A sterile cover is a supporting facility on a surgical shadowless lamp that serves as a disinfection function. It is an interface device that provides sterile barriers between the disinfection area and the unsterilized area of the connected surgical lamp head.

The interface device is a disposable sterile cover, including a lower gripping part, a middle conical part, and an upper window area.

The lower gripping part is suitable for connecting to the handle position of the connected surgical lamp head, while the middle conical part connects the lower gripping part with the upper window area.

The upper window area covers the control input devices of the connected surgical lamp heads, such as light intensity controllers. At least a portion of the upper window area is transparent, allowing for visibility of the control input under the disposable sterile cover. The interface device can be an integrated structure or a combination structure.

Surgical hand lamp holder, lamp holder control interface, located on the lamp holder. The lamp head control interface includes: a handle for gripping and adjusting the position of the speed lamp head; And a cover, used to cover the speed control interface, to form a sterile barrier between the control interface on the first side of the cover and the sterile area on the second side of the cover opposite the front side.

The handle and annular rib are used to match the annular groove of the handle to position the cover onto the handle. The cover comprises an upper area, wherein the upper area is limited to a transparent portion, so that when the cover covers the control interface, the second dynamic input device can be seen. When the groove matches the rib, the cover can rotate around the handle.

The cover includes a transparent lens portion, which is located at the closed end of the cover. The transparent lens portion is suitable for providing an optical path through the cover at the desired speed. A method for maintaining a sterile environment, comprising providing a control interface for a lamp head in an operating room, wherein the control interface includes a light intensity controller and placing a sterile cover on the control interface, thereby preventing direct touch of the control interface while maintaining line of sight and the operation function of the light intensity controller.

The interface device is used to provide sterile barriers between the disinfected area and the non disinfected handle and control input of the surgical lamp head connected to it.