CN105615979B - A kind of servicing unit in intramedullary nail internal fixation operation - Google Patents
A kind of servicing unit in intramedullary nail internal fixation operation Download PDFInfo
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- CN105615979B CN105615979B CN201610157916.7A CN201610157916A CN105615979B CN 105615979 B CN105615979 B CN 105615979B CN 201610157916 A CN201610157916 A CN 201610157916A CN 105615979 B CN105615979 B CN 105615979B
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- positioning
- guide pin
- substrate
- screw blade
- guiding
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation 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
- A61B17/72—Intramedullary pins, nails or other devices
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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
- A61B17/74—Devices for the head or neck or trochanter of the femur
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides 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 problem of present invention discloses the servicing unit in a kind of intramedullary nail internal fixation operation, is related to orthopaedics Minimally Invasive Surgery fixture technology field, enters to follow closely point location difficulty to PFNA to solve existing apparatus of inserting, and screw blade once can not be inserted accurately in neck of femur.Servicing unit in intramedullary nail internal fixation operation of the present invention, including：The positioning and guiding substrate and guide pin positioning guide mechanism connected by positioning rod component；Positioning and guiding substrate is placed in that the top of hip joint and the position of the PFNA with that will be inserted in femur are corresponding up and down, and positioning and guiding substrate can be used in primarily determining that PFNA implantation site, depth and diameter；Guide pin positioning guide mechanism can be used in the further accurate implantation site and depth for determining PFNA and screw blade；Positioning rod component can be used in adjusting the placing direction of screw blade.Present invention is mainly applied in the closed reduction PFNA internal fixation treatments of intertrochanter fracture of femur.
Description
Technical field
The present invention relates to orthopaedics Minimally Invasive Surgery fixture technology field, more particularly, in a kind of intramedullary nail internal fixation operation
Servicing unit.
Background technology
The incidence of disease of intertrochanter fracture of femur accounts for 3%~4% all to fracture, accounts for Hip Fracture of being grown up
35.7%.Aging population and osteoporosis are the main reason for intertrochanter fracture of femur incidence of disease are high.With aging population
Development, the treatment of intertrochanter fracture of femur faces huge challenge.
At present, Intramedullary nailing operation due to intramedullary nail bearing load it is uniform, mechanics is more reasonable, percutaneous manipulation, lose blood compared with
It is few, therefore be usually used in treating intertrochanter fracture of 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 small and meets biomethanics etc.
Advantage and be used more and more.Apparatus used in existing PFNA internal fixation operations is more scattered, generally includes：Guide pin, survey
To sight, drill bit, screw, C-arm X-ray machine；Wherein, guide pin is used to determine into nail point position, and lateral sight is used to insert
Screw blade is to fix PFNA, and drill bit is used for the passage for drilling out 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, makees 3-5cm stringer otch upwards by femoral greater trochanter top, passivity is separately outer
Diductor muscle and peripheral structure, patient's finger touches greater trochanter summit and is placed into guide pin into nail point to primarily determine that, by C-arm X-ray
Machine, fluoroscopic observation guide pin position and determine ideal and enter to follow closely a little；The main nails of PFNA of matching are inserted after expanding marrow along guide pin, while have an X-rayed tune
Whole PFNA is main to follow closely the depth and top rake inserted；One piece of positioning guide pin is pierced into neck of femur under the guiding of lateral sight, is made
Positioning guide pin be located at the central on the lower side of the neck of femur longitudinal axis, then fluoroscopic examination just, side position position position and the depth of guide pin, with corresponding
Drill bit drilled along guide pin, screw blade is squeezed into neck of femur along lateral sight, fluoroscopic observation determines the position of screw blade
Put.
However, present inventor has found, PFNA of the prior art inserts apparatus in interior ligamentopexis for PFNA's
Enter to follow closely point location difficulty, and can not ensure that PFNA, positioned at femoral bone cavitas medullaris center, causes screw blade to be located at stock on vector position
Partial in bone neck, thus more difficult disposably accurately insert screw blade；In addition, it is fixed to adjust C-arm X-ray machine perspective repeatedly
Position, can also increase open-assembly time and the operating time of doctors and patients' X ray, decline patient tolerance, cause the problems such as polluting of performing the operation.
The content of the invention
It is an object of the invention to provide the servicing unit in a kind of intramedullary nail internal fixation operation, to solve in the prior art
PFNA insert apparatus and enter to follow closely point location difficulty for PFNA in fixed operation inside, screw blade disposably can not accurately be put
The problem of entering in neck of femur.
The present invention provides the servicing unit in a kind of intramedullary nail internal fixation operation, including：Positioning and guiding substrate, guide pin positioning
Guiding mechanism, positioning rod component；The positioning and guiding substrate passes through the positioning rod component with the guide pin positioning guide mechanism
Connection；It is corresponding up and down that the positioning and guiding substrate is placed in the top of hip joint and the position of the PFNA with that will be inserted in femur,
The positioning and guiding substrate can be used in primarily determining that implantation site, depth and the diameter of the PFNA；The guide pin positioning
Guiding mechanism can be used in further accurately determining the implantation site and the implantation site of depth and screw blade of the PFNA
And depth；The positioning rod component can be used in adjusting the placing direction of the screw blade.
Wherein, the positioning and guiding substrate includes horizontal location plate, main nail substrate and screw blade substrate；It is described horizontal fixed
For position plate positioned at the upper surface of the main nail substrate, one end that the horizontal location plate closes on the main nail substrate near-end is provided with finger
Pin；Far-end is provided with positioning hole on the main nail substrate；The screw blade substrate is plugged into the main nail substrate
In close end.
Preferably, it is provided with the first void region on the main nail substrate；Second is provided with the screw blade substrate
Void region.
Specifically, the guide pin positioning guide mechanism includes screw blade guide pin pilot sleeve, is oriented to guide pin guide sleeve
Cylinder, screw blade guide pin, it is oriented to guide pin and side caster assembly therefor；The screw blade guide pin pilot sleeve and the guiding
Guide pin pilot sleeve parallel side-by-side is connected, and the screw blade guide pin pilot sleeve is connected with the positioning rod component；It is described
Screw blade guide pin is fed through the axle center of the screw blade passage of the distal portion positioned at the side caster assembly therefor, described to lead
Pin is fed through the fluting of the distal portion positioned at the side caster assembly therefor；In use, the screw blade guide pin penetrates the spiral shell
In rotary knife piece guide pin pilot sleeve, the guiding guide pin is penetrated in the guiding guide pin pilot sleeve.
Further, the near-end of the side caster assembly therefor is provided with main nail connecting hole, the main nail connection hole connection
There is soft tissue to protect sleeve.
Further, the positioning rod component includes the first perpendicular positioning bar and femur anticollis locating rod；It is described
First perpendicular positioning bar is fixedly arranged in the middle of disk, and the disk is provided centrally with rotary shaft；The first perpendicular positioning bar
It is movably connected with the femur anticollis locating rod by the rotary shaft.
Wherein, the positioning and guiding substrate also includes vertical sleeve, the vertical sleeve and first perpendicular positioning
Bar is fed through the horizontal location plate and fixed with the main nail substrate respectively.
Specifically, the positioning rod component also includes the second perpendicular positioning bar；The second perpendicular positioning bar with it is described
One end connection of femur anticollis locating rod, the bottom of the second perpendicular positioning bar and the screw blade guide pin pilot sleeve
Connection.
Further, the angle between the near-end axis and distal end axis of the main nail substrate is 6 degree, the main nail substrate
Distal end axis and the screw blade substrate axis between angle be 130 degree or 135 degree.
Further, a diameter of 2mm of the positioning hole of the main nail substrate.
Relative to prior art, the servicing unit in a kind of intramedullary nail internal fixation operation of the present invention has following excellent
Gesture：
In servicing unit in a kind of intramedullary nail internal fixation operation provided by the invention, including：Positioning and guiding substrate, guide pin
Positioning guide mechanism, positioning rod component；Positioning and guiding substrate is connected with guide pin positioning guide mechanism by positioning rod component；Positioning
Be oriented to substrate be placed in hip joint top and the PFNA with that will be inserted in femur position it is corresponding up and down, positioning and guiding substrate
It can be used in primarily determining that PFNA implantation site, depth and diameter；Guide pin positioning guide mechanism can be used in further standard
Determine PFNA implantation site and the implantation site and depth of depth and screw blade；Positioning rod component can be used in adjusting
The placing direction of whole screw blade.Thus analysis is understood, the auxiliary dress in a kind of intramedullary nail internal fixation operation provided by the invention
Put, PFNA implantation site, depth and diameter can be primarily determined that after perspective using positioning and guiding substrate as scale, effectively
Reduce the number of hand fluoroscopy during operation；It is accurately positioned by guide pin positioning guide mechanism, it is thus possible to further determine that putting for PFNA
Enter the implantation site and depth of position and depth and screw blade；Spiral is adjusted by adjusting the position of positioning rod component
The placing direction of blade, so as to realize accurate fixation of the screw blade to PFNA.Therefore, in a kind of intramedullary nail provided by the invention
Servicing unit in fixed operation, can complete to position accordingly implementing operation consent, accurately determine PFNA enter to follow closely point,
The placing direction and depth of placing direction and depth and screw blade, not only simplify surgical procedure, be controlled for minimally invasive interior fixation
Treat intertrochanter fracture of femur and provide new departure, and can ensure that operation reaches preferable effect, while reduce X in operation and penetrate
The perspective number of line.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the servicing unit in a kind of intramedullary nail internal fixation operation provided in an embodiment of the present invention；
Fig. 2 is positioning and guiding substrate in the servicing unit in a kind of intramedullary nail internal fixation operation provided in an embodiment of the present invention
Overlooking the structure diagram；
Fig. 3 is side caster assembly therefor in the servicing unit in a kind of intramedullary nail internal fixation operation provided in an embodiment of the present invention
Structural representation.
Reference：
1- positioning and guiding substrates；2- guide pin positioning guide mechanisms；
3- positioning rod components；11- horizontal location plates；
The main nail substrates of 12-；13- screw blade substrates；
111- pointers；121- positioning holes；
The void regions of 122- first；The void regions of 131- second；
21- screw blade guide pin pilot sleeves；
22- is oriented to guide pin pilot sleeve；23- screw blade guide pins；
24- is oriented to guide pin；25- sides caster assembly therefor；
251- screw blade passages；252- slots；
The main nail connecting holes of 26-；27- soft tissues protect sleeve；
31- the first perpendicular positioning bars；32- femur anticollis locating rods；
311- disks；312- rotary shafts；
14- vertical sleeves；33- the second perpendicular positioning bars.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1 is the structural representation of the servicing unit in a kind of intramedullary nail internal fixation operation provided in an embodiment of the present invention.
As shown in figure 1, the embodiment of the present invention provides the servicing unit in a kind of intramedullary nail internal fixation operation, including：Positioning
It is oriented to substrate 1, guide pin positioning guide mechanism 2, positioning rod component 3；Positioning and guiding substrate 1 passes through with guide pin positioning guide mechanism 2
Positioning rod component 3 connects；Positioning and guiding substrate 1 is placed in the top of hip joint and the position of the PFNA with that will be inserted in femur
Correspond to up and down, positioning and guiding substrate 1 can be used in primarily determining that PFNA implantation site, depth and diameter；Guide pin positioning is led
It can be used in the further accurate implantation site and the implantation site and depth of depth and screw blade for determining PFNA to mechanism 2
Degree；Positioning rod component 3 can be used in adjusting the placing direction of screw blade.
Relative to prior art, the servicing unit in a kind of intramedullary nail internal fixation operation described in the embodiment of the present invention has
Following advantage：
In servicing unit in a kind of intramedullary nail internal fixation operation provided in an embodiment of the present invention, as shown in figure 1, 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 is placed in the top of hip joint and the PFNA's with that will be inserted in femur
Position corresponds to up and down, and positioning and guiding substrate 1 can be used in primarily determining that PFNA implantation site, depth and diameter；Guide pin is determined
Position guiding mechanism 2 can be used in the further accurate implantation site and the implantation site of depth and screw blade for determining PFNA
And depth；Positioning rod component 3 can be used in adjusting the placing direction of screw blade.Thus analysis understands that the embodiment of the present invention carries
Servicing unit in a kind of intramedullary nail internal fixation operation supplied, after perspective with positioning and guiding substrate 1 can be scale and it is preliminary really
Determine PFNA implantation site, depth and diameter, effectively reduce the number of hand fluoroscopy during operation；Pass through guide pin positioning guide mechanism 2
It is accurately positioned, it is thus possible to further determine that PFNA implantation site and the implantation site and depth of depth and screw blade；
The placing direction of screw blade is adjusted by adjusting the position of positioning rod component 3, so as to realize standard of the screw blade to PFNA
It is really fixed.Therefore, the servicing unit in a kind of intramedullary nail internal fixation operation provided in an embodiment of the present invention, it is implementing operation consent
It can complete to position accordingly, accurately determine entering for PFNA and follow closely point, placing direction and the side of inserting of depth and screw blade
To and depth, not only simplify surgical procedure, new departure, Er Qieneng provided for minimally invasive Intertrochanteric
Enough ensure that operation reaches preferable effect, while reduce the perspective number of X ray in operation.
Fig. 2 is positioning and guiding substrate in the servicing unit in a kind of intramedullary nail internal fixation operation provided in an embodiment of the present invention
Overlooking the structure diagram.
Wherein, in order to primarily determine that PFNA implantation site, 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 overlap, so as to enter the position of nail point, spiral shell according to a preliminary estimate by the long axis of coincidence
Rotary knife plate base 13 is used for the position of setting screw blade.Horizontal location plate 11 is fixed positioned at the upper surface of main nail substrate 12, level
One end that position plate 11 closes on the main nail near-end of substrate 12 is provided with pointer 111, and pointer 111 is located at the long axis of horizontal location plate 11
On, for indicating the position into nail point；Far-end is provided with positioning hole 121 on main nail substrate 12, can by positioning hole 121
To pierce Kirschner wire with the main nail substrate of fixation；Screw blade substrate 13 is plugged in the close end for becoming owner of nail substrate 12.In 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 perspective, circular knife
Plate base 13 is located at 1/3rd below neck of femur, and the distal portions of main nail substrate 12 are located at femur marrow lacuna center, and
Positioning and guiding substrate 1 can play a part of scale, so as to primarily determine that PFNA implantation site, depth and diameter.
It should be added that, the near-end of main nail substrate 12 refers to main nail substrate 12 close to the side of patient's hip joint herein
To the distal end of main nail substrate 12 refers to main direction of the nail substrate 12 away from patient's hip joint.
Preferably, in order to which the anchor point on patient body is marked in operation, as shown in Fig. 2 main nail substrate 12
On be provided with the first void region 122；The second void region 131 is provided with screw blade substrate 13.Therefore, when main nail substrate
12 and screw blade substrate 13 complete positioning after, you can pass through it is main nail substrate 12 on the first void region 122 and circular knife
The second void region 131 on plate base 13, is made marks, to prevent positioning and guiding substrate on the skin of the patient with gentian violet respectively
Reposition after the movement of 1 position and increase the x-ray exposed amount of patient.
Fig. 3 is side caster assembly therefor in the servicing unit in a kind of intramedullary nail internal fixation operation provided in an embodiment of the present invention
Structural representation.
Specifically, in order to determine the implantation site of screw blade, direction and depth, as shown in figures 1 and 3, guide pin positioning
Guiding mechanism 2 includes screw blade guide pin pilot sleeve 21, is oriented to guide pin pilot sleeve 22, screw blade guide pin 23, is oriented to
Guide pin 24 and side caster assembly therefor 25；Screw blade guide pin pilot sleeve 21 is with being oriented to the parallel side-by-side of guide pin pilot sleeve 22
Connection, and screw blade guide pin pilot sleeve 21 is connected with positioning rod component 3；Screw blade guide pin 23 is fed through leads positioned at side
To the axle center of the screw blade passage 251 of the distal portion of handle 25, it is oriented to guide pin 24 and is fed through positioned at side caster assembly therefor 25
The fluting 252 of distal portion；In use, screw blade guide pin 23 is penetrated in screw blade guide pin pilot sleeve 21, guide pin 24 is oriented to
Penetrate and be oriented in guide pin pilot sleeve 22, the plane determined along screw blade guide pin 23 with guiding guide pin 24 can adjust side 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
Rotary knife piece guide pin 23 squeezes into screw blade and locks PFNA with near-end after can drilling.Specifically, screw blade guide pin 23 is located at side
On square caster assembly therefor 25 at the axle center of screw blade passage 251, the fluting that guide pin 24 is located at the distal end of side caster assembly therefor 25 is oriented to
In 252, the diameter for being oriented to guide pin 24 matches with the width of distal end fluting 252；It is oriented to the depth and screw blade guide pin of guide pin 24
23 depth is fixed by corresponding guide pin and is defined, and (corresponding guide pin can also be removed when expanding marrow) untill not influenceing to expand marrow.Therefore, lead to
Cross screw blade guide pin 23 and be oriented to implantation site, direction and depth that guide pin 24 can determine screw blade, while can also
Determine the plane where side caster assembly therefor 25.
It should be added that, the distal end of side caster assembly therefor 25 refers to closes on side caster assembly therefor 25 away from patient's hip herein
The direction of section, the near-end of side caster assembly therefor 25 refer on side caster assembly therefor 25 close to the direction of patient's hip joint.
Further, for the ease of installing PFNA main nail guide pin and PFNA, as shown in figure 1, side caster assembly therefor 25
Near-end is provided with main nail connecting hole 26, and soft tissue protection sleeve 27 is connected with main nail connecting hole 26.During operation, it is oriented in side
Soft tissue protection sleeve 27, the internal diameter and PFNA of soft tissue protection sleeve 27 are inserted at the main nail connecting hole 26 of the near-end of handle 25
It is main nail guide pin diameter it is consistent, soft tissue protection sleeve 27 external diameter with it is main follow closely connecting hole 26 internal diameter it is consistent, so as to compared with
Easily connect PFNA main nail guide pin.The main nail for being implanted into PFNA after near end of thighbone opening through soft tissue protection sleeve 27 is led
Pin, expand marrow along main nail guide pin, then insert PFNA.
It should be added that, the near-end of side caster assembly therefor 25 refers on side caster assembly therefor 25 close to patient's hip herein
The direction in joint.
Further, for the ease of adjusting the placing direction of screw blade, as shown in figure 1, positioning rod component 3 includes
First perpendicular positioning bar 31 and femur anticollis locating rod 32；First perpendicular positioning bar 31 is fixedly arranged in the middle of disk 311, disk
311 are provided centrally with rotary shaft 312；First perpendicular positioning bar 31 can by rotary shaft 312 with femur anticollis locating rod 32
It is movably connected with；During specific assembling, the first perpendicular positioning bar 31 can be fed through horizontal location plate 11 and consolidate with main nail substrate 12
It is fixed.In use, by rotating the first perpendicular positioning bar 31 to adjust femur anticollis locating rod 32, make femur anticollis locating rod
32 with positioning and guiding substrate 1 on screw blade substrate 13 axis co-planar, then by rotary shaft 312 adjust femur anticollis determine
Position bar 32, make the proximal part of femur anticollis locating rod 32 in operation during the image of perspective side position and the neck of femur of patient axle
Line is parallel, so as to can accurately determine the placing direction of screw blade.
It should be added that, the proximal part of femur anticollis locating rod 32 refers to femur anticollis locating rod herein
On 32 with the tie point of the first perpendicular positioning bar 31 to femur anticollis locating rod 32 close to the part of one end of patient's hip joint.
Wherein, in order to ensure the fixation of positioning and guiding substrate 1, to be accurately positioned PFNA position, as shown in figure 1, positioning
It is oriented to substrate 1 and also includes vertical sleeve 14, vertical sleeve 14 can be fed through horizontal location plate 11 and consolidate with main nail substrate 12
It is fixed.During operation, 2mm Kirschner wires can pierce in the femur of patient through vertical sleeve 14 (internal diameter 2mm), so as to play fixed main nail
The effect of substrate 12；After the perpendicular positioning bar 31 of vertical sleeve 14 and first is fixed on horizontal location plate 11 and main nail substrate 12,
The plane where horizontal location plate 11, the major axis of horizontal location plate 11 and the main long overlapping of axles for following closely the near-end of substrate 12 are can determine,
Pointer 111 on horizontal location plate 11 is located on its major axis, as long as so that the main court of nail connecting hole 26 of side caster assembly therefor 25
To pointer 111, that is, it can determine that PFNA enters the position of nail point.
Specifically, in order to adjust the placing direction of screw blade, hung down as shown in figure 1, positioning rod component 3 also includes second
Straight locating rod 33；Second perpendicular positioning bar 33 is connected with one end of femur anticollis locating rod 32 by square nut, and second hangs down
The bottom of straight locating rod 33 is connected with screw blade guide pin pilot sleeve 21 by double-hole nut.After installing positioning rod component 3,
Femur anticollis locating rod 32 is set to be mutually perpendicular to the second perpendicular positioning bar 33 and coplanar, the second perpendicular positioning bar 33 and circular knife
Piece guide pin pilot sleeve 21 is mutually perpendicular to and coplanar, screw blade guide pin pilot sleeve 21 and the place of guiding guide pin pilot sleeve 22
Plane it is 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 neck of femur side position middle part, to screw blade guide pin pilot sleeve
Screw blade guide pin 23 is penetrated in 21, is placing direction and the position that can determine that screw blade according to the position of screw blade guide pin 23
Put.
Further, in order that positioning and guiding substrate 1 and PFNA Profile Match, as shown in Fig. 2 main nail substrate 12 is near
It is 6 degree to hold the angle between axis and distal end axis, the distal 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 be matched with a diameter of 2mm Kirschner wire, 2mm Kirschner wires are enable by main nail substrate
12 fix, as shown in Fig. 2 the diameter of the positioning hole 121 of main nail substrate 12 also mutually should be 2mm.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (5)
- A kind of 1. servicing unit in intramedullary nail internal fixation operation, it is characterised in that including：Positioning and guiding substrate, guide pin positioning Guiding mechanism, positioning rod component；The positioning and guiding substrate passes through the positioning rod component with the guide pin positioning guide mechanism Connection；It is corresponding up and down that the positioning and guiding substrate is placed in the top of hip joint and the position of the PFNA with that will be inserted in femur, The positioning and guiding substrate can be used in primarily determining that implantation site, depth and the diameter of the PFNA；The guide pin positioning Guiding mechanism can be used in further accurately determining the implantation site and the implantation site of depth and screw blade of the PFNA And depth；The positioning rod component can be used in adjusting the placing direction of the screw blade；The positioning and guiding substrate includes horizontal location plate, main nail substrate and screw blade substrate；The horizontal location plate is located at The upper surface of the main nail substrate, one end that the horizontal location plate closes on the main nail substrate near-end are provided with pointer；It is described Far-end is provided with positioning hole on main nail substrate；The screw blade substrate plugs the close end into the main nail substrate In；The guide pin positioning guide mechanism includes screw blade guide pin pilot sleeve, is oriented to guide pin pilot sleeve, screw blade Guide pin, it is oriented to guide pin and side caster assembly therefor；The screw blade guide pin pilot sleeve and the guiding guide pin pilot sleeve Parallel side-by-side is connected, and the screw blade guide pin pilot sleeve is connected with the positioning rod component；The screw blade guide pin The axle center of the screw blade passage of the distal portion positioned at the side caster assembly therefor is fed through, the guiding guide pin, which is fed through, to be located at The fluting of the distal portion of the side caster assembly therefor；Led in use, the screw blade guide pin penetrates the screw blade guide pin Into sleeve, the guiding guide pin is penetrated in the guiding guide pin pilot sleeve；The near-end of the side caster assembly therefor is provided with main nail connecting hole, and the main nail connection hole is connected with soft tissue protective case Cylinder；The positioning rod component includes the first perpendicular positioning bar and femur anticollis locating rod；The first perpendicular positioning bar Disk is fixedly arranged in the middle of, the disk is provided centrally with rotary shaft；The first perpendicular positioning bar and the femur anticollis Locating rod is movably connected by the rotary shaft；The positioning rod component also includes the second perpendicular positioning bar；The second perpendicular positioning bar is determined with the femur anticollis One end connection of position bar, the bottom of the second perpendicular positioning bar is connected with the screw blade guide pin pilot sleeve.
- 2. the servicing unit in a kind of intramedullary nail internal fixation operation according to claim 1, it is characterised in that the main nail The first void region is provided with substrate；The second void region is provided with the screw blade substrate.
- 3. the servicing unit in a kind of intramedullary nail internal fixation operation according to claim 1, it is characterised in that the positioning It is oriented to substrate and also includes vertical sleeve, the vertical sleeve and the first perpendicular positioning bar is fed through described horizontal fixed respectively Position plate is simultaneously fixed with the main nail substrate.
- 4. the servicing unit in a kind of intramedullary nail internal fixation operation according to claim 1, it is characterised in that the main nail Angle between the near-end axis and distal end axis of substrate is 6 degree, the distal end axis and the screw blade of the main nail substrate Angle between the axis of substrate is 130 degree or 135 degree.
- 5. the servicing unit in a kind of intramedullary nail internal fixation operation according to claim 1 or 4, it is characterised in that described A diameter of 2mm of the positioning hole of main nail substrate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157916.7A CN105615979B (en) | 2016-03-18 | 2016-03-18 | A kind of servicing unit in intramedullary nail internal fixation operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157916.7A CN105615979B (en) | 2016-03-18 | 2016-03-18 | A kind of servicing unit in intramedullary nail internal fixation operation |
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| Publication Number | Publication Date |
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| CN105615979A CN105615979A (en) | 2016-06-01 |
| CN105615979B true CN105615979B (en) | 2018-01-02 |
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| CN201610157916.7A Active CN105615979B (en) | 2016-03-18 | 2016-03-18 | A kind of servicing unit in intramedullary nail internal fixation operation |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725820B (en) * | 2017-01-11 | 2023-05-16 | 邓迎生 | Femoral neck front torsion angle reference system-fixed point offset guide needle aiming hollow nail fixing system |
| CN107669328B (en) * | 2017-11-20 | 2024-03-26 | 陈聚伍 | Two-point multidimensional positioning device for femoral intramedullary nail |
| US11737796B2 (en) | 2018-04-04 | 2023-08-29 | Tst Rakor Ve Tibbi Aletler Sanayi Ve Ticaret Limited Şirketi | Proximal femoral de-rotation nail |
| CN111000615B (en) * | 2019-12-05 | 2022-12-30 | 张希江 | Intramedullary nail positioning drill jig frame |
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| CN1657014A (en) * | 2005-03-19 | 2005-08-24 | 戴维享 | Location-guiding apparatus for arranging internal guide meedle in femur neck |
| CN202060860U (en) * | 2011-04-20 | 2011-12-07 | 马台 | Navigator of intramedullary nail at near end of thighbone |
| WO2013180191A1 (en) * | 2012-05-31 | 2013-12-05 | サンエー精工株式会社 | Centering guide for surgical tool for treatment of bone fractures and surgical tool for treatment of bone fractures comprising said guide |
| US20140214045A1 (en) * | 2013-01-30 | 2014-07-31 | Synthes Usa, Llc | Aiming instrument |
| CN204484277U (en) * | 2015-03-02 | 2015-07-22 | 刘应忠 | Neck of femur localizer |
| CN205514872U (en) * | 2016-03-18 | 2016-08-31 | 高开拓 | Auxiliary device in operation of intramedullary nail internal fixation |
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- 2016-03-18 CN CN201610157916.7A patent/CN105615979B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657014A (en) * | 2005-03-19 | 2005-08-24 | 戴维享 | Location-guiding apparatus for arranging internal guide meedle in femur neck |
| CN202060860U (en) * | 2011-04-20 | 2011-12-07 | 马台 | Navigator of intramedullary nail at near end of thighbone |
| WO2013180191A1 (en) * | 2012-05-31 | 2013-12-05 | サンエー精工株式会社 | Centering guide for surgical tool for treatment of bone fractures and surgical tool for treatment of bone fractures comprising said guide |
| US20140214045A1 (en) * | 2013-01-30 | 2014-07-31 | Synthes Usa, Llc | Aiming instrument |
| CN204484277U (en) * | 2015-03-02 | 2015-07-22 | 刘应忠 | Neck of femur localizer |
| CN205514872U (en) * | 2016-03-18 | 2016-08-31 | 高开拓 | Auxiliary device in operation of intramedullary nail internal fixation |
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| CN105615979A (en) | 2016-06-01 |
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