CN215306957U

CN215306957U - Vertebral plate drag hook for animal experiment

Info

Publication number: CN215306957U
Application number: CN202120737810.0U
Authority: CN
Inventors: 宋兴华
Original assignee: Shunde Hospital Affiliated To Jinan University Foshan Shunde Second People's Hospital Foshan Shunde Fengyaojing Memorial Hospital
Current assignee: Shunde Hospital Affiliated To Jinan University Foshan Shunde Second People's Hospital Foshan Shunde Fengyaojing Memorial Hospital
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-12-28
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a vertebral plate drag hook for animal experiments, which comprises a fixed frame and a hook rod, wherein the left side and the right side of the fixed frame are both provided with the ear rod, the upper side and the lower side of the ear rod are both provided with clamping plates, the left side and the right side above the fixed frame are both provided with slide rods, slide rod grooves are arranged outside the slide rods, a hook rod ring is arranged above the slide rod grooves, the hook rod is arranged on the inner side of the hook rod ring, the lower part of the hook rod is connected with an A panel, the lower part of the A panel is connected with a B panel, the lower part of the B panel is connected with a tip part, a hook rod clamp is arranged above the hook rod, a first knob is arranged above the hook rod clamp, the front end of the hook rod ring is provided with a second knob, and a transverse shaft is arranged inside the hook rod ring. This a vertebral plate drag hook for animal experiments is provided with the hook stick, through holding down the hook stick of two sides, can pull out the muscle soft tissue of vertebra side to can fully show bilateral vertebral plate etc. simultaneously, the operation of the experiment of being convenient for goes on.

Description

Vertebral plate drag hook for animal experiment

Technical Field

The utility model relates to the technical field of vertebral plate drag hooks, in particular to a vertebral plate drag hook for animal experiments.

Background

In the process of completing human surgery, various drag hooks such as thyroid drag hook, big and small S drag hook, abdominal cavity drag hook, rake drag hook, automatic opening drag hook, ox horn-shaped drag hook, vertebral plate drag hook and the like are provided, and various drag hooks play a key role in smoothly performing the surgery.

The vertebral plate drag hook that current animal experiments were used is when accomplishing the spinal cord experiment, like when making the spinal cord half-cut model, easily arouses the limbs below the half-cut plane to twitch because of nervous stimulation, drives the aversion of backbone after that, influences the effect of experiment at last, can not be fine satisfies people's user demand, to above-mentioned condition, carries out technical innovation on current vertebral plate drag hook basis for the animal experiments.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vertebral plate retractor for animal experiments, which aims to solve the problems of the background technology, such as that when a spinal cord hemisection model is manufactured, limbs below a hemisection plane are easy to twitch due to nerve stimulation, then the vertebral column is driven to shift, the effect of the experiment is influenced finally, and even the experiment fails.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a vertebral plate drag hook for animal experiments, includes mount and hook rod, the left and right sides of mount all settles there is the ear rod, and the upper and lower both sides of ear rod all install the grip block, the position that the horizontal central line of ear rod was kept away from to the grip block is connected with fastening spring, the internally mounted of mount has the jaw to hold in the palm, the slide bar is all installed to the left and right sides of mount top, and the outside of slide bar is provided with the slide bar groove, the hook rod ring is installed to the top in slide bar groove, the hook rod is installed in the inboard in hook rod ring, the below of hook rod is connected with the A panel, and the below of A panel is connected with the B panel, the below of B panel is connected with the pointed end portion. The hook stick card is installed to the top of hook stick, and the top of hook stick card installs first knob, the second knob is installed to the front end of hook stick ring, the internally mounted of hook stick ring has the cross axle.

Preferably, the jaw support coincides with the vertical center line of the fixing frame, and the jaw support and the fixing frame are parallel to each other.

Preferably, the clamping plate forms an elastic structure with the ear bars through the fastening springs, the ear bars are symmetrically distributed about the vertical center line of the fixing frame, and the ear bars and the jaw supports are parallel to each other.

Preferably, the structure of the hook rod is a cylindrical structure, the maximum cross section of the longitudinal axis of the hook rod is positioned on the same plane with the panel A, the panel B is fixedly connected with the tip end, and the included angle between the panel A and the panel B ranges from 90 degrees to 130 degrees.

Preferably, a clamping structure is formed between the hook rod and the hook rod clamp, a rotating structure is formed between the hook rod clamp and the hook rod ring through the transverse shaft, the rotating angle range of the hook rod clamp is 0-180 degrees, and the second knob is in threaded connection with the transverse shaft.

Preferably, the hook rod forms a sliding structure through the sliding rod groove and the sliding rod, the sliding rod groove and the sliding rod are both triangular structures, and the sliding rods are symmetrically distributed about the vertical center line of the fixed frame.

Compared with the prior art, the utility model has the following beneficial effects:

1. the jaw support is arranged, so that the jaw of an experimental animal can be conveniently placed, the jaw support can be matched with the fixing frame to limit the experimental animal in the fixing frame, the position of the experimental animal can be limited, the clamping plates on the upper side and the lower side can be close to the ear bar through the fastening spring to clamp the ear bar, the position of the ear bar can be adjusted and fixed, the ear of the experimental animal can be limited through the ear bar, and the head of the experimental animal can be fixed through the matched use of the ear bar and the jaw support;

2. the hook rod with the cylindrical structure can be more convenient for the manual operation of experimenters, the muscle soft tissue beside the vertebra can be retracted by pressing down the hook rods on the two sides, so that vertebral plates on the two sides can be fully exposed, the operation of the experiment is convenient to carry out, the tip end can be propped against the outer sides of articular processes on the two sides, the bony fixation of the vertebral column is formed by the fixation of the hook rods, the hook rods can be clamped with the hook rod clamps, the hook rod clamps can rotate relatively between the transverse shaft and the hook rod rings, so that the angle of the hook rod clamps can be adjusted as required, the hook rod clamps can be locked by the second knob, the problem that when the existing vertebral plate drag hook for animal experiments finishes the spinal experiments, such as when a spinal hemisection model is manufactured, the limbs below the hemisection plane are easy to be drawn due to the stimulation of nerves, and then the displacement of the spinal column is driven is avoided, finally, the effect of the experiment is influenced;

3. the slide bar groove with the triangular structure can be mutually suitable with the slide bar with the triangular structure, so that the practicability of the vertebral plate drag hook for animal experiments is greatly improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a right-view structural diagram of the fixing frame of the present invention;

FIG. 3 is a schematic view of the structure of the hook bar of the present invention;

fig. 4 is a schematic view of the connection structure of the hook rod clip and the hook rod ring of the present invention.

In the figure: 1. a fixed mount; 2. a jaw support; 3. a fastening spring; 4. a clamping plate; 5. an ear stick; 6. a slide bar; 7. a slide bar slot; 8. hooking a rod card; 9. hooking the rod; 10. a hook rod ring; 11. a, a panel; 12. a panel B; 13. a tip portion; 14. a first knob; 15. a horizontal axis; 16. a second knob.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a vertebral plate drag hook for animal experiments comprises a fixed frame 1 and a hook rod 9, wherein the left side and the right side of the fixed frame 1 are both provided with ear rods 5, and the upper and lower sides of the ear rod 5 are both provided with a clamping plate 4, the position of the clamping plate 4 far away from the horizontal central line of the ear rod 5 is connected with a fastening spring 3, a jaw support 2 is arranged in the fixing frame 1, the left and right sides above the fixing frame 1 are both provided with a slide bar 6, a slide bar groove 7 is arranged outside the slide bar 6, a hook rod ring 10 is arranged above the slide bar groove 7, a hook rod 9 is arranged at the inner side of the hook rod ring 10, a panel A11 is connected below the hook rod 9, a panel B12 is connected below the panel A11, a tip part 13 is connected below the panel B12, a hook rod clamp 8 is arranged above the hook rod 9, a first knob 14 is installed above the hook rod clamp 8, a second knob 16 is installed at the front end of the hook rod ring 10, and a transverse shaft 15 is installed inside the hook rod ring 10.

In the utility model: the jaw support 2 coincides with the vertical central line of the fixed mount 1, and the jaw support 2 is parallel to the fixed mount 1; jaw holds in the palm 2 can be convenient for experimental animals jaw under the placing, and jaw holds in the palm 2 and uses with the cooperation of mount 1 and can confine experimental animals to within the mount 1 to can restrict experimental animals's position.

In the utility model: the clamping plate 4 and the ear rods 5 form an elastic structure through the fastening springs 3, the ear rods 5 are symmetrically distributed about the vertical center line of the fixing frame 1, and the ear rods 5 are parallel to the jaw supports 2; can make the grip block 4 of upper and lower both sides be close to ear bar 5 through fastening spring 3, carry out the centre gripping to it to can adjust fixedly to ear bar 5's position, and then can restrict the experimental animals ear through ear bar 5, ear bar 5 can be fixed experimental animals head with the cooperation use of jaw support 2.

In the utility model: the hook rod 9 is of a cylindrical structure, the maximum section of the longitudinal axis of the hook rod 9 and the A panel 11 are on the same plane, the B panel 12 is fixedly connected with the tip end 13, and the included angle between the A panel 11 and the B panel 12 ranges from 90 degrees to 130 degrees; the hooked rod 9 of cylindric structure can be more convenient for experimenter's manual operation, through holding down hooked rod 9 of two sides, can pull out the muscle soft tissue other than the vertebra to can fully show bilateral vertebral plate etc. the operation of the experiment of being convenient for goes on, and pointed end 13 can support the articular process's on two sides outside, and the fixed formation through hooked rod 9 is fixed to the bony nature of backbone.

In the utility model: a clamping structure is formed between the hook rod 9 and the hook rod clamp 8, the hook rod clamp 8 forms a rotating structure through a transverse shaft 15 and a hook rod ring 10, the rotating angle range of the hook rod clamp 8 is 0-180 degrees, and the second knob 16 is in threaded connection with the transverse shaft 15; hook stick 9 can with hook stick card 8 between carry out the block, hook stick card 8 can carry out relative rotation between through cross axle 15 and hook stick ring 10, thereby can adjust the angle of hook stick card 8 as required, can carry out the locking to hook stick card 8 through second knob 16, vertebral plate drag hook of having avoided current animal experiments to use is when accomplishing the spinal cord experiment, if when making the spinal cord half-cut model, easily because nervous stimulation, arouse that the limbs below the half-cut plane are twitched, drive the aversion of backbone afterwards, influence the problem of the effect of experiment at last.

In the utility model: the hook rod 9 and the slide bar 6 form a sliding structure through the slide bar groove 7, the slide bar groove 7 and the slide bar 6 are both in a triangular structure, and the slide bars 6 are symmetrically distributed about the vertical center line of the fixed frame 1; the position of the hook rod 9 can be adjusted conveniently by matching the slide rod groove 7 with the slide rod 6, so that the applicability of the device can be improved, the slide rod groove 7 with the triangular structure can be mutually applicable to the slide rod 6 with the triangular structure, and the practicability of the vertebral plate drag hook for animal experiments is greatly improved.

The vertebral plate drag hook for animal experiments has the working principle that: firstly, the head and forelimb of an animal to be tested are placed in a fixed frame 1, the lower jaw of the animal is placed on a jaw support 2, the ear rod 5 is relatively moved to a position close to the vertical central line of the fixed frame 1 through the fastening springs 3 on the upper side and the lower side, and the ear rod 5 is inserted into the ear of the animal to be tested; secondly, the fastening spring 3 is loosened, the fastening spring 3 drives the clamping plates 4 on the upper side and the lower side to be close to the ear bars 5, so that the ear bars 5 can be clamped, the firmness of fixing the head of the experimental animal is improved, the experimental animal can be limited in the fixing frame 1 through the matching use of the ear bars 5, the jaw supports 2 and the fixing frame 1, and the position of the experimental animal can be limited; then, the hook rod 9 is slid to a proper position through the matching of the sliding rod groove 7 and the sliding rod 6, the experimental operation can be carried out on the animal, after the muscle soft tissue beside the vertebra is stripped, the tip end part 13 is abutted against the outer side of the upper articular process, the tip end part 13 can be abutted against the outer side of the upper articular process, the clamping resultant force is formed on two sides, the muscle soft tissue beside the vertebra can be kept off, the fixed spine is very powerful, the displacement of the fixed spine is prevented, the muscle soft tissue is kept off the outer side of the B panel 12, the hook rod 9 on two sides is pressed down, the hook rod 9 drives the included angle between the A panel 11 and the B panel 12 to change, the included angle between the B panels 12 on two sides can exceed 90 degrees and even reach 110 degrees, the vertebral plate can be fully exposed, and the dural sac and the spinal cord can be fully exposed by opening the vertebral plate; finally, the hook rod 9 and the hook rod clamp 8 are clamped, the position of the hook rod 9 is fixed through the first knob 14, the hook rod clamp 8 is relatively rotated on the inner side of the hook rod ring 10 through the transverse shaft 15, after the hook rod clamp is selected and rotated to a proper angle, the hook rod clamp 8 can be locked through the second knob 16, and therefore the problem that in the experimental process, due to stimulation of nerves, the limbs below a hemisecant plane are drawn, then the vertebral column is driven to shift, and the experimental effect is finally influenced is solved.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vertebral plate drag hook for animal experiments, includes mount (1) and hook stick (9), its characterized in that: the ear rod clamping device is characterized in that ear rods (5) are arranged on the left side and the right side of the fixing frame (1), clamping plates (4) are arranged on the upper side and the lower side of each ear rod (5), fastening springs (3) are connected to positions, far away from the horizontal central line of each ear rod (5), of each clamping plate (4), jaw supports (2) are arranged inside the fixing frame (1), slide rods (6) are arranged on the left side and the right side of the upper portion of the fixing frame (1), slide rod grooves (7) are formed in the outer portions of the slide rods (6), hook rod rings (10) are arranged above the slide rod grooves (7), hook rods (9) are arranged on the inner sides of the hook rod rings (10), an A panel (11) is connected to the lower portion of the A panel (11), a B panel (12) is connected to the lower portion of the B panel (12), pointed end portions (13) are connected to the lower portion of the B panel (12), and hook rod clamps (8) are arranged above the hook rods (9), and a first knob (14) is arranged above the hook rod clamp (8), a second knob (16) is arranged at the front end of the hook rod ring (10), and a transverse shaft (15) is arranged inside the hook rod ring (10).

2. The laminectomy retractor of claim 1, wherein the retractor is further characterized in that: the jaw support (2) coincides with the vertical center line of the fixing frame (1), and the jaw support (2) is parallel to the fixing frame (1).

3. The laminectomy retractor of claim 1, wherein the retractor is further characterized in that: the clamping plate (4) forms an elastic structure between the fastening spring (3) and the ear rod (5), the ear rod (5) is symmetrically distributed about the vertical central line of the fixing frame (1), and the ear rod (5) and the jaw support (2) are parallel to each other.

4. The laminectomy retractor of claim 1, wherein the retractor is further characterized in that: the structure of hook stick (9) is cylindric structure, and the biggest cross-section of the axis of ordinates of hook stick (9) is in the coplanar with A panel (11), and is fixed connection between B panel (12) and pointed end portion (13), and the contained angle scope between A panel (11) and B panel (12) is 90-130 simultaneously.

5. The laminectomy retractor of claim 1, wherein the retractor is further characterized in that: the hook rod (9) and the hook rod clamp (8) form a clamping structure, the hook rod clamp (8) forms a rotating structure through the cross shaft (15) and the hook rod ring (10), the rotating angle range of the hook rod clamp (8) is 0-180 degrees, and the second knob (16) is in threaded connection with the cross shaft (15).

6. The laminectomy retractor of claim 1, wherein the retractor is further characterized in that: the hook rod (9) forms a sliding structure with the sliding rod (6) through the sliding rod groove (7), the sliding rod groove (7) and the sliding rod (6) are both of a triangular structure, and the sliding rods (6) are symmetrically distributed about the vertical center line of the fixed frame (1).