技术领域Technical Field
本实用新型涉及骨科外固定器技术领域，特别涉及一种用于长骨畸形矫正的外固定器。The utility model relates to the technical field of orthopedic external fixators, in particular to an external fixator used for correcting long bone deformity.
背景技术Background Art
外固定器基于牵拉成骨技术广泛应用于矫形外科中，是一种微侵袭性工具，创伤小、适应症广，在肢体骨折复位、畸形矫治等过程中提供稳定而有弹性的固定。External fixators are widely used in orthopedic surgery based on distraction osteogenesis technology. They are minimally invasive tools with little trauma and a wide range of indications. They provide stable and flexible fixation during limb fracture reduction, deformity correction, etc.
现有的外固定器中具有一对固定环，且一对固定环之间采用六根方向可调的支撑杆进行连接，因此一对固定环的相对位置受限于支撑杆的长度，导致固定环立体关系变换幅度有限，当畸形分解的矫正中心偏离骨干之外时无法进行精准矫正。The existing external fixator has a pair of fixing rings, and the pair of fixing rings are connected by six direction-adjustable support rods. Therefore, the relative position of the pair of fixing rings is limited by the length of the support rods, resulting in a limited range of change in the three-dimensional relationship of the fixing rings. When the correction center of the deformity decomposition deviates from the backbone, accurate correction cannot be performed.
实用新型内容Utility Model Content
针对现有技术的不足，本实用新型提供了一种用于长骨畸形矫正的外固定器，提高了固定环的变换幅度，解决了当畸形分解的矫正中心偏离骨干之外时无法进行精准矫正的技术问题。In view of the deficiencies in the prior art, the utility model provides an external fixator for correcting long bone deformities, which increases the transformation range of the fixing ring and solves the technical problem that accurate correction cannot be performed when the correction center of the deformity decomposes deviates from the backbone.
本实用新型通过以下技术方案实现：The utility model is realized by the following technical solutions:
一种用于长骨畸形矫正的外固定器，包括第一端环、第二端环和多个复合支链，所述复合支链包括快调连接杆、微调连接杆和套杆，所述微调连接杆一端与所述套杆螺纹连接、另一端与所述快调连接杆插拔活动连接，所述微调连接杆与所述套杆之间通过第一锁紧螺丝进行锁定，所述微调连接杆与快调连接杆之间通过第二锁紧螺丝进行锁定，所述快调连接杆远离所述微调连接杆的一端与所述第一端环万向转动连接，所述套杆远离所述微调连接杆的一端与所述第二端环万向转动连接。An external fixator for correcting long bone deformity comprises a first end ring, a second end ring and a plurality of composite branches, wherein the composite branch comprises a quick-adjusting connecting rod, a fine-adjusting connecting rod and a sleeve rod, wherein one end of the fine-adjusting connecting rod is threadedly connected to the sleeve rod, and the other end is movably connected to the quick-adjusting connecting rod by plugging and pulling, the fine-adjusting connecting rod and the sleeve rod are locked by a first locking screw, the fine-adjusting connecting rod and the quick-adjusting connecting rod are locked by a second locking screw, one end of the quick-adjusting connecting rod away from the fine-adjusting connecting rod is universally rotatably connected to the first end ring, and one end of the sleeve rod away from the fine-adjusting connecting rod is universally rotatably connected to the second end ring.
进一步的，多个复合支链呈“W”状设置在所述第一端环和第二端环之间。Furthermore, a plurality of composite branches are arranged in a "W" shape between the first end ring and the second end ring.
进一步的，所述微调连接杆的外侧具有外螺纹，所述套杆的内壁上设置有与所述外螺纹配接的内螺纹，所述第一锁紧螺丝穿过所述套杆与所述微调连接杆抵接。Furthermore, the outer side of the fine-tuning connecting rod has an external thread, the inner wall of the sleeve rod is provided with an internal thread matched with the external thread, and the first locking screw passes through the sleeve rod and abuts against the fine-tuning connecting rod.
进一步的，所述套杆外侧套设有第一旋钮，所述第一锁紧螺丝依次穿过所述第一旋钮、套杆与所述微调连接杆抵接。Furthermore, a first knob is sleeved on the outer side of the sleeve rod, and the first locking screw passes through the first knob and the sleeve rod in sequence to abut against the fine-tuning connecting rod.
进一步的，所述微调连接杆具有通孔，所述快调连接杆可插拔地容纳在所述通孔内，所述第二锁紧螺丝穿过所述微调连接杆与所述快调连接杆抵接。Furthermore, the fine-adjustment connecting rod has a through hole, the quick-adjustment connecting rod is pluggably accommodated in the through hole, and the second locking screw passes through the fine-adjustment connecting rod and abuts against the quick-adjustment connecting rod.
进一步的，所述微调连接杆外侧套设有第二旋钮，所述第二锁紧螺丝依次穿过所述第二旋钮、微调连接杆与所述快调连接杆抵接。Furthermore, a second knob is sleeved on the outer side of the fine-tuning connecting rod, and the second locking screw passes through the second knob, the fine-tuning connecting rod and the quick-adjusting connecting rod in sequence.
进一步的，所述复合支链还包括第一连接件，所述第一连接件一端与所述套杆固定连接，另一端与所述第二端环万向转动连接。Furthermore, the composite branch chain also includes a first connecting member, one end of which is fixedly connected to the sleeve rod, and the other end of which is universally rotatably connected to the second end ring.
进一步的，所述第二端环上固定有第一球头，所述第一连接件上开设有第一球形槽，所述第一球头与所述第一球形槽配接。Furthermore, a first ball head is fixed on the second end ring, a first spherical groove is formed on the first connecting member, and the first ball head is matched with the first spherical groove.
进一步的，所述复合支链还包括第二连接件，所述第二连接件一端与所述快调连接杆固定连接，另一端与所述第一端环万向转动连接。Furthermore, the composite branch chain also includes a second connecting member, one end of which is fixedly connected to the quick-adjustable connecting rod, and the other end of which is universally rotatably connected to the first end ring.
进一步的，所述第一端环上固定有第二球头，所述第二连接件上开设有第二球形槽，所述第二球头与所述第二球形槽配接。Furthermore, a second ball head is fixed on the first end ring, a second spherical groove is formed on the second connecting member, and the second ball head is matched with the second spherical groove.
相比于现有技术，本实用新型的优点在于：Compared with the prior art, the advantages of the present invention are:
1、通过设置快调连接杆和微调连接杆两种，方便应用与不同需求，提高了固定环的变换幅度，解决了当畸形分解的矫正中心偏离骨干之外时无法进行精准矫正的技术问题。1. By setting up two types of connecting rods, quick-adjusting connecting rods and fine-adjusting connecting rods, it is convenient to apply and meet different needs, improves the transformation range of the fixed ring, and solves the technical problem that when the correction center of the deformity decomposition deviates from the backbone, it is impossible to perform accurate correction.
2、多个复合支链与第一端环和/或第二端环之间连接方式采用球头卡扣方式，安装方便，且球头具有万向功能，支持两环位置角度调节，球头位置安装有插销防止脱落。2. The connection between the multiple composite branch chains and the first end ring and/or the second end ring adopts a ball head buckle method, which is easy to install. The ball head has a universal function and supports the position and angle adjustment of the two rings. A pin is installed at the ball head position to prevent it from falling off.
3、第一锁紧螺丝和第二锁紧螺丝采用大螺母，方便手旋动使用。3. The first locking screw and the second locking screw use large nuts, which are convenient for hand rotation.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本实用新型一实施例的一种用于长骨畸形矫正的外固定器的结构示意图；FIG1 is a schematic structural diagram of an external fixator for correction of long bone deformity according to an embodiment of the present invention;
图2为本实用新型一实施例的一种用于长骨畸形矫正的外固定器的爆炸图；FIG2 is an exploded view of an external fixator for correcting long bone deformity according to an embodiment of the present invention;
图3为本实用新型一实施例的复合支链的结构示意图；FIG3 is a schematic diagram of the structure of a composite branch chain according to an embodiment of the present invention;
图4为图3中沿A-A的剖视图。Fig. 4 is a cross-sectional view along line A-A in Fig. 3 .
1、第一端环；10、第二球头；2、第二端环；20、第一球头；3、复合支链；30、快调连接杆；31、微调连接杆；310、外螺纹；311、通孔；32、套杆；320、内螺纹；33、第一连接件；330、第一球形槽；331、螺纹部；332、第一插销件；34、第二连接件；340、第二球形槽；341、螺纹槽；342、第二插销件；4、第一锁紧螺丝；5、第二锁紧螺丝；6、第一旋钮；7、第二旋钮；8、针夹。1. First end ring; 10. Second ball head; 2. Second end ring; 20. First ball head; 3. Composite branch chain; 30. Quick-adjust connecting rod; 31. Fine-adjusting connecting rod; 310. External thread; 311. Through hole; 32. Sleeve rod; 320. Internal thread; 33. First connecting member; 330. First spherical groove; 331. Threaded portion; 332. First latch member; 34. Second connecting member; 340. Second spherical groove; 341. Threaded groove; 342. Second latch member; 4. First locking screw; 5. Second locking screw; 6. First knob; 7. Second knob; 8. Needle clamp.
具体实施方式DETAILED DESCRIPTION
以下结合较佳实施例及其附图对实用新型技术方案作进一步非限制性的详细说明。在本实用新型的描述中，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”、“轴向”、“径向”、“周向”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。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本实用新型的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。下面通过参考附图描述的实施例是示例性的，旨在用于解释本实用新型，而不能理解为对本实用新型的限制。The following is a further non-restrictive detailed description of the utility model technical solution in conjunction with the preferred embodiment and its accompanying drawings. In the description of the utility model, 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", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limitations on the utility model.
如图1和图2所示，本实用新型一实施例的一种用于长骨畸形矫正的外固定器，包括第一端环1、第二端环2和多个复合支链3，多个复合支链3呈“W”状设置在第一端环1和第二端环2之间。第一端环1和第二端环2上均设置有与骨针(图中未示)连接的针夹8，骨针与骨折部位连接，达到固定断骨的目的。As shown in Fig. 1 and Fig. 2, an external fixator for correction of long bone deformity according to an embodiment of the utility model comprises a first end ring 1, a second end ring 2 and a plurality of composite branches 3, wherein the plurality of composite branches 3 are arranged in a "W" shape between the first end ring 1 and the second end ring 2. Needle clamps 8 connected to bone needles (not shown) are arranged on the first end ring 1 and the second end ring 2, and the bone needles are connected to the fractured part to achieve the purpose of fixing the broken bone.
多个复合支链3与第一端环1和/或第二端环2之间连接方式采用球头卡扣方式，安装方便，且球头具有万向功能，支持两环位置角度调节，球头位置安装有插销防止脱落。The connection between the multiple composite branch chains 3 and the first end ring 1 and/or the second end ring 2 adopts a ball head snap-on method, which is easy to install. The ball head has a universal function and supports angle adjustment of the two rings. A pin is installed at the ball head position to prevent it from falling off.
如图3和图4所示，复合支链3包括快调连接杆30、微调连接杆31和套杆32，微调连接杆31一端与套杆32螺纹连接、另一端与快调连接杆30插拔活动连接，微调连接杆31与套杆32之间通过第一锁紧螺丝4进行锁定，微调连接杆31与快调连接杆30之间通过第二锁紧螺丝5进行锁定，快调连接杆30远离微调连接杆31的一端与第一端环1万向转动连接，套杆32远离微调连接杆31的一端与第二端环2万向转动连接。第一锁紧螺丝4和第二锁紧螺丝5采用大螺母，方便手旋动使用。As shown in Fig. 3 and Fig. 4, the composite branch chain 3 includes a quick-adjusting connecting rod 30, a fine-adjusting connecting rod 31 and a sleeve rod 32. One end of the fine-adjusting connecting rod 31 is threadedly connected to the sleeve rod 32, and the other end is plug-in movably connected to the quick-adjusting connecting rod 30. The fine-adjusting connecting rod 31 and the sleeve rod 32 are locked by a first locking screw 4, and the fine-adjusting connecting rod 31 and the quick-adjusting connecting rod 30 are locked by a second locking screw 5. The end of the quick-adjusting connecting rod 30 away from the fine-adjusting connecting rod 31 is universally rotatably connected to the first end ring 1, and the end of the sleeve rod 32 away from the fine-adjusting connecting rod 31 is universally rotatably connected to the second end ring 2. The first locking screw 4 and the second locking screw 5 use large nuts for easy manual rotation.
微调连接杆31的外侧具有外螺纹310，套杆32的内壁上设置有与外螺纹310配接的内螺纹320，第一锁紧螺丝4穿过套杆32与微调连接杆31抵接。The outer side of the fine-tuning connecting rod 31 has an external thread 310 , and the inner wall of the sleeve rod 32 is provided with an internal thread 320 matched with the external thread 310 . The first locking screw 4 passes through the sleeve rod 32 and abuts against the fine-tuning connecting rod 31 .
套杆32外侧套设有第一旋钮6，第一锁紧螺丝4依次穿过第一旋钮6、套杆32与微调连接杆31抵接。The first knob 6 is sleeved on the outer side of the sleeve rod 32 , and the first locking screw 4 passes through the first knob 6 , the sleeve rod 32 and abuts against the fine-tuning connecting rod 31 in sequence.
微调连接杆31具有通孔311，快调连接杆30可插拔地容纳在通孔311内，第二锁紧螺丝5穿过微调连接杆31与快调连接杆30抵接。The fine-adjusting connecting rod 31 has a through hole 311 , and the quick-adjusting connecting rod 30 is pluggably accommodated in the through hole 311 . The second locking screw 5 passes through the fine-adjusting connecting rod 31 and abuts against the quick-adjusting connecting rod 30 .
微调连接杆31外侧套设有第二旋钮7，第二锁紧螺丝5依次穿过第二旋钮7、微调连接杆31与快调连接杆30抵接。A second knob 7 is sleeved on the outer side of the fine-adjusting connecting rod 31 , and the second locking screw 5 passes through the second knob 7 , the fine-adjusting connecting rod 31 and abuts against the quick-adjusting connecting rod 30 in sequence.
复合支链3还包括第一连接件33，第一连接件33一端与套杆32固定连接，另一端与第二端环2万向转动连接。The composite branch chain 3 further includes a first connecting member 33 , one end of which is fixedly connected to the sleeve rod 32 , and the other end of which is universally rotatably connected to the second end ring 2 .
第一连接件33上设置有螺纹部331，螺纹部331与套杆32的内壁上内螺纹320配接。The first connecting member 33 is provided with a threaded portion 331 , and the threaded portion 331 is matched with the internal thread 320 on the inner wall of the sleeve rod 32 .
第二端环2上固定有第一球头20，第一连接件33上开设有第一球形槽330，第一球头20与第一球形槽330配接。A first ball head 20 is fixed on the second end ring 2 , a first spherical groove 330 is formed on the first connecting member 33 , and the first ball head 20 is matched with the first spherical groove 330 .
第一连接件33上还设置有第一插销件332，具体的，第一插销件332一端缠绕在第一连接件33外侧，另一端靠近第一球形槽330的开口位置且完全贯穿第一球形槽330用于对第一球头20进行限位，避免第一球头20脱离第一球形槽330。A first latch member 332 is also provided on the first connecting member 33. Specifically, one end of the first latch member 332 is wrapped around the outside of the first connecting member 33, and the other end is close to the opening position of the first spherical groove 330 and completely penetrates the first spherical groove 330 to limit the first ball head 20 and prevent the first ball head 20 from escaping from the first spherical groove 330.
复合支链3还包括第二连接件34，第二连接件34一端与快调连接杆30固定连接，另一端与第一端环1万向转动连接。The composite branch chain 3 further includes a second connecting member 34 , one end of which is fixedly connected to the quick-adjusting connecting rod 30 , and the other end of which is universally rotatably connected to the first end ring 1 .
第二连接件34上设置有螺纹槽341，快调连接杆30靠近第二连接件34的端部具有与螺纹槽341配接的螺纹部(图中未示)。The second connecting member 34 is provided with a thread groove 341 , and the end of the quick-adjusting connecting rod 30 close to the second connecting member 34 has a threaded portion (not shown) matched with the thread groove 341 .
第一端环1上固定有第二球头10，第二连接件34上开设有第二球形槽340，第二球头10与第二球形槽340配接。A second ball head 10 is fixed on the first end ring 1 , a second spherical groove 340 is formed on the second connecting member 34 , and the second ball head 10 is matched with the second spherical groove 340 .
第二连接件34上还设置有第二插销件342，具体的，第二插销件342一端缠绕在第二连接件34外侧，另一端靠近第二球形槽340的开口位置且完全贯穿第二球形槽340用于对第二球头10进行限位，避免第二球头10脱离第二球形槽340。A second latch member 342 is also provided on the second connecting member 34. Specifically, one end of the second latch member 342 is wrapped around the outside of the second connecting member 34, and the other end is close to the opening position of the second spherical groove 340 and completely penetrates the second spherical groove 340 to limit the second ball head 10 and prevent the second ball head 10 from escaping from the second spherical groove 340.
工作时，可以松开第二锁紧螺丝5，可以直接抽拉快调连接杆30以实现快速调整到需求位置，调整完成后再次锁紧第二锁紧螺丝5；另外可以松开第一锁紧螺丝4，旋转微调连接杆31逐渐延伸以实现微调节，通过设置快调连接杆30和微调连接杆31两种，方便应用与不同需求，提高了固定环的变换幅度，解决了当畸形分解的矫正中心偏离骨干之外时无法进行精准矫正的技术问题。During operation, the second locking screw 5 can be loosened, and the quick-adjustment connecting rod 30 can be directly pulled out to quickly adjust to the required position. After the adjustment is completed, the second locking screw 5 can be locked again; in addition, the first locking screw 4 can be loosened, and the fine-adjustment connecting rod 31 can be rotated to gradually extend to achieve fine-adjustment. By providing the quick-adjustment connecting rod 30 and the fine-adjustment connecting rod 31, it is convenient to apply and meet different needs, improves the transformation range of the fixing ring, and solves the technical problem that when the correction center of the deformity decomposition deviates from the backbone, it is impossible to perform precise correction.
以上所述实施例仅表达了本实用新型的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。因此，本实用新型专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322661870.0UCN221730846U (en) | 2023-09-28 | 2023-09-28 | An external fixator for correction of long bone deformity |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322661870.0UCN221730846U (en) | 2023-09-28 | 2023-09-28 | An external fixator for correction of long bone deformity |
| Publication Number | Publication Date |
|---|---|
| CN221730846Utrue CN221730846U (en) | 2024-09-20 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322661870.0UActiveCN221730846U (en) | 2023-09-28 | 2023-09-28 | An external fixator for correction of long bone deformity |
| Country | Link |
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| CN (1) | CN221730846U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117297732A (en)* | 2023-09-28 | 2023-12-29 | 苏州益诺斯医疗科技有限公司 | External fixator for correcting long bone deformity |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117297732A (en)* | 2023-09-28 | 2023-12-29 | 苏州益诺斯医疗科技有限公司 | External fixator for correcting long bone deformity |
| Publication | Publication Date | Title |
|---|---|---|
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | Effective date of registration:20241030 Address after:F201, 2nd Floor, Building 6, No. 125 Longpan Road, Malu Town, Jiading District, Shanghai, 201800 Patentee after:AIKE(SHANGHAI) MEDICAL INSTRUMENT Co.,Ltd. Country or region after:China Address before:Room 502, building 1, Linghui Business Plaza, 278 Suzhou Avenue East, Suzhou Industrial Park, 215000, Jiangsu Province Patentee before:SUZHOU YINUOSI MEDICAL SCIENCE & TECHNOLOGY CO.,LTD. Country or region before:China | |
| TR01 | Transfer of patent right |