Device and method for lubricating dynamic instrument holders

A lubrication device for a dynamic instrument holder, comprises a sterile disposable lubricating set including:

• a container containing a pre-dosed quantity of sterile lubricant, said quantity corresponding to the quantity required for the lubrication of a single dynamic instrument holder,
• a tubular end piece preformed with a communicating hollow core and comprising a first end and a second end, wherein the tubular end piece is independent of the container,
• the first end of said end piece attaching to an open end of said dynamic instrument holder in such a way as to allow the flow of the lubricant to the dynamic instrument holder,
• the container being preformed with an end forming a neck and the second end of said end piece being preformed, so that the end forming a neck of said container fits by friction into said end piece,
• wherein the tubular end piece has a hollow core preformed to include three adjacent coaxial hollow portions:
• a first hollow cylindrical portion of a first diameter starting from the first end, the diameter of which allows the end piece to fit into the rear end of the dynamic instrument holder,
• a second hollow cylindrical portion, of a second diameter smaller than the first, allowing to receive and retain by friction, once opened, the end forming the neck of the container,
• a third hollow frustoconical portion, flaring out toward the second end, allowing the end piece to center and receive the end of the container which is preformed under the end forming the neck of a frustoconical shape.

A lubrication device for a dynamic instrument holder, comprises a sterile disposable lubricating set including:

• a container containing a pre-dosed quantity of sterile lubricant, said quantity corresponding to the quantity required for the lubrication of a single dynamic instrument holder,
• a tubular end piece preformed with a communicating hollow core and comprising a first end and a second end, wherein the tubular end piece is independent of the container,
• the first end of said end piece attaching to an open end of said dynamic instrument holder in such a way as to allow the flow of the lubricant to the dynamic instrument holder,
• the container being preformed with an end forming a neck and the second end of said end piece being preformed so that the end forming a neck of said container fits by friction into said end piece,
• wherein said container is preformed with a first widened neck having an externally and internally threaded cylindrical shape, the internal thread receiving a screwable sleeve forming a narrow neck preformed to engage with the end piece, the external thread receiving a screw cap.