CN108451631A - A kind of neck of femur hollow screw guide pin positioning device and application method - Google Patents
A kind of neck of femur hollow screw guide pin positioning device and application method Download PDFInfo
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- CN108451631A CN108451631A CN201810150787.8A CN201810150787A CN108451631A CN 108451631 A CN108451631 A CN 108451631A CN 201810150787 A CN201810150787 A CN 201810150787A CN 108451631 A CN108451631 A CN 108451631A
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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
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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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
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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
- A61B17/90—Guides therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
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Abstract
The invention discloses a kind of neck of femur hollow screw guide pin positioning device and application methods, the device includes pedestal and the standpipe that is vertically fixed on pedestal, it is threaded with the first lock-screw on the upper end outer wall of standpipe, one end of U-tube is inserted into standpipe upper end and is locked by the first lock-screw, it is threaded with the second lock-screw on the other end outer wall of U-tube, the upper end of central shaft rod is inserted into U-tube and is locked by the second lock-screw, it is fixedly connected with the first cuboid fixed block in central shaft rod lower end, it is fixedly connected with vertical panel in the bottom center of the first cuboid fixed block.The present invention can realize the external positioning of neck of femur central axes by positioning device, guide pin is disposably just penetrated to by needle guiding device the ideal position of femur again after the completion of positioning, to realize being accurately positioned for guide pin, it avoids penetrating guide pin repeatedly, procedure efficiency is improved, corrective surgery wound and intraoperative blood loss are substantially reduced and reduces the risk of postoperative infection.
Description
Technical field
The present invention relates to a kind of neck of femur hollow screw guide pin positioning devices, belong to the field of medical instrument technology.
Background technology
Hip Fracture incidence continues to increase, according to statistics, to the year two thousand fifty, in the crowd of 45 years old or greater age, hip
The number of the infected of fracture every year on average is between 458000~1037000.Most of patient is the elderly, but the hair of young crowd
Sick rate is also increasing, and main cause is attributed to young patient and takes place frequently with larger activity or motor vehicle accident.With displacement
Fracture of neck of femur, such as be gerontal patient, best therapeutic modality be total hip replacement or hemiarthroplasty.Young trouble
For the common therapy of person to fix fracture sites using three pieces of hollow screws after the reduction of the fracture, hollow screw treats femoral neck bone
Folding has following main points on surgical technic：
1, fracture site obtains good reset, and most of patient can be drawn suffering limb by traction table and obtain good reset；
2, the spatial position of three pieces of hollow screws should be in inverted triangle configuration on the section perpendicular to neck of femur central axes.Tool
Body is distributed：First needle --- inserting needle direction is through femur square, interior 1/3 in being on neck of femur P-A Cephalomatrics, in neck of femur side position
On piece is to the rear；Second needle --- inserting needle direction is through bone trabecula infall, 1/3 in being on neck of femur P-A Cephalomatrics, in femur
It is placed in the middle on neck lateral projection；Third root needle --- inserting needle direction is that China and foreign countries 1/3 are on neck of femur P-A Cephalomatrics through tension bone trabecula,
It is to the front on neck of femur lateral projection；
3, screw length should be suitable, can not wear out articular surface, this step can hold suitable inserting needle by X-ray examination in art
Depth.Quoted from《Campbell's bone surgery》, volume 6.
After guide pin penetrates target location, hollow screw is inserted in guide pin, screw is screwed in into neck of femur along guide pin, then
Guide pin is exited again.At this point, screw just penetrates into target location, operation also just succeeds, and will obtain as shown in attached drawing 4 and Fig. 5
Screw distribution.In this process, it is the difficult point of the operation and the step of most critical guide pin to be penetrated neck of femur target location
Suddenly.It is difficult that will disposably lead in art however, being covered due to the special anatomical features of neck of femur, and by soft tissue thick around
Needle penetrates suitable position.Most of surgeon is by rule of thumb " blind to wear ", then to pass through X in art when perforating needle
Line piece perspective judges whether position of the guide pin in neck of femur be suitable, if guide pin position is dissatisfied, needs to exit guide pin
It penetrating again afterwards, or even multiple thread a needle cannot obtain satisfaction, this not only gives patient to increase wound, but also increases operating time,
Increase patient and the exposure of doctor's radioactive ray.If patient lacks experience or does not have an X-rayed in time, or even guide pin is pierced by target area
Domain penetrates the blood vessel or nerve of surrounding, causes serious postoperative complication.
Neck of femur is cylinder-like structure, is the bridge for connecting femoral head and femoral shaft, there is two between neck of femur and femoral shaft
A important structure：
1, collodiaphyseal angle：The angle formed between neck of femur and femoral shaft, normal value are 110 °~140 °；
2, top rake：When lower limb neutral position, the angle that neck of femur is formed with femoral shaft on Coronal, 15 ° of left sides of average out to
It is right.
Inserting needle anisotropy is the main reason for causing fracture of neck of femur hollow screw to fix early stage failure：If guide pin with
Femoral shaft angle is too big, easily passes through cortex on the inside of neck of femur；Angle is too small, and hollow nail is easily made to pass through neck of femur lateral cortex；And
Guide pin point excessively backwards, easily passes through cortex on rear side of neck of femur；Guide pin point is excessively facing forward, easily passes through front side cortex.Therefore, guide pin
Position must well adapt to the collodiaphyseal angle and top rake of neck of femur, just the operation can be made to succeed.
Invention content
In view of the above technical problems, it is hollow to provide a kind of neck of femur simple in structure, easy to operate, registration by the present invention
Screw guide pin positioning device and application method are kept away so as to ensure that guide pin is disposably just penetrated to the ideal position of neck of femur
Exempt to penetrate guide pin repeatedly, improve procedure efficiency, substantially reduce corrective surgery wound and intraoperative blood loss and reduces postoperative infection
Risk.
Technical scheme of the present invention：A kind of neck of femur hollow screw guide pin positioning device, including pedestal and vertical fixation
Standpipe on pedestal, is threaded with the first lock-screw on the upper end outer wall of standpipe, and one end of U-tube is inserted on standpipe
It is locked in end and by the first lock-screw, the second lock-screw, axis is threaded on the other end outer wall of U-tube
The upper end of bar is inserted into U-tube and is locked by the second lock-screw, and it is rectangular to be fixedly connected with first in central shaft rod lower end
Body fixed block is fixedly connected with vertical panel, on the first cuboid fixed block in the bottom center of the first cuboid fixed block
Horizontal concrete chute is offered close to one end of standpipe, third lock-screw is threaded on the side wall of horizontal concrete chute, first slides
One end of movable plate is inserted into horizontal concrete chute and is locked by third lock-screw, fixes and connects in the other end of the first sliding panel
It is connected to the second cuboid fixed block, offers vertical chute on the second cuboid fixed block, the spiral shell on the side wall of vertical chute
Line is connected with the 4th lock-screw, and the upper end of the second sliding panel is inserted into vertical chute and is locked by the 4th lock-screw solid
It is fixed, it is fixedly connected with curved panel in the lower end of the second sliding panel, left arc is offered respectively in the left and right sides of curved panel
Sliding slot and right arc chute, slidably connect a slide bar in left arc chute and right arc chute, and the one of two slide bars
End is connected to the both ends of guide pin sleeve, and sliding lock is respectively connected in the other end of two slide bars.
Further, the center of circle corresponding to the left arc chute and right arc chute is the same center of circle.
Further, the central axes of the vertical panel and guide pin sleeve in the same plane, and the plane pass through central shaft rod
Axial line and and horizontal plane.
Further, it is both provided with graduation mark on the outside of the left arc chute and right arc chute.
Further, it is both provided with graduation mark on first sliding panel and the second sliding panel.
Meanwhile the present invention also provides a kind of application method for above-mentioned neck of femur hollow screw guide pin positioning device, packets
Include following steps：
(1) preoperative that patient is placed on traction table, after traction reduction fracture site, the suffering limb of patient is placed in level
15 ° of position and inward turning, make neck of femur central axes be in horizontal plane；
(2) after patient sets position, a Kirschner wire is put in front of neck of femur, then uses X-ray examination P-A Cephalomatrics in art,
Adjust Kirschner wire, make Kirschner wire be projected in be on neck of femur P-A Cephalomatrics in 1/3, at this time use marker pen along this Kirschner wire
Draw the first mark line, and across the first mark line and have perpendicular to the face of horizontal plane and only there are one, be labeled as α planes；
(3) one piece of Kirschner wire is put in lateral side of femur, then uses X-ray examination neck of femur side position in art, adjusts Kirschner wire position
It sets, so that outside Kirschner wire projection is parallel to neck of femur long axis, and to the rear on neck of femur lateral projection, then with marker pen along this gram
Family name's needle draws the second mark line, and have across the second mark line and the face parallel with horizontal plane and only there are one, be labeled as β plane；
(4) α planes and β plane are two orthogonal planes, and intersecting lens is the destination channel of first guide pin,
Because only that the intersection in the two faces could be on P-A Cephalomatrics with the first label line overlap, while it again can be on lateral projection with second
Mark line overlap；According to the method for step (2) and step (3), the Kirschner wire of P-A Cephalomatrics and lateral projection is set, its projection is made to be in
Above-mentioned target location simultaneously marks, and can obtain the destination channel of second guide pin and third guide pin；
(6) after obtaining first guide pin in the mark line of normotopia and side position, the pedestal 1 of guide pin positioning device is put in and is led
Draw by bed, the height of vertical panel 8 is adjusted by the first lock-screw 3 and the second lock-screw 5, and make vertical panel 8 in
Shaft 6 rotates, and makes bottom edge and the first label line overlap of vertical panel 8, then locks the first lock-screw 3 and the second locking screw
Nail 5, vertical panel 8 and α planes are same plane at this time；
(6) adjustment guide pin sleeve 17, makes the central axes of guide pin sleeve 17 intersect with the second mark line, at this time guide pin sleeve 17
Central axes be in β plane, according to the advance design of the device, the central axes of guide pin sleeve 17 are also in α planes, according to
Two orthogonal planes have and the mathematical principle of only one intersection, and the central axes of guide pin sleeve 17 at this time are α flat
The intersection in face and β plane, the destination channel of as first guide pin, the guide pin penetrated at this time along guide pin sleeve 17 necessarily penetrate
Target location in neck of femur；
(7) second and third root guide pin destination channel is obtained after the label of body surface positive side position, according to step (5) and step (6)
The method of description can complete the operation of threading a needle of second guide pin and third guide pin.
In the above method, when threading a needle, when outside cortex of bone is touched at guide pin tip, arcwall face is translated in the horizontal direction
Plate keeps the outer ledge of curved panel concordant with the mark line on guide pin.The purpose of this step is that guide pin tip is made to become outside
The distance in the center of circle of circular arc, guide pin point to guide pin mark line is just the radius of outer arc, in this way when need adjust guide pin into
When needle angle, it can be ensured that be to adjust needle angle using guide pin tip as the center of circle.
Due to the adoption of the above technical scheme, the advantage of the invention is that：The present invention can be realized by positioning device in body
Outer orientation direction guide pin disposable wearing enters the target location in neck of femur, to avoid penetrating guide pin repeatedly, improves procedure efficiency,
Substantially reduce corrective surgery wound and intraoperative blood loss amount.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of curved panel and guide pin sleeve；
Fig. 3 is the structural schematic diagram when present invention is implemented；
Fig. 4 is schematic diagram when screw screws in neck of femur target location；
Fig. 5 is the sectional view of Fig. 4.
Reference sign：1- pedestals, 2- standpipes, the first lock-screws of 3-, 4-U type pipes, the second lock-screws of 5-, in 6-
Shaft, 7- the first cuboid fixed blocks, 8- vertical panels, 9- horizontal concrete chutes, the second sliding panels of 10-, the second cuboids of 11- are fixed
Block, the 4th lock-screws of 12-, the first sliding panels of 13-, the right arc chutes of 14-, the left arc chutes of 15-, 16- curved panels, 17-
Guide pin sleeve, 18- third lock-screws, 19- vertical chutes, 20- slide bars, 21- sliding locks.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and examples to this hair
It is bright to be described in further detail.
The embodiment of the present invention：The structural schematic diagram of neck of femur hollow screw guide pin positioning device is as shown in Figures 1 and 2,
Including pedestal 1 and the standpipe being vertically fixed on pedestal 12, the first locking screw is threaded on the upper end outer wall of standpipe 2
One end of nail 3, U-tube 4 is inserted into 2 upper end of standpipe and is locked by the first lock-screw 3, the other end outer wall of U-tube 4
On be threaded with the second lock-screw 5, the upper end of central shaft rod 6 is inserted into U-tube 4 and is locked by the second lock-screw 5 solid
It is fixed, it is fixedly connected with the first cuboid fixed block 7 in 6 lower end of central shaft rod, is fixed in the bottom center of the first cuboid fixed block 7
It is connected with vertical panel 8, horizontal concrete chute 9 is offered close to one end of standpipe 2 on the first cuboid fixed block 7, it is sliding in level
It is threaded with third lock-screw 18 on the side wall of slot 9, one end of the first sliding panel 13 is inserted into horizontal concrete chute 9 and by the
Three lock-screws 18 are locked, and the second cuboid fixed block 11 is fixedly connected in the other end of the first sliding panel 13,
Vertical chute 19 is offered on two cuboid fixed blocks 11, the 4th lock-screw is threaded on the side wall of vertical chute 19
12, the upper end of the second sliding panel 10 is inserted into vertical chute 19 and is locked by the 4th lock-screw 12, in the second sliding
The lower end of plate 10 is fixedly connected with curved panel 16, and 15 He of left arc chute is offered respectively in the left and right sides of curved panel 16
Right arc chute 14 slidably connects a slide bar 20, two slide bars 20 in left arc chute 15 and right arc chute 14
One end be connected to the both ends of guide pin sleeve 17, be respectively connected with sliding lock 21 in the other end of two slide bars 20.
Further, the center of circle corresponding to the left arc chute 15 and right arc chute 14 is the same center of circle.
Further, the central axes of the vertical panel 8 and guide pin sleeve 17 in the same plane, and the plane pass through axis
The axial line of bar 6 and and horizontal plane.
Further, the outside of the left arc chute 15 and right arc chute 14 is both provided with graduation mark.
Further, it is both provided with graduation mark on first sliding panel, 13 and second sliding panel 10.
Referring to Fig. 3, the application method of above-mentioned neck of femur hollow screw guide pin positioning device includes the following steps：
(1) preoperative that patient is placed on traction table, after traction reduction fracture site, the suffering limb of patient is placed in level
15 ° of position and inward turning, make neck of femur central axes be in horizontal plane；
(2) after patient sets position, a Kirschner wire is put in front of neck of femur, then uses X-ray examination P-A Cephalomatrics in art,
Adjust Kirschner wire, make Kirschner wire be projected in be on neck of femur P-A Cephalomatrics in 1/3, at this time use marker pen along this Kirschner wire
Draw the first mark line, and across the first mark line and have perpendicular to the face of horizontal plane and only there are one, be labeled as α planes；
(3) one piece of Kirschner wire is put in lateral side of femur, then uses X-ray examination neck of femur side position in art, adjusts Kirschner wire position
It sets, so that outside Kirschner wire projection is parallel to neck of femur long axis, and to the rear on neck of femur lateral projection, then with marker pen along this gram
Family name's needle draws the second mark line, and have across the second mark line and the face parallel with horizontal plane and only there are one, be labeled as β plane；
(4) α planes and β plane are two orthogonal planes, and intersecting lens is the destination channel of first guide pin,
Because only that the intersection in the two faces could be on P-A Cephalomatrics with the first label line overlap, while it again can be on lateral projection with second
Mark line overlap；According to the method for step (2) and step (3), the Kirschner wire of P-A Cephalomatrics and lateral projection is set, its projection is made to be in
Above-mentioned target location simultaneously marks, and can obtain the destination channel of second guide pin and third guide pin；
(6) after obtaining first guide pin in the mark line of normotopia and side position, the pedestal 1 of guide pin positioning device is put in and is led
Draw by bed, the height of vertical panel 8 is adjusted by the first lock-screw 3 and the second lock-screw 5, and make vertical panel 8 in
Shaft 6 rotates, and makes bottom edge and the first label line overlap of vertical panel 8, then locks the first lock-screw 3 and the second locking screw
Nail 5, vertical panel 8 and α planes are same plane at this time；
(6) adjustment guide pin sleeve 17, makes the central axes of guide pin sleeve 17 intersect with the second mark line, at this time guide pin sleeve 17
Central axes be in β plane, according to the advance design of the device, the central axes of guide pin sleeve 17 are also in α planes, according to
Two orthogonal planes have and the mathematical principle of only one intersection, and the central axes of guide pin sleeve 17 at this time are α flat
The intersection in face and β plane, the destination channel of as first guide pin, the guide pin penetrated at this time along guide pin sleeve 17 necessarily penetrate
Target location in neck of femur；
(7) second and third root guide pin destination channel is obtained after the label of body surface positive side position, according to step (5) and step (6)
The method of description can complete the operation of threading a needle of second guide pin and third guide pin.
In the above method, when threading a needle, when outside cortex of bone is touched at guide pin tip, curved panel is translated in the horizontal direction
16, keep the outer ledge of curved panel 16 concordant with the mark line on guide pin.The purpose of this step is that guide pin tip is made to become outer
The distance in the center of circle of side circular arc, guide pin point to guide pin mark line is just the radius of outer arc, in this way when need adjust guide pin
When needle angle, it can be ensured that be to adjust needle angle using guide pin tip as the center of circle.
Claims (7)
1. a kind of neck of femur hollow screw guide pin positioning device, including pedestal (1) and the standpipe that is vertically fixed on pedestal (1)
(2), it is characterised in that：The first lock-screw (3), one end of U-tube (4) are threaded on the upper end outer wall of standpipe (2)
It is inserted into standpipe (2) upper end and is locked by the first lock-screw (3), is threadedly coupled on the other end outer wall of U-tube (4)
There are the second lock-screw (5), the upper end of central shaft rod (6) to be inserted into U-tube (4) and be locked by the second lock-screw (5),
It is fixedly connected with the first cuboid fixed block (7) in central shaft rod (6) lower end, in the bottom center of the first cuboid fixed block (7)
It is fixedly connected with vertical panel (8), one end close to standpipe (2) on the first cuboid fixed block (7) offers horizontal concrete chute
(9), third lock-screw (18) is threaded on the side wall of horizontal concrete chute (9), one end of the first sliding panel (13) is inserted into
It is locked in horizontal concrete chute (9) and by third lock-screw (18), is fixedly connected in the other end of the first sliding panel (13)
There is the second cuboid fixed block (11), vertical chute (19) is offered on the second cuboid fixed block (11), in vertical chute
(19) the 4th lock-screw (12) is threaded on side wall, the upper end of the second sliding panel (10) is inserted into vertical chute (19)
And be locked by the 4th lock-screw (12), it is fixedly connected with curved panel (16) in the lower end of the second sliding panel (10),
Left arc chute (15) and right arc chute (14) are offered respectively in the left and right sides of curved panel (16), in left arc chute
(15) and in right arc chute (14) slide bar (20) is slidably connected, one end of two slide bars (20), which is connected to, leads
The both ends of needle sleeve (17) are respectively connected with sliding lock (21) in the other end of two slide bars (20).
2. neck of femur hollow screw guide pin positioning device according to claim 1, it is characterised in that：The left arc chute
(15) center of circle and corresponding to right arc chute (14) is the same center of circle.
3. neck of femur hollow screw guide pin positioning device according to claim 1, it is characterised in that：The vertical panel
(8) and the central axes of guide pin sleeve (17) in the same plane, and axial line of the plane Jing Guo central shaft rod (6) and and horizontal plane
Vertically.
4. neck of femur hollow screw guide pin positioning device according to claim 1, it is characterised in that：The left arc chute
(15) and on the outside of right arc chute (14) it is both provided with graduation mark.
5. neck of femur hollow screw guide pin positioning device according to claim 1, it is characterised in that：First sliding panel
(13) and on the second sliding panel (10) it is both provided with graduation mark.
6. a kind of application method for the neck of femur hollow screw guide pin positioning device described in Claims 1 to 5 any one,
Characterized by the following steps：
(1) preoperative that patient is placed on traction table, after traction reduction fracture site, the suffering limb of patient is placed in horizontal position simultaneously
15 ° of inward turning makes neck of femur central axes be in horizontal plane；
(2) after patient sets position, a Kirschner wire is put in front of neck of femur, then uses X-ray examination P-A Cephalomatrics in art, is adjusted
Kirschner wire, make Kirschner wire be projected in be on neck of femur P-A Cephalomatrics in 1/3, use marker pen to draw the along this Kirschner wire at this time
One mark line, and across the first mark line and have perpendicular to the face of horizontal plane and only there are one, be labeled as α planes；
(3) one piece of Kirschner wire is put in lateral side of femur, then uses X-ray examination neck of femur side position in art, adjusts kirschner pin position, make
Outside Kirschner wire projection is parallel to neck of femur long axis, and to the rear on neck of femur lateral projection, then with marker pen along this Kirschner wire
Draw the second mark line, and have across the second mark line and the face parallel with horizontal plane and only there are one, be labeled as β plane；
(4) α planes and β plane are two orthogonal planes, and intersecting lens is the destination channel of first guide pin, because
Only the intersection in the two faces could mark line overlap on P-A Cephalomatrics with first, while can be marked again with second on lateral projection
Line overlap；According to the method for step (2) and step (3), the Kirschner wire of P-A Cephalomatrics and lateral projection is set, makes its projection in above-mentioned
Target location simultaneously marks, and can obtain the destination channel of second guide pin and third guide pin；
(6) after obtaining first guide pin in the mark line of normotopia and side position, the pedestal of guide pin positioning device is put in traction table
Side adjusts the height of vertical panel by the first lock-screw and the second lock-screw, and vertical panel is made to be rotated around central shaft rod,
Bottom edge and the first label line overlap for making vertical panel, then lock the first lock-screw and the second lock-screw, at this time vertically
Panel is same plane with α planes；
(6) guide pin sleeve is adjusted, so that the central axes of guide pin sleeve is intersected with the second mark line, at this time at the central axes of guide pin sleeve
In in β plane, according to the advance design of the device, the central axes of guide pin sleeve are also in α planes, are mutually perpendicular to according to two
Plane have and the mathematical principle of only one intersection, the central axes of guide pin sleeve at this time are the friendships of α planes and β plane
Line, the destination channel of as first guide pin, the guide pin penetrated at this time along guide pin sleeve necessarily penetrate the target in neck of femur
Position；
(7) second and third root guide pin destination channel is obtained after the label of body surface positive side position, is described according to step (5) and step (6)
Method can complete the operation of threading a needle of second guide pin and third guide pin.
7. the application method of neck of femur hollow screw guide pin positioning device according to claim 6, it is characterised in that：It threads a needle
When, when outside cortex of bone is touched at guide pin tip, translate curved panel in the horizontal direction, make the outer ledge of curved panel with
Mark line on guide pin is concordant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150787.8A CN108451631A (en) | 2018-02-13 | 2018-02-13 | A kind of neck of femur hollow screw guide pin positioning device and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150787.8A CN108451631A (en) | 2018-02-13 | 2018-02-13 | A kind of neck of femur hollow screw guide pin positioning device and application method |
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| CN108451631A true CN108451631A (en) | 2018-08-28 |
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|---|---|---|---|
| CN201810150787.8A Pending CN108451631A (en) | 2018-02-13 | 2018-02-13 | A kind of neck of femur hollow screw guide pin positioning device and application method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938073A (en) * | 2018-08-29 | 2018-12-07 | 万承兴 | Anteversion of femoral neck indicator |
| CN109106442A (en) * | 2018-09-06 | 2019-01-01 | 绍兴市上虞中医医院 | Fracture of neck of femur resets Kirschner wire positioning device |
| CN109350218A (en) * | 2018-10-31 | 2019-02-19 | 中国人民解放军第四军医大学 | A kind of fixed device of screw placement for fracture of neck of femur model |
| CN110432970A (en) * | 2019-07-18 | 2019-11-12 | 杨淑野 | A kind of neck of femur Kirschner wire positioning adjustment system |
| WO2023202611A1 (en) * | 2022-04-19 | 2023-10-26 | 深圳市第二人民医院 | Projection principle-based guide robot and orthopedic surgery screw placement method |
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| CN105748143A (en) * | 2016-04-29 | 2016-07-13 | 谢小波 | Femur neck guider |
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| CN102499752A (en) * | 2011-09-30 | 2012-06-20 | 中国人民解放军第三军医大学第一附属医院 | In vitro aiming device for minimally invasive screw internal fixation of femoral neck fracture |
| CN105592810A (en) * | 2014-09-11 | 2016-05-18 | 瑞特医疗技术公司 | Guidance system and method for bone fusion |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938073A (en) * | 2018-08-29 | 2018-12-07 | 万承兴 | Anteversion of femoral neck indicator |
| CN108938073B (en) * | 2018-08-29 | 2023-09-22 | 万承兴 | Femoral neck anteversion angle indicator |
| CN109106442A (en) * | 2018-09-06 | 2019-01-01 | 绍兴市上虞中医医院 | Fracture of neck of femur resets Kirschner wire positioning device |
| CN109350218A (en) * | 2018-10-31 | 2019-02-19 | 中国人民解放军第四军医大学 | A kind of fixed device of screw placement for fracture of neck of femur model |
| CN109350218B (en) * | 2018-10-31 | 2023-11-10 | 中国人民解放军第四军医大学 | Screw implantation fixing device for femur neck fracture model |
| CN110432970A (en) * | 2019-07-18 | 2019-11-12 | 杨淑野 | A kind of neck of femur Kirschner wire positioning adjustment system |
| CN110432970B (en) * | 2019-07-18 | 2024-05-28 | 杨淑野 | Femur neck Kirschner wire positioning adjustment system |
| WO2023202611A1 (en) * | 2022-04-19 | 2023-10-26 | 深圳市第二人民医院 | Projection principle-based guide robot and orthopedic surgery screw placement method |
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