Devices and methods for delivering a beneficial agent to a user

Patent metadata

Field	Value
Publication number	US-2022379011-A1
Application number	US-202217749629-A
Country	US
Kind code	A1
Filing date	May 20, 2022
Priority date	Dec 31, 2013
Publication date	Dec 1, 2022
Grant date	—

Abstract

A device for delivering a beneficial agent is provided and generally includes a cassette, a pump, and a delivery tube. The pump includes a pump housing containing a pump assembly having a fluid drive component. The pump housing has a receiving region disposed proximate the fluid drive component and further includes a rear closure portion. The rear closure portion includes a membrane disposed between the receiving region and the fluid drive component. The cassette includes a cassette housing, which has a cassette body region defining a fluid reservoir chamber therein. The cassette further includes a cassette base region having a boundary configured to be received by the receiving region.

First claim

1 . A device for delivering a beneficial agent, comprising:
a pump including a pump housing containing a pump assembly having a fluid drive component, the pump housing having a receiving region disposed proximate the fluid drive component, the pump housing comprising a rear closure portion including a membrane disposed between the receiving region and the fluid drive component, the membrane having a molded shape configured to conform to at least one feature of the pump housing; and a cassette including a cassette housing comprising a cassette body region defining a fluid reservoir chamber therein, and a cassette base region having a boundary configured to be received by the receiving region.

2 . The device of claim 1 , wherein the rear closure portion includes a slot proximate a lateral edge of the receiving region, the membrane being molded over the slot and defining a protrusion extending to said lateral edge of the receiving region.

3 . The device of claim 2 , wherein the slot comprises a plurality of edges to support the membrane, the membrane being molded over the edges.

4 . The device of claim 1 , wherein the receiving region includes a support rib proximate to the rear closure portion, the membrane being molded over the support rib.

5 . The device of claim 2 , wherein the fluid drive component comprises a plurality of finger plates disposed along a length of a cam shaft and configured to protrude from the slot to engage an interior surface of the membrane during rotation of the cam shaft.

6 . The device of claim 1 , wherein the cassette comprises a delivery tube assembly extending from the fluid reservoir chamber, the delivery tube assembly comprising a peristaltic tube in functional relationship to the fluid drive component with the membrane disposed therebetween when the cassette base region boundary is received by the receiving region.

7 . The device of claim 6 , wherein the fluid drive component comprises a plurality of finger plates configured to push on the peristaltic tube with the membrane disposed between the plurality of finger plates and the peristaltic tube.

8 . The device of claim 6 , wherein the membrane has a curvature corresponding to a curvature of the peristaltic tube.

9 . The device of claim 6 , wherein the peristaltic tube is secured at an inlet end and an outlet end thereof, the membrane having a curvature proximate the inlet end and the outlet end corresponding to a position of the finger plates when the peristaltic tube is engaged by the finger plates at the inlet end and the outlet end.

10 . The device of claim 6 , wherein the peristaltic tube engages an occlusion sensor proximate the rear closure portion when the cassette base region boundary is received by the receiving region.

11 . The device of claim 10 , wherein the membrane includes an occlusion sensor protrusion configured to surround a portion of the occlusion sensor.

12 . The device of claim 11 , wherein the occlusion sensor protrusion has a thickness greater than a remainder of the membrane.

13 . The device of claim 1 , wherein the membrane comprises Elastollan S95A55N material.

14 . The device of claim 1 , comprising a lock member coupled to the pump housing and movable between an open position and a closed position, the cassette capable of being inserted into and removed from the receiving region when the lock member is in the open position, and the cassette being secured to the pump with the cassette base region within the receiving region.

15 . The device of claim 14 , comprising a delivery tube fluidly coupled with the fluid reservoir, wherein a length of the delivery tube is operatively engaged with the fluid drive component when the lock member is in the closed position.

Assignees

• Abbvie Inc

Inventors

• Anderson Phil
• Novak Kevin
• Mclennan Kevin
• Mackaplow Michael
• Song Guiyong
• Dhami Gurjinder Singh
• Jasperson Benjamin Alan
• Smieja Scott
• Svacina Matthew

Classifications

• A61M2205/12

  with interchangeable cassettes forming partially or totally the fluid circuit · CPC title

• A61M5/14228 Primary

  with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member · CPC title

• A61M5/142 Primary

  Pressure infusion, e.g. using pumps · CPC title

• A61M2205/8206

  battery-operated · CPC title

• A61M2205/6027

  Electric-conductive bridges closing detection circuits, with or without identifying elements, e.g. resistances, zener-diodes · CPC title