Roche Diagnostics International Ag

Roche Diagnostics Operations, Inc.

Ypsomed Ag

Roche Diabetes Care, Inc.

Disetronic Licensing Ag

Roche Diagnostics Gmbh

Tecpharma Licensing Ag

F. Hoffmann-la Roche Ag

Stefan Lindegger

Reto Sigrist

Bernd Roesicke

Michael Marquant

Gregor Bainczyk

Otto Gaa

Michael Schoemaker

Joerg Scherer

Markus Oberli

Karin Schwind

Andreas Menke

Sandro Niederhäuser

Karin Obermaier

Martin Mueri

Reto Schrotberger

Paul J Galley

Jean-Noel Fehr

John F Price

Kurt Friedli

Richard W Wilson

Nicole Bernini

Robin S Wagner

Thomas Buri

Marshall M Parker

Michael Gentz

Philip Etter

Thomas Leuzinger

Marc Labudde

Bernhard Rytz

Mathias Zenger

Martin Bruegger

Alex Muri

Robert Nissels

Michael Rufer

Adrian Wyss

Alex Mueri

Andreas Schlaeppi

Alan M Greenburg

Martin Müri

Jörg Scherer

Alex Müri

Urs Kipfer

Implementations relate to a method for establishing an end-to-end encrypted data communication link between a portable medical apparatus and a data-management device. The method comprises at least the following steps: out-of-band transmission of a public key from the medical apparatus to the data-management device, wherein the transmission does not take place via Bluetooth; setting up an encrypted Bluetooth data communication link between the medical apparatus and the data-management device; transmitting a public key from the data-management device to the medical apparatus via the Bluetooth link that has been set up; calculating a combined key on the data-management device and on the medical apparatus; setting up an end-to-end encrypted link between the medical apparatus and the data-management device using the combined key, such as a symmetrical, key.

Secure communication link between medical apparatuses of a data-management device

The safety and reliability of drug delivery systems are improved by the use of smartphones for calculating safety critical delivery parameters. A drug delivery device is adapted to perform a drug delivery operation based on an unconfirmed drug delivery instructions determined by a processing unit of a control device by applying a basic mathematic operation to control device input data. The drug delivery device comprises a communication module to receive, from the control device, the basic mathematic operation and the control device input data, and a redundancy module to determine a redundant drug delivery instructions by applying the basic mathematic operation to the control device input data received from the control device. The drug delivery device is adapted to prevent execution of the drug delivery operation if the unconfirmed drug delivery instructions and the redundant drug delivery instructions are found, by a comparator module, to conflict.

Safety-critical drug delivery parameter determination

Disclosed is a measuring bridge arrangement containing: a measuring bridge comprising at least one first half bridge having a first measuring connection and a second half bridge having a second measuring connection; a reference voltage divider having at least one first and a second test connection; a differential amplifier having at least one first and a second amplifier input and at least one amplifier output, a voltage amplification, and having an output voltage working range. In the arrangement, the first amplifier input is wired to a first capacitor and the second amplifier input is wired to a second capacitor, and the amplifier inputs can be selectively connected to the measuring connections or to the test connections.

Measuring bridge arrangement with improved error detection

A device and method for delivering insulin to a patient is disclosed. The method includes receiving an amount of insulin to deliver to a patient and beginning delivery of the insulin to the patient. The method further includes monitoring the delivery of the insulin to determine whether the insulin pump is able to deliver the entire amount of insulin and maintaining a timer until the insulin pump recommences the delivery of the insulin. The method includes comparing an amount of time indicated by the timer to a threshold. The method further includes generating a first insulin delivery record indicating that a first amount of insulin was delivered when the amount of time indicated by the timer is less than the threshold and a second insulin record indicating that a second amount of insulin was delivered when the amount of time indicated by the timer is greater than the threshold.

Insulin pump and methods for operating the insulin pump

The analyte concentration, such as glucose, in a human or animal body is measured with an implantable sensor that generates measurement signals. The measurement signals are compressed through statistical techniques to produced compressed measurement data that can is easier to process and communicate. A base station carries the implantable sensor along with a signal processor, memory, and a transmitter. A display device is also disclosed that can receive the compressed measurement data from the base station for further processing and display.

Method of compression data from in-vivo measurements of an analyte concentration in a human

An ambulatory infusion device comprising a replaceable energy storage for electrically powering its functional units is presented. Control units provide to a monitoring system data about energy consuming activities or consumed energy by the functional units. Based on this data, the monitoring system determines energy consumed by the functional units and triggers measurement of the voltage of the energy storage at a point in time which depends on the determined energy consumed in a time interval preceding the point in time. Adapting the time of measurement to the actual energy drawn from the energy storage makes it possible to detect reliably and early a low energy state of any conventional standard battery, regardless of its electrochemical design and electrical behavior.

Ambulatory infusion device with replaceable energy storage and method of monitoring the energy storage

An ambulatory infusion device for infusion of a liquid drug into a patient's body over an extended period of time and methods thereof are disclosed. The device includes a sensor assembly, which produces a sensor assembly output based on an infusion characteristic of the ambulatory infusion device and based on a supply voltage/current, and a supply unit which is coupled to a sensor of the sensor assembly and generates the supply voltage/current. A sensor testing unit detects a failure of the sensor assembly, wherein the sensor testing unit is coupled to the sensor assembly and the supply unit, and the sensor testing unit carries out a sensor testing sequence. The sensor testing sequence includes controlling the supply unit so as to produce a variation of the supply voltage/current, and determining whether the variation of the supply voltage/current produces a corresponding variation of the sensor assembly output.

Ambulatory infusion device with sensor testing unit

The present disclosure relates to an accommodating device for a dispensing or infusion device, comprising: a displaceable element which is displaced within the accommodating device when a cartridge is inserted into the accommodating device; and at least one sensor which can detect the presence or absence of the displaceable element or a detection element disposed on or in the displaceable element.

Device and methods for cartridge detection

An apparatus for metered supply of a liquid medicament having a power supply which not only allows the primary battery to be replaced without interrupting the insulin supply, but also makes it possible to bridge uncontrolled short-term interruptions in the current supply or voltage supply resulting from bouncing of the battery contacts, while also providing an adequate emergency power reserve is disclosed.

Uninterruptible power supply for a medical appliance

System for in-vivo measurement of an analyte concentration

A system for transmission of medical data comprises a first device which is designed to be worn on the body of a patient and which generates medically relevant data when in operation, said data being transmitted wirelessly to a second device. The first device comprises a communication unit for the wireless communication with the second device, a circuit which generates medically relevant data when in operation and a handover memory for the intermediate storage of data that are to be transferred from the circuit to the communication unit or from the communication unit to the circuit. The data generating circuit is connected to the handover memory via a first data line and the communication unit is connected to the handover memory via a second data line. The first device comprises a change-over switch closing the first data line and interrupting the second data line in a first switched state and interrupting the first data line and closing the second data line in a second switched state, said change-over switch changing between the first and second switched state without communication with the data generating circuit.

Medical data transmission system

A device including a display for displaying operational and/or functional parameters of the device and a control unit with at least one control element for controlling the display and/or device, wherein the display is at least partly rotatable with respect to the device, and/or wherein the position of the at least one control element is modifiable or changeable with respect to the device. In some embodiments, the control functions of at least two control elements of the device are interchangeable. In some embodiments, the display is provided by data sent to the display at intervals, whereby the display is updated. In embodiments in which several display parts are rotatable, data is processed by a processing module prior to being sent to the display. A method of display and/or display and control manipulation is encompassed.

Device with Display and control

Growing community of inventors

Huttwil, Switzerland

Stefan Lindegger