Two plate shaped engagement elements being the surgical instrument in order to become tense with both sides of the bone part vis-a-vis each other, two pin conditions or the connected component of the cylinder shape which pass by opening of the 2nd engagement element, interval can be less crowded the 1st engagement element, in mutual next door, on the side which, has engages makes therefore, makes the take up where it supports, the back face for engaging, in the aforementioned connected component and the aforementioned connected component displace, the aforementioned 1st engagement element the direction of the aforementioned 2nd engagement element displace the one which leaves from the aforementioned 1st engagement element of the aforementioned 2nd engagement element facesIn combination with the engagement element to the form of the bone part, in the surgical instrument which it has, in order individually to make the adjustment possible, when the aforementioned surgical instrument includes two grip elements in mutual next door, each in the connected component thing, and the aforementioned take up which release possibly can connect through the compensating element to the aforementioned grip element, engages, the aforementioned compensating element becomes tense, the aforementioned take up, it allows the fact that it displaces at the size where the grip element of the aforementioned two differs, therefore, allowing the fact that it displaces at the size where the connected component of the aforementioned two differs, it proposesIt is done.2つの板状係合要素を互いに対して骨部分の両側で緊張させるための外科器具であって、第1係合要素が、第2係合要素の開口を通る2つのピン状又は棒状の接続部材を、互いの隣に間隔を空けて担持し、前記第2係合要素の前記第1係合要素から離れる方を向いた側に、係合のための支持面を備え、前記接続部材に係合して前記接続部材を変位させ、従って、前記第1係合要素を前記第2係合要素の方向に変位させる緊張装置を備えた外科器具において、係合要素を骨部分の形状に合わせて個々に調節可能とするため、前記外科器具が2つの把持要素を互いの隣に含み、各々が接続部材に解放可能に接続することができること、及び、前記緊張装置が前記把持要素に補償要素を介して係合し、前記補償要素が、前記緊張装置が緊張すると、前記2つの把持要素が異なる大きさで変位することを許容し、従って、前記2つの接続部材が異なる大きさで変位することを許容すること、が提案される。
