Shielding telemetry communications between active implantable medical devices and external instruments from high power electrical interferers

A shield for shielding a telemetry wand from electromagnetical interference capable of interfering with telemetry communications between the telemetry wand and an AIMD in a patient, the telemetry wand comprising a first side that is configured to be placed against a patient, a second side generally opposite the first side, a lateral side between the first and second sides, a hole extending between the first and second sides, and a cable extending from the lateral side, the shield comprising:

• a shell having a wall that defines a volume and an opening in the shell, the volume configured to receive therein the telemetry wand such that the second and lateral sides of the telemetry wand face respective portions of the wall and the first side faces the opening in the shell;
• and
• a structure that extends towards the opening from an inner surface of the shell, the structure configured to be received in the hole of the telemetry wand when the telemetry wand is received in the volume, and wherein the structure is configured to engage the telemetry wand so as to retain the telemetry wand within the volume;
• wherein the structure comprises an inner end that is coupled to the inner surface of the shell and an outer end that is near the opening;
• wherein the structure further comprises a lip at the outer end, the lip engaging a portion of the telemetry wand at or near the hole in retaining the telemetry wand within the volume;
• and
• wherein the structure further comprises a first cap that is removably coupled to the outer end, a diameter difference between the first cap and the rest of the structure defining the lip.

A shield for shielding a telemetry wand from electromagnetical interference capable of interfering with telemetry communications between the telemetry wand and an AIMD in a patient, the telemetry wand comprising a first side that is configured to be placed against a patient, a second side generally opposite the first side, a lateral side between the first and second sides, a hole extending between the first and second sides, and a cable extending from the lateral side, the shield comprising:

• a shell having a wall that defines a volume and an opening in the shell;
• and
• a structure extending from an inner surface of the shell towards the opening in the shell:
• wherein, when the telemetry wand is received in the volume, the structure extends into the hole of the telemetry wand and engages the telemetry wand in a manner that retains the telemetry wand in the volume;
• wherein the structure comprises a lip that engages a portion of the telemetry wand at or near the hole in retaining the telemetry wand within the volume;
• wherein the structure includes an outer end near the opening in the shell, and the lip is located at the outer end;
• and
• wherein the structure further comprises a cap that is removably coupled to the outer end, a diameter difference between the cap and the rest of the structure defining the lip.