CN212521721U

CN212521721U - Dental oral cavity expander convenient to adjust

Info

Publication number: CN212521721U
Application number: CN202020556846.4U
Authority: CN
Inventors: 王江燕
Original assignee: Ezhou Maternal And Child Health Care Hospital
Current assignee: Ezhou Maternal And Child Health Care Hospital
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-02-12
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a dentistry oral cavity expander convenient to adjust, be in including elastic component and symmetry setting the backup pad of elastic component both sides, the backup pad is for the arc that matches with mouth angle shape, the vertical tangent plane of backup pad still is equipped with the pipette for the laminating mouth angle inside and outside for the U-shaped, the pipette with connect through universal adjusting part between the backup pad, realize through universal adjusting part the rotation of pipette and in the axial removal of pipette, the pipette top is connected with the liquid suction pipe of drawing liquid equipment. The pipette capable of randomly adjusting the liquid suction angle is arranged, so that the accumulated saliva at different parts of the oral cavity can be effectively absorbed, the whole device is simple in structure, and the oral cavity examination or operation is not influenced; the pipette is directly fixed on the dilator without the assistance of other medical personnel.

Description

Dental oral cavity expander convenient to adjust

Technical Field

The utility model belongs to the technical field of medical instrument, especially a dentistry oral cavity expander convenient to adjust.

Background

When a patient is examined or operated in the oral cavity in a dental or private dental office of a hospital, the oral cavity of the patient needs to be expanded as much as possible in order to facilitate observation. Generally, a doctor holds the oral reflector with one hand to go deep into the oral cavity, and pushes and pulls the lips of a patient with the handle of the oral reflector, so that the oral cavity part to be observed/operated is easier to observe as much as possible, but the mode not only causes discomfort of the lips of the patient, but also influences the operation of the doctor. For complex oral surgery, because everyone's face shape, tooth arrangement etc. are different, hardly guarantee to observe clearly the oral disease position, this also has omission and operation risk to causing the inspection easily. In addition, the salivary glands continuously secrete saliva to accumulate in the oral cavity during examination, which also affects the operation. The conventional method is to suspend spitting out saliva or otherwise use a liquid suction device to extend a pipette into the mouth to suck up saliva, and the pipette is either held by another person or hung on the lip of a patient, which causes waste of resources for doctors or discomfort to the lips of the patient.

In the existing patent, for example, the mouth support with saliva suction function provided by granted patent CN202223198U is provided with an upper inclined plate and a lower inclined plate on a support plate, and an upper corner surface and a lower corner surface are respectively arranged on the upper inclined plate and the lower inclined plate, the upper corner surface and the lower corner surface are respectively provided with protruding corners adapted to upper teeth and lower teeth for convenient attachment, and a saliva suction pipe is arranged in the middle of the support plate. However, such devices do not fit a wide variety of patients with varying tooth shapes and arrangements. The saliva sucking tube of this patent cannot adjust the angle of sucking saliva at any time because saliva flows in the oral cavity and the secretion site has randomness.

For example, in the digestive endoscope mouth pad provided in patent CN203841668U, a U-shaped lip sealing silicone ring is provided to expand the lips, and a mouth opening tube is provided to connect with a drainage bag or a negative pressure suction bag to absorb liquid such as saliva. The opening tube of the device is fixedly arranged, and the function of adjusting the saliva sucking angle at any time to absorb the saliva secreted by different parts of the oral cavity can not be achieved.

Disclosure of Invention

In order to solve the problem of the prior art, the utility model provides a dentistry oral cavity expander convenient to adjust through set up special saliva absorbing mechanism on lip expansion silica gel circle next door, can save doctor's resource, can adjust the angle that absorbs saliva at any time again, realizes through following technical scheme.

The utility model provides a dentistry oral cavity expander convenient to adjust, is in including elastic component and symmetry the backup pad of elastic component both sides, the backup pad is for the arc that matches with the mouth angle shape, the vertical section of backup pad is used for laminating mouth angle inside and outside for the U type, still is equipped with the pipette, the pipette with connect through universal adjusting part between the backup pad, realize through universal adjusting part the rotation of pipette and in pipette axial removal, the pipette top is connected with the liquid suction pipe of drawing liquid equipment.

Above-mentioned oral cavity expander's elastic component can keep the flexible of backup pad, makes it the different people's of laminating mouth type, guarantees that the backup pad can expand suitable size with the mouth, and 2 backup pads set to arc be for the shape of adaptation mouth both sides mouth angle, and the vertical section of backup pad sets up to the U-shaped is for making the backup pad firmly laminate on mouth angle surface, prevents that the backup pad slides when oral surgery and influences the operation and go on. When a patient receives oral examination, salivary glands on two sides of the oral cavity continuously secrete saliva and gradually accumulate in a space between the inner walls on two sides of the oral cavity and the tongue, liquid suction pipes are respectively arranged on two sides of the dilator, and the liquid suction pipes are made of hard materials such as metal or hard plastic and can respectively suck saliva accumulated on two sides of the oral cavity. Because the space on any side of the oral cavity is still larger, the pipette is connected with the supporting plate through the universal adjusting piece, so that the direction of the pipette can be adjusted within a larger angle range. Compared with the above-mentioned reference, the pipette is capable of sucking up saliva accumulated in a larger range inside the same oral cavity. The liquid suction pipe does not need to be detached and can be detachably connected with the liquid suction pipe of the liquid suction device, so that the oral cavity dilator can be taken and used at will. The liquid pumping device is a device commonly used in dentistry, is used for providing negative pressure to suck saliva, generally comprises a negative pressure air pump and a liquid storage tank, and can also be in other structural forms (such as a negative pressure suction bag and the like), and any device with a liquid pumping pipe and a liquid pumping function can be used in the patent. The using method of the oral cavity dilator comprises the steps of extruding the elastic piece by hands, attaching and fixing the two supporting plates on the corners of the mouths at two sides, then taking the elastic piece away, recovering the initial state of the elastic piece, gradually expanding the mouths, then connecting the liquid suction pipe of the liquid suction equipment with the liquid suction pipe, starting the liquid suction equipment, and then starting the oral cavity operation. When the saliva at different positions of the oral cavity on the same side needs to be sucked, the angle can be adjusted by only holding the liquid suction pipe or the liquid suction pipe. When the saliva of opposite side oral cavity needs to be drawn, only need pull down the liquid suction pipe, be connected to the liquid suction pipe on the backup pad of opposite side can.

Preferably, universal regulating part includes spherical universal joint and first spacing collar, first spacing collar pass through spherical universal joint with the backup pad is connected, the imbibition pipe is equipped with the spout along the axial, be equipped with on the first spacing collar with the slide rail that the spout matches, the imbibition pipe passes first spacing collar slides in first spacing collar, first spacing collar inner wall is equipped with the silica gel layer, the silica gel layer with the imbibition pipe contacts. The spacing collar adopts stereoplasm materials such as metal or duroplasts, spherical universal energy-conserving enough help pipette multi-angle modulation, the effect on silica gel layer makes in close contact with between the inner wall of first spacing collar and the outer wall of pipette, and produce the frictional force of certain degree through the silica gel layer, the frictional force size receives extruded degree decision by the silica gel layer, the silica gel and the syringe inner wall contact's of push rod head in the medical syringe mode specifically can be referred to, both can make the pipette slide in first spacing collar, slide again can keep relatively fixed to the somewhere after, thereby need not hold up the pipette all the time.

Preferably, the universal adjusting part comprises a ball universal joint and a second limiting ring, the second limiting ring is connected with the supporting plate through the ball universal joint, an internal thread is arranged on the inner wall of the second limiting ring, an external thread matched with the internal thread is arranged on the outer wall of the pipette, and the pipette is inserted into the second limiting ring in a rotating mode. As another mode, the liquid suction pipe is rotatably inserted into the limiting ring through threads, the liquid suction pipe can be kept at a fixed position through the limiting effect of the threads, when the angular position of the liquid suction pipe needs to be adjusted again, the liquid suction pipe of the liquid suction device is taken down from the top end of the liquid suction pipe, the liquid suction pipe is held to rotate by taking the spherical universal joint as a fulcrum, the liquid suction pipe is rotated to move axially to be adjusted, and then the liquid suction pipe of the liquid suction device is reconnected.

Preferably, the elastic piece is a U-shaped elastic plastic rod, the elastic plastic rod is provided with anti-skidding lines, and the elastic plastic rod is obliquely and upwards arranged relative to the plane where the supporting plate is located. The elastic plastic rod can be extruded and deformed by hands, and can recover the original shape after being loosened, and the anti-skid lines are arranged to facilitate the operation; when the dilator is used, in order to avoid the elastic piece from colliding with the lips and the face of a patient, the elastic piece is obliquely arranged towards the plane where the supporting plate is located (namely above the lips), the oblique angle can be set according to the actual condition, but cannot be perpendicular to the plane where the supporting plate is located, otherwise, the sight of a doctor is easily influenced, and the operation space is blocked.

Preferably, the elastic component is 2 symmetry settings and is in the elasticity telescopic link at backup pad both ends, elasticity telescopic link includes that inner tube and cover are established the outer tube outside the inner tube, the outer tube is inside to be equipped with and to be used for the flexible spring of inner tube. The inner space enclosed by the 2 symmetrically arranged elastic telescopic rods and the 2 symmetrically arranged supporting plates is used for performing operation.

Preferably, the pipette tip is detachably connected to the extractor tube of the extraction device by means of a screw thread.

Preferably, the pipette tip is detachably connected to the aspiration tube of the aspiration device by means of a rubber tube. The common yellow rubber tube of hospital can be chooseed for use to the rubber tube, has the pipette and the liquid suction pipe that elasticity can connect different pipe diameters.

Preferably, a silica gel layer is arranged on the contact surface of the supporting plate and the mouth corner. The silica gel layer can promote the comfort level when patient's lip contacts the backup pad.

Compared with the prior art, the beneficial effects of the utility model are that: the pipette capable of randomly adjusting the liquid suction angle is arranged, so that the accumulated saliva at different parts of the oral cavity can be effectively absorbed, the whole device is simple in structure, and the oral cavity examination or operation is not influenced; the pipette is directly fixed on the dilator without the assistance of other medical personnel.

Drawings

FIG. 1 is a top view of the dental oral dilator for easy adjustment of example 1;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1 at C;

FIG. 5 is a schematic view of a portion of the structure of FIG. 3 at D;

FIG. 6 is a top view of the dental oral dilator for easy adjustment of example 2;

FIG. 7 is a cross-sectional view taken along plane E-E of FIG. 4;

FIG. 8 is a schematic view of a portion of the structure of FIG. 4 at F;

in the figure: 1. an elastic member; 101. an elastic telescopic rod; 102. an inner tube; 103. an outer tube; 104. a spring; 2. a support plate; 3. a pipette; 401. a ball joint; 402. a first spacing collar; 403. a chute; 404. a slide rail; 405. a silica gel layer; 406. a second limit ring; 5. a thread; 6. a rubber tube.

Detailed Description

The technical solutions of the embodiments in this patent will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of this patent. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the patent without making creative efforts, shall fall within the protection scope of the patent.

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the patent and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of this patent, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. It is to be noted that all the figures are exemplary representations. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

The patent is described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Example 1

As shown in fig. 1 to 5, the dental oral dilator convenient to adjust provided by this embodiment includes an elastic member 1 and support plates 2 symmetrically disposed at two sides of the elastic member 1, where the support plates 2 are arc-shaped (as shown in fig. 3 and 5) matching with the shape of a mouth corner, a longitudinal section of the support plate 2 is U-shaped for fitting the inside and outside of the mouth corner, and a pipette 3 made of hard plastic is further provided, the pipette 3 is connected with the support plate 2 through a universal adjusting member, and a top end of the pipette 3 is detachably connected with a liquid pumping tube (not shown in the drawings) of a liquid pumping device. The elastic part 1 is a U-shaped (as shown in fig. 1 and 3) elastic plastic rod, anti-skid grains are arranged on the elastic plastic rod, and the elastic plastic rod is obliquely and upwards arranged relative to the plane of the support plate 2 (as shown in fig. 2). The universal adjusting part comprises a spherical universal joint 401 and a first limiting ring 402 made of hard plastic, the first limiting ring 402 is connected with the supporting plate 2 through the spherical universal joint 401, the pipette 3 is provided with a sliding groove 403 along the axial direction, the first limiting ring 402 is provided with a sliding rail 404 (shown in fig. 4) matched with the sliding groove 403, the pipette 3 passes through the first limiting ring 402 and slides in the first limiting ring 402, the inner wall of the first limiting ring 402 is provided with a silica gel layer 405, and the silica gel layer 405 is in contact with the pipette 3. The top end of the pipette 3 is detachably connected with the liquid pumping pipe of the liquid pumping device through threads 5.

The elastic piece of the oral cavity expander can be kept to be flexible, so that the oral cavity expander can be attached to the mouths of different people, and the supporting plate (the elastic plastic rod) can expand the mouth to a proper size. When the dilator is in use, in order to avoid the elastic elements from interfering with the lips and the face of the patient, the elastic elements are arranged obliquely towards the top of the lips, so that it can be seen from fig. 2 that the elastic elements project obliquely upwards in relation to the plane of the two support plates. The 2 supporting plates are arranged into the arc shape so as to adapt to the shapes of the mouth corners on two sides of the mouth, and the longitudinal section of each supporting plate is arranged into the U shape so as to enable the supporting plate to be firmly attached to the surface of the mouth corner and prevent the supporting plate from sliding to influence the operation in the oral operation. When a patient receives oral examination, salivary glands on two sides of the oral cavity continuously secrete saliva and gradually accumulate in a space between the inner walls on two sides of the oral cavity and the tongue, and the two sides of the dilator are respectively provided with the pipette which can respectively suck the saliva accumulated on two sides of the oral cavity. Because the space of any side of oral cavity is still great, consequently be connected through universal adjusting part between pipette and the backup pad, first spacing collar rotates around spherical universal joint with the pipette together, make the pipette can be at great angle within range adjustment direction, the pipette can also slide along the spout in first spacing collar, make the pipette contact the optional position of oral cavity one side, and under the frictional force effect on silica gel layer, make the pipette slide along the spout and fix a certain position, finally absorb the saliva of accumulating with oral cavity inside within a larger range of one side, and need not hold up the pipette all the time. The pipette does not need to be disassembled and can be detachably connected with the pipette tube of the pipette device through threads, so that the oral cavity dilator can be taken and used at will. The liquid pumping device is a device commonly used in dentistry, is used for providing negative pressure to suck saliva, generally comprises a negative pressure air pump and a liquid storage tank, and can also be in other structural forms (such as a negative pressure suction bag and the like), and any device with a liquid pumping pipe and a liquid pumping function can be used in the patent. The using method of the oral cavity dilator comprises the steps of extruding the elastic piece by hands, attaching and fixing the two supporting plates on the corners of the mouths at two sides, then taking the elastic piece away, recovering the initial state of the elastic piece, gradually expanding the mouths, then connecting the liquid suction pipe of the liquid suction equipment with the liquid suction pipe, starting the liquid suction equipment, and then starting the oral cavity operation. When the saliva at different positions of the oral cavity on the same side needs to be sucked, the angle can be adjusted by only holding the liquid suction pipe or the liquid suction pipe. When the saliva of opposite side oral cavity needs to be drawn, only need pull down the liquid suction pipe, be connected to the liquid suction pipe on the backup pad of opposite side can.

Example 2

As shown in fig. 6 to 8, the present embodiment provides a dental oral cavity expander convenient to adjust, which is different from embodiment 1 in that:

1. as shown in fig. 6 and 7, the elastic members 1 are 2 elastic telescopic rods 101 symmetrically arranged at two ends of the support plate 2, the elastic telescopic rods 101 include an inner tube 102 and an outer tube 103 sleeved outside the inner tube 102, and a spring 104 for extending and contracting the inner tube 102 is arranged inside the outer tube 103;

2. as shown in fig. 8, the universal adjusting member includes a ball joint 401 and a second limiting ring 406, the second limiting ring 406 is connected to the support plate 2 through the ball joint 401, an inner wall of the second limiting ring 406 is provided with an internal thread, an outer wall of the pipette 3 is provided with an external thread matching the internal thread, and the pipette 3 is rotatably inserted into the second limiting ring 406. The top end of the liquid suction pipe 3 is detachably connected with a liquid suction pipe of the liquid suction device through a rubber pipe 6.

This embodiment is the same as embodiment 1 in terms of the functions realized, but is different in terms of the structure for realizing the functions. The 2 symmetrically arranged elastic telescopic rods can also realize that the supporting plates are tightly attached to the mouth corners of the lips, and the internal space enclosed by the 2 symmetrically arranged supporting plates is used for performing operation. The pipette just enables the pipette to keep at fixed position through the limiting displacement of screw in inserting the spacing collar through the screw rotation, when needs readjust pipette angular position, takes off the liquid suction pipe of drawing liquid equipment from the pipette top, holds up the pipette and uses ball joint as the fulcrum rotation to and rotatory liquid suction pipe adjusts along its axial displacement, then again with the liquid suction pipe reconnection of drawing liquid equipment can.

The above embodiments describe the implementation of the present invention in detail, however, the present invention is not limited to the specific details of the above embodiments. Within the scope of the claims and the technical idea of the present invention, various simple modifications and changes can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. The utility model provides a dentistry oral cavity expander convenient to adjust, is in including elastic component and symmetry the backup pad of elastic component both sides, the backup pad is the arc that matches with the mouth angle shape, the vertical section of backup pad is used for laminating mouth angle inside and outside for the U-shaped, its characterized in that still is equipped with the pipette, the pipette with connect through universal adjusting part between the backup pad, realize through universal adjusting part the rotation of pipette and at the axial removal of pipette, the pipette top is connected with the liquid suction pipe of drawing liquid equipment.

2. The dental oral cavity expander convenient to adjust as claimed in claim 1, wherein the universal adjusting member comprises a ball-shaped universal joint and a first limiting ring, the first limiting ring is connected with the support plate through the ball-shaped universal joint, the liquid suction pipe is provided with a sliding groove along an axial direction, the first limiting ring is provided with a sliding rail matched with the sliding groove, the liquid suction pipe penetrates through the first limiting ring and slides in the first limiting ring, the inner wall of the first limiting ring is provided with a silica gel layer, and the silica gel layer is in contact with the liquid suction pipe.

3. The dental oral dilator convenient to adjust according to claim 1, wherein the universal adjusting piece comprises a ball joint and a second limiting ring, the second limiting ring is connected with the supporting plate through the ball joint, the inner wall of the second limiting ring is provided with an internal thread, the outer wall of the pipette is provided with an external thread matched with the internal thread, and the pipette is rotatably inserted into the second limiting ring.

4. The dental oral cavity expander convenient to adjust of claim 1, wherein the elastic member is a U-shaped elastic plastic rod, the elastic plastic rod is provided with anti-slip lines, and the elastic plastic rod is obliquely and upwards arranged relative to the plane of the supporting plate.

5. The dental oral cavity expander convenient to adjust as claimed in claim 1, wherein the elastic members are 2 elastic telescopic rods symmetrically arranged at two ends of the supporting plate, the elastic telescopic rods comprise an inner tube and an outer tube sleeved outside the inner tube, and a spring for extending and retracting the inner tube is arranged inside the outer tube.

6. The dental oral dilator facilitating adjustment of claim 1, wherein the pipette tip is removably connected to the aspiration tube of the aspiration device by a screw thread.

7. The dental oral dilator facilitating adjustment of claim 1, wherein the pipette tip and the aspiration tube of the aspiration device are detachably connected by a rubber tube.

8. The dental oral dilator facilitating adjustment of claim 1, wherein the contact surface of the support plate and the mouth corner is provided with a silicone layer.