The present disclosure relates to a movable rack arm assembly including a cam housing, a circular gear, a rack arm, a cam, and a spring assembly for contoured non-linear force transfer.

A surgery assistance device includes an arm that holds an endoscope and adjusts a position of the endoscope, a measuring device having a fixed position relative to the endoscope, the measuring device measuring a distance to a surgery target region of a subject, and a control device configured to obtain a positional relationship between the surgery target region of the subject and a distal end portion of the endoscope based on information from the measuring device, generate a map image showing the position of the endoscope on a three-dimensional model of the surgery target region by using the positional relationship, and transmit display information for displaying the map image.

The invention relates to a floor stand for an optical detection device, having a foot part comprising multiple bearing points or a planar standing surface that span a base plane, having a first stand arm which is pivotably connected to the foot part by a first joint on the foot part, and which is connected to a second stand arm by a second joint remote from the foot part, wherein the length of the first stand arm is dimensioned such that the distance between the base plane and the second joint is smaller than the sum of the maximum value for the eye level when seated and the maximum value for the length of the lower leg including the foot when the first stand arm is aligned at 45 degrees in relation to the base plane.

A surgical microscope having assistant's device, comprises a support (1), a microscope body (2), a first naked eye 3D display (3) and a second naked eye 3D display (4). The microscope body (2) is mounted on the support (1), a photosensitive element (24) is arranged in the microscope body (2), the first naked eye 3D display (3) and the second naked eye 3D display (4) are respectively connected to the photosensitive element (24), display directions of the first naked eye 3D display (3) and the second naked eye 3D display (4) are opposite, and directions of an image displayed by the first naked eye 3D display (3) and an image displayed by the second naked eye 3D display (4) are different by 180 degrees. The surgical microscope having assistant's device of the present invention enables an operator (9) and an assistant (10) of different body sizes to maintain reasonable ergonomic postures, see true images of their respective perspectives, observe the state of each other at any time and communicate in facial language, Meanwhile, only one set of stereo optical imaging system is needed, and two persons can observe at the same time by simply assigning and flipping video signals.

A module for a microscope stand comprises a control device with at least one computer hardware component being configured to control the microscope stand. The module further comprises a locating device configured to interact with another locating device formed in a housing of the microscope stand for mounting the module at a predetermined installation site within the housing.

A medical observation device that includes a microscope that images a surgical site, a holding section that holds the microscope, a base section to which the holding section is connected, and an operation section that receives operating input, the operation section being provided at the base section, the holding section being configured as a balance arm provided with a counterweight, when the base section is viewed from an upper side of the medical observation device, the base section having a first area inside a movable range of the counterweight and a second area outside the movable range of the counterweight, the base end of the holding section being connected to the base section at a location in the first area, and the operation section being arranged at another location in the second area.

A large-screen VR integrated game machine comprises an upper assembly moveably attached to a lower assembly. A VR head mounted display retracting device positioned within the interior of the upper display, comprises a power transmission system, an electrical control system and a pulley system. The VR integrated game machine moveable upper assembly provides a folding structure that allows easier maintenance and upgrades of the equipment under unattended operation. Because the game machine is foldable the height can be shortened to alleviate transportation difficulties and set up at an operation site.

A medical observation system includes: a microscope; a support including a first joint configured to hold the microscope such that the microscope is rotatable about a first axis parallel to an optical axis of the microscope; and a first arm configured to hold the first joint and extend in a direction different from a direction of the optical axis of the microscope; a light guide cable inserted in the support and configured to guide illumination light to the microscope; and a binder configured to bind the light guide cable, wherein at least a part of the light guide cable is arranged along the first axis in a first section, the light guide cable extends in a direction different from the first axis in a second section, and the binder is configured to bind the light guide cable in the second section.

A medical observation device includes an imaging unit configured to photograph an image of an operation site, and a holding unit configured to be connected with the imaging unit and have rotary shafts which are operable with at least six degrees of freedom. Among the rotary shafts, at least two shafts are active shafts whose driving is controlled based on states of the rotary shafts, and at least one shaft is a passive shaft which is rotated according to direct external manipulation accompanying contact.

A slip-resistant eyewear system comprising an angular adjustment screw configured to couple to a first hinge of an eyewear frame such that an angle of the eyewear frame is adjustable relative to a first bow and a unitary eyewear retainer comprising a first end configured to couple to the first bow and a second end configured to couple to a second bow such that a tension is maintained on the unitary eyewear retainer when the unitary eyewear retainer extends around a back of a head of a user.