Wearable infusion device and system

• US 8,905,974 B2
• Filed: 01/09/2013
• Issued: 12/09/2014
• Est. Priority Date: 11/11/2009
• Status: Active Grant

• Current Assignee: Calibra Medical, Inc. (CeQur SA)
• Original Assignee: Calibra Medical, Inc. (CeQur SA)
• Inventors: Carter, Brett, McKenzie, John, Adams, John M., Cross, Brett, Marsot, Travis
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): Landry, II, Gerald
• Application Number:
  US13/737,859
• Publication Number:
  US 20130123709A1
• Time in Patent Office: 699 Days
• Field of Search: 604/180, 604/181, 604/192, 604/389, 604/164.01, 604171-174
• US Class Current: 604/180
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2005/1588 having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14
• CPC Class Codes: A61M 5/1626 Needle protectors therefor in combination with syringes A61M5/3202; protectors for sharps A61B50/3001
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066

Abstract

Disclosed is a drug infusion system comprising a drug infusion device having a reservoir, a window for viewing the contents of the reservoir, a cannula arranged to be deployed beneath the skin of a patient, and an actuator configured to be manually actuated to drive a medicament from the reservoir to the cannula. The system also has a cannula cover and a needle handle that holds a needle for insertion into the patient. The cannula cover and needle handle are detachably attached to the drug infusion device, and each is attachable to the other. The device further comprises a septum and a septum pincher to seal the device. The device also comprises a pumping mechanism, part of which are a last-dose lock-out mechanism and an occlusion detection mechanism, both of which operate on the same actuator.

Claims

1. A drug infusion device comprising:

a housing

a skin-adherable surface forming one surface of the housing;

a reservoir within the housing for holding a medicament;

a cannula extending from the housing and arranged to be deployed beneath the skin of a patient that delivers the medicament to the patient;

an actuator to drive a medicament from the reservoir to the cannula;

an insertion needle port in the housing that receives an insertion needle and which fluidly communicates with the cannula;

a septum configured to seal the insertion port;

a septum pincher configured to press against the septum to assist the septum in sealing the insertion needle port; and

a last-dose lock-out mechanism and an occlusion detection mechanism, wherein both the last-dose lock-out mechanism and the occlusion detection mechanism are configured to operate on the same actuator.