A kind of orthopaedic trauma of accurate positioning is clamped with replacement and fixation
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of orthopaedic trauma replacement and fixations of accurate positioning
Pincers.
Background technique
In the therapeutic process of orthopaedics, it is often necessary to replacement and fixation at patients with fractures, it is therefore desirable to which special orthopaedics is multiple
Position grips pincers are assisted in the treatment of, and have that structure is complicated, inconvenient, some fixations are not accurate enough, secured, hold in surgical procedure
It is also easy to produce and shifts again, bring great trouble to the use of medical worker, and can not be according to use demand to grips pincers
It is accurately quickly located in doctor in therapeutic process and can usually use grips pincers and fracture is fixed, currently used grips pincers
It is cumbersome in solid timed step between chela and bone face, and it is easy to happen loosening, inconvenience is brought to doctor, is not suitable for pushing away extensively
Extensively.
Summary of the invention
It is needed when fixed between grips pincers chela and bone face the purpose of the present invention is to solve in the prior art artificial
A kind of orthopaedic trauma for the accurate positioning for manually adjusting fixation, and being easy to happen loosening, and propose is clamped with replacement and fixation.
To achieve the goals above, present invention employs following technical solutions:
The orthopaedic trauma for designing a kind of accurate positioning is clamped with replacement and fixation, including doublejointed caliper and chela, and chela with it is having a double meaning
It saves caliper to be integrally formed, is socketed with arc sleeve on the left of the outer wall of the chela, the arc sleeve is locked at chela by bolt
On the left of outer wall, pin shaft is connected with retaining mechanism on the right side of the inner wall of the doublejointed caliper;
The retaining mechanism includes first connecting rod and second connecting rod, and the medial center position of the first connecting rod is welded with torsion bullet
One end of spring, the other end of the torque spring are welded on the medial center position of second connecting rod, the first connecting rod and second
Cover and plectane are respectively welded on the right side of connecting rod, and plectane is plugged on the inner cavity of cover, the plectane passes through shaft and cover
It is connected, the upper semicircumference of the plectane continuously offers dovetail groove, and rectangular box, the rectangular box are welded on the right side of the cover
Inner cavity on the left of be plugged with rectangular slab, attachment base is welded on the left of the rectangular slab, is welded with ladder on the left of the attachment base
One end of shape inserted link, and the other end of trapezoidal inserted link is interspersed in dovetail groove, and the first permanent magnetism is bonded on the right side of the rectangular slab
Iron, the right center position of the rectangular slab is welded with one end of bar shaped bar, and bar shaped bar is interspersed in the first permanent magnet, described
The inner wall right screw of rectangular box is connected with snap-gauge, and the left side of the snap-gauge and the first permanent magnet opposite position are bonded with second
Permanent magnet, and the second permanent magnet repels each other with the first permanent magnetism ferromagnetism, the other end of the bar shaped bar successively extends the second permanent magnetism
Iron and snap-gauge.
Preferably, the bar shaped bar is made of a cross bar and an annulus.
Preferably, the outer wall of the chela offers arc chute, and the inner wall of the arc sleeve is welded with and arc chute
The sliding block to match.
Preferably, the left side of the first connecting rod and second connecting rod respectively with the inner wall of doublejointed caliper on the right side of upper and lower ends
Pin shaft connection.
Preferably, the distance that the rectangular slab can move right is more than or equal to the depth of dovetail groove.
Preferably, the central point of the cover, plectane and shaft is on same axis.
A kind of orthopaedic trauma of accurate positioning proposed by the present invention is clamped with replacement and fixation, and beneficial effect is: of the invention
Retaining mechanism can be fixed the angle of chela during pressing doublejointed caliper, easy to operate and pine is less likely to occur
It is dynamic, it is brought conveniently to doctor, is more suitable and is widely popularized, while after fixed to fracture, sliding arc sleeve inwardly,
Until fully wrapped around, the clamping screw to fracture, avoids chela is not completely closed from keeping fracture exposed, improves to fracture
Protectiveness.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is retaining mechanism cross-sectional view of the invention;
Fig. 3 is enlarged drawing at A of the invention.
In figure: 1, doublejointed caliper, 2, chela, 3, arc sleeve, 4, bolt, 5, retaining mechanism, 501, first connecting rod, 502,
Second connecting rod, 503, torque spring, 504, cover, 505, plectane, 506, shaft, 507, rectangular box, 508, rectangular slab, 509, company
Joint chair, 510, trapezoidal inserted link, the 511, first permanent magnet, 512, bar shaped bar, 513, snap-gauge, 514, dovetail groove, the 515, second permanent magnetism
Iron.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-3, a kind of orthopaedic trauma of accurate positioning is clamped with replacement and fixation, including doublejointed caliper 1 and chela 2,
And chela 2 and doublejointed caliper 1 are integrally formed, and are socketed with arc sleeve 3 on the left of the outer wall of chela 2, the outer wall of chela 2 offers arc
Shape sliding slot, the inner wall of arc sleeve 3 are welded with the sliding block to match with arc chute, and arc sleeve 3 is locked at chela 2 by bolt 4
Outer wall on the left of, pin shaft is connected with retaining mechanism 5 on the right side of the inner wall of doublejointed caliper 1;
Retaining mechanism 5 includes first connecting rod 501 and second connecting rod 502, the left side difference of first connecting rod 501 and second connecting rod 502
It is connect with upper and lower ends pin shaft on the right side of the inner wall of doublejointed caliper 1, the medial center position of first connecting rod 501 is welded with torsion bullet
One end of spring 503, the other end of torque spring 503 are welded on the medial center position of second connecting rod 502, and torque spring 503 is just
In the reset of first connecting rod 501 and second connecting rod 502, the right side of first connecting rod 501 and second connecting rod 502 is respectively welded cover
504 and plectane 505, and plectane 505 is plugged on the inner cavity of cover 504, plectane 505 is connected by shaft 506 with cover 504, cover
On same axis, the upper semicircumference of plectane 505 continuously offers trapezoidal the central point of body 504, plectane 505 and shaft 506
Slot 514, the right side of cover 504 are welded with rectangular box 507, are plugged with rectangular slab 508, rectangular slab on the left of the inner cavity of rectangular box 507
508 distances that can be moved right are more than or equal to the depth of dovetail groove 514, and the left side of rectangular slab 508 is welded with attachment base 509, even
The left side of joint chair 509 is welded with one end of trapezoidal inserted link 510, and the other end of trapezoidal inserted link 510 is interspersed in dovetail groove 514,
The right side of rectangular slab 508 is bonded with the first permanent magnet 511, and the right center position of rectangular slab 508 is welded with the one of bar shaped bar 512
End, bar shaped bar 512 is made of a cross bar and an annulus, and bar shaped bar 512 is interspersed in the first permanent magnet 511, rectangular box
507 inner wall right screw is connected with snap-gauge 513, and snap-gauge 513 limits rectangular slab 508, prevents rectangular slab 508 and rectangle
Case 507 separates, and the left side of snap-gauge 513 and 511 opposite position of the first permanent magnet are bonded with the second permanent magnet 515, and second forever
Magnet 515 repels each other with 511 magnetism of the first permanent magnet, and the other end of bar shaped bar 512 successively extends the second permanent magnet 515 and snap-gauge
513。
Working principle: when fracture is fixed, chela 2 is placed in fracture, doctor holds doublejointed pincers
Body 1 simultaneously presses doublejointed caliper 1, and doublejointed caliper 1 drives chela 2 that fracture is fixed, in pressing doublejointed caliper 1
Meanwhile first connecting rod 501 and second connecting rod 502 turn to the inside to squeeze under the action of connecting with 1 pin shaft of doublejointed caliper and turn round
Power spring 503, torque spring 503 generate elastic deformation after being squeezed, second connecting rod 502 drives plectane 505 to pass through shaft 506
It rotates clockwise, trapezoidal inserted link 510 is moved right along the inclined-plane of dovetail groove 514, and trapezoidal inserted link 510 passes through 509 band of attachment base
Dynamic rectangular slab 508 is moved right along the inner wall of rectangular box 507, when trapezoidal inserted link 510 is opposite with next 514 position of dovetail groove
At once, rectangular slab 508 drives trapezoidal inserted link 510 to insert under the action of the first permanent magnet 511 and 515 magnetism of the second permanent magnet repel each other
Enter in next dovetail groove 514, until chela 2 is fixed with fracture Contact fracture, trapezoidal inserted link 510 is inserted into
In the dovetail groove 514 of corresponding angle, the right-angle surface of trapezoidal inserted link 510 is connected to the right-angle surface of dovetail groove 514, to adjusting forceps major
The angle of pawl 2 is fixed, thus be fixed during realizing pressing, it is easy to operate and be less likely to occur to loosen, it gives
Doctor brings conveniently, is more suitable and is widely popularized, and after fixed to fracture, arc sleeve 3 is slided inwardly, until to bone
Fully wrapped around at folding, clamping screw 4 avoids the not completely closed protection for keeping fracture exposed, improving to fracture of chela 2
Property.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.