CN110613524B - Pitch-variable opening device - Google Patents
Pitch-variable opening device Download PDFInfo
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- CN110613524B CN110613524B CN201910979552.4A CN201910979552A CN110613524B CN 110613524 B CN110613524 B CN 110613524B CN 201910979552 A CN201910979552 A CN 201910979552A CN 110613524 B CN110613524 B CN 110613524B
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- 230000005540 biological transmission Effects 0.000 claims description 54
- 230000000694 effects Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 22
- 210000000214 mouth Anatomy 0.000 description 68
- 230000009471 action Effects 0.000 description 13
- 210000001519 tissue Anatomy 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 210000003128 head Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010012373 Depressed level of consciousness Diseases 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 206010050031 Muscle strain Diseases 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 238000000968 medical method and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
- A61B90/16—Bite blocks
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
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- Accommodation For Nursing Or Treatment Tables (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention provides a variable-pitch type opening device, and belongs to the technical field of medical appliances. It has solved the current limited problem of opening device operation space and field of vision. The first support body and the second support body are respectively in a strip shape and are arranged oppositely, the first support body and the second support body are respectively arranged on the handle support and can relatively translate, the first support body and/or the second support body can relatively swing relative to the handle support in the translation plane of the first support body and/or the second support body, and a first positioning piece capable of positioning after the first support body and/or the second support body swing is further arranged on the handle support. The opening device integrates the functions of synchronous opening at two sides and single-side opening, can realize synchronous opening at two sides, single-side opening, synchronous opening at two sides and single-side opening matching of the mouth of a patient and other application modes, and has wider applicability.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and relates to a variable-pitch type opening device.
Background
The mouth gag is also called mouth gag, and is an instrument used for expanding the oral cavity in the medical process of dyspnea or obnubilation, gastric lavage, dental care operation of stomatology, other oral cavity operations and the like. The prior traditional mouth gag is generally U-shaped, and two ends of the mouth gag are respectively fixedly connected with a handle. The opening device body has elasticity, and two side arms of opening device body can be to inside or outside the bending of opening device body when receiving the oppression by external pressure, when external pressure disappears, two side arms of opening device body resume original position again. The mouth gag has the advantages of simple structure, simple and convenient operation and low cost, is suitable for various oral medical institutions, and is particularly suitable for oral medical operation. But this mouth gag is simple to support fixedly to the oral cavity, and its open-ended degree can't be adjusted according to different medical demands and patient's condition, and suitability and travelling comfort are poor.
Aiming at the problems, chinese patent application (application number: 201820850321.4) discloses an adjustable orthodontic mouth gag which comprises: the two supporting plates are of arc structures; the adjusting structure is fixed in the supporting plate and comprises a driving rod, a first adjusting plate, a sliding sleeve, a sliding rod, a second adjusting plate and bearings, wherein the first adjusting plate and the second adjusting plate are respectively fixed on the two supporting plates which are symmetrically arranged, the bearings are embedded into the first adjusting plate, the driving rod is clamped with the bearings, the driving rod is rotationally connected with the first adjusting plate through the bearings, the sliding sleeve and the sliding rod are respectively symmetrically arranged at the opposite ends of the first adjusting plate and the second adjusting plate, the sliding rod is connected with the sliding sleeve in a sliding mode, and the driving rod penetrates through the sliding sleeve to extend to the inner portion of the sliding rod and is in threaded connection with the driving rod. The distance between the two supporting plates of the mouth gag can be adjusted, so that the mouth gag is convenient for different people to use, the tension of the lip part of a patient can be adjusted, the operation flexibility is greatly improved, and the use comfort is improved.
However, the above-mentioned mouth gag still has the following drawbacks: the size of the opening can be adjusted by the opening device, but the tension limit of the mouth of the opening device is different for patients of different ages and patients of the same age, and some operations require larger mouth tension of the patient, but the tension limit of the mouth of the patient is often exceeded, so that the operation space and the visual field are limited, the operation is difficult, the operation performance is affected, the operation efficiency is affected, and even the operation effect is affected.
In order to have sufficient surgical space and vision, it is common practice to use the mouth gag to forcibly continue to open the mouth of the patient to meet the requirements, which can cause damage to the tissue of the mouth of the human body, such as muscle strain, tearing or dislocation.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a variable-pitch opening device, which aims to solve the technical problems that: how to solve the problem of limited operation space and visual field caused by the tension limit of the mouth of a patient.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a displacement type opening device, includes handle support, support first and support second all are rectangular form and set up relatively, support first and support second all set up on the handle support and can translate relatively, its characterized in that, support first and/or support second can also be in the translation of both relative handle support swing, still be equipped with on the handle support and make support first and/or support second swing back location's setting element first.
When the opening device is used, the first support body and the second support body are used for extending into the mouth of a patient, the teeth of the upper jaw of the patient are propped against the first support body, the teeth of the lower jaw of the patient are propped against the second support body, the two ends of the first support body and the two ends of the second support body are respectively located at two sides of the mouth, and the opening amplitude of the mouth can be realized by adjusting the relative translation of the first support body and the second support body. Meanwhile, the first support body and/or the second support body of the opening device can swing relative to the handle support in the translational plane of the first support body and/or the second support body, so that the distance between the first support body and the second support body can be adjusted by rotating, the opening width of one side of a mouth of a patient is larger, the opening width of the other side of the mouth of the patient is smaller, the opening width limit of the single side of the mouth of the same person is far greater than the synchronous opening width limit of the two sides of the mouth, and the first support body and the second support body are positioned by the positioning piece after being opened to a proper width. The opening device integrates the functions of synchronous opening at two sides and opening at one side, overcomes the technical prejudice, and improves the limit value of the opening amplitude of the mouth of a human body by fully utilizing the characteristics of the tissue structure of the human body compared with the prior opening device, so that the opening device has enough space to perform operation on the side, and the other side is adjusted to perform operation after the operation is finished, thereby ensuring the smoothness of the operation, improving the efficiency and maximally ensuring the effect of the operation. Meanwhile, the special structural design of the opening device also enables the adjusting mode to be richer, and the applicable medical occasion to be wider.
In the above-mentioned variable-pitch opening device, the first support body is rotatably connected to the handle support through a rotation shaft, and a driving assembly capable of driving the rotation shaft to rotate is further arranged on the handle support. Can control and drive the pivot through drive assembly and rotate, the pivot drives the swing of support body one to can open according to demand control patient's mouth unilateral, compare and open with both sides are synchronous and can open the range bigger, thereby can provide sufficient operation space, guaranteed the smoothness nature of operation, improved efficiency, also the effect of operation has been guaranteed to the maximum degree.
In the above-mentioned displacement type opening device, the driving assembly comprises a rack and a gear, the rack is slidably inserted on the handle support, one end of the rotating shaft is fixed to the first support body, the other end of the rotating shaft is rotatably connected to the handle support, the gear is fixed to the end of the rotating shaft, and the rack is meshed with the gear. During the use, pulling rack can drive the pivot through the cooperation of gear and rotate, and the pivot drives a relative handle support swing of supporter to can open according to demand control patient's mouth unilateral, easy and simple to handle, compare and open with both sides is synchronous and can open the range bigger, thereby can provide sufficient operation space, guaranteed the smoothness nature of operation, improved efficiency, also the effect of operation has been guaranteed to the maximum.
In the distance-changing type opening device, the first positioning piece is a positioning clamping plate, the middle part of the positioning clamping plate is hinged to the handle support, one end of the positioning clamping plate is provided with a first locking clamping tooth, the rack is provided with a plurality of second locking clamping teeth, an elastic piece is further arranged between the other end of the positioning clamping plate and the handle support, and the first locking clamping tooth on the positioning clamping plate is meshed with one of the second locking clamping teeth on the rack under the action of the elastic piece. Under the action of the elastic force of the elastic piece, the first locking clamping tooth on the positioning clamping plate is meshed with the second locking clamping tooth on the rack, so that the rack and the gear are in a clamping state, and a fixed opening amplitude is kept between the first supporting body and the second supporting body. During adjustment, only need press the location cardboard, the location cardboard overcomes the elastic force effect and upwards swings around the pin joint, and locking latch one breaks away from locking latch two and releases the locking, then the pulling rack, just can drive the regulation that patient's mouth unilateral opened the range through the cooperation effect of gear and gear just can drive the swing of supporter one, easy and simple to handle compares and opens with both sides in step and can open the range bigger to can provide sufficient operation space, guaranteed the smoothness nature of operation, improved efficiency, also the effect of operation has been guaranteed to the furthest.
In the above-mentioned displacement type opening device, the handle support is including being rectangular form body support and the lateral part support of connection in body support one side, have the installation cavity in the lateral part support, the gear setting is in the installation cavity and mesh with the rack, outside the installation cavity was worn out in both ends of rack all slides. The side support is convenient for the installation of the gear and the rack, and interference is avoided between the first support body and the second support body.
Alternatively, in the above-mentioned variable-pitch opening device, the driving assembly includes a worm wheel and a worm, the worm is rotatably connected to the handle support, one end of the rotating shaft is fixed to the first support, the other end of the rotating shaft is rotatably connected to the handle support, the worm wheel is fixed to the end of the rotating shaft, and the worm is in transmission fit with the worm wheel. During the use, rotate the worm, can drive the pivot through the cooperation effect of worm and worm wheel and rotate, the pivot drives a support body relative handle support swing to can open according to demand control patient's mouth unilateral, easy and simple to handle, compare and open with both sides are synchronous and can open the range bigger, thereby can provide sufficient operation space, guaranteed the smoothness nature of operation, improved efficiency, also the effect of operation has been guaranteed to the maximum.
In the above-mentioned displacement type opening device, the second support body is slidably connected to the body support, and the body support is further provided with a control assembly capable of driving the second support body to translate along the body support and then to realize positioning. The two sides of the first support body and the second support body can be synchronously adjusted in distance by controlling the assembly to translate and position the first support body and the second support body, so that the mouth opening device can be used for realizing synchronous opening of two sides of a mouth of a patient, synchronous opening of one side, synchronous opening of two sides, cooperation of opening of one side and the like, and the applicability is wider.
In the above-mentioned displacement type opening device, control the subassembly and include operating handle and slide bar, slide bar is along body support length direction sliding connection on the body support, operating handle's middle part articulates on the handle support, just operating handle's middle part has convex swing portion, have arcwall face and have transmission tooth one on this arcwall face on the swing portion, it has transmission tooth two to distribute along its length direction on the slide bar, transmission tooth one and transmission tooth two-phase meshing, support body two is fixed on the slide bar, control the subassembly still including the setting element two that can fix a position the slide bar. When the positioning device is used, the positioning of the sliding strip is firstly released by the positioning piece II, then the swinging part can swing around the hinging point by pressing the operating handle, the sliding strip is pushed to slide along the length direction of the body support by the matching action of the transmission tooth I on the arc surface of the swinging part and the transmission tooth II on the sliding strip, so that the support body II is driven to translate relative to the support body I on the body support, the two sides of the mouth of a patient are synchronously opened, and when the opening range is adjusted to a required opening range, the positioning piece II is repositioned and connected with the sliding strip again, so that the operation is simple and convenient.
In the distance-changing type opening device, the positioning piece II is a positioning block, the positioning block is provided with two positioning blocks and two positioning blocks are respectively located at two sides of the swinging part, the positioning block is in a strip shape, the middle part of the positioning block is hinged to the body support, one end of the positioning block is provided with a positioning part protruding towards the direction of the sliding bar, the positioning part is provided with a limiting tooth and is clamped into the second transmission tooth, one end of the positioning block provided with the limiting tooth is further provided with an opening groove, the swinging part is further provided with a linkage bar protruding towards two sides, the linkage bar stretches into the corresponding opening groove, the linkage bar is in contact with one side wall of the opening groove away from the sliding bar, a gap is reserved between the linkage bar and the other side wall of the opening groove, the other end of the positioning block is fixed to the body support, and the first transmission tooth, the second transmission tooth and the limiting tooth are bevel teeth, and the positioning block are made of elastic plastics.
Under normal condition, spacing tooth card on the locating piece of both sides goes into transmission tooth two to dead with transmission tooth one and transmission tooth two makes both sides unable realization transmission, when needs are adjusted, only need press operating handle once, and the swing portion on the operating handle can swing around articulated department, thereby the drive strip of swing portion one side upwards swings to promote with the tip of corresponding locating piece around articulated department upwards swing, and spacing tooth on this locating piece breaks away from transmission tooth two, and the other end deformation of this locating piece produces elastic force. The linkage bar at the other side of the swinging part swings downwards, a gap is reserved between the linkage bar and the lower side wall of the opening groove on the corresponding positioning block, no transmission relation exists between the linkage bar and the positioning block, meanwhile, when the swinging part swings, the first transmission tooth and the second transmission tooth on the arc surface of the swinging part are matched to have a thrust force on the sliding bar, and due to the fact that the limiting teeth and the second transmission teeth are helical teeth, one end of the positioning block with the limiting teeth can be pushed to swing upwards around the hinging position under the action of the thrust force to release the limitation, the other end of the positioning block deforms to generate elastic force, the sliding bar slides to the position of one transmission tooth, then the two positioning blocks reset under the action of the deformation elastic force of the positioning block, and the two limiting teeth are clamped into the second transmission teeth again to realize positioning together. According to the operation analogy, the control support body can translate relative to the first support body, the operation is convenient, and each time the operation handle is pressed, the support body translates by a distance of the second transmission gear, and the adjusted distance can be accurately perceived.
In the above-mentioned displacement type opening device, the sliding groove has been seted up along its length direction on the body support, sliding strip sliding connection is in the sliding groove, be fixed with the connecting rod on the sliding strip, the notch that the connecting rod stretches out the sliding groove with the supporter is two links firmly, offer the mouth of stepping down between the body that runs through on the diapire of sliding groove, the oscillating portion passes the mouth of stepping down and stretches into in the sliding groove, the locating piece inlays and establishes in the mouth of stepping down. Through above-mentioned setting for control subassembly and supporter one and supporter are located the both sides of body support respectively, can not take place to interfere, also have sufficient operating space simultaneously.
In the above-mentioned displacement type opening device, the handle support still includes the operation panel, still have spacing post on the body support, the one end of operation panel is fixed on spacing post, offer the hole of stepping down that is the bar on the operation panel, the operation handle part is embedded to step down downthehole and the middle part of operation handle articulates on the inner wall of stepping down the hole, the other end of operation panel is the free end and has the clearance between this end and the body support, the middle part of operation panel has convex arc portion of leaning on, the arc is leaned on the position and is located one side that the articulated department of operation handle and operation panel is close to the operation panel free end, the arc top of arc portion of leaning on is supported and is leaned on the body support, the operation panel adopts elastic plastic material to make. The operation handle is hinged to the operation board, after the operation handle is used, the free end of the operation board is pressed downwards, the other end of the operation board can swing upwards through the lever principle, so that the operation handle is driven to move upwards wholly, the limiting teeth of the two positioning blocks and the first transmission tooth on the operation handle are separated from the second transmission tooth on the sliding bar, the sliding bar can be directly pushed to slide, and the second support body can be shifted to reset. And because the other end of the operation plate opposite to the free end is fixed on the limit post, the operation plate is elastically deformed when swinging upwards under the action of the lever principle, and the operation plate can automatically reset after the pressing force of the free end disappears, so that the whole operation handle is driven to reset. Through the setting of operation panel for the operation is more simple and convenient.
In the above-mentioned displacement type opening device, the notch both sides of sliding tray still have the location turn-ups that turn over inwards, slider sliding connection in the sliding tray just with the location turn-ups is leaned on mutually, the mounting groove has been seted up on the slider, connecting rod one end is fixed with the support body two phases, and the other end has the installation piece, the installation piece is protruding style of calligraphy, the installation piece inlays to be established in the mounting groove and two step faces on the installation piece paste respectively and lean on two location turn-ups, sliding tray one end runs through the body support. The mounting block is embedded in the mounting groove of the sliding strip and is positioned through the positioning flanging clamping connection, and meanwhile, one end of the sliding groove penetrates through the body bracket, so that detachable connection between the second support body and the sliding strip is realized, and the sliding strip is convenient to replace.
In the above-mentioned variable-pitch opening device, the first support body and the second support body are both arc-shaped, the two sides of the first support body are both provided with a first limit flanging formed by turning over towards a direction far away from the second support body, and the two sides of the second support body are both provided with a second limit flanging formed by turning over towards a direction far away from the second support body. The arc design accords with the human mouth contour design, and the design of spacing turn-ups one and spacing turn-ups two can support with the tooth and lean on, prevents that the patient from unconsciously spitting whole mouth gag from the mouth and influencing the treatment.
In the distance-variable opening device, the first support body and/or the second support body are/is further provided with binding pieces. The binding may be a strap or velcro to facilitate the securement of the entire mouth gag to the patient's head.
In the above-mentioned variable-pitch opening device, the operating handle is further provided with a plurality of force grooves, the force grooves are arc-shaped, and a continuous corrugated structure is formed between the force grooves. Through the design, the operation is more comfortable, and the hand feeling is better.
Compared with the prior art, the variable-pitch opening device has the following advantages:
1. The opening device integrates the functions of synchronous opening at two sides and single-side opening, can realize synchronous opening at two sides, single-side opening, synchronous opening at two sides and single-side opening matching of the mouth of a patient and other application modes, and has wider applicability.
2. Through rotating the design that realizes unilateral regulation, make full use of human tissue structure's characteristic, compared current mouth gag has promoted the limit value that human mouth can open to there is sufficient space to carry out operation to this side, after having accomplished, the retuning opposite side carries out operation, has guaranteed the smoothness nature of operation, has improved efficiency, also furthest has guaranteed the effect of operation.
3. The whole structure is simple and the operation is convenient.
4. The arc structural design of the first support body and the second support body accords with the mouth outline design of a human body, is more comfortable, and can be abutted against teeth by the design of the first limit flanging and the second limit flanging, so that the whole mouth gag can be prevented from being unconsciously spitted from the mouth by a patient to influence treatment.
Drawings
Fig. 1 is a structural view of a first support body and a second support body of the variable-pitch opening device in a closed state.
Fig. 2 is a structural view of the first and second support bodies of the variable-pitch type opening device in a state that both sides are synchronously opened.
Fig. 3 is a structural view showing a state in which a first support body and a second support body of the variable-pitch opening device are opened to the left.
Fig. 4 is a structural view showing a state in which a first support body and a second support body of the variable-pitch opening device are opened on the right side.
Fig. 5 is a cross-sectional view of the variable pitch opening device.
Fig. 6 is a second cross-sectional view of the variable pitch opening device.
Fig. 7 is a perspective view of the body mount.
Fig. 8 is a perspective view of the second support body.
Fig. 9 is a perspective view of the slider.
In the figure, 1, a handle bracket; 1a, a body bracket; 1a1, a sliding groove; 1a2, a yielding port; 1a3, positioning flanging; 1b, side brackets; 1b1, a mounting cavity; 1c, an operation panel; 1c1, a relief hole; 2. a first support body; 2a, a first limit flanging; 3. a second support body; 3a, limiting flanging II; 4. a first positioning piece; 4a, positioning clamping plates; 4a1, locking latch one; 5. a rotating shaft; 6. a rack; 6a, locking the second latch; 7. a gear; 8. an elastic member; 9. an operation handle; 9a, a swinging part; 9a1, first transmission gear; 9a2, linkage bars; 10. a sliding bar; 10a, a second transmission gear; 10b, mounting grooves; 11. a positioning block; 11a, a positioning part; 11a1, spacing teeth; 11b, an open slot; 12. a limit column; 13. a connecting rod; 14. a mounting block; 15. a binding.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1-9, the distance-variable opening device comprises a handle bracket 1, a first support body 2 and a second support body 3, wherein the first support body 2 and the second support body 3 are both in long strips and are oppositely arranged, the first support body 2 and the second support body 3 are both arranged on the handle bracket 1 and can relatively translate, the first support body 2 and/or the second support body 3 can relatively oscillate relative to the handle bracket 1 in the translation plane of the first support body and the second support body, and a first positioning piece 4 which can enable the first support body 2 and/or the second support body 3 to oscillate and then be positioned is further arranged on the handle bracket 1.
In this embodiment, the first support body 2 is capable of swinging relative to the handle holder 1 in a translational plane of both. The first support body 2 and the second support body 3 are arc-shaped and accord with the design of the mouth outline of a human body. Both sides of the first support body 2 are provided with a first limit flanging 2a which is formed by turning over towards the direction away from the second support body 3, both sides of the second support body 3 are provided with a second limit flanging 3a which is formed by turning over towards the direction away from the first support body 2, and the first limit flanging 2a and the second limit flanging 3a can be abutted against teeth to prevent patients from unconsciously spit the whole mouth gag from the mouth to influence treatment. The second support body 3 is also provided with a binding piece 15, and the binding piece 15 can be a binding belt or a magic tape, so that the whole mouth gag can be conveniently fixed on the head of a patient.
Specifically, the handle bracket 1 includes a long-strip-shaped body bracket 1a, an operation board 1c, and a side bracket 1b connected to one side of the body bracket 1a, wherein the first support body 2 is rotatably connected to the side bracket 1b through a rotation shaft 5, and a driving component capable of driving the rotation shaft 5 to rotate is further arranged on the side bracket 1 b.
As shown in fig. 5, the side bracket 1b is provided with a mounting cavity 1b1, the driving assembly comprises a rack 6 and a gear 7, the rack 6 is slidably arranged in the mounting cavity 1b1, and both ends of the rack slide out of the mounting cavity 1b 1. One end of the rotating shaft 5 is fixed with the first support body 2, the other end is rotatably connected to the side support 1b, the end extends into the mounting cavity 1b1 and is internally fixed with a gear 7, and the rack 6 is meshed with the gear 7. The upper end face of the side support 1b is also provided with a containing groove, the first positioning piece 4 is a positioning clamping plate 4a, and the middle part of the positioning clamping plate 4a is hinged on two side walls of the containing groove. The bottom of holding tank still has offered the opening with installation cavity 1b1 intercommunication, and the one end of location cardboard 4a has locking latch one 4a1, is equipped with a plurality of locking latches two 6a on the back of rack 6 relative being equipped with tooth one side, is equipped with elastic component 8 between the bottom of the other end of location cardboard 4a and holding tank, and the locking latch one 4a1 on the location cardboard 4a can pass the opening and stretch into in the installation cavity 1b1 with one of them locking latch two 6a intermeshing on the rack 6 under the effect of elastic component 8. In this embodiment, the elastic member 8 is a spring, the positioning clamping plate 4a and the bottom wall of the accommodating groove are respectively provided with a connecting column, and two ends of the spring are respectively sleeved on the two connecting columns.
Further, as shown in fig. 6-9, the body support 1a is further provided with an operation assembly capable of driving the second support body 3 to translate along the body support 1a and realizing positioning after translation, and the operation assembly comprises an operation handle 9, a sliding bar 10 and a second positioning member. The body bracket 1a is provided with a sliding groove 1a1 along the length direction, and one end of the sliding groove 1a1 penetrates through the body bracket 1a. The two sides of the notch of the sliding groove 1a1 are also provided with positioning flanges 1a3 which are turned inwards, and the sliding strip 10 is arranged in the sliding groove 1a1 in a sliding penetrating way and is abutted against the positioning flanges 1a 3. The sliding strip 10 is provided with a mounting groove 10b, the mounting groove 10b is internally provided with a mounting block 14, the mounting block 14 is in a convex shape, two step surfaces on the mounting block 14 are respectively abutted against the two positioning flanges 1a3, the mounting block 14 is also fixedly connected with a connecting rod 13, and the connecting rod 13 extends out of a notch of the sliding groove 1a1 to be fixedly connected with the second support body 3, so that the second support body 3 is detachably connected with the sliding strip 10, and the sliding strip is convenient to replace. An observation window communicated with the sliding groove 1a1 is further formed in one side wall of the body support 1a, scales are arranged on the sliding bar 10, and the sliding bar 10 can penetrate through the distance moved by the observation window.
The body support 1a is further provided with a limiting column 12, one end of the operation plate 1c is fixed on the limiting column 12, the middle part of the operation plate 1c is provided with a protruding arc-shaped abutting part, the arc top of the arc-shaped abutting part abuts against the body support 1a, the other end of the operation plate 1c is a free end, a gap is reserved between the free end and the body support 1a, and the operation plate 1c is made of elastic plastic materials.
The operation plate 1c is provided with a strip-shaped yielding hole 1c1, the operation handle 9 is partially embedded into the yielding hole 1c1, the middle part of the operation handle 9 is hinged on the inner wall of the yielding hole 1c1, and the arc-shaped abutting part is positioned on one side, close to the free end of the operation plate 1c, of the hinged part of the operation handle 9 and the operation plate 1c. The middle part of the operating handle 9 is provided with a convex swinging part 9a, the swinging part 9a is provided with an arc-shaped surface, the arc-shaped surface is provided with a first transmission tooth 9a1, a plurality of second transmission teeth 10a are distributed on the sliding strip 10 along the length direction of the sliding strip, the bottom wall of the sliding groove 1a1 is provided with a yielding opening 1a2 penetrating through the body, the swinging part 9a penetrates through the yielding opening 1a2 and stretches into the sliding groove 1a1, and the first transmission tooth 9a1 is meshed with the second transmission tooth 10 a.
The second positioning piece is a positioning piece 11, and the positioning piece 11 is in a strip shape and is made of elastic plastic. The two positioning blocks 11 are respectively positioned at two sides of the swinging part 9a, and the two positioning blocks 11 are embedded in the yielding port 1a 2. The middle part of locating piece 11 articulates on body support 1a, and the one end of locating piece 11 has towards slider 10 direction protrusion location portion 11a, is equipped with spacing tooth 11a1 on the location portion 11a and spacing tooth 11a1 card goes into transmission tooth two 10 a. The one end that has spacing tooth 11a1 on the locating piece 11 has still offered open slot 11b, still have on the swing portion 9a to both sides convex linkage strip 9a2, linkage strip 9a2 stretches into corresponding open slot 11b in, linkage strip 9a2 is close to with open slot 11b one side lateral wall that keeps away from slider 10, there is the clearance between linkage strip 9a2 and open slot 11 b's the opposite side lateral wall, the other end of locating piece 11 is fixed on body support 1a, transmission tooth one 9a1, transmission tooth two 10a and spacing tooth 11a1 are the skewed tooth.
In addition, the operating handle 9 is also provided with a plurality of force grooves, the force grooves are arc-shaped, and a continuous corrugated structure is formed among the force grooves, so that the operation is more comfortable, and the hand feeling is better.
The opening device integrates the functions of synchronous opening at two sides and opening at one side. When in use, the first support body 2 and the second support body 3 are mutually buckled in an ellipse shape, as shown in figure 1. The first support body 2 and the second support body 3 are used for extending into the mouth of a patient, the teeth of the upper jaw of the patient are propped against the first support body 2, the teeth of the lower jaw are propped against the second support body 3, and the two ends of the first support body 2 and the second support body 3 are respectively positioned at the two sides of the mouth.
When the two sides of the mouth of a patient need to be synchronously opened, the operating handle 9 is pressed down, the swinging part 9a on the operating handle 9 can swing around the hinging position, the linkage bar 9a2 on one side of the swinging part 9a swings upwards to push the end part of the corresponding positioning block 11 to swing upwards around the hinging position, the limiting teeth 11a1 on the positioning block 11 are separated from the transmission teeth two 10a, and the other end of the positioning block 11 deforms to generate elastic force. The linkage bar 9a2 at the other side of the swinging part 9a swings downwards, because a gap is reserved between the linkage bar 9a2 and the lower side wall of the opening groove 11b on the corresponding positioning block 11, no transmission relation exists between the linkage bar 9a2 and the positioning block 11, meanwhile, when the swinging part 9a swings, the first transmission tooth 9a1 on the arc surface of the swinging part 9a is matched with the second transmission tooth 10a to have a thrust force on the sliding bar 10, because the limiting tooth 11a1 and the second transmission tooth 10a are helical teeth, the limiting tooth 11a1 and the second transmission tooth 10a can be pushed to upwards swing around the hinging position under the action of the helical tooth inclined surfaces to release limit, the other end of the positioning block 11 deforms to generate elastic force, the sliding bar 10 slides the position of one transmission tooth, and then the two positioning blocks 11 reset under the action of deformation elastic force of the positioning block 11, and the two limiting teeth 11a1 are clamped into the second transmission tooth 10a again to realize positioning together. According to the operation analogy, the translation of the support body II 3 relative to the support body I2 can be controlled, the synchronous opening of the two sides of the mouth of a patient is realized, the operation is convenient, and each time the operation handle 9 is pressed, the translation of the support body II 3 is equivalent to the distance of one transmission tooth II 10a, and the adjusted distance can be accurately perceived, as shown in fig. 2.
After the operation plate is used, the free end of the operation plate 1c is pressed downwards, the other end of the operation plate 1c can swing upwards through the lever principle, so that the operation handle 9 is driven to move upwards wholly, the limiting teeth 11a1 of the two positioning blocks 11 and the first transmission tooth 9a1 on the operation handle 9 are separated from the second transmission tooth 10a on the sliding strip 10, the sliding strip 10 can be directly pushed to slide, and the second support body 3 can be reset in a translational mode. Moreover, since the other end of the operation plate 1c opposite to the free end is fixed on the limit post 12, the operation plate 1c is elastically deformed when swinging upwards under the action of the lever principle, and after the pressing force of the free end disappears, the operation plate 1c can be automatically reset, thereby driving the whole operation handle 9 to reset.
If the left mouth of the patient needs to be treated or a larger operation space is needed, the positioning clamping plate 4a is pressed down, the positioning clamping plate 4a swings upwards around the hinge point against the action of elastic force, and the locking clamping tooth I4 a1 is separated from the locking clamping tooth II 6a to be unlocked. The rack 6 is pulled to the right side, the rotating shaft 5 can be driven to rotate through the cooperation of the gear 7 and the gear 7, the rotating shaft 5 drives the left end of the first support body 2 to swing upwards, the right end of the first support body swings downwards, so that the opening amplitude of the left side of a patient's mouth is larger, the opening amplitude of the right side of the patient's mouth is smaller, the limit of the opening amplitude of the single side of the mouth is far larger than the limit of the synchronous opening amplitude of the two sides of the mouth, thereby obtaining larger operation space and visual field, after the proper opening amplitude is regulated, the positioning clamping plate 4a is loosened, and the positioning clamping plate 4a enables the first locking clamping tooth 4a1 to be clamped into the second locking clamping tooth 6a again under the action of elastic force to realize positioning, as shown in fig. 3.
If the right mouth of the patient needs to be treated or a larger operation space is needed, the positioning clamping plate 4a is pressed down, the positioning clamping plate 4a swings upwards around the hinge point against the action of elastic force, and the locking clamping tooth I4 a1 is separated from the locking clamping tooth II 6a to be unlocked. The rack 6 is pulled to the left side, the rotating shaft 5 can be driven to rotate through the cooperation of the gear 7 and the gear 7, the rotating shaft 5 drives the right end of the first support body 2 to swing upwards, the left end swings downwards, so that the opening amplitude of the right side of a patient's mouth is larger, the opening amplitude of the left side is smaller, the limit of the opening amplitude of the single side of the mouth is far greater than the limit of the synchronous opening amplitude of the two sides of the mouth, thereby obtaining larger operation space and visual field, after the proper opening amplitude is regulated, the positioning clamping plate 4a is loosened, and the positioning clamping plate 4a enables the first locking clamping tooth 4a1 to be clamped into the second locking clamping tooth 6a again under the action of elastic force to realize positioning, as shown in fig. 4.
The opening device can realize multiple application modes of synchronous opening of two sides, synchronous opening of one side, matching of synchronous opening of two sides and one side of the mouth of a patient and the like, and has wider applicability. And fully utilized the characteristic of human tissue structure, compared with the limit value that the current mouth of human body can open has been promoted to have sufficient space can carry out the operation to this side, after having accomplished, adjust the opposite side and carry out the operation, guaranteed the smoothness nature of operation, improved efficiency, also furthest guaranteed the effect of operation.
Example two
The structure of this embodiment is substantially the same as that of the first embodiment, except that: the driving assembly comprises a worm wheel and a worm, the worm is rotationally connected to the handle support 1, one end of the rotating shaft 5 is fixed with the first support body 2, the other end of the rotating shaft is rotationally connected to the handle support 1, the worm wheel is fixed at the end of the rotating shaft, and the worm is in transmission fit with the worm wheel. During the use, rotate the worm, can drive pivot 5 through the cooperation effect of worm and worm wheel and rotate, pivot 5 drives the relative handle support 1 swing of support body one 2 to can open according to demand control patient's mouth unilateral, easy and simple to handle, compare and open with both sides are synchronous and can open the range is bigger, thereby can provide sufficient operation space, guaranteed the smoothness nature of operation, improved efficiency, also the effect of operation has been guaranteed to the maximum.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although 1, handle brackets are used more herein; 1a, a body bracket; 1a1, a sliding groove; 1a2, a yielding port; 1a3, positioning flanging; 1b, side brackets; 1b1, a mounting cavity; 1c, an operation panel; 1c1, a relief hole; 2. a first support body; 2a, a first limit flanging; 3. a second support body; 3a, limiting flanging II; 4. a first positioning piece; 4a, positioning clamping plates; 4a1, locking latch one; 5. a rotating shaft; 6. a rack; 6a, locking the second latch; 7. a gear; 8. an elastic member; 9. an operation handle; 9a, a swinging part; 9a1, first transmission gear; 9a2, linkage bars; 10. a sliding bar; 10a, a second transmission gear; 10b, mounting grooves; 11. a positioning block; 11a, a positioning part; 11a1, spacing teeth; 11b, an open slot; 12. a limit column; 13. a connecting rod; 14. a mounting block; 15. binding, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (5)
1. The utility model provides a displacement opening device, includes handle support (1), supporter one (2) and supporter two (3) are rectangular form and relative setting, supporter one (2) and supporter two (3) all set up on handle support (1) and can translate relatively, its characterized in that, supporter one (2) and/or supporter two (3) can also swing relative handle support (1) in the translation of both, still be equipped with on handle support (1) and make supporter one (2) and/or supporter two (3) swing back location piece one (4); the two sides of the first support body (2) are respectively provided with a first limit flanging (2 a) which is formed by turning towards the direction far away from the second support body (3), the two sides of the second support body (3) are respectively provided with a second limit flanging (3 a) which is formed by turning towards the direction far away from the first support body (2), the first support body (2) is rotationally connected to the handle support (1) through a rotating shaft (5), the handle support (1) is also provided with a driving component which can drive the rotating shaft (5) to rotate, the driving component comprises a rack (6) and a gear (7), one end of the rack (6) is slidably arranged on the handle support (1), one end of the rotating shaft (5) is fixed with the first support body (2), the other end of the rack (6) is rotationally connected to the handle support (1) and is fixedly provided with the gear (7), or the driving component comprises a worm and a worm, the rotating shaft (5) is rotationally connected to the handle support (1), one end of the worm wheel (2) is fixedly connected to the handle support (4) and is fixedly arranged on the middle part (4) and is matched with the middle part (4) in a positioning way, one end of location cardboard (4 a) has locking latch one (4 a 1), be equipped with a plurality of locking latch two (6 a) on rack (6) or the worm, still be equipped with elastic component (8) between the other end of location cardboard (4 a) and handle support (1), and the locking latch one (4 a 1) on location cardboard (4 a) and rack (6) or one of them locking latch two (6 a) intermeshing on the worm under the effect of elastic component (8), handle support (1) are including being rectangular form body support (1 a) and lateral part support (1 b) of connection in body support (1 a) one side, have installation cavity (1 b 1) in lateral part support (1 b), gear (7) set up in installation cavity (1 b 1) and with rack (6) looks meshing, outside installation cavity (1 b 1) are worn out to both ends of rack (6) all slide.
2. The variable-pitch opening device according to claim 1, wherein the second support body (3) is slidably connected to the body support (1 a), and a control assembly capable of driving the second support body (3) to translate along the body support (1 a) and realizing positioning after the translation is further arranged on the body support (1 a).
3. The variable-pitch opening device according to claim 2, wherein the control assembly comprises an operation handle (9) and a sliding bar (10), the sliding bar (10) is slidably connected to the body bracket (1 a) along the length direction of the body bracket (1 a), the middle part of the operation handle (9) is hinged to the handle bracket (1), the middle part of the operation handle (9) is provided with a protruding swinging part (9 a), the swinging part (9 a) is provided with an arc-shaped surface and a transmission tooth I (9 a 1) thereon, the sliding bar (10) is provided with a transmission tooth II (10 a) along the length direction thereof, the transmission tooth I (9 a 1) is meshed with the transmission tooth II (10 a), the support body II (3) is fixed to the sliding bar (10), and the control assembly further comprises a positioning element II capable of positioning the sliding bar (10).
4. The distance-variable opening device according to claim 3, wherein the second positioning piece is a positioning piece (11), the positioning piece (11) is provided with two positioning pieces, the two positioning pieces (11) are respectively positioned at two sides of the swinging part (9 a), the positioning piece (11) is in a strip shape, the middle part of the positioning piece (11) is hinged on the body bracket (1 a), one end of the positioning piece (11) is provided with a positioning part (11 a) protruding towards the direction of the sliding strip (10), the positioning part (11 a) is provided with a limiting tooth (11 a 1), the limiting tooth (11 a 1) is clamped into the transmission tooth (10 a), one end of the positioning piece (11) provided with the limiting tooth (11 a 1) is also provided with an opening groove (11 b), the swinging part (9 a) is also provided with a linkage strip (9 a 2) protruding towards two sides, the linkage strip (9 a 2) stretches into the corresponding opening groove (11 b), the linkage strip (9 a 2) and the other side wall (11 a) of the positioning piece (11 a) is provided with a clearance between the sliding strip (11 a) and the transmission tooth (11 a) and the other side wall (1 a) which is far away from the sliding strip (10 a), the other side wall (1 a) is provided with the other side wall (1) of the transmission tooth (1), the positioning block (11) is made of elastic plastic.
5. The variable-pitch opening device according to claim 4, wherein the handle bracket (1) further comprises an operation plate (1 c), the body bracket (1 a) further comprises a limit post (12), one end of the operation plate (1 c) is fixed on the limit post (12), a strip-shaped yielding hole (1 c 1) is formed in the operation plate (1 c), the operation handle (9) is partially embedded in the yielding hole (1 c 1) and the middle part of the operation handle (9) is hinged on the inner wall of the yielding hole (1 c 1), the other end of the operation plate (1 c) is a free end and a gap is reserved between the free end and the body bracket (1 a), the middle part of the operation plate (1 c) is provided with a protruding arc-shaped abutting part, the arc-shaped abutting part is positioned on one side, close to the free end of the operation plate (1 c), of the operation handle (9), the arc-shaped top of the arc-shaped abutting part abuts against the body bracket (1 a), and the operation plate (1 c) is made of elastic plastic materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979552.4A CN110613524B (en) | 2019-10-15 | 2019-10-15 | Pitch-variable opening device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910979552.4A CN110613524B (en) | 2019-10-15 | 2019-10-15 | Pitch-variable opening device |
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| CN110613524B true CN110613524B (en) | 2024-04-19 |
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| CN108836246A (en) * | 2018-06-30 | 2018-11-20 | 中山大学肿瘤防治中心 | Oral cavity mouth gag |
| CN209474829U (en) * | 2018-09-27 | 2019-10-11 | 浙江工业大学 | Jawbone device for positioning and securing for navigator fix in robot tooth-implanting operation |
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| US7238144B2 (en) * | 2004-12-06 | 2007-07-03 | Yolanda Carmen Ferrara | Facial and neck muscle exercising device |
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|---|---|---|---|---|
| WO2001024757A1 (en) * | 1999-10-06 | 2001-04-12 | Dynasplint Systems, Inc. | Device to assist in therapy of patient who has limited jaw opening |
| KR100686607B1 (en) * | 2006-03-21 | 2007-02-26 | 주식회사 예성기업 | Oral opening device for dentistry patient with tongue protection unit |
| CN205251480U (en) * | 2015-12-17 | 2016-05-25 | 温州康诺克医疗器械有限公司 | Mouth -gag |
| CN207785306U (en) * | 2017-07-05 | 2018-08-31 | 荣菁芳 | Oral cavity mouth gag |
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| CN110613524A (en) | 2019-12-27 |
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