Carag Ag

Jörg Hummen

Claudio Steiner

Jérôme Bernhard

Kuno Limacher

Beat Widmer

Albora De Pablo Peña

Cyrill Röthlin

Andreas Weishaupt

Jevgenij Mannhart

Christoph Sidler

Jerôme Bernhard

Albora De Pablo PEÑA

The invention relates to a delivery system for delivering a stent (S) into a body vessel of a patient, comprising a flexible catheter tube () having a proximal and a distal end for delivering the stent (S) to a predetermined location in the body vessel and a catheter tip () having a longitudinal direction, which is disposed at the distal end of the catheter tube (). The catheter tip () has a stent chamber () to receive the stent (). The catheter tip has a first pressure chamber (). In the catheter tube () a first fluid channel () extends from the proximal end to the first pressure chamber () of the catheter tip (). The volume of the first pressure chamber () can be enlarged by delivering a first fluid from the first fluid channel () to the first pressure chamber (), such that the stent (S) is released from the stent chamber () at the predetermined location in the body vessel. According to the invention the catheter tip () has a second pressure chamber (), wherein in the catheter tube () a second fluid channel () extends from the proximal end to the second pressure chamber () and wherein the volume of the second pressure chamber () can be enlarged by delivering a second fluid from the second fluid channel () to the second pressure chamber (), such that a partially released stent (S) can be returned from the predetermined location in the body vessel into the stent chamber (). This delivery system according to the invention makes it possible to release a stent (S) at a well-defined location and also to surround same again relatively atraumatically and to reposition same in situ.

Stent applicator

A device for measuring the blood flow of a body tissue comprises a catheter having a catheter head for the insertion into the inside of a body tissue and a center piece having a light emission surface, out of which an optical conductor leads, and having a reflection surface, which is disposed opposite of the light emission surface and oriented obliquely to the longitudinal axis of the optical conductor. The optical conductor is disposed such that an emitted light beam is directed at the reflection surface, the emitted light beam can be deflected at the reflection surface and reflected into the body tissue, and a reflected light beam can be reflected out of the body tissue at the reflection surface and fed into the optical conductor. The catheter head is divided into an insertion region and a connecting region, wherein the insertion region comprises a plurality of recesses on the surface thereof. In the direction of the connecting region, the insertion region has an increasing diameter. The recesses are provided in the insertion region such that webs are formed in the direction of the connecting region between the recesses along the surface of the catheter head.

Device for measuring the blood flow of a body tissue

The invention relates to an occluder for closing a passage in a circulatory system comprising an expandable fixation unit for fixing the occluder on the passage, wherein the occluder can be transferred in the passage from a compact appearance into an expanded appearance. The occluder has a distal and a proximal axial part, in which the fixation unit is pivotally held. According to the invention, the fixation unit comprises distal fixation arms and proximal fixation arms, wherein the distal fixation arms are pivotally held in the distal axial part and the proximal fixation arms are pivotally held in the proximal axial part. The distal and the proximal fixation arms have free ends, which are interconnected by means of connecting members that can be moved relative to the fixation arms, wherein in each case a distal fixation arm is connected to a proximal fixation arm located diagonally opposed thereto. Said occluder is suited in particular for closing a ventricular septal defect (VSD).

Occluder

Growing community of inventors

Kilchberg, Switzerland

Jörg Hummen