Fixing device for nasobiliary drainage tube after ERCP

Abstract

The utility model relates to the technical field of catheter fixing tools, in particular to an ERCP postoperative nasobiliary drainage tube fixing device which comprises a main support made of silica gel materials, a plurality of adjusting assemblies are installed on the main support in a sliding mode, each adjusting assembly comprises a sliding sleeve, a clamp assembly is installed on the outer wall of each sliding sleeve, and the sliding sleeves are arranged on the main support in a sleeved mode and matched with the main support in a sliding mode. The clamp assembly comprises a base, two limiting plates are symmetrically installed on the base, and clamping plates are installed on the inner sides of the two limiting plates. According to the fixing device for the nasobiliary drainage tube after the ERCP operation, the nasobiliary drainage tube can be firmly fixed through the designed adjusting assembly and the designed clamp assembly, and the situation that the drainage tube moves or falls off due to movement of a patient is effectively avoided. The stability of the drainage tube is jointly ensured through sliding fit of the sliding sleeve and the main support and tight clamping of a limiting plate and a clamping plate in the clamp assembly, so that normal discharge of bile is guaranteed, and the risk of biliary obstruction and infection is reduced.

Description

Technical Field

[0001] This utility model relates to the field of catheter fixation tools, specifically to a fixation device for a nasobiliary drainage tube after ERCP. Background Technology

[0002] After ERCP (endoscopic retrograde cholangiopancreatography), securing the nasobiliary drainage tube is crucial. Traditional methods, such as wrapping with simple tape or bandages, while providing some stability, have several shortcomings. These methods often result in poor fixation, with the tube easily shifting or dislodging due to patient movement. This not only affects normal bile drainage but can also lead to serious complications such as biliary obstruction and infection.

[0003] Furthermore, traditional fixation devices are often poorly designed. They are usually made of rigid materials, which can cause significant pressure on the patient's nasal cavity, leading to extreme discomfort during postoperative recovery. Prolonged use may even cause skin damage or allergic reactions, further exacerbating the patient's suffering.

[0004] More importantly, traditional fixation devices lack flexibility. They cannot be personalized to the physiological characteristics of different patients, resulting in significantly reduced effectiveness. Whether it's the shape of the patient's nasal cavity, the thickness of the drainage tube, or the patient's postoperative activity level, traditional fixation devices struggle to provide a perfect fit. Utility Model Content

[0005] The purpose of this invention is to provide a fixation device for the nasobiliary drainage tube after ERCP, in order to solve the problem that the traditional methods mentioned in the background art often have poor fixation effect, and the drainage tube is prone to displacement or dislodgement due to the patient's activities. This not only affects the normal drainage of bile, but may also lead to serious complications such as biliary obstruction and infection.

[0006] To achieve the above objectives, this utility model provides a fixation device for a nasobiliary drainage tube after ERCP, comprising a main support made of silicone material, on which several adjustment components are slidably mounted, each adjustment component including a sliding sleeve, the outer wall of which is fitted with a clamping assembly, the sliding sleeve being fitted onto the main support and slidably engaged, the clamping assembly including a base, on which two limiting plates are symmetrically mounted, and clamping plates are installed on the inner sides of both limiting plates.

[0007] Preferably, the inner walls on both sides of the sliding sleeve are provided with grooves, and anti-slip plates are slidably disposed in both grooves. A positioning spring is installed on the back of the anti-slip plate, and the other end of the spring is fixedly connected to the inner wall of the groove.

[0008] Preferably, the base has an inner groove, and a lead screw is rotatably mounted inside the inner groove. The lead screw consists of two sections with opposite thread directions. Each section is equipped with a lead screw slider. The tops of the two lead screw sliders slide through and extend to the outer top of the base and are respectively connected to two limiting plates.

[0009] Preferably, the bottom inner wall of the inner groove is provided with a guide groove, and a guide block is installed at the bottom of the lead screw slider, with the guide groove slidingly engaged within the guide block.

[0010] Preferably, both ends of the lead screw are rotatably connected to the inner walls of the inner groove via bearings, and the outer end of the lead screw extends rotatably to the outer side of the base and is fixedly mounted with a handle.

[0011] Preferably, the limiting plate and the clamping plate are arc-shaped.

[0012] Preferably, a pressure rod is installed on the back of the clamping plate, and a pressure groove is provided in the middle of the inner side of the limiting plate, with the pressure rod inserted into the pressure groove for sliding engagement.

[0013] Preferably, a compression spring is fixedly installed inside the compression groove, and the other end of the compression spring is fixedly connected to the end of the compression rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this ERCP postoperative nasobiliary drainage tube fixation device, the designed adjustment component and clamping component enable the nasobiliary drainage tube to be firmly fixed, effectively preventing displacement or dislodgement due to patient movement. The sliding engagement between the sliding sleeve and the main support, as well as the tight clamping of the limiting plate and clamping plate in the clamping component, jointly ensure the stability of the drainage tube, thereby guaranteeing normal bile drainage and reducing the risk of biliary obstruction and infection.

[0016] This invention uses silicone material to make the main support, which is soft and breathable, greatly reducing pressure on the patient's nasal cavity. At the same time, the design of the clamp components also fully considers the patient's comfort. The arc-shaped limiting plate and clamp can better fit the drainage tube, reduce compression on surrounding tissues, and improve the patient's comfort during postoperative recovery.

[0017] The fixation device in this invention features excellent adjustability. The sliding sleeve can slide freely on the main support, allowing the clamp assembly to be individually adjusted according to the shape of the nasal cavity and the thickness of the drainage tube for different patients. Furthermore, the design of the lead screw and lead screw slider allows for precise adjustment of the distance between the two limiting plates and the two clamps, further enhancing the adaptability of the device and meeting the diverse needs of clinical use.

[0018] The fixing device in this invention is easy to install and remove. Medical staff can easily adjust the clamping force of the clamp components by simply rotating the handle, without complicated operating procedures, which greatly reduces the workload and improves treatment efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the adjustment component in this utility model;

[0021] Figure 3 This is a schematic diagram of the clamp assembly in this utility model;

[0022] The meanings of the labels in the diagram are as follows:

[0023] 1. Main support; 2. Adjustment assembly; 21. Sliding sleeve; 211. Groove; 212. Anti-slip plate; 213. Positioning spring; 22. Clamp assembly; 221. Base; 222. Inner groove; 223. Lead screw; 2231. Handle; 224. Guide groove; 225. Lead screw slider; 2251. Guide block; 226. Limiting plate; 227. Clamping plate; 228. Compression spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a fixation device for the nasobiliary drainage tube after ERCP, such as... Figures 1-3 As shown, the device includes a main support 1 made of silicone material. Several adjustment components 2 are slidably mounted on the main support 1. Each adjustment component 2 includes a sliding sleeve 21, and a clamping assembly 22 is mounted on the outer wall of the sliding sleeve 21. The sliding sleeve 21 is fitted onto the main support 1 and slidably engaged. The clamping assembly 22 includes a base 221, on which two limiting plates 226 are symmetrically mounted. Clamping plates 227 are mounted on the inner sides of both limiting plates 226. This fixation device uses a main support 1 made of silicone material, ensuring the device's softness and breathability, thereby reducing pressure and irritation on the patient's nasal cavity and surrounding tissues, and improving patient comfort.

[0026] In use, the several adjustment components 2 installed on the main support 1 make the entire fixation device highly adjustable. The sliding sleeve 21 in the adjustment component 2 can be fitted onto the main support 1 and slide with it. This means that medical staff can easily adjust the position of the sliding sleeve 21 according to the shape of the patient's nasal cavity, the thickness of the drainage tube, and the actual situation after surgery, so as to ensure that the clamp component 22 can accurately clamp the drainage tube.

[0027] The design of the clamp assembly 22 further demonstrates the ingenuity of this invention. The symmetrically mounted limiting plate 226 and clamping plate 227 on the base 221 together form a stable clamping structure. When the drainage tube is placed between the two clamping plates 227, the relative position of the limiting plate 226 can be adjusted to achieve a tight clamping of the drainage tube, effectively preventing its displacement or dislodgement. This design not only improves the fixation effect but also ensures the normal drainage of bile, reducing the risk of complications.

[0028] In this embodiment, grooves 211 are provided on both inner walls of the sliding sleeve 21, and anti-slip plates 212 are slidably disposed in both grooves 211. A positioning spring 213 is installed on the back of the anti-slip plate 212, and the other end of the spring 213 is fixedly connected to the inner wall of the groove 211. The anti-slip plate 212 is kept in close contact with the main support 1 by the positioning spring 213 on its back. The elastic force of the positioning spring 213 makes the two anti-slip plates 212 tightly clamped on the outer wall of the main support 1, thereby positioning the sliding sleeve 21 at the desired position on the main support 1.

[0029] Specifically, the base 221 has an inner groove 222 inside, and a lead screw 223 is rotatably mounted inside the inner groove 222. The lead screw 223 consists of two sections with opposite thread directions. Each section is equipped with a lead screw slider 225. The tops of the two lead screw sliders 225 slide through and extend to the outer top of the base 221, where they connect to two limiting plates 226 respectively. By rotating the lead screw 223, the two lead screw sliders 225 can be driven to move synchronously and in opposite directions. This design not only simplifies the adjustment process but also enables precise control of the distance between the two limiting plates 226, allowing for quick and accurate adjustments according to different diameter drainage tubes, thus improving the adaptability and practicality of the fixing device.

[0030] Furthermore, a guide groove 224 is provided on the bottom inner wall of the inner groove 222, and a guide block 2251 is installed on the bottom of the lead screw slider 225. The guide groove 224 is slidably fitted within the guide block 2251. This design ensures that the lead screw slider 225 will not deviate from the predetermined trajectory during movement, further improving the accuracy and stability of adjustment, while also reducing wear caused by friction and extending the service life of the fixing device.

[0031] Furthermore, both ends of the lead screw 223 are rotatably connected to the inner walls of the inner groove 222 via bearings, reducing resistance during rotation and making adjustment smoother. The outer end of the lead screw 223 extends to the outer side of the base 221 and is fixedly mounted with a handle 2231. The handle 2231 provides medical personnel with an easy-to-operate control point, allowing them to easily adjust the position of the limit plate 226 and the clamping plate 227 by simple manual rotation, improving the convenience and efficiency of operation.

[0032] Furthermore, both the limiting plate 226 and the clamping plate 227 have an arc-shaped structure. This design allows them to better conform to the surface of the drainage tube, reducing stress concentration during clamping and thus lowering the risk of damage to the drainage tube. At the same time, the arc-shaped structure also increases clamping stability, preventing accidental slippage of the drainage tube.

[0033] Furthermore, a pressure rod is installed on the back of the clamping plate 227, and a pressure groove is provided in the middle of the inner side of the limiting plate 226, with the pressure rod inserted into the pressure groove for sliding engagement.

[0034] Furthermore, a clamping spring 228 is fixedly installed inside the clamping groove, with the other end of the clamping spring 228 fixedly connected to the end of the clamping rod. The clamping rod and the clamping groove slide together to form an adaptive clamping force adjustment mechanism. When the drainage tube is clamped, the clamping spring 228 automatically adjusts the clamping force according to the thickness of the drainage tube, ensuring sufficient clamping force while avoiding damage caused by excessive compression, thus improving the comfort and safety of the fixation device.

[0035] In use, the nasobiliary drainage tube fixation device after ERCP of this utility model first fixes the main support 1 to the outside of the patient's nose with tape. The sliding sleeve 21 is fitted onto the main support 1 and can slide along the main support 1 to adapt to different patients' nasal cavity shapes and drainage tube placement positions. The clamp assembly 22 consists of a base 221, a limiting plate 226, and a clamping plate 227, forming a stable clamping structure for fixing the drainage tube.

[0036] The two anti-slip plates 212 on the inner side of the sliding sleeve 21 prevent accidental slippage of the sliding sleeve 21, ensuring the stability of the device. Medical staff can slide the sliding sleeve 21 along the main support 1 as needed to adjust the position of the clamp assembly 22, aligning it with and clamping the drainage tube. Moreover, the distance between the two limiting plates 226 and the waste clamping plate 227 can be precisely adjusted by rotating the lead screw 223 to accommodate drainage tubes of different diameters. The guide groove 224 at the bottom of the inner groove 222 slides in conjunction with the guide block 2251 at the bottom of the lead screw slider 225, ensuring the accuracy and stability of the adjustment process.

[0037] In addition, both the limiting plate 226 and the clamping plate 227 are arc-shaped structures, which can better fit the surface of the drainage tube, reduce stress concentration, and lower the risk of damage. The pressure rod on the back of the clamping plate 227 slides in conjunction with the pressure groove on the inner side of the limiting plate 226, and a compression spring 228 is installed in the pressure groove. When the drainage tube is clamped, the compression spring 228 automatically adjusts the clamping force according to the thickness of the drainage tube, ensuring sufficient clamping force while avoiding excessive compression.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fixing device for post-ERCP naso-biliary drainage tube, comprising a main support (1) made of silicone material, characterized in that: The main support (1) is provided with a plurality of adjusting assemblies (2) which are slidably installed on the main support (1), the adjusting assembly (2) comprises a sliding sleeve (21), the outer wall of the sliding sleeve (21) is provided with a clamp assembly (22), the sliding sleeve (21) is sleeved on the main support (1) and is in sliding fit, the clamp assembly (22) comprises a base (221), two limiting plates (226) are symmetrically installed on the base (221), and a clamping plate (227) is installed on the inner side of each limiting plate (226).

2. The device for fixation of post-ERCP naso-biliary drain tube as claimed in claim 1 wherein: The inner wall of the sliding sleeve (21) is provided with a groove (211), the groove (211) is slidably provided with an anti-skid plate (212), the back of the anti-skid plate (212) is provided with a positioning spring (213), and the other end of the spring (213) is fixedly connected to the inner wall of the groove (211).

3. The device for fixation of post-ERCP naso-biliary drain tube as claimed in claim 1 wherein: The base (221) is provided with an inner groove (222), the inner groove (222) is rotatably provided with a lead screw (223), the lead screw (223) comprises two sections, the thread directions of the two sections are opposite, a lead screw sliding block (225) is installed on each section, and the top of each lead screw sliding block (225) extends to the top outside of the base (221) in sliding mode and is connected with the two limiting plates (226) respectively.

4. The device for fixation of post-ERCP naso-biliary drain tube as claimed in claim 3 wherein: The bottom inner wall of the inner groove (222) is provided with a guide groove (224), the bottom of the lead screw sliding block (225) is provided with a guide block (2251), and the guide groove (224) is slidably arranged in the guide block (2251).

5. The device for fixation of post-ERCP naso-biliary drain tube as claimed in claim 3 wherein: Both ends of the lead screw (223) are rotatably connected with the inner walls of the two sides of the inner groove (222) through bearings, and the outer end of the lead screw (223) extends to the outside of the base (221) in rotation and is fixedly provided with a handle (2231).

6. The device for fixation of post-ERCP naso-biliary drain tube as claimed in claim 2 wherein: The limiting plate (226) is in arc-shaped structure, and the clamping plate (227) is in arc-shaped structure.

7. The device for fixation of post-ERCP naso-biliary drain tube according to claim 6, characterized in that: The back of the clamping plate (227) is provided with a pressing rod, the inner side of the limiting plate (226) is provided with a pressing groove, and the pressing rod is slidably arranged in the pressing groove.

8. The device for fixation of post-ERCP naso-biliary drain tube according to claim 7, characterized in that: The pressing groove is fixedly provided with a pressing spring (228) in the inside, and the other end of the pressing spring (228) is fixedly connected to the end of the pressing rod.

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