Multifunctional surgical drainage tube with traction guiding function

Abstract

The present application relates to the technical field of medical devices, in particular to a multifunctional surgical drainage tube with traction guiding function, comprising a tube body, the surface of the tube body is provided with a drainage hole; the two ends of the tube body are respectively a connecting end and a blind end, and a clamping structure is arranged at the blind end; the connecting end is used for inserting a guide wire or connecting an external suction device; after the tube body is bent, the blind end is inserted into the drainage hole and is clamped and fixed through the clamping structure. The present application adopts the structure of a flexible guide wire cooperating with a hose, has strong plasticity, can adapt to various laparoscopic surgery scenes, and is particularly suitable for the traction of organs such as liver and stomach. The present application can effectively reduce the compression and damage risk of abdominal organs during traction. The material of the present application is low in price and can be used once, so that the risk of disinfection and cross infection can be reduced. In addition, the product combines the dual functions of traction and drainage, so that the operation efficiency is improved, the operation operation process is simplified, and the operation time is shortened.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically a multifunctional surgical drainage tube with traction and guidance functions. Background Technology

[0002] In surgical procedures, adequate exposure of the surgical field is crucial for successful operation, especially in laparoscopic surgeries involving the liver, bile ducts, pancreas, and gastrointestinal tract. Obstruction by adjacent organs often hinders the visualization of the target organ, affecting the surgical progress and increasing its complexity. Therefore, various pushing or traction instruments are needed to move obstructing organs within a small area to expose the abdominal surgical field, increase the surgical operating space, and ensure the smooth progress of the surgery.

[0003] The existing techniques for surgical traction and manipulation include the following:

[0004] 1. Using sutures to temporarily pull tissues and organs is a difficult and time-consuming process in laparoscopic surgery, and there is a risk of tissues and organs being cut and damaged by the sutures.

[0005] 2. Specialized instrument traction, such as the Nathanson liver retractor, the snake-shaped liver pusher, and the lobulated retractor, are typically made of blunt metal, making them difficult to deform and offering limited adjustability. Furthermore, because their structures are fixed, the methods of organ traction are limited, and each instrument can only traction a single organ, resulting in poor versatility. Some traction instruments are quite large, requiring additional openings in the abdominal wall to enter the abdominal cavity. Additionally, these instruments are not disposable, leading to potential damage to parts and difficulties in sterilization during transport and disinfection. During surgery, these traction instruments require manual traction and fixation; improper control of traction force or prolonged traction can easily damage the organ.

[0006] 3. Adhesion technique, which uses medical adhesive (2-cyanoacrylate n-butyl ester, NBCA) to fix adjacent tissues or organs to achieve traction, has limitations in its traction and fixation position. It is not ideal for bonding on rough surfaces. More importantly, NBCA glue takes about 9 months to completely degrade in the body. For abdominal surgery that requires organ traction, abdominal adhesions are the most common postoperative complication. Before NBCA glue is completely degraded, it may greatly increase the degree of abdominal adhesions, which may lead to the risk of a second surgery.

[0007] To address the aforementioned issues, researchers have developed traction devices with freely adjustable shapes, such as CN202123032118. These devices are shaped into specific forms or loop-like structures to traction the liver. However, they still suffer from the following problems: 1. Complex structure, making them difficult to clean and sterilize. Furthermore, the delicate structure of each bend makes them prone to deformation and damage during use, storage, or transportation; 2. Made of blunt metal, which is relatively hard and can easily cause tissue compression damage when in contact with abdominal organs; 3. Limited function, primarily limited to traction of a single organ (liver), with poor operability for traction of other organs; and they cannot simultaneously function as a drainage tool. Summary of the Invention

[0008] The purpose of this invention is to address the problems of existing technologies, such as the lack of disposable low-cost consumables, insufficient surgical field of view, limited applicability to specific surgical scenarios, difficulty in inserting instruments into the abdominal cavity, organ damage caused by traction instruments, and limited functionality of traction instruments. The invention provides a low-cost, highly adaptable traction device with multiple applications, simultaneously providing traction, drainage, and blocking functions.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0010] A multifunctional surgical drainage tube with traction and guiding function includes a tube body, and the surface of the tube body is provided with drainage holes. The drainage holes are arranged in a double row and are respectively located on both sides of the surface of the tube body.

[0011] The tube body has a connecting end and a blind end at its two ends, and the blind end is provided with a snap-fit ​​structure; the connecting end is used to insert a guide wire or connect to an external suction device.

[0012] After the tube body is bent, the blind end enters from the drainage hole on one side of the tube body and exits from the drainage hole on the opposite side, and is fixed by a snap-fit ​​structure.

[0013] As an improvement, the connecting end is provided with a connector and a cap, and the cap and connector are detachably connected;

[0014] The cap has a through hole for the guide wire to pass through.

[0015] As an improvement, the connector is provided with clips, and the number of clips is two or more. The clips are located inside the connector and their ends are inclined toward the proximal end of the connector.

[0016] The screw cap is equipped with a pressure block inside;

[0017] After the guide wire is inserted into the tube body through the through hole, the screw cap and connector are screwed together. The tilt angle of the clamp is adjusted by the pressure block so that the clamp clamps the guide wire and locks the guide wire.

[0018] As an improvement, the snap-fit ​​structure is a semi-circular bulge protruding from the outside of the blind end;

[0019] The enlarged portion is integrally formed with the tube body or fixedly connected to the tube body.

[0020] As an improvement, the snap-fit ​​structure is an outwardly convex arc-shaped part, and the arc-shaped part is provided with a pull member inside the tube body;

[0021] After the guidewire is inserted into the blind end, the pulling member is pushed; the pulling member pulls the arc-shaped part to keep it flush with the outside of the tube body; after the guidewire is withdrawn, the arc-shaped part returns to its original position and bulges out due to its own elasticity.

[0022] As an improvement, the end of the blind end is provided with a clamping part; the clamping part is provided with a groove for fixing the end of the guide wire;

[0023] The hardness of the compacted part is higher than that of the tube body.

[0024] As an improvement, the number of drainage holes is multiple, and they are evenly distributed on one side of the tube.

[0025] As an improvement, a buffer tube is also provided on the outside of the drainage tube. The inner diameter of the buffer tube is larger than the outer diameter of the tube body, and the buffer tube is sleeved on the outside of the tube body.

[0026] As an improvement, the guidewire is made of flexible metal.

[0027] The advantages of this invention are:

[0028] 1. The materials used in this invention are inexpensive and disposable, avoiding the need for repeated use and sterilization of traditional instruments, thus significantly reducing the risk of cross-infection. Furthermore, this product combines the dual functions of traction and drainage, improving surgical efficiency, simplifying the surgical procedure, and shortening the operation time.

[0029] 2. This invention employs a flexible tube combined with a flexible guidewire, offering high adaptability and versatility to various laparoscopic surgical scenarios, particularly suitable for traction of organs such as the liver and stomach. It effectively reduces the risk of compression and damage to abdominal organs during traction. The buffer tube of this invention not only increases the contact area with the traction organ, preventing pressure injuries, but also provides anti-slip fixation, further improving the stability and safety of the surgery.

[0030] 3. The invention has a small overall size, which effectively avoids the need for additional openings to allow traction instruments into the abdominal cavity, thereby reducing surgical trauma. The invention can improve the exposure of the surgical field through effective traction, making surgical operations more precise. Attached Figure Description

[0031] Figure 1 This is a structural diagram of a multifunctional surgical drainage tube with traction and guidance function in Example 1.

[0032] Figure 2 This is a structural diagram of a multifunctional surgical drainage tube with traction and guidance function after bending, as shown in Example 1.

[0033] Figure 3 This is a structural diagram of the connecting end of a multifunctional surgical drainage tube with traction and guidance function in Example 1.

[0034] Figure 4 This is a diagram showing the internal structure of the connecting end of a multifunctional surgical drainage tube with traction and guidance function in Example 1.

[0035] Figure 5 This is a structural diagram of the blind end of a multifunctional surgical drainage tube with traction and guidance function in Example 1.

[0036] Figure 6 This is a reference diagram of a multifunctional surgical drainage tube with traction and guidance function used in conjunction with a buffer tube in Example 1.

[0037] Figure 7 This is a reference diagram of the use of a multifunctional surgical drainage tube with traction and guidance function in Example 1, which relies on the free shaping of the guide wire.

[0038] Figure 8 This is a reference diagram illustrating the use of a multifunctional surgical drainage tube with traction and guidance function in Example 1, which forms a snare structure for traction.

[0039] Figure 9 This is a reference diagram of a multifunctional surgical drainage tube with traction and guidance function used to pull the stomach in Example 1.

[0040] Figure 10 This is a structural diagram of the blind end of a multifunctional surgical drainage tube with traction and guidance function in Example 2.

[0041] Figure 11 This is a structural diagram of the blind end of a multifunctional surgical drainage tube with traction and guidance function in Example 3.

[0042] The image shows:

[0043] 1-Tube body, 11-Pull member, 2-Drainage hole, 3-Connecting end, 31-Connecting head, 32-Screw cap, 33-Through hole, 34-Clamping piece, 35-Pressure block, 4-Blind end, 41-Firming part, 42-Groove, 43-Opening, 5-Snap-fit ​​structure, 51-Expansion part, 52-Arc-shaped part, 6-Guide wire, 61-Clamping ring, 7-Buffer tube. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Example 1

[0046] This embodiment discloses a multifunctional surgical drainage tube with traction and guidance function, including a tube body 1, which is an elastic flexible tube.

[0047] The tube body 1 has drainage holes 2 on its surface. The drainage holes 2 are arranged in two rows, one on each side of the surface of the tube body 1. There are multiple drainage holes 2 in each row, evenly distributed on the tube body 1. The two ends of the tube body 1 are a connecting end 3 and a blind end 4, respectively. The blind end 4 is provided with a snap-fit ​​structure 5. The connecting end 3 is used to insert a guide wire 6 or connect an external suction device.

[0048] The main function of this embodiment is that after the tube body 1 is bent, the blind end 4 is inserted into the drainage hole 2, and then passes out from the drainage hole 2 on the opposite side, and is fixed by the snap-fit ​​structure 5, so that the tube body 1 forms a snare structure at the distal end for pulling organs.

[0049] The various structures of this embodiment are described in detail below:

[0050] The connecting end 3 is provided with a connector 31 and a cap 32, and the cap 32 and the connector 31 are detachably connected by threads.

[0051] The cap 32 has a through hole 33 for the guide wire 6 to pass through.

[0052] The connector 31 is equipped with a clip 34. For example... Figure 3 As shown, there are four clips 34 arranged in a circular array inside the connector 31, with their ends tilted towards the proximal end of the connector 31.

[0053] The screw cap 32 has an annular pressure block 35 inside. When inserting the guide wire 6, the guide wire 6 can be passed into the tube body 1 through the through hole 33. The screw cap 32 and the through hole 33 can serve as a limit and guide. After the end of the guide wire 6 is inserted into the blind end 4, the screw cap 32 is rotated.Figure 4 As shown, the screw cap 32 moves to the right under the action of the thread, while the pressure block 35 gradually presses against the side of the clamping plate 34, causing the clamping plate 34 to tighten the guide wire 6 and lock it in place. This prevents the guide wire 6 from slipping out during subsequent operations. When it is necessary to remove the guide wire 6, simply rotate the screw cap 32 in the opposite direction to quickly remove the screw cap 32 and pull out the guide wire 6.

[0054] The connector 3 has two functions: one is to cooperate with the cap 32 for the guide wire 6 operation; the other is to perform the drainage operation. For the drainage operation, simply remove the cap 32 and connect the connector 31 to the external suction device.

[0055] In this embodiment, the snap-fit ​​structure 5 is a semi-circular bulge 51 protruding from the outside of the blind end 4. The bulge 51 can be integrally formed with the tube body 1 or it can be made of a material that is slightly harder than the tube body 1 (for example, the tube body 1 is made of elastic silicone material, and the bulge 51 is made of slightly harder medical rubber material), and is bonded and fixed near the blind end 4.

[0056] The blind end 4 has a tightening part 41 at its end; the tightening part 41 has a groove 42 for fixing the end of the guidewire 6; the hardness of the tightening part 41 is higher than that of the tube body 1. The main function of the tightening part 41 is to make the end of the tube body 1 fit more closely with the guidewire 6, improve the control effect of the guidewire 6 on the tube body 1, and avoid misalignment between the guidewire 6 and the tube body 1 when puncturing solid organs such as the liver.

[0057] In this embodiment, a buffer tube 7 can also be used. The buffer tube 7 has a certain thickness, and its inner diameter is larger than the outer diameter of the tube body 1. In use, the buffer tube 7 is fitted over the outside of the tube body 1. The buffer tube 7 can increase the contact area between the tube body 1 and the organ being pulled, thus preventing pressure injuries. In addition, the surface of the buffer tube 7 can be provided with anti-slip textures to prevent slippage and fixation.

[0058] This embodiment has multiple operating modes, which are described one by one below:

[0059] 1. Pushing and pulling are achieved by relying on the free-shaping effect of the guidewire.

[0060] For tissues that are small in size or weight, or when the pulling range is small and the pulling force required is small, the guidewire's free shaping effect can be used for pushing and pulling.

[0061] like Figure 7 As shown, since the guidewire 6 is made of flexible metal, it can be freely shaped, while the tube body 1 is an elastic flexible tube that can be formed into a corresponding shape according to the shape of the guidewire 6. Therefore, after the tube body 1 is inserted into the abdominal cavity, the guidewire 6 and the tube body 1 can be bent into a specified shape using relevant laparoscopic instruments to perform small-range, small-amplitude traction.

[0062] 2. Form a snare structure for traction.

[0063] The specific steps are as follows:

[0064] The tip of guidewire 6 is inserted into tube body 1 through cap 32. The distal end of guidewire 6 passes through tube body 1 and is inserted into groove 42. Then, cap 32 is rotated to lock the guidewire. Percutaneous puncture is performed into the abdominal cavity at the appropriate position.

[0065] When liver traction is required, a puncture is performed above the corresponding area of ​​the liver, depending on the required field of vision. After passing through the appropriate and fixed drainage hole 2, the guide wire 6 is removed. With the assistance of laparoscopic instruments, the buffer tube 7 is placed over the tube body 1, and then the tube body 1 is folded back. The distal end clamping structure 5 of the tube body 1 is then passed through the appropriate drainage hole 2, so that the distal end of the tube body 1 forms an arc shape, constituting a force-bearing ring for liver traction (e.g., ...). Figure 8 As shown, the externally pulled tube 1 is used to fix the liver and achieve a suitable field of view. At this time, the buffer tube serves to prevent slippage and increase the force-bearing area to avoid liver compression injury.

[0066] When hollow organs such as the stomach, small intestine, and large intestine are pulled (taking the stomach as an example, such as...), Figure 9 As shown), after freeing the perigastric ligaments and tissues, according to the needs of the field of vision, the buffer tube 7 is inserted, and the tube body 1 is directly folded back. The resulting arc-shaped ring is placed around the stomach and fixed. Then, external traction is used to achieve the traction effect.

[0067] 3. Drainage function

[0068] When an abdominal drainage tube needs to be placed, insert the tube body 1 into the designated position, then pull out the guide wire 6 and remove the cap 32. Connect the connector 31 directly to the external negative pressure device to allow drainage through the drainage hole 2.

[0069] If necessary (such as when the drainage effect is not good), the blind end can be cut after the guide wire 6 is withdrawn to improve the drainage effect.

[0070] Example 2

[0071] This embodiment discloses a multifunctional surgical drainage tube with traction and guidance function.

[0072] In this embodiment, the snap-fit ​​structure 5 is an outwardly protruding arc-shaped part 52, and the arc-shaped part 52 corresponds to the pull member 11 provided inside the tube body 1.

[0073] After the guidewire 6 is inserted into the blind end 4, the pulling member 11 is pushed; the pulling member 11 pulls the bottom of the arc-shaped part 52 so that the arc-shaped part 52 is flush with the outside of the tube body 1; after the guidewire 6 is withdrawn, the arc-shaped part 52 returns to its original position and bulges out due to its own elasticity.

[0074] This embodiment adds an additional control structure for the locking structure 5 via the guidewire 6, which can keep the outer wall of the tube body 1 smooth before the guidewire 6 is withdrawn. When performing tissue puncture (e.g., liver puncture) traction, it can effectively reduce friction between the tube body 1 and the tissue, and reduce damage to the tissue during puncture.

[0075] The other structures in this embodiment are the same as in Embodiment 1, and will not be described further here.

[0076] Example 3

[0077] This embodiment discloses a multifunctional surgical drainage tube with traction and guidance function.

[0078] In this embodiment, an opening 43 is provided at the tight portion 41. The guide wire 6 can pass through the opening 43. When puncturing tissue, puncture can be performed through the tip of the guide wire 6, and then the guide wire 6 can be used to puncture the tissue or organ, and then the tube body 1 can be guided through the puncture hole.

[0079] The guide wire 6 has a retaining ring 61 at its front end. The retaining ring 61 is engaged in the groove 42 of the tight part 41 to limit and fix the tip of the guide wire 6, so as to prevent the guide wire 6 from sliding relative to the tube body 1 during puncture.

[0080] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multifunctional surgical drainage tube with traction and guiding function, characterized in that, Includes a pipe body, the surface of which is provided with drainage holes, which are arranged in a double row and respectively located on both sides of the surface of the pipe body; The tube body has a connecting end and a blind end at its two ends, and the blind end is provided with a snap-fit ​​structure; the connecting end is used to insert a guide wire or connect to an external suction device. After the tube body is bent, the blind end enters from the drainage hole on one side of the tube body and exits from the drainage hole on the opposite side, and is fixed by a snap-fit ​​structure.

2. The multifunctional surgical drainage tube with traction and guiding function according to claim 1, characterized in that, The connecting end is provided with a connector and a cap, and the cap and connector are detachably connected. The cap has a through hole for the guide wire to pass through.

3. A multifunctional surgical drainage tube with traction and guiding function according to claim 2, characterized in that, The connector is provided with clips, and there are two or more clips. The clips are located inside the connector and their ends are inclined toward the near end of the connector. The screw cap is equipped with a pressure block inside; After the guide wire is inserted into the tube body through the through hole, the screw cap and connector are screwed together. The tilt angle of the clamp is adjusted by the pressure block so that the clamp clamps the guide wire and locks the guide wire.

4. A multifunctional surgical drainage tube with traction and guiding function according to claim 1, characterized in that, The snap-fit ​​structure is a semi-circular bulge protruding from the outside of the blind end; The enlarged portion is integrally formed with the tube body or fixedly connected to the tube body.

5. A multifunctional surgical drainage tube with traction and guiding function according to claim 1, characterized in that, The snap-fit ​​structure is an outwardly convex arc-shaped part, and the arc-shaped part is provided with a pull member inside the tube body; After the guidewire is inserted into the blind end, the pulling member is pushed; the pulling member pulls the arc-shaped part to keep it flush with the outside of the tube body; after the guidewire is withdrawn, the arc-shaped part returns to its original position and bulges out due to its own elasticity.

6. A multifunctional surgical drainage tube with traction and guiding function according to claim 1, characterized in that, The blind end is provided with a tightening part; the tightening part is provided with a groove for fixing the end of the guide wire; The hardness of the compacted part is higher than that of the tube body.

7. A multifunctional surgical drainage tube with traction and guiding function according to claim 1, characterized in that, The number of drainage holes is multiple, and they are evenly distributed on one side of the tube.

8. A multifunctional surgical drainage tube with traction and guiding function according to claim 1, characterized in that, A buffer tube is also provided on the outside of the drainage tube. The inner diameter of the buffer tube is larger than the outer diameter of the tube body, and the buffer tube is sleeved on the outside of the tube body.

9. A multifunctional surgical drainage tube with traction and guiding function according to claim 1, characterized in that, The guidewire is made of flexible metal.

10. A multifunctional surgical drainage tube with traction and guiding function according to claim 1, characterized in that, The compacted section has an opening for the guide wire tip to pass through.

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