CN207768493U - There is the pedicle nail of damping ring - Google Patents
There is the pedicle nail of damping ring Download PDFInfo
- Publication number
- CN207768493U CN207768493U CN201720769988.7U CN201720769988U CN207768493U CN 207768493 U CN207768493 U CN 207768493U CN 201720769988 U CN201720769988 U CN 201720769988U CN 207768493 U CN207768493 U CN 207768493U
- Authority
- CN
- China
- Prior art keywords
- slot
- button
- nail
- damping ring
- axially extending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 title claims abstract description 36
- 241001079814 Symphyotrichum pilosum Species 0.000 claims description 4
- 235000004224 Typha angustifolia Nutrition 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002639 bone cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 201000002661 Spondylitis Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses a kind of pedicle nail having damping ring, it is covered including nail, intermediate, button and damping ring, nail set has axially extending bore, the upper end inner wall of axially extending bore has internal thread, intermediate is located inside axially extending bore, axially extending bore lower end has the first slot compatible with the head of button, button is located at the lower section of intermediate, and, the lower end of intermediate has the second slot compatible with the head of button, it is provided with damping ring between the head of button and the first slot, there is the third slot of fixed damping ring on first slot, by being provided with damping ring between the head of button and the first slot, effectively prevent the uncontrolled arbitrary rotation of button.
Description
Technical field
The utility model is related to a kind of pedicle nails having damping ring.
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 in the course of surgery, bulb and the nail of button cover the relationship that can rotate, if the bulb
Nail rotation is excessively flexible, can influence orientation angle and the position of button.
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：One kind is provided effectively to keep away
The uncontrolled pedicle nail for having damping ring arbitrarily rotated of button is exempted from.
To achieve the above objectives, the utility model provides a kind of pedicle nail having damping ring, including nail set, centre
Body, button and damping ring, the nail set have axially extending bore, and the upper end inner wall of the axially extending bore has internal thread, described
Intermediate is located inside the axially extending bore, and the axially extending bore lower end has compatible with the head of the button first
Slot, the button is located at the lower section of the intermediate, also, the lower end of the intermediate has the head with the button
Compatible second slot, is provided with the damping ring between the head of the button and first slot, on first slot
Third slot with the fixation damping ring.
Further, the notch for expanding the button rotational angle, the notch position are provided on first slot
In the lower section of the third slot.
Further, the 4th slot is provided on the axially extending bore, the 4th slot is located at the internal thread and described first
Between slot, the intermediate upper end is outward extended with protrusion, and the protrusion coordinates with the 4th slot, limit the intermediate to
The distance of lower slider.
Further, there are the first sets of holes, the nail, which is put on, to be provided with and first sets of holes on the outer wall of the intermediate
During corresponding second sets of holes pass through second sets of holes to coordinate with first sets of holes by connector, and then realization is described
Fixation of the mesosome on the nail set.
Further, the nail set and the intermediate take the shape of the letter U respectively.
Further, the button is hollow structure, and has several through-holes in the nail rod of the button.
Further, the through-hole is arranged at tooth bottom.
Further, the button tail portion has cutting edge.
Further, the internal thread is rectangular thread.
Further, it is provided with the stress slot for driving the nail set axial movement on the outer wall of the nail set.
According to preferred embodiment, the utility model offers the advantage that：
The utility model effectively prevents button by being provided with damping ring between the head of button and the first slot
Uncontrolled arbitrary rotation.In addition, having a notch on the first slot, which can expand button rotational angle.In addition, ball
Head nail tail portion has cutting edge, and the self tapping feature of button can be made to reinforce.
Description of the drawings
Fig. 1 is the axial sectional view of the pedicle nail described in the utility model for having damping ring；
Fig. 2 is the stereogram of the pedicle nail described in the utility model for having damping ring；
Fig. 3 is the axial sectional view of nail set described in the utility model；
Fig. 4 is the structural schematic diagram of nail set described in the utility model；
Fig. 5 is the structural schematic diagram of intermediate described in the utility model；
Fig. 6 is the structural schematic diagram of button described in the utility model.
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.
It please refers to Fig.1 to Fig. 4, it includes nail set 100 to have the pedicle nail of damping ring, and nail set 100 has axially extending bore 101,
Nail set 100 can take the shape of the letter U, i.e., the upper end of axially extending bore 101 is the first U-shaped hole 102, is convenient for the insertion of pitman 300, axially extending bore
101 upper end inner wall also has internal thread 103, can coordinate with locking jackscrew 400, intermediate is arranged in axially extending bore 101
200, there is 101 lower end of axially extending bore first slot 104 compatible with the head 501 of button 500, the button 500 to be located at
The lower section of intermediate 200, and the lower end of intermediate 200 has second slot 203 compatible with the head 501 of button 500,
In addition, since the head 501 of button 500 is in spherical, first slot 104 and the second slot 203 are in spherical.
Unlike the prior art, it is provided with damping ring 600 between the head 501 of button 500 and the first slot 104,
Effectively prevent the uncontrolled arbitrary rotation of button.In one embodiment, damping ring 600 is fixed on button 500
Head 501 on, i.e., there is the slot (not shown) of fixed damping ring 600, but due to first on the head 501 of button 500
There are gaps for slot 104 and the second slot 203, affect the effect of damping ring 600.In another embodiment, damping ring 600 is solid
It is scheduled on the first slot 104, therefore, effectively prevent the generation of the above problem, incorporated by reference to Fig. 3, there is fixed damping on the first slot 104
The third slot 108 of ring 600.
In above-described embodiment, which can be made of six aluminium of titanium, four vanadium material.
In above-described embodiment, the notch 105 for expanding 500 rotational angle of button is additionally provided on the first slot 104, it should
Notch 105 is located at the lower section of third slot 108.Wherein, the first slot 104 coordinates with button 500, makes the angle of rotation of button 500
Spend coverage area be+/ -25 °, the third slot 108 can make button 500 rotational angle coverage area reach+50 °.
Incorporated by reference to Fig. 5, the 4th slot 106 is additionally provided on axially extending bore 101, the 4th slot 106 is located at internal thread 103 and first
Between slot 104,200 upper end of intermediate is outward extended with protrusion 204, and protrusion 204 and the 4th slot 106 coordinate, and limit intermediate 200
The distance of slide downward.
In above-described embodiment, intermediate 200 is in U, i.e., 200 upper end of intermediate is the second U-shaped hole 201, the second U-shaped hole
201 are connected with the second slot 203, and when intermediate 200 and nail set 100 assemble, the first U-shaped hole 102 and the second U-shaped hole 201 are opposite
It answers, is convenient for the insertion of pitman 300.The inside of 200 upper end of intermediate has the 5th slot 202 of 400 lower end of evacuation locking jackscrew.
In addition, also having the first sets of holes 205 on the outer wall of intermediate 200, it is additionally provided on nail set 100 corresponding with the first sets of holes 205
The second sets of holes 109, pass through the second sets of holes 109 and the first sets of holes 205 to coordinate by riveting the connectors such as nail, and then among realizing
The further fixing on nail set 100 of body 200.
Incorporated by reference to Fig. 6, the head 501 of button 500 is in spherical, and the nail rod of button 500 has external screw thread.Button
500 be hollow structure, and has several through-holes 502 in the nail rod of button 500, can be from the head of button 500 internally
Bone cement is injected, which can flow out from 500 tail portion of button and through-hole 502.Preferably, through-hole 502 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 502
Quantity can be selected according to actual conditions, and in the present embodiment, the quantity of through-hole 502 is six.In addition, 500 tail of button
Portion has cutting edge 503, and the self tapping feature of button 500 can be made to reinforce, and in the present embodiment, the quantity of cutting edge 503 is two, and
It is arranged along the circumference array of button 500.
Incorporated by reference to Fig. 1, internal thread 103 is rectangular thread, axial single load bearing, after eliminating 100 radial pine of rising of nail set
Lock actual effect.Correspondingly, the external screw thread that locking jackscrew 400 coordinates with it is also rectangular thread.
Incorporated by reference to Fig. 3, it is provided with the stress slot 107 for driving 100 axial movement of nail set on the outer wall of nail set 100, passes through work
Tool cooperation, and then drive the locking of pedicle nail.
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 having damping ring, which is characterized in that including nail set (100), intermediate (200), button (500)
With damping ring (600), there is the nail set (100) axially extending bore (101), the upper end inner wall of the axially extending bore (101) to have
Internal thread (103), the intermediate (200) are located at the axially extending bore (101) inside, axially extending bore (101) the lower end tool
There are compatible first slot (104) with the head of the button (500) (501), the button (500) to be located at the centre
The lower section of body (200), also, there is the head (501) with the button (500) mutually to fit for the lower end of the intermediate (200)
The second slot (203) matched is provided with the damping between the head (501) and first slot (104) of the button (500)
Ring (600) has the third slot (108) of the fixed damping ring (600) on first slot (104).
2. the pedicle nail as described in claim 1 for having damping ring, which is characterized in that be provided on first slot (104)
Notch (105) for expanding the button (500) rotational angle, the notch (105) are located at the third slot (108)
Lower section.
3. the pedicle nail as described in claim 1 for having damping ring, which is characterized in that be arranged on the axially extending bore (101)
There is the 4th slot (106), the 4th slot (106) is between the internal thread (103) and first slot (104), in described
Mesosome (200) upper end is outward extended with protrusion (204), and the protrusion (204) coordinates with the 4th slot (106), described in limitation
The distance of intermediate (200) slide downward.
4. the pedicle nail as described in claim 1 for having damping ring, which is characterized in that on the outer wall of the intermediate (200)
With the first sets of holes (205), the second sets of holes corresponding with the first sets of holes (205) are provided on the nail set (100)
(109), it passes through second sets of holes (109) to coordinate with first sets of holes (205) by connector, and then realizes the centre
Fixation of the body (200) on the nail set (100).
5. the pedicle nail as described in claim 1 for having damping ring, which is characterized in that the nail set (100) and the centre
Body (200) takes the shape of the letter U respectively.
6. the pedicle nail as described in claim 1 for having damping ring, which is characterized in that the button (500) is hollow knot
Structure, and there are several through-holes (502) in the nail rod of the button (500).
7. the pedicle nail as claimed in claim 6 for having damping ring, which is characterized in that the through-hole (502) is arranged at tooth bottom.
8. the pedicle nail as described in claim 1 for having damping ring, which is characterized in that button (500) tail portion has
Cutting edge (503).
9. the pedicle nail as described in claim 1 for having damping ring, which is characterized in that the internal thread (103) is rectangle spiral shell
Line.
10. the pedicle nail as described in claim 1 for having damping ring, which is characterized in that set on the outer wall of the nail set (100)
It is equipped with the stress slot (107) for driving nail set (100) axial movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769988.7U CN207768493U (en) | 2017-06-29 | 2017-06-29 | There is the pedicle nail of damping ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769988.7U CN207768493U (en) | 2017-06-29 | 2017-06-29 | There is the pedicle nail of damping ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207768493U true CN207768493U (en) | 2018-08-28 |
Family
ID=63218951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720769988.7U Expired - Fee Related CN207768493U (en) | 2017-06-29 | 2017-06-29 | There is the pedicle nail of damping ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207768493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113171166A (en) * | 2021-04-26 | 2021-07-27 | 宁波兆盈医疗器械有限公司 | Multipurpose pedicle screw, preparation method and fixing method thereof |
-
2017
- 2017-06-29 CN CN201720769988.7U patent/CN207768493U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113171166A (en) * | 2021-04-26 | 2021-07-27 | 宁波兆盈医疗器械有限公司 | Multipurpose pedicle screw, preparation method and fixing method thereof |
| CN113171166B (en) * | 2021-04-26 | 2022-06-14 | 宁波兆盈医疗器械有限公司 | Multipurpose pedicle screw, preparation method and fixing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 |