Segmented controllable dialysis catheter

Abstract

This utility model discloses a segmented controllable dialysis catheter, comprising a Y-shaped main body, an outer tube, an inner tube, and a dialysis tube. The top two ends of the Y-shaped main body are respectively provided with an inlet tube and an outlet tube. The bottom end of the Y-shaped main body is provided with an outer tube, and the inner tube is nested inside the outer tube. The bottom end of the inner tube is provided with the dialysis tube. Connecting grooves are evenly distributed on both sides of the inner tube, and limiting grooves are provided at both ends of the connecting grooves. Pre-drilled holes are provided on both sides of the bottom of the inner tube, and connectors pass through the pre-drilled holes. Two sets of limiting blocks are provided at one end of each connector, and a handle is provided at one end of each connector. This utility model, through the installation of the Y-shaped main body, inner tube, outer tube, dialysis tube, through grooves, pre-drilled holes, connectors, and connecting grooves, and through a segmented structural design, can adjust the depth of the dialysis tube in the human body, improving the targeting and effectiveness of dialysis treatment.

Description

Technical Field

[0001] This utility model relates to the field of dialysis catheter technology, specifically a segmented controllable dialysis catheter. Background Technology

[0002] A dialysis catheter is a medical device primarily used in hemodialysis treatment to establish an extracorporeal blood circulation pathway, allowing the patient's blood to be smoothly drawn out of the body, purified by the dialyzer, and then returned to the body. This helps patients remove excess water and metabolic waste from their bodies, correct electrolyte and acid-base imbalances, and maintain the stability of the patient's internal environment.

[0003] As in the prior art patent CN209996876U, the lower part of the Y-section of this type of dialysis catheter extends into the patient's blood vessel. However, due to differences in the physical condition of different patients, the length of the lower part of the Y-section extending into the blood vessel may not be sufficient to reach the designated treatment position. Furthermore, in the prior art, the portion of the lower part of the Y-section of the dialysis catheter that extends into the blood vessel and the portion that does not extend into the blood vessel are located at the patient's skin wound. The hemostatic and infection-preventing protective device adapted to the skin wound is located at the lower end of the Y-section, resulting in a fixed length of the portion of the lower part of the Y-section that can extend into the blood vessel, which cannot be flexibly adjusted, affecting the dialysis treatment effect and failing to meet the personalized treatment needs of different patients. Therefore, a segmented controllable dialysis catheter is needed. Utility Model Content

[0004] The purpose of this invention is to provide a segmented, controllable dialysis catheter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a segmented controllable dialysis catheter, comprising a Y-shaped main body, an outer tube, an inner tube, and a dialysis tube. An inlet tube and an outlet tube are respectively provided at both ends of the top of the Y-shaped main body, and a connector is provided at one end of each of the inlet and outlet tubes. An outer tube is provided at the bottom of the Y-shaped main body, and an inner tube is sleeved inside the outer tube. A dialysis tube is provided at the bottom of the inner tube. Connecting grooves are evenly distributed on both sides of the inner tube, and limiting grooves are provided at both ends of each connecting groove. Reserved holes are provided on both sides of the bottom of the inner tube, and connectors pass through the reserved holes. Two sets of limiting blocks are provided at one end of each connector, and a handle is provided at one end of each connector.

[0006] Preferably, a central post is provided at the center of the connector, and the central post is connected to two sets of limiting blocks by metal springs.

[0007] Preferably, the limiting blocks are embedded in the limiting grooves, and the ends of the limiting blocks are arc-shaped.

[0008] Preferably, a sealing groove is provided at the bottom of the inner end of the outer tube, and a sealing ring is provided inside the sealing groove.

[0009] Preferably, the sealing ring is made of silicone material and is in close contact with the outer surface of the inner tube.

[0010] Preferably, a protective component is provided at the bottom end of the outer tube, and the protective component is made of medical-grade polyurethane elastomer material.

[0011] Preferably, the protective component has a fixing part on both sides, and the fixing part is uniformly provided with silicone adhesive protrusions.

[0012] Preferably, the top end of the dialysis tube is threadedly connected to the inner tube via a threaded block, and the dialysis tube is provided with through holes evenly distributed on it.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This segmented controllable dialysis catheter consists of a Y-shaped main body, an inner tube, an outer tube, a dialysis tube, a through groove, a reserved hole, a connector, a connecting groove, a central column, a metal spring, a limiting groove, and a limiting block. The dialysis tube is fixedly connected to the inner tube, which is located inside the outer tube. Connecting grooves are evenly opened on both sides of the inner tube, and a reserved hole is provided on one side of the outer tube. By sliding the inner tube in the outer tube, the depth of the dialysis tube in the human body can be adjusted. Then, the connector is inserted through the reserved hole, and one end of the connector is embedded in the connecting groove. The limiting block is located in... When passing through the limiting groove in the connecting groove, the inner tube is engaged in the limiting groove under the action of the metal spring, thereby fixing the inner tube and the outer tube. Through the segmented structural design, medical staff can control the position of the dialysis tube according to the actual situation of the patient, and accurately place the dialysis tube in the designated treatment area, improving the pertinence and effectiveness of dialysis treatment and meeting personalized treatment needs. In addition, the limiting block is engaged in the limiting groove under the action of the metal spring, firmly fixing the inner tube and the outer tube, preventing the dialysis tube from shifting in position due to factors such as patient body movement and blood flow impact during dialysis. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0016] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point B;

[0018] Figure 4 This is a schematic diagram of the dialysis tube structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the rear view of the present invention.

[0020] In the diagram: 1. Main body of Y section; 2. Outer tube; 3. Inner tube; 4. Dialysis tube; 5. Inlet tube; 6. Outlet tube; 7. Connector; 8. Reserved hole; 9. Connecting groove; 10. Connector; 11. Central column; 12. Limiting block; 13. Metal spring; 14. Limiting groove; 15. Sealing groove; 16. Sealing ring; 17. Threaded block; 18. Through hole; 19. Handle; 20. Protective component; 21. Fixing part; 22. Silicone adhesive protrusion. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figures 1-5 The present invention provides an embodiment of a segmented controllable dialysis catheter, comprising a Y-shaped main body 1, an outer tube 2, an inner tube 3, and a dialysis tube 4. An inlet tube 5 and an outlet tube 6 are respectively provided at both ends of the top of the Y-shaped main body 1, and a connector 7 is provided at one end of both the inlet tube 5 and the outlet tube 6. Medical staff connect the inlet tube 5 and the outlet tube 6 at the top of the Y-shaped main body 1 to the relevant dialysis equipment through the connector 7 to ensure that the tubing is unobstructed.

[0023] The bottom end of the Y-section main body 1 is provided with an outer tube 2, and an inner tube 3 is sleeved inside the outer tube 2. The bottom end of the inner tube 3 is provided with a dialysis tube 4.

[0024] The inner tube 3 has connecting grooves 9 evenly opened on both sides, and the two ends of the connecting groove 9 are provided with limiting grooves 14. The inner tube 3 has reserved holes 8 on both sides of the bottom, and the reserved holes 8 are provided with connectors 10 passing through them. The connectors 10 have two sets of limiting blocks 12 at one end, and the connectors 10 have handles 19 at one end.

[0025] Pull the connector 10 out of the reserved hole 8 to release the fixed state between the inner tube 3 and the outer tube 2. According to the patient's actual situation, slide the inner tube 3 inside the outer tube 2. Since the bottom end of the inner tube 3 is connected to the dialysis tube 4, the depth position of the dialysis tube 4 in the human body can be adjusted. The top end of the dialysis tube 4 is threadedly connected to the inner tube 3 through the threaded block 17, which is convenient for replacement.

[0026] A central post 11 is provided at the center of each connector 10, and each central post 11 is connected to two sets of limiting blocks 12 by a metal spring 13.

[0027] After the dialysis tube 4 is adjusted to the appropriate depth, the connector 10 is reinserted into the reserved hole 8, so that one end of the connector 10 is embedded in the connecting groove 9 of the inner tube 3. As the connector 10 is inserted, the limiting block 12 passes through the limiting groove 14 in the connecting groove 9. Under the elastic force of the metal spring 13, the limiting block 12 is locked into the limiting groove 14, thus completing the fixation of the inner tube 3 and the outer tube 2 and ensuring the stability of the dialysis tube 4.

[0028] This flexible connection method not only ensures the reliability of fixing the inner tube 3 and the outer tube 2, but also makes it easy for medical staff to operate the connector 10 through the handle 19, so as to achieve quick adjustment and fixation and improve the efficiency of clinical operation.

[0029] The limiting blocks 12 are respectively embedded in the limiting grooves 14, and the ends of the limiting blocks 12 are arc-shaped. The arc-shaped end design allows the limiting blocks 12 to smoothly transition and automatically engage when passing through the limiting grooves 14, reducing operating resistance.

[0030] The segmented structural design allows medical staff to precisely place the dialysis tube 4 to the designated treatment position according to the patient's actual condition, improving the targeting and effectiveness of dialysis treatment and meeting personalized treatment needs.

[0031] A sealing groove 15 is provided at the bottom of the inner tube 2, and a sealing ring 16 is provided inside the sealing groove 15.

[0032] The sealing ring 16 is made of silicone material and is in close contact with the outer surface of the inner tube 3. The sealing ring 16 has good elasticity and biocompatibility, fits tightly to the outer surface of the inner tube 3, and effectively prevents blood leakage. Even after the inner tube 3 is slidably adjusted, the sealing ring 16 can still maintain its sealing performance and reduce the risk of infection.

[0033] The bottom end of the outer tube 2 is provided with a protective component 20, which is made of medical-grade polyurethane elastomer material. This material has excellent flexibility and biocompatibility, and can comfortably fit the patient's skin wound, reducing foreign body sensation and discomfort.

[0034] Both sides of the protective component 20 are provided with fixing parts 21. Silicone adhesive protrusions 22 are evenly provided on the fixing parts 21 to provide a gentle and lasting adhesion force, which can ensure that the protective component 20 is firmly fixed on the skin and is easy for medical staff to remove when needed, reducing damage to the patient's skin.

[0035] After the dialysis machine is started, the patient's blood is drawn out through the inlet tube 5, transported to the dialysis machine for purification, and then returned to the patient's body through the outlet tube 6. The dialysis tube 4 has through holes 18 evenly distributed to increase the effective blood draw area. Even if some holes are blocked, the other holes can still maintain blood flow.

[0036] Working Principle: In this embodiment, medical personnel connect the inlet tube 5 and outlet tube 6 at the top of the Y-shaped main body 1 to the relevant dialysis equipment via connector 7, ensuring unobstructed tubing. Holding handle 19, they pull the connector 10 out of the pre-drilled hole 8, releasing the inner tube 3 from the outer tube 2. Based on the patient's actual condition, the inner tube 3 slides inside the outer tube 2. Since the bottom end of the inner tube 3 is connected to the dialysis tube 4, the depth of the dialysis tube 4 in the body can be adjusted. Once the dialysis tube 4 is adjusted to the appropriate depth, the connector 10 is reinserted into the pre-drilled hole 8, so that one end of the connector 10 is embedded in the connecting groove 9 of the inner tube 3. As the connector 10 is inserted, the limiting block 12 passes through the limiting groove 14 within the connecting groove 9, and under the elastic force of the metal spring 13... The limiting block 12 is inserted into the limiting groove 14 to fix the inner tube 3 and the outer tube 2, ensuring the stability of the dialysis tube 4. The silicone sealing ring 16 in the sealing groove 15 at the bottom of the outer tube 2 is in close contact with the outer surface of the inner tube 3 to prevent blood from leaking from the gap between the inner tube 3 and the outer tube 2, ensuring the safety of the dialysis process. The protective part 20 at the bottom of the outer tube 2 is made of medical-grade polyurethane elastomer material. The silicone adhesive protrusions 22 on the fixing parts 21 on both sides of the protective part 20 are tightly attached to the patient's wound to stop bleeding and prevent infection, while also accommodating possible slight displacement during dialysis. After the dialysis machine is started, the patient's blood is drawn out through the inlet tube 5, transported to the dialysis machine for purification, and then returned to the patient's body through the outlet tube 6.

[0037] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A segmented controllable dialysis catheter, characterized in that, The device includes a Y-shaped main body (1), an outer tube (2), an inner tube (3), and a dialysis tube (4). The top two ends of the Y-shaped main body (1) are respectively provided with an inlet tube (5) and an outlet tube (6), and one end of the inlet tube (5) and the outlet tube (6) is provided with a connector (7). The bottom end of the Y-shaped main body (1) is provided with an outer tube (2), and the inner tube (3) is sleeved inside the outer tube (2). The bottom end of the inner tube (3) is provided with a dialysis tube (4). The two sides of the inner tube (3) are evenly provided with connecting grooves (9), and the two ends of the connecting grooves (9) are provided with limiting grooves (14). The two sides of the bottom of the inner tube (3) are provided with reserved holes (8), and the interior of the reserved holes (8) is provided with connectors (10). One end of the connector (10) is provided with two sets of limiting blocks (12), and one end of the connector (10) is provided with a handle (19).

2. A segmented controllable dialysis catheter according to claim 1, characterized in that: Each connector (10) has a central post (11) at its center, and each central post (11) is connected to two sets of limiting blocks (12) by a metal spring (13).

3. A segmented controllable dialysis catheter according to claim 1, characterized in that: The limiting blocks (12) are respectively embedded in the limiting grooves (14), and the ends of the limiting blocks (12) are arc-shaped structures.

4. A segmented controllable dialysis catheter according to claim 1, characterized in that: The bottom of the outer tube (2) is provided with a sealing groove (15), and a sealing ring (16) is provided inside the sealing groove (15).

5. A segmented controllable dialysis catheter according to claim 4, characterized in that: The sealing ring (16) is made of silicone material and is in close contact with the outer surface of the inner tube (3).

6. A segmented controllable dialysis catheter according to claim 1, characterized in that: The bottom end of the outer tube (2) is provided with a protective component (20), and the protective component (20) is made of medical grade polyurethane elastomer material.

7. A segmented controllable dialysis catheter according to claim 6, characterized in that: The protective component (20) is provided with fixing parts (21) on both sides, and silicone adhesive protrusions (22) are uniformly provided on the fixing parts (21).

8. A segmented controllable dialysis catheter according to claim 1, characterized in that: The top end of the dialysis tube (4) is threadedly connected to the inner tube (3) via a threaded block (17), and through holes (18) are uniformly provided on the dialysis tube (4).

Images