Volcano Corporation

Philips Image Guided Therapy Corporation

Douglas Meyer

David H Burkett

Duane De Jong

Dylan Van Hoven

Paul Douglas Corl

David M Anderson

Paul M Hoseit

Sherwood Kantor

The invention is a method for calibrating an intravascular pressure sensor at the point of use. By using data from a secondary pressure measurement device, e.g., an automated aortic pressure monitor, the pressure sensor can be easily calibrated over a range of temperatures and pressures relevant to the patient. Accordingly, an intravascular pressure sensor can be calibrated without undergoing a factory calibration. Additionally, in the event that the calibration is lost, the sensor can be recalibrated.

Intravascular pressure sensor calibration

The present invention generally relates to devices for imaging the interior of a vessel. The device can involve an elongated body configured to fit within the lumen of a vessel, a rotatable shaft positioned inside the elongated body, and a telescoping element, wherein a portion of the elongated body extends through the telescoping element, in which the elongated body is configured to contain the rotatable shaft inside the telescoping element.

Rotational ultrasound imaging catheter with extended catheter body telescope

An intravascular ultrasound (IVUS) imaging system is provided. The IVUS imaging system includes an intravascular device including a transducer shaft with an ultrasound transducer at a distal end. The IVUS imaging system also includes an interface module removably coupled to the intravascular device. The interface module includes a connector rotatably coupled to a proximal end of the transducer shaft; a motor coupled to the connector; a spinning element coupled to the motor, wherein the spinning element comprises four conductive rings; a stationary element comprising a plurality of brushes, wherein the stationary element is disposed proximate the spinning element such that a different one of the plurality of brushes is in mechanical contact with each of the four conductive rings; and four conductors coupled to the connector and the spinning element such that the stationary element and the intravascular device are in electrical communication.

Intravascular ultrasound imaging system with slip ring interface and associated devices, systems, and methods

Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices include at least one pressure sensing component positioned within a distal portion of the device. In some instances, a plurality of conductors are electrically coupled to the pressure sensing component and a potting material covers the electrical connections between the plurality of conductors and the pressure sensing component. In some instances, the potting material has a durometer hardness between about 20 Shore A and about 50 Shore A, a moisture absorption rate of about 0% per twenty-four hours, a linear shrinkage of 0%, a coefficient of thermal expansion (m/m/-&#xb0; C.) of between about 1.0&#xd7;10and about 5.0&#xd7;10, and a volume resistivity (&#x3a9;-cm) between about 6.0&#xd7;10and about 1.0&#xd7;10. Methods of making and/or assembling such intravascular devices/systems are also provided.

Pressure sensing intravascular devices with reduced drift and associated systems and methods

Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices include at least one pressure sensing component within a distal portion of the device. In that regard, one or more electrical, electronic, optical, and/or electro-optical pressure-sensing components is secured to an elongated member and the system includes components to process the output signals according to various calibration parameters.

Pressure sensor calibration systems and methods

In a rotational intravascular catheter, a proximal section of the catheter sheath, within which an elongated flexible drive member portion of the catheter is movably disposed, is extended into a telescoping portion of the catheter. The proximal sheath section functions to support the section of the drive member positioned within the telescoping section whether the telescoping section is in an extended position, qa retracted position, or any position therebetween.

Rotational catheter with extended catheter body drive shaft support

The invention generally relates to intravascular imaging catheters and methods of making catheters for imaging systems. The invention provides a connector for an imaging catheter that includes a unitary body with very thin electrical contacts that are formed on the surface of the body. Due to the scale of the contacts, the connector operates essentially as a single unitary piece of material. Each of the leads may be less than about 100 &#x3bc;m wide and less than about 8 &#x3bc;m thick, and further the leads may be spaced apart by less than about 160 &#x3bc;m.

Laser direct structured connection for intravascular device

One aspect of the present disclosure involves a method. The method includes retrieving, from a diagnostic medical device, identification information that identifies a feature of the diagnostic medical device. A proprietary signal is generated in response to the identification information. The proprietary signal is sent to a medical measurement system to facilitate an unlocking of one or more programs to be executed on the medical measurement system. Another aspect of the present disclosure involves a method. The method includes detecting, through an electronic interface device, a coupling of a remote diagnostic medical device. Thereafter, a proprietary signal is received from the electronic interface device. An identity feature of the remote diagnostic medical device is ascertained based on the proprietary signal. One or more programs are unlocked for execution if the identity feature of the remote diagnostic medical device matches a predetermined identity feature.

Growing community of inventors

Folsom, CA, United States of America

Douglas Meyer