CN205831757U - Medical oral cavity dilator - Google Patents
Medical oral cavity dilator Download PDFInfo
- Publication number
- CN205831757U CN205831757U CN201620272104.2U CN201620272104U CN205831757U CN 205831757 U CN205831757 U CN 205831757U CN 201620272104 U CN201620272104 U CN 201620272104U CN 205831757 U CN205831757 U CN 205831757U
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- CN
- China
- Prior art keywords
- transmission case
- supporting portion
- slide bar
- slide
- axle bed
- 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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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
This utility model relates to the medical apparatus and instruments of a kind of department of stomatology and oral maxillofacial surgery, a kind of Medical oral cavity dilator.Including with lower supporting portion, upper supporting portion, the two ends in lower supporting portion are respectively arranged with axle bed and transmission case, are provided with slide bar by bearing between described axle bed and transmission case；The stage casing of the slide bar between axle bed and transmission case is with external screw thread, and is set with slide block by threaded engagement, and described slide block is hinged on the lower end of support bar；The lower end in upper supporting portion is provided with strip groove, is provided with multiple axis hole in described groove, and the upper end of support bar is arranged in axis hole by rotating shaft；Transmission case is provided with the drive mechanism driving slide bar to rotate.This dilator compact conformation, easy to use, patient is painful little, and reasonable stress is suitable for Different Individual difference.
Description
Technical field
This utility model relates to the medical apparatus and instruments of a kind of department of stomatology and oral maxillofacial surgery, a kind of medical
Oral cavity spreader.
Background technology
The ramus of mandible end of mandibular bone has two projections, and the referred to as condyle being located behind is dashed forward, the lower jaw that it is expanded by upper end
Neck of mandible composition below head and head.Condyle of mandible ovalize, inside and outside path length, anteroposterior diameter is short.Side is seen, and has a horizontal ridge to incite somebody to action
Condyle top of dashing forward is divided into former and later two inclined-planes.Front bevel is little, for functional surfaces, is the heavy burden district in joint；Condyle of mandible is jaw bones
Zhe Haofa district, can be directly to hit the direct fracture that causes of condyle teat, it is also possible to be that mandibular bone chin portion or body are by beating
The indirect fracture hit and cause, the most easily fails to pinpoint a disease in diagnosis.Condyle of mandible is the position that mandibular bone is the weakest, thus is mandibular bone
The predilection site of fracture.Owing to condyloid process is the important component part of remporomandibular joint, there is special physiological function, when condyle is dashed forward
After fracture, temporomandibular joint certainly will be affected, affect meshing functions, and the growth promoter of child's mandibular bone and face is had substantially
Impact.At present, the treatment of fracture of condylar process is broadly divided into two big classes, a kind of No operation being to use intermaxillary traction replacement and fixation
Treatment, i.e. expectant treatment, another kind is the operative treatment of the lower replacement and fixation of surgical incision direct-view.For many years, who is excellent for two kinds of methods
Some disputes of who bad existence, but from the point of view of total situation, expectant treatment is always the main flow of Treatment of Condylar Fractures.Expectant treatment is not
Operate exposure fracture site, but uses maxillary and mandibular teeth row to put Arch bar splint, places 2 ~ 3mm on the grinding one's teeth in sleep of early contact
Valve rubber, by intermaxillary traction, be scheduled on central occlusion position, make the mandibular ramus of shifting move down, the bone stump of part on ascending branch
Recover therewith, be fixed on normal position, allow the condyle of fracture dash forward and ascending branch heals on this position, again complete bone even
Connect.Chinese patent 2012100319709 discloses one " Mandibular condyle fracture reduction dilator ", has intersection hinge and connects
Two clamp handles, the front end of these two clamp handles is supporting portion, and its rear end is grip part, by hinge when the force of grip part
Leverage makes supporting portion strut, and reaches to strut lower jaw and zygomatic arch, appears joint space, facilitates the purpose of operation technique.But this
Planting dilator volume relatively big, inconvenient operation, during in operation process, front end is positioned at patient's mouth, rear end is positioned at oral external, harm
Hinder operation technique and patient more painful；Supporting portion is in the same plane with grip part, and patient is in use close in supporting portion
Side cheek inwall, inconvenient operation；It addition, lever control strength is difficult to grasp, careless slightly supporting portion is easily bent deformation；
Further, upper supporting portion is fixing with the angle in lower supporting portion, it is impossible to adapting to the individual variation of patient, it is accurate that impact struts
Property.It addition, the operation on oral cavity such as dentistry also it is frequently necessary to use machinery passively to strut patient's mouth, facilitate operation technique, but existing
There is the universal volume of oral cavity spreader relatively big, have bigger handle to stay outside patient oral cavity after strutting, cause psychological burden to patient,
Also it is not easy to further operation technique simultaneously；Lacking necessary locking mechanism, the machinery strutted easily loosens.
Summary of the invention
It is an object of the invention to provide a kind of compact conformation, easy to use, range of accommodation big, reasonable stress, be suitable for not
Medical oral cavity dilator with individual variation.
For reaching object above, this utility model be the technical scheme is that this Medical oral cavity dilator includes and people
The upper supporting portion that lower supporting portion that body sigmoid notch the is corresponding zygomatic arch corresponding with human body upper jaw incisura coincide, described lower supporting portion
Two ends be respectively arranged with axle bed and transmission case, by bearing, slide bar is installed between described axle bed and transmission case；It is positioned at axle bed
And the stage casing of the slide bar between transmission case is with external screw thread, and being set with slide block by threaded engagement, described slide block is hinged on and props up
The lower end of strut；The lower end in described upper supporting portion is provided with strip groove, is provided with multiple axis hole in described groove, support bar
Upper end is arranged in axis hole by rotating shaft；Described transmission case is provided with the drive mechanism driving slide bar to rotate.
Described slide bar has side by side and be arranged in parallel two, every slide bar is respectively provided with a slide block, the position, end of two slide bars
Engage in transmission case and by travelling gear, described transmission case be provided with by bearing and be perpendicular to the worm screw that slide bar is arranged,
Any one in two slide bars is passed through worm gear and worm engaging, and the end of worm screw is provided with the installing hole for connecting handle.
The beneficial effects of the utility model are: compact conformation, are entirely located in patient's mouth during use, easy to use,
Patient's misery is little, without psychological burden, uses worm and gear drive mechanism, can be automatically locked at any position, reasonable stress, use
In mechanically deform or situation about fractureing are less likely to occur, the amplitude that strut can be adjusted flexibly according to Different Individual difference, be suitable for
Scope is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of this utility model.
Fig. 2 is that the A-A of Fig. 1 embodiment is to structural representation.
Detailed description of the invention
As it is shown in figure 1, this Medical oral cavity dilator described in the utility model includes the lower support corresponding with human body sigmoid notch
The upper supporting portion 2 that conjunction portion 1 zygomatic arch corresponding with human body upper jaw incisura coincide, upper supporting portion 2 is the circular arc of epirelief, has relatively
Good elasticity.Lower supporting portion 1 is recessed circular arc, front end, lower supporting portion 1 a boss 13, this lobe are arranged below
The groove position that sigmoid notch can be fitted in position 13, contributes to firm position, accurately.The two ends in described lower supporting portion 1 set respectively
It is equipped with axle bed 3 and transmission case 4, between described axle bed 3 and transmission case 4, by bearing, slide bar 5,6 is installed；It is positioned at axle bed 3 and passes
The stage casing of the slide bar 5,6 between dynamic case 4 is with external screw thread, and is set with slide block 7,8 by threaded engagement, and described slide block 7,8 cuts with scissors
It is connected on the lower end of support bar 9,10；The lower end in described upper supporting portion 2 is provided with strip groove 21, is provided with many in described groove 21
Individual axis hole 22, the upper end of support bar 9,10 is arranged in axis hole 22 by rotating shaft；During use can as required by support bar 9,
The upper end correspondence of 10 is arranged in different axis holes 22, it is achieved different support amplitudes；Described transmission case 4 is provided with driving slide bar
5,6 drive mechanism rotated.Slide bar 5,6 can move axially by band movable slider 7,8 when of rotation, thus changes support bar 9,10
Inclination angle.
Described slide bar 5,6 has side by side and be arranged in parallel two, and every slide bar is respectively provided with a slide block, the end of two slide bars
It is positioned at transmission case 4 and is engaged by travelling gear 41, described transmission case 4 being provided with by bearing and is perpendicular to what slide bar was arranged
Worm screw 42, any one in two slide bars is engaged with worm screw 42 by worm gear 43, and the end of worm screw 42 is provided with for connecting handle
Installing hole.The shape of this installing hole can be rectangle or cross-shaped, injects the handle matched, can be with rotary worm
42, thus drive two slide bars to reversely rotate by worm gear 43 and travelling gear 41, two slide bars of reverse rotation drive two the most respectively
Slide block slides to both direction respectively.Reach to lift the purpose in supporting portion 2.The when of slip, two slide blocks can be from slide bar
One end slides into the other end, and the sliding scale of slide block is big, and upper supporting portion 2 can obtain bigger heave amplitude accordingly.
During use, this dilator can unilateral use, it is possible to bilateral uses.Patient's cheek is close in lower supporting portion 1 and upper supporting portion 2
The inwall in portion, oral cavity central space is big, it is simple to operation.
Claims (2)
1. Medical oral cavity dilator is corresponding with human body upper jaw incisura including the lower supporting portion (1) corresponding with human body sigmoid notch
The upper supporting portion (2) that zygomatic arch coincide, it is characterised in that: the two ends of described lower supporting portion (1) are respectively arranged with axle bed (3) and transmission
Case (4), is provided with slide bar (5,6) by bearing between described axle bed (3) and transmission case (4)；It is positioned at axle bed (3) and transmission case
(4) stage casing of the slide bar (5,6) between is with external screw thread, and is set with slide block (7,8) by threaded engagement, described slide block (7,
8) lower end of support bar (9,10) it is hinged on；The lower end of described upper supporting portion (2) is provided with strip groove (21), described groove
(21) being provided with multiple axis hole (22) in, the upper end of support bar (9,10) is arranged in axis hole (22) by rotating shaft；Described transmission
Case (4) is provided with the drive mechanism driving slide bar (5,6) to rotate.
Medical oral cavity dilator the most according to claim 1, it is characterised in that: described slide bar (5,6) has side by side and parallel
Two arranged, every slide bar is respectively provided with a slide block, and the end of two slide bars is positioned at transmission case (4) and passes through travelling gear
(41) engagement, is provided with the worm screw (42) being perpendicular to slide bar setting, any in two slide bars by bearing in described transmission case (4)
One is engaged with worm screw (42) by worm gear (43), and the end of worm screw (42) is provided with the installing hole for connecting handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620272104.2U CN205831757U (en) | 2016-04-05 | 2016-04-05 | Medical oral cavity dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620272104.2U CN205831757U (en) | 2016-04-05 | 2016-04-05 | Medical oral cavity dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205831757U true CN205831757U (en) | 2016-12-28 |
Family
ID=57627073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620272104.2U Expired - Fee Related CN205831757U (en) | 2016-04-05 | 2016-04-05 | Medical oral cavity dilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205831757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588340A (en) * | 2020-06-02 | 2020-08-28 | 吉林大学 | Auxiliary positioning device for oral cavity correction |
-
2016
- 2016-04-05 CN CN201620272104.2U patent/CN205831757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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: 20161228 Termination date: 20180405 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |