技术领域Technical Field
本发明涉及医疗器械技术领域，更具体地说，涉及一种能够结合内固定板固定肌腱的螺钉。The present invention relates to the technical field of medical devices, and more particularly to a screw capable of fixing a tendon in combination with an internal fixation plate.
背景技术Background technique
医学临床中运动医学主要诊治与运动有关的骨与关节、肌肉、肌腱、软骨等创伤。其中，骨折合并关节周围韧带、肌腱损伤十分常见。目前，针对骨折手术治疗多采用内固定接骨板，用于保持骨折断端的稳定，而针对肌腱损伤则采用带线锚钉将肌腱固定在腱骨交界部分，为肌腱愈合提供断端接触保证。但是，临床中骨折合并肌腱止点损伤十分常见，而将两种技术相结合存在一定技术、操作难点。In clinical medicine, sports medicine mainly diagnoses and treats sports-related injuries to bones, joints, muscles, tendons, cartilage, etc. Among them, fractures combined with injuries to ligaments and tendons around joints are very common. At present, surgical treatments for fractures mostly use internal fixation plates to maintain the stability of the fracture ends, while tendon injuries use wire anchors to fix the tendons at the junction of the tendons and bones, providing a guarantee of contact between the ends for tendon healing. However, fractures combined with tendon insertion injuries are very common in clinical practice, and there are certain technical and operational difficulties in combining the two technologies.
有手术医生结合钢板上带有的钉孔穿线，将肌腱缝合在钢板上。这种固定操作较为繁琐，特别是内固定板植入螺钉后后常难以再次穿线，增加了手术创伤和手术操作时间。Some surgeons use the holes on the plate to thread the tendons to the plate. This fixation operation is more complicated, especially after the internal fixation plate is implanted, it is often difficult to thread the screws again, which increases the surgical trauma and operation time.
另外，还有手术医生采用在内固定板周围植入锚钉固定肌腱的技术，比如专利CN213129826U一种可带线空心锁定螺钉就公开了通过肌腱缝合线将肌腱固定于空心锁定螺钉上，而空心锁定螺钉通过钉头部的螺纹与钢板的反向螺纹进行锁定固定的技术方案，锁定螺钉可达到成角稳定，锁定螺钉与钢板结合为一体，有效增加螺钉的抗拔出力。而且通过钉头上的工艺缺口以及拉线可自由的带线将肌腱骨折块进行缝合减张固定，兼顾发挥张力带固定的优势同时，可有效达到骨折的坚强稳定固定，避免内固定的松动、断裂。但是这种结构内固定板植入螺钉后难以再次穿线。CN105852951A一种用于修复受损韧带或肌腱的空心螺钉也提出了用空心螺钉固定受损韧带或者肌腱的方案，但是和CN213129826U存在同样的问题。锚钉植入点常需要避开内固定板放置部位，这可能导致锚钉植入点无法置入理想的腱骨结合部位，使修复后的肌腱止点偏移，鉴于此，我们提出一种能够结合内固定板固定肌腱的螺钉。In addition, there are also surgeons who use the technology of implanting anchors around the internal fixation plate to fix the tendon. For example, patent CN213129826U discloses a hollow locking screw with a thread that fixes the tendon to the hollow locking screw through a tendon suture line, and the hollow locking screw is locked and fixed through the thread of the nail head and the reverse thread of the steel plate. The locking screw can achieve angular stability, and the locking screw and the steel plate are combined into one, which effectively increases the anti-pullout force of the screw. Moreover, the tendon fracture fragment is sutured and fixed by the process notch on the nail head and the pull line can be freely brought with the line, while taking into account the advantages of tension band fixation, it can effectively achieve strong and stable fixation of the fracture and avoid loosening and breakage of the internal fixation. However, it is difficult to thread the internal fixation plate of this structure again after the screw is implanted. CN105852951A, a hollow screw for repairing damaged ligaments or tendons, also proposes a solution of fixing damaged ligaments or tendons with hollow screws, but it has the same problem as CN213129826U. The anchor implantation point often needs to avoid the internal fixation plate placement site, which may result in the anchor implantation point being unable to be placed in the ideal tendon-bone junction, causing the repaired tendon insertion point to shift. In view of this, we propose a screw that can be combined with an internal fixation plate to fix the tendon.
发明内容Summary of the invention
针对上述背景技术中提出“手术医生结合钢板上带有的钉孔穿线，将肌腱缝合在钢板上，这种固定操作较为繁琐，特别是内固定板植入螺钉后后常难以再次穿线，增加了手术创伤和手术操作时间,而用在内固定板周围植入锚钉固定肌腱的技术会使修复后的肌腱止点偏移”的技术问题。本发明提供了一种能够结合内固定板固定肌腱的螺钉，将用于肌腱修复的缝线结合在纽扣锚钉尾部，纽扣螺钉可以与基座螺钉结合，也可以随时分开，当需要在内固定板固定骨折断端的同时固定损伤肌腱时，可使用该纽扣锚钉结合基座螺钉进行内固定板固定，再使用其尾部缝线固定损伤的肌腱。当仅需结合内固定板钉孔固定肌腱时，可该纽扣锚钉直接拧入钉孔内，再使用其所尾部缝线固定肌腱。纽扣锚钉采用内部空心结构，不阻挡肌腱腱束与内固定板下方的骨组织进一步愈合的过程。The technical problem raised in the above background technology that "the surgeon threaded the tendon on the steel plate in combination with the nail holes on the steel plate, and this fixation operation is relatively cumbersome, especially after the internal fixation plate is implanted with screws, it is often difficult to thread again, which increases the surgical trauma and surgical operation time, and the technology of implanting anchors around the internal fixation plate to fix the tendon will cause the tendon insertion point to shift after repair." The present invention provides a screw that can be combined with an internal fixation plate to fix the tendon, and the suture used for tendon repair is combined with the tail of the button anchor. The button screw can be combined with the base screw and can also be separated at any time. When it is necessary to fix the fracture end of the internal fixation plate and the damaged tendon at the same time, the button anchor can be used in combination with the base screw to fix the internal fixation plate, and then the tail suture is used to fix the damaged tendon. When it is only necessary to fix the tendon in combination with the nail hole of the internal fixation plate, the button anchor can be directly screwed into the nail hole, and then the tail suture is used to fix the tendon. The button anchor adopts an internal hollow structure, which does not block the further healing process of the tendon tendon bundle and the bone tissue under the internal fixation plate.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种能够结合内固定板固定肌腱的螺钉，包括基座螺钉，所述基座螺钉顶部开设有凹槽A，所述凹槽A靠近顶部的位置开设有内螺纹；A screw capable of fixing a tendon in combination with an internal fixation plate, comprising a base screw, a groove A is provided at the top of the base screw, and an internal thread is provided at a position near the top of the groove A;
纽扣锚钉，所述纽扣锚钉顶端设置有固定缝线，所述纽扣锚钉外壁设置有外螺纹，所述外螺纹与所述内螺纹匹配。A button anchor, wherein a fixing suture is arranged at the top end of the button anchor, and an outer wall of the button anchor is arranged with an external thread, and the external thread matches the internal thread.
优选地，所述纽扣锚钉中部开设有凹槽B，所述凹槽B内六角结构或者方形结构。Preferably, a groove B is provided in the middle of the button anchor, and the groove B has a hexagonal structure or a square structure.
优选地，所述凹槽B沿所述纽扣锚钉的轴线方向延伸，所述凹槽B与所述凹槽A连通。Preferably, the groove B extends along the axial direction of the button anchor, and the groove B is communicated with the groove A.
优选地，所述基座螺钉内部开设有贯通孔，所述贯通孔沿基座螺钉的轴线方向延伸，所述贯通孔与所述凹槽A连通。Preferably, a through hole is opened inside the base screw, and the through hole extends along the axial direction of the base screw, and the through hole is connected with the groove A.
优选地，所述基座螺钉远离凹槽A的一端设置有螺钉头，所述螺钉头沿基座螺钉的轴线方向开设有与所述贯通孔连通的孔；Preferably, a screw head is provided at one end of the base screw away from the groove A, and a hole communicating with the through hole is opened on the screw head along the axial direction of the base screw;
所述基座螺钉与螺钉头为一体式结构，所述螺钉头为普通尖头或者自钻结构。The base screw and the screw head are an integrated structure, and the screw head is a common pointed head or a self-drilling structure.
优选地，所述基座螺钉包括：螺钉尾部和螺钉体部，所述螺钉尾部位于凹槽A的一端，所述螺钉尾部外壁设置有尾部螺纹；Preferably, the base screw comprises: a screw tail and a screw body, the screw tail is located at one end of the groove A, and the outer wall of the screw tail is provided with a tail thread;
所述螺钉体部位于螺钉尾部与螺钉头之间，所述螺钉体部外壁设置有体部螺纹。The screw body is located between the screw tail and the screw head, and the outer wall of the screw body is provided with a body thread.
优选地，所述凹槽A为圆台状槽，所述凹槽A沿所述基座螺钉的轴线方向延伸，所述凹槽A位于所述内螺纹处的直径大于凹槽A未开设螺纹处的直径，所述凹槽A位于所述内螺纹底部的位置为六角结构或者方形结构。Preferably, the groove A is a truncated cone-shaped groove, the groove A extends along the axial direction of the base screw, the diameter of the groove A at the internal thread is larger than the diameter of the groove A where no thread is opened, and the position of the groove A at the bottom of the internal thread is a hexagonal structure or a square structure.
优选地，所述固定缝线为：一根两头缝线，或者两根四头缝线，或者四根八头缝线中的一种。Preferably, the fixing suture is one of: one two-head suture, two four-head sutures, or four eight-head sutures.
优选地，所述基座螺钉与螺钉头为一体式结构，所述螺钉头为普通尖头。Preferably, the base screw and the screw head are an integrated structure, and the screw head is a common pointed head.
优选地，所述基座螺钉头部为自攻结构。Preferably, the base screw head is a self-tapping structure.
相比于现有技术，本发明的有益效果在于：Compared with the prior art, the present invention has the following beneficial effects:
本发明将用于肌腱修复的缝线结合在纽扣锚钉的尾部，利用纽扣锚钉与基座螺钉的结合，通过在纽扣锚钉外壁设置外螺纹以及在基座螺钉顶部开设内螺纹，便于将纽扣锚钉与基座螺钉连接，当需要在内固定板固定骨折断端的同时固定损伤肌腱时，使用该纽扣锚钉结合基座螺钉进行内固定板固定，再使用其尾部的固定缝线固定损伤的肌腱。当仅需结合内固定板钉孔固定肌腱时，可将该纽扣锚钉直接拧入凹槽A的内螺纹中，再使用其尾部的固定缝线固定肌腱。纽扣锚钉采用内部空心结构，不阻挡肌腱腱束与内固定板下方的骨组织进一步愈合的过程。The present invention combines the suture used for tendon repair with the tail of the button anchor, and utilizes the combination of the button anchor and the base screw. By providing an external thread on the outer wall of the button anchor and opening an internal thread on the top of the base screw, the button anchor is conveniently connected to the base screw. When it is necessary to fix the fracture end of the bone with the internal fixation plate and the damaged tendon at the same time, the button anchor is used in combination with the base screw to fix the internal fixation plate, and then the fixed suture at the tail is used to fix the damaged tendon. When it is only necessary to fix the tendon in combination with the nail hole of the internal fixation plate, the button anchor can be directly screwed into the internal thread of the groove A, and then the fixed suture at the tail is used to fix the tendon. The button anchor adopts an internal hollow structure, which does not block the further healing process of the tendon tendon bundle and the bone tissue under the internal fixation plate.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明的整体结构示意图；Fig. 1 is a schematic diagram of the overall structure of the present invention;
图2为本发明的整体结构剖视示意图；FIG2 is a schematic cross-sectional view of the overall structure of the present invention;
图3为本发明的基座螺钉剖视示意图；FIG3 is a schematic cross-sectional view of a base screw of the present invention;
图4为本发明的基座螺钉俯视示意图；FIG4 is a schematic top view of a base screw of the present invention;
图5为本发明的纽扣锚钉示意图；FIG5 is a schematic diagram of a button anchor of the present invention;
图6为本发明的纽扣锚钉剖视示意图。FIG. 6 is a schematic cross-sectional view of a button anchor of the present invention.
图中标号说明：1、基座螺钉；101、螺钉尾部；102、螺钉体部；2、纽扣锚钉；3、螺钉头；4、内螺纹；5、凹槽A；6、贯通孔；7、固定缝线；8、外螺纹；9、凹槽B。Explanation of the numbers in the figure: 1. base screw; 101. screw tail; 102. screw body; 2. button anchor; 3. screw head; 4. internal thread; 5. groove A; 6. through hole; 7. fixing suture; 8. external thread; 9. groove B.
具体实施方式Detailed ways
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“设置有”、“套设/接”、“连接”等，应做广义理解，例如“连接”，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted/connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
实施例：Example:
请参阅图1-6，一种能够结合内固定板固定肌腱的螺钉，包括基座螺钉1，配合锁定内固定板使用，也可以不带有螺纹配合普通内固定板使用，基座螺钉1顶部开设有凹槽A5，凹槽A5用于基座螺钉1的拧入，一般为内六角结构，也可以是梅花结构或方形结构，凹槽A5靠近顶部的位置开设有内螺纹4；Please refer to FIG. 1-6 , a screw capable of fixing a tendon in combination with an internal fixation plate includes a base screw 1, which is used in conjunction with a locking internal fixation plate, and can also be used without threads in conjunction with an ordinary internal fixation plate. A groove A5 is provided at the top of the base screw 1, and the groove A5 is used for screwing the base screw 1 in, and is generally a hexagonal structure, and can also be a plum blossom structure or a square structure. An internal thread 4 is provided near the top of the groove A5;
纽扣锚钉2，纽扣锚钉2顶端设置有固定缝线7，固定缝线7一般为两根，四头缝线，也可以是一根，两头缝线，或者四根，八头缝线，纽扣锚钉2外壁设置有外螺纹8，外螺纹8与内螺纹4匹配，通过外螺纹8与内螺纹4螺纹配合，便于固定纽扣锚钉2。A button anchor 2 is provided with a fixing suture 7 at the top end of the button anchor 2. The fixing sutures 7 are generally two, four-end sutures, or one, two-end sutures, or four, eight-end sutures. An outer wall of the button anchor 2 is provided with an external thread 8, and the external thread 8 matches the internal thread 4. The external thread 8 and the internal thread 4 are threadedly matched to facilitate fixing the button anchor 2.
本发明中，纽扣锚钉2中部开设有凹槽B9，凹槽B9内六角结构或者方形结构，凹槽B9用于纽扣锚钉2拧入基座螺钉1中，凹槽B9也可以是梅花结构。In the present invention, a groove B9 is provided in the middle of the button anchor 2. The groove B9 has a hexagonal structure or a square structure. The groove B9 is used for screwing the button anchor 2 into the base screw 1. The groove B9 may also have a plum blossom structure.
本发明中，凹槽B9沿纽扣锚钉2的轴线方向延伸，凹槽B9与凹槽A5连通，通过凹槽B9的设置不阻挡肌腱腱束与内固定板下方的骨组织进一步愈合的过程。In the present invention, the groove B9 extends along the axial direction of the button anchor 2, and the groove B9 is connected to the groove A5. The setting of the groove B9 does not block the further healing process of the tendon bundle and the bone tissue below the internal fixation plate.
本发明中，基座螺钉1内部开设有贯通孔6，贯通孔6沿基座螺钉1的轴线方向延伸，贯通孔6与凹槽A5连通。In the present invention, a through hole 6 is formed inside the base screw 1 , and the through hole 6 extends along the axial direction of the base screw 1 , and the through hole 6 is communicated with the groove A5 .
本发明中，基座螺钉1远离凹槽A5的一端设置有螺钉头3，螺钉头3沿基座螺钉1的轴线方向开设有与所述贯通孔6连通的孔；In the present invention, a screw head 3 is provided at one end of the base screw 1 away from the groove A5, and a hole communicating with the through hole 6 is opened in the screw head 3 along the axial direction of the base screw 1;
基座螺钉1与螺钉头3为一体式结构，螺钉头3为普通尖头或者自攻结构。The base screw 1 and the screw head 3 are an integrated structure, and the screw head 3 is a common pointed head or a self-tapping structure.
本发明中，基座螺钉1包括：螺钉尾部101和螺钉体部102，螺钉尾部101位于凹槽A5的一端，螺钉尾部101外壁设置有尾部螺纹，配合锁定内固定板使用，也可以不带有尾部螺纹配合普通内固定板使用；In the present invention, the base screw 1 includes: a screw tail 101 and a screw body 102. The screw tail 101 is located at one end of the groove A5. The outer wall of the screw tail 101 is provided with a tail thread, which is used in conjunction with the locking internal fixing plate. It can also be used without the tail thread in conjunction with an ordinary internal fixing plate.
螺钉体部102位于螺钉尾部与螺钉头3之间，螺钉体部102外壁设置有体部螺纹，体部螺纹可以有多重不同螺距或宽度。The screw body 102 is located between the screw tail and the screw head 3 . The outer wall of the screw body 102 is provided with a body thread, and the body thread can have multiple different pitches or widths.
凹槽A5为圆台状槽，凹槽A5沿基座螺钉1的轴线方向延伸，凹槽A5位于内螺纹4处的直径大于凹槽A5未开设螺纹处的直径，便于穿过内螺纹4通过凹槽A5下部将基座螺钉拧入，凹槽A5位于所述内螺纹4底部的位置为六角结构或者方形结构。The groove A5 is a truncated cone-shaped groove, which extends along the axial direction of the base screw 1. The diameter of the groove A5 at the internal thread 4 is larger than the diameter of the groove A5 where no thread is provided, so that the base screw can be screwed in through the internal thread 4 through the lower part of the groove A5. The position of the groove A5 at the bottom of the internal thread 4 is a hexagonal structure or a square structure.
固定缝线7为：一根两头缝线，或者两根四头缝线，或者四根八头缝线中的一种。The fixing suture 7 is one of: a two-head suture, two four-head sutures, or four eight-head sutures.
基座螺钉1与螺钉头3为一体式结构，所述螺钉头3为普通尖头。The base screw 1 and the screw head 3 are an integrated structure, and the screw head 3 is a common pointed head.
或者基座螺钉1头部为自攻结构。Or the head of the base screw 1 is a self-tapping structure.
本发明将用于肌腱修复的缝线结合在纽扣锚钉2的尾部，利用纽扣锚钉2与基座螺钉1的结合，通过在纽扣锚钉2外壁设置外螺纹8以及在基座螺钉1顶部开设内螺纹4，便于将纽扣锚钉2与基座螺钉1连接，当需要在内固定板固定骨折断端的同时固定损伤肌腱时，使用该纽扣锚钉2结合基座螺钉1进行内固定板固定，再使用其尾部的固定缝线7固定损伤的肌腱。当仅需结合内固定板钉孔固定肌腱时，可将该纽扣锚钉2直接拧入凹槽A5的内螺纹4中，再使用其尾部的固定缝线7固定肌腱。纽扣锚钉2采用内部空心结构，不阻挡肌腱腱束与内固定板下方的骨组织进一步愈合的过程。The present invention combines the suture used for tendon repair with the tail of the button anchor 2, and utilizes the combination of the button anchor 2 and the base screw 1. By providing an external thread 8 on the outer wall of the button anchor 2 and opening an internal thread 4 on the top of the base screw 1, the button anchor 2 is conveniently connected to the base screw 1. When it is necessary to fix the fracture end with the internal fixation plate and the damaged tendon at the same time, the button anchor 2 is combined with the base screw 1 to fix the internal fixation plate, and then the fixed suture 7 at the tail is used to fix the damaged tendon. When it is only necessary to fix the tendon in combination with the nail hole of the internal fixation plate, the button anchor 2 can be directly screwed into the internal thread 4 of the groove A5, and then the fixed suture 7 at the tail is used to fix the tendon. The button anchor 2 adopts an internal hollow structure, which does not block the further healing process of the tendon tendon bundle and the bone tissue under the internal fixation plate.
本发明通过改变用于肌腱修复的缝线与空心螺钉的连接方式，极大的改善了空心螺钉使用的灵活性，彻底改变了之前肌腱缝合线与螺钉的结合关系，将提供通过空间变成固定载体，而且能够根据不同情况灵活使用，提高了手术使用的精准性，使得和患者的实际情况更加贴合。The present invention greatly improves the flexibility of using hollow screws by changing the connection mode between sutures and hollow screws used for tendon repair, and completely changes the previous combination relationship between tendon sutures and screws. It turns the provided space into a fixed carrier and can be flexibly used according to different situations, thereby improving the accuracy of surgical use and making it more in line with the actual situation of the patient.
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的仅为本发明的优选例，并不用来限制本发明，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099874.1ACN114587464B (en) | 2022-01-27 | 2022-01-27 | A screw capable of fixing tendons in combination with an internal fixation plate |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099874.1ACN114587464B (en) | 2022-01-27 | 2022-01-27 | A screw capable of fixing tendons in combination with an internal fixation plate |
| Publication Number | Publication Date |
|---|---|
| CN114587464A CN114587464A (en) | 2022-06-07 |
| CN114587464Btrue CN114587464B (en) | 2024-06-07 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210099874.1AActiveCN114587464B (en) | 2022-01-27 | 2022-01-27 | A screw capable of fixing tendons in combination with an internal fixation plate |
| Country | Link |
|---|---|
| CN (1) | CN114587464B (en) |
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|---|---|---|---|---|
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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