Heating device for interventional guide wire and catheter molding
By designing a high-efficiency PTC heating element and foot control switch inside the kettle, combined with an adjustable nozzle in a conical shape, the problems of inconvenient operation and insufficient flexibility of existing devices have been solved, achieving stable heating and efficient shaping of the conduit.
Patent Information
- Application Number
- CN202422976317.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing guide wire and catheter shaping and heating devices are inconvenient to operate, lack flexibility, cannot meet the needs of single-handed operation, and the air jet design is not flexible enough, resulting in poor shaping effect.
The heating device adopts a kettle-shaped structure, with a high-efficiency PTC heating element and insulation layer inside. It is equipped with a foot control switch and a conical air nozzle. The nozzle size can be adjusted to adapt to different diameter conduits, ensuring uniform heating and flexibility.
It achieves stable heating of the catheter, improves the convenience and safety of operation, enhances heating efficiency and molding accuracy, and adapts to the needs of catheters of different diameters.
Smart Images

Figure CN223818003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device design and manufacturing technology, and in particular to a heating device for shaping interventional guidewires and catheters. Background Technology
[0002] In interventional procedures, pretreatment, or shaping, is often required to ensure the catheter can be successfully inserted into complex vascular pathways. This process typically relies on specific heating devices to soften the catheter, allowing it to achieve the necessary bending angles without harming the patient. With the increasing prevalence of minimally invasive surgery and technological advancements, the demands on heating devices are also rising. They need to provide rapid and efficient heating while ensuring safety and ease of use.
[0003] Currently, common guidewire and catheter shaping heating devices on the market mainly include electromagnetic heaters, resistance heaters, and infrared heaters. These devices use different heating methods to bring the catheter to a suitable softening temperature, thus facilitating shaping. However, existing guidewire and catheter shaping heating devices generally suffer from inconvenience and lack of flexibility. For example, most devices require two hands to operate, failing to meet the needs of surgeons who require one-handed operation during surgery. Furthermore, the air jet design of some devices is not flexible enough to adapt well to catheters of different diameters, resulting in poor shaping effects. These problems seriously affect the efficiency and accuracy of guidewire and catheter shaping and urgently require improvement. Utility Model Content
[0004] This application provides a heating device for shaping interventional guidewire catheters, which facilitates stable heating of the catheter and is more convenient to use.
[0005] This application provides a heating device for shaping interventional guidewires and catheters, which adopts the following technical solution:
[0006] A heating device for shaping an interventional guidewire catheter includes a main structure, which is a pot body. A heating unit is disposed inside the pot body. A foot control switch is disposed at the bottom of the main structure. The foot control switch is connected to the heating unit via an electric wire and is used to control the start and stop of the heating unit. A pot lid is disposed at the top of the pot body. An air jet is disposed at the top of the pot lid and is used to connect the catheter.
[0007] By adopting the above technical solution, this utility model designs a heating device for shaping interventional guidewire catheters. In use, water is first added to the pot, and the heating unit inside the pot is turned on via a foot switch to heat the water. The foot switch is located at the bottom of the device and connected to the device via an electric wire, which in turn connects to the heating unit. This allows for easy one-handed operation by the doctor during surgery, enabling rapid switching between heating and stopping. When the temperature reaches 90°C, the generated steam is ejected from the nozzle. The nozzle is then connected to the catheter, and the steam softens and shapes the catheter. Once the doctor confirms that the softening level has been reached, the catheter is removed for use. Therefore, this heating device facilitates stable heating of the catheter and is more convenient to use.
[0008] Preferably, the heating unit uses a high-efficiency PTC heating element, and multiple high-efficiency PTC heating elements are evenly distributed in the kettle body. The high-efficiency PTC heating elements are interconnected and connected to the mains power supply via a power cord.
[0009] By adopting the above technical solution, the heating device for shaping the interventional guidewire catheter can achieve rapid and uniform heating during use, improving heating efficiency. Specifically, the high-efficiency PTC heating element has high heating efficiency and stability, and can quickly reach the required temperature. Simultaneously, multiple high-efficiency PTC heating elements are evenly distributed within the pot, ensuring uniform heat transfer and avoiding localized overheating or cold spots. Furthermore, the interconnection of the high-efficiency PTC heating elements and their connection to mains power via power lines ensure the stability and reliability of the heating unit.
[0010] Preferably, the inner wall of the kettle also includes a heat insulation layer to maintain the temperature after heating within the range of 85°C to 95°C.
[0011] By adopting the above technical solution, the heat insulation layer on the inner wall of the pot can effectively maintain the temperature within the range of 85℃ to 95℃ after heating during use, ensuring temperature stability during the heating process and avoiding uneven heating caused by temperature fluctuations, thereby improving the quality and consistency of guide wire and conduit shaping.
[0012] Preferably, the air nozzle is provided with a filter screen inside, which is used to prevent foreign objects from entering the main structure.
[0013] By adopting the above technical solution, a filter screen is installed inside the jet nozzle during use, which effectively prevents foreign objects from entering the main structure. On the one hand, this ensures the cleanliness of the heating device and avoids contamination of the conduit during the heating process; on the other hand, it prevents the connected conduit from becoming blocked.
[0014] Preferably, the jet nozzle has a conical design, which concentrates the ejected hot steam and improves heating efficiency.
[0015] By adopting the above technical solution, the conical jet nozzle is convenient to connect with the duct during use, and at the same time, it can make the water vapor ejected from the jet nozzle more uniform, so that the duct is heated more evenly.
[0016] Preferably, the jet nozzle includes a mounting part and an outlet part, the end of the outlet part is provided with a spray hole, the outlet part and the mounting part are threadedly connected to each other, and the jet nozzle can be connected to the outlet part with different sizes of spray holes to adapt to conduits of different diameters.
[0017] By adopting the above technical solution, the design of the jet nozzle allows the nozzle orifice to be adjusted according to the diameter of the connected conduit, thereby improving the flexibility and applicability of the jet nozzle and ensuring the consistency and reliability of the heating effect.
[0018] Preferably, the outer shell of the kettle is provided with a heat insulation layer, which is used to prevent the user from being scalded during operation.
[0019] By adopting the above technical solution, a heat insulation layer is provided on the outer shell of the kettle during use, which effectively prevents users from being burned by contact with high-temperature parts during operation and improves the safety of use.
[0020] Preferably, the foot switch includes a start button and a stop button, both of which are made of anti-slip material to prevent the user from slipping when using the foot switch.
[0021] By adopting the above technical solution, the foot switch can be quickly switched between start and stop via the start button and stop button during use. Both buttons are made of anti-slip material, which can effectively prevent users from accidentally operating the switch due to slipping.
[0022] In summary, this application has the following beneficial effects:
[0023] 1. The present invention relates to a heating device for shaping an interventional guidewire catheter. The high-efficiency PTC heating element installed inside the pot can evenly distribute heat, ensuring temperature consistency in the heating area and improving the accuracy and stability of guidewire catheter shaping.
[0024] 2. The present invention provides a heating device for shaping interventional guidewires and catheters. By setting a foot control switch, doctors can conveniently control the start and stop of the heating unit without interrupting the surgical procedure, thus improving the convenience and safety of the surgery.
[0025] 3. The heating device for shaping interventional guidewire catheters designed in this utility model has a conical jet nozzle, which makes the ejected hot steam more concentrated and improves the heating efficiency. At the same time, the jet nozzle can be adjusted to adapt to catheters of different diameters, thus improving the flexibility of the heating device. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of an embodiment;
[0027] Figure 2 This is a cross-sectional view showing the jet nozzle in the embodiment;
[0028] Explanation of reference numerals in the attached drawings: 1. Main structure; 2. Kettle body; 3. Heating unit; 31. High-efficiency PTC heating element; 4. Foot control switch; 41. Start button; 42. Stop button; 5. Kettle lid; 6. Air outlet; 61. Mounting part; 62. Outlet part; 7. Insulation layer; 8. Filter screen; 9. Heat insulation layer. Detailed Implementation
[0029] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0030] This utility model discloses a heating device for shaping interventional guidewire catheters, such as... Figure 1 and Figure 2 As shown, the device includes a main structure 1, which is a kettle body 2. A heating unit 3 is installed inside the kettle body 2. The heating unit 3 uses high-efficiency PTC heating elements 31, which are evenly distributed within the kettle body 2 and interconnected. They are powered by AC mains electricity via a power cord. This design ensures uniform and efficient heating, preventing localized overheating. An insulation layer 7 is also installed on the inner wall of the kettle body 2. This insulation layer 7 can be made of various materials, such as fiberglass or ceramic fiber. A waterproof protective shell can be installed on the outside of the high-efficiency PTC heating elements 31, allowing them to exist in a water-filled environment. A waterproof membrane can also be installed on the outside of the power cord. The function of the insulation layer 7 is to maintain the temperature within the range of 85℃ to 95℃ after heating, ensuring the conduit remains at a constant temperature during heating and preventing excessively high or low temperatures from affecting the shaping effect. A heat insulation layer 9 is installed on the outer shell of the kettle body 2. This heat insulation layer 9 can be made of materials such as silicone or rubber to prevent burns to the user during operation.
[0031] The main structure 1 has a foot switch 4 at the bottom. The foot switch 4 is connected to the heating unit 3 via a wire. The foot switch 4 is used to control the start and stop of the heating unit 3. The foot switch 4 includes a start button 41 and a stop button 42. Both the start button 41 and the stop button 42 are made of non-slip materials, such as soft plastic, to prevent the user from slipping when using the foot switch 4. This design improves the convenience and safety of operation. In addition, a certain distance is set between the start button 41 and the stop button 42 to prevent the user from stepping on both buttons at the same time.
[0032] The top of the kettle body 2 is provided with a lid 5, which is used to open and add clean water into the kettle body 2. The top of the lid 5 is provided with a jet nozzle 6, which is used to connect the conduit. The jet nozzle 6 is provided with a filter screen 8 inside, which can be made of stainless steel mesh, nylon mesh or other materials, to prevent foreign objects from entering the main structure 1 and to ensure the cleanliness of the heating process. The jet nozzle 6 adopts a conical design, which concentrates the hot steam and improves the heating efficiency. The jet nozzle 6 includes a mounting part 61 and an outlet part 62. The end of the outlet part 62 is provided with a spray hole. The outlet part 62 is threadedly connected to the mounting part 61. In use, by threading different outlet parts 62 to the mounting part 61, different sizes of spray holes can be selected, so as to better adapt to conduits of different diameters.
[0033] Working Principle: This utility model discloses a heating device for shaping interventional guidewire catheters. It utilizes the steam generated from heated water to soften and shape the catheter. A high-efficiency PTC heating element 31 and an insulation layer 7 ensure uniform and efficient heating. The conical nozzle 6 and adjustable nozzle outlet 62 enhance the device's applicability and heating efficiency. A foot switch 4 improves ease of operation and safety, while the insulation layer 9 prevents burns to the operator. Overall, this embodiment provides a highly efficient, safe, and easy-to-operate heating device for shaping guidewire catheters.
[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A heating device for shaping interventional guidewire catheters, characterized in that: The device includes a main structure (1), which is a kettle body (2). A heating unit (3) is installed inside the kettle body (2). A foot control switch (4) is installed at the bottom of the main structure (1). The foot control switch (4) is connected to the heating unit (3) via a wire and is used to control the start and stop of the heating unit (3). A kettle lid (5) is installed at the top of the kettle body (2). A jet nozzle (6) is installed at the top of the kettle lid (5). The jet nozzle (6) is used to connect a conduit.
2. The heating device for shaping an interventional guidewire catheter according to claim 1, characterized in that: The heating unit (3) uses a high-efficiency PTC heating element (31). Multiple high-efficiency PTC heating elements (31) are evenly distributed in the kettle body (2), and the high-efficiency PTC heating elements (31) are interconnected and connected to the mains power supply through a power cord.
3. The heating device for shaping an interventional guidewire catheter according to claim 1, characterized in that: The inner wall of the kettle body (2) also includes a heat insulation layer (7) for maintaining the temperature after heating within the range of 85°C to 95°C.
4. The heating device for shaping an interventional guidewire catheter according to claim 1, characterized in that: The air nozzle (6) is equipped with a filter screen (8) inside, which is used to prevent foreign objects from entering the main structure (1).
5. The heating device for shaping an interventional guidewire catheter according to claim 1, characterized in that: The jet nozzle (6) adopts a conical design, which concentrates the ejected hot steam and improves heating efficiency.
6. The heating device for shaping an interventional guidewire catheter according to claim 1, characterized in that: The jet nozzle (6) includes a mounting part (61) and an outlet part (62). The end of the outlet part (62) is provided with a spray hole. The outlet part (62) and the mounting part (61) are threaded together. The jet nozzle (6) can be connected to the outlet part (62) with different sizes of spray holes, so as to adapt to the conduit with different diameters.
7. The heating device for shaping an interventional guidewire catheter according to claim 1, characterized in that: The outer shell of the kettle body (2) is provided with a heat insulation layer (9), which is used to prevent the user from being scalded during operation.
8. The heating device for shaping an interventional guidewire catheter according to claim 1, characterized in that: The foot switch (4) includes a start button (41) and a stop button (42). Both the start button (41) and the stop button (42) are made of anti-slip material to prevent the user from slipping when using the foot switch (4).