HUWAIS, SALAH A.,胡瓦司 萨拉赫Ａ,胡瓦司 薩拉赫Ａ,胡瓦司 萨拉赫A,胡瓦司 薩拉赫A
申请号：
TW106103925
公开号：
TW201729763A
申请日:
2017.02.07
申请国别(地区):
TW
年份:
2017
代理人:
摘要：
An anchor to be screwed into a hole and self-lock therein with high initial stability. The anchor has an aggressively-threaded, self-tapping apical end. A central region of the anchor is formed with a plurality of helical flutes and intervening lands. Each land carries a condensing edge. The condensing edges are configured to apply a circumferentially sweeping compressive strain to the interior surface of the host material while the anchor is being screwed into position. A coronal end of the anchor includes a corking feature to mitigate mushrooming around the perimeter of the hole. A helical groove intersects the condensing edges and flutes. The helical groove has a variable pitch and a decreasing depth which functions to squeeze and displace trapped host material thereby enhancing stability and other benefits. In bone applications, the groove hosts material chips which promote and enhance healing.本發明揭示一種螺合至一孔中且以高初始穩定性自鎖於其中之錨。該錨具有一漸進螺紋化自攻頂端。該錨之一中心區域經形成具有複數個螺旋溝槽及中介背緣(land)。各背緣攜帶一凝結邊緣。該等凝結邊緣經構形以當該錨螺合至適當位置中時，將一圓周掃掠壓縮應變施加至主體材料之內表面。該錨之一冠狀端包含一壓塞構件以減緩該孔之周邊周圍迅速增長。一螺旋凹槽與該等凝結邊緣及溝槽交叉。該螺旋凹槽具有一可變節距及一減小深度，此用於擠壓陷留主體材料及使其位移，藉此增強穩定性及其他優點。在骨應用中，該凹槽裝載促進及增強癒合之材料碎片。
