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1. (US20120101513) Method and apparatus for removing material from an intervertebral disc space and preparing end plates

专利局 : 美国
申请号: 13013384 申请日: 25.01.2011
公布号: 20120101513 公布日: 26.04.2012
授权号: 08414606 授权日: 09.04.2013
公布类型: B2
国际专利分类:
A61B 17/32
A 人类生活必需
61
医学或兽医学;卫生学
B
诊断;外科;鉴定
17
外科器械、装置或方法,例如止血带
32
手术切割器械
申请人: Shadeck Louis M.
Medtronic Xomed, Inc.
Oliver Dana A.
发明人: Shadeck Louis M.
Oliver Dana A.
代理人: Dicke, Billig & Czaja, PLLC
优先权数据:
标题: (EN) Method and apparatus for removing material from an intervertebral disc space and preparing end plates
摘要: front page image
(EN)

Instrument and method for removing material from an intervertebral disc. The instrument includes outer and inner tubular members. The outer tubular member defines a passage and a cutting window. The inner tubular member is coaxially disposed within the passage, and defines a central lumen and a cutting tip. The cutting tip forms an open mouth having a plurality of teeth. Upon assembly, the cutting tip is exposed within the cutting window combining to define a shaving head. A manual decorticating implement is coupled to the outer tubular member and defining a scraping surface. A powered handpiece is coupled to the inner tubular member, and the shaving head is inserted into an intervertebral disc and positioned such that the cutting tip contacts targeted material (e.g., nucleus, annulus and/or end plate). The handpiece is activated to rotate the cutting tip relative to the cutting window. Contacted material is sheared between an edge of the cutting window and the teeth of the cutting tip. The manual decorticating implement is used to remove intervertebral disc material from an end plate.