Drainage device applied to thyroid resection through stomatoscope

Abstract

The utility model provides a drainage device applied to a stomatoscope thyroid resection operation. The drainage device comprises a skin puncture device, a drainage tube indwelling device, a drainage tube guiding device, a guide wire implanting device, a guide wire, a drainage tube and a drainage pot. The skin puncture device comprises a spine section and an operation section. The drainage tube indwelling device is of a tubular structure; the drainage tube guider is of a hollow cylinder structure with two open ends, and a conical structure I is arranged at the front end of the drainage tube guider; the guide wire is a double-soft-head guide wire, the tail end of the guide wire is hemispherical, and the front end of the guide wire is J-shaped; the drainage tube is of a tubular structure with two open ends; the outer tube wall of the front end of the drainage tube is provided with a marking line and a side hole; the guide wire implanting device comprises a circular structure and a guide wire implanting head; the guide wire implanting head is of a conical structure II with two open ends; the drainage pot is an oval pot body. According to the technical scheme, a thin and soft silicon rubber drainage tube can be accurately fed into a postoperative residual cavity at a time.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically, especially, a kind of drainage device applied to transoral endoscopic thyroidectomy. BACKGROUND

[0002] Thyroid disease is clinically common and frequently-occurring disease, surgical operation is the main means for treating thyroid disease, endoscopic thyroidectomy is currently commonly used operation, the operation has small incision, surgical effect is exact, postoperative recovery is fast etc., simultaneously without leaving obvious scar on patient's body.

[0003] With the continuous improvement of people's high-quality, high-precision, low-trauma medical needs, traditional surgical method for treating thyroid disease cannot fully meet the needs of patients. More patients not only pay attention to the treatment of thyroid disease, but also pay more attention to the cosmetic effect and functional recovery after thyroid surgery. Therefore, most patients have a great demand for transoral endoscopic thyroid tumor resection when receiving thyroid surgery treatment, which has increased significantly year by year.

[0004] However, since the incision of such minimally invasive surgery is located in the oral vestibule, not only the surgical incision is small, but also the incision is far away from the operation area, and postoperative drainage effectiveness is needed to judge whether the intraoperative hemostasis is complete, the operator can only use a puncture device with a maximum diameter of 10mm to perform gland resection, lymph node dissection, suturing and hemostasis in an approximately closed space, and a silicone drainage tube with a diameter of about 2.4mm-2.6mm needs to be placed in the thyroid residual cavity after surgery to judge whether the intraoperative hemostasis is complete and to reduce the accumulation of liquid in the surgical site; since the drainage tube used is thin and soft, to achieve a satisfactory catheter placement position and direction, the traditional catheter placement method usually needs to repeatedly place the drainage tube and repeatedly adjust the direction of the drainage tube under non-direct vision conditions, which not only increases the operation time, but also increases the re-injury of blood vessels, tissues and nerves at the surgical site caused by repeated placement of the drainage tube. SUMMARY

[0005] According to the technical problems of the traditional drainage device used in transoral endoscopic thyroidectomy, a drainage device applied to transoral endoscopic thyroidectomy is provided.

[0006] The technical means adopted by the utility model are as follows:

[0007] A drainage device applied to transoral endoscopic thyroidectomy, comprising a skin puncture device, a drainage tube placement device, a drainage tube guide, a guide wire implanting device, a guide wire, a drainage tube and a drainage pot.

[0008] The skin piercer comprises a sharp segment and an operation segment, the sharp segment has a sharp structure at the front end, the skin piercer is used to pierce the skin and subcutaneous tissue to the surgical cavity by the sharp structure and then be taken out, and the skin piercer establishes a channel for the drainage tube introducer to access the surgical cavity;

[0009] The drainage tube introducer is a hollow tubular structure, which is used to be inserted into the channel established by the skin piercer;

[0010] The drainage tube guide is a cylindrical structure with hollow interior and open ends, and a conical structure I with a blunt head is arranged at the front end of the cylindrical structure;

[0011] The guide wire is a double-soft-tip guide wire, the end is hemispherical, and the front end is J-shaped;

[0012] The drainage tube is a tubular structure with open ends, the end of the drainage tube guide is detachably connected to the front end opening of the drainage tube, a mark line that can be developed under X-ray is arranged on the outer side wall of the front end of the drainage tube, and a plurality of side openings are arranged in a staggered manner;

[0013] The guide wire implanting device comprises a hollow annular structure and a guide wire implanting head; the annular structure is used to place the guide wire; a guide wire inlet and a guide wire outlet are oppositely arranged on the annular structure, and the guide wire implanting head is installed on the guide wire outlet; the guide wire implanting head is a conical structure II with open ends, and the large-diameter end of the conical structure II faces the guide wire outlet;

[0014] The guide wire can be inserted into the annular structure through the guide wire inlet, placed in the annular structure in a ring shape, and passed through the guide wire outlet of the guide wire implanting head; the guide wire implanting device is used to implant the guide wire into the drainage tube through the guide wire implanting head;

[0015] After the end of the drainage tube guide is installed on the front end of the drainage tube, the guide wire implanted in the drainage tube can pass through the drainage tube and the drainage tube guide in sequence, the J-shaped front end of the guide wire is used to be hooked and fixed from the front end opening of the conical structure I; the drainage tube guide is used to guide the guide wire and the drainage tube to reach the surgical cavity by being inserted into the drainage tube introducer;

[0016] The drainage pot is an elliptical pot body, a drainage port and an exhaust port are arranged at the top end of the pot body, a one-way valve for detachable connection with the end of the drainage tube is arranged on the drainage port, and a sealing plug is detachably arranged on the exhaust port.

[0017] Further, the outer surface of the operation segment is provided with a raised structure for increasing friction.

[0018] Further, the surface of the drainage tube guide is processed by sanding.

[0019] Further, in the drainage tube guide, the diameter of the large-diameter end of the conical structure I is larger than the diameter of other parts of the cylindrical structure.

[0020] Further, seven oval side openings are formed on the outer tube wall of the front end of the drainage tube.

[0021] Further, two marker lines are provided on the outer tube wall of the front end of the drainage tube, which are used in cooperation with the observation of the endoscope to determine whether the drainage tube reaches the designated position in the surgical cavity.

[0022] Further, the skin piercer, the drainage tube guide, and the guide wire are all made of medical stainless steel; the part of the drainage tube placer inserted into the channel is made of medical stainless steel, and the part of the end not inserted into the channel is made of PVC; the guide wire implant is made of PVC; the drainage tube and the drainage pot are both made of silicone rubber.

[0023] Further, the length of the skin piercer is 70-80 mm, the part between the sharp structure and the operation section is a cylindrical structure with a diameter of 3.5-3.7 mm, and the operation section is a cylindrical structure with a diameter of 9-10 mm.

[0024] The length of the drainage tube placer is 70-80 mm, the narrowest part of the inner diameter is 3.5-3.7 mm, and the maximum diameter of the end is 9-10 mm.

[0025] The length of the drainage tube guide is 25-26 mm, and the inner diameter is 1.9-2.1 mm; the diameter of the large-diameter end of the conical structure I is 2.6-2.8 mm, and the diameter of other parts of the cylindrical structure is 2.2-2.4 mm.

[0026] The diameter of the circular ring structure of the guide wire implant is 140-145 mm, and the inner diameter of the guide wire implant head is 3.1-3.3 mm.

[0027] The length of the guide wire is 790-800 mm, and the diameter is 0.8-1.0 mm.

[0028] The length of the drainage tube is 600-620 mm, the inner diameter is 1.8-2.0 mm, and the outer diameter is 2.4-2.6 mm.

[0029] The height of the pot body of the drainage pot is 105-115 mm, the width is 55-60 mm, and the maximum volume is 100 ml.

[0030] Compared with the prior art, the utility model has the following advantages:

[0031] The drainage device applied to the transoral endoscopic thyroidectomy has the drainage tube placing device, the drainage tube guide, the guide wire implanting device and other structures, can realize the one-time accurate and error-free feeding of the thin and soft silicone rubber drainage tube into the residual cavity after the operation, makes the drainage tube placing process operation simple and easy to maintain, reduces the catheterization difficulty and the catheterization risk while guaranteeing the effectiveness and accuracy of the drainage tube placement, and can obviously shorten the operation time and reduce the patient treatment cost.

[0032] Based on the above reasons, the utility model can be widely popularized in the field of medical instruments. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0034] Figure 1 It is the skin piercer structural schematic view of the utility model.

[0035] Figure 2 It is the drainage tube placing device structural schematic view of the utility model.

[0036] Figure 3 It is the drainage tube guide structural schematic view of the utility model.

[0037] Figure 4 It is the guide wire implanting device structural schematic view of the utility model.

[0038] Figure 5 It is the guide wire structural schematic view of the utility model.

[0039] Figure 6 It is the drainage tube structural schematic view of the utility model.

[0040] Figure 7 It is the drainage pot structural schematic view of the utility model.

[0041] In the drawing: 1, skin piercer;2, drainage tube placing device;3, drainage tube guide;4, guide wire implanting device;5, guide wire;6, drainage tube;7, drainage pot;71, one-way valve;72, sealing plug. DETAILED DESCRIPTION

[0042] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0044] It should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0045] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not limiting. It should be understood that the various parts shown in the drawings are not necessarily drawn to scale in proportion. The technology, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0047] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0048] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0049] Example 1

[0050] like Figures 1-7 As shown, this utility model provides a drainage device for transoral endoscopic thyroidectomy, including a skin puncture device 1, a drainage tube inserter 2, a drainage tube guide 3, a guide wire implanter 4, a guide wire 5, a drainage tube 6, and a drainage container 7.

[0051] The skin piercing device 1 includes a spike section and an operating section. The tip of the spike section has a spike structure. The spike structure of the skin piercing device 1 is sharp and used to break the skin. The skin piercing device 1 is used to pierce the skin and subcutaneous tissue through the spike structure to reach the surgical cavity (postoperative residual cavity) and then be taken out during drainage tube placement, thus establishing a channel for the drainage tube placement device 2 to enter the surgical cavity.

[0052] The drainage tube inserter 2 is a hollow tubular structure used to insert into the channel established by the skin puncture device 1; the skin puncture device 1 and the drainage tube inserter 2 are used sequentially during the operation and will not overlap;

[0053] The drainage tube guide 3 is a hollow cylindrical structure with openings at both ends. The front end of the cylindrical structure is provided with a blunt-tipped conical structure I. The conical structure I at the front end of the drainage tube guide 3 can play a directional guiding role, so that the drainage tube guide 3 can pass through the drainage tube inserter 2 more smoothly during use. At the same time, the blunt-tipped head of the conical structure I can prevent injury to the tissues, blood vessels, and nerves in the residual cavity during use.

[0054] The guidewire 5 is a double-tipped soft-tipped guidewire with a hemispherical end and a J-shaped tip. The guidewire 5 can be an existing medical guidewire, consisting of a core wire and a winding wire. The double-tipped soft-tipped design is to better protect tissues, blood vessels, and nerves during catheter placement, preventing puncture wounds. The hemispherical end design prevents the guidewire 5 from being too sharp, avoiding punctures to the skin of the patient's hand during use and preventing the spread of bloodborne infectious diseases (hepatitis B, HIV, syphilis, etc.) (occupational diseases). The J-shaped tip design allows the guidewire 5 to be better secured at the opening of the drainage tube guide 3, preventing slippage during implantation.

[0055] The drainage tube 6 is a tubular structure with openings at both ends. The end of the drainage tube guide 3 is detachably connected to the front opening of the drainage tube 6. The outer wall of the front end of the drainage tube 6 is provided with a marking line that can be visualized under X-ray and has several side openings that are staggered. The side openings are used to prevent the tube from being blocked, keep the drainage tube 6 unobstructed, and reduce the possibility of tube breakage.

[0056] The guidewire implanter 4 includes a hollow annular structure and a guidewire implantation head; the interior of the annular structure is used to place the guidewire 5; the annular structure has a guidewire inlet and a guidewire outlet opposite to each other, and the guidewire implantation head is installed at the guidewire outlet; the guidewire implantation head is a conical structure II with openings at both ends, and the large-diameter end of the conical structure II faces the guidewire outlet.

[0057] The guidewire 5 can extend into the annular structure through the guidewire inlet, be placed in a ring shape inside the annular structure, and pass through the guidewire implantation head through the guidewire outlet; the guidewire implanter 4 is used to implant the guidewire 5 into the drainage tube 6 through the guidewire implantation head; the guidewire implantation head is designed as a conical structure II, which can play a directional guiding role, so that the guidewire implantation head can be inserted into the drainage tube 6 more smoothly, thereby facilitating the implantation of the guidewire 5; for easy handling, the guidewire implanter 4 is designed as an annular structure, and the guidewire implantation head is designed as a conical shape, which makes it easier to align with the smaller diameter drainage tube guide 3 during implantation.

[0058] After the end of the drainage tube guide 3 is installed at the front end of the drainage tube 6, the guide wire 5 implanted in the drainage tube 6 can pass through the drainage tube 6 and the drainage tube guide 3 in sequence. The J-shaped front end of the guide wire 5 is used to pass through the front opening of the conical structure I and hook and fix it. The drainage tube guide 3 is used to guide the guide wire 5 and the drainage tube 6 to the surgical cavity by inserting the drainage tube placement device 2.

[0059] The drainage vessel 7 has an elliptical body with a drainage port and an exhaust port at the top. The drainage port is equipped with a one-way valve 71 for detachable connection to the end of the drainage tube 6, and the exhaust port is detachably equipped with a sealing plug 72.

[0060] Furthermore, the outer surface of the operating section is provided with a protruding structure to increase friction, and the skin piercing device 1 is operated by holding the operating section.

[0061] Furthermore, the surface of the drainage tube guide 3 is treated with a frosting process to increase friction. During the operation, there will be a large amount of blood, body fluid, irrigation fluid, and the patient's own fat tissue. The rough surface is more conducive to the gripping and positioning of the laparoscopic forceps and prevents slippage when passing through the drainage tube inserter 2.

[0062] Furthermore, in the drainage tube guide 3, the diameter of the large-diameter end of the conical structure I is larger than the diameter of other parts of the cylindrical structure. The latter part is thinner so that the end of the drainage tube guide 3 can be more easily inserted into the drainage tube 6. The large-diameter end of the conical structure I is thicker so as to increase the weight of the conical structure I, which is beneficial for the gripping of the forceps under the endoscope and the positioning of the drainage tube 6 in the residual cavity.

[0063] Furthermore, seven elliptical side openings are provided on the outer wall of the front end of the drainage tube 6.

[0064] Furthermore, two marking lines are provided on the outer wall of the front end of the drainage tube 6, which are used to determine whether the drainage tube 6 has reached the designated position in the surgical cavity in conjunction with the observation of the endoscope.

[0065] Furthermore, the skin puncture device 1, the drainage tube guide 3, and the guide wire 5 are all made of medical-grade stainless steel; the portion of the drainage tube inserter 2 inserted into the channel is made of medical-grade stainless steel, facilitating its passage through the skin and subcutaneous tissue, while the portion not inserted into the channel is made of transparent PVC, allowing for easy observation of the insertion status and any bleeding from punctured blood vessels; the guide wire implanter 4 is made of PVC; and the drainage tube 6 and the drainage container 7 are both made of silicone rubber.

[0066] Furthermore, the skin piercing device 1 has a length of 70mm-80mm, the portion of the spiked section located between the spiked structure and the operating section is a cylindrical structure with a diameter of 3.5mm-3.7mm, and the operating section is a cylindrical structure with a diameter of 9mm-10mm;

[0067] The length of the drainage tube inserter 2 is 70mm-80mm, the narrowest part of the inner diameter is 3.5mm-3.7mm, and the maximum diameter at the end is 9mm-10mm;

[0068] The length of the drainage tube guide 3 is 25mm-26mm, and the inner diameter is 1.9mm-2.1mm; the diameter of the large diameter end of the conical structure I is 2.6mm-2.8mm, and the diameter of the other parts of the cylindrical structure is 2.2mm-2.4mm;

[0069] The diameter of the annular structure of the guidewire implanter 4 is 140mm-145mm, and the inner diameter of the guidewire implantation head is 3.1mm-3.3mm.

[0070] The guide wire 5 has a length of 790mm-800mm and a diameter of 0.8mm-1.0mm;

[0071] The drainage tube 6 has a length of 600mm-620mm, an inner diameter of 1.8mm-2.0mm, and an outer diameter of 2.4mm-2.6mm;

[0072] The diversion vessel 7 has a height of 105mm-115mm, a width of 55mm-60mm, and a maximum volume of 100ml.

[0073] Preferably, the skin piercing device 1 has a length of 80 mm, the portion of the spiked section located between the spiked structure and the operating section is a cylindrical structure with a diameter of 3.6 mm, and the operating section is a cylindrical structure with a diameter of 10 mm;

[0074] The drainage tube inserter 2 is 80mm long, with the narrowest part of the inner diameter being 3.6mm and the maximum diameter at the end being 10mm;

[0075] The drainage tube guide 3 has a length of 26mm-26mm and an inner diameter of 2.0mm; the large-diameter end of the conical structure I has a diameter of 2.7mm, and the diameter of the other parts of the cylindrical structure is 2.4mm.

[0076] The diameter of the annular structure of the guidewire implanter 4 is 143.3 mm, and the inner diameter of the guidewire implantation head is 3.2 mm.

[0077] The guide wire 5 is 800 mm long and 0.9 mm in diameter;

[0078] The drainage tube 6 is 600mm long, has an inner diameter of 1.8mm, and an outer diameter of 2.5mm; the first marking line at the front end of the drainage tube 6 is located 90mm from the front end, and the second marking line is located 140mm from the front end; the hole spacing between two adjacent side openings is 14mm-16mm.

[0079] The diversion vessel 7 has a height of 110mm and a width of 55.3mm.

[0080] This invention is applied to transoral endoscopic thyroidectomy. To address the requirements of effectiveness and precision in catheter placement, as well as the need to avoid secondary damage to the surgical site, a specialized directional guidance method is used for catheter placement.

[0081] The procedure for inserting a drainage tube using the drainage device described in this utility model for transoral endoscopic thyroidectomy is as follows:

[0082] 1. At the suprasternal notch, use a skin puncture device 1 to puncture the skin and subcutaneous tissue to reach the surgical cavity and then remove it to create a channel for the drainage tube placement device 2 to enter the surgical cavity;

[0083] 2. Insert the drainage tube inserter 2 through the skin puncture site and extend it into the surgical cavity through the channel, with an insertion length of approximately 30mm.

[0084] 3. Connect the end of the drainage tube guide 3 to the front opening of the drainage tube 6;

[0085] 4. Insert the guidewire implantation head of the guidewire implanter 4 into the end of the drainage tube 6. Manually push the guidewire 5 placed in the guidewire implanter 4 to implant the guidewire 5 into the drainage tube 6, and then pass through the drainage tube 6 and the drainage tube guide 3 in sequence, so that the J-shaped front end passes out from the front opening of the conical structure I of the drainage tube guide 3 and is hooked and fixed. After implanting the guidewire 5, the guidewire implanter 4 can be removed.

[0086] 5. Insert the drainage tube guide 3 and drainage tube 6 with the guide wire 5 into the drainage tube placement device 2 through the conical structure I of the drainage tube guide 3, and send the drainage tube guide 3 and drainage tube 6 with the guide wire 5 into the surgical cavity along the drainage tube placement device 2.

[0087] 6. When the first marking line at the tip of the drainage tube 6 is visible under the endoscope (and can be visualized under X-ray), remove the guide wire 5 through the end of the drainage tube 6; under the endoscope, the length of the drainage tube 6 can be determined according to the needs of the operation by using the two marking lines on the drainage tube 6.

[0088] 7. Pull the drainage tube inserter 2, which is located outside the drainage tube 6, out of the channel and remove it from the rear end of the drainage tube 6;

[0089] 8. Using laparoscopic surgical instruments (forceps), grasp the drainage tube guide 3 and insert the drainage tube 6 into the intended placement cavity of the thyroid remnant.

[0090] 9. Remove the drainage tube guide 3 from the front end of the drainage tube 6 and take it out through the trocar; (The surgical wound of transoral endoscopic thyroidectomy is a semi-open wound. During the operation, a trocar is inserted into the wound. The trocar is a channel used to connect the surgical cavity to the outside and to place or remove items from the surgical cavity. In this application, the drainage tube guide 3 can be clamped with endoscopic forceps and then removed from the trocar.)

[0091] 10. Adjust the position and length of drainage tube 6, and fix drainage tube 6 in place;

[0092] 11. Connect the end of the drainage tube 6 tightly to the one-way valve of the drainage bottle 7;

[0093] 12. Open the sealing plug of the drainage bottle 7 to release some air, so that the drainage bottle 7 is in a negative pressure state, and then install the sealing plug;

[0094] 13. Finally, the placement of drainage tube 6 is completed.

[0095] The drainage device described in this invention, applied to transoral endoscopic thyroidectomy, can accurately and precisely insert a thin, soft silicone rubber drainage tube into the postoperative residual cavity in one go, according to the needs of the surgery, through structures such as a drainage tube inserter, a drainage tube guide, and a guide wire implanter. This makes the drainage tube insertion process simple and easy to maintain. While ensuring the effectiveness and accuracy of drainage tube insertion, it also reduces the difficulty and risk of insertion, and can significantly shorten the operation time and reduce the patient's treatment costs.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drainage device for use in transoral endoscopic thyroidectomy, characterized in that, Includes skin puncture device, drainage tube inserter, drainage tube guide, guide wire implanter, guide wire, drainage tube, and drainage bottle; The skin piercing device includes a spike section and an operating section. The tip of the spike section has a spike structure. The skin piercing device is used to pierce the skin and subcutaneous tissue through the spike structure to reach the surgical cavity and then be taken out, thus establishing a channel for the drainage tube placement device to enter the surgical cavity. The drainage tube inserter is a hollow tubular structure used to insert into the channel established by the skin puncture device; The drainage tube guide is a cylindrical structure that is hollow inside and open at both ends. The front end of the cylindrical structure is provided with a conical structure I with a blunt head. The guidewire is a double-tipped soft-tip guidewire with a hemispherical end and a J-shaped tip. The drainage tube is a tubular structure with openings at both ends. The end of the drainage tube guide is detachably connected to the front opening of the drainage tube. The outer wall of the front end of the drainage tube is provided with a marking line that can be visualized under X-ray and has several side openings that are staggered. The guidewire implanter includes a hollow annular structure and a guidewire implantation head; the interior of the annular structure is used to place the guidewire; the annular structure has a guidewire inlet and a guidewire outlet opposite to each other, and the guidewire implantation head is installed at the guidewire outlet; The guidewire implantation head is a conical structure II with openings at both ends, and the large-diameter end of the conical structure II faces the guidewire outlet; The guidewire can extend into the interior of the annular structure through the guidewire inlet, be placed in a ring shape inside the annular structure, and pass through the guidewire implantation head through the guidewire outlet; The guidewire implanter is used to implant the guidewire into the drainage tube through the guidewire implantation head; After the end of the drainage tube guide is installed at the front end of the drainage tube, the guide wire implanted in the drainage tube can pass through the drainage tube and the drainage tube guide in sequence. The J-shaped front end of the guide wire is used to pass through the front opening of the conical structure I and hook and fix it. The drainage tube guide is used to guide the guide wire and the drainage tube to the surgical cavity through the insertion device of the drainage tube. The drainage vessel has an elliptical body with a drainage port and an exhaust port at the top. The drainage port is equipped with a one-way valve for detachable connection to the end of the drainage tube, and the exhaust port is detachably equipped with a sealing plug.

2. The drainage device for transoral endoscopic thyroidectomy according to claim 1, characterized in that, The outer surface of the operating section is provided with a raised structure to increase friction.

3. The drainage device for transoral endoscopic thyroidectomy according to claim 1, characterized in that, The surface of the drainage tube guide is treated with a frosting process.

4. The drainage device for transoral endoscopic thyroidectomy according to claim 1, characterized in that, In the drainage tube guide, the diameter of the large-diameter end of the conical structure I is larger than the diameter of other parts of the cylindrical structure.

5. The drainage device for transoral endoscopic thyroidectomy according to claim 1, characterized in that, The drainage tube has seven elliptical side openings on its outer wall at the front end.

6. The drainage device for transoral endoscopic thyroidectomy according to claim 1, characterized in that, Two marking lines are provided on the outer wall of the front end of the drainage tube, which are used to determine whether the drainage tube has reached the designated position in the surgical cavity in conjunction with the observation of the endoscope.

7. The drainage device for transoral endoscopic thyroidectomy according to claim 1, characterized in that, The skin puncture device, the drainage tube guide, and the guidewire are all made of medical-grade stainless steel; the portion of the drainage tube inserter that is inserted into the channel is made of medical-grade stainless steel, while the portion of the tube not inserted into the channel is made of PVC; the guidewire implanter is made of PVC. Both the drainage tube and the drainage container are made of silicone rubber.

8. The drainage device for transoral endoscopic thyroidectomy according to claim 1, characterized in that, The skin piercing device is 70mm-80mm long, the portion of the spiked section between the spiked structure and the operating section is a cylindrical structure with a diameter of 3.5mm-3.7mm, and the operating section is a cylindrical structure with a diameter of 9mm-10mm. The length of the drainage tube inserter is 70mm-80mm, the narrowest part of the inner diameter is 3.5mm-3.7mm, and the maximum diameter at the end is 9mm-10mm; The length of the drainage tube guide is 25mm-26mm, and the inner diameter is 1.9mm-2.1mm; the diameter of the large diameter end of the conical structure I is 2.6mm-2.8mm, and the diameter of the other parts of the cylindrical structure is 2.2mm-2.4mm; The diameter of the annular structure of the guidewire implanter is 140mm-145mm, and the inner diameter of the guidewire implantation head is 3.1mm-3.3mm; The guidewire has a length of 790mm-800mm and a diameter of 0.8mm-1.0mm; The drainage tube has a length of 600mm-620mm, an inner diameter of 1.8mm-2.0mm, and an outer diameter of 2.4mm-2.6mm; The drainage vessel has a height of 105mm-115mm, a width of 55mm-60mm, and a maximum volume of 100ml.

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