CN219516683U

CN219516683U - Rodent oral cavity mouth gag and experimental facilities

Info

Publication number: CN219516683U
Application number: CN202222822435.7U
Authority: CN
Inventors: 刘毅; 徐心怡; 韩旭; 陈琳
Original assignee: Shenzhen Research Institute Of Shandong University
Current assignee: Shenzhen Research Institute Of Shandong University
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-08-15
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to the technical field of medical equipment, in particular to a rodent oral cavity opener and experimental equipment. The oral cavity mouth gag includes: the first rod piece, the second rod piece and the propping-open part; the first rod piece and the second rod piece are U-shaped, the U-shaped opening of the first rod piece and the U-shaped opening of the second rod piece are arranged oppositely, and the opening part is arranged at the joint of the first rod piece and the second rod piece; the opening part is a spiral spring, the first end of the spiral spring is connected with the first rod piece, the second end of the spiral spring is connected with the second rod piece, and a clamping part for clamping incisors of the upper jaw and the lower jaw of the rodent is arranged between the first rod piece and the second rod piece. The oral cavity mouth gag solves the problems that the existing mouth gag is complex in operation and consumes experiment time.

Description

Rodent oral cavity mouth gag and experimental facilities

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a rodent oral cavity opener and experimental equipment.

Background

The disclosure of this background section is only intended to increase the understanding of the general background of the utility model and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.

Rodents (such as rats, mice, etc.) are the most commonly used species in basic experiments of clinical medicine, biology, etc., and when related intraoral operations are performed after anesthesia, an oral cavity opener is required to open the upper and lower jaws of the rodents to expose intraoral structures for subsequent experimental operations.

At present, the mouth opening device for rodents has a plurality of problems, firstly, no relatively mature commercial finished product exists, and experimenters mainly depend on surgical instruments (such as forceps, a drag hook and the like) or self-made opening devices to forcibly open the upper jaw and the lower jaw, so that the stability is not enough; secondly, many people are needed to assist, the required opening degree is difficult to maintain for a long time, the opening size is difficult to customize according to different animals, and perfect exposure of the inside of the oral cavity of a rodent is difficult to meet.

In addition, the utility model patent with publication number CN101396306 discloses a lip mouth gag for laboratory animals of rats and rabbits, wherein the two ends of the upper jaw support and the lower jaw support are provided with adjusting bolts, and the upper jaw support or the lower jaw support matched with the bolts are provided with threads. When the mouth gag is used, the mouth gag needs to be put into an animal oral cavity firstly and then vertically rotated to open the oral cavity, the operation space is small, the rotation is inconvenient, and if the size of the opening is required to be changed, fine adjustment is required again, so that the experimental operation difficulty is increased, and more experimental time is consumed.

Disclosure of Invention

Aiming at the defects existing in the prior art, the embodiment of the utility model aims to provide a rodent oral cavity opener so as to solve the problems that the existing opener is complex in operation and consumes experimental time.

In order to achieve the above object, the embodiment of the present utility model provides the following technical solutions:

a rodent oral cavity opener comprising: the first rod piece, the second rod piece and the propping-open part; the first rod piece and the second rod piece are U-shaped, the U-shaped opening of the first rod piece and the U-shaped opening of the second rod piece are arranged oppositely, and the opening part is arranged at the joint of the first rod piece and the second rod piece; the opening part is a spiral spring, the first end of the spiral spring is connected with the first rod piece, the second end of the spiral spring is connected with the second rod piece, and a clamping part for clamping incisors of the upper jaw and the lower jaw of the rodent is arranged between the first rod piece and the second rod piece.

In another preferred embodiment of the present utility model, the clamping portion is a trapezoidal opening, the trapezoidal opening of the clamping portion of the first rod member and the U-shaped opening of the first rod member are disposed opposite, and the trapezoidal opening of the clamping portion of the second rod member and the U-shaped opening of the second rod member are disposed opposite.

In another preferred embodiment of the present utility model, the clamping portion is sleeved with a protective sleeve.

In another preferred embodiment of the present utility model, the saliva suction unit further comprises a saliva suction tube provided on the second rod member and a connector communicating with the saliva suction tube.

In another preferred embodiment of the present utility model, a filter is disposed at an end of the saliva suction tube away from the second rod.

In another preferred embodiment of the utility model, the saliva suction tube is made of plastic, the tube body is a transparent hose, and copper wires are arranged in the tube body.

In another preferred embodiment of the present utility model, the lighting unit further comprises a lighting lamp and a lamp post, and the lamp post is connected to the first rod member.

In another preferred embodiment of the present utility model, the lamp post is a universal tube.

In another preferred embodiment of the present utility model, the first rod and the second rod are made of metal.

The embodiment of the utility model also provides experimental equipment, which comprises the rodent oral cavity opener.

One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:

1. when the mouth cavity mouth gag is used, the two rod pieces are connected through the double-sided spiral springs, the end parts of the two rod pieces are held to be extruded to opposite sides according to the size degree of the mouth cavity of a rodent, so that the first plate piece and the second plate piece are in a V shape, the clamping parts of the two plate pieces are abutted against the upper jaw incisors and the lower jaw incisors of the mouth cavity of the rodent and fixed, the stability of the mouth gag is improved, the size of the mouth opening can be fixed for a long time, the mouth cavity of the animal can be completely exposed, and a plurality of people are not required to assist a single person to operate, the experimental operation difficulty is reduced, the working efficiency is improved, and the experimental time is saved.

2. According to the mouth gag, the trapezoid clamping part opposite to the rod piece is arranged, so that the mouth gag can be firmly clamped at the upper and lower jaw incisors of the mouth cavity of a rodent, and the protective sleeve is sleeved on the outer side of the clamping part, so that the mouth gag is prevented from damaging the teeth of the animal, and the safety of experiments is ensured.

3. The two rod pieces of the mouth gag are respectively provided with the bendable illumination unit and the bendable saliva suction unit, so that the additional functions of the mouth gag are expanded, the mouth gag provided by the utility model is an efficient, light and multifunctional mouth gag, can effectively prevent cross infection, better provide the visual field of an operation area, assist the smooth development of related experiments, be beneficial to improving the experimental efficiency of rodent experiments by scientific researchers, have low cost and are suitable for popularization and use.

Additional aspects of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic view of a rodent oral cavity opener provided by an embodiment of the present utility model;

in the figure: 1. a first rod member; 11. a clamping part; 12. a protective sleeve; 2. a second rod member; 3. a spreader; 41. a filter; 42. a saliva suction tube; 43. a connector; 51. a lighting lamp; 52. a lamp post;

the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustrations are used for illustration only.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. Term interpretation section: the terms "mounted," "connected," "secured," and the like in the present utility model are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the terms "mechanically coupled" and "directly coupled" may be used interchangeably to refer to either a mechanical coupling, an indirect coupling via an intermediary, an internal coupling of two elements, or an interaction of two elements, as would be understood by one of ordinary skill in the art, and the terms are to be understood in the specific sense of the present utility model as appropriate.

As shown in fig. 1, in one embodiment of the present utility model there is described a rodent oral cavity opener comprising: the first rod piece 1, the second rod piece 2 and the opening part 3; the first rod piece 1 and the second rod piece 2 are U-shaped, the U-shaped opening of the first rod piece is opposite to the U-shaped opening of the second rod piece, and the opening part 3 is arranged at the joint of the first rod piece 1 and the second rod piece 2; the opening part 3 is a spiral spring, a first end of the spiral spring is connected with the first rod piece 1, a second end of the spiral spring is connected with the second rod piece 2, and a clamping part 11 for clamping incisors of the upper jaw and the lower jaw of the rodent is arranged between the first rod piece 1 and the second rod piece 2. The first rod piece 1 and the second rod piece 2 are made of metal materials, the first rod piece is located on the upper side of the drawing 1, the opening is downward, the second rod piece is located on the lower side of the drawing 1, the opening is upward, two sides of the first rod piece and the second rod piece are connected through a spiral spring, and the spiral spring selects proper diameters and turns according to the opening of an oral cavity of a rodent.

The oral cavity mouth gag provided by the utility model follows the design concept suitable for the oral cavity structure of a rodent, the two rod pieces are connected through the double-sided spiral springs, when the oral cavity mouth gag is used, the ends of the two rod pieces are held to be extruded towards opposite sides according to the size degree of the oral cavity of the rodent, so that the first plate and the second plate are in a V shape, the clamping parts of the two plate are abutted against the incisors of the upper jaw and the lower jaw of the oral cavity of the rodent and fixed, the stability of the mouth gag is improved, the size of the mouth gag can be fixed for a long time, the oral cavity of the rodent can be completely exposed, and the mouth gag can be operated by a plurality of people without assistance, thus the experimental operation difficulty is reduced, the working efficiency is improved, and the experimental time is saved.

The mouth gag can damage the teeth of animals when the mouth gag is opened, and the safety is not enough. In this embodiment, the clamping portion 11 is configured as a trapezoidal opening, the trapezoidal opening of the clamping portion 11 of the first rod member 1 and the U-shaped opening of the first rod member 1 are disposed opposite to each other, and the trapezoidal opening of the clamping portion 11 of the second rod member 2 and the U-shaped opening of the second rod member 2 are disposed opposite to each other. The clamping part 11 is sleeved with a protective sleeve 12, and the protective sleeve is made of rubber. Through setting up with the reverse trapezoidal joint portion of member, can make the firm joint of mouth gag in the upper and lower jaw incisors department in rodent oral cavity, through cup jointing the protective sheath in joint portion outside, avoid mouth gag to produce the damage to animal tooth, guaranteed the security of experiment.

The existing mouth gag can not suck saliva, saliva causes the pollution of an operation area, the risk of infection is increased, and the experiment can possibly fail. Based on this, the mouth gag of the present embodiment is further provided with a saliva suction unit including a saliva suction tube 42 provided on the second lever 2 and a connector 43 communicating with the saliva suction tube 42. The end of the saliva suction tube 42 remote from the second rod member 2 is provided with a filter 41. The saliva suction pipe 42 is made of plastic, the pipe body is a transparent hose, and copper wires are arranged in the pipe body.

As shown in fig. 1, the main metal rod at the left side of the second rod is connected with a bendable saliva suction pipe and a saliva suction pipe connector, the saliva suction pipe head is provided with a filter (the size can be adjusted according to actual needs), the connector is connected with the aspirator host machine to suck saliva, so that saliva is conveniently discharged, and the saliva suction pipe and the connector are in a shape in the saliva suction pipe through a hollow pipeline of the main metal rod. The bendable saliva suction pipe is made of plastic, the outside is a transparent hose, a copper wire is arranged inside the plastic, the plastic and bending are convenient, the saliva suction angle can be adjusted, and the use is convenient.

During experiments, the light in the oral cavity is insufficient, so that the field of view of an experimenter is limited easily, and the operation difficulty is increased. Based on this, the mouth gag of the present embodiment further includes a lighting unit including a lighting lamp 51 and a lamp post 52, the lamp post 52 being connected to the first lever 1.

As shown in fig. 1, the main metal rod on the right side of the first rod piece is connected with a bendable telescopic lamp post, and the head of the lamp post is provided with an illuminating lamp. The bendable telescopic lamp post adopts a metal shaping hose with freely adjustable positions and angles, namely a common metal flexible pipe, or a common universal pipe, can be bent into a certain shape in a three-dimensional space at will and can keep the shape, and wires with certain sizes can pass through the pipe holes to realize the bendable function. The laboratory adjusts the light according to illumination position demand, convenient to use.

The application method of the rodent oral cavity opener comprises the following steps:

when the oral cavity mouth gag is used, according to the size of an oral cavity opening of a rodent, the first rod piece and the second rod piece are firstly held and forcefully compressed towards the opposite side direction, and the upper jaw incisors and the lower jaw incisors of the rodent oral cavity are respectively contacted and fixed by selecting proper compression deformation through the resilience force of the double-side coil springs; the upper and lower jaw incisors are fixed on the rubber sleeves of the clamping parts at the upper and lower central parts of the two rod pieces in a contact way. The lamp post is adjusted according to the requirement by opening the illuminating lamp, so that the illuminating lamp can illuminate the part to be illuminated. Then, open the saliva suction tube, adjust saliva suction angle and direction as required, rethread saliva suction tube connector is connected in aspirator host computer, is ready for saliva discharge channel, and the suitable position in animal oral cavity is inhaled saliva with the saliva suction tube. After the preparation, the operation of the related experiment is started.

Based on the above exhaust gas opener, the embodiment of the present utility model further provides an experimental apparatus provided with the opener according to the above embodiment, and the technical effects of the experimental apparatus using the opener are please refer to the above embodiment because the above opener has the technical effects.

While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.

Claims

1. A rodent oral cavity opener comprising: the first rod piece, the second rod piece and the propping-open part;

the first rod piece and the second rod piece are U-shaped, the U-shaped opening of the first rod piece and the U-shaped opening of the second rod piece are arranged oppositely, and the opening part is arranged at the joint of the first rod piece and the second rod piece;

the opening part is a spiral spring, the first end of the spiral spring is connected with the first rod piece, the second end of the spiral spring is connected with the second rod piece, and a clamping part for clamping incisors of the upper jaw and the lower jaw of the rodent is arranged between the first rod piece and the second rod piece.

2. The rodent oral cavity opener of claim 1 wherein the snap-fit portion is a trapezoidal opening, the trapezoidal opening of the snap-fit portion of the first rod being disposed opposite the first rod U-shaped opening, the trapezoidal opening of the snap-fit portion of the second rod being disposed opposite the second rod U-shaped opening.

3. The rodent oral cavity opener of claim 2 wherein the snap fit portion is sleeved with a protective sleeve.

4. The rodent oral cavity opener of claim 1 further comprising a saliva suction unit comprising a saliva suction tube disposed on the second shaft and a connector in communication with the saliva suction tube.

5. The rodent oral cavity opener of claim 4 wherein the end of the saliva suction tube remote from the second stem is provided with a filter.

6. The rodent oral cavity opener of claim 4 wherein the saliva suction tube is of plastic material and the tube body is a transparent hose with copper wires disposed inside the tube body.

7. The rodent oral cavity opener of claim 1 further comprising a lighting unit comprising a light and a light post, the light post being connected to the first rod.

8. The rodent oral cavity opener of claim 7 wherein the light pole is a universal tube.

9. The rodent oral cavity opener of claim 1 wherein the first rod and the second rod are metallic.

10. An experimental device comprising a rodent oral cavity opener according to any one of claims 1-9.