CN201267522Y - Two-dimension distractor of inferior maxilla - Google Patents
Two-dimension distractor of inferior maxilla Download PDFInfo
- Publication number
- CN201267522Y CN201267522Y CNU2008202217094U CN200820221709U CN201267522Y CN 201267522 Y CN201267522 Y CN 201267522Y CN U2008202217094 U CNU2008202217094 U CN U2008202217094U CN 200820221709 U CN200820221709 U CN 200820221709U CN 201267522 Y CN201267522 Y CN 201267522Y
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- guide way
- following
- wing
- inserted link
- connecting rod
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Abstract
The utility model relates to a built-in type mandibular two-dimensional distraction device which belongs to the field of oral cavity and maxillofacial surgical instruments. The distraction device is characterized in that an upper guide body (3) and a lower guide body (6) in two different traction directions are connected with a connecting rod (14) of which both ends are respectively provided with a universal joint (13), and then two movable joints are formed between the upper guide body (3) and the lower guide body (6). The included angle between the two guide bodies of the distraction device is adjusted by the universal joints, the distraction device is ensured to adapt to the shape of the mandibular to the utmost extent, and the two guide bodies of the distraction device are respectively in close fit with the mandibular surface in the two planes of body and ramus. The utility model can pull the two guide bodes in two different directions after surgery, and reduce the exposed traction wound, thereby reducing the incidence rate of infection.
Description
Technical field
This utility model belongs to the Oral and Maxillofacial Surgery instrument field, is a kind of built-in inferior maxilla two-dimension stretch device.
Background technology
(Distraction Osteogenesis is after cutting by bone, to use special traction apparatus DO) to the distraction osteogenesis art, and slowly tractive forms the purpose that new bone reaches the skeleton prolongation thereby make in the osteotomy gap.The distraction osteogenesis technology is the most normal to be applied to prolong mandibular bone, treats the micrognathia that all kinds of reasons cause, and can make mandibular bone prolong 10～30mm.
Being applied to clinical mandibular bone DO device the earliest is the stretch device of externally positioned type single direction, this stretching device can only prolong mandibular bone at single direction, and often there is the bone quantity not sufficient of ascending branch (vertically to) and body (level to) simultaneously in the odd-shaped patient of mandibular bone.The two-way stretching device of externally positioned type occurred,, can on both direction, prolong mandibular bone simultaneously by on mandibular bone, making two osteotomy lines (ascending branch level to vertical to) with body thereafter.The introducing of two-way externally positioned type traction apparatus has obviously increased the scope of application of mandibular bone deformity distraction osteogenesis, but the major defect of externally positioned type mandibular bone stretching device is that volume is bigger, and patient's sense of discomfort is obvious, and can leave over nonvolatil skin scar at face.The internally-arranged type stretching device of Dan Shenging has solved above problem effectively subsequently, but patient for the mandibular bone micrognathia, the internally-arranged type stretching device of using single direction does not often reach ideal therapeutic effect, then need to settle at two positions simultaneously the stretching device of different directions, this has increased operating difficulty, operation wound and operating time undoubtedly.
Before, the applicant has applied for a kind of utility model " mandibular bone internally-arranged type reversible stretching device " (application number 2007201260139, approved), has solved the problems referred to above to a certain extent effectively.On the basis of clinical practice, the applicant to the further innovation and perfect of this stretching device, proposes this utility model from the structural design aspect.Compare with the former, this utility model all has more advantage from 26S Proteasome Structure and Function.
Summary of the invention
The purpose of this utility model provides a kind of built-in two-dimension stretch device that adapts to mandibular bone micrognathia patient.
The purpose of this utility model is to realize like this, design a kind of inferior maxilla two-dimension stretch device, it is characterized in that: the last guide way of two different leads is connected by the connecting rod that two ends have universal joint with following guide way, makes and forms two Movable joints between guide way and the following guide way.
The described guide way of going up is connected with movable wing and last fixed-wing; Following guide way is connected with down movable wing and following fixed-wing; Last fixed-wing and following fixed-wing near on the position of guide way, time guide way link; External screw thread on last movable wing and the following movable wing is threaded with the female thread of last traction screw and following traction screw respectively.
Described have inserted link in the guide way down, and inserted link one end is along the interior pipe of guide way is protruding down, and the external part of inserted link connects the turning handle universal joint.
The left end of described down traction screw and the afterbody of connecting rod have interior six sides respectively, and the left end of inserted link has a changeover portion, and one section outer six side is respectively arranged about changeover portion, and inserted link becomes the molding connection by hexagon in the afterbody of six sides outside the left end and connecting rod; Outer six sides of inserted link right-hand member connect with the interior hexagon molding of following traction screw end; Sleeve is left on the following traction screw left side, and jacket casing is connected on the body of connecting rod right-hand member.
Characteristics of the present utility model are: because the last guide way of two different leads is connected by the connecting rod that two ends have universal joint with following guide way, makes and form two Movable joints between guide way 3 and the following guide way.Make the built-in two-dimension stretch device of its mandibular bone can be applied to the rectification of mandibular bone micrognathia, can on mandibular bone body and ascending branch portion both direction, carry out distraction osteogenesis simultaneously.A movable wing respectively is installed in each guide way, and the female thread on the movable wing and the external screw thread of traction screw form the screw thread transmission.Connect with turning handle by pushing away the traction screw that switches different directions with post-tensioning before the inserted link, the preceding bar that pushes and plugs can make it to be connected with ascending branch stretching screw rod (promptly going up traction screw), and the rotation turning handle can drive the ascending branch movable wing and move; The post-tensioning inserted link then makes it to be connected with body stretching screw rod (promptly descending traction screw), the rotation turning handle can drive the body movable wing and move, thereby realize that connecting the all-in-one-piece jawbone with movable wing relies on the guide effect of guide way to move in different directions, finishes the two-dimension stretch process.
Technique effect of the present utility model is: in laying operation process of the present utility model, can regulate angle between two guide waies of stretching device by universal joint, make it meet turning angle between different patient's mandibular bone bodies and the ascending branch portion, guarantee that the stretching device adapts with patient's mandibular bone form to greatest extent, and make two guide waies of stretching device all can fit tightly at body and two planes of ascending branch respectively with bone surface.From certain meaning, this utility model is a kind of two-dimension stretch device of individuation design.Utility model before (2007201260139) is to be linked together by the guide way of duplex fixed-wing with two different leads, and it is fixed connecting angle.In addition, actuating device of the present utility model: turning handle has only one, makes it to set up with the traction screw of two different directions respectively to connect by pushing away before the inserted link with post-tensioning.Therefore, only need in the operation can realize the traction of postoperative, reduced the traction wound that exposes, thereby reduced the incidence rate of infection two different directions guide waies at a traction of reservation otch (exposing turning handle outside skin) on the skin.And utility model before (2007201260139) respectively has a turning handle to connect with the traction screw of different directions, need reserve two traction otch in the operation on skin.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing.
Fig. 1 is an inferior maxilla two-dimension stretch device structural representation;
Fig. 2 is inside and outside hexagonal structure sketch map;
Fig. 3 is the hinge pedestal structure sketch map.
Among the figure: 1, go up fixed-wing; 2, go up movable wing; 3, go up guide way; 4, go up traction screw; 5, following fixed-wing; 6, following guide way; 7, following movable wing; 8, turning handle; 9, turning handle universal joint; 10, following traction screw; 11, inserted link; 12, connecting rod; 13, universal joint; 14, connecting rod; 15, universal joint connecting hole; 16, outer six sides; 17, straight pin; 18, interior six sides; 19, changeover portion; 20, sleeve.
The specific embodiment
As shown in Figure 1, the last guide way 3 of two different leads is connected by the connecting rod 14 that two ends have universal joint 13 with following guide way 6, makes and forms two Movable joints between guide way 3 and the following guide way 6.
The connecting rod 14 that following guide way 6 has a universal joint 13 by two ends connects that a universal joint connecting hole 15 being by connecting rod 12 left ends is connected with universal joint.Last guide way 3 is connected with the connecting rod 14 that has universal joint 13 and is directly to be connected with the universal joint connecting hole 15 of last guide way 3 right-hand members.
In the operation process, can regulate the angle of going up between guide way 3 and the following guide way 6 by connecting universal joint 13, make it meet turning angle between different patient's mandibular bone ascending branch portions and the body, guarantee that the stretching device adapts with patient's mandibular bone form to greatest extent, and make two guide waies of stretching device all can fit tightly at body and two planes of ascending branch respectively with bone surface.
As shown in Figure 2, the left end of the afterbody of connecting rod 12 and following traction screw 10 is processed with interior six sides 18 respectively, the left end of inserted link 11 has a changeover portion 19, and changeover portion about 19 respectively has one section outer six side 16, and inserted link 11 is by outer six sides 16 of left end and the interior 18 one-tenth connections of hexagon of the afterbody of connecting rod 12; Outer six sides 16 of inserted link 11 right-hand members become to connect with the interior hexagon of traction screw 10 ends; Sleeve 20 is left on following traction screw 10 left sides, and sleeve 20 is socketed on the body of connecting rod 12 right-hand members.During work, when moving to left, inserted link 11 is connected with interior six sides 18 of the afterbody of connecting rod 12 by outer six sides 16 of end left end.Rotation inserted link 11 can be realized the traction of mandibular bone ascending branch.When inserted link 11 moved to right, outer six sides 16 were connected with interior six sides 18 of following traction screw 10 ends by the end right-hand member, and rotation inserted link 11 can be realized the traction of mandibular bone body.
As shown in Figure 3, stretch out to the right on inserted link 11 right-hand members edge traction screw 10 interior pipes down, and the straight pin 17 of inserted link 11 right-hand members is connected with turning handle 8 and turning handle universal joint 9.The last traction screw 4 that turning handle 8, turning handle universal joint 9 are connected with connecting rod 12 forms the multi-joint connector.
Claims (4)
1, inferior maxilla two-dimension stretch device, it is characterized in that: the last guide way (3) of two different leads is connected by the connecting rod (14) that two ends have universal joint (13) with following guide way (6), makes and forms two Movable joints between guide way (3) and the following guide way (6).
2, inferior maxilla two-dimension stretch device according to claim 1 is characterized in that: the described guide way (3) of going up is connected with movable wing (2) and last fixed-wing (1); Following guide way (6) is connected with down movable wing (7) and following fixed-wing (5); Last fixed-wing (1) and following fixed-wing (5) near on guide way (3), the following position of guide way (6) link; External screw thread on last movable wing (2) and the following movable wing (7) is threaded with the female thread of last traction screw (4) and following traction screw (10) respectively.
3, inferior maxilla two-dimension stretch device according to claim 1 is characterized in that: described have inserted link (11) in the guide way (6) down, and inserted link (11) one ends are along the interior pipe of guide way (6) is protruding down, and the external part of inserted link (11) connects turning handle universal joint (9).
4, inferior maxilla two-dimension stretch device according to claim 2, it is characterized in that: the described left end of traction screw (10) down and the afterbody of connecting rod (12) have interior six sides (18) respectively, the left end of inserted link (11) has a changeover portion (19), one section outer six side (16) is respectively arranged about changeover portion (19), and inserted link (11) forms molding by outer six sides (16) of left end with interior six sides (18) of the afterbody of connecting rod (12) and connects; Outer six sides (16) of inserted link (11) right-hand member form molding with interior six sides (18) of following traction screw (10) end and connect; Sleeve (20) is left on following traction screw (10) left side, and sleeve (20) is socketed on the body of connecting rod (12) right-hand member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202217094U CN201267522Y (en) | 2008-09-28 | 2008-09-28 | Two-dimension distractor of inferior maxilla |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202217094U CN201267522Y (en) | 2008-09-28 | 2008-09-28 | Two-dimension distractor of inferior maxilla |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201267522Y true CN201267522Y (en) | 2009-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202217094U Expired - Fee Related CN201267522Y (en) | 2008-09-28 | 2008-09-28 | Two-dimension distractor of inferior maxilla |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201267522Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586481A (en) * | 2015-01-30 | 2015-05-06 | 中国人民解放军第306医院 | Internal arced distractor |
| US9622782B1 (en) | 2016-10-17 | 2017-04-18 | King Saud University | Curved alveolar bone distractor |
| US10433887B2 (en) | 2011-04-26 | 2019-10-08 | DePuy Synthes Products, Inc. | Hinged fixation devices for combined upper jaw correction |
-
2008
- 2008-09-28 CN CNU2008202217094U patent/CN201267522Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10433887B2 (en) | 2011-04-26 | 2019-10-08 | DePuy Synthes Products, Inc. | Hinged fixation devices for combined upper jaw correction |
| CN104586481A (en) * | 2015-01-30 | 2015-05-06 | 中国人民解放军第306医院 | Internal arced distractor |
| CN104586481B (en) * | 2015-01-30 | 2017-03-08 | 中国人民解放军第306医院 | A kind of built-in arc-shaped distraction device |
| US9622782B1 (en) | 2016-10-17 | 2017-04-18 | King Saud University | Curved alveolar bone distractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20091028 |