CN101083941A - 半自动缝合设备 - Google Patents
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
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- A—HUMAN NECESSITIES
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0491—Sewing machines for surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
- A61B17/06004—Means for attaching suture to needle
- A61B2017/06019—Means for attaching suture to needle by means of a suture-receiving lateral eyelet machined in the needle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2947—Pivots
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/30—Surgical robots
Abstract
本发明涉及一种缝合身体组织的半自动缝合设备以及该设备的使用方法,其中所述设备包括:壳体;至少两个远端臂,所述远端臂连接至所述壳体并从所述壳体向远端伸出,其中,所述至少两个远端臂可独立伸出和缩回;缝合针钩,所述缝合针钩连接至所述至少两个远端臂中的每个臂的远端,其中,所述缝合针钩可垂直于其所连接的远端臂的纵轴线沿径向转动;以及至少一个控制器,所述控制器可操作以控制所述至少两个远端臂的伸出或缩回、所述缝合钩的转动以及所述缝合针钩的打开和闭合的至少一部分。
Description
相关申请的交叉引用
本发明要求U.S.临时申请60/582,752(申请日为2004年6月24日)的优先权。
技术领域
本发明涉及一种用于缝合组织的手术设备,特别是在缝合组织中使用的半自动缝合设备。在此公开的本发明特别有利于在限定的空间内或用微小缝合针进行的组织缝合。所公开的本发明还提供一种用于在缝合针刺穿且穿过要缝合的组织时优化缝合针的轨迹的机构以最小化对组织的损伤。
背景技术
在许多医疗过程中,组织的缝合可以是最耗时、冗长的组成部分之一。缝合一般需要医生各手均持握工具。组织镊子交替夹住组织和针,所以在整个缝合过程中再没有空闲的工具以固定组织。例如,习惯用右手的外科医生进行的组织缝合通常包括医生右手持握的持针器和左手持握的镊子。缝合针由右手中的持针器夹住,而组织最初由左手中的镊子夹住。接着,使针刺穿组织并且被推过组织直到持针器靠近组织。接下来,左手中的镊子释放组织并用镊子夹住针的远端。接着针从右手中的持针器中释放并通过镊子被拉出组织。然后,针的基端再次由医生右手中的持针器夹住,针从左手中的镊子中释放。接下来,缝合通过拉出组织的剩余路程而进行直到具有适当的张力使组织结合在一起。然后使用镊子再次夹住组织准备缝合针的下次插入。
通常,组织的缝合必须在通过体壁上的手术开口或者通过内窥镜或内窥镜工作通道的有限或限定的空间中进行,诸如在体腔内。在这些情况下,由于灵活性有限及潜在的视野有限,缝合过程更难进行。而且,在缝合针从持针器向镊子传送及反方向传送的缝合的部分过程中,灵活性和视野的限制增加了脱落或不当放置缝合针的可能性。为了缓解或减少一些所述困难,开发了一种如美国专利No.5,938,668中描述的缝合辅助器。在此公开的工具通过在两个延长管状件的远端上设置钳夹使医生在定位、释放以及收回缝合针方面增大了可靠性。所述钳夹可以通过使一套钳夹夹住缝合针,另一套钳夹向柄部(壳体)缩回的方式控制。接着缝合针刺穿要缝合的组织,并且穿过该组织直到其远端离开组织。接下来,缩回的构件伸出并且钳夹接合缝合针的远端。另一个构件的钳夹释放缝合针并且向柄部附近缩回。因此,该机构在限定的区域内使缝合针在两套钳夹之间穿过,而始终对针本身及组织提供具有可靠的机械的控制的安全性。
但是由这些设备提供的优点并不限于只在限定空间中进行的缝合。许多类型的手术过程,诸如吻合血管都需要使用极其微小的缝合针。由于微小缝合针的尺寸小,其从一个钳夹向另一个钳夹的自动传送减小了缝合针脱落或夹不住的可能性。而且,这种自动传送将使医生视野的焦点保持在结扎的组织上,而不用将其焦点在各手中的工具和组织之间来回转移。最终,这些设备使医生主要使用一只手就可进行缝合,因此,使医生能够使用另一只手持续地固定住组织而使缝合更精准地进行。缝合组织的稳定性的增加和缝合更精准地进行对于如缝合多层组织、缝合薄壁的血管或缝合在牵引力或张力作用下受缝合针移动产生变形而易于损坏的组织等的组织缝合是更有利的。
如上所述,在典型的缝合过程中,组织被缝合针刺穿,接着该针穿过组织并从另一侧被夹住,针在该侧被拉过剩余路线并被拉出组织。缝合针穿过组织由通过持针器或缝合设备的转动施加在缝合针上的力控制。然而,因为各缝合针因其自身的物理性质而具有给定的长度和弧形,当针穿过组织时,医生必须试图对于针的长度模仿针的弧形以在进行缝合时减小对组织的扭曲。而多种长度和弧形的缝合针增加了复杂性。
因为通常使用的持针器并不在正常手腕的转动中心持握缝合针,而是通过从医生手腕的转动中心偏离几厘米的弧形来摆动针,因此出现了另一种机械性的缺点,外科医生必须手动提供补偿性运动使针平滑地通过其弧形移动,其中针的弧形是针的尺寸和曲线的函数。而且,即使如上述设备的缝合辅助器也不使用调整至缝合针角度/弧形的钳夹或缝合钩。而缺少调整则增大了由于增大缝合针的转动中心和设备的转动中心之间的偏差而维持针通道正常弧形的难度。
因此,有利的是具有一种能够持续对缝合针进行机械性控制,而且同时提供一种驱动缝合针沿其自身限定的弧形穿过组织的机构。另外,这种设备还可以特别用于使用任何数量的多种缝合针的情况。或者,有利的是可以具有几种不同尺寸的半自动/自动缝合设备以便于适应用于从微血管或内窥镜过程中至用于缝合较大血管或心脏瓣膜的所有尺寸的缝合针。
发明内容
一种用于缝合身体组织的半自动设备,包括:壳体;至少两个远端臂,所述远端臂连接至所述壳体并从所述壳体向远端伸出,其中,所述至少两个远端臂可独立伸出和缩回;缝合针钩,所述缝合针钩连接至所述至少两个远端臂中的每个臂的远端,其中,所述缝合针钩可垂直于其所连接的远端臂的纵轴线径向转动;以及至少一个控制器,所述控制器可操作以控制所述至少两个远端臂的伸出或缩回、所述缝合钩的转动以及所述缝合针钩的打开和闭合的至少一部分。
在某些实施例中,所述半自动装置进一步包括径向驱动器,所述径向驱动器使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。所述径向驱动器可以被所述至少一个控制器启动和停止。在这些实施例的一些实施例中,所述径向驱动器是以预定的持续速率使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动,而在其它实施例中是以可变速率转动。
在某些其它实施例中,所述的半自动设备还包括:横向驱动器,所述横向驱动器从所述壳体向近端和远端伸出和缩回所述至少两个远端臂;以及纵向驱动器,所述纵向驱动器从所述壳体的纵向中心向近端和远端移动所述至少两个远端臂,并送于所述至少两个远端臂的纵向中心转动所述至少两个远端臂。而在其它实施例中,所述设备进一步包括:程序界面,其中,所述程序界面能够用于存储所述半自动设备中的设置,所述设置指导通过横向驱动器确定的所述至少两个远端臂的横向定位,以及通过纵向驱动器确定的缝合针钩的径向角度,以与预定缝合针的弧形相匹配。
在其它实施例中,所述半自动装置还包括:横向驱动器,所述横向驱动器自所述壳体向近端和远端伸出和缩回所述至少两个远端臂;纵向驱动器,所述纵向驱动器自所述壳体的纵向中心向近端和远端移动所述至少两个远端臂,并关于所述至少两个远端臂的纵向中心转动所述至少两个远端臂;以及径向驱动器,所述径向驱动器使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。在这些实施例的一些实施例中,所述设备还包括:程序界面,其中,所述程序界面可以用于存储所述半自动设备中的设置,所述设置指导通过横向驱动器确定的所述至少两个远端臂的横向定位,以及通过纵向驱动器确定的缝合针钩的径向角度,以与预定缝合针的弧形相匹配。而在这些实施例的其它实施例中,所述径向驱动器使所述至少两个远端臂围绕所述壳体的纵轴线以预定的持续速率或可变速率沿径向转动。
本发明的某些实施例还具有缝合针,所述缝合针的弧形不是圆形。
某些其它的实施例还包括万向架,所述至少两个远端臂被安装在所述万向架上,所述万向架允许所述至少两个远端臂以可变角度偏离所述壳体的纵轴线。
所述半自动装置的某些其它实施例还包括自动臂所用的附件。
本发明的其它实施例提供一种半自动缝合设备,包括:壳体;至少两个缝合钩臂,所述缝合钩臂从所述壳体向远端伸出,其中,所述至少两个缝合钩臂包括缝合钩机构;用于控制所述钩机构相对于所述缝合钩臂的径向角度的装置;用于控制独立从可缩回主钩臂或可缩回次钩臂的柄部独立向远端伸出或向所述柄部近端缩回的装置;用于通过所述可缩回主钩臂的钩机构或所述可缩回次钩臂的钩机构独立地控制扣住缝合针的装置。
本发明还提供一种采用半自动缝合设备缝合组织的方法,包括以下步骤:提供本发明的半自动设备,其中半自动设备具有两个远端臂;使用所述至少一个控制器来指导:通过连接至一个所述远端臂的所述可转动缝合针钩扣住缝合针;另一所述远端臂向所述壳体缩回,接着在所述缝合针的远端穿过待缝合组织之后另一所述远端臂伸出;通过连接至目前伸出的所述另一远端臂的可转动的缝合针钩扣住缝合针;使所述缝合针从所述第一远端臂的可转动缝合针钩上释放以接合所述针,接着所述第一远端臂向所述壳体近端缩回。
附图说明
通过结合附图参考以下说明,本发明能够被更好地理解,图中,相似的附图标记表示相似的元件,且图中:
图1示出了半自动缝合设备的一个实施例;
图2示出了半自动缝合设备缝合组织的纵向示意图;
图3示出了远端臂的座标定位以及各种缝合针的长度和弧形之间的关系。
图4显示了缝合针钩的角度定位和所用的缝合针的弧形之间的关系;
图5显示了半自动缝合装置与不同弧形的缝合针相适应的能力;
图6示出了自动缝合设备的远端臂自纵向观察点的径向位置,其中,在接近针尖的一短距离处持握针远端;
图7示出了设于远端臂端部的缝合持握钩的各种实施例。
具体实施方式
本发明提供了一种可用于缝合任何类型组织的半自动缝合设备。所述设备的特定实施例尤其适用于在例如内窥镜过程中或通过小的手术开口的限定区域中进行的组织缝合。所述设备还特别适用于使用微小的缝合针进行的缝合,例如用于吻合血管,其中该针的弧形直径仅仅为3-4mm,尽管即使使用较大的针,使用速度和方便性以及对组织的损伤的减小也是有利地。
参考图1,根据本发明的一个实施例的半自动缝合设备包括:壳体1,其在该设备的手持型中起柄部的作用或在该设备的非手持型中起连接部分的作用;一套至少一个控制器2-4;程序界面5;以及至少两个远端臂9、10,其直接或间接地耦合至壳体1。在一些实施例中,可以调整远端臂以与所述设备的纵向中心8成一限定的角度和距离从壳体1伸出。所述远端臂9、10在其最远端包括缝合针钩9a、10a。可以启动位于该自动缝合设备的壳体1上的控制器2-4使远端臂9、10缩回或伸出、各缝合针钩9a或10a的打开及闭合或远端臂9、10沿预定弧形的转动(如下文所述)。
在一些实施例中,壳体1可以完全或部分地包围侧向驱动器、纵向驱动器和/或径向驱动器。所述侧向驱动器可以独立地控制各远端臂9、10相对该设备纵向中心8的侧向位置,如图5所示。所述纵向驱动器可以独立地控制各远端臂9、10向壳体1的远端伸出或向壳体1的近端缩回,如图2所示。所述径向驱动器可以控制远端臂9、10的相互径向位置(将所述臂分开的角度,该角度的起点是自动缝合设备纵向中心8或任何其它预定的转动中心),如图5所示。该径向驱动器还可以以预定的弧形17围绕该半自动缝合设备的纵向中心8或任何其它预定的转动中心转动远端臂9、10,如图3所示。本发明可替换的半自动实施例可以使径向驱动器不具备转动远端臂9、10以通过预定的弧形17移动缝合针11的能力,而依靠医生手动操作该设备移动缝合针。
表1与图2对应的各缝合步骤
步骤 | 远端臂 | 缝合针钩 | 行为 | ||
图2 | 9 | 10 | 9 | 10 | |
A | 伸出 | 伸出/缩回 | 闭合 | 打开 | 接合针的近端 |
B | 伸出 | 缩回 | 闭合 | 打开 | 使针穿过组织 |
B-C | 伸出 | 伸出 | 闭合 | 打开 | 置于接合针的位置 |
B-C | 伸出 | 伸出 | 闭合 | 闭合 | 两个缝合针钩接合针 |
C | 伸出 | 伸出 | 打开 | 闭合 | 接合针的远端,松开针的近端 |
D | 缩回 | 伸出 | 打开 | 闭合 | 缝合针钩9开始越过组织 |
D | 缩回 | 伸出 | 打开 | 闭合 | 将针拉过组织的剩余路线 |
D-E | 伸出 | 伸出 | 打开 | 闭合 | 置于接合针的位置 |
D-E | 伸出 | 伸出 | 闭合 | 闭合 | 两个缝合针钩接合针 |
F | 伸出 | 伸出 | 闭合 | 打开 | 接合针的近端,松开针的远端 |
A | 伸出 | 缩回 | 闭合 | 打开 | 缝合针钩10开始越过组织 |
在此的公开包括使用所述半自动缝合设备的方法。在一个实施例中,本发明的半自动缝合设备可以通过缝合循环的各独立阶段进行操作,如图2所示。缝合针可以在臂9和10伸出时装载,两个缝合针钩最初均打开,接着交替地,一个缝合针钩10松开并且其远端臂10缩回,该针可以在设备如图2B所示定位时装载。本领域的技术人员易于认识到,远端臂9、10的纵向位置(即,伸出或缩回)对于针的装载并不是决定性的,几种可能的位置均可以进行缝合针初始的装载。例如,缝合循环以两个远端臂伸出并且缝合针11装载入所述远端臂9、10的缝合针钩9a、10a中开始,称作主远端臂9(另一个远端臂称作次远端臂10)的缝合针钩9a靠近缝合针11的近端接合/夹住与缝合线相连的缝合针。接着,远端臂9、10插入缝合区域,从而缝合针11的远尖端靠近要缝合的组织12。在一些实施例中,半自动缝合设备可以位于手术腔内,接合缝合设备的两个夹子以保护针不接触组织或防止与组织意外接触在夹子中的错位。接下来,次远端臂10缩回,如图2B所示(尽管次远端臂10可在装载缝合针11或将设备插入缝合区域之前缩回),并且启动径向驱动器以使两个远端臂9、10沿所使用的缝合针11的长度及形状限定的弧形17转动(如下文所述),从而使缝合针11的远端刺穿并移动穿过组织12。所述径向驱动器可以将缝合针11移动至任何位置,其中针的远端离开缝合的组织。如上所述对于缺少径向驱动器的实施例或径向驱动器未启动的情况,医生可以手动(physically)转动设备以模仿径向驱动器的行为。接着,次远端臂10伸出,如图2C所示,同时缝合针钩10a打开以接合针。由此,缝合针11通过两个缝合针钩9a/10a与夹子之间的刺穿的组织接合。接下来,主远端臂9的缝合针钩9a打开以释放针。接着,主远端臂9缩回,如图2D所示,并且接合径向驱动器使(或由医生操作使)远端臂9、10再次沿与缝合针11的曲线对应的弧形17转动,直到针离开组织。这种转动使针的近端并且带着缝合线从缝合的组织中拉过。接下来,主远端臂9纵向伸出,同时缝合针钩9a打开,如图2E所示,并且缝合针钩9a在其近端接合缝合针。然后,次远端臂10的缝合针钩10a打开以松开针,并且所述设备的近端从缝合区域拉离以在缝合部11b获得适当的张力。或者,紧接在针穿过组织之后且在针从次缝合针钩10a向主缝合针钩9a传送之前,就可以产生张力,或可以通过摄子或其它工具拉过缝合线以保证产生适当的组织的接近和张力。
所述设备还可以设计为可以引入由外科医生的左手或习惯用左手的外科医生进行的缝合,其中如上所述的臂9和10的作用将相反。
因为要缝合的组织不总是与所述缝合设备可以被引入切口的方向相切,所以所述半自动缝合设备的远端可以安装在铰链或万向架上,因此所述设备可以由外科医生操作变换角度以将缝合定向成与进行缝合要刺穿的组织相切。而且,在一些实施例中,当使缝合针刺穿组织时,可以对所述径向驱动器设定程序产生增强的初始刺穿力,而增强缝合针对于组织的机械性优点。
在这种过程中使用所述半自动缝合设备对于典型的缝合过程具有以下几个优点。例如,因为该设备使医生用一只手就可完成缝合处理,而另一只手使用传统的镊子以固定被缝合的组织,所以提高了进行缝合的精度,并在缝合针11插入过程中减小了对组织的扭曲。而且,所述半自动缝合设备不会失去对缝合针的物理控制。在包括径向驱动器的实施例中,所述设备增加了移动缝合针11通过与缝合针的弧形17相匹配的弧形的精度,从而减小了由被插入并穿过的缝合针11的力产生在组织12上的扭曲力。而且,在利用径向驱动器以移动缝合针11的实施例中,转动速率可以改变。换言之,当缝合针刺穿组织时,可以通过程序界面5对所述设备设定程序从而以设定的恒定速推动缝合针11或提供增大的初始刺穿力,从而增大缝合针11进入组织12的能力,并同时最小化因其插入而产生的组织扭曲。可以对缝合针通过其弧形行进的距离准确地设定程序以确保针穿过组织最长的行进距离,从而保护组织不受由前进得太远的缝合针钩9a产生的来自缝合针钩9a的压力引起的应力的影响。
在本发明的一些实施例中,径向驱动器使远端臂9、10沿由所述缝合针的弧形限定的弧形17行进,如图3所示。该弧形围绕所述设备的纵向中心居中,而本发明的另一些实施例将该弧形17的中心设置在所述设备纵向中心以外的特定位置。换言之,该弧形的中心可以偏离所述设备的中心。但该弧形17的中心和所述缝合针的尺寸仍然可以对所述远端臂9、10要行进的径向路径进行限定或设定参数。
要行进的弧形17由所述缝合针11的曲线限定,因为各缝合针具有穿过缝合组织的最佳路径或轨迹,其与所述针的弧形或形状直接相关。图4示出了本发明的设备的远端臂的纵向视图。最佳的,所述缝合针11的轨迹将沿与所述缝合针的弧形一致的弧形行进(至少对于具有一定弧形的缝合针,所述弧形表示圆的一部分并且针的弧形中的转动中心由圆的半径长度限定)。如果缝合针11沿所述弧形17移动,所述组织和所述针之间的交叉区域应当靠近弧形17和切向量之间的切点31,其中切向量与缝合针钩9a、10a的内表面相匹配,从而减小或最小化当缝合针刺穿或穿过所述组织时由缝合针产生的拉力或扭曲力。
所述设备和具有两个臂的现有技术之间的一个显著的区别在于所述设备的针夹住部分的构造。所述设备夹住所述针的曲线,所述设备在其特定的弧形牢固地保持针。现有技术的设备从一侧到另一侧而夹住针,该设备使针在最小的组织压力作用下从其弧形偏移。即使所述针沿其弧形被精确地驱动,组织的阻力将易于使针与持针器的钳夹相关联地移动,这将使针沿不同于所述针的弧形的其它路径前进,这样,这对于现有技术的设备是相当可能的(所述设备优于现有设备仅有一个优点)。
大多数缝合针由反映圆的弧形的曲线限定,并且缝合针的长度通常为3/8或1/2的圆周。但是,因为可以使用多种形状和尺寸的缝合针,本发明的半自动缝合设备可以调节构造以适合多种不同的针。可以使用横向驱动器和径向驱动器将远端臂9、10置于笛卡儿坐标系中的任何必要的位置,如图5和图6所示。换言之,可以使用横向驱动器将远端臂9、10置于由所使用的缝合针确定的沿所述弧形预定的位置上,同时径向驱动器同样可以将远端臂9、10置于沿所述弧形的任意点上。例如,在图6中,如果所述缝合针11的弧形是圆或大于180度,远端臂9、10可以被置于所述弧形上相互成180度角并与转动中心8等距离的位置上。或者,如果缝合针11自身的弧形小于180度,所述径向驱动器可以将远端臂9、10置于沿所述弧形小于180度间隔的位置上以使所述远端臂9、10与所述针配合。或者有利地,可以使用弧形略大于180度的缝合针,其中远端臂可以置于沿大于180度间隔的弧形的位置上。
本发明的半自动缝合设备还可以与具有与圆形不同的椭圆或非圆形状的缝合针一起使用。在这些情况时,远端臂9、10将通过径向驱动器和横向驱动器置于沿由缝合针11限定的椭圆弧形上。这时,在转动过程中所述径向驱动器和横向驱动器共同作用以连续调节两个远端臂9、10的笛卡儿坐标,从而使远端臂保持在椭圆弧形上。当缝合针11缝合组织时,因为缝合针11最小化对组织的横向或远端拉力及扭曲,因此期望将缝合针11经过模仿所述针(圆或椭圆)的弧形17穿过组织12。
在一些实施例中,缝合针钩转动以与针的弧形相匹配。换言之,当使用弧形大于或小于180度的针时,不仅移动远端臂配合针的弧形,而且还转动缝合针钩以配合所述针的弧形,如图6所示。例如,在本发明的一些实施例中,可不必考虑所述远端臂的径向位置,而对远端臂9、10远端的缝合针钩9a、10a径向地定位,这样可以独立地调节远端臂的x-y位置、远端臂的长度以及远端臂的转动。这种特性使缝合针钩9a、10a置于抓紧缝合针11的优化的位置,而不必考虑所使用的缝合针。图4显示了由各钳夹26的内表面限定的缝合针钩9a、10a的平分向量形成与由所述缝合针自身限定的弧形大致相切的线。在有些实施例中,切向量32和由所使用的缝合针11限定的弧形之间接触的切点31在缝合针钩9a、10a的中心。因此,缝合针钩9a、10a相对远端臂9、10的径向位置为使各钩以使由钩的内表面限定的切向量32与由缝合针限定的弧形在切点31交叉的方式定位。当缝合针11仅通过一个远端臂9、10抓紧时,切点31在缝合针钩9a、10a中心的定位增强了使缝合针11保持适当定位的能力。
然而,本发明的另一些实施例可以使切点31置于非缝合针钩9a、10a的中心的缝合针钩9a、10a中的位置。本领域的技术人员将认识到缝合针钩9a、10a(或在这方面的远端臂9、10)偏离上述位置的细微变化仍然会使所述设备良好地发挥作用,尤其是在考虑到许多组织具有足够的弹性适应缝合针的不当定位。换言之,缝合针11位置或轨迹的微小至中等的偏离不足以损害本发明的功能或实用性,并由此应该在本发明的范围内。
本发明的一些实施例提供的半自动缝合设备可以自动调节远端臂9、10和缝合针钩9a、10a以及基于要使用的特定缝合针而转动的弧形的位置。所述设备可以具有对应各种单个缝合针的多程序设定。例如,在一些实施例中,医生可以通过程序界面5对要使用的缝合针简单地输入产品号,或其它独特的标识,并且所述设备将基于存储的有关缝合针的信息自动采用恰当的构造,从而使所述设备沿恰当的弧形推进缝合针,刺穿组织并全部穿过其长度。这种程序设计可以包含在所述设备中并且可以具有直接输入识别缝合针数据的装置。另一些实施例设置有所述设备的外部程序,诸如通过程序界面5将设备连接至电脑或其它程序装置,从而将需要的构造传送至所述设备。在具有椭圆弧形的缝合针的情况时,可以使用程序界面5输入运行轨迹或座标设置以及缝合针钩的位置,这些对于使所述设备沿指定的弧形移动缝合针是需要的。
位于远端臂9、10的远端上的缝合针钩9a、10a可以是适于抓紧缝合针11的任何设计。本领域普通技术人员应当理解多种机构可以用于固定缝合针。因此,术语缝合针钩表示包括所有的这些机构。例如,如图7所示,缝合针钩9a、10a可以包括一对钳夹26,其与镊子或普通的持针器相似。所述钳夹可以附连至钩控制致动器21,其能够相对远端臂9、10的滑动部分20a进行纵向地操作。钩控制致动器21相对远端臂9、10的滑动部分20a向近端的移动可以使连接两个钳夹26的绞链28通过由远端臂9、10的滑动部分20a的内表面沿所述钳夹26的长度纵向施加在钳夹外表面上的机械力而闭合。在一些实施例中,为获得更多机械性优点所述设备可以包含单作用绞链或双作用绞链机构,或其它设计成能够确保抓紧缝合针的机构。在另一些实施例中,例如如图7所示,缝合针钩包括连接至钩控制致动器22的固定钳夹29和连接至钩控制致动器23的活动钳夹30。所述实施例使固定钳夹致动器22保持在一位置上,而具有角部分的活动钳夹30从所述设备的壳体1向远端移动,从而所述角通过在活动钳夹30和固定钳夹29之间扣住缝合针而抓住缝合针。而且,在有些实施例中,钳夹可以具有限定保持缝合针的位置的凹槽,以在钳夹和针之间提供优化的定向。这种凹槽可以形成符合要抓紧的缝合针的截面构造的形状,以进一步确保缝合针恰当的定向。
本发明的半自动缝合设备的一些实施例进一步能够使医生控制缝合过程的每个步骤。位于壳体上的一套控制器2-4(一个或多个控制器)可以被赋予多个相关的或独立的功能。例如,在一实施例中,在缝合的整个步骤中(其中单个步骤指任何特定的运动,如远端臂9、10的转动,远端臂9、10的伸出或缩回,或者缝合针钩9a、10a的接合或松开),控制器2可以向前移动所述设备,而另一控制器4在缝合的整个步骤中可以向后移动所述设备,第三控制器3可以提供紧急制动。在其它的实施例中,可以使两个或多个步骤相关联以在启动单一控制器时按顺序出现。例如,一次输入可以使远端臂9、10伸出,之后进行其缝合针钩9a、10a的接合。在另一些实施例中,所述设备可以具有控制器2-4,其作为可以在任意方向上被触发的紧急松开装置以选择性松开任一个钳夹,或按下该紧急松开装置以同时松开两个钳夹。所述设备的其它实施例提供用于控制给定远端臂的伸出和缩回、特定的缝合针钩的打开和闭合以及远端臂向前和向后的转动的单独的控制器2-4。本发明的其它实施例还可以提供比上述多或少的控制器,并且本领域的技术人员将易于认识到这些控制器的多种构造通过缝合过程的必要步骤就足以操作所述设备。
所述设备的电源可以是内部的,其包含在设备内并由电池或可充电的电源供电;或者电源可以是外部的,其连接至外部电源。
最后,在此公开的半自动缝合设备可以由医生的手持握而手动地使用,或所述设备可以安装在用于内窥镜手术的自动控制的长臂端部(其长臂由医生持握),或者由机器人控制长臂的位置而自动地使用。如果被自动地控制,缝合针的行进速度也可以由机器人控制而使组织的扭曲最小。
Claims (22)
1.一种用于缝合身体组织的半自动设备,包括:
壳体;
至少两个远端臂,所述远端臂连接至所述壳体并从所述壳体向远端伸出,其中,所述至少两个远端臂可独立伸出和缩回;
缝合针钩,所述缝合针钩连接至所述至少两个远端臂中的每个臂的远端,其中,所述缝合针钩可垂直于其所连接的远端臂的纵轴线沿径向转动;以及
至少一个控制器,所述控制器可操作以控制所述至少两个远端臂的伸出或缩回、所述缝合钩的转动以及所述缝合针钩的打开和闭合的至少一部分。
2.如权利要求1所述的半自动设备,进一步包括径向驱动器,所述径向驱动器使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
3.如权利要求2所述的半自动设备,其中,所述径向驱动器可以被所述至少一个控制器启动和停止。
4.如权利要求2所述的半自动设备,其中,所述径向驱动器是以预定的持续速率使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
5.如权利要求2所述的半自动设备,其中,所述径向驱动器是以可变速率使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
6.如权利要求1所述的半自动设备,进一步包括:
横向驱动器,所述横向驱动器从所述壳体向近端和远端伸出和缩回所述至少两个远端臂;以及
纵向驱动器,所述纵向驱动器从所述壳体的纵向中心向近端和远端移动所述至少两个远端臂,并关于所述至少两个远端臂的纵向中心转动所述至少两个远端臂。
7.如权利要求6所述的半自动设备,进一步包括:程序界面,其中,所述程序界面可以用于存储所述半自动设备中的设置,所述设置指导通过横向驱动器确定的所述至少两个远端臂的横向定位,以及通过纵向驱动器确定的缝合针钩的径向角度,以与预定缝合针的弧形相匹配。
8.如权利要求1所述的半自动设备,进一步包括:
横向驱动器,所述横向驱动器从所述壳体向近端和远端伸出和缩回所述至少两个远端臂;
纵向驱动器,所述纵向驱动器从所述壳体的纵向中心向近端和远端移动所述至少两个远端臂,并关于所述至少两个远端臂的纵向中心转动所述至少两个远端臂;以及
径向驱动器,所述径向驱动器使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
9.如权利要求8所述的半自动设备,进一步包括:程序界面,其中,所述程序界面可以用于存储所述半自动设备中的设置,所述设置指导通过横向驱动器确定的所述至少两个远端臂的横向定位,以及通过纵向驱动器确定的缝合针钩的径向角度,以与预定缝合针的弧形相匹配。
10.如权利要求9所述的半自动设备,其中,所述缝合针的弧形不是圆形的。
11.如权利要求9所述的半自动设备,其中,所述径向驱动器能够通过所述至少一个控制器被启动和停止。
12.如权利要求9所述的半自动设备,其中,所述径向驱动器是以预定的持续速率使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
13.如权利要求9所述的半自动设备,其中,所述径向驱动器是以可变速率使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
14.如权利要求9所述的半自动设备,其中,所述至少两个远端臂被安装在万向架上,所述万向架允许所述至少两个远端臂以可变角度偏离所述壳体的纵轴线。
15.如权利要求1所述的半自动设备,进一步包括:自动臂所用的附件。
16.一种采用半自动缝合设备缝合组织的方法,包括:
提供权利要求1的半自动设备,其中,所述权利要求1的半自动缝合设备具有两个远端臂,以及
使用所述至少一个控制器来指导:
通过连接至一个所述远端臂的所述可转动缝合针钩扣住缝合针;
另一所述远端臂向所述壳体缩回,接着在所述缝合针的远端穿过要被缝合组织之后另一所述远端臂伸出;
通过连接至目前伸出的所述另一远端臂的可转动的缝合针钩扣住缝合针;
使所述缝合针从所述第一远端臂的可转动缝合针钩上释放,以接合所述针,接着所述第一远端臂向所述壳体近端缩回。
17.如权利要求16所述的方法,其中,所述权利要求1的半自动设备进一步包括:
横向驱动器,所述横向驱动器从所述壳体向近端和远端伸出和缩回所述至少两个远端臂;
纵向驱动器,所述纵向驱动器从所述壳体的纵向中心向近端或远端移动所述至少两个远端臂,并关于所述至少两个远端臂的纵向中心转动所述至少两个远端臂;以及
径向驱动器,所述径向驱动器使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
18.如权利要求17所述的半自动设备,进一步包括:程序界面,其中,所述程序界面可以用于存储在所述半自动设备中的或者存储于程序设计设备中的设置,所述设置指导通过所述横向驱动器确定的所述至少两个远端臂的横向定位,以及通过纵向驱动器确定的缝合针钩的径向角度,以与预定的缝合针的弧形相匹配。
19.如权利要求18所述的半自动设备,其中,所述径向驱动器能够通过所述至少一个控制器被启动和停止。
20.如权利要求19所述的半自动设备,其中,所述径向驱动器是以预定的持续速率使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
21.如权利要求19所述的半自动设备,其中,所述径向驱动器是以可变速率使所述至少两个远端臂围绕所述壳体的纵轴线沿径向转动。
22.一种半自动缝合设备,包括:
壳体;
至少两个缝合钩臂,所述缝合钩臂从所述壳体向远端伸出,其中,所述至少两个缝合钩臂包括缝合钩机构;
用于控制所述钩机构相对于所述缝合钩臂的径向角度的装置;
用于控制从可缩回的主钩臂或可缩回的次钩臂的柄部独立向远端伸出或向所述柄部近端独立缩回的装置;
用于通过所述可缩回的主钩臂的钩机构或所述可缩回的次钩臂的钩机构独立地控制扣住缝合针的装置。
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- 2005-06-24 JP JP2007518215A patent/JP2008505666A/ja active Pending
- 2005-06-24 US US11/166,552 patent/US20060020272A1/en not_active Abandoned
- 2005-06-24 WO PCT/US2005/021986 patent/WO2006012128A2/en active Application Filing
- 2005-06-24 CN CNA2005800258578A patent/CN101083941A/zh active Pending
- 2005-06-24 MX MXPA06015146A patent/MXPA06015146A/es not_active Application Discontinuation
- 2005-06-24 AU AU2005267378A patent/AU2005267378A1/en not_active Abandoned
- 2005-06-24 CA CA002571872A patent/CA2571872A1/en not_active Abandoned
- 2005-06-24 KR KR1020077001584A patent/KR20070039065A/ko not_active Application Discontinuation
- 2005-06-24 EP EP05766741A patent/EP1768574A4/en active Pending
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CN102293672A (zh) * | 2005-09-14 | 2011-12-28 | 雷菲斯医药公司 | 缝合装置、系统及方法 |
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CN102293672B (zh) * | 2005-09-14 | 2016-08-03 | 雷菲斯医药公司 | 缝合装置、系统及方法 |
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CN107582119A (zh) * | 2017-10-19 | 2018-01-16 | 中国人民解放军第三军医大学第二附属医院 | 一种带导引装置的医用电动缝合器及导引方法 |
CN107582119B (zh) * | 2017-10-19 | 2023-08-18 | 中国人民解放军第三军医大学第二附属医院 | 一种带导引装置的医用电动缝合器及导引方法 |
CN108852509A (zh) * | 2018-05-18 | 2018-11-23 | 陈光鑫 | 一种新型手足显微外科医疗器械夹具 |
CN113768565A (zh) * | 2021-10-08 | 2021-12-10 | 巢湖市宾雄医疗器械有限公司 | 一种医用缝合针便携存放拿取装置及其存放方法 |
CN113768565B (zh) * | 2021-10-08 | 2023-04-25 | 巢湖市宾雄医疗器械有限公司 | 一种医用缝合针便携存放拿取装置及其存放方法 |
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AU2005267378A1 (en) | 2006-02-02 |
EP1768574A2 (en) | 2007-04-04 |
JP2008505666A (ja) | 2008-02-28 |
WO2006012128A3 (en) | 2007-07-12 |
RU2007102585A (ru) | 2008-07-27 |
EP1768574A4 (en) | 2011-02-23 |
MXPA06015146A (es) | 2007-10-23 |
US20060020272A1 (en) | 2006-01-26 |
KR20070039065A (ko) | 2007-04-11 |
CA2571872A1 (en) | 2006-02-02 |
WO2006012128A2 (en) | 2006-02-02 |
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