An ultrasonic drug delivery device for lens dyeing low-temperature separation fluid in smile surgery

Abstract

The invention relates to an ultrasonic drug delivery device for SMILE lens dyeing low-temperature separation liquid. Wherein, the SMILE technique lens dyeing low-temperature separation liquid is kept at 0-4°C and is used for SMILE technique dyeing infiltration separation lens, including balanced salt solution and 0.005mg / ml~0.5mg / ml fluorescein sodium, balanced salt solution The ingredients include 0.29mg / ml~0.8mg / ml potassium chloride, 0.19mg / ml~0.5mg / ml calcium chloride, 0.25mg / ml~0.35mg / ml magnesium chloride, 0.3mg / ml~0.45mg / ml sodium acetate And 1.6mg / ml~2.2mg / ml sodium citrate. The low-temperature separation fluid for SMILE lens dyeing provided by this application can be dyed and infiltrated in the corneal cap (cap), the front surface of the corneal stroma lens (cap-lens layer, upper layer), and the back of the corneal stroma lens The surface (lens-posterior stroma layer, lower layer), corneal cap incision, etc., make the upper and lower surfaces of the corneal stroma lens that are difficult to distinguish visible, thereby reducing the difficulty of corneal lens separation operation, making the operation more accurate, shortening the time, and protecting the corneal cap And corneal stroma and other major structures, reducing surgical complications.

Description

technical field [0001] The invention relates to the technical field of ophthalmic refractive surgery, in particular to an ultrasonic drug delivery device for lens dyeing and low-temperature separation liquid in SMILE surgery. Background technique [0002] Femtosecond laser small incision lenticule extraction (SMILE) surgery is to use femtosecond laser to perform spatial scanning micro-blast cutting on the corneal stroma layer to make it into a lens, and then make a small incision (2-4mm) from the edge of the cornea. ) is taken out to complete a new type of refractive surgery that changes the curvature of the cornea. [0003] A large number of clinical and research data show that SMILE has excellent safety, stability and predictability, and the advantages of this "minimally invasive" corneal refractive surgery have attracted more and more attention. However, due to the limitations of the femtosecond laser, there is still a bridge-like connection between the corneal stromal l...

AI Technical Summary

Problems solved by technology

Especially limited by the biomechanical conditions of the cornea, the surgical sequence must first separate the upper surface of the corneal stroma lens, and then separate the lower surface of the corneal stroma lens. Once the order is wrong or the lens separation technique is improperly operated, it is easy to cause the lens shovel to enter the wrong layer or Separation of the interlayer, resulting in difficulty in separation of the corneal stromal lens, breakage, damage to the corneal cap (cap) and tearing of the corneal incision, etc., which in turn lead to clinical complications of varying degrees

Images