不同钻速下电钻钻孔骨质产热的比较

发布时间：2017-12-31 17:34

本文关键词：不同钻速下电钻钻孔骨质产热的比较　出处：《中国微创外科杂志》2015年11期 　论文类型：期刊论文

【摘要】：目的比较采用不同钻速进行电钻钻孔操作时,骨质局部温度的变化,获取在微创隧道人工耳蜗植入手术中电钻钻孔操作的安全参数。方法采用外形近似的新鲜猪肋骨块,在两块骨块的截面依次安放3枚热敏电阻(Pt100)并固定,分别于皮质骨表面,距离横截面1.5 mm处进行钻孔操作。按照钻速由低至高,人为分为100、1250、7000、10 000、20 000、30000和40 000 r/min,每个钻速重复实验6次,记录钻孔时的温度变化。比较不同钻速钻孔时骨质升温的差异。结果采用100 r/min钻孔时,钻孔局部骨质的平均升温(3.81±1.47)℃,采用1250 r/min钻孔时,骨质平均升温(11.57±4.32)℃,两者间差异无显著性(P=0.130);在钻速为7000 r/min钻孔时,骨质升温(18.01±3.62)℃,与10 000 r/min钻速组的(43.09±10.05)℃比较,两者差异有统计学意义(P=0.000);当转速高于10 000 r/min时,提高转速后局部骨质升温的变化无显著性差异。结论在本研究条件下,使用低钻速100 r/min和1250 r/min进行钻孔操作时,骨质局部升温较小,当钻孔局部要求的温度不能过高时,应选择低钻速进行操作。
[Abstract]:Objective to compare the different drilling speed of drill drilling operation, local temperature change of bone, obtain drill drilling operation safety parameters in minimally invasive tunnel in cochlear implantation. Methods fresh pig ribs block shape approximation, are placed in section two bone block 3 thermistor (Pt100) and fixed. In the cortical bone surface, the distance cross section at 1.5 mm drilling operation. According to the drilling speed from low to high, artificially divided into 10012507000,10 00030000 000,20 and 40000 r/min, each ROP repeat the experiment 6 times, the temperature change when drilling drill velocity records. Comparison of different bone heating. The differences with the 100 r/min drill when the average temperature of the local bone drilling (3.81 + 1.47) C, using a 1250 r/min drill, with average temperature (11.57 + 4.32) C, there is no statistical difference between them (P=0.130); the drilling speed is 7000 r/min drill Well, with temperature (18.01 + 3.62) C, and 10000 r/min drilling group (43.09 + 10.05) C comparison, the difference was statistically significant (P=0.000); when the speed is higher than 10000 r/min, there was no significant difference in speed increases after local bone warming. Conclusion under the conditions of this study, the use of low penetration rate is 100 r/min and 1250 r/min for drilling operation, with local heating when the temperature is small, local borehole requirements should not be too high, should choose the low drilling speed of operation.

【作者单位】：北京大学第三医院耳鼻咽喉头颈外科;北京航空航天大学机器人研究所;
【基金】：首都卫生发展科研专项项目(2011-4023-03) 2011北京大学第三医院临床学科重点项目
【分类号】：R764.9
【正文快照】： 电钻钻孔操作广泛应用于神经外科开颅、骨科植入体固定及口腔颌面外科牙体预备及植入体的固定中。根据钻孔作用不同,大致可分为高速钻孔与低速钻孔两种类型[1]:前者主要应用于单纯钻孔,最常见的是在坚硬的骨质上钻出一条可以后续植入钛钉所需的隧道,因此要求以较高的钻速,通常

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