CN215192564U

CN215192564U - Mouse tail intravenous route fixing device

Info

Publication number: CN215192564U
Application number: CN202120778212.8U
Authority: CN
Inventors: 刘秀芹; 刘建柱; 刘闻闻; 徐磊
Original assignee: Shandong Second People's Hospital Shandong Ear Nose Throat Hospital Shandong Ear Nose Throat Research Institute
Current assignee: Shandong Second People's Hospital Shandong Ear Nose Throat Hospital Shandong Ear Nose Throat Research Institute
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-12-17
Anticipated expiration: 2031-04-15

Abstract

The application is a mouse tail intravenous injection fixing device, which belongs to the technical field of mouse intravenous injection fixing and comprises a cylinder body, wherein one end of the cylinder body is provided with an opening, the other end of the cylinder body is a closed conical end, the conical end is provided with a through hole along the axial direction of the cylinder body, and the diameter of the through hole is smaller than the diameter of the opening of the cylinder body; the limiting cover is movably arranged at the opening end of the cylinder body; the communicating groove is arranged on the wall of the barrel along the axial direction of the barrel and extends from one end of the inlet to one end of the through hole; one end of the locking piece is connected with the limiting cover, and the other end of the locking piece penetrates through the communicating groove and is arranged on the barrel; through above-mentioned scheme when fixed mouse, the people hand is held the mouse afterbody and is fallen the pulling-in barrel with the mouse for the afterbody of mouse passes the through-hole on the barrel toper end and stretches out the outside of barrel, and the health of mouse then is pulled into in the barrel, then spacing lid seals the barrel opening, and the mouse is by hoop firmly in the barrel like this, and its afterbody separates completely with the health of mouse, and the experimenter of being convenient for carries out intravenous injection to it.

Description

Mouse tail intravenous route fixing device

Technical Field

The utility model relates to a mouse intravenous route fixes technical field, especially relates to a mouse afterbody intravenous route fixing device.

Background

In medical research, mice are often selected as experimental subjects to perform pharmacological, toxicological, tumor experiments and various acute and chronic experiments, and the current administration modes of the mice mainly include intraperitoneal injection, subcutaneous injection, tail vein injection and the like, wherein the tail vein injection is an important administration method, but the tail of the mice is thin, so that the difficulty of fixing the tail of the mice and the difficulty of intravenous injection are high, and the mice are widely limited in the experiments. The fixing device that present mouse afterbody adopted is difficult directly to clip the mouse afterbody and directly drags into fixing device externally, but the manual work is placed the mouse on fixing device, then separates mouse afterbody and health on fixing device, because the mouse carries out intravenous route under the living body, it constantly struggles when placing on fixing device to make on fixing device not too easily with the afterbody of mouse and the health separately, increase the difficulty of artifical fixed mouse afterbody and the difficulty of intravenous route.

SUMMERY OF THE UTILITY MODEL

This application is in order to solve the fixing device that uses when current mouse carries out intravenous route and can not directly drag into fixing device with the afterbody of mouse, and then can not directly be with the detached problem of the health and the afterbody of mouse to increased mouse afterbody intravenous route's difficulty, this application designs a mouse afterbody intravenous route fixing device, and the technical scheme of its concrete adoption is:

a mouse tail intravenous injection fixation device, comprising:

the barrel, one end of the barrel has openings, another end is the closed conical end, the conical end has through holes along the axial direction of the barrel, the diameter of the through hole is smaller than the opening diameter of the barrel;

the limiting cover is movably arranged at the opening end of the barrel and used for closing the opening;

the communicating groove is arranged on the wall of the barrel along the axial direction of the barrel and extends from one end of the inlet to one end of the through hole;

the spacing lid is connected to locking piece, locking piece one end, and the other end passes the intercommunication groove and sets up in the barrel.

Preferably, the limiting cover is a limiting piston, the limiting piston is arranged in the cylinder and used for sealing an opening of the cylinder, the locking piece is a bolt, a screw end of the bolt is screwed into the limiting piston along the radial direction of the limiting piston, and a nut end of the bolt extends out of the communicating groove.

Preferably, the cylinder is a transparent cylinder.

Preferably, the outer wall that the barrel is close to the toper end is provided with two support bars, and each support bar sets up along the axial of barrel, and two support bars set up along the circumference symmetry of barrel, and two support bars are equipped with the heating pad, and the heating pad has the depressed area along support bar length direction, and the heating pad surface that corresponds the depressed area is provided with the magic subsides.

Preferably, the outer wall that the barrel is close to the cone end is provided with ring rail, has the ring channel on the ring rail, and each support bar slides and sets up in the ring channel, still includes:

and the stopping piece is arranged between the annular guide rail and the supporting bar and used for fixing the supporting bar on the annular guide rail.

Preferably, the annular guide rail is provided with a plurality of threaded holes along the radial direction, the plurality of threaded holes are arranged at intervals along the circumferential direction of the annular guide rail, the stop member is a stop bolt, and the stop bolt is screwed in the threaded holes.

Preferably, the method further comprises the following steps:

a fixed seat;

the telescopic link, telescopic link one end set up in the fixing base, and the other end is connected with the barrel.

Preferably, the one end that the fixing base was kept away from to the telescopic link is provided with the universal joint, and the telescopic link passes through the universal joint to be connected with the barrel.

Preferably, clamping jaws are fixed on the universal joint, the clamping diameter of each clamping jaw is smaller than that of the cylinder, and the clamping jaws can clamp the cylinder tightly.

Preferably, the surface of the clamping jaw, which is in contact with the cylinder body, is provided with a silica gel pad.

Preferably, the barrel and the telescopic rod are made of plastic, and the fixing seat is made of stainless steel.

The utility model discloses a set up the barrel and set up opening and through-hole on the barrel, and set up the intercommunication groove and communicate through-hole and opening on the barrel, when fixed mouse, the people hand is held the mouse afterbody and is drawn the mouse into the barrel upside down, make the afterbody of mouse pass the through-hole that the barrel cone was served and stretch out the outside of barrel, and the health of mouse then by in drawing into the barrel, then spacing lid seals the barrel opening, the mouse is hooped firmly in the barrel like this, its afterbody separates with the health of mouse completely, the laboratory staff of being convenient for carries out intravenous injection to it, the mouse can not sting the laboratory staff completely.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the structure with the cartridge removed;

FIG. 3 is an enlarged view taken at I in FIG. 1;

FIG. 4 is a diagram illustrating a state of the mouse in use according to the present invention;

FIG. 5 is a diagram showing the use of the mouse tail with heat insulation after the heating mat is wrapped around the support bars;

fig. 6 is an enlarged view at II in fig. 5.

In the figure, 1, a fixed seat, 2, a telescopic rod, 3, a universal joint, 4, a clamping jaw, 5, a silica gel pad, 6, a communication groove, 7, a limiting cover, 8, a cylinder body, 9, a through hole, 10, a mouse, 11, a retainer, 12, an annular guide rail, 13, an annular groove, 14, a supporting bar, 15, a locking piece, 16, an opening, 17, a heating pad, 18, a magic tape, 19, a depressed area, 20 and an air vent.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments with reference to the accompanying drawings.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1-6, the present application is a mouse tail intravenous injection fixing device, which comprises a cylinder 8, a limiting cover 7, a communicating groove 6 and a locking member 15.

The cylinder 8 is a cylindrical cylinder 8, one end of the cylinder is provided with an opening 16, the diameters of the cylinder 8 and the opening 16 are close to the body width of a single mouse 10, the length of the cylinder 8 is close to the body length of the single mouse 10, the other end of the cylinder is a closed conical end, a through hole 9 is formed in the conical end along the axial direction of the cylinder 8, the diameter of the through hole 9 is smaller than the diameter of the opening 16 of the cylinder 8, and meanwhile, the diameter of the through hole 9 is close to the tail diameter of the mouse 10.

The activity of spacing lid 7 sets up and is located the barrel 8 simultaneously at the opening 16 end of barrel 8, can also be equipped with air vent 20 on the spacing lid 7, when mouse 10 is bulky, mouse 10 can be with the almost shutoff of intercommunication groove 6, this can utilize air vent 20 on the spacing lid 7 to provide the air for the mouse, spacing lid 7 can move the position in barrel 8, not only be used for sealing opening 16, avoid mouse 10 to come out from the barrel 8 in, and can also remove the position of spacing lid 7 according to the difference of mouse 10 body length, make the space in the barrel 8 only can hold single mouse 10, make mouse 10 can not move about at will in barrel 8, effectual afterbody and the health with mouse 10 separate.

And the communicating groove 6 is arranged on the wall of the cylinder 8 along the axial direction of the cylinder 8, the communicating groove 6 extends from one end of the inlet to one end of the through hole 9, namely, the existence of the communicating groove 6 enables the cylinder 8 to be an open cylinder wall on the side wall, and meanwhile, the communicating groove 6 can be enlarged under the action of external force or because the things contained in the cylinder 8 are too large.

The fixing of the limiting cover 7 on the cylinder 8 is realized by using a locking piece 15, one end of the locking piece 15 is connected to the limiting cover 7, the other end of the locking piece 15 passes through the communicating groove 6 and is arranged on the cylinder 8, when the limiting cover 7 needs to be moved, the locking effect of the locking piece 15 is released, and the position of the limiting cover 7 on the cylinder 8 is manually moved; after the position of the position limiting cover 7 is moved, the position limiting cover 7 is fixed by the locking member 15.

When placing the mouse 10 in barrel 8, the barrel 8 is held to people's one hand, the mouse 10 afterbody is held to the other hand, draw the mouse 10 afterbody from the open end of barrel 8 in through-hole 9 of intercommunication groove 6 back-draw to the cone-shaped end, simultaneously, the whole health of mouse 10 is drawn into in the barrel 8, then move spacing lid 7 to the position that the mouse 10 can not follow the movement in barrel 8, then utilize locking piece 15 to fix spacing lid 7, make the mouse 10 also can not run out from the barrel 8 when the mouse 10 is not held to the people's hand, and the barrel 8 diameter in this application is close with the body width diameter of mouse 10, therefore, the afterbody of mouse 10 can not retract from the barrel 8 in the barrel 8, the mouse 10 afterbody can extend to the outside of barrel 8 all the time, be convenient for the experimenter to carry out intravenous injection to it.

According to the technical scheme, the tail of the mouse 10 can be directly held in the through hole 9 of the cylinder body 8 from the outside, the tail of the mouse 10 is separated from the body, the cylinder body 8 can only contain one mouse 10 due to the action of the limiting cover 7, the mouse 10 is guaranteed to be firmly hooped in the cylinder body, even if the mouse is moved and bounced, too large action cannot be generated, the whole mouse 10 is fixed simply and quickly, and the convenience of intravenous injection is improved; in addition, the fixing device has the advantages of small volume, simple structure, portability, convenient operation and low manufacturing cost.

Further, as for the structure of the limiting cover 7, specifically, the limiting cover 7 is a limiting piston, the limiting piston is disposed in the cylinder 8 and is used for closing the opening 16 of the cylinder 8, and the limiting piston can move in the cylinder 8 along the axial direction thereof while closing the opening 16 of the cylinder 8, and the locking member 15 is a bolt, the screw end of the bolt is screwed into the limiting piston along the radial direction of the limiting piston, and the nut end of the bolt extends out of the communicating groove 6. When the limiting cover 7 needs to be locked, the bolt is screwed down, so that the end face of the nut of the bolt is abutted against the outer wall of the cylinder 8, and the limiting piston is locked; when the limiting piston needs to be moved, the bolt is loosened, and therefore the limiting piston is moved to a proper position by a hand. Further, for the convenience of observation, with above-mentioned barrel 8 for transparent barrel 8, the experimenter can see through barrel 8 and observe the state of mouse 10 in barrel 8, in addition, set up barrel 8 into the daylighting of mouse 10 in barrel 8 that can also be convenient for to mouse 10 leads to other physiological reaction because the dark in barrel 8, and then leads to the rising or the reduction of other hormone secretion in vivo and influence experimental data.

Further, in order to avoid the problem that the tail of the mouse 10 is not filled at a low temperature and the injection is difficult, two support strips 14 are arranged on the outer wall of the barrel 8 near the tapered end, the support strips 14 are made of plastic and can be bonded on the outer wall of the barrel 8 through sintering, each support strip 14 is arranged along the axial direction of the barrel 8 and continuously extends to a certain length towards the outer side of the tapered section end of the barrel 8, meanwhile, the two support strips 14 are symmetrically arranged along the circumferential direction of the barrel 8, a heating pad 17 is arranged on the two support strips 14, the heating pad 17 is provided with a recessed area 19 along the length direction of the support strips 14, the recessed area 19 is used for placing the tail of the mouse 10, a magic tape 18 is arranged on the surface of the heating pad 17 corresponding to the recessed area 19, after the tail of the mouse 10 is placed in the recessed area 19, the tail of the mouse 10 is fixed in the recessed area 19 by the magic tape 18, the heating pad 17 is a foldable electric heating film or electric heating pad, and the temperature of the heating pad is controllable and is controlled between 35 degrees and 45 degrees. Before intravenous injection, the heating pad 17 can be wound on the two supporting strips 14, so that the heating pad 17 can completely wrap the tail of the mouse 10 to realize heat preservation of the tail of the mouse 10 and keep the tail of the mouse 10 full; when the tail part of the mouse 10 is injected in a vein, the heating pad 17 can be detached or taken down, so that the heating pad 17 is prevented from influencing the test injection.

Furthermore, in order to prevent the support strips 14 on the cylinder 8 from influencing the operation of the tester after the heating pad 17 is removed, an annular guide rail 12 is arranged on the outer wall of the cylinder 8 close to the conical end, the annular guide rail 12 is made of plastic, an annular groove 13 is formed in the annular guide rail 12, each support strip 14 is slidably arranged in the annular groove 13, and a stop piece 11 is further arranged between the annular guide rail 12 and each support strip 14, and the stop piece 11 is used for fixing the support strip 14 on the annular guide rail 12. When intravenous injection is needed to be carried out on the mouse 10, the supporting strips 14 can be manually moved to the position where the operation is not affected along the annular guide rail 12, and then injection is carried out; when the mouse 10 needs to be insulated, the supporting strips 14 can move along the annular guide rail 12, so that the supporting strips 14 are uniformly arranged at intervals in the circumferential direction of the annular guide rail 12, then each supporting strip 14 is fixed by the stop piece 11, then the heating pad 17 is wound on the supporting strips 14 again, the supporting strips 14 can support the heating pad 17 to form the heating pad 17 in a cylindrical shape, the tail of the mouse 10 is surrounded by the cylindrical heating pad 17, and the tail of the mouse 10 is insulated.

Further, for the fixation of the stop member 11 on the annular guide rail 12, specifically, the annular guide rail 12 is provided with a plurality of threaded holes along the radial direction thereof, the plurality of threaded holes are arranged at intervals along the circumferential direction of the annular guide rail 12, and the stop member 11 is a stop bolt screwed in the threaded hole. When the support bar 14 needs to be fixed on the annular guide rail 12, the stop bolt is screwed, and the screw end of the stop bolt abuts against the support bar 14, so that the support bar 14 is fixed; when it is desired to move the support bar 14, the stopper bolt is unscrewed so that the screw end of the stopper bolt is disengaged from the support bar 14, thereby achieving the movability of the support bar 14.

Furthermore, the fixing device further comprises a fixing seat 1 and an expansion rod 2. Fixing base 1 is as the base, and the bottom mounting of telescopic link 2 is on fixing base 1, and the upper end is connected with barrel 8, and this telescopic link 2 is exactly to adopt common multisection mechanical type telescopic link 2 among the prior art, and is the same with the telescopic link 2 structure from rapping bar on the market, and the structure to above-mentioned telescopic link 2 is ripe prior art, and this application does not detail it here. Through setting up telescopic link 2 and setting up barrel 8 on telescopic link 2, can realize the altitude mixture control of barrel 8, satisfy the experimenter promptly to the different needs of operating height.

Further, for the angle modulation of conveniently realizing barrel 8, the one end of keeping away from fixing base 1 at telescopic link 2 is provided with universal joint 3, and telescopic link 2 passes through universal joint 3 and is connected with barrel 8, and the existence of universal joint 3 can realize the adjustment of barrel 8 in any direction.

It should be noted that the universal ball head and the ball bowl in the universal joint 3 are tightly connected, and the rotation of the universal joint 3 can be adjusted only when an external force is needed, so that after the angle of the cylinder 8 is adjusted, the cylinder 8 can be fixed at the angle position, and the problem of back-and-forth shaking caused when an experimenter performs intravenous injection on the mouse 10 is avoided; the skilled person can select the existing damping universal joint 3 according to the requirement, for example, the universal joint 3 used for connecting the collecting and fixing claw and the metal hose on the mobile phone support.

Further, in order to facilitate the barrel 8 to be detached from the universal joint 3, the clamping jaws 4 are fixed on the ball bowl of the universal joint 3, the clamping jaws 4 comprise two clamping jaws, the two clamping jaws 4 are symmetrically arranged, the two clamping jaws 4 are connected through torsion springs, the clamping diameters of the two clamping jaws 4 are smaller than the diameter of the barrel 8, and the clamping jaws 4 can clamp the barrel 8 tightly. When the clamping jaw 4 clamps the cylinder body 8, the two clamping jaws 4 cannot cover the communicating groove 6 on the cylinder body 8, and the clamping diameter of the two clamping jaws 4 is smaller than that of the cylinder body 8, so that the communicating groove 6 cannot be influenced by the existence of the two clamping jaws 4 to pass through the tail of the mouse 10. Can dismantle barrel 8 or install fast through clamping jaw 4, when the universal joint 3 play a role not big on telescopic link 2 and on it, also can dismantle the exclusive use of getting off with barrel 8 from universal joint 3. In order to improve the clamping force of the clamping jaw 4, a silica gel pad 5 can be arranged on the surface of the clamping jaw 4, which is in contact with the cylinder 8, and the silica gel pad 5 can elastically deform when clamping the cylinder 8, so that the contact area between the silica gel pad and the cylinder 8 is improved, the friction force between the silica gel pad and the cylinder 8 is increased, and the possibility of sliding friction between the cylinder 8 and the clamping jaw 4 is reduced. In this embodiment, in order to reduce the center of gravity of the whole fixing device, the barrel 8 and the telescopic rod 2 are made of plastic, the barrel 8 is made of transparent plastic, the fixing seat 1 is made of stainless steel, and the fixing seat 1 can concentrate the center of gravity of the whole fixing device on the fixing seat 1, so that the stability of the fixing device can be improved.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. A mouse tail intravenous injection fixing device, comprising:

the barrel body is provided with an opening at one end and a closed conical end at the other end, the conical end is provided with a through hole along the axial direction of the barrel body, and the diameter of the through hole is smaller than the diameter of the opening of the barrel body;

and one end of the locking piece is connected with the limiting cover, and the other end of the locking piece penetrates through the communication groove formed in the barrel.

2. The mouse tail intravenous injection fixing device of claim 1, wherein the limiting cover is a limiting piston, the limiting piston is disposed in the barrel and used for closing the opening of the barrel, the locking member is a bolt, a screw end of the bolt is screwed into the limiting piston along a radial direction of the limiting piston, and a nut end of the bolt extends out of the communicating groove.

3. The mouse tail intravenous injection fixing device of claim 1 or 2, wherein the barrel is a transparent barrel.

4. The mouse tail intravenous injection fixing device of claim 1, wherein the outer wall of the barrel close to the tapered end is provided with two support bars, each support bar is arranged along the axial direction of the barrel, the two support bars are symmetrically arranged along the circumferential direction of the barrel, the two support bars are provided with heating pads, the heating pads are provided with depressed areas along the length direction of the support bars, and the surfaces of the heating pads corresponding to the depressed areas are provided with magic tapes.

5. The mouse tail intravenous injection fixing device of claim 4, wherein the outer wall of the cylinder body near the tapered end is provided with an annular guide rail, the annular guide rail is provided with an annular groove, and each supporting strip is slidably arranged in the annular groove, and the mouse tail intravenous injection fixing device further comprises:

the stopping piece is arranged between the annular guide rail and the supporting strip and used for fixing the supporting strip on the annular guide rail.

6. The mouse tail intravenous injection fixing device of claim 5, wherein the annular guide rail is provided with a plurality of threaded holes along a radial direction thereof, the plurality of threaded holes are arranged at intervals along a circumferential direction of the annular guide rail, and the stopping member is a stopping bolt screwed into the threaded holes.

7. The mouse tail intravenous injection fixing device of claim 1, further comprising:

a fixed seat;

the telescopic link, telescopic link one end set up in the fixing base, the other end with the barrel is connected.

8. The mouse tail intravenous injection fixing device of claim 7, wherein a universal joint is arranged at an end of the telescopic rod away from the fixing seat, and the telescopic rod is connected with the barrel through the universal joint.

9. The mouse tail intravenous fixation device of claim 8, wherein said gimbal has a clamping jaw fixed thereto, said clamping jaw having a clamping diameter smaller than a diameter of said barrel, said clamping jaw capable of clamping said barrel.

10. The mouse tail intravenous injection fixing device of claim 9, wherein a silicone pad is disposed on a surface of the clamping jaw contacting the cylinder.