CN208426202U - The multi-direction adjustable fixer in proximal end - Google Patents
The multi-direction adjustable fixer in proximal end Download PDFInfo
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- CN208426202U CN208426202U CN201721591433.4U CN201721591433U CN208426202U CN 208426202 U CN208426202 U CN 208426202U CN 201721591433 U CN201721591433 U CN 201721591433U CN 208426202 U CN208426202 U CN 208426202U
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- bracket
- intramedullary nail
- shaft
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- 230000008901 benefit Effects 0.000 abstract description 2
- 210000001699 lower leg Anatomy 0.000 description 27
- 238000011161 development Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 4
- 210000002303 tibia Anatomy 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000009434 installation 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
- 230000008859 change Effects 0.000 description 1
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Abstract
This application discloses a kind of multi-direction adjustable fixers in proximal end, including shaft, intramedullary nail, L bracket, described shaft one end is connected and fixed with the intramedullary nail proximal end, the other end is rotationally connected with the L bracket vertical arm, the shaft is identical as the axial line of the intramedullary nail proximal end, the L bracket transverse arm is parallel with the axis of the intramedullary nail proximal end, the L bracket vertical arm is rotated around the rotating shaft core line, the shaft is disposed with N number of locating slot close to the one end side of the L bracket, the L bracket vertical arm offers the anchor window for positioning the positioning groove location, the intramedullary nail proximal side offers the first screw hole of N number of different directions, N number of second location hole is offered on the L bracket transverse arm.The utility model has the advantage of the accurate positioning for realizing intramedullary nail proximal end and more convenient and fast fixed intramedullary nail proximal end.
Description
Technical field
This application involves a kind of medical instrument, in particular to a kind of multi-direction adjustable fixer in proximal end.
Background technique
When shin bone fracture is needed with Intramedullary nailing, how by intramedullary nail is accurate and the convenient fixed always industry of positioning
Interior problem.
Utility model content
The purpose of this utility model is to provide a kind of multi-direction adjustable fixers in proximal end, to realize intramedullary nail proximal end
Accurate positioning.
To achieve the above object, the utility model provides the following technical solutions.
The embodiment of the present application discloses a kind of multi-direction adjustable fixer in proximal end, including shaft, intramedullary nail, L shape branch
Frame, described shaft one end are connected and fixed with the intramedullary nail proximal end, and the other end is rotationally connected with the L bracket vertical arm, described
Shaft is identical as the axial line of the intramedullary nail proximal end, and the L bracket transverse arm is parallel with the axis of the intramedullary nail proximal end, institute
It states L bracket vertical arm to rotate around the rotating shaft core line, the shaft is disposed with close to the one end side of the L bracket
N number of locating slot, the L bracket vertical arm offer the anchor window for positioning the positioning groove location, the intramedullary nail proximal lateral
Face offers the first screw hole of N number of different directions, and N number of second location hole, the positioning are offered on the L bracket transverse arm
When window turns to locating slot described in m-th, the axial line of the m-th second location hole and first screw hole of m-th
Identical, described M, N are positive integer, the M≤N.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, the L bracket transverse arm includes being symmetrical arranged
Two elastic arms, one end of vertical arm is provided with a lock.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, the L bracket side offers N number of line
Slot, each wire casing correspond to each second location hole, the wire casing extending direction and corresponding second location hole axis
Line is parallel.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, the corresponding locating slot of the second location hole
It is coated with same color with wire casing surface, surface color is different between the different locating slots.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, L bracket vertical arm bottom is connected and fixed
In a rotating mass, the rotating mass is rotated around the rotating shaft core line, and the anchor window is opened in the rotating mass.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, it is described fixed that the shaft outer surface corresponds to
Position slot array offers N number of strip groove, and the strip groove is parallel with the shaft axis, and the locating slot is located at the corresponding positioning
On the strip groove extension line of slot, the rotating mass offers the cavity of the receiving shaft, the inside cavity from up to
Under successively support be provided with bar shaped and press button, the first bar shaped shank, the second bar shaped shank, button and the first bar shaped shank are pressed in the bar shaped
Vertically, the second bar shaped shank presses that button is parallel, and the second bar shaped shank bottom is contained in the strip groove with the bar shaped,
The bar shaped presses button one end and convexedly stretches in the rotating mass, and the other end is held in the first spring, and the first spring other end supports
It is held in the rotating mass inner surface, the bar shaped presses button bottom and offers the first groove for accommodating the first bar shaped shank,
When the bar shaped presses button and is located at first position, the first bar shaped shank is held in the bar shaped and presses button far from described
One end bottom of first groove, the second bar shaped shank are held in the first bar shaped shank bottom, the second bar shaped pin
Body bottom is supported in the strip groove；
When the bar shaped presses button and is located at the second position, the first bar shaped shank is located at first groove, and described second
Bar shaped shank is rolled along its axis in the shaft surface.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, when the bar shaped presses button and is located at first position,
First spring is in elongation state, and when the bar shaped presses button and is located at the second position, first spring is in compressive state.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, it is convex that the shaft bottom is provided with an elasticity
Component, the resilient projection part are held in the rotating mass inner surface.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, the shaft has outwardly protruded out
One annular support surface, the first annular supporting surface are held in the rotating mass.
Preferably, in the above-mentioned multi-direction adjustable fixer in proximal end, the fixed peace in described first bar shaped shank one end
Loaded on the rotating mass.
Compared with prior art, the utility model has the advantage of the accurate positioning for realizing intramedullary nail proximal end and more just
Prompt fixation intramedullary nail proximal end.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 show the stereochemical structure of shin bone adjustable tape lock intramedullary nail sighting device in the utility model specific embodiment
Schematic diagram；
Fig. 2 show intramedullary nail in the utility model specific embodiment, shaft, L bracket exploded view；
Fig. 3 show partial enlarged view in Fig. 2；
Fig. 4 show L bracket three-dimensional structure diagram in the utility model specific embodiment；
Fig. 5 show intramedullary nail and shaft junction enlarged drawing in Fig. 3；
Fig. 6 show rotating mass junction enlarged drawing in Fig. 3；
Fig. 7 show rotating mass schematic diagram of internal structure；
Fig. 8 show the rotating mass schematic diagram of internal structure at another visual angle；
Fig. 9 show the schematic perspective view of locating rod in the utility model specific embodiment；
Figure 10 show the first mandril connection schematic diagram in the utility model specific embodiment；
Figure 11 show the schematic perspective view of the first mandril in the utility model specific embodiment；
Figure 12 show application drawing when collimation support in the utility model specific embodiment is located at the third place；
Figure 13 show the schematic perspective view of carriage in the utility model specific embodiment；
Figure 14 show the schematic perspective view of collimation support in the utility model specific embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Detailed description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Intramedullary nail is generally fold-line-shaped, and proximal end is different from distal end axial line.
In conjunction with shown in Fig. 1-8, the multi-direction adjustable fixer in proximal end, including shaft 110, intramedullary nail 400, L bracket
120,110 one end of shaft is connected and fixed with 400 proximal end of intramedullary nail, and the other end is rotationally connected with 120 vertical arm of L bracket, shaft 110
Identical as the axial line of 400 proximal end of intramedullary nail, 120 transverse arm of L bracket is parallel with the axis of 400 proximal end of intramedullary nail, L bracket
110 axial lines rotate 120 vertical arm around the shaft, and shaft 110 is disposed with 6-8 positioning close to the one end side of L bracket 120
Slot 119,120 vertical arm of L bracket offer the anchor window 122 of positioning 119 position of locating slot, and 400 proximal side of intramedullary nail is opened
The first screw hole 410 equipped with different directions identical with 119 quantity of locating slot offers identical number on 120 transverse arm of L bracket
The second location hole 121 of amount, when anchor window 122 turns to any one locating slot 119, one of second location hole
Identical as the axial line of one of those the first screw hole 410 in 121, i.e., second location hole and the first screw hole correspond,
It can be realized by adjusting positioning locating slot.
Using the technical solution, when fixed intramedullary nail proximal end, L bracket only need to be rotated, is determined in marrow with locating slot
The position of location hole, directly can squeeze into marrow for the location hole that fixing screws are squeezed into L bracket in oncomelania nail hole and L bracket
The screw hole inside nailed on, which is realized, to be fixed, and convenient, registration is operated.
Further, 120 transverse arm of L bracket includes symmetrically arranged two elastic arm, and one end away from vertical arm is provided with
One lock 123.
As shown in connection with fig. 4, facilitate fixed sleeving when playing screw.
Further, 120 side of L bracket offers wire casing 124, and quantity is identical as 121 quantity of second location hole, each
Wire casing 124 is opened in the outside of each second location hole 121,124 extending direction of wire casing and corresponding 121 axis of second location hole
In parallel.
As shown in connection with fig. 4, it directly may know that the direction of location hole by the direction of external wire casing, it is convenient and efficient.
Further, the corresponding locating slot 119 of second location hole 121 is coated with same color with 124 surface of wire casing, and difference is fixed
Surface color is different between the slot 119 of position.
When need to know locating slot and which location hole to it is corresponding when directly see the color of locating slot Yu wire casing surface,
After anchor window rotation, the locating slot of some color is turned to, same color wire casing is then found, so that it may which confirmation at once is at this time
Screw should be played is the second location hole of the color, further increases efficiency.
Further, 120 vertical arm bottom of L bracket is connected and fixed on a rotating mass 130, and rotating mass 130 is around the shaft
The rotation of 110 axial lines, anchor window 122 are opened in rotating mass 130.
As shown in connection with fig. 6, this scheme is preferred embodiment, and scope of the present application all should belong to using other modes certainly.
Further, 110 outer surface of shaft offers N number of strip groove 101, strip groove 101 corresponding to 119 array of locating slot
Parallel with 110 axis of shaft, locating slot 119 is located on 101 extension line of strip groove of the corresponding locating slot 119, rotating mass 130
Offer the cavity 131 of a receiving shaft 110, successively support is provided with bar shaped and presses button 132, the 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 134 bottom of the second bar shaped shank is contained in strip groove 101 with bar shaped, and bar shaped is pressed 132 one end of button and convexedly stretched in
Rotating mass 130, the other end are held in the first spring 135, and 135 other end of the first spring is held in 130 inner surface of rotating mass,
Bar shaped presses 132 bottom of button 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 far from first
One end bottom of slot 136, the second bar shaped shank 134 are held in 133 bottom of the first bar shaped shank, 134 bottom of the second bar shaped shank
It is supported in strip groove 101；
When bar shaped presses button 132 and is located at the second position, the first bar shaped shank 133 is located at the first groove 136, the second bar shaped shank
134 roll along its axis in 110 surface of shaft.
In conjunction with 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 enters the first groove, so that do not supported mutually between the first bar shaped shank and up and down each component, this
When rotating mass can integrally rotate, drive entire L bracket, to select to need which second location hole, i.e., it is fixed only to confirm
Bar shaped is pressed button and unclamped by position slot when choosing, and due to the presence of the first spring, button pop-up, all components are pressed in bar shaped
It mutually supports, will not loosen up and down, it at this time can be according to selected locating slot, to squeeze into the screw of corresponding second location 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 be located at the second position when, the first spring 135 is in compressive state.
Further, 110 bottom of shaft is provided with a resilient projection part 117, and resilient projection part 117 is held in rotating mass
130 inner surfaces.
Using the technical solution, so that structure integrally consolidates.
Further, 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 solution, so that structure integrally consolidates.
Further, 133 one end of the first bar shaped shank is fixedly installed in rotating mass 130.
Using the technical solution, so that structure integrally consolidates.
In conjunction with 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 recessed with the sliding slot 221 for accommodating locating rod 210, and the second sliding block 220 is slidably mounted on locating rod by sliding slot 221
210 one end, the second sliding block 220 are slided along 210 axis of locating rod, and the second sliding block 220 passes through a fixing screws with locating rod 210
230 is fixed, and locating rod 210 is arranged with multiple circular grooves 211, fixing screws 230 in the fixed side of fixing screws 230 is recessed
It is positioned by circular groove 211, the second sliding block 220 is connected and fixed on 120 transverse arm of L bracket, and locating rod 210 deviates from the second sliding block
220 one end is connected and fixed on collimation support 310, and 120 vertical arm bottom of L bracket is connected and fixed with 400 proximal end of intramedullary nail, positioning
Bar 210 and intramedullary nail 400 are located at 120 the same side of L bracket, and 210 axis of locating rod is parallel with 400 distal end axis of intramedullary nail.
When performing an operation, since the height of people is different, so the length of intramedullary nail is also different, so fixed marrow when operation
Need first to confirm collimation support position before interior nail distal end, due to the second sliding block along positioning rod axis sliding and locating rod with
Intra medullary nail far-end axis is parallel, so that locating rod is adjusting length in short-term, will not influence collimation support positioning intra medullary nail far-end screw
Hole selects the position of the second sliding block positioning round groove, collimation support and intra medullary nail far-end screw according to the size of intramedullary nail
How hole, which positions, is seen 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 and aiming branch
Frame 310 is detachably riveted by bolt.
It is preferred that can be realized using forms such as other connections such as buckle certainly using riveting, this Shen all should belong to
Range please.
Further, 120 transverse arm of L bracket is parallel with 400 proximal end axis of intramedullary nail.
Further, locating rod 210 and the second sliding block 220 maintain an equal level in 221 opening of sliding slot.
Further, 210 section of locating rod is trapezoidal.The cross-sectional length that locating rod 210 is located at 221 inside of sliding slot is greater than position
In the cross-sectional length of 221 opening of sliding slot.
It ensure that the entirety of structure is firm.
In conjunction with shown in Fig. 1 and Figure 10-14, the adjustable sighting device of distal end positioned parallel platform, including intramedullary nail 400, L shape
Bracket 120, locating rod 210, collimation support 310,400 proximal end of intramedullary nail are fixedly installed in 120 vertical arm bottom of L bracket, positioning
Bar 210 is connected and fixed on 120 transverse arm of L bracket, and locating rod 210 and intramedullary nail 400 are located at 120 the same side of L bracket, locating rod
210 axis are parallel with 400 distal end axis of intramedullary nail and form the first plane, and the movement of collimation support 310 is installed on locating rod 210
One end far from L bracket 120, moving direction offer axis and are parallel to first perpendicular to the first plane, collimation support 310
The first positioning hole 311 of plane and development hole 312,400 distal end of intramedullary nail offer the second screw hole 440 and the along axial direction side by side
Three screw holes 450, the second screw hole 440 are respectively parallel to the first plane and perpendicular to intramedullary nail with 450 axis of third screw hole
400 distal end axis, when collimation support 310 is located at the third place, the second screw hole 440 is identical as 311 axial line of first positioning hole,
Third screw hole 450 is identical as development 312 axial line of hole, further includes a positioning column 320, and positioning column 320 passes through first positioning hole
311 and one end be removably fixed in the second screw hole 440, positioning column 320 positions first positioning hole 311 and the second screw hole
The distance between 440.Positioning column 320 is detachably fixed with the second screw hole 440 by screw thread.
As shown in connection with fig. 1, then that locating rod and collimation support is whole first by collimation support and locating rod location confirmation
It removes, intramedullary nail is first squeezed into the position for needing to perform the operation, install locating rod and collimation support according to original position after squeezing into,
Due to intra medullary nail far-end may by stress, the second original screw hole and third screw hole may corresponding thereto the
A positioning hole has been slightly mispositioned with development hole, but since 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 front-rear direction deviation, form the first plane since intra medullary nail far-end axis is parallel with positioning rod axis, the second screw hole with
Third screw hole is 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 the position in external device (ED) development stick locating development hole and third screw hole
It sets, since collimation support can only be moved up and down in i.e. Fig. 1 perpendicular to the first planar movement, is inserted in first positioning hole after positioning
Enter positioning column, be detachably fixed with the second screw hole by screw thread, due to positioning column length confirmation and it is adjustable, if intramedullary nail
It is inclined forward, it is pulled back by positioning column, if be pushed forward toward retrodeviating by positioning column, final realization intramedullary nail
Positioning.
Further, collimation support 310 further includes third location hole 313, and 313 axis of third location hole is flat perpendicular to first
Face, 400 distal end of intramedullary nail are recessed with a square groove 460, further include the first mandril 330, and collimation support 310 is located at the third place
When, the first mandril 330 passes through third location hole 313 and is held in square groove 460.First mandril, 330 center outer surface is recessed
Equipped with first annular slot 331, installation settings has the first flexible block 332 on collimation support 310, and the first mandril 330 passes perpendicularly through
First flexible block 332 and side are held in the first flexible block 332, and 332 thickness of the first flexible block is slightly less than the first ring
331 height of shape slot, when collimation support 310 is located at the third place, the first flexible block 332 is held in 330 first ring of the first mandril
331 position of shape slot.First flexible block 332 convexedly stretches in collimation support 310.
Using the technical solution, traditional doctor likes positioning by the way of mandril, because of the deviation of intramedullary nail such as Fig. 1
Middle most cases only exist upward deviation, and without front and back and downward deviation, such situation is very convenient using mandril mode, will push up
Bar insertion enters to be held on intramedullary nail, and then mandril 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 location hole 314 different from 311 direction of first positioning hole is also provided on collimation support 310
With the 5th location hole 315,400 distal end of intramedullary nail offers the 4th screw hole 470 and the 5th screw hole 480, and collimation support 310
When the third place, the 4th location hole 314 is identical as 470 axial line of the 4th screw hole, the 5th location hole 315 and the 5th screw hole
480 axial lines are identical.
As shown in Figure 10 and 12, it is used to nailing, it will be fixed between intramedullary nail and people's bone.
Further, collimation support 310 is installed on locating rod 210, carriage 340 by a carriage 340 movement
Including being connected and fixed the first sliding block 341 of collimation support 310, the link block 342 of the first sliding block 341, link block 342 are fixed in support
It is connected and fixed 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, further includes a turntable 345 for being fixedly installed in link block 342, inside turntable 345
It is provided with coaxially 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 adjusting of turntable, due to the first sliding block
Vertical first plane of linear gear, ensure that collimation support can only be moved along the direction perpendicular to the first plane.
Further, it is additionally provided with inside turntable 345 and the co-axially fixed second gear 347 of first gear 346, the second tooth
347 numbers of teeth are taken turns greater than 346 number of teeth of first gear, further include a screw rod 348,348 outer surface of screw rod is provided with screw thread, screw rod 348
Outer surface thread is engaged with second gear 347, and screw rod 348 convexedly stretches in turntable 345.348 one end of screw rod is pivotally mounted to turntable
Inside 345, screw rod 348 can be detached from second gear 347.
Second gear is driven by screw rod, second gear drives first gear, and first gear band movable slider realizes fine tuning,
It when screw rod is detached from, is directly adjusted by turntable, realizes coarse adjustment.
Further, 320 center outer surface of positioning column is recessed with the second annular groove, there is installation settings on collimation support 310
Second flexible block 321, positioning column 320 passes perpendicularly through the second flexible block 321 and side is held in the second flexible block
321,321 thickness of the second flexible block is slightly less than the second annular groove height, when collimation support 310 is located at the third place, the second bullet
Property block 321 be held in the annular groove location of positioning column 320 second, the second flexible block 321 convexedly stretches in collimation support 310.
The mode of positioning column orientation distance is consistent with the first mandril, only needs the second flexible block and the second annular groove card and is
Positioning can be achieved.
In conjunction with shown in Fig. 1,2,3,5,6, shin bone adjustable tape lock intramedullary nail sighting device, including shaft 110, L bracket
120, locating rod 210, collimation support 310,110 one end of shaft are connected and fixed with 400 proximal end of intramedullary nail, and the other end is rotationally connected with
120 vertical arm of L bracket, shaft 110 is identical as the axial line of 400 proximal end of intramedullary nail, and 120 transverse arm of L bracket and intramedullary nail 400 are close
The axis at end is parallel, and 110 axial lines rotate 120 vertical arm of L bracket around the shaft, and 400 proximal side of intramedullary nail offers multiple sides
To the first different screw holes 410,120 transverse arm of L bracket offers multiple second location holes for corresponding to the first screw hole 410
121,210 one end of locating rod is fixedly installed in 120 transverse arm of L bracket, 210 adjustable in length of locating rod, in locating rod 210 and marrow
It follows closely 400 distal end axis in parallel and forms 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 first positioning hole 311 and development hole 312, intramedullary nail 400
The end face two sides connecting with shaft 110 recessed jagged 420, one end inner surface that intramedullary nail 400 is connect with shaft 110 is provided with
Internal screw thread 430, shaft 110 includes identical first round bar 111 of axial line and the second round bar 112, on 111 one end end face of the first round bar
The convex body 113 of filling notch 420 is protruded out, 112 one end outer surface of the second round bar is provided with cooperation 400 internal screw thread 430 of intramedullary nail
External screw thread 114, the second annular support surface 115 of its vertical axis is arranged away from one end of external screw thread 114 the second round bar 112,
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 connection, the second annular support surface 115 are 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, further includes the second mandril 116, and the second mandril 116 is penetrated along 400 proximal end axial line of intramedullary nail
Second round bar 112 and it is removably fixed in the second round bar 112, at least 1 the first screw hole 410 is axial along intramedullary nail 400
It protrudes out, the second mandril 116 extends to first screw hole 410.Second mandril 116 is connected through a screw thread with the second round bar 112.
When fixed intramedullary nail proximal end, before tack hole, the knochenbruch push-tight for needing to have resetted can be only achieved treatment in this way
Effect realizes the accurate fixation to intramedullary nail by the first round bar and the second round bar of shaft, when squeezing into first nail, selects
Selecting has the first screw hole axially protruded out, and the first screw hole of label 410 in Fig. 5 is incited somebody to action after squeezing into nail by the second mandril
Nail is elapsed toward intra medullary nail far-end, since the second mandril is detachably connected with the second round bar using screw thread, can be convenient realization top
Into knochenbruch is more bonded, the fixation of intramedullary nail proximal end is then realized by fixed other bone nails.
Further, 120 vertical arm bottom of L bracket is connected and fixed on a rotating mass 130, and rotating mass 130 is around the shaft
The rotation of 110 axial lines.
Further, 110 bottom of shaft is provided with a resilient projection part 117, and resilient projection part 117 is held in rotating mass
130 inner surfaces.
Further, 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 to be reset, it is first
Suitable intramedullary nail is first used, intramedullary nail proximal end is connected and fixed on shaft, since shaft using occlusion and is threadedly coupled fixation,
So the position of intramedullary nail can be accurately positioned, L bracket vertical arm is rotated around intramedullary nail proximal end axis, and L bracket transverse arm
Parallel always with intramedullary nail proximal end axis, locating rod adjusts positioning by sliding block, and locating rod can be fixed on first when fixed
In location hole, realize that a hole is multi-purpose, since intramedullary nail length dimension is certain several specific dimensions, so passing through the circle in locating rod
Connected in star determines length, and locating rod is parallel with intra medullary nail far-end axis and forms the first plane, collimation support again can only be vertical
The direction of straight first plane is mobile, and the second screw hole is parallel to the first plane and vertical intra medullary nail far-end axis with third screw hole
Line, so need to only adjust the first positioning hole on collimation support and development hole, development hole first is confirmed up and down by development stick
Then position is realized by positioning column after location confirmation and is positioned in the front-back direction, since length direction will not become, it is achieved that
The final positioning of intramedullary nail, then by can also be in the other screw holes and location hole had good positioning in advance, including development hole
Nail is squeezed into, drivescrew mutually fixes intra medullary nail far-end with bone, since people's bone left and right directions is different, so on collimation support
It is also right on intramedullary nail provided with the symmetrical third location hole and some other symmetrically arranged location hole for placing the first mandril
Claim to be provided with corresponding screw hole；
After fixing intra medullary nail far-end and bone 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 is held out against knochenbruch by the second mandril, and then L bracket turns to not
The screw of corresponding position is squeezed into position, realizes the fixation of intramedullary nail proximal end and bone.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (10)
1. a kind of multi-direction adjustable fixer in proximal end, which is characterized in that including shaft, intramedullary nail, L bracket, described turn
Axis one end is connected and fixed with the intramedullary nail proximal end, and the other end is rotationally connected with the L bracket vertical arm, the shaft with it is described
The axial line of intramedullary nail proximal end is identical, and the L bracket transverse arm is parallel with the axis of the intramedullary nail proximal end, the L bracket
Vertical arm is rotated around the rotating shaft core line, and the shaft is disposed with N number of positioning close to the one end side of the L bracket
Slot, the L bracket vertical arm offer the anchor window for positioning the positioning groove location, and the intramedullary nail proximal side offers
First screw hole of N number of different directions offers N number of second location hole, the anchor window rotation on the L bracket transverse arm
To when locating slot, the m-th second location hole is identical as the axial line of first screw hole of m-th, described described in m-th
M, N is positive integer, the M≤N.
2. the multi-direction adjustable fixer in proximal end according to claim 1, which is characterized in that the L bracket transverse arm
Including symmetrically arranged two elastic arm, one end away from vertical arm is provided with a lock.
3. the multi-direction adjustable fixer in proximal end according to claim 1, which is characterized in that the L bracket side
Offer N number of wire casing, each wire casing corresponds to each second location hole, the wire casing extending direction and corresponding the
Two pilot hole axes are parallel.
4. the multi-direction adjustable fixer in proximal end according to claim 3, which is characterized in that the second location hole pair
The locating slot and wire casing surface answered are coated with same color, and surface color is different between the different locating slots.
5. the multi-direction adjustable fixer in proximal end according to claim 1, which is characterized in that the L bracket vertical arm
Bottom is connected and fixed on a rotating mass, and the rotating mass is rotated around the rotating shaft core line, and the anchor window is opened in
The rotating mass.
6. the multi-direction adjustable fixer in proximal end according to claim 5, which is characterized in that the shaft outer surface pair
Locating slot array described in Ying Yu offers N number of strip groove, and the strip groove is parallel with the shaft axis, and the locating slot is located at
On the strip groove extension line of the corresponding locating slot, the rotating mass offers the cavity of the receiving shaft, the cavity
Internal successively support is provided with bar shaped and presses button, the first bar shaped shank, the second bar shaped shank from top to bottom, and button and the are pressed in the bar shaped
One bar shaped shank is vertical, and the second bar shaped shank presses that button is parallel, and the second bar shaped shank bottom is contained in the bar shaped
The strip groove, the bar shaped press button one end and convexedly stretch in the rotating mass, and the other end is held in the first spring, first bullet
The spring other end is held in the rotating mass inner surface, and the bar shaped presses button bottom and offers receiving the first bar shaped shank
First groove,
When the bar shaped presses button and is located at first position, the first bar shaped shank is held in the bar shaped and presses button far from described first
One end bottom of groove, the second bar shaped shank are held in the first bar shaped shank bottom, the second bar shaped shank bottom
Portion is supported in the strip groove；
When the bar shaped presses button and is located at the second position, the first bar shaped shank is located at first groove, second bar shaped
Shank is rolled along its axis in the shaft surface.
7. the multi-direction adjustable fixer in proximal end according to claim 6, which is characterized in that the bar shaped is pressed button and is located at
When first position, first spring is in elongation state, when the bar shaped presses button and is located at the second position, at first spring
In compressive state.
8. the multi-direction adjustable fixer in proximal end according to claim 6, which is characterized in that the shaft bottom setting
There is a resilient projection part, the resilient projection part is held in the rotating mass inner surface.
9. the multi-direction adjustable fixer in proximal end according to claim 6, which is characterized in that the shaft appearance towards
First annular supporting surface is protruded out outside, the first annular supporting surface is held in the rotating mass.
10. the multi-direction adjustable fixer in proximal end according to claim 6, which is characterized in that the first bar shaped pin
Body one end is fixedly installed in the rotating mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721591433.4U CN208426202U (en) | 2017-11-24 | 2017-11-24 | The multi-direction adjustable fixer in proximal end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721591433.4U CN208426202U (en) | 2017-11-24 | 2017-11-24 | The multi-direction adjustable fixer in proximal end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208426202U true CN208426202U (en) | 2019-01-25 |
Family
ID=65103863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721591433.4U Expired - Fee Related CN208426202U (en) | 2017-11-24 | 2017-11-24 | The multi-direction adjustable fixer in proximal end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208426202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822704A (en) * | 2017-11-24 | 2018-03-23 | 苏州市康力骨科器械有限公司 | The multi-direction adjustable fixer of near-end |
-
2017
- 2017-11-24 CN CN201721591433.4U patent/CN208426202U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822704A (en) * | 2017-11-24 | 2018-03-23 | 苏州市康力骨科器械有限公司 | The multi-direction adjustable fixer of near-end |
| CN107822704B (en) * | 2017-11-24 | 2024-03-22 | 苏州市康力骨科器械有限公司 | Proximal multi-directional adjustable fixation device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 |