CN103654928A - Self-releasing-type internal fracture fixation system - Google Patents

Self-releasing-type internal fracture fixation system Download PDF

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Publication number
CN103654928A
CN103654928A CN201310670048.9A CN201310670048A CN103654928A CN 103654928 A CN103654928 A CN 103654928A CN 201310670048 A CN201310670048 A CN 201310670048A CN 103654928 A CN103654928 A CN 103654928A
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CN
China
Prior art keywords
fixation system
bone
self
fracture fixation
screw
Prior art date
Application number
CN201310670048.9A
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Chinese (zh)
Inventor
徐斌
Original Assignee
徐斌
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 徐斌 filed Critical 徐斌
Priority to CN201310670048.9A priority Critical patent/CN103654928A/en
Publication of CN103654928A publication Critical patent/CN103654928A/en

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Classifications

    • 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
    • A61B17/80Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • 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
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor

Abstract

The invention belongs to the field of medical apparatus and instrument equipment, and relates to a main instrument used during a fracture surgery, in particular to a self-releasing-type internal fracture fixation system which comprises a bone setting plate. At least two screw holes are formed in the bone setting plate in a penetrating mode. A bone setting screw is connected into each screw hole. The self-releasing-type internal fracture fixation system is characterized in that a cushion layer is arranged on the bone setting plate, a screw sleeve is connected to a screw body of each bone setting screw, degradation and absorption biological materials can be implanted into the cushion layer, and degradation and absorption biological materials can be implanted into the screw sleeve. The self-releasing-type internal fracture fixation system is simple in structure and ingenious in concept, the problem that stress shielding and temperature transmission stimulation exist in an existing internal fixation system can be effectively solved, and meanwhile the self-releasing-type internal fracture fixation system can be conveniently disassembled after a fracture is healed.

Description

自松解型骨折内固定系统 Since fracture fixation system necrolysis

技术领域 FIELD

[0001] 本发明属于医疗器械设备领域,涉及一种在进行骨折手术时使用的主要器械,具体地说是一种自松解型骨折内固定系统。 [0001] The present invention belongs to the field of medical devices equipment, involving mainly one kind of apparatus used for performing fracture, in particular an internal fracture fixation system from lysis.

背景技术 Background technique

[0002] 在进行骨折手术时,金属接骨板及金属接骨钉组成的内固定系统,可以给病人骨折部位提供坚强的内固定,是当前临床上广泛使用的内固定系统,但是在长期的使用中发现这种内固定系统也存在很多缺陷,主要是:一、接骨板及接骨钉均为金属制品,在进行内固定时,接骨板及接骨钉均直接与骨及周围组织接触,存在较大温度刺激;二、接骨板对骨骼生理应力造成分流,导致骨骼强度降低、愈合延迟,即接骨板会造成应力遮挡;三、接骨板与接骨钉嵌入骨及周围组织中,待骨折愈合后,不利于接骨板及接骨钉的拆除。 [0002] During fractures, bone plate internal fixation and metal staples consisting of metal bone, the fracture site may be provided to the patient rigid internal fixation, the fixation system is currently widely used in clinic, but long-term use this stabilization system is also found there are many defects, mainly: a bone plate and bone are metal staples, fixed, bone nails and bone plate are in direct contact with bone and surrounding tissue is performed, there is a large temperature stimulation; Second, the bone plate caused physiological stress bone shunt, resulting in bone strength reduction, delayed healing, i.e. a bone plate causes stress shielding; three bone plate and bone nails embedded in the bone and surrounding tissue, until fracture healing, is not conducive to bone plate and bone nail removed.

发明内容 SUMMARY

[0003] 本发明的目的在于克服现有技术中存在的不足,提供一种结构简单、巧妙、合理的自松解型骨折内固定系统,该固定系统可以渐渐自行消除应力遮挡并在骨折愈合后方便快捷地进行拆除。 [0003] The object of the present invention is to overcome the disadvantages present in the prior art, providing a simple, ingenious, since reasonably necrolysis fracture fixation system, the fastening system may itself gradually eliminate stress fracture healing and shielding quickly and easily removed.

[0004] 按照本发明提供的技术方案:一种自松解型骨折内固定系统,包括接骨板,所述接骨板上贯穿设置有至少两个螺钉孔,每个所述螺钉孔中均连接有接骨钉,其特征在于:所述接骨板上设有垫层,接骨钉在使用时表面连接有钉套,所述垫层为可植入降解吸收生物材料垫层,所述钉套为可植入降解吸收生物材料钉套。 [0004] according to the aspect of the present invention provides: the release from the fracture fixation system, comprising a bone plate, the bone plate is provided with at least two screw through-holes, each of which is connected with a screw hole a bone screw, wherein: said bone plate is provided with cushion, bone nail surface of the connecting sleeve during use staple, the underlayer implantable biomaterial degraded and absorbed cushion, the staple sleeve is implantable biomaterial degraded and absorbed into the nail sets.

[0005] 作为本发明的进一步改进,所述垫层将接骨板的全部或局部包裹。 [0005] As a further improvement of the present invention, the mat entirely or partially wrap the bone plate.

[0006] 作为本发明的进一步改进,所述钉套外表面设有凸起纹理。 [0006] As a further improvement of the present invention, the outer surface of the sleeve is provided with projections staple texture.

[0007] 作为本发明的进一步改进,所述钉套底部外圆周面均布开设有数条沿轴向延伸的条形槽。 [0007] As a further improvement of the invention, the staple sleeve outer circumferential surface of the bottom bar are formed with a plurality of cloth strips axially extending grooves.

[0008] 作为本发明的进一步改进,所述钉套外表面设有凸起纹理,并同时在钉套底部外圆周面均布开设有数条沿轴向延伸的条形槽。 [0008] As a further improvement of the present invention, the outer surface of the sleeve is provided with projections staple texture, while at the bottom of the outer circumferential surface of the staple sleeve stripe grooves are formed with a plurality of cloth strips extending in the axial direction.

[0009] 本发明与现有技术相比,优点在于:本发明产品结构简单、构思巧妙,可以有效避免现有内固定系统存在的应力遮挡及温度传递刺激问题,同时本产品在骨折愈合后拆除方便。 [0009] Compared with the prior art, is advantageous in that: the product is simple in structure, ingenious, can effectively avoid the problems of the prior internal fixation temperature stress shielding and deliver stimulation problem, while present in the product after removal of fracture healing Convenience.

附图说明 BRIEF DESCRIPTION

[0010] 图1、2为本发明的结构示意图。 [0010] FIG. 2 is a schematic structural diagram of the present invention.

[0011] 图3、4、5为钉套的结构示意图。 [0011] FIGS. 3,4,5 schematic structural view of the staple sleeve.

具体实施方式 Detailed ways

[0012] 下面结合具体附图和实施例对本发明作进一步说明。 [0012] The following specific embodiments in conjunction with the drawings and embodiments of the present invention will be further described. [0013] 如图1飞所示,包括接骨板1、接骨钉2、钉套3、垫层4、凸起纹理5、条形槽6、骨头 [0013] As shown in FIG fly 1, comprising a bone plate, a bone nail 2, the staple sleeve 3, the cushion 4, the projections 5 texture, deep grooves 6, bone

7坐 Sitting 7

1-rj- ο 1-rj- ο

[0014] 如图1飞所示,本发明一种自松解型骨折内固定系统,包括接骨板1,所述接骨板1上贯穿设置有至少两个螺钉孔,每个所述螺钉孔中均连接有接骨钉2,所述接骨板1上设有垫层4,接骨钉2在使用时表面连接有钉套3,所述垫层4为可植入降解吸收生物材料垫层,所述钉套3为可植入降解吸收生物材料钉套。 [0014] As shown in FIG. 1 fly, the present invention is releasable from the fracture fixation system, comprising a bone plate 1, provided with at least two through-screw holes of the bone plate 1, each of the screw hole 2 are connected to a bone nail, with cushion 4, the surface of the bone nail 2 in use is connected staple sleeve 3, the underlayer 4 implantable biomaterial degraded and absorbed on the cushion plate 1 to the bone, the staple cover 3 implantable biomaterial degraded and absorbed nail sets.

[0015] 如图1、图2所示,所述垫层4将接骨板1的全部或局部包裹,图1中所示的接骨板1表面均被垫层4包覆住,图2所示的接骨板1底部表面设置有一层垫层4。 [0015] As shown in FIG 1, FIG. 2, the cushion 4 will be fully or partially bone plate package 1, the surface of the bone plate shown in FIG. 1 in a cushion layer 4 are coated to live, as shown in FIG. 2 a bottom surface of the bone plate 1 is provided with a cushion layer 4.

[0016] 如图4所示,所述钉套3外表面设有凸起纹理5,该凸起纹理5可以为凸起的小孔或突出钉套3表面的花纹,以便于增加摩擦力。 [0016] As shown, the outer surface of the sleeve 3 is provided with the staple texture projection 5, the projection 5 may be raised texture or pores staple sleeve projecting surface patterns 3, 4 in order to increase friction.

[0017] 如图3所示,所述钉套3底部外圆周面均布开设有数条沿轴向延伸的条形槽6,通过条形槽6以产生膨胀胀紧效果。 [0017] As shown in FIG. 3, the staple sleeve outer circumferential surface of the base 3 are formed with a plurality of cloth strips axially extending groove strip 6, 6 through the deep grooves to produce expansion swelling effect. [0018] 如图5所示,所述钉套3外表面设有凸起纹理5,并同时在钉套3底部外圆周面均布开设有数条沿轴向延伸的条形槽6。 [0018] As shown in FIG. 5, the outer surface of the sleeve 3 is provided with the staple texture protrusion 5, while the circumferential surface formed with a plurality of cloth strips are axially extending grooves 6 on the outer bottom of the strip-shaped staple sleeve 3.

[0019] 本发明产品结构简单、构思巧妙,通过在现有接骨板1表面设置由可植入降解吸收生物材料制成的垫层4层,并在接骨钉钉体上设置由可植入降解吸收生物材料制成的钉套3,形成新的内固定系统;该内固定系统具有以下特点:既具有金属钉、板的强度,可以满足临床内固定的需要,又能通过可植入降解吸收生物材料的逐渐降解吸收,逐步松动接骨钉2与接骨板1,从而达到松懈内固定系统以逐渐消除应力遮挡的目的,使骨折愈合更加牢固;通过垫层及钉套隔离接骨板1、接骨钉2与骨及周围组织,降低温度传递刺激,垫层4及钉套3在被人体降解吸收后,可使接骨钉2及接骨板1不易嵌入骨及周围组织,有利于接骨钉2及接骨板1的拆除;由于可植入降解吸收生物材料制成的钉套3及垫层4的强度通常比较低,可提供与骨膜等组织的软接触,有利于骨折部位的血 [0019] The structure of the present invention, a simple product, ingenious, degradation of layer 4 on a surface of the implantable bone plate is provided prior cushion made of a biological material absorbed in the bone and is provided by an implantable staple degradation biological material nail absorbent sleeve 3, to form a new fixation system; the stabilization system has the following characteristics: having both metal studs, the strength of the plate, internal fixation meet clinical needs, but also degraded and absorbed by the implantable gradually absorbing biodegradable material, 2 gradually loose bone staple bone plate 1, so as to achieve the gradual elimination of slack fixation system to stress shielding purposes, the fracture healing more firmly; separator through a pad cover and staple bone plate 1, bone nails 2 and bone and surrounding tissue, reducing the temperature deliver stimulation, the cushion 4 and the nail in the sleeve 3 to be absorbed by the body after degradation, and allows the bone staple bone plate 1 2 easily fitted bone and surrounding tissue, and is conducive to bone staple bone plate 2 1 dismantled; as degradation and absorption intensity implantable biomaterial made staple sleeve 3 and 4 is usually lower cushion can provide soft contact with the periosteum tissue, blood favor the fracture site ,同时上述钉套3及垫层4具有一定的弹性,能使骨折端产生细微的活动刺激,促进成骨细胞的生长和骨痂的形成。 While above the nail cushion sleeve 3 and 4 has a certain elasticity, can produce subtle fracture stimulation activities, promote the formation and growth of callus osteoblasts.

[0020] 本发明产品中的垫层4及钉套3均由可植入人体、可被人体降解吸收的生物材料制成,目前主要采用的生物材料是聚乳酸(PLLA)、聚乳酸乙醇酸共聚物(PLGA)、聚丙交酯共聚物、丙交酯乙交酯共聚物等。 [0020] The products of the invention cushion 4 and the sleeve 3 by the nail can be implanted in a body, the body may be made of biological material degraded and absorbed, mainly biological material used is polylactic acid (of PLLA), polylactic acid copolymer (PLGA), polylactide copolymer, lactide-glycolide copolymers.

[0021] 如图1、图2所示,本产品在使用时,先在骨头骨折部位的两侧分别打孔,然后将钉套3置入打好的孔中,并用接骨钉2将接骨板1固定于骨头7上,具体是接骨钉2旋设入钉套3内,钉套3张紧于打好的孔中。 [0021] As shown in FIG 1, shown below, when using this product, the first punch 2, respectively, on both sides of the fracture site in the bone and nail collet bore 3 into the lay, and with the bone staple bone plate 2 1 7 is fixed to the bone, in particular a bone screw disposed staple 2 into the sleeve 3 nail, the nail holes in the tensioned sleeve 3 of lay.

Claims (5)

1.一种自松解型骨折内固定系统,包括接骨板(1),所述接骨板(1)上贯穿设置有至少两个螺钉孔,每个所述螺钉孔中均连接有接骨钉(2),其特征在于:所述接骨板(1)上设有垫层(4),接骨钉(2)在使用时表面连接有钉套(3),所述垫层(4)为可植入降解吸收生物材料垫层,所述钉套(3)为可植入降解吸收生物材料钉套。 A self-release the fracture fixation system comprises a bone plate (1), said bone plate (1) is provided with at least two through screw holes on each of the screw holes are connected to a bone nail ( 2), wherein: said bone plate is provided with (1) the cushion (4), bone nails (2) in use connected staple sleeve surface (3), said cushion (4) to be implanted degradation of the biomaterial absorbent mat, the staple sleeve (3) implantable biomaterial degraded and absorbed nail sets.
2.如权利要求1所述的自松解型骨折内固定系统,其特征在于:所述垫层(4)将接骨板(1)的全部或局部包裹。 Since necrolysis fracture fixation system according to claim 2, characterized in that: (4) the bone plate (1) is entirely or partially wrap the underlayer.
3.如权利要求1所述的自松解型骨折内固定系统,其特征在于:所述钉套(3)外表面设有凸起纹理(5)。 Since necrolysis fracture fixation system according to claim 1, wherein: said nail cover (3) is provided with an outer convex surface texture (5).
4.如权利要求1所述的自松解型骨折内固定系统,其特征在于:所述钉套(3)底部外圆周面均布开设有数条沿轴向延伸的条形槽(6 )。 4. The self necrolysis fracture fixation system according to claim 1, wherein: said nail cover (3) outer peripheral surface of the bottom cloth are formed with a plurality of axially extending strips stripe groove (6).
5.如权利要求1所述的自松解型骨折内固定系统,其特征在于:所述钉套(3)外表面设有凸起纹理(5), 并同时在钉套(3)底部外圆周面均布开设有数条沿轴向延伸的条形槽(6)。 5. The self necrolysis fracture fixation system according to claim 1, wherein: said nail cover (3) is provided with an outer convex surface texture (5) and simultaneously staple the outer jacket bottom (3) uniform circumferential surface of the stripe-shaped grooves formed with a plurality (six) of axially extending.
CN201310670048.9A 2013-12-10 2013-12-10 Self-releasing-type internal fracture fixation system CN103654928A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106420024A (en) * 2016-08-31 2017-02-22 苏州西脉新诚生物科技有限公司 Bone screw covered with soft material

Citations (8)

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Publication number Priority date Publication date Assignee Title
GB1575161A (en) * 1977-03-25 1980-09-17 Merck Patent Gmbh Sleeve for surgical nails
US4338926A (en) * 1980-11-21 1982-07-13 Howmedica, Inc. Bone fracture prosthesis with controlled stiffness
EP0206767A2 (en) * 1985-06-22 1986-12-30 Surgicraft Limited Bone fixation plates
US5108399A (en) * 1988-09-17 1992-04-28 Boehringer Ingelheim Gmbh Device for osteosynthesis and process for producing it
CA2315490A1 (en) * 2000-08-11 2002-02-11 Terray Corporation Bone plate
CN1442120A (en) * 2003-04-11 2003-09-17 四川大学 Surface active strong internal fixed titanium bone connection plate and its making method
CN201213835Y (en) * 2008-05-20 2009-04-01 郁建华 Biological activity absorbable fracture internal fixation device
CN203677226U (en) * 2013-12-10 2014-07-02 徐斌 Self-releasing internal fracture fixation system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1575161A (en) * 1977-03-25 1980-09-17 Merck Patent Gmbh Sleeve for surgical nails
US4338926A (en) * 1980-11-21 1982-07-13 Howmedica, Inc. Bone fracture prosthesis with controlled stiffness
EP0206767A2 (en) * 1985-06-22 1986-12-30 Surgicraft Limited Bone fixation plates
US5108399A (en) * 1988-09-17 1992-04-28 Boehringer Ingelheim Gmbh Device for osteosynthesis and process for producing it
CA2315490A1 (en) * 2000-08-11 2002-02-11 Terray Corporation Bone plate
CN1442120A (en) * 2003-04-11 2003-09-17 四川大学 Surface active strong internal fixed titanium bone connection plate and its making method
CN201213835Y (en) * 2008-05-20 2009-04-01 郁建华 Biological activity absorbable fracture internal fixation device
CN203677226U (en) * 2013-12-10 2014-07-02 徐斌 Self-releasing internal fracture fixation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106420024A (en) * 2016-08-31 2017-02-22 苏州西脉新诚生物科技有限公司 Bone screw covered with soft material

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