A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part having a first end, a second end, a recess having a bottom for receiving the rod, and an accommodation space having an opening at the second end of the receiving part for accommodating a head of the bone anchoring element, and a retainer element configured to be inserted into the receiving part from the first end and to hold at least part of the head, the retainer element having a first portion and a spring portion compressible in an axial direction attached to the first portion. When the retainer element is in the accommodation space in a first position, the spring portion extends in the axial direction from the first portion of the retainer element to an axial position between the first end of the receiving part and the bottom of the recess.

A headgear for magnetoencephalography includes a body defining a plurality of ports, where the body includes a first portion and a second portion; an adjustment mechanism coupled to the first portion and the second portion of the body and configured to adjust a separation between the first and second portion to facilitate fitting the headgear to a head of a user; and a plurality of optically pumped magnetometer (OPM) modules, where each of the OPM modules includes at least one vapor cell and is configured to be removably inserted into a one of the ports of the body, where each of the OPM modules is configured for coupling to a light source for receiving light.

A modular energy system for use in a surgical environment includes a plurality of functional modules including at least an initial module, a functional module, and a terminal module. Each of the plurality of modules has a module control circuit, and a local data bus. An internal data bus is composed of a serial array of the local data busses of the modules. The local data bus may includes a communication switch, a first switch data path between the communication switch and the module control circuit, a second switch data path in communication with the communication switch, and a third switch data path in communication with the communication switch. The third switch data path of a module N is in communication with a second switch data path of a module N+1. The system further includes a termination unit in communication with the third data path of the terminal module.

Systems, methods and devices for surgical procedurelization via a modular energy system are disclosed herein. In various aspects, the systems, methods and devices include an energy module, a header module communicably coupled to the energy module, and a display screen capable of rendering a graphical user interface (GUI). The GUI may be configured to display a plurality of steps that correspond with actions performed by a user while operating the modular energy system. In some aspects, the steps displayed are steps of a predetermined procedural checklist corresponding with a mental model followed by the user while performing a surgical procedure. In some aspects, the steps displayed are steps of an output verification process.

A multi-energy port splitter for a modular energy system includes an input port configured to couple to an energy output port of an energy module, a first energy output port configured to deliver energy supplied by the energy output port of the energy module, and at least a second energy output port configured to deliver the energy supplied by the energy output port of the energy module. An electronically controlled power switch configured to switch energy received at the input port to one of the first energy output port or the at least second energy output port. A controller is configured to couple to the energy module through a first communication bus. The controller is electrically coupled to the electronically controlled power switch through a power switch control line. A backplane including backplane communication interfaces is configured to receive a multi-energy port splitter and an energy module.

A modular energy system is disclosed including a header module including an enclosure and a display including a coupler. The enclosure defines a recess. The recess includes a first guidewall and a second guidewall. The coupler is removably positionable in the recess. The coupler includes a first sidewall and a second sidewall. The first guidewall is configured to guide the first sidewall as the coupler moves through the recess. The second guidewall is configured to guide the second sidewall as the coupler moves through the recess.

A dual amplifier apparatus is disclosed. The apparatus includes an energy module having a controller and a first and second power amplifier circuit coupled to the controller. The first and second power amplifier circuits are configured to receive and amplify an input signal to generate a first output signal into a load coupled to the output of the first and second power amplifier circuit. A power rating of the first amplifier circuit is different from a power rating of the second amplifier circuit. The controller is configured to select the first or the second power amplifier circuit.

A mounting element (8) for releasably receiving a sensor (18) for transferring and/or receiving electrical currents and/or signals relating to a body of an organism, comprising a mounting element base (9) having a receiving space (17) for receiving the sensor (18), the receiving space (17) comprising a floor (19), a wall (16) disposed on the floor (19) and disposed on at least three sides, an opening (20) formed by at least one tab (21, 22), at least one clip closure (23, 24), and further comprising a cover (10) for the mounting element base (9), an at least three-sided wall being disposed on the inner side (11) thereof, the end face (30) thereof being implemented for contacting the end face (41) of the wall (16), wherein at least one counterpart (28, 29) to the at least one clip closure (23, 24) is disposed on the wall (27), and the mounting element base (9) and the cover (10) are connected to each other by a connecting element (13) such that the cover (10) is displaceable relative to the mounting element base (9), and the mounting element base (9) and the cover (10) are therefore lockable to each other by means of the at least one clip closure (23, 24) and the at least one counterpart (28, 29) and can also be opened again.

An orthopaedic surgical instrument assembly includes a surgical reamer, a cannulated broach, and an instrument handle. The broach includes a bore sized to slide over a shaft of the reamer. The handle attaches to the broach and also includes a bore sized to slide over a shaft of the reamer. A modular broach assembled from a number of broach segments may be used. Methods associated with the surgical instrument assembly are also disclosed.

An analyte sensor system is provided. The system includes a base configured to attach to a skin of a host. The base includes an analyte sensor configured to generate a sensor signal indicative of an analyte concentration level of the host, a battery, and a first plurality of contacts. The system includes a sensor electronics module configured to releasably couple to the base. The sensor electronics module includes a second plurality of contacts, each configured to make electrical contact with a respective one of the first plurality of contacts, and a wireless transceiver configured to transmit a wireless signal based at least in part on the sensor signal. The system includes a first sealing member configured to provide a seal around the first and second plurality of contacts within a first cavity. Related analyte sensor systems, analyte sensor base assemblies and methods are also provided.