CN209529141U - It is a kind of to be conducive to mouse and pluck the easy device that eyeball takes blood - Google Patents

Abstract

The utility model discloses a simple device which is beneficial for mice to pick eyeballs and take blood. A push rod runs through the center of the plate, a liquid outlet is connected to one side of the lower end of the negative pressure chamber, a cover is installed on the liquid outlet, and a hose is connected to the other side of the lower end of the negative pressure chamber, and the lower end of the push rod penetrates the negative pressure chamber. Ballast chamber, and extend to the inside of the negative pressure chamber. This is a simple device that is beneficial for mice to pick eyeballs and take blood. The upper end of the negative pressure chamber is connected with a fixed plate, and the cover plate is fixed by means of arc-shaped grooves and arc-shaped inserts. The piston is released at an appropriate time, which is convenient for the staff. The test preparation is convenient for one person to complete the experimental process and easy to operate; in addition, a storage box is connected between the suction tube and the hose, and a through hole is opened at the bottom of the storage box, so that the mouse's eyeballs are intercepted in the storage inside the box to avoid clogging the hose.

Description

A Simple Device Facilitating Eyeball Extraction in Mice

technical field

The utility model relates to the technical field of a mouse blood-taking device, in particular to a simple device that is beneficial to mouse eyeballs and blood-taking.

Background technique

In order to detect the parameters of various indicators of mouse blood for experimental purposes, the most commonly used clinical mouse blood collection method is the eyeball method. This method is to use the left hand to grab the skin of the neck of the animal, and the thumb and index finger of the left hand try to remove the eye skin of the animal. Press to the back of the neck to make the animal's eyes congested and protrude. The eyeballs are removed with curved forceps, and the mouse is turned upside down with the head down to allow the blood to flow out. During the operation of this method, it is necessary to use curved tweezers to pick up the eyeball. The tool is clumsy and the success rate of the operation is low. Resistance, affecting the scientific nature of the test results.

Chinese patent CN201453408U discloses a kind of mouse plucks the device of eyeball and takes blood. It is mainly composed of the following parts: handle, negative pressure chamber, piston, spring, air vent, rubber tube, suction tube, and switch. There is a piston bomb in the negative pressure cabin, the piston is closely connected with the negative pressure bulkhead, the lower part of the piston is connected to the spring, and the spring is in a compressed state, the upper part of the piston is connected to the handle, and there is one at the bottom of the negative pressure cabin that can only be exhausted from the inside out. Breathe. The bottom of the negative pressure cabin is also connected with a rubber tube, and the other end of the rubber tube is connected with a suction pipe, and a switch is arranged on the suction pipe to control the suction to communicate with the outside atmosphere. The device uses a spring-piston type to generate negative pressure, which can quickly and safely complete mouse eyeball enucleation, reduce operating noise, alleviate mouse fear, save power and protect the environment, and improve the compactness and repeatability of the test.

Although this application solves the problems in the background technology to a certain extent, the structure of the device is too simple. When using it, after pressing the handle, the handle bounces up quickly under the action of the spring, which is not conducive to single-person operation. At the same time, the suction tube sucks the eyeballs taken out into the rubber tube, and the rubber tube enters the negative pressure cabin, which may block the foot tube during the process, and the eyeballs falling into the negative pressure cabin are not easy to take out.

Utility model content

The purpose of the utility model is to provide a simple device which is beneficial for removing eyeballs and blood from mice, which has the advantages of convenient operation, easy cleaning and no clogging, and solves the problems in the prior art.

In order to achieve the above purpose, the utility model provides the following technical solutions: a simple device that is beneficial to mouse eyeball extraction, including a negative pressure chamber, the upper end of the negative pressure chamber is connected with a fixed plate, and the two ends of the fixed plate are opened There are symmetrical arc-shaped grooves, a push rod runs through the center of the fixed plate, a liquid outlet is connected to one side of the lower end of the negative pressure chamber, a cover is installed on the liquid outlet, and a hose is connected to the other side of the lower end of the negative pressure chamber. The lower end of the push rod runs through the negative pressure chamber and extends to the interior of the negative pressure chamber. One end of the push rod placed inside the negative pressure chamber is connected to a piston, and the upper end of the push rod is connected to a push block. The two sides of the lower surface of the push rod are A compression spring is symmetrically connected, the lower end of the compression spring is fixedly connected with the upper surface of the fixed plate, the upper surface of the push block is fixedly connected with a rotating shaft, the upper end of the rotating shaft is connected with a limit block, and the rotating shaft is movably connected with a cover plate, the cover The center position of the lower surface of the plate is fixedly connected with a rotating column, and the lower end of the rotating column is provided with a movable groove, which is movably connected with the limit block. The lower end is fixedly connected with an arc-shaped insertion strip that matches the arc-shaped groove. The end of the hose away from the negative pressure chamber is connected with a first installation head, and the first installation head is engaged with a storage box. The lower end is fixedly connected with the second installation head, and the outer wall of the second installation head is provided with external thread, and the external thread is meshed with the first installation head, and the connection between the storage box and the second installation head is provided with a through hole, and the storage box A third installation head is connected to the upper end of the third installation head, and an internal thread is provided on the inner wall of the third installation head. The suction hole is connected with the suction pipe.

Preferably, both the fixing plate and the cover plate are rectangular plates with arc-shaped ends, and the fixing plate matches the cover plate.

Preferably, the rotating shaft runs through the movable groove.

Preferably, the diameter of the spherical interface is larger than the diameter of the suction pipe, and the diameter of the suction hole is smaller than the diameter of the spherical interface.

Preferably, the storage box is a conical member.

Preferably, the inner wall of the first mounting head is provided with threads matching the external threads, and the outer wall of the suction pipe is provided with threads matching the internal threads.

Compared with the prior art, the beneficial effects of the utility model are as follows:

This is a simple device that is beneficial for mice to remove eyeballs and take blood. A fixed plate is connected to the upper end of the negative pressure chamber, and a cover plate is movably connected to the upper end of the push block. The cover plate is fixed by means of arc-shaped grooves and arc-shaped inserts. Choose an appropriate time to release the piston, which is convenient for the staff to prepare for the test, and it is convenient for one person to complete the experimental process and easy to operate; in addition, a storage box is connected between the suction tube and the hose, and a storage box is opened at the bottom of the storage box. The through hole ensures the connection between the suction tube and the hose, and enables the mouse's eyeballs to be intercepted in the storage box to avoid clogging the hose. At the same time, the storage box adopts a meshing connection method, which is convenient for installation and disassembly, and is helpful for cleaning and disinfection Afterwards, it can be reused to save the test cost.

Description of drawings

Fig. 1 is the overall structural diagram of the utility model;

Fig. 2 is the top view of the negative pressure chamber of the present utility model;

Fig. 3 is the bottom view of the cover plate of the present utility model;

Fig. 4 is a structural diagram of the storage box of the present utility model;

Fig. 5 is a structural diagram of the spherical interface of the present invention.

In the figure: 1. Negative pressure chamber; 11. Fixed plate; 12. Arc groove; 13. Liquid outlet; 14. Cover; 2. Push rod; 21. Piston; 22. Push block; 23. Compression spring; 24 , rotating shaft; 25, limit block; 3, hose; 31, first installation head; 4, cover plate; 41, rotating column; 42, movable groove; 43, arc baffle plate; 44, arc insert ;5, storage box; 51, second installation head; 52, external thread; 53, third installation head; 54, internal thread; 55, through hole; 6, suction pipe; 61, spherical interface; 62, suction hole .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-5, a simple device that is beneficial to mouse eyeball extraction and blood collection, including a negative pressure chamber 1, the upper end of the negative pressure chamber 1 is connected with a fixed plate 11, and two ends of the fixed plate 11 are provided with symmetrical arcs shaped groove 12, the central position of the fixed plate 11 is penetrated with a push rod 2, one side of the lower end of the negative pressure chamber 1 is connected with a liquid outlet 13, and a cover 14 is installed on the liquid outlet 13, and the other side of the lower end of the negative pressure chamber 1 Connected with a hose 3, the lower end of the push rod 2 runs through the negative pressure chamber 1 and extends to the interior of the negative pressure chamber 1. The end of the push rod 2 placed inside the negative pressure chamber 1 is connected to a piston 21, and the push rod 2 pushes the piston 21 Moving up and down, the upper end of the push rod 2 is connected with a push block 22, and the two sides of the lower surface of the push block 22 are symmetrically connected with a compression spring 23, and the lower end of the compression spring 23 is fixedly connected with the upper surface of the fixed plate 11, and the upper surface of the push block 22 Fixedly connected with a rotating shaft 24, the upper end of the rotating shaft 24 is connected with a limit block 25, the rotating shaft 24 is movably connected with a cover plate 4, and the cover plate 4 can rotate around the rotating shaft 24, the fixed plate 11 and the cover plate 4 are both ends An arc-shaped rectangular plate, and the fixed plate 11 matches the cover plate 4, and the center position of the lower surface of the cover plate 4 is fixedly connected with a rotating column 41, and the lower end of the rotating column 41 is provided with a movable groove 42, and the rotating shaft 24 runs through the movable groove 42, the movable groove 42 is movably connected with the limit block 25, and the lower surface of the two ends of the cover plate 4 is symmetrically connected with an arc-shaped baffle 43, and the lower end of the arc-shaped baffle 43 is fixedly connected with an arc-shaped plug that matches the arc-shaped groove 12. Bar 44, the end of the hose 3 away from the negative pressure chamber 1 is connected to the first installation head 31, the first installation head 31 is engaged with the storage box 5, the storage box 5 is a circular truncated member, and the storage box 5 is used for storage Mouse eyes, the lower end of the storage box 5 is fixedly connected with a second installation head 51, and the outer wall of the second installation head 51 is provided with an external thread 52, and the external thread 52 is meshed with the first installation head 31, and the first installation head 31 The inner wall of the inner wall is provided with a thread matched with the external thread 52, which is threaded to facilitate installation and disassembly. The connection between the storage box 5 and the second installation head 51 is provided with a through hole 55, which is used for ventilation. The upper end of the object box 5 is connected with a third mounting head 53, and the inner wall of the third mounting head 53 is provided with an internal thread 54, and the internal thread 54 is meshed with a suction pipe 6, and the external wall of the suction pipe 6 is provided with a thread 54 corresponding to the internal thread 54. Matching threads, the upper end of the suction pipe 6 is connected with a spherical joint 61, the spherical joint 61 is provided with a suction hole 62 that runs through the spherical joint 61, the suction hole 62 communicates with the suction pipe 6, and the diameter of the spherical joint 61 is greater than that of the suction pipe 6. diameter, the diameter of the suction hole 62 is less than the diameter of the spherical interface 61, the suction hole 62 is in direct contact with the eyeball of the mouse, and is used for picking the eyeball.

Working process: first rotate the cover plate 4 to be perpendicular to the fixed plate 11, press the cover plate 4, the compression spring 23 contracts, the piston 21 moves down, and the gas in the negative pressure chamber 1 is discharged, when the arc-shaped insert 44 meets the arc When the shaped grooves 12 are parallel, rotate the cover plate 4, and the arc-shaped insertion strip 44 is engaged with the arc-shaped groove 12 to fix the position of the cover plate 4. Grab the skin of the neck of the animal with the left hand, and place the thumb and index finger of the animal as far as possible Press the skin to the back of the neck to make the eyes of the animal congest and protrude. Put the suction hole 62 in direct contact with the eyeball of the mouse, and rotate the cover plate 4 with the right hand. The cover plate 4 is rotated to be perpendicular to the fixed plate 11. Under the action of the compression spring 23, The cover plate 4 is lifted up, the piston 21 moves upward, negative pressure is generated in the negative pressure chamber 1, the eyeballs of the mouse are sucked out through the suction hole 62, and enter the storage box 5 through the suction tube 6, and the mouse is turned upside down with the head down. Let the blood flow out into the prepared vessel. After the blood collection is completed, unscrew the suction tube 6 and the storage box 5 for cleaning, take out the mouse eyeball, and at the same time, pass the blood and other substances flowing into the negative pressure chamber 1 through the liquid outlet. Port 13 is poured out.

To sum up: this is a simple device that is beneficial for mice to pick eyeballs and take blood. The upper end of the negative pressure chamber 1 is connected to the fixed plate 11, and at the same time, the upper end of the push block 22 is movably connected to the cover plate 4. The cover plate 4 is fixed by means of arc-shaped inserts 44, and the piston 21 is released at an appropriate time, which is convenient for the staff to prepare for the test, facilitates a single person to complete the test process, and is convenient for operation; in addition, between the suction pipe 6 and the hose 3 The storage box 5 is connected, and a through hole 55 is opened at the bottom of the storage box 5 to ensure that the suction pipe 6 and the hose 3 are connected, and the mouse eyeballs can be intercepted in the storage box 5 to avoid blocking the hose 3. At the same time, the storage box 5 adopts a meshing connection method, which is convenient for installation and disassembly, is helpful for cleaning, can be reused after disinfection, and saves test costs.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. Be conducive to mouse 1. a kind of and pluck the easy device that eyeball takes blood, including negative pressure cabin (1), it is characterised in that: the negative pressure cabin (1) upper end is connected with fixed plate (11), and the both ends of fixed plate (11) offer symmetrical arc groove (12), fixed plate (11) Center is through having push rod (2), and the side of negative pressure cabin (1) lower end is connected with liquid outlet (13), and liquid outlet is equipped on (13) The other side of lid (14), negative pressure cabin (1) lower end is connected with hose (3), and negative pressure cabin (1) is run through in the lower end of the push rod (2), and The inside of negative pressure cabin (1) is extended to, push rod (2) is placed in the internal one end of negative pressure cabin (1) and is connected with piston (21), push rod (2) Upper end is connected with pushing block (22), and the two sides of pushing block (22) lower surface are symmetrically connected with compressed spring (23), compressed spring (23) Lower end is fixedly connected with the upper surface of fixed plate (11), and the upper surface of pushing block (22) is fixedly connected with rotary shaft (24), rotary shaft (24) upper end is connected with limited block (25), and rotary shaft (24) is connected with cover board (4), in cover board (4) lower surface It is fixedly connected on the heart position column spinner (41), the lower end of column spinner (41) offers loose slot (42), loose slot (42) and limit Position block (25) is flexibly connected, and the lower surface at cover board (4) both ends is symmetrically connected with curved baffle (43), the lower end of curved baffle (43) It is fixedly connected with the arc cutting (44) to match with arc groove (12), the hose (3) connects far from the one end of negative pressure cabin (1) Have the first mounting head (31), the first mounting head (31) engagement is connected with hiding object box (5), and the lower end of hiding object box (5) is fixed to be connected It is connected to the second mounting head (51), is offered on the outer wall of the second mounting head (51) external screw thread (52), external screw thread (52) and the first peace Head (31) engagement connection is filled, hiding object box (5) and the junction of the second mounting head (51) offer through-hole (55), hiding object box (5) Upper end is connected with third mounting head (53), is offered on the inner wall of third mounting head (53) internal screw thread (54), and internal screw thread (54) is nibbled Conjunction is connected with suction pipe (6), and the upper end of the suction pipe (6) is connected with spherical interface (61), is offered on spherical interface (61) Through the absorption hole (62) of spherical interface (61), draws hole (62) and be connected with suction pipe (6).
2. A kind of be conducive to mouse 2. according to claim 1 and pluck the easy device that eyeball takes blood, it is characterised in that: is described solid Fixed board (11) and cover board (4) are the rectangular slab that both ends are arc, and fixed plate (11) matches with cover board (4).
3. A kind of be conducive to mouse 3. according to claim 1 and pluck the easy device that eyeball takes blood, it is characterised in that: the rotation Shaft (24) runs through loose slot (42).
4. A kind of be conducive to mouse 4. according to claim 1 and pluck the easy device that eyeball takes blood, it is characterised in that: the ball The diameter of shape interface (61) is greater than the diameter of suction pipe (6), and the diameter for drawing hole (62) is less than the diameter of spherical interface (61).
5. A kind of be conducive to mouse 5. according to claim 1 and pluck the easy device that eyeball takes blood, it is characterised in that: the hiding Object box (5) is truncated cone-shaped component.
6. A kind of be conducive to mouse 6. according to claim 1 and pluck the easy device that eyeball takes blood, it is characterised in that: described The screw thread to match with external screw thread (52) is offered on the inner wall of one mounting head (31), offered on the outer wall of suction pipe (6) with The screw thread that internal screw thread (54) matches.