The present disclosure relates to a system, comprising: an implantable medical device, wherein the implantable medical device comprises an ultrasound transducer configured to receive an ultrasound wave, a packaging, wherein the packaging encloses an internal space, wherein the implantable medical device is arranged in the internal space, and a device mount arranged in the internal space, wherein the implantable medical device is fastened to the device mount in a releasable fashion, and wherein the device mount contacts an inner side of a portion of the packaging and forms an acoustic coupler configured to pass an ultrasound wave applied to an outer side of the portion of the packaging to the ultrasound transducer of the implantable medical device.

Various embodiments of a sealed package and a method of forming such package are disclosed. The package can include a non-conductive substrate that includes a cavity disposed in a first major surface. A cover layer can be disposed over the cavity and attached to the first major surface of the non-conductive substrate to form a sealed enclosure. The sealed package can also include a feedthrough that includes a via between a recessed surface of the cavity and a second major surface of the substrate, and a conductive material disposed in the via. An external contact can be disposed over the via on the second major surface of the non-conductive substrate, where the external contact is electrically connected to the conductive material disposed in the via. The sealed package can also include an electronic device disposed within the sealed enclosure that is electrically connected to the external contact.

A power control circuit for use with devices that will be placed in a flammable sterilizing gas includes a bi-stable switch that is configured to produce an output to place the circuitry of a connected device in a run state or a sleep state. The bi-stable switch controls one or more transistors to drain energy from energy storage devices in the circuitry of the connected device to a level below an ignition level of a sterilizing gas. A remotely actuatable switch can be actuated from outside of a packaging in which the power control circuit is placed to cause the bi-stable switch to produce an output that puts the circuitry in the run state without removing the power control circuit from the packaging.

An implantable pulse generator (IPG) that generates spinal cord stimulation signals for a human body has a programmable signal generator that can generate the signals based on stored signal parameters without any intervention from a processor that controls the overall operation of the IPG. While the signal generator is generating the signals the processor can be in a standby mode to substantially save battery power.

A medical device control unit is provided. The control unit may include a communications interface, a memory, and at least one processing device. The processing device may be configured to cause application of a control signal to a primary antenna associated with a unit external to a subject's body. The processing device may further be configured to monitor a feedback signal indicative of the subject's breathing and store, in the memory, information associated with the feedback signal. The processing device may also cause transmission of the stored information, via the communications interface, to a location remote from the control unit. The processing device may further be configured to receive an update signal, from the location remote from the control unit, and cause application of an updated control signal to the primary antenna based on the update signal.

An implantable pulse generator (IPG) that generates spinal cord stimulation signals for a human body has a programmable signal generator that can generate the signals based on stored signal parameters without any intervention from a processor that controls the overall operation of the IPG. While the signal generator is generating the signals the processor can be in a standby mode to substantially save battery power.

Various embodiments of a sealed package and a method of forming such package are disclosed. The package can include a non-conductive substrate that includes a cavity disposed in a first major surface. A cover layer can be disposed over the cavity and attached to the first major surface of the non-conductive substrate to form a sealed enclosure. The sealed package can also include a feedthrough that includes a via between a recessed surface of the cavity and a second major surface of the substrate, and a conductive material disposed in the via. An external contact can be disposed over the via on the second major surface of the non-conductive substrate, where the external contact is electrically connected to the conductive material disposed in the via. The sealed package can also include an electronic device disposed within the sealed enclosure that is electrically connected to the external contact.

A medical device control unit is provided. The control unit may include a communications interface, a memory, and at least one processing device. The processing device may be configured to cause application of a control signal to a primary antenna associated with a unit external to a subject's body. The processing device may further be configured to monitor a feedback signal indicative of the subject's breathing and store, in the memory, information associated with the feedback signal. The processing device may also cause transmission of the stored information, via the communications interface, to a location remote from the control unit. The processing device may further be configured to receive an update signal, from the location remote from the control unit, and cause application of an updated control signal to the primary antenna based on the update signal.

Various embodiments of a sealed package and a method of forming such package are disclosed. The package can include a non-conductive substrate that includes a cavity disposed in a first major surface. A cover layer can be disposed over the cavity and attached to the first major surface of the non-conductive substrate to form a sealed enclosure. The sealed package can also include a feedthrough that includes a via between a recessed surface of the cavity and a second major surface of the substrate, and a conductive material disposed in the via. An external contact can be disposed over the via on the second major surface of the non-conductive substrate, where the external contact is electrically connected to the conductive material disposed in the via. The sealed package can also include an electronic device disposed within the sealed enclosure that is electrically connected to the external contact.

Apparatus for transcutaneous electrical nerve stimulation in a user, the apparatus comprising: stimulation means for electrically stimulating at least one nerve with at least one stimulation pulse; control means connected to the stimulation means for controlling at least one characteristic of the at least one stimulation pulse; and modulating means connected to the control means for modulating the at least one characteristic of the at least one stimulation pulse according to the time of day.