CN202489981U

CN202489981U - Mandibular angle osteotomy angulation positioning dilator

Info

Publication number: CN202489981U
Application number: CN2012201276320U
Authority: CN
Inventors: 田方兴; 刘红兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-30
Filing date: 2012-03-30
Publication date: 2012-10-17
Anticipated expiration: 2022-03-30

Abstract

The utility model relates to a mandibular angle osteotomy angulation positioning dilator, which is characterized by comprising a fixed arm, a foot part, a dilating bracket and a dilating part formed by bending hard plates in sequence, wherein a first included angle is formed between the fixed arm and the foot part; a second included angle is formed between the foot part and the dilating bracket; a third included angle is formed between the dilating bracket and the dilating part; a movable arm is rotationally arranged on the fixed arm; and an angulation positioning mechanism is arranged between the movable arm and the fixed arm. The mandibular angle osteotomy angulation positioning dilator has the advantages: 1, convenience is brought to fixing; 2, operation time is saved, and perfect shape of a mandibular angle after operation is ensured; 3, deep retractor traction is not required, labor intensity of doctors is lowered, the space is stable, surgical operation is facilitated, and displacement is prevented; and 4, operation is easy.

Description

Mandibular angle bone cutting angulation location dilator

Technical field

This utility model relates to the mandibular angle bone cutting angulation location dilator in a kind of plastic surgery, belongs to field of medical.

Background technology

When adopting a mouthful cutout to carry out the mandibular angle bone cutting operation; Need need before operation, confirm the skeleton of amputation, yet because mouthful cutout visual field is little, the lower jaw angular region is almost parallel with operation technique person's sight line; Usually to lean on subjective sensation and judge the angle of confirming to cut bone; Cause bilateral angle of mandible form asymmetric easily, influence aesthetic feeling, also might damage the inferior alveolar nerve vascular bundle.

In the prior art; Though designed some adjustment and locating apparatus, for example application number is 200710048810.4 and 200710048811.9 patent document, and the defective of its existence is: 1, its angle is unadjustable; Need adjust the position when laying in the art, lose time; Again because of only fixing its less stable at the angle of mandible place; 2, the location pin is only one, unadjustable angle and length, though can confirm below safety line, to cut bone, inelegant by the angle and the position of angle of mandible behind its section bone, two angles possibly appear, amputated the back as an angle; 3, no dilator needs deep-draw hook tractive soft tissue to expose operating field, patient's fatiguability, and the continuous conversion in working place in the art; Also have, fixing " " in the shape support, operative space is diminished, the two all is unfavorable for operation technique to U in the skin surface compressing.

Summary of the invention

For overcoming the defective of prior art, this utility model provides a kind of mandibular angle bone cutting angulation location dilator.The technical scheme of this utility model is: a kind of mandibular angle bone cutting angulation location dilator; It is characterized in that: comprise the fixed arm, the foot that form by hard plate body bending successively, strut support and strut portion; Form first angle between described fixed arm and the foot; Foot and strut between the support and to form second angle; Strut support and strut formation the 3rd angle between the portion, lever arm is installed on described fixed arm rotationally, the angulation detent mechanism is installed between described lever arm and the fixed arm.

Described angulation detent mechanism comprises the long-armed and angulation registration arm galianconism of angulation registration arm; Wherein on said angulation registration arm is long-armed, offer long-armed slip slotted eye; Offer galianconism slip slotted eye on the described angulation registration arm galianconism, an end of end that said angulation registration arm is long-armed and angulation registration arm galianconism links together through what regulating part rotated; On said fixed arm; Offer the fixed arm slotted eye along its length; Following saddle passes long-armed slip slotted eye and fixed arm slip slotted eye successively, offers the lever arm slotted eye on the described lever arm along its length, and upward-sliding piece passes galianconism slip slotted eye and lever arm slotted eye successively.

Be provided with fixedly ear at the free-end of said lever arm, fixedly ear and angulation registration arm galianconism are distributed in the both sides of lever arm on this; Fixed arm away from lever arm one end is provided with down fixedly ear, and this time fixedly ear and foot is distributed in the both sides of fixed arm.

Described first angle is 90 °.

Described second angle is 130 °.

Described the 3rd angle is 150-160 °.

Described hard plate body is a corrosion resistant plate.

The utility model has the advantages that: 1, scalable angle size between fixed arm and the lever arm, to adapt to patient's angle of mandible actual size, be convenient to fix; 2, can design the angle of mandible form of cutting bone line and aesthstic standard before the art, needn't design line again in the art, practice thrift operating time, and guaranteed that postoperative angle of mandible form is perfect; 3, strut support and can be placed in the otch, the ductility of utilizing soft tissues such as integumentary musculature is with lower jaw angular region operating field space distraction; Do not need deep-draw hook tractive, alleviated doctor's labor intensity, and its spatial stability; Be beneficial to operation technique; Moreover the resilience force of soft tissue acts on fixed arm, helps it and stablizes, and is difficult for displacement; 4, easy and simple to handle.

Description of drawings

Fig. 1 is the agent structure sketch map of this utility model.

The specific embodiment

Referring to Fig. 1, this utility model relates to a kind of mandibular angle bone cutting angulation location dilator, it is characterized in that: comprise the fixed arm 1, the foot 2 that are formed by hard plate body bending successively, strut support 3 and strut portion 4; Form first angle between described fixed arm 1 and the foot 2, described first angle is 90 ° (formation vertical relations), foot 2 with strut formation second angle between the support 3; Described second angle is 130 °, struts support 3 and strut to form the 3rd angle between the portion 4, and described the 3rd angle is 150-160 °; Three above-mentioned angles are the inwall angle; On described fixed arm 1, lever arm 5 is installed rotationally, adopts adjustment screw or annular knurl rivet to be rotationally connected, i.e. labelling 17 among the figure; After the position is confirmed; Carry out fastening location, make fixed arm and lever arm keep stationary state, between described lever arm 5 and the fixed arm 1 the angulation detent mechanism is installed.

Described angulation detent mechanism comprises angulation registration arm long-armed 10 and angulation registration arm galianconism 7; Wherein on said angulation registration arm long-armed 10, offer long-armed slip slotted eye 11; Offer galianconism slip slotted eye 8 on the described angulation registration arm galianconism 7, an end of an end of said angulation registration arm long-armed 10 and angulation registration arm galianconism 7 links together through what regulating part 9 rotated, and this regulating part can be bearing pin; Only play the effect of rotation; In order to keep better fixed effect, can adopt adjustment screw or annular knurl rivet, reach and adjust the position and carry out fixed purpose; On said fixed arm 1, offer fixed arm slotted eye 12 along its length, following saddle 13 passes long-armed slip slotted eye 11 and fixed arm slip slotted eye 12 successively; Offer lever arm slotted eye 6 along its length on the described lever arm 5; Upward-sliding piece 14 passes galianconism slip slotted eye 8 and lever arm slotted eye 6 successively, and upward-sliding piece 14 is identical structure with following saddle 13, positions after can transferring pine; The location is fixed later, for example adjusts screw.

Be provided with fixedly ear 15 at the free-end of said lever arm 5, fixedly ear 15 and angulation registration arm galianconism 7 are distributed in the both sides of lever arm 5 on this; Fixed arm 1 away from lever arm 5 one ends is provided with down fixedly ear 16, and this time fixedly ear 16 and foot 2 is distributed in the both sides of fixed arm 1, describedly goes up that fixedly ear 15 is perpendicular with lever arm, and following fixedly ear 16 and fixed arm 1 also are vertical relations.

Described hard plate body is a corrosion resistant plate.

The operation principle of this utility model is: the angle of mandible angle that at first records according to patient's X-ray film or CT three-dimensional imaging sheet, and by the position and the angle of ideal angle of mandible, before art, fixed arm, lever arm and angulation detent mechanism regulated and be fixed to perfect condition; Promptly regulate the angle of fixed arm and lever arm and patient's actual angle of mandible angle and match, by the new angle of mandible position and the angle of design, the long-armed crossing angle with angulation registration arm galianconism of adjustment angulation registration arm; Make it be ideal angle of mandible angle (120 ~ 124 degree); Make the position of the two position of intersecting, when in use, this utility model is inserted the gap that peel off the lower jaw angular region for the new angle of mandible of design; Strut its gap; Fixedly ear is placed on the mandible body lower edge down, and upward fixedly ear is placed on mandibular bone ascending branch trailing edge, and operator is pushed down these two fixedly ears with finger in the corresponding position of patient's face skin surface; Mandibular angle bone cutting angulation location dilator just can not be shifted; Make the working place spacious stable, get a clear view the fatigue of having avoided operator's long time tractive drag hook to cause.Be that available its done accurately location in the art; Cut bone by design before the art; Needn't design in the art again, practice thrift operating time, having avoided the doctor only to cut bilateral that the bone operation causes with subjective judgment by rule of thumb in the past, to cut bone asymmetric or augnathus angle deformity occurs or cut bone too much or cut complication such as bone quantity not sufficient.Though cut the bone line because safety can be accurately confirmed in existing operation; But in operation, be on the parallel or same straight line with doctor's sight line owing to the amputation position; Almost be difficult in and confirm the good accurate amputation in position in advance; The angulation registration arm of this utility model is long-armed to be adjusted to desired angle with angulation registration arm galianconism and to can be used as the saw blade guiding when cutting bone later on, and that avoids cutting bone saw sheet off-design cuts the bone line.Moreover existing to cut a bone be that straight line cuts bone, as cutting a bone by this apparatus location, can angle of mandible be shaped to the angle of mandible of aesthstic standard, and having avoided straight line to cut " hatchet face " deformity that bone possibly cause (is that angle of mandible does not have obvious processus aboralis angle.In addition, because part patient angle of mandible valgus deformity, make and place the fixed arm difficulty, in 10 millimeter scopes of fixed arm and lever arm junction, narrowing down 4 millimeters to fixed arm, promptly remaining 4 millimeters, avoid the angle of mandible zone of turning up, avoided placing and limited.

Claims

1. a mandibular angle bone cutting angulation is located dilator; It is characterized in that: comprise the fixed arm, the foot that form by hard plate body bending successively, strut support and strut portion; Form first angle between described fixed arm and the foot, foot forms second angle with strutting between the support, strut support and strut formation the 3rd angle between the portion; Lever arm is installed on described fixed arm rotationally, the angulation detent mechanism is installed between described lever arm and the fixed arm.

2. mandibular angle bone cutting angulation according to claim 1 location dilator; It is characterized in that: described angulation detent mechanism comprises the long-armed and angulation registration arm galianconism of angulation registration arm; Wherein on said angulation registration arm is long-armed, offer long-armed slip slotted eye; Offer galianconism slip slotted eye on the described angulation registration arm galianconism, an end of end that said angulation registration arm is long-armed and angulation registration arm galianconism links together through what regulating part rotated; On said fixed arm; Offer the fixed arm slotted eye along its length; Following saddle passes long-armed slip slotted eye and fixed arm slip slotted eye successively, offers the lever arm slotted eye on the described lever arm along its length, and upward-sliding piece passes galianconism slip slotted eye and lever arm slotted eye successively.

3. mandibular angle bone cutting angulation according to claim 2 location dilator is characterized in that: be provided with fixedly ear at the free-end of said lever arm, fixedly ear and angulation registration arm galianconism are distributed in the both sides of lever arm on this; Fixed arm away from lever arm one end is provided with down fixedly ear, and this time fixedly ear and foot is distributed in the both sides of fixed arm.

4. according to claim 1,2 or 3 described mandibular angle bone cutting angulation location dilators, it is characterized in that: described first angle is 90 °.

5. according to claim 1,2 or 3 described mandibular angle bone cutting angulation location dilators, it is characterized in that: described second angle is 130 °.

6. according to claim 1,2 or 3 described mandibular angle bone cutting angulation location dilators, it is characterized in that: described the 3rd angle is 150-160 °.

7. mandibular angle bone cutting angulation according to claim 1 location dilator, it is characterized in that: described hard plate body is a corrosion resistant plate.