JY/T 0164-2011Eyeball Anatomy Model (English PDF)

3.1 Naming rules

The model name of the product is JY 0026-1991.

3.2 Nomenclature

The eyeball anatomical model is named.

SM - YQJP - CR - 145 Product front and rear diameter, 145mm Product Feature Code, Adult Product name Pinyin prefix, "eyeball anatomy" Product model classification code, biological model Model example.

SM-YQJP-CR-145 represents a biological model, an anatomical model of an eyeball, an adult, and anterior and posterior diameter of 145mm.

4.1 Use environmental conditions

Temperature. -10 °C ~ 40 °C, relative humidity. not more than 90%.

4.2 Anatomy

4.2.1 General requirements

4.2.1.1 The product is an enlarged model of an adult eyeball. The front and rear outer diameters are 145 mm ± 3 mm.

4.2.1.2 The eyeball is slightly spherical, with the cornea at the front and the sclera at the back, and the iris and pupil through the cornea.

4.2.1.3 Six extraocular muscle stumps, optic nerves, vortex veins, long posterior ciliary artery (iris artery) and short posterior ciliary artery (pulse) Choroidal artery).

4.2.1.4 Make the median horizontal section of the eyeball wall through the front and back poles of the eyeball, showing the three layers of the eyeball wall, the outer membrane, the middle membrane and the inner membrane. Eyeball the three layers of the upper half of the wall are trapezoidal sections from the outside to the inside, and show the structure of each layer.

4.2.1.5 The cornea and iris should be completely displayed, and both the lens and vitreous body in the eyeball can be removed separately.

4.2.1.6 The morphological structure, position, proportion, and color of the muscles, membrane walls, blood vessels, and nerves of each part shall be correct and natural.

4.2.2 Specific requirements

4.2.2.1 Sectional structure of the eyeball wall

4.2.2.1.1 The outer membrane shows the following structure.

a) The cornea. it accounts for the first 1/6 of the adventitia. Its external dimensions are shown in Figure 1. It should be colorless and transparent. The height H of the enlarged cornea is. 15 mm ± 1mm, outer diameter Phi. 70mm ± 1mm, thickness t. 2.5mm ± 1mm;

figure 1

b) Sclera. Occupying the last 5/6 of the adventitia, the sclera and sinus should be displayed at the junction of the sclera and the cornea. Sclera thickness the menstruation is. 6mm ± 1mm, and the thickness after the eye muscle attachment and the tendon fusion is. 5mm ± 1mm.

4.2.2.1.2 The membrane shall show the following structure.

a) Iris. It is located at the front of the middle membrane, behind the cornea, and is disc-shaped. The diameter of the circular pupil in the center is 24mm ± 1mm. Anterior chamber the deepest point (that is, the center of the inner edge of the cornea to the middle of the pupil) is. 20mm ± 5mm;

b) Ciliary body. In front of the choroid, the structural features of the ciliary ring, ciliary process, and ciliary zonula inside the ciliary body should be correctly displayed and the relationship between them, in which 70 to 80 ciliary processes, arranged in a radial pattern. The ciliary muscle fibers should be oriented correctly, its connection with the sclera should be accurate;

c) Choroid. Located between the sclera and retina, it should show structural features rich in blood vessels and pigments.

4.2.2.1.3 Endometrium. showing the optic disc and macula of the retina and its back, as well as retinal blood vessels.

The retina is the innermost layer of the eyeball wall, which is closely attached to the inner surface of the choroid. The optic disc is located at the back of the eyeball (fundus), with a diameter of O10mm ± 1mm; the macula is located slightly below the temporal side of the optic disc, and is similar in size to the optic disc. Optic disc the distance between the center point and the macular fovea is 21 mm ± 3 mm. Retinal blood vessels should show that the central retinal artery has penetrated the optic disc.

Main branches, including the superior and inferior arterioles of the nasal side of the retina and their accompanying small veins of the same name Vein of the same name. The distribution and orientation of blood vessels, as well as the mismatch between the central arteries in the intraretinal branches and the absence of blood vessels in the macula should be shown correctly Structural features.

4.2.2.2 Lenses and vitreous

4.2.2.2.1 Lens. biconvex lens shape, colorless and transparent, the external dimensions are shown in Figure 2. There is a ciliary band between the lens and the ciliary process.

even. The height H1 of the first half of the enlarged lens is. 15mm ± 1mm, the outer diameter Phi is. 51mm ± 1mm; the height of the second half H2 is. 7.5mm ± 1mm. Lens edges are round and blunt.

figure 2

4.2.2.2.2 Vitreous body. colorless and transparent, it should be filled between the lens and the retina.

4.2.2.3 The cross-section of the optic nerve should clearly show the three-layer structure of the capsule.

4.2.2.4 The following parts of the model shall be affixed with name or number tags. cornea, sclera, iris, choroid, retina, optic disc, macular, crystal Corpus callosum, vitreous body, ciliary ring, ciliary process, optic nerve, vortex vein.

4.3 Materials and processes

4.3.1 The model should be made of rigid thermoplastics, and glass fiber reinforced plastics (FRP) or fragile and deformable materials should not be used.

material.

4.3.2 The content of heavy metals in the coating of the model shall conform to GB 5.2.5.4 of GB 21746-2008.

4.3.3 The cornea, iris, lens and vitreous should be inlaid and stable, and easy to disassemble.

4.3.4 The cornea, lens and vitreous are transparent, and there should be no fog spots and stones.

4.3.5 The cut surface should be flat, and the structures on both sides of the cut surface should be corresponding and accurate, and there should be no obvious misalignment and gaps in the seam after assembly.

4.3.6 The color of the structure of each part should be correct and clear, the spraying transition should be natural, and there should be no spillage. Colors and sprays allowed the transition is slightly defective or slightly inaccurate.

4.3.7 The product shall also comply with JY 0001-2003 sections 5.2, 6.9, 6.12, 6.27, 7.4.3, 7.7 and 9.1 to 9.6.

4.4 Environmental test

4.4.1 The product shall be tested for temperature, humidity, and free drop in accordance with JY 0213-1994 Section 3.1, and shall be subjected to a drop test in an unpackaged state.

4.4.2 The drop height of the drop test in the non-packed state shall be 1 m, and the drop surface shall be the largest surface of the model outline.

If there is a stand, it should not be included.

5.1 Relevant dimensions

Measured with a steel ruler with a division value of 1mm

5.2 Anatomy, appearance and workmanship

Sensory test

5.3 Environmental test

5.3.1 Temperature, humidity and free fall test According to JY 0213-1994 Section 4.1, 4.2, 4.6.

5.3.2 Drop test in unpacked state. Lay a wooden board with a thickness of 20mm ± 3mm on the cement floor. The board should be rigid with the cement floor contact. During the test, the model's falling surface is downward, and it will fall freely from a height of 1m. Once tested, it shall meet 4.4.2.

6.1 Inspection classification

The inspection of this product is divided into factory inspection, type recommendation and quality supervision inspection.

6.2 Inspection items

The inspection items and methods of factory inspection and type inspection are shown in Table 1.

Table 1 Inspection items and methods of factory inspection and type inspection

Item No. Inspection Item Standard Provisions Factory Inspection Type Inspection

1 General requirements 4.2.1 -

2 Specific requirements 4.2.2 -

3 Materials and processes 4.3 -

4 Environmental test 4.4--Note. "-" in the table means all inspection items, and "-" means no inspection items.

6.3 Sampling method

6.3.1 The factory inspection shall be batched according to the natural batch of delivery, and the type inspection shall be batched according to the stock array.

6.3.2 During the factory inspection, all the inspection items shall be inspected first, and the sampling inspection items shall be inspected among the qualified products.

6.3.3 The factory inspection shall be determined according to the unqualified criterion of a single sample.

6.4 Non-conformance determination

6.4.1 The judgment of sampling inspection shall be in accordance with JY 0002.

6.4.2 The failure criterion of a single sample shall be in accordance with JY 0002.

6.4.3 When inspecting all inspection items, it shall be judged according to the unqualified criterion of a single sample.

6.4.4 Correct anatomical structure and position are the main performance indicators.

6.5 Review rules

6.5.1 Unqualified products can be submitted for inspection again after rework.

6.5.2 If the cause of the batch failure is a sampling inspection item, the item shall be changed to a full inspection during the re-inspection.

6.6 Quality supervision inspection

Quality supervision and random inspection shall be in accordance with JY 0002.