Retina blood vessel syringe for ophthalmic operation robot and injection method thereof

Abstract

The invention relates to a retina blood vessel syringe for an ophthalmic operation robot and an injection method thereof. The problems that an existing syringe device is low in operationand positioning efficiency, the device cannot be directly inserted into an eye, injection failsor secondary injury is caused are solved. The syringe comprises an actuator fixing base (4), a needle tube module (1),a feeding module (2) and a rotation module (3), the needle tube module (1) is installed on the feeding module (2) and achieves feeding under the drive of the feeding module (2), the feeding module (2)is installed on the front of the rotation module (3), the needle tube module (1) and the feeding module (2) rotate under the drive of the rotation module (3), and the rotation module (3) is installedon the actuator fixing base(4). The syringe is applied to the ophthalmic operation robot.

Description

technical field [0001] The invention relates to a retinal blood vessel drug injector and an injection method thereof, in particular to a retinal blood vessel drug injector used for an ophthalmic surgery robot and an injection method thereof. Background technique [0002] When the blood vessels on the fundus retina are blocked or pathological, the simplest and most effective method is to inject drugs at the diseased blood vessels to achieve the effect of prescribing the right medicine and clearing the blockage. Due to the small size of the eyeball and the fine and fragile tissue structure of the eyeball, the diameter of the retinal vein to be injected is generally less than 400 μm, and the amplitude of the physiological hand tremor of a retinal surgeon is about 180 μm. This work cannot be done, and the small force during the operation is difficult for people to perceive, so the doctor alone cannot know whether the blood vessel is successfully punctured, and the patient is pro...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the needle tip of the existing syringe device has limited movement and can only achieve linear translation and circumferential change, resulting in the need for multiple placements to find a suitable posture, which has the problem of low efficiency of surgery and placement, and The existing injection method must puncture the sclera because the needle tube enters the inside of the eyeball. If a curved needle tip is used to puncture the sclera directly, the wound will be too large, and it cannot even be directly inserted into the human eye. The risk of secondary injury

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