Drag hook special for thoracoscopic surgery

Abstract

A special retractor for thoracoscopic surgery comprises a long rod body, a handle is arranged at one end of the long rod body, a retractor body is arranged at the other end of the long rod body, the retractor body is of a symmetrical structure and comprises two arm rods, and one ends of the two arm rods are connected to the long rod body; in conclusion, the drag hook has a certain fillet radian, not only can drag odd veins and mediastinal pleura on the surfaces of the odd veins, but also can drag a left pulmonary artery trunk to expose lymph nodes beside a left lower trachea, and is stable in traction, not easy to slip, not easy to damage tissues, and safe to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of endoscopic surgical instruments, and particularly relates to a special retractor for thoracoscopic surgery. Background Technique

[0002] The azygos vein is formed by the right lumbar vein passing upward through the right diaphragmatic crus and entering the posterior mediastinum. It runs along the right front of the spine behind the thoracic aorta and the thoracic part of the esophagus. During mediastinal lymph node dissection in lung tumor surgery, it is necessary to pull the azygos vein and the mediastinal pleura on its surface to expose the mediastinal lymph nodes, facilitating the dissection and resection of the mediastinal lymph nodes; it is used to pull the main trunk of the left pulmonary artery to expose the left inferior paratracheal lymph nodes, and even to pull any blood vessels in the body cavity to expose the surgical target; at the same time, the existing retractor handle has no obvious protruding design, which is inconvenient for the operator to hold, and it is also difficult to judge the angle / position between the retractor and the handle, which is not conducive to fine operation. Currently, there is no such surgical instrument that can enter the thoracic cavity through a small thoracoscopic incision for auxiliary pulling operation. Content of the Utility Model

[0003] The utility model aims to provide a special retractor for thoracoscopic surgery to solve the technical problems existing in the prior art.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A special retractor for thoracoscopic surgery includes a long rod body. One end of the long rod body is provided with a handle, and the other end of the long rod body is provided with a retractor body. The retractor body is a symmetric structure and includes two arm rods. One ends of the two arm rods are connected to the long rod body, and the other ends of the two arm rods are bent and connected to form a hook structure.

[0006] Further, a rotating seat is arranged on the handle. The rotating seat is installed on the handle in a rotating manner. A threaded hole is opened on the rotating seat, and an external thread is arranged at the end of the long rod body. The end of the long rod body is installed in the threaded hole of the rotating seat through the external thread.

[0007] Further, two auxiliary support rods are arranged on the rotating seat. The two auxiliary support rods are of equal length and are symmetrically arranged along the center line of the rotating seat.

[0008] Further, an installation seat is arranged at the end of the long rod body. A stud is installed on the installation seat by threading, and the end of the arm rod of the retractor body is fixed on the stud.

[0009] Further, length scale lines are arranged on the long rod body.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: The retractor of the present utility model has a certain rounded arc and elasticity, which can not only retract the azygos vein and the mediastinal pleura on its surface, but also retract the main trunk of the left pulmonary artery to expose the left inferior paratracheal lymph nodes. The retraction is stable, not easy to slip off, and not easy to damage tissues, so it is safe to use. The two auxiliary support rods enable the operator holding the instrument to judge the angle / position of the instrument he holds, so as to be able to more precisely adjust the angle / position of the retractor to meet the needs of minimally invasive surgery. The length scale lines on the long rod body can be used to measure depths, distances and the sizes of objects (such as tumors, bronchi, etc.). BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0012] Figure 1 is a schematic structural diagram of a special retractor for thoracoscopic surgery;

[0013] Figure 2 is Figure 1 the bottom view of;

[0014] Figure 3 is an axonometric view of a special retractor for thoracoscopic surgery. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] The present utility model will be further described in detail below with reference to the embodiments.

[0017] As Figures 1-3 shown, a specific embodiment of a special retractor for thoracoscopic surgery provided by the present utility model:

[0018] A retractor specially used for thoracoscopic surgery, comprising a long rod body 1, a handle 2 is arranged at one end of the long rod body 1, and a retractor body 3 is arranged at the other end of the long rod body 1. The retractor body 3 is a symmetrical structure, and the retractor body 3 includes two arm rods 4. One ends of the two arm rods 4 are connected to the long rod body 1, and the other ends of the two arm rods 4 are bent and connected to form a hook body structure 5. In this embodiment, the arm rod 4 and the hook body structure 5 of the retractor body 3 are formed by bending a long rod. The retractor body 3 has a certain rounded arc to hook strip-shaped tissues such as blood vessels or bronchi, prevent slipping, and at the same time does not damage the tissues.

[0019] In addition, the retractor body 3 of this embodiment is detachably installed at the end of the long rod body 1. Specifically, an installation seat 6 is arranged at the end of the long rod body 1, and a stud 7 is threadedly installed on the installation seat 6. The end of the arm rod 4 of the retractor body 3 is fixed on the stud 7

[0020] As another embodiment of the present utility model, the direction of the retractor body 3 of this embodiment can be adjusted. Specifically, a rotating seat 8 is arranged on the handle 2, and the rotating seat 8 is installed on the handle 2 in a rotating manner. A threaded hole is opened on the rotating seat 8, and an external thread is arranged at the end of the long rod body 1. The end of the long rod body 1 is installed in the threaded hole of the rotating seat 8 through the external thread; during a pulmonary tumor surgery, the rotating seat 8 can be rotated so that the operator can flexibly master the retractor body 3 from multiple directions, reducing the muscle fatigue and slipping phenomenon of the operator; preferably, two auxiliary support rods 9 are arranged on the rotating seat 8, the two auxiliary support rods 9 are of equal length and are symmetrically arranged along the center line of the rotating seat 8. The operator's fingers can easily control the retractor with a relatively large lateral or quasi-rotating torque, and at the same time the presence of the auxiliary support rods 9 also enables the retractor to have a better anti-slip function.

[0021] Length scale lines 10 are arranged on the long rod body 1. When the long rod body 1 is inserted, the operator can know the insertion depth through the length scale lines 10.

[0022] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A retractor for thoracoscopic surgery, characterized in that: It comprises a long rod body, one end of which is provided with a handle, and the other end of which is provided with a hook body, wherein the hook body is a symmetrical structure, and the hook body comprises two arm rods, one end of which is connected to the long rod body, and the other end of which is bent and connected to form a hook body structure; The handle is provided with a rotating seat, which is installed on the handle by rotating, and a threaded hole is provided on the rotating seat. The end of the long rod body is provided with an external thread, and the end of the long rod body is installed on the threaded hole of the rotating seat through the external thread; The rotating seat is provided with two auxiliary support rods, which are of equal length and symmetrically arranged along the center line of the rotating seat.

2. A retractor for thoracoscopic surgery according to claim 1, characterized in that: A mounting seat is arranged at the end of the long rod body, a stud is threadedly mounted on the mounting seat, and the end of the arm rod of the hook body is fixed on the stud.

3. The retractor for thoracoscopic surgery according to claim 1, characterized in that: The long rod body is provided with length scale lines.

Images