CN102772240B - Intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device - Google Patents

Intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device Download PDF

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Publication number
CN102772240B
CN102772240B CN 201210298288 CN201210298288A CN102772240B CN 102772240 B CN102772240 B CN 102772240B CN 201210298288 CN201210298288 CN 201210298288 CN 201210298288 A CN201210298288 A CN 201210298288A CN 102772240 B CN102772240 B CN 102772240B
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present invention
expansion
fork
fixation
body
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CN 201210298288
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Chinese (zh)
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CN102772240A (en
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徐永清
吴一芃
李川
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徐永清
吴一芃
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Abstract

本发明公开了一种骨内自复形高效骨折复位与固定装置,包括本体、扩张叉,所述的本体两侧分别设置扩张叉,并以记忆合金材料制作。 The present invention discloses a complex formed from the high A bone fracture fixation device and comprising a body, expanding fork, are provided on both sides of the body of the expansion forks, and to memory alloy material. 本发明采用镍钛记忆合金材料制作,根据材料在0℃~40℃范围内产生记忆形变的特性,并结合人体工程学优化设计。 The present invention employs a Nitinol alloy material, in accordance with the deformation characteristics of the material produced in a range of memory 0 ℃ ~ 40 ℃, with ergonomics and design optimization. 使用时,本发明在0℃~5℃的冰盐水中,使其两个扩张叉闭合,钻孔后从骨折结节处置入舟骨中,用40℃的热盐水湿敷于固定装置上,利用镍钛记忆合金板材马氏效应产生动态加压力,加压自然、柔和,使器、骨融为一体,稳固可靠,有利于加压复位和骨折固定。 In use, the present invention in an ice-salt 0 ℃ ~ 5 ℃, the two expansion forks so closed, after drilling the disposal from the scaphoid tubercle fractures, with hot brine 40 ℃ wet-laid on the fixing means, the use of nitinol sheet plus dynamic pressure effect produced Martens, pressurized natural, soft, so that, a bone integrated, stable and reliable, the pressure reduction and facilitate fracture fixation. 本发明适用广泛,尤其适合于舟骨骨折的复位与固定,内固定后无需外固定,操作简便,又可避免术后感染,有利于患者术后早期活动和腕关节功能的恢复。 The present invention is widely applicable, especially for the reduction and fixation of scaphoid fractures after internal fixation without external fixation, easy to operate and avoid postoperative infection, conducive to the restoration of early postoperative activities and wrist function.

Description

一种骨内自复形高效骨折复位与固定装置 Since the Complex A bone fracture reduction and fixation means efficient

技术领域 FIELD

[0001] 本发明属于医疗器械技术领域,进一步属于骨科器械技术领域,具体涉及一种用于骨折融合固定,尤其适合于腕舟骨骨折复位与固定的骨内自复形高效骨折复位与固定装置。 [0001] The present invention belongs to the technical field of medical devices, orthopedics technical field belonging to the further devices, and particularly relates to a self-fixing complex shaped bone fracture reduction and fixation efficient means for the fusion of fracture fixation, especially suitable for scaphoid fractures .

背景技术 Background technique

[0002] 骨折是人体遭受伤害时常发生的情况,骨折复位固定是最常用的医疗手段。 [0002] fractures are frequent cases of human suffering injuries, fracture fixation is the most common medical treatment. 手腕是人类最灵活的功能部位,腕骨是由多块不同结构的骨块结合而成,结构十分复杂。 Wrist most flexible human functional sites, carpal bone is composed of a plurality of different bonded structure, the structure is very complicated. 一旦受到伤害,其复位固定要比其他部位的骨折复位难度要大。 Once hurt, that fixation of fractures than other parts of the larger difficulty. 现有技术的复位一般采用克氏针、固定钢板等复位固定腕骨骨折部位,由于这些器械固定对腕骨间关节部位没有加压作用,术后需较长时间的外固定,给患者的术后功能恢复造成一定的影响,即恢复较慢。 Reset prior art generally Kirschner wire, steel and other fixed wrist fracture fixation site, since the fixing of these instruments intercarpal joints without pressing action, a longer time is required after external fixation, a postoperative patient recovery have been affected, that is, slow recovery. 而且钢板螺钉固定要在较小的腕骨上钻孔,操作复杂,增加手术创伤,影响关节功能,特别对于腕舟骨的固定,术后可能出现疼痛和伤口感染等并发症,对腕关节的术后恢复极为不利。 And on the plate and screws for drilling small wrist, complicated operation, increased surgical trauma, joint function impact, especially for fixing the scaphoid, postoperative pain and wound complications may occur infection, surgery on the wrist after the recovery is extremely unfavorable. 因此,研发一种有利于患者术后早期活动和腕关节功能的恢复,操作简便,又可以避免感染的骨折内固定装置非常重要,是克服现有技术缺陷的最佳方式。 Therefore, the development of an environment conducive to recovery and postoperative early mobilization of the wrist function, easy operation, and also avoid infection in the fracture fixation device is very important, is the best way to overcome the defects of the prior art. 发明内容 SUMMARY

[0003] 本发明的目的在于提供一种结构简单,手术操作简便,有利于患者术后早期活动和腕关节功能的恢复,又可避免感染的骨内自复形高效骨折复位与固定装置。 [0003] The object of the present invention is to provide a simple structure, the operation is simple, help restore early postoperative events and wrist function and avoid fracture efficient since the complex formed with the fixation device within the bone infection.

[0004] 本发明的目的是这样实现的,包括本体、扩张叉,所述的本体两侧分别设置扩张叉,并以记忆合金材料制作。 [0004] The object of the present invention is implemented, it comprises a body, expanding fork, are provided on both sides of the body of the expansion forks, and to memory alloy material.

[0005] 本发明采用镍钛记忆合金材料制作,根据材料在0°C~40°C范围内产生记忆形变的特性,并结合人体工程学优化设计。 [0005] The present invention employs a Nitinol alloy material, in accordance with the deformation characteristics of the material produced in the memory of 0 ° C ~ 40 ° C range, with ergonomics and design optimization. 使用时,本发明在0°c飞。 In use, the present invention is to fly at 0 ° c. C的冰盐水中,使其两个扩张叉闭合,钻孔后从骨折结节处置入舟骨中,用40°c的热盐水湿敷于固定装置上,利用镍钛记忆合金板材马氏效应产生动态加压力,加压自然、柔和,使器、骨融为一体,稳固可靠,有利于加压复位和骨折固定。 C in an ice brine, so two forks expansion closed, after drilling the disposal of the scaphoid tubercle fractures, washed with brine 40 ° c wet heat to the fixing means, the use of nitinol sheet Markov effect produced plus dynamic pressure, pressurized natural, soft, so that, a bone integrated, stable and reliable, the pressure reduction and facilitate fracture fixation. 本发明结构简单,制作成本低廉。 The present invention is of simple structure and low manufacturing cost. 适用范围广泛,尤其适合于舟骨骨折的复位与固定,内固定后无需外固定,操作简便,又可避免术后感染,有利于患者术后早期活动和腕关节功能的恢复。 Broad scope of application, especially for the reduction and fixation of scaphoid fractures after internal fixation without external fixation, easy to operate and avoid postoperative infection, conducive to the restoration of early postoperative activities and wrist function.

附图说明 BRIEF DESCRIPTION

[0006] 图1为本发明整体结构示意图; [0006] Fig 1 a schematic view of the overall structure of the present invention;

[0007] 图2为本发明另一实施方式结构示意图; [0007] FIG. 2 is a schematic structural view of another embodiment of the invention;

[0008] 图3为本发明第三实施方式结构示意图; [0008] FIG. 3 schematically the structure of a third embodiment of the present invention;

[0009] 图4为本发明第四实施方式结构示意图; [0009] Fig 4 a schematic structural view of the fourth embodiment of the present invention;

[0010] 图5为本发明第五实施方式结构示意图; [0010] FIG. 5 schematic structural view of a fifth embodiment of the present invention;

[0011] 图6为本发明第六实施方式结构示意图。 [0011] FIG 6 schematic structural view of a sixth embodiment of the present invention. [0012] 图中:1-本体,2-扩张叉,21-勾形结构,22-齿形结构,211-锯齿形结构,3-固定齿,4-副扩张叉。 [0012] FIG: 1 - body, 2-expanding fork, hook-shaped structure 21, 22- tooth structure, 211- zigzag structure, fixed teeth 3-, 4- vice expansion forks.

具体实施方式 Detailed ways

[0013] 下面结合附图对发明作进一步说明,但不以任何方式对本发明加以限制,基于本发明教导所作的任何变换,均落入本发明的保护范围。 [0013] below with reference to the drawings The invention is further described, but not in any way to limit the present invention, any conversion made based on the teachings of the present invention, it falls within the scope of the present invention.

[0014] 如图1所示:本使用新型包括本体1、扩张叉2,所述的本体I两侧分别设置扩张叉2,并以记忆合金材料制作。 [0014] Figure 1: The use of new memory alloy material comprises a body 1, the expansion of the fork 2, the body of the expansion forks are provided on both sides of I 2, and.

[0015] 所述的扩张叉2为对称结构,对称体之间圆弧形过渡连接。 Expansion [0015] The fork 2 to be symmetrical, symmetrical arcuate transition between the connecting member.

[0016] 图2示出本发明另一种实施方式的结构,所述的扩张叉2前端外侧设置勾形结构21。 [0016] FIG. 2 shows the structure of another embodiment of the present invention, the expansion fork 2 provided outside the front end of the hook-shaped structure 21.

[0017] 图3示出本发明第三种实施方式的结构,所述的扩张叉2外侧前部设置齿形结构22。 [0017] FIG. 3 shows the structure of a third embodiment of the present invention, the expansion portion of the front fork 2 outer toothed element 22 is provided.

[0018] 图4示出本发明第四种实施方式的结构,所述的扩张叉2外侧后部设置副扩张叉 [0018] FIG. 4 shows the structure of a fourth embodiment of the present invention, the expansion of the rear fork 2 provided outside the sub-expansion forks

4。 4. 副扩张叉4有助于配合主扩张叉起到更好固定作用。 Vice expansion fork 4 help with the main expansion fork play a better fixation.

[0019] 图5示出本发明第五种实施方式的结构,所述的扩张叉2外侧后部靠近本体I处设置固定齿3。 [0019] FIG. 5 shows the structure of a fifth embodiment of the present invention, the expansion rear fork 2 provided at the outer side near the body of the fixed teeth I 3. 该方式有助于辅助配合扩张叉起到固定作用 This approach helps assist with the expansion of fork play a fixed role

[0020] 图6示出本发明第六种实施方式的结构,所述的勾形结构21上设置锯齿形结构211。 [0020] FIG. 6 shows the structure of a sixth embodiment of the present invention, provided on the sawtooth-shaped structure 211 of the hook-shaped structure 21. 有利于勾形结构部分更好起到支撑固定作用,避免出现打滑现象。 Hook-shaped structure is conducive to better play a supporting part fixed role, to avoid slipping.

[0021] 所述的本体I的厚度为2~5mm。 [0021] The thickness of the body I is 2 ~ 5mm.

[0022] 所述的本体I中部为镂空结构,可以有效地减轻重量,又有利于塑性变形,适合于小孔大膨胀力的使用情形。 [0022] In the case of using the central part of the body I hollow structure, can effectively reduce the weight, but also conducive to plastic deformation, it is suitable for large aperture swelling force.

[0023] 所述扩张叉2的开口角度为10°~25°,优化为15°。 [0023] The opening angle of expandable fork 2 is 10 ° ~ 25 °, optimized for 15 °.

[0024] 所述的扩张叉2的厚度为I~5mm。 [0024] The expansion of the fork 2 has a thickness of I ~ 5mm.

[0025] 所述的本体I中部宽度为扩张叉2完全展开时宽度的1/3~2/3。 [0025] When the width of the middle of the width of the body I is fully deployed expandable fork 2 1/3 to 2/3.

[0026] 本发明采用镍钛记忆合金材料制作,其他具有复形特性的记忆合金材料同样可以实现本发明的目的。 [0026] The present invention employs a Nitinol alloy material, other materials having a complex shape memory alloy properties the same purposes of the present invention can be achieved.

[0027]下面以腕舟骨骨折固定为例说明本发明的工作原理与工作过程: [0027] In the following an example scaphoid fracture fixation operation principle of the present invention and the working process:

[0028] 根据材料在0° C至40° C温度范围内产生记忆形变的特性,利用变化过程中产生的动态加压力来复位,固定腕骨,避免患者创口感染,利于患者腕关节的功能恢复。 [0028] The material at 0 ° C to characteristic generating memory deformation 40 ° C temperature temperature range, dynamic applied pressure changes generated during reset, fixed wrist, to avoid the patient wound infection, facilitate wrist functional recovery of patients. 本发明扩张叉、齿钩及其特殊角度的设计更有利于骨折复位与固定,有利于患者术后早期活动。 Expansion of the present invention, the fork, and a special hook angle tooth design is more conducive to fracture reduction and fixation is conducive to early postoperative events.

[0029] 使用本发明时,首先放入在0°至5° C的冰盐水中使本发明内固定装置软化,将内固定装置的扩张叉收拢闭合,以方便插入舟骨结节处打好的固定孔中,内固定装置植入舟骨中后,用40°C的热盐水湿敷内固定装置,内固定装置形态恢复过程中所产生的恢复力自然将骨折块聚合成一体。 [0029] When using the present invention, first placed in the fixture softening present invention iced saline 0 ° to 5 ° C manipulation of the fixation device within the expandable fork folded closed to facilitate insertion lay scaphoid tubercle after the fixing hole, the implant fixture scaphoid, treated with saline of 40 ° C wet heat fixation means, the restoring force generated during recovery of the fracture fixation apparatus according to the nature of the polymerization integral block. 扩张叉上的齿钩将加压以防止两骨折端分离或移位。 The teeth on the hook in order to prevent the expansion of the pressurized two fork fracture separation or displacement. 无需如现有技术固定装置那样借助外力或外加部件进行固定,避免对骨折部位造成二次损伤而引起感染,影响患者的康复。 Without external force or external means as prior art fixing member fixing means, to avoid secondary damage to the fracture site and cause infection, affecting the rehabilitation of patients.

Claims (3)

1.一种骨内自复形腕关节高效骨折复位与固定装置,包括本体(1)、扩张叉(2),其特征是:所述的本体(1)两侧分别设置扩张叉(2),并以记忆合金材料制作;所述的扩张叉(2)为对称结构,对称体之间圆弧形过渡连接;扩张叉(2)前端外侧设置勾形结构(21),扩张叉(2)外侧后部设置副扩张叉(4)。 1. A self-complex within the carpal bones and joints with high fracture fixation device, comprising a body (1), the expansion of the fork (2), characterized in that: said main body (1) are provided on both sides of the expansion forks (2) and to memory alloy material; the expansion fork (2) to be symmetrical, symmetrical arcuate transition between the connecting member; expandable fork (2) provided outside the front end of the hook-shaped structure (21), the expansion of the fork (2) a rear sub-set expanded outer forks (4).
2.根据权利要求1所述的骨内自复形腕关节高效骨折复位与固定装置,其特征是:所述的扩张叉(2 )外侧前部设置齿形结构(22 )。 Complex from the carpal bones and joints according to claim 1 with high fracture fixation device, wherein: said expansion fork (2) is provided outside of the front portion of the tooth structure (22).
3.根据权利要求1所述的骨内自复形腕关节高效骨折复位与固定装置,其特征是:所述的勾形结构(21)上设置锯齿形结构(211)。 3. Complex according to claim wrist from bone fractures according to an efficient fixing means, characterized in that: said hook-shaped structure (21) disposed zigzag structure (211) on.
CN 201210298288 2012-08-21 2012-08-21 Intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device CN102772240B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2205186Y (en) 1994-05-06 1995-08-16 湖南医科大学附属湘雅医院 Double flat intramedullary nail system
CN2206095Y (en) 1994-12-28 1995-08-30 李建民 Combined self-locking rotating intramedullary pin
FR2846545B1 (en) 2002-10-30 2005-09-09 Bouali Amara osteosynthesis with intramedullary implant

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2884406B1 (en) * 2005-04-14 2008-10-17 Memometal Technologies Soc Par Device of intramedullary nail two bone parts, in particular of the hand and / or foot
FR2913876B1 (en) * 2007-03-20 2009-06-05 Memometal Technologies Soc Par Osteosynthesis device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2205186Y (en) 1994-05-06 1995-08-16 湖南医科大学附属湘雅医院 Double flat intramedullary nail system
CN2206095Y (en) 1994-12-28 1995-08-30 李建民 Combined self-locking rotating intramedullary pin
FR2846545B1 (en) 2002-10-30 2005-09-09 Bouali Amara osteosynthesis with intramedullary implant

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