CN202161389U - Parallelogram dilator - Google Patents
Parallelogram dilator Download PDFInfo
- Publication number
- CN202161389U CN202161389U CN2011202150062U CN201120215006U CN202161389U CN 202161389 U CN202161389 U CN 202161389U CN 2011202150062 U CN2011202150062 U CN 2011202150062U CN 201120215006 U CN201120215006 U CN 201120215006U CN 202161389 U CN202161389 U CN 202161389U
- Authority
- CN
- China
- Prior art keywords
- parallelogram
- riveting pin
- dilator
- connecting rods
- riveting
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a parallelogram dilator, and relates to a medical device technology in oral lower maxillary dilatation. The technical key points are as follows: two riveting pin heads are connected at the two ends of a double-head screw, and are respectively and fixedly connected with two pairs of connecting rods in a rotatable manner by riveting pins; the other ends of the two pairs of connecting rods are respectively and fixedly connected with fixed jaws by riveting pins; the four connecting rods are connected with the riveting pins on the fixed jaws by the riveting pin heads so as to form a variable parallelogram shape; and one side of the double-head screw is fixedly provided with a hexagonal head. Threads arranged at the two sides of the double-head screw are symmetrical. In the parallelogram dilator, the design is ingenious, the structure is simple, the operation is easy, and the surgical incision is not needed on the face in the use process so as to avoid from leaving scars.
Description
Technical field
This utility model relates to Oral and Maxillofacial Surgery technique with the apparatus field, particularly a kind of medical built-in parallelogram dilator.
Background technology
Expansion skeletonization technology (Distraction Osteogenesis; DO) be after cutting through bone; Use special extension fixture, slowly expansion, the new bone of formation reaches a kind of surgical technic of rescuing skeleton development deficiency or repairing bone defect purpose in section spatium interosseum thereby make.External expert once utilized the expansion skeletonization successfully to prolong half side face nanism patient's mandibular bone first, after this was on the increase in the basic research and the clinical practice in oromaxillo-facial region reduction and reconstructive surgery field about DO.It has solved the reluctant clinical case of traditional surgical approaches.Current expansion skeletonization technology often is applied to prolong mandibular bone and treatment micrognathia, but desires to reach therapeutic purposes effectively, and the key of dealing with problems is to select suitable bone dilator.To repair micrognathia at present much by the mouth outward expander; Sometimes need do the face otch of performing an operation; And existing simple unidirectional straight rod-type dilator can't symmetrical stretching skeleton, and the screw thread that also needs that has is fixed on the skeleton damage once more to root of the tooth or other skeletons.For example: a kind of built-in arc-shaped distraction osteogenesis device (Chinese patent 200810150721.5), a kind of three dimension arch ball power transmission formula distraction osteogenesis device (Chinese patent 200820221894.7), worm-drive bi-directional symmetrical move stretching device (one Chinese patent application 201120111243.4), the two-way transmission symmetry of bevel gear moves stretching device (one Chinese patent application 201120111242.x) etc.
Summary of the invention
The purpose of this utility model provides a kind of parallelogram dilator; Can avoid operation on face otch and screw thread on skeleton, to fix and realize symmetrical stretching skeleton; Adapt to mandibular bone micrognathia patient's built-in use, fully overcome the deficiency of prior art.
The technical scheme of this utility model is: double threaded screw two ends screw-type is connected with two riveting pin heads; The riveting pin head is turnable through the riveting pin nail with two pairs of connecting rods respectively and is fixedly connected; The other end of two pairs of connecting rods is turnable through the riveting pin nail with fixed claw respectively and is fixedly connected; Four connecting rods are through the variable dynamic formula parallelogram shape that is connected to form of the nail of the riveting pin on riveting pin head and the fixed claw, and double threaded screw one side is set with six square toes.The screw thread that the double threaded screw both sides are provided with is symmetrical screw thread.
In this utility model use; Turn six square toes can drive double threaded screw and rotate; The riveting pin capitiform of double threaded screw and both sides becomes the screw thread transmission of two pairs of symmetry directions; Drive the both sides connecting rod simultaneously and move, the fixed claw of the connecting rod other end is moved to two ends, realize the symmetrical stretching process of mandibular bone to the centre.It can be applied to the rectification of mandibular bone micrognathia, can on the mandibular bone symmetry direction, expand simultaneously.
The technique effect of this utility model is: at first in the operation of using this utility model; The symmetry that can drive left and right through the turn of six square toes moves; Guarantee of the stretching of stretching device, satisfied the needs of patient's symmetry stretching skeleton at the direction realization skeleton of bi-directional symmetrical; Secondly, this dilator profile is less, can place fully in the oral cavity, not be used in the face otch of performing an operation and avoids staying cicatrix, has also reduced less patient suffering; Moreover but the triangular structure of double threaded screw both sides has determined this dilator homeostasis; Be fixed on the skeleton without screw thread; Be more prone to installation and removal, can realize the less special expansion of jaw face severe deformities skeleton, and can avoid the fixing damage once more of screw thread root of the tooth or other skeletons; Can carry out orthodontic treatment synchronously in addition, reduce the time of wholistic therapy.
Description of drawings
Fig. 1, be mandibular bone parallelogram dilator structural representation;
Fig. 2, be mandibular bone parallelogram dilator side view.
Label is explained among the figure: 1, double threaded screw, 2, connecting rod, 3, six square toes, 4, fixed claw, 5, the riveting pin head, 6, the riveting pin nail.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is done and to be further described: like Fig. 1, shown in 2; Double threaded screw (1) two ends screw-type is connected with two riveting pin heads (5); Riveting pin head (5) is turnable through riveting pin nail (6) with two pairs of connecting rods (2) respectively and is fixedly connected; The other end of two pairs of connecting rods (2) is turnable through riveting pin nail (6) with fixed claw (4) respectively and is fixedly connected; Four connecting rods (2) are through the variable dynamic formula parallelogram shape that is connected to form of the nail of the riveting pin on riveting pin head (5) and the fixed claw (4) (6), and double threaded screw (1) one side is set with six square toes (3).The screw thread that double threaded screw (1) both sides are provided with is symmetrical screw thread.Fixed claw (4) is connected with connecting rod (2) through riveting pin nail (6), and when connecting rod (2) moved, fixed claw (4) was regulated fixed position with moved further and indexing thereupon automatically.
In this utility model use; Turn six square toes (3) can drive double threaded screw (1) and rotate; The riveting pin head (5) of double threaded screw (1) and both sides forms the screw thread transmission of two pairs of symmetry directions; Drive both sides connecting rod (2) simultaneously and move, the fixed claw (4) of connecting rod (2) other end is moved to two ends, realize the symmetrical stretching process of mandibular bone to the centre.It can be applied to the rectification of mandibular bone micrognathia, can on the mandibular bone symmetry direction, expand simultaneously.
Claims (3)
1. parallelogram dilator; It is characterized in that: double threaded screw (1) two ends screw-type is connected with two riveting pin heads (5); Riveting pin head (5) is turnable through riveting pin nail (6) with two pairs of connecting rods (2) respectively and is fixedly connected; The other end of two pairs of connecting rods (2) is turnable through riveting pin nail (6) with fixed claw (4) respectively and is fixedly connected; Four connecting rods (2) are through the variable dynamic formula parallelogram shape that is connected to form of the nail of the riveting pin on riveting pin head (5) and the fixed claw (4) (6), and double threaded screw (1) one side is set with six square toes (3).
2. parallelogram dilator according to claim 1 is characterized in that: the screw thread that double threaded screw (1) both sides are provided with is symmetrical screw thread.
3. parallelogram dilator according to claim 1; It is characterized in that: fixed claw (4) is connected with connecting rod (2) through riveting pin nail (6); When connecting rod (2) moved, fixed claw (4) was regulated fixed position with moved further and indexing thereupon automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202150062U CN202161389U (en) | 2011-06-23 | 2011-06-23 | Parallelogram dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202150062U CN202161389U (en) | 2011-06-23 | 2011-06-23 | Parallelogram dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202161389U true CN202161389U (en) | 2012-03-14 |
Family
ID=45797246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202150062U Expired - Fee Related CN202161389U (en) | 2011-06-23 | 2011-06-23 | Parallelogram dilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202161389U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787576A (en) * | 2012-08-09 | 2012-11-21 | 金华双泰车业有限公司 | Road surface motor sweeper |
| CN103434970A (en) * | 2013-08-26 | 2013-12-11 | 西南交通大学 | Ballastless track board lifting support |
| CN104083227A (en) * | 2014-07-24 | 2014-10-08 | 毕恒太 | Medical oral cavity positioning spreader |
| CN105250015A (en) * | 2014-07-24 | 2016-01-20 | 郝宏 | Surgical instrument for mandibular condyle |
| CN111588340A (en) * | 2020-06-02 | 2020-08-28 | 吉林大学 | Auxiliary positioning device for oral cavity correction |
-
2011
- 2011-06-23 CN CN2011202150062U patent/CN202161389U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787576A (en) * | 2012-08-09 | 2012-11-21 | 金华双泰车业有限公司 | Road surface motor sweeper |
| CN103434970A (en) * | 2013-08-26 | 2013-12-11 | 西南交通大学 | Ballastless track board lifting support |
| CN103434970B (en) * | 2013-08-26 | 2016-03-30 | 西南交通大学 | A kind of fragment-free track slab lifting support |
| CN104083227A (en) * | 2014-07-24 | 2014-10-08 | 毕恒太 | Medical oral cavity positioning spreader |
| CN104083227B (en) * | 2014-07-24 | 2015-09-16 | 毕恒太 | Medical oral cavity location dilator |
| CN105250015A (en) * | 2014-07-24 | 2016-01-20 | 郝宏 | Surgical instrument for mandibular condyle |
| CN111588340A (en) * | 2020-06-02 | 2020-08-28 | 吉林大学 | Auxiliary positioning device for oral cavity correction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20170623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |