Surgical Retractor

摘要

A surgical retractor and method for retracting tissue in a patient is anatomically designed for particular muscles and includes a light source the light beam of which is positionable relative to the surgical retractor. The surgical retractor has a pair of retraction blades carried on separate retraction portions held open by ratchet assemblies. Blades are manually retracted and held open by automatically engaging ratchet fingers and are designed to match muscle curvature, minimizing various risks and incision size. The first retraction portion carries the first blade and includes tines each with ratchet grooves, while the second retraction portion carries the second blade on a carriage that is movably carried on the tines. Resilient spring actuated fingers associated with the carriage has ratchet grooves that co-act with the ratchet grooves of the tines to provide the ratchet assemblies between the retraction portions that regulates movement of the carriage and the second blade relative to the first blade.

主权项

1. A surgical retractor comprising:
a body having a first end, a first tine extending from one side of the first end, the first tine having a first ratchet portion, a second tine extending from a second side of the first end, the second tine having a second ratchet portion, and a first blade extending from the first and second tines; a carriage carried for movement on and along the first and second tines, the carriage having a second blade extending from a side of the carriage, a first resilient finger extending from a first end of the carriage along the first tine and having a first catch that is normally biased by the resiliency of the first resilient finger to cooperate with the first ratchet portion of the first tine to allow free movement of the carriage in a first direction along the first tine but prevent movement of the carriage in a second direction along the first tine, but which may be manually actuated to overcome the resiliency of the first finger to allow free movement of the carriage in the second direction with respect to the first tine, a second resilient finger extending from a second end of the carriage along the second tine and having a second catch that is normally biased by the resiliency of the second resilient finger to cooperate with the second ratchet portion of the second tine to allow free movement of the carriage in the first direction along the second tine but prevent movement of the carriage in the second direction along the first tine, but which may be manually actuated to overcome the resiliency of the second finger to allow free movement of the carriage in the second direction with respect to the second tine; and a light source and battery mounted on the body, the light source emitting a light beam when actuated by the battery, the light beam of which may be positioned to direct the light beam towards a desired area.