Method and device for removing broken pipeline in dialysis catheter

Abstract

The invention provides a method and device for removing a broken pipeline in a dialysis catheter, and the method comprises the steps: heating the corresponding region of the dialysis catheter and the broken pipeline, applying negative pressure to the dialysis catheter after the broken pipeline in the dialysis catheter expands with heat and contracts with cold, and sucking out the broken pipeline in the dialysis catheter by using a siphon principle. By means of thermal expansion and cold contraction and the siphon principle, the broken pipeline in the dialysis catheter can be rapidly removed, and the infection risk in the removal process is low.

Description

Technical Field

[0001] This application belongs to the field of medical devices, and in particular relates to an automatic removal and recovery device for broken tubing in dialysis catheters. Background Technology

[0002] During hemodialysis, the dialysis catheter is typically placed inside the patient's body, connected to the central vein, and has a connector on the patient's skin. The blood tubing, on the other hand, is placed outside the patient and connected to the dialysis catheter connector. Due to repeated connections, material aging, or improper handling, the connector of the blood tubing can sometimes break, and the broken portion can become stuck inside the dialysis catheter connector, making it difficult to remove. Forcibly removing it could cause damage to the dialysis catheter, infection, or the introduction of a foreign body into the bloodstream, posing an extremely high risk.

[0003] Currently, there is no dedicated device or method for the aseptic and safe removal of broken catheters (blood vessels). Traditional solutions rely on surgical clamps or catheter tip replacement, which are complex, carry a high risk of infection, and are extremely challenging to perform in a sterile environment, especially in emergency situations, where efficient, non-invasive, and controllable methods are lacking. Therefore, there is an urgent need for a safe, efficient, controllable device for removing broken catheters that can maintain a sterile environment. Summary of the Invention

[0004] In view of this, this application provides a method and apparatus for removing broken tubing from a dialysis catheter, which aims to remove broken tubing from the dialysis catheter quickly and efficiently, and reduce the risk of infection during the removal of broken tubing.

[0005] In a first aspect, this application provides a method for removing a broken section of a dialysis catheter, comprising: The corresponding area of ​​the dialysis catheter and the broken tubing is heated, causing the broken tubing inside the dialysis catheter to expand and contract due to heat. Then, negative pressure is applied to the dialysis catheter, and the broken tubing inside the dialysis catheter is sucked out using the siphon principle.

[0006] Secondly, this application provides a device for removing a broken section of a dialysis catheter, comprising: Catheter connector adapter for sealing connection with dialysis catheters; The heating module is configured to heat the corresponding areas of the dialysis catheter and the broken tubing, causing the broken tubing to expand and contract thermally. The siphon negative pressure module is configured to apply negative pressure to the dialysis catheter through the catheter connector adapter, and use the siphon principle to suck out the broken catheter inside the dialysis catheter.

[0007] Optionally, the heating module includes: The device includes a flexible outer shell, a heating element, and a controller. The heating element is configured to cover the area corresponding to the dialysis catheter and the broken catheter. The flexible outer shell is used to protect the heating element, and the controller is used to control the heating element to heat the dialysis catheter.

[0008] Optionally, the flexible shell can be a silicone shell or a medical-grade plastic shell.

[0009] Optionally, the heating module also includes: The temperature detection unit detects that the temperature exceeds the temperature threshold. The controller then controls the heating element to stop heating.

[0010] Optionally, the heating module also includes: The communication unit is used to transmit the heating temperature of the heating element to the terminal.

[0011] Optionally, the siphon negative pressure module includes: a connecting pipeline and a negative pressure generating unit, wherein the connecting pipeline is connected to the dialysis catheter through a catheter connector adapter, and the negative pressure generating unit is used to apply negative pressure to the dialysis catheter through the connecting pipeline.

[0012] Optionally, the negative pressure generating unit includes either a syringe or a vacuum pump.

[0013] Optionally, the connecting pipeline includes: First connecting pipe, liquid collecting chamber, and second connecting pipe; One end of the first connecting pipe is connected to the conduit connector adapter, and the other end is connected to the liquid collection chamber. One end of the second connecting pipe is connected to the liquid collection chamber, and the other end is connected to the negative pressure generating unit.

[0014] Optionally, when the catheter connector adapter is connected to the dialysis catheter, a sealing ring is used to maintain a seal.

[0015] The beneficial effects of the technical solution provided in this application include: This application provides a method for removing a broken section of a dialysis catheter. The dialysis catheter and the broken section (blood circuit) are made of different materials. The dialysis catheter material is not sensitive to temperature, while the broken section (blood circuit) expands and contracts with temperature changes. By heating the corresponding areas of the dialysis catheter and the broken section (blood circuit), the broken section (blood circuit) expands and contracts, making it movable. Subsequently, by applying negative pressure to the dialysis catheter, the broken section is suctioned out. This method is convenient, simple to operate, and does not require disassembly or replacement of the dialysis catheter connector, resulting in a low risk of infection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A flowchart illustrating a method for removing a broken section of a dialysis catheter according to an embodiment of this application; Figure 2 A schematic diagram of the structure of a device for removing a broken section of a dialysis catheter provided in an embodiment of this application; Figure 3 This is a cross-sectional view of a heating module provided in one embodiment of this application.

[0018] The attached figures are labeled as follows: 1: Dialysis catheter; 10: Dialysis catheter connector; 11: Broken tubing; 2: Conduit connector adapter; 3: Heating module; 31: Heating element; 32: Housing; 33: Controller; 34: Temperature detection unit; 4: Siphon negative pressure module; 41: Negative pressure generating unit; 42: Connecting pipe; 421: First connecting pipe; 422: Liquid collection chamber; 423: Second connecting pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] Figure 1 This is a flowchart illustrating a method for removing a broken section of a dialysis catheter according to an embodiment of this application. See also... Figure 1 ,include: S101. Heat the corresponding area of ​​the dialysis catheter and the broken tubing, causing the broken tubing inside the dialysis catheter to expand and contract due to heat. Then apply negative pressure to the dialysis catheter and use the siphon principle to suck out the broken tubing inside the dialysis catheter.

[0021] This application provides a method for removing a broken section of a dialysis catheter. The dialysis catheter and the broken section (blood circuit) are made of different materials. The dialysis catheter material is not sensitive to temperature, while the broken section (blood circuit) expands and contracts with temperature changes. By heating the corresponding areas of the dialysis catheter and the broken section (blood circuit), the broken section (blood circuit) expands and contracts, making it movable. Subsequently, by applying negative pressure to the dialysis catheter, the broken section is suctioned out. This method is convenient, simple to operate, and does not require disassembly or replacement of the dialysis catheter connector, resulting in a low risk of infection.

[0022] Figure 2 This is a schematic diagram of a device for removing a broken section of a dialysis catheter according to an embodiment of this application. See also... Figure 2 ,include: Catheter connector adapter 2, for sealing connection with dialysis catheter 1; Heating module 3 is configured to heat the corresponding areas of dialysis catheter 1 and broken tubing 11, causing the broken tubing 11 to expand and contract thermally. The siphon negative pressure module 4 is configured to apply negative pressure to the dialysis catheter 1 through the catheter connector adapter 2, and use the siphon principle to suck out the broken catheter 11 inside the dialysis catheter.

[0023] In one example, dialysis catheter 1 is sealed to catheter connector adapter 2 via dialysis catheter connector 10. Figure 2 The diagram shows the separated dialysis catheter connector 10 and catheter connector adapter 2. After connection, the dialysis catheter structure 10 is located inside the catheter connector adapter 2.

[0024] See Figure 3 This is an embodiment of the application that provides the following... Figure 2 A cross-sectional view of AA', in one example, shows that heating module 3 includes: The system includes a flexible housing 32, a heating element 31, and a controller 33. The heating element 31 is configured to cover the area corresponding to the dialysis catheter 1 and the broken catheter 12. The flexible housing 32 is used to protect the heating element 31. The controller 33 is used to control the heating element 31 to heat the dialysis catheter 1.

[0025] by Figure 1 In the case of the above, the heating module 3 is arranged around the catheter connector adapter 2, and after connection, the dialysis catheter connector is located inside the catheter connector adapter 2, thereby realizing the heating of the dialysis catheter connector.

[0026] In one example, the flexible shell is a silicone shell or a medical-grade plastic shell.

[0027] In one example, the heating module 3 also includes: When the temperature detected by the temperature detection unit 34 exceeds the temperature threshold, the controller 33 controls the heating element to stop heating.

[0028] In one example, the heating module 3 also includes: A communication unit (not shown) is used to transmit the heating temperature of the heating element to a terminal (e.g., displaying a heating image on a mobile phone or monitor via Bluetooth).

[0029] In one example, the siphon negative pressure module 4 includes a connecting pipe 42 and a negative pressure generating unit 41. The connecting pipe 42 is connected to the dialysis catheter 1 through the catheter connector adapter 2, and the negative pressure generating unit 41 is used to apply negative pressure to the dialysis catheter through the connecting pipe.

[0030] In one example, the negative pressure generating unit 41 includes either a syringe or a vacuum pump.

[0031] In one example, the connecting conduit 42 includes: First connecting pipe 421, liquid collecting chamber 422, and second connecting pipe 423; One end of the first connecting pipe 421 is connected to the conduit connector adapter 2, and the other end is connected to the liquid collection chamber 422. One end of the second connecting pipe 423 is connected to the liquid collection chamber 422, and the other end is connected to the negative pressure generating unit 41.

[0032] In one example, when the catheter connector adapter 2 is connected to the dialysis catheter 1, a seal is maintained by a sealing ring.

[0033] In practical use, when a nurse encounters a broken catheter remnant inside a dialysis catheter, they remove the device of this invention, connect and secure the catheter connector adapter to the external connector of the dialysis catheter. After powering on, the heating module begins to operate, and the temperature rises slowly, with the display recording the time in real time. After approximately 2 minutes, the broken catheter deforms due to heat and becomes movable. At this point, the siphon negative pressure module is activated to generate negative pressure, and the broken tubing is slowly drawn out into the collection chamber. Throughout the entire process, the nurse does not need to insert any tools, a sterile environment is maintained, the catheter remains functional, and the operation takes approximately 5 minutes.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for removing a broken section of a dialysis catheter, characterized in that, include: The corresponding area of ​​the dialysis catheter and the broken tubing is heated, causing the broken tubing inside the dialysis catheter to expand and contract due to heat. Then, negative pressure is applied to the dialysis catheter, and the broken tubing inside the dialysis catheter is sucked out using the siphon principle.

2. A device for removing a broken section of a dialysis catheter, characterized in that, include: Catheter connector adapter for sealing connection with dialysis catheters; The heating module is configured to heat the corresponding areas of the dialysis catheter and the broken tubing, causing the broken tubing to expand and contract thermally. The siphon negative pressure module is configured to apply negative pressure to the dialysis catheter through the catheter connector adapter, and use the siphon principle to suck out the broken catheter inside the dialysis catheter.

3. The device for removing a broken section of a dialysis catheter according to claim 2, characterized in that, The heating module includes: The device includes a flexible outer shell, a heating element, and a controller. The heating element is configured to cover the area corresponding to the dialysis catheter and the broken catheter. The flexible outer shell is used to protect the heating element, and the controller is used to control the heating element to heat the dialysis catheter.

4. The device for removing a broken section of a dialysis catheter according to claim 3, characterized in that, The flexible outer shell is made of silicone or medical-grade plastic.

5. The device for removing a broken section of a dialysis catheter according to claim 3, characterized in that, The heating module also includes: The temperature detection unit detects that the temperature exceeds the temperature threshold. The controller then controls the heating element to stop heating.

6. The device for removing a broken section of a dialysis catheter according to claim 3, characterized in that, The heating module also includes: The communication unit is used to transmit the heating temperature of the heating element to the terminal.

7. The device for removing a broken section of a dialysis catheter according to any one of claims 2 to 6, characterized in that, The siphon negative pressure module includes a connecting pipeline and a negative pressure generating unit. The connecting pipeline is connected to the dialysis catheter through a catheter connector adapter, and the negative pressure generating unit is used to apply negative pressure to the dialysis catheter through the connecting pipeline.

8. The device for removing a broken section of a dialysis catheter according to claim 7, characterized in that, The negative pressure generating unit includes either a syringe or a vacuum pump.

9. The device for removing a broken section of a dialysis catheter according to claim 7, characterized in that, The connecting pipeline includes: First connecting pipe, liquid collecting chamber, and second connecting pipe; One end of the first connecting pipe is connected to the conduit connector adapter, and the other end is connected to the liquid collection chamber. One end of the second connecting pipe is connected to the liquid collection chamber, and the other end is connected to the negative pressure generating unit.

10. The device for removing a broken section of a dialysis catheter according to claim 7, characterized in that, When the catheter connector adapter is connected to the dialysis catheter, a sealing ring is used to maintain a seal.

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