WO2013185566A1 - 快开式开胸复位固定器 - Google Patents

快开式开胸复位固定器 Download PDF

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Publication number
WO2013185566A1
WO2013185566A1 PCT/CN2013/076923 CN2013076923W WO2013185566A1 WO 2013185566 A1 WO2013185566 A1 WO 2013185566A1 CN 2013076923 W CN2013076923 W CN 2013076923W WO 2013185566 A1 WO2013185566 A1 WO 2013185566A1
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Prior art keywords
fixed plate
hole
quick
fixing plate
plate
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PCT/CN2013/076923
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English (en)
French (fr)
Inventor
缪祥文
达国祖
袁成龙
王宏伟
徐燕
Original Assignee
兰州西脉记忆合金股份有限公司
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Publication of WO2013185566A1 publication Critical patent/WO2013185566A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/82—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for bone cerclage
    • A61B17/823—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for bone cerclage for the sternum
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect

Definitions

  • the invention belongs to a medical device and relates to a quick opening type chest reduction and fixation device.
  • the way to open the chest cavity is generally to cut the sternum longitudinally from the middle.
  • the method of fixing the sternum is to punch holes on both sides of the longitudinal incision in the middle of the sternum. Before the sternum is closed, Wear the wire in the hole. After the sternum is closed, tie the wires one by one. Due to the respiratory movement of the lungs, there is a dilating force on the sternum, so the steel wire should be pressurized and bundled. If the steel wire is loosely bundled, under the action of the respiratory expansion force, the longitudinal incision of the sternum is easily split, and the fixation is not fixed. Not conducive to healing.
  • the object of the present invention is to provide a quick-opening open chest reduction and fixation device which is convenient for loading and unloading.
  • a solution to achieve the object of the invention is to include an embracing arm, in particular a left fixing plate 1 A left embracing arm is arranged, and a right embracing arm is arranged on the right fixing plate 3, and a flat elongated through hole 9 is arranged in the middle of the left fixing plate 1 and the right fixing plate 3, and a fixing knob is installed in the flat elongated through hole 9.
  • the two ends of the left fixing plate 1 are respectively provided with a stopper 2, the left fixing plate 1 is provided with a buckle 7 on one side between the two embracing arms, and the other side is provided with a stopper 11 on the right fixing plate 3
  • the fixed knob 4 is in the shape of an I-shape, and the distance between the upper and lower plates is equal to or greater than the sum of the thicknesses of the left fixed plate 1 and the right fixed plate 3.
  • a hole 8 is provided in the middle of the fixing knob 4, and the hole 8 is a through hole or a blind hole.
  • the shape of the hole 8 is rectangular or square or elliptical.
  • the advantages of the invention are as follows: 1.
  • the shape memory alloy is used to make the bone surgery simple; 2.
  • the structure is reasonable and suitable for the fixation of the sternum. 3, the fixed pressure is stable, will not loosen due to the bone absorption of the sternal wound, and is not easy to fall off.
  • the left and right fixed plates are provided with through holes, which reduce the blood occlusion of the sternum, which is beneficial to the revascularization of the sternum and the blood circulation of the soft tissue above the sternum, shortening the healing cycle.
  • the split structure is adopted, which is convenient for loading and unloading. 6.
  • the split structure is reasonable and the fixing is firm.
  • FIG. 1 is a schematic structural view of the present invention
  • Figure 2 is a cross-sectional view taken along the line BB of Figure 1
  • Figure 3 is a cross-sectional view taken along line BB of Figure 1
  • Figure 4 is a cross-sectional view taken along line CC of Figure 1
  • Figure 5 is a cross-sectional view taken along line DD of Figure 1
  • Figure 6 is a schematic view of another structure of the present invention
  • Figure 6 is a cross-sectional view of EE.
  • the invention consists of three memory alloy parts, namely a left fixed plate 1, a right fixed plate 3 and a fixed knob 4.
  • the left fixed plate 1 is provided with a left embracing arm
  • the right fixed plate 3 is provided with a right embracing arm
  • left fixed A flat elongated through hole 9 is defined in the middle of the upper and lower fixing plates 3, and a fixed knob 4 is installed in the flat elongated through hole 9.
  • the two ends of the left fixed plate 1 are respectively provided with a stopper 2, and the left fixed portion
  • a buckle 7 is arranged on one side of the two ring arms on the board 1 , and a stopper 1 1 is arranged on the other side.
  • a gap 6 is formed between the two ring arms of the right fixing plate 3 corresponding to the left fixing plate 1 .
  • the notch 6 is provided with an inwardly inclined surface 10, and two projections 5 are provided on the long side of the flat elongated through hole 9 on the right fixing plate 3.
  • the fixing knob 4 is in the shape of an I-shape, and the distance between the upper and lower plates is equal to or slightly larger than the sum of the thicknesses of the left fixing plate 1 and the right fixing plate 3.
  • a hole 8 is provided in the middle of the fixing knob 4, and the hole 8 is a through hole or a blind hole.
  • the shape of the hole 8 is rectangular or square or elliptical. Easy Use the tool to rotate the fixed knob 4.
  • FIG. 1 As shown in FIG. 1 , three left embracing arms are arranged on the left fixing plate 1 , and three right embracing arms are arranged on the right fixing plate 3 to form three sets of embracing arms, and the upper fixing plate 1 and the right fixing plate 3 are arranged in the middle.
  • There is a flat elongated through hole 9 and a fixed knob 4 is mounted in the flat elongated through hole 9 .
  • Each of the two ends of the left fixed plate 1 is provided with a stopper 2 for restricting the longitudinal relative of the left fixed plate 1 and the right fixed plate 3 .
  • the left fixing plate 1 is provided with a buckle 7 on one side between the two arms, and the other side is provided with a stopper 11 for restricting the lateral relative displacement of the left fixing plate 1 and the right fixing plate 3, and two on the right fixing plate 3
  • Two protrusions 5 are provided on one side of the long side to limit the rotation of the fixed knob 4.
  • the left fixing plate 1 is provided with two left embracing arms
  • the right fixing plate 3 is correspondingly provided with two right embracing arms, which form two sets of embracing arms
  • the left fixing plate 1 is between the two embracing arms.
  • Two buckles 7 are provided on the side
  • one stopper 11 is provided on the other side, and other structures are the same as those in the first embodiment.
  • the sternum is cut longitudinally from the middle.
  • the invention of the appropriate size is selected.
  • the left fixing plate 1 and the right fixing plate 3 are installed, and the fixing knob 4 is placed into the flat elongated hole 9 In the middle, the fixing knob 4 is rotated by 90 degrees, and the left fixing plate 1 and the right fixing plate 3 are fixed one by one.
  • cooling because the invention is made of a memory alloy, it will become soft after cooling, which is easy to install on the patient's sternum, as the temperature increases At body temperature, the invention returns to its original shape under the action of the memory alloy, thus fixing the patient's sternum.
  • the fixing knob 4 is first rotated by a tool 90 degrees, the fixing knob 4 is taken out from the flat elongated through hole 9, and the bevel of the tool 6 is removed from the notch 6 by the tool.
  • the right fixing plate 3 was opened at 10 places, so that the left fixing plate 1 and the right fixing plate 3 were removed from both sides of the sternum, and the disassembly was quickly completed.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

一种快开式开胸复位固定器。它的左固定板（1）上设有左环抱臂，右固定板（3）上对应设有右环抱臂。左固定板（1）上和右固定板（3）上中间设有扁长形通孔（9），扁长形通孔中安装有固定旋钮（4）。左固定板（1）的两端头各设有一个挡块（2）。左固定板（1）上两环抱臂之间一侧设有搭扣（7），另一侧设有挡块（11）。右固定板（3）上两环抱臂之间对应左固定板（1）的挡块（11）处设有缺口（6），缺口（6）设有向内的斜面（10）。右固定板（3）上扁长形通孔（9）的长边一侧设有两个凸起（5）。该固定器采用形状记忆合金制作，使得接骨手术简便；结构合理，适合对胸骨的固定；采用了分体结构，装卸方便。

Description

快开式开胸复位固定器
技术领域
本发明属于医疗器械， 涉及快开式开胸复位固定器。
背景技术
目前， 在做胸外手术时， 打开胸腔的入路， 一般是将胸骨从 中间纵向切开， 手术后， 对胸骨的固定方法是在胸骨中间纵向切 口的两边打孔， 在胸骨关闭前， 在孔内穿好钢丝， 胸骨关闭后， 再将钢丝一个一个绑好。 由于肺部的呼吸运动， 对胸骨有一个扩 张力， 所以钢丝要加压捆绑， 若钢丝捆绑较松， 在呼吸扩张力的 作用下， 容易使胸骨纵向切口裂开， 起不到固定的作用， 不利于 愈合。 若钢丝捆绑太紧， 不小心钢丝断裂， 不但这一个捆绑固定 点不能使用， 而且断裂的钢丝有可能损伤胸骨下的重要脏器， 造 成医疗事故。 因而对大夫的操作技术要求较高， 有一定的风险。 中国专利 200520078272. X 环抱式胸骨接骨板， 中国专利 200820114940. 3 一种记忆合金胸骨接骨板， 在一定程度上克服 了钢丝捆绑的缺陷， 但带来了新的缺陷， 就是再次开胸拆下这种 胸骨接骨板比较困难， 占用时间较多。 如果在紧急情况下， 需要 开胸抢救这种病人， 会造成非常严重的后果。
发明内容
本发明的目的就是提供一种装卸方便的快开式开胸复位固定器。 实现本发明目的的解决方案是包括环抱臂， 特别是左固定板 1上 设有左环抱臂， 右固定板 3上对应设有右环抱臂，左固定板 1上和右 固定板 3上中间设有扁长形通孔 9， 扁长形通孔 9中安装有固定旋钮 4， 左固定板 1的两端头各设有一个挡块 2， 左固定板 1上两环抱臂 之间一侧设有搭扣 7， 另一侧设有挡块 11，右固定板 3上两环抱臂之 间对应左固定板 1的挡板 11处设有缺口 6， 缺口 6设有向内的斜面 10， 右固定板 3上扁长形通孔 9的长边一侧设有两个凸起 5。
固定旋钮 4是工字形状，上下两块板之间的距离等于或者大于左 固定板 1和右固定板 3的厚度之和。 固定旋钮 4的中间设有孔 8， 孔 8是通孔或者盲孔。 孔 8的形状是长方形或者方形或者椭圆形。
左固定板 1上的左环抱臂和右固定板 3上对应的右环抱臂至少有 两组。 本发明的优点是： 1、 采用了形状记忆合金制作， 使得接骨手 术简便； 2、结构合理，适合对胸骨的固定。 3、固定加压力稳定， 不会因胸骨创面的骨吸收而松动， 同时不易脱落。 4、 左右固定 板都开有通孔， 减少了对胸骨的血运遮挡， 有利于胸骨的血运重 建和胸骨上面的软组织的血液循环， 缩短了愈合周期。 5、 采用 了分体结构， 装卸方便。 6、 分体结构合理， 固定牢靠。 附图说明 图 1是本发明的结构示意图； 图 2是图 1的 A-A剖视图； 图 3是图 1的 B-B剖视图； 图 4是图 1的 C-C剖视图； 图 5是图 1的 D-D剖视图； 图 6是本发明的另一结构示意图； 图 7是图 6的 E-E剖视图。 图中： 1-左固定板， 2-挡块， 3-右固定板， 4-固定旋钮， 5-凸起， 6-缺口， 7-搭扣， 8-孔， 9-扁长形通孔， 10-斜面， 11-挡块。 具体实施方式
本发明由三个记忆合金零件组成， 即左固定板 1、 右固定板 3和 固定旋钮 4. 左固定板 1上设有左环抱臂， 右固定板 3上对应设有右 环抱臂， 左固定板 1上和右固定板 3上中间设有扁长形通孔 9， 扁长 形通孔 9中安装有固定旋钮 4， 左固定板 1的两端头各设有一个挡块 2，左固定板 1上两环抱臂之间一侧设有搭扣 7，另一侧设有挡块 1 1， 右固定板 3上两环抱臂之间对应左固定板 1的挡块 11处设有缺口 6， 缺口 6设有向内的斜面 10， 右固定板 3上扁长形通孔 9的长边一侧 设有两个凸起 5。
固定旋钮 4是工字形状，上下两块板之间的距离等于或者略大于 左固定板 1和右固定板 3的厚度之和。 固定旋钮 4的中间设有孔 8， 孔 8是通孔或盲孔。孔 8的形状是长方形或者方形或者椭圆形。便于 使用工具旋转固定旋钮 4。
实施例 1
如图 1所示， 左固定板 1上设有三个左环抱臂， 右固定板 3上对 应设有三个右环抱臂， 组成三组环抱臂， 左固定板 1上和右固定板 3 上中间设有扁长形通孔 9， 扁长形通孔 9中安装有固定旋钮 4， 左固 定板 1的两端头各设有一个挡块 2， 限制左固定板 1和右固定板 3的 纵向相对位移， 左固定板 1上两环抱臂之间一侧设有搭扣 7， 另一侧 设有挡块 11， 限制左固定板 1和右固定板 3的横向相对位移， 右固 定板 3上两环抱臂之间对应左固定板 1的挡块 11处设有缺口 6， 缺 口 6设有向内的斜面 10， 是便于拆卸时用工具撬开， 右固定板 3上 扁长形通孔 9的长边一侧设有两个凸起 5， 是用来限制固定旋钮 4转 动的。
实施例 2
如图 6所示， 左固定板 1上设有两个左环抱臂， 右固定板 3上对 应设有两个右环抱臂， 组成两组环抱臂， 左固定板 1上两环抱臂之间 一侧设有两个搭扣 7， 另一侧设有一个挡块 11， 其它结构与实施例 1 一样。
手术时， 将胸骨从中间纵向切开， 开胸手术做完后， 选用大 小合适的本发明， 这时左固定板 1和右固定板 3安装好， 固定旋钮 4 放入扁长形通孔 9中， 固定旋钮 4旋转 90度， 将左固定板 1和右固 定板 3进一歩固定。 然后冷却， 由于本发明是用记忆合金制成的， 冷 却后就会变软， 这样很容易安装在病人的胸骨上， 随着温度的提高达 到体温时， 在记忆合金的作用下， 本发明恢复到原来的形状， 这样就 固定了病人的胸骨。
安装了本发明的病人， 如果又需要紧急开胸手术， 拆卸本发明先 用工具将固定旋钮 4转动 90度，从扁长形通孔 9中取出固定旋钮 4， 再用工具从缺口 6的斜面 10处撬开右固定板 3， 这样左固定板 1和 右固定板 3就从胸骨的两侧卸下了， 很快就完成了拆卸。

Claims

权 利 要 求 书
1、 一种快开式开胸复位固定器， 包括环抱臂， 其特征在于： 左固定板 （1) 上设有左环抱臂， 右固定板 （3) 上对应设有右环抱臂， 左固定板 （1) 上和右 固定板 （3) 上中间设有扁长形通孔 （9)， 扁长形通孔 （9) 中安装有固定旋钮
(4)， 左固定板 （1) 的两端头各设有一个挡块 （2)， 左固定板 （1) 上两环抱 臂之间一侧设有搭扣 （7)， 另一侧设有挡块 （11)， 右固定板 （3) 上两环抱臂 之间对应左固定板 （1) 的挡块 （11) 处设有缺口 （6)， 缺口 （6) 设有向内的 斜面 （10)， 右固定板 （3) 上扁长形通孔 （9) 的长边一侧设有两个凸起 （5)。
2、 根据权利要求 1所述的快开式开胸复位固定器， 其特征在于所述的固定 旋钮 （4) 是工字形状， 上下两块板之间的距离等于或者大于左固定板 （1) 和 右固定板 （3) 的厚度之和。
3、 根据权利要求 1或 2所述的快开式开胸复位固定器， 其特征在于所述的 固定旋钮 （4) 的中间设有孔 （8)， ？ L (8) 是通孔或者盲孔。
4、根据权利要求 3所述的快开式开胸复位固定器，其特征在于所述的孔（8) 的形状是长方形或者方形或者椭圆形。
5、 根据权利要求 1所述的快开式开胸复位固定器， 其特征在于所述的左固 定板 （1) 上的左环抱臂和右固定板 （3) 上对应的右环抱臂至少有两组。
PCT/CN2013/076923 2012-06-11 2013-06-07 快开式开胸复位固定器 WO2013185566A1 (zh)

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CN102727294B (zh) * 2012-06-11 2014-09-03 兰州西脉记忆合金股份有限公司 快开式开胸复位固定器
CN108523976A (zh) * 2018-05-07 2018-09-14 何凤璞 一种胸骨固定器

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CN102327145A (zh) * 2011-07-08 2012-01-25 西安康拓医疗技术有限公司 外科手术用斜直柄胸骨固定器
CN102727294A (zh) * 2012-06-11 2012-10-17 兰州西脉记忆合金股份有限公司 快开式开胸复位固定器
CN202723959U (zh) * 2012-06-11 2013-02-13 兰州西脉记忆合金股份有限公司 快开式开胸复位固定器

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