Biological membrane fixing device for eye surface
A fixing device and biofilm technology, applied in the field of medical devices, can solve the problems of fragile perforation, multiple operations, traumatic ocular surface, etc., and achieve the effect of improving the treatment effect, requiring no surgical operation, and simple operation.
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Embodiment 1
[0025] Such as Figure 1 to Figure 2 As shown, the fixation device 1 of this embodiment has a circular shape with a radian, including an upper fornix 3 and a lower fornix 4, and its radian coincides with the radian of the patient's eyeball surface and the upper and lower fornix conjunctiva. The fixing device is elliptical and is made of polymethyl methacrylate (PMMA). On the inner surface of the fixing device, that is, the side where the fixing device contacts the eyeball, there are three grooves 2 arranged radially. The groove 2 is arranged in the lower fornix.
[0026] The inner surface of the fixing device, that is, the side where the fixing device is in contact with the eyeball, can also be provided with more than 3 grooves arranged radially, such as 5 or 7; it is also possible to set only 1 in the lower fornix according to the specific conditions of the disease. groove 2.
Embodiment 2
[0028] Such as image 3 As shown, the fixation device 1 in this embodiment is annular with a radian, including an upper fornix 3 and a lower fornix 4, and its radian coincides with the radian of the patient's eyeball surface and the upper and lower fornix conjunctiva. It is elliptical and made of glass. The fixing device is in a non-airtight ring shape, that is, there is a gap 5 at the lowest part of the lower fornix 4 of the fixing device.
Embodiment 3
[0030] Such as Figure 4 or Figure 5 As shown, the fixation device 1 in this embodiment is annular with a radian, including an upper fornix 3 and a lower fornix 4, and its radian coincides with the radian of the patient's eyeball surface and the upper and lower fornix conjunctiva. It is elliptical and is made of silicone gel. The fixing device is a non-airtight ring, that is, there is a gap 5 at the lowest part of the lower fornix 4 of the fixing device. The center has a mesh structure 6, and the mesh structure 6 can adopt such as Figure 4 or Figure 5 shown in the manner.
[0031] The above-mentioned ocular surface biofilm fixation device is used for the treatment of fixed ocular surface defects of patients, and the steps are as follows:
[0032] (1) The patient lies on his back or sits with his head tilted back, and the eyelid skin is disinfected with fluorine iodine.
[0033] (2) According to the size and shape of the patient's conjunctival sac, select a suitable ase...
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