Auxiliary device for fixing drainage tube in foramen endoscope operation

Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to an auxiliary device for fixing an orifice endoscope operation drainage tube, comprising: a guide tube, the rear end of which is provided with a connecting handle; the drainage tube is guided to reach an in-vivo target position through the small incision; an inflatable air bag is arranged at the front end of the guide pipe and connected with an air source connector arranged on the connecting handle through an inflation pipe. After the head end of the guide tube penetrates into the head end of the drainage tube, the air bag can be inflated and expanded, and the guide tube and the drainage tube are connected and fixed; the front end of the guide tube is of a bendable structure, and the head end of the drainage tube is driven to bend through the bendable structure. Through the accurate guiding function of the guiding tube and the flexibility of the bendable structure, the positioning operation of the auxiliary drainage tube can meet the high-precision requirement of minimally invasive surgery, the problems caused by small incision and limited operation space in the insertion process of a traditional drainage tube are effectively solved, and the success rate and safety of the surgery are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an auxiliary device for fixing a drainage tube in a percutaneous endoscopic surgery. Background Art

[0002] In modern surgical operations, especially minimally invasive surgeries such as laparoscopic and thoracoscopic surgeries, due to the adoption of small incision techniques, the requirements for postoperative drainage have become more stringent and complex. The traditional methods of placing drainage tubes face multiple challenges in these surgeries. The main reason is that the small incisions in minimally invasive surgeries limit the operating space for the drainage tubes and also affect their stability and functionality in the body.

[0003] Minimally invasive surgeries are usually performed through incisions with a diameter of only about 2 cm. Although such small incisions can significantly reduce surgical trauma and accelerate the recovery time, they also make the insertion and positioning of the drainage tubes extremely challenging. The material of the drainage tube is usually relatively soft, designed to avoid damage to tissues and organs. However, this soft characteristic becomes a disadvantage in the small incision scenario because it is difficult for surgeons to accurately push it to a specific target position inside the body, such as the fluid accumulation area or the area where fluid accumulation may occur after surgery. Therefore, it is difficult for the existing technologies to ensure that the drainage tube can reach the predetermined anatomical position smoothly and precisely through the small incision during the operation.

[0004] Even if the drainage tube is successfully delivered to the target position under visual conditions, how to ensure its stability in the body after the operation is still a clinical problem. Improper fixation may lead to the displacement of the drainage tube, which not only reduces the drainage effect but may also cause further complications. For example, poor drainage can lead to fluid accumulation, causing infection or delayed healing. In addition, the change of the patient's body position after the operation, such as from lying in bed to standing up or turning over, will exert a force on the drainage tube and may cause a change in its position. Therefore, a fixation device that can firmly support the drainage tube under various postoperative body positions is the key to ensuring the curative effect.

[0005] To solve the above problems, the present invention proposes an auxiliary device for fixing a drainage tube in a percutaneous endoscopic surgery, which helps surgeons accurately place the drainage tube to the target position and maintains the drainage tube at a predetermined depth and position through a reliable fixation mechanism. Summary of the Invention

[0006] The purpose of the present invention is to provide an auxiliary device for fixing a drainage tube in a percutaneous endoscopic surgery to effectively solve the existing problems.

[0007] To achieve the above technical purpose and reach the above technical effect, the present invention is realized through the following technical solutions:

[0008] An auxiliary device for fixing a drainage tube in a percutaneous endoscopic surgery, comprising:

[0009] The guiding tube is slender and tubular, with a connecting handle at the rear end; it is used to guide the drainage tube to reach the target position in the body through a small incision;

[0010] The front end of the guiding tube is provided with an inflatable airbag, and the airbag is connected to the air source interface provided on the connecting handle through an air filling tube; after the head end of the guiding tube penetrates into the head end of the drainage tube, the airbag can be inflated and expanded to connect and fix the guiding tube and the drainage tube;

[0011] The front end of the guiding tube is a bendable structure, which drives the head end of the drainage tube to bend through the bendable structure;

[0012] At the connection between the guiding tube and the connecting handle, there are a connecting plug and a connecting buckle for connecting the drainage tube; the longitudinal position of the drainage tube is fixed by mechanical cooperation or magnetic cooperation. After the airbag is inflated and fixed, the connecting plug and the connecting buckle cooperate to prevent the drainage tube from sliding longitudinally and ensure that it maintains a predetermined position during various body position changes after the operation.

[0013] Furthermore, one end of the connecting buckle is provided with a protruding threaded sleeve, and the threaded sleeve is provided with a plurality of slots and is threadedly connected to the provided fastening knob, so that after the fastening knob is screwed in, it tightens to axially fix the drainage tube; the other end of the connecting buckle is provided with an adhesive dressing, and the connecting buckle is fixed to the skin surface at the drainage opening through the adhesive dressing.

[0014] The beneficial effects of the present invention:

[0015] By designing a slender guiding tube and integrating a bendable structure at its front end, the present invention enables the drainage tube to accurately reach the target anatomical position during the small incision operation of minimally invasive surgery. The shape and size of the guiding tube strictly match the characteristics of minimally invasive surgery, and its tubular diameter is small, facilitating passage through the drainage tube. At the same time, the front end of the guiding tube is provided with a bendable structure composed of multiple rigid links, which can be flexibly adapted to complex anatomical structures in the body, such as tortuous channels, deep lesions or fluid accumulation areas, through the dynamic adjustment of the embedded control wire and spring parts.

[0016] Through the precise guiding function of the guiding tube and the flexibility of the bendable structure, the positioning operation of the drainage tube can meet the high-precision requirements of minimally invasive surgery, especially having obvious advantages in complex anatomical regions. Real-time image feedback further reduces the error in the selection of the drainage path, making the positioning more accurate and efficient. Generally speaking, the present invention effectively solves the problems caused by the small incision and limited operation space during the insertion of the traditional drainage tube, and greatly improves the success rate and safety of the operation.

[0017] The present invention adopts an airbag fixation technique combined with a mechanical cooperation longitudinal position fixation measure to achieve the stable transmission of the drainage tube during the operation and the postoperative stability. The airbag at the front end of the guiding tube is connected to the air source interface at the end of the connecting handle, and can be inflated as needed to adhere to the inner wall of the drainage tube, and then tightly connect the drainage tube and the guiding tube through friction. The flexible material design of the airbag avoids applying excessive local pressure and enhances the stable load capacity of the guiding tube. After the drainage tube is successfully delivered to the target position, the connection plug and the connection buckle at the guiding tube and the connecting handle are matched, and a multiple fixation mechanism of mechanical or magnetic type further locks the longitudinal position of the drainage tube. A fastening knob is provided on the connection buckle, and appropriate friction can be applied by adjustment to ensure that the drainage tube remains in the predetermined anatomical position during the postoperative changes in the patient's body position (such as lying in bed, turning over, getting up, etc.).

[0018] The inflation fixation function of the airbag and the fixation measure of the mechanical cooperation of the guiding tube provide double stability during and after the operation. The dynamic inflation adaptation of the airbag during the operation reduces the difficulty of the surgical operation and avoids damage to the surrounding tissues. The mechanical fixation and the auxiliary design of the adhesive dressing after the operation achieve long-term reliability and eliminate common problems such as slippage, displacement, and drainage failure in the traditional intubation technique. This design significantly improves the drainage effect and the safety of the treatment.

[0019] The bendable structure of the guiding tube realizes the dynamic adjustment function through multiple rigid links and embedded control wires in the design, and can flexibly bend and adjust the angle according to the surgical needs. In the connecting handle at the end of the guiding tube, through the precise setting of the control handle, the fixed handle and the supporting spring parts, the surgeon only needs to rotate the control handle to pull the wire in real time to adjust the arc and direction of the bendable structure. When the control force is released, the spring part automatically drives the wire to return to its original position through the spring-back action, so that the bendable structure returns to the initial state. In addition, to further improve the operation convenience and accuracy, the airbag is fixed on the outer wall of the bendable structure and can adjust the direction synchronously with the bendable structure to ensure that it is always stably connected to the drainage tube during the dynamic operation.

[0020] The dynamic control system of the wire control combined with the spring part return enables the surgeon to quickly complete the angle adjustment and position control of the drainage tube with one-handed operation. In the case where the patient's anatomical area is relatively complex or the lesion position is relatively deep, the bendable structure and the automatic return design significantly reduce the time for multiple attempts at positioning and optimize the intraoperative operation efficiency. In addition, it avoids accidental deformation or failure of the guiding tube due to adjustment operations, improving the reliability of the device. The overall design not only improves the operation experience of the operator, but also indirectly reduces the risk of intraoperative tissue damage.

[0021] The dislocation or displacement of the postoperative drainage tube is the main cause of unsmooth drainage, infection, or secondary surgery. In response to this problem, the present invention proposes an anti-displacement design from multiple aspects. First, the connection buckle on the connection handle is designed as a disk-shaped structure at the near-incision end, and a paste dressing is covered on its surface. After the drainage tube reaches the target position, the connection buckle can be adjusted to align with the incision position, and the paste dressing fits tightly with the patient's skin, providing additional external fixation support. Second, the fastening knob of the connection buckle further increases the axial fixation stability of the drainage tube and can adapt to the dynamic traction force during the postoperative body position change of the patient. In addition, to prevent excessive mechanical stress on the local tissue after surgery, the airbag is designed with a flexible material, and its expansion thickness is controlled within a moderate range, which can not only provide stable support inside but also avoid compressing the surrounding tissues.

[0022] Multiple anti-displacement measures effectively reduce the possibility of the postoperative drainage tube falling off or changing position, ensure the patency and continuity of drainage, and thus reduce the risk of infection or inflammation caused by fluid accumulation. The design of the paste dressing and the flexible airbag minimizes the stress concentration at the fixation points and reduces the postoperative discomfort of the patient. In addition, the structure of the disk-shaped connection buckle can provide uniform supporting force on the body surface and prevent the incision from tearing due to excessive local pressure. This all-round anti-displacement design significantly improves the postoperative curative effect and creates favorable conditions for the rapid recovery of the patient.

[0023] By adapting to the existing drainage tube, the present invention minimizes the possible waste of resources caused by customized consumables and also reduces the potential harm of waste consumables to the environment. Especially in the medical scenarios where minimally invasive surgeries need to be carried out on a large scale, this design will significantly reduce the usage of disposable medical products, which is in line with the important trend of the development of green medicine. At the same time, the procurement and use of medical equipment are restricted by the supply chain, storage conditions, and clinical operation habits. Since the present invention does not require a dedicated customized drainage tube, it can directly adapt to the existing consumable library of current medical institutions, avoiding the additional budget pressure caused by the introduction of new equipment or consumables. Medical institutions do not need to adjust the existing procurement and supply processes, nor do they need to provide additional training to the surgical team to smoothly use this device, thus realizing the convenient and efficient clinical application of the device.

[0024] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall working structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the guiding tube and the connecting handle of the present invention;

[0029] Figure 4 This is a schematic diagram of the working structure of the wire of the present invention;

[0030] Figure 5 This is a schematic diagram of the head end structure of the guiding tube of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the connecting buckle of the present invention;

[0032] In the figure: 1. Drainage tube, 2. Guiding tube, 3. Connecting handle, 201. Bendable structure, 202. Airbag, 203. Wire, 204. Spring member, 301. Fixed handle, 302. Control handle, 303. Connecting frame, 304. Air source interface, 305. Fastening knob, 306. Connecting plug, 307. Connecting buckle, 308. Connecting shaft, 309. Adhesive dressing, 310. Threaded sleeve, 2011. Rigid link, 2012. Connecting joint, 2021. Tapered piece, 3021. Convex column, 3031. Arc groove. Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0034] Embodiment 1

[0035] An auxiliary device for fixing a hole mirror surgery drainage tube described in this embodiment includes:

[0036] The guiding tube 2 is in the shape of a slender tube and is provided with a connecting handle 3 at the rear end; it is used to guide the drainage tube 1 to reach the target position in the body through a small incision;

[0037] The front end of the guiding tube 2 is provided with an inflatable airbag 202, and the airbag 202 is connected to the air source interface 304 provided on the connecting handle 3 through an air filling tube; after the head end of the guiding tube 2 penetrates into the head end of the drainage tube 1, the airbag 202 can be inflated to fix the connection between the guiding tube 2 and the drainage tube 1;

[0038] The front end of the guiding tube 2 is a bendable structure 201, which drives the head end of the drainage tube 1 to bend through the bendable structure 201;

[0039] At the connection between the guiding tube 2 and the connection handle 3, there are a connection plug 306 and a connection buckle 307 for connecting the drainage tube 1; the longitudinal position of the drainage tube 1 is fixed by mechanical cooperation or magnetic cooperation. After the airbag 202 is inflated and fixed, the connection plug 306 and the connection buckle 307 cooperate to prevent the drainage tube 1 from sliding longitudinally, ensuring that it maintains a predetermined position during various body position changes after surgery.

[0040] In this embodiment, the bendable structure 201 at the front end of the guiding tube 2 is composed of multiple rigid links 2011 connected in series. Between each section of the rigid link 2011, there is a rotating connection through a connection joint 2012 provided to form an integral bendable structure; on both sides of each section of the rigid link 2011, there is a through wall tube, and a control wire 203 is embedded therein. The wire 203 runs through the entire bendable structure 201 and extends to the end of the connection handle 3.

[0041] In this embodiment, the connection handle 3 includes a connection frame 303, a fixed handle 301, and a control handle 302. The head end of the fixed handle 301 is fixedly connected inside the connection frame 303. The control handle 302 is rotatably connected to the fixed handle 301 through a connection shaft 308 provided. At the same time, the head end of the control handle 302 is slidably connected inside the connection frame 303. Inside the connection frame 303, there is an arc-shaped groove 3031 adapted to the rotation stroke of the control handle 302. The head end of the control handle 302 is provided with a convex column 3021 adapted to the arc-shaped groove 3031; a group of wires 203 are connected to the fixed handle 301 through a spring member 204 provided, and the other group of wires 203 are fixedly connected to the convex column 3021; by holding the fixed handle 301 and controlling the rotation of the control handle 302, the convex column 3021 provided at the head end of the control handle 302 drives a group of wires 203, causing the corresponding side of the bendable structure 201 to bend, and the other group of wires 203 drives the spring member 204 to stretch. When the doctor releases the force, based on the action of the spring member 204, the two groups of wires 203 and the bendable structure 201 automatically return to their original positions.

[0042] In this embodiment, the airbag 202 is fixedly connected to the outer wall of the bendable structure 201. The inner side of the airbag 202 is made of a flexible material. The thickness of the inner cavity of the airbag 202 is much smaller than the diameter of the rigid link 2011. When the bendable structure 201 bends, it drives the airbag 202 to bend, and the airbag 202 drives the drainage tube 1 to bend; at the head end of the airbag 202, there is a hard conical piece 2021 to guide the guiding tube 2 to penetrate into the drainage tube 1.

[0043] In this embodiment, the connecting plug 306 is adaptively connected to the inner wall of the drainage tube 1, the connecting buckle 307 is adaptively connected to the outer wall of the drainage tube 1, the connecting buckle 307 is detachably connected to the drainage tube 1, the connecting buckle 307 is provided with a fastening knob 305 for increasing the connection friction with the drainage tube 1, one end near the drainage tube 1 is disc-shaped and the surface is provided with an adhesive dressing 309. After the drainage tube 1 reaches the designated position, the connecting buckle 307 can be adjusted to the incision position of the drainage tube 1, the adhesive dressing 309 is pasted on the patient's incision position, and the connecting buckle 307 axially fixes the drainage tube 1 by adjusting the fastening knob 305.

[0044] Embodiment 2

[0045] In modern minimally invasive surgery, especially in laparoscopic and thoracoscopic surgeries, postoperative drainage is an important step to ensure postoperative recovery and prevent complications. Due to the small incisions in minimally invasive surgeries, the placement of traditional drainage tubes 1 faces many challenges. The fixation assistance device for the drainage tube 1 in endoscopic surgery of the present invention is designed specifically to solve these problems and is applicable to surgical scenarios that require precise drainage, such as abdominal effusion, pleural effusion, postoperative bleeding, or fluid accumulation caused by infection.

[0046] Usage steps

[0047] 1. Preoperative assessment and preparation:

[0048] Determine the target drainage position and conduct a detailed assessment using imaging tools such as ultrasound, CT, or MRI.

[0049] Select a suitable drainage tube 1 and guiding tube 2 to ensure that their lengths and diameters are suitable for the surgical environment and the target area.

[0050] 2. Assembly of the drainage tube 1 and the guiding tube 2:

[0051] Insert the guiding tube 2 into the drainage tube 1, ensuring that the airbag 202 at the front end of the guiding tube 2 is in an unexpanded state for smooth passage through the drainage tube 1.

[0052] The connecting plug 306 and the connecting buckle 307 cooperate to axially fix the guiding tube 2 to the drainage tube 1;

[0053] Ensure that all connecting components are in the correct position for subsequent insertion operations.

[0054] 3. Inflation and fixation of the airbag 202:

[0055] Inflate the airbag 202 at the front end of the guiding tube 2 through the inflation interface on the control handle.

[0056] During the inflation process of the airbag 202, its diameter increases and tightly fits the inner wall of the drainage tube 1, ensuring a firm connection between the guiding tube 2 and the drainage tube 1.

[0057] This stable connection enables the guiding tube 2 to stably traction the drainage tube 1, allowing it to move as an integral structure during subsequent bending operations.

[0058] 4. Guiding tube 2 guiding and preliminary positioning:

[0059] In the minimally invasive surgical incision, under the visual guidance of the arthroscope, the combined guiding tube 2 and drainage tube 1 are inserted into the patient's body.

[0060] Adjust the guiding tube 2 through the surgical control handle to ensure that it can smoothly reach the target area.

[0061] 5. Bending of the bendable structure 201 and positioning of the drainage tube 1:

[0062] With the aid of the bendable structure 201 of the guiding tube 2, adjust the angle and bending direction of the guiding tube 2 through the control handle.

[0063] Due to the inflation and fixation of the airbag 202, under the traction of the bending structure, the drainage tube 1 can bend together with the guiding tube 2 and accurately reach the predetermined drainage position.

[0064] Ensure that the opening of the drainage tube 1 is aligned with the effusion or the specific area to be drained for subsequent drainage operations.

[0065] 6. Postoperative fixation and management:

[0066] Use the external connection buckle 307 and its adhesive dressing to ensure that the drainage tube 1 does not shift due to patient movement after surgery.

[0067] During postoperative care, regularly check the fixation of the drainage tube 1 and the nature of the drainage fluid, and promptly handle any possible blockage or complication.

[0068] The arthroscopic surgery drainage tube fixation assist device of the present invention solves many problems in the placement of drainage tubes in minimally invasive surgery through innovative designs and multiple technical means. Its significant advantages in accuracy, stability, and safety make it an ideal choice for the positioning and fixation of drainage tubes in minimally invasive surgery, significantly improving the success rate of surgery and the postoperative recovery effect of patients.

[0069] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An auxiliary device for fixing drainage tubes during endoscopic surgery, characterized in that: include: The guide tube (2) is in the shape of a slender tube, and is provided with a connecting handle (3) at the rear end; it is used to guide the drainage tube (1) through a small incision to reach a target position in the body; An inflatable airbag (202) is provided at the front end of the guide tube (2), and the airbag (202) is connected to an air source interface (304) provided on the connection handle (3) through an inflatable tube; after the head end of the guide tube (2) is inserted into the head end of the drainage tube (1), the airbag (202) can be inflated to connect and fix the guide tube (2) and the drainage tube (1); The front end of the guide tube (2) is a bendable structure (201), and the bendable structure (201) drives the head end of the drainage tube (1) to bend; A connecting plug (306) and a connecting buckle (307) for connecting the drainage tube (1) are provided at the connection between the guide tube (2) and the connecting handle (3); the longitudinal position of the drainage tube (1) is fixed by mechanical or magnetic matching.

2. The auxiliary device for fixing the drainage tube in endoscopic surgery according to claim 1, characterized in that: The bendable structure (201) at the front end of the guide tube (2) is composed of a plurality of rigid links (2011) connected in series, and each rigid link (2011) is rotatably connected via a connecting joint (2012) to form an integral bendable structure; through tube walls are provided on both sides of each rigid link (2011), and a control pull wire (203) is embedded in the wall, and the pull wire (203) runs through the entire bendable structure (201) and extends to the end of the connecting handle (3).

3. The auxiliary device for fixing the drainage tube in endoscopic surgery according to claim 2, characterized in that: The connecting handle (3) comprises a connecting frame (303), a fixed handle (301) and a control handle (302); the head end of the fixed handle (301) is fixedly connected to the connecting frame (303); the control handle (302) is rotationally connected to the fixed handle (301) via a connecting shaft (308); and the head end of the control handle (302) is slidably connected to the connecting frame (303); an arc groove (3031) adapted to the rotation stroke of the control handle (302) is provided in the connecting frame (303); and a convex column (3021) adapted to the arc groove (3031) is provided at the head end of the control handle (302); one group of pull wires (203) is connected to the fixed handle (301) via a spring member (204); and another group of pull wires (203) is fixedly connected to the convex column (3021).

4. The auxiliary device for fixing the drainage tube in endoscopic surgery according to claim 1, characterized in that: The airbag (202) is fixedly connected to the outer wall of the bendable structure (201); the inner side surface of the airbag (202) is made of a flexible material; the inner cavity thickness of the airbag (202) is smaller than the diameter of the rigid link (2011); when the bendable structure (201) bends, the airbag (202) is driven to bend; and the airbag (202) drives the drainage tube (1) to bend; a hard conical piece (2021) is provided at the head end of the airbag (202) to guide the guide tube (2) to penetrate into the drainage tube (1).

5. The auxiliary device for fixing the drainage tube in endoscopic surgery according to claim 1, characterized in that: The connecting plug (306) is adapted to be connected to the inner wall of the drainage tube (1), and the connecting buckle (307) is adapted to be connected to the outer wall of the drainage tube (1). The connecting buckle (307) is detachably connected to the drainage tube (1), and the connecting buckle (307) is provided with a fastening screw button (305) for increasing the friction force of the connection with the drainage tube (1). One end near the drainage tube (1) is disc-shaped and has an adhesive dressing (309) on its surface.

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