CN103908319B - Cancellous bone cutter with medical osteotomy cartilage - Google Patents

Cancellous bone cutter with medical osteotomy cartilage Download PDF

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Publication number
CN103908319B
CN103908319B CN 201410162749 CN201410162749A CN103908319B CN 103908319 B CN103908319 B CN 103908319B CN 201410162749 CN201410162749 CN 201410162749 CN 201410162749 A CN201410162749 A CN 201410162749A CN 103908319 B CN103908319 B CN 103908319B
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CN 201410162749
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Chinese (zh)
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CN103908319A (en )
Inventor
王骏飞
熊进
郑欣
施鸿飞
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南京大学医学院附属鼓楼医院
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Abstract

本发明涉及医用软骨下松质骨楔形截骨剪切器。 The present invention relates to a medical cancellous bone under the cartilage cutter osteotomy. 本发明结构是两个剪切臂交叉处由关节转动连接,每个剪切臂在关节后一段为长臂,在关节前一段为短臂,每一剪切臂的短臂前端连接卡口,卡口前端连接剪切刀头,剪切刀头上排列多个刀刃,一剪切臂的长臂上连接螺杆,螺杆另一端穿过另一剪切臂的长臂并在穿过部分的螺杆上连接螺母。 Structure of the present invention is rotated at the intersection of two shear arms connected by a joint, each joint after the shearing arms at a period of the long arm, the short arm of the anterior paragraph, each shearing arm distal short arm of the bayonet connection, bayonet connection cut distal tip, a plurality of shearing blades arranged in blade head connected to a screw on the long arm of the shearing arms, the other end of the screw passes through the long-arm and the other arm passing through the shear screw section the coupling nut. 本发明克服了过去使用骨刀、骨凿等手工修整的截骨面不平整,随意性大,照成供体截骨面与受体截骨面不匹配,引起术后排斥反应,不利于骨愈合等缺陷。 The present invention overcomes the past the use of bone knives, chisels manually trimmed bone osteotomy surface is not flat, arbitrary, according to the donor surface and the osteotomy surface receptor osteotomy mismatch, causing rejection after, is not conducive to bone defect healing. 本发明提高剪切效率,缩短手术时间,可使每次截骨形态保持一致,剪切力缓慢、均匀释放,可重复使用,使移植供体与受体完全吻合,易于骨性愈合。 The present invention improves the efficiency of the shearing, shorten the operation time, can form each osteotomy consistent shear slow, uniform release, can be reused, a graft donor and recipient fully consistent, easy-to-bone healing.

Description

医用软骨下松质骨楔形截骨剪切器 Cancellous bone cutter with medical osteotomy cartilage

技术领域 FIELD

[0001]本发明涉及一种医疗器械,特别涉及医用软骨下松质骨楔形截骨剪切器。 [0001] The present invention relates to a medical instrument, particularly to medical cancellous bone under the cartilage cutter osteotomy.

背景技术 Background technique

[0002]在本发明作出之前,大块同种异体软骨移植时,供体软骨下松质骨的移植前修整为手工操作,使用骨刀,骨凿等简单工具。 [0002] Prior to the present invention, when the bulk allograft cartilage graft, pre-transplant donor cancellous bone trimmed manually, using knives bone, bone and other simple cutting tools cartilage. 手工修整的截骨面不平整,随意性大,导致每一个截骨面的形态不一致,并容易照成供体截骨面与受体截骨面不匹配。 Hand finishing osteotomy surface irregularities, arbitrary, inconsistent results in each form a side of the osteotomy and easily according to the osteotomy surface of the donor to the receptor surface does not match the osteotomy. 由于手工截骨,需要保留较多的软骨下松质骨用于固定用,导致异体松质骨成分保留较多,是引起术后排斥反应的重要因素之一。 As the manual osteotomy, the need to retain more cancellous bone under the cartilage for fixing, resulting in allogeneic cancellous bone to retain more ingredients, is one of the important factors of postoperative rejection. 再有,传统手工截骨为单平面截骨,不论供体软骨下松质骨还是受体松质骨床均为平面,因此,供体与受体的接触面积小,爬行替代的骨愈合时间会较长,不利于骨愈合。 Furthermore, traditional hand osteotomy osteotomy single plane, regardless of the cancellous bone cartilage donor or acceptor cancellous bone bed are planar, and therefore, small contact area of ​​the donor and acceptor, creeping substitution of bone healing time will long, is not conducive to bone healing. 传统的软骨下松质骨单平面截骨不能改变软骨的原有曲面弧度,不能与受体完全匹配,不能达到完全修复受体关节面软骨的目的。 Traditional subchondral cancellous bone osteotomy single plane can not change the original cartilage surface curvature, can not be completely matched with the receptor, the receptor can not achieve complete repair of the articular cartilage.

发明内容 SUMMARY

[0003]本发明的目的就在于克服上述缺陷,研制一种医用软骨下松质骨楔形截骨剪切器 [0003] The object of the present invention to overcome the above drawbacks is that developed cancellous bone osteotomy shears under a medical cartilage

[0004]本发明的技术方案是: [0004] aspect of the present invention is:

[0005]医用软骨下松质骨楔形截骨剪切器,两个剪切臂交叉处由关节转动连接,每个剪切臂在关节后一段为长臂,在关节前一段为短臂,其主要技术特征在于每一剪切臂的短臂前端连接卡口,卡口前端连接剪切刀头,剪切刀头上排列多个刀刃,一剪切臂的长臂上连接螺杆,螺杆另一端穿过另一剪切臂的长臂并在穿过部分的螺杆上连接螺母。 [0005] Cancellous bone osteotomy shears under medical cartilage, at the intersection of two shearing arms is rotatably connected by a joint, each joint after the shearing arms at a period of the long arm, the short arm section of the anterior, mainly technique wherein a front end connected to the short arm of each shear arm mount, a bayonet connection cut distal tip, a plurality of shearing blades arranged in blade head connected to a screw on the long arm of the shearing arms, the other end of the screw through through the other of the long arm and the shearing arms are connected through a nut on the screw portion.

[0006]所述两个剪切刀头上排列的多个刀刃啮合时相互错开。 A plurality of blades engaged with each other when the offset [0006] The two heads arranged shearing blades.

[0007]所述剪切刀头的外圆弧上排列多个刀刃,刀刃为楔形。 A plurality of cutting edges arranged on the [0007] outer arc cutting tip, the blade is wedge-shaped.

[0008]剪切刀头的后部有凹槽,连接卡口上有一突起的卡口簧片,凹槽与卡口簧片匹配。 [0008] The rear portion of the groove cutting tip, there is a bayonet spring projection, the bayonet groove and tongue matching bayonet connection.

[0009]本发明的优点和效果在于:1.一次剪切即刻完成对软骨下松质骨的楔形截骨,极大提高剪切效率,缩短手术时间。 [0009] The advantages and effects of the present invention is: a first shearing osteotomy instant subchondral cancellous bone, which greatly improves cutting efficiency, shorten the operation time. 2.可以根据供体软骨的弧度选择相应的剪切刀头。 2. Cut the tip may be selected in accordance with the respective donor cartilage radians. 3.可以根据需要成形的软骨弧度选择相应刀刃角度的刀头。 3. blade angle may be selected according to the respective bit cartilage arc shaped as desired. 4.剪切刀头有凹槽,剪切器连接卡扣有突起簧片,可直接插、拔刀头,便于迅速替换刀头。 4. Cut the tip with grooves cut projection reed snap connection, can be directly inserted, sword head facilitates quick replacement head. 5.使用该发明可使每次截骨形态保持一致,有极高重复性。 5. The invention allows each osteotomy morphology consistent with high reproducibility. 6.由于剪切力是通过长的剪切臂上的加压螺母的拧紧实现,具有杠杆和螺纹杆双重力量放大作用,可剪切置地坚硬的骨组织;同时使剪切过程剪切力缓慢、均匀释放,剪切幅度可微调,这样可避免直接手持剪切用力过猛造成松质骨破碎或力度不够导致的剪切困难。 6. Since the shearing force is achieved by tightening a nut screwed pressurizing long shear arm, the lever having a dual power amplification and the threaded rod, opposite cleavable hard bone; shear forces while the shearing process slow uniform release, the shear magnitude can be adjusted, so as to avoid excessive force caused by direct hand cut cancellous bone crushing or shearing caused by inadequate difficulties. 7.本截骨剪切器为全金属结构,可以反复消毒,重复使用。 7. This shears osteotomy all-metal structure, it can be repeatedly sterilized reused. 8.配合受体松质骨移植床成形器,可使移植供体软骨下松质骨截骨后形态与受体松质骨床完全匹配,从而使移植供体与受体完全吻合,易于骨性愈合。 8. receptor with cancellous bone graft bed shaper, can cancellous bone after osteotomy exact match to the receptor morphology bed subchondral cancellous bone transplant donor, so that the transplant donor and recipient fully consistent, easy to bone heal.

附图说明 BRIEF DESCRIPTION

[00Ί0]图1 本发明结构原理不意图。 [00Ί0] FIG principles of the invention a structure is not intended. [ΟΟΊΊ] 图2--图1俯视图。 [ΟΟΊΊ] FIG 2-- a plan view of FIG.

[0012]图中各标号对应部件如下: [0012] FIG numeral corresponding to each component as follows:

[0013]剪切臂1、关节2、连接卡口 3、剪切刀头4、楔形刀刃5、卡口簧片6、螺杆7、加压螺母 [0013] shearing arms 1, 2 joint, bayonet connection 3, shear head 4, a wedge-shaped cutting edge 5, the bayonet spring 6, the screw 7, the pressing nut

8、螺杆关节9。 8, 9 of the screw joint.

具体实施方式 detailed description

[0014] 如图1、2所示: [0014] FIG. 1 and 2:

[0015]本软骨下松质骨楔形截骨剪切器为全金属材料制备,整体为剪刀样结构。 [0015] Under this cartilage cancellous bone osteotomy cut is all-metal material is prepared, whole scissor-like structure.

[0016]两个剪切臂I为长杆状,并弯曲交叉由关节2连接,关节2将剪切臂I分割成短臂和长臂,长臂为手持部分。 [0016] I two elongated rod-like shearing arms and connected by a curved cross joint 2, the arm joint 2 I cut into short arm and long arm, the long arm of the handle portion. 短臂末端为连接卡口3,连接卡口3与剪切刀头4连接,剪切刀头4有多个弧形排列的楔形(三角形)刀刃5。 End of the short arm of 3 bayonet connection, a bayonet connection 34 is connected to the cutting head, cutting head 4 are arranged a plurality of arcuate wedge (triangular) blade 5. 连接卡口3可与多种不同款型具有不同弧度的剪切刀头4连接。 Shear head bayonet connection 3 may have a different curvature of the connection 4 a number of different models. 剪切刀头4的后部有凹槽,连接卡口3上有一突起的卡口簧片6,当连接卡口3插入剪切刀头4时,卡口簧片6变形,然后弹起,固定于剪切刀头4的后部有凹槽,使剪切刀头4稳定。 4 is a rear cut groove tip, a protrusion bayonet spring 6 on the bayonet connection 3 when the connector 3 is inserted into the bayonet shearing head 4, bayonet deformed reed 6, and then bounce, 4 is fixed to the rear portion of the groove cutting tip, the shearing head 4 stably. 剪切刀头4有两个,分别安装于两个剪切臂I的连接卡扣3上,两个剪切刀头4上的楔形刀刃5为间隔排列,楔形刀刃5分布在剪切刀头4的外侧边即外圆弧边上,剪切刀头4在剪切状态是楔形刀刃5为耦合成对的状态,两个剪切刀头4上排列的多个楔形刀刃5啮合时相互错开。 Two shear head 4, two cutting arms are attached to the snap-on connection I 3, two wedge-shaped cutting edge on the cutter head 45 is spaced, wedge-shaped cutting edge 5 located in a shear head 4 the outer edge i.e. the edge of the outer arc, shearing the shear head 4 to couple the pair state is state 5, a plurality of wedge-shaped cutting edge 5 engages the wedge 4 arranged on the two edges to each other when the cutting head stagger. 一个剪切臂I的长臂上有一长的螺杆7,螺杆7穿过另一剪切臂I的长臂上的相应位置上的孔与一剪切臂I的长臂上的螺杆关节9连接,在螺杆7的另一端有一加压螺母8拧于螺杆7上。 I have a long arm on a cutting arm long screws 7, 7 through the screw hole of the screw joint on the corresponding position on the other shear arm and a long arm I shearing arms I long arm 9 is connected at the other end of the screw 7 has a pressing nut 8 is screwed on the screw 7.

[0017]本发明应用过程说明: [0017] The present invention is described in the application process:

[0018]将取材好的带有软骨下松质骨的供体移植物与不同款型的的剪切刀头4比较,选择与软骨面弧度近似以及刀刃角度合适的的一对剪切刀头4。 [0018] The cutting head drawn with different donor transplant models of good with subchondral cancellous bone 4, selects the cartilage surface curvature approximated and a suitable blade angle of shear head 4 . 将连接卡口3插入剪切刀头4,此时卡口簧片6变形,然后弹起,固定于剪切刀头4的后部有凹槽内,使剪切刀头4稳定。 3 is inserted into the bayonet connection shearing head 4, when the bayonet deformed reed 6, and then bounce, is fixed to the rear portion 4 of the cutting head has a recess, the shearing head 4 stably. 如不合适,可拔出剪切刀头4,更换其他款型,这样可快速替换刀头直至符合要求。 As appropriate, extractable cutting blade tip 4, the replacement of other models, which can be quickly replaced head until it meets the requirements. 逆时针旋转加压螺母8,使加压螺母8沿螺杆7向末端移动,即可松开将剪切臂I的手持部分打开(分离),此时由于关节2作为支点,剪切臂I的短臂也同时分开,两个剪切刀头4也相应分离。 Pressing nut 8 rotates counterclockwise, the nut 8 along the pressing screw 7 towards the tip, can release the handle portion of the shearing arms I open (separation), since the case as a pivot joint 2, the shearing arms I short arm also separate, two separate cutting tip 4 accordingly. 将带有软骨下松质骨的供体移植物置于两剪切刀头4之间,剪切刀刃5对准移植物的软骨和松质骨的交接处。 The cancellous bone with the donor graft is placed, cutting blade junction of cartilage and cancellous bone between two cutting tip 45 aligned subchondral graft. 此时单手合拢两剪切臂I的手持部分,另一手顺时针旋转加压螺母8,使加压螺母8沿螺杆7向近端移动,两剪切臂I相互靠拢,剪切刀头4作缓慢剪切动作,带有软骨下松质骨的供体移植物的松质骨将有部分被切除,剩余的部分形成楔形排列,配合使用同一匹配款型的受体软骨下松质骨楔形截骨成形器,可使移植供体软骨下松质骨截骨后形态与受体松质骨床完全耦合,从而使移植软骨供体的松质骨与受体松质骨床完全吻合,以最大接触面愈合,易于快速骨性愈合。 In this case the one hand I collapsed portions of the two shearing arms hand, the other hand the pressure nut 8 rotates clockwise, the pressing nut 87 moves proximally along the screw, two shearing arms I close to each other, cutting head 4 slowly and the shearing action, cancellous bone graft donor with subchondral cancellous bone part will be cut, the remaining portion of a wedge-shaped arrangement, with the use of cancellous bone at the same receptor cartilage models matching wedge osteotomy shaper can shape and fully coupled receptor cancellous bone bed after osteotomy subchondral cancellous bone transplant donor, so that the cancellous bone and cancellous bone bed receptor cartilage graft donor complete match, to the maximum contact surface healing, easy-to-bone healing fast. 由于剪切力是通过长的剪切臂上的加压螺母8的拧紧实现,具有杠杆和螺纹杆双重力量放大作用,可剪切置地坚硬的骨组织;同时使剪切过程剪切力缓慢、均匀释放,剪切幅度可微调,这样可避免直接手持剪切用力过猛造成松质骨破碎或力度不够导致的剪切困难。 Since a shearing force by pressing the long shear arm of the tightening nut 8 is achieved, with the double lever and the threaded rod the power amplification, can be cut opposite hard bone; shear force while the shearing process is slow, uniform release, the shear magnitude can be adjusted, so as to avoid direct hand cut too much force caused by shear difficult cancellous bone broken or inadequate due.

Claims (1)

  1. 1.医用软骨下松质骨楔形截骨剪切器,两个剪切臂交叉处由关节转动连接,每个剪切臂在关节后一段为长臂,在关节前一段为短臂,其特征在于每一剪切臂的短臂前端连接卡口,卡口前端连接剪切刀头,剪切刀头的外圆弧边上排列多个刀刃,多个刀刃为楔形,一剪切臂的长臂上连接螺杆,螺杆另一端穿过另一剪切臂的长臂并在穿过部分的螺杆上连接螺母,剪切刀头的后部有凹槽,连接卡口上有一突起的卡口簧片,凹槽与卡口簧片匹配。 Cancellous bone osteotomy cutter 1. Under medical cartilage, at the intersection of two shearing arms is rotatably connected by a joint, each joint after the shearing arms at a period of the long arm, the short arm of the anterior paragraph, characterized in that connected to the tip of the short arm of each shear arm mount, a bayonet connector distal cutting tip, an outer arcuate edge of the shearing head arranged a plurality of blades, a plurality of wedge-shaped edges, a long arm of the shearing arms the screw connection, the other end of the screw through the long arm of the other shearing arms and connected to the screw through a nut portion, the rear portion of the groove cutting tip, there is a tongue projecting bayonet bayonet connection , bayonet groove and tongue match.
CN 201410162749 2014-04-21 2014-04-21 Cancellous bone cutter with medical osteotomy cartilage CN103908319B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5108401A (en) * 1991-04-12 1992-04-28 New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery Patella cutting clamp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003099146A3 (en) * 2002-05-21 2005-03-03 Todd C Bonvallet Device for distracing bone segments
US7081118B2 (en) * 2002-08-22 2006-07-25 Helmut Weber Medical tool
US20090264897A1 (en) * 2008-03-18 2009-10-22 Wohl Daniel L Tonsil forceps
EP2677947A4 (en) * 2011-02-25 2014-08-06 Cercore Llc Ergonomic and versatile handles for tools including surgical instruments

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5108401A (en) * 1991-04-12 1992-04-28 New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery Patella cutting clamp

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