CN103099658A - Mini-type metacarpal bone and finger bone external fixing support - Google Patents
Mini-type metacarpal bone and finger bone external fixing support Download PDFInfo
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- CN103099658A CN103099658A CN2011103538385A CN201110353838A CN103099658A CN 103099658 A CN103099658 A CN 103099658A CN 2011103538385 A CN2011103538385 A CN 2011103538385A CN 201110353838 A CN201110353838 A CN 201110353838A CN 103099658 A CN103099658 A CN 103099658A
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Abstract
The invention discloses a mini-type metacarpal bone and finger bone external fixing support, in order to seek a simple, convenient-to-implement and effective treatment method for metacarpal bone and finger bone fractures of a hand portion, and particularly for infected open fractures near joints and combined local traumas. Through holding force of a fixing pin to a bone, mechanical reset force and firm fixing force of an external connecting rod are transmitted to interior bones to enable the connecting rod to be moved or fixed according to the needs of fracture or joint reset. The mini-type metacarpal bone and finger bone external fixing support has the advantages of being little in trauma, and stable and reliable in fixing.
Description
Technical field
The present invention relates to a kind of fracture fixation device, relate in particular to a kind of external fixer of the people's of can be used for hand metacarpus and phalange fracture.
Background technology
Metacarpus and phalange fracture is the result of hand injury direct violence, incidence rate in fracture is higher, and often with the merging damage of tendon neural blood vessel etc., metacarpus and phalange fracture also has its particularity except having the common characteristics of limbs tubulose fracture, be that metacarpal-phalangeal is short and small, participate in consisting of the joint many, functional requirement is high, and is large on the profile impact, the bone structures surrounding is complicated, and displacement, angulation less after fracture all can affect the function of hands.
Therefore complicated metacarpal-phalangeal involves the treatment of articular surface fracture, be the difficult point in orthopaedics therapy always, higher complication and disability rate are arranged, the quality of first phase treatment effect will determine later stage hands functional rehabilitation situation, particularly opening, pulverizing and adjacent joints fracture, the fixing requirement that resets is higher.But to hand fracture of metacarpal bone and phalanges of fingers, particularly juxtra-articular and the compound fracture that merges partial trauma and pollute, lack at present effective fixing means, for closure, stable fracture often adopt after manual reduction Gypsum Fibrosum or clamping plate fixing outward; The opening that incidence rate is higher, the unstable fracture treatment means such as fixing in rear employing Kirschner wire, steel plate that resets.
Restore funcitons is the striving direction of metacarpus and phalange fracture treatment always to greatest extent, clinical middle discovery, have some patient's metacarpus and phalange fractures because of
The interference of bending and stretching tendon is arranged, and soft tissue embeds, the closed reduction difficulty, and the set time is long, and functional rehabilitation is bad.Wherein:
Kirschner wire internal fixation treatment fracture of metacarpal bone and phalanges of fingers, be applicable to head of metacarpal bone fracture and in, the horizontal shape of proximal phalange and short oblique fracture, its advantage is the otch less, easy and simple to handle, little for disturbing to fractures blood, expense is cheap, and interior fixedly taking-up is simple, but be prone to loosening, slippage, can not reach and innerly to fix.Single Kirschner wire is fixedly the time, and wayward rotation is easily separated between fracture end, often will pass arthrodesis, and be unfavorable for early functional exercise and affect function and reply,, the fixing joint function disturbance that also can cause of trans-articular; Cross K-wire is fixedly the time, though stability better, can prevent rotation, but fracture end is without pressurization, also can affect union of fracture, and postoperative to assist plaster slab fixing outward, easy concurrent ankylosis, malunion and bone does not connect etc., had a strong impact on the hand function rehabilitation, and because pulp cavity is less, the angle of threading a needle is difficult for grasping, when operation is threaded a needle, difficulty is large, and is high to patient's specification requirement.
Miniature steel plate matter is thin, body is little, strong, do in fracture of metacarpal bone and phalanges of fingers with it fixing, basic satisfy international in the fixedly Therapeutic Principle of research association (AO) proposition fracture of metacarpal bone and phalanges of fingers three requirements that should reach: 1. make every effort to anatomical reduction; 2. light firmly fixing again; 3. early ambulant and functional exercise; But because Metacarpus and phalanges is less, miniature steel plate is sometimes because the reason of peeling off causes adhesion of tendon, bone does not connect, the larger plate exposure of soft tissue injury etc., and function is bent and stretched in impact, should reduce the destruction to fracture blood fortune in art as far as possible, avoid repeatedly holing and tapping, require the doctor to have certain operation skill; Need after union of fracture again to cut and take out steel plate screw, than other fixing means troubles, medical expense is than fixing expensive in Kirschner wire, and some patients were is difficult to bear.
, can only fix with plaster slab in Traditional regimen effectively fixedly the time at Kirschner wire and steel plate, affect the hands function, and be unfavorable for changing dressings and reparation that flap covering, tendon and bone are damaged.
Present reduction of the fracture fixing means postoperative can not early exercise because of finger, affect function, or because the traumatic arthritis arthralgia usually needs second phase row arthrodesis, therefore need a kind of new reseting fixture or method, reply effect to realize more satisfied treatment and function.
Summary of the invention
In order to seek hand metacarpus and phalange fracture, particularly juxtra-articular and to merge partial trauma and the simple and effective Therapeutic Method of the compound fracture of pollution, the invention provides a kind of miniature Metacarpus and phalanges exterior fixation bracket.
As mentioned above, the purpose of this invention is to provide a kind of Minisize metacarpophalangeal bone fracture exterior fixation bracket, comprise two fixture blocks, i.e. fixture block one and fixture block two, described two fixture blocks are connected by connecting rod.Described fixture block one and fixture block two all are used for adding fastening bone screw or spicule, as Kirschner wire or the special-purpose key screw of Metacarpus and phalanges etc.
Wherein, described fixture block two is provided with the through hole that runs through, and described connecting rod one end stretches in fixture block one, and the vertical direction of fixture block two through holes is provided with screw, described screw is communicated with the outside of described through hole with fixture block two, and screw-in compression is screwed in described screw described connecting rod is fixed.
Miniature metacarpus and phalange fracture exterior fixation bracket of the present invention also comprises adjusting screw(rod); The described connecting rod other end passes rear connection one fixed block of fixture block two by described through hole; Described fixed block is provided with the adjusting screw(rod) hole of perforation at the side of connecting rod, described fixture block two also is provided with the adjusting screw(rod) screw of perforation at the side of through hole, the adjusting screw(rod) hole of fixture block two and the adjusting screw(rod) screw of fixed block are on same straight line, and described adjusting screw(rod) passes the adjusting screw(rod) hole of described fixed block and the adjusting screw(rod) screw of fixture block two successively.
Wherein, an end of described adjusting screw(rod) can also be provided with nut and be used for rotating described adjusting screw(rod), can also be provided with to stop projection, and described nut and catch ring lay respectively at fixed block both sides, are used for preventing that adjusting screw(rod) from moving forward and backward with respect to fixed block.Describedly stop that projection can be the catch ring that is projected on described adjusting screw(rod) surface.
A kind of preferred implementation of miniature metacarpus and phalange fracture exterior fixation bracket according to the present invention, described fixture block one also is provided with the through hole that runs through, and connecting rod inserts from through hole one end, and the other end of through hole is provided with and steps up screw.
The further preferred implementation of miniature metacarpus and phalange fracture exterior fixation bracket according to the present invention, be provided with spherical cavity in described fixture block one, the end that described connecting rod inserts fixture block one is spheric end, and described spheric end is inserted in described spherical cavity, forms universal joint with described spherical cavity.
The miniature metacarpus and phalange fracture exterior fixation bracket that the present invention is above-mentioned, described fixture block one and fixture block two include a clip slot, are used for clamping solid bone screw or spicule, comprise that also compression axis is used to compress described solid bone screw or spicule.
Wherein, described fixture block also comprises flexible member, and described fixture block one and fixture block two all also comprise flexible member, and described compression axis outer end is provided with the head of a nail, and described flexible member is between the head of a nail and fixture block.
The miniature metacarpus and phalange fracture exterior fixation bracket of the present invention is braked and fixes a certain fracture site of hand Metacarpus and phalanges outside human body, and wound is little; Simple in structure, easy and simple to handle, fixation can be carried out joint motion in early days, avoid the complication such as ankylosis; After support is fixing, is conducive to wound and observes, change dressings and the healing of wound surface; The postoperative rehabilitation time is short, has reduced the stimulation of steel plate class fixed form to tendon, reduces the generation of adhesion of tendon, is beneficial to fracture repair; Be applicable to especially fracture around joint of Treat Hand Fracture.
Clinical trial proves, in the 1st metacarpal bone substrate fracture, can reset accurately across fixing between the 1st, 2 metacarpal bones, tears frame open and disposes easyly, need not anaesthetize and special environment equipment.Operation process is simple, the postoperative rehabilitation time is short and the profile functional rehabilitation is satisfied.
Description of drawings
Fig. 1 is the miniature metacarpus and phalange fracture exterior fixation bracket of the present invention structural representation;
Fig. 2 is the miniature metacarpus and phalange fracture exterior fixation bracket of the present invention fixture block backsight structural representation;
Fig. 3 is the left TV structure schematic diagram of the miniature metacarpus and phalange fracture exterior fixation bracket of the present invention fixture block.
The specific embodiment
The invention provides a kind ofly for the outer fixing miniature support of metacarpus and phalange fracture, comprise the connecting rod of two clamps and two clamps of link, clamp steps up Ke Shi nail or the special-purpose key screw of Metacarpus and phalanges.Can also regulate distance between clamp by adjusting rod, can carry out broken ends of fractured bone pressurization.
With reference to the accompanying drawings, by specific embodiment, the miniature metacarpus and phalange fracture exterior fixation bracket of the present invention is described in detail and describes, so that better understand the present invention, but should be understood that, following embodiment does not limit the scope of the invention.
With reference to Fig. 1, in the present embodiment, described miniature metacarpus and phalange fracture exterior fixation bracket comprises the first fixture block 1 and the second fixture block 2, the first fixture blocks 1 and is connected fixture block 2 and connects by connecting rod 3.
The second fixture block 2 is provided with through hole, and connecting rod 3 passes through hole, and an end is connected on fixture block 1.
The second fixture block 2 is provided with screwed hole and is communicated with described through hole and outside, and screw-in compression 22 is screwed in described screwed hole, and connecting rod 3 is fixing.
During use, spicule is fixed on bone, and the outer end is clamped by the first fixture block 1 and the second fixture block 2, thereby has realized knochenbruch is connected.
On the basis of embodiment 1, with reference to Fig. 1, connecting rod 3 is connected with fixed block 5 at the outside of the second fixture block 2 end, and fixed block 5 is provided with the adjusting screw(rod) hole 52 of perforation at the side of connecting rod 3.
The second fixture block 2 also is provided with protuberance 21 at the side of through hole, and protuberance 21 is provided with the adjusting screw(rod) screw of perforation, and the adjusting screw(rod) hole 52 of fixed block 5 and the adjusting screw(rod) screw of the second fixture block 2 are on same straight line.
Adjusting screw(rod) 4 passes the adjusting screw(rod) hole 52 of fixed block 5 and the adjusting screw(rod) screw of the second fixture block 2 successively.
Rotation adjusting screw(rod) 4, the second fixture block 2 can move forward and backward, thereby the nail that drives the second fixture block 2 clampings moves forward and backward, therefore, adjusting screw(rod) 4 can extend according to the adjustment of fracture needs, reach the purpose of correcting the fracture site shortening or separating and playing the pressurization of the postoperative fracture broken ends of fractured bone, play simultaneously the effect of bone prolongation or bone cripetura in the orthomorphia treatment.
Regulate for convenient, also be provided with nut 41 at an end of adjusting screw(rod) 4, adjusting screw(rod) 4 can also be provided with and stop projection 42 in addition; Nut 41 and stop that projection 42 lays respectively at the both sides in the adjusting screw(rod) hole of fixed block 5.
On the basis of embodiment 1 or 2, with reference to Fig. 1, be provided with spherical cavity in the first fixture block 1, the end that connecting rod 3 inserts the first fixture block 1 is spheric end 31, spheric end 31 is inserted in described spherical cavity, forms universal joint with described spherical cavity.
Connecting rod 3 and the first fixture block 1 junction are designed to gimbal suspension, and good adjustability is arranged, and effectively correct fracture rotation or angulation deformity, find that as postoperative fracture has angulation or rotation, and feasible maneuver adjustment and the good para-position that obtains to fracture are to line.
In the case, there is cambered surface piece 11 the spherical cavity rear end, and the rear end of cambered surface piece 11 is clamping screw 12, is used for better controlling universal joint.
In the above embodiment of the present invention, the first fixture block 1 and the second fixture block 2 can be the arbitrary structures that can clamp spicule or solid bone screw, and still, with reference to Fig. 2 and Fig. 3, in the present embodiment, fixture block comprises clip slot 10, are used for clamping spicule or solid bone screw.Described fixture block also comprises compression axis 6.
The insertion of Ke Shi nail is added in groove 10, be fixed with compression axis 6.
Above specific embodiments of the invention are described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of doing under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (8)
1. a Minisize metacarpophalangeal bone fracture exterior fixation bracket, is characterized in that, comprises two fixture blocks, i.e. fixture block one and fixture block two, and described two fixture blocks are connected by connecting rod;
Wherein, described fixture block two is provided with the through hole that runs through, and described connecting rod one end stretches in fixture block one, and the vertical direction of fixture block two through holes is provided with screw, described screw is communicated with the outside of described through hole with fixture block two, and screw-in compression is screwed in described screw described connecting rod is fixed.
2. Minisize metacarpophalangeal bone fracture exterior fixation bracket according to claim 1, is characterized in that, also comprises adjusting screw(rod); The described connecting rod other end passes rear connection one fixed block of fixture block two by described through hole; Described fixed block is provided with the adjusting screw(rod) hole of perforation at the side of connecting rod, described fixture block two also is provided with the adjusting screw(rod) screw of perforation at the side of through hole, the adjusting screw(rod) hole of fixture block two and the adjusting screw(rod) screw of fixed block are on same straight line, and described adjusting screw(rod) passes the adjusting screw(rod) hole of described fixed block and the adjusting screw(rod) screw of fixture block two successively.
3. Minisize metacarpophalangeal bone fracture exterior fixation bracket according to claim 2, is characterized in that, an end of described adjusting screw(rod) is provided with nut and is used for rotating described adjusting screw(rod).
4. Minisize metacarpophalangeal bone fracture exterior fixation bracket according to claim 3, is characterized in that, described adjusting screw(rod) also is provided with and stops projection, and described nut and catch ring lay respectively at fixed block both sides, is used for preventing that adjusting screw(rod) from moving forward and backward with respect to fixed block.
5. Minisize metacarpophalangeal bone fracture exterior fixation bracket according to claim 1, is characterized in that, described fixture block one also is provided with the through hole that runs through, and connecting rod inserts from through hole one end, and the other end of through hole is provided with and steps up screw.
6. Minisize metacarpophalangeal bone fracture exterior fixation bracket according to claim 1, it is characterized in that, be provided with spherical cavity in described fixture block one, the end that described connecting rod inserts fixture block one is spheric end, described spheric end is inserted in described spherical cavity, forms universal joint with described spherical cavity.
7. Minisize metacarpophalangeal bone fracture exterior fixation bracket according to claim 1, is characterized in that, described fixture block one and fixture block two include a clip slot, is used for clamping solid bone screw or spicule, comprises that also compression axis is used to compress solid bone screw or the spicule in described clip slot.
8. Minisize metacarpophalangeal bone fracture exterior fixation bracket according to claim 7, is characterized in that, described fixture block one and fixture block two all also comprise flexible member, and described compression axis outer end is provided with the head of a nail, and described flexible member is between the head of a nail and fixture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103538385A CN103099658A (en) | 2011-11-10 | 2011-11-10 | Mini-type metacarpal bone and finger bone external fixing support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103538385A CN103099658A (en) | 2011-11-10 | 2011-11-10 | Mini-type metacarpal bone and finger bone external fixing support |
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| CN103099658A true CN103099658A (en) | 2013-05-15 |
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| CN2011103538385A Pending CN103099658A (en) | 2011-11-10 | 2011-11-10 | Mini-type metacarpal bone and finger bone external fixing support |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103393454A (en) * | 2013-08-20 | 2013-11-20 | 哈尔滨首创骨科微创医疗设备有限公司 | Limb long bone fracture semicircular reduction device |
| CN106236225A (en) * | 2014-10-24 | 2016-12-21 | 吴昊 | A kind of ring spring shape exter-nal fixer adapting to comminuted fracture |
| CN111544186A (en) * | 2020-06-12 | 2020-08-18 | 丁舒雅 | Orthopedic palm phalangeal joint straightening machine |
| CN113476124A (en) * | 2021-07-20 | 2021-10-08 | 王森 | Phalangeal fracture external fixation support |
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| CN86206924U (en) * | 1986-09-14 | 1988-02-24 | 吉林手表厂 | Multi-functional outer fixed support for renovating and repairing fracture of phalanx |
| CN2187445Y (en) * | 1994-01-20 | 1995-01-18 | 赵秀宝 | Fixing device for toe |
| US5803924A (en) * | 1993-08-05 | 1998-09-08 | Hi-Shear Fastners Europe Limited | External fixator |
| US5941877A (en) * | 1998-01-14 | 1999-08-24 | The Board Of Regents Of The University Of Texas System | Hand external fixation and joint mobilization and distraction device |
| CN2354514Y (en) * | 1997-02-17 | 1999-12-22 | 胡桓宇 | Multifunctional external fixator for single ulna and radius |
| WO2006023870A2 (en) * | 2004-08-24 | 2006-03-02 | Walter Lorenz Surgical, Inc. | Bone distractor with ratchet mechanism |
| CN201384553Y (en) * | 2009-04-11 | 2010-01-20 | 郧阳医学院附属太和医院 | External fixed frame for calcaneum restoration |
| CN101933823A (en) * | 2010-09-17 | 2011-01-05 | 申屠丙花 | Universal draw hook for human body operation |
| CN202604982U (en) * | 2011-11-10 | 2012-12-19 | 上海市第六人民医院 | Minisize external metacarpal and phalanx fixation support |
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| CN86206924U (en) * | 1986-09-14 | 1988-02-24 | 吉林手表厂 | Multi-functional outer fixed support for renovating and repairing fracture of phalanx |
| US5803924A (en) * | 1993-08-05 | 1998-09-08 | Hi-Shear Fastners Europe Limited | External fixator |
| CN2187445Y (en) * | 1994-01-20 | 1995-01-18 | 赵秀宝 | Fixing device for toe |
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| US5941877A (en) * | 1998-01-14 | 1999-08-24 | The Board Of Regents Of The University Of Texas System | Hand external fixation and joint mobilization and distraction device |
| WO2006023870A2 (en) * | 2004-08-24 | 2006-03-02 | Walter Lorenz Surgical, Inc. | Bone distractor with ratchet mechanism |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103393454A (en) * | 2013-08-20 | 2013-11-20 | 哈尔滨首创骨科微创医疗设备有限公司 | Limb long bone fracture semicircular reduction device |
| CN103393454B (en) * | 2013-08-20 | 2015-03-11 | 哈尔滨首创骨科微创医疗设备有限公司 | Limb long bone fracture semicircular reduction device |
| CN106236225A (en) * | 2014-10-24 | 2016-12-21 | 吴昊 | A kind of ring spring shape exter-nal fixer adapting to comminuted fracture |
| CN106236225B (en) * | 2014-10-24 | 2019-07-16 | 吴昊 | A kind of ring spring shape exter-nal fixer adapting to comminuted fracture |
| CN111544186A (en) * | 2020-06-12 | 2020-08-18 | 丁舒雅 | Orthopedic palm phalangeal joint straightening machine |
| CN113476124A (en) * | 2021-07-20 | 2021-10-08 | 王森 | Phalangeal fracture external fixation support |
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Application publication date: 20130515 |