Drainage tube in-vitro fixing device

Abstract

The utility model relates to the field of medical auxiliary instruments. The drainage tube in-vitro fixing device comprises a tube body fixing assembly used for fixing a drainage tube, the tube body fixing assembly comprises a base plate and a fixing cover, and the base plate and the fixing cover are detachably connected to define a cavity used for containing the drainage tube; notches arranged in a butt joint mode are formed between the base plate and the fixing cover, and the notches in the base plate and the fixing cover are in butt joint and communicated to form an upper pipe penetrating hole. A U-shaped notch is formed in the base plate, a baffle is detachably connected to the U-shaped notch, a lower pipe penetrating hole is defined by the U-shaped notch and the baffle, and the upper pipe penetrating hole and the lower pipe penetrating hole are located in the opposite sides of the base plate respectively; a winding column is fixed in the chassis, the outer diameter of the winding column is gradually increased from bottom to top, a spiral limiting groove for embedding a drainage tube is formed in the winding column, and the guiding direction of the spiral limiting groove is spirally upward; the outer side of the base plate is connected with a fixing piece used for being fixed to an in-vitro wearing piece. The fixing effect of the drainage tube is improved, and the drainage tube is prevented from loosening.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary devices, specifically to a drainage tube fixing device. Background Technology

[0002] Endoscopic nasobiliary drainage (ENBD) involves inserting a 250cm long 6-8Fr polyethylene catheter into the bile duct through a duodenoscopy to drain bile. This rapidly relieves biliary obstruction, reduces biliary pressure, and ensures unobstructed bile drainage, thus quickly alleviating the patient's condition and controlling infection. After removing the inserted catheter, approximately 75±10cm remains outside the body, leaving approximately 175±10cm. Clinically, double fixation with adhesive tape is typically used for the nasal ala and cheek area. The remaining longer portion is coiled and secured to the patient's gown with rubber bands and pins. However, this often results in messiness, tangling, bending, and folding, affecting the patency of drainage, the patient's daily life, causing safety hazards, increasing nursing workload, and impacting treatment outcomes.

[0003] Currently, there are also external fixation devices for drainage tubes with different structures. For example, CN113908351A discloses an intelligent drainage tube. The drawback is that the winding rod is a cylindrical structure with equal upper and lower parts, which is not conducive to ensuring the fixation effect of the drainage tube. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides an external fixation device for drainage tubes, which has solved at least one of the above-mentioned technical problems.

[0005] The technical solution of this utility model is: an external fixation device for a drainage tube, comprising a tube fixing assembly for fixing the drainage tube, characterized in that the tube fixing assembly comprises a base and a fixing cover, wherein the base and the fixing cover are detachably connected to form a cavity for accommodating the drainage tube.

[0006] A notch is provided between the chassis and the fixed cover for docking, and the notch on the chassis and the fixed cover are connected to form an upper through hole;

[0007] The chassis has a U-shaped notch, and a baffle is detachably connected to the U-shaped notch. The U-shaped notch and the baffle form a lower through hole, and the upper through hole and the lower through hole are located on opposite sides of the chassis.

[0008] A winding column is fixed inside the chassis. The outer diameter of the winding column increases from bottom to top. A spiral limiting groove for embedding a drainage tube is provided on the winding column. The guiding direction of the spiral limiting groove is spiral upward.

[0009] The outer side of the chassis is connected to a fastener for securing it to an external wearable device.

[0010] This invention optimizes the external fixation device for the drainage tube by combining a wide-at-the-top, narrow-at-the-bottom winding post with a spiral limiting groove, thereby improving the fixation effect of the drainage tube and preventing it from loosening. In use, the drainage tube is inserted through the lower insertion hole, coiled around the winding post, and exited through the upper insertion hole. The fixing cap is then placed on top to form a closed system.

[0011] More preferably, the outer wall of the chassis is provided with a longitudinally guiding guide rail, and the baffle is longitudinally slidably connected to the guide rail.

[0012] This allows for easy removal of the baffle.

[0013] More preferably, a silicone layer is attached to the bottom of the baffle.

[0014] Improve the clamping and fixing effect at the connection with the drainage tube.

[0015] More preferably, the upper side of the spiral limiting groove is provided with a downwardly extending limiting extension.

[0016] Improve the limiting and fixing effect of the drainage tube.

[0017] More preferably, the fastener includes an elastic band and a clip, one end of the elastic band being connected to the chassis and the other end of the elastic band being connected to the clip.

[0018] More preferably, a threaded rod is fixed on the chassis and threadedly connected to the winding column, and the winding column has a threaded hole that is threadedly connected to the threaded rod.

[0019] It facilitates the detachment of the winding column.

[0020] More preferably, the notch on the chassis is an isosceles trapezoid that is wider at the top and narrower at the bottom;

[0021] The notch on the fixed cover is an isosceles trapezoid that is narrower at the top and wider at the bottom.

[0022] It facilitates local clamping and fixing of the drainage tube, while still ensuring smooth drainage.

[0023] More preferably, the upper through-hole has a hexagonal structure, and the longitudinal length of the upper through-hole is less than the transverse length of the upper through-hole, and less than the outer diameter of the drainage tube.

[0024] Beneficial effects: This utility model optimizes the external fixation device for the drainage tube by combining a wide-at-the-top, narrow-at-the-bottom winding column with a spiral limiting groove, thereby improving the fixation effect of the drainage tube and preventing it from loosening. In use, the drainage tube is inserted through the lower insertion hole, coiled around the winding column, and exited through the upper insertion hole. The fixing cap is then placed on top to form a closed system. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the internal structure of a specific embodiment 1 of the present utility model;

[0026] Figure 2 This is a front view of a specific embodiment 1 of the present utility model;

[0027] Figure 3 This is a rear view of a specific embodiment 1 of the present utility model;

[0028] Figure 4 This is a schematic diagram of the structure of removing the baffle in specific embodiment 1 of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the mounting baffle in a specific embodiment 1 of this utility model.

[0030] In the diagram: 1 is the chassis, 2 is the fixed platform, 3 is the spiral column, 4 is the baffle, 5 is the upper through-hole, and 11 is the guide rail. Detailed Implementation

[0031] See Figures 1 to 5 Specific embodiment 1: An external fixation device for a drainage tube includes a tube fixing assembly for fixing the drainage tube. The tube fixing assembly includes a base plate 1 and a fixing cover 2. The base plate 1 and the fixing cover 2 are detachably connected to form a cavity for accommodating the drainage tube. A notch is provided between the base plate 1 and the fixing cover 2, and the notch on the base plate and the fixing cover 2 are connected to form an upper through-hole 5. A U-shaped notch is provided on the base plate 1, and a baffle 4 is detachably connected to the U-shaped notch. The U-shaped notch and the baffle 4 form a lower through-hole. The upper through-hole 5 and the lower through-hole are located on opposite sides of the base plate 1. A winding column 3 is fixed inside the base plate 1. The outer diameter of the winding column 3 increases from bottom to top. A spiral limiting groove for embedding the drainage tube is provided on the winding column 3. The guiding direction of the spiral limiting groove is spiral upward. A fixing member for fixing to an external wearable device is connected to the outside of the base plate 1. This invention optimizes the external fixation device for the drainage tube by combining a top-wide, bottom-narrow winding column 3 with a spiral limiting groove, thereby improving the fixation effect of the drainage tube and preventing it from loosening. In use, the drainage tube is inserted through the lower insertion hole, coiled around the winding column 3, and exited through the upper insertion hole 5. The fixing cap 2 is then placed on top to form a closed system.

[0032] The upper through-hole and the lower through-hole are located on the rear and front sides of the chassis, respectively.

[0033] The left end of the chassis is hinged to the left end of the fixed cover. The right end of the chassis is detachably connected to the right end of the fixed cover. The external wearable component can be clothing.

[0034] The spiral limiting groove has a U-shaped cross-section with the opening facing outwards, or a semi-circular opening with the opening facing outwards. The inner wall of the spiral limiting groove is lined with silicone particles to increase friction.

[0035] The outer wall of the chassis 1 is provided with a longitudinally guiding guide rail 11, and the baffle 4 is longitudinally slidably connected to the guide rail 11. This facilitates the detachment of the baffle 4.

[0036] A silicone layer is attached to the bottom of baffle 4 to improve the clamping and fixing effect at the connection with the drainage tube.

[0037] A downward-extending limiting extension is provided on the upper side of the spiral limiting groove. This improves the limiting and fixing effect of the drainage tube. The winding post can be a silicone part. The limiting extension achieves radial outer-side limiting of the drainage tube. The limiting extension is spirally arranged along the guiding direction of the spiral limiting groove.

[0038] The fasteners include an elastic band and a clamp. One end of the elastic band is connected to the chassis 1, and the other end of the elastic band is connected to the clamp.

[0039] A threaded rod for threaded connection of the winding column 3 is fixed on the chassis 1, and the winding column 3 has a threaded hole for threaded connection with the threaded rod. This facilitates the detachment of the winding column 3.

[0040] The notch on the chassis is an isosceles trapezoid, wider at the top and narrower at the bottom; the notch on the fixing cover 2 is also an isosceles trapezoid, narrower at the top and wider at the bottom. This facilitates local clamping and fixing of the drainage tube while ensuring unobstructed drainage. The upper through-hole 5 is hexagonal, and its longitudinal length is less than its transverse length and smaller than the outer diameter of the drainage tube. The lower through-hole is the chassis inlet end. The upper through-hole is the chassis outlet end. The top of the spiral limiting groove is the outlet end. The outlet direction of the outlet end is from front to back. The bottom of the spiral limiting groove is the inlet end. The outlet direction of the inlet end is from front to back. The inlet end and outlet end are located at the left and right ends of the winding column, respectively. The chassis outlet end is directly opposite the spiral limiting groove outlet end. The chassis inlet end is directly opposite the spiral limiting groove inlet end.

[0041] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An external fixation device for a drainage tube, comprising a tube fixation assembly for fixing the drainage tube, characterized in that, The tube fixing assembly includes a chassis and a fixing cover, the chassis and the fixing cover being detachably connected to form a cavity for accommodating the drainage tube; A notch is provided between the chassis and the fixed cover for docking, and the notch on the chassis and the fixed cover are connected to form an upper through hole; The chassis has a U-shaped notch, and a baffle is detachably connected to the U-shaped notch. The U-shaped notch and the baffle form a lower through hole, and the upper through hole and the lower through hole are located on opposite sides of the chassis. A winding column is fixed inside the chassis. The outer diameter of the winding column increases from bottom to top. A spiral limiting groove for embedding a drainage tube is provided on the winding column. The guiding direction of the spiral limiting groove is spiral upward. The outer side of the chassis is connected to a fastener for securing it to an external wearable device.

2. The external fixation device for the drainage tube according to claim 1, characterized in that: The outer wall of the chassis is provided with a longitudinally guiding rail, and the baffle is longitudinally slidably connected to the guide rail.

3. The external fixation device for the drainage tube according to claim 1, characterized in that: A silicone layer is attached to the bottom of the baffle.

4. The external fixation device for the drainage tube according to claim 1, characterized in that: The upper side of the spiral limiting groove is provided with a downwardly extending limiting extension.

5. The external fixation device for the drainage tube according to claim 1, characterized in that: The fastener includes an elastic band and a clip. One end of the elastic band is connected to the chassis, and the other end of the elastic band is connected to the clip.

6. The external fixation device for the drainage tube according to claim 1, characterized in that: The chassis is fixed with a threaded rod that is threadedly connected to the winding column, and the winding column has a threaded hole that is threadedly connected to the threaded rod.

7. The external fixation device for the drainage tube according to claim 1, characterized in that: The notch on the chassis is an isosceles trapezoid that is wider at the top and narrower at the bottom; The notch on the fixed cover is an isosceles trapezoid that is narrower at the top and wider at the bottom.

8. The external fixation device for the drainage tube according to claim 7, characterized in that: The upper through-hole has a hexagonal structure, and the longitudinal length of the upper through-hole is less than the transverse length of the upper through-hole, and less than the outer diameter of the drainage pipe.

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