Drug or fluid delivery devices

• US 9,629,955 B2
• Filed: 10/07/2013
• Issued: 04/25/2017
• Est. Priority Date: 10/12/2012
• Status: Active Grant

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Inventors: Bresina, Timothy, Robert, Renee, Amborn, Chad
• Primary Examiner(s): VU, QUYNH-NHU HOANG
• Application Number:
  US14/432,375
• Publication Number:
  US 20150250940A1
• Time in Patent Office: 1,296 Days
• CPC Class Codes: A61J 1/10 Bag-type containers
• CPC Class Codes: A61J 1/1493 Containers with shape retaining means, e.g. to support the structure of the container during emptying or filling
• CPC Class Codes: A61M 2205/123 with incorporated reservoirs
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
• CPC Class Codes: A61M 5/14232 Roller pumps
• CPC Class Codes: A61M 5/148 flexible, e.g. independent bagsA61M5/155 takes precedence
• CPC Class Codes: A61M 5/168 Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body flow control in general G05D7/00

Abstract

A drug or fluid delivery device includes a pump having a control module. A cassette is removably mounted to the control module. A reservoir is contained within the cassette, and contains a fluid to be delivered to a patient. A protrusion extends from an interior surface of the cassette, creating and maintaining a crease in the reservoir as the fluid is emptied therefrom, thereby creating a fluid path along which the fluid travels to reduce occurrences of the reservoir deleteriously sealing off pockets of fluid as the reservoir is emptied.

Claims

1. A drug or fluid delivery device, comprising:

a pump having a control module;

a cassette that is removably mounted to said control module;

a reservoir contained within said cassette, said reservoir containing a fluid to be delivered to a patient; and

a protrusion extending from an interior surface of said cassette, said protrusion creating and maintaining a crease in said reservoir as the fluid is emptied from said reservoir in operation of said device, thereby creating a fluid path along which the fluid travels to reduce occurrences of said reservoir deleteriously sealing off pockets of fluid as said reservoir is emptied.