CN108720911A - A kind of fracture fixator - Google Patents
A kind of fracture fixator Download PDFInfo
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- CN108720911A CN108720911A CN201810699229.7A CN201810699229A CN108720911A CN 108720911 A CN108720911 A CN 108720911A CN 201810699229 A CN201810699229 A CN 201810699229A CN 108720911 A CN108720911 A CN 108720911A
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- arm
- right arm
- left arm
- fixed frame
- frame assembly
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- 238000001356 surgical procedure Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 208000015181 infectious disease Diseases 0.000 abstract description 5
- 210000000589 cicatrix Anatomy 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 208000010392 Bone Fractures Diseases 0.000 description 39
- 238000010586 diagram Methods 0.000 description 16
- 239000010935 stainless steel Substances 0.000 description 9
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- 208000027418 Wounds and injury Diseases 0.000 description 8
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- 229910000861 Mg alloy Inorganic materials 0.000 description 1
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Classifications
-
- 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
- A61B17/6458—Devices extending alongside the bones to be positioned with pin-clamps fixed at ends of connecting element
-
- 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
- A61B17/6441—Bilateral fixators, i.e. with both ends of pins or wires clamped
-
- 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
- A61B17/6466—Devices extending alongside the bones to be positioned with pin-clamps movable along a solid connecting rod
-
- 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
- A61B17/6466—Devices extending alongside the bones to be positioned with pin-clamps movable along a solid connecting rod
- A61B17/6483—Devices extending alongside the bones to be positioned with pin-clamps movable along a solid connecting rod the connecting rod having a non-circular section
-
- 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
- A61B17/66—Alignment, compression or distraction mechanisms
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of fracture fixators, including fixed frame assembly and retaining mechanism；Fixed frame assembly includes hinged left arm and right arm, and the free end of left arm and right arm is the tapered tip in section, to firmly grasp the bone tissue of patient；Retaining mechanism avoids the two from rotating for fixing left arm and right arm.Fracture fixator disclosed by the invention is provided with left arm and right arm, and the free end of the two is tip, opens up tip and patient's bone tissue can be fixed compared with small notch in the course of surgery；Operative incision is smaller, realizes the effect for reducing patient's infection risk, reduction table cicatrix of skin；The working strength of healthcare givers is also reduced simultaneously.
Description
Technical field
The present invention relates to technical field of medical equipment, more specifically to a kind of fracture fixator.
Background technology
The operation of clinical treatment fracture needs to carry out contraposition fixation to knochenbruch, and fixed form in the prior art mainly has interior
The fixing intensity of fixation, this kind of fixed form is high, but it is complicated for operation, operating difficulty is big, while needing over the course for the treatment of
Artificial manufacture wound, cuts skin, muscle, tendon, pushes nerve, periosteum aside, and surgical procedure can seriously destroy surface of a wound surrounding tissue,
Approach notch is larger in art simultaneously, the problems such as easily causing patient's infection, osteoporosis, can also be left significantly in skin surface
Scar.
In conclusion how to provide notch in a kind of art small fracture fixator, be current those skilled in the art urgently
It solves the problems, such as.
Invention content
In view of this, the object of the present invention is to provide a kind of fracture fixators, it is not necessarily in the course of surgery by fracture site
It all cuts, to reduce injury of the wound to patient.
To achieve the goals above, the present invention provides the following technical solutions：
A kind of fracture fixator, including：
Fixed frame assembly, the fixed frame assembly include hinged left arm and right arm, the left arm and the right arm from
It is the tapered tip in section by end, to firmly grasp bone tissue；
Retaining mechanism for locking the left arm and the right arm, being rotated to avoid the two.
Preferably, further include for facilitating the interim operation for controlling the left arm and the right arm opening and closing degree to clamp, it is described
Interim operation pincers include two hinged clamp handles in middle part, and the first end of the clamp handle is equipped with the finger ring being conveniently operated, the clamp handle
Second end be equipped with connecting pole；The left arm and the right arm are equipped with for coordinating fixed handle hole with the connecting pole.
Preferably, the section of the left arm free end is rounded or oval, and the section of the right arm free end is rounded
Or ellipse.
Preferably, the same fixed frame assembly, which is provided at least three, can firmly grasp the tip of bone tissue.
Preferably, the fixed frame assembly at least there are two, further include for fixing the opposite of each fixed frame assembly
Position, so that fracture site contraposition bindiny mechanism.
Preferably, the bindiny mechanism includes the fixed block set on the left arm end, and the fixed block is equipped with screw rod, institute
It states screw rod periphery and is arranged with nut；Orifice plate is equipped between the nut and the fixed block, the orifice plate, which is equipped with, can be sheathed on institute
State the through-hole of screw rod periphery.
Preferably, the bindiny mechanism includes the fixed block set on the left arm end, the fixed block be equipped with it is described
The left arm orifice structure parallel with the articulated shaft axis direction of the right arm is equipped with connecting rod in the orifice structure；It is described solid
Determine block and be equipped with threaded hole, the jackscrew that can push the connecting rod side wall is equipped in the threaded hole.
Preferably, the retaining mechanism include connect with the left arm the first step lock and connect with the right arm the
Two steps are locked, and the side wall of the first step lock and the side wall of second step lock are equipped with the teeth that can be intermeshed locking；
The right arm be equipped with the controllable second step lock along the axis direction of the left arm and the articulated shaft of the right arm, it is close or
Adjustment structure far from first step lock.
Preferably, first step lock and second step lock are arc-shaped, the two one end respectively with the left arm
It is connected with the right arm, the teeth are set to the side wall of the two；The arc core for the opening track that the left arm and the right arm are formed,
The arc core of the first step lock, the arc core of second step lock are on the axis of the articulated shaft.
Preferably, the regulating mechanism includes the fixing bolt set on the right arm, the axis of the fixing bolt and institute
The axis for stating articulated shaft is parallel, and the second step lock tube is set to the periphery of the fixing bolt, and the fixing bolt is equipped with can
Compress the regulating nut of the second step lock.
Fracture fixator provided by the invention includes fixed frame assembly and retaining mechanism；Fixed frame assembly includes a hinged left side
The bone tissue that the section of the free end of arm and right arm, left arm and right arm is tapered, tip can firmly grasp patient；Retaining mechanism is for solid
Determine left arm and right arm, the two is avoided to rotate.
In the course of surgery, it needs the both sides of the fracture site of patient cutting osculum, and point pawls is firmly grasped across notch
Bone tissue then utilizes retaining mechanism to fix the relative position of left arm and right arm.Since the bone tissue of patient is firmly grasped by point pawls
And it is fixed, and the section of point pawls is tapered to the direction by proximal end, tip section is smaller, therefore the notch performed the operation is smaller, from
And reduce the infection risk of patient；Notch epidermis can faster be grown into together with fixed frame assembly simultaneously, wound healing
Faster, additionally it is possible to the scar of epidermis skin caused by reducing surgical procedure；Also it can mitigate the working strength of healthcare givers.
Fracture fixator provided by the present application is provided with left arm and right arm, and the two firmly grasps bone tissue using tip, realizes
The effect for reducing operative incision, reducing infection risk.
It performs the operation in addition, being treated for knochenbruch, a kind of preferred embodiment that the application also provides uses at least two in the program
Fixed frame assembly, and the relative position of each fixed frame assembly is fixed by bindiny mechanism, so that fracture site aligns.It is using
In the process, it is mounted on fixed frame assembly in the epimere of fracture line and hypomere, the mounting means of each fixed frame assembly is identical, specifically
Operation can refer to above.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the working condition of fracture fixator provided by the present invention；
Fig. 2 is the structural schematic diagram of the working condition of another fracture fixator provided by the present invention；
Fig. 3 is the structural schematic diagram of fixed frame assembly provided by the present invention；
Fig. 4 is the structural schematic diagram of interim operation pincers provided by the present invention；
Fig. 5 is a kind of bindiny mechanism's structural schematic diagram provided by the present invention；
Fig. 6 is another bindiny mechanism structural schematic diagram provided by the present invention；
Fig. 7 is the structural schematic diagram of right arm provided by the present invention；
Fig. 8 is the structural schematic diagram of orifice plate provided by the present invention.
Reference numeral in Fig. 1~8 is：
Left arm 1, right arm 2, bindiny mechanism 3, axis hole 4, articulated shaft 5, handle hole 6, point pawls 7, adjusting nut 8, fixing bolt
9, the first step lock 10, orifice plate 11, interim operation pincers 12, connecting rod 13；
Screw rod 31, nut 32, orifice structure 33, jackscrew 34.
Specific implementation mode
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 describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of fracture fixator, is not necessarily to all cut fracture site in the course of surgery,
Reduce injury of the wound to patient.
It is a kind of structural schematic diagram of the working condition of fracture fixator provided by the present invention to please refer to Fig.1~8, Fig. 1；
Fig. 2 is the structural schematic diagram of the working condition of another fracture fixator provided by the present invention；Fig. 3 is provided by the present invention
The structural schematic diagram of fixed frame assembly；Fig. 4 is the structural schematic diagram of interim operation pincers provided by the present invention；Fig. 5 is the present invention
A kind of bindiny mechanism's structural schematic diagram provided；Fig. 6 is another bindiny mechanism structural schematic diagram provided by the present invention；Figure
7 be the structural schematic diagram of right arm provided by the present invention；Fig. 8 is the structural schematic diagram of orifice plate provided by the present invention.
The present invention provides a kind of fracture fixator, including retaining mechanism and fixed frame assembly；Fixed frame assembly includes hinged
Left arm 1 and right arm 2, the free end of left arm 1 and right arm 2 is the tapered tip in section, to firmly grasp bone tissue；Retaining mechanism is used
It is rotated in locking left arm 1 and right arm 2, to avoid the two.
With reference to figure 1 and Fig. 2, for promptly bone tissue, the end of the two is equipped with axis hole 4 and articulated shaft 5 for left arm 1 and right arm 2.
The symmetrical arcuate structure of free end generally use of left arm 1 and right arm 2, and the two free end cut away from articulated shaft 5
Direction is gradually reduced to form point pawls 7.The section of free end can be in polygon, and be caused to patient wound to reduce point pawls 7
Injury, the cross section at any one place in the preferred free end of the application is round or oval or the section on free end top
For ellipse and as the gradual transition of the reduction of diameter becomes circle.The point pawls 7 of left arm 1 and right arm 2 can firmly grasp the bone of patient
Tissue realizes the fixation of fixed frame assembly, and remains promptly state by retaining mechanism by can not loosen.
It should be understood that since the free end of left arm 1 and right arm 2 is both provided with point pawls 7, the same fixed frame assembly
Including at least two point pawls 7.If wound healing for convenience, same fixed frame assembly can only be arranged two point pawls 7, fracture at this time
The notch at position is smaller, and surgical wound heals faster, while being more favorable to doctor's operation.And bone tissue is consolidated in order to enhance
Determine effect, same fixed frame assembly can also be provided at least three point pawls 7.Two points are arranged in compared to one fixed frame assembly
The structure of pawl 7, multiple point pawls 7 can make fixed frame assembly fix bone tissue formation multiple spot, make fixed frame assembly and bone tissue
Connection is more stablized.Optionally, two or more point pawls 7 can be arranged in a free end in left arm 1 and right arm 2.It can
Choosing, same fixed frame assembly can also be set up in parallel at least two left arms 1, and each left arm 1 is equipped with point pawls 7, and same fixation
Whole left arms 1 of frame assembly are fixedly connected, to synchronize control to point pawls 7.
It in the course of surgery, can be first to carrying out the pre-processings such as debridement, disinfection, local anaesthesia around fracture；Then cut
Point pawls 7 are passed through notch by the both sides of fracture site, and alignment needs fixed fracture site, and utilizes the point of left arm 1 and right arm 2
Pawl 7 firmly grasps bone tissue；Fixed frame assembly is locked using retaining mechanism after left arm 1 and right arm 2 are firmly grasped in place.
Fracture fixator provided by the present application is firmly grasped by left arm 1 and right arm 2 and the bone tissue of immobilized patients, and left arm 1
With the section of right arm 2 to tapered by the direction of proximal end and form point pawls 7.Middle et al. Ke pegboard systems compared with the prior art
Mode, using fracture fixator provided by the present application implement perform the operation when without by fracture site all cut.Due to notch compared with
It is small, make script it is interior it is fixed split operation and become Minimally Invasive Surgery, it is achieved that reducing patient's infection risk, reducing patient's table
The effect of cicatrix of skin, while also reducing the working strength of healthcare givers.
Further, the opening angle of left arm 1 and right arm 2 is controlled in order to facilitate healthcare givers, any of the above-described
On the basis of embodiment, fracture fixator further includes the interim operation pincers for facilitating control left arm 1 and 2 opening and closing degree of right arm
12, interim operation pincers 12 include two hinged clamp handles in middle part, and the first end of clamp handle is equipped with the finger ring being conveniently operated, and the of clamp handle
Two ends are equipped with connecting pole；Left arm 1 and right arm 2 are equipped with for coordinating fixed handle hole 6 with connecting pole.
Specifically, with reference to figure 4, the structure of interim operation pincers 12 is similar to scissors, and two clamp handles are cut with scissors in rod-shaped and middle part
It connects, when two clamp handles are around hinged shaft rotation, the end of two clamp handles can realize opening and be closed.One end of clamp handle is arranged
Finger ring, to facilitate healthcare givers to hold clamp handle；The other end of clamp handle is arranged connecting pole, the section of connecting pole can it is rounded,
The shapes such as polygon, correspondingly, with reference to figure 7, left arm 1 and right arm 2 are both provided with handle hole 6.
Optionally, handle hole 6 and the cross sectional shape of connecting pole are consistent, and the inner wall of handle hole 6 can be outer with connecting pole
The connection of interim operation pincers 12 and fixed frame assembly is realized in week fitting.Optionally, handle hole 6 can be specifically set in free end
The transitional region of arcuate structure and hinged end.
In the course of surgery, the connecting pole of interim operation pincers 12 is inserted into inside handle hole 6, realizes 12 Hes of interim operation pincers
The connection of fixed frame assembly, healthcare givers can control the opening angle of left arm 1 and right arm 2 by controlling the folding of finger ring, from
And bone tissue is firmly grasped.
Further, if bone splitting or free bone fracture, a fixed frame assembly, which will be used alone, will dissociate
Bone block and main bone fixation；And consider that the bone of some patients is broken from middle part, and for fixation of bone fragments, one kind provided by the present application
In embodiment, fixed frame assembly at least there are two, and fracture fixator further includes the opposite position for fixing each fixed frame assembly
It sets, so that the bindiny mechanism 3 that fracture site aligns.
Specifically, fixed frame assembly at least there are two, retaining mechanism can be by the left arm 1 of the same fixed frame assembly and the right side
Arm 2 is fixed.In the course of surgery, the epimere of patient bone broken line and hypomere are connected from different fixed frame assemblies respectively, fracture
After the completion of one broken ends of fractured bone is fixed, repetitive operation is simultaneously fixed another broken ends of fractured bone；Then utilize bindiny mechanism 3 to each fixation
Frame assembly is fixed, and forms firm overall structure, to make fracture site keep good contraposition to line.
It should be understood that after fracture site reparation, bindiny mechanism 3 can be first unclamped, each fixed frame assembly is made to be in
Seperated state then adjusts retaining mechanism and is at disengaged position, to make left arm 1 and right arm 2 can be freely movable and final
Complete the dismounting of fixed frame assembly.
Further, it is contemplated that the effect of bindiny mechanism 3 is to make each fixed frame assembly to keep relative position relation, from
And fracture site is made to keep good alignment, while the second end of left arm 1 and right arm 2 is provided with point pawls 7.Therefore in order to keep away
Exempting from bindiny mechanism 3 interferes point pawls 7 to firmly grasp bone tissue, and bindiny mechanism 3 is arranged in the hinged end of left arm 1 and right arm 2, and preferably sets
It sets in side of the articulated shaft 5 far from point pawls 7.
Optionally, in a kind of specific embodiment provided by the present application, bindiny mechanism 3 includes the fixation set on 1 end of left arm
Block, fixed block are equipped with screw rod 31, and 31 periphery of screw rod is arranged with nut 32；Orifice plate 11, orifice plate are equipped between nut 32 and fixed block
11 are equipped with the through-hole that can be sheathed on 31 periphery of screw rod.
Specifically, with reference to figure 5 and Fig. 8, bindiny mechanism 3 may include fixed block, screw rod 31, nut 32 and orifice plate 11.Gu
Determine block to be arranged in the one end of left arm 1 far from point pawls 7, fixed block can be directly processed into left arm 1 during actual processing
Integral structure part.Screw rod 31 is connect with fixed block, and screw rod 31 is preferably provided at side of the fixed block far from articulated shaft 5.Hole
At least two through-holes are provided on plate 11, through-hole can be circle, and be carried out for convenience to the spacing of different fixed frame assemblies
It adjusts, through-hole can also be in oval or strip.After the through-hole of orifice plate 11 is set in 31 periphery of screw rod, installed on screw rod 31
Nut 32 is simultaneously clamped orifice plate 11 using nut 32 and fixed block, realizes the fixation of orifice plate 11；It should be understood that for convenience
Nut 32 is screwed, two laminated structures conveniently screwed can be symmetrical arranged outside nut 32.
Optionally, in another specific embodiment provided by the present application, bindiny mechanism 3 includes consolidating set on 1 end of left arm
Determine block, fixed block is equipped with orifice structure 33 parallel with the axis direction of articulated shaft 5, connecting rod 13 is equipped in orifice structure 33；Gu
Determine block and be equipped with threaded hole, the jackscrew 34 that can push 13 side wall of connecting rod is equipped in threaded hole.
Specifically, with reference to figure 6, bindiny mechanism 3 can also specifically include fixed block, orifice structure 33, connecting rod 13 and top
Silk 34.Fixed block is arranged in end of the left arm 1 far from point pawls 7.Orifice structure 33 can be blind hole, and for convenience to fixed frame
The spacing of assembly is adjusted, and orifice structure 33 preferably uses through-hole.The section of orifice structure 33 can it is rounded, oval or
Person's polygon can accommodate connecting rod 13.
The section of connecting rod 13 can rounded, oval, polygon or other shapes, in the course of surgery, connecting rod
13 both ends are connect with the orifice structure 33 of two fixed frame assemblies, therefore connecting rod 13 and orifice structure 33 are required to along vertical
The direction of 2 place plane of left arm 1 and right arm extends, and can prolong along the length direction of patient bone in connecting rod 13 to ensure
It stretches, different fixed frame assemblies is attached.
Threaded hole is connected to orifice structure 33, and jackscrew 34, which is provided with, to coordinate fixed external screw thread with threaded hole, when even
After extension bar 13 is inserted into orifice structure 33, screwing jackscrew 34 makes the end of jackscrew 34 be bonded with the side wall of connecting rod 13, realizes
The fixation of connecting rod 13 and fixed block.
In addition, in actual mechanical process, since the height at fracture line both ends is usually inconsistent, two fixed frames are total
After being fixed respectively with the epimere of fracture line and hypomere, there may be deviations for the height and angle of two fixed frame assemblies, and lead
Cause two orifice structures 33 can not be completely to just.In order to ensure that connecting rod 13 can fix two fixed frame assemblies, preferred hole
After the socket cooperation of mouth structure 33 and connecting rod 13, therebetween there are the activity surplus for adjusting position for connecting rod 13, so as to
Simultaneously fixed connecting rod 13 is flexibly put according to the position of two fixed frame assemblies.
In addition, with specific reference to Fig. 6, it is contemplated that the upper surface of fixed block is smaller to the interference of left arm 1 and right arm 2, therefore this
The axis of the preferred jackscrew of embodiment 34 passes through articulated shaft 5, i.e. jackscrew 34 and articulated shaft 5 to be distributed in the opposite both sides of connecting rod 13.
Further, the relative position for fixing left arm 1 and right arm 2 for convenience, in the base of any one above-mentioned embodiment
On plinth, retaining mechanism includes the first step lock 10 being connect with left arm 1 and the second step lock being connect with right arm 2, the first step
The side wall of the side wall of lock 10 and the second step lock is equipped with the teeth that can be intermeshed locking；Right arm 2 is equipped with controllable second step
Lock along articulated shaft 5 axis direction closer or far from the first step lock 10 adjustment structure.
Specifically, with reference to figure 3, in the form of sheets, teeth, tooth is arranged in the side wall of the two for the first step lock 10 and the second step lock
The section of tooth can be specially triangle or trapezoidal etc..Regulating mechanism can control the second step lock along the axis side of articulated shaft 5
To movement, the spacing of 10 side walls is locked with the first step so as to adjust the second step lock.When the first step lock 10 and the second step lock
Teeth both when fitting can be intermeshed and lock left arm 1 and right arm 2；Left arm 1 and right arm 2 are in pine when separated
Open state.
Optionally, the first step lock 10 and the second step lock are arc-shaped in the present embodiment, one end of the two respectively with a left side
Arm 1 and right arm 2 connect, and teeth are set to the side wall of the two；Arc core, the first step lock for the opening track that left arm 1 and right arm 2 are formed
The arc core that 10 arc core, the second step are locked is on the axis of articulated shaft 5.Specifically, the first step lock 10 and the second step lock pair
Claim distribution and the two is arc-shaped.The first step lock 10 and the second step lock can be with left arms 1 and right arm 2 in the course of surgery
Synchronous on-off, and left arm 1 and right arm 2 are locked.
Optionally, the circular arc shape that teeth can be locked perpendicular to step.Optionally, the first step lock 10 and the second step are locked
Arc length equipped with teeth part is all higher than the half that fixed frame assembly maximum open radian corresponds to the position arc length, to protect
When hindering left arm 1 and the opening maximum angle of right arm 2, the first step lock 10 and the second step lock can still be bonded locking.
Optionally, regulating mechanism includes the fixing bolt 9 set on right arm 2, the axis of the axis and articulated shaft 5 of fixing bolt 9
Line is parallel, and the second step lock tube is set to the periphery of fixing bolt 9, and fixing bolt 9 is equipped with the adjusting spiral shell of compressible second step lock
Cap 32.
Specifically, fixing bolt 9 extends along the length direction of connecting rod 13 or orifice plate 11, the first end of the second step lock is set
The through-hole of 9 periphery of fixing bolt can be set in by having, and make the second step lock that can be moved along the length direction of fixing bolt 9.1 He of left arm
It after right arm 2 is firmly grasped in place, screws adjusting nut 8 and second step is locked into compression, to make the first step lock 10 and the second step lock
Teeth be mutually twisted, realize left arm 1 and right arm 2 locking state.
It should be understood that the mobile reality that the spacing of the first step lock 10 and the second step lock can only be locked by the second step
It is existing, therefore the first step lock 10 can be fixedly connected by welding or other modes with left arm 1.Optionally, the first step lock 10
Fixing bolt 9 and adjusting nut 8 can also be utilized to be connect with left arm 1.
Optionally, the design parameter of each part of fracture fixator provided by the present application can refer to following data：
In fixed frame assembly, left arm 1 is made of medical titanium alloy, medical stainless steel or titanizing material, and integral thickness 2~
8mm, wherein handle hole 6 are diameter 2~8mm through-holes, and axis hole 4 is diameter 1.5~10mm through-holes.Right arm 2 uses medical titanium alloy
Or medical stainless steel is made, integral thickness is 1~7mm, and wherein handle hole 6 is diameter 2~8mm through-holes, and axis hole 4 is diameter 1.5
~10mm through-holes.The articulated shaft 5 of left arm 1 and right arm 2 can be used medical stainless steel and be made, articulated shaft 5 a diameter of 1.5~
10mm, length are 2~10mm.
In bindiny mechanism 3, nut 32 can be specifically made of medical stainless steel, and the nut structure in nut 32 can be adopted specifically
With M3~M6 metric system wing nuts.A diameter of 2~10mm of screw rod 31,5~25mm of length.Orifice plate 11 uses medical stainless steel material
Material, 15~80mm of length, 5~25mm of width, 1~10mm of thickness are uniformly distributed the through-hole of 2~10 2~8mm of diameter, each logical
The spacing in hole is 2.5~15mm.A diameter of 2~21mm of orifice structure 33；The outer diameter of columnar connecting rod 13 be 1.5~
20mm。
In retaining mechanism, the first step lock 10 and the second step lock material can be medical stainless steel, and the thickness of the two is equal
For 1.5~4mm, it is 0.2~3.5mm to be located at the teeth of the teeth on its surface away from the height for 0.5~5mm, teeth.Fixing bolt 9
It is highly 5~10mm using M2~M6 metric thread；The use medical stainless steel material of regulating nut 32, M2~M6 metric thread,
2~5mm of thickness can specifically select the nut structure of outer-hexagonal.
Interim operation pincers 12 are made of medical stainless steel, and integral thickness is 3~10mm, and length is 100~400mm, end
The connecting pole of portion's setting is cylinder, 2~9mm of diameter, long 5~20mm.
It should be understood that above-mentioned size is for reference only, it is not used in the design parameter for limiting each part.In addition, each part
The medical metals such as medical titanium and its alloy, medical stainless steel, Medical Cobalt-Based Alloys, medical magnesium alloy can also specifically be used.Respectively
The processing method of part can be specially mechanical processing, cast molding or compression molding etc..
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Fracture fixator provided by the present invention is described in detail above.Specific case used herein is to this
The principle and embodiment of invention is expounded, the explanation of above example is only intended to help understand the present invention method and
Its core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection of the claims in the present invention
In range.
Claims (10)
1. a kind of fracture fixator, which is characterized in that including：
Fixed frame assembly, the fixed frame assembly include hinged left arm (1) and right arm (2), the left arm (1) and the right arm
(2) free end is the tapered tip in section, to firmly grasp bone tissue；
For locking the left arm (1) and the right arm (2), the retaining mechanism that is rotated to avoid the two.
2. fracture fixator according to claim 1, which is characterized in that further include for facilitating the control left arm (1)
Interim operation with the right arm (2) opening and closing degree clamps (12), and the interim operation pincers (12) include two hinged pincers in middle part
Handle, the first end of the clamp handle are equipped with the finger ring being conveniently operated, and the second end of the clamp handle is equipped with connecting pole；The left arm (1)
It is equipped with the right arm (2) for coordinating fixed handle hole (6) with the connecting pole.
3. fracture fixator according to claim 2, which is characterized in that the section of left arm (1) free end is rounded
Or ellipse, the section of right arm (2) free end are rounded or oval.
4. fracture fixator according to claim 3, which is characterized in that the same fixed frame assembly is provided at least three
A tip for firmly grasping bone tissue.
5. according to the fracture fixator described in Claims 1 to 4 any one, which is characterized in that the fixed frame assembly is at least
There are two, further include for fixing the relative position of each fixed frame assembly, so that the bindiny mechanism that fracture site aligns
(3)。
6. fracture fixator according to claim 5, which is characterized in that the bindiny mechanism (3) includes being set to the left side
The fixed block of arm (1) end, the fixed block are equipped with screw rod (31), and screw rod (31) periphery is arranged with nut (32)；It is described
Orifice plate (11) is equipped between nut (32) and the fixed block, the orifice plate (11), which is equipped with, can be sheathed on the screw rod (31) periphery
Through-hole.
7. fracture fixator according to claim 5, which is characterized in that the bindiny mechanism (3) includes being set to the left side
The fixed block of arm (1) end, the fixed block are equipped with articulated shaft (5) axis direction with the left arm (1) and the right arm (2)
Parallel orifice structure (33) is equipped with connecting rod (13) in the orifice structure (33)；The fixed block is equipped with threaded hole, described
The jackscrew (34) of the connecting rod (13) side wall can be pushed by being equipped in threaded hole.
8. according to the fracture fixator described in Claims 1 to 4 any one, which is characterized in that the retaining mechanism include with
The first step lock (10) of left arm (1) connection and the second step lock being connect with the right arm (2), the first step lock
(10) side wall of side wall and second step lock is equipped with the teeth that can be intermeshed locking；The right arm (2) is equipped with controllable
Second step is made to lock along the axis direction of the left arm (1) and the articulated shaft (5) of the right arm (2), closer or far from institute
State the adjustment structure of the first step lock (10).
9. fracture fixator according to claim 8, which is characterized in that the first step lock (10) and second ladder
Grade lock is arc-shaped, and the two one end is connect with the left arm (1) and the right arm (2) respectively, and the teeth are set to the side of the two
Wall；It is the arc core for the opening track that the left arm (1) and the right arm (2) are formed, the arc core of first step lock (10), described
The arc core of second step lock is on the axis of the articulated shaft (5).
10. fracture fixator according to claim 8, which is characterized in that the regulating mechanism includes being set to the right arm
(2) axis of fixing bolt (9), the fixing bolt (9) is parallel with the axis of the articulated shaft (5), second step
Lock tube is set to the periphery of the fixing bolt (9), and the fixing bolt (9) is equipped with the adjusting spiral shell of the compressible second step lock
Cap (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699229.7A CN108720911A (en) | 2018-06-29 | 2018-06-29 | A kind of fracture fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699229.7A CN108720911A (en) | 2018-06-29 | 2018-06-29 | A kind of fracture fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108720911A true CN108720911A (en) | 2018-11-02 |
Family
ID=63925464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810699229.7A Pending CN108720911A (en) | 2018-06-29 | 2018-06-29 | A kind of fracture fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108720911A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112120776A (en) * | 2020-08-27 | 2020-12-25 | 北京市春立正达医疗器械股份有限公司 | Cable fixing and bundling device |
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| JPH11290338A (en) * | 1998-02-13 | 1999-10-26 | Medical U & A:Kk | Injury outside fixer |
| US6171307B1 (en) * | 1999-03-23 | 2001-01-09 | Orlich Jose Luis | Bone stabilizer and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112120776A (en) * | 2020-08-27 | 2020-12-25 | 北京市春立正达医疗器械股份有限公司 | Cable fixing and bundling device |
| CN112120776B (en) * | 2020-08-27 | 2022-03-11 | 北京市春立正达医疗器械股份有限公司 | Cable fixing and bundling device |
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