CN109171927A - A kind of neck of femur intramedullary nail - Google Patents
A kind of neck of femur intramedullary nail Download PDFInfo
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- CN109171927A CN109171927A CN201811169626.XA CN201811169626A CN109171927A CN 109171927 A CN109171927 A CN 109171927A CN 201811169626 A CN201811169626 A CN 201811169626A CN 109171927 A CN109171927 A CN 109171927A
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- neck
- pinning
- femur
- interior
- ontology
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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
- A61B17/72—Intramedullary pins, nails or other devices
-
- 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
- A61B17/74—Devices for the head or neck or trochanter of the femur
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/744—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to an intramedullary nail
-
- 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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (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 present invention provides a kind of neck of femur intramedullary nails, are related to orthopedic instrument technical field.The neck of femur intramedullary nail includes interior nail ontology, pinning screw, two fixed inserted sheets and pressurization tail cap；Interior this body side surface of nail is provided with two anti-taper grooves, and anti-taper groove extends to distal end by the proximal end of interior nail ontology；The position of the proximal end of interior nail ontology is provided with long hole pressurized tank, long hole pressurized tank is run through by the side of interior nail ontology towards the direction perpendicular to axis；It is provided with pinning mate with threaded holes in the proximal face of interior nail ontology, pinning mate with threaded holes is connected to long hole pressurized tank；Tail cap of pressurizeing includes cap head and screw rod；Fixed inserted sheet is inserted into anti-taper groove, and pinning screw passes through long hole pressurized tank, and screw rod is penetrated by pinning mate with threaded holes and abutted with pinning screw；The end of fixed inserted sheet is embedded into cap head.The present invention solves neck of femur nail existing in the prior art and is easy to loosen, and leads to the technical problem of fixed shakiness.
Description
Technical field
The present invention relates to orthopedic instrument technical fields, more particularly, to a kind of neck of femur intramedullary nail.
Background technique
Fracture of neck of femur usually passes through surgical operation and restores to damage location.It is a kind of normal for being followed closely using neck of femur and carrying out synthetism
The synthetism mode seen, and there are fixed forms that single, at implantation nail notch is larger for traditional neck of femur nail, and stablizes less
Good problem.
Based on this, the present invention provides a kind of neck of femur intramedullary nails to solve above-mentioned technical problem.
Summary of the invention
The purpose of the present invention is to provide a kind of neck of femur intramedullary nails, easy to solve neck of femur nail existing in the prior art
The technical issues of rotating, being not fixed firmly.
Based on above-mentioned purpose, the present invention provides a kind of neck of femur intramedullary nails, including interior nail ontology, pinning screw, two
Fixed inserted sheet and pressurization tail cap；
Described interior this body side surface of nail is symmetrically arranged with two anti-taper grooves, and the anti-taper groove is close by the interior nail ontology
End extends to distal end；Position close to the proximal end of the interior nail ontology is provided with long hole pressurized tank, and the long hole pressurized tank is by institute
The side for stating interior nail ontology is run through towards the direction perpendicular to axis；Pinning cooperation is provided in the proximal face of the interior nail ontology
Threaded hole, the pinning mate with threaded holes are connected to the long hole pressurized tank；The pressurization tail cap includes cap head and screw rod；
Two fixed inserted sheets are inserted respectively into two anti-taper grooves；The pinning screw passes through the long hole
Pressurized tank；The screw rod is penetrated by the pinning mate with threaded holes and is abutted with the pinning screw；The end of the fixed inserted sheet
Portion is embedded into the cap head.
Optionally, neck of femur intramedullary nail, the pinning screw includes ailhead and the body of rod；
The body of rod includes threaded portion and polished rod portion；The screw rod is penetrated and the polished rod by the pinning mate with threaded holes
Portion abuts.
Specifically, pinning screw by perpendicular to it is interior nail ontology direction be implanted into, with long hole pressurized tank cooperate, including ailhead and
Body of rod two parts.The body of rod includes threaded portion and polished rod portion, and threaded portion is positioned close to the position of ailhead, for fixing entire pinning
Screw；Polished rod portion is entered by one end of long hole pressurized tank, and is pierced by from the other end, is mainly used for and the screw rod in pressurization tail cap
It abuts.
Optionally, neck of femur intramedullary nail, the ailhead are arc surface close to the side of threaded portion.
After pinning screw placement to femur, it is easy to loosen because of frequent stress if ailhead is exposed, therefore in the present embodiment,
Pinning screw can be embedded into femur, and head of screw is designed to close to the side of threaded portion towards threaded portion circular arc outstanding
Face further prevents loosening for pinning screw to increase the contact area of head of screw and femur.
Optionally, neck of femur intramedullary nail, the end in the polished rod portion are arc surface.
Arc surface is set by the end in polished rod portion, the implantation of pinning screw can be facilitated, while during implantation,
Prevent the corner angle of end from causing to damage to femoral head.
Neck of femur intramedullary nail is surgically implanted into bone, if pinning screw is screwed into femoral head manually,
Operative incision is big.The setting of first plum blossom trough can cooperate with external auxiliary instrument, pass through external auxiliary instrument and the first plum
Pinning screw is screwed by the connection of flower trough, easy to operate, and operative incision is small, damaged caused by patient it is also smaller, more favorably
In the healing of patient wound.
Optionally, neck of femur intramedullary nail is provided with the first plum blossom trough on the end of the ailhead.
Optionally, the distal end of neck of femur intramedullary nail, the interior nail ontology is provided with symmetrical double blade.
During interior nail ontology implantation, the setting of double blade can remove the obstacle in implantation channel, be conducive to interior nail originally
Body rapidly enters.
Optionally, neck of femur intramedullary nail, the interior nail ontology are hollow structure.
Interior nail ontology is that hollow structure can reduce the overall weight of neck of femur intramedullary nail, while can use spicule work again
For guiding, interior nail ontology is screwed into skeleton.
Optionally, the proximal end of neck of femur intramedullary nail, the inserted sheet is cylindrical；
Fixing screwed hole is provided in the proximal face of the inserted sheet；It is corresponding with the fixing screwed hole in the cap head
Counter sink is provided on position.
The proximal end of fixed inserted sheet is embedded into the cap head of pressurization tail cap, and distal end is tapered.The distal end of fixed inserted sheet is by inverted cone
One end insertion for spending slot, after pressurization tail cap is fixed on interior nail ontology, fixed inserted sheet proximal end is embedded into pressurization tail cap, due to fixation
It is provided with fixing screwed hole in inserted sheet proximal face, counter sink is provided in the cap head for tail cap of pressurizeing, fixed inserted sheet, which is embedded into, to be added
It can be fixed by screw after pressure tail cap.
Optionally, neck of femur intramedullary nail is extended to the part of distal end on the inserted sheet, perpendicular to length direction by proximal end
Cross section be triangle.
The slot cooperated on interior nail ontology with fixed inserted sheet is an anti-taper groove, and the size of notch is less than the size of slot bottom.
To prevent fixed inserted sheet from deviating from from anti-taper groove, the partial cross sectional that fixed inserted sheet extends to distal end is set as triangle, three
The size on the angular shortest side of length is less than the size of notch.
Optionally, neck of femur intramedullary nail, the fixed inserted sheet, the pinning screw and the pressurization tail cap are titanium alloy
Material.
The neck of femur intramedullary nail provided by the invention, including interior nail ontology, pinning screw, two fixed inserted sheets and pressurization
Tail cap；Described interior this body side surface of nail is symmetrically arranged with two anti-taper grooves, and the anti-taper groove is by the interior proximal end for following closely ontology
Extend to distal end；Position close to the proximal end of the interior nail ontology is provided with long hole pressurized tank, and the long hole pressurized tank is by described
The side of interior nail ontology is run through towards the direction perpendicular to axis；Pinning cooperation spiral shell is provided in the proximal face of the interior nail ontology
Pit, the pinning mate with threaded holes are connected to the long hole pressurized tank；The pressurization tail cap includes cap head and screw rod；Two institutes
Fixed inserted sheet is stated to be inserted respectively into two anti-taper grooves；The pinning screw passes through the long hole pressurized tank；The spiral shell
Bar is penetrated by the pinning mate with threaded holes and is abutted with the pinning screw；The end of the fixed inserted sheet is embedded into the cap
In head.Bone neck intramedullary nail provided by the invention also includes that femoral head bone is loose for fixed in fracture of neck of femur.The femur
At neck intramedullary nail implanted femur fracture of cervical vertebra, inserted by the fixation that ontology side is followed closely in anti-taper groove and the fixed setting of pressurization tail cap inside
Piece can prevent nail ontology in entire from rotating, in addition, the setting of pinning screw can further increase pressure effect, simultaneously
Also can play the role of preventing interior nail ontology from rotating.
Based on this, the present invention has fixation, is not easy the advantages of loosening compared with original technology.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram at the first visual angle of neck of femur intramedullary nail provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram in Fig. 1 at A-A；
Fig. 3 is the structural schematic diagram in Fig. 1 at B-B；
Fig. 4 is the structural schematic diagram at the second visual angle of neck of femur intramedullary nail provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of interior nail ontology in neck of femur intramedullary nail provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of pinning screw in neck of femur intramedullary nail provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram that inserted sheet is fixed in neck of femur intramedullary nail provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of pressurization tail cap in neck of femur intramedullary nail provided in an embodiment of the present invention；
Fig. 9 is structural schematic diagram of the neck of femur Intramedullary nailing provided in an embodiment of the present invention on neck of femur marrow.
Icon: ontology is followed closely in 100-；The anti-taper groove of 101-；102- long hole pressurized tank；103- pinning mate with threaded holes；
The second plum blossom trough of 1031-；104- double blade；200- pinning screw；201- ailhead；The first plum blossom trough of 2011-；The 202- body of rod；
The threaded portion 2021-；2022- polished rod portion；300- fixes inserted sheet；The proximal end of 301- inserted sheet；The distal end of 302- inserted sheet；400- pressurization tail
Cap；401- cap head；402- screw rod.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
Fig. 1 is the structural schematic diagram at the first visual angle of neck of femur intramedullary nail provided in an embodiment of the present invention；Fig. 2 is A-A in Fig. 1
The structural schematic diagram at place；Fig. 3 is the structural schematic diagram in Fig. 1 at B-B；Fig. 4 is in neck of femur marrow provided in an embodiment of the present invention
Follow closely the structural schematic diagram at the second visual angle；Fig. 5 is that the structure of interior nail ontology in neck of femur intramedullary nail provided in an embodiment of the present invention is shown
It is intended to；Fig. 6 is the structural schematic diagram of pinning screw in neck of femur intramedullary nail provided in an embodiment of the present invention；Fig. 7 is that the present invention is real
Apply the structural schematic diagram that inserted sheet is provided in the neck of femur intramedullary nail of example offer；Fig. 8 is neck of femur marrow provided in an embodiment of the present invention
The structural schematic diagram for tail cap of pressurizeing in interior nail；Fig. 9 is neck of femur Intramedullary nailing provided in an embodiment of the present invention in neck of femur marrow
On structural schematic diagram.
As shown in Figures 1 to 5, a kind of neck of femur intramedullary nail, the neck of femur intramedullary nail packet are provided in the present embodiment
Include interior nail ontology 100,200, two, pinning screw fixed inserted sheets 300 and pressurization tail cap 400；
There are two anti-taper grooves 101 for interior 100 side of the nail ontology setting, and the anti-taper groove 101 is by the interior nail sheet
The proximal end of body 100 extends to distal end；Position close to the proximal end of the interior nail ontology 100 is provided with long hole pressurized tank 102, described
Long hole pressurized tank 102 is run through by the side of the interior nail ontology 100 towards the direction perpendicular to axis；The interior nail ontology 100
Pinning mate with threaded holes 103 is provided in proximal face, the pinning mate with threaded holes 103 connects with the long hole pressurized tank 102
It is logical；The pressurization tail cap 400 includes cap head 401 and screw rod 402；
The fixed inserted sheet 300 is inserted into the anti-taper groove 101, and the pinning screw 200 passes through the long hole and adds
Indent 102, the screw rod 402 are penetrated by the pinning mate with threaded holes 103 and are abutted with the pinning screw 200；It is described solid
The end for determining inserted sheet 300 is embedded into the cap head 401.
The neck of femur intramedullary nail provided by the invention, it is also thin including femoral head bone for fixed in fracture of neck of femur
Pine.Neck of femur is located near end of thighbone, including proximal end greater trochanter and positioned at the femoral head of distal end, greater trochanter, neck of femur and femoral head
It is axially to be connected, neck of femur intramedullary nail connect angulation implanted femur neck at medial arc with femoral shaft from greater trochanter and consolidated
It is fixed.Interior nail ontology 100, pinning screw 200, fixed inserted sheet 300 and pressurization tail cap 400 are with the use for the treatment of fracture of neck of femur, energy
Enough prevent nail ontology 100 in entire from rotating, in addition, the setting of pinning screw 200 can further increase pressure effect, together
When can also play the role of preventing interior nail ontology 100 from rotating.
Specifically, the setting of long hole pressurized tank 102 is followed closely at 100 proximal end 2/5ths of ontology inside, the proximal end of interior nail ontology 100
The second plum blossom trough 1031 is provided on end face.It is connect using external auxiliary instrument with the second plum blossom trough 1031, by interior nail ontology 100
After being implanted to neck of femur, fixed inserted sheet 300 is inserted into anti-taper groove 101 by one end of anti-taper groove 101, by pinning screw
200 are screwed into long hole pressurized tank 102, are finally screwed into pressurization tail cap 400 from pinning mate with threaded holes 103, until and pinning
Screw 200 abuts.Interior nail ontology 100 itself has pressure effect, pressurization tail cap 400 and pinning screw after being implanted to neck of femur
200 abut the effect for playing secondary pressurized, so that the fixation of interior nail ontology 100 more fastens.Since fixed inserted sheet 300 is arranged
The side for following closely ontology 100 inside has obstructed the continuity of interior nail 100 distal threads of ontology, even if interior nail ontology 100 is by external force
Effect be also less likely to occur to rotate.In addition, the setting of pinning screw 200 also further prevents interior nail ontology 100 from rotating.
Based on this, the present invention has fixation, is not easy the advantages of loosening compared with original technology.
As shown in fig. 6, the pinning screw 200 includes ailhead 201 and the body of rod 202 in the optinal plan of the present embodiment；
The body of rod 202 includes threaded portion 2021 and polished rod portion 2022；The screw rod 402 is by the pinning mate with threaded holes
103 penetrate and abut with the polished rod portion 2022.
Specifically, pinning screw 200 is cooperated by the direction implantation perpendicular to interior nail ontology 100 with long hole pressurized tank 102,
Including 202 two parts of ailhead 201 and the body of rod.The body of rod 202 includes threaded portion 2021 and polished rod portion 2022, and the setting of threaded portion 2021 exists
Close to the position of ailhead 201, for fixing entire pinning screw 200；Polished rod portion 2022 by long hole pressurized tank 102 one end into
Enter, and be pierced by from the other end, is mainly used for abutting with the screw rod 402 in pressurization tail cap 400.
In the above-mentioned technical solutions, further, the ailhead 201 is arc surface close to the side of threaded portion 2021.
After pinning screw 200 is implanted to femur, it is easy to loosen because of frequent stress if ailhead 201 is exposed, therefore in this reality
It applies in example, pinning screw 200 can be embedded into femur, and head of screw 201 is designed to court close to the side of threaded portion 2021
Pinning screw is further prevented to the arc surface outstanding of threaded portion 2021 to increase the contact area of head of screw 201 Yu femur
200 loosen.
In the above-mentioned technical solutions, further, the end in the polished rod portion 2022 is arc surface.
Arc surface is set by the end in polished rod portion 2022, the implantation of pinning screw 200 can be facilitated, while in implantation
In the process, prevent the corner angle of end from causing to damage to femoral head.
In the above-mentioned technical solutions, further, the first plum blossom trough 2011 is provided on the end of the ailhead 201.
Neck of femur intramedullary nail provided in this embodiment is surgically implanted into bone, if manually by pinning screw 200
It is screwed into femoral head, then operative incision is big.The setting of first plum blossom trough 2011 can cooperate with external auxiliary instrument, pass through
Pinning screw 200 is screwed by external auxiliary instrument and the connection of the first plum blossom trough 2011, easy to operate, and operative incision is small, right
It damages also smaller caused by patient, is more advantageous to the healing of patient wound.
In the optinal plan of the present embodiment, the distal end of the interior nail ontology 100 is provided with symmetrical double blade 104.
During interior nail ontology 100 is implanted into, the setting of double blade 104 can remove the obstacle in implantation channel, be conducive to
Interior nail ontology 100 rapidly enters.
In the optinal plan of the present embodiment, the interior nail ontology 100 is hollow structure.
Interior nail ontology 100 is that hollow structure can reduce the overall weight of neck of femur intramedullary nail, while can use bone again
Interior nail ontology 100 is screwed into skeleton by needle as guiding.
In the optinal plan of the present embodiment, the proximal end of the fixed inserted sheet 300 is cylindrical；
Fixing screwed hole is provided in the proximal face of the fixed inserted sheet 300；In the cap head 401 with the fixed spiral shell
Pit is provided with counter sink on corresponding position.
The proximal end of fixed inserted sheet 300 is embedded into the cap head 401 of pressurization tail cap 400, and distal end is tapered.Fixed inserted sheet 300
Distal end by anti-taper groove 101 one end be inserted into, pressurization tail cap 400 be fixed on interior nail ontology 100 after, fixation 300 proximal end of inserted sheet
It is embedded into pressurization tail cap 400, due to being provided with fixing screwed hole in fixed 300 proximal face of inserted sheet, the cap for tail cap 400 of pressurizeing
Counter sink is provided on first 401, fixed inserted sheet 300 can be fixed after being embedded into pressurization tail cap 400 by screw.
In the above-mentioned technical solutions, further, the part of distal end is extended on the fixed inserted sheet 300 by proximal end,
Cross section perpendicular to length direction is triangle.
The slot cooperated on interior nail ontology 100 with fixed inserted sheet 300 is an anti-taper groove 101, and the size of notch is less than slot
The size at bottom.To prevent fixed inserted sheet 300 from deviating from from anti-taper groove 101, the part that fixed inserted sheet 300 is extended to distal end is horizontal
Section is set as triangle, and the size on the shortest side of triangle length is less than the size of notch.It is emphasized that fixed inserted sheet
300 sections are the preferred embodiment that triangle is the present embodiment, and can be realized prevents fixed inserted sheet 300 by anti-taper groove
The other structures deviate from 101 also belong to the scope of protection of the invention.
In the optinal plan of the present embodiment, the fixed inserted sheet 300, the pinning screw 200 and the pressurization tail cap 400
It is titanium alloy material.
To sum up, neck of femur intramedullary nail provided by the invention, structure is simple, fixation, is not easy to loosen, therefore safety
Height is suitble to clinical demand, and neck of femur intramedullary nail tensile strength is high, is suitable for fracture of neck of femur, and operative incision is small, and perform the operation quick side
Just purpose.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of neck of femur intramedullary nail, which is characterized in that including interior nail ontology, pinning screw, two fixed inserted sheets and pressurization tail
Cap；
Described interior this body side surface of nail is symmetrically arranged with two anti-taper grooves, and the anti-taper groove is prolonged by the proximal end of the interior nail ontology
Extend to distal end；Position close to the proximal end of the interior nail ontology is provided with long hole pressurized tank, and the long hole pressurized tank is by described interior
The side for following closely ontology is run through towards the direction perpendicular to axis；Pinning matching thread is provided in the proximal face of the interior nail ontology
Hole, the pinning mate with threaded holes are connected to the long hole pressurized tank；The pressurization tail cap includes cap head and screw rod；
Two fixed inserted sheets are inserted respectively into two anti-taper grooves；The pinning screw pressurizes across the long hole
Slot；The screw rod is penetrated by the pinning mate with threaded holes and is abutted with the pinning screw；The end of the fixed inserted sheet is embedding
Enter into the cap head.
2. neck of femur intramedullary nail according to claim 1, which is characterized in that the pinning screw includes ailhead and the body of rod；
The body of rod includes threaded portion and polished rod portion；The screw rod is penetrated by the pinning mate with threaded holes and is supported with the polished rod portion
It connects.
3. neck of femur intramedullary nail according to claim 2, which is characterized in that the ailhead is circle close to the side of threaded portion
Cambered surface.
4. neck of femur intramedullary nail according to claim 3, which is characterized in that the end in the polished rod portion is arc surface.
5. neck of femur intramedullary nail according to claim 3, which is characterized in that be provided with plum blossom on the end of the ailhead
Slot.
6. neck of femur intramedullary nail according to claim 1, which is characterized in that the distal end of the interior nail ontology is provided with symmetrically
Double blade.
7. neck of femur intramedullary nail according to claim 1, which is characterized in that the interior nail ontology is hollow structure.
8. neck of femur intramedullary nail according to claim 1, which is characterized in that the proximal end of the inserted sheet is cylindrical；
Fixing screwed hole is provided in the proximal face of the inserted sheet；Position corresponding with the fixing screwed hole in the cap head
On be provided with counter sink.
9. neck of femur intramedullary nail according to claim 7, which is characterized in that extend to distal end by proximal end on the inserted sheet
Part, the cross section perpendicular to length direction are triangle.
10. neck of femur intramedullary nail according to claim 1, which is characterized in that the fixed inserted sheet, the pinning screw and
The pressurization tail cap is titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811169626.XA CN109171927A (en) | 2018-10-08 | 2018-10-08 | A kind of neck of femur intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811169626.XA CN109171927A (en) | 2018-10-08 | 2018-10-08 | A kind of neck of femur intramedullary nail |
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| Publication Number | Publication Date |
|---|---|
| CN109171927A true CN109171927A (en) | 2019-01-11 |
Family
ID=64946941
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811169626.XA Pending CN109171927A (en) | 2018-10-08 | 2018-10-08 | A kind of neck of femur intramedullary nail |
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| CN (1) | CN109171927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115645018A (en) * | 2022-10-09 | 2023-01-31 | 中国人民解放军空军军医大学 | Intramedullary lengthening device for neck of femur |
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| CN1269198A (en) * | 1999-04-01 | 2000-10-11 | 陈永铵 | Femur neck and head fixing screw with interlocking fixation structure |
| CN201227319Y (en) * | 2007-11-21 | 2009-04-29 | 马磊 | Automatic compression anti-rotation intramedullary pin for treating femoral fracture |
| US8114078B2 (en) * | 2003-04-09 | 2012-02-14 | Synthes Usa, Llc | Intramedullary nail for femur fracture fixation |
| US9345522B2 (en) * | 2012-05-22 | 2016-05-24 | Matthew Songer | Bone fixation screw and method |
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2018
- 2018-10-08 CN CN201811169626.XA patent/CN109171927A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1269198A (en) * | 1999-04-01 | 2000-10-11 | 陈永铵 | Femur neck and head fixing screw with interlocking fixation structure |
| US8114078B2 (en) * | 2003-04-09 | 2012-02-14 | Synthes Usa, Llc | Intramedullary nail for femur fracture fixation |
| CN201227319Y (en) * | 2007-11-21 | 2009-04-29 | 马磊 | Automatic compression anti-rotation intramedullary pin for treating femoral fracture |
| US9345522B2 (en) * | 2012-05-22 | 2016-05-24 | Matthew Songer | Bone fixation screw and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115645018A (en) * | 2022-10-09 | 2023-01-31 | 中国人民解放军空军军医大学 | Intramedullary lengthening device for neck of femur |
| CN115645018B (en) * | 2022-10-09 | 2024-04-16 | 中国人民解放军空军军医大学 | Femoral neck intramedullary extension device |
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