A conjunctival grafting device for pterygium excision surgery

By designing an integrated conjunctival transplantation device, the problems of cumbersome operation and graft damage in pterygium surgery have been solved, improving surgical precision and efficiency, and promoting precise cutting and non-destructive transfer of grafts.

CN121694940BActive Publication Date: 2026-06-09SHANGHAI TENTH PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI TENTH PEOPLES HOSPITAL
Filing Date
2025-12-02
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The problems of pterygium surgery, such as complicated procedures, easy damage and poor precision of the graft, easy change in graft shape, and difficulty in distinguishing the front and back sides, have not been effectively solved.

Method used

A conjunctival transplantation device was designed, comprising a first holding unit, a second holding unit, a support unit, an angle adjustment unit, and a cutting unit. By integrating multiple steps into one instrument, the implant is accurately measured and cut, and the support unit supports the implant and prevents damage and morphological changes during the transfer process.

Benefits of technology

It improved surgical fluency and precision, reduced instrument changes, shortened surgical time, reduced the risk of graft damage, promoted healing, and reduced recurrence and scar formation.

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Abstract

The present application relates to a kind of conjunctival transplantation device for pterygium excision surgery, including first holding unit, second holding unit, support unit, first angle adjusting unit, second angle adjusting unit, first pressing unit, first cutting unit and second cutting unit.Its advantages are that the angle of first cutting unit and second cutting unit is adjusted in proximal end using first holding unit and second holding unit;first angle adjusting unit and second angle adjusting unit are rotated using first pressing unit, and then first cutting unit and second cutting unit cut conjunctival flap on support unit, which integrates multiple dispersed steps into one medical instrument to complete continuously, reducing instrument replacement;the size of conjunctival flap is measured by support unit without damaging the flap, which not only ensures the accuracy of the size and shape of the flap, avoids the error of manual operation, improves the accuracy and efficiency of surgery, but also avoids tissue damage caused by traditional forceps directly holding.
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