CN104173098A - Intramedullary nail used for implanting in humerus bone marrow cavity - Google Patents

Intramedullary nail used for implanting in humerus bone marrow cavity Download PDF

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Publication number
CN104173098A
CN104173098A CN 201410386251 CN201410386251A CN104173098A CN 104173098 A CN104173098 A CN 104173098A CN 201410386251 CN201410386251 CN 201410386251 CN 201410386251 A CN201410386251 A CN 201410386251A CN 104173098 A CN104173098 A CN 104173098A
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CN
China
Prior art keywords
nail
hole
humerus
angle
aperture
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CN 201410386251
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Chinese (zh)
Inventor
吴晓明
王浩
秦宗俊
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上海市第一人民医院
常州奥斯迈医疗器械有限公司
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Priority to CN 201410386251 priority Critical patent/CN104173098A/en
Publication of CN104173098A publication Critical patent/CN104173098A/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72Intramedullary pins, nails or other devices
    • A61B17/7233Intramedullary pins, nails or other devices with special means of locking the nail to the bone

Abstract

The invention relates to an intramedullary nail used for implanting in a humerus bone marrow cavity and used for implanting in a humerus bone marrow cavity from a humerus top cartilage layer. The intramedullary nail comprises a nail body; the nail body is provided with a proximal end nail section and a remote end nail section connected with the proximal end; a plurality of locking holes distributed at different angles in the circumferential direction of the proximal end nail section are formed in the proximal end nail section; a power hole and a static force hole distributed at different angles in the circumferential direction of the remote end nail section are formed in the remote end nail section. The intramedullary nail can improve the stability of a bone fracture broken end, efficiently reduce stress of the remote end free end, and efficiently prevent the risk that an one-sided cortex fixed lock nail is retreated.

Description

用于植入肱骨骨髓腔的髓内钉 Humerus bone cavity for implantation of intramedullary nail

技术领域 FIELD

[0001] 本发明涉及一种用于植入肱骨骨髓腔的髓内钉,属于医疗器械领域。 [0001] The present invention relates to an intramedullary nail for implantation of a bone marrow cavity of the humerus, belonging to the field of medical devices.

背景技术 Background technique

[0002] 肱骨近端骨折是临床中常见的骨折之一,由于其类型复杂,愈合较差,已成为创伤骨科治疗中的难点。 [0002] Fractures of the proximal humerus fracture is a common, due to its complex types, poor healing, has become difficult orthopedic trauma therapy. 一般而言,肱骨近端I部骨折和2部轻度移位骨折多采用三角巾及石膏托悬架的保守治疗方式;2部重度移位、3部、4部骨折多行内固定手术治疗。 Generally, proximal humerus fractures I and two minor fractures more conservative treatment bandage and plaster suspension; 2 severe shift, three, four multi-line fracture fixation surgery.

[0003]目前,内固定手术主要采用钢板和髓内钉,众所周知,钢板其固定方式为偏心固定,其放置在骨折端张力带位置,所以对钢板本身的抗弯扭能力要求很高,临床中,尤其在肱骨距没有达到理想的复位时,行钢板内固定后出现断板的概率较高,而髓内钉是经皮植入骨髓腔已达到固定骨折的目的,其属于中轴固定,抗弯扭能力要远远大于钢板,但是,传统髓内钉存在以下缺陷:a)单一角度放置锁钉,骨折断端易发生移位;b)髓内钉与锁钉之间没有形成锁定机制,尤其在干骺端的锁钉易退出;c)远端自由端应力集中,易造成髓内钉断裂和医源性骨折的发生。 [0003] Currently, mainly internal fixation plates and intramedullary nail is known, is an eccentric plate which is fixedly secured, placed in tension with the fracture position, so the ability to resist bending and twisting of the steel sheet itself demanding, clinical after fixation occur within, especially when the humerus from satisfactory from the reset, off-line high probability steel plate, the nail is percutaneously implantable bone marrow cavity has the purpose of fracture fixation, which belongs to the fixed axis, anti- bending and torsion capacity much greater than the steel, however, has the following defects conventional intramedullary nail: a) a single locking screw placed at an angle, displacement prone to fracture fragments; b) is not formed between the locking mechanism of the intramedullary nail and nail, Especially in the metaphysis nail easily exit; c) a free end distal stress concentration easily causes the occurrence of an intramedullary nail breakage and iatrogenic fractures.

发明内容 SUMMARY

[0004] 本发明的目的是克服现有技术存在的缺陷,提供一种能提高骨折断端稳定性、有效降低远端自由端应力的用于植入肱骨骨髓腔的髓内钉,且其还能有效防止单侧皮质固定的锁钉退出风险。 [0004] The object of the present invention is to overcome the drawbacks of the prior art, to provide a improved stability of the fracture site, reduce the free distal end of an intramedullary nail for implantation stress humeral marrow cavity, and further can effectively prevent unilateral cortical fixed nail exit risk.

[0005] 本发明解决其技术问题所采用的技术方案是:一种用于植入肱骨骨髓腔的髓内钉,用于从肱骨头顶点软骨层置入肱骨的骨髓腔内,其包括钉体,该钉体具有一近端钉段和一与近端钉段相连的远端钉段,在所述近端钉段上设置有若干沿其周向不同角度分布的锁定孔,在所述远端钉段上设置有沿其周向不同角度分布的动力孔和静力孔。 [0005] aspect of the present invention to solve the technical problem is that: an implantable humeral intramedullary nail for bone marrow cavity, for insertion into the medullary cavity of the humerus from the apex of the humerus cartilage, which includes a staple body the nail body having a proximal section and a distal nail section staple a section connected to the proximal end of the nail, the nail on the proximal section is provided with a plurality of locking holes distributed along its periphery to a different angle, the far provided with a hole along its circumferential distribution of power to the different angles and static nail hole on the end section.

[0006] 所述锁定孔设置有四个,分别为前方孔、小结节孔、后方孔和肱骨矩孔,所述前方孔的角度为顺时针0°〜25。 [0006] The locking is provided with four holes, respectively, in front of the hole, the hole nodules, and humerus rectangular hole behind the hole, in front of the aperture angle clockwise 0 ° ~25. ,小结节孔的角度为顺时针90°,后方孔的角度为逆时针45°〜65°,肱骨矩孔的角度为顺时针10°〜40°,且肱骨矩孔与钉体的纵轴线的夹角α为75° 〜85°。 , The angle of aperture nodules clockwise 90 °, angle of the rear hole is counterclockwise 45 ° ~65 °, the angle of humeral rectangular aperture clockwise 10 ° ~40 °, and the longitudinal axis of the humerus and nail hole rectangular body the angle α of 75 ° ~85 °.

[0007] 所述动力孔的角度为顺时针5°〜20°,所述静力孔的角度为0°。 The angle of [0007] holes power clockwise 5 ° ~20 °, the aperture angle of static 0 °.

[0008] 所述锁定孔设置有四个,分别为前方孔、小结节孔、后方孔和肱骨矩孔,所述前方孔的角度为逆时针0°〜25°,所述小结节孔的角度为逆时针90°,所述后方孔的角度为顺时针45°〜65°,所述肱骨矩孔的角度为逆时针10°〜40°,且肱骨矩孔与钉体的纵轴线的夹角α为75°〜85°。 [0008] The locking is provided with four holes, respectively, in front of the hole, the hole nodules, and humerus rectangular hole behind the hole, in front of the hole is counterclockwise angle 0 ° ~25 °, the aperture nodules counterclockwise angle of 90 °, the aperture angle of the rear clockwise 45 ° ~65 °, the humerus rectangular aperture angle counterclockwise 10 ° ~40 °, and the longitudinal axis of the rectangular aperture humeral nail body angle α of 75 ° ~85 °.

[0009] 所述动力孔的角度为逆时针5°〜20°,所述静力孔的角度为0°。 [0009] The aperture angle of the power counterclockwise 5 ° ~20 °, the aperture angle of static 0 °.

[0010] 所述锁定孔为螺纹孔。 [0010] The locking hole is a threaded hole.

[0011] 所述远端钉段上设置有若干沿其轴向延伸的开叉槽,这些开叉槽沿其周向环形均布。 [0011] The nail is provided on the distal segment has a plurality of grooves along their axially extending slit, the slit grooves to the annular uniform along its circumference.

[0012] 所述近端钉段的端面上设置有中心孔,在该中心孔内壁的中下部设置有螺纹,在所述近端钉段的端面上还设置有至少一个定位槽。 [0012] The proximal end face of the nail section is provided with a central hole, provided with a thread in the lower inner wall of the central bore, the end surface of the proximal nail section is further provided with at least one positioning slot.

[0013] 所述近端钉段与远端钉段同轴,且锥形过渡。 [0013] the proximal nail section and distal nail section coaxially, and a tapered transition.

[0014] 有益效果:a)本产品通过近端若干锁定孔多平面、多角度设计,远端两孔成角设计,提高了髓内钉系统的自身稳定性,从而提高骨折断端的稳定性山)近端用于植入肱骨近端松质骨内的锁定孔采用螺纹设计,即锁钉与髓内钉之间通过螺纹旋和,能有效防止单侧皮质固定的锁钉退出风险;c)远端自由端开叉设计,降低了远端自由端应力,有效降低了髓内钉断裂和医源性骨折的风险。 [0014] The beneficial effects: a) The product of several locking holes through the proximal end of a multi-plane, multi-angle design, the distal end into two holes angle design to improve the shelf stability of the intramedullary nail system, to enhance the stability of the fracture site Hill) a proximal end for implantation by using threaded locking hole and can prevent one-sided nail exit cortical fixed risk between thread design, i.e., nail and nail in the cancellous bone of the proximal humerus; C ) distal the free end of the split design, reduces stress free distal ends, effectively reduces the risk of fracture and intramedullary nail iatrogenic fractures.

附图说明 BRIEF DESCRIPTION

[0015] 下面结合附图和具体实施方式对本发明作进一步详细的说明。 [0015] The present invention will be further described in detail in conjunction with accompanying drawings and specific embodiments.

[0016] 图1是本发明的优选实施例二的立体结构示意图; [0016] FIG. 1 is a perspective schematic structural diagram according to a second preferred embodiment of the present invention;

[0017] 图2是本发明的优选实施例一的主视结构示意图; [0017] FIG. 2 is a front view showing a configuration example of the preferred embodiment of the present invention;

[0018] 图3是图2的左视放大图; [0018] FIG. 3 is an enlarged left side view of FIG 2 FIG;

[0019] 图4是优选实施例一的剖视图; [0019] FIG. 4 is a sectional view of a preferred embodiment;

[0020] 图5是沿图2中AA线的放大剖视图; [0020] FIG. 5 is an enlarged cross-sectional view along the line AA in Figure 2;

[0021] 图6是沿图2中BB线的放大剖视图; [0021] FIG. 6 is an enlarged sectional view taken along line BB;

[0022] 图7是沿图2中CC线的放大剖视图; [0022] FIG. 7 is an enlarged cross-sectional view along the line CC in Figure 2;

[0023] 图8是沿图3中DD线的放大剖视图; [0023] FIG. 8 is an enlarged cross-sectional view along line DD in Figure 3;

[0024] 图9是沿图2中EE线的放大剖视图; [0024] FIG. 9 is an enlarged sectional view taken along line EE of FIG 2;

[0025] 图10是沿图2中FF线的放大剖视图; [0025] FIG. 10 is an enlarged sectional view taken along line FF of FIG 2;

[0026] 图11是沿图2中GG线的放大剖视图; [0026] FIG. 11 is an enlarged sectional view taken along line GG in FIG 2;

[0027] 图12是本发明的优选实施例二的结构示意图; [0027] FIG. 12 is a schematic structural diagram according to a second preferred embodiment of the present invention;

[0028] 图13是图12的左视放大图; [0028] FIG. 13 is an enlarged view of the left view of Figure 12;

[0029] 图14是优选实施例二的剖视图; [0029] FIG. 14 is a sectional view according to a second preferred embodiment;

[0030] 图15是沿图12中AA线的放大剖视图; [0030] FIG. 15 is an enlarged cross-sectional view 12 taken along line AA;

[0031] 图16是沿图12中BB线的放大剖视图; [0031] FIG. 16 is an enlarged cross-sectional view 12 taken along line BB;

[0032] 图17是沿图12中CC线的放大剖视图; [0032] FIG. 17 is an enlarged cross-sectional view along the line 12 in FIG CC;

[0033] 图18是沿图13中DD线的放大剖视图; [0033] FIG. 18 is an enlarged cross-sectional view 13 taken along line DD;

[0034] 图19是沿图12中EE线的放大剖视图; [0034] FIG. 19 is an enlarged cross-sectional view along the line 12 in FIG EE;

[0035] 图20是沿图12中FF线的放大剖视图; [0035] FIG. 20 is an enlarged cross-sectional view along the line 12 in FIG FF;

[0036] 图21是沿图12中GG线的放大剖视图。 [0036] FIG. 21 is an enlarged cross-sectional view taken along line GG 12 in FIG.

具体实施方式 Detailed ways

[0037] 如图1所示的一种用于植入肱骨骨髓腔的髓内钉,用于从肱骨头顶点软骨层置入肱骨的骨髓腔内,其包括钉体1,该钉体I具有一近端钉段和一与近端钉段相连的远端钉段,所述近端钉段与远端钉段同轴,且锥形过渡。 [0037] FIG marrow cavity of the humerus for implantation of the intramedullary nail 1 as shown, for insertion into the medullary cavity of the humerus from the apex of the humerus cartilage, which comprises a nail body 1, the staple member having I a proximal nail section and distal nail section is connected to a proximal end of the nail section, the proximal section coaxial with the distal nail section staples, and the conical transition.

[0038] 在所述近端钉段上设置有若干沿其周向不同角度分布的锁定孔2、3、4、5,所述锁定孔2、3、4、5为螺纹孔。 [0038] disposed on the proximal nail section has a plurality of locking holes in different angles 2,3,4,5 distributed along its circumference, the locking hole is a screw hole, 4, 5. 在所述远端钉段上设置有沿其周向不同角度分布的动力孔6和静力孔7。 6 and is provided with a hole 7 in the dynamic hydrostatic pore distribution thereof to different circumferential angle in the distal section of the staple.

[0039] 本髓内钉根据人体肱骨解剖形态有左、右之分,在这里命名为左髓内钉和右髓内钉。 [0039] The present intramedullary nail with left and right points humeral anatomy of the human body, here designated as the left and right of the intramedullary nail of the intramedullary nail.

[0040] 优选实施例一为左髓内钉:如图2〜10所示,所述锁定孔2、3、4、5设置有四个,分别为前方孔2、小结节孔3、后方孔4和肱骨矩孔5。 [0040] a preferred embodiment of the intramedullary nail to the left: FIG. 2~10 shown, the locking aperture is provided with four, five, respectively, in front of the hole 2, the hole 3 nodules, rear humerus rectangular holes 4 and 5 holes. 所述前方孔2的角度为顺时针0°〜25°,优先选用10° ;小结节孔3的角度为顺时针90° ;后方孔4的角度为逆时针45°〜65°,优先选用55° ;肱骨矩孔5的角度为顺时针10°〜40°,优先选用25°,且肱骨矩孔5的中心轴线51与钉体I的纵轴线11的夹角α为75°〜85°,优先选用81°。 The front aperture angle 2 clockwise 0 ° ~25 °, preferred 10 °; angle nodules hole 3 clockwise 90 °; angle of the rear hole 4 counterclockwise 45 ° ~65 °, preferred 55 °; angle of humeral rectangular aperture 5 is clockwise 10 ° ~40 °, preferred 25 °, and the axis of the humerus central rectangular aperture 51 and the longitudinal axis of the nail body 5 I angle α 11 to 75 ° ~85 ° , preferred 81 °. 所述动力孔6的角度为顺时针5°〜20°,优先选用15°〜20°,特别是18° ;所述静力孔7的角度为0°。 The angular momentum hole 6 clockwise 5 ° ~20 °, preferred 15 ° ~20 °, especially 18 °; the angle of static hole 7 is 0 °. 除肱骨矩孔5外,其余所有孔的中心轴线均与钉体I的纵轴线11垂直。 In addition to the humerus rectangular aperture 5, the central axes of all the remaining holes 11 are perpendicular to the longitudinal axis I of the staple body.

[0041] 优选实施例二为右髓内钉:如图11〜19所示,所述锁定孔2、3、4、5设置有四个,分别为前方孔2、小结节孔3、后方孔4和肱骨矩孔5。 [0041] Preferred embodiments according to the second to the right of the intramedullary nail: FIG 11~19 shown, the locking aperture is provided with four, five, respectively, in front of the hole 2, the hole 3 nodules, rear humerus rectangular holes 4 and 5 holes. 所述前方孔2的角度为逆时针0°〜25°优先选用10° ;所述小结节孔3的角度为逆时针90° ;所述后方孔4的角度为顺时针45°〜65°,优先选用55° ;所述肱骨矩孔5的角度为逆时针10°〜40°,优先选用25°,且肱骨矩孔5的中心轴线51与钉体I的纵轴线11的夹角α为75°〜85°,优先选用81°。 The front aperture angle 2 is counterclockwise 0 ° ~25 ° preferred 10 °; angle of the hole 3 nodules counterclockwise 90 °; the angle of a rear aperture 4 is clockwise 45 ° ~65 ° , preferred 55 °; the angle of humeral rectangular hole 5 counterclockwise 10 ° ~40 °, preferred 25 °, and the longitudinal axis of the rectangular aperture humeral nail 51 and the central axis of the body 5 I angle α 11 is 75 ° ~85 °, preferred 81 °. 所述动力孔6的角度为逆时针5°〜20°,优先选用15°〜20°,特别是18° ;所述静力孔7的角度为0°。 The power angle counterclockwise hole 6 5 ° ~20 °, preferred 15 ° ~20 °, especially 18 °; the angle of static hole 7 is 0 °. 除肱骨矩孔5外,其余所有孔的中心轴线均与钉体I的纵轴线11垂直。 In addition to the humerus rectangular aperture 5, the central axes of all the remaining holes 11 are perpendicular to the longitudinal axis I of the staple body.

[0042] 所述远端钉段上设置有四条沿其轴向延伸的开叉槽8,这些开叉槽8沿其周向环形均布。 [0042] The axial direction thereof is provided with four grooves 8 extending slit distal nail section, these grooves 8 split annular circumferential direction thereof uniform.

[0043] 所述近端钉段的端面上设置有中心孔9,在该中心孔9内壁的中下部设置有螺纹,在所述近端钉段的端面上还设置有三个定位槽10。 [0043] The proximal end face of the nail section is provided with a central hole 9, provided with a thread in the lower inner wall of the central bore 9, the proximal end face of the nail segment is further provided with three positioning grooves 10.

[0044] 所述近端钉段长度为25〜50mm,优先选用30〜40mm,特别是35mm ;所述远端钉段长度为60〜I 1mm,优先选用80〜90mm,特别是85mm ;所述锥形过渡段长度为10〜50mm,优先选用20〜40mm,特别是30mm。 [0044] The length of the proximal staple 25~50mm, preferred 30~40mm, especially 35mm; length of the distal staple 60~I 1mm, preferred 80~90mm, especially 85mm; the a tapered transition section length 10~50mm, preferred 20~40mm, particularly 30mm.

[0045] 本髓内钉包括四个锁定孔,不过本领域的技术人员应当知道髓内钉可以包括任意数目的锁定孔。 [0045] This comprises four locking holes of the intramedullary nail, but those skilled in the art will appreciate that the intramedullary nail may include any number of locking holes.

[0046] 应当理解,以上所描述的具体实施例仅用于解释本发明,并不用于限定本发明。 [0046] It should be understood that the specific embodiments described above are only for explaining the present invention, not to limit the present invention. 由本发明的精神所引伸出的显而易见的变化或变动仍处于本发明的保护范围之中。 Or variations obvious variations from the spirit of the invention as a corollary still in the scope of the present invention.

Claims (9)

1.一种用于植入肱骨骨髓腔的髓内钉,用于从肱骨头顶点软骨层置入肱骨的骨髓腔内,其包括钉体(1),该钉体(I)具有一近端钉段和一与近端钉段相连的远端钉段,其特征在于:在所述近端钉段上设置有若干沿其周向不同角度分布的锁定孔(2、3、4、5),在所述远端钉段上设置有沿其周向不同角度分布的动力孔(6)和静力孔(7)。 An implantable humeral intramedullary nail for bone marrow cavity, for insertion into the medullary cavity of the humerus from the apex of the humerus cartilage, which comprises a nail body (1), the tacking member (I) having a proximal end nail section and a distal section connected to the proximal end of the nail the nail section, wherein: the locking aperture is provided with a plurality (2,3,4,5) to a different angular distribution in the circumferential direction thereof on the proximal nail section is provided with a hole along its circumferential distribution of power to the different angles (6) and Static holes (7) on the distal nail section.
2.根据权利要求1所述的用于植入肱骨骨髓腔的髓内钉,其特征在于:所述锁定孔(2、3、4、5)设置有四个,分别为前方孔(2)、小结节孔(3)、后方孔(4)和肱骨矩孔(5),所述前方孔(2)的角度为顺时针0°〜25°,小结节孔(3)的角度为顺时针90°,后方孔(4)的角度为逆时针45°〜65°,肱骨矩孔(5)的角度为顺时针10°〜40°,且肱骨矩孔(5)与钉体(I)的纵轴线(11)的夹角α为75°〜85°。 According to claim 1 for implanting intramedullary nail in the medullary cavity of the humerus, characterized in that: said locking hole (2,3,4,5) is provided with four, respectively, a front aperture (2) , the angle nodules hole (3), behind the hole (4) and humerus rectangular hole (5), said front aperture (2) is clockwise 0 ° ~25 °, angle of aperture nodules (3) is clockwise 90 °, an angle behind the hole (4) is counter-clockwise 45 ° ~65 °, the angle of humeral rectangular hole (5) is clockwise 10 ° ~40 °, and the humerus rectangular hole (5) and the staple body (I ) longitudinal axis (11) an angle α of 75 ° ~85 °.
3.根据权利要求2所述的用于植入肱骨骨髓腔的髓内钉,其特征在于:所述动力孔(6)的角度为顺时针5°〜20°,所述静力孔(7)的角度为0°。 The marrow cavity of the humerus for implantation of the intramedullary nail of claim 2, wherein: the power angle of aperture (6) is clockwise 5 ° ~20 °, the static aperture (7 ) the angle is 0 °.
4.根据权利要求1所述的用于植入肱骨骨髓腔的髓内钉,其特征在于:所述锁定孔(2、3、4、5)设置有四个,分别为前方孔(2)、小结节孔(3)、后方孔(4)和肱骨矩孔(5),所述前方孔(2)的角度为逆时针0°〜25。 According to claim 1 for implanting intramedullary nail in the medullary cavity of the humerus, characterized in that: said locking hole (2,3,4,5) is provided with four, respectively, a front aperture (2) , nodules hole (3), behind the hole (4) and humerus rectangular hole (5), in front of the hole (2) counter-clockwise angle of 0 ° ~25. ,所述小结节孔(3)的角度为逆时针90°,所述后方孔(4)的角度为顺时针45°〜65°,所述肱骨矩孔(5)的角度为逆时针10°〜40°,且肱骨矩孔(5)与钉体(I)的纵轴线(11)的夹角α为75°〜85°。 , Aperture angle of the nodules (3) is counter-clockwise 90 °, the angle of the rear hole (4) is clockwise 45 ° ~65 °, the angle of humeral rectangular hole (5) is counterclockwise 10 ° ~40 °, and the humerus rectangular hole (5) of the staple (I) is the longitudinal axis (11) an angle α of 75 ° ~85 °.
5.根据权利要求4所述的用于植入肱骨骨髓腔的髓内钉,其特征在于:所述动力孔(6)的角度为逆时针5°〜20°,所述静力孔(7)的角度为0°。 The marrow cavity of the humerus for implantation of the intramedullary nail according to claim 4, wherein: the power angle of aperture (6) is counter-clockwise 5 ° ~20 °, the static aperture (7 ) the angle is 0 °.
6.根据权利要求1所述的用于植入肱骨骨髓腔的髓内钉,其特征在于:所述锁定孔(2、3、4、5)为螺纹孔。 The marrow cavity of the humerus for implantation of the intramedullary nail of claim 1, wherein: a threaded hole of the locking aperture (2,3,4,5) is.
7.根据权利要求1所述的用于植入肱骨骨髓腔的髓内钉,其特征在于:所述远端钉段上设置有若干沿其轴向延伸的开叉槽(8),这些开叉槽(8)沿其周向环形均布。 The marrow cavity of the humerus for implantation of the intramedullary nail of claim 1, wherein: the distal nail section is provided with a plurality of axially extending slit along its slot (8), which open fork pockets (8) evenly distributed along its periphery to the ring.
8.根据权利要求1所述的用于植入肱骨骨髓腔的髓内钉,其特征在于:所述近端钉段的端面上设置有中心孔(9),在该中心孔(9)内壁的中下部设置有螺纹,在所述近端钉段的端面上还设置有至少一个定位槽(10)。 According to claim marrow cavity of the humerus for implantation of the intramedullary nail of claim 1, wherein: said proximal nail section is provided with a central hole end face (9), the inner wall of the central bore (9) in a lower portion provided with a thread, a proximal end face of the nail segment is further provided with at least one positioning groove (10).
9.根据权利要求1所述的用于植入肱骨骨髓腔的髓内钉,其特征在于:所述近端钉段与远端钉段同轴,且锥形过渡。 According to claim marrow cavity of the humerus for implantation of the intramedullary nail of claim 1, wherein: the proximal nail section coaxial with the distal nail section, and a tapered transition.
CN 201410386251 2014-08-07 2014-08-07 Intramedullary nail used for implanting in humerus bone marrow cavity CN104173098A (en)

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CN105997218A (en) * 2016-06-29 2016-10-12 江苏艾迪尔医疗科技股份有限公司 Humeral inverted intramedullary nail

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