CN209450644U - Hollow nail guider for femur neck - Google Patents
Hollow nail guider for femur neck Download PDFInfo
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- CN209450644U CN209450644U CN201822272132.6U CN201822272132U CN209450644U CN 209450644 U CN209450644 U CN 209450644U CN 201822272132 U CN201822272132 U CN 201822272132U CN 209450644 U CN209450644 U CN 209450644U
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- Prior art keywords
- bar
- guide part
- lantern ring
- locating rod
- hollow nail
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Abstract
The utility model relates to medical instruments fields, aiming to solve the problem that in existing treatment of femoral neck fracture operation needs repeatedly C arm to have an X-rayed, the problem of adjusting guide pin repeatedly, increase surgical procedure difficulty, there is provided hollow nail guider for femur neck comprising adjust base and guiding device；Adjusting base can drive guiding device to be moved to any predeterminated position in three-dimensional space；Guiding device includes the first bar, locating rod, guide part and angle adjusting mechanism；The setting of first bar vertical rotating, locating rod are fixed on the first bar top, and guide part is rotatably dispose in the first bar bottom end, and guide part is provided through multiple pilot holes, and the center line of the axial line of locating rod and one of pilot hole is in same perpendicular.Good position is adjusted under the perspective monitoring of x-ray C arm, guide pin is disposably percutaneously squeezed into suitable position, has liberated the both hands of operative doctor, the exposure of surgical doctor ray is reduced, reduces operating difficulty, perform the operation also more accurate and smooth.
Description
Technical field
The utility model relates to medical instruments fields, in particular to hollow nail guider for femur neck.
Background technique
Minimal invasive techniques are the direction of bone surgery development, Yao Shixian Minimally Invasive Surgery, it is often necessary to good tool auxiliary.It is right
In fracture of neck of femur, closed reduction hollow nail internal fixation is generally used, to reduce wound, promotes patient's post-operative recovery, it can be with
Using in the fixed operation of percutaneous hollow nail, guide pin squeezes into neck of femur through skin, appears near end of thighbone, neck of femur due to not doing notch
Diameter is relatively small, and guide pin is highly precisely squeezed into neck of femur with regard to extremely difficult.
Therefore, the suitable position that guide pin need to be squeezed into neck of femur in the case where C arm has an X-rayed monitoring, is generally once difficult success, needs
Will C arm X-ray perspective repeatedly, adjust the position of guide pin repeatedly, after position suitable, then along guide pin direction to squeeze into hollow screw solid
It is fixed.
It using this kind of mode, wastes time, causes operating time too long, doctor's physical strength crosses consumption, increases surgical staff ray
Exposure, increases the operation difficulty of operation.
Utility model content
The utility model is intended to provide a kind of hollow nail guider for femur neck, to solve existing treatment of femoral neck fracture hand
C arm is needed repeatedly to have an X-rayed in art, the problem of adjusting guide pin repeatedly, increase surgical procedure difficulty.
The embodiments of the present invention are achieved in that
The utility model embodiment provides hollow nail guider for femur neck,
Including adjusting base and guiding device；
Guiding device is set to adjusting base, and it is any in three-dimensional space that adjusting base can drive guiding device to be moved to
Predeterminated position." three-dimensional space " refers to the space being made of three dimensions of length.What the position of point was determined by three coordinates
Space.Appointing in three-dimensional space can be moved to for guiding device by the movement in three X-axis, Y-axis and Z axis directions by adjusting base
The predeterminated position of meaning wherein in X-axis, Y-axis and Z axis, is moved to next axis direction from a upper axis direction (such as X-direction)
(such as Y direction) can make moving for Y direction along the direction perpendicular to X-axis, can also be in the X-axis direction around X-axis
It is rotated with the intersection point of Y-axis, after rotating corresponding angle, completes movement in Y-axis, two ways can be with.It is " any default
Position " guarantees to adjust the position that base can cooperate guiding device accurately to determine guide pin.
Guiding device includes the first bar, locating rod, guide part and angle adjusting mechanism；The setting of first bar vertical rotating, it is fixed
In the top of the first bar, guide part is rotatably dispose in the bottom end of the first bar for position bar cross-fixing, and guide part is provided with guiding cooperation
Face, guide part are provided through multiple pilot holes for being spaced apart and being parallel to each other, and each pilot hole runs through guiding mating surface,
One of pilot hole is center hole and the center for corresponding to guiding mating surface, in the axial line and centre bore of locating rod
For heart line in same perpendicular, the perpendicular where the axial line of locating rod and the center line of pilot hole is to be overlapped plane；
Angle adjusting mechanism can drive guide part being overlapped rotation in surface and be capable of fixing.
Direction is squeezed into a little and squeezed into the mainly determining guide pin of the effect of guiding device, and guide pin is accurately squeezed into femur
Neck.
Operation consent, patient body position set, by the way of lying low, the closed reduction fracture of neck of femur under traction table auxiliary.
Guider is installed, base is adjusted and is fixed on operating bed.Direction is shot by following steps positioning guide pin: firstly, adjusting
It is mobile to save base driving guiding device, makes guide part is mobile to stablize to the position of hip joint, makes the guiding mating surface pair of guide part
The position of quasi- hip joint, mobile by adjusting rotational positioning bar synchronous drive guide part, in C arm anteroposterior position X piece perspective, it is fixed to guarantee
Position rod axis is parallel to neck of femur axis；Then, adjust make the first bar relative to third bar slide, can make in this way locating rod to
Patient's head end or tail end are mobile, and under C arm anteroposterior position X piece perspective, the central axes of guarantee locating rod and neck of femur are located at same vertical
It in plane, and is equivalent on anteroposterior position X-ray film, line overlap in guide part centre bore guide pin direction and neck of femur；Finally, passing through
Under C arm true lateral position X-ray examination, adjustment guide part with respect to patient front-rear position and top rake, first fit angle regulating mechanism,
Being rotated up and down guide part keeps guide part top rake consistent with anteversion of femoral neck, then moves up and down adjustable guiding part by the first bar
Opposite patient's front-rear position, until on the x-ray of neck of femur side position, the guide pin direction of guide part centre bore and neck of femur center line weight
It is folded.It is adjusted by above-mentioned several steps, in neck of femur normotopia and side position x-ray, guide part centre bore guide pin direction is and femur
Then line overlap in neck passes through guiding this ensures that the direction of pilot hole, which is just that neck of femur is most suitable, squeezes into position
Three Kirschner wires (equilateral triangle or up-side down triangle distribution) is made a call in hole, and three Kirschner wire direct transdermals shoot neck of femur, then pass through C arm
X-ray examination determines the position of guide pin, and adjustment guide pin depth is suitable, and appropriate length 7.3mmm hollow screw is selected to fix.Adjusting machine
Seat mainly liberates the both hands of operative doctor, and each C arm X-ray perspective, surgical doctor can be far from field of radiation, and guiding device is logical
The direction of the most suitable guide pin of guide positions is crossed, then guide pin is got to inside neck of femur.
Using C arm photo, guide pin is shot again after realizing the aiming of guide part.Operative doctor does not need hand steered guide pin.One
The direction and position of guide part can quickly be adjusted according to the relative position on X-ray film after secondary adjustment, compared to simple
Hand needs to adjust repeatedly when operation, and adjustment positioning is very fast.
In an embodiment of the present embodiment:
The axis parallel of first bar is in coincidence plane；
Angle adjusting mechanism includes the first lateral shaft and the first locating part；
Locating rod and guide part are respectively positioned on the side of the first bar, are connected between the side of locating rod and the first bar by cross bar
It connects, connected between the side of guide part and the first bar by the first lateral shaft and is fixed by the first locating part.
In an embodiment of the present embodiment:
First lateral shaft is divided into first segment and second segment, and the first locating part includes the first matching piece and the second matching piece；
One end towards first segment of first lateral shaft is connect with guide part, and second segment is thread segment and screw thread is arranged in the first bar；
First matching piece be fixed on guide part towards second segment side and fixing sleeve be set to first segment outside, second
Matching piece be fixed on the first bar towards guide part side and be movably set in the outside of the first lateral shaft, the first matching piece
The end face opposite with the second matching piece is respectively arranged with the cooperating teeth circumferentially around distribution and can engage cooperation.
In an embodiment of the present embodiment:
The axial line of first bar, which is located at, to be overlapped in plane；
Angle adjusting mechanism includes the second lateral shaft and the second locating part；
The middle part of guide part is rotatably dispose in the bottom of the first bar by the second lateral shaft and is consolidated by the second locating part
It is fixed.
In an embodiment of the present embodiment:
The bottom end of first bar is provided with downward opening U-lag, be placed in the middle part of guide part in U-lag and two sides respectively with
The cell wall of U-lag passes through the second lateral shaft rotation connection；
Second locating part include be set to U-lag lateral wall and annular space distribution multiple limiting slots, and with pass through U
The rotor plate of one of them the second lateral roller end connection of shape groove groove wall, rotor plate is provided with can be with limiting slot cooperation
Fixing piece.
In an embodiment of the present embodiment:
Adjusting base includes fixing seat, the second bar and third bar；
Second bar is parallel to the setting of the first bar and is fixed on fixing seat；Third bar is arranged perpendicular to the second bar and one end and the
It is connected between two bars by the first bindiny mechanism, to realize that third bar can be made axially to move back and forth and can consolidate along the second bar
It is fixed, and realize that third bar can rotate in a circumferential direction and be capable of fixing around the second bar；Pass through second between third bar and the first bar
Bindiny mechanism's connection to realize that the first bar can be made axially to move back and forth and be capable of fixing along third bar, and realizes first
Bar can rotate.
In an embodiment of the present embodiment:
First bindiny mechanism includes the first bolt that the first lantern ring and screw thread are arranged in the first lantern ring；
First lantern ring is fixed on one end of third bar and sliding sleeve is set to the outside of the second bar.
In an embodiment of the present embodiment:
Second bindiny mechanism includes that the second lantern ring, screw thread are arranged in the second bolt, third lantern ring and screw thread of the second lantern ring
It is arranged in the third bolt of third lantern ring；
Second lantern ring, which slides axially, is sheathed on the outside of third bar, and third lantern ring is fixed on the second lantern ring, and the first bar is circumferential
Rotation is arranged in the second lantern ring.
In an embodiment of the present embodiment:
It is connected between second lantern ring and third lantern ring by connecting rod.
In an embodiment of the present embodiment:
Pilot hole is arranged seven, and six of them pilot hole is divided into symmetrically arranged two rows of guiding groups, each guiding group packet
Spaced three pilot holes are included, a remaining pilot hole is center hole and is located between two guiding groups.
The beneficial effects of the utility model are:
Hollow nail guider for femur neck is adjusted the position of guide part under the perspective monitoring of x-ray C arm, that is, is regulated
Guide pin is disposably squeezed into the suitable position of neck of femur by the position of pilot hole, without repeatedly adjusting guide pin repeatedly, simplifies operation
Step, improves the accuracy of surgical procedure, while having liberated the both hands of operative doctor, and operation is made to be able to carry out more smooth
And success.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is that the overall structure of the first structure of hollow nail guider for femur neck provided by the embodiment of the utility model is shown
It is intended to；
Fig. 2 is the guiding device in hollow nail guider for femur neck shown in FIG. 1 provided by the embodiment of the utility model
Side view；
Fig. 3 is the guiding device in hollow nail guider for femur neck shown in FIG. 1 provided by the embodiment of the utility model
Side view；
Fig. 4 is the partial enlarged view of A in Fig. 3 provided by the embodiment of the utility model；
Fig. 5 be Fig. 3 provided by the embodiment of the utility model in the first matching piece and the second matching piece in cooperating teeth knot
Structure schematic diagram；
Fig. 6 is that the overall structure of second of structure of hollow nail guider for femur neck provided by the embodiment of the utility model is shown
It is intended to.
Icon: 100- adjusts base；101- fixing seat；The second bar of 102-；103- third bar；The first bindiny mechanism of 110-；
The first lantern ring of 111-；The first bolt of 112-；The second bindiny mechanism of 120-；The second lantern ring of 121-；The second bolt of 122-；123- third
Lantern ring；124- third bolt；200- guiding device；The first bar of 210-；211-U shape slot；220- locating rod；230- guide part；
231- is oriented to mating surface；232- pilot hole；240- angle adjusting mechanism；The lateral shaft of 250- first；251- first segment；252-
Two sections；The first locating part of 260-；The first matching piece of 261-；The second matching piece of 262-；263- cooperating teeth；270- cross bar；280-
Two lateral shafts；The second locating part of 290-；291- limiting slot；292- rotor plate；293- fixing piece.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if occur term " center ", "upper", "lower", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on the figure or position
Relationship or the utility model product using when the orientation or positional relationship usually put, be merely for convenience of describing this reality
It is described with novel with simplified, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.If in addition, occurring in the description of the utility model
Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
If being not offered as requiring component in addition, occurring the terms such as term "horizontal", "vertical" in the description of the utility model
Abswolute level or pendency, but can be slightly tilted.If "horizontal" only refers to that its direction is more horizontal with respect to for "vertical",
It is not to indicate that the structure is had to fully horizontally, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, if there is art
Language " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, " connection " may be a fixed connection, be also possible to
It is detachably connected, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also lead to
It crosses intermediary to be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be with
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment, referring to figs. 1 to Fig. 6.
As shown in Figure 1, the utility model embodiment provides hollow nail guider for femur neck, including adjusts base 100 and lead
To device 200；Guiding device 200, which is set to, adjusts base 100, and adjusting base 100 can drive guiding device 200 to be moved to three
Any predeterminated position in dimension space.
" three-dimensional space " refers to the space being made of three dimensions of length.What the position of point was determined by three coordinates
Space.Three-dimensional space can be moved to for guiding device 200 by the movement of three X-axis, Y-axis and Z axis directions by adjusting base 100
Interior arbitrary predeterminated position wherein in X-axis, Y-axis and Z axis, is moved to next from a upper axis direction (such as X-direction)
Axis direction (such as Y direction) can make moving for Y direction along the direction perpendicular to X-axis, can also be in the X-axis direction
Intersection point around X-axis and Y-axis rotates, and after rotating corresponding angle, completes movement in Y-axis, and two ways can be with.
" any predeterminated position " guarantees to adjust the position that base 100 can cooperate guiding device 200 accurately to determine guide pin.
As shown in Figure 1, in an embodiment of the present embodiment: adjusting base 100 includes fixing seat 101, the second bar
102 and third bar 103；Second bar 102 is parallel to the setting of the first bar 210 and is fixed on fixing seat 101；Third bar 103 perpendicular to
Second bar 102 is arranged and is connected between one end and the second bar 102 by the first bindiny mechanism 110, to realize that third bar 103 can
Make axially to move back and forth and be capable of fixing along the second bar 102, and realizes that third bar 103 can make circumferential direction around the second bar 102
It rotates and is capable of fixing；It is connected between third bar 103 and the first bar 210 by the second bindiny mechanism 120, to realize the first bar
210 can make axially to move back and forth and be capable of fixing along third bar 103, and realize that the first bar 210 can rotate.
Fixing seat 101 is mainly used for being fixed on edge of bed.Second bar 102 and the movement of third bar 103 are able to drive guiding
200 synchronizing moving of device.First bar 210 is set to third bar 103 by the second bindiny mechanism 120, and third bar 103 passes through first
Bindiny mechanism 110 is set to the second bar 102；Third bar 103 is moved up and down and is circumferentially rotated along the second bar 102, synchronous drive
First bar 210 is moved up and down and is circumferentially rotated in guiding device 200, and the first bar 210 is moved back and forth along third bar 103,
230 transverse shifting of synchronous drive guide part.Therefore, the axial movement of guide part 230 moved superimposed on along the second bar 102
The axial movement for circumferentially rotating (generation X-direction is mobile) and third bar 103 of (it is mobile to generate Z-direction), the second bar 102
(it is mobile to generate Y direction), therefore, under the action of adjusting base 100, guide part 230 can be moved to the hip joint of patient
At position, and it can make to be aligned on the outside of the guiding mating surface 231 of guide part 230 and neck of femur.Complete preoperative just step
Set adjustment.
As shown in Figure 1, in an embodiment of the present embodiment: the first bindiny mechanism 110 includes 111 He of the first lantern ring
Screw thread is arranged in the first bolt 112 of the first lantern ring 111；First lantern ring 111 is fixed on one end of third bar 103 and sliding is arranged
In the outside of the second bar 102.
Third bar 103 is able to drive the first lantern ring 111 and moves up and down and along the axial direction of the second bar 102 around second
The axial line of bar 102 rotates in a circumferential direction, and the first bolt 112 rotation rear end can resist the second bar 102, by the first lantern ring 111
It is fixed on the second bar 102, so that the relative position between third bar 103 and the second bar 102 is fixed.
As shown in Figure 1, in an embodiment of the present embodiment: the second bindiny mechanism 120 include the second lantern ring 121,
The second bolt 122, third lantern ring 123 and the screw thread that screw thread is arranged in the second lantern ring 121 are arranged in the third spiral shell of third lantern ring 123
Bolt 124；Second lantern ring 121, which slides axially, is sheathed on the outside of third bar 103, and third lantern ring 123 is fixed on the second lantern ring 121,
First bar 210, which circumferentially rotates, is arranged in the second lantern ring 121.
Second lantern ring 121 is moved axially along third bar 103, drives third lantern ring 123 and the first bar 210 along third bar
103 axial movements fix the second lantern ring 121 by the second bolt 122, and the first bar 210 is solid relative to the position of third bar 103
It is fixed.First bar 210 rotates in third lantern ring 123 around self-axis line, realizes that locating rod 220 is synchronous with guide part 230
Rotation.In an embodiment of the present embodiment: being connected between the second lantern ring 121 and third lantern ring 123 by connecting rod.
As shown in Fig. 2, in an embodiment of the present embodiment: guiding device 200 includes the first bar 210, locating rod
220, guide part 230 and angle adjusting mechanism 240；The setting of first bar, 210 vertical rotating, 220 cross-fixing of locating rod is in first
The top of bar 210, guide part 230 are rotatably dispose in the bottom end of the first bar 210, and guide part 230 is provided with guiding mating surface 231,
Guide part 230 is provided through multiple pilot holes 232 for being spaced apart and being parallel to each other, and each pilot hole 232 is through guiding
Mating surface 231, one of pilot hole 232 are center hole and the center for corresponding to guiding mating surface 231, locating rod 220
Axial line and centre bore center line in same perpendicular, the axial line of locating rod 220 and the center line of pilot hole 232
The perpendicular at place is to be overlapped plane；Angle adjusting mechanism 240 can drive guide part 230 being overlapped rotation in surface and energy
It is enough fixed.
Direction is squeezed into a little and squeezed into the mainly determining guide pin of the effect of guiding device 200, and guide pin is accurately squeezed into stock
Bone neck.
Operation consent, patient body position set, by the way of lying low.At this point, neck of femur is not in the horizontal plane, where neck of femur
Plane and bed surface between have the top rakes of an about fifteen degrees, therefore, guide part 230 will not only carry out the rotation in horizontal plane
Turn, also to carry out the rotation in perpendicular, pilot hole 232 can be made to be accurately aligned with the position of neck of femur in this way.
It drives guiding device 200 mobile firstly, adjusting base 100, makes guide part 230 is mobile to stablize to the position of hip joint
It sets, the guiding mating surface 231 of guide part 230 is made to be directed at the position of hip joint, such operative doctor can leave operative region, into
Row C arm photo begins through the position of adjustment locating rod 220 and guide part 230, determines the suitable position of guide pin.It was adjusting
Cheng Zhong can be put into Kirschner wire in pilot hole 232, on C arm X-ray film, the direction of Kirschner wire and the side for representing pilot hole 232
To.
Then, mobile by adjusting 220 synchronous drive guide part 230 of rotational positioning bar, in C arm anteroposterior position X piece perspective, protect
Card 220 axis of locating rod is parallel to neck of femur axis；Then, adjusting slides the first bar 210 relative to third bar 103, in this way
Locating rod 220 can be made mobile to patient's head end or tail end, under C arm anteroposterior position X piece perspective, guarantee locating rod 220 and neck of femur
Central axes be located on same perpendicular, and be equivalent on anteroposterior position X-ray film, 230 centre bore guide pin direction of guide part with
Line overlap in neck of femur；Finally, by under C arm true lateral position X-ray examination, front-rear position of the adjustment guide part 230 with respect to patient
And top rake, first fit angle regulating mechanism 240 are rotated up and down guide part 230 and make 230 top rake of guide part and femur anticollis
Angle is consistent, then moves up and down adjustable guiding part 230 with respect to patient's front-rear position, until in neck of femur side position X by the first bar 210
On line, the guide pin direction of 230 centre bore of guide part and neck of femur center line overlap.It is adjusted by above-mentioned several steps, in femur
Neck normotopia and side position x-ray on, 230 centre bore guide pin direction of guide part with line overlap in neck of femur, this ensures that guiding
The direction in hole 232, which is just that neck of femur is most suitable, squeezes into position.
After in the direction that pilot hole 232 has been determined, to be just that neck of femur is most suitable squeeze into position, beaten by pilot hole 232
Enter Kirschner wire, Kirschner wire direct transdermal skin is through the most suitable position of that neck of femur.Guide pin is through the most suitable position of neck of femur
After setting, then by the position of the determining guide pin once of C arm photo, the position of guide pin is determined in place, then hollow
Screw is got to inside neck of femur by this guide pin.Adjusting base 100 is mainly the both hands for liberating operative doctor, guiding device
200 position the direction of most suitable guide pin by guide part 230, and then guide pin is got to inside neck of femur.
Using C arm photo, have an injection again after realizing the aiming of guide part 230.Operative doctor does not need hand steered guide pin.Once
Adjustment after can be broken forth according to photo come position, then quickly adjust guide part 230 a direction and position, compare
It needs to adjust repeatedly when simple hand operation, adjustment positioning is very fast.
The center line of one of pilot hole 232 of locating rod 220 and guide part 230 is fixed in the same perpendicular
Setting between position bar 220, guide part 230 and the first bar 210 can use mode below.
As shown in figure 3, in an embodiment of the present embodiment: the axis parallel of the first bar 210 is in coincidence plane；
Angle adjusting mechanism 240 includes the first lateral shaft 250 and the first locating part 260；Locating rod 220 and guide part 230 are respectively positioned on
The side of first bar 210 is connected between the side of locating rod 220 and the first bar 210 by cross bar 270, the side of guide part 230
It is connect between the first bar 210 by the first lateral shaft 250 and is fixed by the first locating part 260.
In guide part 230 after the first locating part 260 is fixed, the length of the first lateral shaft 250 and cross bar 270 can be protected
The center line of a pilot hole 232 in guide part 230 and the axial line of locating rod 220 are demonstrate,proved in the same perpendicular.?
After 270 length of cross bar determines, 220 position of locating rod is determined, according to position of the guide part 230 after fixed, design first laterally turns
The gap length between guide part 230 and the first bar 210 after axis 250 is fixed.
In an embodiment of the present embodiment:
As shown in Figure 4 and Figure 5, the first lateral shaft 250 is divided for first segment 251 and second segment 252, the first locating part 260
Including the first matching piece 261 and the second matching piece 262；One end towards first segment 251 of first lateral shaft 250 and guide part
230 connections, second segment 252 is thread segment and screw thread is arranged in the first bar 210；
First matching piece 261 be fixed on guide part 230 towards second segment 252 side and fixing sleeve be set to first segment
251 outside, the second matching piece 262 be fixed on the first bar 210 towards guide part 230 side and be movably set in first cross
To the outside of shaft 250, the first matching piece 261 and the opposite end face of the second matching piece 262 are respectively arranged with circumferentially around distribution
Cooperating teeth 263 and cooperation can be engaged.
252 positive and negative rotation of second segment, guide part 230 and the first matching piece 261 make the movement close to and far from the first bar 210,
Using second segment 252, guide part 230 and the first matching piece 261 are furthered the first bar 210, the first matching piece 261 and second is matched
The cooperating teeth 263 of component 262 cooperates；When being moved to the first matching piece 261 and the second matching piece 262 and cooperating, first segment 251 with
The cooperation of first bar 210, first segment 251 can rotate in a circumferential direction, and drive the rotation of the first matching piece 261, make matching for the first matching piece 261
The cooperation of the realization different location of cooperating teeth 263 of tooth 263 and the second matching piece 262 is closed, to realize the first matching piece 261 and guiding
The angular adjustment of part 230 and fixation；Since cooperating teeth 263 is along the week of the end face of the first matching piece 261 and the second matching piece 262
It is arranged to direction, therefore, the different location of cooperating teeth 263 cooperates, and can be realized the adjusting of angle, utilizes the spiral shell of second segment 252
Line connection can make the first matching piece 261 and the second matching piece 262 after the cooperation of any position of cooperating teeth 263 and fixed.
Regardless of the first matching piece 261 and the second matching piece 262 cooperating teeth 263 where cooperation, in the first cooperation
After part 261 and the cooperation of the second matching piece 262, one of pilot hole 232 of the axial line and guide part 230 of locating rod 220
Center line is always in the same perpendicular.
In an embodiment of the present embodiment: can also be in the cooperation of the first matching piece 261 and the second matching piece 262
Scale is arranged in the edge of tooth 263, with the angle for facilitating observation and the first matching piece 261 of adjusting to rotate relative to the second matching piece 262
Degree.
As shown in fig. 6, in an embodiment of the present embodiment: the axial line of the first bar 210, which is located at, to be overlapped in plane；
Angle adjusting mechanism 240 includes the second lateral shaft 280 and the second locating part 290；The middle part of guide part 230 is lateral by second
Shaft 280 is rotatably dispose in the bottom of the first bar 210 and is fixed by the second locating part 290.
Locating rod 220 and guide part 230 are all set in the first bar 210.The axis of the axial line of locating rod 220, the first bar 210
The center line of one of pilot hole 232 of heart line and guide part 230 is in the same perpendicular.The axle center of locating rod 220
The intersection of the axial line extended line of line and the first bar 210, the axial line extended line of the first bar 210 and one of pilot hole 232
Center line intersection.Compared to the side that locating rod 220 and guide part 230 are set to the first bar 210, in present embodiment, locating rod
220 are set to the top of the first bar 210, and guide part 230 is set to the bottom of the first bar 210.
As shown in fig. 6, in an embodiment of the present embodiment: the bottom end of the first bar 210 is provided with downward opening U
Shape slot 211, the middle part of guide part 230 is placed in U-lag 211 and two sides laterally turn with the cell wall of U-lag 211 by second respectively
Axis 280 is rotatablely connected；Second locating part 290 includes the multiple limiting slots for being set to 211 lateral wall of U-lag and annular space distribution
291, and the rotor plate 292 being connect with one of them second 280 end of lateral shaft for passing through 211 cell wall of U-lag, rotor plate
292 are provided with the fixing piece 293 that can cooperate with limiting slot 291.The extended line of the axial line of first bar 210 passes through U-lag
211。
In an embodiment of the present embodiment: the first engaging lug is arranged in the bottom of the first bar 210, and guide part 230 is set
The second engaging lug is set, the second lateral shaft 280 passes through the first engaging lug and the second engaging lug.
As shown in fig. 6, in an embodiment of the present embodiment: pilot hole 232 is arranged seven, six of them pilot hole
232 are divided into symmetrically arranged two rows of guiding group, and each guiding group includes spaced three pilot holes 232, and remaining one
A pilot hole 232 is located between two guiding groups.
The guide pin layout type of each operative doctor may be different, and using the layout of seven pilot holes 232, operative doctor can
To make adjustment appropriate.Seven pilot holes 232 can be combined into equilateral triangle layout, up-side down triangle layout or lead two
Central guide pin is squeezed into hole centered on the pilot hole 232 between group.
As shown in fig. 6, in an embodiment of the present embodiment: guide part 230 be in prism-shaped, the one of guide part 230
End is set as guiding mating surface 231, and guiding mating surface 231 is inclined surface.In an embodiment of the present embodiment: guide part
230 use quadrangular.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of hollow nail guider for femur neck, it is characterised in that:
Including adjusting base and guiding device；
The guiding device is set to the adjusting base, and the adjusting base can drive the guiding device to be moved to three-dimensional
Any predeterminated position in space；
The guiding device includes the first bar, locating rod, guide part and angle adjusting mechanism；The first bar vertical rotating is set
It sets, in the top of first bar, the guide part is rotatably dispose in the bottom end of first bar for the locating rod cross-fixing,
The guide part is provided with guiding mating surface, and the guide part is provided through multiple guiding for being spaced apart and being parallel to each other
Hole, each pilot hole run through the guiding mating surface, one of them described pilot hole is center hole and corresponds to described
Be oriented to the center of mating surface, the center line of the axial line of the locating rod and the centre bore in same perpendicular,
Perpendicular where the center line of the axial line of the locating rod and the pilot hole is to be overlapped plane；The angular adjustment machine
Structure can drive the guide part in the coincidence rotation in surface and be capable of fixing.
2. hollow nail guider for femur neck according to claim 1, it is characterised in that:
The axis parallel of first bar is in the coincidence plane；
The angle adjusting mechanism includes the first lateral shaft and the first locating part；
The locating rod and the guide part are respectively positioned on the side of first bar, the side of the locating rod and first bar
Between connected by cross bar, by the first lateral shaft connection and pass through institute between the side of the guide part and first bar
The first locating part is stated to fix.
3. hollow nail guider for femur neck according to claim 2, it is characterised in that:
Described first lateral shaft is divided into first segment and second segment, and first locating part includes the first matching piece and the second cooperation
Part；One end towards the first segment of described first lateral shaft is connect with the guide part, and the second segment is thread segment
And screw thread is arranged in first bar；
First matching piece be fixed on the guide part towards the second segment side and fixing sleeve be set to described first
The outside of section, second matching piece be fixed on first bar towards the guide part side and be movably set in described
The outside of first lateral shaft, first matching piece and the opposite end face of second matching piece be respectively arranged with circumferentially around
The cooperating teeth of distribution and cooperation can be engaged.
4. hollow nail guider for femur neck according to claim 1, it is characterised in that:
The axial line of first bar is located in the coincidence plane；
The angle adjusting mechanism includes the second lateral shaft and the second locating part；
The middle part of the guide part is rotatably dispose in the bottom of first bar by the described second lateral shaft and passes through described
Second locating part is fixed.
5. hollow nail guider for femur neck according to claim 4, it is characterised in that:
The bottom end of first bar is provided with downward opening U-lag, is placed in the U-lag in the middle part of the guide part and two
Side is rotatablely connected with the cell wall of the U-lag by the described second lateral shaft respectively；
Second locating part includes the multiple limiting slots for being set to the U-lag lateral wall and annular space distribution, Yi Jiyu
Across the rotor plate of one of them the described second lateral roller end connection of the U-lag cell wall, the rotor plate is provided with
The fixing piece that can cooperate with the limiting slot.
6. hollow nail guider for femur neck as claimed in any of claims 1 to 5, it is characterised in that:
The adjusting base includes fixing seat, the second bar and third bar；
Second bar is parallel to the first bar setting and is fixed on the fixing seat；The third bar is perpendicular to described second
Bar is arranged and is connected between one end and second bar by the first bindiny mechanism, to realize that the third bar can be along described
Second bar make it is axial moves back and forth and is capable of fixing, and realize the third bar can rotate in a circumferential direction around second bar and
It is capable of fixing；It is connected between the third bar and first bar by the second bindiny mechanism, to realize that first bar can
Make axially to move back and forth and be capable of fixing along the third bar, and realizes that first bar can rotate.
7. hollow nail guider for femur neck according to claim 6, it is characterised in that:
First bindiny mechanism includes the first bolt that the first lantern ring and screw thread are arranged in first lantern ring；
First lantern ring is fixed on one end of the third bar and sliding sleeve is set to the outside of second bar.
8. hollow nail guider for femur neck according to claim 6, it is characterised in that:
Second bindiny mechanism include the second lantern ring, screw thread be arranged in the second bolt of second lantern ring, third lantern ring and
Screw thread is arranged in the third bolt of the third lantern ring；
Second lantern ring, which slides axially, is sheathed on the outside of the third bar, and the third lantern ring is fixed on described second set
Ring, first bar, which circumferentially rotates, is arranged in second lantern ring.
9. hollow nail guider for femur neck according to claim 8, it is characterised in that:
It is connected between second lantern ring and the third lantern ring by connecting rod.
10. hollow nail guider for femur neck according to claim 1, it is characterised in that:
The pilot hole is arranged seven, and pilot hole described in six of them is divided into symmetrically arranged two rows of guiding groups, each described
Guiding group includes spaced three pilot holes, and a remaining pilot hole is the centre bore and is located at two
Between the guiding group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272132.6U CN209450644U (en) | 2018-12-30 | 2018-12-30 | Hollow nail guider for femur neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272132.6U CN209450644U (en) | 2018-12-30 | 2018-12-30 | Hollow nail guider for femur neck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209450644U true CN209450644U (en) | 2019-10-01 |
Family
ID=68043422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822272132.6U Expired - Fee Related CN209450644U (en) | 2018-12-30 | 2018-12-30 | Hollow nail guider for femur neck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209450644U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113303866A (en) * | 2021-06-04 | 2021-08-27 | 中南大学湘雅医院 | Thighbone near-end kirschner wire drilling location and many needles drilling auxiliary device |
| CN113693702A (en) * | 2021-09-03 | 2021-11-26 | 邓迎生 | Head-on femoral neck hollow nail placing system based on individualized safety boundary |
| CN113796943A (en) * | 2021-05-12 | 2021-12-17 | 蚌埠医学院第一附属医院（蚌埠医学院附属肿瘤医院） | Femoral Kirschner wire positioning and adjusting device |
| CN116407277A (en) * | 2023-04-13 | 2023-07-11 | 博志生物科技(深圳)有限公司 | Passive operation support positioning system and positioning method |
-
2018
- 2018-12-30 CN CN201822272132.6U patent/CN209450644U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113796943A (en) * | 2021-05-12 | 2021-12-17 | 蚌埠医学院第一附属医院（蚌埠医学院附属肿瘤医院） | Femoral Kirschner wire positioning and adjusting device |
| CN113796943B (en) * | 2021-05-12 | 2023-11-10 | 蚌埠医学院第一附属医院（蚌埠医学院附属肿瘤医院） | Femur Kirschner wire positioning and adjusting device |
| CN113303866A (en) * | 2021-06-04 | 2021-08-27 | 中南大学湘雅医院 | Thighbone near-end kirschner wire drilling location and many needles drilling auxiliary device |
| CN113303866B (en) * | 2021-06-04 | 2022-05-10 | 中南大学湘雅医院 | Thighbone near-end kirschner wire drilling location and many needles drilling auxiliary device |
| CN113693702A (en) * | 2021-09-03 | 2021-11-26 | 邓迎生 | Head-on femoral neck hollow nail placing system based on individualized safety boundary |
| CN113693702B (en) * | 2021-09-03 | 2022-08-16 | 邓迎生 | Head-on femoral neck hollow nail placing system based on individualized safety boundary |
| CN116407277A (en) * | 2023-04-13 | 2023-07-11 | 博志生物科技(深圳)有限公司 | Passive operation support positioning system and positioning method |
| CN116407277B (en) * | 2023-04-13 | 2023-12-19 | 博志生物科技(深圳)有限公司 | Passive operation support positioning system and positioning method |
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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: 20191001 Termination date: 20211230 |