulder and secure said diaphragm in said first tubular element, and wherein said filter means are disposed in said second tubular element.

5. The connector according to claim 3 further including a first cover secured over said open end of said cap to enclose said tip portion of said spike prior to use of the connector with a supply container, and a second cover closing said second tubular element when said connector is not in use, said tubular element extending generally normal to the axis of said spike.