CN109498149B - 手术工具 - Google Patents
手术工具 Download PDFInfo
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- CN109498149B CN109498149B CN201811612725.0A CN201811612725A CN109498149B CN 109498149 B CN109498149 B CN 109498149B CN 201811612725 A CN201811612725 A CN 201811612725A CN 109498149 B CN109498149 B CN 109498149B
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- 229910052751 metal Inorganic materials 0.000 claims description 53
- 239000002184 metal Substances 0.000 claims description 53
- 238000005253 cladding Methods 0.000 claims description 27
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 5
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 description 11
- 238000005452 bending Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002683 hand surgery Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002406 microsurgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 210000000697 sensory organ Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000012414 sterilization procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明提供一种手术工具。手术工具,包括手术工具头和杆部,其中手术工具头与杆部连接。杆部为挠性杆,并包括挠性芯部和挠性套管。挠性套管具有内腔,挠性芯部可滑动地位于内腔内。手术工具头包括两个钳夹,挠性芯部和挠性套管分别连接到两个钳夹。挠性芯部能够相对于挠性套管滑动使得两个钳夹做相对开合运动。根据本发明的手术工具的杆部能够自由弯曲到任何形状,因此能够集成到柔性手术工具上,可以在手术过程中有更大的应用范围。
Description
技术领域
本发明涉及医疗器械领域,具体地涉及一种手术工具。
背景技术
手术钳多用于脑外科、显微外科、五官科、妇产科以及手外科等较为精细的手术,且其使用范围逐渐扩大。现有技术的手术钳包括手术工具头、中部的杆和致动器。手术工具头和致动器通过中部的杆连接。现有技术中的尾部装置为刚性结构,无法实现自由弯曲,因此无法集成到柔性手术工具上,限制了其使用范围。
因此,本领域需要一种能够自由挠曲的手术工具。
发明内容
本发明的目的是提供一种双极电手术工具,包括:手术工具头和杆部,其中所述手术工具头与所述杆部连接,其中
所述杆部为挠性杆,并包括:
挠性芯部;
挠性套管,所述挠性套管具有内腔,所述挠性芯部可滑动地位于所述内腔内;
其中所述手术工具头包括两个钳夹,所述挠性芯部和所述挠性套管分别连接到所述两个钳夹,所述挠性芯部能够相对于所述挠性套管滑动,从而带动所述两个钳夹做相对开合运动。
在一较佳实施例中,所述挠性芯部包括:
弹性金属丝;
第一包覆管,所述第一包覆管包裹所述弹性金属丝并相对于所述弹性金属丝固定。
在一较佳实施例中,所述挠性套管包括:
挠性金属管,所述金属管形成所述内腔;以及
第二包覆管,所述第二包覆管包裹所述金属管并相对于所述金属管固定。
在一较佳实施例中,所述两个钳夹是两个电极,所述两个电极分别连接到所述金属管和所述弹性金属丝。
在一较佳实施例中,所述金属管由螺旋形金属带、金属丝网或波纹金属管形成。
在一较佳实施例中,所述弹性金属丝由镍钛合金制成。
在一较佳实施例中,所述第一包覆管由耐磨树脂制成。
在一较佳实施例中,所述第二包覆管由树脂或热缩管制成。
在一较佳实施例中,所述第一包覆管由四氟乙烯制成。
在一较佳实施例中,所述挠性套管延伸到所述手术工具头内部。
本发明与现有技术相比,根据本发明的手术工具的杆部能够自由弯曲到任何形状,因此能够集成到柔性手术工具上,可以在手术过程中有更大的应用范围。
附图说明
图1是根据本发明的手术工具的一实施例的示意图。
图2是根据本发明的手术工具的一实施例的立体图。
图3是根据本发明的手术工具的半剖切立体图。
图4是根据本发明的手术工具的另一实施例的示意图。
图5是根据本发明的手术工具的另一实施例的立体图。
图6是根据本发明的手术工具的另一实施例的手术工具头的内部结构图。
具体实施方式
以下将结合附图对本发明的优选实施例进行详细说明,以便更清楚理解本发明的目的、特点和优点。应理解的是,附图所示的实施例并不是对本发明范围的限制,而只是为了说明本发明技术方案的实质精神。
图1是根据本发明的手术工具的一实施例的手术工具头11和杆部12的示意图。其中杆部12为挠性杆,可以任意弯曲。手术工具头11包括第一钳夹111、第二钳夹112、基座113和绝缘体114。杆部12为多层嵌套结构。其中杆部12具有挠性芯部,在所示实施例中,挠性芯部为超弹性金属丝121,在超弹金属丝121的外部包裹有第一包覆管122。该第一包覆管122紧密地包裹住超弹金属丝121并相对于该超弹金属丝121固定。但应理解,本发明的挠性芯部并不限于此,只要具有挠性能够弯曲的芯部都在本发明的范围内。在第一包覆管122外部设有套管,该套管具有内腔,该套管可由金属管123和第二包覆管124构成,超弹性金属丝121和第一包覆管122可滑动地位于该金属管123的内腔内。在所示实施例中,该金属管123形成内腔,超弹性金属丝121和第一包覆管122可滑动地位于该金属管123的内腔内。在该金属管123的外部包裹有第二包覆管124,同样地,第二包覆管124紧密地包裹住金属管123并相对于金属管123固定,从而将金属管123与外界隔绝。在该结构中,超弹金属丝121和金属管123分别与手术工具头11的两个钳夹111和112连接。而超弹性金属丝121和第一包覆管122能够一起相对于金属管123和第二包覆管124在金属管123的内腔内往复滑动,通过往复滑动能够使工具头11的两个钳夹的张开和闭合。其中超弹性金属丝121和第一包覆管122相对于金属管123和第二包覆管124的移动可通过与杆部12连接的致动器(未示出)来实现。致动器可以是各种形式,例如剪刀结构的把手或者其他能够使得挠性芯部能够相对于挠性套管相对滑动的任何其他设备。
在图1所示的实施例中,两个钳夹111和112可分别形成有电极,而两个电极分别与上述超弹性金属丝121和金属管123电连接,从而能够通过超弹金属丝121和金属管123向两个电极供电。此时,手术工具可用作双极电凝钳,实现凝血等功能。而第一包覆管122和第二包覆管124可用作绝缘层,分别将超弹金属丝121和金属管123以及金属管123与外部电绝缘。
其中金属管123还具有支撑作用,能够保持内腔不塌陷并保持金属管123与第一包覆管122之间的间隙,从而避免超弹金属丝121和第一包覆管122往复滑动时金属管123被拉扯,尤其是由螺旋形金属带和金属丝网的制成的金属管123。可以呈各种形式,只要能够便于金属管123弯曲即可。例如,如图1所示,金属管123呈螺旋形金属带的形式。金属管123也可由金属丝网或者波纹金属管形成。
较佳地是,在第一包覆管122与金属管123之间形成有间隙,该间隙较佳地沿着杆部12的长度均匀一致,从而避免因外界压迫而使得超弹金属丝121和第一包覆管122运动阻力增大。此外,金属管123的内腔一直延续到手术工具头11内部,由于手术工具为一种医疗器械,其有严格的消毒灭菌程序。因此,通过向该内腔注入水及消毒液等可以更有效地对手术工具进行消毒。
超弹金属丝121可由任何合适的金属制成。较佳地是,超弹金属丝121由镍钛合金制成,能够以任意方向弯曲,且镍钛合金具有良好的记忆能力,便于杆部12恢复原状。第一包覆管122通常由耐磨树脂制成,从而能够承受相对于金属管123的往复运动,延长手术工具的寿命。较佳地,第一包覆管122由四氟乙烯制成,四氟乙烯管的光滑表面及其自有的不粘型,可以减小液体流动的阻力,可以减小菌斑等附着力,提高消毒效果。
第二包覆管124由较佳地树脂制成。为了方便制造,也可用热缩管来形成第二包覆管124。
在图1所示的实施例中,手术工具头11包括绝缘体114、基座113和两个钳夹111和112。其中绝缘体114供连接到两个电极的杆部12穿过其中。基座113从绝缘体114朝向钳夹延伸。在所示实施例中,基座113为从绝缘体114的外周处直径相对位置沿径向延伸的两个延伸件。其中第一钳夹111通过枢轴131枢转连接到基座113,而如图3所示,第二钳夹112在比枢轴131更靠近绝缘体114的位置处通过枢轴132枢转连接到第一钳夹112。而第二钳夹112则在靠近绝缘体114的端部通过枢轴133枢转连接到超弹金属丝121。由此,当超弹金属丝121和第一绝缘管122在金属管123内往复滑动时,推动第二钳夹112相对于第一钳夹111绕枢轴132作枢转运动,并同时推动第一钳夹111绕枢轴131作枢转运动,由此实现两个钳夹111和112的打开和关闭。此外,在两个钳夹111和112用作电极的情况下,在枢轴132处的枢轴销的外周可设置绝缘套筒,从而确保两个电极之间的绝缘。
图2和3分别示出了根据本发明第二实施例的手术工具的手术工具头11和杆部12示意图和立体图。其杆部12的结构与上述实施例相同。手术工具头11包括绝缘体114’和两个钳夹111’和112’。其中第一钳夹111’固定到绝缘体114’,而第二钳夹112’呈“Y”字形并在枢轴131’处枢转连接到第一钳夹111’,且其中枢轴131’与绝缘体114’间隔开一定距离。如图6所示,在第一钳夹111’内设有轴向滑动通道141,而超弹金属丝121与该滑动通道内的滑块142连接,从而,超弹金属丝121和第一绝缘管122在金属管123内的滑动带动滑块142在滑动通道141内滑动。此外,在滑块142的两侧上设有突起151。钳夹112’靠近绝缘体114’具有两个分叉部,该两个分叉部上设有弧形滑槽152,突起151能够在滑槽152内滑动,因此滑块142以及由此突起151的滑动通过滑槽152带动第二钳夹112’相对于第一钳夹111’枢转,从而实现两个钳夹之间的打开和闭合。此外,在两个钳夹111和112用作电极的情况下,在131’处的枢轴销的外周可设置绝缘套筒,从而确保两个电极之间的绝缘。
当然,本发明并不限于上述两个实施例,而是可应用于其他结构的手术工具而不脱离本发明的范围。
以上已详细描述了本发明的优选实施例,但应理解到,在阅读了本发明的上述讲授内容之后,本领域技术人员可以对本发明作各种改动或修改。这些等价形式同样落于本申请所附权利要求书所限定的范围。
Claims (7)
1.一种手术工具,包括:手术工具头和杆部,其中所述手术工具头与所述杆部连接,其特征在于,
所述杆部为挠性杆,并包括:
挠性芯部;
挠性套管,所述挠性套管具有内腔,所述挠性芯部可滑动地位于所述内腔内;
其中所述手术工具头包括两个钳夹,所述挠性芯部和所述挠性套管分别连接到所述两个钳夹,所述挠性芯部能够相对于所述挠性套管滑动,从而带动所述两个钳夹做相对开合运动;
所述挠性芯部包括:
弹性金属丝;以及
第一包覆管,所述第一包覆管包裹所述弹性金属丝并相对于所述弹性金属丝固定;
所述挠性套管包括:
金属管,所述金属管形成所述内腔;以及
第二包覆管,所述第二包覆管包裹所述金属管并相对于所述金属管固定;
所述两个钳夹是两个电极,所述两个电极分别连接到所述金属管和所述弹性金属丝。
2.根据权利要求1所述的手术工具,其特征在于,
所述金属管由螺旋形金属带、金属丝网或波纹金属管形成。
3.根据权利要求1所述的手术工具,其特征在于,
所述弹性金属丝由镍钛合金制成。
4.根据权利要求1所述的手术工具,其特征在于,
所述第一包覆管由耐磨树脂制成。
5.根据权利要求1所述的手术工具,其特征在于,
所述第二包覆管由树脂或热缩管制成。
6.根据权利要求1所述的手术工具,其特征在于,
所述第一包覆管由四氟乙烯制成。
7.根据权利要求1所述的手术工具,其特征在于,
所述挠性套管延伸到所述手术工具头内部。
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CN201811612725.0A CN109498149B (zh) | 2018-12-27 | 2018-12-27 | 手术工具 |
PCT/CN2019/128984 WO2020135664A1 (zh) | 2018-12-27 | 2019-12-27 | 手术工具 |
US17/292,548 US20220000534A1 (en) | 2018-12-27 | 2019-12-27 | Surgical tool |
EP19905526.0A EP3903709A4 (en) | 2018-12-27 | 2019-12-27 | SURGICAL INSTRUMENT |
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CN109498149B (zh) * | 2018-12-27 | 2024-03-29 | 北京术锐机器人股份有限公司 | 手术工具 |
CN110772333B (zh) * | 2019-04-25 | 2023-11-14 | 深圳市精锋医疗科技股份有限公司 | 末端器械及手术器械 |
CN113116412B (zh) * | 2019-12-30 | 2024-03-29 | 北京术锐机器人股份有限公司 | 一种微型手术工具头 |
DE102021201311A1 (de) * | 2021-02-11 | 2022-08-11 | Aesculap Ag | Chirurgisches Instrument, Werkzeugeinrichtung für ein solches chirurgisches Instrument und Verfahren zur Herstellung einer solchen Werkzeugeinrichtung |
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EP3903709A4 (en) | 2022-03-16 |
WO2020135664A1 (zh) | 2020-07-02 |
CN109498149A (zh) | 2019-03-22 |
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