CN215348839U - Mouth gag - Google Patents

Abstract

The utility model discloses a mouth gag, which relates to the technical field of medical instruments and comprises a first forceps body and a second forceps body hinged with the first forceps body, wherein a side edge hole is arranged on the side wall of the first forceps body in a penetrating manner, an arc-shaped clamping piece is arranged on the side wall of the second forceps body, the arc-shaped clamping piece penetrates through the side edge hole and extends outwards, an arc-shaped groove is arranged on the arc-shaped clamping piece, clamping teeth are arranged on the arc-shaped side wall in the arc-shaped groove, a sliding block is connected to the first forceps body in a sliding manner, a limiting block is arranged in the arc-shaped groove and is provided with a limiting part corresponding to the clamping teeth in shape, and the sliding block drives the limiting block to be close to or far away from the clamping teeth so that the limiting part is meshed with or separated from the clamping teeth. The utility model provides a mouth gag, which moves clamping teeth on the outer side wall of an existing arc-shaped clamping piece into an arc-shaped groove on the arc-shaped clamping piece, so that the hands of a user can not directly contact the clamping teeth, and the situation that the clamping teeth on the arc-shaped clamping piece scratch the hands is avoided.

Description

Mouth gag

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a mouth gag.

Background

Mouth openers, also known as mouth openers, are devices for opening the mouth when breathing is difficult or the stomach needs to be washed unconsciously. The mouth gag may be divided into a jaw type mouth gag, a t-shaped mouth gag, a horizontal type mouth gag, and a left-right type mouth gag according to the structure. The most widely used is the jaw-type mouth gag, for example, in the chinese utility model patent with the publication number CN211749497U, it adopts the jaw-type mouth gag structure, and it is engaged with the movable card through the arc card, and is suitable for limiting the opening angle of the mouth gag. However, in this patent, the latch is formed at the edge of the arc-shaped card and faces the holding part of the mouth gag, so that when the mouth gag is used, the fingers of a user are easily scratched by the latch on the arc-shaped card, which affects the use experience.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mouth gag, which moves the latch on the outer side wall of the existing arc-shaped card into the arc-shaped groove on the arc-shaped card, so that the hand of a user can not directly contact the latch, and the hand scratching situation of the latch on the arc-shaped card is avoided.

The technical scheme adopted by the embodiment of the utility model is as follows: the utility model provides an opener, including first pincers body and with first pincers body articulated second pincers body, it is equipped with the side hole to run through on the lateral wall of first pincers body, be equipped with the arc card on the lateral wall of the second pincers body, the arc card passes side hole and outside extension, be equipped with the arc wall on the arc card, be equipped with the latch on the arc lateral wall in the arc wall, be connected with the slider on the first pincers body slidable, the slider is connected with the stopper, the stopper is located in the arc wall, have on the stopper with the spacing portion that the latch shape corresponds, the slider drives the stopper is close to or keeps away from the latch makes spacing portion with the latch meshing or throw off.

In the structure, the first clamp body and the second clamp body are hinged to form a main body of the clamp-type mouth gag, and when the mouth gag is opened or closed, the arc-shaped clamping piece slides relative to the arc-shaped groove. The limiting block arranged in the arc-shaped groove is driven by the sliding block, the limiting part on the limiting block is suitable for being meshed with the clamping teeth on the side wall of one side of the arc-shaped groove, the purpose of limiting the relative movement of the first clamp body and the arc-shaped clamping piece is achieved, and then the mouth gag can keep a specific opening angle for a long time so as to support the upper jaw and the lower jaw of the mouth of a patient. The sliding block is slid to drive the limiting part on the limiting block to be disengaged from the clamping teeth, so that the purpose that the first clamp body and the arc-shaped clamping piece move relatively is achieved. After structure more than adopting, the latch structure that will cut the user's hand easily sets up on the arc wall lateral wall on the arc card for the emergence of latch fish tail hand situation on the arc card has been avoided to the direct contact of user's hand and latch, has improved the safety in utilization of mouth gag, promotes to use and experiences.

In some embodiments, the first caliper body is provided with a sliding groove, and the sliding block is mounted on the first caliper body through the sliding groove in a fitting manner.

In some embodiments, an elastic piece is arranged between the side wall of the sliding groove and the sliding block, and the elastic piece enables the sliding block to have a tendency of moving towards the direction of the latch; through the arrangement, the first clamp body and the arc-shaped clamping sheet can be kept in a locking state in real time.

In some embodiments, the elastic member is a compression spring, the compression spring is embedded in the side wall of the sliding groove, and the compression spring abuts against one end of the sliding block away from the limiting block.

In some embodiments, the elastic member is an extension spring, the extension spring is embedded in the side wall of the sliding groove, and the extension spring abuts against one end of the sliding block close to the limiting block.

In some embodiments, a side of the limiting block, which is far away from the limiting part, is provided with a sliding part with a smooth surface, and when the limiting block is close to or far away from the latch, the sliding part is far away from or close to the other side arc-shaped side wall, which is opposite to the latch, in the arc-shaped groove; when the sliding part is abutted to the side wall on the other side of the arc-shaped groove, the sliding part and the arc-shaped groove can slide relatively to each other, so that the first clamp body and the arc-shaped clamping piece are separated from each other to be in a locking state.

In some embodiments, a first anti-slip groove is formed on the first caliper body, and a second anti-slip groove is formed on the second caliper body; the first anti-slip groove and the second anti-slip groove are suitable for being abutted to the tooth surfaces of the upper jaw and the lower jaw of the mouth of the patient respectively, and the anti-slip grooves are provided with surfaces which are up and down fluctuated so as to increase the friction force of the mouth gag in contact with the tooth surfaces.

In some embodiments, a pull rod is arranged on the sliding block, and the pull rod extends in a direction away from the first clamp body; the pull rod is arranged, so that a user can pull or hook the pull rod by hand to drive the sliding block to move, and the limiting block is separated from the limiting block to limit the arc-shaped clamping piece.

Drawings

FIG. 1 is a schematic structural view of an opener according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the mouth gag with the slider removed according to the embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the connection of the slider in the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a limiting block in the embodiment of the present invention;

fig. 6 is a left side view of the mouth gag in an embodiment of the present invention.

The reference numbers in the figures illustrate:

1. a first caliper body; 11. a first anti-slip groove; 12. a sliding groove; 13. a side hole; 2. a second caliper body; 21. a second anti-slip groove; 3. an arc-shaped card; 31. an arc-shaped slot; 32. clamping teeth; 4. a slider; 41. a pull rod; 5. a limiting block; 51. a limiting part; 52. a sliding part; 6. an elastic member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model aims to provide a mouth gag, which moves the latch 32 on the outer side wall of the existing arc-shaped card 3 into the arc-shaped groove 31 on the arc-shaped card 3, so that the hand of a user can not directly contact the latch 32, and the situation that the latch 32 on the arc-shaped card 3 scratches the hand is avoided.

As shown in fig. 1, a mouth gag is provided, including first pincers body 1 and with first pincers body 1 articulated second pincers body 2, it is equipped with side hole 13 to run through on the lateral wall of first pincers body 1, be equipped with arc card 3 on the lateral wall of second pincers body 2, arc card 3 passes side hole 13 and outwards extends, be equipped with arc groove 31 on the arc card 3, be equipped with latch 32 on the arc lateral wall in the arc groove 31, slidable is connected with slider 4 on the first pincers body 1, slider 4 is connected with stopper 5, stopper 5 is located arc groove 31, stopper 5 is last to have the spacing portion 51 that corresponds with latch 32 shape, slider 4 drives stopper 5 and is close to or keeps away from latch 32, make spacing portion 51 and latch 32 mesh or throw off.

Further, based on fig. 1, the first caliper body 1 and the second caliper body 2 have symmetrical structures and shapes of main portions. The first forceps body 1 and the second forceps body 2 are both made of flat rod-shaped materials, so that the mouth gag forms opposite upper and lower surfaces, the side surface of the first forceps body 1 opposite to the second forceps body 2 is taken as the inner side, and the side surface opposite to the inner side is taken as the outer side of the first forceps body 1 and the second forceps body 2. The first pincers body 1 and the second pincers body 2 both have opposite both ends, and first pincers body 1 middle part is articulated with second pincers body 2 middle part, and articulated department is called the pin joint. One end of the first forceps body 1 and one end of the second forceps body 2 are both bent in the up-down direction, the bent ends are the action ends of the mouth gag, or are called the front ends of the mouth gag, and the opposite rear ends of the mouth gag are the holding parts of the mouth gag, which is a process that is not repeated in detail for the prior art.

Further, as shown in fig. 6, a side hole 13 is formed through the outer side wall of the first pincer body 1, an arc-shaped clamping piece 3 is arranged on the inner side wall of the second pincer body 2, an arc-shaped groove 31 is formed in the arc-shaped clamping piece 3 along the extending direction of the arc-shaped clamping piece, and the circle centers of the arc-shaped clamping piece 3 and the arc-shaped groove 31 are all the hinge points of the first pincer body 1 and the second pincer body 2. The arc-shaped clamping piece 3 extends out of the first clamp body 1 through the side hole 13, when the first clamp body 1 rotates relative to the second clamp body 2, the arc-shaped clamping piece 3 slides relative to the side hole 13, and no steric hindrance or interference is generated between the edge of the arc-shaped clamping piece 3 and the inner wall of the side hole 13.

Furthermore, as shown in fig. 2, the arc-shaped locking piece 3 is located at one side of the hinge point far away from the front end of the opener, the arc-shaped groove 31 has two parallel arc-shaped side walls therein, the side wall near the hinge point is provided with a locking tooth 32, and the locking tooth 32 has a tooth profile which at least has a surface relief structure. Correspondingly, the front end of the limiting block 5 arranged in the arc-shaped groove 31 is provided with a limiting part 51, and the limiting part 51 has a profile structure matched with the latch 32. The limiting block 5 is close to the latch 32, and the limiting portion 51 is engaged with the latch 32, so that the limiting block 5 and the arc-shaped card 3 cannot slide relatively, the purpose of limiting the relative movement of the first forceps body 1 and the arc-shaped card 3 is achieved, and the mouth gag can keep a specific opening angle for a long time so as to support the upper and lower jaws of the mouth of the patient.

In another embodiment, two parallel arc-shaped side walls are arranged in the arc-shaped groove 31, a latch 32 is arranged on the side wall of the arc-shaped groove 31 far away from the hinge point, and the position of the limiting part 51 on the limiting block 5 is changed accordingly.

In another embodiment, the side wall of the first caliper body 1 is not provided with the side hole 13, the arc-shaped clamping piece 3 is arranged on the upper surface or the lower surface of the second caliper body 2, and a gap exists between the arc-shaped clamping piece 3 and the upper surface or the lower surface of the first caliper body 1, so that no steric hindrance or interference is generated between the arc-shaped clamping piece 3 and the first caliper body 1.

Specifically, as shown in fig. 2 and 3, the first caliper body 1 is provided with a slide groove 12, and the slider 4 is fitted into the first caliper body 1 through the slide groove 12.

Further, a sliding groove 12 is provided on the upper surface of the first caliper body 1, and a part of the sliding groove 12 extends downward until it is communicated with the side hole 13, so as to facilitate the connection between the slider 4 and the stopper 5.

Specifically, an elastic member 6 is installed between the side wall of the sliding groove 12 and the slider 4, and the elastic member 6 makes the slider 4 have a tendency to move toward the latch 32.

Further, an elastic member is used to define the position of the slider 4, and the elastic member 6 includes a compression spring, an extension spring, a torsion spring, a rubber band, and the like having an elastic deformation function.

Specifically, as shown in fig. 4, in this embodiment, the elastic element 6 is a compression spring, the spring is embedded in the side wall of the sliding groove 12, and the compression spring abuts against one end of the slider 4 away from the stopper 5.

Furthermore, a groove for placing a compression spring is arranged on the side wall of the end part of the sliding groove 12, one end of the compression spring is abutted against the wall surface of the groove, and the other end of the compression spring is abutted against one end of the limiting block 5. The sliding block 4 drives the limiting block 5 to move, so that the limiting part 51 on the limiting block 5 is meshed with the latch 32 in real time to keep the opening angle of the mouth gag.

Specifically, in another embodiment, the elastic element is an extension spring, the extension spring is embedded and installed in the side wall of the sliding groove 12, and the extension spring abuts against one end of the sliding block 4 close to the limit block 5.

Further, the above structure is not shown in the drawings.

Specifically, as shown in fig. 5, a sliding portion 52 with a smooth surface is disposed on one side of the limiting block 5 away from the limiting portion 51, and when the limiting block 5 is close to or away from the latch 32, the sliding portion 52 is far from or close to the other side arc-shaped sidewall of the arc-shaped groove 31 opposite to the latch 32.

Further, when the limiting block 5 is engaged with the latch 32, a gap exists between the sliding part 52 and the arc-shaped side wall at the other side of the arc-shaped groove 31; when the limiting block 5 and the latch 32 are in a disengaged state, no limiting effect exists between the limiting block 5 and the latch 32, the sliding portion 52 abuts against the arc-shaped side wall, and the limiting block 5 and the arc-shaped card 3 can slide relatively. The first clamp body 1 and the arc-shaped clamping piece 3 are separated from a limited state, and the opening angle of the mouth gag can be freely adjusted between the first clamp body 1 and the second clamp body 2.

Specifically, the first caliper body 1 is provided with a first anti-slip groove 11, and the second caliper body 2 is provided with a second anti-slip groove 21.

Further, as shown in fig. 6, a first anti-slip groove 11 is provided at the front end of the first caliper body 1, and a second anti-slip groove 21 is provided at the front end of the second caliper body 2. First anti-skidding groove 11 and second anti-skidding groove 21 structural symmetry, two anti-skidding groove middle parts all have coarse planes, are provided with the extension in the slope in opposite directions in this planar both sides to this forms the cross-section and is the trapezoidal structure that falls, and patient's tooth face is arranged in this trapezoidal structure that falls.

Further, the patient's dental surface has a front surface and lateral sides that are positioned on the inside and outside of the teeth, and extensions on the anti-slip grooves are used to limit the lateral position of the teeth.

Specifically, the slide block 4 is provided with a pull rod 41, and the pull rod 41 extends in a direction away from the first caliper body 1.

As shown in fig. 4 and 6, the pull rod 41 is an arc structure extending away from the first forceps body 1, so that the user can hold the pull rod 41 with his hand.

The working principle is that a user holds the holding part of the mouth gag and hooks the pull rod 41 with fingers, and the pull rod 41 drives the sliding block 4 to move so that the limiting part 51 is disengaged from the latch 32. The front end of the mouth gag is arranged in the mouth of a patient, the first anti-slip groove 11 and the second anti-slip groove 21 are respectively abutted against the upper jaw and the lower jaw of the mouth of the patient, and the pull rod 41 is loosened after the mouth gag is adjusted to be opened to a proper opening angle. Under the action of the elastic piece, the sliding block 4 slides in the opposite direction, the limiting part 51 is meshed with the latch 32 to limit the arc-shaped card 3, and the opening angle of the first clamp body 1 and the second clamp body 2 can be kept unchanged for a long time.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims (8)

1. The utility model provides an opener, including first pincers body (1) and with second pincers body (2) that first pincers body (1) articulated, its characterized in that: a side hole (13) is arranged on the side wall of the first clamp body (1) in a penetrating way, an arc-shaped clamping piece (3) is arranged on the side wall of the second clamp body (2), the arc-shaped clamping piece (3) penetrates through the side edge hole (13) and extends outwards, an arc-shaped groove (31) is arranged on the arc-shaped clamping piece (3), the arc side wall in the arc groove (31) is provided with a latch (32), the first clamp body (1) is connected with a slide block (4) in a sliding way, the sliding block (4) is connected with a limiting block (5), the limiting block (5) is positioned in the arc-shaped groove (31), the limiting block (5) is provided with a limiting part (51) corresponding to the latch (32) in shape, the sliding block (4) drives the limiting block (5) to be close to or far away from the clamping teeth (32), so that the limiting part (51) is meshed with or separated from the clamping teeth (32).

2. The mouth gag of claim 1, characterized by: the first pliers body (1) is provided with a sliding groove (12), and the sliding block (4) is installed on the first pliers body (1) in an embedded mode through the sliding groove (12).

3. The mouth gag of claim 2, characterized by: an elastic piece (6) is installed between the side wall of the sliding groove (12) and the sliding block (4), and the sliding block (4) has a trend of moving towards the direction of the latch (32) due to the elastic piece (6).

4. The mouth gag of claim 3, characterized by: the elastic piece (6) is a compression spring, the compression spring is embedded in the side wall of the sliding groove (12), and the compression spring is abutted to one end, far away from the limiting block (5), of the sliding block (4).

5. The mouth gag of claim 3, characterized by: the elastic piece (6) is an extension spring, the extension spring is embedded in the side wall of the sliding groove (12), and the extension spring abuts against one end, close to the limiting block (5), of the sliding block (4).

6. The mouth gag of claim 1, characterized by: keep away from on stopper (5) one side of spacing portion (51) has smooth surface's portion of sliding (52), when stopper (5) are close to or keep away from latch (32), portion of sliding (52) are kept away from or are close to in arc groove (31) relatively the opposite side arc lateral wall of latch (32).

7. The mouth gag of claim 1, characterized by: the first pliers body (1) is provided with a first anti-skidding groove (11), and the second pliers body (2) is provided with a second anti-skidding groove (21).

8. The mouth gag of claim 1, characterized by: and a pull rod (41) is arranged on the sliding block (4), and the pull rod (41) extends in the direction away from the first clamp body (1).

Images