Sensome Sas

Centre National De La Recherche Scientifique

Ecole Polytechnique

Ecole Normale Superieure De Cachan

Sensome

Bruno Carreel

Franz Bozsak

Bruno Le Pioufle

Olivier Francais

Pierluca Messina

Myline Cottance

Abdul Barakat

Edward I Wulfman

Yvan Eric Bonnassieux

Guillaume Lecourt

Gor Lebedev

Embodiments described relate to a medical device including an invasive probe such as a guidewire that, when inserted into a duct (e.g. vasculature) of an animal (e.g., a human or non-human animal, including a human or non-human mammal), may be used to aid in diagnosing and/or treating a lesion of the duct (e.g. a growth or deposit within vasculature that fully or partially blocks the vasculature). The invasive probe may have one or more impedance sensors to sense characteristics of the lesion, including by detecting one or more characteristics of tissues and/or biological materials of the lesion. There is further described a method of assembling such a medical device.

Insertable device for in vivo sensing

The invention relates to a medical device () comprising an electrical measurement circuit (), in which are connected at least two variable-impedance sensors (), the impedance of which varies according to a detected physical quantity, an electrical power source () for supplying power to the electrical measurement circuit (), an antenna () for emitting an electromagnetic field according to the impedance of the electrical measurement circuit (), each of the sensors () being associated with a switch () for interrupting the current supply of the sensor () in said measurement circuit (), the medical device () additionally comprising a system () for controlling the switches () in order to successively control the opening or the closing of the switches (), according to determined configurations. The medical device () may in particular be applied to the human body or implanted within the human body.

Medical device provided with sensors

A medical device including an electric measurement circuit, in which are connected at least two sensors the impedance of which varies as a function of a sensed physical parameter, a source of electrical power for powering the electric measurement circuit, an antenna for emitting an electromagnetic field as a function of the impedance of the electric measurement circuit, each of the sensors being associated with a switch for short circuiting the sensor in the measurement circuit, the medical device further including a system for controlling the switches in order successively to command the opening or closing of the switches in determined configurations. The medical device may notably be able to be applied to the human body or implanted in the human body.

Medical device equipped with sensors

The invention relates to a method for discriminating cells of a cellular structure, notably of a cellular tissue, comprising the steps consisting in determining () a frequency spectrum of the impedance of the cellular structure; defining () at least one model of the impedance of the cellular structure including a constant phase element (); determining () the impedance of the constant phase element () which optimizes the correlation of each model of the impedance of the cellular structure with the spectrum; and deducing (), from the impedance of the constant phase element () or from the impedances of the constant phase elements (), an item of information on the cells of the cellular structure. The invention also relates to a system for implementing the method for discriminating cells of a cellular structure.

Method for determining at least one type and/or condition of cells and system

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Paris, France

Bruno Carreel