Infusion Pump System and Method

Patent metadata

Field	Value
Publication number	US-2016354544-A1
Application number	US-201615240208-A
Country	US
Kind code	A1
Filing date	Aug 18, 2016
Priority date	Jun 3, 2013
Publication date	Dec 8, 2016
Grant date	—

Abstract

Some embodiments of an infusion pump system may be configured to detect when at least one component of the pump system is exposed to a moisture level above a threshold level. In particular embodiments, the infusion pump system can be equipped with a moisture level detection system that can sense when a moisture level above the threshold level has occurred to the pump device, which thereby enables the infusion pump system to initiate one or more patient safety countermeasures.

First claim

1 .- 20 . (canceled)

21 . A medical infusion pump system, comprising:
a portable housing defining a space to receive a medicine; a pump drive system to dispense medicine from the portable housing when the medicine is received in the space; control circuitry that electrically communicates with the pump drive system to control dispensation of the medicine from the portable housing when the medicine is received in the space; and hydrophilic foam material positioned in the portable housing and in electrical communication with the control circuitry, the control circuitry being adapted to detect the absorption of moisture into the hydrophilic foam material.

22 . The medical infusion pump system of claim 21 , wherein the control circuitry is adapted to provide an indication of the moisture level in the portable housing.

23 . The medical infusion pump system of claim 21 , wherein the control circuitry is adapted to determine if a moisture level in the portable housing is greater than or equal to a predetermined threshold level of moisture.

24 . The medical infusion pump system of claim 23 , wherein the control circuitry is configured to initiate an alarm in response to the indication that the moisture level in the portable housing is greater than or equal to the predetermined threshold level of moisture.

25 . The portable infusion pump system of claim 24 , wherein, in response to the indication that the moisture level in the portable housing is greater than or equal to the predetermined threshold level of moisture, the control circuitry is configured to disable the drive system, activate an audible alarm, and display of one or more messages on a user interface display located on the portable housing.

26 . The portable infusion pump system of claim 22 , wherein the indication of the moisture level in the portable housing is based on a change in electrical resistance of the hydrophilic foam material.

27 . The medical infusion pump system of claim 21 , wherein the control circuitry is housed in a controller housing that is removably attachable to the portable housing.

28 . The medical infusion pump system of claim 21 , wherein the pump housing defines one or more liquid weep holes.

29 . The medical infusion pump system of claim 28 , wherein the one or more liquid weep holes have a predefined size for passage of liquid through the outer wall the pump housing after a submersion in liquid at a particular threshold depth or greater and for a particular threshold duration of time.

30 . The medical infusion pump system of claim 28 , wherein the one or more liquid weep holes are positioned adjacent the hydrophilic foam material.

31 . A method of controlling a portable infusion pump system, comprising:
sensing that a hydrophilic foam material positioned in a portable infusion pump system has a change in an electrical resistance; and in response to the sensing that the change in an electrical resistance exceeds a threshold, disabling a pump drive system housed in the portable infusion pump system.

32 . The method of claim 31 , further comprising in response to the sensing that the change in an electrical resistance exceeds a threshold, emitting an audible alarm.

33 . The method of claim 32 , further comprising in response to the sensing that the change in an electrical resistance exceeds a threshold, displaying one or more alert messages on a user interface display of the portable infusion pump system.

34 . The method of claim 33 , further comprising in response to the sensing that the change in an electrical resistance exceeds a threshold, activating a light source of the portable infusion pump system that is different from the user interface display.

35 . The method of claim 31 , wherein the portable infusion pump system defines one or more liquid weep holes.

36 . The method of claim 35 , wherein the one or more liquid weep holes have a predefined size for passage of liquid through an outer wall a pump housing of the portable infusion pump system after a submersion in liquid at a particular threshold depth or greater and for a particular threshold duration of time.

37 . The method of claim 36 , wherein the one or more liquid weep holes are positioned adjacent the hydrophilic foam material.

38 . A portable infusion pump system, comprising:
a pump device including a pump housing that defines a space to receive a medicine, a drive system positioned in the pump housing to dispense the medicine from the pump device when the medicine is received in the space of the pump housing, and a hydrophilic foam material positioned in the pump housing; and a controller device removably attachable to the pump housing so as to electrically connect with the pump device, wherein the controller device houses control circuitry configured to communicate with the drive system positioned in the pump housing to control dispensation of the medicine from the pump device, the control circuitry being adapted to detect the absorption of moisture into the hydrophilic foam material.

39 . The medical infusion pump system of claim 38 , wherein the pump housing defines one or more liquid weep holes positioned adjacent the hydrophilic foam material.

40 . The medical infusion pump system of claim 39 , wherein the one or more liquid weep holes have a predefined size for passage of liquid through the outer wall the pump housing after a submersion in liquid at a particular threshold depth or greater and for a particular threshold duration of time

Assignees

• Bigfoot Biomedical Inc

Inventors

• Brewer Tracy
• Qi Wenkang
• Vandencrommenacker Johannes T

Classifications

• A61M5/14566

  with a replaceable reservoir for receiving a piston rod of the pump · CPC title

• A61M5/14248

  of the skin patch type · CPC title

• A61M5/50

  having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile {(retractable needles or needle protectors with means for preventing re-use A61M5/321)} · CPC title

• A61M2205/02

  characterised by a particular materials · CPC title

• A61M2205/587

  Lighting arrangements · CPC title