A laser-resistant viscoelastic composition, its preparation method and uses
By adding laser-resistant dyes to viscoelastic agents, the problem of existing viscoelastic agents failing to protect corneal endothelial cells during laser surgery is solved. This achieves laser protection and light transmittance within a specific wavelength range, reduces laser damage to intraocular tissues, and simplifies the removal process of viscoelastic agents.
CN118987369BActive Publication Date: 2025-10-31YANTAI AIBO NORD MEDICAL MATERIALS CO LTD
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Patent Information
- Application Number
- CN202410937136.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2044-07-12
AI Technical Summary
Technical Problem
Existing viscoelastic agents lack laser protection during laser surgery, cannot effectively protect corneal endothelial cells, and may cause vision damage during laser treatment.
Method used
A laser-resistant viscoelastic composition was developed, comprising a rheologically active ingredient, a laser-resistant dye, and a cosolvent, which reduces light transmittance and protects intraocular tissues by absorbing laser energy within a specific wavelength range.
Benefits of technology
Effective absorption of laser energy during laser surgery reduces damage to intraocular tissues, provides good light transmission and color rendering, facilitates the removal of viscoelastic agents, and reduces the risk of postoperative complications.
✦ Generated by Eureka AI based on patent content.
Abstract
This invention provides a laser-resistant viscoelastic composition, its preparation method, and its uses. The viscoelastic composition comprises a rheologically active ingredient, a laser-resistant dye, and a co-solvent. The laser-resistant viscoelastic composition exhibits a transmittance of over 90% in the visible light wavelength range of 550-675 nm, a transmittance of less than 70% in the 300-450 nm and / or 800-1100 nm bands, and a transmittance of 40%-45% in a specific laser wavelength range of 1060-1068 nm. This invention successfully adds a laser-resistant dye to the viscoelastic formulation. This laser-resistant dye has good spectral transmittance in the visible light range, does not affect the surgical field of vision, and does not stain normal intraocular tissues during surgical procedures. It also has good absorption properties at specific laser wavelengths, reducing the impact and damage of lasers on other intraocular tissues. Furthermore, it has certain moisturizing and anti-inflammatory effects and features postoperative removal visualization, ensuring the complete removal of the viscoelastic composition and reducing complications such as high intraocular pressure caused by postoperative residues.
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