Knotting-preventing drainage tube structure

Abstract

The utility model discloses an anti-knotting drainage tube structure, which belongs to the technical field of medical instruments and comprises a drainage tube, an elastic metal wire is wound on the outer side of the drainage tube along the length direction, a positioning groove is arranged on the surface of the drainage tube, the elastic metal wire is positioned in the positioning groove, and an outer sheath is arranged on the outer side of the drainage tube. The inner side of the outer sheath is attached to the surface of the drainage tube, the outer side of the elastic metal wire is attached to the inner side of the outer sheath, and an inserting mechanism connected with the injection base is arranged at the end of the drainage tube. The elastic metal wire is spirally wound on the outer side of the drainage tube, and the elastic metal wire is limited in the positioning groove, so that after the drainage tube is subjected to digital display bending, the drainage tube has a certain elastic reset effect by utilizing the elastic force effect of the elastic metal wire, knotting of the drainage tube is effectively avoided, conduction of the drainage tube is ensured, and the drainage tube is convenient to use. And the outer sheath is used for protecting the outside of the drainage tube, so that the smoothness of the surface of the drainage tube is ensured.

Description

Technical Field

[0001] The utility model relates to a drainage tube structure, in particular to an anti-knotting drainage tube structure, belonging to the technical field of medical devices. Background Art

[0002] In the prior art, such as the utility model with the application number 202121387988.3, a drainage tube structure for preventing knotting of an abdominal infusion port is disclosed. In order to solve the problem that the back-and-forth movement of the patient may cause the drainage tube to knot and coil, and the coiled drainage tube is not smooth, and the drug cannot be injected along the drainage tube, which affects the work efficiency of medical staff and the treatment progress of patients. By arranging an elastic band and an elastic rod on the surface of the drainage tube body, the resilience of the drainage tube body is increased, the flexibility of the drainage tube body is improved, and the drainage tube body is prevented from being easily folded and bent, thereby reducing the possibility of the drainage tube body folding and knotting. It is convenient for medical staff to inject the liquid medicine along the drainage tube body, reduces the difficulty of liquid medicine injection for medical staff, makes home care more convenient, and ensures a good quality of life for patients. Through the frustum design of the guiding tube, the right caliber of the guiding tube is smaller than the left caliber of the guiding tube. When the drainage tube body is docked with the guiding tube, the inclined surface of the guiding tube guides the drainage tube body, thus facilitating the installation and docking of the drainage tube body by medical staff. At the same time, a groove is circumferentially opened on the surface of the docking tube close to the guiding tube. After the drainage tube body is sleeved on the surface of the guiding tube, the inner wall of the connecting end of the drainage tube body contracts and contacts the docking tube, thereby ensuring the connection tightness after the drainage tube body is docked with the docking tube.

[0003] The similar applications currently still have deficiencies:

[0004] Although it can ensure a good reset effect of the drainage tube during use, the structure is relatively complex and the production cost is high. After being connected to the injection seat, the connection part is in a fixed state. After the patient wears it for a long time, it is easy to cause slight displacement of the drainage tube or the injection seat, and then cause the bending of the end of the drainage tube, affecting the infusion effect;

[0005] Therefore, an anti-knotting drainage tube structure is designed to optimize the above problems. Content of the Utility Model

[0006] The main purpose of the present utility model is to provide an anti-knotting drainage tube structure. By spirally winding an elastic metal wire on the outer side of the drainage tube, and the elastic metal wire is limited inside the positioning groove, after the drainage tube is bent several times, by the elastic force of the elastic metal wire, the drainage tube has a certain elastic reset function, effectively avoiding the knotting of the drainage tube and ensuring the conduction of the drainage tube. Then, an outer sheath is used to protect the outside of the drainage tube, ensuring the smoothness of the surface of the drainage tube. By installing a ball bead at the end of the drainage tube, and the ball bead is provided with a rear through hole and an open mouth, which is used in cooperation with the spherical groove on the connecting block, and then through the conduction between the front through hole and the slot, after the drainage tube is connected to the injection seat, the connection part can move and still be conductive at multiple angles, effectively avoiding the bending and blocking of the connection part and ensuring the infusion effect.

[0007] The purpose of the present utility model can be achieved by adopting the following technical solutions:

[0008] An anti-knotting drainage tube structure, including a drainage tube, an elastic metal wire is spirally wound and installed along the length direction on the outer side of the drainage tube, a positioning groove is opened on the surface of the drainage tube, the elastic metal wire is located inside the positioning groove, an outer sheath is arranged on the outer side of the drainage tube, the inner side of the outer sheath is attached to the surface of the drainage tube, and the outer side of the elastic metal wire is attached to the inner side of the outer sheath, and a plugging mechanism for connecting with an injection seat is arranged at the end of the drainage tube.

[0009] Preferably: The plugging mechanism includes a ball bead, a rear through hole, an open mouth, a connecting block, a spherical groove, a slot and a front through hole. The ball bead is fixed at the end of the drainage tube, a horn-shaped open mouth is opened on one side of the ball bead, a rear through hole is arranged between the tip of the open mouth and the inside of the drainage tube, a connecting block is arranged on the outer side of the ball bead, a spherical groove is opened at the end of the connecting block, the ball bead is rotatably installed inside the spherical groove, a slot is arranged at the end of the connecting block far away from the ball bead, and a front through hole is arranged between the slot and the spherical groove.

[0010] Preferably: A sealing ring is fixed on the outer side of the ball bead and at one end of the open mouth, and the outer side of the sealing ring is attached to the inner side of the spherical groove.

[0011] Preferably: A retaining ring is fixed at the middle position on the outer side of the connecting block, and both side surfaces of the retaining ring are flat surfaces.

[0012] Preferably: The production material of the elastic metal wire is a cobalt-nickel alloy or a stainless steel titanium alloy product, and the end face shape of the elastic metal wire is circular.

[0013] The beneficial effects of the present utility model are:

[0014] A knot - preventing drainage tube structure provided by the utility model wraps an elastic metal wire spirally on the outer side of the drainage tube, and the elastic metal wire is limited inside the positioning groove. After the drainage tube is bent several times, due to the elastic force of the elastic metal wire, the drainage tube has a certain elastic reset function, effectively avoiding the knotting of the drainage tube, ensuring the conduction of the drainage tube, and then using an outer sheath to protect the outside of the drainage tube, ensuring the smoothness of the surface of the drainage tube;

[0015] A ball bead is installed at the end of the drainage tube, and a rear through - port and an open port are opened on the ball bead, which is used in cooperation with the spherical groove on the connecting block. Then, through the conduction between the front through - port and the slot, after the drainage tube is connected to the injection seat, the connection part can move and still be conductive at multiple angles, effectively avoiding the bending and blocking of the connection part and ensuring the infusion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front - view sectional view of the utility model;

[0017] Figure 2 is the sectional view of the ball bead of the utility model;

[0018] Figure 3 is the front view of the utility model;

[0019] Figure 4 is the structural diagram of the outer side of the drainage tube of the utility model.

[0020] In the figure: 1. Drainage tube; 2. Elastic metal wire; 3. Positioning groove; 4. Outer sheath; 5. Ball bead; 6. Rear through - port; 7. Open port; 8. Connecting block; 9. Spherical groove; 10. Slot; 11. Front through - port; 12. Sealing ring; 13. Retaining ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the technical solutions of the utility model clearer and more definite for those skilled in the art, the following further describes the utility model in detail with reference to the embodiments and the accompanying drawings, but the embodiments of the utility model are not limited thereto.

[0022] As Figures 1 - 4 shown, this embodiment provides a knot - preventing drainage tube structure, including a drainage tube 1. An elastic metal wire 2 is wound and installed along the length direction on the outer side of the drainage tube 1. A positioning groove 3 is opened on the surface of the drainage tube 1. The elastic metal wire 2 is located inside the positioning groove 3. An outer sheath 4 is arranged on the outer side of the drainage tube 1. The inner side of the outer sheath 4 fits with the surface of the drainage tube 1, and the outer side of the elastic metal wire 2 fits with the inner side of the outer sheath 4. A plug - in mechanism for connecting with an injection seat is arranged at the end of the drainage tube 1.

[0023] Overall working principle: During installation, first insert the drainage tube 1 into the vein through a puncture needle, and then the connection mechanism connects the drainage tube 1 with the injection seat. When in use, since an elastic metal wire 2 is wound around the outer side of the drainage tube 1, the drainage tube 1 has a certain elastic reset effect, and the drainage tube 1 will not get knotted during the movement of the patient.

[0024] In this embodiment, the connection mechanism includes a ball bead 5, a rear through-hole 6, an open end 7, a connection block 8, a spherical groove 9, a slot 10, and a front through-hole 11. The ball bead 5 is fixed at the end of the drainage tube 1. A flared open end 7 is formed on one side of the ball bead 5. A rear through-hole 6 is provided between the tip of the open end 7 and the inside of the drainage tube 1. A connection block 8 is provided outside the ball bead 5. A spherical groove 9 is formed at the end of the connection block 8. The ball bead 5 is rotatably installed inside the spherical groove 9. A slot 10 is provided at the end of the connection block 8 away from the ball bead 5. A front through-hole 11 is provided between the slot 10 and the spherical groove 9.

[0025] Local working principle: When connecting with the injection seat, the plug on the injection seat is inserted into the inside of the slot 10 and is electrically connected to the inside of the connection block 8. During use, the ball bead 5 can rotate inside the spherical groove 9. Therefore, the end of the drainage tube 1 is movably connected to the connection block 8, and the drainage tube 1 will not be bent during the displacement of the injection seat or the drainage tube 1, ensuring the conductivity of the drainage tube 1.

[0026] In this embodiment, a sealing ring 12 is fixed on the outer side of the ball bead 5 and at one end of the open end 7. The outer side of the sealing ring 12 fits with the inner side of the spherical groove 9.

[0027] Local working principle: The use of the sealing ring 12 can prevent the solution from passing through the gap between the ball bead 5 and the spherical groove 9, ensuring the sealing effect.

[0028] In this embodiment, a retaining ring 13 is fixed at the middle position on the outer side of the connection block 8. Both side surfaces of the retaining ring 13 are flat.

[0029] Local working principle: During the plug-in installation process, the use of the retaining ring 13 can facilitate the limitation of the end of the finger, making the plug-in more convenient. After the plug-in is completed, the retaining ring 13 fits against the side of the injection seat, ensuring the plug-in depth.

[0030] In this embodiment, the manufacturing material of the elastic metal wire 2 is cobalt-nickel alloy or stainless steel titanium alloy product, and the end face shape of the elastic metal wire 2 is circular.

[0031] Local working principle: Cobalt-nickel alloy or stainless steel titanium alloy products have good compatibility with the human body and will not cause allergic reactions.

[0032] As described above, it is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the scope disclosed by the present utility model, according to the technical solution and concept of the present utility model, makes equivalent substitutions or changes, and all belong to the protection scope of the present utility model.

Claims

1. A knot - preventing drainage tube structure, comprising a drainage tube (1), characterized in that: An elastic metal wire (2) is wound and installed along the length direction on the outer side of the drainage tube (1). A positioning groove (3) is formed on the surface of the drainage tube (1). The elastic metal wire (2) is located inside the positioning groove (3). An outer sheath (4) is arranged on the outer side of the drainage tube (1). The inner side of the outer sheath (4) is attached to the surface of the drainage tube (1), and the outer side of the elastic metal wire (2) is attached to the inner side of the outer sheath (4). The end of the drainage tube (1) is provided with a plugging mechanism connected to the injection seat.

2. The anti-knotting drainage tube structure according to claim 1, wherein: The plugging mechanism includes a ball bead (5), a rear through port (6), an open port (7), a connecting block (8), a spherical groove (9), a slot (10) and a front through port (11). The ball bead (5) is fixed at the end of the drainage tube (1). A flared open port (7) is formed on one side of the ball bead (5). A rear through port (6) is arranged between the tip of the open port (7) and the inside of the drainage tube (1). A connecting block (8) is arranged on the outer side of the ball bead (5). A spherical groove (9) is formed at the end of the connecting block (8). The ball bead (5) is rotatably installed inside the spherical groove (9). A slot (10) is arranged at the end of the connecting block (8) away from the ball bead (5). A front through port (11) is arranged between the slot (10) and the spherical groove (9).

3. The anti-knotting drainage tube structure according to claim 2, characterized in that: A sealing ring (12) is fixed at one end of the outer side of the ball bead (5) and located at the open port (7). The outer side of the sealing ring (12) is attached to the inner side of the spherical groove (9).

4. The anti-knotting drainage tube structure according to claim 3, characterized in that: A retaining ring (13) is fixed at the middle position of the outer side of the connecting block (8). Both side surfaces of the retaining ring (13) are flat.

5. The structure of an anti-knotting drainage tube according to claim 4, characterized in that: The production material of the elastic metal wire (2) is a cobalt-nickel alloy or a stainless steel-titanium alloy product, and the end face shape of the elastic metal wire (2) is circular.

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