阅读说明：本技术 一种大鼠自动取脑装置 (Automatic brain device of getting of rat ) 是由 蒋莉 邹伟 唐小卿 张平 兰芳 杨三桥 于 2020-11-24 设计创作，主要内容包括：本发明涉及大鼠实验设备,具体说是一种大鼠自动取脑装置,包括底座,所述底座上竖直设有升降臂,该升降臂上水平设有横臂,该横臂端部设有机头,机头上竖直设有夹持钳和电剪,所述底座上设有可放置大鼠的操作台,所述夹持钳通过机头驱动可夹持大鼠颅骨并将大鼠抵紧在操作台上,所述电剪通过机头驱动可将大鼠颅骨与脊椎连接处剪断。本发明采用夹持钳自动夹持大鼠的颅骨,并通过电剪自动剪断大鼠颅骨与脊椎连接处,并通过辅剪剪断脑部侧面,操作人员只需挑起剪断的部位就可露出脑组织,不仅操作过程简单,可节省取脑实验的时间,提高实验效率；而且不易损伤脑组织,可保证全脑的完整性。(The invention relates to rat experimental equipment, in particular to an automatic rat brain taking device which comprises a base, wherein a lifting arm is vertically arranged on the base, a cross arm is horizontally arranged on the lifting arm, a machine head is arranged at the end part of the cross arm, clamping forceps and electric shears are vertically arranged on the machine head, an operating table capable of placing a rat is arranged on the base, the clamping forceps can clamp the skull of the rat through the driving of the machine head and tightly support the rat on the operating table, and the electric shears can cut the joint of the skull of the rat and the vertebra through the driving of the machine head. According to the invention, the clamping forceps are adopted to automatically clamp the skull of the rat, the joint of the skull of the rat and the spine is automatically cut off through the electric scissors, the side face of the brain is cut off through the auxiliary scissors, and an operator only needs to pick up the cut part to expose the brain tissue, so that the operation process is simple, the time of taking the brain for experiment can be saved, and the experiment efficiency is improved; and the brain tissue is not easy to be damaged, and the integrity of the whole brain can be ensured.)

1. The utility model provides an automatic brain device of getting of rat, includes the base, its characterized in that: the rat skull cutting device is characterized in that a lifting arm is vertically arranged on the base, a cross arm is horizontally arranged on the lifting arm, a machine head is arranged at the end part of the cross arm, clamping pincers and electric shears are vertically arranged on the machine head, an operation table capable of placing a rat is arranged on the base, the clamping pincers can clamp the rat skull and tightly support the rat on the operation table through the machine head drive, and the electric shears can cut the joint of the rat skull and the spine through the machine head drive.

2. The automatic rat brain taking device according to claim 1, wherein: the machine head comprises a case fixedly arranged on the cross arm, a sliding groove is arranged at the lower part of the case, and a transverse moving mechanism for driving the clamping pincers and the electric shears to horizontally move along the sliding groove is arranged in the case.

3. The automatic rat brain taking device according to claim 2, wherein: the clamping pliers comprise two clamping arms and a pliers seat arranged in the case and connected with the transverse moving mechanism, the pliers seat is connected with the two clamping arms through a suspension arm penetrating through the sliding groove, a lifting mechanism is arranged in the pliers seat, and the lifting mechanism drives the two clamping arms to fold or open through lifting operation.

4. The automatic rat brain taking device according to claim 3, wherein: the lifting mechanism comprises a horizontal rod and a vertical rod, wherein the horizontal rod is horizontally arranged in the clamp seat and driven by an air cylinder to lift, the vertical rod is connected with the horizontal rod and penetrates through an inner cavity of the suspension arm, a bottom rod is fixed at the bottom end of the suspension arm, two clamping arms are hinged to the bottom rod through a pin shaft, and the end parts of the two clamping arms extend into the suspension arm are connected with the lower end of the vertical rod through springs.

5. The automatic rat brain-taking device according to any one of claims 2 to 4, characterized in that: the electric shears comprise two shear blades, a moving seat connected with the transverse moving mechanism, a sliding rod connected with the moving seat and penetrating through the sliding groove, and a driving mechanism arranged at the bottom end of the sliding rod, wherein the driving mechanism drives the two shear blades to open or close.

6. The automatic rat brain taking device according to claim 5, wherein: the driving mechanism comprises a machine shell fixedly connected with the sliding rod, a main gear and a driven gear, wherein the main gear is arranged in the machine shell and driven by a motor to rotate, the driven gear is meshed with the main gear, and the main gear and the driven gear are respectively and fixedly connected with a scissor blade.

7. The automatic rat brain taking device according to claim 5, wherein: the face wall of each shear blade is provided with an auxiliary shear capable of moving up and down, and the auxiliary shear can extend into the macropore of the occiput of the rat to cut off the lateral side of the brain of the rat.

8. The automatic rat brain taking device according to claim 7, wherein: the telescopic mechanism is arranged in the box body and drives the two auxiliary shearing pieces to open or close.

9. The automatic rat brain taking device according to claim 8, wherein: the transmission mechanism comprises a rotatable driving wheel arranged in the box body and a driven wheel meshed with the driving wheel, and the driving wheel and the driven wheel are respectively and fixedly connected with an auxiliary shear blade.

10. The automatic rat brain taking device according to claim 8, wherein: an adjusting bolt which is connected with the box body and can adjust the angle of the box body is arranged through the guide groove.

Technical Field

The invention relates to rat experimental equipment, in particular to an automatic brain taking device for rats.

Background

When various experiments are performed on rats, one of the experiments is to take brain tissue. The existing brain taking operation is that an operator fixes a rat skull at the orbit position of the rat by using a hook forceps firstly, then cuts off the joint of the skull and the cervical vertebra by using a tissue scissors, then the tissue scissors respectively extend into the occipital bone big holes at the two sides of the rat, and cuts off the rat along the direction of the orbit at the same side by sticking to the bone, and the operator cuts off the side face of the brain at the orbit immediately; then the left-handed hook-holding forceps are inserted into the orbit of the rat to fix the skull, the bone at the position of the occipital foramen is directly clamped by the curved forceps, the whole brain tissue can be exposed by directly lifting, and then the brain tissue is pushed up and the cranial nerves are cut off, so that the brain tissue can be taken out. The process is manually operated, the flow is complex, the efficiency is low, brain tissues are easily damaged, and the integrity of the whole brain is difficult to ensure.

Disclosure of Invention

Aiming at the technical problems, the invention provides the automatic rat brain taking device which is simple to operate and is not easy to damage brain tissues.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an automatic brain device of getting of rat, includes the base, the vertical lifing arm that is equipped with on the base, this lifing arm upper level are equipped with the xarm, and this xarm tip is equipped with the aircraft nose, and the vertical centre gripping pincers and the electric scissors that are equipped with on the aircraft nose, be equipped with the operation panel that can place the rat on the base, but the centre gripping pincers pass through the aircraft nose drive centre gripping rat skull and support the rat tightly on the operation panel, the electric scissors can cut rat skull and vertebra junction through the aircraft nose drive.

Preferably, the machine head comprises a case fixedly arranged on the cross arm, a sliding groove is formed in the lower portion of the case, and a transverse moving mechanism for driving the clamping pincers and the electric shears to horizontally move along the sliding groove is arranged in the case.

Preferably, the clamping pliers comprise two clamping arms and a pliers seat arranged in the case and connected with the traversing mechanism, the pliers seat is connected with the two clamping arms through a suspension arm penetrating through the sliding groove, and a lifting mechanism is arranged in the pliers seat and drives the two clamping arms to close or open through lifting operation.

Preferably, the lifting mechanism comprises a horizontal rod horizontally arranged in the forceps base and driven to lift by an air cylinder and a vertical rod connected with the horizontal rod and penetrating through the inner cavity of the suspension arm, a bottom rod is fixed at the bottom end of the suspension arm, two clamping arms are hinged on the bottom rod through a pin shaft, and the end parts of the two clamping arms extending into the suspension arm are connected with the lower end of the vertical rod through springs.

Preferably, the electric shears comprise two shear blades, a moving seat connected with the traversing mechanism, a sliding rod connected with the moving seat and penetrating through the sliding groove, and a driving mechanism arranged at the bottom end of the sliding rod, wherein the driving mechanism drives the two shear blades to open or close.

Preferably, the driving mechanism includes a housing fixedly connected to the sliding rod, a master gear mounted in the housing and driven by a motor to rotate, and a slave gear engaged with the master gear, wherein the master gear and the slave gear are respectively and fixedly connected to a scissor blade.

Preferably, the face wall of each shear blade is provided with an auxiliary shear capable of moving up and down, and the auxiliary shear can extend into the macropore of the occiput of the rat to cut off the lateral side of the brain of the rat.

Preferably, a telescopic cylinder is arranged on the lower side of the casing, a guide groove is formed in each shear blade, each auxiliary shear comprises two auxiliary shear blades, a guide arm driven by the telescopic cylinder to move up and down along the guide groove, and a box body hinged with the guide arm, and a transmission mechanism is arranged in the box body and drives the two auxiliary shear blades to open or close.

Preferably, the transmission mechanism comprises a rotatable driving wheel and a driven wheel, wherein the driving wheel is mounted in the box body, the driven wheel is meshed with the driving wheel, and the driving wheel and the driven wheel are respectively and fixedly connected with an auxiliary shearing blade.

Preferably, an adjusting bolt which is connected with the box body and can adjust the angle of the box body penetrates through the guide groove.

According to the technical scheme, the clamping forceps are used for automatically clamping the skull of the rat, the joint of the skull of the rat and the spine is automatically cut off through the electric scissors, the side face of the brain is cut off through the auxiliary scissors, and an operator can expose the brain tissue only by picking up the cut part, so that the automatic operation of cutting off the brain of the rat is realized, the operation process is simple, the time of taking the brain for experiments can be saved, and the experiment efficiency is improved; and the brain tissue is not easy to be damaged, and the integrity of the whole brain can be ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the structure of the holding forceps of the present invention.

Fig. 3 is a schematic structural view of the electric shears of the present invention.

Detailed Description

The present invention will be described in detail with reference to fig. 1, 2 and 3, and the exemplary embodiments and descriptions of the present invention are provided to explain the present invention but not to limit the present invention.

The invention provides an automatic rat brain taking device which comprises a base 1, wherein a lifting arm 2 is vertically arranged on the base and can be lifted by adopting the existing air pressure or oil pressure, a cross arm 3 is horizontally arranged on the lifting arm and lifted along with the lifting arm, a machine head 4 is arranged at the end part of the cross arm, a clamping forceps 5 and an electric scissors 6 are vertically arranged on the machine head, an operating table 7 capable of placing a rat is arranged on the base, the clamping forceps can clamp the skull of the rat through the driving of the machine head and tightly support the rat on the operating table, and the electric scissors can cut the joint of the skull of the rat and the vertebra through the driving of the machine head. The invention realizes the automatic cutting of the rat brain through the holding forceps and the electric scissors.

Specifically, the machine head 4 includes a case 41 fixedly disposed on the cross arm, the case can be lifted along with the cross arm, the height of the clamping pliers and the electric shears can be conveniently adjusted, a chute 42 is disposed at the lower portion of the case, a traversing mechanism 43 for driving the clamping pliers and the electric shears to move horizontally along the chute is disposed in the case, the traversing mechanism can adopt an air cylinder, and the like, for example, the clamping pliers can be driven by one air cylinder to move horizontally, and the electric shears can be driven by another air cylinder to move horizontally, so that the horizontal position of the clamping pliers and the electric shears can be adjusted. Therefore, the invention can adjust the clamping pincers and the electric shears to the most appropriate positions by adjusting the height and the horizontal position of the clamping pincers and the electric shears, thereby facilitating the experimental operation of rats.

The clamping pincers 5 of the invention comprise two clamping arms 51 and a pincers seat 52 which is arranged in the case and connected with the transverse moving mechanism, wherein the pincers seat is connected with the two clamping arms through a suspension arm 53 which penetrates through the sliding groove, so that the clamping arms can transversely move along the sliding groove to adjust the horizontal position of the clamping pincers; the inside of the forceps base is provided with a lifting mechanism 54, the lifting mechanism drives the two clamping arms to close or open through lifting operation, and the two clamping arms close to clamp the skull of a rat. Preferably, the lifting mechanism 54 includes a cross bar 541 horizontally disposed in the caliper seat and driven by an air cylinder to lift, and a vertical bar 542 connected to the cross bar and penetrating through the inner cavity of the boom, a bottom rod 543 is fixed at the bottom end of the boom, two clamp arms are hinged to the bottom rod through a pin 544, and the ends of the two clamp arms extending into the boom are connected to the lower end of the vertical bar through springs 545. In the implementation process, the spring is obliquely arranged, so that the clamping arm is ensured to have component force along the horizontal direction. The air cylinder drives the cross rod to move upwards, the cross rod drives the vertical rod to move upwards, the two springs are pulled upwards under the action of the tension of the vertical rod, so that the upper ends of the two clamping arms are close to each other under the action of horizontal split force, and the lower ends of the two clamping arms are folded by rotating around the pin shaft, so that the skull of a rat is clamped; conversely, the lower ends of the two clamping arms can be opened, so that the skull of the rat is loosened. Because the height of the clamping pincers is adjustable, the rat can be tightly supported on the operating platform by descending the clamping pincers, and the follow-up operation is facilitated.

The electric shears 6 of the present invention comprises two shear blades 61, a moving base 62 connected with the traversing mechanism, a sliding rod 63 connected with the moving base and passing through the sliding slot, and a driving mechanism 64 arranged at the bottom end of the sliding rod, so that the horizontal position of the whole electric shears is adjustable. The drive mechanism 64 drives the two scissor blades to open or close. Specifically, the driving mechanism 64 includes a housing 641 fixedly connected to the sliding rod, a master gear 642 mounted in the housing and driven by a motor to rotate, and a slave gear 643 engaged with the master gear, wherein the master gear and the slave gear are respectively and fixedly connected to a scissor blade, so that the scissors can be folded and unfolded by rotating the two gears in opposite directions. In the implementation process, after the clamping jaws clamp the skull of a rat, the two shear blades are adjusted to two sides of the joint of the skull and the spine, and the main gear and the secondary gear are rotated to enable the two shear blades to approach and cut the joint.

The face wall of each shear blade of the invention is provided with an auxiliary shear 8 which can move up and down and can extend into the big hole of the occiput of the rat to cut off the side face of the brain of the rat so as to lift the skull to expose the brain tissue. Particularly, a telescopic cylinder such as an air cylinder is arranged on the lower side of the shell; each shear blade is provided with a guide groove 81, and the auxiliary shears are driven to move up and down by the up-and-down movement of the guide grooves. Each auxiliary shear comprises two auxiliary shearing pieces 82, a guide arm 83 driven by the telescopic cylinder to move up and down along the guide groove and a box body 84 hinged with the guide arm, wherein a transmission mechanism 85 is arranged in the box body and drives the two auxiliary shearing pieces to open or close. When the electric shears work, the auxiliary shears move upwards to the upper side of the shear blade so as to avoid influencing the shearing operation of the auxiliary shears. When the auxiliary scissors are required to be used, the auxiliary scissors are moved to the position of the occiput of the rat by driving the guide arm to move downwards along the guide groove.

The transmission mechanism 85 of the present invention comprises a rotatable driving wheel 851 installed in the box body and a driven wheel 852 engaged with the driving wheel, wherein the driving wheel and the driven wheel are respectively and fixedly connected with an auxiliary shear blade, and the driving principle is the same as the driving mechanism of the electric shears. In the implementation process, one auxiliary shearing piece extends into a big hole of the occiput of the rat, the other auxiliary shearing piece is positioned on the upper side of the brain, the two auxiliary shearing pieces are close to each other to shear the side face through the rotation of the driving wheel and the driven wheel, and the two auxiliary shearing pieces are continuously and repeatedly operated in the process that the shearing pieces horizontally move to drive the auxiliary shears to continuously horizontally move, so that the side face of the skull is sheared. In the implementation process, an adjusting bolt 9 which is connected with the box body and can adjust the angle of the box body is arranged through the guide groove, and the adjustment can be manually operated. Because the box adopts articulated mode with the guide arm, adjusting bolt box can incline to one side when the level is extended or is shortened, adjustable auxiliary shear guarantees to cut the accuracy of getting the position at the angle of horizontal plane from this. And the adjusting bolt can move along the guide slot, so that the up-and-down movement of the auxiliary shears cannot be interfered, namely, the adjusting bolt is not fastened with the shear blade when the angle is not required to be adjusted.