CN102835998A - Novel internally fixing and locking bone fracture plate for curing of humerus collum chirurgicum fractures - Google Patents

Novel internally fixing and locking bone fracture plate for curing of humerus collum chirurgicum fractures Download PDF

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Publication number
CN102835998A
CN102835998A CN2012102933860A CN201210293386A CN102835998A CN 102835998 A CN102835998 A CN 102835998A CN 2012102933860 A CN2012102933860 A CN 2012102933860A CN 201210293386 A CN201210293386 A CN 201210293386A CN 102835998 A CN102835998 A CN 102835998A
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China
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locking
lower
upper
right
locking hole
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CN2012102933860A
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Chinese (zh)
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刘德俊
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苏州瑞华医院有限公司
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Priority to CN2012102933860A priority Critical patent/CN102835998A/en
Publication of CN102835998A publication Critical patent/CN102835998A/en

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Abstract

The invention discloses a novel internally fixing and locking bone fracture plate for curing of humerus collum chirurgicum fractures. The novel internally fixing and locking bone fracture plate comprises a humerus locking plate which comprises an upper plate part and a lower plate part. The upper plate part is provided with a main locking hole, an upper left locking hole, an upper right locking hole, a lower left locking hole, a lower right locking hole and ear part locking holes which are provided with threads and countersunk heads. The lower plate part is provided with a plurality of lower locking holes. A main locking screw, an upper left locking screw, an upper right locking screw, a lower left locking screw, a lower right locking screw and ear part locking screws are respectively and correspondingly arranged in the main locking hole, the upper left locking hole, the upper right locking hole, the lower left locking hole, the lower right locking hole, the ear part locking holes and the lower locking holes which are provided with full threads. A part of the main locking screw, entering the head of humerus, is provided with coarse threads. The novel internally fixing and locking bone fracture plate for the cure of the humerus collum chirurgicum fracture has the advantages of being few in used screws, small in harm in humeral operation, good in fixing effect, and especially suitable for the old who have the disease of bone rarefaction.

Description

一种治疗肱骨外科颈骨折的新型内固定锁定接骨板 A method of treating humerus surgical neck fracture fixation new locking plate

技术领域 FIELD

[0001] 本发明涉及一种肱骨外科颈骨折内固定修复装置,特别是一种适用于骨质疏松的老年人群的治疗肱骨外科颈骨折的新型内固定锁定接骨板,属于肱骨骨折固定技术领域。 [0001] The present invention relates to a fixing device fixes an in humerus surgical neck fracture, especially the novel surgical treatment of humeral neck is suitable for the elderly osteoporotic fracture fixation locking plate belonging humeral fracture fixation technical field.

背景技术 Background technique

[0002] 肱骨外科颈骨折是ー种关节内骨折,主要因间接外力所致。 [0002] humerus surgical neck fractures are ー kinds of intra-articular fracture, mainly due to indirect force due. 治疗这种骨折主要有三种方法:I.接骨板、螺钉、克氏针、2.肱骨近端锁定钢板内固定3.人工肱骨头置换术。 There are three main treatment of such fractures methods:.. I bone plates, screws, Kirschner, 2 proximal humerus head locking within the fixing plate 3. The humeral arthroplasty. 接骨板、螺钉、克氏针的稳定性能不好,只适用于简单骨折的固定;肱骨近端锁定钢板内固定简称LCP内固定,LCP内固定是使用ー种LCP锁定板将骨折的骨头连接固定,但是目前采用LCP锁定板采用角稳定性固定骨折,向肱骨头内拧入多枚螺钉,在钻孔时,对肱骨头内骨质破坏严重,会产生肱骨头空壳效应,且锁定螺钉的螺纹较浅,对肱骨头内松质骨尤其是老年人骨质疏松症患者,钉的把持力不足,稳定性欠佳,以上不足可导致术后肱骨头移位、塌陷甚至坏死吸收;人工肱骨头置换木,创伤大,并发症较多,花费大,术后可能出现松动、感染及脱位。 Bone plates, screws, Kirschner not stable only for simple fracture fixation; fixation referred to the proximal humerus locking plate fixation LCP, LCP is the use of internal fixation ー species LCP locking plate connected to a bone fracture fixation , but the currently used board with a locking angle stability LCP fracture fixation, screws screwed into the plurality humeral head, during drilling, the inside of the humeral head severe bone destruction, humeral head shell effect is generated, and the locking screw threaded shallow, especially in the elderly patients with osteoporosis, lack of cancellous bone of the humeral head within the gripping force of the nail, poor stability, but less than the humeral head may cause postoperative displacement absorbing collapse even necrosis; humeral wooden head replacement, trauma, more complications, costly, may occur after loosening, infection and dislocation.

发明内容 SUMMARY

[0003] 本发明的目的是为了克服现有技术的不足而提供一种更适用于老年人群的治疗肱骨外科颈骨折的新型内固定锁定接骨板。 [0003] The object of the present invention is to overcome the deficiencies of the prior art and to provide a more suitable for the new elderly population humeral surgical neck fractures fixed locking plate.

[0004] 为了达到上述目的,本发明采用的技术方案是:一种治疗肱骨外科颈骨折的新型内固定锁定接骨板,包含肱骨锁定板;所述肱骨锁定板包含上板部、下板部;所述上板部位于下板部的上方,上板部的右侧设置有耳部;所述上板部、下板部和耳部成一定角度形成一个与肱骨外形相似的形状,所述上板部的中部沿着中心线设置有主锁定孔;所述上板部上,在位于主锁定孔左上方、右上方、左下方和右下方的位置上,分别对应设置有左上锁定孔、右上锁定孔、左下锁定孔和右下锁定孔;所述耳部上设置有耳部锁定孔;所述下板部上沿着中心线设置有下锁定孔;所述主锁定孔、左下锁定孔、右下锁定孔、耳部锁定孔和下锁定孔均为带螺纹的沉头孔,所述沉头孔的沉头部位均位于锁定板的外表面上,所述沉头孔的螺纹位于沉头孔的通孔部;所述主锁定孔 [0004] To achieve the above object, the technical solution adopted by the invention is: a method of treating humerus novel surgical neck fracture fixation locking plate, the locking plate comprising a humerus; humeral said locking plate comprises an upper plate portion, the lower plate portion; the upper plate portion located above the lower plate portion, is provided on the right side plate portion has an ear portion; the upper plate portion, a lower plate portion and the ear portion at an angle to form a shape similar to the outer shape of the humerus, the upper along the center line of the central plate portion is provided with a main locking hole; on the upper plate portion, the locking hole in the main upper left, upper right, lower left and right positions, respectively corresponding locking hole provided with a left upper, right upper locking hole, the lower left and right locking hole a locking hole; ear portion is provided with a locking hole of the ear portion; said lower plate portion along the center line provided with a lower lock hole; the main locking aperture, the lower left locking hole, lower right locking hole, the locking hole portion and a lower lug lock hole are threaded spigot, said countersunk head portion of the spigot are located on the outer surface of the locking plate, the threaded spigot located Shen the first hole portion a through hole; the main locking aperture 、左上锁定孔、右上锁定孔、左下锁定孔、右下锁定孔、耳部锁定孔和下锁定孔中分别对应地设置有主锁定螺钉、左上锁定螺钉、右上锁定螺钉、左下锁定螺钉、右下锁定螺钉、耳部锁定螺钉和下锁定螺钉;所述主锁定螺钉、左上锁定螺钉、右上锁定螺钉、左下锁定螺钉、右下锁定螺钉、耳部锁定螺钉和下锁定螺钉的螺纹均为全螺纹;所述主锁定螺钉的螺纹在进入肱骨头的部分为粗牙螺纹。 , Upper left locking hole, the locking hole upper right, lower left locking hole, the lower right locking hole, the locking hole portion and the lower lug locking holes respectively provided with a main locking screw, a locking screw upper left, upper right locking screw, a locking screw lower left, lower right the locking screw, the locking screw and the lower ear locking screw; the main locking screw, a locking screw upper left, upper right locking screw, a locking screw lower left, lower right locking screw, the locking screw and the lower ear portion of the locking screw threads are fully threaded; the main thread of the locking screw into the head portion of the humeral coarse thread.

[0005] 优选的,所述下锁定孔有3个;所述3个下锁定孔沿中心线由上到下均匀分布在下板部上。 [0005] Preferably, the lower locking hole 3; 3 wells along the centerline of the locked evenly distributed from top to bottom on the lower plate portion.

[0006] 优选的,所述主锁定孔与左上锁定孔和右上锁定孔呈正三角形分布。 [0006] Preferably, the main locking hole and the locking hole upper left and right locking holes form an equilateral triangle distribution.

[0007] 优选的,所述主锁定孔与左下锁定孔和右下锁定孔呈正三角形分布。 [0007] Preferably, the main locking hole and the locking hole bottom left and right locking holes form an equilateral triangle distribution.

[0008] 优选的,所述左上锁定螺钉的头部向左侧偏斜;所述右上锁定螺钉的头部向右侧偏斜。 [0008] Preferably, the upper left oblique locking screw head to the left; the right upper locking head of the screw skewed to the right.

[0009] 优选的,所述左下锁定螺钉的头部向左侧偏斜;所述右下锁定螺钉的头部向右侧偏斜。 [0009] Preferably, the lower left oblique locking screw head to the left; the lower right of the locking screw head skewed to the right.

[0010] 优选的,所述上板部的周边上设置有多个缝合孔。 [0010] Preferably, the suture hole provided with a plurality of upper periphery of the plate portion.

[0011] 本发明所述的ー种治疗肱骨外科颈骨折的新型内固定锁定接骨板,依靠主锁定孔、左上锁定孔、右上锁定孔、左下锁定孔和右下锁定孔中对应的螺钉对肱骨骨折部位进行连接固定,使用的螺钉少,对肱骨的手术损伤较小;所述的主锁定孔上部的锁定螺钉和下部的锁定螺钉均形成三角分布,而且主锁定螺钉为粗牙螺纹,因此这种肱骨接骨板的角稳定性好;而且肱骨锁定板上的每个锁定孔都有螺纹与对应的锁定螺钉的螺纹相咬合,固定效果好;特别适合应用在老年人群,尤其是患有骨质疏松的老年病人。 [0011] New therapeutic ー the surgical neck of the humerus fractures of the present invention is fixed locking plate, relying on a main locking hole, the locking hole upper left, upper right locking hole, the lower left and right locking holes in the corresponding locking hole screw humeral fracture site fixed connection, use less screws, less surgical injury of the humerus; upper portion of the main locking holes of the locking screw and the locking screw are formed in a lower triangular distribution, and the primary locking screw of said coarse thread, so that good angular stability species humeral bone plate; and humerus each locking plate has a locking hole of the locking screw threaded into engagement with a corresponding thread, good fixing effect; particularly suitable for use in the elderly population, especially with bone elderly patients loose.

附图说明· BRIEF DESCRIPTION ·

[0012] 下面结合附图对本发明做进ー步说明: [0012] DRAWINGS built into ー further explanation of the invention:

附图I为本发明所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板的立体图; BRIEF I within the present invention, the novel therapeutic humerus surgical neck fracture fixation perspective view of the locking bone plate;

附图2为本发明所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板的俯视图; BRIEF 2 is a plan view of the fixed lock plate new bone within said humeral surgical neck fractures of the present invention;

附图3为本发明所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板的剖视图; 3 is a sectional view of the drawings bone plate secured within said lock new humeral surgical neck fractures of the present invention;

其中:1a、上板部;lb、下板部;lc、耳部;2、主锁定螺钉;3a、左上锁定螺钉;3b、右上锁定螺钉;3c、左下锁定螺钉;3d、右下锁定螺钉;3e、耳部锁定螺钉;4、下锁定螺钉;5、縫合孔;6、肱骨头骨折处。 Wherein: 1a, the upper plate portion; LB, the lower plate portion; LC, ear; 2, a main locking screw;. 3A, upper left locking screw; 3B, right upper locking screw;. 3C, left lower locking screw; 3D, right lower locking screw; 3E, ears locking screw; 4, the locking screw; 5, suture holes; 6, humeral head fracture.

具体实施方式 Detailed ways

[0013] 如附图1-3所示为本发明所述的ー种治疗肱骨外科颈骨折的新型内固定锁定接骨板,包含肱骨锁定板;所述肱骨锁定板包含上板部la、下板部Ib ;所述上板部Ia位于下板部Ib的上方,上板部Ia的右侧设置有耳部Ic ;所述上板部la、下板部Ib和耳部Ic成一定角度形成一个与肱骨外形相似的形状,所述上板部Ia的中部沿着中心线设置有主锁定孔;所述上板部Ia上,在位于主锁定孔左上方、右上方、左下方和右下方的位置上,分别对应设置有左上锁定孔、右上锁定孔、左下锁定孔和右下锁定孔;所述耳部Ic上设置有耳部锁定孔;所述下板部Ib上沿着中心线设置有3个下锁定孔;所述上板部Ia的周边上设置有多个缝合孔5 ;所述主锁定孔与左上锁定孔和右上锁定孔呈正三角形分布;所述主锁定孔与左下锁定孔和右下锁定孔呈正三角形分布;所述主锁定孔、左下锁定孔、 [0013] As shown in FIGS. 1-3 of the present new therapeutic ー humerus surgical neck fracture fixation locking plate, said locking plate comprises a humeral invention; humeral said locking plate comprises an upper plate portion La, the lower plate portion Ib; the upper plate portion located above the lower plate portion Ia to Ib, is provided on the right side of the plate portion has an ear portion Ia Ic; La the upper plate portion, a lower plate portion Ib and Ic ear portion is formed at an angle a with a shape similar to the shape of the humerus, the upper plate portion Ia is provided along the center line of a main central locking hole; Ia said upper plate portion, the locking hole upper left, upper right, lower left and right of the main located positions, respectively corresponding locking hole provided with a left upper, right upper locking hole, the lower left and right locking hole a locking hole; ear portion is provided with a locking hole of the ear portion Ic; upper plate portion disposed along the center line of the lower Ib have three lower lock hole; 5 is provided with a plurality of stitching holes Ia peripheral portion of the upper plate; the main locking hole and the locking hole upper left and right locking holes form an equilateral triangle distribution; the main locking hole and the locking hole and the lower left lower right equilateral triangular distribution as a locking hole; the main locking hole, the lower left locking hole, 右下锁定孔、耳部锁定孔和下锁定孔均为带螺纹的沉头孔,所述沉头孔的沉头部位均位于锁定板的外表面上,所述沉头孔的螺纹位于沉头孔的通孔部;所述主锁定孔、左上锁定孔、右上锁定孔、左下锁定孔、右下锁定孔、耳部锁定孔和下锁定孔中分别对应地设置有主锁定螺钉2、左上锁定螺钉3a、右上锁定螺钉3b、左下锁定螺钉3c、右下锁定螺钉3d、耳部锁定螺钉3e和下锁定螺钉4 ;所述左上锁定螺钉3a和左下锁定螺钉3c的头部均向左侧偏斜;所述右上锁定螺钉3b和右下锁定螺钉3d的头部均向右侧偏斜;所述左上锁定螺钉3a、右上锁定螺钉3b、左下锁定螺钉3c、右下锁定螺钉3d、耳部锁定螺钉3e和下锁定螺钉4的螺纹均为细牙的全螺纹;所述主锁定螺钉2的螺纹为全螺纹,主锁定螺钉2的螺纹在进入肱骨头的部分为粗牙螺纹。 Lower right locking hole, the locking hole portion and a lower lug lock hole are threaded spigot, said countersunk head portion of the spigot are located on the outer surface of the locking plate, the threaded spigot located Shen the first hole portion a through hole; the main locking aperture, the locking aperture upper left, upper right locking hole, the locking hole bottom left, bottom right locking hole, the locking hole portion and the lower lug locking holes respectively provided with a main locking screw 2, upper left the locking screw 3a, right upper locking screw 3b, 3c locking screw lower left, lower right locking screw 3d, 3e otic locking screw 4 and the locking screw; 3a the upper left and lower left locking screw head of the locking screw 3c are biased to the left obliquely; the right upper and right locking screw head of the locking screw 3b 3d are skewed to the right side; the left upper locking screws 3a, 3b locking screw upper right, lower left locking screw 3c, the lower right locking screw 3d, the locking lug 3e and a lower threaded locking screw are fine pitch full flight screw 4; the main locking threaded screw is full flight 2, the main screw 2 in a locking thread into the part of the humeral head coarse thread. [0014] 所述主锁定螺钉2与左上锁定螺钉3a和右上锁定螺钉3b呈等边三角形,而且主锁定螺钉2与左下锁定螺钉3c和右下锁定螺钉3d呈等边三角形将肱骨在肱骨头骨折处6连接起来,使用的螺钉少,手术损伤小;带有粗牙螺纹的主锁定螺钉2即使对于骨质较为疏松的肱骨头也可以拉紧固定,而且左上锁定螺钉3a、右上锁定螺钉3b、左下锁定螺钉3c和右下锁定螺钉3d的偏斜设置,再配合耳部锁定螺钉3e进行锁定使得整个接骨板具有更好的稳定性;肱骨接骨板上的每个锁定孔都有螺纹与对应的锁定钉相咬合,防止了每个锁定螺钉的脱落;因此特别适合应用在老年人,尤其是患有骨质疏松的老年病人。 [0014] The main locking screw 2 and 3a the upper left and right locking screw locking screw 3b form an equilateral triangle, and the primary locking screw 2 and the lower left and right locking screw 3c 3d locking screw form an equilateral triangle in the humeral head to the humeral fracture at 6 are connected, using less screws, surgical damage; coarse thread with a main locking bone screw 2 for even more loose tension humeral head may be fixed, and the upper left locking screw 3a, 3B right upper locking screw, the lower left and right locking screw 3c 3d deflection of the locking screw is provided, together with a locking screw ear portion 3e is locked so that the entire bone plate has a better stability; each humerus bone plate screw has a locking hole corresponding to locking engagement with nails, each falling preventing locking screw; therefore particularly suitable for use in the elderly, particularly elderly patients suffering from osteoporosis. [0015] 上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围内。 [0015] Examples of the above-described embodiments illustrate the technical concept and features of the invention, its object is to only allow those familiar with the art to understand the present invention and implement them, and thus does not limit the scope of the present invention, where an equivalent variations or modifications made from the spirit of the present invention, shall fall within the protection scope of the present invention.

Claims (7)

1. 一种治疗肱骨外科颈骨折的新型内固定锁定接骨板,包含肱骨锁定板;所述肱骨锁定板包含上板部(la)、下板部(Ib);所述上板部(Ia)位于下板部(Ib)的上方,上板部(Ia)的右侧设置有耳部(Ic);所述上板部(la)、下板部(Ib)和耳部(Ic)成一定角度形成ー个与肱骨外形相似的形状,其特征在于:所述上板部(Ia)的中部沿着中心线设置有主锁定孔;所述上板部(Ia)上,在位于主锁定孔左上方、右上方、左下方和右下方的位置上,分别对应设置有左上锁定孔、右上锁定孔、左下锁定孔和右下锁定孔;所述耳部(Ic)上设置有耳部锁定孔;所述下板部(Ib)上沿着中心线设置有下锁定孔;所述主锁定孔、左下锁定孔、右下锁定孔、耳部锁定孔和下锁定孔均为带螺纹的沉头孔,所述沉头孔的沉头部位均位于锁定板的外表面上,所述沉头孔的螺纹位于沉头孔的通 1. A method of treating the novel humerus surgical neck fracture fixation locking plate, the locking plate comprising a humerus; humeral said locking plate comprises an upper plate portion (La), a lower plate portion (Ib); the upper plate portion (Ia) located above the lower plate portion (Ib), the plate portion is provided on the right side (Ia) are ear portions (Ic); the upper plate portion (La), a lower plate portion (Ib) and ear (Ic) into a certain the angle formed ー a shape similar to the shape of the humerus, characterized in that: said upper central plate portion (Ia) is provided along the center line of the main locking hole; on the upper plate portion (Ia), located at the main locking hole position of the upper left, upper right, lower left and right on the corresponding locking hole provided with a left upper, right upper locking hole, the lower left and right locking hole a locking hole; ear portion is provided with a locking hole of the ear portion (Ic) ; the lower plate portion (Ib) is provided along the center line with a lower lock hole; the main locking aperture, the locking aperture lower left, lower right locking hole, the locking hole and the lower ears are threaded locking hole countersunk hole, the countersunk head portion of the spigot are located on the outer surface of the locking plate, the threaded spigot located in the through spigot 部;所述主锁定孔、左上锁定孔、右上锁定孔、左下锁定孔、右下锁定孔、耳部锁定孔和下锁定孔中分别对应地设置有主锁定螺钉(2 )、左上锁定螺钉(3a)、右上锁定螺钉(3b )、左下锁定螺钉(3c )、右下锁定螺钉(3d)、耳部锁定螺钉(3e)和下锁定螺钉(4);所述主锁定螺钉(2)、左上锁定螺钉(3a)、右上锁定螺钉(3b)、左下锁定螺钉(3c)、右下锁定螺钉(3d)、耳部锁定螺钉(3e)和下锁定螺钉(4)的螺纹均为全螺纹;所述主锁定螺钉(2)的螺纹在进入肱骨头的部分为粗牙螺纹。 Portion; the primary locking aperture, the locking aperture upper left, upper right locking hole, the locking hole bottom left, bottom right locking hole, the locking hole portion and the lower lug locking holes respectively provided with a main locking screw (2), the upper left locking screw ( . 3A), the upper right locking screw (3B), the lower left locking screw (. 3C), the lower right locking screw (3D), a locking screw ear portion (3E) and the locking screw (4); said main locking screw (2), the upper left locking screws (3a), upper right locking screw (3b), the lower left locking screw (3c), the lower right locking screw (3d), a locking screw ear portion (3E) and the lock screw thread (4) are fully threaded; the said main locking screw (2) into the threaded portion of the humeral head for the coarse thread.
2.根据权利要求I所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板,其特征在于:所述下锁定孔有3个;所述3个下锁定孔沿中心线由上到下均匀分布在下板部(Ib)上。 The novel treatment according to the I humerus surgical neck fracture fixation locking plate, as claimed in claim wherein: said lower locking holes 3; the lower locking hole 3 along the center line from top to bottom uniformly distribution of the lower plate portion (Ib).
3.根据权利要求I所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板,其特征在于:所述主锁定孔与左上锁定孔和右上锁定孔呈正三角形分布。 The novel treatment according to the I humerus surgical neck fracture fixation locking plate, as claimed in claim wherein: said main locking hole and the locking hole upper left and right locking holes form an equilateral triangle distribution.
4.根据权利要求I所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板,其特征在于:所述主锁定孔与左下锁定孔和右下锁定孔呈正三角形分布。 The novel treatment according to the I humerus surgical neck fracture fixation locking plate, as claimed in claim wherein: said main locking hole and the locking hole bottom left and right locking holes form an equilateral triangle distribution.
5.根据权利要求I所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板,其特征在于:所述左上锁定螺钉(3a)的头部向左侧偏斜;所述右上锁定螺钉(3b)的头部向右侧偏斜。 The novel treatment according to the I humerus surgical neck fracture fixation locking plate, as claimed in claim wherein: said upper left locking screw head (3a) is skewed to the left; the right upper locking screw (3b ) head skewed to the right.
6.根据权利要求I所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板,其特征在于:所述左下锁定螺钉(3c)的头部向左侧偏斜;所述右下锁定螺钉(3d)的头部向右侧偏斜。 The novel treatment according to the I humerus surgical neck fracture fixation locking plate, as claimed in claim wherein: said lower left locking screw head (3c) deflected to the left; lower right of the locking screw ( 3d) skewed to the right side of the head.
7.根据权利要求I所述的治疗肱骨外科颈骨折的新型内固定锁定接骨板,其特征在于:所述上板部(Ia)的周边上设置有多个缝合孔(5)。 The novel treatment according to the I humerus surgical neck fracture fixation locking plate, as claimed in claim wherein: said upper is provided with a plurality of suture holes (5) on the periphery of the plate portion (Ia) of.
CN2012102933860A 2012-08-17 2012-08-17 Novel internally fixing and locking bone fracture plate for curing of humerus collum chirurgicum fractures CN102835998A (en)

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