A front end B-ultrasonic visualized nasojejunal tube

Abstract

The utility model discloses a front end B ultrasonic can develop nasal tube, including pipe body, put into guide wire and developing structure, the end of putting into guide wire is equipped with handle, the end of pipe body is equipped with the connecting joint, and developing structure sets up at the front end of pipe body, and the pipe cavity is opened in the pipe body, and the front end of putting into guide wire passes through connecting joint and extends into the pipe cavity, and developing structure includes developing ring, and developing ring is made of pure titanium metal material, and the outer periphery of pipe body is equipped with the scale ruler that has been coated, the utility model discloses a nasal tube through setting up the developing structure with the pure titanium metal developing ring at the front end of pipe body, and pure titanium metal is medical grade material, has excellent biological compatibility, and corrosion resistance, and can clearly develop under B ultrasonic, therefore when putting the nasal tube of the utility model into the pipe, the development of the front end developing ring can clearly judge the trend positioning of nasal tube under the guidance of B ultrasonic, realizes the whole process visualization of putting into the pipe, avoids the occurrence of ectopic adverse events to realize accurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of nasoenteric tube technology, and in particular to a nasoenteric tube with a front end that can be visualized by B-ultrasound. Background Technology

[0002] A nasal-intestinal tube is a feeding tube inserted through the nasal cavity, passing through the pharynx, esophagus, and stomach, and finally into the duodenum or jejunum. If the tube's tip is in the duodenum, it is called a nasoduodenal tube; if it's in the jejunum, it's called a nasojejunal tube. It's used for post-pyloric feeding via tube feeding, primarily for enteral nutrition. Currently, after nasal-intestinal tube placement, X-ray imaging is commonly used to verify the tube's position. If the tube tip doesn't reach the target area, repeated adjustments or even re-insertion are necessary, prolonging the procedure and potentially increasing the risk of mucosal damage and discomfort for the patient. In contrast, ultrasound guidance allows for dynamic visualization of the entire placement process, but it requires a fluid-rich gastrointestinal tract to produce visible imaging features. The lack of fluid in the intestines results in blurred imaging, leading to decreased positioning accuracy. Utility Model Content

[0003] The purpose of this invention is to propose a nasoenteric tube that can be visualized by ultrasound at the front end, so as to solve one or more technical problems existing in the background art.

[0004] To achieve this objective, the present invention adopts the following technical solution: A nasoenteric tube capable of being visualized by ultrasound at the front end includes a tube body, an insertion guidewire, and a imaging structure. The insertion guidewire has a handle at its end. The tube body has a connecting joint at its end. The imaging structure is located at the front end of the tube body. A lumen is formed inside the tube body. The front end of the insertion guidewire passes through the connecting joint and extends into the lumen. The imaging structure includes an imaging ring made of pure titanium. The outer periphery of the tube body is coated with a graduated scale.

[0005] Preferably, the axial length of the developing ring is 1 cm.

[0006] Preferably, the developing structure further includes an inner layer and an outer layer, the developing ring is disposed between the inner layer and the outer layer, and the materials of the inner layer and the outer layer are the same as those of the tube body and are integrally formed with the tube body.

[0007] Preferably, the outer surface of the developing ring is provided with a spiral groove.

[0008] Preferably, the developing structure further includes a first transition layer, which is attached and fixed to both sides of the developing ring, and the first transition layer is made of silicone or polyurethane material.

[0009] Preferably, the developing structure further includes a second transition layer, which is disposed at one end of the developing ring, and the two sides of the second transition layer are respectively attached and fixed to the inner layer and the outer layer.

[0010] Preferably, the outer walls of both the tube body and the guidewire are coated with a hydrophilic coating.

[0011] The beneficial effects of this invention are as follows: The nasoenteric tube of this invention features a imaging structure with a pure titanium metal imaging ring at the front end of the tube. Pure titanium metal is a medical-grade material with excellent biocompatibility and corrosion resistance, and it can be clearly visualized under ultrasound. Therefore, when inserting the nasoenteric tube of this invention, the imaging of the front imaging ring allows for clear determination of the tube's direction and location under ultrasound guidance, enabling visualization of the entire insertion process, avoiding adverse events such as displacement, and achieving precise positioning. Furthermore, the pure titanium metal imaging ring has a certain weight, which facilitates the tube's passage through the pylorus under gravity, improving the success rate of insertion. Positioning can be determined by taking an X-ray image after ultrasound guidance, increasing the success rate of insertion on the first attempt, thereby reducing patient discomfort, improving work efficiency, and solving the problems of existing nasoenteric tubes requiring repeated adjustments after X-ray imaging during insertion, leading to wasted time and increased patient discomfort. Attached Figure Description

[0012] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0013] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the internal structure of the developing structure according to one embodiment of the present invention.

[0015] The components include: tube body 1, guide wire insertion 2, developing structure 3, handle 21, connecting connector 11, developing ring 31, scale 12, tube cavity 13, inner layer 32, outer layer 33, spiral groove 311, first transition layer 34, and second transition layer 35. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] This embodiment describes a nasoenteric tube that can be visualized by ultrasound at the front end, as shown in the attached document. Figure 1 and 2The device includes a tube body 1, an insertion guide wire 2, and a developing structure 3. The insertion guide wire has a handle 21 at its end. The tube body 1 has a connecting connector 11 at its end. The developing structure 3 is located at the front end of the tube body 1. A cavity 13 is opened inside the tube body 1. The front end of the insertion guide wire passes through the connecting connector 11 and extends into the cavity 13. The developing structure 3 includes a developing ring 31, which is made of pure titanium metal. The outer periphery of the tube body 1 is coated with a scale 12.

[0018] In this embodiment, the nasoenteric tube has a imaging structure 3 with a pure titanium metal imaging ring 31 at the front end of the tube body 1. Pure titanium metal is a medical-grade material with excellent biocompatibility and corrosion resistance, and it can be clearly visualized under ultrasound. Therefore, when inserting the nasoenteric tube of this embodiment, the imaging of the front imaging ring 31 allows for clear determination of the direction and location of the nasoenteric tube under ultrasound guidance, realizing visualization of the entire insertion process, avoiding the occurrence of ectopic adverse events, and thus achieving precise positioning. In addition, the pure titanium metal imaging ring 31 has a certain weight, which facilitates the passage of the tube body 1 through the pylorus under the action of gravity, improving the success rate of insertion. The positioning can be determined by taking an X-ray after ultrasound guidance, improving the success rate of insertion on the first attempt, thereby reducing patient pain, improving work efficiency, and solving the problems of existing nasoenteric tubes that require repeated adjustments after taking an X-ray during insertion, resulting in wasted time and increased patient pain.

[0019] By providing a graduated scale 12 on the outer periphery of the tube body 1, operators can intuitively obtain the insertion depth, reduce blind operation, shorten the insertion time, and reduce the risk of mucosal damage and patient discomfort.

[0020] Preferably, the axial length of the imaging ring 31 is 1 cm. Setting the length of the imaging ring 31 to 1 cm ensures the formation of clear and stable feature signals in the B-ultrasound image and ensures sufficient imaging area, while minimizing the impact on the flexibility of the front end of the tube body 1, ensuring the flexibility and compliance of the tube body 1 when passing through the curved parts of the digestive tract, and reducing mechanical stimulation to the mucosa.

[0021] Preferably, the imaging structure 3 further includes an inner layer 32 and an outer layer 33, with the imaging ring 31 disposed between the inner layer 32 and the outer layer 33. The materials of the inner layer 32 and the outer layer 33 are the same as those of the tube body 1 and are integrally formed with the tube body 1. The inner layer 32 and the outer layer 33 use the same material as the tube body 1 and are integrally formed to cover the imaging ring 31, eliminating the risk of peeling that may be caused by the exposure of the imaging ring 31, and avoiding local stress concentration caused by material differences. This improves the overall structural stability of the tube body 1, while ensuring the balance of axial flexibility and radial support force of the tube body 1, reducing damage to the mucosa. By completely wrapping the imaging ring 31 with the biocompatible material of the tube body 1, direct contact between the pure titanium imaging ring 31 and the human body is avoided, reducing the risk of potential rejection reactions, while retaining the high imaging properties of pure titanium under ultrasound.

[0022] Preferably, the outer surface of the imaging ring 31 is provided with a spiral groove 311. By providing a spiral groove on the outer surface of the imaging ring 31, the recognizability of the imaging ring 31 under ultrasound imaging is improved, which helps to quickly locate the front end of the tube body 1 and reduce misjudgment, thereby improving the tube placement efficiency.

[0023] Preferably, the developing structure 3 further includes a first transition layer 34, which is attached and fixed to both sides of the developing ring 31. The first transition layer 34 is made of silicone or polyurethane material. By providing the first transition layer 34 made of silicone or polyurethane material on both sides of the developing ring 31, the elastic modulus of the transition layer is between that of pure titanium and the tube body 1, thus playing a transitional role, extending the fatigue life of the tube body 1 under repeated bending, and reducing the probability of cracking or deformation of the tube body 1 around the developing ring 31.

[0024] Preferably, the developing structure 3 further includes a second transition layer 35, which is disposed at one end of the developing ring 31, and its two sides are respectively attached and fixed to the inner layer 32 and the outer layer 33. By providing the second transition layer 35 in the axial direction of the developing ring 31, the transition function is also achieved, thus extending the service life of the tube body 1.

[0025] Preferably, the outer walls of both the tube body 1 and the guidewire are coated with a hydrophilic coating. By coating with a hydrophilic coating, the frictional resistance between the tube body 1 and the guidewire when passing through narrow parts of the nasal cavity, esophagus and digestive tract is reduced, making the pushing operation smoother and reducing the risk of mucosal scratches or bleeding caused by repeated adjustments.

[0026] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A nasoenteric tube with an end-effectoral ultrasound-detectable structure, characterized in that, The device includes a tube body, an insertion guide wire, and a developing structure. The insertion guide wire has a handle at its end. The tube body has a connecting connector at its end. The developing structure is located at the front end of the tube body. The tube body has a cavity. The front end of the insertion guide wire passes through the connecting connector and extends into the cavity. The developing structure includes a developing ring made of pure titanium. The outer circumference of the tube body is coated with a scale.

2. The nasoenteric tube with ultrasound-detectable tip as described in claim 1, characterized in that, The axial length of the developing ring is 1 cm.

3. The nasoenteric tube with ultrasound-detectable tip as described in claim 1, characterized in that, The developing structure further includes an inner layer and an outer layer, and the developing ring is disposed between the inner layer and the outer layer. The materials of the inner layer and the outer layer are the same as those of the tube body and are integrally formed with the tube body.

4. The nasoenteric tube with ultrasound-detectable tip as described in claim 1, characterized in that, The outer surface of the developing ring is provided with a spiral groove.

5. A nasoenteric tube with ultrasound-detectable tip as described in claim 3, characterized in that, The developing structure further includes a first transition layer, which is attached and fixed to both sides of the developing ring. The first transition layer is made of silicone or polyurethane material.

6. A nasoenteric tube with ultrasound-detectable tip as described in claim 3, characterized in that, The developing structure further includes a second transition layer, which is disposed at one end of the developing ring, and the two sides of the second transition layer are respectively attached and fixed to the inner layer and the outer layer.

7. A nasoenteric tube with ultrasound-detectable tip as described in claim 1, characterized in that, The outer walls of both the tube and the guide wire are coated with a hydrophilic coating.

Images