技术领域Technical field
本发明涉及医疗器械技术领域，具体涉及一种摆头机构及医用吻合器。The invention relates to the technical field of medical devices, and in particular to a head-swinging mechanism and a medical stapler.
背景技术Background technique
现有技术中，医用吻合器包括吻合器本体、活动连接所述吻合器本体的击发把手以及与所述本体配合的钉砧组件。所述吻合器本体包括击发组件和设于远端侧的钉仓组件。在手术过程中，将两段需要吻合起来的组织放置在钉砧组件的钉砧和钉仓组件的钉仓之间，调整钉砧和钉仓的距离来逐渐夹紧组织，然后通过击发把手驱动击发组件使得吻合钉在钉砧成型，完成两段组织的吻合连接。In the prior art, a medical stapler includes a stapler body, a firing handle movably connected to the stapler body, and an anvil assembly that cooperates with the stapler body. The stapler body includes a firing component and a staple cartridge component located on the distal side. During the operation, the two pieces of tissue that need to be anastomosed are placed between the nail anvil of the nail anvil assembly and the nail cartridge of the nail cartridge assembly. The distance between the nail anvil and the nail cartridge is adjusted to gradually clamp the tissue, and then driven by the firing handle. The firing assembly causes the anastomotic nail to be formed on the nail anvil to complete the anastomotic connection of the two sections of tissue.
为了适应更多手术场景的需要，需要钉头部可以相对于吻合器本体有更多的角度选择。因此，可以在吻合器本体和钉头部之间设置摆头机构，所述摆头机构包括摆头拉片，摆头拉片的远端连接至钉头部，当驱动摆头拉杆沿吻合器的轴向移动时，摆头拉杆的远端侧带动钉头部相对于吻合器本体顺时针或逆时针摆动。In order to adapt to the needs of more surgical scenarios, the nail head needs to have more angle options relative to the stapler body. Therefore, a swing head mechanism can be provided between the stapler body and the nail head. The swing head mechanism includes a swing head pull tab. The distal end of the swing head pull tab is connected to the nail head. When the swing head pull rod is driven along the stapler When moving axially, the distal side of the swing head pull rod drives the nail head to swing clockwise or counterclockwise relative to the stapler body.
现有的摆头机构结构一般比较复杂，并且在摆头摆动时，难以设置摆动的角度，在使用过程中，钉头部还可能会出现不可控的摆动现象，从而造成钉头部摆动角度的不可控，导致吻合器的钉头部无法准确地定位，影响手术效果。The structure of the existing swing head mechanism is generally complex, and it is difficult to set the swing angle when the swing head swings. During use, the nail head may swing uncontrollably, resulting in a change in the swing angle of the nail head. It is uncontrollable, causing the nail head of the stapler to be unable to be positioned accurately, affecting the surgical effect.
在本发明中，远端侧和近端侧是相对于操作者来说的，距离操作者较近的一端为近端侧，距离操作者较远的一端，即更靠近手术位置的一端为远端侧。在吻合器中，内侧与外侧是相对于吻合器的轴心来说的，靠近轴心的一侧为内侧，远离轴心的一侧为外侧。In the present invention, the distal side and the proximal side are relative to the operator. The end closer to the operator is the proximal side, and the end farther from the operator, that is, the end closer to the surgical site is the distal side. end side. In the stapler, the inner side and the outer side are relative to the axis of the stapler. The side close to the axis is the inner side, and the side far from the axis is the outer side.
发明内容Contents of the invention
针对现有技术中的问题，本发明的目的在于提供一种摆头机构及医用吻合器，可以简单方便地实现吻合器的钉头部相对于吻合器本体的摆动，并且可以通过齿轮配合调整钉头部的摆动角度。In view of the problems in the prior art, the purpose of the present invention is to provide a head-swinging mechanism and a medical stapler that can simply and conveniently realize the swing of the nail head of the stapler relative to the stapler body, and can adjust the nail through gear matching. The swing angle of the head.
本发明实施例提供一种摆头机构，包括：An embodiment of the present invention provides a head swing mechanism, which includes:
主动轮，包括主动轮齿部；Driving wheel, including driving wheel teeth;
从动轮，包括第一从动轮齿部和第二从动轮齿部，所述第一从动轮齿部与所述主动轮齿部相啮合；The driven gear includes a first driven gear tooth portion and a second driven gear tooth portion, the first driven gear tooth portion meshes with the driving gear tooth portion;
拉片驱动件，包括拉片配合部和沿所述吻合器的轴向延伸的齿条部，所述齿条部与所述第二从动轮齿部相啮合，以使得所述从动轮旋转时，所述第二从动轮齿部通过所述齿条部带动所述拉片驱动件沿所述轴向运动；A pull tab driving member includes a pull tab fitting portion and a rack portion extending along the axial direction of the stapler. The rack portion meshes with the tooth portion of the second driven wheel, so that when the driven wheel rotates, , the second driven gear tooth portion drives the pull tab driving member to move along the axial direction through the rack portion;
摆头拉片，沿所述轴向延伸且固定于所述拉片配合部。The swing-head pull tab extends along the axial direction and is fixed to the pull tab fitting portion.
在一些实施例中，所述第一从动轮齿部和所述第二从动轮齿部同轴设置。In some embodiments, the first driven gear tooth portion and the second driven gear tooth portion are coaxially disposed.
在一些实施例中，所述第一从动轮齿部与所述第二从动轮齿部同步运动。In some embodiments, the first driven gear tooth portion and the second driven gear tooth portion move synchronously.
在一些实施例中，所述主动轮还包括本体部和旋钮，所述本体部包括远离所述从动轮的第一侧和朝向所述从动轮的第二侧，所述旋钮和所述主动轮齿部分别设置于所述本体部的第一侧和第二侧，所述主动轮与所述旋钮的旋转中心同轴。In some embodiments, the driving wheel further includes a body portion and a knob. The body portion includes a first side away from the driven wheel and a second side facing the driven wheel. The knob and the driving wheel The tooth parts are respectively arranged on the first side and the second side of the body part, and the driving wheel is coaxial with the rotation center of the knob.
在一些实施例中，包括两个所述从动轮、两个所述拉片驱动件及两个所述摆头拉片；两个所述摆头拉片沿轴向对称设置，各个所述从动轮及各个所述拉片驱动件分别与一个所述拉片配合。In some embodiments, it includes two driven wheels, two pull tab driving parts and two swing head pull tabs; the two swing head pull tabs are arranged symmetrically along the axial direction, and each of the slave pull tabs is The moving wheel and each pull tab driving member cooperate with one pull tab respectively.
在一些实施例中，两个所述从动轮及两个所述拉片驱动件分别位于所述吻合器的轴心的两侧，且轴对称设置。In some embodiments, the two driven wheels and the two pull tab driving members are respectively located on both sides of the axis of the stapler, and are arranged axially symmetrically.
在一些实施例中，两个所述从动轮及两个所述拉片驱动件分别位于所述吻合器的轴心的两侧，且非轴对称设置。In some embodiments, the two driven wheels and the two pull tab driving members are respectively located on both sides of the axis of the stapler, and are arranged non-axially symmetrically.
在一些实施例中，所述拉片驱动件包括朝向所述摆头拉片的第一侧和远离所述摆头拉片的第二侧，所述拉片配合部和所述齿条部分别设置于所述拉片驱动件的第一侧和第二侧。In some embodiments, the pull tab driving member includes a first side toward the swing head pull tab and a second side away from the swing head pull tab, and the pull tab fitting portion and the rack portion are respectively Disposed on the first side and the second side of the pull tab driving member.
在一些实施例中，还包括支撑件和壳体，所述壳体包括第一内表面和第二内表面，所述第一内表面与所述第二内表面之间围设成容置腔体；In some embodiments, a support member and a housing are further included. The housing includes a first inner surface and a second inner surface, and a receiving cavity is defined between the first inner surface and the second inner surface. body;
所述支撑件固定设于所述容置腔体，所述支撑件包括朝向所述第一内表面的第三表面和朝向所述第二内表面的第四表面，所述主动轮和所述从动轮至少部分设于所述第四表面和所述壳体的第二内表面之间，所述拉片驱动件至少部分位于所述第三表面和所述壳体的第一内表面之间。The support member is fixedly provided in the accommodation cavity, the support member includes a third surface facing the first inner surface and a fourth surface facing the second inner surface, the driving wheel and the The driven wheel is at least partially disposed between the fourth surface and the second inner surface of the housing, and the pull tab driver is at least partially disposed between the third surface and the first inner surface of the housing. .
在一些实施例中，所述支撑件上设置有第一引导部，所述拉片驱动件设置有第二引导部，所述第一引导部和所述第二引导部中的一个为沿所述轴向延伸的第一引导槽，另一个为第一引导件，所述第一引导件嵌设于所述第一引导槽中，且所述第一引导件的轴向长度小于所述第一引导槽的轴向长度。In some embodiments, the support member is provided with a first guide part, the pull tab driving member is provided with a second guide part, and one of the first guide part and the second guide part is provided along the The other of the axially extending first guide grooves is a first guide member, the first guide member is embedded in the first guide groove, and the axial length of the first guide member is smaller than the first guide member. The axial length of a guide groove.
在一些实施例中，所述壳体的第一内表面设置有第三引导部，所述拉片驱动件设置有第四引导部，所述第三引导部和所述第四引导部中的一个为沿所述轴向延伸的第二引导槽，另一个为第二引导件，所述第二引导件嵌设于所述第二引导槽中，且所述第二引导件的轴向长度小于所述第二引导槽的轴向长度。In some embodiments, the first inner surface of the housing is provided with a third guide portion, the pull tab driver is provided with a fourth guide portion, and the third guide portion and the fourth guide portion are One is a second guide groove extending along the axial direction, and the other is a second guide member. The second guide member is embedded in the second guide groove, and the axial length of the second guide member is is less than the axial length of the second guide groove.
在一些实施例中，所述支撑件包括主动轮配合部，所述主动轮配合部与所述主动轮齿部的中心形成嵌设配合，使得所述主动轮齿部可绕所述主动轮配合部旋转。In some embodiments, the support member includes a driving wheel fitting portion, and the driving wheel fitting portion forms an embedded fit with the center of the driving wheel tooth portion, so that the driving wheel tooth portion can fit around the driving wheel. Partial rotation.
在一些实施例中，所述支撑件包括从动轮配合部，所述从动轮配合部设置有通孔，所述从动轮穿设于所述通孔中，以使得所述第一从动轮齿部至少部分位于所述支撑件的第四表面与所述壳体的第二内表面之间，所述第二从动轮齿部至少部分位于所述支撑件的第三表面与所述壳体的第一内表面之间。In some embodiments, the support member includes a driven wheel mating portion, the driven wheel mating portion is provided with a through hole, and the driven wheel is penetrated in the through hole, so that the first driven wheel tooth portion The second driven gear tooth portion is at least partially located between the fourth surface of the support member and the second inner surface of the housing. between an inner surface.
在一些实施例中，所述支撑件或所述壳体上设置有止位部，所述主动轮和/或所述从动轮设置有连续分布的多个止位配合部；In some embodiments, the support or the housing is provided with a stop portion, and the driving wheel and/or the driven wheel is provided with a plurality of continuously distributed stop fitting portions;
所述主动轮和/或所述从动轮不受外力时，所述止位部至少与一个所述止位配合部相啮合，所述主动轮和/或所述从动轮受外力驱动发生旋转时，所述止位部在所述止位配合部的作用下向远离所述止位配合部的方向运动，而不阻挡所述主动轮和/或所述从动轮的旋转。When the driving wheel and/or the driven wheel are not subject to external force, the stop portion meshes with at least one of the stop matching portions. When the driving wheel and/or the driven wheel are driven by external force to rotate, , the stop part moves in a direction away from the stop fitting part under the action of the stop fitting part without blocking the rotation of the driving wheel and/or the driven wheel.
在一些实施例中，所述止位配合部为所述主动轮齿部、所述第一从动轮齿部和所述第二从动轮齿部中的至少一个。In some embodiments, the stop fitting portion is at least one of the driving gear tooth portion, the first driven gear tooth portion, and the second driven gear tooth portion.
在一些实施例中，所述主动轮还包括本体部，所述本体部包括远离所述从动轮的第一侧和朝向所述从动轮的第二侧，所述主动轮齿部设置于所述本体部的第二侧，所述止位配合部与所述主动轮齿部分离设置，且所述止位配合部的表面为圆弧形齿面。In some embodiments, the driving wheel further includes a body portion, the body portion includes a first side away from the driven wheel and a second side facing the driven wheel, and the driving wheel tooth portion is disposed on the driven wheel. On the second side of the body part, the stop fitting part is provided separately from the driving gear tooth part, and the surface of the stop fitting part is an arc-shaped tooth surface.
在一些实施例中，所述止位部至少部分是弹性的，所述主动轮和/或所述从动轮受外力驱动发生旋转时，所述止位部在所述止位配合部的作用下向远离所述止位配合部的方向运动，且发生弹性变形。In some embodiments, the stop portion is at least partially elastic. When the driving wheel and/or the driven wheel are driven to rotate by an external force, the stop portion is under the action of the stop fitting portion. Moves in a direction away from the stop fitting portion and undergoes elastic deformation.
在一些实施例中，所述止位部的两侧分别设置有倾斜的引导面。In some embodiments, inclined guide surfaces are provided on both sides of the stop portion.
在一些实施例中，所述壳体的第一内表面设置有从动轮固定部，所述从动轮还包括转轴部，所述转轴部与所述从动轮固定部形成嵌设配合，以使得所述从动轮可绕所述从动轮固定部旋转。In some embodiments, the first inner surface of the housing is provided with a driven wheel fixing part, and the driven wheel further includes a rotating shaft part, and the rotating shaft part forms an embedded fit with the driven wheel fixing part, so that the driven wheel fixing part The driven wheel can rotate around the driven wheel fixing part.
本发明实施例还提供一种医用吻合器，包括上述的摆头机构。An embodiment of the present invention also provides a medical stapler, including the above-mentioned head swinging mechanism.
本发明所提供的摆头机构及医用吻合器具有如下优点：The head-swinging mechanism and medical stapler provided by the present invention have the following advantages:
本发明的摆头机构中通过主动轮驱动从动轮转动，通过从动轮与拉片驱动件的齿条部相配合，实现将旋转运动转换为轴向运动，进而通过拉片驱动件的拉片配合部带动摆头拉片沿轴向运动，从而可以简单方便地实现吻合器的钉头部相对于吻合器本体的摆动，并且可以通过主动轮和从动轮的齿轮配合以及从动轮与齿条部的齿面配合，可以灵活地调整钉头部的摆动方向和摆动角度。In the swing head mechanism of the present invention, the driving wheel drives the driven wheel to rotate, and the driven wheel cooperates with the rack portion of the pull-tab driving member to convert the rotational motion into axial motion, and then the pull-tab driving member cooperates with the pull-tab. The part drives the swing head pull tab to move in the axial direction, so that the nail head of the stapler can be easily and conveniently swung relative to the stapler body, and can be realized through the gear cooperation between the driving wheel and the driven wheel and the coupling between the driven wheel and the rack part. The tooth surface cooperates to flexibly adjust the swing direction and angle of the nail head.
附图说明Description of drawings
通过阅读参照以下附图对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显。Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of the non-limiting embodiments with reference to the following drawings.
图1是本发明一实施例的医用吻合器的结构示意图；Figure 1 is a schematic structural diagram of a medical stapler according to an embodiment of the present invention;
图2是本发明一实施例的钉头部摆头的示意图；Figure 2 is a schematic diagram of a nail head swinging head according to an embodiment of the present invention;
图3是本发明一实施例的摆头机构的结构示意图；Figure 3 is a schematic structural diagram of a head swing mechanism according to an embodiment of the present invention;
图4是本发明一实施例的主动轮的结构示意图；Figure 4 is a schematic structural diagram of the driving wheel according to an embodiment of the present invention;
图5是本发明一实施例的主动轮、从动轮和拉片驱动件配合的结构示意图；Figure 5 is a schematic structural diagram of the cooperation between the driving wheel, the driven wheel and the pull tab driving member according to an embodiment of the present invention;
图6是本发明一实施例的主动轮、从动轮和拉片驱动件配合的仰视图；Figure 6 is a bottom view of the cooperation between the driving wheel, the driven wheel and the pull tab driving member according to an embodiment of the present invention;
图7是本发明一实施例的去除第二壳体和主动轮后的摆头机构的结构示意图；Figure 7 is a schematic structural diagram of the swing head mechanism after removing the second housing and the driving wheel according to an embodiment of the present invention;
图8是本发明一实施例的去除壳体和主动轮后的摆头机构的结构示意图；Figure 8 is a schematic structural diagram of the swing head mechanism after removing the housing and the driving wheel according to an embodiment of the present invention;
图9是本发明一实施例的从动轮和拉片驱动件配合的示意图；Figure 9 is a schematic diagram of the cooperation between the driven wheel and the pull tab driving member according to an embodiment of the present invention;
图10是本发明一实施例的拉片驱动件和摆头拉片配合的示意图；Figure 10 is a schematic diagram of the cooperation between the pull tab driver and the swing head pull tab according to an embodiment of the present invention;
图11是本发明一实施例的拉片驱动件的结构示意图；Figure 11 is a schematic structural diagram of a pull tab driver according to an embodiment of the present invention;
图12是本发明一实施例的第一壳体的结构示意图；Figure 12 is a schematic structural diagram of the first housing according to an embodiment of the present invention;
图13是本发明一实施例的支撑件的结构示意图；Figure 13 is a schematic structural diagram of a support member according to an embodiment of the present invention;
图14是本发明一实施例的支撑架和主动轮配合的示意图。Figure 14 is a schematic diagram of the cooperation between the support frame and the driving wheel according to an embodiment of the present invention.
附图标记：Reference signs:
11 吻合器本体 6 拉片驱动件11 Stapler body 6 Pull tab driver
111 套管 61 齿条部111 Bushing 61 Rack part
112 固定把手 62 拉片配合部112 Fixed handle 62 Pull tab fitting part
12 击发把手 63 第一引导件12 Firing handle 63 First guide
20 套管通道 64 第二引导件20 Casing channel 64 Second guide
2 第二壳体(上壳体) 7 支撑件2 Second housing (upper housing) 7 Support member
3 第一壳体(下壳体) 71 主动轮配合部3 First housing (lower housing) 71 Driving wheel matching part
31 支撑件固定槽 72 从动轮支撑部31 Support fixing groove 72 Driven wheel support part
32 第二引导槽 721 通孔32 Second guide groove 721 Through hole
33 从动轮固定槽 73 止位部33 Driven wheel fixing groove 73 Stop part
4 主动轮 731 第一引导面4 Driving wheel 731 first guide surface
41 旋钮 732 第二引导面41 Knob 732 Second guide surface
42 主动轮齿部 74 固定柱42 Driving gear teeth 74 Fixed column
43 止位配合部 75 第一引导槽43 Stop fitting part 75 First guide groove
44 本体部 8 摆头拉片44 Body part 8 Swing pull tab
5 从动轮 9 钉头部5 driven wheel 9 nail head
51 第一从动轮齿部 91 钉砧51 First driven gear tooth 91 Nail anvil
52 第二从动轮齿部 92 钉仓组件52 Second driven gear tooth 92 Nail cartridge assembly
53 转轴部 93 连接件53 Shaft part 93 Connector
具体实施方式Detailed ways
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本发明将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。在图中相同的附图标记表示相同或类似的结构，因而将省略对它们的重复描述。说明书中的“或”、“或者”均可能表示“和”或者“或”。虽然本说明书中可使用术语“上”、“下”、“之间”等来描述本发明的不同示例性特征和元件，但是这些术语用于本文中仅出于方便，例如根据附图中所述的示例的方向。在不同的实施例中，“上”和“下”的相对位置关系可以进行互换。本说明书中的任何内容都不应理解为需要结构的特定三维方向才落入本发明的范围内。本说明书中虽然采用“第一”或“第二”等来表示某些特征，但其仅为表示作用，而作为具体特征的数量和重要性的限制。Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concepts of the example embodiments. To those skilled in the art. The same reference numerals in the drawings represent the same or similar structures, and thus their repeated description will be omitted. The words “or” and “or” in the description may mean “and” or “or”. Although the terms "upper," "lower," "between," etc. may be used in this specification to describe various exemplary features and elements of the invention, these terms are used herein for convenience only, such as in the drawings. direction of the example described. In different embodiments, the relative positional relationships of "upper" and "lower" can be interchanged. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of a structure to fall within the scope of the invention. Although "first" or "second" are used in this specification to refer to certain features, they are only used for expression purposes and serve as limitations on the number and importance of specific features.
本发明提供了一种摆头机构和包括该摆头机构的医用吻合器，所述医用吻合器包括钉头部、吻合器本体和设置于所述钉头部和所述吻合器本体之间的摆头机构。所述摆头机构包括主动轮、从动轮、拉片驱动件和摆头拉片。所述主动轮包括主动轮齿部。所述从动轮包括第一从动轮齿部和第二从动轮齿部，所述第一从动轮齿部与所述主动轮齿部相啮合。因此，在操作者控制主动轮旋转时，通过所述主动轮齿部和所述第一从动轮齿部的齿轮啮合，可以驱动所述从动轮旋转。同样地，如果直接控制从动轮旋转，也可以通过所述第一从动轮齿部和所述主动轮齿部的齿轮啮合，驱动所述主动轮旋转。The invention provides a head-swinging mechanism and a medical stapler including the head-swinging mechanism. The medical stapler includes a nail head, a stapler body and a stapler disposed between the nail head and the stapler body. Swinging head mechanism. The swing head mechanism includes a driving wheel, a driven wheel, a pull tab driving part and a swing head pull tab. The driving wheel includes driving wheel teeth. The driven gear includes a first driven gear tooth portion and a second driven gear tooth portion, and the first driven gear tooth portion meshes with the driving gear tooth portion. Therefore, when the operator controls the rotation of the driving wheel, the driven wheel can be driven to rotate through the gear meshing of the driving gear tooth portion and the first driven gear tooth portion. Similarly, if the driven wheel is directly controlled to rotate, the driving wheel can also be driven to rotate through the gear meshing of the first driven gear tooth portion and the driving wheel tooth portion.
所述拉片驱动件包括拉片配合部和沿所述吻合器的轴向延伸的齿条部，所述齿条部与所述第二从动轮齿部相啮合。所述摆头拉片沿所述轴向延伸且固定于所述拉片配合部。所述拉片驱动件将所述从动轮的旋转运动转化为轴向运动。所述从动轮旋转时，所述第二从动轮齿部通过所述齿条部带动所述拉片驱动件沿所述吻合器的轴向运动，从而可以简单方便地实现吻合器的钉头部相对于吻合器本体的摆动。同时，本发明通过主动轮和从动轮的齿轮配合以及从动轮与齿条部的齿面配合，可以灵活地调整钉头部的摆动方向和摆动角度。The pull tab driving member includes a pull tab fitting portion and a rack portion extending along the axial direction of the stapler, and the rack portion is meshed with the second driven gear tooth portion. The swing head pull tab extends along the axial direction and is fixed to the pull tab fitting portion. The pull tab driver converts the rotational motion of the driven wheel into axial motion. When the driven wheel rotates, the second driven wheel tooth portion drives the pull tab driving member to move along the axial direction of the stapler through the rack portion, so that the nail head of the stapler can be easily and conveniently realized. Oscillation relative to the stapler body. At the same time, the present invention can flexibly adjust the swing direction and angle of the nail head through the gear matching between the driving wheel and the driven wheel and the tooth surface matching between the driven wheel and the rack part.
在本发明中，从动轮指的是设置有与拉片驱动件配合的第二从动轮齿部的齿轮，主动轮指的是与从动轮啮合配合的齿轮，但并不特指必须所述主动轮驱动从动轮旋转。在不同的实施例中，可以是所述主动轮旋转而驱动所述从动轮旋转，也可以是所述从动轮旋转而驱动所述主动轮旋转。In the present invention, the driven wheel refers to the gear provided with the second driven gear teeth that cooperate with the pull tab driving member, and the driving wheel refers to the gear that meshes with the driven wheel, but does not specifically refer to the driving wheel. The wheel drives the driven wheel to rotate. In different embodiments, the driving wheel may rotate to drive the driven wheel to rotate, or the driven wheel may rotate to drive the driving wheel to rotate.
下面结合附图详细介绍本发明各个具体实施例的摆头机构的结构，可以理解的是，各个具体实施例不作为本发明的保护范围的限制。The structure of the swinging mechanism of each specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings. It can be understood that each specific embodiment does not limit the scope of protection of the present invention.
如图1～2所示，本发明提供了一种摆头机构和包括该摆头机构的医用吻合器，所述医用吻合器包括钉头部9、吻合器本体11、枢转地连接于所述吻合器本体11的击发把手12和设置于所述钉头部9和所述吻合器本体11之间的摆头机构。所述吻合器本体11包括本体壳体、固定把手112和套管111，所述套管111的远端侧连接于所述钉头部9。所述钉头部9包括相对设置的钉砧91和钉仓组件92以及位于所述钉砧91和钉仓组件92的近端侧的连接件93。所述摆头机构包括两个轴对称设置的摆头拉片8，所述摆头拉片8至少部分位于所述套管111的内部，图2中省去了套管111以示出所述摆头拉片8与钉头部9的配合。所述摆头拉片8的远端侧连接于所述连接件93。通过所述摆头拉片8的轴向运动可以控制所述钉头部9相对于吻合器的轴心S0进行横向摆动。具体地，在图2的视角中，位于上方的摆头拉片8向近端侧方向运动，位于下方的摆头拉片8向远端侧方向运动时，实现所述钉头部9沿R1方向摆动。位于上方的摆头拉片8向远端侧方向运动，位于下方的摆头拉片8向近端侧方向运动时，实现所述钉头部9沿R2方向摆动。As shown in Figures 1 to 2, the present invention provides a head-swinging mechanism and a medical stapler including the head-swinging mechanism. The medical stapler includes a nail head 9, a stapler body 11, and a stapler body 11. The firing handle 12 of the stapler body 11 and the swing head mechanism are arranged between the nail head 9 and the stapler body 11 . The stapler body 11 includes a body shell, a fixed handle 112 and a sleeve 111 . The distal end of the sleeve 111 is connected to the nail head 9 . The nail head 9 includes an oppositely arranged nail anvil 91 and a nail cartridge assembly 92 and a connecting piece 93 located on the proximal side of the nail anvil 91 and the nail cartridge assembly 92 . The swing head mechanism includes two swing head pull tabs 8 arranged axially symmetrically. The swing head pull tabs 8 are at least partially located inside the sleeve 111. The sleeve 111 is omitted in Figure 2 to illustrate the description. The cooperation of the swing head pull tab 8 and the nail head 9. The distal side of the swing pull tab 8 is connected to the connecting piece 93 . The axial movement of the swing head pull tab 8 can control the lateral swing of the nail head 9 relative to the axis S0 of the stapler. Specifically, in the perspective of FIG. 2 , when the swing-head pull tab 8 located above moves in the proximal direction, and the swing-head pull tab 8 located below moves in the distal direction, the nail head 9 is realized to move along R1 direction swing. When the swing-head pull tab 8 located above moves in the distal direction, and the swing-head pull tab 8 located below moves in the proximal direction, the nail head 9 swings in the R2 direction.
在本发明中，远端侧和近端侧是相对于操作者来说的，距离操作者较近的一端为近端侧，距离操作者较远的一端，即更靠近手术位置的一端为远端侧，沿所述吻合器的轴心的方向为轴向，即从吻合器的远端侧到近端侧的方向，或从吻合器的近端侧到远端侧的方向。例如，在图2的视角中，所述钉头部9的远端侧为左边一侧，近端侧为右边一侧。S1方向即为从吻合器的远端侧向近端侧的方向。定义S1方向或与S1方向相反的方向为吻合器的轴向。定义图1中的S2方向为吻合器的纵向，即高度方向。定义图2中S3方向为吻合器的横向，即宽度方向。对于在本发明中，对于一个部件来说，内侧和外侧是相对于吻合器的轴心来说的，靠近轴心的一侧为内侧，远离轴心的一侧为外侧。In the present invention, the distal side and the proximal side are relative to the operator. The end closer to the operator is the proximal side, and the end farther from the operator, that is, the end closer to the surgical site is the distal side. The end side refers to the direction along the axis of the stapler as the axial direction, that is, the direction from the distal side to the proximal side of the stapler, or the direction from the proximal side to the distal side of the stapler. For example, in the perspective of FIG. 2 , the distal side of the nail head 9 is the left side, and the proximal side is the right side. The S1 direction is the direction from the distal side to the proximal side of the stapler. Define the S1 direction or the direction opposite to the S1 direction as the axial direction of the stapler. The S2 direction in Figure 1 is defined as the longitudinal direction of the stapler, that is, the height direction. Define the S3 direction in Figure 2 as the transverse direction of the stapler, that is, the width direction. In the present invention, for a component, the inner side and the outer side are relative to the axis of the stapler. The side close to the axis is the inner side, and the side far from the axis is the outer side.
如图3～图7所示，所述摆头机构还包括壳体、主动轮4和从动轮5，所述主动轮4和所述从动轮5形成齿轮组。所述主动轮4和所述从动轮5被容纳于所述壳体的内部的容置腔体。所述拉片驱动件6也位于所述容置腔体之内。在图3的视角中，所述壳体包括位于下方的第一壳体3和位于上方的第二壳体2。所述第二壳体2和所述第一壳体3的内部共同限定一个容纳部分套管111的套管通道20。所述第一壳体3的内表面为所述壳体的第一内表面，所述第二壳体2的内表面为所述壳体的第二内表面。所述主动轮4包括旋钮41、本体部44和主动轮齿部42，所述本体部44包括远离所述从动轮5的第一侧和朝向所述从动轮5的第二侧，所述旋钮41设置于所述本体部44的第一侧，供操作者手持使用，所述主动轮齿部42设置于所述本体部44的第二侧，所述主动轮4和所述旋钮41的旋转中心同轴。所述主动轮齿部42的侧壁至少部分设置有第一齿面。所述从动轮5包括第一从动轮齿部52，所述第一从动轮齿部52的侧壁至少部分设置有第二齿面，所述第一齿面与所述第二齿面相啮合。因此，在操作者通过旋钮41控制主动轮4旋转时，通过所述第一齿面和所述第二齿面处的齿轮啮合，可以驱动所述从动轮5旋转。在另一实施例中，也可以是所述从动轮5包括一个旋钮，通过手动操作从动轮5驱动主动轮4旋转。如图5所示，在该实施例中，设置有两个所述从动轮5，两个所述从动轮5位于所述主动轮4的近端侧。对应地，设置有两个拉片驱动件6，两个摆头拉片沿轴向对称设置，各个从动轮5和各个拉片驱动件6分别与一个所述摆头拉片8配合。两个所述从动轮5分别位于所述吻合器的轴心的两侧，且轴对称对称设置，且两个所述从动轮5的轴心与所述主动轮4的轴心平行，两个所述从动轮5的轴心到所述主动轮4的轴心的距离相等。在该实施例中，所述第一从动轮齿部52的侧壁只有一部分设置有第二齿面，在另一实施方式中，也可以所述第一从动轮齿部52的侧壁整体均设置有第二齿面。或者，所述主动轮齿部42的侧壁只有部分设置有第一齿面。在另一实施方式中，两个从动轮5也可以不是轴对称设置的。例如，在图6的视图中，将上方的从动轮5设置在主动轮4的右上方，而将下方的从动轮5设置在主动轮4的左下方，或者，将上方的从动轮5设置在主动轮4的左上方，将下方的从动轮5设置在主动轮4的右下方等，均属于本发明的保护范围之内。As shown in Figures 3 to 7, the swing head mechanism also includes a housing, a driving wheel 4 and a driven wheel 5. The driving wheel 4 and the driven wheel 5 form a gear set. The driving wheel 4 and the driven wheel 5 are accommodated in an accommodation cavity inside the housing. The pull tab driving member 6 is also located in the accommodation cavity. In the perspective of FIG. 3 , the housing includes a first housing 3 located below and a second housing 2 located above. The interiors of the second housing 2 and the first housing 3 jointly define a casing channel 20 that accommodates a portion of the casing 111 . The inner surface of the first housing 3 is the first inner surface of the housing, and the inner surface of the second housing 2 is the second inner surface of the housing. The driving wheel 4 includes a knob 41, a body portion 44 and a driving wheel tooth portion 42. The body portion 44 includes a first side away from the driven wheel 5 and a second side facing the driven wheel 5. The knob 41 is provided on the first side of the body part 44 for the operator to hold. The driving wheel tooth part 42 is provided on the second side of the body part 44. The rotation of the driving wheel 4 and the knob 41 Center coaxial. The side wall of the driving gear tooth portion 42 is at least partially provided with a first tooth surface. The driven wheel 5 includes a first driven gear tooth portion 52 , a side wall of the first driven gear tooth portion 52 is at least partially provided with a second tooth surface, and the first tooth surface meshes with the second tooth surface. Therefore, when the operator controls the rotation of the driving wheel 4 through the knob 41, the driven wheel 5 can be driven to rotate through the gear meshing at the first tooth surface and the second tooth surface. In another embodiment, the driven wheel 5 may also include a knob, and the driven wheel 5 drives the driving wheel 4 to rotate by manually operating the driven wheel 5 . As shown in FIG. 5 , in this embodiment, two driven wheels 5 are provided, and the two driven wheels 5 are located on the proximal end side of the driving wheel 4 . Correspondingly, two pull tab driving parts 6 are provided, and the two swing head pull tabs are arranged symmetrically along the axial direction. Each driven wheel 5 and each pull tab driving part 6 cooperate with one of the swing head pull tabs 8 respectively. The two driven wheels 5 are respectively located on both sides of the axis of the stapler, and are arranged axially symmetrically, and the axes of the two driven wheels 5 are parallel to the axis of the driving wheel 4. The distance between the axis center of the driven wheel 5 and the axis center of the driving wheel 4 is equal. In this embodiment, only a part of the side wall of the first driven gear tooth portion 52 is provided with the second tooth surface. In another embodiment, the entire side wall of the first driven gear tooth portion 52 may be evenly spaced. A second tooth surface is provided. Alternatively, only part of the side wall of the driving gear tooth portion 42 is provided with the first tooth surface. In another embodiment, the two driven wheels 5 may not be arranged axially symmetrically. For example, in the view of FIG. 6 , the upper driven wheel 5 is arranged on the upper right side of the driving wheel 4 , and the lower driven wheel 5 is arranged on the lower left side of the driving wheel 4 , or the upper driven wheel 5 is arranged on the lower left side of the driving wheel 4 . The upper left side of the driving wheel 4, the lower driven wheel 5 being arranged on the lower right side of the driving wheel 4, etc., all fall within the protection scope of the present invention.
如图5～图9所示，所述摆头机构还包括拉片驱动件6。所述从动轮5还包括第二从动轮齿部52。在该实施例中，所述第一从动轮齿部51和第二从动轮齿部52同轴设置，由此，所述从动轮5的旋转中心是统一的，在摆头时更加稳定。所述第一从动轮齿部51和第二从动轮齿部52彼此固定设置，实现同步运动。在另一些实施方式中，所述第一从动轮齿部51和第二从动轮齿部52也可以是不同步转动的，例如在所述第一从动轮齿部51和第二从动轮齿部52之间另外增加传动齿轮/传动齿条等传动结构，或者将所述第一从动轮齿部51和第二从动轮齿部52采用其他方式组合在一起，或者从动轮的运动滞后于主动轮的运动。所述拉片驱动件6包括朝向所述摆头拉片8的第一侧和远离所述摆头拉片8的第二侧，所述拉片驱动件6的第一侧设置有所述拉片配合部62，所述拉片驱动件6的第二侧设置有齿条部61，该齿条部61沿所述吻合器的轴向延伸。通过所述第二从动轮齿部52与所述齿条部61的配合，可以将所述第二从动轮齿部52的旋转运动转化为所述齿条部61的轴向运动。在该实施例中，所述拉片配合部62为凸起部，所述摆头拉片8上设置有对应的孔或凹槽，实现所述拉片配合部62与所述摆头拉片8的固定连接。在另一实施方式中，也可以所述拉片配合部62为孔或凹槽，所述摆头拉片8上设置有与拉片配合部62相配合的凸起。因此，在操作者操作旋钮41旋转时，主动轮4的主动轮齿部42驱动从动轮5的第一从动轮齿部51旋转，第一从动轮齿部51带动第二从动轮齿部52旋转，进而带动所述齿条部61轴向运动，所述拉片驱动件6通过所述拉片配合部62带动所述摆头拉片8轴向运动，进而实现摆头效果。例如，在图6的视角中，操作者操作旋钮41旋转而使得主动轮4顺时针旋转时，两个从动轮5均逆时针旋转，上方的从动轮5带动上方的拉片驱动件6向近端侧方向运动，而下方的从动轮5带动下方的拉片驱动件6向远端侧方向运动，使得上方的摆头拉片8和下方的摆头拉片8(图6中未示出)分别向近端侧方向和远端侧方向运动，实现钉头部9向一侧摆动。同样地，操作者操作旋钮41旋转而使得主动轮4逆时针旋转时，两个从动轮5均顺时针旋转，上方的从动轮5带动上方的拉片驱动件6向远端侧方向运动，而下方的从动轮5带动下方的拉片驱动件6向近端侧方向运动，使得上方的摆头拉片8和下方的摆头拉片8(图6中未示出)分别向远端侧方向和近端侧方向运动，实现钉头部9向另一侧摆动。因此，该实施例中，可以简单方便地实现吻合器的钉头部9相对于吻合器本体的摆动。通过主动轮4和从动轮5的齿轮配合以及从动轮5与齿条部61的齿面配合，可以灵活地调整钉头部9的摆动方向和摆动角度。As shown in FIGS. 5 to 9 , the swing head mechanism also includes a pull tab driving member 6 . The driven wheel 5 also includes a second driven wheel tooth portion 52 . In this embodiment, the first driven gear tooth portion 51 and the second driven gear tooth portion 52 are coaxially arranged. Therefore, the rotation center of the driven wheel 5 is unified, making the head swing more stable. The first driven gear tooth portion 51 and the second driven gear tooth portion 52 are fixedly arranged with each other to achieve synchronous movement. In other embodiments, the first driven gear tooth portion 51 and the second driven gear tooth portion 52 may also rotate asynchronously. For example, the first driven gear tooth portion 51 and the second driven gear tooth portion 52 may rotate asynchronously. Additional transmission structures such as transmission gears/transmission racks are added between 52, or the first driven gear tooth portion 51 and the second driven gear tooth portion 52 are combined together in other ways, or the movement of the driven wheel lags behind the driving wheel. exercise. The pull tab driving member 6 includes a first side facing the swing head pull tab 8 and a second side away from the swing head pull tab 8. The first side of the pull tab driving member 6 is provided with the pull tab. The tab fitting portion 62 is provided with a rack portion 61 on the second side of the pull tab driver 6, and the rack portion 61 extends along the axial direction of the stapler. Through the cooperation between the second driven gear tooth portion 52 and the rack portion 61 , the rotational motion of the second driven gear tooth portion 52 can be converted into the axial movement of the rack portion 61 . In this embodiment, the pull-tab fitting portion 62 is a convex portion, and the swing-head pull tab 8 is provided with corresponding holes or grooves to realize the connection between the pull-tab fitting portion 62 and the swing-head pull tab. 8 fixed connections. In another embodiment, the pull tab fitting portion 62 can also be a hole or a groove, and the swing head pull tab 8 is provided with a protrusion that matches the pull tab fitting portion 62 . Therefore, when the operator operates the knob 41 to rotate, the driving gear tooth portion 42 of the driving wheel 4 drives the first driven gear tooth portion 51 of the driven wheel 5 to rotate, and the first driven gear tooth portion 51 drives the second driven gear tooth portion 52 to rotate. , thereby driving the rack portion 61 to move axially, and the pull tab driving member 6 drives the swing head pull tab 8 to move axially through the pull tab fitting portion 62, thereby achieving a swing head effect. For example, in the perspective of FIG. 6 , when the operator rotates the knob 41 to cause the driving wheel 4 to rotate clockwise, both driven wheels 5 rotate counterclockwise, and the upper driven wheel 5 drives the upper pull tab driving member 6 to move closer. The lower driven wheel 5 drives the lower pull tab driving member 6 to move in the distal direction, so that the upper swing head pull tab 8 and the lower swing head pull tab 8 (not shown in Figure 6) Move in the proximal direction and the distal direction respectively to realize the swing of the nail head 9 to one side. Similarly, when the operator rotates the knob 41 to cause the driving wheel 4 to rotate counterclockwise, both driven wheels 5 rotate clockwise, and the upper driven wheel 5 drives the upper pull tab driving member 6 to move toward the distal direction, and The driven wheel 5 below drives the pull tab driving member 6 below to move in the proximal direction, so that the swing head pull tab 8 above and the swing head pull tab 8 below (not shown in Figure 6) move toward the distal side respectively. and proximal side direction movement to realize the swing of the nail head 9 to the other side. Therefore, in this embodiment, the swing of the nail head 9 of the stapler relative to the stapler body can be easily and conveniently realized. Through the gear matching between the driving wheel 4 and the driven wheel 5 and the tooth surface matching between the driven wheel 5 and the rack portion 61, the swing direction and swing angle of the nail head 9 can be flexibly adjusted.
如图7～12所示，所述摆头机构还包括支撑件7，固定设于所述壳体的容置腔体，并且将所述齿轮组固定于所述壳体。所述支撑件7包括朝向所述第一内表面的第三表面和朝向所述第二内表面的第四表面，在图7和图8的视角中，所述支撑件7的第三表面为下表面，第四表面为上表面。所述主动轮4和所述从动轮5至少部分设于所述第四表面和所述壳体的第二内表面之间，所述拉片驱动件6至少部分位于所述第三表面和所述壳体的第一内表面之间。如图7所示，所述支撑件7包括主动轮配合部71，所述主动轮配合部71与所述主动轮齿部42的中心形成嵌设配合，使得所述主动轮齿部42可绕所述主动轮配合部71旋转。在该实施例中，所述主动轮配合部71为一个凸柱，其嵌入所述主动轮齿部42中心的孔中。在另一实施例中，也可以所述主动轮配合部71为一个凹槽或孔，将主动轮齿部42的中心轴嵌入到该凹槽或孔中。As shown in Figures 7 to 12, the swing head mechanism also includes a support member 7, which is fixedly provided in the accommodation cavity of the housing and fixes the gear set to the housing. The support member 7 includes a third surface facing the first inner surface and a fourth surface facing the second inner surface. In the perspective of FIGS. 7 and 8 , the third surface of the support member 7 is the lower surface, and the fourth surface is the upper surface. The driving wheel 4 and the driven wheel 5 are at least partially located between the fourth surface and the second inner surface of the housing, and the pull tab driving member 6 is at least partially located between the third surface and the second inner surface of the housing. between the first inner surface of the housing. As shown in FIG. 7 , the support member 7 includes a driving wheel fitting portion 71 , and the driving wheel fitting portion 71 forms an embedded fit with the center of the driving wheel tooth portion 42 , so that the driving wheel tooth portion 42 can be rotated around the center of the driving wheel tooth portion 42 . The driving wheel fitting portion 71 rotates. In this embodiment, the driving wheel fitting portion 71 is a convex column, which is embedded in the hole in the center of the driving wheel tooth portion 42 . In another embodiment, the driving wheel fitting portion 71 can also be a groove or a hole, and the central axis of the driving wheel tooth portion 42 is embedded in the groove or hole.
结合图7、图8和图13可以看出，所述支撑件7包括从动轮配合部72，所述从动轮配合部72设置有通孔721，所述从动轮5穿设于所述通孔721中，以使得所述第一从动轮齿部51至少部分位于所述支撑件7的第四表面与所述壳体的第二内表面之间，所述第二从动轮齿部52至少部分位于所述支撑件7的第三表面与所述壳体的第一内表面之间。结合图8和图12可以看出，所述支撑件7的第三表面设置有多个固定柱74，所述第一壳体3的第一内表面设置有对应的多个支撑件固定槽31，所述固定柱74嵌设于所述支撑件固定槽31中，实现所述支撑件7与所述第一壳体3的固定。在另一种实施方式中，也可以所述支撑件7设置有多个固定槽，所述第一壳体3的第一内表面设置有固定柱，将固定柱嵌设于固定槽中。或者，所述支撑件7设置有固定槽和固定柱，所述第一壳体3设置有对应的固定柱和固定槽。It can be seen from FIG. 7 , FIG. 8 and FIG. 13 that the support member 7 includes a driven wheel fitting part 72 , the driven wheel fitting part 72 is provided with a through hole 721 , and the driven wheel 5 is inserted through the through hole 721 . 721, so that the first driven gear tooth portion 51 is at least partially located between the fourth surface of the support member 7 and the second inner surface of the housing, and the second driven gear tooth portion 52 is at least partially located between Located between the third surface of the support member 7 and the first inner surface of the housing. It can be seen from Fig. 8 and Fig. 12 that the third surface of the support member 7 is provided with a plurality of fixing posts 74, and the first inner surface of the first housing 3 is provided with a plurality of corresponding support member fixing grooves 31. , the fixing column 74 is embedded in the support member fixing groove 31 to achieve the fixation of the support member 7 and the first housing 3 . In another embodiment, the support member 7 may be provided with a plurality of fixing grooves, the first inner surface of the first housing 3 is provided with fixing posts, and the fixing posts are embedded in the fixing grooves. Alternatively, the support member 7 is provided with fixing grooves and fixing posts, and the first housing 3 is provided with corresponding fixing posts and fixing grooves.
如图9和图12所示，在该实施例中，所述第一壳体3的第一内表面还设置有从动轮固定部，与所述从动轮5的转轴部53形成嵌设配合。在该实施例中，所述从动轮固定部为从动轮固定槽33，所述从动轮5的转轴部53嵌设于所述从动轮固定槽33中，且所述转轴部53可相对于所述第一壳体3旋转，从而保持摆头过程中所述从动轮5的稳定性。在另一实施方式中，也可以所述从动轮5的转轴部53设置有凹槽，所述第一壳体3的第一内表面设置有从动轮固定柱，嵌设于所述从动轮5的凹槽中。As shown in FIGS. 9 and 12 , in this embodiment, the first inner surface of the first housing 3 is also provided with a driven wheel fixing portion, which forms an embedded fit with the rotating shaft portion 53 of the driven wheel 5 . In this embodiment, the driven wheel fixing part is a driven wheel fixing groove 33, the rotating shaft part 53 of the driven wheel 5 is embedded in the driven wheel fixing groove 33, and the rotating shaft part 53 can be relative to the driven wheel fixing groove 33. The first housing 3 rotates to maintain the stability of the driven wheel 5 during the head swing. In another embodiment, the rotating shaft portion 53 of the driven wheel 5 can also be provided with a groove, and the first inner surface of the first housing 3 is provided with a driven wheel fixing post embedded in the driven wheel 5 in the groove.
如图11和图13所示，在该实施例中，所述支撑件7上设置有第一引导部，所述拉片驱动件6设置有第二引导部，所述第一引导部为沿轴向延伸的第一引导槽75，所述第二引导部为第一引导件63，所述第一引导件63嵌设于所述第一引导槽75中，且所述第一引导件63的轴向长度小于所述第一引导槽75的轴向长度。通过所述第一引导槽75进一步限定所述拉片驱动件6的轴向运动方向。在另一种实施方式中，也可以所述第一引导部为第一引导件63，所述第二引导部为沿轴向延伸的第一引导槽75。如图11和图12所示，在该实施例中，所述壳体的第一内表面设置有第三引导部，所述拉片驱动件6设置有第四引导部，所述第三引导部为第二引导槽32，所述第四引导部为第二引导件64，所述第二引导件64嵌设于所述第二引导槽32中，且所述第二引导件64的轴向长度小于所述第二引导槽的轴向长度，进一步对所述第一引导槽75的轴向运动方向进行限定。在另一种实施方式中，也可以所述第三引导部为第二引导件64，所述第四引导部为第二引导槽32。As shown in Figures 11 and 13, in this embodiment, the support member 7 is provided with a first guide portion, the pull tab driving member 6 is provided with a second guide portion, and the first guide portion is along the An axially extending first guide groove 75, the second guide part is a first guide part 63, the first guide part 63 is embedded in the first guide groove 75, and the first guide part 63 The axial length of is less than the axial length of the first guide groove 75 . The axial movement direction of the pull tab driver 6 is further defined by the first guide groove 75 . In another embodiment, the first guide part may be a first guide member 63, and the second guide part may be a first guide groove 75 extending in the axial direction. As shown in Figures 11 and 12, in this embodiment, the first inner surface of the housing is provided with a third guide portion, and the pull tab driver 6 is provided with a fourth guide portion. The third guide portion The second guide part 32 is the second guide groove 32 , the fourth guide part is the second guide part 64 , the second guide part 64 is embedded in the second guide groove 32 , and the shaft of the second guide part 64 The axial length is smaller than the axial length of the second guide groove, further defining the axial movement direction of the first guide groove 75 . In another embodiment, the third guide part may be the second guide part 64 and the fourth guide part may be the second guide groove 32 .
现有的吻合器中，在钉头部摆动到一定角度后，摆头机构的稳定性不足，可能会引起钉头部角度的不稳定，影响操作者使用。基于此，该实施例进一步提供了止位部和止位配合部，来保持钉头部摆动后的稳定性，提升手术效果。In the existing stapler, after the nail head swings to a certain angle, the stability of the swinging mechanism is insufficient, which may cause the angle of the nail head to be unstable and affect the operator's use. Based on this, this embodiment further provides a stop portion and a stop matching portion to maintain the stability of the nail head after swinging and improve the surgical effect.
具体地，如图13和图14所示，在该实施例中，所述支撑件7上设置有止位部73，所述主动轮4设置有止位配合部43。所述主动轮4和/或所述从动轮5不受外力时，所述止位部73与所述止位配合部43相啮合，避免所述主动轮4和/或所述从动轮5意外发生转动，而影响所述摆头机构的稳定性。在需要进行摆头时，操作者通过旋钮41给所述主动轮4和/或所述从动轮5施加外力驱动，而使得所述主动轮4和/或所述从动轮5发生旋转时，所述止位部73在所述止位配合部43的作用下向远离所述止位配合部43的方向运动，而不阻挡所述主动轮4和/或所述从动轮5的旋转。如图13所示，所述止位部73的两侧分别设置有倾斜的第一引导面731和倾斜的第二引导面732。在摆头操作时，止位部73更容易与止位配合部43脱离，而不阻挡齿轮组的旋转，避免操作者摆头操作时受到很大阻力。Specifically, as shown in FIGS. 13 and 14 , in this embodiment, the support member 7 is provided with a stop portion 73 , and the driving wheel 4 is provided with a stop fitting portion 43 . When the driving wheel 4 and/or the driven wheel 5 are not subject to external force, the stop portion 73 meshes with the stop matching portion 43 to prevent the driving wheel 4 and/or the driven wheel 5 from accidentally Rotation occurs, which affects the stability of the swing head mechanism. When it is necessary to swing the head, the operator applies an external force to the driving wheel 4 and/or the driven wheel 5 through the knob 41, so that when the driving wheel 4 and/or the driven wheel 5 rotate, the The stop portion 73 moves in a direction away from the stop fitting portion 43 under the action of the stop fitting portion 43 without blocking the rotation of the driving wheel 4 and/or the driven wheel 5 . As shown in FIG. 13 , an inclined first guide surface 731 and an inclined second guide surface 732 are respectively provided on both sides of the stop portion 73 . During the head swing operation, the stop portion 73 is more easily disengaged from the stop matching portion 43 without blocking the rotation of the gear set, thereby preventing the operator from experiencing great resistance during the head swing operation.
在该实施例中，所述主动轮齿部42设置于所述本体部的第二侧的边缘位置，所述止位配合部43与所述主动轮齿部42分离设置，且所述止位配合部43的表面为圆弧形齿面。所述止位部73设置于所述支撑件7的远端侧。所述止位部73至少部分是弹性的，所述主动轮4和/或所述从动轮5受外力驱动发生旋转时，所述止位部73在所述止位配合部43的作用下向远离所述止位配合部43的方向运动，且发生弹性变形。所述主动轮4和/或所述从动轮5上的外力消失后，所述止位部73在弹性变形恢复力的作用下，可以返回至初始位置，再次与所述止位配合部43啮合。由此，在摆头操作完成后，吻合器的使用过程中，钉头部9可以保持在一个稳定的角度，而不会出现不可控的摇摆现象，有利于提升手术效果。如图6所示，所述止位配合部43均匀地连续设置的至少两个止位配合部43，所述各个止位配合部43分别位于所述吻合器轴心的左右两侧；初始位置时，所述止位部73啮合于位于轴心处的所述止位配合部43，所述吻合器头部与轴向呈“0”度的角度，当顺时针或者逆时针方向旋转旋钮41时，所述止位部73分别可以和各个所述止位配合部43啮合，停留在不同的角度。In this embodiment, the driving gear tooth portion 42 is provided at an edge position on the second side of the body portion, the stop fitting portion 43 is provided separately from the driving gear tooth portion 42, and the stop position The surface of the fitting portion 43 is an arc-shaped tooth surface. The stop portion 73 is provided on the distal end side of the support member 7 . The stop portion 73 is at least partially elastic. When the driving wheel 4 and/or the driven wheel 5 are driven by an external force to rotate, the stop portion 73 moves toward the stop fitting portion 43 under the action of the stop fitting portion 43 . It moves in a direction away from the stop fitting portion 43 and undergoes elastic deformation. After the external force on the driving wheel 4 and/or the driven wheel 5 disappears, the stop portion 73 can return to the initial position under the action of the elastic deformation recovery force and engage with the stop matching portion 43 again. . Therefore, after the head swinging operation is completed, the nail head 9 can be maintained at a stable angle without uncontrollable swinging during use of the stapler, which is beneficial to improving the surgical effect. As shown in Figure 6, the stop fitting parts 43 are at least two stop fitting parts 43 evenly and continuously arranged, and each of the stop fitting parts 43 is located on the left and right sides of the stapler axis; the initial position When the stop part 73 is engaged with the stop fitting part 43 located at the axis, the stapler head is at an angle of "0" degree to the axial direction. When the knob 41 is rotated clockwise or counterclockwise, At this time, the stop portion 73 can engage with each of the stop matching portions 43 and stay at different angles.
在另一可替代的实施方式中，所述止位部也可以设置在壳体上，即设置在所述第一壳体3或第二壳体2上。所述止位配合部也可以设置在其他位置。例如，所述止位配合部设置在所述本体部的第二侧的其他位置而非边缘。或者，所述止位配合部也可以为所述主动轮齿部42。所述止位部可以设置在所述壳体或所述支撑件7的靠近主动轮齿部42的位置。在所述主动轮4和/或从动轮5不受外力时，所述止位部和所述主动轮齿部42相啮合，阻挡所述主动轮4的意外转动。或者，所述止位配合部也可以为所述第一从动轮齿部51。所述止位部也可以设置在所述壳体或所述支撑件7的靠近第一从动轮齿部51的位置。即在所述主动轮4和/或从动轮5不受外力时，所述止位部和所述第一从动轮齿部51相啮合，阻挡所述从动轮5的意外转动。或者，所述止位配合部也可以为所述第二从动轮齿部52，所述止位部设置在所述壳体或所述支撑件7的靠近第二从动轮齿部52的位置。即在所述主动轮4和/或从动轮5不受外力时，所述止位部和所述第二从动轮齿部52相啮合，阻挡所述从动轮5的意外转动。In another alternative embodiment, the stop portion may also be provided on the housing, that is, on the first housing 3 or the second housing 2 . The stop fitting portion can also be provided at other positions. For example, the stop fitting portion is provided at another position on the second side of the body portion instead of an edge. Alternatively, the stop fitting portion may also be the driving gear tooth portion 42 . The stop portion may be provided at a position of the housing or the support member 7 close to the driving gear tooth portion 42 . When the driving wheel 4 and/or the driven wheel 5 is not subject to external force, the stop portion meshes with the driving wheel tooth portion 42 to prevent the driving wheel 4 from accidentally rotating. Alternatively, the stop fitting portion may also be the first driven gear tooth portion 51 . The stop portion may also be provided at a position of the housing or the support member 7 close to the first driven gear tooth portion 51 . That is, when the driving wheel 4 and/or the driven wheel 5 is not subject to external force, the stop portion meshes with the first driven wheel tooth portion 51 to prevent the driven wheel 5 from accidentally rotating. Alternatively, the stop fitting portion may also be the second driven gear tooth portion 52 , and the stop portion is provided at a position of the housing or the support member 7 close to the second driven gear tooth portion 52 . That is, when the driving wheel 4 and/or the driven wheel 5 is not subject to external force, the stop portion meshes with the second driven wheel tooth portion 52 to prevent the driven wheel 5 from accidentally rotating.
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be concluded that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of them should be regarded as belonging to the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442872.8ACN116983038A (en) | 2022-04-25 | 2022-04-25 | Swing mechanism and medical anastomat |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442872.8ACN116983038A (en) | 2022-04-25 | 2022-04-25 | Swing mechanism and medical anastomat |
| Publication Number | Publication Date |
|---|---|
| CN116983038Atrue CN116983038A (en) | 2023-11-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210442872.8APendingCN116983038A (en) | 2022-04-25 | 2022-04-25 | Swing mechanism and medical anastomat |
| Country | Link |
|---|---|
| CN (1) | CN116983038A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564615A (en)* | 1992-10-09 | 1996-10-15 | Ethicon, Inc. | Surgical instrument |
| CN104546048A (en)* | 2015-01-19 | 2015-04-29 | 上海逸思医疗科技有限公司 | Surgical instrument and bending control mechanism thereof |
| CN111134751A (en)* | 2018-11-02 | 2020-05-12 | 上海逸思医疗科技有限公司 | A surgical instrument with a bendable actuator |
| CN112842433A (en)* | 2019-11-28 | 2021-05-28 | 天臣国际医疗科技股份有限公司 | Head swinging mechanism and medical anastomat |
| CN214064415U (en)* | 2020-12-18 | 2021-08-27 | 乐歌人体工学科技股份有限公司 | A lifting platform with a keyboard tray that can be lifted and lowered |
| CN217853128U (en)* | 2022-04-25 | 2022-11-22 | 天臣国际医疗科技股份有限公司 | Head swinging mechanism and medical stapler |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564615A (en)* | 1992-10-09 | 1996-10-15 | Ethicon, Inc. | Surgical instrument |
| CN104546048A (en)* | 2015-01-19 | 2015-04-29 | 上海逸思医疗科技有限公司 | Surgical instrument and bending control mechanism thereof |
| CN111134751A (en)* | 2018-11-02 | 2020-05-12 | 上海逸思医疗科技有限公司 | A surgical instrument with a bendable actuator |
| CN112842433A (en)* | 2019-11-28 | 2021-05-28 | 天臣国际医疗科技股份有限公司 | Head swinging mechanism and medical anastomat |
| CN214064415U (en)* | 2020-12-18 | 2021-08-27 | 乐歌人体工学科技股份有限公司 | A lifting platform with a keyboard tray that can be lifted and lowered |
| CN217853128U (en)* | 2022-04-25 | 2022-11-22 | 天臣国际医疗科技股份有限公司 | Head swinging mechanism and medical stapler |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |