Endoscopic thyroid surgery retractor

Abstract

This invention discloses a retractor for endoscopic thyroid surgery, comprising two first incision supports and two second incision supports. A screw is provided between the first and second incision supports, with one end of the screw rotatably connected to the first incision support and the other end threadedly connected to the second incision support. The end of the screw away from the second incision support is elastically connected to the first incision support. The first and second incision supports have the same external structure and both include an anti-sinking plate and a lateral notch. The edge of the surgical incision is secured within the notch, and the anti-sinking plate is positioned on the outer side of the skin. During use, the two first and two second incision supports, under the tightening force, expansion force, and elastic rebound of the spring, enable the retractor to support the incision without the need for other auxiliary supports, while ensuring the openness of the surgical field.

Description

Technical Field

[0001] This invention relates to the field of surgical retractor technology, and more particularly to a retractor for endoscopic thyroid surgery. Background Technology

[0002] Exposing the surgical field is a crucial step in endoscopic thyroid surgery. Retractors are used to open and expose superficial incisions. However, current surgical retractors have a significant drawback: they all require a support rod for fixation to the bed, thus occupying considerable space. Medical staff must constantly monitor the position of the support rod during surgery to avoid collisions. Furthermore, the horizontal components of the support rod and retractor can interfere with the work. During surgery, surgical gowns can easily snag on exposed support rods or components, potentially causing the retractor to tear at the patient's wound and resulting in unnecessary injury.

[0003] Meanwhile, the invention disclosed in authorized patent number CN104013445A discloses a retractor for endoscopic thyroid surgery, suitable for surgical field exposure in endoscopic thyroid surgery, including a support body with muscle fixation heads at both ends; the support body is an elastic support strip, and the two ends of the elastic support strip are connected to the muscle fixation heads by ball joints; the muscle fixation heads are provided with notches for fixing muscles, and the notches of the notches are set towards both ends. This invention cleverly utilizes the muscle recovery force of separating the anterior neck muscle groups to create an approximately hemispherical surgical operating space, without the need to create an artificial inflatable surgical field to create surgical operating space. The elastic support strip is divided into two sections, one long and one short, by a hinge post. During use, the two parts of the elastic support body fold at the hinge post, generating a larger operating space, making actual operation feasible. This invention has a simple and practical structure, closely combined with the characteristics of endoscopic thyroid surgery, and uses mechanical support to replace manual support to obtain the space and surgical field necessary for the operation. Although this invention can solve the problem of the space occupied by the support rod, the elastic support is cross-positioned above the surgical field, and the area above the surgical field is not completely open, which affects the operation of medical instruments by medical staff and affects their line of sight.

[0004] Therefore, we propose a retractor for endoscopic thyroid surgery. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a retractor for endoscopic thyroid surgery.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A retractor for laparoscopic thyroid surgery includes two first incision supports and two second incision supports, wherein the two first incision supports and the two second incision supports are distributed in a ring at intervals;

[0008] A screw is provided between the first cutting support and the second cutting support. One end of the screw is rotatably connected to the first cutting support, and the other end is threadedly connected to the second cutting support. The end of the screw away from the second cutting support is elastically connected to the first cutting support.

[0009] The first and second incision supports have the same external structure and both include an anti-sinking plate and a side-opening notch. The edge of the surgical incision is locked in the notch, and the anti-sinking plate is placed on the outside of the skin.

[0010] By rotating the screw clockwise, it is inserted into the internal threaded hole, bringing the two first and two second incision supports closer together. At this point, the surgical field area is minimized. The device is then lifted by the handle, and the existing hooks assist in expanding the incision. The device is then placed into the incision. Subsequently, medical staff rotate the four screws counterclockwise. As the screws rotate counterclockwise, they extend from the second incision supports, causing the two first incision supports to open outward. This increases the surgical field area formed by the two first and two second incision supports. The screws provide support and fixation for the incision. Under the tightening force, expansion force, and elastic rebound of the springs, the hooks can support the incision without the need for other rods, while ensuring the openness of the surgical field.

[0011] Preferably, the first cut support and the second cut support are L-shaped structures, and the two first cut supports and the two second cut supports form a rectangular structure;

[0012] The first cutting support member has a movable hole on the side near the second cutting support member along the axial direction of the screw, and the second cutting support member has an internal threaded hole on the side near the first cutting support member along the axial direction of the screw.

[0013] One end of the screw is rotatably connected to the movable hole, and the other end is threadedly connected to the internal threaded hole.

[0014] Preferably, a bearing is installed inside the movable hole at the end away from the second cut support, the outer ring of the bearing is interference-fitted with the inner wall of the movable hole, and a spring is installed between the inner ring of the bearing and the screw.

[0015] Preferably, a handle is fixedly installed on the upper surface of the anti-sinking plate;

[0016] The outer surfaces of the first and second cut support members are covered with a layer of adhesive.

[0017] Preferably, a reinforcing plate is fixedly installed on the side of the second cut support member close to the first cut support member, and a rectangular hole adapted to the reinforcing plate is opened on the side of the first cut support member close to the second cut support member;

[0018] The reinforcing plate is located close to the surgical field side, and the screw is positioned outside the reinforcing plate.

[0019] Preferably, a rectangular member is fixedly installed on the section of the screw located between the first cut support and the second cut support.

[0020] The retractor for laparoscopic thyroid surgery proposed in this invention has the following advantages:

[0021] The device is placed into the incision, and then medical staff rotate the four screws counterclockwise. When the screws rotate counterclockwise, they extend from the second incision support and cause the two first incision supports to open outward. At this time, the surgical field area formed inside the two first and two second incision supports increases, and the incision is supported and fixed by the support of the screws. Under the tightening force, expansion force, and elastic rebound of the spring, the hook can support the incision without the need for other rods for support, while ensuring the openness of the surgical field. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a retractor for laparoscopic thyroid surgery proposed in this invention;

[0023] Figure 2 This is a schematic diagram of the retractor hook structure for laparoscopic thyroid surgery proposed in this invention;

[0024] Figure 3 This is a schematic diagram of the explosive structure of a retractor for laparoscopic thyroid surgery proposed in this invention;

[0025] Figure 4 This is a schematic diagram of the first incision support structure of a retractor for laparoscopic thyroid surgery proposed in this invention;

[0026] Figure 5 This is a cross-sectional view of the first incision support of the retractor in laparoscopic thyroid surgery proposed in this invention;

[0027] Figure 6 This is a schematic diagram of a retractor screw, spring, and bearing structure for laparoscopic thyroid surgery proposed in this invention;

[0028] Figure 7 This is a schematic diagram of the second incision support structure of a retractor for laparoscopic thyroid surgery proposed in this invention;

[0029] Figure 8 This is a horizontal cross-sectional view of the second incision support of the retractor in laparoscopic thyroid surgery proposed in this invention.

[0030] In the picture:

[0031] 1. First cut support; 11. Movable hole; 12. Rectangular hole;

[0032] 2. Second cut support; 21. Anti-sinking plate; 22. Notch groove; 23. Internal threaded hole; 24. Handle;

[0033] 3. Screw; 31. Rectangular component;

[0034] 4. Reinforcing plate;

[0035] 5. Spring;

[0036] 6. Adhesive layer;

[0037] 7. Bearings. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Reference Figure 1-8 A retractor for laparoscopic thyroid surgery includes two first incision supports 1 and two second incision supports 2, wherein the two first incision supports 1 and the two second incision supports 2 are distributed in a ring at intervals, as shown in the figure. Figure 1As shown, two first incision support members 1 and two second incision support members 2 are arranged in a ring, with the first incision support members 1 and the second incision support members 2 spaced apart. A screw 3 is provided between the first incision support members 1 and the second incision support members 2. One end of the screw 3 is rotatably connected to the first incision support member 1, and the other end is threadedly connected to the second incision support member 2. Rotating the four screws 3 clockwise causes the two first incision support members 1 and the two second incision support members 2 to move closer together, reducing the surgical field area and providing support and adjustment for smaller incisions. When the screws 3 rotate counterclockwise, the screws 3 extend from inside the second incision support members 2, causing the two first incision support members 1 to spread outwards. At this time, the surgical field area formed inside the two first incision support members 1 and the two second incision support members 2 increases, and the incision is supported and fixed through the supporting action of the screws 3. The end of the screw 3 away from the second incision support member 2 is elastically connected to the first incision support member 1. Under the elastic rebound effect, the first incision support 1 and the second incision support 2 offset part of the tightening force of the incision during support, resulting in better support comfort. The first incision support 1 and the second incision support 2 have the same shape and structure, and both include an anti-sinking plate 21 and a side-opening notch 22. The edge of the surgical incision is stuck in the notch 22, and the anti-sinking plate 21 is placed on the outside of the skin. After the device is placed inside the incision, the incision is stuck on the notch 22. The anti-sinking plate 21 is placed on the outside of the skin to prevent it from falling into the incision. Adjusting the four screws 3 causes the two first incision support 1 and the two second incision support 2 to expand outward. Under the tightening force, expansion and elasticity of the two first incision support 1 and the two second incision support 2, the hook can support the incision without the need for other rods to assist in support, while ensuring the openness of the surgical field.

[0041] The first cut support 1 and the second cut support 2 are L-shaped structures. The two first cut support 1s and the two second cut support 2s form a rectangular structure, such as... Figure 2As shown, this scheme preferentially adopts a square structure. The first cutting support 1 has a movable hole 11 along the axis of the screw 3 on the side near the second cutting support 2. The second cutting support 2 has an internally threaded hole 23 along the axis of the screw 3 on the side near the first cutting support 1. One end of the screw 3 is rotatably connected to the movable hole 11, and the other end is threaded to the internally threaded hole 23. A bearing 7 is installed inside the movable hole 11 at the end away from the second cutting support 2. The outer ring of the bearing 7 is interference-fitted with the inner wall of the movable hole 11. A spring 5 is installed between the inner ring of the bearing 7 and the screw 3. One end of the spring 5 is fixed to the end of the screw 3, and the other end is fixed to the inner ring of the bearing 7. The outer ring of the bearing 7 is interference-fitted within the movable hole 11. When the screw 3 rotates, the bearing 7 facilitates its rotation while preventing the separation of the first cutting support 1 and the second cutting support 2. The spring 5 is subjected to the squeezing force generated when the cut is tightened, and generates an elastic rebound force.

[0042] A handle 24 is fixedly installed on the upper surface of the anti-sinking plate 21, which facilitates the removal or insertion of the hook device from the incision. The outer surfaces of the first incision support 1 and the second incision support 2 are covered with a layer of adhesive 6, which can be made of silicone to prevent secondary scratches on the incision during installation. A reinforcing plate 4 is fixedly installed on the side of the second incision support 2 near the first incision support 1. A rectangular hole 12 adapted to the reinforcing plate 4 is opened on the side of the first incision support 1 near the second incision support 2. The reinforcing plate 4 is inserted into the rectangular hole 12, which can improve the overall stability of the two first incision supports 1 and the two second incision supports 2. At the same time, the screw 3 is placed on the outside of the reinforcing plate 4 near the surgical field side. Placing the screw 3 on the outside of the reinforcing plate 4 makes the surgical field side flatter. A rectangular piece 31 is fixedly installed on the section of the screw 3 between the first incision support 1 and the second incision support 2 to facilitate the rotation of the screw 3.

[0043] Working principle and advantages: By rotating the screw 3 clockwise, the screw 3 is inserted into the internal threaded hole 23. The two first incision support members 1 and the two second incision support members 2 approach each other, and the surgical field area is minimized at this time. Then, the device is lifted by holding the handle 24, and the existing hook assists in the expansion of the incision. Then, the device is placed into the incision. Subsequently, the medical staff rotates the four screws 3 counterclockwise. When the screws 3 rotate counterclockwise, the screws 3 extend out from the second incision support members 2, and the two first incision support members 1 are pushed outward. At this time, the surgical field area formed inside the two first incision support members 1 and the two second incision support members 2 increases. Through the support of the screws 3, the incision is supported and fixed. Under the tightening force, expansion force and elastic rebound force of the spring 5, the hook can support the incision without the need for other rods to assist in the support, while ensuring the openness of the surgical field.

[0044] When removing the device, rotate the screw 3 clockwise so that the screw 3 is retracted into the internal threaded hole 23. Then, the first incision support 1 and the second incision support 2 move closer to each other. At this time, the tightening force on the spring 5 decreases. Then, medical staff hold the handle 24, and another medical staff member uses the existing pull hook to help open the incision and remove the device from the incision.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An endoscopic thyroid surgery retractor, characterized in that, It includes two first cut support members (1) and two second cut support members (2), the two first cut support members (1) and the two second cut support members (2) are distributed at intervals, the first cut support members (1) and the second cut support members (2) are L-shaped structures, and the two first cut support members (1) and the two second cut support members (2) form a rectangular structure; A screw (3) is provided between the first cutting support (1) and the second cutting support (2). One end of the screw (3) is rotatably connected to the first cutting support (1), and the other end is threadedly connected to the second cutting support (2). The end of the screw (3) away from the second cutting support (2) is elastically connected to the first cutting support (1). The first incision support (1) and the second incision support (2) have the same external structure and both include an anti-sinking plate (21) and a side-opened notch (22). The edge of the surgical incision is stuck in the notch (22) and the anti-sinking plate (21) is placed on the outside of the skin. The first cutting support (1) has a movable hole (11) on the side near the second cutting support (2) along the axial direction of the screw (3), and the second cutting support (2) has an internal thread hole (23) on the side near the first cutting support (1) along the axial direction of the screw (3). One end of the screw (3) is rotatably connected to the movable hole (11), and the other end is threadedly connected to the internal threaded hole (23); A bearing (7) is installed at the end of the movable hole (11) away from the second cut support (2). The outer ring of the bearing (7) is interference-fitted with the inner wall of the movable hole (11). A spring (5) is installed between the inner ring of the bearing (7) and the screw (3).

2. The endoscopic thyroid surgery drag hook according to claim 1, wherein A handle (24) is fixedly installed on the upper surface of the anti-sinking plate (21); The outer surfaces of the first cut support (1) and the second cut support (2) are covered with a layer of adhesive (6).

3. The endoscopic thyroid surgery drag hook according to claim 1, wherein A reinforcing plate (4) is fixedly installed on the side of the second cut support (2) near the first cut support (1), and a rectangular hole (12) adapted to the reinforcing plate (4) is opened on the side of the first cut support (1) near the second cut support (2). The reinforcing plate (4) is located close to the surgical field side, and the screw (3) is positioned outside the reinforcing plate (4).

4. The endoscopic thyroid surgery drag hook according to claim 1, wherein A rectangular piece (31) is fixedly installed on the section of the screw (3) between the first cut support (1) and the second cut support (2).

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