Pressure regulating device for posterior segment of eyes in penetrating keratoplasty

Abstract

The invention discloses a pressure regulating device for a posterior segment of eyes in penetrating keratoplasty. The pressure regulating device comprises a negative pressure machine, a liquid suctionneedle and a connecting pipe, wherein a first pipe connector is arranged on the negative pressure machine, a second pipe connector is arranged at the tail of the liquid suction needle, one end of theconnecting pipe is connected with the first pipe connector, and the other end of the connecting pipe is connected with the second pipe connector; and a pressure regulating knob is arranged on the negative pressure machine. Compared with the prior art, according to the technical scheme, the intraocular pressure in the penetrating keratoplasty can be accurately controlled, the eyeball content is prevented from being extruded outwards, and the device is easy to operate, adjustable and controllable in pressure, reliable and stable and can ensure safety in the penetrating keratoplasty, reduce theoperation difficulty and avoid serious complications such as disengagement of the eyeball content.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a pressure regulating device for the posterior segment of the eye during penetrating keratoplasty. Background technique [0002] Penetrating keratoplasty is to remove all the cornea of ​​the patient during the operation and replace it with a healthy cornea. It is suitable for diseases such as severe corneal opacity or thinning of the entire cornea. There may be certain rejection after surgery. Anti-rejection drugs are applied for a long time to ensure the safety of the cornea. Normally, the cornea covers the outer surface of the eyeball and maintains the balance of pressure inside and outside the eyeball. However, during the operation, due to the removal of the cornea, the original pressure balance is broken, and the contents of the eyeball may be squeezed out. In severe cases, the operation will fail. Therefore, it is necessary to release the pressure in the eyeball to Make sure...

AI Technical Summary

Problems solved by technology

However, during the operation, due to the removal of the cornea, the original pressure balance is broken, and the contents of the eyeball may be squeezed out. In severe cases, the operation will fail. Therefore, it is necessary to release the pressure in the eyeball to Ensuring that the tissues within the eyeball remain in place as much as possible

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