Dissipation device and MRI-safe catheter system

摘要

A dissipation device having a proximal end, which is located outside the body, and a distal end, which is suited in particular for elongate medical instruments, in particular electrophysiological catheters or temporary electrode leads, placed temporarily in the body. The dissipation device including a dissipation sleeve which extends from the proximal end to the distal end of the dissipation device, and a lumen which extends from the proximal end to the distal end, and in which the instrument can be displaceably guided, wherein the lumen is enclosed by the dissipation sleeve. The dissipation device is characterized in that the dissipation sleeve is composed, at least partially, of electrically conductive material, and/or the dissipation sleeve includes dissipation means composed of electrically conductive material and, therefore, the dissipation sleeve is designed to dissipate or divert electrical energy induced by electromagnetic radiation.

主权项

1. A dissipation device having a proximal end, which is outside of the body, and a distal end, which is suited for elongate medical instruments placed temporarily in the body, the dissipation device comprising:
a plurality of dissipation sleeves, the combination of which extends from the proximal end to the distal end of the dissipation device, each of the dissipation sleeves separated by a gap; a lumen which extends from the proximal end to the distal end, and in which the elongate medical instrument is displaceably guided for movement relative to the lumen as the medical instrument is inserted into and removed from the body, wherein the lumen is enclosed by the dissipation sleeve; and electrical networks configured to establish electrical coupling of the dissipation device to each dissipation sleeve, wherein the electrical networks are located between each dissipation sleeve and are configured to couple energy input of adjacent dissipation sleeves, wherein each dissipation sleeve is composed, at least partially, of electrically conductive material, such that each dissipation sleeve is designed to dissipate or divert electrical energy induced by electromagnetic radiation, and wherein the dissipation device is usable with different elongate medical instruments.