CN211534965U - Rat brain micro-injection rat fixing device - Google Patents
Rat brain micro-injection rat fixing device Download PDFInfo
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- CN211534965U CN211534965U CN201922273514.5U CN201922273514U CN211534965U CN 211534965 U CN211534965 U CN 211534965U CN 201922273514 U CN201922273514 U CN 201922273514U CN 211534965 U CN211534965 U CN 211534965U
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Abstract
The utility model discloses a rat fixing device for rat brain micro-injection, which comprises a base; the trunk fixing structure is connected to the base and comprises a wrapping surface layer used for wrapping the trunk of the rat and an elastic ring assembly connected to the wrapping surface layer and used for fixing the limbs of the rat, and the middle part of the wrapping surface layer is fixed to the base; the head fixing structure is detachably connected to the base and comprises a head sleeve for covering the head of the rat, and an operation opening corresponding to the position of the rat head injection device is formed in the head sleeve. The rat fixing device for rat brain micro-injection of the utility model has simple operation and stable fixation, and can complete all operations by one person; the fixing structure is adjustable and is suitable for fixing rats with different shapes; the fixing to the head of the rat can be relatively released in the injection process, so that the rat feels more comfortable and the completion of the injection is facilitated.
Description
Technical Field
The utility model belongs to animal experiment mechanical device field especially relates to a rat brain is rat fixing device for microinjection.
Background
As the micro-injection experiment of the ventricles and brain areas of part of animals is required to be completed on a conscious rat. And the animal brain microinjection apparatus 50 (fig. 3) includes a catheter base 51, a catheter cap core 52, a catheter cap 53, and an injection inner tube 54, wherein the catheter base 51, the catheter cap core 52, and the catheter cap 53 are pre-implanted in the hindbrain of the rat. At the time of injection: the rat is fixed, the catheter cap 53 and the catheter cap core 52 in the rat brain are removed, the injection inner tube 54 (with the diameter of about 0.4-0.6 mm) is inserted into the catheter base 51 and is communicated with the hose of the injection pump through the two catheters 541 at the top of the injection inner tube 54, and then the injection by the injection pump is started. The whole operation process is fine in action, the injection process usually lasts for 10-20 minutes, so that rats need to be kept quiet in the whole operation and injection processes, the injection inner tube 54 is easily damaged by carelessness, and even the catheter base 51 falls off, so that the experiment cannot be completed.
At present, the experiment process is mostly finished by a single person domestically, operators are mostly women, rats are poor in compliance, and struggle after being fixed for a long time, so that the rat fixing device is stable, comfortable and suitable for being finished by the single person is particularly important.
The existing rat mechanical fixing device mostly adopts the design of a cylinder sleeve, a head sleeve and the like, mainly aims at the operations of acupuncture, blood sampling, tail vein injection or intraperitoneal injection and the like, and cannot be suitable for rats with micro-injection devices embedded in the brain. Only the arrangement of fixed head and neck among patent CN 209032714U can not fixed rat trunk and four limbs, can not play the effect of stable fixed rat, and single completion operation of being difficult to.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a be applicable to rat brain micro-injection with and single rat fixing device who can accomplish the operation, this rat fixing device can be fixed respectively to the head of rat, afterbody, truck and four limbs, makes the fixed stability to the rat, and can release relatively in the injection process to the fixed of rat head, makes the rat feel more comfortable, more is favorable to the completion of injection.
The utility model discloses the technical scheme who adopts does: a rat brain microinjection rat fixing device, comprising:
a base;
the trunk fixing structure is connected to the base and comprises a wrapping surface layer used for wrapping the trunk of the rat and an elastic ring assembly connected to the wrapping surface layer and used for fixing the limbs of the rat, and the middle part of the wrapping surface layer is fixed to the base;
the head fixing structure is detachably connected to the base and comprises a head sleeve for covering the head of the rat, and an operation opening corresponding to the position of the rat head injection device is formed in the head sleeve.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, be equipped with first connecting portion on the both sides portion of parcel surface course respectively, the one end of first connecting portion with the lateral part of parcel surface course is fixed, the other end extends the parcel surface course, the both sides of base are equipped with respectively and supply two the first fixed part that first connecting portion connects.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, the parcel surface course is the elastic surface course, be equipped with the elastic webbing on the parcel surface course, the middle part of elastic webbing with the middle part of parcel surface course is fixed, the both sides portion of elastic webbing is followed respectively the both sides of parcel surface course are extended the parcel surface course, the both sides portion of elastic webbing detachably connect in two first fixed part respectively.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, two being fixed in of first connecting portion dislocation on the relative lateral part of parcel surface course.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, the elastic ring subassembly includes four elastic rings, and four the elastic ring with the position one-to-one of rat four limbs.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, the both sides of headgear are equipped with the second connecting portion, the both sides of base are equipped with respectively and supply two the second fixed part that the second connecting portion are connected.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, be equipped with on the headgear with an opening of operation mouth intercommunication, the open-ended both sides are connected with one movably and seal the area.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, head fixed knot constructs still include swing joint in the both ends side fixed column of base, the position department corresponding to the rat neck on the base has seted up along rat body width direction and has supplied two simultaneously the gliding first spout of head side fixed column.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, still includes afterbody fixed knot structure, afterbody fixed knot structure include swing joint in the both sides of tail side fixed column of base, the position department corresponding to rat tail root both sides has seted up along rat length direction on the base and has supplied two respectively the gliding two second spouts of tail side fixed column.
The utility model discloses rat brain is rat fixing device for microinjection's further improvement lies in, the position department corresponding to rat head on the base is equipped with a foam-rubber cushion.
Adopt above-mentioned technical scheme, make the utility model discloses an and be not limited to following beneficial effect:
1. through the arrangement of the elastic ring assembly, the four limbs of the rat can be stably fixed, and the force fleeing when the four limbs land can be effectively blocked;
2. due to the arrangement of the elastic band, when the wrapping surface layer wraps and fixes the rat, a smaller caliber can be formed at the elastic band, when the smaller caliber corresponds to the neck position of the rat, the rat can be prevented from moving forwards, and the stability of fixing the rat trunk is improved;
3. the rat fixing device can be used for fixing rats with different body shapes by the sliding arrangement of the head side fixing column and the tail side fixing column;
4. the arrangement of the opening and the sealing belt on the head sleeve is convenient for disassembling the head sleeve in the injection process, so that the head of a rat can move in a certain range, and the rat is prevented from being scorched and uneasy due to long-time complete fixation;
5. through the setting of foam-rubber cushion, improve the comfort level of rat when by complete fixed state.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a rat fixing device in an embodiment of the present invention;
fig. 2 is a schematic structural view of a headgear according to an embodiment of the present invention;
fig. 3 is an exploded view of a micro-injection device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
The existing mechanical rat fixing device mainly aims at acupuncture, blood taking, tail vein injection or intraperitoneal injection and other operations, cannot stably fix four limbs and a brain, cannot be suitable for rats with micro-injection devices embedded in the brain, and is inconvenient for single operation. To the above problem, the utility model provides a rat fixing device who is applicable to rat brain microinjection and single ability completion operation.
The rat brain microinjection rat fixing device of the present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, an embodiment of the present invention provides a rat fixing device for rat brain microinjection, including:
the base 10 is made of a rectangular plastic plate, and the base 10 comprises a head fixing area corresponding to the head of a rat and a trunk fixing area corresponding to the trunk of the rat;
the trunk fixing structure is connected to the trunk fixing area and comprises a wrapping surface layer 21 used for wrapping the trunk of the rat and an elastic ring assembly connected to the wrapping surface layer 21 and used for fixing the four limbs of the rat, the wrapping surface layer 21 is made of a rectangular flexible surface layer, the width of the wrapping surface layer is not smaller than the trunk circumference of the rat, the wrapping surface layer 21 is divided into three parts along the width direction, and the bottom surface of the middle part is fixedly adhered to the trunk fixing area on the base 10 by strong glue;
a head fixing structure detachably connected to the head fixing region, the head fixing structure comprises a head cover 31 for covering the head of the rat, and an operation opening 311 corresponding to the position of the rat head injection device is opened on the head cover 31.
Preferably, the edges of the two side portions of the wrapping surface layer 21 are connected with first connecting portions 22, each first connecting portion 22 is a rectangle with a width of 3cm and a length of 6cm, one short side of each first connecting portion 22 is fixed to the side portion of the wrapping surface layer 21, the other short side of each first connecting portion extends outwards to form the wrapping surface layer 21 along the width direction of the wrapping surface layer 21, and the two sides of the trunk fixing area on the base 10 are respectively provided with first fixing portions 11 for the two first connecting portions 22 to connect. Wherein, first connecting portion 22 can have the multiform with the connected mode of first fixed part 11, and the mode that the magic was pasted is adopted to this embodiment to connect, and preferred first connecting portion 22 is the thorn hair face that the magic was pasted, and first fixed part 11 is the round hair face that this magic was pasted. Adopt above-mentioned improvement, after parcel surface course 21 wraps up the rat trunk, two first connecting portion 22 can be alternately relatively and correspond with the first fixed part 11 of base 10 both sides respectively and be connected, can remain stable motionless after making parcel surface course 21 parcel rat, the effectual rat that has prevented drives parcel surface 21 swing.
Preferably, parcel surface course 21 is the elastic surface course to the messenger wraps up more tightly to the truck of rat, is equipped with elastic webbing 23 on the parcel surface course 21, and the middle part of elastic webbing 23 is fixed with the middle part of parcel surface course 21, and the both sides portion of elastic webbing 23 extends parcel surface course 21 along the both sides of parcel surface course 21 respectively, and the both sides portion of elastic webbing 23 is the thorn hair face that the magic was pasted, in order to realize being connected with 11 detachably of two first fixed parts.
In this embodiment, elastic webbing 23 sets up the position that corresponds to the rat neck on parcel surface course 21 for the parcel surface course can form less bore in elastic webbing department when the fixed rat of parcel, when corresponding to rat neck position department with less bore, can prevent that the rat from scurrying forward, increases the stability fixed to the rat trunk.
Preferably, in order to better fix the two first connecting portions 22 in a crossed manner, the two first connecting portions 22 are preferably fixed to opposite side portions of the wrapping sheet 21 in a staggered manner, preferably, the first connecting portion 22 on one side is fixed to the wrapping sheet 21 at the position of 1/3 of the corresponding side edge, and the first connecting portion 22 on the other side is fixed to the wrapping sheet 21 at the position of 2/3 of the corresponding side edge.
Preferably, in order to cooperate with stable fixation of the rat limbs, the elastic ring assembly of the present embodiment preferably includes four elastic rings 24, and the four elastic rings 24 are in one-to-one correspondence with the rat limbs. Specifically, one end of each of the four elastic rings 24 is fixed to four corners of the wrapping surface layer 21, and the other end is used as a free end, when the rat is wrapped by the wrapping surface layer 21, the free ends of the four elastic rings 24 are correspondingly and crossly sleeved on the root of the four limbs of the rat, and in order to enable the four elastic rings 24 to be smoothly crossly sleeved, it is preferable that an included angle of approximately 30 degrees is formed between the natural stretching direction of each elastic ring 24 and the width direction of the wrapping surface layer 21 in this embodiment; in addition, the elasticity and the size of the elastic ring 24 are proper, so that the rat is prevented from being hurt while the rat is prevented from being pulled off.
Preferably, as shown in fig. 2, the head cover 31 is "hui" shaped, and the four corners of the head cover 31 are respectively provided with a rectangular second connecting portion 312, one short side of the second connecting portion 312 is fixed to the head cover 31, and the other short side extends out of the head cover 31 towards two sides of the head cover 31; the two sides of the head fixing region on the base 10 are respectively provided with a second fixing portion 12 for connecting the second connecting portion 312. The connection mode between the second connection portion 312 and the second fixing portion 12 can be various, in this embodiment, the connection is performed by using a hook and loop fastener, preferably, the second connection portion 22 is a round hair surface of the hook and loop fastener, and the first fixing portion 11 is a burred surface of the hook and loop fastener; the size of the head cover 31 and the second connecting portion 312 needs to be set according to the body shape of the rat, and after the second connecting portion 312 and the second fixing portion 12 are fixed, the operation opening 311 of the head cover 31 is located at the position where the injection device is embedded in the head of the rat, so as to facilitate the insertion of the injection inner tube during injection. The head cover 31 is detachably fixed to the head of the rat by the second connecting portion 312 and the second fixing portion 12.
Preferably, as shown in fig. 2, the main process generally requires different sizes of 10-20 minutes, and the rat head is fixed for a long time in the experiment, which may cause discomfort, irritation and struggle of the rat, therefore, the present embodiment preferably has an opening 313 communicating with the operation opening 311 at the edge of the operation opening 311 of the head cover 31, and two sides of the opening 313 are movably connected with a sealing strip 314. By providing the opening 313 and the sealing tape 314, the cap 31 can be freely removed without detaching the microinjection device, the syringe pump, and other devices during the injection process. Specifically, the position of the opening 313 is determined according to the connection direction of the connection hose of the injection pump during actual injection, the sealing tape 314 is a magic tape, one side of the sealing tape 314 is sewn on one side of the opening 313, and the other side is movably connected to the other side of the opening 313 in an adhering manner, so as to open and close the operation opening 311. When the head cover 31 is removed in the injection range, the head cover 31 can be completely removed by opening the sealing band 314 to separate the connecting hose from the head cover 31 through the opening 313, and then sequentially separating the second connecting portion 312 of the head cover 31 from the second fixing portion 12.
Preferably, the head fixing structure further includes two side fixing posts 32 movably connected to the base 10, and a first sliding slot 13 for the two side fixing posts 32 to slide is disposed at the head fixing region on the base 10 along the width direction of the rat.
In this embodiment, slide and fix both sides to the rat neck respectively with both ends side fixed column 32, for supplementary headgear 31 fixes the rat head, specifically, head side fixed column 32 is the bolt external member, the bolt external member includes the screw rod and overlaps two nuts of locating the screw rod, the screw rod passes first spout 13 perpendicularly, and can freely slide along length direction in first spout 13, the external diameter of two nuts all is greater than the width of first spout 13, after sliding the screw rod in place, screw up two nuts relatively, make two nuts lean on respectively to lean on the upper and lower opening edge of first spout 13 on base 10, for better clamping screw, this embodiment is preferred to increase the gasket that two external diameters are greater than the width of first spout 13 on every bolt external member, two gaskets are filled up respectively and are located between two nuts and first spout 13.
Preferably, the rat fixing device further comprises a tail fixing structure, the tail fixing structure comprises two tail side fixing posts 41 movably connected to the base 10, and two second sliding grooves 14 for the two tail side fixing posts 41 to slide are formed in the base 10 at positions corresponding to two sides of the tail root of the rat along the length direction of the rat.
In this embodiment, the two tail fixing posts 41 are used to abut against the two sides of the tail root of the rat, so as to prevent the rat from moving backwards, and avoid damage to the micro-injection device or the injection pump due to the swinging of the tail. The tail of the rats with different body lengths is fixed by sliding the tail fixing post 41 to adjust the position of the tail fixing post 41 in the second sliding chute 14. The tail side fixing post 41 in this embodiment is a bolt kit identical to the head side fixing post 32, and the detailed structure will not be described herein.
Preferably, in order to improve the head comfort of the rat in the fully fixed state, a sponge pad 15 with a suitable size is fixed on the base 10 at a position corresponding to the head of the rat (i.e. a position located between the two second fixing portions 12 and facing the operation opening 311 of the head cover 31 in the fixed state).
Referring to fig. 1-2, the operation steps of using the rat fixing device of the present invention in rat brain microinjection are as follows:
step 1, a rat is placed on a base 10.
The rat is placed on the ground, the tail of the rat is grasped by the right hand, a small square towel made of soft materials and having the length of 12cm x 18cm x 2cm is held by the left hand (the soft materials can relieve the panic of the rat to the maximum extent, and the rat is prevented from being struggled violently during subsequent fixation so as to damage a micro-injection device and bite an operator), the root of the forelimb and the chest and abdomen of the rat are covered and grasped, then the four limbs of the rat are pressed downwards on the base 10, and the neck of the rat is placed between the fixing columns 32 on the two ends.
Step 2, preliminarily fixing the rat.
Firstly fixing four limbs, winding the elastic rings 24 corresponding to the two forelimbs of the rat into the head of the rat by the right hand in a crossed manner, sleeving and hanging the elastic rings 24 corresponding to the two hind limbs of the rat at the root of the contralateral forelimb of the rat, and sleeving and hanging the elastic rings 24 corresponding to the two hind limbs of the rat at the root of the contralateral hind limb of the rat in a crossed manner;
fixing the head side fixing columns 32, relatively sliding the two head side fixing columns 32 to enable the two head side fixing columns to be just clamped on the two sides of the neck of the rat, and locking the head side fixing columns 32 to enable the two head side fixing columns 32 to be stably fixed on the first sliding grooves 13 of the base 10;
then fixing the trunk, relatively enclosing two side parts of the wrapping surface layer 21, and sequentially crossing two side parts of the two first connecting parts 22 and the elastic belt 23 and pasting and fixing the two side parts with the first fixing parts 11 on the opposite sides of the base 10;
and fixing the tail fixing posts 41, respectively sliding the two tail fixing posts 41 to the tail root of the rat, and locking the tail fixing posts 41, so that the two tail fixing posts 41 are respectively and stably fixed in the two second sliding grooves 14 of the base 10.
The sealing tape 314 is firstly adhered to the other side of the opening 313 to seal the operation opening 311 of the head cover 31, then the second connecting part 312 of the head cover 31 is correspondingly adhered and fixed to the second fixing part 12 on the base 10, the two side fixing posts 32 penetrate through the operation opening 311 of the head cover 31, the left edge and the right edge of the head cover 31 are respectively clamped on the outer sides of the two side fixing posts 32, so that the operation opening 311 is propped open and stably does not move, the micro-injection device in the hindbrain of the rat is exposed through the operation opening 311 to avoid damaging the micro-injection device, the insertion of the injection inner tube during injection is convenient, the lower edge of the head cover 31 is placed at the neck position of the rat, and the micro-injection device embedded in the hindbrain of the rat can penetrate out from the operation opening 311 of the head cover 31.
And 4, installing equipment such as a micro-injection device, an injection pump and the like, and starting injection (generally requiring 10-20 minutes of injection).
Step 5, the head cover 31 is removed in the injection process.
After the injection is started, the sealing band 34 is separated from the other side of the opening 313 to open the operation opening 311, all the second connecting portions 32 are sequentially separated from the second fixing portion 12 of the base 10, and the connection hose of the syringe pump and the like and the micro-injection device is removed from the opening 313 to separate the head cover 31, so that the head cover 31 can be completely removed, and after the head cover 31 is removed, the head of the rat can move within a certain range (i.e., between the fixing posts 32 on both sides).
Step 6, as shown in fig. 3, the headgear 31 is fixed again after the injection of the medicine is finished. Specifically, the method comprises the following steps: the operation port 311 is sleeved into the periphery of a connecting hose of equipment such as a syringe pump and the like and a micro-injection device through the opening 313; then, the operation hole 311 and the fixing head cover 31 are closed in sequence according to step 3.
After the rat head is stably fixed again, the injection inner tube 54 is sequentially removed, the catheter inner core 52 is inserted, and the catheter cap 53 is screwed on. After the injection device is restored, the rat fixing devices are sequentially disassembled.
It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the equivalent embodiment without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (10)
1. A rat brain is rat fixing device for microinjection which characterized in that includes:
a base;
the trunk fixing structure is connected to the base and comprises a wrapping surface layer used for wrapping the trunk of the rat and an elastic ring assembly connected to the wrapping surface layer and used for fixing the limbs of the rat, and the middle part of the wrapping surface layer is fixed to the base;
the head fixing structure is detachably connected to the base and comprises a head sleeve for covering the head of the rat, and an operation opening corresponding to the position of the rat head injection device is formed in the head sleeve.
2. A rat fixing device for cerebral micro-injection of a rat according to claim 1, wherein first connecting portions are respectively provided on both sides of the wrapping surface layer, one end of the first connecting portion is fixed to the side portion of the wrapping surface layer, the other end extends out of the wrapping surface layer, and first fixing portions for connecting the two first connecting portions are respectively provided on both sides of the base.
3. A rat fixing device for micro injection into the brain of a rat as claimed in claim 2, wherein the wrapping surface layer is an elastic surface layer, an elastic band is provided on the wrapping surface layer, the middle part of the elastic band is fixed with the middle part of the wrapping surface layer, two side parts of the elastic band respectively extend out of the wrapping surface layer along two sides of the wrapping surface layer, and two side parts of the elastic band are respectively detachably connected to the two first fixing parts.
4. A rat brain microinjection rat fixation apparatus as claimed in claim 2, wherein the two first connection portions are fixed to opposite sides of the wrapping cover in a staggered manner.
5. A rat brain microinjection rat fixing device according to claim 1, wherein the elastic ring assembly includes four elastic rings, and the four elastic rings are in one-to-one correspondence with the positions of the limbs of the rat.
6. The rat brain microinjection rat fixing device according to claim 1, wherein second connecting portions are provided at both sides of the head cover, and second fixing portions for connecting the second connecting portions are provided at both sides of the base, respectively.
7. The rat brain micro-injection rat fixing device according to claim 1 or 6, wherein an opening communicating with the operation port is provided on the head cover, and a sealing belt is movably connected to both sides of the opening.
8. The rat fixing device for cerebral microinjection of claim 7, wherein the head fixing structure further comprises two head side fixing posts movably connected to the base, and a first sliding slot is formed in the base at a position corresponding to the neck of the rat along the width direction of the rat and is used for allowing the two head side fixing posts to slide.
9. A rat fixing device for micro-injection into the brain of a rat as claimed in claim 1, further comprising a tail fixing structure, wherein the tail fixing structure comprises two tail side fixing posts movably connected to the base, and two second sliding grooves for the two tail side fixing posts to slide are respectively formed on the base at positions corresponding to two sides of the tail root of the rat along the length direction of the rat.
10. The rat brain microinjection rat fixing apparatus according to claim 1, wherein a sponge pad is provided on the base at a position corresponding to the head of the rat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922273514.5U CN211534965U (en) | 2019-12-16 | 2019-12-16 | Rat brain micro-injection rat fixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922273514.5U CN211534965U (en) | 2019-12-16 | 2019-12-16 | Rat brain micro-injection rat fixing device |
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| CN211534965U true CN211534965U (en) | 2020-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469430A (en) * | 2022-03-02 | 2022-05-13 | 六安市人民医院 | Cheek acupuncture rat fixer |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469430A (en) * | 2022-03-02 | 2022-05-13 | 六安市人民医院 | Cheek acupuncture rat fixer |
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