CN207821892U - One kind can wide-angle lateral-deviation type Universal screw nail - Google Patents
One kind can wide-angle lateral-deviation type Universal screw nail Download PDFInfo
- Publication number
- CN207821892U CN207821892U CN201720645836.6U CN201720645836U CN207821892U CN 207821892 U CN207821892 U CN 207821892U CN 201720645836 U CN201720645836 U CN 201720645836U CN 207821892 U CN207821892 U CN 207821892U
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- ball
- screw
- screw base
- bulb
- socket
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- 230000003139 buffering effect Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 3
- 210000000988 bone and bone Anatomy 0.000 abstract description 2
- 210000004705 lumbosacral region Anatomy 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000002436 femur neck Anatomy 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000037182 bone density Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 210000003692 ilium Anatomy 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
One kind can wide-angle lateral-deviation type Universal screw nail, it is related to bone surgery the field of medical instrument technology, including screw base and ball screw, for, at the inclined-plane at 20 35 degree of angles, ball screw includes rivet nut and bulb with screw base axis, rivet nut upper end is equipped with Joining clasp for screw base lower face, bulb is ball collar, the interior survey face of ball collar is to be equipped with annular engaging slot with the matched cylindrical surface in rivet nut upper end, the madial wall of ball collar, and ball collar lower part is circumferentially evenly equipped with the buffering notch of lower end perforation.The utility model has simple in structure, and installation, easy to use, of low cost, shaft diameter is big, a direction can wide-angle lateral deviation, the advantages that stabilized structure.
Description
Technical field
The utility model is related to bone surgery the field of medical instrument technology, it is a kind of simple in structure, assembly side to elaborate
Just, shaft diameter it is big, in one direction can wide-angle lateral deviation, it is structurally stable can wide-angle lateral-deviation type Universal screw nail.
Background technology
Currently used for the fixed screw of articulatio sacroiliaca be usually be not directly secured on pitman, such as application No. is
201320233485.X sacrums ilium internal fixation screw system and application No. is 201210618729.9 across bilateral articulatio sacroiliaca is complete
Thread hollow screw, although these screws can play the role of fixed articulatio sacroiliaca itself, due to receiving such operation
The Fusion levels of patient generally will extend to rumpbone from upper lumbar spine even thoracic vertebrae, be only capable of between lumbosacral region solid by sacroiliac screws
Fixed, since bone density is relatively low in the screw way of rumpbone position, patient is easy to occur sacroiliac screws loosening after surgery.Rumpbone and pelvis are led to
The screw crossed across articulatio sacroiliaca is affixed directly to that stronger fixation can be provided on the pitman of lumbosacral region, prevents patient from existing
It is postoperative articulatio sacroiliaca pain or sacral screw loosening occur.But across the screw screw way and pitman of articulatio sacroiliaca at certain
Angle, clinically the swing angle of common Universal screw nail is usually unidirectional 20 degree or so, and will be needed across the screw of articulatio sacroiliaca
It will be in some direction（Generally perpendicular to the direction of pitman）Swing angle need unilateral 30 degree or more, and its diameter also compares
It is larger, generally require 7-10mm.So clinically needing a kind of major diameter, and it is capable of providing in a certain direction larger
Swing angle Universal screw nail.
Invention content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provides a kind of simple in structure, installation, user
Just, of low cost, shaft diameter is big, a direction can wide-angle lateral deviation, it is structurally stable can the universal spiral shell of wide-angle lateral-deviation type
Nail.
Technical solution is used by the utility model solves above-mentioned the deficiencies in the prior art：
One kind can wide-angle lateral-deviation type Universal screw nail, including including screw base and ball screw, screw base top is equipped with and wears
If the U-lag of stick, it is equipped with longitudinally through pilot hole in screw base, ball-and-socket, bulb spiral shell are equipped in the pilot hole of screw base lower part
The bulb of nail with ball-and-socket is matched is installed in ball-and-socket, be equipped in the pilot hole on ball screw bulb top and compress determining for bulb
Position pressure ring, the screw base inner wall of U-lag both sides are equipped with the internal thread for installing plug screw；It is characterized in that the screw base
Lower face is, at the inclined-plane at 20-35 degree angle, the ball screw includes rivet nut and bulb, rivet nut upper end with screw base axis
Equipped with Joining clasp, the bulb is：Equipped with spherical outside surface and the matched ball collar of ball-and-socket, the interior survey face of ball collar is and nail
The madial wall on the matched cylindrical surface in body upper end, ball collar is equipped with and the matched annular engaging slot of Joining clasp, spherical shape
Ring lower part is circumferentially evenly equipped with the buffering notch of lower end perforation；Ball collar is on end packed into screw base by screw base top, in spiral shell
Nail seat inward turning goes to level, is matched with ball-and-socket；Rivet nut is packed by the lower part of screw base in screw base, and punching press ball collar makes nail
Body upper end enters in ball collar, and Joining clasp is caught in annular engaging slot, is packed into positioning pressure ring.
Positioning pressure ring outer wall described in the utility model is equipped with positioning protrusion, in the pilot hole above the ball-and-socket
Equipped with the matched locating groove of positioning protrusion.When positioning pressure ring is packed into screw base, is compressed bulb, convex card lifting
It closes in locating groove, structure is more firm.
Ball collar top described in the utility model is circumferentially evenly equipped with the upper buffering notch of upper end perforation.Upper buffering notch
It is alternately distributed in ball collar circumferential direction with buffering notch.
The diameter of ball collar described in the utility model is same as or slightly smaller than ball-and-socket diameter with ball-and-socket diameter（Small 1-100
Micron）；Opening diameter of the ball-and-socket on screw base lower end inclined-plane is less than ball-and-socket diameter, usually 0.5-3 millimeters small.
The utility model is since screw base lower face is, axially at the inclined-plane at 20-35 degree angle, ball screw can with screw base
To realize unilateral large angle pendulum；Since bulb is seperated design with rivet nut, ball collar is packed on the upside of screw base, Ke Yibao
Demonstrate,prove requirement across femoral neck cannulated screw to shaft diameter, the utility model have it is simple in structure, it is installation, easy to use, it is at low cost
Honest and clean, shaft diameter is big, a direction can wide-angle lateral deviation, the advantages that stabilized structure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is partial enlarged view at the A of Fig. 1 sheets.
Fig. 3 is the decomposition texture schematic diagram of the utility model.
Specific implementation mode
It is as shown in Figs. 1-3 can wide-angle lateral-deviation type Universal screw nail, including including screw base 2 and ball screw, screw base 2
Top is equipped with the U-lag 5 for wearing stick, and longitudinally through pilot hole is equipped in screw base 2, is set in the pilot hole of 2 lower part of screw base
Have a ball-and-socket, the bulb of ball screw with ball-and-socket is matched is installed in ball-and-socket, set in the pilot hole on ball screw bulb top
There are the positioning pressure ring 6 for compressing bulb, 2 inner wall of screw base of 5 both sides of U-lag to be equipped with the internal thread 1 for installing plug screw；It is described
2 lower face of screw base be and screw base axis（It is axial）At the inclined-plane 3 at 20-35 degree angle, the ball screw includes rivet nut 4
And bulb, 4 upper end of rivet nut are equipped with Joining clasp 11, the bulb is：Equipped with spherical outside surface and the matched ball collar of ball-and-socket
7, the interior survey face of ball collar 7 is to be matched with rivet nut upper end（Diameter is identical）Cylindrical surface, the madial wall of ball collar is equipped with
With the matched annular engaging slot of Joining clasp, 7 lower part of ball collar is circumferentially evenly equipped with the buffering notch 10 of lower end perforation, ball collar
7 tops are circumferentially evenly equipped with the upper buffering notch 9 of upper end perforation；Upper buffering notch 9 is circumferentially submitted with buffering notch 10 in ball collar
For being uniformly distributed.Ball collar 7 is on end packed into screw base by screw base top, in screw base（At ball-and-socket）Inward turning goes to water
It puts down, matched with ball-and-socket；Rivet nut upper end is packed by the lower part of screw base in screw base, and punching press ball collar makes rivet nut upper end
Into in ball collar, Joining clasp card 11 enters in annular engaging slot, is packed into positioning pressure ring.It is set on 6 outer wall of positioning pressure ring
There is positioning protrusion 8, is equipped with and 8 matched locating groove of positioning protrusion in the pilot hole above the ball-and-socket.Positioning is pressed
When ring is packed into screw base, compresses bulb, positioning protrusion 8 is fastened in locating groove, and structure is more firm.The ball collar
Diameter and ball-and-socket diameter be same as or slightly smaller than ball-and-socket diameter（It is 1-100 microns small）；The ball-and-socket is on screw base lower end inclined-plane
Opening diameter be less than ball-and-socket diameter, usually it is 0.5-3 millimeters small.
The utility model is since screw base lower face is, axially at the inclined-plane at 20-35 degree angle, ball screw can with screw base
To realize unilateral large angle pendulum；Since bulb is seperated design with rivet nut, ball collar is packed on the upside of screw base, Ke Yibao
Demonstrate,prove requirement across femoral neck cannulated screw to shaft diameter, the utility model have it is simple in structure, it is installation, easy to use, it is at low cost
Honest and clean, shaft diameter is big, a direction can wide-angle lateral deviation, the advantages that stabilized structure.
Claims (3)
1. one kind can wide-angle lateral-deviation type Universal screw nail, including including screw base and ball screw, screw base top is equipped with and wears
The U-lag of stick, screw base is interior to be equipped with longitudinally through pilot hole, and ball-and-socket, ball screw are equipped in the pilot hole of screw base lower part
Bulb with ball-and-socket is matched is installed in ball-and-socket, the positioning for compressing bulb is equipped in the pilot hole on ball screw bulb top
Pressure ring, the screw base inner wall of U-lag both sides are equipped with the internal thread for installing plug screw；It is characterized in that under the screw base
End face is, at the inclined-plane at 20-35 degree angle, the ball screw includes rivet nut and bulb, and rivet nut upper end is set with screw base axis
There are the Joining clasp, the bulb to be：Equipped with spherical outside surface and the matched ball collar of ball-and-socket, the interior survey face of ball collar is and rivet nut
The madial wall on the matched cylindrical surface in upper end, ball collar is equipped with and the matched annular engaging slot of Joining clasp, ball collar
Lower part is circumferentially evenly equipped with the buffering notch of lower end perforation.
2. according to claim 1 can wide-angle lateral-deviation type Universal screw nail, it is characterised in that the positioning pressure ring outer wall
It is equipped with positioning protrusion, is equipped with and the matched locating groove of positioning protrusion in the pilot hole above the ball-and-socket.
3. according to claim 1 can wide-angle lateral-deviation type Universal screw nail, it is characterised in that the ball collar top week
To the upper buffering notch for being evenly equipped with upper end perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720645836.6U CN207821892U (en) | 2017-06-06 | 2017-06-06 | One kind can wide-angle lateral-deviation type Universal screw nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720645836.6U CN207821892U (en) | 2017-06-06 | 2017-06-06 | One kind can wide-angle lateral-deviation type Universal screw nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207821892U true CN207821892U (en) | 2018-09-07 |
Family
ID=63383739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720645836.6U Active CN207821892U (en) | 2017-06-06 | 2017-06-06 | One kind can wide-angle lateral-deviation type Universal screw nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207821892U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109394323A (en) * | 2018-12-25 | 2019-03-01 | 上海斯潘威生物技术有限公司 | A kind of self-locking Universal screw nail structure for internal fixation of spine |
| CN111248992A (en) * | 2019-05-05 | 2020-06-09 | 浙江德康医疗器械有限公司 | Multifunctional screw |
| WO2020135363A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市先赞科技有限公司 | Bending part of endoscope, and endoscope |
| WO2020135361A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市先赞科技有限公司 | Endoscope |
| WO2020135362A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市先赞科技有限公司 | Bending part of endoscope, and endoscope |
-
2017
- 2017-06-06 CN CN201720645836.6U patent/CN207821892U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109394323A (en) * | 2018-12-25 | 2019-03-01 | 上海斯潘威生物技术有限公司 | A kind of self-locking Universal screw nail structure for internal fixation of spine |
| WO2020135363A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市先赞科技有限公司 | Bending part of endoscope, and endoscope |
| WO2020135361A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市先赞科技有限公司 | Endoscope |
| WO2020135362A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市先赞科技有限公司 | Bending part of endoscope, and endoscope |
| CN111248992A (en) * | 2019-05-05 | 2020-06-09 | 浙江德康医疗器械有限公司 | Multifunctional screw |
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