CN200977186Y - Jaw bone tractor - Google Patents
Jaw bone tractor Download PDFInfo
- Publication number
- CN200977186Y CN200977186Y CN 200620140176 CN200620140176U CN200977186Y CN 200977186 Y CN200977186 Y CN 200977186Y CN 200620140176 CN200620140176 CN 200620140176 CN 200620140176 U CN200620140176 U CN 200620140176U CN 200977186 Y CN200977186 Y CN 200977186Y
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- CN
- China
- Prior art keywords
- screw rod
- adjusting lever
- traction frame
- movable
- jaw bone
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a jaw bone traction apparatus, which comprises an adjusting rod (1) and a moveable traction frame (2), a skewed tooth (11) is arranged on the upper surface of the adjusting rod (1), the fixed locating plates (3) are respectively arranged at the upper and lower ends of the adjusting rod (1), the moveable traction frame (2) is suited on the adjusting rod (1) and can slide along the adjusting rod (1) back and forth, a moveable locating plate (221) is arranged on the moveable traction frame (2), a screw rod (4) opposite to the moveable traction frame (2) is arranged on the moveable traction frame (2) in a rotating way, the screw rod (4) is limited on the moveable traction frame (2), and the screw rod (4) is meshed with the skewed tooth (11). The adjusting rod (1) is designed to be the arc shape consistent with the outline of the human body jaw bone. The utility model has the advantages of that the structure is simple, the fixing and the adjustment are convenient, the volume is small, the range of the adjusted length is wide and accurate, and the radian of the grown new bone is consistent with the radian of the human body original jaw bone, being convenient for the patient life and the social activity.
Description
Technical field
This utility model belongs to the technical field of medical that is used for Oral and Maxillofacial Surgery and plastic surgery operations, relates in particular to a kind of jaw bone tractor.
Background technology
Jaw bone tractor is to be widely used in Oral and Maxillofacial Surgery and the plastic surgery operations, the know-why of traction apparatus may be summarized to be: after mandibular bone is blocked fully or not exclusively blocks, gradually bone stump is strutted to make with external force and form the gap, utilize pull strength to bring out the osteogenic ability of jawbone self and continue to form new bone and fill this gap, reach the purpose that prolongs mandibular bone.
The patent that relates to jaw bone tractor also has a lot, as a patent No. is that the Chinese utility model patent " a kind of jawbone tractive extender " of ZL95200175.6 (notification number is CN2205709Y) has disclosed the structure so a kind of, a kind of jawbone tractive extender, it comprises tractive extender and holder, the tractive extender is by the adjustment screw rod through central authorities, before, rear slider and yardstick slide bar are formed, before, rear slider is carved with positive hour hands and counter-clockwise female thread respectively and screws in adjustment screw rod through central authorities by positive hour hands and inhour respectively, on, before following yardstick slide bar runs through, on the rear slider, following slide opening, holder is that the bushing type screw rod and the nut that have the Kirschner wire fixture are formed, and this jawbone tractive extender has adjustment and puts many.The structure more complicated of above-mentioned jaw bone tractor, bigger, fixing, all inconvenience to some extent of adjusting of volume.
Also has a kind of jaw bone tractor, include screwed pipe, screw rod, sleeve pipe and by screw bolt seat with constitute the screw rod rotation regulating mechanism with its adjusting rod that is connected by gimbal structure, screw rod is positioned at sleeve pipe, its end passes sleeve bottom and fixes with screw bolt seat, the screwed pipe plug is connected in sleeve pipe and with screw flight, its head is fixed with screw frame and thimble, and sleeve outer wall then is fixed with corresponding screw frame.During use, the turn adjusting rod makes screw bolt seat with threaded rotation, because relative motion, screwed pipe can stretch by relative sleeve pipe, thereby regulates length.That above-mentioned jaw bone tractor has is simple in structure, secured adjusted advantage easily, but the adjusting rod in the jaw bone tractor is longer, and the adjusting portion of the adjusting rod on it only is arranged on a side of jaw bone tractor, so it is fit to toward the length that the direction adjusted is relative, regulating direction should be opposite with the gap direction that jawbone forms, just convenient the adjusting, therefore, it has only a kind of mounting means, is using quite inconvenience.Also have a bit, above-mentioned jaw bone tractor is the vertical bar shape, exposes to cheek during installation, is subjected to accident collision easily, causes the interruption for the treatment of, and causes suffering to patient, and exposes also not attractive in appearancely, has a strong impact on orthobiosis of patient.
So existing jaw bone tractor also can improve further.
Summary of the invention
Technical problem to be solved in the utility model is the scope that provides at above-mentioned prior art present situation that a kind of simple in structure, secured adjusted is convenient, volume is little, regulate a length jaw bone tractor extensively and accurately.
Another technical problem to be solved in the utility model provides the jaw bone tractor that a kind of energy and human body jawbone profile are consistent, and can make the new bone that grows keep the peculiar mandibular bone radian of original human body after the use, so that patient's life and social activity.
This utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of jaw bone tractor, include adjusting lever and movable traction frame, the upper surface that it is characterized in that described adjusting lever is provided with helical teeth, the two ends up and down of adjusting lever respectively are provided with the stationary positioned plate, described movable traction frame is set in also can be along slippage before and after it on the adjusting lever, movable traction frame is provided with can be with the movable positioning plate of slippage before and after the relative adjusting lever of movable traction frame, one screw rod can be located on the movable traction frame by movable relatively traction frame rotationally, this screw rod is limited on the movable traction frame preventing that the movable relatively traction frame of screw rod from moving forward and backward, and described screw rod and helical teeth are nibbled mutually and be equipped with slippage before and after the relative together adjusting lever with screw rod of driving activity traction frame.
Above-mentioned adjusting lever is the arc that matches with human body jawbone profile so that the lower surface of adjusting lever and jawbone are consistent.Because the profile of adjusting lever integral body conforms to the jawbone profile, so use this jaw bone tractor when traction, the new bone that grows conforms to the radian of the original jawbone of human body, and outward appearance can be too not ugly yet when using jaw bone tractor, and daily life, work, study and the doings influence of being convenient to patient are little.
Above-mentioned movable traction frame is made up of screw rod cover and fixing head, and its threaded portion of described screw rod is arranged on the middle part of screw rod; Described screw rod cover bottom has a pre-and post perforative groove, and the threaded portion is corresponding on the profile at the middle part of groove bottom and size and the screw rod, and the profile at the two ends of groove bottom and size and screw rod are corresponding, and the profile on groove top and size and adjusting lever match; The upper end that described fixing head then is fixed on screw rod cover with adjusting lever, screw rod shutoff in groove.Adopt this movable traction frame can make things convenient for us that it is arranged on the adjusting lever, be convenient to assembling.
Above-mentioned fixing head and movable positioning plate are structure as a whole.Certainly also divide body structure, only need this moment fixing head, or other fixed form is fixed on the movable positioning plate and get final product, just increase fixedly operation one by the fixed mode of welding.
Above-mentioned helical teeth is covered with the upper surface of whole adjusting lever.So movable traction frame active scope of adjusting lever relatively becomes big, thereby increases the adjusting range of this activity traction apparatus, makes things convenient for us to use operation.
For convenient fixing head and movable fixing head are fixed on the jawbone, above-mentioned stationary positioned plate laterally protrudes the both sides of adjusting lever, and has a plurality of installing holes on the stationary positioned plate.Above-mentioned movable positioning plate laterally protrudes the both sides of adjusting lever, and has a plurality of installing holes on movable positioning plate.So that it is fixing.
Compared with prior art, advantage of the present utility model is: during use, both sides up and down at patient's jawbone section are fixed together with two stationary positioned plates and a movable positioning plate respectively with tapping screw, during adjusting, rotating screw bolt according to the threaded adjusting operation principle on screw rod and the adjusting lever, and forces the slippage up or down of the relative adjusting lever of movable traction frame, produce the gap, utilize pull strength to bring out the osteogenic ability of jawbone self and continue to form new bone and fill this gap.Because movable traction frame is set on the adjusting lever, and screw rod is positioned at adjusting lever top, so the size of movable traction frame can be designed to the size much smaller than adjusting lever, the length of screw rod can be designed to be far smaller than the length of adjusting lever, therefore screw rod can not expose to cheek, makes things convenient for us to operate; Also have because the characteristics of said structure, we only need to adopt bending process adjusting lever to be designed to the arc that matches with human body jawbone profile, the new bone that grows is conformed to the radian of the original jawbone of human body, and can obviously not expose cheek as the adjusting lever of the major part of jaw bone tractor yet, use to compare with original jaw bone tractor and have more aesthetic property, not conference makes troubles for patient's life study.
Description of drawings
Fig. 1 is the partial sectional view of this utility model embodiment;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the cutaway view of screw rod cover among this utility model embodiment;
Fig. 4 is the vertical view of screw rod cover among this utility model embodiment;
Fig. 5 is the vertical view of fixing head among this utility model embodiment;
Fig. 6 is that the B-B of Fig. 5 is to cutaway view;
Fig. 7 is the cutaway view of movable traction frame among this utility model embodiment;
Fig. 8 is the sketch map of screw rod among this utility model embodiment;
Fig. 9 is the vertical view of stationary positioned plate among this utility model embodiment;
Figure 10 is that the C-C of Fig. 9 is to cutaway view.
The specific embodiment
Embodiment describes in further detail this utility model below in conjunction with accompanying drawing.
A kind of jaw bone tractor shown in Fig. 1～2, include adjusting lever 1 and movable traction frame 2, adjusting lever 1 be have certain thickness tabular, and adjusting lever 1 is the arc that matches with human body jawbone profile so that the lower surface of adjusting lever and jawbone are consistent, because individual difference, we can be according to the arcual adjusting lever 1 of different patient customized differently curved radians, the purpose that matches with the jawbone profile that plays with each patient, the entire upper surface of described adjusting lever 1 is provided with row's helical teeth 11 of gradient direction unanimity, so the profile of this adjusting lever 1 and the appearance similar of tooth bar, we also respectively are provided with stationary positioned plate 3 at the two ends up and down of adjusting lever 1, as Fig. 9, shown in 10, having one on the middle part of this stationary positioned plate 3 can be for the groove 32 of adjusting lever 1 embedding, by alignment pin 5 stationary positioned plate 3 is fixed on the lower surface at adjusting lever two ends about in the of 1 again, certainly it also can be to be fixed on the adjusting lever 1 by welding fixed mode, can also be to make integrative-structure with adjusting lever 1, said fixing location-plate 3 laterally protrudes the both sides of adjusting lever 1, and on stationary positioned plate 3, have a plurality of installing holes 31, especially will have installing hole 31 on the stationary positioned plate 3 that laterally protrudes adjusting lever 1 both sides, the number of installing hole 31 can be provided with as required;
Described movable traction frame 2 is set on the adjusting lever 1 and can does the circular arc slippage along its front and back;
Shown in Fig. 3～7, the length of screw rod cover 21 is much smaller than the length of adjusting lever 1, and described screw rod 4 its threaded portions 41 are arranged on the middle part of screw rod 4, described screw rod overlaps 21 bottoms and has a pre-and post perforative groove 211, threaded portion 41 is corresponding on the profile at the middle part of groove 211 bottoms and size and the screw rod 4, the profile and the size at the two ends of groove 211 bottoms are corresponding with screw rod 4, and promptly the middle part profile width of groove 211 bottoms is greater than the width at two ends, groove 211 bottom;
Shown in Fig. 3～7, the profile on groove 211 tops and size and adjusting lever 1 match, only to pass for adjusting lever 1;
As shown in Figure 8,22 of described fixing heads are fixed on screw rod cover 21 by alignment pin 6 modes or welding manner upper end is with adjusting lever 1, screw rod 4 shutoff are in groove 211, and the screw rods 4 that are located in the screw rod cover 21 are nibbled mutually with the helical teeth 11 on the adjusting lever 1 be equipped with the relative together adjusting lever 1 front and back slippage of driving activity traction frame 2 with screw rod 4, again owing to be contained in screw rod when overlapping in 21 when this screw rod 4, threaded portion 41 on the screw rod 4 just in time is positioned at the medium position of groove 211 bottoms, the two ends of groove 211 bottoms are then passed at the two ends of screw rod 4, it is shorter that screw rod 4 passes the length of screw rod cover 21, to prevent that screw rod 4 is oversize and easily expose outside the cheek, so this screw rod 4 can be located in the screw rod cover 21 by movable relatively traction frame 2 rotationally, and is overlapped in 21 to prevent that the movable relatively traction frame 2 of screw rod 4 from moving forward and backward by the spacing screw rod in front and back;
Shown in Fig. 5,6, the part that above-mentioned fixing head 22 exposes adjusting lever 1 both sides forms can be with the movable positioning plate 221 of movable traction frame 2 relative adjusting lever 1 front and back slippages, and on movable positioning plate 221, having a plurality of installing holes 222, the number of installing hole 222 can be provided with as required.
Each related parts of this utility model are good with the titanium alloy that adopts and the human body intermiscibility is fabulous.
Operation principle of the present utility model and process are such:
During use, both sides up and down at patient's jawbone section are fixed together with two stationary positioned plates 3 respectively with tapping screw, at this moment, on the jawbone of fracture, then be fixed together with tapping screw and movable positioning plate 221, at this moment, adjusting lever 1 is consistent with the profile of jawbone, during adjusting, rotating screw bolt 4 to the left or to the right as required, rotating screw bolt 4 can be with the spanner that matches with screw rod 4, regulate operation principle according to the screw thread on screw rod 4 and the adjusting lever 1 11, and force movable traction frame 2 relative adjusting lever 1 slippages up or down, according to the cooperation of the threaded portion 41 on helical teeth 11 and the screw rod 4, we can calculate rotating screw bolt 4 one circles, how many spacings movable traction frame 2 moves relative to adjusting lever 1, and this moment, jawbone fracture place produced the gap, utilizes pull strength to bring out the osteogenic ability of jawbone self and continues the new bone of formation and fill this gap.
We can bit by bit draw jawbone as required, and guaranteeing the new osseous maturation in the spatium interosseum, the profile that can also the new bone of fine assurance grows conforms to the radian of the original mandibular bone of patient.
Claims (7)
1, a kind of jaw bone tractor, include adjusting lever (1) and movable traction frame (2), the upper surface that it is characterized in that described adjusting lever (1) is provided with helical teeth (11), the two ends up and down of adjusting lever (1) respectively are provided with stationary positioned plate (3), described movable traction frame (2) is set in adjusting lever (1) upward also can be along slippage before and after it, movable traction frame (2) is provided with can be with the movable positioning plate (221) of slippage before and after the relative adjusting lever (1) of movable traction frame (2), one screw rod (4) can be located on the movable traction frame (2) by movable relatively traction frame (2) rotationally, this screw rod (4) is limited in movable traction frame (2) and goes up preventing that the movable relatively traction frame of screw rod (4) (2) from moving forward and backward, and described screw rod (4) is nibbled mutually with helical teeth (11) and is equipped with the relative together adjusting lever with screw rod (4) of driving activity traction frame (2) (1) front and back slippage.
2, jaw bone tractor according to claim 1 is characterized in that described adjusting lever (1) is the arc that matches with human body jawbone profile so that the lower surface and the jawbone of adjusting lever (1) are consistent.
3, jaw bone tractor according to claim 1 it is characterized in that described movable traction frame (2) is made up of screw rod cover (21) and fixing head (22), and its threaded portion of described screw rod (4) (41) is arranged on the middle part of screw rod (4); Described screw rod cover (21) bottom has a pre-and post perforative groove (211), the profile at the middle part of groove (211) bottom and size and screw rod (4) are gone up the corresponding of threaded portion (41), the profile and the size at the two ends of groove (211) bottom are corresponding with screw rod (4), and the profile on groove (211) top and size and adjusting lever (1) match; The upper end that described fixing head (22) then is fixed on screw rod cover (21) with adjusting lever (1), screw rod (4) shutoff in groove (211).
4, jaw bone tractor according to claim 3 is characterized in that described fixing head (22) and movable positioning plate (221) are structure as a whole.
5, jaw bone tractor according to claim 1 is characterized in that described helical teeth (11) is covered with the upper surface of whole adjusting lever (1).
6, jaw bone tractor according to claim 1 is characterized in that described stationary positioned plate (3) laterally protrudes the both sides of adjusting lever (1), and have a plurality of installing holes (31) on stationary positioned plate (3).
7,, it is characterized in that described movable positioning plate (221) laterally protrudes the both sides of adjusting lever (1), and on movable positioning plate (221), have a plurality of installing holes (222) according to claim 1 or 3 described jaw bone tractors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140176 CN200977186Y (en) | 2006-11-24 | 2006-11-24 | Jaw bone tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140176 CN200977186Y (en) | 2006-11-24 | 2006-11-24 | Jaw bone tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200977186Y true CN200977186Y (en) | 2007-11-21 |
Family
ID=38977568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140176 Expired - Lifetime CN200977186Y (en) | 2006-11-24 | 2006-11-24 | Jaw bone tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200977186Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450454C (en) * | 2006-11-24 | 2009-01-14 | 沈国芳 | Jaw bone tractor |
-
2006
- 2006-11-24 CN CN 200620140176 patent/CN200977186Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450454C (en) * | 2006-11-24 | 2009-01-14 | 沈国芳 | Jaw bone tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090114 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |