LED auxiliary illuminating device for inner deep portion of chest

The utility model relates to an LED auxiliary illuminating device for an inner deep portion of a chest. As the surgery field of a chest surgery is deep, an illuminating effect cannot be optimal if only an operating lamp and head lamps of doctors are used, further, the visual field of the doctors is affected by lung lobes and other organs, the body position of a patient even needs to be adjusted to gain a suitable surgery field, the surgery efficiency is affected, surgery time is prolonged, and furthermore, surgery difficulty is increased. The LED auxiliary illuminating device is provided with a spherical lamp holder, a plurality of LED bulbs are uniformly arranged on a spherical surface of the spherical lamp holder, a battery jar is disposed on the lower portion of the spherical lamp holder, and a spring fixing ring is disposed on the lower portion of the battery jar. The LED auxiliary illuminating device is small in size, can be directly sleeved on a finger of a doctor or on another surgical instrument to pe