CN106859748A - Miniature Metacarpus and phalanges exterior fixing rack - Google Patents
Miniature Metacarpus and phalanges exterior fixing rack Download PDFInfo
- Publication number
- CN106859748A CN106859748A CN201510919747.1A CN201510919747A CN106859748A CN 106859748 A CN106859748 A CN 106859748A CN 201510919747 A CN201510919747 A CN 201510919747A CN 106859748 A CN106859748 A CN 106859748A
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- fixture block
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- metacarpus
- adjusting screw
- phalanges
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/60—Surgical 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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
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- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
In order to seek hand fracture of metacarpal bone and phalanges of fingers, particularly juxtra-articular and merge partial trauma and pollution open fracture simple and effective treatment method, the present invention devises a kind of miniature Metacarpus and phalanges exterior fixing rack, including two fixture blocks, that is fixture block one and fixture block two, described two fixture blocks are connected by connecting rod；The fixture block two is provided with the through hole for running through, and described connecting rod one end is stretched into fixture block one, and the vertical direction of the through hole of fixture block two is provided with screw, and the through hole and the ft connection of fixture block two, screw-in compression are screwed into the screw and fix the connecting rod by the screw.By the fixed hold for bone, the strength of the mechanical return of Ligation in vitro bar and strong fixation is conducted to internal bone, makes it according to being moved the need for fracture or embolia or fixed, with wound it is small, fixing-stable is reliable the characteristics of.
Description
Technical field
The present invention relates to a kind of fracture fixation device, more particularly to a kind of external fixer that can be used for human hand metacarpus and phalange fracture.
Background technology
Metacarpus and phalange fracture is the result of hand injury direct violence, incidence in fracture is higher, and the Accompanied injuries of tendon neural blood vessel etc. are often accompanied by, and in addition to metacarpus and phalange fracture is the characteristics of with common to limbs tubulose fracture, also its particularity, i.e. metacarpal-phalangeal is short and small, participation composition joint is more, and functional requirement is high, big on profile influence, bone structures surrounding is complicated, and less displacement, angulation can all influence the function of hand after fracture.
Therefore the treatment of complicated metacarpophalangeal bone involvement articular surface fracture, difficult point always in orthopaedics therapy, the quality for having complication and disability rate higher, a phase treatment effect will determine later stage hand functional rehabilitation situation, particularly open, crushing and adjacent joints fracture, replacement and fixation requirement are higher.But to hand fracture of metacarpal bone and phalanges of fingers, particularly juxtra-articular and merge partial trauma and the open fracture for polluting, effective fixing means are lacked at present, for closed, stable fracture frequently with fixed outside gypsum after manipulative reduction or clamping plate；Incidence opening higher, unstable fracture use the treatment means such as Kirschner wire, Plate internal fixiation after resetting.
Recover the striving direction that function is always metacarpus and phalange fracture treatment to greatest extent, found in clinic, there are some patient's metacarpus and phalange fractures because there is the interference for bending and stretching tendon, soft tissue insertion, closed reduction is difficult, 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, suitable for metacarpal head fracture and, the horizontal shape of proximal phalange and short oblique fracture, its advantage is that otch is relatively small, it is easy to operate, small is disturbed to fractures blood supply, low-cost, interior fixed taking-up is simple, but easily occur loosening, slip, it is impossible to which reaching can inner fixation.During single Kirschner wire fixation, it is difficult to control and rotates, it is easily separated between fracture end, arthrodesis is often passed through, it is unfavorable for early functional exercise and influences function to reply, trans-articular is fixed and also results in joint function disturbance；When Cross K-wire is fixed, though stability is preferably, prevent rotation, but fracture end is without pressurization, also union can be influenceed, and postoperative aids in outside plaster slab fixed, easy concurrent anchylosis, malunion and bone nonunion etc., hand function rehabilitation has been had a strong impact on, and because pulp cavity is smaller, angle of threading a needle is difficult to grasp, difficulty is big when operation is threaded a needle, high to patient's technical requirements.
Miniature steel plate matter is thin, body is small, strong, makees fixed in fracture of metacarpal bone and phalanges of fingers with it, substantially meets and research association is fixed in the world（AO）Propose three requirements that the principle of reatment of fracture of metacarpal bone and phalanges of fingers should reach：1. anatomical reduction is made every effort to；2. it is light and be firmly fixed；3. early ambulant and functional training；But because Metacarpus and phalanges are smaller, miniature steel plate is sometimes because the reason for peeling off causes adhesion of tendon, bone nonunion, the larger plate exposure of soft tissue injury etc., and function is bent and stretched in influence, should try one's best the destruction for reducing and being transported to fracture blood in art, avoid drilling repeatedly and tapping, it is desirable to which doctor has certain operation skill；Need to cut taking-up steel plate screw again after union, then bothered compared with other fixing means, medical expense is fixed expensive compared with Kirschner wire, and some patientss are difficult to bear.
When Kirschner wire and steel plate cannot be fixed effectively, can only be fixed with plaster slab in Traditional regimen, influence hand function, and be unfavorable for dressing and the reparation of flap covering, tendon and Cranial defect.
Current reduction of the fracture fixing means is postoperative because finger is unable to early exercise, influence function, or because traumatic arthritis arthralgia usually needs the second stage of row joint fusion, it is therefore desirable to a kind of new reseting fixture or method, to realize more satisfied treatment and function reply effect.
The content of the invention
In order to seek hand metacarpus and phalange fracture, particularly juxtra-articular and merge the simple and effective treatment method of partial trauma and the open fracture for polluting, the invention provides a kind of miniature Metacarpus and phalanges exterior fixing rack.
As described above, it is an object of the invention to provide a kind of Minisize metacarpophalangeal bone fracture exterior fixing rack, including two fixture blocks, i.e. fixture block one and fixture block two, described two fixture blocks are connected by connecting rod.The fixture block one and fixture block two are used for stepping up solid bone screws or spicule, such as special key screw of Kirschner wire or Metacarpus and phalanges.
Wherein, the fixture block two is provided with the through hole for running through, and described connecting rod one end is stretched into fixture block one, and the vertical direction of the through hole of fixture block two is provided with screw, the through hole and the ft connection of fixture block two, screw-in compression are screwed into the screw and fix the connecting rod by the screw.
Miniature metacarpus and phalange fracture exterior fixing rack of the present invention also includes adjusting screw rod；The connecting rod other end connects a fixed block after passing through fixture block two by the through hole；The fixed block is provided with the adjusting screw rod hole of insertion in the side of connecting rod, the fixture block two also is provided with the adjusting screw rod screw of insertion in the side of through hole, the adjusting screw rod hole of fixed block and the adjusting screw rod screw of fixture block two are on same straight line, and the adjusting screw rod sequentially passes through the adjusting screw rod hole of the fixed block and the adjusting screw rod screw of fixture block two.
Wherein, one end of the adjusting screw rod is also provided with nut for rotating the adjusting screw rod, is also provided with stopping projection, and the nut and stop projection are located at fixed block both sides respectively, movable relative to fixed block for preventing adjusting screw rod.The stop projection can be the blocker ring for being projected on the adjusting screw rod surface.
According to a kind of preferred embodiment of miniature metacarpus and phalange fracture exterior fixing rack of the invention, the fixture block one also is provided with the through hole for running through, and connecting rod is inserted from through hole one end, and the other end of through hole is provided with and steps up screw.
According to the further preferred implementation method of miniature metacarpus and phalange fracture exterior fixing rack of the invention, spherical cavity is provided with the fixture block one, one end of the connecting rod insertion fixture block one is spheric end, and the spheric end is inserted in the spherical cavity, and universal joint is constituted with the spherical cavity.
The above-mentioned miniature metacarpus and phalange fracture exterior fixing rack of the present invention, the fixture block one and fixture block two include a clip slot, for clamping solid bone screws or spicule, are also used to compress solid bone screws or the spicule including compression axis.
Wherein, the fixture block also includes flexible member, and the fixture block one and fixture block two also include flexible member, and the compression axis outer end is provided with the head of a nail, and the flexible member is located between the head of a nail and fixture block.
The miniature metacarpus and phalange fracture exterior fixing rack of the present invention, is braked and is fixed outside human body to a certain fracture site of hand Metacarpus and phalanges, and wound is small；Simple structure, easy to operate, fixation, can in early days carry out joint motion, it is to avoid the complication such as anchylosis；After support is fixed, be conducive to the healing of wound observation, dressing and the surface of a wound；Post-operative recovery time is short, reduces stimulation of the steel plate class fixed form to tendon, the generation of adhesion of tendon is reduced, beneficial to repair of fractured bones；Suitable for Treat Hand Fracture especially fracture around joint.
Clinical test proves that in the 1st metacarpal bone substrate fracture, can be fixed across between the 1st, 2 metacarpal bones, it is accurate to reset, and tears frame disposal simplicity open, is not required to anesthesia and particular surroundings equipment.Surgical procedure is simple, post-operative recovery time is short and profile functional rehabilitation is satisfied with.
Brief description of the drawings
Fig. 1 is miniature metacarpus and phalange fracture exterior fixing rack structural representation of the invention；
Fig. 2 is miniature metacarpus and phalange fracture exterior fixing rack fixture block backsight structural representation of the invention；
Fig. 3 is miniature metacarpus and phalange fracture exterior fixing rack fixture block left view structural representation of the invention.
Specific embodiment
The invention provides a kind of for miniature support fixed outside metacarpus and phalange fracture, including two connecting rods of gripping block of two gripping blocks and link, gripping block steps up kirschner nail or the special key screw of Metacarpus and phalanges.The distance between gripping block can also be adjusted by adjusting rod, broken ends of fractured bone pressurization can be carried out.
With reference to the accompanying drawings, miniature metacarpus and phalange fracture exterior fixing rack of the invention is described in detail and is described by specific embodiment, for a better understanding of the present invention it should be appreciated that following embodiments are not intended to limit the scope of the invention.
Embodiment 1
Reference picture 1, in the present embodiment, the miniature metacarpus and phalange fracture exterior fixing rack includes the first fixture block 1 and the second fixture block 2, and the first fixture block 1 and the second fixture block 2 are connected by connecting rod 3.
Second fixture block 2 is provided with through hole, and connecting rod 3 passes through through hole, and one end is connected on fixture block 1.
Second fixture block 2 is provided with screwed hole and connects the through hole and outside, and screw-in compression 22 is screwed into from the screwed hole, connecting rod 3 is fixed.
When using, spicule is fixed on bone, and outer end is clamped by the first fixture block 1 and the second fixture block 2, it is achieved thereby that knochenbruch is connected.
Embodiment 2
On the basis of embodiment 1, reference picture 1, connecting rod 3 is connected with fixed block 5 in outside one end of the second fixture block 2, and fixed block 5 is provided with the adjusting screw rod hole 52 of insertion in the side of connecting rod 3.
Second fixture block 2 also is provided with protuberance 21 in the side of through hole, and protuberance 21 is provided with the adjusting screw rod screw of insertion, and the adjusting screw rod screw of the fixture block 2 of adjusting screw rod hole 52 and second of fixed block 5 is on same straight line.
Adjusting screw rod 4 sequentially passes through the adjusting screw rod screw of the fixture block 2 of adjusting screw rod hole 52 and second of fixed block 5.
Rotation adjusting screw rod 4, second fixture block 2 can be moved forward and backward, so as to the nail for driving the second fixture block 2 to clamp is moved forward and backward, therefore, adjusting screw rod 4 can need adjustment extension according to fracture, reach correction fracture site to shorten or separate and play the purpose of postoperative fracture broken ends of fractured bone pressurization, while playing a part of Limb lengthening or bone cripetura in orthomorphia treatment.
Adjust for convenience, nut 41 is additionally provided with one end of adjusting screw rod 4, adjusting screw rod 4 is also provided with stopping projection 42 in addition；Nut 41 and stop projection 42 are respectively positioned at the both sides in the adjusting screw rod hole of fixed block 5.
Embodiment 3
On the basis of embodiment 1 or 2, reference picture 1 is provided with spherical cavity in first fixture block 1, one end that connecting rod 3 inserts the first fixture block 1 is spheric end 31, and spheric end 31 is inserted in the spherical cavity, and universal joint is constituted with the spherical cavity.
The junction of 3 and first fixture block of connecting rod 1 is designed as gimbal suspension, there is good adjustability, effectively corrects fracture rotation or angulation deformity, and such as postoperative discovery fracture has angulation or rotation, feasible gimmick adjustment and obtains the good contraposition of fracture to line.
In the case, there is cambered surface block 11 spherical cavity rear end, and the rear end of cambered surface block 11 is clamping screw 12, for preferably control universal joint.
Embodiment 4
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 screws, but, reference picture 2 and Fig. 3, in the present embodiment, fixture block includes clip slot 10, for clamping spicule or solid bone screws.The fixture block also includes compression axis 6.
By in the insertion of kirschner nail plus groove 10, it is fixed with compression axis 6.
Compression axis 6 is additionally provided with the head of a nail 61 in the outer end of fixture block, and spring 7 is provided between the head of a nail 61 and fixture block.
Specific embodiment of the invention has been described in detail above, but it is intended only as example, and the present invention is not restricted to particular embodiments described above.To those skilled in the art, any equivalent modifications carried out to the present invention and substitute also all among scope of the invention.Therefore, the impartial conversion and modification made without departing from the spirit and scope of the invention, all should be contained within the scope of the invention.
Claims (8)
1. a kind of miniature Metacarpus and phalanges exterior fixing rack, it is characterised in that including two fixture blocks, i.e. fixture block one and fixture block two, described two fixture blocks are connected by connecting rod；
Wherein, the fixture block two is provided with the through hole for running through, and described connecting rod one end is stretched into fixture block one, and the vertical direction of the through hole of fixture block two is provided with screw, the through hole and the ft connection of fixture block two, screw-in compression are screwed into the screw and fix the connecting rod by the screw.
2. miniature Metacarpus and phalanges exterior fixing rack according to claim 1, it is characterised in that also including adjusting screw rod；The connecting rod other end connects a fixed block after passing through fixture block two by the through hole；The fixed block is provided with the adjusting screw rod hole of insertion in the side of connecting rod, the fixture block two also is provided with the adjusting screw rod screw of insertion in the side of through hole, the adjusting screw rod hole of fixed block and the adjusting screw rod screw of fixture block two are on same straight line, and the adjusting screw rod sequentially passes through the adjusting screw rod hole of the fixed block and the adjusting screw rod screw of fixture block two.
3. miniature Metacarpus and phalanges exterior fixing rack according to claim 2, it is characterised in that one end of the adjusting screw rod is provided with nut for rotating the adjusting screw rod.
4. miniature Metacarpus and phalanges exterior fixing rack according to claim 3, it is characterised in that the adjusting screw rod is additionally provided with stop projection, the nut and stops that projection is located at fixed block both sides respectively, movable relative to fixed block for preventing adjusting screw rod.
5. miniature Metacarpus and phalanges exterior fixing rack according to claim 1, it is characterised in that the fixture block one also is provided with the through hole for running through, connecting rod is inserted from through hole one end, and the other end of through hole is provided with and steps up screw.
6. miniature Metacarpus and phalanges exterior fixing rack according to claim 1, characterized in that, being provided with spherical cavity in the fixture block one, one end of the connecting rod insertion fixture block one is spheric end, the spheric end is inserted in the spherical cavity, and universal joint is constituted with the spherical cavity.
7. miniature Metacarpus and phalanges exterior fixing rack according to claim 1, it is characterised in that the fixture block one and fixture block two include a clip slot, for clamping solid bone screws or spicule, is also used to compress solid bone screws or the spicule in the clip slot including compression axis.
8. miniature Metacarpus and phalanges exterior fixing rack according to claim 7, it is characterised in that the fixture block one and fixture block two also include flexible member, the compression axis outer end is provided with the head of a nail, and the flexible member is located between the head of a nail and fixture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919747.1A CN106859748A (en) | 2015-12-14 | 2015-12-14 | Miniature Metacarpus and phalanges exterior fixing rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919747.1A CN106859748A (en) | 2015-12-14 | 2015-12-14 | Miniature Metacarpus and phalanges exterior fixing rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106859748A true CN106859748A (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510919747.1A Withdrawn CN106859748A (en) | 2015-12-14 | 2015-12-14 | Miniature Metacarpus and phalanges exterior fixing rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106859748A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523974A (en) * | 2018-04-13 | 2018-09-14 | 左中男 | Campaign-styled adjustable external fixer for reduction of fracture |
| CN111761553A (en) * | 2020-07-06 | 2020-10-13 | 温州大学 | Device for clamping artificial bone |
-
2015
- 2015-12-14 CN CN201510919747.1A patent/CN106859748A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523974A (en) * | 2018-04-13 | 2018-09-14 | 左中男 | Campaign-styled adjustable external fixer for reduction of fracture |
| CN108523974B (en) * | 2018-04-13 | 2024-05-28 | 左中男 | Sports type adjustable fracture reduction external fixator |
| CN111761553A (en) * | 2020-07-06 | 2020-10-13 | 温州大学 | Device for clamping artificial bone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170620 |
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| WW01 | Invention patent application withdrawn after publication |