CN102240224A - Bone nail and tool using same - Google Patents
Bone nail and tool using same Download PDFInfo
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- CN102240224A CN102240224A CN2011101336904A CN201110133690A CN102240224A CN 102240224 A CN102240224 A CN 102240224A CN 2011101336904 A CN2011101336904 A CN 2011101336904A CN 201110133690 A CN201110133690 A CN 201110133690A CN 102240224 A CN102240224 A CN 102240224A
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- nail
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- instrument
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- head
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Abstract
The invention discloses a bone nail and a tool using the same. The bone nail comprises a rod-shaped body, wherein the rod-shaped body is equipped with a head part and a tail part, a tool socket is arranged on the end of the tail part and at least one axially upward extension convex is formed on a side of the rod-shaped body. After the bone nail is nailed into bone by a special tool, the convex can restrict the rotation and retreating movement of the bone nail, thus guaranteeing that the bone nail is firmly fixed on bone.
Description
Technical field
The present invention relates to surgical operating instrument, relate to a kind of nail particularly and use the instrument of this nail.
Background technology
Nail is a skeletal fixation device commonly used in the bone surgery.Existing nail, the similar of major part and normal screws nail, it comprises a screw rod and a spiral head, is provided with screw thread on the screw rod outer surface, the spiral head end is provided with the groove for the rotation of instruments such as screwdriver.Yet, existing nail, after implantation, the phenomenon that easy generation gets loose from skeleton, the patient will implant again like this, brings misery.
Summary of the invention
The object of the present invention is to provide a kind of novel nail, to solve the above-mentioned problems in the prior art.Bone nail structure among the present invention is reasonable in design, can prevent to get loose.
Technical scheme provided by the invention is as follows:
A kind of nail comprises a shaft-like body, and this shaft-like body has a head and an afterbody, and described tail end is provided with tool receptacle, it is characterized in that: this shaft-like body side is provided with at least one and axially goes up the projection of extending.
In a preferred embodiment of the present invention, described projection is twice, is located at symmetrically on the body afterbody side.
In a preferred embodiment of the present invention, described projection comprises a plurality of barb-shaped pointed tooths of arranging in turn.
In a preferred embodiment of the present invention, each pointed tooth is a barb-shaped, comprises an end face, two sides and an inclined plane, and this end face and axis normal or angle are less than 90 degree, or each face all is the barb-shaped pointed tooth of curved surface.
In a preferred embodiment of the present invention, the end of each pointed tooth is formed lines that extended to caudal directions by head, and described lines are straight line or waveform or arc or parabola.
In a preferred embodiment of the present invention, described pointed tooth becomes big by head gradually to tail dimension.Being provided with like this is beneficial in the pointed tooth insertion skeleton.
In a preferred embodiment of the present invention, described protruding distributing position is a tail end to the position from the 1/3-1/10 body length of distance tail end.
In a preferred embodiment of the present invention, described tool receptacle is yi word pattern or cross or star or polygon groove, or is screwed hole.
In a preferred embodiment of the present invention, described screw axes upwards is provided with through hole.
In of the present invention one better embodiment, the afterbody end of described through hole is provided with female thread.
A kind of nail instrument, comprise a stock instrument and a sleeve barrel tool, described stock instrument comprises that a bar portion and is used to rotate the rotating part of this bar portion, and the bar portion end of wherein said stock instrument is provided with the shape that cooperates with the tool receptacle of nail tail end; Described sleeve barrel tool comprises a sleeve and a lateral projection portion, and described stock instrument can insert in the sleeve barrel tool.
By foregoing description as can be known, the invention provides a kind of nail, this shaft-like body side is provided with at least one and axially goes up the projection of extending, hammer into skeleton by special-purpose nail instrument after, this projection can limit the rotation of nail; This projection is that a plurality of pointed tooths of arranging in turn form, and the end face of pointed tooth and axis normal or angle are less than 90 degree, and pointed tooth plays agnail like this, prevents that nail from retreating, because this nail can not retreat and can not rotate, makes this nail firmly be fixed on the skeleton.
Because nail is little, need to adopt specific purpose tool just can operate.The nail tail end is provided with tool receptacle, and this tool receptacle is yi word pattern or cross or star or polygon groove.For adopting helicitic texture, nail is difficult for separating with instrument in operating process like this but more preferably.This nail instrument comprises a stock instrument and a sleeve barrel tool, and the stock instrument is used to connect nail, and sleeve barrel tool is convenient to hand-held or is used on orientation tools such as sight.
Description of drawings
Fig. 1 is the structural representation in the front of the embodiment of the invention one nail;
Fig. 2 is the perspective view of the embodiment of the invention one nail;
Fig. 3 is the plan structure sketch map of the nail of the embodiment of the invention one;
Fig. 4 is the structural representation in the front of the embodiment of the invention two nails;
Fig. 5 is the perspective view of the embodiment of the invention two nails;
Fig. 6 is the plan structure sketch map of the nail of the embodiment of the invention two;
Fig. 7 is the structural representation of sleeve barrel tool;
Fig. 8 is the structural representation of stock instrument;
Fig. 9 is the structural representation that sleeve barrel tool and stock instrument are used in combination.
The specific embodiment
Embodiment one nail
Embodiments of the invention one, referring to figs. 1 through Fig. 3, nail 100 comprises a shaft-like body, and the one end is a head 110, and the other end is an afterbody 120.Nail 100 is preferably made by biocompatible materials.For example rustless steel, titanium, chromium or its alloy, and suitable ceramic material or macromolecule polymer material.The cross section of described shaft-like body is circular, yet, be not limited thereto, also can ellipse or star or polygon or other shape that helps inserting.Head 110 is taper, is arranged with the upwardly extending projection of twice axle on the side of afterbody 20.
This projection is that a plurality of triangle pointed tooths 121 are formed, and to 1/5 body length position distribution from the distance tail end, and the size of pointed tooth becomes greatly to afterbody gradually by head from tail end for it, and the upper surface of last pointed tooth of afterbody is the end of afterbody.The end of each pointed tooth formed one by head to the caudal directions lines a of offset axis gradually.In the present embodiment, these lines a is a straight line, and in other embodiments, these lines can be waveform or arc or parabola.Each pointed tooth 121 comprises 1211, two sides 1213 of end face and an inclined plane 1212.Wherein inclined plane 1212 is outward-dipping to caudal directions by cephalad direction, and end face 1211 and axis normal,, after hammering into skeleton, end face 1211 plays the agnail effect like this, can prevent that whole nail from withdrawing from skeleton.In the present embodiment, end face 1211 and axis normal, in other embodiments, end face 1211 also can acutangulate with body axis, and it also can be concave surface, has formed the agnail shape like this.
This shaft-like body is provided with through hole 130 along axis direction, and it can be used for pouring into bone cement in osseous tissue, and the bone cement that is filled in the osseous tissue is fixing together with the bone cement of staying in the nail through hole, and the fastness of nail is improved; Or not pouring into bone cement, osseous tissue is grown in through hole, also can improve fastness.
Through hole 130 is provided with female thread 140 by an end of afterbody 120, and it is used for and instrument cooperates, and nail can be tufted in the skeleton, below also will describe in detail.And in common nail design, because bar portion is provided with external screw thread, its socket can not be designed to the screw thread mouth shape, otherwise nail easily unclamps from skeleton when throw breaks away from.
In other embodiments, through hole also can be designed to the tool receptacle of other shape by an end of afterbody 120.As the strip groove, cross groove, star, triangle, square, polygon etc.Yet the design of screw thread mouth is best, because of it helps nail and instrument strong bonded, difficult drop-off.
Embodiment two nails
Referring to Fig. 4 to Fig. 6, the structure of the nail of present embodiment and embodiment one is basic identical, and different is that in the present embodiment, projection has only one.
Embodiment three nails
The structure of the nail of present embodiment and embodiment one is basic identical, and different is that in the present embodiment, projection is three, and is equidistant evenly distributed on the outer peripheral face of shaft-like body.(not shown)
Embodiment four stock instruments
Referring to Fig. 8, this stock instrument 200 comprises an elongated stem 210 and a head that is used to rotate 220, and wherein this bar portion end 210 is provided with the external screw thread 211 with the screw-internal thread fit of nail 100 afterbodys.Head 220 is a gear shape, and outer peripheral edges are provided with serration, so that with hands dwang portion 210 easily.
In other embodiments, bar portion 210 ends also can be designed to other shape, for example with the strip groove of nail through-hole tail, and cross groove, star, triangle, square, the shape that shapes such as polygon are adaptive.
Embodiment five sleeve barrel tools
Referring to Fig. 7, this sleeve tool comprises a bar portion 310 and a head 320, wherein this bar portion is provided with an axial through hole 311, the internal diameter of this through hole 311 greater than stock instrument 200 the external diameter of bar portion 210, make the bar portion 210 of stock instrument 200 can insert in this through hole 311.This head is one and bar portion 310 vertical cross bars 320, and bar portion 310 promptly is installed on the bottom surface at these cross bar 320 middle parts.The end face at cross bar 320 middle parts is provided with a groove 321, and the distance between the dual- side 3211 and 3212 of groove 321 is greater than the external diameter of the head 220 of stock instrument 200, and the head 220 of stock instrument 200 can be contained in this groove like this.Bottom portion of groove also is provided with one and through hole 311 corresponding opening 322 of bar portion 310.
During use,, earlier nail 100 is screwed in bar portion 210 ends of stock instrument 200 referring to Fig. 9, then nail and stock instrument are all inserted in the bar portion 310 of sleeve tool 300, after the skeleton location, by the mode of beaing nail 100 is hammered into skeleton, then 200 rotations of stock instrument are withdrawed from.Because the position-limiting action of the projection of nail 100, nail can not be driven to rotate and become flexible in this process.
Above-mentioned only is specific embodiments of the invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (10)
1. a nail comprises a shaft-like body, and this shaft-like body has a head and an afterbody, and described tail end is provided with tool receptacle, it is characterized in that: this shaft-like body side is provided with at least one and axially goes up the projection of extending.
2. a kind of nail as claimed in claim 1 is characterized in that: described projection is twice, is located at symmetrically on the side of body afterbody.
3. a kind of nail as claimed in claim 1 is characterized in that: described protruding distributing position is a tail end to the position from the 1/3-1/10 body length of distance tail end.
4. a kind of nail as claimed in claim 1 or 2 is characterized in that: described projection comprises a plurality of barb-shaped pointed tooths of arranging in turn.
5. a kind of nail as claimed in claim 4 is characterized in that: the end of each pointed tooth is formed a curve that is extended to caudal directions by head, and described curve is straight line or waveform or arc or parabola.
6. a kind of nail as claimed in claim 4 is characterized in that: described pointed tooth becomes big by head gradually to tail dimension.
7. a kind of nail as claimed in claim 4 is characterized in that: each pointed tooth comprises an end face, two sides and an inclined plane, and this end face and axis normal or angle are less than 90 degree.
8. a kind of nail as claimed in claim 1 is characterized in that: described tool receptacle is yi word pattern or cross or star or polygon groove, or is screwed hole.
9. a kind of nail as claimed in claim 1 is characterized in that: described screw axes upwards is provided with through hole, and the afterbody end of described through hole is provided with female thread.
10. nail instrument, comprise a stock instrument and a sleeve barrel tool, described stock instrument comprises that a bar portion and is used to rotate the rotating part of this bar portion, is characterized in that: the bar portion end of described stock instrument is provided with the shape that cooperates with the tool receptacle of nail tail end; Described sleeve barrel tool comprises a sleeve, and described stock instrument can insert in the sleeve barrel tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101336904A CN102240224A (en) | 2011-05-19 | 2011-05-19 | Bone nail and tool using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101336904A CN102240224A (en) | 2011-05-19 | 2011-05-19 | Bone nail and tool using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102240224A true CN102240224A (en) | 2011-11-16 |
Family
ID=44958598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101336904A Pending CN102240224A (en) | 2011-05-19 | 2011-05-19 | Bone nail and tool using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240224A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6280448B1 (en) * | 1998-08-26 | 2001-08-28 | Linvatec Corporation | Cannulated tissue anchor system |
| US6302885B1 (en) * | 1998-01-15 | 2001-10-16 | Holger K. Essiger | Bone nail |
| CN2772460Y (en) * | 2005-03-25 | 2006-04-19 | 宋朝晖 | Hollow screw drawing-out device |
| CN1891172A (en) * | 2005-07-08 | 2007-01-10 | 比德曼莫泰赫有限公司 | Bone anchoring element |
| CN201082189Y (en) * | 2007-09-28 | 2008-07-09 | 陈唯宁 | Bone nail |
| CN202086567U (en) * | 2011-05-19 | 2011-12-28 | 黄长明 | Bone nail and tool for using same |
-
2011
- 2011-05-19 CN CN2011101336904A patent/CN102240224A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6302885B1 (en) * | 1998-01-15 | 2001-10-16 | Holger K. Essiger | Bone nail |
| US6280448B1 (en) * | 1998-08-26 | 2001-08-28 | Linvatec Corporation | Cannulated tissue anchor system |
| CN2772460Y (en) * | 2005-03-25 | 2006-04-19 | 宋朝晖 | Hollow screw drawing-out device |
| CN1891172A (en) * | 2005-07-08 | 2007-01-10 | 比德曼莫泰赫有限公司 | Bone anchoring element |
| CN201082189Y (en) * | 2007-09-28 | 2008-07-09 | 陈唯宁 | Bone nail |
| CN202086567U (en) * | 2011-05-19 | 2011-12-28 | 黄长明 | Bone nail and tool for using same |
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Application publication date: 20111116 |