Method and apparatus for guiding an external needle to an implantable device
First Claim
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1. A system for determining a location of a trackable instrument with a receiving coil array, comprising:
- a trackable instrument;
a tracking array associated with the trackable instrument, having;
a plurality of tracking portions;
wherein each tracking portion of the plurality of tracking portions is positioned at vertices of a geometric shape separately and spaced apart from each of the other tracking portions to form the tracking array;
wherein the geometric shape is a tetrahedron and the plurality of tracking portions includes four tracking portions, wherein each tracking portion is spaced about eight millimeters to about 15 millimeters apart from each other tracking portion;
wherein each tracking portion is operable to sense a field to determine position information and orientation information;
an implantable medical device having a power source;
a localizer having coils of conductive material and configured to emit an electromagnetic field when powered by the power source fixed within the implanted medical device operable to emit a field to be sensed by the tracking array; and
a display separate from the trackable instrument and operable to display a location information of the trackable instrument based on the emitted field from the localizer that is sensed by the tracking array, wherein the location information includes a graphical display representing a port of the implantable medical device and a direction indicator relative to the port displayed as a plurality of rings;
wherein the plurality of rings on the display illustrate detailed guidance information includingthree-dimension position and orientation of the trackable instrument.
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Abstract
A support tool or a supply assembly that delivers a functional fluid to a patient includes an antenna array for receiving or sensing a navigation field. The navigation field can be generated from a localizer. The localizer can be incorporated or included in an implanted device.
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Citations
29 Claims
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1. A system for determining a location of a trackable instrument with a receiving coil array, comprising:
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a trackable instrument; a tracking array associated with the trackable instrument, having; a plurality of tracking portions; wherein each tracking portion of the plurality of tracking portions is positioned at vertices of a geometric shape separately and spaced apart from each of the other tracking portions to form the tracking array; wherein the geometric shape is a tetrahedron and the plurality of tracking portions includes four tracking portions, wherein each tracking portion is spaced about eight millimeters to about 15 millimeters apart from each other tracking portion; wherein each tracking portion is operable to sense a field to determine position information and orientation information; an implantable medical device having a power source; a localizer having coils of conductive material and configured to emit an electromagnetic field when powered by the power source fixed within the implanted medical device operable to emit a field to be sensed by the tracking array; and a display separate from the trackable instrument and operable to display a location information of the trackable instrument based on the emitted field from the localizer that is sensed by the tracking array, wherein the location information includes a graphical display representing a port of the implantable medical device and a direction indicator relative to the port displayed as a plurality of rings; wherein the plurality of rings on the display illustrate detailed guidance information including three-dimension position and orientation of the trackable instrument. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
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10. A system for receiving a functional material and delivering the received functional material to a patient, comprising:
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an implantable medical device configured to receive the functional material that is operable to be delivered to the implantable medical device with a delivery system; a navigation processor operable to process a signal based on a field sensed by tracking portions of the delivery system to determine a location of the delivery system; a localizer configured to generate the field and included with the implantable medical device, wherein the localizer included with the implantable medical device is fixed within the implantable medical device and includes at least three coils, wherein each of the at least three coils includes a first coil layer of a first number of turns and a second coil layer of a second number of turns separated by a plane defined by an isolation layer, wherein the first coil layer is positioned at a first side of the isolation layer and the second coil layer is positioned at an opposite second side of the isolation layer; a localizer tuning capacitor connected to at least one coil of the at least three coils of the localizer to tune a driving signal through at least one coil of the at least three coils; a telemetry tuning capacitor separate from the localizer tuning capacitor and connected to at least one coil of the at least three coils of the localizer to tune the driving signal through at least one coil of the at least three coils; a tuning control to switch an incoming current to oscillate through both the telemetry tuning capacitor and the localizer tuning capacitor or only the telemetry tuning capacitor and at least one of the coils of the at least three coils to selectively tune the driving signal for one of telemetry or localizing; a single power source configured to power the implantable medical device to deliver the functional material and the localizer; and a power management module configured to conserve power of the single power source by selectively powering at least one of the implantable medical device to deliver the functional material and the localizer based on a set of instructions. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for determining a location of a trackable instrument with a receiving coil array, comprising:
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twelve conductive coils arranged in the receiving coil array; four conductive coil groups where each of the four conductive coil groups has three of the twelve conductive coils; a localizer positioned in an implanted medical device operable to emit a field to be sensed by each of the twelve conductive coils; and a delivery system having a supply assembly that includes a container and a piercing member that extends from the container; a support member having a first surface spaced from and opposed to a second surface and a throughbore extending between and through the first surface and the second surface, wherein the support member is configured to selectively and removably engage the delivery system, wherein the piercing member is configured to selectively and removably received in the throughbore; wherein each of the four conductive coil groups is positioned spaced apart about eight millimeters to about 15 millimeters at vertices of a tetrahedron to define a volume of about 200 millimeters cubed to about 300 millimeters cubed; wherein fields sensed at each of the four conductive coil groups is operable to determine position information and orientation information for each of the coil groups relative to the localizer; wherein the support member houses the four conductive coil groups of the receiving coil array for sensing the field from the localizer; wherein extending from the first surface of the support member further includes an upper three dimensionally contoured nesting surface that conforms to a corresponding three dimensionally contoured surface of the supply assembly, the corresponding surface of the supply assembly nests against the upper three dimensionally contoured nesting surface to support the supply assembly such that a supply axis remains substantially fixed relative to the receiving coil array; wherein the piercing member extends through the throughbore and into the implanted medical device; wherein a lower nesting surface extends from the upper nesting surface and towards the second surface; wherein the container nests against and abuts the entire upper three dimensionally contoured nesting surface and the piercing member nests within and abuts the entire lower nesting surface when the container nests against the upper three dimensionally contoured nesting surface; wherein the container when nested within the upper nesting surface is at least partially below the upper surface of the support member. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification