Abstract: A medicament delivery device comprising a housing connected to a base and enclosing an interior, the interior having a fluid channel wherein the fluid channel passes from a first position in the interior, to a second position outside the interior, and to a third position in the interior.

Abstract: A rotary pump for a fluid metering system is provided. The rotary pump reciprocates, and is reversed by a signal from a limit switch that is deflected by an actuator arm on a rotating sleeve of the pump system.

Abstract: A medical device for infusing medical substances has activation buttons accessible on the exterior of the device housing. Activation buttons and corresponding electrical switches within the housing are configured to prevent inadvertent activation of the buttons and therefore inadvertent operation of the switches to initiate a process such as medical substance delivery to the user. The device employs overlap of respective time traces initiated by activation of the activation buttons to determine whether activation is intended and valid. These time traces do not have to be initiated simultaneously or in any particular sequence. The activation buttons can be elastomeric overmolded buttons set within cutouts in the housing, and, when depressed, make physical contact with respective switches.

Abstract: A filling member in a medicament delivery device, the filling member comprising a first conduit that fluidly communicates with a reservoir, and a second conduit that fluidly communicates with a pump and with the first conduit, wherein the filling member provides two-way medicament flow that enters the reservoir via the first conduit, exits the reservoir into the first conduit and the second conduit, and exits the second conduit to the pump.

Abstract: A filling member (43) in a medicament delivery device (1), the filling member (43) includes a first conduit (12) that fluidly communicates with a reservoir (4) and a second conduit (14) that fluidly communicates with a pump (3) and with the first conduit (12), wherein the filling member (43) provides two-way medicament flow that enters the reservoir (4) via the first conduit (12), exits the reservoir (4) into the first conduit (12) and the second conduit (14), and exits the second conduit (14) to the pump (3). The reservoir (4) includes a reservoir tube (44A) having one end that is formed with the reservoir (4), and the reservoir tube (44A) having another end that is press fit to the filling member (43) to establish fluid communication with the reservoir (4).

Abstract: A pump suitable for use in a wearable medical device, such as a patch pump, comprises an axially translatable chamber with an inlet and an outlet, a piston or a diaphragm rotatably received in the chamber, a first valve between the inlet and the chamber, a second valve between the outlet and the chamber, a cam affixed to the chamber, a follower affixed to the piston and in contact with the cam for axially translating the chamber, and a biasing means acting on the chamber for applying a force on the chamber in an axial direction of the chamber to maintain such contact.

Abstract: A medical device for infusing medical substances has activation buttons accessible on the exterior of the device housing. Activation buttons and corresponding electrical switches within the housing are configured to prevent inadvertent activation of the buttons and therefore inadvertent operation of the switches to initiate a process such as medical substance delivery to the user. The device employs overlap of respective time traces initiated by activation of the activation buttons to determine whether activation is intended and valid. These time traces do not have to be initiated simultaneously or in any particular sequence. The activation buttons can be elastomeric overmolded buttons set within cutouts in the housing, and, when depressed, make physical contact with respective switches.

Abstract: A rotary pump for a fluid metering system is provided. The rotary pump reciprocates, and is reversed by a signal from a limit switch that is deflected by an actuator arm on a rotating sleeve of the pump system.

Abstract: A pump suitable for use in a wearable medical device, such as a patch pump, comprises an axially translatable chamber with an inlet and an outlet, a piston or a diaphragm rotatably received in the chamber, a first valve between the inlet and the chamber, a second valve between the outlet and the chamber, a cam affixed to the chamber, a follower affixed to the piston and in contact with the cam for axially translating the chamber, and a biasing means acting on the chamber for applying a force on the chamber in an axial direction of the chamber to maintain such contact.

Abstract: A system and method removing air from a reservoir, the system comprising the reservoir that carries a medicament, a first pump connected to the reservoir that draws the medicament out of the reservoir, an air removal device connected to the first pump that releases air from the medicament, and a second pump connected to the air removal device that delivers the medicament.

Abstract: A pen needle assembly includes an adapter (32, 122, 190, 254, 312) and a needle hub (134, 124, 192, 256, 314) coupled to the adapter. The needle hub is removable from the adapter. The adapter has a distal end for coupling with a pen needle delivery device and a distal end with at least one coupling member for coupling with the needle hub. The needle hub is a distal face forming a skin contact surface and a cannula extending from the distal face. The proximal end of the needle hub includes a coupling member for removably coupling with the coupling member of the adapter.

Abstract: A rotary pump for a fluid metering system is provided. The rotary pump reciprocates, and is reversed by a signal from a limit switch that is deflected by an actuator arm on a rotating sleeve of the pump system. The rotary pump includes a plunger and optional stopper formed from a two-shot molding process, and including seals overmolded onto the head of the plunger and the head of the optional stopper.

Abstract: A medical device controller is provided that avoids unintended user inputs and unwanted medical device operation(s). A controller sends display commands to a graphical user interface (GUI) display to generate a first screen having a swipe field with no moving icons that prompts a user to initiate a designated operation by the medical device. When a valid swipe gesture is inputted, the controller generates a second screen with confirm button that requires a valid user press before the controller undertakes the designated operation, the controller generating and sending a command for the designated operation to the medical device when the controller determines that a valid user press has been inputted to the confirm button. The controller also sends commands to generate a status screen that transitions a rotating progress ring symbol and level indicator in accordance with a selected event to clearly indicate the status of medical device operations.

Abstract: A rotary pump for a fluid metering system is provided. The rotary pump reciprocates, and is reversed by a signal from a limit switch that is deflected by an actuator arm on a rotating sleeve of the pump system. The rotary pump includes a plunger and optional stopper formed from a two-shot molding process, and including seals overmolded onto the head of the plunger and the head of the optional stopper.

Abstract: A medical device with a volume sensor is provided for administering liquid drug therapy to a user. The medical device comprises a flexible reservoir for housing a supply of a liquid drug, a rigid structure with a chamber and a side hole in fluid communication with the flexible reservoir, a plunger mounted inside the chamber and configured to seal one side of the chamber, and a switch implemented to indicate the position of the plunger. When the inside end of the plunger passes the side hole, the switch is activated to transmit a signal indicating liquid volume in the flexible reservoir.

Abstract: An insulin infusion system is provided with a manual insertion device having a dual retraction spring (230) configuration for automatic introducer needle (222) retraction. A button (200) of the insertion device is used to insert the introducer needle (222) and catheter (202), and once the introducer needle (222) and catheter (202) have been fully inserted, a rotating engagement releases the dual retraction springs (230) such that the introducer needle (222) automatically retracts, leaving the catheter (202) in the body of the user. An end of the introducer needle (222) remains in the inserted catheter (202) and/or in the septum (206) of the inserted catheter (202) to provide an uninterrupted fluid path.

Abstract: An insulin infusion system is provided with a manual insertion device having a dual retraction spring (230) configuration for automatic introducer needle (222) retraction. A button (200) of the insertion device is used to insert the introducer needle (222) and catheter (202), and once the introducer needle (222) and catheter (202) have been fully inserted, a rotating engagement releases the dual retraction springs (230) such that the introducer needle (222) automatically retracts, leaving the catheter (202) in the body of the user. An end of the introducer needle (222) remains in the inserted catheter (202) and/or in the septum (206) of the inserted catheter (202) to provide an uninterrupted fluid path.

Abstract: A rotary pump for a fluid metering system is provided. The rotary pump reciprocates, and is reversed by a signal from a limit switch that is deflected by an actuator arm on a rotating sleeve of the pump system.

Abstract: A rotary pump for a fluid metering system is provided. The rotary pump reciprocates, and is reversed by a signal from a limit switch that is deflected by an actuator arm on a rotating sleeve of the pump system.