Sticking device for fixing nasobiliary duct
By designing a nasobiliary fixation device with adhesive, limiting, and constraining components, the problem of the nasobiliary duct being pressed when the patient's head is turned is solved, achieving stable fixation of the nasobiliary duct and smooth bile flow, thus improving safety.
Patent Information
- Application Number
- CN202422891374.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing nasobiliary fixation devices are easily compressed when the patient's head is turned, affecting bile flow and thus have low safety.
A device for fixing the nasobiliary duct, comprising an adhesive component, a limiting component, and a restraining component, was designed. The nasobiliary duct is fixed by a clamping component and a threaded connection to prevent the patient from pressing on the nasobiliary duct with their body.
It effectively fixes the nasobiliary duct, preventing it from being pressed while the patient is sleeping, ensuring smooth bile flow, and improving the safety and stability of the device.
Smart Images

Figure CN223995234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to an adhesive device for fixing the nasobiliary duct. Background Technology
[0002] Endoscopic nasobiliary drainage is a routine endoscopic technique used in clinical practice. It can be directly applied to the treatment of obstructive jaundice, acute suppurative cholangitis, bile leakage, and other diseases. Postoperative placement of the nasobiliary tube allows for adequate bile drainage, reducing biliary pressure and lowering the probability of postoperative pancreatitis and cholangitis. It also allows for observation of bile characteristics and outflow. For acute suppurative cholangitis and delayed biliary hemorrhage, sensitive antibiotics or hemostatic agents can be injected through the nasobiliary drainage tube, demonstrating significant clinical efficacy.
[0003] For example, a bonding device for fixing a nasobiliary duct, disclosed in CN221732027U, includes a nasobiliary duct, a wrapping assembly, and a storage assembly. The wrapping assembly includes a first patch and a second patch, both with silicone sheets. The nasobiliary duct is fixed to the wrapping assembly via the silicone sheets. Part of the nasobiliary duct is rolled up and placed in the storage assembly. The first patch and the second patch, passing through the center of the first patch, are cross-wound around the outside of the nasobiliary duct. The device is attached to the patient's cheek using the fixing adhesive of the wrapping assembly. The nasobiliary duct extending from the nostril can be cross-attached using the first and second patches of the wrapping assembly, ensuring the stability of the nasobiliary duct, preventing slippage, and eliminating adhesive residue. Furthermore, this bonding device can accommodate nasobiliary ducts of different diameters, eliminating the need for different models and offering simplicity and convenience.
[0004] The aforementioned patent proposes that the nasobiliary duct is fixed and rolled up into a storage bag using strip tape. However, in actual use, because there is no supporting component, the patient cannot control the position of the storage bag while sleeping. As a result, when the head is turned, the head is likely to press on the storage bag, causing the nasobiliary duct to be compressed, affecting the flow of bile, and thus resulting in low safety.
[0005] Therefore, we propose an adhesive device for fixing the nasobiliary duct to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this invention is to provide an adhesive device for fixing the nasobiliary duct, so as to solve the problem mentioned in the background art that the head easily presses down on the storage bag, causing the nasobiliary duct to be pressed and affecting the flow of bile.
[0007] To achieve the above objectives, the present invention provides the following technical solution: an adhesive device for fixing a nasobiliary duct, comprising a nasobiliary duct, wherein an adhesive component is installed at one end of the nasobiliary duct, and a limiting component and a restraining component are installed at the other end of the nasobiliary duct, and a clamping component is installed between the interior of the limiting component and the restraining component.
[0008] The limiting component includes an elliptical block A and an elliptical strip installed at the middle of one side of the elliptical block A. The outer surface of the elliptical strip is provided with a spiral groove, and an elliptical hollow strip is installed at the middle of the elliptical strip. Bolts are threadedly connected to the outer surface of the elliptical block A and on both sides of the elliptical strip.
[0009] The constraint member includes an elliptical block B and an elliptical insert installed at the middle of one side of the elliptical block B. T-shaped grooves are provided on the outer surface of the elliptical block B and on both sides of the elliptical insert.
[0010] Preferably, the clamping member includes a rotating rod, and a threaded circular groove is formed at the middle end of the rotating rod on the side away from the T-shaped rotating groove.
[0011] Preferably, a positioning slot is provided at the middle of the elliptical strip and on both sides of the hollow elliptical strip, and a positioning strip is installed on one end face of the elliptical block B and on both sides of the elliptical insert.
[0012] Preferably, the clamping components are provided in two sets, and the two sets of clamping components are symmetrically installed about the vertical center line of the elliptical block B.
[0013] Preferably, a cam bar is installed on the outer surface of the rotating rod, and a limit block is installed on the outer surface of the rotating rod at the end away from the threaded groove.
[0014] Preferably, the adhesive component includes a patch, a left-bending strip is installed on one end face of the patch, a right-bending strip is installed on one end of the patch and below the left-bending strip, and the left-bending strip and the right-bending strip are set in opposite directions. A connecting strip is installed on one end face of the patch, and multiple sets of connecting strips are provided. The connecting strips are located on one side of the left-bending strip and the right-bending strip.
[0015] Preferably, an adhesive strip is installed at one end of the connecting strip, and anti-slip particles are installed on one side of the connecting strip.
[0016] Preferably, rubber strips are installed on both sides of the top of the left and right bending strips, and one end of the adhesive strip is located between the rubber strips.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. The present invention discloses an adhesive device for fixing a nasobiliary duct, wherein the nasobiliary duct is inserted into a semicircle formed by a left-bending pressure strip and a right-bending pressure strip, the left-bending pressure strip and the right-bending pressure strip press the nasobiliary duct, and an adhesive strip is pasted on the outer surface of the nasobiliary duct. The adhesive strip is pasted on the outer surface of the right-bending pressure strip and the left-bending pressure strip to fix the nasobiliary duct.
[0019] 2. The present invention discloses an adhesive device for fixing the nasobiliary duct. The nasobiliary duct is wrapped around the outer surface of the elliptical strip and is located inside the spiral groove. The bolt is threaded into the inside of the threaded circular groove to fix the position of the rotating rod. The set limiting and restraining components will protect the nasobiliary duct and prevent the patient's body from pressing on the nasobiliary duct. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0021] Figure 2 This is a three-dimensional structural diagram of the adhesive component of this utility model;
[0022] Figure 3 This is a three-dimensional structural diagram of the limiting component of this utility model;
[0023] Figure 4 This is a three-dimensional structural diagram of the constraint component of this utility model;
[0024] Figure 5 This is a three-dimensional structural diagram of the clamping component of this utility model.
[0025] In the diagram: 1. Adhesive component; 11. Patch; 12. Left-bend pressure strip; 13. Right-bend pressure strip; 14. Connecting strip; 15. Anti-slip particles; 16. Adhesive strip; 17. Rubber strip; 2. Nasal tube; 3. Limiting component; 31. Elliptical block A; 32. Bolt; 33. Elliptical strip; 34. Elliptical hollow strip; 35. Positioning slot; 36. Spiral groove; 4. Constraining component; 41. Elliptical block B; 42. Elliptical insert; 43. Positioning strip; 44. T-shaped rotating groove; 5. Clamping component; 51. Rotating rod; 52. Limiting round block; 53. Cam strip; 54. Threaded round groove. Detailed Implementation
[0026] 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.
[0027] Example 1: Please refer to Figure 1 and Figure 2 An adhesive device for fixing a nasobiliary duct includes a nasobiliary duct 2, an adhesive member 1 is installed at one end of the nasobiliary duct 2, a limiting member 3 and a restraining member 4 are installed at the other end of the nasobiliary duct 2, and a clamping member 5 is installed between the interior of the limiting member 3 and the restraining member 4.
[0028] The adhesive component 1 includes a patch 11. A left-bending pressure strip 12 is installed on one end face of the patch 11. A right-bending pressure strip 13 is installed on one end of the patch 11 and below the left-bending pressure strip 12. The left-bending pressure strip 12 and the right-bending pressure strip 13 are set in opposite directions. A connecting strip 14 is installed on one end face of the patch 11. Multiple sets of connecting strips 14 are provided. The connecting strips 14 are set on one side of the left-bending pressure strip 12 and the right-bending pressure strip 13. The left-bending pressure strip 12 and the right-bending pressure strip 13 are used to restrict the position of the nasobiliary duct 2 from both sides.
[0029] An adhesive strip 16 is installed at one end of the connecting strap 14, and anti-slip particles 15 are installed on one side of the connecting strap 14. The anti-slip particles 15 increase the friction between the nasobiliary duct 2 and the connecting strap 14.
[0030] Rubber strips 17 are installed on both sides of the top of the left-curved pressure strip 12 and the right-curved pressure strip 13, and one end of the adhesive strip 16 is located between the rubber strips 17. The rubber strips 17 are used to protect the patient's face.
[0031] In this embodiment: Before attaching the nasobiliary tube 2, the nasobiliary tube 2 is inserted into the semicircle formed by the left-curved pressure strip 12 and the right-curved pressure strip 13. The left-curved pressure strip 12 and the right-curved pressure strip 13 press down on the nasobiliary tube 2, and the outer surface of the nasobiliary tube 2 contacts the connecting strip 14. The adhesive strip 16 on one side of the left-curved pressure strip 12 is pulled to attach the adhesive strip 16 along the outer surface of the nasobiliary tube 2. One end of the remaining adhesive strip 16 is attached to the outer surface of the left-curved pressure strip 12. The adhesive strip 16 on the right-curved pressure strip 13 is then pulled. The adhesive strip 16 on one side of the 13 is used to stick the adhesive strip 16 along the outer surface of the nasobiliary duct 2. One end of the remaining adhesive strip 16 is attached to the outer surface of the right-curved pressure strip 13. Multiple sets of adhesive strips 16 are used to fix the position of the nasobiliary duct 2. After the position of the nasobiliary duct 2 is fixed, the patch 11 containing the nasobiliary duct 2 is attached to the patient's face. The connecting strip 14 increases the friction between the anti-slip beads 15 and the nasobiliary duct 2, so as to prevent the position of the nasobiliary duct 2 from changing when medical staff accidentally pull it.
[0032] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 3-5 The limiting component 3 includes an elliptical block A31 and an elliptical strip 33 installed at the middle of one side of the elliptical block A31. The outer surface of the elliptical strip 33 is provided with a spiral groove 36. An elliptical hollow strip 34 is installed at the middle of the elliptical strip 33. Bolts 32 are threadedly connected to the outer surface of the elliptical block A31 and on both sides of the elliptical strip 33.
[0033] The constraint member 4 includes an elliptical block B41 and an elliptical insert 42 installed at the middle of one side of the elliptical block B41. T-shaped grooves 44 are provided on the outer surface of the elliptical block B41 and on both sides of the elliptical insert 42.
[0034] The clamping member 5 includes a rotating rod 51, and a threaded circular groove 54 is provided at the middle end of the rotating rod 51 on the side away from the T-shaped rotating groove 44. The threaded end of the bolt 32 is threaded into the interior of the threaded circular groove 54.
[0035] Positioning slots 35 are provided at the middle of the elliptical strip 33 and on both sides of the elliptical hollow strip 34. Positioning strips 43 are installed on one end face of the elliptical block B41 and on both sides of the elliptical insert 42. The positioning strips 43 and the positioning slots 35 are used together to position the installation of elliptical block B41 and elliptical block A31.
[0036] The clamping member 5 is provided in two sets. The two sets of clamping members 5 are symmetrically installed about the vertical center line of the elliptical block B41. The two sets of clamping members 5 are used to constrain the position of the nasobiliary duct 2 located between the limiting member 3 and the constraint member 4.
[0037] A cam strip 53 is installed on the outer surface of the rotating rod 51, and a limit block 52 is installed on the outer surface of the rotating rod 51 away from the threaded groove 54. The limit block 52 is movably installed inside the T-shaped rotating groove 44.
[0038] In this embodiment: the remaining part of the nasobiliary duct 2 is wound around the outer surface of the elliptical strip 33. The nasobiliary duct 2 is located inside the spiral groove 36, which restricts the position of the nasobiliary duct 2. After the nasobiliary duct 2 is wound, the elliptical block B41 is held and the positioning strip 43 and the elliptical insert 42 are inserted into the positioning slot 35 and the elliptical hollow strip 34, respectively. When one side of the elliptical block B41 contacts one end of the elliptical strip 33, the position of the cam strip 53 is manually rotated and adjusted. The rotating rod 51 rotates with the cam strip 53, and the outer wall of the cam strip 53 contacts the outer surface of the nasobiliary duct 2. After the positions of the two sets of cam strips 53 are adjusted, the bolt 32 is threaded into the threaded circular groove 54 to fix the position of the rotating rod 51. The limiting component 3, the restraining component 4 and the clamping component 5 are installed. When the patient is asleep, the limiting component 3 and the restraining component 4 will protect the nasobiliary duct 2 and prevent the patient's body from pressing on the nasobiliary duct 2.
[0039] Working principle: The nasobiliary tube 2 is wound around the outer surface of the elliptical strip 33. The nasobiliary tube 2 is located inside the spiral groove 36. The positioning strip 43 and the elliptical insert 42 are respectively inserted into the positioning slot 35 and the elliptical hollow strip 34. The outer wall of the cam strip 53 contacts the outer surface of the nasobiliary tube 2. The bolt 32 is threaded into the threaded circular groove 54 to fix the position of the rotating rod 51. The limiting component 3 and the constraint component 4 will protect the nasobiliary tube 2 and prevent the patient's body from pressing on the nasobiliary tube 2.
[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An adhesive device for fixing a naso- biliary tube comprising a naso-biliary tube (2), characterized in that: One end of the nasobiliary duct (2) is provided with a sticking member (1), the other end of the nasobiliary duct (2) is provided with a limiting member (3) and a constraint member (4), the inside of the limiting member (3) and the constraint member (4) is provided with a clamping member (5); The limiting member (3) comprises an oval block A (31) and an oval strip (33) installed at the middle end of one side of the oval block A (31), the outer surface of the oval strip (33) is provided with a spiral groove (36), the middle end of the oval strip (33) is provided with an oval hollow long strip (34), and the outer surface of the oval block A (31) and on both sides of the oval strip (33) are threadedly connected with bolts (32). The constraint member (4) comprises an oval block B (41) and an oval insertion strip (42) installed at the middle end of one side of the oval block B (41), and the outer surface of the oval block B (41) and on both sides of the oval insertion strip (42) are provided with T-shaped turning grooves (44).
2. The adhesive device for securing a naso-biliary tube according to claim 1, wherein: The clamping member (5) comprises a rotating rod (51), and the middle end of one side of the rotating rod (51) away from the T-shaped turning groove (44) is provided with a threaded circular groove (54).
3. The adhesive device for securing a naso-biliary tube according to claim 1, wherein: The middle end of the oval strip (33) and on both sides of the oval hollow long strip (34) are provided with positioning insertion grooves (35), and one end surface of the oval block B (41) and on both sides of the oval insertion strip (42) are provided with positioning strips (43).
4. The adhesive device for securing a naso-biliary tube according to claim 2, wherein: The clamping member (5) is provided with two groups, and the two groups of clamping members (5) are symmetrically installed about the vertical center line of the oval block B (41).
5. The adhesive device for securing a naso- biliary tube according to claim 4, wherein: The outer surface of the rotating rod (51) is provided with a cam strip (53), and one end of the outer surface of the rotating rod (51) away from the threaded circular groove (54) is provided with a limiting circular block (52).
6. The adhesive device for securing a naso- biliary tube according to claim 1, wherein: The sticking member (1) comprises a patch (11), one end surface of the patch (11) is provided with a left bending pressing strip (12), one end of the patch (11) and below the left bending pressing strip (12) is provided with a right bending pressing strip (13), and the directions of the left bending pressing strip (12) and the right bending pressing strip (13) are opposite, one end surface of the patch (11) is provided with a connecting belt (14), the connecting belt (14) is provided with multiple groups, and the connecting belt (14) is arranged on one side of the left bending pressing strip (12) and the right bending pressing strip (13).
7. The adhesive device for securing a naso- biliary tube according to claim 6, wherein: One end of the connecting belt (14) is provided with a sticking strip (16), and one side of the connecting belt (14) is provided with anti-skid particles (15).
8. The adhesive device for securing a naso-biliary tube according to claim 7, wherein: The top ends of the left bending pressing strip (12) and the right bending pressing strip (13) are provided with rubber strips (17) on both sides, and one end of the sticking strip (16) is between the rubber strips (17).
Citation Information
Patent Citations
Sticking device for fixing nasobiliary duct
CN221732027U