Mouse anesthesia device

Abstract

The utility model discloses a mouse anesthesia device which comprises a mask cylinder, a mask cover, a mask cover, a mask cover, a mask cover, a mask cover, a mask cover and a mask cover which are sequentially arranged from front to back, and the mask cover is a conical cylinder body and is provided with a covering space above the neck of a mouse; the medicine feeding cylinder is a cylindrical cylinder body, the middle part of the cylinder body of the medicine feeding cylinder is connected with a medicine feeding head through a medicine feeding pipe, and a medicine feeding valve is arranged at the front part of the cylinder body of the medicine feeding cylinder; an air inlet valve is arranged in the middle of a cylinder body of the air inlet cylinder, and a compression fan is arranged on the rear portion of the cylinder body of the air inlet cylinder. The mouse can be fixed, residual anesthetic is fully fed into the mouse mouth and nose rear isolation mask cylinder through air after anesthesia is completed, the anesthesia effect is improved, volatilization and seepage of the anesthetic are reduced, operation is easy, carrying is convenient, and environmental pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to animal experiment auxiliary anesthetizing equipment technical field, more specifically, the utility model relates to a mouse anesthetizing device. BACKGROUND

[0002] Mouse anesthesia is an important step of animal experiment, on the one hand, guarantee that mouse does not wake up in the experimental process, the other hand, guarantee mouse does not die. At present, the anesthetic means widely used in animal experiment is inhalation anesthesia, can select isoflurane inhalation anesthesia, ether inhalation anesthesia etc., has the advantages such as quick effect, quick recovery, safety. The utility model patent with application No. 202120227894.3 discloses a mouse anesthesia ventilation mask, which removes the excess anesthetic gas into recovery through the setting negative pressure aspirator, but in order to protect the smooth breathing of mouse, still need to guarantee that the anesthetic gas in the mask is in the normal concentration range, then when the mask is removed, since the inflatable cuff cap is open, still part of the anesthetic gas will escape from the open end. From the actual operation, how to improve the utilization rate of mouse inhalation anesthetic gas, make the anesthetic gas sent into the mouse mouth and nose as much as possible, avoid the test personnel inhale too much leaked anesthetic gas, is the technical problem that the present application urgently solves. SUMMARY

[0003] The utility model provides a mouse anesthetizing device, it can fix mouse, after anesthesia, the remaining anesthetic is sent into the mouse mouth and nose by air after the isolation mask cylinder, improve the anesthetic effect, reduce the volatilization of anesthetic and exude, simple operation, convenient to carry, reduce environmental pollution.

[0004] It suffocates by inhaling too much anesthetic gas.

[0005] In order to realize according to the utility model these purposes and other advantages, provide a mouse anesthetizing device, including by front to rear setting successively:

[0006] The mask cylinder is a conical cylinder, the mask cylinder has a cover space above the mouse neck;

[0007] The medicine inlet cylinder is a cylindrical cylinder, the middle part of the cylinder body of the medicine inlet cylinder is connected with the medicine inlet head through the medicine inlet pipe, and the front part of the cylinder body of the medicine inlet cylinder is provided with a medicine inlet valve;

[0008] The air inlet cylinder is provided with an air inlet valve in the middle part of the cylinder body, and a compressed air fan is arranged at the rear part of the cylinder body.

[0009] Preferably, a transition cylinder is arranged between the air inlet cylinder and the medicine inlet cylinder, the transition cylinder is in the structure of a circular truncated cone, and the outer diameter size of the connection part of the transition cylinder and the air inlet cylinder is smaller than the outer diameter size of the connection part of the transition cylinder and the medicine inlet cylinder.

[0010] Preferably, the front end of the mask cylinder is provided with a rubber part.

[0011] Preferably, the medicine inlet valve comprises a first valve body and a first valve rod, the first valve body is provided with a first valve rod mounting space in the up-down direction and an annular passage in the front-rear direction, the upper end of the rod body of the first valve rod extends out of the first valve rod mounting space to form a handle, the upper and lower parts of the rod body of the first valve rod are mounted in the first valve rod mounting space through bearings, and a sealing ring is further arranged between the upper and lower parts of the rod body of the first valve rod and the first valve body mounting space.

[0012] Preferably, the air inlet valve comprises a second valve body and a second valve rod, the second valve body is provided with a second valve rod mounting space in the front-rear direction, the second valve rod mounting space is provided with a front radial extension section and a rear radial extension section, the front radial extension section and the rear radial extension section are both provided with an axial through hole and a circumferential through hole, the rod body of the second valve rod is arranged in the axial through hole of the front radial extension section and the rear radial extension section, the middle part of the rod body of the second valve rod is provided with a circular check ring, the outer diameter of the circular check ring is smaller than the outer diameter of the front radial extension section and the rear radial extension section and larger than the outer diameter of the circumferential through hole, a return spring is further arranged between the circular check ring and the front radial extension section, the elastic force of the return spring makes the circular check ring close the circumferential through hole of the rear radial extension section, and the pressure of the compression fan makes the second valve body overcome the elastic force of the return spring, so that the circumferential through holes of the rear radial extension section and the front radial extension section form an air passage.

[0013] Preferably, the outer periphery of the rear radial extension section is further provided with an annular stopper in front, the circular check ring comprises a front check ring part and a rear check ring part, and the outer diameter of the annular stopper is larger than the outer diameter of the front check ring part, the outer diameter of the rear check ring part and the outer diameter of the circumferential through hole.

[0014] The utility model at least has following beneficial effects:

[0015] Firstly, the mask cylinder can effectively fix the head and neck of the mouse, the medicine inlet cylinder can send in the anesthetic, the isolation between the mask cylinder and the medicine inlet cylinder is formed through the medicine inlet valve, the air inlet cylinder can send in the air, the isolation between the air inlet cylinder and the medicine inlet cylinder is formed through the air inlet valve, after anesthesia, the remaining anesthetic is fully sent into the mouth and nose of the mouse through the air, then the mask cylinder is isolated, the anesthesia effect is improved, the volatilization and exudation of the anesthetic are reduced, the operation is simple, the utility model is convenient to carry and reduces environmental pollution.

[0016] Second, the mask cylinder is conical, which is convenient for the head and neck of the mouse to be sent into the cover space and pressed to improve the fixing effect and avoid the mouse from escaping. The anesthetic is sent into the medicine feeding tube by the medicine feeding head, and the anesthetic is fully dispersed in the internal space of the medicine feeding cylinder. The cross section of the medicine feeding cylinder is circular, which is convenient for setting the medicine feeding valve. The medicine feeding valve can select a conventional mechanical valve to form the isolation of the mask cylinder and the medicine feeding cylinder to prevent the anesthetic from escaping from the mask cylinder. When needed, the air inlet valve is opened, and the compressed air blower blows air into the air inlet cylinder. On the one hand, it supplies air for the mouse to breathe and avoids suffocation. On the other hand, when the anesthetic delivery is completed, the air supply forms a certain airflow to quickly send the anesthetic into the mouse's mouth and nose, further improving the anesthetic effect. When not needed, the air inlet valve is closed. The air inlet valve can select a conventional mechanical valve to form the isolation of the mask cylinder and the air inlet cylinder.

[0017] Third, the setting of the transition cylinder increases the dispersion area of the airflow, so that the airflow sends the anesthetic into the mask cylinder in the full cross section. The rubber part improves the sealing performance of the device and the part below the mouse's neck. In order to simplify the structure and operation difficulty of the valve, the medicine feeding valve is preferably in the form of a circular valve body closing a ring-shaped passage. The first valve body is set as a cross-shaped through cavity, that is, the first valve rod installation space is in the ring-shaped passage. The relative rotation of the first valve rod is realized by the bearing structure in the first valve rod installation space, and the sealing performance is realized by the sealing ring. Rotating the handle makes the first valve rod rotate to close or open the ring-shaped passage. The structure is simple and the operation is simple.

[0018] Fourth, in order to realize that the airflow fully sends the anesthetic into the mask cylinder, the air inlet valve is preferably in a one-way non-return structure. The front and rear radial extension sections are both face-shaped plate bodies that are inscribed in the second valve rod installation space. The axial through hole is used for the forward and backward movement of the second valve rod, and the circumferential through hole is used for airflow flow. The second valve rod is provided with a circular check ring. The size of the circular check ring enables the circular check ring to close the rear radial extension section (and the circumferential through hole of the rear radial extension section) from the outer periphery under the pressure of the return spring. The return spring is a compression spring that is compressed under the action of air pressure. The gap between the circular check ring and the front radial extension section enables the airflow to enter the medicine feeding cylinder through the circumferential through hole of the front radial extension section. When subjected to external pressure, the circular check ring naturally elongates to close the rear radial extension section. When in use, the compressed air blower provides air, and at the same time, the air pressure realizes the pushing effect of the circular check ring to form a gap between the circular check ring and the rear radial extension section, so that the air enters the medicine feeding cylinder through the circumferential through hole of the front radial extension section and the gap of the rear radial extension section. The annular stop block is a part of the rear radial extension section that extends forward along the axial direction, so that the rear radial extension section forms a stepped structure and the circular check ring cooperates to form a stepped structure, further forming a zigzag path to improve the one-way flow effect of the airflow and avoid the reverse escape of the anesthetic.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of one technical solution of this utility model;

[0021] Figure 2 For the present utility model Figure 1 Internal structure diagram;

[0022] Figure 3 For the present utility model Figure 2 An enlarged schematic diagram of the drug inlet valve;

[0023] Figure 4 For the present utility model Figure 2 An enlarged schematic diagram of the intake valve structure;

[0024] Figure 5 This is a schematic diagram illustrating the structural principle of the drug inlet valve of this utility model;

[0025] Figure 6 This is a schematic diagram illustrating the structural principle of the intake valve of this utility model. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0027] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0028] It should be noted that the experimental methods described in the following embodiments are conventional methods, and the reagents and materials are commercially available unless otherwise specified. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The orientation or positional relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] As shown in Figure 1 The present application provides a mouse anesthesia device, comprising, from front to back, a face mask cylinder 1, a medicine feeding cylinder 2 and an air feeding cylinder 3.

[0030] The face mask cylinder 1 is a conical cylinder, and has a covering space above the neck of the mouse.

[0031] The medicine feeding cylinder 2 is a cylindrical cylinder, and a medicine feeding head 21 is connected to the middle part of the cylinder of the medicine feeding cylinder 2 through a medicine feeding pipe, and a medicine feeding valve 22 is arranged at the front part of the cylinder of the medicine feeding cylinder 2.

[0032] The air feeding cylinder 3 is provided with an air feeding valve 31 at the middle part of the cylinder, and a compressed air fan 32 is arranged at the rear part of the cylinder.

[0033] In the above technical solution, the face mask cylinder 1 can effectively fix the head and neck of the mouse, the medicine feeding cylinder 2 can feed the anesthetic, the face mask cylinder 1 and the medicine feeding cylinder 2 are isolated by the medicine feeding valve 22, the air feeding cylinder 3 feeds air, the air feeding cylinder 3 and the medicine feeding cylinder 2 are isolated by the air feeding valve 31, and after anesthesia, the remaining anesthetic is fully fed into the mouse's mouth and nose by air, and then the face mask cylinder is isolated, thereby improving the anesthesia effect, reducing the volatilization and excretion of the anesthetic, and simplifying the operation, facilitating carrying, and reducing environmental pollution.

[0034] The mask cylinder 1 is conical, which is convenient for the mouse head and neck to be sent into the cover space and to be pressed, so as to improve the fixing effect and avoid the mouse from escaping. The anesthetic is sent into the medicine feeding cylinder 2 by the medicine feeding head 21, and the anesthetic is fully dispersed in the internal space of the medicine feeding cylinder 2. The cross section of the medicine feeding cylinder 2 is circular, which is convenient for setting the medicine feeding valve 22. The medicine feeding valve 22 can select a conventional mechanical valve, which forms the isolation of the mask cylinder 1 and the medicine feeding cylinder 2, prevents the anesthetic from escaping from the mask cylinder 1, and opens the air inlet valve 31 when needed. The compressed air blower 32 blows air into the air inlet cylinder 3, which is used for the mouse breathing and avoiding the mouse from suffocating. On the other hand, when the anesthetic is delivered, the air supply forms a certain airflow to quickly send the anesthetic into the mouse mouth and nose, which further improves the anesthetic effect. The air inlet valve 31 is closed when not needed. The air inlet valve 31 can select a conventional mechanical valve to form the isolation of the mask cylinder 1 and the air inlet cylinder 3.

[0035] In another technical solution, a transition cylinder is arranged between the air inlet cylinder 3 and the medicine feeding cylinder 2. The transition cylinder is a circular truncated cone structure. The outer diameter size of the connection between the transition cylinder and the air inlet cylinder 3 is smaller than the outer diameter size of the connection between the transition cylinder and the medicine feeding cylinder 2. The arrangement of the transition cylinder increases the dispersion area of the airflow, so that the airflow full section sends the anesthetic into the mask cylinder 1. In another technical solution, the front end of the mask cylinder 1 is provided with a rubber part 11. The rubber part 11 improves the sealing performance of the device and the part below the mouse neck.

[0036] As shown in Figure 2 , 3 , 5, in another technical solution, the medicine feeding valve 22 includes a first valve body 23 and a first valve rod 24. The first valve body 23 has a first valve rod 24 installation space arranged in the up-down direction and an annular passage arranged in the front-rear direction. The upper end of the rod body of the first valve rod 24 extends out of the first valve rod 24 installation space to form a handle. The upper part and the lower part of the rod body of the first valve rod 24 are installed in the first valve rod 24 installation space through bearings. The upper part and the lower part of the rod body of the first valve rod 24 and the installation space of the first valve body 23 are further provided with a sealing ring. The middle part of the rod body of the first valve rod 24 is provided with a circular valve body 25 to close the annular passage.

[0037] In the above technical solution, in order to simplify the structure and operation difficulty of the valve, the medicine feeding valve 22 is preferably in the form of the circular valve body 25 closing the annular passage. The first valve body 23 is arranged as a cross-shaped through cavity, that is, the first valve rod 24 installation space is in the annular passage. The relative rotation of the first valve rod 24 is realized through the bearing structure in the first valve rod 24 installation space, and the sealing performance is realized through the sealing ring. The rotation of the handle makes the first valve rod 24 rotate, so that the circular valve body 25 closes or opens the annular passage. The structure is simple and the operation is simple.

[0038] As shown in Figure 2 , 4, 6, in another technical solution, the intake valve 31 includes a second valve body 33 and a second valve rod 34, the second valve body 33 has a front and rear direction of the second valve rod 34 installation space, the second valve rod 34 installation space is provided with a front radial extension section 35, the rear radial extension section 36, the front radial extension section 35, the rear radial extension section 36 is provided with an axial through hole and a circumferential through hole, the second valve rod 34 of the rod body is arranged in the axial through hole of the front radial extension section 35, the rear radial extension section 36, the second valve rod 34 of the rod body is provided with a circular check ring 37, the outer diameter of the circular check ring 37 is smaller than the outer diameter of the front radial extension section 35, the rear radial extension section 36, and larger than the outer diameter of the circumferential through hole, the circular check ring 37 and the front radial extension section 35 are further provided with a reset spring 38, the elastic force of the reset spring 38 makes the circular check ring 37 close the circumferential through hole of the rear radial extension section 36, the pressure of the compression fan 32 makes the second valve body 33 overcome the elastic force of the reset spring 38, and the circumferential through hole of the rear radial extension section 36 and the front radial extension section 35 forms an air path.

[0039] In the above technical solution, in order to realize the flow of anesthetic into the mask cylinder 1, the intake valve 31 is preferably a one-way check structure, the front radial extension section 35 and the rear radial extension section 36 are both inner connected to the second valve rod 34 installation space, the axial through hole is used for the front and rear movement of the second valve rod 34, the circumferential through hole is used for the flow of air, the second valve rod 34 is provided with a circular check ring 37, the size of the circular check ring 37 is such that the circular check ring 37 can close the rear radial extension section 36 (and the circumferential through hole of the rear radial extension section 36) under the pressure of the reset spring 38, the reset spring 38 is a compression spring, which is compressed under the action of air pressure, the gap between the circular check ring 37 and the front radial extension section 35 allows the air to enter the medicine cylinder 2 through the circumferential through hole of the front radial extension section 35, and the circular check ring 37 closes the rear radial extension section 36 when the external pressure is not applied. When in use, the compression fan 32 provides air, and the air pressure realizes the pushing effect of the circular check ring 37, so that the circular check ring 37 forms a gap with the rear radial extension section 36, and the air enters the medicine cylinder 2 through the circumferential through hole of the rear radial extension section 36 and the circumferential through hole of the front radial extension section 35.

[0040] In another technical solution, the outer periphery of the rear radial extension section 36 is further provided with an annular stopper forwardly, the circular stop ring 37 comprises a front stop ring part and a rear stop ring part, the outer diameter of the annular stopper is greater than the outer diameter of the front stop ring part, greater than the outer diameter of the rear stop ring part, and greater than the outer diameter of the through hole. The annular stopper is the part of the rear radial extension section 36 extending forwardly in the axial direction, so that the rear radial extension section 36 forms a stepped structure, and the circular stop ring 37 cooperates to form a stepped structure, further forming a zigzag path, improving the one-way flow effect of the gas flow and avoiding the reverse escape of the anesthetic.

[0041] The number of devices and the scale of processing described here are used to simplify the description of the present application. The application, modification and change of the present application are obvious to those skilled in the art.

[0042] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and the embodiments listed in the specification, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. A mouse anaesthesia device, characterised in that, It comprises, from front to back, a mask cylinder, which is a conical cylinder, having a mask space above the mouse neck, a medicine feeding cylinder, which is a cylindrical cylinder, having a medicine feeding head connected through a medicine feeding tube in the middle of the cylinder body, and a medicine feeding valve provided in the front part of the cylinder body, and an air inlet cylinder, having an air inlet valve provided in the middle of the cylinder body and a compressed air fan provided in the rear part of the cylinder body. A transition cylinder is provided between the air inlet cylinder and the medicine feeding cylinder, which is a circular truncated cone structure, and the outer diameter size of the connection between the transition cylinder and the air inlet cylinder is smaller than that of the connection between the transition cylinder and the medicine feeding cylinder. The front end of the mask cylinder is provided with a rubber part. The medicine feeding valve comprises a first valve body and a first valve rod, the first valve body has a first valve rod mounting space arranged in the up-down direction and an annular passage arranged in the front-rear direction, the upper end of the rod body of the first valve rod extends out of the first valve rod mounting space to form a handle, the upper and lower parts of the rod body of the first valve rod are installed in the first valve rod mounting space through bearings, and a sealing ring is further provided between the upper and lower parts of the rod body of the first valve rod and the first valve body mounting space, and a circular valve body is provided in the middle part of the rod body of the first valve rod to close the annular passage.

2. The mouse anesthetizing apparatus according to claim 1, wherein The air inlet valve comprises a second valve body and a second valve rod, the second valve body has a second valve rod mounting space arranged in the front-rear direction, the second valve rod mounting space is provided with a front radial extension segment and a rear radial extension segment, the front radial extension segment and the rear radial extension segment are both provided with an axial through hole and a circumferential through hole, the rod body of the second valve rod is arranged in the axial through hole of the front radial extension segment and the rear radial extension segment, a circular check ring is provided in the middle part of the rod body of the second valve rod, the outer diameter of the circular check ring is smaller than the outer diameter of the front radial extension segment and the rear radial extension segment and larger than the outer diameter of the circumferential through hole, a return spring is further provided between the circular check ring and the front radial extension segment, the elastic force of the return spring makes the circular check ring close the circumferential through hole of the rear radial extension segment, and the pressure of the compressed air fan makes the second valve body overcome the elastic force of the return spring to form an air passage through the circumferential through hole of the rear radial extension segment and the front radial extension segment.

3. The mouse anesthesia device of claim 1, wherein The outer periphery of the rear radial extension segment is further provided with an annular stop block in front, and the circular check ring comprises a front check ring part and a rear check ring part, the outer diameter of the annular stop block is larger than the outer diameter of the front check ring part, the outer diameter of the rear check ring part, and the outer diameter of the circumferential through hole.

4. The mouse anesthesia device of claim 1, wherein ​ 5. The mouse anesthesia device of claim 1, wherein ​ 6. The mouse anesthetizing apparatus as claimed in claim 5, wherein ​

Images