DRUG OR FLUID DELIVERY DEVICES

• US 20150250940A1
• Filed: 10/07/2013
• Published: 09/10/2015
• 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
• Granted Patent: US 9,629,955 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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.

2. 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

at least one defined fluid path that is preformed within said reservoir, along which the fluid travels to reduce occurrences of said reservoir deleteriously sealing off pockets of fluid as said reservoir is emptied,

wherein said at least one defined fluid path is provided by features in said reservoir selected from a group consisting of;

at least one seal;

at least one material flap;

and at least one textured surface.

3. 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

at least one tube within said reservoir, through which the fluid travels to reduce occurrences of said reservoir deleteriously sealing off pockets of fluid as said reservoir is emptied,

wherein at least one perforation is optionally provided in said tube.

4. 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,

wherein a port of said reservoir is located at a position other than at a top corner of said reservoir, to promote satisfactory emptying of said reservoir as fluid is pumped outwardly therefrom.