CN100569192C - Hole enlarging device for orthopedics department - Google Patents

Hole enlarging device for orthopedics department Download PDF

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Publication number
CN100569192C
CN100569192C CN 200510095869 CN200510095869A CN100569192C CN 100569192 C CN100569192 C CN 100569192C CN 200510095869 CN200510095869 CN 200510095869 CN 200510095869 A CN200510095869 A CN 200510095869A CN 100569192 C CN100569192 C CN 100569192C
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reaming
body
reamer
cavity
connector
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CN 200510095869
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Chinese (zh)
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CN1927128A (en
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卢士钧
左适佑
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左适佑;卢士钧
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Abstract

本发明是有关一种骨科用扩孔装置,尤指一种具有扩孔腔的骨科用扩孔装置。 The present invention relates to an orthopedic device by reaming, especially orthopedic reaming cavity having a reaming apparatus. 一种骨科用扩孔装置,其包括:一扩孔本体,其为一端开口一端闭口的管体;及一连接器,其是和该扩孔本体的开口端结合;其特征是:该扩孔本体的闭口端或近闭口端处具有一预成型的扩孔腔,且该扩孔本体含该预成型的扩孔腔是一体成形者。 With one kind of orthopedic reaming device comprising: a reaming body, one end of which is closed at one end opening of the tubular body; and a connector, which is a main body and an open end of the counterbore binding; characterized in that: the reamer or near the closed end of the body closed end having a preformed cavity reamer and the reaming body containing the preform chamber reamer is integrally molded.

Description

骨科用扩孔装置 Orthopedic reaming apparatus with

技术领域 FIELD

本发明是有关一种骨科用扩孔装置,尤指一种具有扩孔腔的骨科用扩孔装置。 The present invention relates to an orthopedic device by reaming, especially orthopedic reaming cavity having a reaming apparatus.

背景技术 Background technique

骨科手术中,经常必须先在骨髓腔或椎体进行扩孔。 Orthopedic surgery, often must first be reamed bone marrow cavity or vertebral body. 目前常见的骨科扩 Current common orthopedic expansion

孔技术有两种: 一种是利用机械式扩孔装置(例如参见美国专利第6,676,665号)进行扩孔,但该技术的最大问题是:扩孔时挤碎的松质骨(cancelloiisbone)碎片,经常掉在扩孔装置中,使该扩孔装置卡住,致使扩孔的元组件无法收回(恢复原状),甚至整支扩孔装置卡在扩孔部位,无法取出;另一种是利用填充式扩孔装置,例如美国Kyphon公司的系列产品,本发明亦为填充式扩孔装置。 Holes in two ways: one is by a mechanical reaming apparatus (see, e.g. U.S. Pat. No. 6,676,665) for reaming, but the biggest problem with this technique is that: when the crushing of the cancellous bone reamer (cancelloiisbone) fragments, often dropped reaming apparatus, the reaming apparatus so jammed, causing irrecoverable reaming element assembly (restitution), or even the whole card support means reaming reaming portion, can not be taken out; the other is filled using Countersinks means, for example, US Kyphon, a series of products, the present invention is also filled reaming apparatus. Kyphon公司的系列产品,为各式各样的气球,以配合不同需求,其装置本身的相关专利诸如:美国专利第5972015号、第6066154号、第6235043号、第6423083号、第6607544号、第6623505号、第6663647号、第6716216号等,其使用方法(扩孔方法)的相关专利诸如:美国专利第5972015号、第6048346号、第6235043号、第6248110号、第6280456号、第6440138号、第6607544号、第6716216号、第6719761号、第6726691号等。 Kyphon's products for a wide variety of balloons to match the different needs of its patents related to the device itself, such as: US Patent No. 5,972,015, No. 6,066,154, No. 6,235,043, No. 6,423,083, No. 6,607,544, the first No. 6,623,505, No. 6,663,647, No. 6,716,216 and the like, using a method (method reaming) related patents, such as: U.S. Patent Nos. 5,972,015, No. 6,048,346, No. 6,235,043, No. 6,248,110, No. 6,280,456, No. 6,440,138 No. 6,607,544, No. 6,716,216, No. 6,719,761, No. 6,726,691 and so on. 综论Kyphon的扩孔装置及扩孔方法,不外乎利用高压,将液体(例如水)灌入气球(依不同需求,使用各式各样的气球)中,使气球膨胀,以推挤骨髓腔或椎体内的松质 Review of the Kyphon reamer reaming apparatus and method, using nothing more than a high pressure, a liquid (e.g., water) poured into the balloon (depending on different needs, use a variety of balloon), the balloon is inflated to push the bone marrow cancellous or lumen within the vertebral body

骨,达到扩孔的目的。 Bone, to achieve the purpose of reaming. 但该装置或方法有诸多缺点,例如:该气球必须连接灌嘴(nc)zzle),因此高压灌入液体时,可能造成气球由灌嘴脱落的现象;再者,为配合不同需求,气球必须设计内部限阻部件(intemal restraint)或外部限阻部件(extemal restraint),例如参见上述美国专利第6066154号,或特殊设计的扩孔装置,例如美国专利第6235043号,使得气球的制造及使用相对而言比较困难。 However, the device or method has many disadvantages, for example: the balloon must be connected to the filling mouth (nc) zzle), and therefore high pressure liquid poured, the balloon may cause the phenomenon of falling from the filling mouth; Furthermore, to meet the different needs, the balloon must be interior design limit barrier member (intemal restraint) or external current limiting resistor member (extemal restraint), the above-described example, see U.S. Pat. No. 6,066,154, or reaming apparatus specially designed, for example, U.S. Patent No. 6,235,043, so that the manufacture and use of the balloon relatively For more difficult. 本发明利用一体成形的扩孔本体做为骨科用扩孔装置主体,可以同时解决上述传统扩孔装置的各种缺点。 The present invention utilizes integrally molded with the reamer reaming body as orthopedic device body, can solve the above disadvantages of the conventional apparatus while reaming. 发明内容 SUMMARY

本发明的一目的在于提供一种骨科用扩孔装置。 An object of the present invention is to provide an orthopedic device by reaming.

本发明的另一目的在于提供一种具有的预成型扩孔腔的闭口管体骨科用扩孔装置。 Another object of the present invention is to provide a preform having a tubular body closed cavity reamer with orthopedic reaming apparatus.

本发明的又一目的在于提供一种具有的预膨胀扩孔腔的闭口管体骨科用扩孔装置。 A further object of the present invention is to provide a reamer having a pre-expansion chamber is closed by the tubular body orthopedic reaming apparatus.

实施方式 Embodiment

本发明的骨科用扩孔装置,其包括:一扩孔本体,其为一端开口一端闭口的管体;及一连接器,其是和该扩孔本体的开口端结合; Orthopedic reaming apparatus of the present invention, comprising: a reaming body, the tubular body closed at one end thereof to an opening at one end; and a connector, which is an open end of the reamer body and binding;

其特征是:该扩孔本体的闭口端或近闭口端处具有一预成型的扩孔腔,且该扩孔本体含该预成型的扩孔腔是一体成形者。 Characterized in that: the closed end of the counterbore of the body at or near the closed end having a preformed cavity reamer, the reamer and reamer body containing the preform chamber are integrally molded.

上述扩孔本体为手术过程中的工具,因此,宜由具有相当弹性且对人体无害的材质所制成,以采用具生物兼容性的聚合物为更佳,例如可用PU(聚 Above the reamer body during a surgical tool, therefore, it should be quite elastic and harmless to human body made of a material, having a biocompatible polymer employed is more preferably having, for example, available PU (poly

氨酯,Poly-Urethane)、硅胶(silicone rubber)等。 Urethane, Poly-Urethane), silica gel (silicone rubber) and the like.

上述该扩孔腔是位于该扩孔本体的闭口端或近闭口端处,以位于该扩孔本体的近闭口端处为较佳。 The chamber is above the closed end of the reamer of the reamer body is positioned near or at closed end, the reamer to be located near the closed end of the body is preferred. 上述预成型扩孔腔,可为诸如注入成型、模塑成型、预膨胀成型、模塑预膨胀成型等,以模塑预膨胀成型为较佳。 Reaming above preform chamber may be such as injection molding, molding, pre-expansion molded, the molding pre-expansion molding or the like, to mold the pre-expanded to form preferred. 此处所谓模塑预膨胀成型,参见图9A至9C、图10A至10C及其说明。 Here, the term pre-mold expansion molded, referring to FIGS. 9A-9C, 10A to 10C and FIG.

上述该管体在接近扩孔腔附近,必要时,可具有一弯曲部,用以符合扩孔部位不在导引针的导引方向时的手术需求。 The above-mentioned tubular body near the cavity near the reamer, if necessary, may have a curved portion, to meet the need for surgery when the reaming portion is not guided by the guide direction of the needle.

上述该管体外围必要时可进一步含一保护管,用以在扩孔时,避免非扩孔腔部份的不当扩大。 May further contain a protective tube when said tube the necessary peripheral to the hole expansion, to avoid improper expansion of non-cavity part of the reamer. 该保护管和该管体的结合方式,可用任一已知结合方式,例如卡合。 The binding mode of the protective tube and the tubular body, can be used in conjunction with any known manner, such engagement.

上述该管体内部必要时进一步含一导灌针,用以方便将扩孔本体含扩孔腔导入待扩孔部位,及用以经由该导灌针将液体(通常使用水)灌入扩孔腔中。 Above further comprising a guide member when the needle filling the interior of the tube is necessary to facilitate the reaming body cavity containing reamer reaming portion to be introduced, and for filling via the guide pin of the liquid (typically water) poured into the counterbore cavity. 该导灌针和管体结合方式,可为任意已知的方式,包括单纯将该导灌针置入管体中。 The irrigation needle and guide tubes binding mode, may be any known manner, including simple filling needle into the guide tube body. 若属后者,则导灌针外径宜约等于该管体内径。 If the latter case, the outer diameter of the needle should guide irrigation approximately equal to the diameter of the tubular body.

上述该扩孔本体和该连接器的结合方式,可为任意已知的结合方式。 The embodiment described above in conjunction with the reamer body and the connector, may be any known bonding method. 由于扩孔本体和该连接器的结合处是在体外,因此以黏合方式为较佳。 Since the junction of the counterbore and the connector body is in vitro, and therefore bonding manner is preferred.

上述连接器,其形状并无特定限制。 The connector, which shape is not particularly limited. 但因该连接器必须外接三通管、灌枪或软管,因此其外接处必要时可置一连接部,例如设置螺合部。 But it must be external of the tee connector, irrigation hose or gun, so it can be set at an external connecting portion, if necessary, provided e.g. screwed portion. 又该连接 Should the connection

器可为任意已知连接器,例如亦可采用三通管做为连接器,参见下述图8-A、8-B。 May be any known connector, for example, you can use as a tee connector, see the following FIG 8-A, 8-B.

为进一步说明本发明,兹以较佳具体例配合图式说明如下:.附图说明 To further illustrate the present invention, the preferred specific embodiments with hereby drawings described below: BRIEF DESCRIPTION OF DRAWINGS

图1至5分别为本发明第1至5较佳具体例。 1 to 5 are 1 to 5 of the present preferred embodiment of the invention specifically.

图6-A、 6-B为本发明第6较佳具体例,其中图6-A为爆炸图,图6-B为结合图。 FIG 6-A, 6-B of the present invention, a sixth preferred specific embodiment, in which FIG. 6-A is an exploded view, FIG. 6-B binds FIG.

图7-A、 7-B为本发明第7较佳具体例,其中图7-A为爆炸图,图7-B为 FIGS. 7-A, 7-B 7 of the present invention, preferred specific embodiment, wherein FIG. 7-A is an exploded view of FIG. 7-B

结合图。 In conjunction with FIG.

图8-A、 8-B为本发明第8较佳具体例,其中图8-A为爆炸图,图8-B为 FIG. 8-A, 8-B of the present invention is the eighth preferred specific embodiment, in which FIG. 8-A is an exploded view of FIG. 8-B

结合图。 In conjunction with FIG.

图9_A至9-C为本发明第2较佳具体例的制造流程示意图。 FIG 9_A to 9-C of the present process for producing a second specific preferred embodiment of the invention, a schematic view. 图10-A至10-C为本发明另一(第9)较佳具体例的制造流程示意图。 FIG. 10-A through 10-C a schematic view of another preferred process for producing specific example (9) of the present invention. 图ll-A至图ll-I为本发明使用时的流程示意图。 Ll-A through FIG. Ll-I schematic flow diagram when using the present invention. 附图标记 Reference numerals

1.扩孔本体 IIA、 IIB、 IIC、 11D.扩孔腔 1. reaming body IIA, IIB, IIC, 11D. Reaming chamber

12.管体 121.扩孔 12. The tubular body 121. The reamer

122.保护管 13.弯曲部 13. The curved portion 122. The protective tube

14.导灌针 2A、 AB、 2C、 2D.连接器 14. A guide pin irrigation 2A, AB, 2C, 2D. Connector

3.三通管 31.导通纽 3. conduction tee 31. New

51.导引管 52.螺旋钻孔器 51. The guide tube 52. The helical drill

53.注射筒 54.高压灌枪接管 53. 54. The high-pressure irrigation syringe gun to take over

55.高压灌枪 6.椎体 55. The high-pressure irrigation gun 6. vertebrae

7.模具 71A、 71B.模具孔 7. The mold 71A, 71B. Die holes

具体实施方式 Detailed ways

图1中1为本发明扩孔装置的扩孔本体,2A为本发明扩孔装置的连接器,而11A和12分别为扩孔本体1的扩孔腔和管体,111为扩孔腔IIA尾端的保护部,用以防止导引针刺破该扩孔腔11A。 In Figure 1 the body 1 of the present reamer reaming apparatus of the present invention, 2A reaming apparatus of the present invention, the connector, 12 and 11A, respectively, and the reamer reaming body cavities and tubular body 1, the cavity 111 is reaming IIA protection of the trailing end portion for preventing needle break the reamer guide chamber 11A. 其中扩孔本体1为一体成形的TPU(Thermal elastic Poly-Ureathane)管体,扩孔腔为注入成形的扩孔腔,而该扩孔本体1和该连接器2A是以瞬间胶结合。 Wherein the reamer body 1 as TPU (Thermal elastic Poly-Ureathane) tubular body, is integrally formed cavity reamer reaming injection molding cavity, while the reaming body 1 and the connector 2A is instant glue binding.

图2类同图1,标号1、2A、 111、 12定义都和图1相同,唯其中11B为预膨胀并部份恢复原状的扩孔腔,不同于图1为注入成形的扩孔腔。 2 similar to FIG. 1, reference numeral 1,2A, 111, 12 and 1 are the same as defined, wherein the only portion 11B is the pre-expansion and restitution reaming a cavity, 1 is different from the injection molding cavity reamer. 图3类同图2,唯该扩孔腔11C不含保护部(图2中标号111)。 Figure 3 similar to FIG. 2, only the portion free of the protective chamber of the reamer. 11C (reference numeral 111 in FIG. 2). 图4类同图2,唯该扩孔腔11B和该管体12间,有一弯曲部13。 FIG 2 similar to FIG. 4, only the reaming a cavity 11B and the bent portion of the tubular body 12, 13. 图5类同图4,唯该扩孔本体l中,进一步含一导灌针14,该导灌针14是卡合于该扩孔本体l内部,唯必要时,亦可改变其结合方式,例如使该导灌针14和该扩孔本体1的开口部胶合,或使该导灌针14和该连接器2A卡合或扣合等。 FIG 5 similar to FIG. 4, only the reamer body l, and further comprising a guide pin 14 filling, the filling needle guide 14 is engaged with the interior of the reamer body l, when the only necessary, can change the binding mode, for example the filling needle guide aperture 14 and the counterbore portion gluing body 1, or so that the guide pin 14 and the irrigation connector 2A or snap engagement and the like.

图6-B类同图5,唯其扩孔本体1不含弯曲部(图5中标号13)。 FIG. 6-B similar to FIG. 5, only the reamer body 1 which is free of the bent portion (reference numeral 13 in FIG. 5). 图6-A为图6-B的爆炸图。 FIG 6-A 6-B is a diagram of an exploded view.

图7-A和7-B类同图6-A和6-B,但进一步含一三通管3,该三通管3和该连接器2A是以黏合方式结合,唯熟知此项技艺人士均知可用诸如卡合、扣合等任意已知方式取代之。 FIGS. 7-A and 7-B, and similar to FIG. 6-A 6-B, but 3 further comprising a tee, the tee connector 3 2A and the adhesive is incorporated, the only persons known to this art They are known to be used as substituents of engagement, snap-fit, etc. in any known manner.

图8-A、 8-B类同图2,但以三通管3直接作为连接器,为配合市售三通管,本实施例的管体12的开口端有一扩口部121,用以和该三通管黏合,其中图8-A为爆炸图,图8-B为结合图。 FIG. 8-A, 8-B similar to FIG. 2, but directly as tee connector 3, is a commercially available mating tee, the open end of the tubular body 12 of the present embodiment has a flared portion 121 for and bonding the tee, wherein FIG. 8-A is an exploded view, FIG. 8-B binds FIG.

图9_A至9-C为本发明第2较佳具体例的制造流程示意图,其中图9-A显示将含尚未完成预膨胀的扩孔本体导入模具7的模孔(71A)中;图9-B显示以高压灌枪(图中未示)将水灌入,使扩孔本体靠近闭口处预膨胀成模孔71A的形状,如标号11B所示;图9-C显示抽出扩孔装置中的水,并将该扩孔装置抽离模具,此时,扩孔腔部份恢复原状。 FIGS. 9-C 9_A to the second preferred manufacturing process of the present invention shows a specific embodiment, wherein FIG. 9-A has not been completed displays containing pre-expanded reaming holes in the die body 7 is introduced into the die (71A); and Figure 9 B shows a high pressure filling gun (not shown) the water poured into the near shape of the reamer body 71A closed at the die orifice into the pre-expansion, shown as reference numeral 11B; FIG. 9-C show extraction reaming device water, pulled out of the mold and the reaming device, this time, part of the cavity reamer restitution.

图10-A至图10-C分别类同图9-A至9-C,唯该模具7具有和图9所示不同形状的模孔71B—双峰形模孔,因此制成双峰形的扩孔腔。 FIG 10-A to 10-C are similar to FIGS. 9-A 9-C, the mold 7 having a CD 71B- bimodal die orifice and the orifice 9 of different shapes, thus formed bimodal reaming cavities. 图10-B中11D为灌满水时扩孔腔的形状,图10-C中11D为放水后部份恢复原状的扩孔腔。 10-B in FIG. 11D is filled with water when the shape of the cavity reaming, 10-C in FIG. 11D restitution after reaming portion drainage chamber.

图11-A显示:将螺旋钻孔器52经由导引管51,钻入椎体6;图11-B显示:螺旋钻孔器52钻入椎体6,形成孔洞61;于钻孔完成后,取出螺旋钻孔器52,但导引管51则暂时保留(图中未显示);图11-C显示:将本发明扩孔 FIG 11-A show: spiral drill 52 via a guide tube 51, 6 drilled into the vertebral body; FIG. 11-B show: spiral drill 52 drill into the vertebral body 6, holes 61 are formed; the borehole after completion remove spiral drill 52, the guide tube 51 but escrow (not shown); FIG. 11-C show: the present invention reamer

6装置接上三通管3,三通管中一管接注射筒53, 一管接高压灌枪55的接管54,并转动三通管上的导通纽31,使高压灌枪55透过接管54和本发明扩孔装置的扩孔本体的导灌针14导通,而注射筒53则和上述二者则不导通,本较佳具体例中,扩孔本体外围具有保护套122,内部则含导灌针14;图11-D显示将高压灌枪55中的水,经由导灌针14预灌于扩孔腔11B中;图11-E显示:转动三通管上的导通纽31,使注射筒53和本发明扩孔装置的扩孔本体的导灌针14导通,而高压灌枪55及接管54,则和上述二者不导通,并由注射筒53抽出本发明扩孔装置中的水及空气,使本发明扩孔装置内部形成部份真空(内部压力小于一大气压)或实质真空状态;图11-F显示:将图11-E状态下的本发明扩孔装置的扩孔本体插入图11-B移走螺旋钻孔器52后的导引管51中,并转动三通管上的导通纽31,使高压灌枪55透过 6 apparatus 3 connected to tee, a tee connection in the syringe 53, connected to a high pressure filling gun 54 55 to take over and turned New York on the rotation tee 31, through the high-pressure filling gun 55 take over the reaming body 54 and the counterbore apparatus of the present invention is a guide pin 14 filling turned on, and the syringe 53 is not turned on, and both the above, this particular preferred embodiment, the reaming body having a peripheral protective sleeve 122, filling the interior of the guide pin containing 14; FIG. 11-D displays in high-pressure water filling gun 55, via a guide pin 14 filling the pre-filling chamber to the reamer. 11B; FIG. 11-E show: rotatably turned on tee 31 New York, filling the guide pin 53 and the syringe body, the reamer reaming apparatus of the present invention 14 is turned on, while the high pressure gun 55 and take over the filling 54, and both the above-described non-conducting, the syringe 53 by this extraction reaming apparatus of the invention in water and air, the interior portion reaming apparatus of the present invention formed a vacuum (an internal pressure less than one atmosphere) or substantial vacuum state; FIG. 11-F show: the present invention in expanded state in FIG. 11-E reaming device into body aperture 11-B of FIG 51 after removal of guide tube 52 in a helical drill, turned and rotated on the tee 31, New York, filling gun 55 via the high-pressure 管54和本发明扩孔装置的扩孔本体的导灌针14导通,而注射筒53则和上述二者不导通;图11-G显示:图11,F中本发明扩孔装置的扩孔腔11B在椎体6中的样态;图11-H显示:将高压灌枪55中的水,经由导灌针14灌入扩孔腔11B中,使扩孔腔11B膨胀至预期大小,用以几开松质骨;图11-I显示:图11-H中本发明扩孔装置的扩孔腔11B在椎体6中的样态。 Irrigation syringe reaming guide body 54 and the counterbore apparatus of the present invention 14 is turned on, and the syringe 53 and both the above-described non-conducting; FIG. 11-G show: FIG. 11, F reaming apparatus of the present invention reaming a cavity in the vertebral body 11B like state. 6; FIG. 11-H show: filling the high pressure water gun 55, via a guide pin 14 filling the cavity poured counterbore 11B, counterbore so that the expansion chamber 11B to the desired size for several bone opening; FIG. 11-I show: FIG. 11-H cavity reamer reaming apparatus in the present invention, in the vertebral body 11B 6 like state. 至此,己达成椎体扩孔目的。 At this point, we have reached a vertebral reamer purpose. 此后,重复类同图11-E的除水,使扩孔腔11B又收縮成原状,以利由椎体取出本发明扩孔装置(图中未示)。 Thereafter, water removal is repeated analogous to FIG. 11-E, so that the reamer 11B has shrunk to its original state chamber to facilitate reaming apparatus of the present invention taken (not shown) from the vertebral body.

上述图11-C、 ll-D、 ll-D,在体外预灌水,再抽出扩孔腔11B中的水和空气,虽非绝对必要,但可防止体内灌水不慎,造成扩孔腔11B破裂,致使原来在扩孔腔中的空气导致血栓的意外。 The above-described FIG. 11-C, ll-D, ll-D, in vitro pre-irrigation, and then reaming chamber 11B out of the water and air, though not absolutely necessary, but prevents inadvertent irrigation body, resulting in rupture of reaming a cavity 11B , so that the original counterbore air chamber cause unexpected thrombus.

本发明的扩孔装置,其和灌枪或三通管的结合处,是在体外,因此,即使松脱,也不会造成手术上的困扰。 Reaming apparatus of the present invention, and filling guns or tee junction, in vitro, and therefore, even loose, it will not cause trouble in the operation. 背景技术所揭示的气球扩孔术中,气球和灌嘴的结合处却在体内,例如椎体中或骨髓腔中,若手术中,气球和灌嘴的结合松脱,将会造成手术上的极大困扰。 BACKGROUND reaming technique disclosed balloons, the balloon and the filling mouth at the junction, but in vivo, for example, the vertebral bodies or bone marrow cavity, when the binding operation, the balloon and the filling mouth of loose, will result in the operation great distress.

再者,由图9-A、 9-B、 9-C、 IO-A、 IO-B、 10-C及其说明所显示的制造流程,可知本发明的扩孔装置,其制造模式简单易行。 Note that, in FIG. 9-A, 9-B, 9-C, IO-A, IO-B, 10-C and described manufacturing process shown, the reaming apparatus of the present invention found that simple and easy manufacturing model Row. 而由图ll-A至图11-1及其说明可以明确看出:使用本发明扩孔装置时,其手术方法比传统气球扩孔手术简单,安全性也较高。 Figure 11-1 and its description to be clearly seen from Figure ll-A: When using the reaming apparatus of the present invention, which is simpler than the conventional surgical balloon reaming operation, the safety is also high.

7 7

Claims (9)

1.一种骨科用扩孔装置,其包括: 一扩孔本体,其为一端开口一端闭口的管体;及一连接器,其是和该扩孔本体的开口端结合; 其特征是:该扩孔本体的闭口端或邻接闭口端处具有一预成型的扩孔腔,且该扩孔本体含该预成型的扩孔腔是一体成形者。 An orthopedic use reaming device comprising: a reaming body, the tubular body closed at one end thereof to an opening at one end; and a connector, which is a main body and an open end of the counterbore binding; characterized in that: the reaming body or the closed end adjacent a closed end having a preformed cavity reamer and the reaming body containing the preform chamber reamer is integrally molded.
2. 如权利要求1所述的扩孔装置,其中该预成型的扩孔腔为一预膨胀的扩孔腔。 Said reaming apparatus as claimed in claim 1, wherein the preformed cavity is a reamer reaming pre-expanded cavity.
3. 郊权利要求2所述的扩孔装置,其中该管体于邻接扩孔腔处有一弯曲部。 3. reaming apparatus according to claim rural, wherein the tubular body adjacent to the counterbore cavity with a curved portion.
4. 如权利要求2或3所述的扩孔装置,其中该管体内部进一步含一导灌针。 Reaming apparatus 2 or as claimed in claim 3, wherein the irrigation tube further comprising a guide member inside the needle.
5. 如权利要求2或3所述的扩孔装置,其中该管体外部进一步含一保护管。 5. reaming apparatus of claim 2 or claim 3, wherein the outer tubular body further comprising a protective tube.
6. 如权利要求4所述的扩孔装置,其中该管体外部进一步含一保护管。 Reaming apparatus as claimed in claim 4, wherein the outer tubular body further comprising a protective tube.
7. 如权利要求4所述的扩孔装置,其中该连接器为三通管。 7. reaming apparatus according to claim 4, wherein the connector is a tee.
8. 如权利要求5所述的扩孔装置,其中该连接器为三通管。 Reaming apparatus as claimed in claim 5, wherein the connector is a tee.
9. 如权利要求6所述的扩孔装置,其中该连接器为三通管。 9. reaming apparatus according to claim 6, wherein the connector is a tee.
CN 200510095869 2005-09-06 2005-09-06 Hole enlarging device for orthopedics department CN100569192C (en)

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CN105011993B (en) * 2014-04-17 2018-06-01 思必瑞特脊椎股份有限公司 Bone fixation device

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