CN103126761A - Bone screw - Google Patents
Bone screw Download PDFInfo
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- CN103126761A CN103126761A CN2013100987292A CN201310098729A CN103126761A CN 103126761 A CN103126761 A CN 103126761A CN 2013100987292 A CN2013100987292 A CN 2013100987292A CN 201310098729 A CN201310098729 A CN 201310098729A CN 103126761 A CN103126761 A CN 103126761A
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- screw
- bolt
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- bone screw
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Abstract
The invention discloses a bone screw which comprises a bolt cap and a bolt rod. A free end of the bolt rod forms a conical bolt head. The bone screw is characterized in that three cutting grooves are formed in the bolt head and extend along an axial direction, the cutting grooves divide the bolt head into three blade openings, and a transition portion which is provided with at least two angles is formed in the bolt head along the axial direction. An installation hole is formed in the bolt cap along the axial direction. The bolt rod and the bolt head are made of 00Cr18Ni14Mo3 stainless steel materials or Ti6AI4V titanium alloy materials. The bone screw has the advantages that the bolt head is provided with the cutting grooves, the three blade openings work simultaneously, the transition portion with at least two angles is formed, self-correcting capability and locating accuracy of a bolt are greatly improved, and therefore operation difficulty is reduced, the installation hole in the bolt cap can be fixedly connected with a pressure device and a take-out device, operation is convenient, the bolt rod and the bolt head possess strong corrosion resistance, safety of an orthopedic surgery is improved, and life safety of a fractured person is guaranteed.
Description
Technical field
The present invention relates to a kind of bone screw, belong to the orthopedic medical device technical field.
Background technology
In bone surgery, often need to utilize blade plate and bone screw that fracture site is implemented fixing.Existing bone screw commonly used, its head mostly adopts 90 ° of single Transition Designs, referring to Fig. 1, and find in long-term use, the bone screw of this kind structure is relatively poor from the rectification ability, can not guarantee the positioning accuracy of screw, thereby improve the difficulty of operation technique, even can exert an adverse impact to art section.
In addition, existing bone screw all can only play fixing effect mostly, and can't realize the effect of two plane of disruption tension pressurizations of knochenbruch has been affected the healing of skeleton, thereby extended patient's misery.
Summary of the invention
Be to solve the deficiencies in the prior art, the object of the present invention is to provide a kind of positioning accuracy high, can easily enter pre-hole, the bone screw of convenient pressurization again simultaneously.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of bone screw, have screw cap, shank of screw, the free end of aforementioned shank of screw is formed with conical head of screw, it is characterized in that, aforementioned head of screw has three rows that extend vertically and cuts groove, aforementioned row cuts groove head of screw is divided into three cutting edges, and aforementioned head of screw also is formed with at least 2 angle transition parts vertically.
Aforesaid bone screw is characterized in that, aforementioned head of screw is formed with 2 angle transition parts vertically.
Aforesaid bone screw is characterized in that, aforementioned row cuts groove spiral extension vertically.
Aforesaid bone screw is characterized in that, aforementioned row cuts groove and evenly distributes on head of screw.
Aforesaid bone screw is characterized in that, has an axial installing hole on aforementioned screw cap.
Aforesaid bone screw is characterized in that, aforementioned installing hole is tapped hole.
Aforesaid bone screw is characterized in that, aforementioned shank of screw is cylindrical.
Aforesaid bone screw is characterized in that, aforementioned shank of screw and head of screw are made by 00Cr18Ni14Mo3 stainless steel or Ti6AI4V titanium alloy material.
Usefulness of the present invention is: head of screw carries row and cuts groove, and three cutting edges are worked simultaneously, and are formed with at least 2 angle transition parts, have greatly improved rectification ability certainly and the positioning accuracy of screw, thereby have reduced the operation technique difficulty; Have tapped installing hole on screw cap, can firmly be connected with pressue device or withdrawing device handled easily; Shank of screw and head of screw are made by 00Cr18Ni14Mo3 stainless steel or Ti6AI4V titanium alloy material, and corrosion resistance is strong, has improved the safety of bone surgery, has guaranteed the life security of fracture personnel.
Description of drawings
Fig. 1 is the structural representation of existing bone screw;
Fig. 2 is the structural representation of a specific embodiment of bone screw of the present invention;
Fig. 3 is the right view of the bone screw in Fig. 2.
The implication of Reference numeral in figure: the 1-screw cap, the 2-shank of screw, the 3-head of screw, 301-row cuts groove, 302-cutting edge, 303-angle transition part.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is done concrete introduction.
With reference to Fig. 2 and Fig. 3, bone screw of the present invention comprises: screw cap 1 and shank of screw 2, the free end of shank of screw 2 is formed with conical head of screw 3, and head of screw 3 has three rows that extend vertically and cuts groove 301, and row cuts groove 301 can discharge the chip that produces when boring bone timely; Row cuts groove 301 head of screw 3 is divided into three cutting edges 302, not only facilitates screw to screw in, and the multiple-cutting-edge mouth is worked simultaneously and can be accelerated the speed of synthetism; In addition, head of screw 3 also is formed with at least 2 angle transition parts 303 vertically, only have the bone screw of 90 ° of single Transition Designs to compare with common head, more easily enter pre-hole, reduced the difficulty of operation technique, and the design that head self tapping row cuts groove 301 has certain rectification ability certainly, guaranteed the positioning accuracy of screw.
As a kind of preferred scheme, head of screw 3 is formed with 2 angle transition parts 303 vertically, and is simple in structure, the convenient manufacturing, and can guarantee that screw easily enters pre-hole.
As a kind of preferred scheme, row cuts groove 301 spiral extension vertically, and the chip that produces in the time of can guaranteeing to bore bone smoothly, be discharged from timely.
More preferably, row cuts groove 301 evenly distribution on head of screw 3.
For convenient, bone screw of the present invention is connected with pressue device or withdrawing device, as a kind of preferred scheme, has an axial installing hole (not shown) on screw cap 1.
More preferably, installing hole is tapped hole, and is not only easy to connect, and can guarantee the fastness that connects.
As a kind of preferred scheme, shank of screw 2 is cylindrical.
In order to improve the safety of bone surgery, guarantee the life security of fracture personnel, shank of screw 2 and head of screw 3 adopt the strong material of corrosion resistance to make, and specifically this material can be the 00Cr18Ni14Mo3 rustless steel, perhaps the Ti6AI4V titanium alloy.
Need to prove, above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (8)
1. bone screw, have screw cap, shank of screw, the free end of above-mentioned shank of screw is formed with conical head of screw, it is characterized in that, above-mentioned head of screw has three rows that extend vertically and cuts groove, above-mentioned row cuts groove head of screw is divided into three cutting edges, and above-mentioned head of screw also is formed with at least 2 angle transition parts vertically.
2. bone screw according to claim 1, is characterized in that, above-mentioned head of screw is formed with 2 angle transition parts vertically.
3. bone screw according to claim 1, is characterized in that, above-mentioned row cuts groove spiral extension vertically.
4. bone screw according to claim 3, is characterized in that, above-mentioned row cuts groove and evenly distributes on head of screw.
5. bone screw according to claim 1, is characterized in that, has an axial installing hole on above-mentioned screw cap.
6. bone screw according to claim 5, is characterized in that, above-mentioned installing hole is tapped hole.
7. bone screw according to claim 1, is characterized in that, above-mentioned shank of screw is cylindrical.
8. the described bone screw of according to claim 1 to 7 any one, is characterized in that, above-mentioned shank of screw and head of screw are made by 00Cr18Ni14Mo3 stainless steel or Ti6AI4V titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100987292A CN103126761A (en) | 2013-03-26 | 2013-03-26 | Bone screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100987292A CN103126761A (en) | 2013-03-26 | 2013-03-26 | Bone screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103126761A true CN103126761A (en) | 2013-06-05 |
Family
ID=48487657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100987292A Pending CN103126761A (en) | 2013-03-26 | 2013-03-26 | Bone screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103126761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037917A (en) * | 2016-06-29 | 2016-10-26 | 宁波慈北医疗器械有限公司 | Temporomandibular joint titanium-alloy anchor nail |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414966A (en) * | 1981-04-09 | 1983-11-15 | Ace Orthopedic Manufacturing, Inc. | Fixation pin |
| CN2373064Y (en) * | 1999-02-09 | 2000-04-12 | 石忠立 | Self-tapping type hollow pressure screw for treating fracture of neck of femur |
| US6306140B1 (en) * | 2001-01-17 | 2001-10-23 | Synthes (Usa) | Bone screw |
| CN2840943Y (en) * | 2005-09-22 | 2006-11-29 | 全微精密股份有限公司 | Improved structure self-driving type bone screw |
| EP2218415A1 (en) * | 2009-02-16 | 2010-08-18 | Stryker Trauma AG | Bone screw and production method therefor |
| CN203089348U (en) * | 2013-03-26 | 2013-07-31 | 江苏荷普医疗器械有限公司 | Bone screw |
-
2013
- 2013-03-26 CN CN2013100987292A patent/CN103126761A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414966A (en) * | 1981-04-09 | 1983-11-15 | Ace Orthopedic Manufacturing, Inc. | Fixation pin |
| CN2373064Y (en) * | 1999-02-09 | 2000-04-12 | 石忠立 | Self-tapping type hollow pressure screw for treating fracture of neck of femur |
| US6306140B1 (en) * | 2001-01-17 | 2001-10-23 | Synthes (Usa) | Bone screw |
| CN2840943Y (en) * | 2005-09-22 | 2006-11-29 | 全微精密股份有限公司 | Improved structure self-driving type bone screw |
| EP2218415A1 (en) * | 2009-02-16 | 2010-08-18 | Stryker Trauma AG | Bone screw and production method therefor |
| CN203089348U (en) * | 2013-03-26 | 2013-07-31 | 江苏荷普医疗器械有限公司 | Bone screw |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037917A (en) * | 2016-06-29 | 2016-10-26 | 宁波慈北医疗器械有限公司 | Temporomandibular joint titanium-alloy anchor nail |
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Application publication date: 20130605 |