ADJUSTABLE STIFFENER FOR SURGICAL INSTRUMENTS Russian patent published in 2024 - IPC A61F9/07 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment, namely to a surgical instrument. Surgical instrument comprises a base unit, a probe and a stiffening element assembly. Base unit is designed to be held by the user. Probe is located through the first hole in the distal end of the base unit. Probe has a length parallel to its longitudinal axis. Stiffening element assembly comprises a stiffening element and a drive mechanism. Stiffening element is located passing through the first hole in the base unit. Stiffness element is formed by hollow tubular element with possibility of sliding connected to at least part of probe and surrounding it. Drive mechanism is configured to move the stiffener along the length of the probe. Drive mechanism comprises a displacing device configured to apply a displacing force to the stiffener in the distal direction, a body at least partially surrounding the displacing device. Body is located inside the base unit and passes through the inner part of the distal end of the base unit. Body separates the displacing device from the inner cavity of the base unit. Inner cavity separates the housing from the inner surface of the base unit. In the second embodiment, the surgical instrument comprises the above basic unit, a probe and a stiffening element assembly. Drive mechanism comprises front element connected to base unit. Front element is made with possibility of rotation around longitudinal axis. Front element comprises one or more first components formed on its inner surface. Probe passes through the hole in the front element from the inner chamber of the basic unit. First hole is a hole in the front element. Stiffening element passes through the hole in the front element from the inner chamber of the basic unit. Stiffening element comprises a first section and a second section. First section is located passing through the hole in the front element and passing outside from the base unit. Second section is located in the inner chamber of the basic unit. Second section has one or more second components formed on its outer surface. One or more second components are operatively engaged with one or more first components of the front element.

EFFECT: use of the group of inventions makes it possible to adjust the rigidity of tools during their use.

9 cl, 8 dwg