Arrow International Limited

Technomed International

Technomed Medical Systems

Institut National De La Sante Et De La Recherche Medicale

Arrow International Investment Corp.

Arrow International Investments Corp.

Gerard Hascoet

Thierry Pechoux

Francois Lacoste

Marian A Devonec

Muriel Cathaud

Paul Perrin

Jean-Marie Jacomino

Dominique Cathignol

Emmanuel Blanc

Bernard Lacruche

Jean-Louis Mestas

Francedillaois Lacoste

The present invention relates to a method and associated apparatus for improving the accuracy with which the speed of a fluid, such as a liquid, in particular blood flowing in a duct, such as a blood vessel, in particular the aorta, is measured by means of a signal emitted by a Doppler transducer (). In characteristic manner, according to the method, the Doppler transducer is associated with a programmable memory () which contains at least one correction data item for correcting the Doppler signal transmitted by the transducer () to a transducer control and computer unit (). Said computer unit () incorporates said signal correction data item in its computation (at) of each speed measurement on the basis of each signal emitted by the Doppler transducer, and it computes the speed value while taking account of said correction data item so as to provide a corrected measurement of the speed of said fluid, thereby improving its accuracy.

Method and apparatus for improving the accuracy with which the speed of a fluid is measured

The invention relates to a device for protecting a cover. According to the invention, said cover is flexible and tubular in shape being closed at one end and open at its other end, and said cover is disposed at least in part inside a hollow tubular protective element referred to as a protective tube, which element is open at both ends. The device of the invention is particularly suited for use in the medical field, in particular for covering, preferably in sterile manner, a tool that is to be inserted in an animal or a human being, in particular in a natural passage such as the esophagus, the urethra, the rectum, or a blood vessel.

Device for protecting a cover, the use of a device for protecting a cover, a method of fitting a cover on a probe, and a method of making a device for protecting a cover

The present invention relates to a method and associated apparatus for improving the accuracy with which the speed of a fluid, such as a liquid, in particular blood flowing in a duct, such as a blood vessel, in particular the aorta, is measured by means of a signal emitted by a Doppler transducer ( ). In characteristic manner, according to the method, the Doppler transducer is associated with a programmable memory ( ) which contains at least one correction data item for correcting the Doppler signal transmitted by the transducer ( ) to a transducer control and computer unit ( ). Said computer unit ( ) incorporates said signal correction data item in its computation (at ) of each speed measurement on the basis of each signal emitted by the Doppler transducer, and it computes the speed value while taking account of said correction data item so as to provide a corrected measurement of the speed of said fluid, thereby improving its accuracy.

Device for protecting a cover on a probe

The present invention relates to a method and associated apparatus for improving the accuracy with which the speed of a fluid, such as a liquid, in particular blood flowing in a duct, such as a blood vessel, in particular the aorta, is measured by means of a signal emitted by a Doppler transducer (,). In characteristic manner, according to the method, the Doppler transducer is associated with a programmable memory (,) which contains at least one correction data item for correcting the Doppler signal transmitted by the transducer (,) to a transducer control and computer unit (,). Said computer unit (,) incorporates said signal correction data item in its computation (at,) of each speed measurement on the basis of each signal emitted by the Doppler transducer, and it computes the speed value while taking account of said correction data item so as to provide a corrected measurement of the speed of said fluid, thereby improving its accuracy.

A urethral probe having a front part and a rear part, and a microwave antenna connected to an external device for generating microwaves. The microwave antenna has its primary active heating part arranged in the urethral probe to be directed onto the prostatic tissues located at least at the level of the bladder neck in the working position. The urethral probe constitutes an essential element of a device for the therapeutic treatment of tissues by thermotherapy, more particularly tissues of the bladder neck of the bladder of a human being.

Urethral probe and apparatus for the therapeutic treatment of the

An apparatus for the surgical treatment of tissues by thermal effect, in particular prostate, is disclosed comprising a urethral emitting probe having a front end and a rear end, capable of being inserted in the urethra, provided with microwave antenna located intermediate or in the vicinity of said front end, said microwave antenna being connected to an external microwave generating device, and working at a frequency and at a power effective to heat said tissues to a predetermined temperature for a period of time sufficient to treat said tissues by thermal effect.

Method and apparatus for the surgical treatment of tissues by thermal

The invention relates to a method and to apparatus for detecting and locating a bony region by ultrasound. The apparatus comprises at least one ultrasound transducer component mounted on means for displacing it in three dimensions, which transducer emits signals that are received by processor means for determining the coordinates of a bony region and for storing said coordinates. The invention simplifies the procedure of detecting and locating the bony region and avoids the use of X-rays.

Use of ultrasound for detecting and locating a bony region, method and

An apparatus for the surgical treatment of tissues by thermal effect, in particular the prostate, is disclosed comprising a urethral emitting probe having a front end capable of being inserted in the urethra, provided with a microwave antenna located intermediate or in the vicinity of the front end, the microwave antenna being connected to an external microwave generating device, and working at a frequency and at a power effective to heat the tissues to a predetermined temperature for a period of time sufficient to treat the tissues by thermal effect.

This invention relates to an apparatus for generating high frequency shock waves, which comprises a generator of shock waves by electric discharge between at least two electrodes disposed at least in part in a chamber filled with liquid, and advantageously supplied intermittently with electric current from a source of electric current via a supply connection, the generator device allowing the focusing of the shock waves on a target, and is characterized in that the supply connection for supplying electric current to the electrodes is disposed inside a substantially closed tubular element in order to limit or prevent electro-magnetic leakages. This tubular element is preferably mounted to move in any point in space relatively to the frame and supports the shock wave generating device. Thanks to this apparatus, electro-magnetic leakages are limited or prevented and patients' safety is therefore improved.

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Paris, France

Gerard Hascoet