CN1338910A - 用于提取骨片的装置 - Google Patents
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- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
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Abstract
用于提取骨片的装置,其包括A)一切削工具(16),其具有纵轴线(2)、一旋转刀头(1)和一连接于旋转刀头(1)、与纵轴线(2)同心设置的纵向轴(8);B)驱动装置(14),其设有手柄(37);和C)一处于真空下、可连接于轴(8)的容器(17);其中D)旋转工具(16)具有沿纵轴线(2)方向穿通的孔(10)并且旋转刀头(1)设有至少一个通孔(7),以便由旋转刀头(1)切削提取的骨片可以通过孔(10)输送;和E)在切削提取骨片的过程中还可以借助于容器(17)中的真空将骨片通过孔(10)从旋转刀头(1)送入容器(17)中,其中F)切削工具(16)、容器(17)和驱动装置(14)连接成一个装置而可借助于手柄(37)手持随意活动。
Description
本发明涉及按照权利要求1的前序部分的一种用于提取骨片的装置。
内生骨质材料的植入术在骨折不能愈合时、假关节情形和在关节固定术时用于优化成功率的情况下仍然是最有效的处理方法。采用内生骨质材料比采用人造的羟基磷灰石或体外骨移植物更为可靠和有效,但需要在病人身体上进行附加的手术。这可以通过有限的穿入深度和通过使用一圆柱形针使之降至最低程度,该圆柱针例如是为了诊断目的用来提取骨质材料的。然而该技术是复杂而危险的因为不能确保精确的控制。因此大多通过较大的皮肤切面和由骨盆边缘上大的开口凿出海绵状体。专用的骨片采集工具可以通过小的皮肤切面可靠而迅速地提取体内的骨片,其将病人的不舒服感和伤害减至最小。这些装置可靠地提取骨质材料并可以和一钻机一起应用,借此可以取得较大量的骨质材料和较好的可控性以及使无意的穿透皮层减至最小程度。这样可靠和有效的技术使其能够以对供体最小的伤害取得用于结合、假关节和骨折的体内骨移植物。骨移植物通常从病人身体的骨盆骨上提取。可用的骨质材料也可以在尺骨的近侧或桡骨的末端取得。
由BONUTTI氏的US5403317已知一种用于提取组织的方法和装置。该已知发明包括一用于经由皮下提取组织的装置并由一软的钻头轴和驱动该轴的装置构成。为了从组织上切出组织碎片,在轴的前端安装一刀头。组织碎片在切割过程中借助于真空通过轴被吸到体外的一个位置。
该已知装置的缺点是骨片通过一受负压作用的软管离开切割装置输送到一过滤器或其他的分离装置。由此为骨片形成的长的输送路线,使在输送管线远离刀头的一端需要高的真空并且特别是在输送管线的转弯处为骨片不希望地沉积在输送管线内部提供了可能性。
本发明将解决这个问题。本发明的目的在于,开发一种装置,其中使骨片在提取位置与收集容器之间的输送路线尽可能的短并且将骨片收集于直接连接于钻具的容器中。
本发明借助于一种用于提取骨片的装置解决所设定的目的,该装置具有权利要求1的特征。
本发明的其他一些有利的结构的特征说明于从属权利要求中。
通过本发明获得的优点基本上在于,按照本发明的装置具有紧凑的结构,切割工具、驱动装置和收集容器连接成一个装置而可以手持随意活动并且通过收集容器的设置能够使装置具有高的抽吸功率。
本发明的装置包括一空心圆柱形旋转刀头,其可以具有各种构造的钻头和刀刃、一空心圆柱形轴,其具有为其装进驱动装置之装置和一驱动装置,其例如可由一通用钻机构成。旋转刀头和轴的空心圆柱形结构使由旋转刀头从海绵状体上取下骨片能够通过孔吸入空心圆柱体的内部。为了收集骨片,将一容器这样安装在驱动装置上,使空心圆柱形轴通向该容器。为了吸出骨片,在容器上安装一管接头用以连接一真空软管。通过这样建立的真空,骨片通过旋转刀头上的一个或多个通孔被吸入轴的孔内并由那里通过整个轴输送入容器中。为了使骨片不进入真空软管,在容器中设置一分离装置用以将骨片从空气流中分离开来。该分离器可以设计为过渡器、筛子、反射板或旋流器。
在一优选的实施形式中,本发明的装置包括一在扭转和/或弯曲方面可弹性变形的轴。这样的可变形性可以通过将轴设计为螺旋形包卷的薄板金属带、具有金属丝包皮加强的塑料软管或橡胶软管或者具有波纹管式侧壁的金属管来建立。为了密封处于真空下的工具轴中的孔,优选将一橡胶软管或塑料软管插入该钻孔中。轴的弹性变形性和边缘不太锋锐地构成的旋转刀头使其可以在皮层之间取出海绵状体,而不因此切割较硬的皮层或穿透后者。
旋转刀头与轴之间的连接可以为可拆式连接或固定式连接,其中可拆式连接可使工具块较小。作为可拆式连接可以是螺纹连接、径向双头螺柱连接或径向销连接。
旋转刀头的钻头优选设计为一具有一刀刃的球形扇形体。其他一些钻头的实施形式可以为具有刀刃的锥形扇形体或具有端面刀齿的空心圆柱形铣刀。
一特别的旋转刀头的实施形式在于,将旋转刀头的钻头构成球形的、具有至少两个同轴于和径向于纵轴线在空腔中延伸的通孔,其中在通孔的各边缘设有用于提取骨片的刀刃并且提取的骨片可以通过通孔送入旋转刀头的空腔中。
在一优选的实施形式中,真空包括的压力范围为约0巴至1巴,但优选其为0.2巴至0.8巴。
以下对本发明及其进一步构成借助于更多个实施例的部分简图加以更详细地说明。
图1示出按照本发明的装置的一个实施形式的简图;
图2示出本发明装置的一个实施形式的具有软轴的旋转刀头之透视图;
图3示出本发明装置的一个实施形式的具有软轴的旋转刀头之前视图;
图4示出本发明装置的另一实施形式的简图。
图1中示出本发明装置的一个优选的实施形式。用于提取骨片的切削工具16由一旋转刀头1与一沿纵轴线2延伸的空心圆柱形轴8构成。该轴8轴向地和防转地固定于用作驱动装置14的通用钻机30的夹头15中。通用钻机30作为和切削工具16与容器17一起的完整单元借助于手柄37可以手持随意活动。驱动装置14给轴8和旋转刀头1施加一绕纵轴线2的旋转运动,借此旋转刀头1钻入骨内并提取待采集的骨片。轴8从旋转刀头1直到其远离旋转刀头1的一端21设计成空心圆柱形的,以便可以沿轴8的全长输送骨片。在驱动装置14还安装有容器17用以收集骨片。容器17与纵轴线2是共轴的,以其前端24可拆式固定在驱动装置14上,使切削工具16远离旋转刀头1的一端21对环境气密密封地通向容器17。切削工具16在容器开口中的这样的对环境气密密封可以通过后端21在容器开口中的基本上无间隙的支座或通过在后端21上或在容器开口中嵌入一密封件,例如一O型密封圈来达到。容器17在其远离轴8的一端23设有管接头18,其上可以连接一真空软管(未示出)。通过软管中的真空容器17也被抽成真空,因此在空心圆柱形轴8的内部形成一负压并因此由旋转刀头1提取骨片通过轴8的内部被吸收并进入容器17,接着可以将其收集于容器17中。为了使骨片不因真空被吸入软管,在容器17中安装一分离装置19,使骨片不可能通过管接头18出去,其中分离装置19在优选实施形式中构成为筛子。
图2示出旋转刀头1的一个实施形式。旋转刀头1设计成具有纵轴线2和一钻头20的空心圆柱形的并且包括一个连接于钻头20的前部4和一远离钻头20的后部5。前部4由一空心圆柱体与一形成为球状扇形体的钻头20构成,其中前部4在与纵轴线2成直角的横截面上观察的侧壁只包括一圆环式扇形体,以便形成一径向于空心圆柱形部分并轴向于钻头20延伸的通孔7。前部4的侧壁从钻头20直到后部5向着通孔7构成为刀刃3。如果旋转的刀头1钻入骨中,则刀刃3提取骨片并通过通孔7进入旋转刀头1的空腔9中并由那里借助于真空通过孔10吸入轴8。
图3中示出具有旋转刀头1和轴8的工具16。轴8包括一在扭转和/或弯曲方面可弹性变形的部分22和一远离旋转刀头1的部分11,部分11设有用于吸收转矩的装置13。装置13由具有外六角的部分25和一以沟槽26与其连接的圆柱部分27。两部分25和27可以装进驱动装置14(图1)上的相应的夹头15(图1)内,其中轴8可轴向借助于沟槽26和防转通过外六角可拆式固定于夹头15(图1)中。空心圆柱形轴8中的孔10沿旋转刀头1的纵轴线2方向穿过轴8直到轴8远离旋转刀头1的一端21,以便由旋转刀头1提取的骨片可沿纵轴线2通过整个工具16输送。固定螺钉或例如在轴8与旋转刀头1间的弹性销可以用来将旋转刀头1固定于轴8上。轴8的可弹性变形的部分22由一螺旋式包卷的金属带制成,其中一橡胶的软管或塑料软管36(图4)插入孔10中,该软管确保在软管的孔中对环境气密密封。向着轴8的远离旋转刀头1的一端21,轴8再度构成为空心圆柱形部分28而连接于用于吸收转矩的装置11,以便在这部分28接入容器17(图1)时也能够对环境气密密封。
在图4中示出本发明装置的另一个优选的实施形式。这其中示出的本发明装置的实施形式不同于图1中所示的实施形式的只在于,切削工具16穿过与纵轴线2共轴设置的容器17并且用于吸收由通用钻机30给予的转矩的装置13在远离旋转刀头1的容器底部33的区域可拆式连接于通用钻机30。容器17以其容器底部33可拆式固定在通用钻机30上。代替容器盖,一轴承座34装入容器17中,其中工具16例如借助于球轴承35来支承以便其绕纵轴线2作旋转运动。在这个实施形式中,切削工具16在轴承座34中对环境的气密密封也可以通过嵌入一密封件例如在切削工具16与轴承座34之间的0型密封圈40来达到。此外,用于连接真空软管的管接头安装在容器17的侧壁上。为了密封软轴8在其孔10中沿纵轴线2插入一橡胶软管或塑料软管。由旋转刀头1提取骨片借助于真空通过穿过与纵轴线2共轴的工具16的孔10输送到工具16远离旋转刀头1的一端21并由那里通过夹头15中的开口38被吸入容器17。为了使骨片不通过管接头18被吸入真空软管(未示出),在容器17中安装一分离装置19,其优选构成为筛子。
Claims (25)
1.用于提取骨片的装置,其包括:
A)一可旋转的空心圆柱形切削工具(16),其具有纵轴线(2)、一旋转刀头(1)和一连接于旋转刀头(1)、与纵轴线(2)同心设置的纵向轴(8);
B)驱动装置(14),其设有手柄(37)并借助于该手柄(37)对具有旋转刀头(1)的切削工具(16)施加以绕纵轴线(2)的旋转运动;以及
C)一处于真空下、可连接于轴(8)的容器(17),其具有中心轴线(39);其中
D)切削工具(16)具有沿纵轴线(2)方向穿通的孔(10)并且旋转刀头(1)设有至少一个通孔(7),以便由旋转刀头(1)切削提取的骨片可以通过孔(10)输送;以及
E)在切削提取骨片的过程中还可以借助于容器(17)中的真空将骨片通过孔(10)从旋转刀头(1)送入容器(17)中;
其特征在于,
F)切削工具(16)、容器(17)和驱动装置(14)连接成一个装置而可借助于手柄(37)手持随意活动。
2.按照权利要求1所述的装置,其特征在于,切削工具(16)远离旋转刀头(1)的一端(21)通向容器(17)。
3.按照权利要求2所述的装置,其特征在于容器(17)可拆式安装在驱动装置(14)上。
4.按照权利要求3所述的装置,其特征在于,容器(17)这样可拆式安装在驱动装置(14)上,使其中心轴线(39)与纵轴线(2)同心延伸。
5.按照权利要求1至4之一项所述的装置,其特征在于,容器(17)相对于纵轴线(2)是固定的并且旋转的空心圆柱形切削工具(16)远离旋转刀头(1)的一端(21)通向容器(17)。
6.按照权利要求2至5之一项所述的装置,其特征在于,旋转的空心圆柱形切削工具(16)远离旋转刀头(1)的一端(21)这样通向容器(17),使其对环境气密密封切削工具(16)与容器(17)之间的过渡部。
7.按照权利要求6所述的装置,其特征在于,旋转的空心圆柱形切削工具(16)远离旋转刀头(1)的一端(21)基本上无间隙地通向容器(17)。
8.按照权利要求6所述的装置,其特征在于,旋转的空心圆柱形切削工具(16)远离旋转刀头(1)的一端(21)包括一密封件而容器(17)包括一容器开口,以便密封件密封切削工具(16)的末端(21)与容器开口之间的环形间隙并从而对环境气密密封切削工具(16)与容器(17)之间的过渡部。
9.按照权利要求5所述的装置,其特征在于,容器(1 7)包括一轴承座(34),在其中同心于纵轴线(2)支承切削工具(16)并使其可绕纵轴线(2)旋转。
10.按照权利要求9所述的装置,其特征在于,轴承座(34)包括一球轴承(35),在其中同心于纵轴线(2)支承切削工具(16)并使其可绕纵轴线(2)旋转。
11.按照权利要求9或10所述的装置,其特征在于,轴承座(34)包括一密封件,借此对环境气密密封切削工具(16)在轴承座(34)中的支座。
12.按照权利要求11所述的装置,其特征在于密封件为一O型密封圈。
13.按照权利要求1至12之一项所述的装置,其特征在于,容器(17)上安装一管接头(18)用以连接一真空软管。
14.按照权利要求1至13之一项所述的装置,其特征在于,容器(17)包括一分离装置用以从空气流中分离骨片。
15.按照权利要求14所述的装置,其特征在于分离装置(19)由一过滤器构成。
16.按照权利要求1至15之一项所述的装置,其特征在于,轴(8)在其连接于旋转刀头(1)的部分(22)在扭转和/或弯曲方面是弹性的。
17.按照权利要求16所述的装置,其特征在于轴(8)由一螺旋式包卷的金属带制成。
18.按照权利要求1至17之一项所述的装置,其特征在于,在轴(8)的孔(10)中还沿纵轴线(2)插入一塑料软管或橡胶软管。
19.按照权利要求16或18所述的装置,其特征在于轴(8)由一具有波纹管式壁的金属管构成。
20.按照权利要求1至19之一项所述的装置,其特征在于,旋转刀头(1)构成空心圆柱形的并包括一沿纵轴线(2)延伸的空腔(9)、一设有钻头(20)和至少一刀刃(3)的前部(4)、一空心圆柱形后部(5)和至少一个通孔(7),该通孔(7)在前部(4)中径向穿过旋转刀头(1)的外壁(29)以便将由至少一个刀刃(3)提取的骨片输送入旋转刀头(1)的空腔(9)中。
21.按照权利要求20所述的装置,其特征在于旋转刀头(1)的钻头(20)构成为球状扇形体。
22.按照权利要求20所述的装置,其特征在于,旋转刀头(1)的钻头(20)构成球形的、其具有至少两个同轴于和径向于纵轴线(2)在空腔(9)中延伸的通孔(7),其中在通孔(7)的各边缘设置刀刃(3)用以提取骨片并且提取的骨片可通过通孔(7)送入旋转刀头(1)的空腔(9)中。
23.按照权利要求1至22之一项所述的装置,其特征在于驱动装置(14)由一通用钻机(30)构成。
24.按照权利要求1至23之一项所述的装置,其特征在于,轴(8)设计成穿通的空心圆柱形的、具有装置(13)用以吸收使轴(8)绕纵轴线(2)旋转的转矩并且可在其连接于旋转刀头(1)的一端(12)连接于后部(5),使空心圆柱形轴(8)的孔(10)与空腔(9)对准并可由轴(8)将转矩传给旋转刀头(1)。
25.按照权利要求24所述的装置,其特征在于,驱动装置(14)包括夹头(15)用以防转地和轴向地固定轴(8)上的装置(13)。
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US5947972A (en) | 1998-10-28 | 1999-09-07 | Midas Rex, L.P. | Irrigation pressurization system |
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- 2000-01-31 AT AT00901019T patent/ATE341279T1/de active
- 2000-01-31 EP EP00901019A patent/EP1148823B8/de not_active Expired - Lifetime
- 2000-01-31 ES ES00901019T patent/ES2277826T3/es not_active Expired - Lifetime
- 2000-01-31 NZ NZ513133A patent/NZ513133A/en not_active IP Right Cessation
- 2000-01-31 AU AU20895/00A patent/AU745336B2/en not_active Ceased
- 2000-01-31 CA CA002360860A patent/CA2360860C/en not_active Expired - Fee Related
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- 2000-01-31 CN CN00803394A patent/CN1338910A/zh active Pending
- 2000-01-31 JP JP2000596838A patent/JP4306969B2/ja not_active Expired - Fee Related
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CN102525597A (zh) * | 2010-12-15 | 2012-07-04 | 财团法人金属工业研究发展中心 | 手术用切除装置 |
CN102525597B (zh) * | 2010-12-15 | 2013-12-04 | 财团法人金属工业研究发展中心 | 手术用切除装置 |
US10448967B2 (en) | 2011-12-03 | 2019-10-22 | DePuy Synthes Products, Inc. | Discectomy kits with an obturator, guard cannula |
CN102488542A (zh) * | 2011-12-09 | 2012-06-13 | 张鹏 | 清屑防护骨钻 |
US10194922B2 (en) | 2012-05-11 | 2019-02-05 | Peter L. Bono | Rotary oscillating bone, cartilage, and disk removal tool assembly |
US11389179B2 (en) | 2012-05-11 | 2022-07-19 | Globus Medical, Inc. | Rotary oscillating bone, cartilage, and disk removal tool assembly |
CN104602621B (zh) * | 2012-05-11 | 2017-12-19 | 彼得·L·博诺 | 旋转振荡式骨、软骨和椎板切除工具组件 |
US20150080896A1 (en) | 2013-07-19 | 2015-03-19 | Ouroboros Medical, Inc. | Anti-clogging device for a vacuum-assisted, tissue removal system |
US10342563B2 (en) | 2013-07-19 | 2019-07-09 | DePuy Synthes Products, Inc. | Anti-clogging device for a vacuum-assisted, tissue removal system |
CN105578975A (zh) * | 2013-07-19 | 2016-05-11 | 欧罗波罗斯医学有限公司 | 用于真空辅助式组织移除系统的防堵塞装置 |
CN108135623A (zh) * | 2015-08-18 | 2018-06-08 | 因西坡设备公司 | 偏置铰刀驱动器 |
US11576687B2 (en) | 2015-08-18 | 2023-02-14 | Incipio Devices Sa | Offset reamer driver |
US10582933B2 (en) | 2018-03-22 | 2020-03-10 | Capstone Surgical Techologies, LLC | Oscillating surgical cutting tool |
US11766266B2 (en) | 2018-03-22 | 2023-09-26 | Globus Medical Inc. | Oscillating surgical cutting tool |
Also Published As
Publication number | Publication date |
---|---|
AU2089500A (en) | 2000-08-25 |
JP2003523218A (ja) | 2003-08-05 |
US6783532B2 (en) | 2004-08-31 |
NZ513133A (en) | 2002-06-28 |
EP1148823B8 (de) | 2007-09-12 |
ATE341279T1 (de) | 2006-10-15 |
EP1148823A1 (de) | 2001-10-31 |
ES2277826T3 (es) | 2007-08-01 |
ZA200105286B (en) | 2002-01-25 |
EP1148823B1 (de) | 2006-10-04 |
CA2360860C (en) | 2008-11-04 |
DE29901723U1 (de) | 2000-06-29 |
WO2000045712A1 (de) | 2000-08-10 |
AU745336B2 (en) | 2002-03-21 |
CA2360860A1 (en) | 2000-08-10 |
JP4306969B2 (ja) | 2009-08-05 |
US20020058945A1 (en) | 2002-05-16 |
DE50013560D1 (de) | 2006-11-16 |
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