Radi Medical Systems Ab

St. Jude Medical Coordination Center Bvba

Ola Hammarström

Pär Von Malmborg

Lars Tenerz

Leif Smith

Pär Gustafsson

Per Egnelöv

Dan Åkerfeldt

Per Benkowski

Lars-Åke Brodin

Håkan Elmqvist

Emil Söderqvist

Camilla Carlsson

The invention relates to a sensor and guide wire assembly () for intravascular measurements of physiological variables in a living body, comprising a core wire (), a first coil (), a jacket (), and a second coil (). The jacket () comprises a first end portion (), which is crimped onto the core wire () and over which a portion of the first coil () is threaded, and a second end portion (), which is crimped onto the core wire () and over which a portion of the second coil () is threaded.

Sensor and guide wire assembly

During use there is a risk that a male connector for a guide wire is bent. With the present male connector () more material with high modulus of elasticity can be provided inside the male connector (), which makes the male connector () more bending resistant. The male connector () comprises a core wire (), a plurality of conductive members () spaced apart longitudinally along said core wire (), a plurality of conductors () disposed along the core wire (), each of the conductors () being connected to a respective conductive member (). The core wire () has such a shape that least one longitudinal cavity is provided, which longitudinal cavity remains substantially intact when the male connector () is bent, thereby protecting the conductors (), which are disposed in said cavity, from being damaged.

Bending resistant male connector for a guide wire

During use there is a risk that a male connector for a guide wire is bent. With the present male connector () more material with high modulus of elasticity can be provided inside the male connector (), which makes the male connector () more bending resistant. The male connector () comprises a core wire (), a plurality of conductive members () spaced apart longitudinally along said core wire (), a plurality of conductors () disposed along the core wire (), each of the conductors () being connected to a respective conductive member (). The connector () has such a configuration that the conductors () are protected from damage at the location where the conductors () connect to the conductive members ().

The invention relates to a sensor and guide wire assembly including a pressure sensor having a plurality of terminals, the sensor being mounted in the distal end region of a core wire. It also includes two to four electrodes for conductance measurement, also provided in the distal end region. Two electrodes are electrically insulated from each other.

Combined pressure-volume sensor and guide wire assembly

A sensor and guide wire assembly includes a core wire having a distal end, a proximal end, and a plurality of sections of different cross sections and thereby different flexibilities. At least one of the core wire sections has an enlarged portion with a sensor receptacle therein. The assembly also includes a tube that encloses the core wire over at least a fraction of its length such that the core wire extends out from a distal end of the tube. The tube is configured to enable the sensor and guide wire assembly to be inserted into an artery and to be passed to a measurement site inside a patient's body. The assembly further includes a sensor mounted in the sensor receptacle of the enlarged portion of the core wire. A first coil is arranged to enclose a first portion of the core wire extending out from the distal end of the tube, and the first coil is located nearer to the proximal end of the core wire than the sensor. A second coil is arranged to enclose a second portion of the core wire extending out from the distal end of the tube. The second coil is located nearer to the distal end of the core wire than the sensor.

Growing community of inventors

Lerdala, Sweden

Ola Hammarström