Multi-angle sternal retractor for thymoma thoracotomy

Abstract

The invention provides a multi-angle sternal retractor for thymoma thoracotomy. The multi-angle sternal retractor comprises sleeve joint connecting rods, connecting rods, push plates, rotary connecting plates, a connecting shaft pin, manual screwing self-locking screws, rotary connecting blocks and a double-ended bearing pedestal; connecting groove rods are arranged in the middles of the sleeve joint connecting rods, the sleeve joint connecting rods are connected with the connecting rods through the connecting shaft pin, rotary connecting plate mounting shafts are arranged at the rear sides ofthe lower ends of the sleeve joint connecting rods and the connecting rods, and provided with the rotary connecting plates, the rotary connecting plates are provided with three uniformly-distributedpush plates, rotary connecting block mounting holes are formed in the front sides of the upper ends of the sleeve joint connecting rods and the connecting rods, the rotary connecting blocks are mounted at the upper ends of the rotary connecting block mounting holes, self-locking nuts are welded to the rotary connecting blocks, the manual screwing self-locking screws are mounted inside the self-locking nuts, and the double-ended bearing pedestal is mounted between the tail ends of the manual screwing self-locking screws. According to the multi-angle sternal retractor, the push plates and the rotary connecting plates all can rotate, the rotating angle of the push plates is added, linear adjustment is adopted, the precision is high, and two-way simultaneous adjustment can be achieved, that isto say, self-locking is achieved when the retractor is stopped.

Description

technical field [0001] The invention relates to the technical field of medical instruments for thoracotomy, in particular to a multi-angle sternal retractor for thymoma thoracotomy. Background technique [0002] The thymus is an important lymphoid organ of the body, its function is closely related to immunity, and it is the place where T cells differentiate, develop and mature. It can also secrete thymus hormones and hormone-like substances, and is an organ with endocrine functions. Located in the anterior part of the superior mediastinum of the thoracic cavity. The human thymus weighs about 10-15 grams during the late embryonic period and at birth, which is the relatively heaviest period in life. With age, the thymus continues to develop, reaching about 30-40 grams at puberty. After that, the thymus gradually degenerated, the lymphocytes decreased, and the adipose tissue increased, only 15 grams in old age. [0003] Thymoma is a disease caused by lesions around the thym...

AI Technical Summary

Problems solved by technology

[0005] Surgical methods for thymoma are generally thoracotomy or minimally invasive surgery; in thoracotomy, the chest is stretched after incision, but there is an irregular arc-shaped incision, which is stretched using a sternal retractor. Some sternal retractors generally include handles, racks, wheels, movable arms, and fixed arms. The push plates on the movable arm and the fixed arm are integrated and do not have multi-angle adjustment. At the same time, the baffle itself is also a long bar. The overall shape lacks more angle adjustments to match irregular arc cuts, which will cause more damage; at the same time, the top of the movable arm and the fixed arm are connected to the rack, and the rack is used to cooperate. The unit length of the adjustment is long and cannot be adjusted. Fine-tuning, and the movable arm does not slide smoothly, and the operation is laborious

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