CN204909616U - Hollow locking screw - Google Patents
Hollow locking screw Download PDFInfo
- Publication number
- CN204909616U CN204909616U CN201520563187.6U CN201520563187U CN204909616U CN 204909616 U CN204909616 U CN 204909616U CN 201520563187 U CN201520563187 U CN 201520563187U CN 204909616 U CN204909616 U CN 204909616U
- Authority
- CN
- China
- Prior art keywords
- nail
- seat
- notch
- connecting rod
- thin connecting
- 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.)
- Active
Links
- 230000007704 transition Effects 0.000 claims abstract description 8
- 230000002349 favourable effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Portable Nailing Machines And Staplers (AREA)
Abstract
The utility model relates to a hollow locking screw has the screw body, the screw body comprises with the nail pole is integrative the nail seat, the head equipartition of nail pole has three group's cutting edges, set up in the axis direction of nail seat with the guide pin seat assorted notch of guide pin, the nail seat is connected through thin connecting rod between the pole with following closely, the cylinder hole has been seted up in the direction of nail pole edge axis, the cylinder hole extends to the notch, and communicates with the notch, through the round platform transition between thin connecting rod and the nail seat, through the transition of interior concave circular arc between thin connecting rod and the nail pole. The utility model discloses changing current screw into hollow, can squeezing into through the guide pin, be favorable to the interim fixed of ossiculum piece more, it resets to guarantee does not lose.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly the hollow lock screw of one.
Background technology
Lock screw is used for coordinating with locking steel plate, has better angulation stability, but lock screw of the prior art is temporary fixed for there being the position of little fracture fragments not do.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art existence, provides the hollow lock screw that a kind of structure is simple, easy to operate.
The technical scheme realizing this utility model object is: a kind of hollow lock screw, has screw body; Described screw body is integrally made up of nail seat and nail bar; The head of described nail bar is evenly equipped with three groups of blades; The central axis direction of described nail seat offers the notch matched with the guide pin seat of guide pin, be connected by thin connecting rod between nail seat with nail bar; Described nail bar offers cylindrical hole along on direction, axis; Described cylindrical hole extends to notch, and is communicated with notch; By round platform transition between described thin connecting rod and nail seat, by indent arc transition between thin connecting rod and nail bar.
The side face of nail seat described in technique scheme is double end taper thread, the side face of nail bar is regular screw threads.
Angle α between the extended line of the axisymmetric bus of round platform described in technique scheme is 120 °.
Described in technique scheme, the end face of nail seat has font mark.
After adopting technique scheme, this utility model has following positive effect:
Existing screw changes into hollow by this utility model, can be squeezed into by guide pin, temporary fixed advantageously in ossiculum block, ensures to reset not lose.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, this utility model is described in further detail, wherein
Fig. 1 is structural representation of the present utility model;
Attached number in the figure is: nail seat 1, nail bar 2, blade 3, notch 4, thin connecting rod 5, cylindrical hole 6, round platform 7, interior concave arc 8.
Detailed description of the invention
(embodiment 1)
See Fig. 1, this utility model has screw body; Screw body is integrally made up of nail seat 1 and nail bar 2; The head of nail bar 2 is evenly equipped with three groups of blades 3; The central axis direction of nail seat 1 offers the notch 4 matched with the guide pin seat of guide pin, be connected by thin connecting rod 5 between nail seat 1 with nail bar 2; Nail bar 2 offers cylindrical hole 6 along on direction, axis; Cylindrical hole 6 extends to notch 4, and is communicated with notch 4; By round platform 7 transition between thin connecting rod 5 and nail seat 1, by the transition of interior concave arc 8 between thin connecting rod 5 and nail bar 2.Angle α between the extended line of the axisymmetric bus of round platform 7 is 120 °.
The side face of nail seat 1 is double end taper thread, the side face of nail bar 2 is regular screw threads.The end face of nail seat 1 has font mark.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to this utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a hollow lock screw, has screw body; Described screw body is made up of nail seat (1) and nail bar (2) one; The head of described nail bar (2) is evenly equipped with three groups of blades (3); It is characterized in that: the central axis direction of described nail seat (1) offers the notch (4) matched with the guide pin seat of guide pin, be connected by thin connecting rod (5) between nail seat (1) with nail bar (2); Described nail bar (2) is along direction, axis offering cylindrical hole (6); Described cylindrical hole (6) extends to notch (4), and is communicated with notch (4); By round platform (7) transition between described thin connecting rod (5) and nail seat (1), by interior concave arc (8) transition between thin connecting rod (5) and nail bar (2).
2. hollow lock screw according to claim 1, is characterized in that: the side face of described nail seat (1) is double end taper thread, the side face of nail bar (2) is regular screw threads.
3. hollow lock screw according to claim 2, is characterized in that: the angle α between the extended line of the axisymmetric bus of described round platform (7) is 120 °.
4. hollow lock screw according to claim 3, is characterized in that: the end face of described nail seat (1) has font mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563187.6U CN204909616U (en) | 2015-07-30 | 2015-07-30 | Hollow locking screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563187.6U CN204909616U (en) | 2015-07-30 | 2015-07-30 | Hollow locking screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204909616U true CN204909616U (en) | 2015-12-30 |
Family
ID=54958809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520563187.6U Active CN204909616U (en) | 2015-07-30 | 2015-07-30 | Hollow locking screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204909616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852951A (en) * | 2016-05-04 | 2016-08-17 | 高嘉锴 | Hollow screw for restoring damaged ligaments or muscle tendons |
| CN107485437A (en) * | 2017-09-30 | 2017-12-19 | 苏州欣荣博尔特医疗器械有限公司 | Universal lock bone screw and use its common locking bone fracture plate |
-
2015
- 2015-07-30 CN CN201520563187.6U patent/CN204909616U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852951A (en) * | 2016-05-04 | 2016-08-17 | 高嘉锴 | Hollow screw for restoring damaged ligaments or muscle tendons |
| CN107485437A (en) * | 2017-09-30 | 2017-12-19 | 苏州欣荣博尔特医疗器械有限公司 | Universal lock bone screw and use its common locking bone fracture plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |