Spineguard

Technomed International

Institut National De La Sante Et De La Recherche Medicale

Centre National De La Recherche Scientifique

Sorbonne Université

Louis Vuitton Malletier

Spineguard Vincennes

Iserm

Maurice Bourlion

Stéphane Bette

Paul Dancer

Olivier Frezal

Thibault Chandanson

Dominique Petit

Dominique Cathignol

Jean-Louis Mestas

Guillaume Morel

Gérard Vanacker

Florian Richer

Valentin Kerspern

Ciaran Bolger

Francois Teyssere

Alain Vanquaethem

Stephane Bette

Christopher Raczek

Reinhard Zeller

Marco Brayda-Bruno

Adapters for surgical drilling systems, and methods of use, are provided for performing surgical procedures, such as surgical drilling into bony structures, while guided by a conductivity sensing system. The adapters may be configured to be coupled to a surgical drilling tool such as a conventional surgical drill and a drill bit having conductivity sensing capabilities, or a surgical hand tool having conductivity sensing capabilities. The adapters further include a controller configured to receive one or more signal indicative of measured electrical conductivity and/or penetration depth measurement, detect a condition associated with a change of measured electrical conductivity based on the signal, and arrest advancement of the surgical drilling tool responsive to detection of the condition.

Universal adapter for handheld surgical systems

A medical system comprising: a robotic arm, a control unit configured to issue a control signal, a medical device intended to penetrate an anatomical structure, the medical device being configured to emit a warning signal which varies as a function of a variable electrical characteristic of the anatomical structure, said medical device comprising a body with first and second electrodes, an electric generator suitable for applying at least one measurement electric current between the first and second electrodes, and a processing device suitable for determining a measurement parameter related to the electrical characteristic, based on said at least one measurement electric current, and for emitting the warning signal corresponding to the measurement parameter, wherein the control unit is configured to issue the control signal as a function of the warning signal.

Medical system

Systems, instruments, and methods are provided verifying that a robotic surgery is being performed in accordance with a surgical plan, wherein a surgical tool having a sensor outputs a data signal that enables the trajectory of the surgical tool to be displayed as an overlay on an image of an anatomical portion of a patient and a visual or audible signal that confirms the surgical tool is penetrating the anatomical portion in accordance with the surgical plan and/or that issues an alert indicating that the surgical tool is not being inserted into the anatomical portion according to the surgical plan.

Robotic surgical system

A medical system including a body; a first electrode; a second electrode; an electric generator; and a processing device suitable for determining an electrical characteristic that represents the capacity of the tissue of an anatomical structure between first and second contact surfaces of the first and second electrodes to conduct the electric current, and for emitting a warning signal corresponding to the determined electrical characteristic, the warning signal being intermittent. The processing device is suitable for detecting a variation in the electrical characteristic and for varying at least one variable parameter of the warning signal after a time delay, in accordance with the variation in the electrical characteristic, has elapsed.

A device to monitor penetration of an instrument in an anatomical structure including at least two electrodes, a source of current supplying the at least two electrodes, and means for measuring impedance between the electrodes, wherein the electrodes are located on the penetration instrument, wherein the first electrode has a contact surface coinciding with a distal surface of the penetration instrument and the second electrode has a contact surface coinciding with a lateral surface of the penetration instrument, and wherein the contact surfaces are dimensioned to have a coinciding and constant contact surface as a function of a degree of penetration of the penetration instrument in the anatomical structure.

Devices that monitor penetration of an instrument in an anatomical structure

The invention relates to a system for the consolidation of a bone structure, comprising: a system for determining the quality of the bone structure, including a body, first and second electrodes arranged on the body, an electric generator for applying an electric current, a measurement device for measuring the electric current, and a processing device for determining an electrical magnitude representative of the aptitude of the bone structure for allowing electric current to pass therethrough and for delivering a signal representative of the quality of the bone structure, using the determined electrical magnitude; and a device selected from between an electrical stimulation device for applying an electric bone-growth stimulation and a fixation device for immobilizing the bone structure.

System for the consolidation of an individual's bone structure, comprising a system for determining the quality of the bone structure

The invention relates to a system for determining the quality of a bone structure, comprising: a body adapted for drilling through the bone structure; a first electrode arranged on the body so as to come into contact with the bone structure during drilling; a second electrode arranged on the body so as to come into contact with the bone structure at a distance from the first electrode during drilling; an electric generator adapted to apply an electric current between the first and second electrodes for a pre-determined period of time; a measuring device adapted (i) to measure the electric current, continuously and over the pre-determined period, an electrical magnitude representative of the aptitude of the bone structure for allowing electric current to pass therethrough and (ii) to deliver, continuously and over the pre-determined period, a signal representative of the quality of the bone structure between the contact surfaces of the first and second electrodes, using the determined electrical magnitude.

System for determining the quality of an individual's bone structure

An implant for placement in an anatomical structure includes at least two electrodes separated by an insulator, the electrodes being flush with the surface of the implant to allow the implant to be followed up and guided during insertion in the anatomical structure.

Implant comprising one or more electrodes and corresponding insertion instrument

An exploration device to monitor the penetration of an instrument in an anatomic structure including at least two electrodes; a source of voltage supplying the at least two electrodes; a means for measuring impedance between the electrodes; a means of angular location formed by at least one electrode punctually coinciding with a peripheral surface of the penetration instrument, the coinciding surface of the electrode having a position set off from a longitudinal axis the instrument; and means for detecting a position of the at least one electrode.

Exploration device to monitor the penetration of an instrument in an anatomic structure

The invention relates to a device that can be used to monitor the penetration of a penetration member into anatomical structures and, in particular, bone structures of a living body, the structures having at least two different electrical impedance areas. The device is characterized in that it comprises: at least one impedance meter which can be connected to at least two electrodes, at least one of the electrodes being located at a distal end of the penetration member; and at least one alert device which can produce an alert signal if the impedance meter detects an impedance variation. The invention also relates to a penetration member for the device and to an electronic board for the device.

Device for monitoring penetration into anatomical members

The present invention relates to a method and a device for producing an electric discharge between two electrodes. This method characterized in that the resistance to the passage of the electric arc, at least between the electrodes, is considerably reduced so as to bring it to a resistance value near to or slightly higher than the critical resistance, by interposing at least between the electrodes, an electrically conductive electrolyte contained in an essentially closed reservoir surrounding the electrodes. The invention makes it possible to improve the rate of discharge of an electric current produced between the electrodes, by eliminating substantially completely the latency time.

Method and device interposing an electrically conductive liquid between

A process for degassing a coupling liquid is disclosed, comprising adding to said coupling liquid at least one chemical substance readily taking up gas in a sufficient quantity to absorb said gas substantially completely. This chemical substance is preferably a sulfite of alkaline- or alkaline-earth metal. The invention makes it possible to obtain pressure values of the pressure waves greater than those obtained by conventional physical degassing.

Process for degassing a coupling liquid of a pressure wave generator

The invention relates to an electrical discharge circuit between two electrodes. The circuit includes switch means connected in parallel between the electrodes and constituting a switch that is closed for low frequency currents and that is open for high frequency currents. The discharge circuit may be used to detect and correct the position of an electrode at will, in manner that is simple, reliable, cheap, and suitable for being automated.

Discharge circuit, and use thereof in a method and in apparatus for

The present invention relates to a method and device for discharging an electric current between two electrodes, comprising considerably reducing the resistance to the passage of electric current at least between the electrodes so as to bring it to a resistance value near to or slightly higher than the critical resistance by interposing a conductive electrolyte between electrodes. This improves the rate of discharge of an electric current produced between the electrodes, by eliminating substantially completely the latency time.

Growing community of inventors

Saint-Chamond, France

Maurice Bourlion