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Temporomandibular joint positioning device for laboratory mouse

A temporomandibular joint and positioning device technology, which is applied in the fields of animal restraint equipment, medical science, veterinary equipment, etc., can solve the problems of unreliable experimental results, injury of experimental mice, and low experimental efficiency, so as to improve experimental efficiency and The effect of relieving pain and reducing the difficulty of operation

Active Publication Date: 2022-04-26
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a temporomandibular joint positioning device for experimental mice to solve the problems of injury to experimental mice, joint lesions, unreliable experimental results and low experimental efficiency caused by the difficulty in accurately locating the temporomandibular joints of experimental mice in the prior art. question

Method used

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  • Temporomandibular joint positioning device for laboratory mouse
  • Temporomandibular joint positioning device for laboratory mouse
  • Temporomandibular joint positioning device for laboratory mouse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] like Figure 2 to Figure 5 The shown temporomandibular joint positioning device for experimental mice includes a working board 2, on which a fixture 10 for fixing an experimental mouse is arranged, and on said working board 2, a supporting column 3 is provided, and said supporting column 3 Connect the ear hole positioning part 5, the ear hole positioning part 5 is used to insert the external auditory canal of the experimental mouse and snap into the ear hole 21 of the experimental mouse, the ear hole positioning part 5 is provided with a connecting bar 8, and the connecting bar 8 is connected There is a buckle 9 for snapping to the root of the zygomatic arch 23 of the experimental rat.

[0049] In this embodiment, the operation difficulty can be reduced by combining the work board, which is suitable for novices. When the workload is heavy or skilled hands are required to complete the operation quickly, the ear hole positioning member 5, connecting strip 8 and buckle 9 ...

Embodiment 2

[0058] On the basis of Example 1, such as Figure 2 to Figure 5 As shown, the ear hole positioning member 5 is provided with a third sliding groove 53, the guide ring handle 61 can move in the third sliding groove 53, and the third sliding groove 53 is connected with a third locking groove 51 , the third locking groove 51 is provided with a third locking member 52, and the third locking member 52 is used to fix the position of the guide ring handle 61 in the third slide groove 53; The support column 3 is provided with a cantilever 4, and the cantilever 4 is provided with a collar 41 for being sleeved on the support column 3. The collar 41 is threaded with a first locking member 31. A locking member (31) is used to fix the position of the collar 41 on the support column 3; the cantilever 4 is provided with a second chute 42, and the ear hole positioning member 5 can be positioned in the second chute 42, the second chute 42 is communicated with a second locking groove 44, and a...

Embodiment 3

[0063] On the basis of the above-mentioned embodiments, a guide ring handle 61 is provided on the ear hole positioning member 5, and an injection guide ring 6 is connected to the guide ring handle 61, and the bottom of the injection guide ring 6 is used for embedding the experimental 24 in the joint cavity of the rat.

[0064] In one or more embodiments, the bottom end of the injection guide extends down and beyond the guide handle to form a raised portion 69 .

[0065] In this example, if figure 1 with Figure 9 As shown, after the positions of the ear hole positioning member 5 and the buckle 9 are fixed, the position of the depressed joint cavity can be quickly and conveniently determined by using the bottom of the injection guide ring 6, that is, the position between the condyle 22, the root of the zygomatic arch 23, and the ear hole 21. area, and can directly embed the bottom of the injection guide ring 6 into the joint cavity 24 to form a fixed point, thereby forming a ...

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Abstract

A temporomandibular joint positioning device for a laboratory mouse comprises a working plate, the working plate is provided with a fixing piece and a supporting column, the supporting column is connected with an earhole positioning piece, the earhole positioning piece is used for being inserted into an external auditory canal of the laboratory mouse and clamped to an earhole of the laboratory mouse, and the earhole positioning piece is provided with a connecting strip. The connecting strip is connected with a buckle used for being clamped to the root of the zygomatic arch of the laboratory mouse. According to the device, the ear hole position can be positioned through the ear hole positioning piece, the zygomatic arch and the root of the zygomatic arch of the laboratory mouse can be quickly positioned, the relative position of the cheekbone and the skin can be fixed at the same time through the buckle, it is ensured that the whole device is fixed through the external auditory canal and the cheekbone, and then important bony anatomical points are projected on the body surface of the laboratory mouse; the skeletal marking points are indirectly positioned on the body surface, it is ensured that the positions during operation and injection do not obviously move along with skin displacement, articular cavity positioning is accurate, repeatability is high, and the reliability of experimental results and the experimental efficiency are remarkably improved.

Description

technical field [0001] The invention relates to the field of laboratory mouse test equipment, in particular to a temporomandibular joint positioning device for laboratory mice. Background technique [0002] The temporomandibular joint is the most complex joint in the human body, including the articular surface of the temporal bone, the articular disc, the condyle, the joint capsule, and the articular ligament. The left and right linkage of the temporomandibular joint supports jaw movements such as chewing, swallowing, language and some expressions. Compared with other joints in the body, the temporomandibular joint has different morphological, functional, biomechanical and biological properties and bears only limited load-bearing capacity. [0003] Temporomandibular joint disorder (TMD) is the most common disease in the oral and maxillofacial region. The main clinical manifestations are pain in the joint area, joint snapping during exercise, and mandibular movement disorder...

Claims

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Application Information

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IPC IPC(8): A61D3/00
CPCA61D3/00A61D2003/003
Inventor 祁荷栩方婕赵志河郑小兰张越
Owner SICHUAN UNIV
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