A motion-enable device includes a mechanical switch and a capacitive sensor with a sensing region that is located adjacent to the mechanical switch. The mechanical switch enables a first signal when closed or actuated that indicates that the mechanical switch is in an active state. The capacitive sensor enables a second signal when a conductive object is disposed in the sensing region, where the second signal indicates that the capacitive sensor is in an active state. Enablement of operation of an apparatus depends on receipt of both the first signal and the second signal. The mechanical switch and the capacitive sensor act as the two separate switches required by functional safety requirements for a motion enable device. Because the sensing region of the capacitive sensor is adjacent to the mechanical switch, the first and second signals are generated when an operator actuates the mechanical switch with a single digit.

A radiation therapy system includes a treatment couch positioning assembly that is directly coupled to a fixed structure supporting the linear accelerator of the radiation therapy system. The radiation therapy system can be installed in a radiation therapy facility without the floor of the facility being excavated and a sub-floor structure, such as a base frame, being installed. To laterally position a patient relative to the linear accelerator, the treatment couch positioning assembly of the radiation therapy system is laterally translated via a linear motor, and laterally translates with the treatment couch, rather than cantilevering the treatment couch to either side of the couch positioning assembly.

An electric lock includes a housing, a keypad module and a lock assembly. The keypad module is arranged on the housing. The keypad module includes a key panel, an electrode pad, a circuit board and a spacer. The key panel is marked with a plurality of key characters. The electrode pad is arranged on an inner side of the key panel, and the electrode pad has a plurality of key electrodes corresponding to the plurality of key characters respectively. The circuit board includes a plurality of key circuits. Each of the key circuits is configured to generate a key signal when contacting a corresponding key electrode. The spacer is configured to form a gap between each of the key circuits and the corresponding key electrode. The lock assembly is electrically connected to the keypad module for performing locking and unlocking operations according to the key signal.

Example methods and apparatuses of controlling a user interface with a plurality of input mechanisms are disclosed. One example method includes causing a first set of input mechanisms in the plurality of input mechanisms to be visually emphasized via a first visual technique while a second set of input mechanisms in the plurality of input mechanisms is not visually emphasized via the first visual technique, receiving a user input via an input mechanism that is included in the first set, based on the user input, determining a third set of input mechanisms in the plurality of input mechanisms and a fourth set of input mechanisms in the plurality of input mechanisms, and causing the third set of input mechanisms to be visually emphasized via the first visual technique while the fourth set of available input mechanisms is not visually emphasized via the first visual technique.

At each step of a workflow performed by an operator that involves a plurality of input mechanisms in a radiation therapy system, the operator is assisted in the process of selecting the next input mechanism in a way that greatly reduces the number of possible input mechanisms that can be chosen. A first subset of input mechanisms is made visually prominent via a first visual technique and a second subset of the input mechanisms is made visually prominent via a second visual technique. The first subset includes input mechanisms that are available for selection at that particular step in the workflow and the second subset includes recommended input mechanisms that are the most likely to be the next input mechanism that should be actuated by the operator at that particular step in the workflow.

A switch apparatus adapted to be disposed on a wall surface includes a box, a heat generating element, a cover, a switch element, and a first heat dissipation structure. The box has an opening and is adapted to be embedded into the wall surface. The heat generating element is disposed inside the box. The cover is assembled to the box and covers the opening. The cover has a front surface and a rear surface opposite to each other. The rear surface faces toward the box, and the front surface is adapted to be exposed from the wall surface. The switch element is disposed on the front surface. The first heat dissipation structure includes first and second sections connected with each other. The first section is connected with the cover and exposed from the front surface, and the second section extends into the box and contacts the heat generating element.

A radiation therapy system includes an X-ray imaging system that is configured with a combined and simplified filter and collimator positioning mechanism. In addition, an X-ray imager of the RT system is only positioned at a few discrete locations within a plane that is a fixed distance from the imaging X-ray source when generating X-ray images. As a result, for each of these discrete imaging positions, the simplified filter and collimator positioning mechanism positions a specific collimator-filter combination in a specific location between the X-ray source and the imager.

A switch apparatus adapted to be disposed on a wall surface includes a box, a heat generating element, a cover, a switch element, and a first heat dissipation structure. The box has an opening and is adapted to be embedded into the wall surface. The heat generating element is disposed inside the box. The cover is assembled to the box and covers the opening. The cover has a front surface and a rear surface opposite to each other. The rear surface faces toward the box, and the front surface is adapted to be exposed from the wall surface. The switch element is disposed on the front surface. The first heat dissipation structure includes first and second sections connected with each other. The first section is connected with the cover and exposed from the front surface, and the second section extends into the box and contacts the heat generating element.

At each step of a workflow performed by an operator that involves a plurality of input mechanisms in a radiation therapy system, the operator is assisted in the process of selecting the next input mechanism in a way that greatly reduces the number of possible input mechanisms that can be chosen. A first subset of input mechanisms is made visually prominent via a first visual technique and a second subset of the input mechanisms is made visually prominent via a second visual technique. The first subset includes input mechanisms that are available for selection at that particular step in the workflow and the second subset includes recommended input mechanisms that are the most likely to be the next input mechanism that should be actuated by the operator at that particular step in the workflow.

A radiation therapy system includes an X-ray imaging system that is configured with a combined and simplified filter and collimator positioning mechanism. In addition, an X-ray imager of the RT system is only positioned at a few discrete locations within a plane that is a fixed distance from the imaging X-ray source when generating X-ray images. As a result, for each of these discrete imaging positions, the simplified filter and collimator positioning mechanism positions a specific collimator-filter combination in a specific location between the X-ray source and the imager.