US 9,167,966 B2Granted

Dissipation device and MRI-safe catheter system

AssigneeBiotronik CRM Patent AG

InventorsWolfgang Geistert, Erhard Flach, Ingo Weiss

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Abstract

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.

Claims20

Dependent claims

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.

3 more elements

a plurality of dissipation sleeves configured for removable insertion into a person's body, 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, at least one dissipation sleeve having a distal end which is received in the person's body and a proximal end which is disposed outside of the person's body when the distal end is received therein, 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 configured for receiving an elongate medical instrument while at least one dissipation sleeve is received inside the person's body such that the elongate medical instrument is displaceably guided by at least one dissipation sleeve for movement relative to at least one dissipation sleeve for temporary insertion in the person's body as the elongate medical instrument is inserted into and removed from the person's body,
wherein each dissipation sleeve is composed, at least partially, of electrically conductive material, such that the 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.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/089,774Filed 19 Apr 2011
Priority: EP 1016107126 Apr 2010
Published: US 2011/0263966 A127 Oct 2011
Granted: 27 Oct 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61B 5/00
Measuring for diagnostic purposes
A61N 1/05
Electrodes: for implantation or insertion into the body, e.g. heart electrode
A61B 2562/182
Shielding or protection of sensors from environmental influences, e.g. protection from mechanical damage: electrical shielding, e.g. using a…
A61N 1/086
Arrangements or circuits for monitoring, protecting, controlling or indicating: magnetic resonance imaging [MRI] compatible leads