CN102335031B - 一次性使用穿刺器 - Google Patents

一次性使用穿刺器 Download PDF

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CN102335031B
CN102335031B CN 201110218115 CN201110218115A CN102335031B CN 102335031 B CN102335031 B CN 102335031B CN 201110218115 CN201110218115 CN 201110218115 CN 201110218115 A CN201110218115 A CN 201110218115A CN 102335031 B CN102335031 B CN 102335031B
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CN102335031A (zh
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单亚
苗长胜
杨志元
刘建霞
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Anhui Aofo Medical Equipment Technology Co., Ltd.
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Abstract

本发明涉及一次性使用穿刺器,包括用于放置密封组件的壳体(5),壳体(5)右端设有穿刺壳(8),一穿刺杆(7)由壳体(5)左端伸入,穿过壳体(5)内的密封组件到穿刺壳(8)内,其特征在于:在壳体(5)的右半内部设有一个三瓣式密封件(6),三瓣式密封件(6)的左侧壳体(5)内设有一个定位套(4),在定位套(4)的左侧壳体(5)内设有一个球形密封件(3),在壳体(5)的左端端口处设有球形密封座(2)与球形密封件(3)相配合,球形密封座(2)上具有轴向贯穿的通孔。本发明的有益效果是球形密封座内的球形弹性密封件可有效阻止穿刺杆在运动中对密封件造成的变形,能使穿刺杆在对穿刺壳作相对的转动和轴向运动时,起到密闭作用,尤其是当穿刺杆取出时,三瓣式密封件能有效密闭,从而有效的避免了因手术器械的转动和取出时造成腹腔内气体的泄漏。

Description

一次性使用穿刺器
技术领域
本发明涉及一种医疗器械,尤其是一种一次性使用穿刺器。
背景技术
在目前的腹腔镜手术中,医生使用穿刺器在患者腹部进行穿刺后,取出穿刺器的穿刺针,通过穿刺器的气腹机接口对腹腔注入二氧化碳,建立气腹,插入腹腔镜,然后医生可以在腹腔镜的监视下进行腹腔镜手术。
目前,穿刺器包括具有密封组件的壳体,壳体第一端设有穿刺壳,一穿刺针由壳体第二端伸入穿过密封组件到穿刺壳内,外壳的外周上还设有一个进气管,在外壳和固定环上设有通孔使进气管与外壳内的穿刺壳相通,在进气管的的进气端部还设有启闭阀。这种穿刺器在于手术辅助器械配合使用时,壳体的密封件不能随手术器械转动,造成在手术器械转动的过程中,密封件无法在器械外周形成有效的密封造成腹腔内的气体外泄,且器械的转动也会造成密封件变形而导致气体泄露;尤其是当穿刺杆取出时,蝶形密封件不能有效的密闭导致气体泄露。
发明内容
本发明的目的就是为了克服现有壳体的密封件不能密闭造成腹腔内的气体外泄的缺陷,而提供一种一次性使用穿刺器。 
本发明解决其技术问题所采用的技术方案是: 
一次性使用穿刺器,包括用于放置密封组件的壳体,壳体右端设有穿刺壳,一穿刺杆由壳体左端伸入,穿过壳体内的密封组件到穿刺壳内,在穿刺壳外面的穿刺杆的端部设有穿刺刀。其特征在于:在壳体的右半内部设有一个三瓣式密封件,三瓣式密封件具有轴向通孔;三瓣式密封件的左侧壳体内设有一个定位套,在定位套的左侧壳体内设有一个球形密封件,球形密封件具有轴向贯穿的通孔,在壳体的左端端口处设有球形密封座与球形密封件相配合,球形密封座上具有轴向贯穿的通孔。
在上述的主要技术方案的基础上,可以增加以下进一步完善的技术方案:
在壳体的右半侧内部的三瓣式密封件为蝶形密封件,在壳体的右半内部的内表面上具有一圈凸榫,所述的三瓣式密封件上具有一圈凹榫与壳体相配合。
在穿刺壳的外表面上设有凸形螺旋纹,所述的螺旋纹沿穿刺壳的轴向通长设置。
所述的球形密封座与壳体采用螺纹连接。
本发明的有益效果是球形密封座内的球形弹性密封件可有效阻止穿刺杆在运动中对密封件造成的变形,能使穿刺杆在对穿刺壳作相对的转动和轴向运动时,起到密闭作用,尤其是当穿刺杆取出时,三瓣式密封件能有效密闭,克服了在先的蝶形密封件不能有效的密闭而导致气体泄露的弊端,双重密闭的效果,从而有效的避免了因手术器械的转动和取出时造成腹腔内气体的泄漏。
下面结合附图和实施例对本发明进一步说明。
附图说明:
图1为本发明实施例的主视图。
具体实施方式
如图1所示,一次性使用穿刺器,包括用于放置密封组件的壳体5,壳体5右端设有穿刺壳8,在穿刺壳8的外表面上设有凸形螺旋纹,所述的凸形螺旋纹沿穿刺壳8的轴向通长设置,穿刺壳8与壳体5采用快速螺纹压紧密封圈的方法连接,在壳体5的右半内部设有一个三瓣式密封件6,三瓣式密封件6具有轴向通孔,三瓣式密封件6的左端具有阶梯状的法兰,在三瓣式密封件6的法兰右端面上具有一圈凹榫,在壳体5的右半内部的内表面上具有一圈凸榫与三瓣式密封件6相配合,三瓣式密封件6的左侧壳体内设有一个定位套4,定位套4的右端与三瓣式密封件6的左端面相配合,且定位套4的右端为一个阶梯状的端部,可以限制三瓣式密封件6的轴向运动和径向运动,在定位套4的左侧壳体5内设有一个球形密封件3,球形密封件3为具有弹性的球形密封件3,球形密封件3具有一个球形密封部分,球形密封部分具有轴向贯穿的通孔,球形密封件3的左端具有一个法兰,法兰端面为一个不规则的曲面,在壳体5的左端端口处设有球形密封座2,球形密封座2具有球形座部分与球形密封件3的球形密封部分相配合,球形密封座2的左端具有与球形密封件3的不规则曲面相反的不规则的曲面相配合,球形密封座2上具有轴向贯穿的通孔,球形密封座2与壳体5采用螺纹连接;
一根穿刺杆7由球形密封座2端口伸入,依次穿过球形密封件3、三瓣式密封件6,伸入到穿刺壳8内,在穿刺壳8里面的穿刺杆的端部设有穿刺刀9,所述的穿刺刀9采用医用高分子材料制作,其医用高分子材料刀口不如金属刀口锋利,穿刺时对人体的腹膜纤维损伤较小,金属穿刺刀由于刀口锋利,穿刺时将直接切断腹膜纤维,而医用高分子材料制成的穿刺刀由于刀口较钝,穿刺时相当于将人体的腹膜纤维慢慢拨开的形式,较好地保护了人体的腹膜纤维;
在穿刺杆7左端设有手柄1,手柄1与穿刺杆9采用卡扣形式牢固连接;
在外壳5的外周上还设有一个进气管,在外壳和固定环上设有通孔使进气管与外壳内的穿刺壳相通,在进气管的的进气端部还设有启闭阀10。
本装置使用时:1、制造人工气腹:在脐上部1cm处将一次性使用穿刺器刺入腹部,确定一次性使用穿刺器位于游离腹腔后,拔出穿刺针,通过进气管向腹腔内注入二氧化碳气体,形成人工气腹;2、建立手术通道:根据手术需要做2~4个5~8mm的手术切口,置入穿刺壳;3、连接光学系统:将腹腔镜与冷光源、电视摄像系统、录像系统、打印系统连接,并经穿刺壳插入腹腔。通过光学数字转换系统,将腹腔内影响反应在电视屏幕上;4、进行手术:根据光学数字转换系统反映在屏幕上的图像,经穿刺壳插入腹腔镜手术器械进行手术;5、根据需要使用其他辅助器械,在手术进行中,球形密封件和三瓣式密封件可以随手术器械转动和轴向运动时保持有效密闭。6、三瓣式密封件显著作用是在穿刺杆(或需使用的其他手术器械)取出时,三瓣式密封件能有效密闭,克服了在先的蝶形密封件不能有效的密闭而导致气体泄露的弊病。

Claims (4)

1.一次性使用穿刺器,包括用于放置密封组件的壳体(5),壳体(5)右端设有穿刺壳(8),一穿刺杆(7)由壳体(5)左端伸入,穿过壳体(5)内的密封组件到穿刺壳(8)内,在穿刺壳(8)里面的穿刺杆(7)的端部设有穿刺刀(9),其特征在于:在壳体(5)的右半侧内部设有一个三瓣式密封件(6),三瓣式密封件(6)具有轴向通孔;三瓣式密封件(6)的左侧壳体(5)内设有一个定位套(4),在定位套(4)的左侧壳体(5)内设有一个球形密封件(3),球形密封件(3)具有轴向贯穿的通孔,在壳体(5)的左端端口处设有球形密封座(2)与球形密封件(3)相配合,球形密封座(2)上具有轴向贯穿的通孔;球形密封件(3)的左端具有一个法兰,法兰端面为一个不规则的曲面, 球形密封座(2)的左端具有与球形密封件(3)的不规则曲面相配合的相反的不规则曲面。
2.根据权利要求1所述的一次性使用穿刺器,其特征在于:在壳体(5)的右半侧内部的三瓣式密封件为蝶形密封件,在壳体(5)的右半侧内部的内表面上具有一圈凸榫,所述的三瓣式密封件(6)上具有一圈凹榫与壳体相配合。
3.根据权利要求1所述的一次性使用穿刺器,其特征在于:在穿刺壳(8)的外表面上设有凸形螺旋纹,所述的凸形螺旋纹沿穿刺壳(8)的轴向通长设置。
4.根据权利要求1所述的一次性使用穿刺器,其特征在于:所述的球形密封座(2)与壳体(5)采用螺纹连接。
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Publication number Priority date Publication date Assignee Title
CN103800055B (zh) * 2014-02-28 2016-01-06 无锡市舒康医疗器械有限公司 一次性使用穿刺器
CN104068921B (zh) * 2014-06-26 2016-06-29 浙江天松医疗器械股份有限公司 穿刺器
CN104546080B (zh) * 2015-01-28 2017-07-18 联合微创医疗器械(深圳)有限公司 一种全分离式穿刺器
CN107115136B (zh) * 2017-06-12 2020-05-22 常州艾隆精密机械有限公司 一种腹腔穿刺器

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Publication number Priority date Publication date Assignee Title
CN2587362Y (zh) * 2002-09-23 2003-11-26 佛山特种医用导管有限责任公司 套管穿刺针
CN101396255A (zh) * 2007-09-25 2009-04-01 Tyco医疗健康集团 用于手术介入器件的密封组件
CN202173449U (zh) * 2011-08-01 2012-03-28 安徽奥弗医疗设备科技有限公司 一次性使用穿刺器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2587362Y (zh) * 2002-09-23 2003-11-26 佛山特种医用导管有限责任公司 套管穿刺针
CN101396255A (zh) * 2007-09-25 2009-04-01 Tyco医疗健康集团 用于手术介入器件的密封组件
CN202173449U (zh) * 2011-08-01 2012-03-28 安徽奥弗医疗设备科技有限公司 一次性使用穿刺器

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