Bausch Health has been granted a patent for implantable corneal and intraocular implants that can improve a patient’s vision. The implant includes a mask with an aperture that allows all visible light to pass through, and a transition portion that can switch between different levels of opacity using a controllably variable absorbance feature. The mask is made of a photochromic polymer that can respond to external stimuli and maintain its opacity level even after the stimulus is removed. GlobalData’s report on Bausch Health gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Bausch Health, Cancer treatment biomarkers was a key innovation area identified from patents. Bausch Health's grant share as of September 2023 was 55%. Grant share is based on the ratio of number of grants to total number of patents.
Implantable corneal and intraocular mask with controllable opacity
A recently granted patent (Publication Number: US11771552B2) describes a method for viewing an eye using an implant made of a photochromic polymer mask. The implant has a transition portion that can switch between two degrees of opacity in response to an external stimulus. Once the transition portion is switched to the second degree of opacity, it remains locked in that state until another application of the external stimulus.
The method involves viewing the back of the eye, which can be done using a camera. The camera is configured to illuminate the eye with a wavelength of light that will not cause the transition portion to switch between degrees of opacity. Infrared light is specifically mentioned as a suitable wavelength.
To switch the transition portion between degrees of opacity, an external stimulus is applied. This stimulus can be provided by a laser or other sources of light, such as ultraviolet light or visible light. Heat, applied via ultrasonic energy, is also mentioned as a possible external stimulus.
The transition portion of the implant is substantially opaque in the first degree of opacity and substantially colorless in the second degree of opacity. The patent also mentions that the transition portion can be controlled by altering the chain length or cross-link density of the polymer, allowing for control of the glass transition temperature.
This patent provides a method for viewing the eye using an implant with a photochromic polymer mask. By controlling the external stimulus, the transition portion of the implant can be switched between degrees of opacity, allowing for clear visualization of the eye. The use of a camera and specific wavelengths of light, such as infrared, ensures that the transition portion remains in the desired state during the viewing process. The patent also highlights the ability to control the glass transition temperature of the polymer, providing further flexibility in the functionality of the implant.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies
