CN105943147A - A femoral neck fracture locking and fixing device and method - Google Patents
A femoral neck fracture locking and fixing device and method Download PDFInfo
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- CN105943147A CN105943147A CN201610357597.4A CN201610357597A CN105943147A CN 105943147 A CN105943147 A CN 105943147A CN 201610357597 A CN201610357597 A CN 201610357597A CN 105943147 A CN105943147 A CN 105943147A
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- locking nail
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- lock hole
- lockplate
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/686—Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention provides a femoral neck fracture locking and fixing device and method. The femoral neck fracture locking and fixing device comprises a locking plate, a first locking screw, a second locking screw and a third locking screw; the shape of the inner side surface of the locking plate matches the shape of the lower portion of the greater trochanter of the femur; the locking plate is provided with a first locking hole, a second locking hole and a third locking hole in an inclined structure; the rear ends of the first locking screw, the second locking screw and the third locking screw are connected with the locking plate at the first locking hole, the second locking hole and the third locking hole; the first locking screw, the second locking screw, the third locking screw and the locking plate form a structure of a triangular pyramid. The femoral neck fracture locking and fixing device and method can effectively resist external force while guaranteeing the reduction of the femoral neck; only three locking screws are needed, so that the extra injury to patients caused by using many screws is avoided and the recovery of the patients is facilitated.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of fracture of femoral neck locking fixing device and
Method.
Background technology
In recent years, along with aged tendency of population and traffic, the development of building industry, old people and between twenty and fifty femur
The sickness rate of fracture of cervical vertebra is in being gradually increasing trend.Fracture of femoral neck refers to that fracture in neck of femur position, generally
Refer to that femoral head, down to the fracture between base of nebk ot femur, is the modal class fracture of hip.Due to stock
Bone fracture of cervical vertebra particularity on Pathophysiology and biomechanics, the emphasis of its treatment always orthopaedics and tranmstology research.
Traditional, for the replacement and fixation of patients with fracture of neck, in general employing, locking Therapeutic Method, uses many
Root locking nail and lockplate cooperatively form locking and pressurizing.But, when it is installed to patient femur, except many
Outside locking nail, the most also need to install at least fixing nail additional, patient is caused additional injury.Additionally, work as
After squeezing into locking nail, external force such as shearing force, torsion effect under, often occur nail shifting phenomena, very
To poking the outside upper quadrant of femur, it sometimes appear that move back nail situation, locking effect is the best, and is unfavorable for patient
Rehabilitation.
Summary of the invention
Based on this, the invention reside in the defect overcoming prior art, it is provided that one can be effective against external force,
Squeeze in the patient nail number is less, be conducive to Rehabilitation fracture of femoral neck locking fixing device and method.
Its technical scheme is as follows:
A kind of fracture of femoral neck locking fixing device, including lockplate, the first locking nail, the second locking nail with
And the 3rd locking nail, the inner surface of described lockplate matches with greater trochanter of femur lower shape, described lock
Determine plate and be provided with the first lock hole of ramp-like configuration, the second lock hole and the 3rd lock hole, described first
Locking nail, the second locking nail, the 3rd locking nail rear end respectively described first lock hole, the second lock hole,
It is connected with described lockplate at 3rd lock hole, described first locking nail, the second locking nail, the 3rd locking nail
Rhizoma Sparganii cone structure is formed with described lockplate.
Wherein in an embodiment, described first lock hole and the second lock hole are positioned on same level line, institute
Stating the longitudinal median plane between the first lock hole and the second lock hole is first plane of symmetry, described first locking
The axis in hole is towards described first plane of symmetry biasing, and the axis of described second lock hole is symmetrical towards described first
Face biases, and the axis of described 3rd lock hole is positioned on described first plane of symmetry.
Wherein in an embodiment, when described lockplate is arranged on femur, the axle of described first lock hole
The axis extended line of line extended line, the axis extended line of the second lock hole and the 3rd lock hole is all through femur
Center of effort, the front end of described first locking nail, the second locking nail and the 3rd locking nail lays respectively at femur
At center of effort.
Wherein in an embodiment, when described lockplate is arranged on femur, the axle of described first lock hole
The axis extended line of line extended line and the second lock hole lays respectively at the both sides of femur center of effort, and the described 3rd
The axis extended line of lock hole is through femur center of effort, described first locking nail and the front end of the second locking nail
Laying respectively at the both sides of femur center of effort, the leading section of described 3rd locking nail is through the first locking nail and the
Between two locking nails and by femur center of effort.
Wherein in an embodiment, the axis of described first lock hole is towards described first plane of symmetry biasing
1-5 °, the axis of described second lock hole biases 1-5 ° towards described first plane of symmetry.
Wherein in an embodiment, described first lock hole and the second lock hole are positioned at the upper of described lockplate
Portion, described 3rd lock hole is positioned at the bottom of described lockplate；Or, described first lock hole and the second lock
Determining hole and be positioned at the bottom of described lockplate, described 3rd lock hole is positioned at the top of described lockplate.
Wherein in an embodiment, described first lock hole, the second lock hole and the hole of the 3rd lock hole
Wall is provided with female thread, and described first locking nail, the second locking nail, the rear end of the 3rd locking nail are respectively equipped with
The rear end external screw thread matched with female thread, described first locking nail, the second locking nail, the 3rd locking nail divide
Do not threaded with described lockplate, before described first locking nail, the second locking nail and the 3rd locking nail
End is respectively equipped with front end external screw thread, described first locking nail, the second locking nail and the rear end of the 3rd locking nail
Externally threaded pitch is less than the externally threaded pitch in its front end.
Wherein in an embodiment, described first locking nail, the second locking nail and the 3rd locking nail are
Hollow nail.
A kind of fracture of femoral neck locking fixing means, comprises the following steps:
The inner surface of lockplate is jointly mounted to greater trochanter of femur bottom；
First locking nail, the second locking nail, the 3rd locking nail respectively by the first lock hole of lockplate, the
Two lock holes, the 3rd lock hole are screwed into, the rear end of the first locking nail, the second locking nail and the 3rd locking nail with
Lockplate connects, and the front end of the first locking nail, the second locking nail and the 3rd locking nail is respectively positioned on femur stress
Center；
First locking nail, the second locking nail, formation Rhizoma Sparganii cone structure between the 3rd locking nail and lockplate.
Wherein in an embodiment, before the inner surface of lockplate is jointly mounted to greater trochanter of femur bottom,
Further comprise the steps of:
Judge the corner dimension of fracture line and horizontal plane, if fracture line and horizontal plane angle are more than 45 °, use
Anti-product structure, the first lock hole on lockplate and the second lock hole are positioned at the top of lockplate, on lockplate
The 3rd lock hole be positioned at the bottom of lockplate；If fracture line and horizontal plane angle are less than 45 °, use certified products
Structure, the first lock hole on lockplate and the second lock hole are positioned at the bottom of lockplate, on lockplate
Three lock holes are positioned at the top of lockplate.
The beneficial effects of the present invention is:
Above-mentioned fracture of femoral neck locking fixing device, described lockplate is arranged on greater trochanter of femur bottom, and its
Inner surface matches with greater trochanter of femur lower shape, it is possible to fit tightly with femur.First locking nail,
Second locking nail and the 3rd locking nail actual installation to time in femur, the first locking nail, the second locking nail,
Three locking nails and the lockplate fitted tightly with greater trochanter of femur bottom can form Rhizoma Sparganii cone structure, stock
Bone three locking nail Impact direction when by shearing force are different, and three locking nails are with lockplate each other
Can form restriction, locking nail is not susceptible to displacement, moves back nail phenomenon.The fixing dress of described fracture of femoral neck locking
Put and can be effective against external force in the case of resetting guaranteeing neck of femur, and only need to use three locking nails,
Without using many nails that patient produces additional injury, squeeze into nail number in the patient less, beneficially patient
Rehabilitation.
Described fracture of femoral neck locking fixing means, is jointly mounted to femur by the inner surface of lockplate and turns greatly
Sub-bottom, the first locking nail, the second locking nail, the 3rd locking nail be screwed into after femur can and lockplate between
Forming firm Rhizoma Sparganii cone structure, femur three locking nail Impact direction when by shearing force are different,
Three locking nails can form restriction each other with lockplate, and locking nail is not susceptible to displacement, moves back nail phenomenon,
External force, beneficially Rehabilitation can be effective against.Further, the first locking nail, the second locking nail and
The front end of three locking nails is respectively positioned at femur center of effort, on the one hand can more strengthen Rhizoma Sparganii cone structure
Steadiness, on the other hand, the front end of the first locking nail, the second locking nail and the 3rd locking nail is positioned at stress
Center, is not passed through the outside upper quadrant of femur, is difficult to poke femur, beneficially Rehabilitation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fracture of femoral neck locking fixing device described in the embodiment of the present invention one；
Fig. 2 is the scheme of installation of the fracture of femoral neck locking fixing device described in the embodiment of the present invention one；
Fig. 3 is the structural representation of the fracture of femoral neck locking fixing device described in the embodiment of the present invention two；
Fig. 4 is the scheme of installation of the fracture of femoral neck locking fixing device described in the embodiment of the present invention two；
Fig. 5 is the schematic flow sheet of the fracture of femoral neck locking fixing means described in the embodiment of the present invention.
Description of reference numerals:
10, lockplate, the 12, first lock hole, the 14, second lock hole, the 16, the 3rd lock hole, 20,
First locking nail, the 30, second locking nail, the 40, the 3rd locking nail, 100, femur, 110, neck of femur,
120, greater trochanter of femur.
Detailed description of the invention
Below embodiments of the invention are described in detail:
Embodiment one
As shown in Figure 1 and Figure 2, a kind of fracture of femoral neck locking fixing device, including lockplate 10, first
Locking nail the 20, second locking nail 30 and the 3rd locking nail 40.The inner surface of described lockplate 10 and stock
The lower shape of bone greater trochanter 120 matches, and described lockplate 10 is provided with the first locking of ramp-like configuration
Hole the 12, second lock hole 14 and the 3rd lock hole 16.Described first locking nail the 20, second locking nail 30,
The rear end of the 3rd locking nail 40 is respectively at described first lock hole the 12, second lock hole the 14, the 3rd lock hole
It is connected with described lockplate 10 at 16, described first locking nail the 20, second locking nail the 30, the 3rd locking nail
40 form Rhizoma Sparganii cone structure with described lockplate 10.Described first lock hole the 12, second lock hole 14 with
And the straight line line that the 3rd between the lock hole 16 hole heart on the outer surface of described lockplate 10 is formed as
Triangle, and then make described first locking nail the 20, second locking nail the 30, the 3rd locking nail 40 with described
Lockplate 10 forms Rhizoma Sparganii cone structure.The inner surface of lockplate 10 refers to that lockplate 10 is arranged on human body
The surface contacted with femur 100 time on femur 100, outer surface refers to the surface of femur 100.
Concrete, on the hole wall of described first lock hole the 12, second lock hole 14 and the 3rd lock hole 16
Being provided with female thread, the rear end of described first locking nail the 20, second locking nail the 30, the 3rd locking nail 40 is respectively
It is provided with the rear end external screw thread matched with female thread, described first locking nail the 20, second locking nail the 30, the 3rd
Locking nail 40 is threadeded with described lockplate 10 respectively, described first locking nail the 20, second locking nail 30
And the 3rd the front end of locking nail 40 be respectively equipped with front end external screw thread, described first locking nail 20, second locks
The externally threaded pitch in rear end of nail 30 and the 3rd locking nail 40 is less than the externally threaded pitch in its front end.Use
Said structure, easy to connect, and first locking nail the 20, second locking nail the 30, the 3rd locking nail 40 twist
Enter process and fracture end can be realized pressurization.Described first locking nail the 20, second locking nail 30 and the 3rd locking
Nail 40 is hollow nail, offers in the middle part of first locking nail the 20, second locking nail 30 and the 3rd locking nail 40
The through hole of 1-1.5mm, it is simple to insert Kirschner wire.
General, greater trochanter of femur 120 position of different human body is different, and greater trochanter of femur 120 times
The contour structure in portion is essentially identical.Described lockplate 10 is arranged on greater trochanter of femur 120 bottom, and inside it
Surface matches with greater trochanter of femur 120 lower shape, and lockplate closely can paste with the femur of different human body
Closing, coating performance is good and applied widely.First locking nail the 20, second locking nail 30 and the 3rd locking nail
40 actual installation to time in femur, first locking nail the 20, second locking nail the 30, the 3rd locking nail 40 and
The lockplate 10 fitted tightly with greater trochanter of femur 120 bottom can form Rhizoma Sparganii cone structure, sets up stock little
The rock-steady structure of beam, femur 100 three locking nail Impact direction when by shearing force are different, three locks
Fixed nail can form restriction each other with lockplate 10, and locking nail is not susceptible to displacement, moves back nail phenomenon.Institute
State fracture of femoral neck locking fixing device and can be effective against external force in the case of resetting guaranteeing neck of femur 110,
And only need to use three locking nails, it is not necessary to use many nails that patient produces additional injury, squeeze into trouble
In person's body, nail number is less, beneficially Rehabilitation.
Further, described first lock hole 12 and the second lock hole 14 are positioned on same level line, described
Longitudinal median plane between first lock hole 12 and the second lock hole 14 is first plane of symmetry, described first
The axis of lock hole 12 is towards described first plane of symmetry biasing, and the axis of described second lock hole 14 is towards institute
Stating the first plane of symmetry biasing, the axis of described 3rd lock hole 16 is positioned on described first plane of symmetry.Wherein,
Longitudinally refer to the direction along femur 100 length when lockplate 10 is arranged on femur 100.First locking nail 20,
The rear end of the second locking nail 30 and the 3rd locking nail 40 is separately mounted to the first lock hole 12, second and locks
On hole 14 and the 3rd lock hole 16, therefore, the first locking nail 20 and the first lock hole 12 coaxial line,
Two locking nails 30 and the second lock hole 14 coaxial line, the 3rd locking nail 40 and the 3rd lock hole 16 coaxial line.
Use said structure, on the one hand, the first locking nail the 20, second locking nail 30 and the 3rd locking nail
The position relationship of 40 meets femur mechanical characteristic, first locking nail the 20, second locking nail the 30, the 3rd locking nail
40 and lockplate 10 formed Rhizoma Sparganii cone structure more firm, it is possible to guaranteeing what neck of femur 110 resetted
In the case of be effective against external force, be difficult to move back nail；On the other hand, the first locking nail 20 is arranged on the first lock hole
To the first plane of symmetry biasing time on 12, the second locking nail 30 is right to first when being arranged on the second lock hole 14
Title face biases, and when first locking nail the 20, second locking nail 30 actual installation is screwed into femur, will not poke femur
Compact bone at neck 110, also will not expose femur 100, uses safety, will not produce additional injury to patient,
Be conducive to the rehabilitation of patient.In the present embodiment, the axis of described first lock hole 12 is symmetrical towards described first
Face biases 1-5 °, and the axis of described second lock hole 14 biases 1-5 ° towards described first plane of symmetry, can
Prevent first locking nail the 20, second locking nail 30 from poking the outside of femur 100, and make the first locking nail 20
With the front end of the second locking nail 30 near femur center of effort.It is further possible to prevent the first locking nail 20
Bias too big with the second locking nail 30 and interfere.Described femur center of effort refer to tension stress bone trabecula with
At the bone trabecular node of compressive resistance.
In the present embodiment, when described lockplate 10 is arranged on femur 100, described first lock hole 12
The axis extended line of axis extended line, the axis extended line of the second lock hole 14 and the 3rd lock hole 16 is equal
Through femur center of effort, described first locking nail the 20, second locking nail 30 and the 3rd locking nail 40
Front end lays respectively at femur center of effort.From side, three locking nails are shown as triangle fixed structure,
From spatially seeing that first locking nail the 20, second locking nail 30 and the 3rd locking nail 40 are directed to femur stress
Center, and the front end of first locking nail the 20, second locking nail 30 and the 3rd locking nail 40 is again less than stock
Bone center of effort, on the one hand, three locking nails can bear shearing force and the torsion of all directions, with locking
The Rhizoma Sparganii taper structural soundness that plate 10 is formed is higher, and locking nail is not susceptible to displacement, is difficult to move back nail；Another
Aspect, three locking nails, all away from the outside upper quadrant of femur, will not expose the situation of femur, will not
Damage to patient.
The structure of described fracture of femoral neck locking fixing device can be anti-product structure, it is also possible to for certified products structure.
Described first lock hole 12 and the second lock hole 14 are positioned at the top of described lockplate 10, described 3rd locking
Hole 16 is positioned at the bottom of described lockplate 10, when lockplate 10 is arranged on femur 100, the first lock hole
12, the second lock hole 14 and the 3rd lock hole 16 Kong Xinlian on the outer surface of described lockplate 10
Line is the triangle stood upside down, and is anti-product structure.Described first lock hole 12 is positioned at the second lock hole 14
The bottom of described lockplate 10, described 3rd lock hole 16 is positioned at the top of described lockplate 10, lockplate
10 when being arranged on femur 100, and first lock hole the 12, second lock hole 14 and the 3rd lock hole 16 exist
Hole heart line on the outer surface of described lockplate 10 is upright triangle, is certified products structure.Actual
When using described fracture of femoral neck locking fixing device, can select according to the corner dimension of fracture line with horizontal plane
Take the anti-product structure of employing or certified products structure.Concrete, if fracture line and horizontal plane angle are more than 45 °, can
Use the fracture of femoral neck locking fixing device of anti-product structure, if fracture line and horizontal plane angle are less than 45 °,
The neck of femur 110 that can use certified products structure is fractured locking device, and then makes more locking nail be perpendicular to as far as possible
Fracture line, improves shear-stable ability, increases the stability of fracture fixation.Neck of femur described in the present embodiment
110 fracture locking devices can be applied flexibly, fracture fixation according to the route selection structure of the actual fracture line of patient
Good stability.
A kind of fracture of femoral neck locking fixing means, comprises the following steps:
The inner surface of S100: lockplate 10 is jointly mounted to greater trochanter of femur 120 bottom；
Further, before S100 step, further comprise the steps of: the corner dimension judging fracture line with horizontal plane,
If fracture line and horizontal plane angle are more than 45 °, use anti-product structure, the first lock hole on lockplate 10
12 and second lock hole 14 be positioned at the top of lockplate 10, the 3rd lock hole 16 on lockplate 10 is positioned at
The bottom of lockplate 10；If fracture line and horizontal plane angle are less than 45 °, use certified products structure, lockplate
The first lock hole 12 on 10 and the second lock hole 14 are positioned at the bottom of lockplate 10, on lockplate 10
3rd lock hole 16 is positioned at the top of lockplate 10.During actual installation lockplate 10, can according to fracture line with
The corner dimension of horizontal plane chooses the anti-product structure of employing or certified products structure.If fracture line and horizontal plane angle
More than 45 °, the fracture of femoral neck locking fixing device of anti-product structure can be used, if fracture line presss from both sides with horizontal plane
Angle is less than 45 °, can use the fracture of femoral neck locking fixing device of certified products structure, and then make more locking
Nail is perpendicular to fracture line as far as possible, improves shear-stable ability, increases the stability of fracture fixation.
S200: the first locking nail the 20, second locking nail the 30, the 3rd locking nail 40 is respectively by lockplate 10
First lock hole the 12, second lock hole the 14, the 3rd lock hole 16 be screwed into, the first locking nail 20, second
Locking nail 30 is connected with lockplate 10 with the rear end of the 3rd locking nail 40, and the first locking nail 20, second locks
The front end of nail 30 and the 3rd locking nail 40 is respectively positioned at femur center of effort；
Shape between S300: the first locking nail the 20, second locking nail the 30, the 3rd locking nail 40 and lockplate 10
Become Rhizoma Sparganii cone structure.
Described fracture of femoral neck locking fixing means, is jointly mounted to femur by the inner surface of lockplate 10 big
Rotor 120 bottom, first locking nail the 20, second locking nail the 30, the 3rd locking nail 40 is screwed into femur 100
After can and lockplate 10 between form firm Rhizoma Sparganii cone structure, femur is three lockings when by shearing force
Nail Impact direction is different, and three locking nails can form restriction, locking nail each other with lockplate 10
It is not susceptible to displacement, moves back nail phenomenon, it is possible to be effective against external force, beneficially Rehabilitation.Further, first
The front end of locking nail the 20, second locking nail 30 and the 3rd locking nail 40 is respectively positioned at femur center of effort,
On the one hand the steadiness of Rhizoma Sparganii cone structure, on the other hand, the first locking nail 20, second can more be strengthened
The front end of locking nail 30 and the 3rd locking nail 40 is positioned at center of effort, away from the outside upper quadrant of femur,
It is difficult to poke femur, beneficially Rehabilitation.
Embodiment two
This enforcement place different from embodiment one is, the first locking nail 20, second in embodiment one is locked
Surely the front end of nail 30 and the 3rd locking nail 40 is respectively positioned at femur center of effort.And in the present embodiment, as
Shown in Fig. 3, Fig. 4, when described lockplate 10 is arranged on femur 100, the axle of described first lock hole 12
The axis extended line of line extended line and the second lock hole 14 lays respectively at the both sides of femur center of effort, and described
The axis extended line of three lock holes 16 is through femur center of effort, described first locking nail 20 and the second locking
The front end of nail 30 lays respectively at the both sides of femur center of effort, and the leading section of described 3rd locking nail 40 passes
Between first locking nail 20 and the second locking nail 30 and by femur center of effort.Three locking nails are arranged on
After on femur 100, from side, three locking nails are shown as triangle fixed structure, from spatially seeing first
Locking nail the 20, second locking nail 30 and the 3rd locking nail 40 form firm Rhizoma Sparganii cone structure, it is possible to
Guarantee that neck of femur 110 is effective against external force in the case of resetting, patient will not be produced additional injury, favorably
In Rehabilitation.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But can not therefore be construed as limiting the scope of the patent.It should be pointed out that, for this area
For those of ordinary skill, without departing from the inventive concept of the premise, it is also possible to make some deformation and change
Entering, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be as the criterion.
Claims (10)
1. fracture of femoral neck locking fixing device, it is characterised in that include lockplate, the first locking nail,
Second locking nail and the 3rd locking nail, the inner surface of described lockplate and greater trochanter of femur lower shape phase
Coupling, described lockplate is provided with the first lock hole of ramp-like configuration, the second lock hole and the 3rd locking
Hole, described first locking nail, the second locking nail, the 3rd locking nail rear end respectively described first lock hole,
Be connected with described lockplate at second lock hole, the 3rd lock hole, described first locking nail, the second locking nail,
3rd locking nail forms Rhizoma Sparganii cone structure with described lockplate.
Fracture of femoral neck the most according to claim 1 locking fixing device, it is characterised in that described the
One lock hole and the second lock hole are positioned on same level line, between described first lock hole and the second lock hole
Longitudinal median plane be first plane of symmetry, the axis of described first lock hole is inclined towards described first plane of symmetry
Putting, the axis of described second lock hole is towards described first plane of symmetry biasing, the axis of described 3rd lock hole
It is positioned on described first plane of symmetry.
Fracture of femoral neck the most according to claim 2 locking fixing device, it is characterised in that described lock
Determining plate when being arranged on femur, the axis extended line of described first lock hole, the axis of the second lock hole extend
The axis extended line of line and the 3rd lock hole all through femur center of effort, described first locking nail, second
The front end of locking nail and the 3rd locking nail lays respectively at femur center of effort.
Fracture of femoral neck the most according to claim 2 locking fixing device, it is characterised in that described lock
Determining plate when being arranged on femur, the axis extended line of described first lock hole and the axis of the second lock hole extend
Line lays respectively at the both sides of femur center of effort, and the axis extended line of described 3rd lock hole is through femur stress
Center, the front end of described first locking nail and the second locking nail lays respectively at the both sides of femur center of effort, institute
State the leading section of the 3rd locking nail through the first locking nail and the second locking nail and by femur stress
The heart.
5. lock fixing device according to the fracture of femoral neck described in claim 3 or 4, it is characterised in that institute
The axis stating the first lock hole biases 1-5 ° towards described first plane of symmetry, the axis court of described second lock hole
1-5 ° is biased to described first plane of symmetry.
Fracture of femoral neck the most according to claim 5 locking fixing device, it is characterised in that described the
One lock hole and the second lock hole are positioned at the top of described lockplate, and described 3rd lock hole is positioned at described locking
The bottom of plate；Or, described first lock hole and the second lock hole are positioned at the bottom of described lockplate, described
3rd lock hole is positioned at the top of described lockplate.
7. lock fixing device according to the fracture of femoral neck described in any one of claim 1-4, it is characterised in that
The hole wall of described first lock hole, the second lock hole and the 3rd lock hole is provided with female thread, and described first
Locking nail, the second locking nail, the rear end of the 3rd locking nail are respectively equipped with spiral shell outside the rear end matched with female thread
Stricture of vagina, described first locking nail, the second locking nail, the 3rd locking nail threaded with described lockplate respectively,
The front end of described first locking nail, the second locking nail and the 3rd locking nail is respectively equipped with front end external screw thread, institute
State the externally threaded pitch in rear end of the first locking nail, the second locking nail and the 3rd locking nail less than outside its front end
The pitch of screw thread.
8. lock fixing device according to the fracture of femoral neck described in any one of claim 1-4, it is characterised in that
Described first locking nail, the second locking nail and the 3rd locking nail are hollow nail.
9. a fracture of femoral neck locking fixing means, it is characterised in that comprise the following steps:
The inner surface of lockplate is jointly mounted to greater trochanter of femur bottom；
First locking nail, the second locking nail, the 3rd locking nail respectively by the first lock hole of lockplate, the
Two lock holes, the 3rd lock hole are screwed into, the rear end of the first locking nail, the second locking nail and the 3rd locking nail with
Lockplate connects, and the front end of the first locking nail, the second locking nail and the 3rd locking nail is respectively positioned on femur stress
Center；
First locking nail, the second locking nail, formation Rhizoma Sparganii cone structure between the 3rd locking nail and lockplate.
Fracture of femoral neck the most according to claim 9 locking fixing means, it is characterised in that locking
Before the inner surface of plate is jointly mounted to greater trochanter of femur bottom, further comprise the steps of:
Judge the corner dimension of fracture line and horizontal plane, if fracture line and horizontal plane angle are more than 45 °, use
Anti-product structure, the first lock hole on lockplate and the second lock hole are positioned at the top of lockplate, on lockplate
The 3rd lock hole be positioned at the bottom of lockplate；If fracture line and horizontal plane angle are less than 45 °, use certified products
Structure, the first lock hole on lockplate and the second lock hole are positioned at the bottom of lockplate, on lockplate
Three lock holes are positioned at the top of lockplate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357597.4A CN105943147A (en) | 2016-05-25 | 2016-05-25 | A femoral neck fracture locking and fixing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357597.4A CN105943147A (en) | 2016-05-25 | 2016-05-25 | A femoral neck fracture locking and fixing device and method |
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| Publication Number | Publication Date |
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| CN105943147A true CN105943147A (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610357597.4A Pending CN105943147A (en) | 2016-05-25 | 2016-05-25 | A femoral neck fracture locking and fixing device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852493A (en) * | 2018-07-13 | 2018-11-23 | 王刚 | A kind of novel thighbone neck locked pressurized bone plate |
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| US4488543A (en) * | 1982-01-19 | 1984-12-18 | Tornier S.A. France | Device for osteosynthesis of fractures of the extremities of the femur |
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| CN108852493A (en) * | 2018-07-13 | 2018-11-23 | 王刚 | A kind of novel thighbone neck locked pressurized bone plate |
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Application publication date: 20160921 |