CN207886269U - Pedicle nail lifts component - Google Patents
Pedicle nail lifts component Download PDFInfo
- Publication number
- CN207886269U CN207886269U CN201720769989.1U CN201720769989U CN207886269U CN 207886269 U CN207886269 U CN 207886269U CN 201720769989 U CN201720769989 U CN 201720769989U CN 207886269 U CN207886269 U CN 207886269U
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- Prior art keywords
- slot
- nail
- locking sleeve
- sleeve
- button
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of pedicle nail lifting component,Including pedicle nail and lifting restorer,Pedicle nail includes that nail covers,Nail set has axially extending bore,The head of intermediate and button is located at the inside of axially extending bore,The head of button is located at the lower section of intermediate,The lower end of intermediate has the second slot compatible with the head of button,It includes sleeve body to lift restorer,First locking sleeve and the second locking sleeve,First locking sleeve and the second locking sleeve are respectively sleeved at the outside of sleeve body,And the first locking sleeve and the second locking sleeve can be rotated mutually,One end of sleeve body has clamping part,Clamping part is for being clamped nail set,Second locking sleeve is threadedly coupled with sleeve body,By rotating the second locking sleeve,Sleeve body is set to be moved along the axis direction of the second locking sleeve,When sleeve body has the opposite extreme direction movement of clamping part towards sleeve body,Realize the locking of pedicle nail.
Description
Technical field
The utility model is related to a kind of pedicle nails to lift component.
Background technology
With the development of biomechanics Research and material science, the application of Internal fixation technology is more and more extensive, is moved back in backbone
Row disease, tumor of spine, wound in the operative treatments such as Spondylitis so that be widely applied.Internal fixation technology application
Spinal reduction device is treated, and spinal reduction device includes mainly pitman and pedicle nail, and the rivet nut of pedicle nail is planted
Entering intraspinal, is fixed with backbone, the nail set connection pitman of pedicle nail adjusts the distance between pedicle nail and angle, then
Pitman and corresponding pedicle nail are locked, achievees the purpose that treatment.
It is whether adjustable according to angle between the nail of pedicle nail set and rivet nut, common pedicle nail and universal can be divided into
Pedicle nail.It is easy to operate due to Universal vertebra arch root screw adjustable angle, it is widely used in clinicing aspect.
Wherein, Universal vertebra arch root screw includes nail set, locking jackscrew, intermediate and button, and nail set is staple set, that is, is followed closely
There is set U-shaped hole, the U-shaped hole to run through for pitman, in addition, there is nail set axially extending bore, nail set bottom to be arranged with intermediate,
Intermediate lower end has the slot that be adapted to the bulb of button, i.e. slot is in spherical, the bulb of button can in snapping into position in slots,
In addition, the bottom of nail set has the protrusion extended inward, which can limit button and fall off from the bottom of nail set, i.e., intermediate
Body and nail set, which exist with the bulb of button, to be contacted.
Assembling process is as follows：First, button is encased in from nail set top in axially extending bore, secondly, intermediate is filled
Enter in axially extending bore, intermediate is located at the top of button, then pitman is passed through U-shaped hole, finally, by the position of pedicle nail
It after being adjusted with angle, is locked using locking jackscrew, which has the external screw thread being adapted to nail set internal thread, with locking
Jackscrew gradually screws, and pitman is lock onto in U-shaped hole, and pitman applies downwards intermediate under the action of locking jackscrew
Active force, then during locking, button is also pressed in the bottom of axially extending bore by intermediate, to realize pitman and
The compression of pedicle nail.
By the above process it is found that above-mentioned nail set plays holding, the positioning action of pedicle nail in the course of surgery, pass through
Its distinctive hollow channel can guide other instruments that casing is passed through to realize the rotation to pedicle nail under the premise of tiny incisions
Enter, fix, lifting reset, pitman resets and locking jackscrew such as screws at some operations.It is numerous but there are still operating process at present
The shortcomings of trivial and flexibility is weaker, increases the operation difficulty of operation.
Utility model content
The utility model solves the problems, such as that the technical solution of above-mentioned insufficient sum in the prior art is：Provide a kind of operation letter
Single easily pedicle nail lifts component.
To achieve the above objectives, the utility model provides a kind of pedicle nail lifting component, including pedicle nail and carries
Draw restorer；
The pedicle nail includes nail set, intermediate and button, and the nail set has axially extending bore, the axially extending bore
Upper end inner wall there is internal thread, the head of the intermediate and the button to be located at the inside of the axially extending bore,
And the head of the button is located at the lower section of the intermediate, wherein the lower end of the intermediate has and the button
Compatible second slot in head；
The lifting restorer includes sleeve body, the first locking sleeve and the second locking sleeve, first lock sleeve
Cylinder and second locking sleeve are respectively sleeved at the outside of described sleeve pipe ontology, and first locking sleeve and described the
Two locking sleeves can be rotated mutually, and one end of sleeve body has clamping part, and the clamping part is for being clamped the nail set, institute
The opposite end for stating the second locking sleeve and first locking sleeve has one end of clamping part, and institute towards described sleeve pipe ontology
It states the second locking sleeve to be threadedly coupled with described sleeve pipe ontology, by rotating second locking sleeve, makes described sleeve pipe ontology
Moved along the axis direction of second locking sleeve, when described sleeve pipe ontology towards described sleeve pipe ontology have clamping part phase
When opposite ends direction is moved, i.e., described sleeve pipe ontology lifts the nail set, and then realizes the locking of the pedicle nail.
Further, it is provided with the 5th slot coordinated with the clamping part on the outer wall of the nail set；
The clamping part includes two clamping limbs, and the clamping limb includes anchor ear and shrapnel, and the anchor ear connects the bullet
There is a protrusion, the protrusion to be used to coordinate with the 5th slot for piece, the opposite end that the shrapnel connects the anchor ear, described armful
Cuff is located on described sleeve pipe ontology, and one end of the shrapnel Connection protrusion has the one of clamping part towards described sleeve pipe ontology
End, also, there is the limit hole coordinated with the shrapnel on described sleeve pipe ontology.
Further, the axially extending bore lower end have the first slot compatible with the head of the button, described first
Slot is located at the lower section of second slot, and first slot is for preventing the button from being skidded off from the axially extending bore lower end.
Further, the pedicle nail further includes damping ring, and the damping ring is located at the head of the button and described
There is the third slot of the fixed damping ring between first slot, on first slot.
Further, the notch for expanding the button rotational angle is additionally provided on first slot.
Further, first slot includes first annular slot, and the first annular slot is circumferentially set along the axially extending bore
It sets, the end face of the first annular slot to nail set lower end is an inclined-plane, and the inclined-plane is adapted with the intermediate lower end；
The axially extending bore diameter on the nail set lower end surface is more than the diameter on the head of the button, is convenient for institute
The head for stating button is inserted into from nail set lower end in the second slot of the intermediate lower end；
Several 6th slots are provided on the outer wall of the intermediate, the 6th slot faces upward from the lower end of the intermediate
Extend.
Further, the intermediate is made of six aluminium of titanium, four vanadium material.
Further, the lifting restorer further includes the first pin, has fixed described the on first locking sleeve
First hole of one pin, the axis perpendicular of the axis in first hole and first locking sleeve, second lock sleeve
Cylinder one end is set in inside first locking sleeve, and one second annular groove, second annular are provided on the outer wall at the end
Slot is circumferentially disposed along second locking sleeve, when first pin is fixed in first hole, first pin
Son is located in the second annular groove, makes first locking sleeve and second locking sleeve that axial displacement not occur, and only occurs
Mutually rotation.
Further, the lifting restorer further includes the second pin, has fixed described the on first locking sleeve
Second hole of two pins, the axis perpendicular of the axis in second hole and first locking sleeve, when second pin
When being fixed in second hole, there is the limiting slot coordinated with second pin on described sleeve pipe ontology, make described first
Lock sleeve and described sleeve pipe ontology do not occur mutually to rotate, and axial displacement only occurs.
Further, the axis in second hole and the axis in first hole can be perpendicular.
According to preferred embodiment, the utility model offers the advantage that：
The clamping part of the utility model sleeve body can make casing for clamping workpiece by rotating the second locking sleeve
Ontology is moved along the axis direction of the second locking sleeve, realizes the pull lift action of nail set, and then realizes pedicle nail
Locking, it is easy to operate and simple in structure.
Description of the drawings
Fig. 1 is the structural schematic diagram that pedicle nail described in the utility model lifts component；
Fig. 2 is the structural schematic diagram of pedicle nail first embodiment described in the utility model；
Fig. 3 states pedicle nail axial sectional view for Fig. 2's；
The structural schematic diagram that the nail that Fig. 4 is Fig. 2 covers；
The axial sectional view that the nail that Fig. 5 is Fig. 2 covers；
Fig. 6 is the structural schematic diagram of the intermediate of Fig. 2；
Fig. 7 is the structural schematic diagram of the button of Fig. 2；
Fig. 8 is the explosive view of lifting restorer described in the utility model；
Fig. 9 is the structural schematic diagram of lifting restorer described in the utility model；
Figure 10 is the structural schematic diagram of clamping limb described in the utility model；
Figure 11 is the structural schematic diagram of sleeve body described in the utility model；
Figure 12 is the structural schematic diagram of the first locking sleeve described in the utility model；
Figure 13 is the structural schematic diagram of pedicle nail second embodiment described in the utility model；
Figure 14 is the structural schematic diagram of the intermediate of Figure 13；
Figure 15 is the axial sectional view of the intermediate of Figure 13.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.
First embodiment
As shown in Figure 1, pedicle nail lifting component includes pedicle nail 100 and lifting restorer 200.
As shown in Fig. 2, pedicle nail 100 includes nail set 110, intermediate 120, pitman 130, locking jackscrew 140 and ball
Head nail 150.With reference to figure 3 to Fig. 5, there is nail set 110 axially extending bore 111, nail set 110 can take the shape of the letter U, i.e., axially extending bore 111 is upper
End is the first U-shaped hole 112, and the insertion of pitman 130, the upper end inner wall of axially extending bore 111 is convenient for also to have internal thread 113, can
To coordinate with locking jackscrew 140, it is arranged with intermediate 120 in axially extending bore 111,111 lower end of axially extending bore has and button
150 151 compatible first slot 114 of head, first slot 114 can prevent button 150 from being slided from 111 lower end of axially extending bore
Go out, which is located at the lower section of intermediate 120, and the lower end of intermediate 120 has the head 151 with button 150
Compatible second slot 123, in addition, since the head 151 of button 150 is in spherical, first slot 114 and the second slot
123 be in spherical.In addition, being provided with damping ring 160 between the head 151 of button 150 and the first slot 114, effectively prevent
The uncontrolled arbitrary rotation of button, damping ring 160 can be fixed on the head 151 of button 150, i.e. button 150
There is the slot (not shown) of fixed damping ring 160 on head 151, but due to existing between the first slot 114 and the second slot 213 between
Gap can affect the effect of damping ring 160, therefore, to avoid the generation of the above problem, damping ring 160 can be fixed on to
On one slot 114, wherein damping ring 160, which can embed, to be arranged on the first slot 114, i.e. has fixed damping ring on the first slot 114
160 third slot 118.
As shown in Figure 4 and Figure 5, the notch 115 for expanding 150 rotational angle of button is additionally provided on the first slot 114,
The notch 115 is located at the lower section of third slot 118.First slot 114 coordinates with button 150, makes the rotational angle of button 150
Coverage area be+/ -25 °, the third slot 118 can make button 150 rotational angle coverage area reach+50 °.
As shown in fig. 6, intermediate 120 is in U, i.e., 120 upper end of intermediate is the second U-shaped hole 121, the second U-shaped hole 121
It is connected with the second slot 123, when intermediate 120 and nail set 110 assemble, the first U-shaped hole 112 and the second U-shaped hole 121 are corresponding,
Convenient for the insertion of pitman 130.120 upper end of intermediate is outward extended with convex block 124, in conjunction with Fig. 3 and Fig. 5, axially extending bore 111
On be provided with the 4th slot 116 coordinated with convex block 124, the 4th slot 116 is located between internal thread 113 and the first slot 114, convex block
124 and the 4th slot 116 coordinate, limit 120 slide downward of intermediate distance.In addition, also having the on the outer wall of intermediate 120
One sets of holes 125, nail covers is additionally provided with second sets of holes 119 corresponding with the first sets of holes 125 on 110, passes through and rivets the connections such as nail
Part passes through the second sets of holes 119 and the first sets of holes 125 to coordinate, and then realizes the further fixing on nail set 110 of intermediate 120.
In addition, the inside of 120 upper end of intermediate has the 5th slot 122 of 140 lower end of evacuation locking jackscrew.
In above-described embodiment, which can be made of six aluminium of titanium, four vanadium material.
As shown in fig. 7, the head 151 of button 150 is in spherical, the nail rod of button 150 has external screw thread.Button
150 be hollow structure, and has several through-holes 152 in the nail rod of button 150, can be from the head of button 150 internally
Bone cement is injected, which can flow out from 150 tail portion of button and through-hole 152.Preferably, through-hole 152 may be provided at
Tooth bottom, therefore, bone cement can be flowed along screw thread, and energy large area is filled, and uniformly filling.Wherein, through-hole 152
Quantity can be selected according to actual conditions, in the present embodiment, the quantity of through-hole 152 is six.In addition, button 150
Tail portion has cutting edge 153, and the self tapping feature of button 150 can be made to reinforce, and in the present embodiment, the quantity of cutting edge 153 is two,
And it is arranged along the circumference array of button 150.
As shown in figure 5, internal thread 103 is rectangular thread, axial single load bearing, after eliminating 110 radial pine of rising of nail set
Lock actual effect.Correspondingly, the external screw thread that locking jackscrew 140 coordinates with it is also rectangular thread.
As shown in figure 3, being provided with the 5th slot 117 on the outer wall of nail set 110, restorer 200 is drawn to act on the 5th slot 117
On, the locking of pedicle nail can be driven.
As shown in Figure 8 and Figure 9, lifting restorer 200 includes sleeve body 210, the locking of the first locking sleeve 220 and second
Sleeve 230, the first locking sleeve 220 and the second locking sleeve 230 are respectively sleeved at the outside of sleeve body 210, and first
Locking sleeve 220 and the second locking sleeve 230 can be rotated mutually, wherein one end of sleeve body 210 has clamping part, folder
Hold portion for be clamped nail set 110, the first locking sleeve 220 be located at sleeve body 210 have clamping part one end on, second lock
Sleeve 230 is located on opposite end of the sleeve body 210 with clamping part, and the second locking sleeve 230 and 210 spiral shell of sleeve body
Line connects, and by rotating the second locking sleeve 230, sleeve body 210 can be made to be moved along the axis direction of the second locking sleeve 230
It is dynamic, wherein sleeve body 210, the first locking sleeve 220 and the second locking sleeve 230 are coaxial arrangement, when sleeve body 210
Towards the second locking sleeve 230 when the direction of installation end in sleeve body 210 is moved, i.e., 210 pulling nail of sleeve body covers 110,
Realize the locking of pedicle nail.
As shown in figure 8, clamping part is to be flexibly connected with sleeve body 210, i.e., clamping part is removably mounted at sleeve body
On 210, which includes an at least clamping limb 240, and with reference to figure 10, clamping limb 240 includes anchor ear 241 and shrapnel 242, is embraced
241 connection shrapnel 242 of hoop, the opposite end that shrapnel 242 connects anchor ear 241 have a protrusion 243, which can be fastened on nail
In the 5th slot 117 on set 110, and then realize the action of clamping part clamping nail set 110.Incorporated by reference to Figure 11, clamping limb 240 is solid
When being scheduled in sleeve body 210, one end of 242 Connection protrusion 243 of shrapnel has one end of clamping part towards sleeve body 210,
Wherein, there is the limit hole 211 coordinated with shrapnel 242, it is certain which can be such that protrusion 243 has in sleeve body 210
Scope of activities, when preventing sleeve body 210 from connecting one end of clamping part with nail 110 cooperation of set, this can not 243 meeting of movable protrusion
Nail set 110 is blocked, makes nail set 110 that can not be inserted into.In addition, sleeve body 210 and the diameter of the cooperation section 212 of anchor ear 241 are less than
The diameter of the gripping section 213 of limit hole 211 is set, makes the embedded setting of anchor ear 241, anchor ear 241 is prevented to be mounted on cooperation section 212
Gripping section 213 is protruded above, and influences the cooperation of the first locking sleeve 220 and sleeve body 210.Preferably, clamping limb 240
Quantity be two, two clamping limbs 240 be mounted on sleeve body 210 on when, two anchor ears 241 with synthesis one ring junction
Structure.
It will be appreciated by persons skilled in the art that since nail set 110 takes the shape of the letter U, and follow closely the first U-shaped hole 112 on set 110
For the insertion of pitman 130, which has one end of clamping part also U-shaped, for avoiding pitman 130.
As shown in figure 8, the screwing type lifting restorer further includes the first pin 260, the first pin 260 can fix first
The relative position of locking sleeve 220 and the second locking sleeve 230 makes the first locking sleeve 220 and the second locking sleeve 230 not send out
Mutually rotation only occurs for raw axial displacement.Specifically, have in conjunction with Figure 12, on the first locking sleeve 220 and fix the first pin
260 the first hole 221, the axis perpendicular of the axis in the first hole 221 and the first locking sleeve 220, the second locking sleeve 230
One end is set in inside the first locking sleeve 220, and one second annular groove 231, the second annular groove 231 are provided on the outer wall at the end
Along the circumferentially disposed of the second locking sleeve 230, when assembling, the first pin 260 is located in the second annular groove 231, and therefore, this second
Annular groove 231 has limited the first pin 260, and the first locking sleeve 220 and the axial position of the second locking sleeve 230 is made not to send out
Raw displacement.The screwing type lifting restorer further includes the second pin 250, and the second pin 250 can make 220 He of the first locking sleeve
Sleeve body 210 does not occur mutually to rotate, and axial displacement only occurs.Specifically, in conjunction with Figure 12, have on the first locking sleeve 220
There is the second hole 222 for fixing the second pin 250, the axis perpendicular of the axis in the second hole 222 and the first locking sleeve 220,
In, the axis in the axis in the second hole 222 and the first hole 221 can be perpendicular, when the second pin 250 is fixed in the second hole 222,
There is the limiting slot 214 that coordinates with the second pin 250, position can refer to figure shown in limiting slot 214 in the sleeve body 210
11, wherein limiting slot 214 and limit hole 211 are located at the both sides for coordinating section 212, the length limitation first of the limiting slot 214
The distance that locking sleeve 220 and sleeve body 210 mutually axially move.
As shown in figs. 9 and 12, the outer wall of sleeve body 210 may be provided with scale (not shown), the first locking sleeve 220
On be provided with the window 223 coordinated with scale, the both ends of window 223 can be used as datum mark, when axial position occurs for sleeve body 210
When shifting, the scale value pointed by the datum mark is just the distance that sleeve body 210 moves axially.
The outer wall of first locking sleeve 220 and the second locking sleeve 230 anti-skidding can be handled, the second locking of rotation easy to operation
Sleeve 230.Specifically, 2 are please referred to Fig.1, the first anti-slip tank 224 is provided on 220 outer wall of the first locking sleeve, first is anti-skidding
Slot 224 is located on the opposite end of the first locking sleeve 220 and the cooperation of the second locking sleeve 230.Referring to FIG. 8, the second lock sleeve
It is provided with the second anti-slip tank 232 on the outer wall of cylinder 230, the second anti-slip tank 232 is located at the second locking sleeve 230 and the first lock sleeve
On 220 opposite ends of cylinder.
Second embodiment
Difference lies in the structures of nail set 110 and intermediate 120 to be changed for second embodiment and first embodiment, such as
Shown in Figure 13, the first slot 114 being arranged inside the lower end of axially extending bore 111 includes first annular slot 114b, first annular slot
Axially through-hole 111 is circumferentially disposed by 114b, and the end face of first annular slot 114b to 110 lower ends of nail set is an inclined-plane 114a, i.e.,
Nail covers end face to the taper hole for opening towards 111 upper end of axially extending bore between first annular slot 114b, inclined-plane of 110 lower ends
114a is adapted with 120 lower end of intermediate.In addition, 111 diameter of axially extending bore on nail 110 lower end surfaces of set is more than button
The diameter on 150 head 151 covers the lower end that 110 lower ends are inserted into intermediate 120 convenient for the head 151 of button 150 from nail
It is interior, wherein the lower end of intermediate 120 has second slot 123 compatible with the head 151 of button 150, second slot 123
In spherical, several 6th slots 126 are provided on the outer wall of intermediate 120, the 6th slot 126 faces upward from the lower end of intermediate 120
Extend, and be not pierced by from the upper surface of intermediate 120, several 6th slots 126 can be along the circumference array of intermediate 120
Setting, in the present embodiment, the quantity of the 6th slot 126 is six, wherein the height of four the 6th slots 126 is without departing from the second slot
123 height, the height of other two the 6th slot 126 can exceed the height of the second slot 123, which can be symmetrical
Setting, the intermediate 120 can be made of six aluminium of titanium, four vanadium material, and therefore, there are tension for the lower end of intermediate 120, are convenient for bulb
The insertion on the head 151 of nail 150.In assembling process, intermediate 120 is encased in from 110 upper ends of nail set in axially extending bore 111,
Secondly, the head 151 of button 150 is inserted into from 110 lower ends of nail set in the second slot 123 of 120 lower end of intermediate, due to the
One annular groove 114b can make the lower end of intermediate 120 that can suitably strut, convenient for the insertion on the head 151 of button 150, later,
Compact form lifts 200 pulling nail of restorer set 110, i.e. intermediate 120 moves down, and the lower end of intermediate 120 is made to match with inclined-plane 114a
It closes, to realize the locking of pedicle nail.Wherein, the head 151 of button 150 is not contacted with nail set 110, due to button
150 head 151 is inserted into from 110 lower ends of nail set, therefore, in the case that on the head of button 150,151 size is constant, can be filled
Button 150 with major diameter nail rod.The button 150 of the major diameter nail rod can be applied to Thoracolumbar disk position.
From the foregoing, it will be observed that the lower end of intermediate 120 wraps the head 151 of button 150, the effect of damping is played, is had
Effect prevents the uncontrolled arbitrary rotation of button 150.
Embodiment described above is merely to illustrate the technological thought and feature of the utility model, and its object is to make ability
Technical staff in domain can understand the content of the utility model and implement according to this, only cannot limit this practicality with the present embodiment
Novel the scope of the claims uses, i.e., all according to same changes or modifications made by the revealed spirit of the utility model, still falls at this
In the scope of the claims of utility model.
Claims (10)
1. a kind of pedicle nail lifts component, which is characterized in that including pedicle nail (100) and lifting restorer (200)；
The pedicle nail (100) includes nail set (110), intermediate (120) and button (150), and the nail set (110) has
The upper end inner wall of axially extending bore (111), the axially extending bore (111) has internal thread (113), the intermediate (120) and institute
The head (151) for stating button (150) is located at the inside of the axially extending bore (111), and the head of the button (150)
Portion (151) is located at the lower section of the intermediate (120), wherein the lower end of the intermediate (120) has and the button
(150) compatible second slot (123) in head (151)；
The lifting restorer (200) includes sleeve body (210), the first locking sleeve (220) and the second locking sleeve
(230), first locking sleeve (220) and second locking sleeve (230) are respectively sleeved at described sleeve pipe ontology (210)
Outside, and first locking sleeve (220) and second locking sleeve (230) can be rotated mutually, sleeve body
(210) there is clamping part, the clamping part to cover (110) for the nail to be clamped for one end, second locking sleeve (230) and
The opposite end of first locking sleeve (220) has one end of clamping part, and described second towards described sleeve pipe ontology (210)
Locking sleeve (230) is threadedly coupled with described sleeve pipe ontology (210), by rotating second locking sleeve (230), is made described
Sleeve body (210) is moved along the axis direction of second locking sleeve (230), when described sleeve pipe ontology (210) is towards institute
When stating opposite extreme direction movement of the sleeve body (210) with clamping part, i.e., described sleeve pipe ontology (210) lifts the nail set
(110), and then the locking of the pedicle nail (100) is realized.
2. pedicle nail as described in claim 1 lifts component, which is characterized in that be arranged on the outer wall of the nail set (110)
There is the 5th slot (117) coordinated with the clamping part；
The clamping part includes two clamping limbs (240), and the clamping limb (240) includes anchor ear (241) and shrapnel (242), institute
It states anchor ear (241) and connects the shrapnel (242), the opposite end that the shrapnel (242) connects the anchor ear (241) has a protrusion
(243), the protrusion (243) is used to coordinate with the 5th slot (117), and the anchor ear (241) is set in described sleeve pipe ontology
(210) on, one end of shrapnel (242) Connection protrusion (243) has the one of clamping part towards described sleeve pipe ontology (210)
End, also, there is the limit hole (211) coordinated with the shrapnel (242) on described sleeve pipe ontology (210).
3. pedicle nail as described in claim 1 lifts component, which is characterized in that axially extending bore (111) lower end has
Compatible first slot (114) with the head (151) of the button (150), first slot (114) are located at second slot
(123) lower section, first slot (114) is for preventing the button (150) from being slided from the axially extending bore (111) lower end
Go out.
4. pedicle nail as claimed in claim 3 lifts component, which is characterized in that the pedicle nail (100) further includes resistance
Buddhist nun's ring (160), the damping ring (160) are located between the head (151) and first slot (114) of the button (150),
There is the third slot (118) of the fixed damping ring (160) on first slot (114).
5. pedicle nail as claimed in claim 3 lifts component, which is characterized in that be additionally provided on first slot (114)
Notch (115) for expanding the button (150) rotational angle.
6. pedicle nail as claimed in claim 3 lifts component, which is characterized in that first slot (114) includes the first ring
Shape slot (114b), the first annular slot (114b) is circumferentially disposed along the axially extending bore (111), the first annular slot
The end face that (114b) covers (110) lower end to the nail is an inclined-plane (114a), the inclined-plane (114a) and the intermediate (120)
Lower end is adapted；
The axially extending bore (111) diameter on described nail set (110) lower end surface is more than the head of the button (150)
(151) diameter is convenient for the head (151) of the button (150) to cover (110) lower end from the nail and is inserted into the intermediate
(120) in the second slot (123) of lower end；
It is provided with several 6th slots (126) on the outer wall of the intermediate (120), the 6th slot (126) is from the intermediate
(120) lower face upwardly extends.
7. the pedicle nail as described in claim 3 or 6 lifts component, which is characterized in that the intermediate (120) is six aluminium of titanium
Four vanadium materials are made.
8. pedicle nail as described in claim 1 lifts component, which is characterized in that the lifting restorer (200) further includes
First pin (260) has the first hole (221) of fixed first pin (260) on first locking sleeve (220),
The axis perpendicular of the axis of first hole (221) and first locking sleeve (220), second locking sleeve
(230) one end is set in the first locking sleeve (220) inside, and one second annular groove (231) is provided on the outer wall at the end,
Second annular groove (231) is circumferentially disposed along second locking sleeve (230), when first pin (260) is fixed
When first hole (221) is interior, first pin (260) is located in the second annular groove (231), makes first lock sleeve
Axial displacement does not occur for cylinder (220) and second locking sleeve (230), and mutually rotation only occurs.
9. pedicle nail as claimed in claim 8 lifts component, which is characterized in that the lifting restorer (200) further includes
Second pin (250) has the second hole (222) of fixed second pin (250) on first locking sleeve (220),
The axis perpendicular of the axis of second hole (222) and first locking sleeve (220), when second pin (250)
Be fixed on second hole (222) it is interior when, there is on described sleeve pipe ontology (210) limit coordinated with second pin (250)
Position slot (214), makes first locking sleeve (220) and described sleeve pipe ontology (210) not occur mutually to rotate, and only occurs axial
Displacement.
10. pedicle nail as claimed in claim 9 lifts component, which is characterized in that the axis of second hole (222) and institute
The axis for stating the first hole (221) can be perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769989.1U CN207886269U (en) | 2017-06-29 | 2017-06-29 | Pedicle nail lifts component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769989.1U CN207886269U (en) | 2017-06-29 | 2017-06-29 | Pedicle nail lifts component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207886269U true CN207886269U (en) | 2018-09-21 |
Family
ID=63546631
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720769989.1U Withdrawn - After Issue CN207886269U (en) | 2017-06-29 | 2017-06-29 | Pedicle nail lifts component |
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| Country | Link |
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| CN (1) | CN207886269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107260280A (en) * | 2017-06-29 | 2017-10-20 | 闻泰医疗科技（上海）有限公司 | Pedicle nail lifts component |
-
2017
- 2017-06-29 CN CN201720769989.1U patent/CN207886269U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107260280A (en) * | 2017-06-29 | 2017-10-20 | 闻泰医疗科技（上海）有限公司 | Pedicle nail lifts component |
| CN107260280B (en) * | 2017-06-29 | 2023-04-07 | 闻泰医疗科技（上海）有限公司 | Pedicle screw lifting assembly |
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