CN204971536U - Multi -angle bone cement side opening backbone hollow rivet - Google Patents
Multi -angle bone cement side opening backbone hollow rivet Download PDFInfo
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- CN204971536U CN204971536U CN201520605464.5U CN201520605464U CN204971536U CN 204971536 U CN204971536 U CN 204971536U CN 201520605464 U CN201520605464 U CN 201520605464U CN 204971536 U CN204971536 U CN 204971536U
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- bone cement
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Abstract
The utility model discloses a multi -angle bone cement side opening backbone hollow rivet comprises pin fin, nail pole, screw tail, the pin fin is equipped with the self tapping mouth, nail pole center is provided with the hollow rivet hole, hollow rivet hole one end opening is in U type inslot, the other end end in pin fin department, the downthehole many angle setting of hollow rivet have bone cement hole, bone cement side opening includes updip bone cement hole, perpendicular bone cement hole, bone cement hole has a down dip, nail pole outside is equipped with the double thread, the last U type groove that is equipped with of screw tail, the inside negative angle degree screw thread that is provided with of screw tail, the screw tail periphery is equipped with the rupture groove, the rupture groove is provided with the cross slot from top to bottom, be provided with the elliptical aperture on the screw tail lateral wall, this novel adoption multi -angle bone cement side opening set up with the design of negative angle degree screw thread, bone cement fills the effect and the dispersibility is good, leads to the backbone to bend and stretch repeatedly when movable, can not take place to become flexible, the backbone is firmly fixed with hollow rivet.
Description
Technical field
This utility model relates to a kind of orthopedic medical device technical equipment field, particularly a kind of multi-angle bone cement side opening spinal column hollow nail.
Background technology
Osteoporosis is the ubiquitous problem of old people, operative treatment implants spinal column hollow nail, generally first hole with screw tap, position with Kirschner wire again, then insert spinal column hollow nail, reach sections and fix object, but the method is easy to injured nerve root, cause patient maimed, and operating time is long, wastes time and energy, be not easy adjustment; Osteoporosis or the heavier patient's angle of traumatic condition are often lost, upper and lower spinal column hollow nail cutting vertebral body simultaneously, or occur the situations such as spinal column hollow nail loosens, broken nail, disconnected rod, cause operative failure, need to carry out second operation.
Existing spinal column hollow nail includes drive screw bar and U-shaped nail arm, drive screw bar is solid, be screw designs with the closely-related factor of spinal column hollow nail stability, insert the connection of screw quality, screw bone interface and screw, wherein, key is the interface of screw and bone; Be fixed by bone cement in using, clinically because bone cement perfusion effect is bad, bone cement bad dispersibility, under causing the shear action of spinal column flexion-extension motion repeatedly, the most easily occur to loosen, and then cause fatigability to be ruptured, senile fracture is loosened patient, cannot fixedly secure.
Utility model content
For solving the problems of the technologies described above, this utility model provides a kind of multi-angle bone cement side opening spinal column hollow nail, for the deficiencies in the prior art, this hollow nail of novel employing and multi-angle bone cement side opening, bone cement is injected by shank central hollow nail, bone cement side opening from the side injects bone cement, obviously can increase the resistance to plucking output capacity of spinal column hollow nail after bone cement solidifies; Bone cement perfusion effect is good, bone cement good dispersion, cause spinal column repeatedly flexion-extension motion time, can not loosen, spinal column and hollow nail fixedly secure.
For achieving the above object, the technical solution of the utility model is as follows: a kind of multi-angle bone cement side opening spinal column hollow nail, be called for short spinal column hollow nail, comprise ailhead, self tapping mouth, nail bar, double thread, bone cement side opening, hollow nail, U-type groove, nail tail, snap slot, elliptical aperture, translot, negative angle screw thread, it is characterized in that:
Described spinal column hollow nail is made up of ailhead, nail bar, nail tail, and described ailhead, nail bar, nail tail are that integral metal material processing is formed, and described ailhead is bullet, and is provided with self tapping mouth, and described ailhead is connected with nail bar, described nail bar is cylinder, described Ding Gan center is provided with hollow nail, described hollow nail designs for blind hole, described hollow nail one end open is in U-type groove, the other end terminates in described ailhead place, described hollow nail is provided with multiple bone cement side opening near ailhead end, described bone cement side opening adopts multi-angle to arrange, described bone cement side opening comprises updip bone cement hole, vertical bone cement hole, have a down dip bone cement hole, described updip bone cement hole, vertical bone cement hole, have a down dip between bone cement hole and radially equiangularly arrange, described updip bone cement hole is to determine that angle is obliquely installed to nail tail direction, described vertical bone cement hole with nail bar central vertical direction arrange, described in have a down dip bone cement hole to determine that angle is obliquely installed to ailhead direction, described bone cement side opening is two-way through hole, and described nail bar outer setting has double thread, and described nail bar is connected by circular arc transition with described nail tail, described nail tail is circular arc body, described nail tail is provided with U-type groove, be communicated with described hollow nail bottom described U-type groove, described nail tail inside is provided with negative angle screw thread, described negative angle screw thread matches with the external screw thread of corresponding negative angle nut, and described negative angle nut is fixed in the U-type groove of described nail tail by being spirally connected, be provided with snap slot in the middle part of described nail tail periphery, described snap slot is wedge-shaped slot, described snap slot is vertically disposed with translot, and described nail tail sidewall is provided with elliptical aperture, and described elliptical aperture is arranged at two sides up and down of described snap slot.
Described updip bone cement hole is obliquely installed to nail tail direction with 30 degree-60 degree.(miter angle)
The described bone cement hole that has a down dip is obliquely installed to ailhead direction with 30 degree-60 degree.(miter angle)
Described bone cement side opening at least arranges two, and the angle radially distributed between described bone cement side opening is 120 degree.
Pass through technique scheme, the beneficial effect of this new technique scheme is: this hollow nail of novel employing and multi-angle bone cement side opening, bone cement is injected by nail bar central hollow nail, bone cement side opening from the side injects bone cement, obviously can increase the resistance to plucking output capacity of spinal column hollow nail after bone cement solidifies; Increase bone cement to live and the crystallized ability of hollow nail ridge, bone cement can be injected by the hollow nail hole of nail bar to the rachiopathy patient that senile fracture is loosened, because of hollow rivet nut for blind hole designs, the bone cement side opening that only can be directed through side flows out, bone cement perfusion effect is good, bone cement good dispersion, cause spinal column repeatedly flexion-extension motion time, can not loosen, spinal column and hollow nail fixedly secure.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme in this new embodiment or prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, accompanying drawing in the following describes is only these some novel embodiments, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of multi-angle bone cement side opening spinal column hollow nail structural representation disclosed in this utility model embodiment;
Fig. 2 is for a kind of multi-angle bone cement side opening spinal column hollow nail AA disclosed in this utility model embodiment is to schematic diagram.
Numeral and the corresponding component title represented by letter in figure:
1. ailhead 2. self tapping mouth 3. follows closely bar 4. double thread
5. bone cement side opening 6. hollow nail 7.U type groove 8. follows closely tail
9. snap slot 10. elliptical aperture 11. translot 12. negative angle screw thread
51. vertical bone cement hole 53., updip bone cement holes 52. have a down dip bone cement hole
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
According to Fig. 1 and Fig. 2, this utility model provides a kind of multi-angle bone cement side opening spinal column hollow nail, comprises ailhead 1, self tapping mouth 2, nail bar 3, double thread 4, bone cement side opening 5, hollow nail 6, U-type groove 7, nail tail 8, snap slot 9, elliptical aperture 10, translot 11, negative angle screw thread 12.
Described spinal column hollow nail is made up of ailhead 1, nail bar 3, nail tail 8, and described ailhead 1, nail bar 3, nail tail 8 are processed for integral metal material and formed, and described ailhead 1 is bullet, and is provided with self tapping mouth 2, and described ailhead 1 is connected with nail bar 3, described nail bar 3 is cylinder, described nail bar 3 center is provided with hollow nail 6, described hollow nail 6 designs for blind hole, described hollow nail 6 one end open is in U-type groove 7, the other end terminates in described ailhead 1 place, described hollow nail 6 is provided with multiple bone cement side opening 5 near ailhead 1 end, described bone cement side opening 5 adopts multi-angle to arrange, described bone cement side opening 5 comprises updip bone cement hole 51, vertical bone cement hole 52, have a down dip bone cement hole 53, described updip bone cement hole 51, vertical bone cement hole 52, have a down dip between bone cement hole 53 and radially equiangularly arrange, described updip bone cement hole 51 is to determine that angle is obliquely installed to nail tail 8 direction, described vertical bone cement hole 52 is arranged with nail bar 3 central vertical direction, described in have a down dip bone cement hole 53 to determine that angle is obliquely installed to ailhead 1 direction, described bone cement side opening 5 is two-way through hole, and described nail bar 3 outer setting has double thread 4, and described nail bar 3 is connected by circular arc transition with described nail tail 8, described nail tail 8 is circular arc body, described nail tail 8 is provided with U-type groove 7, be communicated with described hollow nail 6 bottom described U-type groove 7, described nail tail 8 inside is provided with negative angle screw thread 12, described negative angle screw thread 12 matches with the external screw thread of corresponding negative angle nut, and described negative angle nut is fixed in the U-type groove 7 of described nail tail 8 by being spirally connected, be provided with snap slot 9 in the middle part of described nail tail 8 periphery, described snap slot 9 is wedge-shaped slot, described snap slot 9 is vertically disposed with translot 11, and described nail tail 8 sidewall is provided with elliptical aperture 10, and described elliptical aperture 10 is arranged at two sides up and down of described snap slot 9.
Described updip bone cement hole 51 is obliquely installed to nail tail 8 direction with miter angle.
The described bone cement hole 53 that has a down dip is obliquely installed to ailhead 1 direction with miter angle.
Described bone cement side opening 5 at least arranges two, and the angle radially distributed between described bone cement side opening 5 is 120 degree.
By above-mentioned specific embodiment, the beneficial effects of the utility model are: this hollow nail of novel employing and multi-angle bone cement side opening, bone cement is injected by nail bar central hollow nail, bone cement side opening from the side injects bone cement, obviously can increase the resistance to plucking output capacity of spinal column hollow nail after bone cement solidifies; Increase bone cement to live and the crystallized ability of hollow nail ridge, bone cement can be injected by the hollow nail hole of nail bar to the rachiopathy patient that senile fracture is loosened, because of hollow rivet nut for blind hole designs, the bone cement side opening that only can be directed through side flows out, bone cement perfusion effect is good, bone cement good dispersion, cause spinal column repeatedly flexion-extension motion time, can not loosen, spinal column and hollow nail fixedly secure.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses this utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, this utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a multi-angle bone cement side opening spinal column hollow nail, be called for short spinal column hollow nail, it is characterized in that: comprise ailhead, self tapping mouth, nail bar, double thread, bone cement side opening, hollow nail, U-type groove, nail tail, snap slot, elliptical aperture, translot, negative angle screw thread, described spinal column hollow nail is made up of ailhead, nail bar, nail tail, and described ailhead, nail bar, nail tail are that integral metal material processing is formed, and described ailhead is bullet, and is provided with self tapping mouth, and described ailhead is connected with nail bar, described nail bar is cylinder, described Ding Gan center is provided with hollow nail, described hollow nail designs for blind hole, described hollow nail one end open is in U-type groove, the other end terminates in described ailhead place, described hollow nail is provided with multiple bone cement side opening near ailhead end, described bone cement side opening adopts multi-angle to arrange, described bone cement side opening comprises updip bone cement hole, vertical bone cement hole, have a down dip bone cement hole, described updip bone cement hole, vertical bone cement hole, have a down dip between bone cement hole and radially equiangularly arrange, described updip bone cement hole is to determine that angle is obliquely installed to nail tail direction, described vertical bone cement hole with nail bar central vertical direction arrange, described in have a down dip bone cement hole to determine that angle is obliquely installed to ailhead direction, described bone cement side opening is two-way through hole, and described nail bar outer setting has double thread, and described nail bar is connected by circular arc transition with described nail tail, described nail tail is circular arc body, described nail tail is provided with U-type groove, be communicated with described hollow nail bottom described U-type groove, described nail tail inside is provided with negative angle screw thread, described negative angle screw thread matches with the external screw thread of corresponding negative angle nut, and described negative angle nut is fixed in the U-type groove of described nail tail by being spirally connected, be provided with snap slot in the middle part of described nail tail periphery, described snap slot is wedge-shaped slot, described snap slot is vertically disposed with translot, and described nail tail sidewall is provided with elliptical aperture, and described elliptical aperture is arranged at two sides up and down of described snap slot.
2. a kind of multi-angle bone cement side opening spinal column hollow nail according to claim 1, is characterized in that, described updip bone cement hole is obliquely installed to nail tail direction with 30 degree-60 degree.
3. a kind of multi-angle bone cement side opening spinal column hollow nail according to claim 1, is characterized in that, described in the bone cement hole that has a down dip be obliquely installed to ailhead direction with 30 degree-60 degree.
4. a kind of multi-angle bone cement side opening spinal column hollow nail according to claim 1, it is characterized in that, described bone cement side opening at least arranges two, and the angle radially distributed between described bone cement side opening is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605464.5U CN204971536U (en) | 2015-08-12 | 2015-08-12 | Multi -angle bone cement side opening backbone hollow rivet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605464.5U CN204971536U (en) | 2015-08-12 | 2015-08-12 | Multi -angle bone cement side opening backbone hollow rivet |
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| CN204971536U true CN204971536U (en) | 2016-01-20 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852953A (en) * | 2016-05-19 | 2016-08-17 | 王志荣 | Pourable pedicle screw |
| CN105943144A (en) * | 2016-05-19 | 2016-09-21 | 王志荣 | Combined pourable pedicle screw system |
| WO2017197868A1 (en) * | 2016-05-19 | 2017-11-23 | 王志荣 | Combined-type perfusable pedicle screw system |
| CN108784816A (en) * | 2018-08-01 | 2018-11-13 | 常州华森医疗器械有限公司 | Oval side opening hollow pedicle nail |
| CN111803159A (en) * | 2020-06-11 | 2020-10-23 | 河北春立航诺新材料科技有限公司 | Bone cement anchor with thread and handle |
| CN111839707A (en) * | 2020-06-30 | 2020-10-30 | 陈丹华 | Bone cement propeller of vertebroplasty system |
-
2015
- 2015-08-12 CN CN201520605464.5U patent/CN204971536U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852953A (en) * | 2016-05-19 | 2016-08-17 | 王志荣 | Pourable pedicle screw |
| CN105943144A (en) * | 2016-05-19 | 2016-09-21 | 王志荣 | Combined pourable pedicle screw system |
| WO2017197868A1 (en) * | 2016-05-19 | 2017-11-23 | 王志荣 | Combined-type perfusable pedicle screw system |
| CN108784816A (en) * | 2018-08-01 | 2018-11-13 | 常州华森医疗器械有限公司 | Oval side opening hollow pedicle nail |
| CN108784816B (en) * | 2018-08-01 | 2020-01-21 | 常州华森医疗器械有限公司 | Hollow pedicle screw with oval side hole |
| CN111803159A (en) * | 2020-06-11 | 2020-10-23 | 河北春立航诺新材料科技有限公司 | Bone cement anchor with thread and handle |
| CN111839707A (en) * | 2020-06-30 | 2020-10-30 | 陈丹华 | Bone cement propeller of vertebroplasty system |
| CN111839707B (en) * | 2020-06-30 | 2021-07-20 | 陈丹华 | Bone cement propeller of vertebroplasty system |
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