Kaerys S.a.

Mallinckrodt, Inc.

Techneme Sarl

Koninklijke Philips Corporation N.v.

Algorithme

Kaerys

Alain Delache

Véronique Delache

Gary L Hansen

Bruce R Bowman

Paul F Emerson

James Leo Campbell

Jacques Souquet

Veronique Castelo

Benoît Parent

Véronique Castelo

Véronique Castelo-Delache

An apparatus () to assist a patient's respiration by delivering air to a patient through a mask (), including a ramp module () connected to a control unit () to provide the control unit with a pressure value Pat mask (), so that when apparatus () starts functioning, the pressure progressively rises until it reaches a treatment pressure PTi, the apparatus further including a comparator connected to ramp module (), at least one device for detecting the patient's breathing parameters and sending them to the comparator, so that the comparator can determine whether an event (E, Eor E) occurs in patient's breathing and to send the corresponding data to ramp module () which provides control unit () with a pressure value Pthat will speed up with respect of time, so that the pressure rise at patient's mask () is accelerated.

Apparatus to assist a patient's breathing with a variable ramp period to rise to treatment pressure

An apparatus to deliver air to a patient through a mask, including an air blower () where the impeller () is rotated by an electromotor including a rotor () and a stator (), the stator having at least three sectors (and), the rotation of the rotor being enabled by changes of the polarity of the sectors, each sector's polarity configuration constituting one step of the rotor's rotation, the apparatus including a driving unit () changing the sectors' polarity when the rotor is at its optimal position, so that the efficiency of the electromotor enables the blower to have fast accelerations and decelerations within one patient's breath step, the breath step consisting of one inspiration and one expiration.

Air assistance apparatus providing fast rise and fall of pressure within one patient's breath

An apparatus () to assist a patient's respiration by delivering air to a patient through a mask, the mask designed to be connected to a first extremity of a tube, the apparatus including: a control unit () to adjust the pressure delivered by a blower (), a first pressure sensor () for sensing pressure PM at the first tube extremity and being connected to the control unit, and a second pressure sensor() for sensing pressure PB at the air output of the blower and being connected to the control unit; so that, when a tube is connected to the mask and connected to the apparatus at its second extremity, the air flowing from the apparatus to the mask, the control unit is able to calculate the airflow at the tube's second extremity from the pressures PM and PB and from the tube's airflow resistance coefficient K.

Air assistance apparatus for computing the airflow provided by only means of pressure sensors

An apparatus and method for making a customized respiratory mask without contacting a facial area of the subject is provided according to the invention. The apparatus includes an image capturing device for capturing an image of the facial area as a three-dimensional representation without contacting a facial area of the subject, a cutting machine, and at least one computer capable of receiving the three-dimensional representation of the image and storing the three-dimensional representation in an associated memory, and which is further capable of converting the three-dimensional representation into a set of commands and controlling the cutting machine using the set of commands to cut a mask blank to form the customized respiratory mask.

Customized respiratory mask and method of manufacturing same

An apparatus and method for treating sleep apnea includes a bilevel flow generator having an alternating current (AC) synchronous motor coupled to a low inertia centrifugal rotor/impeller. The process of acceleration and deceleration of the rotor involves moving from frequency A, amplitude A to frequency B, amplitude B in an optimal linear fashion using the so-called Bresenham algorithm. This is coupled with a tuned increase of the amplitude during the acceleration process which will produce the acceleration using minimum current allowing the use of smaller power supplies. During deceleration the process is accomplished in reverse fashion using a tuned decrease of the amplitude coupled with a special shunt circuit to prevent power supply voltage changes. These changes in amplitude overlay a current feedback mechanism used to prevent loss of synchronization of the motor by changing amplitude. Speed changes can also be timed so as to prevent desynchronization.

Apparatus and method for providing a breathing gas employing a bi-level flow generator with an AC synchronous motor

A device for deviating an electromagnetic beam. The device includes a mirror for reflecting the electromagnetic beam; and first, second and third magnets for generating a magnetic field. The second magnet is located between the first and third magnets. The device further includes a winding which is located within the magnetic field and which is fixed to the mirror. An elastic support is provided for elastically supporting the mirror with respect to the second magnet. Electric current is supplied through the winding to cause the mirror to oscillate with respect to the magnets.

Growing community of inventors

Nice, France

Alain Delache