An expandable retractor for breast tumor surgery

Abstract

The invention discloses an expandable retractor used for a breast tumor surgery. By rotating a handle, a tail-end jaw is expanded for support tissue around a surgery cut of the breast surgery in order to provide vision and operation space for a doctor's surgery. The expander is mostly composed of two parts including a motion unit part and a main body structure of the expander. The motion unit part comprises a vertical motion unit (1), a horizontal motion unit (2), and self-locking devices (3). The structure of the expander is composed of a fixing rack (4), an adjusting handle (5), a lead screw (6), a nut (7), a guide rail (8), a middle connecting plate (9), an adjusting connecting-rod group (10), a main shaft of a mechanism (11), a middle driving shaft (12), and the tail-end jaws (13). The expandable retractor used for the breast tumor surgery has following beneficial effects: by rotating the adjusting handle (5), open-close movement of the tail-end jaw (13) can be controlled so that tissue around the cut can be finished expanding; by adjusting the vertical (1) and horizontal motion unit (2), the retractor is inserted into the cut and expand and support tissue. Therefore, vision and operation space are provided for a doctor.

Description

technical field [0001] The invention relates to an expandable retractor for breast tumor surgery; specifically, it is a retractor that provides support for the tissue at the front of the breast tumor surgery incision, and provides the surgical field of view and operating space for the surgeon. A retracting device. Background technique [0002] Breast tumors have become a major public health problem in the current society, and surgery is the main method for treating breast tumors. With the rapid development of medical science and technology, breast surgery is also constantly improving. The traditional surgical resection treatment method cannot meet the needs of patients for breast beauty because of large trauma and permanent scars left on the breast skin. At present, segmental or partial mammary gland excision combined with axillary lymph node dissection is the most commonly used surgical method. Its main advantages are small trauma and can preserve the breast shape; howeve...

AI Technical Summary

Problems solved by technology

At present, for small incision operations such as breast tumors, due to individual differences in patients and different incision positions, hand-held retractors are often used; during the operation, the retractor needs to be operated by an assistant so that it is always in a pulling state, which is very inconvenient. This retraction method requires a large number of assistants; although the existing retractors specially used for thoracic surgery can achieve the functions of fixation and retraction, the shape of the end is relatively bulky, and it is not suitable for breast tumor surgery with small incisions

In addition, since the end of the retractor needs to be adjusted in real time according to the operation process during the operation, the adjustment method of the end of the existing retractor is laborious and inconvenient for assistants to operate

To the best of our knowledge, no such retractor has been reported that is suitable for small incisions and can be adjusted to the patient's breast size

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