Inhalation type anesthesia device for mice

Abstract

The utility model discloses a mouse inhalation type anesthesia device which comprises a support and a cup-shaped head sleeve, the cup-shaped head sleeve is installed on the support, and an air inlet pipe used for being connected with an external anesthesia machine and an exhaust pipe used for being connected with an external waste gas recovery device are arranged on the cup-shaped head sleeve. The dental implant is characterized by further comprising an alveolar rod and a locking mechanism capable of fixing the alveolar rod on the cup-shaped head sleeve, the locking mechanism is arranged on the cup-shaped head sleeve, a guide through hole is formed in the closed end of the cup-shaped head sleeve, the alveolar rod is located in the guide through hole and can move in the guide through hole, the inner end of the alveolar rod is located in the cup-shaped head sleeve, and the outer end of the alveolar rod is located in the cup-shaped head sleeve. And the inner end of the alveolar rod is provided with a vertically through mouse tooth insertion hole. The inhalation type anesthesia device for the mouse can be used for fixing the head of the mouse and then anesthetizing, and is safe to use.

Description

Technical Field

[0001] The utility model relates to the technical field of animal anesthesia, in particular to an inhalation anesthesia device for mice. Background Art

[0002] Anesthesia of mice is a foundation in medical research. Inhalation anesthesia is generally used. Due to its advantages of fast anesthesia speed, easy to control anesthesia depth, and fast awakening, inhalation anesthesia is widely used in medical experiments. When anesthetizing mice, on the one hand, it is necessary to ensure that the mice will not wake up during the experiment, and on the other hand, to avoid the death of the mice.

[0003] At present, a mouse anesthesia mask is often used in medical research to anesthetize mice. For example, a utility model patent with an authorization announcement date of December 11, 2020 and an authorization announcement number of CN212118348U discloses a mouse anesthesia mask, which fixes the mouse head with a transparent mask, connects the required gas through the air inlet pipe, and discharges the remaining gas through the exhaust pipe. Through the cooperation of the vent and the sealing sheet, the function of one-way exhaust is realized. When the anesthetic gas is stopped from entering, the transparent mask is sealed through the sealing sheet to continue to anesthetize the mouse, and the leakage of anesthetic gas can be prevented to affect the health of the operator. Although this mouse anesthesia mask can achieve anesthesia for mice, it does not fix the mice during the anesthesia process. The mice will wake up quickly after leaving the anesthesia environment. The mice that wake up suddenly are easy to flee due to fright, and even bite the experimenters, which is easy to cause the anesthetic gas to escape, causing potential harm to the experimenters. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a mouse inhalation anesthesia device, which can fix the head of the mouse before anesthetizing it and is safe to use.

[0005] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0006] A mouse inhalation anesthesia device comprises a support and a cup-shaped headgear, wherein the cup-shaped headgear is mounted on the support, and is provided with an air inlet pipe for connecting to an external anesthesia machine and an exhaust pipe for connecting to an external waste gas recovery device. The device is characterized in that it also comprises an alveolar rod and a locking mechanism capable of fixing the alveolar rod on the cup-shaped headgear, wherein the locking mechanism is arranged on the cup-shaped headgear, a guide through hole is arranged at the closed end of the cup-shaped headgear, the alveolar rod is located in the guide through hole and can move in the guide through hole, the inner end of the alveolar rod is located inside the cup-shaped headgear, and a mouse tooth insertion hole which passes through from top to bottom is arranged on the inner end of the alveolar rod.

[0007] Pre-connect the intake pipe on the above-mentioned cup-shaped headgear to the anesthesia machine to provide anesthetic gas inside the cup-shaped headgear; the exhaust pipe on the above-mentioned cup-shaped headgear is also pre-connected to the waste gas recovery device. After the anesthesia is completed, the anesthetic gas inside the cup-shaped headgear is pumped into the waste gas recovery device through the exhaust pipe by means of negative pressure suction for collection.

[0008] When anesthetizing a mouse, the experimenter extends the alveolar bar outside the cup-shaped headgear and pries open the mouse's mouth, allowing the mouse to bite the tooth socket jack at the inner end of the alveolar bar. Then, pull the alveolar bar towards the closed end of the cup-shaped headgear and push the mouse's head into the inside of the cup-shaped headgear. Finally, fix the alveolar bar through the locking mechanism. Finally, turn on the anesthesia machine and deliver an appropriate amount of anesthetic gas from the anesthesia machine into the cup-shaped headgear through the intake pipe to anesthetize the mouse.

[0009] In a preferred embodiment, the locking mechanism includes a plug rod and a jack provided on the closed end. The jack extends vertically and communicates with the guiding through hole. The alveolar bar is provided with at least one positioning hole. The plug rod is inserted into the jack and passes through one of the positioning holes. Lift the plug rod to disengage it from the positioning hole, then the alveolar bar can move freely in the horizontal direction. When the plug rod is inserted into the positioning hole on the alveolar bar, the alveolar bar is locked and fixed on the closed end. When the inner end of the alveolar bar and the mouse's head are pushed into the inside of the cup-shaped headgear, insert the plug rod downward along the direction of the strip-shaped jack so that the end of the rod of the plug rod is inserted into the positioning hole on the alveolar bar to fix the alveolar bar in the guiding through hole on the cup-shaped headgear.

[0010] In a further preferred embodiment, the support is provided with an elastic U-shaped clamping opening, and the outer wall of the cup-shaped headgear is located in the elastic U-shaped clamping opening. The cup-shaped headgear is clamped by the elastic U-shaped clamping opening so that the cup-shaped headgear is fixed on the support.

[0011] In a further preferred embodiment, the support is provided with a dovetail groove, and the lower side of the cup-shaped headgear is provided with a dovetail block that matches the dovetail groove. The dovetail block is located in the dovetail groove. Through the design of the dovetail groove and the dovetail block, the cup-shaped headgear can be firmly fixed on the support and can be easily disassembled to ensure that the cup-shaped headgear does not shift easily during the anesthesia process.

[0012] In a further preferred embodiment, the material of the support is PE or PVC.

[0013] In a further preferred embodiment, the material of the cup-shaped headgear is transparent plastic. Using transparent plastic as the material of the cup-shaped headgear results in less coverage of the mouse's head inside the cup-shaped headgear, facilitating observation by the experimenter.

[0014] In a further preferred embodiment, the closed end is provided with an air inlet and an air outlet. One end of the intake pipe is connected to the air inlet, and one end of the exhaust pipe is connected to the air outlet.

[0015] In a preferred embodiment, a square thin plate is provided at the inner end of the alveolar rod, a limiting block is provided at the outer end of the alveolar rod, the widths of the square thin plate and the limiting block are both greater than the aperture of the guiding through hole, and the rat tooth insertion hole is arranged on the square thin plate. By setting the widths of the square thin plate and the limiting block to be greater than the aperture of the guiding through hole, when an experimenter pulls and moves the alveolar rod by hand, both the square thin plate and the limiting block can be snap-fitted with the edge of the guiding through hole to prevent the left and right ends of the alveolar rod from being pulled out of the guiding through hole.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] This mouse inhalation anesthesia device fixes the upper front teeth of the mouse through the rat tooth insertion hole on the alveolar rod, and then fixes the alveolar rod through the locking mechanism, so as to fix the mouse's head and then anesthetize it. Even if the mouse wakes up during the anesthesia process or wakes up after leaving the anesthesia environment, it always ensures that the mouse's head does not move, which can effectively prevent the experimenter from being bitten by the mouse, and at the same time can reduce the influence of the escape of anesthetic gas on the experimenter, and is safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a preferred embodiment of the utility model;

[0019] Figure 2 is a schematic structural diagram of the cup-shaped headgear and the alveolar rod in a preferred embodiment of the utility model;

[0020] Figure 3 is a schematic structural diagram of the alveolar rod in a preferred embodiment of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following specifically describes the utility model in conjunction with the drawings and specific embodiments.

[0022] As Figures 1 - 3 shown, the mouse inhalation anesthesia device in this embodiment includes a support 1, a cup-shaped headgear 2, an alveolar rod 3, and a locking mechanism 4 capable of fixing the alveolar rod 3 on the cup-shaped headgear 2. The cup-shaped headgear 2 is installed on the support 1. An air inlet pipe 21 for connecting an external anesthesia machine and an exhaust pipe 22 for connecting an external waste gas recovery device are provided on the cup-shaped headgear 2. The locking mechanism 4 is arranged on the cup-shaped headgear 2. A guiding through hole 23 is provided at the closed end 24 of the cup-shaped headgear 2. The alveolar rod 3 is located in the guiding through hole 23 and can move in the guiding through hole 23. The inner end of the alveolar rod 3 is inside the cup-shaped headgear 2, and a rat tooth insertion hole 31 penetrating up and down is provided at the inner end of the alveolar rod 3.

[0023] Connect the air inlet pipe 21 on the above-mentioned cup-shaped headgear 2 to the anesthetic machine in advance to provide anesthetic gas inside the cup-shaped headgear 2; the exhaust pipe 22 on the above-mentioned cup-shaped headgear 2 is also pre-connected to the waste gas recovery device. After the anesthesia is completed, the anesthetic gas in the cup-shaped headgear 2 is pumped into the waste gas recovery device through the exhaust pipe 22 by means of negative pressure suction for collection.

[0024] When anesthetizing a mouse, the experimenter extends the alveolar rod 3 outside the cup-shaped headgear 2 and pries open the mouse's mouth, allowing the mouse to bite the mouse tooth socket 31 at the inner end of the alveolar rod 3. Then, pull the alveolar rod 3 towards the closed end 24 of the cup-shaped headgear 2 and push the mouse's head into the cup-shaped headgear 2. Finally, fix the alveolar rod 3 through the locking mechanism 4; finally, turn on the anesthetic machine and deliver an appropriate amount of anesthetic gas from the anesthetic machine into the cup-shaped headgear 2 through the air inlet pipe 21 to anesthetize the mouse.

[0025] The locking mechanism 4 includes a plug rod 41 and a jack 25 provided on the closed end 24. The jack 25 runs vertically, and the jack 25 communicates with the guiding through hole 23. At least one positioning hole 32 is provided on the alveolar rod 3, and the plug rod 41 is located in the jack 25 and passes through one of the positioning holes 32. Lift the plug rod 41 so that the plug rod 41 disengages from the positioning hole 32, then the alveolar rod 3 can move freely in the horizontal direction. When the plug rod 41 is inserted into the positioning hole 32 on the alveolar rod 3, the alveolar rod 3 is locked and fixed to the closed end 24. When the inner end of the alveolar rod 3 and the mouse's head are pushed into the cup-shaped headgear 2, insert the plug rod 41 downward along the direction of the strip-shaped jack 25 so that the end of the rod part of the plug rod 41 is inserted into the positioning hole 32 on the alveolar rod 3 to fix the alveolar rod 3 in the guiding through hole 23 on the cup-shaped headgear 2.

[0026] The support 1 is provided with an elastic U-shaped clamping opening 12, and the outer wall of the cup-shaped headgear 2 is located in the elastic U-shaped clamping opening 12. Clamp the cup-shaped headgear 2 through the elastic U-shaped clamping opening 12 to fix the cup-shaped headgear 2 on the support 1.

[0027] The support 1 is provided with a dovetail groove 11, and the lower side of the cup-shaped headgear 2 is provided with a dovetail block 26 that matches the dovetail groove 11. The dovetail block 26 is located in the dovetail groove 11. Through the design of the dovetail groove 11 and the dovetail block 26, the cup-shaped headgear 2 can be firmly fixed on the support 1 and can be disassembled conveniently to ensure that the cup-shaped headgear 2 will not shift easily during the anesthesia process.

[0028] The material of the support 1 is PE or PVC.

[0029] The material of the cup-shaped headgear 2 is transparent plastic. Using transparent plastic as the material of the cup-shaped headgear 2 results in less coverage of the mouse's head inside the cup-shaped headgear 2, facilitating observation by the experimenter.

[0030] An air inlet 241 and an air outlet 242 are provided on the closed end 24. One end of the air inlet pipe 21 is connected to the air inlet 241, and one end of the exhaust pipe 22 is connected to the air outlet 242.

[0031] A square thin sheet 33 is provided at the inner end of the alveolar rod 3, and a limiting block 34 is provided at the outer end of the alveolar rod 3. The width of the square thin sheet 33 and the width of the limiting block 34 are both greater than the aperture of the guiding through hole 23, and the rat tooth insertion hole 31 is arranged on the square thin sheet 33. By setting the widths of both the square thin sheet 33 and the limiting block 34 to be greater than the aperture of the guiding through hole 23, when the experimenter pulls and moves the alveolar rod 3 by hand, both the square thin sheet 33 and the limiting block 34 can be snap-fitted with the edges of the guiding through hole 23 to prevent the left and right ends of the alveolar rod 3 from being pulled out of the guiding through hole 23.

[0032] In addition, it should be noted that for the specific embodiments described in this specification, the names of their respective parts and the like can be different. Any equivalent or simple changes made according to the structure, features, and principles described in the inventive concept of the utility model patent are included in the protection scope of the utility model patent. Those skilled in the technical field to which the utility model belongs can make various modifications, supplements, or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the utility model or exceed the scope defined by this claim book, they should fall within the protection scope of the utility model.

Claims

1. A mouse inhalation anesthesia device, comprising a support and a cup-shaped headgear. The cup-shaped headgear is installed on the support. An air inlet pipe for connecting an external anesthesia machine and an exhaust pipe for connecting an external waste gas recovery device are provided on the cup-shaped headgear. It is characterized in that: It further includes an alveolar rod and a locking mechanism capable of fixing the alveolar rod on the cup-shaped headgear. The locking mechanism is arranged on the cup-shaped headgear. The closed end of the cup-shaped headgear is provided with a guiding through hole. The alveolar rod is located in the guiding through hole and can move in the guiding through hole. The inner end of the alveolar rod is inside the cup-shaped headgear, and a rat-tooth jack that penetrates up and down is provided on the inner end of the alveolar rod.

2. The mouse inhalation anesthesia device according to claim 1, wherein: The locking mechanism includes an insertion rod and a jack arranged on the closed end. The jack extends vertically, and the jack communicates with the guiding through hole. At least one positioning hole is provided on the alveolar rod, and the insertion rod is located in the jack and passes through one of the positioning holes.

3. The mouse inhalation anesthesia device according to claim 2, characterized in that: An elastic U-shaped clamping opening is provided on the support, and the outer wall of the cup-shaped headgear is located in the elastic U-shaped clamping opening.

4. The mouse inhalation anesthesia device according to claim 3, characterized in that: A dovetail groove is formed on the support, and a dovetail block matching the dovetail groove is provided on the lower side of the cup-shaped headgear. The dovetail block is located in the dovetail groove.

5. The mouse inhalation anesthesia device according to claim 4, wherein: The material of the support is PE or PVC.

6. The mouse inhalation anesthesia device according to claim 4, characterized in that: The material of the cup-shaped headgear is transparent plastic.

7. The mouse inhalation anesthesia device according to claim 2, characterized in that: An air inlet and an air outlet are provided on the closed end. One end of the air inlet pipe is connected to the air inlet, and one end of the exhaust pipe is connected to the air outlet.

8. The mouse inhalation anesthesia device according to claim 1, characterized in that: A square thin plate is provided at the inner end of the alveolar rod, and a limiting block is provided at the outer end of the alveolar rod. The width of the square thin plate and the width of the limiting block are both greater than the aperture of the guiding through hole, and the rat-tooth jack is arranged on the square thin plate.

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