CN205514872U - Auxiliary device in operation of intramedullary nail internal fixation - Google Patents
Auxiliary device in operation of intramedullary nail internal fixation Download PDFInfo
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- CN205514872U CN205514872U CN201620213402.4U CN201620213402U CN205514872U CN 205514872 U CN205514872 U CN 205514872U CN 201620213402 U CN201620213402 U CN 201620213402U CN 205514872 U CN205514872 U CN 205514872U
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- guiding
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Abstract
The utility model discloses an auxiliary device in operation of intramedullary nail internal fixation relates to orthopedics minimal access surgery utensil technical field to solving the current apparatus of putting into and following closely the point location difficulty to PFNA's income, the problem in the thighbone neck is put into to screw blade once accuracy. Auxiliary device in operation of intramedullary nail internal fixation, include: clamping orient base plate and guide pin clamping orient mechanism through the connection of locating lever subassembly, the clamping orient base plate arrange in the hip joint the top, and with the thighbone in the PFNA's that will put into position correspond from top to bottom, the clamping orient base plate can be used for that tentatively definite PFNA's put into position, the degree of depth and diameter, what guide pin clamping orient mechanism can be used for further accurate PFNA of sureness and screw blade puts into the position and the degree of depth, the locating lever subassembly can be used for the direction of putting into of adjusted spiral blade. The utility model discloses mainly be applied to among femoral intertrochanteric fracture 's the interior fixation treatment of closed reduction PFNA.
Description
Technical field
This utility model relates to orthopaedics Minimally Invasive Surgery fixture technology field, especially relates to a kind of intramedullary pin internal fixation operation
In auxiliary device.
Background technology
The sickness rate of intertrochanteric fracture of the femur accounts for 3%～4% all fractured, and accounts for Hip Fracture of being grown up
35.7%.Aged tendency of population and osteoporosis are the main causes that intertrochanteric fracture of the femur sickness rate is high.Along with aged tendency of population
Development, the treatment of intertrochanteric fracture of the femur faces huge challenge.
At present, Intramedullary nailing operation is uniform due to intramedullary pin bearing load, and mechanics is more reasonable, and percutaneous manipulation is lost blood relatively
Few, therefore it is usually used in treating intertrochanteric fracture of the femur.Anti-rotation PFN (proxmial femoral nail
Antirotation, PFNA) it is a kind of Intramedullary nail, because it has, fixing intensity is high, wound is little and meets biomechanics etc.
Advantage and be used more and more.Apparatus used by existing PFNA internal fixation operation is more scattered, generally includes: guide pin, survey
To sight, drill bit, screw, C-arm X-ray machine；Wherein, guide pin is used for determining that lateral sight is used for inserting into nail point position
Screw blade is with fixing PFNA, and drill bit is for getting out the passage of corresponding guide pin and screw, and C-arm X-ray machine is used for fluoroscopic observation.
Concrete operation method is after reduction of the fracture success, femoral greater trochanter top upwards make 3-5cm stringer otch, outside passivity is separated
Diductor muscle and peripheral structure, patient's finger touches greater trochanter summit and is placed into guide pin, by C-arm X-ray to primarily determine that into nail point
Machine, fluoroscopic observation guide pin position and determine that ideal enters to follow closely a little；Insert the main nail of PFNA of coupling after expanding marrow along guide pin, have an X-rayed tune simultaneously
The degree of depth that the main nail of whole PFNA is inserted and top rake；Under lateral sight guides, in neck of femur, pierce one piece of location guide pin, make
It is on the lower side that location guide pin is positioned at the central authorities of the neck of femur longitudinal axis, then fluoroscopic examination just, the position of location, position, side guide pin and the degree of depth, with corresponding
Drill bit along guide pin hole, laterally screw blade squeezed in neck of femur by sight, and fluoroscopic observation determines the position of screw blade
Put.
But, present inventor finds, PFNA of the prior art inserts apparatus in internal fixation for PFNA's
Enter to follow closely point location difficulty, and cannot guarantee that PFNA is positioned at femoral bone cavitas medullaris central authorities on vector position, cause screw blade to be positioned at stock
Partial in bone neck, thus more difficult disposably accurately insert screw blade；Additionally, it is fixed repeatedly to adjust C-arm X-ray machine perspective
Position, also can increase open-assembly time and the operating time of doctors and patients' X-ray, make patient tolerance decline, and causes the problems such as operation pollution.
Utility model content
The purpose of this utility model is to provide the auxiliary device in a kind of intramedullary pin internal fixation operation, to solve existing skill
PFNA in art inserts apparatus and enters to follow closely point location difficulty for PFNA in internal fixation operation, and screw blade cannot be disposably accurate
Really insert the problem in neck of femur.
This utility model provides the auxiliary device in a kind of intramedullary pin internal fixation operation, including: positioning and guiding substrate, guide pin
Positioning guide mechanism, positioning rod component；Described positioning and guiding substrate and described guide pin positioning guide mechanism are by described location bar
Assembly connects；Described positioning and guiding substrate is placed in the top of hip joint and upper and lower with the position of PFNA that will insert in femur
Correspondence, described positioning and guiding substrate can be used in primarily determining that the implantation site of described PFNA, the degree of depth and diameter；Described lead
Pin positioning guide mechanism can be used in the most accurately determining putting of the implantation site of described PFNA and the degree of depth and screw blade
Enter position and the degree of depth；Described positioning rod component can be used in adjusting the placing direction of described screw blade.
Wherein, described positioning and guiding substrate includes horizontal location plate, main nail substrate and screw blade substrate；Described level is fixed
Position plate is positioned at the upper surface of described main nail substrate, and described horizontal location plate closes on one end of described main nail substrate near-end and is provided with finger
Pin；It is positioned at far-end on described main nail substrate and is provided with hole, location；Described screw blade substrate plugs into described main nail substrate
In close end.
Preferably, described main nail substrate is provided with the first void region；It is provided with second on described screw blade substrate
Void region.
Specifically, described guide pin positioning guide mechanism includes screw blade guide pin pilot sleeve, guides guide pin fairlead
Cylinder, screw blade guide pin, guiding guide pin and side caster assembly therefor；Described screw blade guide pin pilot sleeve and described guiding
Guide pin pilot sleeve parallel side-by-side connects, and described screw blade guide pin pilot sleeve is connected with described positioning rod component；Described
Screw blade guide pin is fed through the axle center of the screw blade passage of the distal portion being positioned at described side caster assembly therefor, and described guiding is led
Pin is fed through the fluting of the distal portion being positioned at described side caster assembly therefor；During use, described screw blade guide pin penetrates described spiral shell
In rotation blade guide pin pilot sleeve, described guiding guide pin penetrates in described guiding guide pin pilot sleeve.
Further, the near-end of described side caster assembly therefor is provided with main nail connecting hole, and described main nail connection hole connects
Soft tissue is had to protect sleeve.
Further, described positioning rod component includes the first perpendicular positioning bar and neck of femur leans forward location bar；Described
First perpendicular positioning bar be fixedly arranged in the middle of disk, described disk be provided centrally with rotary shaft；Described first perpendicular positioning bar
With described neck of femur lean forward location bar be movably connected by described rotary shaft.
Wherein, described positioning and guiding substrate also includes vertical sleeve, described vertical sleeve and described first perpendicular positioning
Bar is fed through described horizontal location plate respectively and fixes with described main nail substrate.
Specifically, described positioning rod component also includes the second perpendicular positioning bar；Described second perpendicular positioning bar is with described
Neck of femur leans forward and positions one end connection of bar, the bottom of described second perpendicular positioning bar and described screw blade guide pin pilot sleeve
Connect.
Further, the angle between near-end axis and the far-end axis of described main nail substrate is 6 degree, described main nail substrate
Far-end axis and the axis of described screw blade substrate between angle be 130 degree or 135 degree.
Further, a diameter of 2mm in the hole, described location of described main nail substrate.
Relative to prior art, the auxiliary device in a kind of intramedullary pin internal fixation operation described in the utility model have with
Lower advantage:
In auxiliary device in a kind of intramedullary pin internal fixation operation that this utility model provides, including: positioning and guiding substrate,
Guide pin positioning guide mechanism, positioning rod component；Positioning and guiding substrate is connected by positioning rod component with guide pin positioning guide mechanism；
Positioning and guiding substrate is placed in the top of hip joint and the most corresponding with the position of the PFNA that will insert in femur, positioning and guiding
Substrate can be used in primarily determining that the implantation site of PFNA, the degree of depth and diameter；Guide pin positioning guide mechanism can be used in into one
Step accurately determines the implantation site of PFNA and the degree of depth and the implantation site of screw blade and the degree of depth；Positioning rod component can be used
In the placing direction adjusting screw blade.Thus analyze and understand, in a kind of intramedullary pin internal fixation operation that this utility model provides
Auxiliary device, the implantation site of PFNA, the degree of depth, Yi Jizhi can be primarily determined that after perspective with positioning and guiding substrate as scale
Footpath, effectively reduces the number of times of hands fluoroscopy during operation；It is accurately positioned by guide pin positioning guide mechanism, it is thus possible to further determine that
The implantation site of PFNA and the degree of depth and the implantation site of screw blade and the degree of depth；By the position of adjustment positioning rod component
Adjust the placing direction of screw blade, thus realize screw blade accurately fixing PFNA.Therefore, this utility model provides
Auxiliary device in a kind of intramedullary pin internal fixation operation, i.e. can complete to position accordingly implementing operation consent, accurately determine
The placing direction and the degree of depth that enter to follow closely point, placing direction and the degree of depth and screw blade of PFNA, not only simplify operation process, for
Wicresoft's Intertrochanteric provides new departure, and ensure that operation reaches preferable effect, simultaneously
Reduce the perspective number of times of X-ray in operation.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the auxiliary device in a kind of intramedullary pin internal fixation operation that Fig. 1 provides for this utility model embodiment
Figure；
Positioning and guiding in auxiliary device in a kind of intramedullary pin internal fixation operation that Fig. 2 provides for this utility model embodiment
The plan structure schematic diagram of substrate；
In auxiliary device in a kind of intramedullary pin internal fixation operation that Fig. 3 provides for this utility model embodiment, side guides
The structural representation of handle.
Reference:
1-positioning and guiding substrate；2-guide pin positioning guide mechanism；
3-positioning rod component；11-horizontal location plate；
12-main nail substrate；13-screw blade substrate；
111-pointer；121-positions hole；
122-the first void region；131-the second void region；
21-screw blade guide pin pilot sleeve；
22-guides guide pin pilot sleeve；23-screw blade guide pin；
24-guides guide pin；25-side caster assembly therefor；
251-screw blade passage；252-slots；
26-main nail connecting hole；27-soft tissue protection sleeve；
31-the first perpendicular positioning bar 32-neck of femur leans forward location bar；
311-disk 312-rotary shaft；
14-vertical sleeve；33-the second perpendicular positioning bar.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality
Novel protected scope.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only
Must have specific for the ease of describing this utility model and simplification description rather than instruction or the device of hint indication or element
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Language concrete meaning in this utility model.
The structural representation of the auxiliary device in a kind of intramedullary pin internal fixation operation that Fig. 1 provides for this utility model embodiment
Figure.
As it is shown in figure 1, this utility model embodiment provides the auxiliary device in a kind of intramedullary pin internal fixation operation, including:
Positioning and guiding substrate 1, guide pin positioning guide mechanism 2, positioning rod component 3；Positioning and guiding substrate 1 and guide pin positioning guide mechanism 2
Connected by positioning rod component 3；Positioning and guiding substrate 1 be placed in hip joint top and with the PFNA that will insert in femur
Position is the most corresponding, and positioning and guiding substrate 1 can be used in primarily determining that the implantation site of PFNA, the degree of depth and diameter；Guide pin is fixed
Position guiding mechanism 2 can be used in the most accurately determining the implantation site of PFNA and the degree of depth and the implantation site of screw blade
And the degree of depth；Positioning rod component 3 can be used in adjusting the placing direction of screw blade.
Relative to prior art, the auxiliary device in a kind of intramedullary pin internal fixation operation described in this utility model embodiment
Have the advantage that
In auxiliary device in a kind of intramedullary pin internal fixation operation that this utility model embodiment provides, as it is shown in figure 1, bag
Include: positioning and guiding substrate 1, guide pin positioning guide mechanism 2, positioning rod component 3；Positioning and guiding substrate 1 and guide pin positioning and guiding machine
Structure 2 is connected by positioning rod component 3；Positioning and guiding substrate 1 be placed in hip joint top and with the PFNA that will insert in femur
Position the most corresponding, positioning and guiding substrate 1 can be used in primarily determining that the implantation site of PFNA, the degree of depth and diameter；Guide pin
What positioning guide mechanism 2 can be used in the most accurately determining the implantation site of PFNA and the degree of depth and screw blade inserts position
Put and the degree of depth；Positioning rod component 3 can be used in adjusting the placing direction of screw blade.Thus analyzing and understand, this utility model is real
Execute the auxiliary device in a kind of intramedullary pin internal fixation operation that example provides, can be with positioning and guiding substrate 1 as scale after perspective
Primarily determine that the implantation site of PFNA, the degree of depth and diameter, effectively reduce the number of times of hands fluoroscopy during operation；Led by guide pin location
It is accurately positioned to mechanism 2, it is thus possible to further determine that the implantation site of PFNA and the degree of depth and the implantation site of screw blade
And the degree of depth；Adjust the placing direction of screw blade by adjusting the position of positioning rod component 3, thus realize screw blade pair
PFNA's is the most fixing.Therefore, the auxiliary device in a kind of intramedullary pin internal fixation operation that this utility model embodiment provides,
Implement operation consent i.e. can complete to position accordingly, accurately determine entering of PFNA and follow closely point, placing direction and the degree of depth and spiral
The placing direction of blade and the degree of depth, not only simplify operation process, provides for Wicresoft's Intertrochanteric
New departure, and ensure that operation reaches preferable effect, reduce the perspective number of times of X-ray in operation simultaneously.
Positioning and guiding in auxiliary device in a kind of intramedullary pin internal fixation operation that Fig. 2 provides for this utility model embodiment
The plan structure schematic diagram of substrate.
Wherein, in order to primarily determine that the implantation site of PFNA, the degree of depth and diameter, as depicted in figs. 1 and 2, positioning and guiding
Substrate 1 includes horizontal location plate 11, main nail substrate 12 and screw blade substrate 13；Wherein, the long axis of horizontal location plate 11 and
The long axis of the near-end of main nail substrate 12 overlaps, thus can be entered the position of nail point, spiral shell according to a preliminary estimate by the long axis overlapped
Rotation blade substrate 13 is for the position of setting screw blade.Horizontal location plate 11 is positioned at the upper surface of main nail substrate 12, and level is fixed
Position plate 11 closes on one end of main nail substrate 12 near-end and is provided with pointer 111, and pointer 111 is positioned at the long axis of horizontal location plate 11
On, for indicating the position into nail point；It is positioned at far-end on main nail substrate 12 and is provided with hole 121, location, can by hole 121, location
To pierce Kirschner wire with fixing main nail substrate；Screw blade substrate 13 plugs in the close end becoming owner of nail substrate 12.During use, will
Positioning and guiding substrate 1 is placed in the top of patient's hip joint, in the hip joint normotopia image under C-arm X-ray machine is had an X-rayed, and circular knife
Plate base 13 is positioned at below neck of femur at 1/3rd, and the distal portions of main nail substrate 12 is positioned at femur marrow lacuna central authorities, and
Positioning and guiding substrate 1 can play the effect of scale such that it is able to primarily determines that the implantation site of PFNA, the degree of depth and diameter.
It should be added that, the near-end of main nail substrate 12 refers to that main nail substrate 12 is near the side of patient's hip joint herein
To, the far-end of main nail substrate 12 refers to the main nail substrate 12 direction away from patient's hip joint.
Preferably, in order to the anchor point on patient body being marked when operation, as in figure 2 it is shown, main nail substrate 12
On be provided with the first void region 122；The second void region 131 it is provided with on screw blade substrate 13.Therefore, when main nail substrate
12 and screw blade substrate 13 complete location after, can be by the first void region 122 and circular knife on main nail substrate 12
The second void region 131 on plate base 13, makes marks on the skin of the patient with Gentian Violet respectively, in case positioning and guiding substrate
1 position again positions after moving and increases the x-ray exposed amount of patient.
In auxiliary device in a kind of intramedullary pin internal fixation operation that Fig. 3 provides for this utility model embodiment, side guides
The structural representation of handle.
Specifically, in order to determine the implantation site of screw blade, direction and the degree of depth, as shown in figures 1 and 3, guide pin location
Guiding mechanism 2 includes screw blade guide pin pilot sleeve 21, guides guide pin pilot sleeve 22, screw blade guide pin 23, guiding
Guide pin 24 and side caster assembly therefor 25；Screw blade guide pin pilot sleeve 21 and guiding guide pin pilot sleeve 22 parallel side-by-side
Connect, and screw blade guide pin pilot sleeve 21 is connected with positioning rod component 3；Screw blade guide pin 23 is fed through and is positioned at side and leads
To the axle center of the screw blade passage 251 of the distal portion of handle 25, guiding guide pin 24 is fed through and is positioned at side caster assembly therefor 25
The fluting 252 of distal portion；During use, screw blade guide pin 23 penetrates in screw blade guide pin pilot sleeve 21, guides guide pin 24
Penetrate in guiding guide pin pilot sleeve 22, side can be adjusted along screw blade guide pin 23 with the guiding plane that determines of guide pin 24 and lead
To handle 25, so that the near-end of side caster assembly therefor 25 is at the pointer 111 of horizontal location plate 11.And when performing the operation, along spiral shell
Rotation blade guide pin 23 can be squeezed into screw blade and lock PFNA with near-end after holing.Specifically, screw blade guide pin 23 is positioned at side
On side's caster assembly therefor 25 at the axle center of screw blade passage 251, guide guide pin 24 and be positioned at the fluting of side caster assembly therefor 25 far-end
In 252, the width of the diameter and far-end fluting 252 that guide guide pin 24 mates；Guide the degree of depth and the screw blade guide pin of guide pin 24
The degree of depth of 23 is as the criterion so that corresponding guide pin is fixing, (can also remove corresponding guide pin when expanding marrow) to not affecting expansion marrow.Therefore, logical
Cross screw blade guide pin 23 and guiding guide pin 24 can determine the implantation site of screw blade, direction and the degree of depth, simultaneously can also
Determine the plane at side caster assembly therefor 25 place.
It should be added that, side caster assembly therefor 25 far-end refers to close away from patient's hip on side caster assembly therefor 25 herein
The direction of joint, side caster assembly therefor 25 near-end refers to the direction on side caster assembly therefor 25 near patient's hip joint.
Further, for the ease of installing main nail guide pin and the PFNA of PFNA, as it is shown in figure 1, side caster assembly therefor 25
Near-end is provided with main nail connecting hole 26, connects and have soft tissue to protect sleeve 27 at main nail connecting hole 26.During operation, guide in side
Inserting soft tissue protection sleeve 27 at the main nail connecting hole 26 of handle 25 near-end, the internal diameter of soft tissue protection sleeve 27 is with PFNA's
The diameter of main nail guide pin is consistent, and the external diameter of soft tissue protection sleeve 27 is consistent with the internal diameter of main nail connecting hole 26 such that it is able to relatively
Connect the main nail guide pin of PFNA easily.The main nail implanting PFNA after soft tissue protection sleeve 27 is near end of thighbone opening is led
Pin, expands marrow along main nail guide pin, then inserts PFNA.
It should be added that, the near-end of side caster assembly therefor 25 refers on side caster assembly therefor 25 near patient's hip herein
The direction in joint.
Further, for the ease of adjusting the placing direction of screw blade, as it is shown in figure 1, positioning rod component 3 includes
First perpendicular positioning bar 31 and neck of femur lean forward and position bar 32；First perpendicular positioning bar 31 be fixedly arranged in the middle of disk 311, disk
311 be provided centrally with rotary shaft 312；First perpendicular positioning bar 31 and neck of femur lean forward location bar 32 can by rotary shaft 312
It is movably connected with；When specifically assembling, the first perpendicular positioning bar 31 can be fed through horizontal location plate 11 and consolidate with main nail substrate 12
Fixed.During use, lean forward location bar 32 adjusting neck of femur by rotating the first perpendicular positioning bar 31, make neck of femur lean forward location bar
32 with the axis co-planar of screw blade substrate 13 on positioning and guiding substrate 1, then by rotary shaft 312 adjust neck of femur lean forward fixed
Position bar 32, makes neck of femur lean forward the proximal part of location bar 32 axle with the neck of femur of patient during the image of perspective side position in operation
Line is parallel, thus can accurately determine the placing direction of screw blade.
It should be added that, the lean forward proximal part of location bar 32 of neck of femur refers to that neck of femur leans forward location bar herein
Lean forward on 32 the location bar 32 part near one end of patient's hip joint with the junction point of the first perpendicular positioning bar 31 to neck of femur.
Wherein, in order to ensure the fixing of positioning and guiding substrate 1, to be accurately positioned the position of PFNA, as it is shown in figure 1, location
Guiding substrate 1 and also include vertical sleeve 14, vertical sleeve 14 can be fed through horizontal location plate 11 and consolidate with main nail substrate 12
Fixed.During operation, 2mm Kirschner wire in vertical sleeve 14 (internal diameter 2mm) pierces the femur of patient, thus can play fixing main nail
The effect of substrate 12；After vertical sleeve 14 and the first perpendicular positioning bar 31 are fixed on horizontal location plate 11 and main nail substrate 12,
Can determine that the plane at horizontal location plate 11 place, the major axis of horizontal location plate 11 overlap with the major axis of main nail substrate 12 near-end,
Pointer 111 on horizontal location plate 11 is positioned on its major axis, if so that main nail connecting hole 26 court of side caster assembly therefor 25
To pointer 111, i.e. can determine that PFNA enters the position of nail point.
Specifically, in order to adjust the placing direction of screw blade, hang down as it is shown in figure 1, positioning rod component 3 also includes second
Straight location bar 33；Lean forward with neck of femur one end of location bar 32 of second perpendicular positioning bar 33 is connected by square nut, and second is vertical
The bottom of straight location bar 33 is connected by double-hole nut with screw blade guide pin pilot sleeve 21.After installing positioning rod component 3,
Make neck of femur lean forward location bar 32 be mutually perpendicular to and coplanar with the second perpendicular positioning bar 33, the second perpendicular positioning bar 33 and circular knife
Sheet guide pin pilot sleeve 21 is mutually perpendicular to and coplanar, screw blade guide pin pilot sleeve 21 and guiding guide pin pilot sleeve 22 place
Plane vertical with the second perpendicular positioning bar 33.By rotate the second perpendicular positioning bar 33 adjust square nut and double-hole nut it
Between distance, make screw blade guide pin pilot sleeve 21 point to the middle part of position, neck of femur side, to screw blade guide pin pilot sleeve
Penetrate screw blade guide pin 23 in 21, i.e. can determine that placing direction and the position of screw blade according to the position of screw blade guide pin 23
Put.
Further, in order to make the Profile Match of positioning and guiding substrate 1 and PFNA, as in figure 2 it is shown, main nail substrate 12 is near
Angle between end axis and far-end axis is 6 degree, the far-end axis of main nail substrate 12 and the axis of screw blade substrate 13 it
Between angle be 130 degree or 135 degree.
Further, in order to mate with the Kirschner wire of a diameter of 2mm, enable 2mm Kirschner wire by main nail substrate
12 fix, as in figure 2 it is shown, the diameter in the hole 121, location of main nail substrate 12 should be 2mm mutually.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail this utility model with reference to foregoing embodiments, those of ordinary skill in the art should
Understand: the technical scheme described in foregoing embodiments still can be modified by it, or to the most some or all of
Technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of type each embodiment technical scheme.
Claims (10)
1. the auxiliary device in an intramedullary pin internal fixation operation, it is characterised in that including: positioning and guiding substrate, guide pin position
Guiding mechanism, positioning rod component；Described positioning and guiding substrate and described guide pin positioning guide mechanism are by described positioning rod component
Connect；
Described positioning and guiding substrate is placed in the top of hip joint and the most corresponding with the position of the PFNA that will insert in femur,
Described positioning and guiding substrate can be used in primarily determining that the implantation site of described PFNA, the degree of depth and diameter；Described guide pin positions
Guiding mechanism can be used in the most accurately determining the implantation site of described PFNA and the degree of depth and the implantation site of screw blade
And the degree of depth；Described positioning rod component can be used in adjusting the placing direction of described screw blade.
Auxiliary device in a kind of intramedullary pin internal fixation operation the most according to claim 1, it is characterised in that described location
Guide substrate and include horizontal location plate, main nail substrate and screw blade substrate；
Described horizontal location plate is positioned at the upper surface of described main nail substrate, and described horizontal location plate closes on described main nail substrate near-end
One end be provided with pointer；It is positioned at far-end on described main nail substrate and is provided with hole, location；Described screw blade substrate plug into
In the close end of described main nail substrate.
Auxiliary device in a kind of intramedullary pin internal fixation operation the most according to claim 2, it is characterised in that described main nail
The first void region it is provided with on substrate；It is provided with the second void region on described screw blade substrate.
Auxiliary device in a kind of intramedullary pin internal fixation operation the most according to claim 2, it is characterised in that described guide pin
Positioning guide mechanism includes screw blade guide pin pilot sleeve, guiding guide pin pilot sleeve, screw blade guide pin, leads
Pin and side caster assembly therefor；
Described screw blade guide pin pilot sleeve is connected with described guiding guide pin pilot sleeve parallel side-by-side, and described screw blade
Guide pin pilot sleeve is connected with described positioning rod component；Described screw blade guide pin is fed through and is positioned at described side caster assembly therefor
The axle center of the screw blade passage of distal portion, described guiding guide pin is fed through the opening of distal portion being positioned at described side caster assembly therefor
Groove；
During use, described screw blade guide pin penetrates in described screw blade guide pin pilot sleeve, and described guiding guide pin penetrates institute
State in guiding guide pin pilot sleeve.
Auxiliary device in a kind of intramedullary pin internal fixation operation the most according to claim 4, it is characterised in that described side
The near-end of caster assembly therefor is provided with main nail connecting hole, and described main nail connection hole connects has soft tissue to protect sleeve.
Auxiliary device in a kind of intramedullary pin internal fixation operation the most according to claim 4, it is characterised in that described location
Bar assembly includes the first perpendicular positioning bar and neck of femur leans forward location bar；
Described first perpendicular positioning bar be fixedly arranged in the middle of disk, described disk be provided centrally with rotary shaft；Described first hangs down
Straight location bar is leaned forward with described neck of femur and positions bar and be movably connected by described rotary shaft.
Auxiliary device in a kind of intramedullary pin internal fixation operation the most according to claim 6, it is characterised in that described location
Guiding substrate also includes vertical sleeve, described vertical sleeve and described first perpendicular positioning bar and is fed through described level respectively calmly
Position plate is also fixed with described main nail substrate.
Auxiliary device in a kind of intramedullary pin internal fixation operation the most according to claim 6, it is characterised in that described location
Bar assembly also includes the second perpendicular positioning bar；Described second perpendicular positioning bar and described neck of femur lean forward and position one end of bar even
Connecing, the bottom of described second perpendicular positioning bar is connected with described screw blade guide pin pilot sleeve.
Auxiliary device in a kind of intramedullary pin internal fixation operation the most according to claim 2, it is characterised in that described main nail
Angle between near-end axis and the far-end axis of substrate is 6 degree, the far-end axis of described main nail substrate and described screw blade
Angle between the axis of substrate is 130 degree or 135 degree.
10. according to the auxiliary device in a kind of intramedullary pin internal fixation operation described in claim 2 or 9, it is characterised in that described
A diameter of 2mm in the hole, described location of main nail substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213402.4U CN205514872U (en) | 2016-03-18 | 2016-03-18 | Auxiliary device in operation of intramedullary nail internal fixation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213402.4U CN205514872U (en) | 2016-03-18 | 2016-03-18 | Auxiliary device in operation of intramedullary nail internal fixation |
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| Publication Number | Publication Date |
|---|---|
| CN205514872U true CN205514872U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620213402.4U Expired - Fee Related CN205514872U (en) | 2016-03-18 | 2016-03-18 | Auxiliary device in operation of intramedullary nail internal fixation |
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| Country | Link |
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| CN (1) | CN205514872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615979A (en) * | 2016-03-18 | 2016-06-01 | 高开拓 | Auxiliary device used in PFNA (proximal femoral nail anti-rotation) internal fixation surgery |
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2016
- 2016-03-18 CN CN201620213402.4U patent/CN205514872U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615979A (en) * | 2016-03-18 | 2016-06-01 | 高开拓 | Auxiliary device used in PFNA (proximal femoral nail anti-rotation) internal fixation surgery |
| CN105615979B (en) * | 2016-03-18 | 2018-01-02 | 高开拓 | A kind of servicing unit in intramedullary nail internal fixation operation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180318 |