Surgical instrument
AssigneeMorpheus Co., Ltd.
InventorsTimo Rack, Heiko Blessing
Life of this patent
Estimating the term…
Abstract
The invention relates to a surgical instrument with a grip area, which has a first handle part, which is fixed in the position of use, and a second handle part, which can be moved relative to the first handle part along an adjustment direction, wherein a ratio between a first distance between the first handle part and the second handle part and a second distance between the first handle part and the second handle part is constant or almost constant in the direction of the first handle part, at least over a partial area of the actuating path, during a movement of the second handle part.
Claims10
A surgical instrument for tissue separation comprising:
- a grip area which has a first handle part that is fixed in a position of use, and a second handle part which can be moved in an adjustment direction relative to the first handle part;
- and
- a shaft with a guide rail and a slide rail adjustable relative to the guide rail;
- a compensation device on the slide rail, the compensation device having an impingement surface configured to contact and engage an engagement pin formed on a drive element;
- wherein, on the second handle part, a plurality of points of articulation are formed, through which the adjustment direction of the second handle part is defined relative to the first handle part, wherein the adjustment direction of the second handle part is determined by at least two guide levers, each guide lever of the at least two guide levers being connected to the first handle part via at least two points of the plurality of points of articulation and connected to the second handle part via at least another two points of the plurality of points of articulation;
- and
- wherein the at least two points of the plurality of points of articulation on the first handle part are arranged offset to each other;
- and
- wherein the at least another two points of the plurality of points of articulation on the second handle part are arranged offset to each other;
- and
- the surgical instrument includes the drive element which is directly connected to the first and/or second handle part via a bearing point;
- wherein, when the second handle part is actuated, force is transmitted from at least one guide lever of the at least two guide levers and/or from the drive element onto the slide rail of the shaft;
- and
- wherein when the second handle part is actuated, a circular movement of the engagement pin is converted into a linear movement of the compensation device, such that a contact point of the engagement pin moves on the impingement surface in a direction transverse or perpendicular to the linear movement along the impingement surface.
Dependencies are inferred from the claim text.