Medtronic, Inc.

Darrin T Schauble

Keith Alan Miesel

Scott A Sarkinen

Mark R Bilitz

Emem D Akpan

Songhua Shi

Rachel M Day

Douglas E Hentges

Mark E Dunlap

Cindy Konen

In some examples, a medical device may include circuitry on a circuit board, a casing, and a fill material at least partially within the casing. The casing may receive the circuit board and surround at least a portion of the circuit board. The casing may define an aperture configured to allow one or more electrical connectors of the circuit board to extend through the aperture for one or more electrical connections with one or more components outside of the casing. An outer surface of the casing may define a first portion of an outer surface of the medical device. The casing may comprise a material having a first melting temperature. The fill material may define a second portion of the outer surface of the medical device and may have a second melting temperature that is lower than the first melting temperature.

Medical devices

Transdermal insertion of a transcutaneous filling apparatus, for the purpose of filling a fill chamber of an implanted therapy delivery device, is monitored by measuring each impedance between pairs of electrodes of a needle of the apparatus, and comparing each to a threshold impedance; the electrodes, preferably at least three in number, are isolated and spaced apart from one another along a length of the needle. A confirmation signal is generated when at least one of the measured impedances is greater than the threshold impedance, and another is less than the threshold, the condition indicating that one of the electrodes is located within a non-conductive septum, through which the apparatus must pass to access the fill chamber. A detection circuit, which may be located in a housing of the apparatus that is attached to a proximal end of the needle, measures and compares the impedances.

Filling methods and apparatus for implanted medical therapy delivery devices

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Phoenix, AZ, United States of America

Darrin T Schauble