CN105286766A - Mouth cavity positioning distraction device - Google Patents
Mouth cavity positioning distraction device Download PDFInfo
- Publication number
- CN105286766A CN105286766A CN201510747672.3A CN201510747672A CN105286766A CN 105286766 A CN105286766 A CN 105286766A CN 201510747672 A CN201510747672 A CN 201510747672A CN 105286766 A CN105286766 A CN 105286766A
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- CN
- China
- Prior art keywords
- supporting portion
- hinge
- nut
- bar
- hinged
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Radiology & Medical Imaging (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a medical apparatus for a maxillofacial surgical operation, in particular to a mouth cavity positioning distraction device. The mouth cavity positioning distraction device comprises a lower distraction part corresponding to the lower jaw incisura of a human body and an upper distraction part corresponding to the lower jaw incisura of the human body and matched with the zygomatic arch, a lower front supporting rod and a lower rear supporting rod are respectively hinged to the two ends of the lower distraction part, and an upper front supporting rod and an upper rear supporting rod are respectively hinged to the two ends of the upper distraction part. The upper end of the lower front supporting rod and the lower end of the upper front supporting rod are hinged to a front hinge shaft, the upper end of the lower rear supporting rod and the lower end of the upper rear supporting rod are hinged to a rear hinge shaft, and the front hinge shaft and the rear hinge shaft are both installed on a middle shaft. The mouth cavity positioning distraction device is compact in structure, convenient to use and reasonable in stress, enables the suffering of a patient to be small, does not easily produce the situation of mechanical deformation or breakage in use and can adapt to different individuals.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments of oral maxillofacial surgery, is location, a kind of oral cavity dilator specifically.
Background technology
The ramus of mandible end of mandibular bone has two projections, and the condyle that is referred to as being positioned at rear is dashed forward, and the neck of mandible below the head of mandible that it is expanded by upper end and head forms.Condyle of mandible ovalize, inside and outside path length, anteroposterior diameter is short.Side is seen, and has horizontal ridge top of being dashed forward by condyle to be divided into former and later two inclined-planes.Front bevel is little, is functional surfaces, is the heavy burden district in joint; Condyle of mandible is the Hao Fa district of jaw fracture, can be directly to hit the direct fracture that condyle teat causes, and also can be the indirect fracture that mandibular bone chin portion or body catch a packet and cause, easily fail to pinpoint a disease in diagnosis clinically.Condyle of mandible is the weakest position of mandibular bone, because of but the predilection site of fracture of mandible.Dashing forward due to condyle shape is the important component part of remporomandibular joint, has special physiological function, when after condylar fracture, certainly will affect temporomandibular joint, affect meshing functions, and has obvious impact to the growth promoter of child's mandibular bone and face.At present, the treatment of fracture of condylar process is mainly divided into two large classes, and a kind of is the non-operative treatment adopting intermaxillary traction replacement and fixation, i.e. expectant treatment, and another kind is the operative treatment of the lower replacement and fixation of surgical incision direct-view.For many years, which is better and which is worse there are some disputes for two kinds of methods, but total situation, expectant treatment is the main flow of Treatment of Condylar Fractures always.Expectant treatment is the exposure fracture site that do not operate, but adopt maxillary and mandibular teeth row to put Arch bar splint, the grinding one's teeth in sleep of early contact is placed the valve rubber of 2 ~ 3mm, by intermaxillary traction, fix on central occlusion position, the mandibular ramus of moving is moved down, on ascending branch, the bone stump of part recovers thereupon, be fixed on normal position, allow the prominent and ascending branch of the condyle of fracture heal on this position, again complete bone and connect.Chinese patent 2012100319709 discloses one " Mandibular condyle fracture reduction dilator ", there are two clamp handles that intersection hinge connects, the front end of these two clamp handles is supporting portion, its rear end is grip part, by the leverage of hinge, supporting portion is strutted when the force of grip part, reach the object strutting lower jaw and zygomatic arch, appear joint space, facilitate operation technique.But this dilator volume is comparatively large, inconvenient operation, and in operation process, front end is arranged in patient's mouth, and rear end is positioned at oral external, hinder operation technique and patient is more painful; Supporting portion and grip part in the same plane, and patient side cheek inwall is in use close in supporting portion, inconvenient operation; In addition, lever control strength is difficult to grasp, the easy flexural deformation in careless slightly supporting portion; Further, the angle in upper supporting portion and lower supporting portion is fixing, can not adapt to the individual variation of patient, affects the accuracy strutted.
Summary of the invention
The object of this invention is to provide painful little, the reasonable stress of a kind of compact conformation, easy to use, patient, location, the oral cavity dilator of Different Individual difference can be adapted to.
For reaching above object, the technical solution adopted in the present invention is: the upper supporting portion that location, this oral cavity dilator comprises the lower supporting portion corresponding with human body sigmoid notch, the zygomatic arch corresponding with human body sigmoid notch coincide, the two ends in described lower supporting portion are hinged with lower support front bar and lower support rear bar respectively, and the two ends in described upper supporting portion are hinged with support front bar and upper support rear bar respectively; The upper end of described lower support front bar and the lower end of upper support front bar are hinged on front hinge, and the upper end of described lower support rear bar and the lower end of upper support rear bar are hinged on rear hinge, and described front hinge and rear hinge are installed on axis.
The stage casing of described axis is provided with external screw thread, front hinge and rear hinge at least one of them by thread set on axis.
The outer surface of axis is provided with external screw thread and spline, described front hinge and rear hinge are all sleeved on axis by spline, with the spline protruded in the through hole of front hinge and rear hinge, described spline is installed in spline, described axis is equipped with nut by external thread sleeve, the nut sleeve of tubulose is sleeved on described nut slidably, the outer surface of described nut is provided with worm gear, with gap between described nut sleeve and nut, described nut sleeve runs through worm screw is installed, the polished rod section at described worm screw two ends is slidably mounted on the tube wall of nut sleeve, the stage casing that described worm screw is positioned at nut sleeve inner chamber is engaged with described nut by worm and gear cooperation.
Described upper supporting portion is the circular arc of epirelief, and described lower supporting portion is recessed circular arc, and lower supporting portion is provided with a boss below front end.
Beneficial effect of the present invention is: compact conformation, all patient's mouth is positioned at during use, easy to use, patient is painful little, adopt screw rod or worm and gear drives structure, reasonable stress, the situation being less likely to occur mechanically deform in using or fractureing, angle and the shape in upper and lower supporting portion can adjust automatically according to stressing conditions, can adapt to Different Individual difference.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the side structure schematic diagram of Fig. 1 embodiment.
Fig. 3 is the structural representation of another embodiment of the present invention.
Fig. 4 is the structural representation that in Fig. 3 embodiment, turbine and worm coordinates.
Fig. 5 is the structure for amplifying schematic diagram of nut nut sleeve.
Detailed description of the invention
As shown in Figure 1, the upper supporting portion 2 that location, oral cavity of the present invention dilator comprises the lower supporting portion 1 corresponding with human body sigmoid notch, the zygomatic arch corresponding with human body sigmoid notch coincide.The two ends in described lower supporting portion 1 are hinged with lower support front bar 3 and lower support rear bar 4 respectively, and the two ends in described upper supporting portion 2 are hinged with support front bar 5 and upper support rear bar 6 respectively; The upper end of described lower support front bar 3 and the lower end of upper support front bar 5 are hinged on front hinge 7, and the upper end of described lower support rear bar 4 and the lower end of upper support rear bar 6 are hinged on rear hinge 8, and described front hinge 7 and rear hinge 8 are installed on axis 9.As shown in Figure 2, front hinge 7 and rear hinge 8 are provided with radial through hole, axis 9 is inserted in radial through hole, the end of each support bar is sleeved on front hinge 7 or rear hinge 8 by bearing-ring device, each support bar can rotate around front hinge 7 or rear hinge 8, and front hinge 7 or rear hinge 8 can move axially on axis 9.In current hinge 7 or rear hinge 8 move on axis 9, the distance changed between front hinge 7 and rear hinge 8 can change the distance between upper supporting portion 2 and lower supporting portion 1, namely changes the height that mandibular bone struts.
Embodiment as shown in Figure 1, Figure 2, the stage casing of described axis 9 is provided with external screw thread, front hinge 7 and rear hinge 8 at least one of them by thread set on axis 9, another is sleeved on the polished rod section on axis 9, and both sides are with snap ring, the hinge being arranged on polished rod section is made to rotate and can not move axially.For ease of operation, can at one end setting operation handle 14 of axis 9, described lever 14 is the handwheel shapes reduced with spoke, clamps lever 14 rotation central axis 9 when operation by operating forceps, one of them moves axially to make front hinge 7 and rear hinge 8, changes distance between the two.Certainly, also lever 14 can be stirred by direct hands.
As Fig. 3, Fig. 4 embodiment, the outer surface of described axis 9 is provided with external screw thread and spline, described front hinge 7 and rear hinge 8 are all sleeved on axis 9 by spline, with the spline protruded in the through hole of front hinge 7 and rear hinge 8, described spline is installed in spline, front hinge 7 and rear hinge 8 can only be moved axially on axis 9, can not rotate.Described axis 9 is equipped with nut 10 by external thread sleeve, makes nut 10 can rotate advance on axis 9.The nut sleeve 11 of tubulose is sleeved on described nut 10 slidably, the outer surface of described nut 10 is provided with worm gear, with gap between described nut sleeve 11 and nut 10, described nut sleeve 11 runs through worm screw 12 is installed, the polished rod section at described worm screw 12 two ends is slidably mounted on the tube wall of nut sleeve 11, and the stage casing that described worm screw 12 is positioned at nut sleeve 11 inner chamber is engaged with described nut 10 by worm and gear cooperation.Nut 10 can be promoted when rotary worm 12 rotate, thus make it move on axis 9.Be sleeved on described nut 10 slidably to make nut sleeve 11, as shown in Figure 5, the both ends of the surface of nut 10 are provided with the circular draw-in groove concentric with axis 9, end cap is provided with in the both ends of the surface of nut sleeve 11, on described end cap, correspondence position is provided with the snap ring 15 of matching circular draw-in groove, and snap ring 15 is installed in circular draw-in groove.Like this, both can nut sleeve 11 be fixed on nut 10, both can be made again relatively to rotate.Nut 10 can be promoted by handle rotary worm 12 to move, change the distance between front hinge 7 and rear hinge 8, thus the lower height between supporting portion 1 and upper supporting portion 2 of adjustment.During use, the inwall of patient's cheek is close in lower supporting portion 1 and upper supporting portion 2, is positioned in the middle part of patient oral cavity, convenient operation with the operating side of the vertically disposed worm screw 12 of axis 9.
Above-mentioned upper supporting portion 2 is the circular arc of epirelief, has good elasticity, two ends stressed large time can produce distortion laminating tissue, and adapt to Different Individual difference.Described lower supporting portion 1 is recessed circular arc, and lower supporting portion 1 is provided with a boss 13 below front end, and this boss 13 can be fitted the groove position of sigmoid notch, contributes to firm position, accurately.
Claims (1)
1. location, oral cavity dilator, the upper supporting portion (2) comprising the lower supporting portion (1) corresponding with human body sigmoid notch, coincide with zygomatic arch corresponding to human body sigmoid notch, it is characterized in that: the two ends of described lower supporting portion (1) are hinged with lower support front bar (3) and lower support rear bar (4) respectively, the two ends of described upper supporting portion (2) are hinged with support front bar (5) and upper support rear bar (6) respectively, the described upper end of lower support front bar (3) and the lower end of upper support front bar (5) are hinged on front hinge (7), the described upper end of lower support rear bar (4) and the lower end of upper support rear bar (6) are hinged on rear hinge (8), and described front hinge (7) and rear hinge (8) are installed on axis (9), the outer surface of axis (9) is provided with spline, described front hinge (7) and rear hinge (8) are all sleeved on axis (9) by spline, with the spline protruded in the through hole of front hinge (7) and rear hinge (8), described spline is installed in spline, described axis (9) is equipped with nut (10) by external thread sleeve, the nut sleeve (11) of tubulose is sleeved on described nut (10) slidably, the outer surface of described nut (10) is provided with worm gear, with gap between described nut sleeve (11) and nut (10), described nut sleeve (11) runs through worm screw (12) is installed, the polished rod section at described worm screw (12) two ends is slidably mounted on the tube wall of nut sleeve (11), the stage casing that described worm screw (12) is positioned at nut sleeve (11) inner chamber is engaged with described nut (10) by worm and gear cooperation, the circular arc that described upper supporting portion (2) is epirelief, described lower supporting portion (1) is recessed circular arc, is provided with a boss (13) below lower supporting portion (1) front end.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353406.8A CN104083197B (en) | 2014-07-24 | 2014-07-24 | Condyle of mandible reset dilator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353406.8A Division CN104083197B (en) | 2014-07-24 | 2014-07-24 | Condyle of mandible reset dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105286766A true CN105286766A (en) | 2016-02-03 |
Family
ID=51631035
Family Applications (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510747672.3A Pending CN105286766A (en) | 2014-07-24 | 2014-07-24 | Mouth cavity positioning distraction device |
| CN201410353406.8A Expired - Fee Related CN104083197B (en) | 2014-07-24 | 2014-07-24 | Condyle of mandible reset dilator |
| CN201510748289.XA Active CN105380588B (en) | 2014-07-24 | 2014-07-24 | Reset dilator for condyle of mandible operation |
| CN201510748394.3A Pending CN105380589A (en) | 2014-07-24 | 2014-07-24 | Self-locking type expander for maxillofacial surgery |
| CN201510744730.7A Pending CN105286765A (en) | 2014-07-24 | 2014-07-24 | Oral cavity bracing device for mandibular condyle process surgery |
| CN201510748389.2A Pending CN105250015A (en) | 2014-07-24 | 2014-07-24 | Surgical instrument for mandibular condyle |
| CN201510744418.8A Expired - Fee Related CN105231983B (en) | 2014-07-24 | 2014-07-24 | Maxillofacial surgical instrument |
| CN201510746870.8A Active CN105249920B (en) | 2014-07-24 | 2014-07-24 | A kind of Maxillofacial surgery dilator |
Family Applications After (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353406.8A Expired - Fee Related CN104083197B (en) | 2014-07-24 | 2014-07-24 | Condyle of mandible reset dilator |
| CN201510748289.XA Active CN105380588B (en) | 2014-07-24 | 2014-07-24 | Reset dilator for condyle of mandible operation |
| CN201510748394.3A Pending CN105380589A (en) | 2014-07-24 | 2014-07-24 | Self-locking type expander for maxillofacial surgery |
| CN201510744730.7A Pending CN105286765A (en) | 2014-07-24 | 2014-07-24 | Oral cavity bracing device for mandibular condyle process surgery |
| CN201510748389.2A Pending CN105250015A (en) | 2014-07-24 | 2014-07-24 | Surgical instrument for mandibular condyle |
| CN201510744418.8A Expired - Fee Related CN105231983B (en) | 2014-07-24 | 2014-07-24 | Maxillofacial surgical instrument |
| CN201510746870.8A Active CN105249920B (en) | 2014-07-24 | 2014-07-24 | A kind of Maxillofacial surgery dilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (8) | CN105286766A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426235A (en) * | 2020-11-23 | 2021-03-02 | 重庆大学附属肿瘤医院 | Opener for oral and maxillofacial surgery |
| CN113289267A (en) * | 2021-05-21 | 2021-08-24 | 南通市第一人民医院 | Neck tumor radiotherapy buccal device |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3027791A1 (en) * | 2014-11-03 | 2016-05-06 | Yoomed | DEVICE FOR INDUCING OR CORRECTING MANDIBULAR GROWTH. |
| CN105640482B (en) * | 2016-04-05 | 2017-08-18 | 于淼 | Medical oral cavity dilator |
| CN105640483B (en) * | 2016-04-05 | 2017-12-15 | 贝忠东 | Self-locking medical mouth gag |
| CN105769265B (en) * | 2016-04-05 | 2018-12-04 | 青岛亿嘉诺日化有限公司 | Skeleton self-locking medical mouth gag |
| CN107280720A (en) * | 2017-07-20 | 2017-10-24 | 尹学磊 | A kind of operative incision retracts accurate muscular retractor |
| CN107625539B (en) * | 2017-10-12 | 2020-04-17 | 高密市卫生学校 | Oral cavity expander |
| CN108175457B (en) | 2017-11-08 | 2020-03-17 | 南京畅丰生物科技有限公司 | Temporomandibular joint intraoral retractor |
| CN108992027A (en) * | 2018-08-30 | 2018-12-14 | 潍坊护理职业学院 | A kind of jaw face clinical oral diagnostic device |
| CN109363737B (en) * | 2018-09-21 | 2020-12-15 | 宋作军 | Clinical wound expanding device for general surgery department |
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| RU2177241C2 (en) * | 2000-02-17 | 2001-12-27 | Научно-исследовательский институт фтизиопульмонологии ММА им. И.М.Сеченова | Mouth dilator |
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- 2014-07-24 CN CN201510747672.3A patent/CN105286766A/en active Pending
- 2014-07-24 CN CN201410353406.8A patent/CN104083197B/en not_active Expired - Fee Related
- 2014-07-24 CN CN201510748289.XA patent/CN105380588B/en active Active
- 2014-07-24 CN CN201510748394.3A patent/CN105380589A/en active Pending
- 2014-07-24 CN CN201510744730.7A patent/CN105286765A/en active Pending
- 2014-07-24 CN CN201510748389.2A patent/CN105250015A/en active Pending
- 2014-07-24 CN CN201510744418.8A patent/CN105231983B/en not_active Expired - Fee Related
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| US5184604A (en) * | 1991-10-29 | 1993-02-09 | Brillante Jose C | Animal mouth retractor |
| EP1336420A2 (en) * | 2002-02-13 | 2003-08-20 | Kolb, Dieter Dr. med. | Mouthpiece for medical purposes |
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| CN201409901Y (en) * | 2009-06-29 | 2010-02-24 | 苏莉 | Temporomandibular joint special speculum |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426235A (en) * | 2020-11-23 | 2021-03-02 | 重庆大学附属肿瘤医院 | Opener for oral and maxillofacial surgery |
| CN112426235B (en) * | 2020-11-23 | 2022-05-10 | 重庆大学附属肿瘤医院 | Opener for oral and maxillofacial surgery |
| CN113289267A (en) * | 2021-05-21 | 2021-08-24 | 南通市第一人民医院 | Neck tumor radiotherapy buccal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105249920B (en) | 2016-08-24 |
| CN105380588A (en) | 2016-03-09 |
| CN105231983B (en) | 2017-03-22 |
| CN105286765A (en) | 2016-02-03 |
| CN105380588B (en) | 2019-01-18 |
| CN105250015A (en) | 2016-01-20 |
| CN104083197A (en) | 2014-10-08 |
| CN105380589A (en) | 2016-03-09 |
| CN105249920A (en) | 2016-01-20 |
| CN104083197B (en) | 2016-02-10 |
| CN105231983A (en) | 2016-01-13 |
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Application publication date: 20160203 |