CN102125450B - 外科用切割吻合器 - Google Patents
外科用切割吻合器 Download PDFInfo
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Abstract
一种外科用切割吻合器，包括抵钉座（2）、组件座（3）、吻切组件（5）、击发装置（6）以及操纵抵钉座（2）的闭合装置，吻切组件（5）安装在组件座（3）上，组件座（3）头部和中部各设置有一个定位槽（3-1），并在抵钉座（2）上对应的设置有两个与定位槽（3-1）配合的定位销（2-1）。本发明在吻切厚组织时，抵钉部与吻切组件能准确定位，提高了器械刚性，保证了前后吻合高度的一致性及吻合钉成形质量。
Description
技术领域
本发明涉及医疗器械领域，具体地说，涉及一种外科用切割吻合器。
背景技术
切割吻合器是对消化道等生理组织施行外科手术时经常使用的一种医疗器械，但对于胃组织进行横断吻合切除时，使用现有切割吻合器（请参阅图1）存在以下缺点：
1）手术时，对于较厚的胃组织，在闭合压缩组织时，组织对器械的反力较大，由于器械前端为悬臂设计，器械刚性较差，抵钉座会上翘变形，使前端吻合高度H变大，同时也会左右偏移，造成吻合钉成形不良，无法有效吻合组织，影响手术质量，给手术安全带来影响。
2）另外对于吻合不同的组织，由于个体或组织差异，吻合高度是不同的，一旦选定器械，现有技术的闭合高度无法调整，这样在临床手术中，有可能压伤组织、或吻合高度偏大，影响手术质量。
3）另外，对于吻合长度大于80mm以上的器械，由于击发行程较长，医生在用手动击发时，如遇击发阻力较大时，会使击发过程困难，甚至造成手术失败。
发明内容
本发明的目的是为了克服现有技术的不足，提供一种抵钉座能与吻切组件准确定位，并能保证前后吻合高度一致及吻合钉成形质量的外科用切割吻合器。
实现上述目的的技术方案是：一种外科用切割吻合器，包括抵钉座、组件座、吻切组件、击发装置以及操纵抵钉座的闭合装置，吻切组件安装在组件座上，组件座头部和中部各设置有一个定位槽，并在抵钉座上对应的设置有两个与定位槽配合的定位销。
操纵抵钉座的闭合装置由闭合旋钮、闭合丝杆和传动件组成，闭合旋钮和闭合丝杆螺纹连接，闭合丝杆的前端和传动件铰接，传动件上设置有销轴，并在抵钉座开有与该销轴配合的滑槽。
吻切组件由吻合钉、切割刀、推钉片和驱动斜楔组成，击发装置为电动击发装置，由驱动电机、驱动丝杆和螺母组成，驱动丝杆与驱动电机的主轴固定连接，螺母旋在驱动丝杆上，且螺母的前端抵住驱动斜楔。
击发装置上设置有操作手柄，操作手柄上设置有击发按钮，击发按钮的内端连接在一控制板上，控制板通过导线与驱动电机连接。
采用上述技术方案后，在组件座的中间和头部设置了2个定位槽口，在闭合时，通过闭合机构使抵钉部在组件座的前后槽内前后移动的同时上下运动，实现对组织的闭合，其闭合间隙可通过闭合机构进行控制。器械闭合前将吻切组件装入组件座内，使吻合钉对准抵钉座上的抵钉槽，其数量一一对应，同时切割组件与器械本体上的驱动部件完成连接。器械闭合组织后，通过电动驱动装置驱动器械本体上的驱动部件，从而推动吻切组件内斜锲，完成对生理组织的吻合与切割。
通过以上结构，实现了器械在吻切厚组织时，抵钉部与吻切组件的准确定位，提高了器械刚性，保证了前后吻合高度的一致性及吻合钉成形质量。使用电动击发装置，使击发过程更加容易以均匀速度的完成，有利于提高吻合钉的成形质量，同时改善了器械的操作性能，使得有较大行程的击发更加容易实现。
附图说明
图1为现有技术中外科用切割吻合器的结构示意图；
图2为本发明的外科用切割吻合器在闭合前的结构示意图；
图3为本发明的外科用切割吻合器在闭合后的结构示意图；
图4为图3的I部放大示意图。
具体实施方式
下面结合附图和实施例对本发明作进一步详细的说明。
如图2~4所示，一种外科用切割吻合器，包括抵钉座2、组件座3、吻切组件5、击发装置6以及操纵抵钉座2的闭合装置，吻切组件5安装在组件座3上，组件座3头部和中部各设置有一个定位槽3-1，并在抵钉座2上对应的设置有两个与定位槽3-1配合的定位销2-1。
如图3所示，操纵抵钉座2的闭合装置由闭合旋钮1、闭合丝杆13和传动件组成，闭合旋钮1和闭合丝杆13螺纹连接，闭合丝杆13的前端和传动件铰接，传动件上设置有销轴14，并在抵钉座2开有与该销轴14配合的滑槽15。
如图3所示，吻切组件5由吻合钉11、切割刀、推钉片10和驱动斜楔9组成，击发装置6为电动击发装置，由驱动电机、驱动丝杆7和螺母8组成，驱动丝杆7与驱动电机的主轴固定连接，螺母8旋在驱动丝杆7上，且螺母8的前端抵住驱动斜楔9。
如图2、3所示，击发装置6上设置有操作手柄，操作手柄上设置有击发按钮12，击发按钮12的内端连接在一控制板上，控制板通过导线与驱动电机连接。
本发明的工作原理如下：
在本发明的器械内放入要手术的生理组织4，旋转闭合旋钮1，带动闭合丝杆13移动，闭合丝杆13带动与其连接的传动件移动，该传动件上的销轴14在抵钉座2上对应的滑槽15内移动，从而推动抵钉座2闭合生理组织4，由于组件座3头部有抵钉座2定位与固定的定位槽3-1，当闭合高度H在要夹紧组织前，抵钉座2头部的定位销2-1便进入组件座3的定位槽3-1内，继续旋转闭合旋钮1压缩生理组织4至要求的吻合高度并使器械锁定在该位置，通过该结构，使抵钉座2与切割组件5准确定位。
通过启动驱动电机，驱动丝杆7旋转，使得旋在驱动丝杆上的螺母8前移，同时推动驱动斜楔9前移，驱动斜锲9推动推钉片10向上运动，使吻合钉11完成吻合及切割，通过使用电动驱动装置，使击发过程更加容易以均匀速度的完成，有利于提高吻合钉的成形质量，同时改善了器械的操作性能，使得有较大行程的击发更加容易实现。
上述对实施例的描述是为了该技术领域的技术人员能理解本发明，熟悉医疗器械行业的技术人员显然可以容易地对这些实施例做出各种修改，并把在此说明的一般原理应用到其他技术方案中，因此本发明不限于上述实施例，本行业技术人员根据本发明的揭示，对于本发明做出的改进和修改都在本发明的保护范围之内。
Claims (2)
1.一种外科用切割吻合器，包括抵钉座（2）、组件座（3）、吻切组件（5）、击发装置（6）以及操纵抵钉座（2）的闭合装置，吻切组件（5）安装在组件座（3）上，其特征在于：所述的组件座（3）头部和中部各设置有一个定位槽（3-1），并在抵钉座（2）上对应的设置有两个与定位槽（3-1）配合的定位销（2-1）；操纵抵钉座（2）的闭合装置由闭合旋钮（1）、闭合丝杆（13）和传动件组成，闭合旋钮（1）和闭合丝杆（13）螺纹连接，闭合丝杆（13）的前端和传动件铰接，传动件上设置有销轴（14），并在抵钉座（2）开有与该销轴（14）配合的滑槽（15）；吻切组件（5）由吻合钉（11）、切割刀、推钉片（10）和驱动斜楔（9）组成，击发装置（6）为电动击发装置，由驱动电机、驱动丝杆（7）和螺母（8）组成，驱动丝杆（7）与驱动电机的主轴固定连接，螺母（8）旋在驱动丝杆（7）上，且螺母（8）的前端抵住驱动斜楔（9）。
2.根据权利要求1所述的外科用切割吻合器，其特征在于：击发装置（6）上设置有操作手柄，操作手柄上设置有击发按钮（12），击发按钮（12）的内端连接在一控制板上，控制板通过导线与驱动电机连接。
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