Ambulatory tubing set with anti-siphon valve

• US 5,226,886 A
• Filed: 12/06/1991
• Issued: 07/13/1993
• Est. Priority Date: 12/06/1991
• Status: Expired due to Term

• Current Assignee: Baxter International Inc.
• Original Assignee: Baxter International Inc.
• Inventors: Palmer, Mitchell J., Skakoon, James G.
• Primary Examiner(s): Mancene, Gene
• Assistant Examiner(s): CHERICHETTI, CINDY
• Application Number:
  US07/804,895
• Time in Patent Office: 585 Days
• Field of Search: 604/151, 604/153, 604/31, 604/246, 604/247, 604/213
• US Class Current: 604/153
• CPC Class Codes: A61M 2039/242 designed to open when a predetermined pressure or flow rate has been reached, e.g. check valve actuated by fluid
• CPC Class Codes: A61M 39/08 Tubes; Storage means specially adapted therefor
• CPC Class Codes: A61M 39/24 Check- or non-return valves
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member

Abstract

An intravenous tubing set is provided with luer connectors, an anti-siphon valve and peristaltic pump engaging means. The anti-siphon valve will permit flow through the intravenous tubing set only when a preselected positive pressure as measured from the proximal end to the distal end of the anti-siphon valve is achieved.

Claims

1. An infusion tubing set including:

proximal connector means for receiving a pharmaceutical fluid;

peristaltic pump engaging means coupled with and in fluid communication with said proximal connector means, said engaging means adapted to be coupled with a peristaltic pump for forcing the pharmaceutical fluid therethrough;

anti-siphon valve means with a proximal end and a distal end, wherein the proximal end of said anti-siphon valve means is coupled with and is in fluid communication with said peristaltic pump engaging means;

wherein said anti-siphon valve means allows flow of fluid therethrough only when a preselected positive pressure differential in the range of 1.5 to 3.5 pounds per square inch is achieved between said proximal end and said distal end thereof;

distal connector means coupled with the distal end of the anti-siphon valve means for receiving fluid from said distal end of said anti-siphon valve means and transmitting said fluid to a patient;

said proximal connector means and said distal connector means are luer connectors;

tubing providing fluid communication between said proximal connector means and said peristaltic pump engaging means, between said peristaltic pump engaging means and said anti-siphon valve means, and between said anti-siphon valve means and said distal connector means; and

said peristaltic pump engaging means includes a section of enlarged tubing with a larger inner diameter than an inner diameter of said tubing; and

a pumping strap parallel with said enlarged tubing.

2. The infusion tubing set of claim 1 further including connecting means at ends of said enlarged tubing which are supported by said pumping strap.