CN219046993U

CN219046993U - Closed metabolism cage suitable for SPF-level mouse room IVC system

Info

Publication number: CN219046993U
Application number: CN202222791165.8U
Authority: CN
Inventors: 苏雅洁; 王慧君
Original assignee: Childrens Hospital of Fudan University
Current assignee: Childrens Hospital of Fudan University
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-05-23
Anticipated expiration: 2032-10-21

Abstract

The utility model provides a closed metabolism cage suitable for an SPF-level mouse room IVC system, and relates to the technical field of animal metabolism cages. According to the utility model, ventilation is realized by utilizing the air inlet component and the air outlet component, meanwhile, a mouse can stand in a diet area on the filter screen to complete foraging action, and the excrement and urine recoverer can collect excrement and urine.

Description

Closed metabolism cage suitable for SPF-level mouse room IVC system

Technical Field

The utility model relates to the technical field of animal metabolism cages, in particular to a closed metabolism cage suitable for an SPF-level mouse room IVC system.

Background

Because the mice have the unique advantages of small size, stable biological characteristics, high reproduction rate, easiness in artificial culture and the like, the mice are often used as first-choice animals for biological scientific research and teaching experiments, and in order to collect various indexes of the mice during the experiments, the mice to be tested are often placed in a detection cage, the physiological states of the mice need to be closely observed, and then the feeding amount, the feeding amount and the excretion of the mice need to be accurately collected by using collecting equipment.

The existing mouse metabolism cage, such as the application number CN201620760043.4, is named as a rat metabolism cage, and although urine and excrement can be separated and collected, the excrement/urine collection metabolism cage is open, so that the detection effect of the excrement/urine is affected, and an independent air supply system of an SPF mouse room cannot be connected.

Disclosure of Invention

In view of the above, the present utility model aims to provide a closed metabolism cage suitable for an SPF class mouse room IVC system, so as to solve the technical problems that the metabolism cage adopted in the prior art is open, which affects the detection effect of feces/urine and cannot be connected with an independent air supply system of the SPF class mouse room.

In order to achieve the above purpose, the utility model provides a closed metabolism cage suitable for an SPF-level mouse room IVC system, which comprises a box body and a box cover, wherein the box cover is arranged on the box body, the box body and the box cover form a closed space, an air inlet component and an air outlet component are arranged on the top wall of the box cover, the air inlet component is communicated with an independent air supply system of the SPF mouse room, a support frame body is arranged in the box body, a grid area, a food storage area and a water storage area for supporting the air inlet component are arranged on the support frame body, a filter screen is arranged below the support frame body, a movable area and a diet area are arranged on the filter screen, and a urine recoverer is arranged below the filter screen.

According to an alternative embodiment, the grid area occupies 1/2 of the support frame, the food storage area and the water storage area each occupy 1/8 of the support frame, and the remaining 1/4 is directly opposite to the diet area of the filter screen.

According to an alternative embodiment, the filter screen is made of a metal material, and the edges are snapped onto the inner wall of the box.

According to an alternative embodiment, the faecal urine retriever is located below the active area.

According to an alternative embodiment, the faeces and urine recoverer comprises a faeces collection box and a urine collection box, wherein the faeces collection box is buckled below the movable area, and the urine collection box is fixedly arranged below the faeces collection box.

According to an alternative embodiment, the side walls and the bottom wall of the faeces collection cartridge are provided with through holes for filtering faeces.

According to an alternative embodiment, the faeces collection cassette is of funnel-type construction.

According to an alternative embodiment, an opening is provided between the urine collection cassette and a part of the outer wall of the faeces collection cassette, said opening being intended for pouring urine.

According to an alternative embodiment, the two sides of the filter screen are provided with clamping grooves, the two sides of the top of the excrement collecting box are provided with convex clamps, and the convex clamps are matched with the clamping grooves.

According to an alternative embodiment, the distance between the filter screen and the bottom of the box body is 4cm-6cm.

The closed metabolism cage suitable for the SPF-level mouse room IVC system has the following technical effects:

the closed metabolism cage is mainly composed of a box body and a box cover, wherein the box body and the box cover form a closed space, an air inlet component and an air outlet component are arranged on the top wall of the box cover, the air inlet component is communicated with an independent air supply system of the SPF mouse room, a supporting frame body is arranged in the box body, a food storage area, a water storage area and a grid area for supporting the air inlet component are arranged on the supporting frame body, a filter screen is arranged below the supporting frame body, an active area and a food area are arranged on the filter screen, a urine recoverer is arranged below the filter screen, the box body and the box cover form a closed space, ventilation is realized by utilizing the air inlet component and the air outlet component, a mouse can stand on the filter screen to the food storage area and the water storage area, and the urine recoverer can collect excrement and urine, and can also be prevented from falling into the urine recoverer due to the separation of the active area and the food residues, the detection accuracy of the excrement/urine is improved, and the independent air supply system of the SPF mouse room can be docked due to the existence of the air inlet component.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a closed metabolism cage according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a portion of the internal structure of the enclosed metabolic cage of FIG. 1;

FIG. 3 is a top view of a portion of the internal structure of the enclosed metabolic cage of FIG. 2;

FIG. 4 is a side view of a portion of the internal structure of the enclosed metabolic cage of FIG. 2;

fig. 5 is a schematic view of the structure of the filter screen and the fecal urine recoverer in fig. 2.

Wherein, fig. 1-5:

1. a case body; 2. a box cover; 21. a filter element structure; 3. a support frame body; 31. a grid region; 32. a food storage area; 33. a water storage area; 4. a filter screen; 41. an active area; 42. a diet zone; 5. a fecal urine recoverer; 51. a fecal collection box; 511. a through hole; 52. a urine collection cartridge; 521. an opening; 6. a feed; 7. faeces.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do 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 should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

As described in the background art, in the prior art, a mouse metabolism cage, such as CN201620760043.4, is named as a rat metabolism cage, although urine and feces can be collected separately, the feces/urine collection metabolism cage is open, which affects the detection effect of feces/urine, and an independent air supply system of the SPF mouse room cannot be connected.

Based on the above, the utility model provides a closed metabolism cage suitable for an IVC (IVC) system of an SPF (specific pathogen free) class mouse house, which mainly comprises a box body and a box cover, wherein the box cover is arranged on the box body, the box body and the box cover form a closed space, an air inlet component and an air outlet component are arranged on the top wall of the box cover, the air inlet component is communicated with an independent air supply system of the SPF class mouse house, a supporting frame body is arranged in the box body, a food storage area, a water storage area and a grid area for supporting the air inlet component and the air outlet component are arranged on the supporting frame body, a filter screen is arranged below the supporting frame body, a movable area and a food area are arranged on the filter screen, a fecal urine recoverer is arranged below the filter screen, the box body and the box cover form a closed space, the air inlet component and the air outlet component are utilized to realize ventilation, meanwhile, a fecal urine recoverer can collect feces and urine in the food storage area and the water storage area probe, and the fecal urine recoverer can collect the feces and urine, and the food residues can be prevented from falling into the fecal urine recoverer due to the separation of the movable area and the food residues in the separate air inlet component, so that the detection accuracy of the feces and urine can be improved, and the feces and urine can also be prevented from falling into the separate air supply system of the SPF class mouse.

The technical scheme of the utility model is described in detail below with reference to specific drawings 1-5.

As shown in fig. 1, the structure of the closed metabolism cage provided by the utility model is schematically shown, and the closed metabolism cage is suitable for an SPF-class mouse room IVC system.

Specifically, as shown in fig. 1 and 2, the box comprises a box body 1 and a box cover 2, wherein the box body 1 and the box cover 2 are made of hard plastics, the box cover 2 is covered on the box body 1, the box body 1 and the box cover 2 form a closed space, and one side of the box body 1 is high and the other side is low, so that the box body is in an inclined state.

In order to supply air to the enclosed space, an air inlet component is arranged on the top wall of the box cover 2, and the air inlet component is preferably a filter element structure 21, as shown in fig. 1, which is arranged on the top wall of the box cover 2, one side of the air inlet component extends out of the outer side of the box cover 2, is in butt joint with an independent air supply system of the SPF mouse room, and one side of the air inlet component is arranged on the inner side of the box cover 2.

As shown in fig. 2 and 3, a supporting frame body 3 is arranged in the box body 1, a grid area 31 for supporting an air inlet component is arranged on the supporting frame body 3, and further a food storage area 32 and a water storage area 33 are included, wherein the grid area 31 occupies 1/2 of the supporting frame body 3, the food storage area 32 and the water storage area 33 occupy 1/8 of the supporting frame body 3 respectively, the rest 1/4 is opposite to a diet area 42 of the filter screen 4, namely, the rest 1/4 is in a hollowed-out state, the food storage area 32 is used for storing food of mice, and the water storage area 33 is used for storing drinking water of the mice.

The support frame 3 is preferably a stainless steel frame, and the food storage area 32 and the water storage area 33 are hollow on one side facing the food area 42, and the other three sides and the bottom are sealed, so that food or water can be prevented from leaking.

As shown in fig. 2 and 3, a filter screen 4 is arranged below the supporting frame body 3, namely, an active area 41 of a mouse is lifted by the filter screen 4, the distance between the filter screen 4 and the bottom of the box body 1 is 4cm-6cm, preferably 5cm, the edge of the filter screen 4 is buckled on the inner wall of the box body 1, namely, the filter screen 4 is detachably connected with the inner wall of the box body 1, the filter screen 4 is conveniently detached from the inner wall of the box body 1, the filter screen 4 is made of metal materials, preferably a wire gauze, an active area 41 and a diet area 42 are arranged on the filter screen 4, the active area 41 occupies about 1/2 of the whole filter screen 4, the diet area 42 occupies about 1/4 of the whole filter screen 4, the rest 1/4 is opposite to the food storage area 32 and the water storage area 33, a urine 7 recoverer 5 is arranged below the filter screen 4, and the urine 7 are hermetically collected by lifting the active area 41.

The utility model adopts a fixed diet area 42 mode, so as to prevent the scraps of the feed 6 from being brought into the movable area 41 of the mice, and the urine recoverer 5 leaks into the excrement 7 from the movable area 41, thereby affecting the detection accuracy of the excrement 7 and urine.

Specifically, as shown in fig. 2, 4 and 5, the feces 7 urine recoverer 5 is located below the active area 41, and comprises a feces 7 collecting box 51 and a urine collecting box 52, wherein the feces 7 collecting box 51 is buckled below the active area 41, the urine collecting box 52 is fixedly arranged below the feces 7 collecting box 51, and through holes 511 for filtering the feces 7 are formed in the side wall and the bottom wall of the feces 7 collecting box 51.

Further, the excrement 7 collecting box 51 is buckled below the movable area 41, specifically, clamping grooves are formed in two sides of the filter screen 4, convex clamps are arranged on two sides of the top of the excrement 7 collecting box 51 and are matched with the clamping grooves, and therefore the excrement 7 collecting box 51 is buckled below the movable area 41.

Furthermore, the excrement 7 collecting box 51 is preferably of a funnel-shaped structure, so that the excrement 7 and urine of a mouse directly slide into the excrement 7 collecting box 51 after passing through the filter screen 4, and the through holes 511 are formed in the excrement 7 collecting box 51, so that the through holes 511 can filter the excrement 7, and the excrement 7 and urine can be separated.

Further, an opening 521 is provided between the urine collection cassette 52 and a part of the outer wall of the faeces 7 collection cassette 51, as shown in fig. 4 and 5, the opening 521 being used for pouring urine.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a closed metabolism cage suitable for SPF level mouse room IVC system, its characterized in that includes box body and lid, the lid install in on the box body, the box body with the lid forms the enclosure, be equipped with air inlet subassembly and exhaust subassembly on the roof of lid, air inlet subassembly and SPF mouse room's independent air supply system intercommunication, be equipped with the support frame body in the box body, be equipped with on the support frame body and support air inlet subassembly's grid district, food storage district and water storage district, the support frame body below is equipped with the filter screen, be equipped with active region and diet district on the filter screen, the below of filter screen is equipped with excrement and urine recoverer;

the grid area accounts for 1/2 of the supporting frame body, the food storage area and the water storage area respectively account for 1/8 of the supporting frame body, and the rest 1/4 is opposite to the diet area of the filter screen;

the excrement and urine recoverer is positioned below the movable area;

the excrement and urine recoverer comprises an excrement collecting box and a urine collecting box, the excrement collecting box is buckled below the movable area, and the urine collecting box is fixedly arranged below the excrement collecting box.

2. The closed metabolism cage suitable for use in an SPF class mouse room IVC system of claim 1 wherein the filter mesh is made of a metallic material and edges snap onto the inner wall of the box.

3. The closed metabolism cage suitable for use in an SPF class mouse house IVC system of claim 1, wherein the side and bottom walls of the fecal collection box are provided with through holes for filtering fecal matter.

4. The closed metabolism cage suitable for use in an SPF class mouse house IVC system of claim 1, wherein the fecal collection cassette is of a funnel configuration.

5. The closed metabolism cage suitable for use in an SPF class mouse house IVC system of claim 1 wherein an opening is provided between the urine collection cassette and a portion of the outer wall of the fecal collection cassette, the opening being for pouring urine.

6. The closed metabolism cage suitable for an SPF class mouse house IVC system according to any one of claims 1-5, wherein two sides of the filter screen are provided with clamping grooves, two sides of the top of the fecal collection box are provided with convex cards, and the convex cards are matched with the clamping grooves.

7. The closed metabolism cage suitable for use in an SPF class mouse house IVC system of claim 1, wherein the filter screen is a distance of 4cm to 6cm from the bottom of the box.