Telescopic puncture outfit for thyroid endoscopic surgery

Abstract

The utility model provides a telescopic puncture outfit for thyroid endoscopic surgery, which comprises a puncture needle, a choke valve, an air injection valve, a sheathing canal and a sleeve, and the choke valve is arranged in the sheathing canal; the gas injection valve is fixedly arranged on the side edge of the opening of the sheath tube; the puncture needle is movably arranged in the gas injection valve and the sheath tube in a penetrating manner; the outer side of a tube body at the lower end of the sheath tube is wrapped with a rubber layer; the sleeve sleeves the outer side of the lower end of the sheath tube in a penetrating manner and comprises a fixing ring and a tube body, and the length of the puncture outfit can be adjusted by adjusting the contact length of the sleeve and the sheath tube; the fixing rings are two semicircular rings and are connected with the pipe body bearing through two same bearings; protrusions are arranged on the tube wall of the inner side of the fixing ring, so that in the operation process, the protrusions on the fixing ring make contact with rubber on the outer side of the lower end tube of the sheath tube by closing the fixing ring, the contact area between the protrusions and the rubber is increased, friction force is improved, the protrusions and the rubber are tightly connected, and then the cannula can be fixed; and the puncture outfit can conveniently reach a position required by an operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a telescopic thyroid endoscopy puncture device. Background Technology

[0002] A thyroid endoscopy trocar is a surgical instrument primarily used for puncture procedures during intra-abdominal surgery. It is commonly used in thyroid endoscopy to create a passageway through the areola, armpit, or oral vestibule to the thyroid gland, allowing the surgeon to insert a endoscope and other surgical instruments.

[0003] Because traditional laparoscopic trocars have a fixed length, if they are too short, they may not be able to reach the surgical site; if they are too long, they are prone to wobbling, affecting the stability of the surgery. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a telescopic thyroid endoscopy puncture device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a telescopic thyroid endoscopic puncture device, comprising a puncture needle, an air-blocking valve, an air-injection valve, a sheath, and a cannula, wherein the air-blocking valve is disposed inside the sheath; the air-injection valve is fixedly disposed on the side of the sheath opening; the puncture needle is movably inserted through the air-injection valve and the sheath; a lower end tube is provided at the lower end of the sheath; the cannula includes a fixing ring and a tube body;

[0006] The retaining ring includes a first bearing, a second bearing, a first retaining half ring, a second retaining half ring, a protrusion, a lever, and a buckle;

[0007] The first fixed half ring and the second fixed half ring are arc-shaped at one end and matched at the other end. The toggle block is set on the side of the opening and closing end of the first fixed half ring, and the buckle is set on the side of the opening and closing end of the second fixed half ring. The positions of the toggle block and the buckle correspond to each other.

[0008] The first bearing and the second bearing are the same size and are fixedly connected to the opening of the pipe body;

[0009] The protrusions are respectively arranged laterally at the middle position of the inner wall of the first fixed half ring and the second fixed half ring;

[0010] The lower end of the sheath is covered with a rubber layer on the outer wall of the tube.

[0011] The inner and outer diameters of the first and second fixed half-rings are the same as the inner and outer diameters of the pipe body.

[0012] Preferably, the tip of the puncture needle is sharp and longer than the length of the sheath.

[0013] Preferably, the length of the sleeve is the same as the length of the lower end of the sheath.

[0014] Preferably, when the retaining ring on the sleeve is fixed at the uppermost end of the lower end of the sheath tube, the lower end of the sleeve and the oblique sectional surface of the lower end of the sheath tube are coplanar.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features a sleeve on the outside of the sheath, allowing the length of the trocar to be adjusted during surgery by extending and retracting the sleeve to control the contact length with the sheath. A retaining ring with a raised inner wall is located at the sleeve opening, and rubber is wrapped around the lower end of the sheath. Closing the retaining ring allows the raised portion of the ring to contact the rubber on the lower end of the sheath, increasing the contact area and friction, resulting in a tighter connection and securing the sleeve. This facilitates the trocar reaching the desired surgical position. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the closed structure of the sleeve according to the first embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the opening structure of the sleeve according to the first embodiment of this utility model.

[0020] Figure 4 This is a schematic diagram of the sheath body of the first embodiment of the present invention.

[0021] Labeling Explanation: 100—Puncture needle; 200—Air valve; 300—Air injection valve; 400—Sheath; 500—Cannula; 401—Lower end tube; 402—Rubber layer; 511—First bearing; 512—Second bearing; 513—First fixing half ring; 514—Second fixing half ring; 515—Protrusion; 516—Pulling block; 517—Snap fastener; 520—Tube body. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0023] Please refer to the reference. Figure 1 , Figure 2 , Figure 3 as well as Figure 4This utility model provides a telescopic thyroid endoscopic puncture device, including a puncture needle 100, an air-blocking valve 200, an air-injection valve 300, a sheath 400, and a cannula 500. The air-blocking valve 200 is disposed inside the sheath 400; the air-injection valve 300 is fixedly disposed on the side of the opening of the sheath 400; the puncture needle 100 is movably inserted through the air-injection valve 300 and the sheath 400; a lower end tube 401 is provided at the lower end of the sheath 400; the cannula 500 includes a fixing ring 510 and a tube body 520.

[0024] like Figure 2 As shown, the fixing ring 510 includes a first bearing 511, a second bearing 512, a first fixing half ring 513, a second fixing half ring 514, a protrusion 515, a lever 516, and a buckle 517.

[0025] The first fixing half-ring 513 and the second fixing half-ring 514 are arc-shaped at one end and matched at the other end, which reduces the gap and unevenness at the connection between the first fixing half-ring 513 and the second fixing half-ring 514, and facilitates the improvement of the accuracy of the fixing ring 510 when fastening. The buckle 517 is set on the side of the opening and closing end of the first fixing half-ring 513, and the lever 516 is set on the side of the opening and closing end of the second fixing half-ring 514. The positions of the lever 516 and the buckle 517 correspond to each other, which can quickly fix the first fixing half-ring 513 and the second fixing half-ring 514 together, preventing the fixing ring 510 from loosening during use, causing the sheath 400 to fall out of the sleeve 500 and affecting the operation.

[0026] The first bearing 511 and the second bearing 512 are the same size and are fixedly connected to the opening of the tube body 520, which increases the connection stability between the first fixed half ring 513 and the second fixed half ring 514 and the tube body 520.

[0027] like Figure 2 , Figure 3 As shown, the protrusion 515 is wavy and is respectively arranged laterally in the middle of the inner wall of the first fixed half ring 513 and the second fixed half ring 514. The wavy surface has a larger actual contact area, which increases the contact area between the protrusion 515 and the rubber layer 402 and improves the friction between the two. This ensures that when the fixed ring 510 is closed, the fixed sleeve 500 will not fall off the lower end tube 401 under the action of friction.

[0028] like Figure 4 As shown, the outer wall of the lower end tube 401 of the sheath 400 is covered with a rubber layer 402. The rubber has excellent elasticity and can increase the contact area with the protrusion 515 through slight deformation, thereby increasing the friction between the two and making the connection between them tight, preventing displacement or detachment during the operation.

[0029] like Figure 2 , Figure 3 As shown, the inner and outer diameters of the first fixed half-ring 513 and the second fixed half-ring 514 are the same as the inner and outer diameters of the pipe body 520, ensuring the overall uniformity of the sleeve 500.

[0030] Better, such as Figure 1 As shown, the puncture needle 100 has a sharp tip and is longer than the sheath 400. This ensures that it can successfully penetrate the subcutaneous tissue structure and reach the target location within the abdominal cavity.

[0031] Better, such as Figure 1 As shown, the length of the cannula 500 is the same as the length of the lower end tube 401 of the sheath 400. This ensures that the length of the trocar can be adjusted to the maximum extent during surgery.

[0032] Better, such as Figure 1 As shown, when the retaining ring 510 on the sleeve 500 is fixed to the uppermost end of the lower end tube 401 of the sheath 400, the lower end of the sleeve 500 and the lower end of the lower end tube 401 are coplanar. This ensures that no additional gap is generated between the lower end of the sleeve 500 and the lower end tube 401, guaranteeing a tight connection between the two.

[0033] During the procedure, the puncture point is first determined at the location of the patient's areola, armpit, or oral vestibule, and the area is disinfected. At this time, the puncture needle 100 of the puncture device is inserted into the puncture device, and the fixing ring 510 on the cannula 500 is fixed to the uppermost end of the lower end tube 401 of the sheath 400. The lower end of the cannula 500 and the oblique cut surface of the lower end of the sheath 400 are coplanar.

[0034] Next, using a puncture device, the tip of the puncture needle 100 is slowly inserted into the puncture site along the tangential direction of the skin. Once the tip of the puncture needle 100 enters the puncture site, a puncture hole is formed. Then, the sheath 400 is advanced into the skin. Because the lower end of the cannula 500 and the lower end of the lower tube 401 of the sheath 400 are coplanar, the lower ends of the sheath 400 and the lower ends of the cannula 500 enter the skin. The puncture needle 100 is then withdrawn to avoid damage to internal tissues. Next, the latch 517 is opened, and the lever 516 on the second fixing half-ring 514 and the latch 517 on the first fixing half-ring 513 are moved. Since the first bearing 511 and the second bearing 512 are fixedly connected to the tube body 520, the first fixing half-ring 513 and the second fixing half-ring 514 can be moved separately. The first bearing 511 and the second bearing 512 are opened outwards. At this time, the sheath 400 can be adjusted by moving up and down within the sleeve 500 to adjust the length of the trocar. Once the appropriate length is reached, the first fixing half ring 513 and the second fixing half ring 514 are fastened with a buckle 517. At this time, the inner protrusion 515 contacts the rubber layer 402 on the outer side of the lower tube 401. The rubber has excellent elasticity and can increase the contact area with the protrusion 515 through slight deformation. Furthermore, the design of the protrusion 515 also increases the contact area with the rubber layer 402, thereby improving the friction between the two and making them tightly connected and not easy to slip off. This ensures that the length of the trocar can reach the position required during the operation, avoiding the trocar being too short or too long, which would affect the operation.

[0035] After the procedure, the puncture device is slowly removed, pressure is applied to the puncture site, the puncture area is cleaned, and a sterile dressing is applied. The patient's vital signs and the puncture site are then observed to ensure there are no complications.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A telescopic thyroid endoscopic puncture device, comprising a puncture needle (100), a gas-blocking valve (200), an air-injection valve (300), a sheath (400), and a cannula (500), wherein the gas-blocking valve (200) is disposed within the sheath (400); the air-injection valve (300) is fixedly disposed on the side of the opening of the sheath (400); the puncture needle (100) is movably inserted through the air-injection valve (300) and the sheath (400); and a lower end tube (401) is provided at the lower end of the sheath (400), characterized in that: The sleeve (500) includes a retaining ring (510) and a tube body (520); The retaining ring (510) includes a first bearing (511), a second bearing (512), a first retaining half ring (513), a second retaining half ring (514), a protrusion (515), a lever (516), and a buckle (517). The first fixed half ring (513) and the second fixed half ring (514) are arc-shaped at one end and matched at the other end. The lever (516) is located on the side of the opening and closing end of the first fixed half ring (513), and the buckle (517) is located on the side of the opening and closing end of the second fixed half ring (514). The positions of the lever (516) and the buckle (517) correspond to each other. The first bearing (511) and the second bearing (512) are the same size and are fixedly connected to the opening of the tube body (520); The protrusions (515) are respectively arranged laterally at the middle position of the inner wall of the first fixed half ring (513) and the second fixed half ring (514); The lower end tube (401) of the sheath (400) is covered with a rubber layer (402) on the outer wall of the tube. The inner and outer diameters of the first fixed half-ring (513) and the second fixed half-ring (514) are the same as the inner and outer diameters of the pipe body (520).

2. The telescopic thyroid endoscopic trocar as described in claim 1, characterized in that: The puncture needle (100) is longer than the sheath (400).

3. The telescopic thyroid endoscopic trocar as described in claim 1, characterized in that: The length of the sleeve (500) is the same as the length of the lower end tube (401) of the sheath (400).

4. The telescopic thyroid endoscopic trocar as described in claim 1, characterized in that: When the fixing ring (510) on the sleeve (500) is fixed at the uppermost end of the lower end tube (401) of the sheath (400), the lower end of the sleeve (500) and the oblique cut surface of the lower end of the sheath (400) are coplanar.

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