Ultrasonic-guided endoscopic thyroid surgery approach positioning device

Abstract

The utility model discloses an endoscopic thyroid surgery approach positioning device under ultrasonic guidance, which comprises a sleeve and a guide needle inserted in the sleeve, the guide needle is formed by connecting two single needles through a pin shaft, and barbs are arranged at the front ends of the two single needles. The sliding groove is formed in the tail end of the guide needle, the triangular sliding block is arranged in the sliding groove in one side, so that the needle handle can be conveniently opened, the operation view can be opened, only the stable sliding block needs to be pressed by hands, the whole guide needle does not need to be opened by two hands for a long time, single-hand operation can be achieved, and the burden of an operator is relieved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and particularly to a positioning device for the approach of endoscopic thyroidectomy under ultrasonic guidance. Background Art

[0002] At present, there are mainly two surgical methods for thyroid surgery: open surgery and endoscopic surgery. Endoscopic thyroidectomy can be divided into different methods according to the approach, such as subclavian approach, axillary approach, submental approach, oral approach, and thoracotomy approach. The first two methods both enter through the muscle space between the sternocleidomastoid muscle's sternal head and clavicular head. For the vast majority of patients, this muscle space is relatively obvious and easy to find. However, for a small number of patients, the muscle space is relatively hidden and difficult to find, which will prolong the operation time. It will also cause bleeding from the sternocleidomastoid muscle, increasing the risk of postoperative bleeding. Moreover, the opening of the surgical field often requires direct manual assistance for a long time, increasing the burden on the operator, occupying the hands and easily causing hand soreness. Content of the Utility Model

[0003] To solve the problems existing in the background art, the utility model provides a positioning device for the approach of endoscopic thyroidectomy under ultrasonic guidance.

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

[0005] A positioning device for the approach of endoscopic thyroidectomy under ultrasonic guidance of the utility model includes a cannula and a guide needle inserted into the cannula. The guide needle is composed of two single needles connected by a pin shaft, and barbs are provided at the front ends of both single needles.

[0006] Further, each single needle is integrally connected and made of a needle body and a needle handle on its opposite side.

[0007] Further, an integrated handle is provided at the end of each needle handle.

[0008] Further, sliding grooves are provided on the inner sides of the two opposite needle handles. The sliding groove on one side extends backward to the handle, and a slider is slidably provided in this sliding groove.

[0009] Further, the outer sides of the needle body and the needle handle are both arc-shaped surfaces.

[0010] Further, the front end of the slider is an isosceles triangle, and protrusions are provided on its surface.

[0011] Further, the end of the sliding groove where the slider is located is in a closed state, and the end of the sliding groove on the other side is in an open state.

[0012] Compared with the prior art, the utility model has the following beneficial effects: For the laparoscopic thyroidectomy approach positioning device under ultrasonic guidance, the guide needle is set to a structure similar to pliers or scissors. A chute is arranged at the tail end of the needle, and a triangular slider is arranged in one side of the chute to facilitate opening the needle handle, thereby opening the surgical field of view. Only by pressing the stable slider with the hand is needed, and there is no need to keep the whole guide needle open with the hand for a long time, so single-handed operation can be realized, reducing the burden on the operator.

[0013] When the sternocleidomastoid muscle space is not clear during the operation, this product can be used to puncture the muscle space under ultrasonic guidance. After puncture, the cannula is removed, and the guide needle is left as a positioning mark during the operation. The needle handle and the needle body on both sides can also be opened, making it easier to expose the muscle space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0015] Figure 1 is a schematic structural view of a laparoscopic thyroidectomy approach positioning device under ultrasonic guidance of the utility model;

[0016] Figure 2 is a schematic structural view of a single needle of a laparoscopic thyroidectomy approach positioning device under ultrasonic guidance of the utility model;

[0017] Figure 3 is a sectional view of the needle body of a laparoscopic thyroidectomy approach positioning device under ultrasonic guidance of the utility model;

[0018] Figure 4 is a schematic connection view of the needle handle and the slider of a laparoscopic thyroidectomy approach positioning device under ultrasonic guidance of the utility model.

[0019] In the figure: 1, single needle; 101, needle body; 102, needle handle; 2, cannula; 3, handle; 4, chute; 5, slider; 6, barb; 7, pin shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0021] Such as Figures 1 to 4As shown in the figure, an access positioning device for endoscopic thyroidectomy under ultrasonic guidance includes a cannula 2 and a guide needle inserted into the cannula 2. The guide needle is composed of two single needles 1 connected by a pin shaft 7, forming a structure with the same principle as pliers or scissors to open the visual field. Barbs 6 are provided at the front ends of the two single needles 1 to facilitate puncturing and fixing the needle body.

[0022] Among them, each single needle 1 is integrally connected and made of a needle body 101 and a needle handle 102 on its opposite side.

[0023] Among them, an integrated handle 3 is provided at the end of each needle handle 102, and the maximum distance between the two handles 3 in the closed state is less than the inner diameter of the cannula 2 to prevent the handle 3 from affecting the removal of the cannula 2, and the handle 3 is convenient for hand-held operation.

[0024] Among them, sliding grooves 4 are provided on the opposite inner sides of the two needle handles 102. One of the sliding grooves 4 extends backward to the handle 3, and a slider 5 is slidably provided in this sliding groove 4. The slider 5 can open the needle handle 102 by sliding in the sliding grooves of the two needle handles 102 to help open the needle body 101, thereby expanding the muscle space.

[0025] Among them, the outer sides of the needle body 101 and the needle handle 102 are both arc-shaped surfaces, which is beneficial for the needle body 101 to adhere to the tissue and facilitate expanding the muscle space.

[0026] Among them, the front end of the slider 5 is an isosceles triangle. When pushing it to slide in the sliding groove 4, using the characteristics of its front-end isosceles triangle, it gradually helps to open the needle handle 102 and thus open the needle body 101. And its surface is provided with protrusions, which is beneficial for hand boosting.

[0027] Among them, the end of the sliding groove 4 where the slider 5 is located is in a closed state to prevent the slider 5 from falling off, and the end of the other sliding groove 4 is in an open state to allow the slider to enter this sliding groove 4.

[0028] It should be noted that the present utility model is an access positioning device for endoscopic thyroidectomy under ultrasonic guidance. During specific operation, under ultrasonic guidance, it punctures into the muscle space through the cannula 2. After puncture, the cannula 2 is removed and the guide needle is left as a positioning mark. The guide needle can be fixed to the tissue through the barbs 6 at its front end to stabilize the guide needle. Then, the slider 5 can be pushed by one hand to make one side of it enter the sliding groove 4 on the opposite side, and thus slide in the two sliding grooves 4. Due to the characteristics of its isosceles triangle, during its forward sliding process, the needle handle 102 can be automatically opened, thereby driving the needle body 101 to open and expanding the muscle space, without the need to keep the entire guide needle open by hand for a long time, reducing the burden on the operator.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for positioning an approach for laparoscopic thyroid surgery under ultrasound guidance, comprising a cannula (2) and a guide needle inserted into the cannula (2), characterized in that: The guide needle is composed of two single needles (1) connected by a pin shaft (7), and the front ends of the two single needles (1) are both provided with barbs (6).

2. The ultrasound-guided laparoscopic thyroid surgery approach positioning device according to claim 1, characterized in that: The single needle (1) is made by integrally connecting a needle body (101) and a needle handle (102) on the opposite side thereof.

3. The ultrasound-guided laparoscopic thyroid surgery approach positioning device according to claim 2, characterized in that: The end of each needle handle (102) is provided with an integrated handle (3).

4. The ultrasound-guided laparoscopic thyroid surgery approach positioning device according to claim 3, characterized in that: The two needle handles (102) are provided with sliding grooves (4) on their opposite inner sides, wherein one side of the sliding groove (4) extends toward the rear of the handle (3), and a sliding block (5) is slidably provided on the side sliding groove (4).

5. The ultrasound-guided laparoscopic thyroid surgery approach positioning device according to claim 2, characterized in that: The outer side surfaces of the needle body (101) and the needle handle (102) are both arc-shaped.

6. The ultrasound-guided laparoscopic thyroid surgery approach positioning device according to claim 4, characterized in that: The front end of the slider (5) is an isosceles triangle, and a protrusion is provided on its surface.

7. The ultrasound-guided laparoscopic thyroid surgery approach positioning device according to claim 4, characterized in that: The end of the slide groove (4) on one side where the slider (5) is located is in a closed state, and the end of the slide groove (4) on the other side is in an open state.

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