Drainage device in thyroid resection

Abstract

The utility model belongs to the technical field of in-vivo drainage instruments, and particularly relates to a drainage device in thyroid resection, which comprises a drainage tube, a positioner and a guider. One end of the drainage tube is provided with a connecting port, and the other end of the drainage tube is closed and provided with a side hole in the side wall; one end of the guider enters the drainage tube through the connecting port; one end, entering the drainage tube, of the guider is round and blunt; the positioner comprises a positioning balloon and a positioning port; the positioning port is communicated with the positioning balloon through a catheter; the positioning balloon is fixedly connected to the outer wall of the drainage tube; the positioning balloon is located in the middle of the drainage tube. The device has the advantages that a hidden subcutaneous tunnel is established, a drainage outlet is transferred from the neck or the oral cavity to hidden parts such as the subclavicle, and internal anchoring and fixing without suture are achieved through a positioner. And the drainage outlet is hidden in the natural wrinkles of the body, so that the beauty idea of the TOETVA operation is perfectly undertaken.

Description

TECHNICAL FIELD

[0001] The utility model belongs to in-vivo drainage instrument technical field, concretely relates to a drainage device in thyroid resection. BACKGROUND

[0002] Thyroid resection is a relatively common endocrine surgery, and indications include malignant thyroid nodules confirmed by fine needle biopsy, thyroid malignancies, Hurthle or follicular cell tumors, long-term follicular lesions or atypical lesions, and intractable thyroid diseases that cannot be clearly identified. However, thyroid resection performed on the neck leaves a large scar on the patient's body surface.

[0003] Currently, transoral endoscopic thyroidectomy via the vestibule approach (TOETVA) achieves a cosmetic effect without scarring the neck, but the postoperative drainage process has become a shortcoming that undermines this effect. There are currently two main drainage methods: cervical drainage: placing a drainage tube through a separate incision in the neck will leave a scar, which seriously violates the original intention of TOETVA surgery to leave no trace, and is poorly accepted by patients. Oral drainage: the drainage tube is directly introduced from the vestibule incision in the mouth, which does not leave a scar on the neck, but there is a risk of retrograde infection, and the tube may affect the healing of the incision in the mouth, resulting in a strong foreign body sensation and poor comfort for the patient. SUMMARY

[0004] To address the above problems, the present application discloses a drainage device for thyroid resection.

[0005] A drainage device for thyroid resection includes a drainage tube, a positioner, and a guide; one end of the drainage tube has a connection port, the other end is closed, and the side wall has a side hole; one end of the guide enters the interior of the drainage tube through the connection port; the end of the guide entering the drainage tube is blunt; the positioner includes a positioning balloon and a positioning port; the positioning port and the positioning balloon are in communication through a catheter; the positioning balloon is fixedly connected to the outer wall of the drainage tube; the positioning balloon is located in the middle of the drainage tube.

[0006] Further, the guide includes a guide needle and a handle; the guide needle and the handle are fixedly connected; the end of the guide needle away from the handle is detachably connected to the drainage tube.

[0007] Further, the side holes are arranged in a circle with the axis of the drainage tube as the center.

[0008] Further, the end of the drainage tube away from the side hole is provided with a side tube; one end of the side tube is in communication with the drainage tube, and the other end is provided with a reservoir.

[0009] Further, the drainage tube further includes a sealing plug; the sealing plug is detachably connected to the connection port.

[0010] Furthermore, a connector is fixedly connected to the side wall of the sealing plug; the end of the connector away from the sealing plug is connected to the connecting end.

[0011] Furthermore, a one-way membrane is provided inside the connection port; the outer side of the one-way membrane is fixedly connected to the inner wall of the connection port, and the inner side extends in the direction of the side hole.

[0012] Furthermore, the unidirectional membranes are uniformly arranged along the axis of the connection port.

[0013] Furthermore, the storage device includes a storage bottle and a stopper; the storage bottle is a cavity with a single opening; the stopper and the opening are detachably connected; the side hole passes through the stopper and enters the interior of the storage bottle.

[0014] Furthermore, the bottle stopper is equipped with an exhaust valve.

[0015] The beneficial effects of this utility model are:

[0016] A concealed subcutaneous tunnel is created, transferring the drainage outlet from the neck or mouth to a hidden location such as below the collarbone. A locator is used to achieve sutureless internal anchoring and fixation. The drainage outlet is hidden in the body's natural folds, perfectly embodying the cosmetic concept of the TOETVA procedure.

[0017] The locator achieves internal fixation without sutures, avoiding the risks of suture-related infections, scarring, and slippage.

[0018] The filling material inside the positioning balloon is suctioned out, causing the balloon to contract. The tube removal process is almost painless, greatly improving the patient experience.

[0019] The entire system has a simple component design, the tunnel establishment process is safe, and it is easy to promote and use in clinical settings. Attached Figure Description

[0020] Fig. 1 A perspective view of a drainage device used during thyroidectomy to implement this utility model;

[0021] Fig. 2 A front view of a thyroidectomy drainage device that implements this utility model;

[0022] Fig. 3 A cross-sectional view of a thyroidectomy drainage device that implements this utility model;

[0023] Fig. 4 A perspective view of another thyroidectomy drainage device that realizes this utility model;

[0024] Fig. 5 A front view of another thyroidectomy drainage device that implements this utility model;

[0025] Fig. 6 A cross-sectional view of another thyroidectomy drainage device that implements this utility model;

[0026] In the diagram, 1 is the drainage tube; 2 is the locator; 3 is the guide; 4 is the reservoir; 11 is the side hole; 12 is the connection port; 13 is the sealing plug; 14 is the side tube; 21 is the positioning port; 22 is the positioning balloon; 31 is the guide needle; 32 is the handle; and 121 is the one-way membrane. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0029] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0030] In this document, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0031] In this document, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] Example 1

[0033] like Figs. 1-3 The illustrated drainage device for thyroidectomy includes a drainage tube 1, a locator 2, and a guide 3. One end of the drainage tube 1 has a connection port 12, and the other end is closed with a side hole 11 on its side wall. One end of the guide 3 enters the interior of the drainage tube 1 through the connection port 12. The end of the guide 3 entering the drainage tube 1 is rounded. The locator 2 includes a positioning balloon 22 and a positioning port 21. The positioning port 21 and the positioning balloon 22 are connected through a catheter. The positioning balloon 22 is fixedly connected to the outer wall of the drainage tube 1. The positioning balloon 22 is located in the middle of the drainage tube 1.

[0034] A concealed subcutaneous tunnel can be created post-surgery, transferring the drainage outlet from the neck or mouth to a hidden location such as below the clavicle. Positioner 2 is used for sutureless internal anchoring and fixation. The drainage outlet is hidden within the body's natural folds, perfectly embodying the cosmetic concept of the TOETVA procedure. The entire system is designed with simple components, the tunnel creation process is safe, and it is easy to promote and use in clinical practice.

[0035] Positioner 2 achieves sutureless internal fixation, avoiding the risks of suture-related infection, scarring, and slippage. The filling material inside the positioning balloon 22 is aspirated, causing the balloon to contract; the tube removal process is virtually painless, greatly improving the patient experience.

[0036] Specifically, the positioning port 21 is equipped with a Luer connector, which connects the positioning port 21 to instruments such as syringes and pressure pumps. The positioning port 21 contains a Luer actuation valve. The Luer actuation valve is a valve based on a Luer connector design; its opening and closing are controlled by inserting or removing the Luer connector. It is commonly used as the terminal connector of balloon catheters, facilitating quick connection and disconnection with medical devices such as syringes and pressure pumps.

[0037] The drainage tube 1 is made of medical-grade silicone with a super-slippery hydrophilic coating to reduce tissue friction. Multiple side holes 11 are provided at the end of the drainage tube 1 furthest from the connection port 12. The side holes 11 are arranged circumferentially around the axis of the drainage tube 1.

[0038] Specifically, the edges of the side holes 11 are streamlined, which effectively prevents tissue adsorption.

[0039] The positioning balloon 22 is located in the middle of the drainage tube 1. During use, the balloon can be positioned approximately 3-5 cm from the skin opening. In the implanted state, a small amount of sterile saline is injected into the positioning balloon 22 through the positioning port 21 and the catheter, causing the balloon to inflate subcutaneously into a flexible disc-shaped structure. This provides reliable anchoring force within the tissue, preventing the drainage tube 1 from being accidentally pulled out. In the removal state, the sterile saline inside the positioning balloon 22 is aspirated through the positioning port 21 and the catheter, allowing the balloon to return to its slender shape and be easily and painlessly removed.

[0040] In some embodiments of this application, the positioning balloon 22 is made of a biocompatible biodegradable polymer material.

[0041] The guide 3 includes a guide needle 31 and a handle 32; the guide needle 31 and the handle 32 are fixedly connected; the end of the guide needle 31 away from the handle 32 is detachably connected to the drainage tube 1. It is used to create a subcutaneous tunnel from the cervical surgical area to concealed areas such as the subclavian or suprasternal notch. The end of the guide needle 31 away from the handle 32 is blunt-tipped; this blunt-tipped design allows for safe blunt dissection of tissue, avoiding damage to blood vessels and nerves.

[0042] Example 2

[0043] like Figs. 4-6 As shown, the difference between this embodiment and Embodiment 1 is that:

[0044] A side tube 14 is provided at the end of the drainage tube 1 furthest from the side hole 11; one end of the side tube 14 is connected to the drainage tube 1, and the other end is provided with a reservoir 4. After the drainage tube 1 enters the patient's body, a small amount of sterile saline is injected into the positioning balloon 22 through the positioning port 21 and the catheter, causing the positioning balloon 22 to inflate and be positioned. Then, the guide device 3 is withdrawn, and the fluid in the patient's body flows out through the drainage tube 1 and enters the interior of the reservoir 4 through the side hole 11. The purpose of this design is to prevent the drainage fluid from spraying out through the connection port 12 and causing contamination during the withdrawal of the guide device 3.

[0045] Preferably, the connection port 12 is provided with a one-way membrane 121 inside; the outer side of the one-way membrane 121 is fixedly connected to the inner wall of the connection port 12, and the inner side extends towards the side hole 11. When the guide 3 enters the interior of the drainage tube 1, the one-way membrane 121 wraps around the outer wall of the guide needle 31 to seal the gap between the one-way membrane 121 and the guide needle 31 and prevent the drainage fluid from seeping out.

[0046] Furthermore, the one-way membranes 121 are evenly arranged along the axis of the connection port 12. The combined action of multiple one-way membranes 121 further prevents the drainage fluid from being ejected through the connection port 12.

[0047] In some embodiments of this application, the drainage tube 1 further includes a sealing plug 13; the sealing plug 13 is detachably connected to the connection port 12. After the guide 3 is withdrawn, the sealing plug 13 is used to seal the connection port 12 to prevent the drainage fluid from flowing out through the connection port 12.

[0048] Specifically, the sealing plug 13 is made of materials such as rubber and silicone. When the sealing plug 13 is inserted into the inside of the drainage port, the sealing plug 13 undergoes plastic deformation, thereby sealing the drainage port to prevent the drainage fluid from seeping out through the drainage port.

[0049] Furthermore, a connector is fixedly connected to the side wall of the sealing plug 13; the end of the connector away from the sealing plug 13 is connected to the connecting end. The function of the connector is to prevent the sealing plug 13 from being lost.

[0050] like Figs. 4-6 As shown, the storage container 4 includes a storage bottle and a stopper; the storage bottle is a cavity with a single opening; the stopper and the opening are detachably connected; the side hole 11 passes through the stopper and enters the interior of the storage bottle.

[0051] In some embodiments of this application, the bottle stopper is provided with an exhaust valve. The sealing valve includes a waterproof and breathable membrane, allowing gas inside the reservoir 4 to escape through the exhaust valve, while preventing drainage fluid inside the reservoir 4 from passing through the exhaust valve. The purpose of this design is to reduce the gas pressure inside the reservoir 4 and prevent high pressure inside the reservoir 4 from blocking drainage fluid inside the drainage tube 1 from entering the reservoir 4.

[0052] The above description is merely a specific embodiment of this application. Under the guidance of the above teachings, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of this application, and the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A drainage device for use in thyroidectomy comprising a drainage tube, a locator and a guide, characterised in that, One end of the drainage tube is provided with a connecting port, the other end is closed and is provided with side holes on the side wall; one end of the guide enters the inside of the drainage tube through the connecting port; the end of the guide entering the drainage tube is round and blunt; the locator includes a positioning balloon and a positioning port; the positioning port and the positioning balloon are in communication through a catheter; the positioning balloon is fixedly connected to the outer wall of the drainage tube; the positioning balloon is located in the middle of the drainage tube.

2. A drainage device for use in thyroidectomy according to claim 1, wherein The guide includes a guide needle and a handle; the guide needle and the handle are fixedly connected; one end of the guide needle away from the handle is detachably connected with the drainage tube.

3. A drainage device for use in thyroidectomy according to claim 1, wherein The side holes are arranged in a circle with the axis of the drainage tube as the center.

4. A drainage device for use in thyroidectomy according to claim 1, wherein One end of the drainage tube away from the side hole is provided with a side tube; one end of the side tube is in communication with the drainage tube, and the other end is provided with a storage reservoir.

5. A drainage device for use in thyroidectomy according to claim 4, wherein, The drainage tube further includes a sealing plug; the sealing plug is detachably connected with the connecting port.

6. A drainage device for use in thyroidectomy according to claim 5, wherein, A connecting piece is fixedly connected to the side wall of the sealing plug; one end of the connecting piece away from the sealing plug is connected with the connecting end.

7. A drainage device for use in thyroidectomy according to claim 4, wherein The inside of the connecting port is provided with a one-way membrane; the outside of the one-way membrane is fixedly connected with the inner wall of the connecting port, and the inside extends in the direction of the side hole.

8. A drainage device for use in thyroidectomy according to claim 7, wherein, The one-way membranes are uniformly arranged along the axis of the connecting port.

9. A drainage device for use in thyroidectomy according to claim 4, wherein, The storage reservoir includes a storage bottle and a bottle plug; the storage bottle is a cavity with only one opening; the bottle plug is detachably connected with the opening; the side hole passes through the bottle plug and enters the inside of the storage bottle.

10. A drainage device for use in thyroidectomy according to claim 9, wherein, An exhaust valve is arranged on the bottle plug.

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