Lacrimal retractor with lighting device

Abstract

The lacrimal retractor with lighting device includes retracing mechanism comprising regulating screw bolt, regulating arm with arced hollow front end and retracting link rod; retracting sheet integrated with the arced hollow front end and connected to the retracing mechanism; lighting device connected to the arced hollow front end. The rectangular retracting sheet has slightly outwards hooked low edge. The present invention has good light guiding performance, high brightness, clear operation view field for convenient handling, no heat feeling produced in the wound and other advantages.

Description

technical field [0001] The invention belongs to a medical surgical instrument, in particular to a special medical instrument for lacrimal sac-related operations. Background technique [0002] The lacrimal sac spreader is one of the indispensable and important surgical instruments in ophthalmology-related lacrimal sac surgery. The current lacrimal sac spreader is composed of a spreader mechanism composed of an adjusting screw, a forearm, a spreader connecting rod, and an arc-shaped hook. It is inconvenient to place and take out during use, and it will cause certain damage to the skin and subcutaneous muscle tissue, which will affect the incision suture after the operation. At the same time, due to the small and deep field of view of the lacrimal sac surgery, the shadowless lamp is far away from the surgical field of view. In addition, the surgeon needs to peep at a close distance during the operation, and the head of the surgeon can also block pa...

AI Technical Summary

Problems solved by technology

[0002] The lacrimal sac spreader is one of the indispensable and important surgical instruments in ophthalmology-related lacrimal sac surgery. The current lacrimal sac spreader is composed of a spreader mechanism composed of an adjusting screw, a forearm, a spreader connecting rod, and an arc-shaped hook. It is inconvenient to place and take out during use, and it will cause certain damage to the skin and subcutaneous muscle tissue, which will affect the incision suture after the operation.

At the same time, due to the small and deep field of view of the lacrimal sac surgery, the shadowless lamp is far away from the surgical field of view. In addition, the surgeon needs to peep at a close distance during the operation, and the head of the surgeon can also block part of the light, resulting in the obvious insufficient illumination of the deep surgical field of view, which seriously affects the operation. Operated by the operator, so the traditional operation is completed based on the experience of the operator

For example, in dacryocystorhinostomy, if the illumination of the operative field is insufficient, the operator may not be precise enough to make the hole in the lacrimal fossa of the nasal bone. If the hole is too large, it may lead to postoperative collapse of the nasal bone, seriously affecting the patient. The face is beautiful; if the position of the hole is too high, it is more likely to cause the failure of the operation; if the corresponding nasal mucosa is damaged during the hole making process, it may lead to the failure of the mucosa to match the lacrimal sac, or more bleeding, making the operation difficult

In addition, due to individual differences in patients, such as the thickness of the nasal bone, the position and size of the lacrimal fossa, and the width of the nasal cavity, if the surgical field of view is insufficiently illuminated, it may affect the success of the operation.

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