CN213588590U

CN213588590U - Mouse heart perfusion auxiliary fixing device

Info

Publication number: CN213588590U
Application number: CN202022467258.6U
Authority: CN
Inventors: 温春燕
Original assignee: XIAMEN XIANYUE HOSPITAL
Current assignee: XIAMEN XIANYUE HOSPITAL
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-02
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a mouse heart perfusion auxiliary fixture, include: the hemostatic forceps comprise a fixed plate, a driving cavity, a sliding chute, a U-shaped connecting rod, a first spring, a connecting plate, a fixed rod, a rotating tube, a bearing rod, a connecting block, a threaded rod, a second spring, a connecting tube, hemostatic forceps and a third spring; the bottom of the fixed plate is symmetrically provided with a driving cavity, the top of the fixed plate and above the driving cavity are symmetrically provided with sliding chutes, and the U-shaped connecting rod is arranged in the driving cavity; the utility model discloses a slidable mounting has the connecting plate on the fixed plate, can place the cystosepiment of fixed mouse between the connecting plate, and is fixed firm under the effect of first spring, and the hemostatic forceps that the accessible has the third spring simultaneously can press from both sides the tight fixed to the heart of syringe needle department, avoids the perfusion in-process injection needle hair to take place to shift, can improve experimenter's operating efficiency.

Description

Mouse heart perfusion auxiliary fixing device

Technical Field

The utility model relates to the technical field of medical treatment, particularly, be a mouse heart perfusion auxiliary fixture.

Background

With the development of medical science and technology, people need to further observe and study various functional indexes of the heart, and usually Krebs-Henseleit (KH) solution, fluorocylinders-KH solution and the like are adopted to carry out an isolated perfusion test on the heart of a white mouse, in an animal experiment, heart perfusion material taking is an essential step, and the perfusion result is closely related to the state of tissues. The heart perfusion is to expose the animal heart, insert the perfusion needle into the aorta, fix the perfusion needle, and perfuse the normal saline and the paraformaldehyde in sequence.

In carrying out mouse heart perfusion experimentation, the cystosepiment atress of fixed mouse easily takes place to remove, makes medical personnel carry out heart perfusion experiment operation inconvenient like this, and medical personnel need hand the fixed syringe needle of hemostatic forceps when carrying out the perfusion to the mouse heart moreover, and stability is relatively poor, leads to hemostatic forceps to take place to shift and cause the experiment to break off easily.

SUMMERY OF THE UTILITY MODEL

In order to solve for example above-mentioned technical problem among the prior art, the utility model discloses a mouse heart perfusion auxiliary fixture, include: the hemostatic forceps comprise a fixed plate, a driving cavity, a sliding chute, a U-shaped connecting rod, a first spring, a connecting plate, a fixed rod, a rotating tube, a bearing rod, a connecting block, a threaded rod, a second spring, a connecting tube, hemostatic forceps and a third spring;

the bottom of the fixed plate is symmetrically provided with driving cavities, the top of the fixed plate is symmetrically provided with sliding chutes above the driving cavities, the U-shaped connecting rod is arranged in the driving cavities, the opening end of the U-shaped connecting rod is arranged in the sliding chutes, the first spring is arranged between the U-shaped connecting rod and the side wall surface of the driving cavities, the connecting plate is arranged on the fixed plate, and the bottom of the connecting plate is connected with the opening end of the U-shaped connecting rod;

just be located on the fixed plate connecting plate one side is provided with the dead lever, spacing annular has been seted up to fixed lever top below, the rotating tube set up in the spacing annular, the carrier bar sets up on the rotating tube, the connecting block slide set up in on the carrier bar, the threaded rod set up in on the connecting block, and be located carrier bar one side, the second spring set up in the threaded rod bottom, the connecting pipe set up in second spring bottom, hemostatic forceps set up in the connecting pipe bottom, be provided with the third spring between the hemostatic forceps handle.

Preferably, a limiting plate is arranged on the bearing rod.

Preferably, the connecting block further comprises a limit screw, a threaded hole is formed in the connecting block, and the limit screw is arranged in the threaded hole and is in contact with the bearing rod.

Preferably, a buffer pad is arranged on the connecting plate.

Preferably, the carrier bar is of cylindrical configuration.

Preferably, a bearing is arranged between the connecting pipe and the hemostatic forceps.

The utility model provides a mouse heart perfusion auxiliary fixture possesses following beneficial effect: through slidable mounting on the fixed plate there is the connecting plate, can place the cystosepiment of fixed mouse between the connecting plate, and is fixed firm under the effect of first spring, and the accessible has the hemostatic forceps of third spring simultaneously and can press from both sides the heart of tight fixed to syringe needle department, avoids the injection needle hair of perfusion in-process to take place to shift, can improve experimenter's operating efficiency.

Drawings

Fig. 1 is a schematic structural view of the mouse heart perfusion auxiliary fixing device of the present invention;

fig. 2 is a schematic view of the overhead structure of the mouse heart perfusion auxiliary fixing device of the present invention;

fig. 3 is a schematic side view of the mouse heart perfusion auxiliary fixing device of the present invention.

The attached drawings are as follows:

1. a fixing plate; 2. a drive chamber; 3. a chute; 4. a U-shaped connecting rod; 5. a first spring; 6. a connecting plate; 7. fixing the rod; 8. rotating the tube; 9. a carrier bar; 10. connecting blocks; 11. a threaded rod; 12. a second spring; 13. a connecting pipe; 14. a hemostatic forceps; 15. a third spring; 16. a limiting plate; 17. a limit screw; 18. a cushion pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses a specific embodiment provides a mouse heart perfusion auxiliary fixture, include: the device comprises a fixed plate 1, a driving cavity 2, a sliding chute 3, a U-shaped connecting rod 4, a first spring 5, a connecting plate 6, a fixed rod 7, a rotating tube 8, a bearing rod 9, a connecting block 10, a threaded rod 11, a second spring 12, a connecting tube 13, hemostatic forceps 14 and a third spring 15; the bottom of the fixed plate 1 is symmetrically provided with driving cavities 2, the top of the fixed plate 1 is symmetrically provided with sliding chutes 3 above the driving cavities 2, the U-shaped connecting rod 4 is arranged in the driving cavities 2, the opening end of the U-shaped connecting rod is arranged in the sliding chutes 3, the first spring 5 is arranged between the U-shaped connecting rod 4 and the side wall surface of the driving cavity 2, the connecting plate 6 is arranged on the fixed plate 1, and the bottom of the connecting plate is connected with the opening end of the U-shaped connecting rod 4; a fixing rod 7 is arranged on the fixing plate 1 and located on one side of the connecting plate 6, a limiting ring groove is formed below the top of the fixing rod 7, the rotating pipe 8 is arranged in the limiting ring groove, the bearing rod 9 is arranged on the rotating pipe 8, the connecting block 10 is slidably arranged on the bearing rod 9, the threaded rod 11 is arranged on the connecting block 10 and located on one side of the bearing rod 9, the second spring 12 is arranged at the bottom of the threaded rod 11, the connecting pipe 13 is arranged at the bottom of the second spring 12, the hemostatic forceps 14 are arranged at the bottom of the connecting pipe 13, and a third spring 15 is arranged between forceps handles of the hemostatic forceps 14; a limiting plate 16 is arranged on the bearing rod 9; the bearing rod is characterized by further comprising a limiting screw 17, a threaded hole is formed in the connecting block 10, and the limiting screw 17 is arranged in the threaded hole and is in contact with the bearing rod 9; a buffer pad 18 is arranged on the connecting plate 6; the bearing rod 9 is of a cylindrical structure; a bearing is arranged between the connecting pipe 13 and the hemostatic forceps 14.

Examples

According to the attached drawings 1-3, the mouse heart perfusion auxiliary fixing device provided by the embodiment of the application comprises driving cavities 2 symmetrically formed in two sides of the bottom of a fixing plate 1, sliding grooves 3 symmetrically formed in the upper wall surface of the fixing plate 1 at the top of the driving cavities 2, a U-shaped connecting rod 4 installed in the driving cavities 2, a first spring 5 installed between the driving cavities 2 and the side wall surface of the driving cavity, and a connecting plate 6 connected with the U-shaped connecting rod 4, wherein the connecting plate 6 is pushed towards two sides during an experiment, the distance between the connecting plates 6 is increased, a foam plate for fixing a mouse is placed on the fixing plate 1 and located between the connecting plates 6, under the elastic action of the first spring 5, the connecting plate 6 can clamp the foam plate for fixing the mouse from two sides, the stability of the foam plate and the mouse during the experiment is improved, a bearing rod 9 is rotated according to the position of the heart of the mouse, and the position, can fix connecting block 10 through stop screw 17, avoid sliding to appear in use, then medical personnel operate, when the injection needle deepened the mouse heart and need fix the injection needle, clockwise rotation threaded rod 11, threaded rod 11 drives hemostatic forceps 14 downstream, elastic action through second spring 12 can be with hemostatic forceps 14 downstream pulling, hemostatic forceps 14 penetrates mouse heart department to the injection needle and presss from both sides tightly, install third spring 15 on hemostatic forceps 14, realize hemostatic forceps 14's self-holding, thereby can stabilize the centre gripping to mouse heart department of inserting the injection needle, the risk that drops appears when avoiding follow-up perfusion to the mouse heart, can adjust according to fixed needs, avoid perfusion in-process injection needle to take place the aversion, simultaneously can improve experimenter's operating efficiency.

Preferably, a limit plate 16 is further disposed on the carrying rod 9.

Preferably, the connecting device further comprises a limit screw 17, a threaded hole is formed in the connecting block 10, and the limit screw 17 is arranged in the threaded hole and is in contact with the bearing rod 9.

Preferably, a cushion 18 is further provided on the connecting plate 6.

Preferably, the carrying rod 9 is a cylindrical structure.

Preferably, a bearing is disposed between the connecting tube 13 and the hemostatic forceps 14.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mouse heart perfusion assists fixing device which characterized in that includes: the hemostatic forceps comprise a fixed plate (1), a driving cavity (2), a sliding chute (3), a U-shaped connecting rod (4), a first spring (5), a connecting plate (6), a fixed rod (7), a rotating tube (8), a bearing rod (9), a connecting block (10), a threaded rod (11), a second spring (12), a connecting tube (13), hemostatic forceps (14) and a third spring (15);

the bottom of the fixed plate (1) is symmetrically provided with driving cavities (2), the top of the fixed plate (1) is symmetrically provided with sliding chutes (3) above the driving cavities (2), the U-shaped connecting rod (4) is arranged in the driving cavities (2), the opening end of the U-shaped connecting rod is arranged in the sliding chutes (3), the first spring (5) is arranged between the U-shaped connecting rod (4) and the side wall surface of the driving cavities (2), the connecting plate (6) is arranged on the fixed plate (1), and the bottom of the connecting plate is connected with the opening end of the U-shaped connecting rod (4);

fixed plate (1) is last and be located connecting plate (6) one side is provided with dead lever (7), spacing annular has been seted up to dead lever (7) top below, rotating-tube (8) set up in the spacing annular, carrier bar (9) set up on rotating-tube (8), connecting block (10) slide set up in on carrier bar (9), threaded rod (11) set up in on connecting block (10), and be located carrier bar (9) one side, second spring (12) set up in threaded rod (11) bottom, connecting pipe (13) set up in second spring (12) bottom, hemostatic forceps (14) set up in connecting pipe (13) bottom, be provided with third spring (15) between hemostatic forceps (14) the pincers handle.

2. Mouse heart perfusion auxiliary fixation device according to claim 1, characterized in that a limiting plate (16) is provided on the carrier bar (9).

3. The mouse heart perfusion auxiliary fixing device according to claim 1, further comprising a limit screw (17), wherein a threaded hole is formed in the connecting block (10), and the limit screw (17) is disposed in the threaded hole and contacts with the bearing rod (9).

4. Mouse heart perfusion auxiliary fixation device according to claim 1, characterized in that a cushion (18) is provided on the connection plate (6).

5. Mouse heart perfusion auxiliary fixation device according to claim 1, characterized in that the carrier rod (9) is a cylindrical structure.

6. Mouse heart perfusion auxiliary fixation device according to claim 1, characterized in that a bearing is provided between the connection tube (13) and the hemostat (14).