CN107802337A - The pre- clamping and positioning device of limit adjustable - Google Patents
The pre- clamping and positioning device of limit adjustable Download PDFInfo
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- CN107802337A CN107802337A CN201711194340.2A CN201711194340A CN107802337A CN 107802337 A CN107802337 A CN 107802337A CN 201711194340 A CN201711194340 A CN 201711194340A CN 107802337 A CN107802337 A CN 107802337A
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- 210000001699 lower leg Anatomy 0.000 description 15
- 238000011161 development Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 210000000988 bone and bone Anatomy 0.000 description 5
- 210000002303 tibia Anatomy 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 241000565675 Oncomelania Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
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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
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
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Abstract
This application discloses a kind of pre- clamping and positioning device of limit adjustable, including locating rod, the second sliding block, second sliding block is arranged with the chute for accommodating the locating rod, second sliding block is installed on described locating rod one end by slide, second sliding block slides along the positioning rod axis, second sliding block is fixed with the locating rod by a fixing screws, the locating rod is arranged with multiple circular grooves in the side that the fixing screws are fixed is recessed, and the fixing screws are positioned by the circular groove.The advantage of the invention is that selecting the position of the second sliding block positioning round groove according to the size of intramedullary nail, it is accurately positioned so as to realize.
Description
Technical field
The application is related to a kind of medicine equipment, more particularly to a kind of pre- clamping and positioning device of limit adjustable.
Background technology
When shin bone fracture needs use Intramedullary nailing, how by intramedullary nail is accurate and the convenient fixed always industry of positioning
Interior problem.
The content of the invention
It is an object of the invention to provide a kind of pre- clamping and positioning device of limit adjustable, with being accurately positioned for intramedullary nail.
To achieve the above object, the present invention provides following technical scheme.
The embodiment of the present application discloses a kind of pre- clamping and positioning device of limit adjustable, including locating rod, the second sliding block, described
Second sliding block is arranged with the chute for accommodating the locating rod, and second sliding block is installed on the locating rod one by slide
End, second sliding block slide along the positioning rod axis, and second sliding block is consolidated with the locating rod by a fixing screws
Fixed, the locating rod is arranged with multiple circular grooves in the side that the fixing screws are fixed is recessed, and the fixing screws pass through
The circular groove positioning, second sliding block are connected and fixed on L bracket transverse arm, and the locating rod deviates from second sliding block
One end be connected and fixed on collimation support, the L bracket vertical arm bottom is connected with intramedullary nail near-end, the locating rod with
The intramedullary nail is located at described L bracket the same side, the positioning rod axis and the intra medullary nail far-end diameter parallel.
Preferably, in the above-mentioned pre- clamping and positioning device of limit adjustable, second sliding block passes through with the L bracket
Bolt detachably rivets.
Preferably, in the above-mentioned pre- clamping and positioning device of limit adjustable, the locating rod passes through with the collimation support
Bolt detachably rivets.
Preferably, in the above-mentioned pre- clamping and positioning device of limit adjustable, the L bracket transverse arm and the intramedullary nail are near
Hold diameter parallel.
Preferably, in the above-mentioned pre- clamping and positioning device of limit adjustable, the locating rod is with second sliding block in institute
Chute opening is stated to maintain an equal level.
Preferably, in the above-mentioned pre- clamping and positioning device of limit adjustable, the locating rod section is trapezoidal.
Preferably, in the above-mentioned pre- clamping and positioning device of limit adjustable, the locating rod is located on the inside of the chute
Cross-sectional length is more than the cross-sectional length positioned at the chute opening.
Compared with prior art, the advantage of the invention is that when performing an operation, because the height of people differs, so intramedullary nail
Length it is also different, so operation when fix intra medullary nail far-end before need first to confirm collimation support position, due to second
Sliding block is slided along positioning rod axis and locating rod and intra medullary nail far-end diameter parallel so that locating rod is long in short-term in regulation, no
Collimation support positioning intra medullary nail far-end screw hole can be influenceed, the second sliding block positioning round groove is selected according to the size of intramedullary nail
Position, be accurately positioned so as to realize.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 show the stereochemical structure signal of shin bone adjustable tape lock intramedullary nail sighting device in the specific embodiment of the invention
Figure；
Fig. 2 show intramedullary nail in the specific embodiment of the invention, rotating shaft, L bracket exploded view；
Fig. 3 show partial enlarged drawing in Fig. 2；
Fig. 4 show L bracket three-dimensional structure diagram in the specific embodiment of the invention；
Fig. 5 show intramedullary nail and rotating shaft junction enlarged drawing in Fig. 3；
Fig. 6 show rotating mass junction enlarged drawing in Fig. 3；
Fig. 7 show rotating mass internal structure schematic diagram；
Fig. 8 show the rotating mass internal structure schematic diagram at another visual angle；
Fig. 9 show the dimensional structure diagram of locating rod in the specific embodiment of the invention；
Figure 10 show the first push rod connection diagram in the specific embodiment of the invention；
Figure 11 show the dimensional structure diagram of the first push rod in the specific embodiment of the invention；
Figure 12 show application drawing when collimation support in the specific embodiment of the invention is located at three positions；
Figure 13 show the dimensional structure diagram of carriage in the specific embodiment of the invention；
Figure 14 show the dimensional structure diagram of collimation support in the specific embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, detailed retouch is carried out to the technical scheme in the embodiment of the present invention
State, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example, 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.
Intramedullary nail is generally fold-line-shaped, and its near-end is different from distal end axial line.
With reference to shown in Fig. 1-8, the multi-direction adjustable fixer of near-end, including rotating shaft 110, intramedullary nail 400, L bracket
120, the one end of rotating shaft 110 is connected with the near-end of intramedullary nail 400, and the other end is rotationally connected with the vertical arm of L bracket 120, rotating shaft 110
It is identical with the axial line of the near-end of intramedullary nail 400, the diameter parallel of the transverse arm of L bracket 120 and the near-end of intramedullary nail 400, L bracket
110 axial lines rotate 120 vertical arm around the shaft, and rotating shaft 110 is disposed with 6-8 positioning close to the one end side of L bracket 120
Groove 119, the vertical arm of L bracket 120 offer the anchor window 122 of positioning locating slot 119 position, and the proximal side of intramedullary nail 400 is opened
Provided with the first screw hole 410 with the quantity identical different directions of locating slot 119, identical number is offered on the transverse arm of L bracket 120
Second positioning hole 121 of amount, when anchor window 122 turns to any one locating slot 119, one of those second positioning hole
Identical with the axial line of one of those the first screw hole 410 in 121, i.e. the second positioning hole and the first screw hole correspond,
It can be achieved by adjusting positioning locating slot.
Using the technical scheme, when fixed intramedullary nail near-end, L bracket only need to be rotated, is determined with locating slot in marrow
The position of oncomelania nail and L bracket upper Positioning holes, the positioning hole for directly squeezing into fixing screws in L bracket can squeeze into marrow
The screw hole inside nailed on, which is realized, to be fixed, simple operation, registration.
Further, the transverse arm of L bracket 120 includes symmetrically arranged two elastic arm, and it is provided with away from one end of vertical arm
One lock 123.
With reference to shown in Fig. 4, facilitate fixed sleeving when playing screw.
Further, the side of L bracket 120 offers wire casing 124, and quantity is identical with the quantity of the second positioning hole 121, each
Wire casing 124 is opened in the outside of each second positioning hole 121, the bearing of trend of wire casing 124 and the corresponding axis of second positioning hole 121
It is parallel.
Directly it is the direction that may know that positioning hole by the direction of outside wire casing with reference to shown in Fig. 4, it is convenient and swift.
Further, locating slot 119 corresponding to the second positioning hole 121 scribbles same color with the surface of wire casing 124, and difference is fixed
Surface color is different between the groove 119 of position.
When need to know locating slot and which positioning hole to it is corresponding when directly see the color of locating slot and wire casing surface,
After anchor window rotates, the locating slot of some color is turned to, then finds same color wire casing, it is possible to confirmed at once now
Screw should be played is the second positioning hole of the color, further improves efficiency.
Further, the vertical arm bottom of L bracket 120 is connected and fixed on a rotating mass 130, and rotating mass 130 is around the shaft
110 axial lines rotate, and anchor window 122 is opened in rotating mass 130.
With reference to shown in Fig. 6, this scheme is preferred scheme, should all belong to scope of the present application using other modes certainly.
Further, the outer surface of rotating shaft 110 offers N number of bar-shaped trough 101, bar-shaped trough 101 corresponding to the array of locating slot 119
With the diameter parallel of rotating shaft 110, locating slot 119 is located to should be on the extension line of bar-shaped trough 101 of locating slot 119, rotating mass 130
Offer the cavity 131 of a receiving rotating shaft 110, support is provided with bar shaped and presses button 132, the successively from top to bottom inside cavity 131
One bar shaped shank 133, the second bar shaped shank 134, it is vertical with the first bar shaped shank 133 that button 132 is pressed in bar shaped, the second bar shaped shank
134 press that button 132 is parallel, and the bottom of the second bar shaped shank 134 is contained in bar-shaped trough 101 with bar shaped, and bar shaped is pressed the one end of button 132 and convexedly stretched in
Rotating mass 130, the other end are held in the first spring 135, and the other end of the first spring 135 is held in the inner surface of rotating mass 130,
Bar shaped presses the bottom of button 132 and offers the first groove 136 for accommodating the first bar shaped shank 133,
When bar shaped presses button 132 and is located at first position, the first bar shaped shank 133 is held in bar shaped, and to press button 132 recessed away from first
One end bottom of groove 136, the second bar shaped shank 134 are held in the bottom of the first bar shaped shank 133, the bottom of the second bar shaped shank 134
It is supported in bar-shaped trough 101；
When bar shaped presses button 132 and is located at the second place, the first bar shaped shank 133 is located at the first groove 136, the second bar shaped shank
134 roll in the surface of rotating shaft 110 along its axis.
With reference to shown in Fig. 7-8, this is a kind of embodiment of the application, when bar shaped is pressed button and pressed inward, due to the of its bottom
One groove, the first bar shaped shank enter the first groove so that do not supported mutually between the first bar shaped shank and up and down each part, this
When rotating mass can integrally rotate, drive whole L bracket, which the second positioning hole selected to need, i.e., it is fixed only to confirm
Position groove, when choosing, button is pressed into bar shaped and unclamped, due to the presence of the first spring, button ejection, all parts are pressed into bar shaped
Mutually support, will not loosen up and down, now can be according to the locating slot chosen, to squeeze into the screw of corresponding second positioning hole.
Further, when bar shaped presses button 132 and is located at first position, the first spring 135 is in elongation state, and button is pressed in bar shaped
132 when being located at the second place, and the first spring 135 is in compressive state.
Further, the bottom of rotating shaft 110 is provided with a resilient projection part 117, and resilient projection part 117 is held in rotating mass
130 inner surfaces.
Using the technical scheme so that structure integrally consolidates.
Further, rotating shaft 110 has outwardly protruded out first annular supporting surface 118, and first annular supporting surface 118 supports
It is held in rotating mass 130.
Using the technical scheme so that structure integrally consolidates.
Further, the one end of the first bar shaped shank 133 is fixedly installed in rotating mass 130.
Using the technical scheme so that structure integrally consolidates.
With reference to shown in Fig. 1 and Fig. 9, the pre- clamping and positioning device of limit adjustable, including locating rod 210, the second sliding block 220, the
Two sliding blocks 220 are arranged with the chute 221 for accommodating locating rod 210, and the second sliding block 220 is slidably mounted on locating rod by chute 221
210 one end, the second sliding block 220 slide along the axis of locating rod 210, and the second sliding block 220 passes through a fixing screws with locating rod 210
230 fix, and locating rod 210 is arranged with multiple circular grooves 211, fixing screws 230 in the side that fixing screws 230 are fixed is recessed
Positioned by circular groove 211, the second sliding block 220 is connected and fixed on the transverse arm of L bracket 120, and locating rod 210 deviates from the second sliding block
220 one end is connected and fixed on collimation support 310, and the vertical arm bottom of L bracket 120 is connected with the near-end of intramedullary nail 400, positioning
Bar 210 is located at the same side of L bracket 120, the axis of locating rod 210 and the distal end diameter parallel of intramedullary nail 400 with intramedullary nail 400.
When performing an operation, because the height of people differs, so the length of intramedullary nail is also different, so fixing marrow during operation
Need first to confirm collimation support position before interior nail distal end, due to the second sliding block along positioning rod axis slide and locating rod with
Intra medullary nail far-end diameter parallel so that locating rod is long in short-term in regulation, does not interfere with collimation support positioning intra medullary nail far-end screw
Hole, the position of the second sliding block positioning round groove, collimation support and intra medullary nail far-end screw are selected according to the size of intramedullary nail
How hole is positioned referring to the adjustable sighting device of distal end positioned parallel platform.
Further, the second sliding block 220 is detachably riveted with L bracket 120 by bolt.Locating rod 210 is with aiming at branch
Frame 310 is detachably riveted by bolt.
It is preferred that using riveting, it can be realized using forms such as other connection such as buckles certainly, should all belong to this Shen
Scope please.
Further, the transverse arm of L bracket 120 and the near-end diameter parallel of intramedullary nail 400.
Further, locating rod 210 maintains an equal level with the second sliding block 220 in the opening of chute 221.
Further, the section of locating rod 210 is trapezoidal.The cross-sectional length that locating rod 210 is located at the inner side of chute 221 is more than position
In the cross-sectional length of the opening of chute 221.
It ensure that the entirety of structure consolidates.
With reference to shown in Fig. 1 and Figure 10-14, the adjustable sighting device of distal end positioned parallel platform, including intramedullary nail 400, L-shaped
Support 120, locating rod 210, collimation support 310, the near-end of intramedullary nail 400 are fixedly installed in the vertical arm bottom of L bracket 120, positioning
Bar 210 is connected and fixed on the transverse arm of L bracket 120, and locating rod 210 is located at the same side of L bracket 120, locating rod with intramedullary nail 400
210 axis are installed on locating rod 210 with the distal end diameter parallel of intramedullary nail 400 and the first plane of formation, the movement of collimation support 310
One end away from L bracket 120, its moving direction offer diameter parallel in first perpendicular to the first plane, collimation support 310
First positioning hole 311 of plane and development hole 312, the distal end of intramedullary nail 400 offer the second screw hole 440 and the side by side vertically
Three screw holes 450, the second screw hole 440 and the axis of the 3rd screw hole 450 are respectively parallel to the first plane and perpendicular to intramedullary nail
400 distal end axis, when collimation support 310 is located at three positions, the second screw hole 440 is identical with the axial line of the first positioning hole 311,
3rd screw hole 450 is identical with the development axial line of hole 312, in addition to a locating dowel 320, locating dowel 320 pass through the first positioning hole
311 and one end be removably fixed in the second screw hole 440, locating dowel 320 positions the first positioning hole 311 and the second screw hole
The distance between 440.Locating dowel 320 is detachably fixed with the second screw hole 440 by screw thread.
It is then that locating rod and collimation support is overall first by collimation support and locating rod location confirmation with reference to shown in Fig. 1
Remove, intramedullary nail first squeezed into the position for needing to perform the operation, installed locating rod and collimation support according to original position after squeezing into,
Because intra medullary nail far-end may be stressed effect, original the second screw hole and the 3rd screw hole may be corresponding thereto the
A positioning hole has been slightly mispositioned with development hole, but because its length will not become, i.e., the axial distance of intramedullary nail will not change,
I.e. for the dislocation direction of intra medullary nail far-end according to as viewed from the perspective of in Fig. 1, intramedullary nail or so length is constant, may be toward up and down
Or fore-and-aft direction deviation, because intra medullary nail far-end axis and locating rod diameter parallel form the first plane, the second screw hole with
3rd screw hole parallel to the first plane and perpendicular to intra medullary nail far-end axis, collimation support perpendicular to the first planar movement,
The first step adjusts the deviation up and down of intramedullary nail first, passes through external device (ED) development rod locating development hole and the position of the 3rd screw hole
Put, because collimation support can only move up and down in the first planar movement, i.e. Fig. 1, inserted after positioning in the first positioning hole
Enter locating dowel, be detachably fixed with the second screw hole by screw thread, due to positioning column length confirm and it is adjustable, if intramedullary nail
It is inclined forward, pulled back by locating dowel, if toward retrodeviating, by being pushed away before locating dowel, finally realize intramedullary nail
Positioning.
Further, collimation support 310 also includes the 3rd positioning hole 313, and the axis of the 3rd positioning hole 313 is flat perpendicular to first
Face, the distal end of intramedullary nail 400 are arranged with a square groove 460, in addition to the first push rod 330, and collimation support 310 is located at the 3rd position
When, the first push rod 330 is through the 3rd positioning hole 313 and is held in square groove 460.The center outer surface of first push rod 330 is recessed
Provided with first annular groove 331, installation settings has the first flexible block 332 on collimation support 310, and the first push rod 330 passes perpendicularly through
First flexible block 332 and side are held in the first flexible block 332, and the thickness of the first flexible block 332 is slightly less than the first ring
The height of shape groove 331, when collimation support 310 is located at three positions, the first flexible block 332 is held in the ring of the first push rod 330 first
The position of shape groove 331.First flexible block 332 convexedly stretches in collimation support 310.
Using the technical scheme, traditional doctor likes positioning by the way of push rod, because the deviation of intramedullary nail such as Fig. 1
Middle most cases only exist upward deviation, and without front and rear and downward deviation, such a situation is very convenient using push rod mode, will push up
Bar insertion enters to be held on intramedullary nail, and then push rod is by the flexible block set a distance on itself groove and collimation support, such as
In figure shown in 10-11, the positioning of intramedullary nail is very easily realized.
Further, fourth positioning hole 314 different from the direction of the first positioning hole 311 is further opened with collimation support 310
With the 5th positioning hole 315, the distal end of intramedullary nail 400 offers the 4th screw hole 470 and the 5th screw hole 480, collimation support 310
When three positions, the 4th positioning hole 314 is identical with the axial line of the 4th screw hole 470, the 5th positioning hole 315 and the 5th screw hole
480 axial lines are identical.
, will be fixed between intramedullary nail and people's bone for nailing as shown in Figure 10 and 12.
Further, collimation support 310 is installed on locating rod 210, carriage 340 by a carriage 340 movement
The first sliding block 341 including the collimation support 310 that is connected, support fix the contiguous block 342 of the first sliding block 341, contiguous block 342
It is connected with locating rod 210, the first sliding block 341 is provided with linear gear 343, straight line tooth away from the side of collimation support 310
Wheel 343 extends perpendicularly to the first plane, in addition to a rotating disk 345 for being fixedly installed in contiguous block 342, inside rotating disk 345
It is provided with and is coaxial therewith fixed first gear 346, first gear 346 is engaged with linear gear 343.
This is a kind of embodiment of the application, the movement of collimation support is realized by the regulation of rotating disk, due to the first sliding block
Vertical first plane of linear gear, ensure that collimation support can only move along perpendicular to the direction of the first plane.
Further, second gear 347 co-axially fixed with first gear 346, the second tooth are additionally provided with inside rotating disk 345
Take turns 347 numbers of teeth and be more than the number of teeth of first gear 346, in addition to a screw rod 348, the outer surface of screw rod 348 are provided with screw thread, screw rod 348
Outer surface thread is engaged with second gear 347, and screw rod 348 convexedly stretches in rotating disk 345.The one end of screw rod 348 is pivotally mounted to rotating disk
Inside 345, screw rod 348 can depart from second gear 347.
Second gear is driven by screw rod, second gear drives first gear, first gear band movable slider, realizes fine setting,
When screw rod departs from, directly adjusted by rotating disk, realize coarse adjustment.
Further, the center outer surface of locating dowel 320 is arranged with the second annular groove, there is installation settings on collimation support 310
Second flexible block 321, locating dowel 320 passes perpendicularly through the second flexible block 321 and side is held in the second flexible block
321, the thickness of the second flexible block 321 is slightly less than the second annular groove height, when collimation support 310 is located at three positions, the second bullet
Property block 321 is held in 320 second annular groove location of locating dowel, and the second flexible block 321 convexedly stretches in collimation support 310.
The mode of locating dowel orientation distance is consistent with the first push rod, only needs the second flexible block and the second annular groove card and is
Positioning can be achieved.
With reference to shown in Fig. 1,2,3,5,6, shin bone adjustable tape lock intramedullary nail sighting device, including rotating shaft 110, L bracket
120th, locating rod 210, collimation support 310, the one end of rotating shaft 110 are connected with the near-end of intramedullary nail 400, and the other end is rotationally connected with
The vertical arm of L bracket 120, rotating shaft 110 is identical with the axial line of the near-end of intramedullary nail 400, and the transverse arm of L bracket 120 and intramedullary nail 400 are near
The diameter parallel at end, 110 axial lines rotate the vertical arm of L bracket 120 around the shaft, and the proximal side of intramedullary nail 400 offers multiple sides
To the first different screw holes 410, the transverse arm of L bracket 120 offers multiple the second positioning holes for corresponding to the first screw hole 410
121, the one end of locating rod 210 is fixedly installed in the transverse arm of L bracket 120, the adjustable in length of locating rod 210, locating rod 210 with marrow
Follow closely 400 distal end diameter parallels and form the first plane, collimation support 310 moves along the first plane vertical direction and is installed on positioning
Bar 210 deviates from one end of L bracket 120, and collimation support 310 offers the first positioning hole 311 and development hole 312, intramedullary nail 400
The end face both sides recessed jagged 420 being connected with rotating shaft 110, one end inner surface setting that intramedullary nail 400 is connected with rotating shaft 110 has
Internal thread 430, rotating shaft 110 include the identical round bar 112 of first round bar 111 and second of axial line, on one end end face of the first round bar 111
The convex body 113 of filling breach 420 is protruded out, one end outer surface of the second round bar 112, which is provided with, coordinates the internal thread 430 of intramedullary nail 400
External screw thread 114, the second round bar 112 sets the second annular support surface 115 of its vertical axis away from one end of external screw thread 114,
First round bar 111 is engaged with intramedullary nail 400, and the second round bar 112 penetrates the first round bar 111 along axis and passes through spiral shell with intramedullary nail 400
Line connects, and the second annular support surface 115 is held in one end end face that the first round bar 111 deviates from intramedullary nail 400, the second annular brace
Face 115 is held in L bracket 120, in addition to the second push rod 116, and the second push rod 116 penetrates along the near-end axial line of intramedullary nail 400
Second round bar 112 and be removably fixed in the second round bar 112, at least 1 the first screw hole 410 along intramedullary nail 400 axially
Protrude out, the second push rod 116 extends to first screw hole 410.Second push rod 116 is connected through a screw thread with the second round bar 112.
When fixed intramedullary nail near-end, it is necessary to which the knochenbruch push-tight that will have been resetted, so can be only achieved treatment before tack hole
Effect, by the first round bar and the second round bar of rotating shaft, the accurate fixation to intramedullary nail is realized, when squeezing into first nail, selected
Selecting has the first screw hole axially protruded out, the first screw hole of label 410 in Fig. 5, is incited somebody to action after squeezing into nail by the second push rod
Nail elapses toward intra medullary nail far-end, because the second push rod is detachably connected with the second round bar using screw thread, can conveniently realize and push up
Enter, knochenbruch is more bonded, the fixation of intramedullary nail near-end is then realized by the other nails of fixation.
Further, the vertical arm bottom of L bracket 120 is connected and fixed on a rotating mass 130, and rotating mass 130 is around the shaft
110 axial lines rotate.
Further, the bottom of rotating shaft 110 is provided with a resilient projection part 117, and resilient projection part 117 is held in rotating mass
130 inner surfaces.
Further, rotating shaft 110 has outwardly protruded out first annular supporting surface 118, and first annular supporting surface 118 supports
It is held in rotating mass 130.
Equipment integrated operation mode is as follows：This covering device can be taken to realize when human tibia, which fractures, to be needed and reset, it is first
Suitable intramedullary nail is first used, intramedullary nail near-end is connected and fixed on rotating shaft, because rotating shaft using occlusion and is threadedly coupled fixation,
So the position of intramedullary nail can be accurately positioned, L bracket vertical arm rotates around intramedullary nail near-end axis, and L bracket transverse arm
Parallel all the time with intramedullary nail near-end axis, locating rod adjusts positioning by sliding block, and locating rod can be fixed on first when fixing
In positioning hole, realize that a hole uses, because intramedullary nail length dimension is certain several specific dimensions, so passing through the circle in locating rod
Connected in star determines length, locating rod and intra medullary nail far-end diameter parallel and forms the first plane, and collimation support again can only be vertical
Straight first plane direction movement, and the second screw hole with the 3rd screw hole parallel to the first plane and vertical intra medullary nail far-end axle
Line, so need to only adjust the first positioning hole on collimation support and development hole, hole of developing first is confirmed up and down by developing rod
Position, the positioning of fore-and-aft direction is then realized after location confirmation by locating dowel, because length direction will not become, it is achieved that
The final positioning of intramedullary nail, then by can also in the other screw holes and positioning hole had good positioning in advance, including development hole
Nail is squeezed into, drivescrew mutually fixes intra medullary nail far-end with bone, because people's bone left and right directions is different, so on collimation support
It is also right on intramedullary nail there is provided symmetrical the 3rd positioning hole for placing the first push rod, and some other symmetrically arranged positioning hole
Title is provided with corresponding screw hole；
After intra medullary nail far-end and bone are fixed by screw, collimation support to be removed, locating rod is also removed, the
An axial direction in one screw hole protrudes out, and fixes the position first, is distinguished by the color on locating slot to select L bracket to turn
Dynamic position, when turning to the position, drivescrew, knochenbruch is held out against by the second push rod, then L bracket turns to not
The screw of correspondence position is squeezed into position, realizes the fixation of intramedullary nail near-end and bone.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
Described above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (7)
- A kind of 1. pre- clamping and positioning device of limit adjustable, it is characterised in that including locating rod, the second sliding block, second sliding block The chute for accommodating the locating rod is arranged with, second sliding block is installed on described locating rod one end by slide, described Second sliding block is slided along the positioning rod axis, and second sliding block is fixed with the locating rod by a fixing screws, described Locating rod is arranged with multiple circular grooves in the side that the fixing screws are fixed is recessed, and the fixing screws pass through the circle Groove positions, and second sliding block is connected and fixed on L bracket transverse arm, and the locating rod connects away from one end of second sliding block Connect and be fixed on collimation support, the L bracket vertical arm bottom is connected with intramedullary nail near-end, in the locating rod and the marrow Nail is located at described L bracket the same side, the positioning rod axis and the intra medullary nail far-end diameter parallel.
- 2. the pre- clamping and positioning device of limit adjustable according to claim 1, it is characterised in that second sliding block with it is described L bracket is detachably riveted by bolt.
- 3. the pre- clamping and positioning device of limit adjustable according to claim 1, it is characterised in that the locating rod is taken aim at described Quasi- support is detachably riveted by bolt.
- 4. the pre- clamping and positioning device of limit adjustable according to claim 1, it is characterised in that the L bracket transverse arm with The intramedullary nail near-end diameter parallel.
- 5. the pre- clamping and positioning device of limit adjustable according to claim 1, it is characterised in that the locating rod and described the Two sliding blocks maintain an equal level in the chute opening.
- 6. the pre- clamping and positioning device of limit adjustable according to claim 5, it is characterised in that the locating rod section is ladder Shape.
- 7. the pre- clamping and positioning device of limit adjustable according to claim 6, it is characterised in that the locating rod is positioned at described Cross-sectional length on the inside of chute is more than the cross-sectional length positioned at the chute opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194340.2A CN107802337B (en) | 2017-11-24 | 2017-11-24 | Limiting adjustable pre-tightening positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194340.2A CN107802337B (en) | 2017-11-24 | 2017-11-24 | Limiting adjustable pre-tightening positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107802337A true CN107802337A (en) | 2018-03-16 |
| CN107802337B CN107802337B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711194340.2A Active CN107802337B (en) | 2017-11-24 | 2017-11-24 | Limiting adjustable pre-tightening positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107802337B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676846Y (en) * | 2003-11-19 | 2005-02-09 | 钱福卿 | Remote and aiming composite femur intrameducllary nail device with lock |
| WO2006136086A1 (en) * | 2005-06-20 | 2006-12-28 | Yijing Yang | An intramedullary nail collimator |
| CN2917570Y (en) * | 2006-06-01 | 2007-07-04 | 常州华森医疗器械有限公司 | Femoral intramedullary nail and rapid sighting device thereof |
| CN105411661A (en) * | 2015-12-31 | 2016-03-23 | 张堃 | Far-end positioning rod for tibia intramedullary nail |
| CN208864471U (en) * | 2017-11-24 | 2019-05-17 | 苏州市康力骨科器械有限公司 | The pre- clamping and positioning device of limit adjustable |
-
2017
- 2017-11-24 CN CN201711194340.2A patent/CN107802337B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676846Y (en) * | 2003-11-19 | 2005-02-09 | 钱福卿 | Remote and aiming composite femur intrameducllary nail device with lock |
| WO2006136086A1 (en) * | 2005-06-20 | 2006-12-28 | Yijing Yang | An intramedullary nail collimator |
| CN2917570Y (en) * | 2006-06-01 | 2007-07-04 | 常州华森医疗器械有限公司 | Femoral intramedullary nail and rapid sighting device thereof |
| CN105411661A (en) * | 2015-12-31 | 2016-03-23 | 张堃 | Far-end positioning rod for tibia intramedullary nail |
| CN208864471U (en) * | 2017-11-24 | 2019-05-17 | 苏州市康力骨科器械有限公司 | The pre- clamping and positioning device of limit adjustable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107802337B (en) | 2024-04-09 |
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