Abstract: The present disclosure generally relates to a surgical instrument. The surgical instrument includes a base unit and a probe. The probe is disposed through an opening in a distal end of the base unit. The probe includes a port formed proximate to a distal tip of the probe. The distal tip includes a window, a lumen formed through the probe, and one or more optical fibers disposed in the lumen. The one or more optical fibers project a first laser light for irradiating an area proximate to the port to cut collagen fibers of vitreous material aspirated through the port. The one or more optical fibers further project a second laser light for cauterizing bleeding in an intraocular space of a patient.

Abstract: A force tactile feedback device at master end of robot assisted system for vascular interventional surgery includes a surgeon operating rod, a circumferential directional surgeon operation action capturing and force tactile feedback unit, a compressible and extendable rhombus structure, a transmission directional surgeon operation action capturing and force tactile feedback unit, a housing and a support plate. The force tactile feedback device at master end of robot assisted system for vascular interventional surgery keeps consistent with a traditional manual vascular interventional surgery in operation mode, and not only reduces a learning cycle and use difficulty for a surgeon on a master end apparatus, but also allows the surgeon to make full use of accumulated experience and skills.