摘要:
A balloon catheter for the endovascular temperature control of blood, with a catheter tube and at least one heat exchanger balloon which is convertible from an expanded operational state into a compressed insertion state. A temperature-control fluid can flow through the heat exchanger balloon, wherein the catheter tube includes at least one occlusion balloon which is arranged in series with the heat exchanger balloon.
摘要:
A medical device, having a body that is tubular at least in some sections. The body can be transferred from a compressed state into an expanded state and has a circumferential wall having at least one first lattice structure and one second lattice structure. The first lattice structure and the second lattice structure form separate layers of the circumferential wall, which are arranged coaxially one inside the other and connected to each other at least at points in such a way that the first lattice structure and the second lattice structure can be moved relative to each other at least in some sections. A system having such a device is also disclosed.
摘要:
The invention relates to a medical device for inserting into a hollow organ of the body. The device has a compressible and expandable lattice structure made of webs, which are integrally connected to each other by web connectors and which bound closed cells of the lattice structure, wherein the web connectors each have a connector axis extending between two cells which, in a longitudinal direction of the lattice structure, are adjacent to each other. During the transition of the lattice structure from the production state to a compressed state, the web connectors rotate in such a way that an angle between the connector axis and a longitudinal axis of the lattice structure changes, in particular increases, during the transition of the lattice structure from a completely expanded production state to a partially expanded intermediate state.
摘要:
Medical device having compressible and expandable, circular cylindrical lattice structure, which includes circumferential segments having closed cells. The cells are bounded by four respective webs, which are coupled to each other and every two oppositely arranged webs to form a web pair. The webs of a first pair have a different shape and/or a web width at least in some sections than the webs of a second pair. The webs of the first pair can be deformed more greatly than the webs of the second pair. During the transition of the lattice structure from the expanded to the compressed state, each web of the first pair is coupled to a respective web of the second pair in such a way that two connection points oppositely arranged in the longitudinal direction (LR) of the lattice structures are moved away from each other in the circumferential direction (UR) of the lattice structure.
摘要:
The application relates to a medical catheter for hypothermic treatment, with a catheter tube (10), which has at least one through-channel (11) and at least two temperature control channels (12, 13), and with at least one heat exchange element (14), in particular an expandable balloon, which is arranged in a distal catheter portion (15) of the catheter tube (10) and is fluidically connected to the temperature control channels (12, 13) in such a way that a temperature control circuit is formed. The application is characterized in that the catheter tube (10) has a smaller external diameter in the distal catheter portion (16) than in a proximal catheter portion (15).