Biotronik Se Co. Kg

Biotronik Ag

Alois Pfenniger

Henning Ebert

Andreas Bitzer

Joachim Elsner

Andre Van Ooyen

Olaf Skerl

Jens Philipp

Sarah Biela

An adjustable diameter catheter includes a wall extending in an axial direction surrounding a lumen of the catheter, the wall having at least one outer spring and at least one inner spring arranged coaxially to the outer spring. The at least one outer spring surrounds the at least one inner spring. The at least one inner and outer springs each have a distal end which are connected to one another. The at least one inner and outer springs each have a plurality of windings. A winding direction of the at least one outer spring is opposite to a winding direction of the at least one inner spring.

Catheter with adjustable diameter

The invention describes an implantable pressure sensor having a housing, wherein the housing has walls and two or more pressure transfer membranes bounding an internal volume, wherein the pressure transfer membranes are not coplanar.

Implantable pressure sensor

An implantable pressure sensor device () has a housing () which is at least partially made of a pressure transmitting membrane (), and which includes one or more regions which can reversibly deform while maintaining the surface area of the membrane () when the internal volume of the housing () is changed. The housing () has a non-circular cross-section which can deform to a more circular shape when pressure in the internal volume increases. An inner housing is preferably situated within the housing, with its exterior spaced from the interior of the housing, and has its inner volume in fluid communication with the space between the housing and inner housing.

Implantable pressure sensor device

Growing community of inventors

Biel, Switzerland

Alois Pfenniger