发明名称 Dispensing fasteners
摘要 A surgical instrument enables dispensing of a series of fasteners within a patient's body. The device includes a magazine sized and dimensioned to hold a series of fasteners, the series of fasteners insertable through an opening at the end of the magazine. A splined guide bore is rotatably supported within the magazine, and slidingly supports a shaft having an external surface mateable with the splined guide bore to restrict radial rotation of the shaft with respect to the support about said longitudinal axis. A biasing element is connected between the support and the shaft, to urge the shaft along a longitudinal axis towards a distal end of the instrument. A ratchet is connected to the shaft and engages the magazine to permit sliding of the shaft in a direction for dispensing fasteners only, unless disengaged with the magazine.
申请公布号 US9421037(B2) 申请公布日期 2016.08.23
申请号 US201213461159 申请日期 2012.05.01
申请人 GLOBUS MEDICAL, INC. 发明人 Harper Michael
分类号 A61B17/68;A61B17/58;A61B17/70;A61B17/88;A61B17/068 主分类号 A61B17/68
代理机构 代理人
主权项 1. A device for dispensing a series of fasteners to be implanted within a patient, the device comprising: a magazine defining a longitudinal axis and having a distal opening, said magazine sized and dimensioned to hold the series of fasteners, the series of fasteners insertable through said distal opening, said magazine comprising a proximal end and a distal end; a support having a splined guide bore aligned with said longitudinal axis of said magazine, said support connected to said magazine to be rotatable radially with respect to said longitudinal axis; a shaft slideably disposed within said support; a biasing element connected between said support and said shaft, said biasing element configured to urge said shaft along said longitudinal axis in a direction towards said distal end relative to a location of said support; and a ratchet connected to said shaft and engageable with said magazine to permit sliding of said shaft in a first direction towards said distal end, to prevent sliding of said shaft in a second direction away from said distal end in a first position, and to enable sliding of said shaft in said second direction in a second position, said ratchet movable from said first position to said second position when said support is rotated radially with respect to said longitudinal axis, said ratchet including one or more ratchet pawls, said ratchet pawls engageable with said magazine, said ratchet pawls movable in a direction transverse to said longitudinal axis; wherein once a first of the series of fasteners is dispensed, the biasing element urges the shaft towards the proximal end to thereby position a second of the series of fasteners for dispensing, wherein the biasing element is a spring, wherein one or more projections extend inwardly at the distal end of the magazine, wherein the one or more projections are sized and shaped to engage one or more tool flanges of each of the fasteners such that tilting of the device causes portions of the one or more tool flanges to pass the one or more projections thereby allowing for dispensation of the fasteners.
地址 Audubon PA US