Chemical dispensing system
    3.
    发明授权
    Chemical dispensing system 失效
    化学分配系统

    公开(公告)号:US5681289A

    公开(公告)日:1997-10-28

    申请号:US514953

    申请日:1995-08-14

    摘要: A chemical dispensing system for dispensing a liquid chemical agent, such as an antibiotic, anesthetic, growth factor, hormone, anti=neoplastic agent, or the like, onto or into a site of a surgical procedure. The system includes at least one bladder having an internal cavity that connects to an open tube wherethrough the liquid chemical agent is passed, under pressure, into the bladder. The liquid chemical agent passes, as a low volume flow, through at least one hole formed through a bladder wall and onto the surgical procedure site. Embodiments of the invention include one or a pair of individual bladders formed from a thin flexible biocompatible material, each for positioning in close proximity to a prepared bone surface with a plurality of holes formed through the bladder surface that is in engagement with the prepared bone surface to bleed a low volume flow of a chemical agent onto the bone surface; a bladder for fitting into and to travel along a longitudinal passage of an intramedullary rod or nail to a location therealong that is adjacent to the surgical procedure site for delivering a volume of the liquid chemical agent onto that site; and a fixation device that includes at least one hollow pin for passing a volume of the liquid chemical agent therethrough directly into or onto a bone proximate to a fracture therein.

    摘要翻译: 一种用于将液体化学试剂(例如抗生素,麻醉剂,生长因子,激素,抗肿瘤剂等)分配到外科手术部位或其中的化学分配系统。 该系统包括至少一个具有内腔的气囊,所述内腔连接到通过液体化学试剂在压力下通过的开放管中。 液体化学剂作为低体积流动通过穿过膀胱壁形成的至少一个孔并通过外科手术部位。 本发明的实施方案包括由薄的柔性生物相容性材料形成的一个或一对单独的囊,每个囊用于紧邻准备好的骨表面定位,其中多个孔通过与准备的骨表面接合的囊状物表面形成 将化学试剂的低体积流量排出到骨表面上; 用于装配并沿着髓内杆或指甲的纵向通道行进到与外科手术部位相邻的位置处的膀胱,用于将一定体积的液体化学试剂输送到该部位上; 以及固定装置,其包括至少一个中空销,用于将一定体积的液体化学试剂直接通过其中的骨折附近或其上的骨折。