초록 ▼

A transcutaneous energy transfer device is provided which has a magnetic shield covering the primary winding of the device to reduce sensitivity of the device to conducting objects in the vicinity of the coils and to increase the percentage of magnetic field generated by the primary coil which reach

A transcutaneous energy transfer device is provided which has a magnetic shield covering the primary winding of the device to reduce sensitivity of the device to conducting objects in the vicinity of the coils and to increase the percentage of magnetic field generated by the primary coil which reaches the secondary coil. This shield is preferably larger than the primary coil in all dimensions and is either formed of a high permeability flexible material, for example a low loss magnetic material in a flexible polymer matrix, with perforations formed in the material sufficient to permit ventilation of the patient's skin situated under the shield, or the shield may be formed of segments of very high permeability material connected by a flexible, porous mesh material.

대표청구항 ▼

[ What is claimed is:] [22.]22. A transcutaneous energy transfer device comprising:an external primary coil to which energy to be transferred is applied;an implanted secondary coil configured to be inductively coupled to said primary coil and connected to apply energy to a subcutaneous utilization d

[ What is claimed is:] [22.]22. A transcutaneous energy transfer device comprising:an external primary coil to which energy to be transferred is applied;an implanted secondary coil configured to be inductively coupled to said primary coil and connected to apply energy to a subcutaneous utilization device; anda magnetic shield adjacent a side of said primary winding opposite said secondary coil,wherein said shield is flexible so as to be able to conform to the contours of a patient's body.