Abstract: A catheter is provided comprising a flexible heat transfer element provided on an outer surface of the catheter. The catheter further comprises a conduit arranged to supply an inflation fluid for inflating the flexible heat transfer element so as to form an inflated balloon, and a plurality of cooling elements arranged to cool the inflation fluid for inflating the balloon. Each cooling element comprises a first tube provided inside a second tube, wherein the first tube is substantially parallel to the second tube. The second tube is configured to receive a flow of a coolant for cooling the cooling element from the first tube.

Abstract: The present invention provides a catheter apparatus for temperature measurement of vascular tissue, comprising a flexible body, at least one resiliently biased projection depended from the body, a sensor carried by the projection and an electrical carrier for transmitting data from the sensor to a remote device, wherein the projection, in a deployed configuration, adopts an arcuate shape along at least part of its length, wherein the gradient of the arcuate portion of the projection, with respect to the longitudinal axis of the catheter, increases as a function of distance along the projection from the end attached to the catheter body.

Abstract: The present invention provides a vascular catheter apparatus for temperature measurement of vascular tissue, comprising a flexible body, at least one resiliently biased projection depended from the body, a sensor carried by the projection and an electrical carrier for transmitting temperature data at the vascular wall from the sensor to a remote device. The electrical carrier may be coiled around the length of the projection to reduce the strain at critical points where it is necessary to maintain a seal and hence electrical isolation.

Abstract: The present invention provides a vascular catheter apparatus for temperature measurement of vascular tissue, comprising a flexible body (14, 15, 18), at least one resiliently biased projection (11) depended from the body, a sensor carried by the projection and an electrical carrier (13) for transmitting temperature data at the vascular wall from the sensor (10) to a remote device. The electrical carrier (13) is coiled around the length of the projection (11) to reduce strain at critical points where it is necessary to maintain a seal and hence electrical isolation.

Abstract: The present invention provides a catheter apparatus for temperature measurement of vascular tissue, comprising a flexible body, at least one resiliently biased projection depended from the body, a sensor carried by the projection and an electrical carrier for transmitting data from the sensor to a remote device, wherein the projection, in a deployed configuration, adopts an arcuate shape along at least part of its length, wherein the gradient of the arcuate portion of the projection, with respect to the longitudinal axis of the catheter, increases as a function of distance along the projection from the end attached to the catheter body.