Abstract: Casings for retaining adapter connector modules and implantable electrical devices, and adapter assemblies for retaining implantable medical devices, include first and second opposing plates spaced apart by a gap configured to retain the devices such that sides of the devices are in confronting engagement with the first and second plates when placed the device is held in the gap. The first and second plates may be biased towards one another to assist in retaining the device in the gap. The device and adapter connector module may be arranged such that their thicknesses do not overlap. For example, the device and adapter connector module may be arranged such that a bottom perimeter edge of the adapter connector module abuts or is spaced apart from a top perimeter edge of the device.

Abstract: In some examples, an implantable medical device (IMD) that includes a pulse generator comprising a housing, electrodes, and circuitry configured to deliver cardiac pacing via the electrodes. The IMD may further include a lead including at least one of the electrodes, an elongate body, a fixation helix, and a connector segment. A width of the helix transverse to a longitudinal axis of the lead is greatest at a distal end of the helix. A proximal end of the elongate body may be connected to a distal end of the pulse generator, and the helix may be attached to a distal end of the elongate body. The pulse generator may include a first connector tab. A distal end of the connector segment may be configured to receive the proximal end of the elongate body and a proximal end of the connector segment may include at least one second connector member configured to engage the first connector tab.

Abstract: In some examples, an implantable medical device (IMD) that includes a pulse generator comprising a housing, electrodes, and circuitry configured to deliver cardiac pacing via the electrodes. The IMD may further include a lead including at least one of the electrodes, an elongate body, a fixation helix, and a connector segment. A width of the helix transverse to a longitudinal axis of the lead is greatest at a distal end of the helix. A proximal end of the elongate body may be connected to a distal end of the pulse generator, and the helix may be attached to a distal end of the elongate body. The pulse generator may include a first connector tab. A distal end of the connector segment may be configured to receive the proximal end of the elongate body and a proximal end of the connector segment may include at least one second connector member configured to engage the first connector tab.

Abstract: Casings for retaining adapter connector modules and implantable electrical devices, and adapter assemblies for retaining implantable medical devices, include first and second opposing plates spaced apart by a gap configured to retain the devices such that sides of the devices are in confronting engagement with the first and second plates when placed the device is held in the gap. The first and second plates may be biased towards one another to assist in retaining the device in the gap. The device and adapter connector module may be arranged such that their thicknesses do not overlap. For example, the device and adapter connector module may be arranged such that a bottom perimeter edge of the adapter connector module abuts or is spaced apart from a top perimeter edge of the device.