技术领域technical field
本实用新型属于医疗器械领域，涉及一种手术用器械，具体涉及一种手术吻合器。The utility model belongs to the field of medical instruments, and relates to a surgical instrument, in particular to a surgical stapler.
背景技术Background technique
吻合器是一种替代手工缝合的医疗器械，广泛应用于肠道等消化道生理组织的外科吻合手术，主要工作原理是利用切刀和吻合钉对组织进行离断和吻合。Stapler is a medical device that replaces manual suturing. It is widely used in surgical anastomosis of digestive tract physiological tissues such as intestines. The main working principle is to use cutters and staples to separate and anastomose tissues.
典型地，手术吻合器包括钉仓组件、砧座、闭合机构以及击发机构，其中钉仓组件包括收容了吻合钉和切刀的钉仓，其中，一般在切刀两侧设有至少一排吻合钉；所述的砧座包括砧座；闭合机构用于使钉仓和砧座可以相互接近，从而将容纳的组织夹持在钉仓与砧座之间；击发机构用于击发吻合钉和切刀，使两者从钉仓被推出且行进至砧座，从而实现夹持于钉仓和砧座之间的组织的切割和缝合。Typically, a surgical stapler includes a staple cartridge assembly, an anvil, a closing mechanism, and a firing mechanism, wherein the staple cartridge assembly includes a staple cartridge containing staples and a cutter, wherein generally at least one row of staples is arranged on both sides of the cutter. Nails; the anvil includes an anvil; the closing mechanism is used to make the staple bin and the anvil approach each other, thereby clamping the contained tissue between the staple bin and the anvil; the firing mechanism is used for firing the staples and cutting A knife, causing both to be pushed out from the staple cartridge and advanced to the anvil, thereby effecting the cutting and stapling of the tissue clamped between the staple cartridge and the anvil.
最为理想的情况是切刀被击发后从钉仓行进至砧座的过程中，切刀穿透组织并且彻底地离断全部的组织。然而，在实际的使用过程中，组织受到钉仓和砧座的挤压，容易被压扁而导致两端的组织发生溢出，切刀无法离断两端的溢出组织，从而造成组织无法完全切断的问题。The most ideal situation is that the cutter penetrates the tissue and completely cuts off all the tissues during the process of advancing from the staple cartridge to the anvil after the cutter is fired. However, in the actual use process, the tissue is squeezed by the staple cartridge and the anvil, and it is easy to be flattened, causing the tissue at both ends to overflow, and the cutter cannot separate the overflowing tissue at both ends, resulting in the problem that the tissue cannot be completely cut off .
发明内容Contents of the invention
本实用新型的目的在于提供一种手术吻合器，其包括器械本体、设置在所述本体近端的手柄部和设置在所述本体远端的钉头部，其中，所述钉头部包括钉仓组件、砧座和组织保持机构；所述钉仓组件包括钉仓和可移动地设置在所述钉仓内的切刀；所述砧座包括位于所述钉仓远端的钉砧和刀砧，所述刀砧上设有与所述切刀对应的切割垫圈；所述切刀可以被致动地从所述钉仓内伸出并行进至所述切割垫圈；所述钉仓相对于所述砧座可以在一个相间隔位置和一个相接近位置之间进行相对运动；所述组织保持机构包括可以将组织保持在所述切割垫圈的两端之间的第一延伸件和第二延伸件，所述第一延伸件设置在所述钉仓内，且可以被致动地从所述钉仓延伸至所述刀砧；所述第二延伸件固定设置在所述的刀砧上、且从所述刀砧向所述钉仓延伸；所述第二延伸件的与组织接触的内侧上设有一沿长度方向导引结构，在所述切刀从所述钉仓内伸出并行进至所述切割垫圈的过程中，所述切刀的一端部沿所述导引结构滑动至所述切割垫圈。The purpose of the present utility model is to provide a surgical stapler, which includes an instrument body, a handle portion disposed at the proximal end of the body, and a nail head disposed at the distal end of the body, wherein the nail head includes a nail A cartridge assembly, an anvil, and a tissue retention mechanism; the staple cartridge assembly includes a staple cartridge and a cutter movably disposed within the staple cartridge; the anvil includes an anvil and a knife positioned at the distal end of the staple cartridge An anvil, on which a cutting washer corresponding to the cutter is provided; the cutter can be actuated to protrude from the staple cartridge and travel to the cutting washer; the staple cartridge is relatively The anvil is relatively movable between a spaced position and an approximated position; the tissue retention mechanism includes first and second extensions capable of retaining tissue between ends of the cutting washer A member, the first extension member is disposed in the staple cartridge, and can be actuated to extend from the staple cartridge to the knife anvil; the second extension member is fixedly arranged on the knife anvil, and extend from the anvil to the staple cartridge; the inner side of the second extension member in contact with the tissue is provided with a guiding structure along the length direction, and when the cutting knife protrudes from the staple cartridge and travels During the process of cutting the washer, one end of the cutter slides to the cutting washer along the guiding structure.
在本实用新型的一个优选实施方案中，所述导引结构为一滑槽。In a preferred embodiment of the present utility model, the guiding structure is a sliding groove.
在本实用新型的一个更优选的实施方案中，所述第二延伸件的与组织接触的内侧呈现凸条状，且在该凸条内部形成所述滑槽。In a more preferred embodiment of the present utility model, the inner side of the second extension member in contact with the tissue is in the shape of a convex strip, and the slide groove is formed inside the convex strip.
在本实用新型的另一个优选实施方案中，所述第二延伸件与所述刀砧一体成型。In another preferred embodiment of the present utility model, the second extension piece is integrally formed with the anvil.
在本实用新型的一个优选实施方案中，所述第一延伸件为对准销。In a preferred embodiment of the present invention, the first extension member is an alignment pin.
本实用新型的手术吻合器在操作的过程中可以更好地实现完全离断组织。The surgical stapler of the utility model can better realize the complete separation of tissues during operation.
附图说明Description of drawings
图1为根据本实用新型实施例1的手术吻合器的立体图；1 is a perspective view of a surgical stapler according to Embodiment 1 of the present utility model;
图2为根据本实用新型实施例1的手术吻合器处于闭合状态的立体图；2 is a perspective view of the surgical stapler in a closed state according to Embodiment 1 of the utility model;
图3为根据本实用新型实施例1的手术吻合器的钉头部的分解图；Fig. 3 is an exploded view of the nail head of the surgical stapler according to Embodiment 1 of the present utility model;
图4为图3中所示的刀砧的立体图。FIG. 4 is a perspective view of the anvil shown in FIG. 3 .
具体实施方式detailed description
以下将结合附图所示的具体实施方式对本实用新型进行详细描述。但这些实施方式并不限制本实用新型，本领域的普通技术人员根据这些实施方式所做出的结构、方法、或功能上的变换均包含在本实用新型的保护范围内。The utility model will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and the structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present utility model.
本实用新型内所描述的表达位置与方向的词，均是以器械操作者作为参照，靠近操作者的一端为近端，远离操作者的一端为远端。轴向是指近端到远端的长度方向。The words expressing position and direction described in the utility model all refer to the operator of the instrument, the end close to the operator is the proximal end, and the end far away from the operator is the distal end. Axial refers to the length direction from the proximal end to the distal end.
本实施方式中所提到的“第一”、“第二”等并不包含位置关系或结构功能上的绝对区分关系，并且，在不同的实施方式中，可能使用相同的标记或者标号，这也并不代表结构或者功能上的联系，而仅仅是为了描述的方便。The "first", "second", etc. mentioned in this embodiment do not include positional relationships or absolute distinctions between structures and functions, and, in different embodiments, the same signs or symbols may be used, which means Nor does it represent a structural or functional relationship, but is merely for convenience of description.
实施例1Example 1
参见图1至图2，示出了本实用新型实施例1的手术吻合器，其包括：器械本体100、设置在本体100近端的手柄部200和设置在本体100近端的钉头部300。Referring to FIGS. 1 to 2 , the surgical stapler according to Embodiment 1 of the present invention is shown, which includes: an instrument body 100 , a handle portion 200 disposed at the proximal end of the body 100 and a nail head 300 disposed at the proximal end of the body 100 .
器械本体100包括具有远端和近端的支架101。手柄部200包括由外科医生用手握持的握持件201等。The instrument body 100 includes a bracket 101 having a distal end and a proximal end. The handle portion 200 includes a grip 201 and the like to be held by the surgeon's hand.
钉头部300包括钉仓组件1、砧座2和组织保持机构(未标号)。The staple head 300 includes a staple cartridge assembly 1, an anvil 2 and a tissue retention mechanism (not numbered).
优选的，在本实施例中，钉头部300是弯曲的，手术吻合器为弯曲型吻合器，参见图1至图3，钉头部300包括用于支撑和安装钉仓组件1和砧座2的U形支撑结构3。钉头部300可以被设计成具有可更换钉仓组件1的多次击发装置，也可以被设计成单次击发装置。Preferably, in this embodiment, the nail head 300 is curved, and the surgical stapler is a curved stapler. Referring to FIGS. 1 to 3, the nail head 300 includes a 2 U-shaped support structure 3 . The nail head 300 can be designed as a multi-firing device with a replaceable nail cartridge assembly 1, or as a single-firing device.
钉仓组件1相对于砧座2可以在一个相间隔位置和一个相接近位置之间进行相对运动。图1所示的手术吻合器处于开启状态，钉仓组件1相对于砧座2处于所述相间隔的位置以将组织置于钉仓组件1和砧座2之间。图2所示的手术吻合器处于闭合状态，钉仓组件1相对于砧座2处于所述相接近的位置以将两者之间的组织定位和夹紧。The staple cartridge assembly 1 can move relative to the anvil block 2 between a spaced position and a close position. The surgical stapler shown in FIG. 1 is in an open state, and the staple cartridge assembly 1 is in the spaced position relative to the anvil 2 to place tissue between the staple cartridge assembly 1 and the anvil 2 . The surgical stapler shown in FIG. 2 is in a closed state, and the staple cartridge assembly 1 is in the approaching position relative to the anvil 2 to position and clamp the tissue therebetween.
参见图3，钉仓组件1包括钉仓11和可移动地设置在钉仓11内的切刀12。砧座2包括设置在钉仓11远端的刀砧21和钉砧22，刀砧21上设有与切刀12对应的切割垫圈211。Referring to FIG. 3 , the staple cartridge assembly 1 includes a staple cartridge 11 and a cutter 12 movably disposed in the staple cartridge 11 . The anvil block 2 includes a knife anvil 21 and a nail anvil 22 arranged at the distal end of the staple cartridge 11 , and the knife anvil 21 is provided with a cutting washer 211 corresponding to the cutter 12 .
在本实施例中，参见图3，刀砧21位于钉砧22的远端，且与钉砧22可拆卸地固定连接。钉砧22上设有钉成型区域(图中未标注)且其上开设有通孔(通孔可以位于钉成型区域的中心)。因此，当钉砧22与刀砧21连接时，通孔暴露出切割垫圈211，由此，砧座2在朝向钉仓11的近端面上同时具有切割垫圈211和围绕在切割垫圈211周围的钉成型区域。In this embodiment, referring to FIG. 3 , the knife anvil 21 is located at the distal end of the nail anvil 22 and is detachably fixedly connected to the nail anvil 22 . A nail forming area (not marked in the figure) is provided on the nail anvil 22 and a through hole is opened thereon (the through hole may be located in the center of the nail forming area). Therefore, when the nail anvil 22 is connected with the anvil 21, the through hole exposes the cutting washer 211, thus, the anvil block 2 has the cutting washer 211 and the cutting washer 211 around the cutting washer 211 on the proximal surface facing the nail cartridge 11. Nail molding area.
切刀12可以被致动地从钉仓11内伸出并行进至切割垫圈211。具体的，在本实施例中，本体100和手柄部200被设计成具有使钉仓11和砧座2可以相互接近的闭合机构(图中未示出)和用于击发吻合钉和切刀12的击发机构(图中未示出)。如图1和图2所示，手柄部200包括从本体100可枢转地延伸出来的扳机202。在本实施例中，扳机202与闭合机构在致动上相关联，同时也与击发机构在致动上相关联。如图1所示，钉仓11处于开启位置从而将组织置于钉仓11和砧座2之间。当外科医生握压扳机202，扳机202朝握持件201移动，从而驱动闭合机构使得钉仓11朝向砧座2移动。如图2所示，钉仓11处于闭合位置，钉仓11远端的钉仓面与砧座2近端面相互接近从而将组织定位和保持。之后，当外科医生继续握压扳机202，击发机构将切刀12和吻合钉从钉仓11中推出，分别射击至砧座2的切割垫圈211和钉成型区域以切割和钉紧组织。Cutter 12 can be actuated to extend out of cartridge 11 and travel to cutting washer 211 . Specifically, in this embodiment, the body 100 and the handle portion 200 are designed to have a closing mechanism (not shown in the figure) that allows the staple cartridge 11 and the anvil 2 to approach each other and is used for firing the staples and the cutter 12. firing mechanism (not shown). As shown in FIGS. 1 and 2 , the handle portion 200 includes a trigger 202 pivotally extending from the body 100 . In the present embodiment, the trigger 202 is actuated in association with the closure mechanism and is also actuated in association with the firing mechanism. As shown in FIG. 1 , the staple cartridge 11 is in an open position to place tissue between the staple cartridge 11 and the anvil 2 . When the surgeon squeezes the trigger 202 , the trigger 202 moves toward the handle 201 , thereby driving the closing mechanism so that the staple cartridge 11 moves toward the anvil 2 . As shown in FIG. 2 , the staple cartridge 11 is in the closed position, and the staple cartridge surface at the distal end of the staple cartridge 11 and the proximal end surface of the anvil 2 approach each other so as to position and hold the tissue. Afterwards, when the surgeon continues to press the trigger 202, the firing mechanism pushes the cutter 12 and the staples out of the staple bin 11, and shoots to the cutting washer 211 and the staple forming area of the anvil 2 respectively to cut and staple the tissue.
在本实用新型的一个替代实施例中，手柄部200包括两个扳机(闭合扳机和击发扳机)，分别与闭合机构和击发机构在致动上相关联。In an alternative embodiment of the present invention, the handle portion 200 includes two triggers (a closing trigger and a firing trigger) actuatably associated with the closing mechanism and the firing mechanism, respectively.
参见图2和图3，组织保持机构包括可以将组织保持在切割垫圈211的两端之间的第一延伸件14和第二延伸件212。具体来说，当手术吻合器处于图2所示的闭合状态时，组织在厚度方向上被夹紧在钉仓11的远端钉仓面和砧座2的近端面之间，组织的两端受到第一延伸件14和第二延伸件212的约束和保持，从而将组织的两端保持在切割垫圈211的两端之间，使得组织不会因过度挤压而溢出到切割垫圈211之外，由此切刀12可以完全离断被约束在切割垫圈211两端之间的组织。Referring to FIGS. 2 and 3 , the tissue retaining mechanism includes a first extension 14 and a second extension 212 capable of retaining tissue between two ends of a cutting washer 211 . Specifically, when the surgical stapler is in the closed state shown in Figure 2, the tissue is clamped in the thickness direction between the distal nail cartridge surface of the staple cartridge 11 and the proximal surface of the anvil 2, the two sides of the tissue The end is constrained and held by the first extension 14 and the second extension 212, thereby holding the two ends of the tissue between the two ends of the cutting washer 211, so that the tissue will not overflow into the cutting washer 211 due to excessive extrusion. In addition, the cutting knife 12 can completely cut off the tissue constrained between the two ends of the cutting gasket 211 .
其中，参见图2和图3，第一延伸件14设置在钉仓11内，其可以被致动地伸缩，从而具有缩回钉仓11的缩回位置和从钉仓11伸出至砧座2的伸出位置。在本实施例中，第一延伸件14与上述的闭合机构在致动上相关联，扳机202驱动闭合机构使得钉仓11向砧座2移动至闭合位置时，第一延伸件14从钉仓11中伸出至砧座2。在本实用新型的一个替代实施例中，第一延伸件14也可以通过手动的方式被致动。Wherein, referring to FIGS. 2 and 3 , a first extension member 14 is disposed within the staple cartridge 11 and can be actuated to telescopically have a retracted position retracting the staple cartridge 11 and protruding from the staple cartridge 11 to the anvil. 2 in the extended position. In this embodiment, the first extension 14 is associated with the above-mentioned closing mechanism in terms of actuation, and the trigger 202 drives the closing mechanism so that when the staple cartridge 11 moves toward the anvil 2 to the closed position, the first extension 14 is released from the staple cartridge. Stretch out to anvil 2 in 11. In an alternative embodiment of the invention, the first extension 14 can also be actuated manually.
优选的，在本实施例中，第一延伸件14为对准销，当对准销14伸出至砧座2时，对准销14与砧座2配合实现位置对准。优选的，在本实施例中，该对准销14与砧座2上的、位于切割垫圈211的一端侧的位置配合实现对准。优选的，在本实施例中，该对准销14可以具有一尖的销头，砧座2上、位于切割垫圈211的一端侧可以设有一对应的槽/孔(图中未示出)，销头与该槽孔配合实现对准。该对准结构可以实现钉仓11与砧座2的位置对准，具体的，一方面可以实现钉仓11远端的钉仓面与钉砧22上的钉成型区域对准，更重要的一方面，更好地实现切刀12与切割垫圈211的位置对准。Preferably, in this embodiment, the first extension piece 14 is an alignment pin. When the alignment pin 14 extends to the anvil 2 , the alignment pin 14 cooperates with the anvil 2 to achieve position alignment. Preferably, in this embodiment, the alignment pin 14 cooperates with a position on the anvil 2 at one end side of the cutting washer 211 to achieve alignment. Preferably, in this embodiment, the alignment pin 14 may have a pointed pin head, and a corresponding groove/hole (not shown in the figure) may be provided on the anvil 2 at one end side of the cutting washer 211, The pin head cooperates with the slot to achieve alignment. This alignment structure can realize the position alignment of the staple cartridge 11 and the anvil 2. Specifically, on the one hand, it can realize the alignment of the staple cartridge surface at the far end of the staple cartridge 11 with the nail forming area on the staple anvil 22, and more importantly, On the one hand, the positional alignment of the cutter 12 and the cutting washer 211 is better realized.
参见图3和图4，第二延伸件212固定设置在刀砧21上、且从刀砧21向钉仓11延伸；第二延伸件212的与组织接触的内侧上设有一沿长度方向导引结构212C，在切刀12从钉仓11内伸出并行进至切割垫圈211的过程中，切刀12的一端部沿导引结构212C滑动至切割垫圈211。3 and 4, the second extension member 212 is fixedly arranged on the anvil 21 and extends from the anvil 21 to the staple cartridge 11; the inner side of the second extension member 212 in contact with the tissue is provided with a guide along the length direction Structure 212C, when the cutting knife 12 protrudes from the staple cartridge 11 and travels to the cutting washer 211 , one end of the cutting knife 12 slides to the cutting washer 211 along the guiding structure 212C.
优选的，在本实施例中，参见图4，导引结构212C为一滑槽。该滑槽212C的远端形成于切割垫圈211的另一端，从而切刀12沿该滑槽212C滑动至切割垫圈211上，更好地实现切刀12与切割垫圈211的位置对准，以完全地切断组织。Preferably, in this embodiment, referring to FIG. 4 , the guiding structure 212C is a sliding groove. The far end of the chute 212C is formed on the other end of the cutting washer 211, so that the cutting knife 12 slides onto the cutting washer 211 along the chute 212C, so that the position alignment of the cutting knife 12 and the cutting washer 211 is better realized to completely cut off the tissue.
优选的，在本实施例中，参见图4，第二延伸件212与刀砧21一体地成型。Preferably, in this embodiment, referring to FIG. 4 , the second extension 212 is formed integrally with the anvil 21 .
优选的，本实施例中，参见图4，第二延伸件212与组织接触的内侧呈现凸条状，该凸条内部形成滑槽212C。在凸条对组织进行约束和阻挡的同时，切刀12的一端部在凸条内部的滑槽212C内滑动，采用这样的结构，切刀在行进的过程中，切刀端部的刀刃可以覆盖凸条所阻挡的组织，从而完全离断组织，防止出现组织粘连(未完全切断)的情况。Preferably, in this embodiment, referring to FIG. 4 , the inner side of the second extension member 212 in contact with the tissue is in the shape of a convex strip, and a slide groove 212C is formed inside the convex strip. While the convex strip constrains and blocks the tissue, one end of the cutter 12 slides in the chute 212C inside the convex strip. With this structure, the blade at the end of the cutter can cover the The tissue blocked by the raised strip can completely separate the tissue and prevent the tissue from sticking (not completely cut off).
应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the implementation manners can also be properly combined to form other implementation manners understandable by those skilled in the art.
上文所列出的一系列的详细说明仅仅是针对本实用新型的可行性实施方式的具体说明，它们并非用以限制本实用新型的保护范围，凡未脱离本实用新型技艺精神所作的等效实施方式或变更均应包含在本实用新型的保护范围之内。The series of detailed descriptions listed above are only specific descriptions for the feasible implementation modes of the present utility model, and they are not used to limit the protection scope of the present utility model. Embodiments or modifications should be included within the protection scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137103.9UCN205268220U (en) | 2015-12-31 | 2015-12-31 | Operation anastomat |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137103.9UCN205268220U (en) | 2015-12-31 | 2015-12-31 | Operation anastomat |
| Publication Number | Publication Date |
|---|---|
| CN205268220Utrue CN205268220U (en) | 2016-06-01 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521137103.9UExpired - Fee RelatedCN205268220U (en) | 2015-12-31 | 2015-12-31 | Operation anastomat |
| Country | Link |
|---|---|
| CN (1) | CN205268220U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114278A1 (en)* | 2015-12-31 | 2017-07-06 | 苏州天臣国际医疗科技有限公司 | Pin head, and operation anastomat comprising pin head |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114278A1 (en)* | 2015-12-31 | 2017-07-06 | 苏州天臣国际医疗科技有限公司 | Pin head, and operation anastomat comprising pin head |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address | Address after:215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after:Tianchen International Medical Technology Co.,Ltd. Address before:215021, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 21A Patentee before:TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. | |
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20160601 |