Small animal breathing anaesthetic mask

Abstract

The utility model discloses a breathing anaesthetic mask for small animals, which relates to the field of anaesthetic devices for animal experiments and comprises a mask body. One end of the connecting part is connected with the mask body, the other end of the connecting part is connected with an anaesthesia machine pipeline, the mask body comprises a placing block, and the bottom of the placing block is a square block; the anesthesia cavity penetrates through the placing block and is connected with the connecting part; the fixing device is arranged at one end, far away from the connecting part, of the mask main body and can be used for fixing a small animal in the anesthesia cavity; the breathing anaesthetic mask for the small animal can effectively fix the head of the small animal and prevent the mask from falling off, meanwhile, the neck of the small animal is fully exposed, neck operation is facilitated, and the breathing anaesthetic mask has the advantages of being simple in structure, high in applicability, convenient to connect, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to the field of anesthesia devices for animal experiments, in particular to a breathing anesthesia mask for small animals. Background Art

[0002] In modern medical and scientific research, anesthesia masks are a key medical device used to achieve general anesthesia and oxygen supply. There are two main types of human anesthesia masks: oxygen masks and anesthesia masks. These masks are designed to fit the patient's facial contours closely to ensure that they are not easy to fall off during use. Animal anesthesia masks are usually designed based on human masks and adjusted according to the animal's body shape. They are mostly conical in design to better fit the animal's face or neck.

[0003] However, for small experimental animals used in scientific research, such as rats and mice, the existing anesthesia mask design has many problems. Since most of these masks are based on the design of pet clinical masks, the physiological structure and body size differences of small experimental animals are not fully considered. Therefore, in actual applications, problems such as mask detachment, poor stability, difficult neck surgery and tube connection restrictions have occurred. These problems not only affect the efficiency of the experiment, but may also threaten the safety of the animals. Utility Model Content

[0004] The purpose of the utility model is to provide a small animal breathing anesthesia mask, which can effectively fix the head of the small animal to prevent the mask from falling off, while fully exposing the neck of the small animal to facilitate neck surgery, and has the advantages of simple structure, strong applicability, convenient connection, low cost, etc.

[0005] The above-mentioned optimized structure of the utility model is realized by the following technical scheme: a small animal breathing anesthesia mask, comprising a mask body;

[0006] A connecting part, one end of which is connected to the mask body and the other end of which is connected to the anesthetic pipeline, wherein the mask body comprises a placement block, and the bottom of the placement block is a square block;

[0007] An anesthesia cavity is arranged through the placement block and connected to the connection part;

[0008] The fixing device is arranged at one end of the mask body away from the connecting part, and can fix the position of the small animal in the anesthesia chamber.

[0009] In some embodiments, the fixing device includes an arc-shaped hook, both ends of which are respectively fixed to the inner wall of the anesthesia chamber, and the lowest point of the arc-shaped hook is located on the central plane of the anesthesia chamber.

[0010] In some embodiments, the cross-section of the arc-shaped hook is circular.

[0011] In some embodiments, the connecting portion comprises a hollow frustum, one end of which is connected to the mask body;

[0012] At least two convex rings are arranged on the surface of the hollow frustum, and the sizes of the plurality of convex rings gradually increase towards the mask body.

[0013] In some embodiments, the cross-section of the raised ring is a circle with a diameter of 0.6 mm.

[0014] In some embodiments, the distance between two adjacent protruding rings is 1 mm.

[0015] In some embodiments, the top of the placement block is a semi-cylinder.

[0016] In some embodiments, the mask body and the connecting portion are both made of transparent plexiglass.

[0017] In some embodiments, the surface of the connecting portion is provided with anti-slip lines.

[0018] In summary, the utility model has the following beneficial effects:

[0019] The utility model designs the bottom of the mask body to be square, which enhances the stability between the whole and the desktop and prevents shaking during use; the arc-shaped hook design allows the upper incisors of small animals to be stably hung on it, thereby fixing the entire head and avoiding the problem of the mask falling off; the design of the hollow frustum and the convex ring allows the connection of pipelines of different diameters, thereby improving the applicability and convenience of the mask. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a right side view of the utility model;

[0022] Figure 3 It is a left view of the utility model;

[0023] Figure 4 It is the front view of the connecting part of the utility model.

[0024] In the figure: 1. mask body; 11. placement block; 12. anesthesia chamber; 2. connecting part; 21. frustum; 22. convex ring; 3. fixing device; 31. arc hook. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] refer to Figure 1-4 , a small animal breathing anesthesia mask, including a mask body 1, a connecting part 2, and a fixing device 3; the material of the mask body 1 can be organic glass, which is fully transparent and convenient for observation during the experiment, and the total length of the mask body 1 can be 10mm; the mask body 1 includes a placement block 11, the bottom of the placement block 11 can be a square block, so that the mask body 1 can be stably placed on an operating table or a desktop, the top of the placement block 11 can be a semi-cylinder, and the arc-shaped upper top surface design can be conveniently wrapped and fixed with medical tape, and the placement block 11 is penetrated by an anesthesia cavity 12, which can be a hollow cylinder, so that the mouse mouth and nose can be placed inside the mask to ensure the anesthesia effect; the diameter of the anesthesia cavity 12 can be 14mm, and the vertex and bottom points of the central axis of the anesthesia cavity 12 can be 1.2mm away from the upper and lower edges of the mask body 1. This distance can fully expose the mouse neck space while ensuring the stability of the mouse head, so as to facilitate surgical operations on the mouse neck.

[0027] A fixing device 3 is provided in the hollow interior of the front side of the mask body 1, and the fixing device 3 includes an arc-shaped hook 31, and the two ends of the arc-shaped hook 31 are respectively fixed on the inner wall of the anesthesia chamber 12, and the lowest point of the arc-shaped hook 31 is located on the central plane of the anesthesia chamber 12. The arc-shaped hook 31 can be made of stainless steel and can be a homogeneous cylinder as a whole. The diameter of the arc-shaped hook 31 can be 0.45-0.55mm, and the two ends of the arc-shaped hook 31 are embedded in the arc-shaped top of the main body and are on the same horizontal line. The lowest point of the arc-shaped hook can be 7.5-8.5mm away from the lower edge of the arc top of the main body, and the vertical distance between the two ends of the arc-shaped hook 31 and the lowest point can be 0.8-1.1mm. The arc-shaped hook 31 is arranged in the anesthesia chamber 12, about 4-5mm away from the front edge; the upper incisors of the mouse can be fixed by the arc-shaped hook 31 to maintain the stability of the entire head of the mouse, thereby fixing the position of the small animal in the anesthesia chamber 12.

[0028] The back of the mask body 1 is connected with a connecting part 2, which can be made of transparent organic glass to facilitate observation during the experiment; the connecting part 2 can be connected to the anesthesia machine pipeline, and the anesthetic agent is input into the anesthesia chamber 12 through the connecting part 2 to achieve anesthesia for small animals. The connecting part 2 includes a hollow frustum 21, one end of the frustum 21 is connected to the mask body 1, and the other end is connected to the anesthesia machine pipeline; at least two convex rings 22 are provided on the surface of the hollow frustum 21, and the sizes of the multiple convex rings 22 gradually increase in the direction close to the mask body 1, so that it is suitable for the connection of anesthetic pipelines of different sizes. The cross-section of the convex ring 22 can be a circle with a diameter of 0.6mm, and the distance between two adjacent convex rings 22 can be 1mm. The surface of the connecting part 2 can be provided with anti-slip lines to enhance the friction of the connection with the anesthetic pipeline and improve the connection strength.

[0029] The specific working principle is as follows:

[0030] When in use, the placement block 11 is stably placed on the operating table or desktop, the arc top of the placement block 11 is wrapped and fixed on the operating table or desktop with medical tape, the mouth and nose of the mouse are placed in the anesthesia chamber 12, and the upper incisors of the mouse are hung on the arc hook 31 to fix the head of the mouse. The truncated cone 21 is connected to the pipeline of the anesthesia machine, the anesthetic flows through the anesthesia chamber 12, the mouse is anesthetized, and then the subsequent operation is started.

[0031] In summary, the main body of the utility model is made of transparent plexiglass, which is convenient for observing the status of small animals; the square bottom surface of the placement block 11 can make the mask body 1 stably placed on the operating table or desktop; the semi-cylindrical top design of the placement block 11 is convenient for wrapping and fixing with medical tape; the arc-shaped hook 31 can well fix the upper incisors of the small animal and maintain the stability of the small animal's head, while fully exposing the small animal's neck space, facilitating neck surgery.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A small animal breathing anesthesia mask, comprising a mask body (1); The connecting portion (2) has one end connected to the mask body (1) and the other end connected to the anesthetic pipeline, and is characterized in that: The mask body (1) comprises a placement block (11), and the bottom of the placement block (11) is a square block; An anesthesia cavity (12) is disposed through the placement block (11) and is connected to the connection portion (2); A fixing device (3) is arranged at an end of the mask body (1) away from the connecting portion (2), and can fix the position of the small animal in the anesthesia chamber (12).

2. A small animal breathing anesthesia mask according to claim 1, characterized in that: The fixing device (3) comprises an arc-shaped hook (31), both ends of which are respectively fixed to the inner wall of the anesthesia chamber (12), and the lowest point of the arc-shaped hook (31) is located on the central plane of the anesthesia chamber (12).

3. A small animal breathing anesthesia mask according to claim 2, characterized in that: The cross section of the arc-shaped hook (31) is circular.

4. A small animal breathing anesthesia mask according to claim 1, characterized in that: The connecting portion (2) comprises a hollow truncated cone (21), one end of which is connected to the mask body (1); At least two convex rings (22) are arranged on the surface of the hollow truncated cone (21), and the sizes of the plurality of convex rings (22) gradually increase in a direction approaching the mask body (1).

5. A small animal breathing anesthesia mask according to claim 4, characterized in that: The cross section of the convex ring (22) is a circle with a diameter of 0.6 mm.

6. A small animal breathing anesthesia mask according to claim 4, characterized in that: The distance between two adjacent convex rings (22) is 1 mm.

7. A small animal breathing anesthesia mask according to claim 1, characterized in that: The top of the placement block (11) is a semi-cylinder.

8. A small animal breathing anesthesia mask according to claim 1, characterized in that: The mask body (1) and the connecting portion (2) are both made of transparent organic glass.

9. A small animal breathing anesthesia mask according to claim 1, characterized in that: The surface of the connecting portion (2) is provided with anti-slip lines.

Images