DEVICE, KIT AND METHOD FOR MINIMALLY INVASIVE GLAUCOMA SURGERY Russian patent published in 2022 - IPC A61F9/07 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine and medical technology, in particular to devices for the treatment of glaucoma and methods for implantation of such devices. The device is a drainage tube in the form of a self-expanding frame having a distal end and a proximal beveled end, and the device is designed to be implanted from the outside of the eyeball inside, from the conjunctiva to the anterior chamber of the eye, through a puncture of the scleral-corneal tissues at the level of the anterior chamber of the eye so that the distal end of the drainage tube is at the level of the trabecular network eyes, not protruding into the anterior chamber, but the proximal end is on the border of the sclera and the subconjunctival space, without protruding under the conjunctiva, and the frame is made self-expanding along its entire length after its implantation. For implantation of the device described above, a delivery system is used, including a shell inside which the drainage tube is in a compressed state and which prevents the expansion of the drainage tube, and a stop conductor located inside the shell and prevents the longitudinal movement of the drainage tube inside the shell. The method for minimally invasive glaucoma surgery includes the following steps: a pre-manufactured and sterilized kit for minimally invasive glaucoma surgery is selected so that the length, diameter and angle of bevel of the proximal end of the drainage tube from the kit correspond to the individual features of the patient’s eye structure. A micro-incision is made in the conjunctiva. Next, a puncture of the corneal-scleral tissues is performed through a micro-incision, while the puncture reaches the anterior chamber of the eye and forms a channel. The shell of the delivery system is passed in the formed channel from the conjunctiva to the anterior chamber of the eye until the distal end of the shell reaches the apex of the angle of the anterior chamber of the eye, the shell of the delivery system is shifted in the proximal direction, and the stop conductor is held in place so that the device is released and expanded to the set diameter, being held in the created channel.

EFFECT: developed design of the drainage tube and the method for its implantation will reduce intraocular pressure in patients with glaucoma and keep it in the range of normal values.

13 cl, 4 dwg