CN107244901A - 一种防滑高强硬度陶瓷外科用手术刀片及其生产工艺 - Google Patents

一种防滑高强硬度陶瓷外科用手术刀片及其生产工艺 Download PDF

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CN107244901A
CN107244901A CN201710400121.9A CN201710400121A CN107244901A CN 107244901 A CN107244901 A CN 107244901A CN 201710400121 A CN201710400121 A CN 201710400121A CN 107244901 A CN107244901 A CN 107244901A
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李瑞清
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Taicang Cass Tatum New Materials Co Ltd
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Abstract

本发明属于医疗器械技术领域，尤其涉及一种防滑高强硬度陶瓷外科用手术刀片及其生产工艺。本发明所述的防滑高强硬度陶瓷外科用手术刀片，硬度和抗弯强度高，韧性强，耐磨性好，使用寿命长，连接孔结构的设置使得刀片与刀柄的连接更加牢固而且还可以方便调节手术刀的整体长度；成本低，与人体组织有良好的生物相容性，满足医疗器械行业标准对外科手术刀片的所有性能指标的要求；生产工艺简单，成本低，不会对环境造成污染，绿色环保。

Description

一种防滑高强硬度陶瓷外科用手术刀片及其生产工艺
技术领域
本发明属于医疗器械技术领域，尤其涉及一种防滑高强硬度陶瓷外科用手术刀片及其生产工艺。
背景技术
手术刀是一种常用的医疗器械，特别在医学外科手术中一种非常重要的工具，其为人类的健康事业提供了强有力的保障作用；手术刀大体上包括刀片和刀柄，通常刀片和刀柄是分开设置的；现有技术中的刀片一般由金属材料制成，但由于刀片在制作过程中，刀刃的角度设置不合理，导致刀片和刀刃的强度不够，出现操作无力情况，影响手术质量。
发明内容
发明目的：为了克服以上问题，本发明的其中一个目的是提供一种防滑高强硬度陶瓷外科用手术刀片。
技术方案：本发明所述的一种防滑高强硬度陶瓷外科用手术刀片，包括手术刀片本体，所述的手术刀片本体由陶瓷材料制成且包括刀刃部和连接部，所述的刀刃部和连接部为一体结构；所述的刀刃部包括第一刀刃部和第二刀刃部，所述的第一刀刃部位于手术刀片本体左端且斜向右设置，第二刀刃部位于手术刀片本体下端且斜向下设置，所述的第一刀刃部长度小于所述的第二刀刃部长度且所述的第一刀刃部和第二刀刃部之间的夹角呈锐角；所述的连接部左端与所述的刀刃部固定连接，右端呈半圆弧形结构，所述的连接部上设有连接孔，所述的连接孔由若干圆形孔构成且相邻两个圆形孔之间设有一长槽孔；所述的长槽孔带有弧度且所述的弧度向内凸，所述的手术刀片本体通过连接部上的连接孔与手术刀柄连接；所述的刀刃部两侧面中间位置均设有一防滑部，所述的防滑部设有防滑凸条；所述的陶瓷材料包括以下重量份的原料组成：高岭土10-20份、轻质碳酸钙5-10份、氧化锆20-30份、氧化钇1-3份、纳米氧化铝25-35份、氮化铝5-15份、Ti（C,N）15-25份、三氧化钨3-7份、硼化二钼3-7份、五氧化二钽3-7份、石墨粉3-7份、二硼化锆1-3份。
所述的陶瓷材料包括以下重量份的原料组成：高岭土15份、轻质碳酸钙7份、氧化锆25份、氧化钇2份、纳米氧化铝25份、氮化铝10份、Ti（C,N）20份、三氧化钨5份、硼化二钼5份、五氧化二钽5份、石墨粉3-7份、二硼化锆2份。
所述的陶瓷材料手术刀片本体硬度高于HRA93.5，抗压强度大于2300MPa，断裂韧性高于18.3 MPa.m1/2。
所述的防滑部形状呈圆形或方形。
本发明的另一个目的在于提供所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺：
1）制备粉末混合物：将配方量的各原料组分混合均匀后至于高能球磨机中并加入50%乙醇或去离子水球磨4-6h后过200目筛得陶瓷原料粉末；
2）成型压坯：将步骤1）制得的陶瓷原料粉末放入手术刀片模具中通过压力成型压制成压坯；
3）预烧：将步骤2）压坯放入到高温箱式电炉中，先在温度400-500℃下保温2-3h后再在温度100-150℃下保温0.5-1h，再自然冷却至室温得预烧体；
4）烧结：将压坯至于氮气保护中进行烧结，先在温度900-1200℃保温烧结4-6h，再升温到1200-1500℃下保温烧结为1-2h，再降温到500-600℃下保温烧结0.5-1h，最后自然冷却至室温即得陶瓷手术刀片。
所述步骤1）球料比为1:8-10。
所述步骤1）球磨机的转速为350-450rpm。
所述步骤2）压坯压力为240-250MPa。
所述步骤3）升温速率为10℃/min，降温速率为5℃/min。
上述技术方案可以看出，本发明具有如下有益效果：本发明所述的防滑高强硬度陶瓷外科用手术刀片，硬度和抗弯强度高，韧性强，耐磨性好，使用寿命长，连接孔结构的设置使得刀片与刀柄的连接更加牢固而且还可以方便调节手术刀的整体长度；防滑部的设置可以增大手术刀操作人员手部与手术刀之间的摩擦，防止手术过程中发生打滑影响手术效果和手术时间；成本低，与人体组织有良好的生物相容性，满足医疗器械行业标准对外科手术刀片的所有性能指标的要求；生产工艺简单，成本低，不会对环境造成污染，绿色环保。
附图说明
图1为本发明的结构示意图。
图中：1手术刀片本体、11刀刃部、111第一刀刃部、112第二刀刃部、12连接部、2连接孔、21圆形孔、22长槽孔、3防滑部、31防滑凸条。
具体实施方式
下面结合附图和具体实施例，进一步阐明本发明。
实施例1
如图1所示，本实施例中所述的一种防滑高强硬度陶瓷外科用手术刀片，包括手术刀片本体1，所述的手术刀片本体1由陶瓷材料制成且包括刀刃部11和连接部12，所述的刀刃部11和连接部12为一体结构；所述的刀刃部11包括第一刀刃部111和第二刀刃部112，所述的第一刀刃部111位于手术刀片本体1左端且斜向右设置，第二刀刃部112位于手术刀片本体1下端且斜向下设置，所述的第一刀刃部111长度小于所述的第二刀刃部112长度且所述的第一刀刃部111和第二刀刃部112之间的夹角呈锐角；所述的连接部12左端与所述的刀刃部11固定连接，右端呈半圆弧形结构，所述的连接部12上设有连接孔2，所述的连接孔2由若干圆形孔21构成且相邻两个圆形孔21之间设有一长槽孔22；所述的长槽孔22带有弧度且所述的弧度向内凸，所述的手术刀片本体1通过连接部12上的连接孔2与手术刀柄连接；所述的刀刃部11两侧面中间位置均设有一防滑部3，所述的防滑部3设有防滑凸条31；所述的陶瓷材料包括以下重量份的原料组成：高岭土10份、轻质碳酸钙5份、氧化锆20份、氧化钇1份、纳米氧化铝25份、氮化铝5份、Ti（C,N）15份、三氧化钨3份、硼化二钼3份、五氧化二钽3份、石墨粉3份、二硼化锆1份。
所述的陶瓷材料手术刀片本体1硬度高于HRA93.5，抗压强度大于2300MPa，断裂韧性高于18.3 MPa.m1/2。
所述的防滑部3形状呈圆形或方形。
本发明的另一个目的在于提供所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺：
1）制备粉末混合物：将配方量的各原料组分混合均匀后至于高能球磨机中并加入50%乙醇或去离子水，球料比为1:8，球磨机的转速为350rpm，球磨4h后过200目筛得陶瓷原料粉末；
2）成型压坯：将步骤1）制得的陶瓷原料粉末放入手术刀片模具中通过压力成型压制成压坯，压坯压力为240MPa；
3）预烧：将步骤2）压坯放入到高温箱式电炉中，先在温度400℃下保温3h后再在温度100℃下保温1h，再自然冷却至室温得预烧体；
4）烧结：将压坯至于氮气保护中进行烧结，先在温度900℃保温烧结6h，再以10℃/min的升温速率升温到1200℃下保温烧结为2h，再以5℃/min的降温速率降温到500℃下保温烧结1h，最后自然冷却至室温即得陶瓷手术刀片。
实施例2
如图1所示，本实施例中所述的一种防滑高强硬度陶瓷外科用手术刀片，包括手术刀片本体1，所述的手术刀片本体1由陶瓷材料制成且包括刀刃部11和连接部12，所述的刀刃部11和连接部12为一体结构；所述的刀刃部11包括第一刀刃部111和第二刀刃部112，所述的第一刀刃部111位于手术刀片本体1左端且斜向右设置，第二刀刃部112位于手术刀片本体1下端且斜向下设置，所述的第一刀刃部111长度小于所述的第二刀刃部112长度且所述的第一刀刃部111和第二刀刃部112之间的夹角呈锐角；所述的连接部12左端与所述的刀刃部11固定连接，右端呈半圆弧形结构，所述的连接部12上设有连接孔2，所述的连接孔2由若干圆形孔21构成且相邻两个圆形孔21之间设有一长槽孔22；所述的长槽孔22带有弧度且所述的弧度向内凸，所述的手术刀片本体1通过连接部12上的连接孔2与手术刀柄连接；所述的刀刃部11两侧面中间位置均设有一防滑部3，所述的防滑部3设有防滑凸条31；所述的陶瓷材料包括以下重量份的原料组成：高岭土20份、轻质碳酸钙10份、氧化锆30份、氧化钇3份、纳米氧化铝35份、氮化铝15份、Ti（C,N）25份、三氧化钨7份、硼化二钼7份、五氧化二钽7份、石墨粉7份、二硼化锆3份。
所述的陶瓷材料手术刀片本体1硬度高于HRA93.5，抗压强度大于2300MPa，断裂韧性高于18.3 MPa.m1/2。
所述的防滑部3形状呈圆形或方形。
所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺：
1）制备粉末混合物：将配方量的各原料组分混合均匀后至于高能球磨机中并加入50%乙醇或去离子水，球料比为1:10，球磨机的转速为450rpm球磨6h后过200目筛得陶瓷原料粉末；
2）成型压坯：将步骤1）制得的陶瓷原料粉末放入手术刀片模具中通过压力成型压制成压坯，压坯压力为250MPa；
3）预烧：将步骤2）压坯放入到高温箱式电炉中，先在温度500℃下保温2h后再在温度150℃下保温0.5h，再自然冷却至室温得预烧体；
4）烧结：将压坯至于氮气保护中进行烧结，先在温度1200℃保温烧结4h，再以10℃/min的升温速率升温到1500℃下保温烧结为1h，再以5℃/min的降温速率降温到600℃下保温烧0.5h，最后自然冷却至室温即得陶瓷手术刀片。
实施例3
如图1所示，本实施例中所述的一种防滑高强硬度陶瓷外科用手术刀片，包括手术刀片本体1，所述的手术刀片本体1由陶瓷材料制成且包括刀刃部11和连接部12，所述的刀刃部11和连接部12为一体结构；所述的刀刃部11包括第一刀刃部111和第二刀刃部112，所述的第一刀刃部111位于手术刀片本体1左端且斜向右设置，第二刀刃部112位于手术刀片本体1下端且斜向下设置，所述的第一刀刃部111长度小于所述的第二刀刃部112长度且所述的第一刀刃部111和第二刀刃部112之间的夹角呈锐角；所述的连接部12左端与所述的刀刃部11固定连接，右端呈半圆弧形结构，所述的连接部12上设有连接孔2，所述的连接孔2由若干圆形孔21构成且相邻两个圆形孔21之间设有一长槽孔22；所述的长槽孔22带有弧度且所述的弧度向内凸，所述的手术刀片本体1通过连接部12上的连接孔2与手术刀柄连接；所述的刀刃部11两侧面中间位置均设有一防滑部3，所述的防滑部3设有防滑凸条31；所述的陶瓷材料包括以下重量份的原料组成：高岭土15份、轻质碳酸钙7份、氧化锆25份、氧化钇2份、纳米氧化铝25份、氮化铝10份、Ti（C,N）20份、三氧化钨5份、硼化二钼5份、五氧化二钽5份、石墨粉5份、二硼化锆2份。
所述的陶瓷材料手术刀片本体1硬度高于HRA93.5，抗压强度大于2300MPa，断裂韧性高于18.3 MPa.m1/2。
所述的防滑部3形状呈圆形或方形。
本发明的另一个目的在于提供所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺：
1）制备粉末混合物：将配方量的各原料组分混合均匀后至于高能球磨机中并加入50%乙醇或去离子水，球料比为1:9，球磨机的转速为400rpm，球磨5h后过200目筛得陶瓷原料粉末；
2）成型压坯：将步骤1）制得的陶瓷原料粉末放入手术刀片模具中通过压力成型压制成压坯，压坯压力为245MPa；
3）预烧：将步骤2）压坯放入到高温箱式电炉中，先在温度400-500℃下保温2-3h后再在温度100-150℃下保温0.5-1h，再自然冷却至室温得预烧体；
4）烧结：将压坯至于氮气保护中进行烧结，先在温度1000℃保温烧结5h，再以10℃/min的升温速率升温到1350℃下保温烧结为1.5h，再以5℃/min的降温速率降温到550℃下保温烧结0.8h，最后自然冷却至室温即得陶瓷手术刀片。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进，这些改进也应视为本发明的保护范围。

Claims (9)

1.一种防滑高强硬度陶瓷外科用手术刀片，其特征在于：包括手术刀片本体，所述的手术刀片本体由陶瓷材料制成且包括刀刃部和连接部，所述的刀刃部和连接部为一体结构；所述的刀刃部包括第一刀刃部和第二刀刃部，所述的第一刀刃部位于手术刀片本体左端且斜向右设置，第二刀刃部位于手术刀片本体下端且斜向下设置，所述的第一刀刃部长度小于所述的第二刀刃部长度且所述的第一刀刃部和第二刀刃部之间的夹角呈锐角；所述的连接部左端与所述的刀刃部固定连接，右端呈半圆弧形结构，所述的连接部上设有连接孔，所述的连接孔由若干圆形孔构成且相邻两个圆形孔之间设有一长槽孔；所述的长槽孔带有弧度且所述的弧度向内凸，所述的手术刀片本体通过连接部上的连接孔与手术刀柄连接；所述的刀刃部两侧面中间位置均设有一防滑部，所述的防滑部设有防滑凸条；所述的陶瓷材料包括以下重量份的原料组成：高岭土10-20份、轻质碳酸钙5-10份、氧化锆20-30份、氧化钇1-3份、纳米氧化铝25-35份、氮化铝5-15份、Ti（C,N）15-25份、三氧化钨3-7份、硼化二钼3-7份、五氧化二钽3-7份、石墨粉3-7份、二硼化锆1-3份。
2.根据权利要求1所述的一种防滑高强硬度陶瓷外科用手术刀片，其特征在于：所述的陶瓷材料包括以下重量份的原料组成：高岭土15份、轻质碳酸钙7份、氧化锆25份、氧化钇2份、纳米氧化铝25份、氮化铝10份、Ti（C,N）20份、三氧化钨5份、硼化二钼5份、五氧化二钽5份、石墨粉5份、二硼化锆2份。
3.根据权利要求1所述的一种防滑高强硬度陶瓷外科用手术刀片，其特征在于：所述的陶瓷材料手术刀片本体硬度高于HRA93.5，抗压强度大于2300MPa，断裂韧性高于18.3MPa.m1/2。
4.根据权利要求1所述的一种防滑高强硬度陶瓷外科用手术刀片，其特征在于：所述的防滑部形状呈圆形或方形。
5.根据权利要求1-4任一项所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺，其特征在于：1）制备粉末混合物：将配方量的各原料组分混合均匀后至于高能球磨机中并加入50%乙醇或去离子水球磨4-6h后过200目筛得陶瓷原料粉末；
2）成型压坯：将步骤1）制得的陶瓷原料粉末放入手术刀片模具中通过压力成型压制成压坯；
3）预烧：将步骤2）压坯放入到高温箱式电炉中，先在温度400-500℃下保温2-3h后再在温度100-150℃下保温0.5-1h，再自然冷却至室温得预烧体；
4）烧结：将压坯至于氮气保护中进行烧结，先在温度900-1200℃保温烧结4-6h，再升温到1200-1500℃下保温烧结为1-2h，再降温到500-600℃下保温烧结0.5-1h，最后自然冷却至室温即得陶瓷手术刀片。
6.根据权利要求5所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺，其特征在于：所述步骤1）球料比为1:8-10。
7.根据权利要求5所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺，其特征在于：所述步骤1）球磨机的转速为350-450rpm。
8.根据权利要求5所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺，其特征在于：所述步骤2）压坯压力为240-250MPa。
9.根据权利要求5所述的防滑高强硬度陶瓷外科用手术刀片的生产工艺，其特征在于：所述步骤3）升温速率为10℃/min，降温速率为5℃/min。
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