摘要:
The magnetic coils (72, 74, 76) are arranged to provide a magnetic force within an operating region sufficient to move a magnetic medical device within that portion of a patient inside the operating region.
摘要:
A method of turning a medical device (44), having a magnetically responsive element (46) associated with its distal end, at an operating point (42) within an operating region (40) inside a patient's body from an initial direction to a desired final direction, through the movement of at least one external source magnet (38). The at least one external source magnet (38) is moved in such a way as to change the direction of the distal end of the magnetic medical device (44) from the initial direction to the desired final direction without substantial deviation from the plane containing the initial direction and the desired final direction.
摘要:
Embolic compositions for treating vascular defects such as aneurysms include a mixture of a biocompatible polymer material, a biocompatible solvent, and preferably also an adhesive. The compositions preferably further comprise magnetic particles for controlling the delivery of the embolic agent. These magnetic particles preferably lose magnet strength over time, so that they do not interfere with subsequent magnetic diagnostic and therapeutic procedures. The compositions preferably also include radiopaque particles, which may be the magnetic particles, to facilitate imaging the embolic material.
摘要:
A navigation system (57) for minimally invasive surgery incorporating means of automatic electronic identification of automatically actuated flexible medical device (51) characteristics, communication of such information to a navigation control system (57) and its use in an automatic actuation system (54) that is used to accurately control navigation of the flexible medical device (51) within a patient's anatomy by the use of a physics-based model of flexible device (51) response to automatically applied actuations in order to efficiently access specified regions targeted for therapy delivery.
摘要:
The magnetic coils (72, 74, 76) are arranged to provide a magnetic force within an operating region sufficient to move a magnetic medical device within that portion of a patient inside the operating region.