CN219354243U

CN219354243U - Device for constructing intervertebral disc degeneration model by adjusting mechanical pressure

Info

Publication number: CN219354243U
Application number: CN202320412915.8U
Authority: CN
Inventors: 贾治伟; 文天林; 刘东华; 王强; 殷实; 唐昊; 张陇豫; 谢宗均
Original assignee: Dongzhimen Hospital Of Beijing University Of Chinese Medicine
Current assignee: Dongzhimen Hospital Of Beijing University Of Chinese Medicine
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-07-18
Anticipated expiration: 2033-02-27

Abstract

The utility model discloses an intervertebral disc degeneration model device capable of adjusting mechanical pressure, which relates to the technical field of intervertebral disc model experiments and comprises a first fixed ring and a second fixed ring, wherein a threaded rod is arranged between the first fixed ring and the second fixed ring, a movable ring is arranged between the first fixed ring and the second fixed ring, a pressure device is movably arranged between the movable ring and the second fixed ring, fixed blocks are fixedly arranged on the first fixed ring and the movable ring, a sliding groove is formed in the fixed blocks, and a fixed needle is slidably arranged in the sliding groove.

Description

Device for constructing intervertebral disc degeneration model by adjusting mechanical pressure

Technical Field

The utility model belongs to the field of intervertebral disc model experiments, and particularly relates to an intervertebral disc degeneration model building device capable of adjusting mechanical pressure.

Background

In order to further clarify the relationship between the load and the disc degeneration, as early as the 90 th century, researchers have installed a loading device on the coccyx of an experimental animal mouse to realize experimental study of loading of the disc.

The Chinese patent with the patent number of CN112022412A discloses a pressure-controllable annular pressurizing device for a rat tail intervertebral disc, which comprises a fixed assembly, a controllable pressurizing assembly, a pressure detecting assembly and an in-situ display assembly; the fixing component comprises a first annular fixing piece and a second annular fixing piece; a pair of side lug type fixing seats and/or a pair of annular lug type fixing seats are arranged on each fixing sheet; the controllable pressing component comprises a fixed screw; one end of the fixed screw rod is fixedly connected with the first fixing piece, and after the other end of the fixed screw rod penetrates through the second fixing piece, a spring and an adjusting nut are sleeved; the pressure detection assembly comprises a pressure sensor; the in-situ display assembly comprises a pressure sensor display module with a display screen; the signal output end of the pressure sensor is correspondingly connected with the signal input end of the pressure sensor display module. The device adopts a flaked fixed assembly structure and a light controllable pressing assembly, takes a mouse as an experimental object, continuously, stably and visually in situ in the pressing process, and can meet the requirements of multiple groups of simultaneous performance and test data comparison.

In the clinical experiment process, the spring pressurization and computer pressure measurement mode are adopted, so that the cost is high, the method is only suitable for rats, and the practicability is affected.

Disclosure of Invention

The utility model provides an intervertebral disc degeneration model device is constructed to adjustable mechanical pressure for solve clinical laboratory in-process, because it adopts the mode of spring pressurization and computer pressure measurement, the expense is high, and only is applicable to the rat, influences the technical problem of its practicality.

In order to solve the technical problems, the device for constructing the intervertebral disc degeneration model by adjustable mechanical pressure comprises a first fixed ring and a second fixed ring, a threaded rod is arranged between the first fixed ring and the second fixed ring, a movable ring is arranged between the first fixed ring and the second fixed ring, a pressure device is movably arranged between the movable ring and the second fixed ring, fixed blocks are fixedly arranged on the first fixed ring and the movable ring, a sliding groove is formed in the fixed blocks, and a fixed needle is slidably arranged in the sliding groove.

Preferably, the pressure device comprises a spring air bag, the spring air bag is movably arranged on the threaded rod, an air pipe is fixedly arranged on the outer side of the spring air bag, a rubber air bag is fixedly arranged on the other end of the air pipe, check valves are fixedly arranged on two sides of the rubber air bag, and a pressure gauge is fixedly arranged in the middle of the air pipe.

Preferably, the first fixing ring, the moving ring, the spring air bag and the second fixing ring are all provided with through holes, and the threaded rod penetrates through the through holes.

Preferably, nuts are arranged on two sides of the first fixing ring and the second fixing ring, and the nuts are meshed with the threaded rods.

Preferably, the opening directions of the non-return valves at the two sides are opposite.

Compared with the prior art, the utility model has the following advantages:

according to the intervertebral disc degeneration model device capable of adjusting mechanical pressure, the pressure device is arranged, when the pressure device is used for pressurizing, the rubber air bags are pressed, the check valves are arranged on the two sides of the rubber air bags, the openings of the check valves are opposite, when the pressure device is used for pressurizing, gas in the rubber air bags enters the air pipes, so that the spring air bags are expanded, the rubber air bags are loosened, the gas in the air pipes cannot flow back due to the action of the check valves, the external gas enters the rubber air bags through the bottom check valves under the action of negative pressure, the spring air bags can be continuously pressurized, the spring air bags squeeze the moving ring, and then an experimental model is completed.

Drawings

FIG. 1 is a block diagram of an adjustable mechanical pressure construction intervertebral disc degeneration model device of the present utility model;

FIG. 2 is a block diagram of a first retaining ring in an adjustable mechanical pressure build disc degeneration model device in accordance with the present utility model;

FIG. 3 is a block diagram of a pressure device in an adjustable mechanical pressure build intervertebral disc degeneration model device according to the present utility model;

reference numerals in the drawings: 1. a first fixing ring; 2. a moving ring; 3. a pressure device; 4. a threaded rod; 5. a second fixing ring; 6. a nut; 7. a through hole; 8. a fixed block; 9. fixing the needle; 31. a spring air bag; 32. an air pipe; 33. a pressure gauge; 34. a non-return valve; 35. a rubber air bag.

Detailed Description

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides an adjustable mechanical pressure builds intervertebral disc and moves variable model device, includes first solid fixed ring 1 and second solid fixed ring 5, is equipped with threaded rod 4 between first solid fixed ring 1 and the second solid fixed ring 5, is equipped with movable ring 2 between first solid fixed ring 1 and the second solid fixed ring 5, movable mounting pressure device 3 between movable ring 2 and the second solid fixed ring 5, fixed mounting fixed block 8 on first solid fixed ring 1 and the movable ring 2, sets up the spout in the fixed block 8, sliding mounting fixed needle 9 in the spout.

Further, the pressure device 3 comprises a spring air bag 31, the spring air bag 31 is movably arranged on the threaded rod 4, an air pipe 32 is fixedly arranged on the outer side of the spring air bag 31, a rubber air bag 35 is fixedly arranged on the other end of the air pipe 32, check valves 34 are fixedly arranged on two sides of the rubber air bag 35, and a pressure gauge 33 is fixedly arranged in the middle of the air pipe 32.

Further, the first fixing ring 1, the moving ring 2, the spring air bag 31 and the second fixing ring 5 are all provided with through holes 7, and the threaded rod 4 penetrates through the through holes 7.

Further, nuts 6 are arranged on two sides of the first fixing ring 1 and the second fixing ring 5, and the nuts 6 are meshed with the threaded rods 4.

Further, the opening directions of the side check valves 34 are opposite.

Working principle:

during the experiment, the experimental part of the sample is inserted from the first fixed ring 1, removed from the second fixed ring 5, two fixed needles 9 are inserted into the sliding groove and nailed into the experimental part, by arranging the pressure device 3, during the pressurization, the two sides of the rubber air bag 35 are provided with the check valves 34 by pressing the rubber air bag 35, the openings of the check valves 34 are opposite, and when the pressure is applied, the gas in the rubber air bag 35 enters the air pipe 32, so that the spring air bag 31 is expanded, the rubber air bag 35 is loosened, the gas in the air pipe 32 can not flow back due to the action of the check valves 34, the external gas enters the rubber air bag 35 through the bottom check valve 34 under the action of the negative pressure, the repeated circulation can continuously pressurize the spring air bag 31, the spring air bag 31 extrudes the moving ring 2, and then the experimental model is completed.

Claims

1. An intervertebral disc degeneration model device is constructed to adjustable mechanical pressure, includes first solid fixed ring (1) and second solid fixed ring (5), its characterized in that: threaded rods (4) are arranged between the first fixing ring (1) and the second fixing ring (5), a movable ring (2) is arranged between the first fixing ring (1) and the second fixing ring (5), a pressure device (3) is movably installed between the movable ring (2) and the second fixing ring (5), a fixing block (8) is fixedly installed on the first fixing ring (1) and the movable ring (2), a sliding groove is formed in the fixing block (8), and a fixing needle (9) is slidably installed in the sliding groove.

2. The intervertebral disc degeneration model device with adjustable mechanical pressure construction according to claim 1, wherein the pressure device (3) comprises a spring air bag (31), the spring air bag (31) is movably installed on the threaded rod (4), an air pipe (32) is fixedly installed on the outer side of the spring air bag (31), a rubber air bag (35) is fixedly installed on the other end of the air pipe (32), check valves (34) are fixedly installed on two sides of the rubber air bag (35), and a pressure gauge (33) is fixedly installed in the middle of the air pipe (32).

3. The intervertebral disc degeneration model device with adjustable mechanical pressure according to claim 2, wherein the first fixed ring (1), the movable ring (2), the spring air bag (31) and the second fixed ring (5) are all provided with through holes (7), and the threaded rod (4) penetrates through the through holes (7).

4. The intervertebral disc degeneration model device with adjustable mechanical pressure according to claim 1, wherein nuts (6) are arranged on both sides of the first fixing ring (1) and the second fixing ring (5), and the nuts (6) are meshed with the threaded rod (4).

5. An adjustable mechanical pressure building intervertebral disc degeneration model device according to claim 2, wherein the opening directions of the non-return valves (34) on both sides are opposite.