CN107174337B - 一种腹腔镜微创手术电凝钳 - Google Patents

一种腹腔镜微创手术电凝钳 Download PDF

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CN107174337B
CN107174337B CN201710529812.9A CN201710529812A CN107174337B CN 107174337 B CN107174337 B CN 107174337B CN 201710529812 A CN201710529812 A CN 201710529812A CN 107174337 B CN107174337 B CN 107174337B
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王艳
韩冰冰
王永鹏
王霞
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Wuhan Hengtai Bainian Trading Co ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14Probes or electrodes therefor
    • A61B18/1442Probes having pivoting end effectors, e.g. forceps
    • A61B18/1445Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14Probes or electrodes therefor
    • A61B18/1482Probes or electrodes therefor having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C14/00Alloys based on titanium
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005Cooling or heating of the probe or tissue immediately surrounding the probe
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00589Coagulation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00595Cauterization

Abstract

本发明公开了一种腹腔镜微创手术电凝钳,属于医疗器材领域,旨在提供防止钳头损坏组织的电凝钳,包括枪把、钳管、拉杆、钳头,所述的枪把用来外科手术人员用手进行操作,所述的枪把(1)设有扳机(101);钳管连接枪把(1)和钳头(3);拉杆(5)位于钳管内部,并将枪把的动力传输到钳头(3),控制钳头的开闭,钳头连接钳管,并和拉杆(5)联动,钳头和导线连接。

Description

一种腹腔镜微创手术电凝钳
技术领域
本发明属于医疗器材领域,具体是一种电凝钳。
背景技术
腹腔镜微创手术是现在越来越使用广泛的一种手术,具有手术效率高,对人体损伤小等优点,减少病人恢复的时间。
在腹腔镜微创手术中经常要使用到电凝钳进行灼烧止血,具有非常好的效果,在灼烧止血的过程当中,需要用钳头夹紧组织。而在夹紧组织的时候,由于钳头、拉动装置等都是刚性的,有时会时钳头对组织夹持过紧,损伤夹持的组织。
发明内容
本发明的目的在于:针对上述存在的问题,提供一种腹腔镜微创手术电凝钳,包括:
枪把,所述的枪把用来外科手术人员用手进行操作,所述的枪把设有扳机;
钳管,所述的钳管连接枪把和钳头,所述的钳管为中空结构;
拉杆,拉杆位于钳管内部,并将枪把的动力传输到钳头,控制钳头的开闭,所述的拉杆包括第一拉杆以及与第一拉杆联动的第二拉杆,所述的第一拉杆和第二拉杆通过第一弹簧连接,第一拉杆和第二拉杆之间设有卡位装置,当第一拉杆和第二拉杆卡位连接的时候,第一弹簧处于拉紧状态 ,第一拉杆和第二拉杆可以沿着卡位装置沿着钳管轴向方向移动。钳头,所述的钳头连接钳管,并和拉杆联动,钳头和导线连接。
作为改进,所述的第一拉杆包括有一个沿着轴向方向凸出的凸部,凸部末端设有第一弹簧第二拉杆沿着轴向方向设有凹部,凹部深度大于凸部的长度,第一弹簧的一端和凸部末端连接,另一端和凹部底部连接,当凸部完成伸入到凹部中,第一弹簧位于拉紧状态。
当第一弹簧处于拉紧状态的时候,这个时候扣扳机,第一拉杆和第二拉杆不会相对移动,可以正常控制钳头的开闭,而当钳头闭合或者即将闭合的时候,拉杆传动的力会增大,这个时候弹簧所受的力会大于开始拉紧状态的力,第一拉杆和第二拉杆会相互移动,这个时候可以防止钳头过紧夹持组织,阻止了对组织的损伤。第一弹簧的初始拉紧状态以及弹簧的参数等,可以钳头的开闭需要进行少数后的几次实验就可以设置,而凹部和第二拉杆可以是一体式成型,也可以是固定连接,可以在将第一弹簧按照在第二拉杆上后再安装凹部。
在一些实施方式中,第一拉杆、第二拉杆均为中空结构,和钳头连接的导线从中空穿过,导线也可以从第一弹簧中间穿过,导线也可以从侧面等方向穿过。
作为改进,所述的第二拉杆上设有一个固定座,第二拉杆上套结有第二弹簧,第二弹簧的一端连接固定座或者被固定座卡住,另一端被钳管或者枪把固定。这种方式设置的目的有二:其一,当手松紧扳机的时候,钳头会自动回到打开状态,不需要手动打开;其二,拉扳机的时候,也会给人手一个方向的力,防止钳头闭合过紧,保护组织。
本发明的设计,使用的时候,可以放置钳头过紧夹住组织,能够 有效的防止人体组织被损伤。
其中,本发明钳头导体部分优选采用钛合金材料制备,采用钛合金材料具备耐热性、强度、塑性、韧性、生物相容性均较好,但是现有的钛合金抗氧化性不足,主要在于钛合金金属杂质元素、如氧较多,并且耐磨性不足,在持针器方面使用有一定的不足。为了解决上述问题,本发明同时公开了一种钛合金材料,所述的钛合金采用真空熔融的方式,其中真空熔融的方式如下:、
步骤一、选用钛原料,放入熔炉中;
步骤二、打开电源、通入氩气,保持真空度为15Kpa-40Kpa,加热到1700℃-1800℃进行熔融,根据熔体变化适当调整功率使得气泡稳定;
步骤三、当没有气泡生成的时候,通入氩气,保持真空度为50 Kpa -100 Kpa,此时加入合金元素,所述的合金相对于100份钛,具体为0.001-0.05份锂、0.01-0.05份锌、0.001-0.05份铬、0.001-0.05份镧和0.001-0.05份铈。其中加入合金的元素按照锂、铬、镧、铈的顺利,这样可以减少合金元素的挥发流失, 合金元素分别为100份钛,0.04份锂、0.03份锌、0.04份铬、0.02份镧和0.02份铈。
步骤四、待熔融10min-50min后并在底部通过氮气搅拌,进行冷却,冷却的时候用超声波辐照结晶,超声波功率为M*(20-150)W,M为熔融合金质量单位为kg,其中通过超声波辐照可以提高钛合金晶粒致密性,使得耐热性、强度得到很大提高,其中实验发现,通入氮气可以充分搅拌,使结晶材料更加的均匀。
步骤五、铸锭,后处理加工。
在本发明中经过实验对比,采用上述方法,可以大大的提高钛合金的抗氧化性、耐磨性等性能,能够使得钛合金制备的持针器应用在微创手术领域,让持针器安全的进入人体内进行相应的手术操作,并且本发明公开的钛合金材料具有优异的电导率性能,在医疗上具有广泛的使用前景。
附图说明
图1是实施例1的结构示意图;
图2是实施例1隐去钳管的结构示意图;
图3是实施实施例1第一拉杆和第二拉杆的连接图;
图中标记:1-枪把,101-扳机,2-钳管,3-钳头,4-连接座,5-拉杆,501-第一拉杆,502-凸部,503-第一弹簧,504-第二拉杆,505-凹部,506-固定座,507-第二弹簧。
具体实施方式
具体实施例1:
本实施例公开了一种腹腔镜微创手术电凝钳,包括:
枪把1,所述的枪把用来外科手术人员用手进行操作,所述的枪把1设有扳机101;
钳管2,所述的钳管连接枪把1和钳头3;
拉杆5,拉杆(5)位于钳管内部,并将枪把的动力传输到钳头3,控制钳头的开闭,所述的拉杆(5)包括第一拉杆(501)以及与第一拉杆联动的第二拉杆(504),所述的第一拉杆包括有一个沿着轴向方向凸出的凸部502,凸部(502)末端设有第一弹簧503,第二拉杆沿着轴向方向设有凹部505,凹部深度大于凸部的长度,第一弹簧的一端和凸部末端连接,另一端和凹部底部连接,当凸部完成伸入到凹部中,第一弹簧位于拉紧状态。
钳头3,所述的钳头连接钳管,并和拉杆5联动,钳头和导线连接。
第二拉杆上设有一个固定座506,第二拉杆上套结有第二弹簧507,第二弹簧的一端连接固定座或者被固定座卡住,另一端被钳管或者枪把1固定。

Claims (3)

1.一种腹腔镜微创手术电凝钳,其特征在于,包括:
枪把(1),所述的枪把用来外科手术人员用手进行操作,所述的枪把(1)设有扳机(101);
钳管(2),所述的钳管连接枪把(1)和钳头(3);
拉杆(5),拉杆(5)位于钳管内部,并将枪把的动力传输到钳头(3),控制钳头的开闭,所述的拉杆(5)包括第一拉杆(501)以及与第一拉杆联动的第二拉杆(504),所述的第一拉杆和第二拉杆通过第一弹簧(503)连接,第一拉杆和第二拉杆之间设有卡位装置,当第一拉杆和第二拉杆卡位连接的时候,第一弹簧(503)处于拉紧状态 ,第一拉杆和第二拉杆可以沿着卡位装置沿着钳管轴向方向移动;
钳头(3),所述的钳头连接钳管,并和拉杆(5)联动,钳头和导线连接,钳头导体为钛合金,所述的钛合金按照重量份包括以下组分:
0.001-0.05锂、0.01-0.05锌、0.001-0.05铬、0.001-0.05镧和0.001-0.05铈,100份钛和不大于总含量0.01%的常规杂质; 根据所述的钛合金按照真空熔融的方法制备,所述的钛合金的制备方法如下:
步骤一、选用钛原料,放入熔炉中;
步骤二、打开电源、通入氩气,保持真空度为15Kpa-40Kpa,加热到1700℃-1800℃进行熔融,根据熔体变化适当调整功率使得气泡稳定;
步骤三、当没有气泡生成的时候,通入氩气,保持真空度为50 Kpa -100 Kpa,此时加入合金元素;
步骤四、待熔融10min-50min后,进行冷却,冷却的时候用超声波辐照结晶,超声波功率为M*(20-150)W,M为熔融合金质量;
步骤五、铸锭,后处理加工。
2.根据权利要求1所述的腹腔镜微创手术电凝钳,其特征在于,所述的第一拉杆包括有一个沿着轴向方向凸出的凸部(502),凸部(502)末端设有第一弹簧(503),第二拉杆沿着轴向方向设有凹部(505),凹部深度大于凸部的长度,第一弹簧的一端和凸部末端连接,另一端和凹部底部连接,当凸部完成伸入到凹部中,第一弹簧位于拉紧状态。
3.根据权利要求2所述的腹腔镜微创手术电凝钳,其特征在于,所述的第二拉杆上设有一个固定座(506),第二拉杆上套结有第二弹簧(507),第二弹簧的一端连接固定座或者被固定座卡住,另一端被钳管或者枪把(1)固定。
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US4819633A (en) * 1986-09-02 1989-04-11 Richard Wolf Gmbh Coagulation forceps
US5913874A (en) * 1997-09-25 1999-06-22 Cabot Technology Corporation Cartridge for a surgical instrument
CN203852405U (zh) * 2014-04-23 2014-10-01 潍坊医学院 一种微创手术介入导管内置抓钳
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